VirtualBox

source: vbox/trunk/src/VBox/VMM/VMMR3/CPUMR3CpuId.cpp@ 87758

Last change on this file since 87758 was 87003, checked in by vboxsync, 4 years ago

VMM/CPUM: todo regarding CpuId 0x80000008:ECX being reserved on Intel.

  • Property svn:eol-style set to native
  • Property svn:keywords set to Author Date Id Revision
File size: 340.5 KB
Line 
1/* $Id: CPUMR3CpuId.cpp 87003 2020-11-27 14:28:41Z vboxsync $ */
2/** @file
3 * CPUM - CPU ID part.
4 */
5
6/*
7 * Copyright (C) 2013-2020 Oracle Corporation
8 *
9 * This file is part of VirtualBox Open Source Edition (OSE), as
10 * available from http://www.virtualbox.org. This file is free software;
11 * you can redistribute it and/or modify it under the terms of the GNU
12 * General Public License (GPL) as published by the Free Software
13 * Foundation, in version 2 as it comes in the "COPYING" file of the
14 * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15 * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16 */
17
18
19/*********************************************************************************************************************************
20* Header Files *
21*********************************************************************************************************************************/
22#define LOG_GROUP LOG_GROUP_CPUM
23#include <VBox/vmm/cpum.h>
24#include <VBox/vmm/dbgf.h>
25#include <VBox/vmm/hm.h>
26#include <VBox/vmm/nem.h>
27#include <VBox/vmm/ssm.h>
28#include "CPUMInternal.h"
29#include <VBox/vmm/vmcc.h>
30#include <VBox/vmm/mm.h>
31#include <VBox/sup.h>
32
33#include <VBox/err.h>
34#include <iprt/asm-amd64-x86.h>
35#include <iprt/ctype.h>
36#include <iprt/mem.h>
37#include <iprt/string.h>
38
39
40/*********************************************************************************************************************************
41* Defined Constants And Macros *
42*********************************************************************************************************************************/
43/** For sanity and avoid wasting hyper heap on buggy config / saved state. */
44#define CPUM_CPUID_MAX_LEAVES 2048
45/* Max size we accept for the XSAVE area. */
46#define CPUM_MAX_XSAVE_AREA_SIZE 10240
47/* Min size we accept for the XSAVE area. */
48#define CPUM_MIN_XSAVE_AREA_SIZE 0x240
49
50
51/*********************************************************************************************************************************
52* Global Variables *
53*********************************************************************************************************************************/
54/**
55 * The intel pentium family.
56 */
57static const CPUMMICROARCH g_aenmIntelFamily06[] =
58{
59 /* [ 0(0x00)] = */ kCpumMicroarch_Intel_P6, /* Pentium Pro A-step (says sandpile.org). */
60 /* [ 1(0x01)] = */ kCpumMicroarch_Intel_P6, /* Pentium Pro */
61 /* [ 2(0x02)] = */ kCpumMicroarch_Intel_Unknown,
62 /* [ 3(0x03)] = */ kCpumMicroarch_Intel_P6_II, /* PII Klamath */
63 /* [ 4(0x04)] = */ kCpumMicroarch_Intel_Unknown,
64 /* [ 5(0x05)] = */ kCpumMicroarch_Intel_P6_II, /* PII Deschutes */
65 /* [ 6(0x06)] = */ kCpumMicroarch_Intel_P6_II, /* Celeron Mendocino. */
66 /* [ 7(0x07)] = */ kCpumMicroarch_Intel_P6_III, /* PIII Katmai. */
67 /* [ 8(0x08)] = */ kCpumMicroarch_Intel_P6_III, /* PIII Coppermine (includes Celeron). */
68 /* [ 9(0x09)] = */ kCpumMicroarch_Intel_P6_M_Banias, /* Pentium/Celeron M Banias. */
69 /* [10(0x0a)] = */ kCpumMicroarch_Intel_P6_III, /* PIII Xeon */
70 /* [11(0x0b)] = */ kCpumMicroarch_Intel_P6_III, /* PIII Tualatin (includes Celeron). */
71 /* [12(0x0c)] = */ kCpumMicroarch_Intel_Unknown,
72 /* [13(0x0d)] = */ kCpumMicroarch_Intel_P6_M_Dothan, /* Pentium/Celeron M Dothan. */
73 /* [14(0x0e)] = */ kCpumMicroarch_Intel_Core_Yonah, /* Core Yonah (Enhanced Pentium M). */
74 /* [15(0x0f)] = */ kCpumMicroarch_Intel_Core2_Merom, /* Merom */
75 /* [16(0x10)] = */ kCpumMicroarch_Intel_Unknown,
76 /* [17(0x11)] = */ kCpumMicroarch_Intel_Unknown,
77 /* [18(0x12)] = */ kCpumMicroarch_Intel_Unknown,
78 /* [19(0x13)] = */ kCpumMicroarch_Intel_Unknown,
79 /* [20(0x14)] = */ kCpumMicroarch_Intel_Unknown,
80 /* [21(0x15)] = */ kCpumMicroarch_Intel_P6_M_Dothan, /* Tolapai - System-on-a-chip. */
81 /* [22(0x16)] = */ kCpumMicroarch_Intel_Core2_Merom,
82 /* [23(0x17)] = */ kCpumMicroarch_Intel_Core2_Penryn,
83 /* [24(0x18)] = */ kCpumMicroarch_Intel_Unknown,
84 /* [25(0x19)] = */ kCpumMicroarch_Intel_Unknown,
85 /* [26(0x1a)] = */ kCpumMicroarch_Intel_Core7_Nehalem, /* Nehalem-EP */
86 /* [27(0x1b)] = */ kCpumMicroarch_Intel_Unknown,
87 /* [28(0x1c)] = */ kCpumMicroarch_Intel_Atom_Bonnell, /* Diamonville, Pineview, */
88 /* [29(0x1d)] = */ kCpumMicroarch_Intel_Core2_Penryn,
89 /* [30(0x1e)] = */ kCpumMicroarch_Intel_Core7_Nehalem, /* Clarksfield, Lynnfield, Jasper Forest. */
90 /* [31(0x1f)] = */ kCpumMicroarch_Intel_Core7_Nehalem, /* Only listed by sandpile.org. 2 cores ABD/HVD, whatever that means. */
91 /* [32(0x20)] = */ kCpumMicroarch_Intel_Unknown,
92 /* [33(0x21)] = */ kCpumMicroarch_Intel_Unknown,
93 /* [34(0x22)] = */ kCpumMicroarch_Intel_Unknown,
94 /* [35(0x23)] = */ kCpumMicroarch_Intel_Unknown,
95 /* [36(0x24)] = */ kCpumMicroarch_Intel_Unknown,
96 /* [37(0x25)] = */ kCpumMicroarch_Intel_Core7_Westmere, /* Arrandale, Clarksdale. */
97 /* [38(0x26)] = */ kCpumMicroarch_Intel_Atom_Lincroft,
98 /* [39(0x27)] = */ kCpumMicroarch_Intel_Atom_Saltwell,
99 /* [40(0x28)] = */ kCpumMicroarch_Intel_Unknown,
100 /* [41(0x29)] = */ kCpumMicroarch_Intel_Unknown,
101 /* [42(0x2a)] = */ kCpumMicroarch_Intel_Core7_SandyBridge,
102 /* [43(0x2b)] = */ kCpumMicroarch_Intel_Unknown,
103 /* [44(0x2c)] = */ kCpumMicroarch_Intel_Core7_Westmere, /* Gulftown, Westmere-EP. */
104 /* [45(0x2d)] = */ kCpumMicroarch_Intel_Core7_SandyBridge, /* SandyBridge-E, SandyBridge-EN, SandyBridge-EP. */
105 /* [46(0x2e)] = */ kCpumMicroarch_Intel_Core7_Nehalem, /* Beckton (Xeon). */
106 /* [47(0x2f)] = */ kCpumMicroarch_Intel_Core7_Westmere, /* Westmere-EX. */
107 /* [48(0x30)] = */ kCpumMicroarch_Intel_Unknown,
108 /* [49(0x31)] = */ kCpumMicroarch_Intel_Unknown,
109 /* [50(0x32)] = */ kCpumMicroarch_Intel_Unknown,
110 /* [51(0x33)] = */ kCpumMicroarch_Intel_Unknown,
111 /* [52(0x34)] = */ kCpumMicroarch_Intel_Unknown,
112 /* [53(0x35)] = */ kCpumMicroarch_Intel_Atom_Saltwell, /* ?? */
113 /* [54(0x36)] = */ kCpumMicroarch_Intel_Atom_Saltwell, /* Cedarview, ++ */
114 /* [55(0x37)] = */ kCpumMicroarch_Intel_Atom_Silvermont,
115 /* [56(0x38)] = */ kCpumMicroarch_Intel_Unknown,
116 /* [57(0x39)] = */ kCpumMicroarch_Intel_Unknown,
117 /* [58(0x3a)] = */ kCpumMicroarch_Intel_Core7_IvyBridge,
118 /* [59(0x3b)] = */ kCpumMicroarch_Intel_Unknown,
119 /* [60(0x3c)] = */ kCpumMicroarch_Intel_Core7_Haswell,
120 /* [61(0x3d)] = */ kCpumMicroarch_Intel_Core7_Broadwell,
121 /* [62(0x3e)] = */ kCpumMicroarch_Intel_Core7_IvyBridge,
122 /* [63(0x3f)] = */ kCpumMicroarch_Intel_Core7_Haswell,
123 /* [64(0x40)] = */ kCpumMicroarch_Intel_Unknown,
124 /* [65(0x41)] = */ kCpumMicroarch_Intel_Unknown,
125 /* [66(0x42)] = */ kCpumMicroarch_Intel_Unknown,
126 /* [67(0x43)] = */ kCpumMicroarch_Intel_Unknown,
127 /* [68(0x44)] = */ kCpumMicroarch_Intel_Unknown,
128 /* [69(0x45)] = */ kCpumMicroarch_Intel_Core7_Haswell,
129 /* [70(0x46)] = */ kCpumMicroarch_Intel_Core7_Haswell,
130 /* [71(0x47)] = */ kCpumMicroarch_Intel_Core7_Broadwell, /* i7-5775C */
131 /* [72(0x48)] = */ kCpumMicroarch_Intel_Unknown,
132 /* [73(0x49)] = */ kCpumMicroarch_Intel_Unknown,
133 /* [74(0x4a)] = */ kCpumMicroarch_Intel_Atom_Silvermont,
134 /* [75(0x4b)] = */ kCpumMicroarch_Intel_Unknown,
135 /* [76(0x4c)] = */ kCpumMicroarch_Intel_Atom_Airmount,
136 /* [77(0x4d)] = */ kCpumMicroarch_Intel_Atom_Silvermont,
137 /* [78(0x4e)] = */ kCpumMicroarch_Intel_Core7_Skylake,
138 /* [79(0x4f)] = */ kCpumMicroarch_Intel_Core7_Broadwell, /* Broadwell-E */
139 /* [80(0x50)] = */ kCpumMicroarch_Intel_Unknown,
140 /* [81(0x51)] = */ kCpumMicroarch_Intel_Unknown,
141 /* [82(0x52)] = */ kCpumMicroarch_Intel_Unknown,
142 /* [83(0x53)] = */ kCpumMicroarch_Intel_Unknown,
143 /* [84(0x54)] = */ kCpumMicroarch_Intel_Unknown,
144 /* [85(0x55)] = */ kCpumMicroarch_Intel_Core7_Skylake, /* server cpu; skylake <= 4, cascade lake > 5 */
145 /* [86(0x56)] = */ kCpumMicroarch_Intel_Core7_Broadwell, /* Xeon D-1540, Broadwell-DE */
146 /* [87(0x57)] = */ kCpumMicroarch_Intel_Phi_KnightsLanding,
147 /* [88(0x58)] = */ kCpumMicroarch_Intel_Unknown,
148 /* [89(0x59)] = */ kCpumMicroarch_Intel_Unknown,
149 /* [90(0x5a)] = */ kCpumMicroarch_Intel_Atom_Silvermont, /* Moorefield */
150 /* [91(0x5b)] = */ kCpumMicroarch_Intel_Unknown,
151 /* [92(0x5c)] = */ kCpumMicroarch_Intel_Atom_Goldmont, /* Apollo Lake */
152 /* [93(0x5d)] = */ kCpumMicroarch_Intel_Atom_Silvermont, /* x3-C3230 */
153 /* [94(0x5e)] = */ kCpumMicroarch_Intel_Core7_Skylake, /* i7-6700K */
154 /* [95(0x5f)] = */ kCpumMicroarch_Intel_Atom_Goldmont, /* Denverton */
155 /* [96(0x60)] = */ kCpumMicroarch_Intel_Unknown,
156 /* [97(0x61)] = */ kCpumMicroarch_Intel_Unknown,
157 /* [98(0x62)] = */ kCpumMicroarch_Intel_Unknown,
158 /* [99(0x63)] = */ kCpumMicroarch_Intel_Unknown,
159 /*[100(0x64)] = */ kCpumMicroarch_Intel_Unknown,
160 /*[101(0x65)] = */ kCpumMicroarch_Intel_Atom_Silvermont, /* SoFIA */
161 /*[102(0x66)] = */ kCpumMicroarch_Intel_Core7_CannonLake, /* unconfirmed */
162 /*[103(0x67)] = */ kCpumMicroarch_Intel_Unknown,
163 /*[104(0x68)] = */ kCpumMicroarch_Intel_Unknown,
164 /*[105(0x69)] = */ kCpumMicroarch_Intel_Unknown,
165 /*[106(0x6a)] = */ kCpumMicroarch_Intel_Unknown,
166 /*[107(0x6b)] = */ kCpumMicroarch_Intel_Unknown,
167 /*[108(0x6c)] = */ kCpumMicroarch_Intel_Unknown,
168 /*[109(0x6d)] = */ kCpumMicroarch_Intel_Unknown,
169 /*[110(0x6e)] = */ kCpumMicroarch_Intel_Atom_Airmount, /* or silvermount? */
170 /*[111(0x6f)] = */ kCpumMicroarch_Intel_Unknown,
171 /*[112(0x70)] = */ kCpumMicroarch_Intel_Unknown,
172 /*[113(0x71)] = */ kCpumMicroarch_Intel_Unknown,
173 /*[114(0x72)] = */ kCpumMicroarch_Intel_Unknown,
174 /*[115(0x73)] = */ kCpumMicroarch_Intel_Unknown,
175 /*[116(0x74)] = */ kCpumMicroarch_Intel_Unknown,
176 /*[117(0x75)] = */ kCpumMicroarch_Intel_Atom_Airmount, /* or silvermount? */
177 /*[118(0x76)] = */ kCpumMicroarch_Intel_Unknown,
178 /*[119(0x77)] = */ kCpumMicroarch_Intel_Unknown,
179 /*[120(0x78)] = */ kCpumMicroarch_Intel_Unknown,
180 /*[121(0x79)] = */ kCpumMicroarch_Intel_Unknown,
181 /*[122(0x7a)] = */ kCpumMicroarch_Intel_Atom_GoldmontPlus,
182 /*[123(0x7b)] = */ kCpumMicroarch_Intel_Unknown,
183 /*[124(0x7c)] = */ kCpumMicroarch_Intel_Unknown,
184 /*[125(0x7d)] = */ kCpumMicroarch_Intel_Unknown,
185 /*[126(0x7e)] = */ kCpumMicroarch_Intel_Core7_IceLake, /* unconfirmed */
186 /*[127(0x7f)] = */ kCpumMicroarch_Intel_Unknown,
187 /*[128(0x80)] = */ kCpumMicroarch_Intel_Unknown,
188 /*[129(0x81)] = */ kCpumMicroarch_Intel_Unknown,
189 /*[130(0x82)] = */ kCpumMicroarch_Intel_Unknown,
190 /*[131(0x83)] = */ kCpumMicroarch_Intel_Unknown,
191 /*[132(0x84)] = */ kCpumMicroarch_Intel_Unknown,
192 /*[133(0x85)] = */ kCpumMicroarch_Intel_Phi_KnightsMill,
193 /*[134(0x86)] = */ kCpumMicroarch_Intel_Unknown,
194 /*[135(0x87)] = */ kCpumMicroarch_Intel_Unknown,
195 /*[136(0x88)] = */ kCpumMicroarch_Intel_Unknown,
196 /*[137(0x89)] = */ kCpumMicroarch_Intel_Unknown,
197 /*[138(0x8a)] = */ kCpumMicroarch_Intel_Unknown,
198 /*[139(0x8b)] = */ kCpumMicroarch_Intel_Unknown,
199 /*[140(0x8c)] = */ kCpumMicroarch_Intel_Unknown,
200 /*[141(0x8d)] = */ kCpumMicroarch_Intel_Unknown,
201 /*[142(0x8e)] = */ kCpumMicroarch_Intel_Core7_KabyLake, /* Stepping >= 0xB is Whiskey Lake, 0xA is CoffeeLake. */
202 /*[143(0x8f)] = */ kCpumMicroarch_Intel_Unknown,
203 /*[144(0x90)] = */ kCpumMicroarch_Intel_Unknown,
204 /*[145(0x91)] = */ kCpumMicroarch_Intel_Unknown,
205 /*[146(0x92)] = */ kCpumMicroarch_Intel_Unknown,
206 /*[147(0x93)] = */ kCpumMicroarch_Intel_Unknown,
207 /*[148(0x94)] = */ kCpumMicroarch_Intel_Unknown,
208 /*[149(0x95)] = */ kCpumMicroarch_Intel_Unknown,
209 /*[150(0x96)] = */ kCpumMicroarch_Intel_Unknown,
210 /*[151(0x97)] = */ kCpumMicroarch_Intel_Unknown,
211 /*[152(0x98)] = */ kCpumMicroarch_Intel_Unknown,
212 /*[153(0x99)] = */ kCpumMicroarch_Intel_Unknown,
213 /*[154(0x9a)] = */ kCpumMicroarch_Intel_Unknown,
214 /*[155(0x9b)] = */ kCpumMicroarch_Intel_Unknown,
215 /*[156(0x9c)] = */ kCpumMicroarch_Intel_Unknown,
216 /*[157(0x9d)] = */ kCpumMicroarch_Intel_Unknown,
217 /*[158(0x9e)] = */ kCpumMicroarch_Intel_Core7_KabyLake, /* Stepping >= 0xB is Whiskey Lake, 0xA is CoffeeLake. */
218 /*[159(0x9f)] = */ kCpumMicroarch_Intel_Unknown,
219};
220AssertCompile(RT_ELEMENTS(g_aenmIntelFamily06) == 0x9f+1);
221
222
223/**
224 * Figures out the (sub-)micro architecture given a bit of CPUID info.
225 *
226 * @returns Micro architecture.
227 * @param enmVendor The CPU vendor .
228 * @param bFamily The CPU family.
229 * @param bModel The CPU model.
230 * @param bStepping The CPU stepping.
231 */
232VMMR3DECL(CPUMMICROARCH) CPUMR3CpuIdDetermineMicroarchEx(CPUMCPUVENDOR enmVendor, uint8_t bFamily,
233 uint8_t bModel, uint8_t bStepping)
234{
235 if (enmVendor == CPUMCPUVENDOR_AMD)
236 {
237 switch (bFamily)
238 {
239 case 0x02: return kCpumMicroarch_AMD_Am286; /* Not really kosher... */
240 case 0x03: return kCpumMicroarch_AMD_Am386;
241 case 0x23: return kCpumMicroarch_AMD_Am386; /* SX*/
242 case 0x04: return bModel < 14 ? kCpumMicroarch_AMD_Am486 : kCpumMicroarch_AMD_Am486Enh;
243 case 0x05: return bModel < 6 ? kCpumMicroarch_AMD_K5 : kCpumMicroarch_AMD_K6; /* Genode LX is 0x0a, lump it with K6. */
244 case 0x06:
245 switch (bModel)
246 {
247 case 0: return kCpumMicroarch_AMD_K7_Palomino;
248 case 1: return kCpumMicroarch_AMD_K7_Palomino;
249 case 2: return kCpumMicroarch_AMD_K7_Palomino;
250 case 3: return kCpumMicroarch_AMD_K7_Spitfire;
251 case 4: return kCpumMicroarch_AMD_K7_Thunderbird;
252 case 6: return kCpumMicroarch_AMD_K7_Palomino;
253 case 7: return kCpumMicroarch_AMD_K7_Morgan;
254 case 8: return kCpumMicroarch_AMD_K7_Thoroughbred;
255 case 10: return kCpumMicroarch_AMD_K7_Barton; /* Thorton too. */
256 }
257 return kCpumMicroarch_AMD_K7_Unknown;
258 case 0x0f:
259 /*
260 * This family is a friggin mess. Trying my best to make some
261 * sense out of it. Too much happened in the 0x0f family to
262 * lump it all together as K8 (130nm->90nm->65nm, AMD-V, ++).
263 *
264 * Emperical CPUID.01h.EAX evidence from revision guides, wikipedia,
265 * cpu-world.com, and other places:
266 * - 130nm:
267 * - ClawHammer: F7A/SH-CG, F5A/-CG, F4A/-CG, F50/-B0, F48/-C0, F58/-C0,
268 * - SledgeHammer: F50/SH-B0, F48/-C0, F58/-C0, F4A/-CG, F5A/-CG, F7A/-CG, F51/-B3
269 * - Newcastle: FC0/DH-CG (erratum #180: FE0/DH-CG), FF0/DH-CG
270 * - Dublin: FC0/-CG, FF0/-CG, F82/CH-CG, F4A/-CG, F48/SH-C0,
271 * - Odessa: FC0/DH-CG (erratum #180: FE0/DH-CG)
272 * - Paris: FF0/DH-CG, FC0/DH-CG (erratum #180: FE0/DH-CG),
273 * - 90nm:
274 * - Winchester: 10FF0/DH-D0, 20FF0/DH-E3.
275 * - Oakville: 10FC0/DH-D0.
276 * - Georgetown: 10FC0/DH-D0.
277 * - Sonora: 10FC0/DH-D0.
278 * - Venus: 20F71/SH-E4
279 * - Troy: 20F51/SH-E4
280 * - Athens: 20F51/SH-E4
281 * - San Diego: 20F71/SH-E4.
282 * - Lancaster: 20F42/SH-E5
283 * - Newark: 20F42/SH-E5.
284 * - Albany: 20FC2/DH-E6.
285 * - Roma: 20FC2/DH-E6.
286 * - Venice: 20FF0/DH-E3, 20FC2/DH-E6, 20FF2/DH-E6.
287 * - Palermo: 10FC0/DH-D0, 20FF0/DH-E3, 20FC0/DH-E3, 20FC2/DH-E6, 20FF2/DH-E6
288 * - 90nm introducing Dual core:
289 * - Denmark: 20F30/JH-E1, 20F32/JH-E6
290 * - Italy: 20F10/JH-E1, 20F12/JH-E6
291 * - Egypt: 20F10/JH-E1, 20F12/JH-E6
292 * - Toledo: 20F32/JH-E6, 30F72/DH-E6 (single code variant).
293 * - Manchester: 20FB1/BH-E4, 30FF2/BH-E4.
294 * - 90nm 2nd gen opteron ++, AMD-V introduced (might be missing in some cheaper models):
295 * - Santa Ana: 40F32/JH-F2, /-F3
296 * - Santa Rosa: 40F12/JH-F2, 40F13/JH-F3
297 * - Windsor: 40F32/JH-F2, 40F33/JH-F3, C0F13/JH-F3, 40FB2/BH-F2, ??20FB1/BH-E4??.
298 * - Manila: 50FF2/DH-F2, 40FF2/DH-F2
299 * - Orleans: 40FF2/DH-F2, 50FF2/DH-F2, 50FF3/DH-F3.
300 * - Keene: 40FC2/DH-F2.
301 * - Richmond: 40FC2/DH-F2
302 * - Taylor: 40F82/BH-F2
303 * - Trinidad: 40F82/BH-F2
304 *
305 * - 65nm:
306 * - Brisbane: 60FB1/BH-G1, 60FB2/BH-G2.
307 * - Tyler: 60F81/BH-G1, 60F82/BH-G2.
308 * - Sparta: 70FF1/DH-G1, 70FF2/DH-G2.
309 * - Lima: 70FF1/DH-G1, 70FF2/DH-G2.
310 * - Sherman: /-G1, 70FC2/DH-G2.
311 * - Huron: 70FF2/DH-G2.
312 */
313 if (bModel < 0x10)
314 return kCpumMicroarch_AMD_K8_130nm;
315 if (bModel >= 0x60 && bModel < 0x80)
316 return kCpumMicroarch_AMD_K8_65nm;
317 if (bModel >= 0x40)
318 return kCpumMicroarch_AMD_K8_90nm_AMDV;
319 switch (bModel)
320 {
321 case 0x21:
322 case 0x23:
323 case 0x2b:
324 case 0x2f:
325 case 0x37:
326 case 0x3f:
327 return kCpumMicroarch_AMD_K8_90nm_DualCore;
328 }
329 return kCpumMicroarch_AMD_K8_90nm;
330 case 0x10:
331 return kCpumMicroarch_AMD_K10;
332 case 0x11:
333 return kCpumMicroarch_AMD_K10_Lion;
334 case 0x12:
335 return kCpumMicroarch_AMD_K10_Llano;
336 case 0x14:
337 return kCpumMicroarch_AMD_Bobcat;
338 case 0x15:
339 switch (bModel)
340 {
341 case 0x00: return kCpumMicroarch_AMD_15h_Bulldozer; /* Any? prerelease? */
342 case 0x01: return kCpumMicroarch_AMD_15h_Bulldozer; /* Opteron 4200, FX-81xx. */
343 case 0x02: return kCpumMicroarch_AMD_15h_Piledriver; /* Opteron 4300, FX-83xx. */
344 case 0x10: return kCpumMicroarch_AMD_15h_Piledriver; /* A10-5800K for e.g. */
345 case 0x11: /* ?? */
346 case 0x12: /* ?? */
347 case 0x13: return kCpumMicroarch_AMD_15h_Piledriver; /* A10-6800K for e.g. */
348 }
349 return kCpumMicroarch_AMD_15h_Unknown;
350 case 0x16:
351 return kCpumMicroarch_AMD_Jaguar;
352 case 0x17:
353 return kCpumMicroarch_AMD_Zen_Ryzen;
354 }
355 return kCpumMicroarch_AMD_Unknown;
356 }
357
358 if (enmVendor == CPUMCPUVENDOR_INTEL)
359 {
360 switch (bFamily)
361 {
362 case 3:
363 return kCpumMicroarch_Intel_80386;
364 case 4:
365 return kCpumMicroarch_Intel_80486;
366 case 5:
367 return kCpumMicroarch_Intel_P5;
368 case 6:
369 if (bModel < RT_ELEMENTS(g_aenmIntelFamily06))
370 {
371 CPUMMICROARCH enmMicroArch = g_aenmIntelFamily06[bModel];
372 if (enmMicroArch == kCpumMicroarch_Intel_Core7_KabyLake)
373 {
374 if (bStepping >= 0xa && bStepping <= 0xc)
375 enmMicroArch = kCpumMicroarch_Intel_Core7_CoffeeLake;
376 else if (bStepping >= 0xc)
377 enmMicroArch = kCpumMicroarch_Intel_Core7_WhiskeyLake;
378 }
379 else if ( enmMicroArch == kCpumMicroarch_Intel_Core7_Skylake
380 && bModel == 0x55
381 && bStepping >= 5)
382 enmMicroArch = kCpumMicroarch_Intel_Core7_CascadeLake;
383 return enmMicroArch;
384 }
385 return kCpumMicroarch_Intel_Atom_Unknown;
386 case 15:
387 switch (bModel)
388 {
389 case 0: return kCpumMicroarch_Intel_NB_Willamette;
390 case 1: return kCpumMicroarch_Intel_NB_Willamette;
391 case 2: return kCpumMicroarch_Intel_NB_Northwood;
392 case 3: return kCpumMicroarch_Intel_NB_Prescott;
393 case 4: return kCpumMicroarch_Intel_NB_Prescott2M; /* ?? */
394 case 5: return kCpumMicroarch_Intel_NB_Unknown; /*??*/
395 case 6: return kCpumMicroarch_Intel_NB_CedarMill;
396 case 7: return kCpumMicroarch_Intel_NB_Gallatin;
397 default: return kCpumMicroarch_Intel_NB_Unknown;
398 }
399 break;
400 /* The following are not kosher but kind of follow intuitively from 6, 5 & 4. */
401 case 0:
402 return kCpumMicroarch_Intel_8086;
403 case 1:
404 return kCpumMicroarch_Intel_80186;
405 case 2:
406 return kCpumMicroarch_Intel_80286;
407 }
408 return kCpumMicroarch_Intel_Unknown;
409 }
410
411 if (enmVendor == CPUMCPUVENDOR_VIA)
412 {
413 switch (bFamily)
414 {
415 case 5:
416 switch (bModel)
417 {
418 case 1: return kCpumMicroarch_Centaur_C6;
419 case 4: return kCpumMicroarch_Centaur_C6;
420 case 8: return kCpumMicroarch_Centaur_C2;
421 case 9: return kCpumMicroarch_Centaur_C3;
422 }
423 break;
424
425 case 6:
426 switch (bModel)
427 {
428 case 5: return kCpumMicroarch_VIA_C3_M2;
429 case 6: return kCpumMicroarch_VIA_C3_C5A;
430 case 7: return bStepping < 8 ? kCpumMicroarch_VIA_C3_C5B : kCpumMicroarch_VIA_C3_C5C;
431 case 8: return kCpumMicroarch_VIA_C3_C5N;
432 case 9: return bStepping < 8 ? kCpumMicroarch_VIA_C3_C5XL : kCpumMicroarch_VIA_C3_C5P;
433 case 10: return kCpumMicroarch_VIA_C7_C5J;
434 case 15: return kCpumMicroarch_VIA_Isaiah;
435 }
436 break;
437 }
438 return kCpumMicroarch_VIA_Unknown;
439 }
440
441 if (enmVendor == CPUMCPUVENDOR_SHANGHAI)
442 {
443 switch (bFamily)
444 {
445 case 6:
446 case 7:
447 return kCpumMicroarch_Shanghai_Wudaokou;
448 default:
449 break;
450 }
451 return kCpumMicroarch_Shanghai_Unknown;
452 }
453
454 if (enmVendor == CPUMCPUVENDOR_CYRIX)
455 {
456 switch (bFamily)
457 {
458 case 4:
459 switch (bModel)
460 {
461 case 9: return kCpumMicroarch_Cyrix_5x86;
462 }
463 break;
464
465 case 5:
466 switch (bModel)
467 {
468 case 2: return kCpumMicroarch_Cyrix_M1;
469 case 4: return kCpumMicroarch_Cyrix_MediaGX;
470 case 5: return kCpumMicroarch_Cyrix_MediaGXm;
471 }
472 break;
473
474 case 6:
475 switch (bModel)
476 {
477 case 0: return kCpumMicroarch_Cyrix_M2;
478 }
479 break;
480
481 }
482 return kCpumMicroarch_Cyrix_Unknown;
483 }
484
485 if (enmVendor == CPUMCPUVENDOR_HYGON)
486 {
487 switch (bFamily)
488 {
489 case 0x18:
490 return kCpumMicroarch_Hygon_Dhyana;
491 default:
492 break;
493 }
494 return kCpumMicroarch_Hygon_Unknown;
495 }
496
497 return kCpumMicroarch_Unknown;
498}
499
500
501/**
502 * Translates a microarchitecture enum value to the corresponding string
503 * constant.
504 *
505 * @returns Read-only string constant (omits "kCpumMicroarch_" prefix). Returns
506 * NULL if the value is invalid.
507 *
508 * @param enmMicroarch The enum value to convert.
509 */
510VMMR3DECL(const char *) CPUMR3MicroarchName(CPUMMICROARCH enmMicroarch)
511{
512 switch (enmMicroarch)
513 {
514#define CASE_RET_STR(enmValue) case enmValue: return #enmValue + (sizeof("kCpumMicroarch_") - 1)
515 CASE_RET_STR(kCpumMicroarch_Intel_8086);
516 CASE_RET_STR(kCpumMicroarch_Intel_80186);
517 CASE_RET_STR(kCpumMicroarch_Intel_80286);
518 CASE_RET_STR(kCpumMicroarch_Intel_80386);
519 CASE_RET_STR(kCpumMicroarch_Intel_80486);
520 CASE_RET_STR(kCpumMicroarch_Intel_P5);
521
522 CASE_RET_STR(kCpumMicroarch_Intel_P6);
523 CASE_RET_STR(kCpumMicroarch_Intel_P6_II);
524 CASE_RET_STR(kCpumMicroarch_Intel_P6_III);
525
526 CASE_RET_STR(kCpumMicroarch_Intel_P6_M_Banias);
527 CASE_RET_STR(kCpumMicroarch_Intel_P6_M_Dothan);
528 CASE_RET_STR(kCpumMicroarch_Intel_Core_Yonah);
529
530 CASE_RET_STR(kCpumMicroarch_Intel_Core2_Merom);
531 CASE_RET_STR(kCpumMicroarch_Intel_Core2_Penryn);
532
533 CASE_RET_STR(kCpumMicroarch_Intel_Core7_Nehalem);
534 CASE_RET_STR(kCpumMicroarch_Intel_Core7_Westmere);
535 CASE_RET_STR(kCpumMicroarch_Intel_Core7_SandyBridge);
536 CASE_RET_STR(kCpumMicroarch_Intel_Core7_IvyBridge);
537 CASE_RET_STR(kCpumMicroarch_Intel_Core7_Haswell);
538 CASE_RET_STR(kCpumMicroarch_Intel_Core7_Broadwell);
539 CASE_RET_STR(kCpumMicroarch_Intel_Core7_Skylake);
540 CASE_RET_STR(kCpumMicroarch_Intel_Core7_KabyLake);
541 CASE_RET_STR(kCpumMicroarch_Intel_Core7_CoffeeLake);
542 CASE_RET_STR(kCpumMicroarch_Intel_Core7_WhiskeyLake);
543 CASE_RET_STR(kCpumMicroarch_Intel_Core7_CascadeLake);
544 CASE_RET_STR(kCpumMicroarch_Intel_Core7_CannonLake);
545 CASE_RET_STR(kCpumMicroarch_Intel_Core7_IceLake);
546 CASE_RET_STR(kCpumMicroarch_Intel_Core7_TigerLake);
547
548 CASE_RET_STR(kCpumMicroarch_Intel_Atom_Bonnell);
549 CASE_RET_STR(kCpumMicroarch_Intel_Atom_Lincroft);
550 CASE_RET_STR(kCpumMicroarch_Intel_Atom_Saltwell);
551 CASE_RET_STR(kCpumMicroarch_Intel_Atom_Silvermont);
552 CASE_RET_STR(kCpumMicroarch_Intel_Atom_Airmount);
553 CASE_RET_STR(kCpumMicroarch_Intel_Atom_Goldmont);
554 CASE_RET_STR(kCpumMicroarch_Intel_Atom_GoldmontPlus);
555 CASE_RET_STR(kCpumMicroarch_Intel_Atom_Unknown);
556
557 CASE_RET_STR(kCpumMicroarch_Intel_Phi_KnightsFerry);
558 CASE_RET_STR(kCpumMicroarch_Intel_Phi_KnightsCorner);
559 CASE_RET_STR(kCpumMicroarch_Intel_Phi_KnightsLanding);
560 CASE_RET_STR(kCpumMicroarch_Intel_Phi_KnightsHill);
561 CASE_RET_STR(kCpumMicroarch_Intel_Phi_KnightsMill);
562
563 CASE_RET_STR(kCpumMicroarch_Intel_NB_Willamette);
564 CASE_RET_STR(kCpumMicroarch_Intel_NB_Northwood);
565 CASE_RET_STR(kCpumMicroarch_Intel_NB_Prescott);
566 CASE_RET_STR(kCpumMicroarch_Intel_NB_Prescott2M);
567 CASE_RET_STR(kCpumMicroarch_Intel_NB_CedarMill);
568 CASE_RET_STR(kCpumMicroarch_Intel_NB_Gallatin);
569 CASE_RET_STR(kCpumMicroarch_Intel_NB_Unknown);
570
571 CASE_RET_STR(kCpumMicroarch_Intel_Unknown);
572
573 CASE_RET_STR(kCpumMicroarch_AMD_Am286);
574 CASE_RET_STR(kCpumMicroarch_AMD_Am386);
575 CASE_RET_STR(kCpumMicroarch_AMD_Am486);
576 CASE_RET_STR(kCpumMicroarch_AMD_Am486Enh);
577 CASE_RET_STR(kCpumMicroarch_AMD_K5);
578 CASE_RET_STR(kCpumMicroarch_AMD_K6);
579
580 CASE_RET_STR(kCpumMicroarch_AMD_K7_Palomino);
581 CASE_RET_STR(kCpumMicroarch_AMD_K7_Spitfire);
582 CASE_RET_STR(kCpumMicroarch_AMD_K7_Thunderbird);
583 CASE_RET_STR(kCpumMicroarch_AMD_K7_Morgan);
584 CASE_RET_STR(kCpumMicroarch_AMD_K7_Thoroughbred);
585 CASE_RET_STR(kCpumMicroarch_AMD_K7_Barton);
586 CASE_RET_STR(kCpumMicroarch_AMD_K7_Unknown);
587
588 CASE_RET_STR(kCpumMicroarch_AMD_K8_130nm);
589 CASE_RET_STR(kCpumMicroarch_AMD_K8_90nm);
590 CASE_RET_STR(kCpumMicroarch_AMD_K8_90nm_DualCore);
591 CASE_RET_STR(kCpumMicroarch_AMD_K8_90nm_AMDV);
592 CASE_RET_STR(kCpumMicroarch_AMD_K8_65nm);
593
594 CASE_RET_STR(kCpumMicroarch_AMD_K10);
595 CASE_RET_STR(kCpumMicroarch_AMD_K10_Lion);
596 CASE_RET_STR(kCpumMicroarch_AMD_K10_Llano);
597 CASE_RET_STR(kCpumMicroarch_AMD_Bobcat);
598 CASE_RET_STR(kCpumMicroarch_AMD_Jaguar);
599
600 CASE_RET_STR(kCpumMicroarch_AMD_15h_Bulldozer);
601 CASE_RET_STR(kCpumMicroarch_AMD_15h_Piledriver);
602 CASE_RET_STR(kCpumMicroarch_AMD_15h_Steamroller);
603 CASE_RET_STR(kCpumMicroarch_AMD_15h_Excavator);
604 CASE_RET_STR(kCpumMicroarch_AMD_15h_Unknown);
605
606 CASE_RET_STR(kCpumMicroarch_AMD_16h_First);
607
608 CASE_RET_STR(kCpumMicroarch_AMD_Zen_Ryzen);
609
610 CASE_RET_STR(kCpumMicroarch_AMD_Unknown);
611
612 CASE_RET_STR(kCpumMicroarch_Hygon_Dhyana);
613 CASE_RET_STR(kCpumMicroarch_Hygon_Unknown);
614
615 CASE_RET_STR(kCpumMicroarch_Centaur_C6);
616 CASE_RET_STR(kCpumMicroarch_Centaur_C2);
617 CASE_RET_STR(kCpumMicroarch_Centaur_C3);
618 CASE_RET_STR(kCpumMicroarch_VIA_C3_M2);
619 CASE_RET_STR(kCpumMicroarch_VIA_C3_C5A);
620 CASE_RET_STR(kCpumMicroarch_VIA_C3_C5B);
621 CASE_RET_STR(kCpumMicroarch_VIA_C3_C5C);
622 CASE_RET_STR(kCpumMicroarch_VIA_C3_C5N);
623 CASE_RET_STR(kCpumMicroarch_VIA_C3_C5XL);
624 CASE_RET_STR(kCpumMicroarch_VIA_C3_C5P);
625 CASE_RET_STR(kCpumMicroarch_VIA_C7_C5J);
626 CASE_RET_STR(kCpumMicroarch_VIA_Isaiah);
627 CASE_RET_STR(kCpumMicroarch_VIA_Unknown);
628
629 CASE_RET_STR(kCpumMicroarch_Shanghai_Wudaokou);
630 CASE_RET_STR(kCpumMicroarch_Shanghai_Unknown);
631
632 CASE_RET_STR(kCpumMicroarch_Cyrix_5x86);
633 CASE_RET_STR(kCpumMicroarch_Cyrix_M1);
634 CASE_RET_STR(kCpumMicroarch_Cyrix_MediaGX);
635 CASE_RET_STR(kCpumMicroarch_Cyrix_MediaGXm);
636 CASE_RET_STR(kCpumMicroarch_Cyrix_M2);
637 CASE_RET_STR(kCpumMicroarch_Cyrix_Unknown);
638
639 CASE_RET_STR(kCpumMicroarch_NEC_V20);
640 CASE_RET_STR(kCpumMicroarch_NEC_V30);
641
642 CASE_RET_STR(kCpumMicroarch_Unknown);
643
644#undef CASE_RET_STR
645 case kCpumMicroarch_Invalid:
646 case kCpumMicroarch_Intel_End:
647 case kCpumMicroarch_Intel_Core2_End:
648 case kCpumMicroarch_Intel_Core7_End:
649 case kCpumMicroarch_Intel_Atom_End:
650 case kCpumMicroarch_Intel_P6_Core_Atom_End:
651 case kCpumMicroarch_Intel_Phi_End:
652 case kCpumMicroarch_Intel_NB_End:
653 case kCpumMicroarch_AMD_K7_End:
654 case kCpumMicroarch_AMD_K8_End:
655 case kCpumMicroarch_AMD_15h_End:
656 case kCpumMicroarch_AMD_16h_End:
657 case kCpumMicroarch_AMD_Zen_End:
658 case kCpumMicroarch_AMD_End:
659 case kCpumMicroarch_Hygon_End:
660 case kCpumMicroarch_VIA_End:
661 case kCpumMicroarch_Shanghai_End:
662 case kCpumMicroarch_Cyrix_End:
663 case kCpumMicroarch_NEC_End:
664 case kCpumMicroarch_32BitHack:
665 break;
666 /* no default! */
667 }
668
669 return NULL;
670}
671
672
673/**
674 * Determins the host CPU MXCSR mask.
675 *
676 * @returns MXCSR mask.
677 */
678VMMR3DECL(uint32_t) CPUMR3DeterminHostMxCsrMask(void)
679{
680 if ( ASMHasCpuId()
681 && ASMIsValidStdRange(ASMCpuId_EAX(0))
682 && ASMCpuId_EDX(1) & X86_CPUID_FEATURE_EDX_FXSR)
683 {
684 uint8_t volatile abBuf[sizeof(X86FXSTATE) + 64];
685 PX86FXSTATE pState = (PX86FXSTATE)&abBuf[64 - ((uintptr_t)&abBuf[0] & 63)];
686 RT_ZERO(*pState);
687 ASMFxSave(pState);
688 if (pState->MXCSR_MASK == 0)
689 return 0xffbf;
690 return pState->MXCSR_MASK;
691 }
692 return 0;
693}
694
695
696/**
697 * Gets a matching leaf in the CPUID leaf array.
698 *
699 * @returns Pointer to the matching leaf, or NULL if not found.
700 * @param paLeaves The CPUID leaves to search. This is sorted.
701 * @param cLeaves The number of leaves in the array.
702 * @param uLeaf The leaf to locate.
703 * @param uSubLeaf The subleaf to locate. Pass 0 if no sub-leaves.
704 */
705static PCPUMCPUIDLEAF cpumR3CpuIdGetLeaf(PCPUMCPUIDLEAF paLeaves, uint32_t cLeaves, uint32_t uLeaf, uint32_t uSubLeaf)
706{
707 /* Lazy bird does linear lookup here since this is only used for the
708 occational CPUID overrides. */
709 for (uint32_t i = 0; i < cLeaves; i++)
710 if ( paLeaves[i].uLeaf == uLeaf
711 && paLeaves[i].uSubLeaf == (uSubLeaf & paLeaves[i].fSubLeafMask))
712 return &paLeaves[i];
713 return NULL;
714}
715
716
717#ifndef IN_VBOX_CPU_REPORT
718/**
719 * Gets a matching leaf in the CPUID leaf array, converted to a CPUMCPUID.
720 *
721 * @returns true if found, false it not.
722 * @param paLeaves The CPUID leaves to search. This is sorted.
723 * @param cLeaves The number of leaves in the array.
724 * @param uLeaf The leaf to locate.
725 * @param uSubLeaf The subleaf to locate. Pass 0 if no sub-leaves.
726 * @param pLegacy The legacy output leaf.
727 */
728static bool cpumR3CpuIdGetLeafLegacy(PCPUMCPUIDLEAF paLeaves, uint32_t cLeaves, uint32_t uLeaf, uint32_t uSubLeaf,
729 PCPUMCPUID pLegacy)
730{
731 PCPUMCPUIDLEAF pLeaf = cpumR3CpuIdGetLeaf(paLeaves, cLeaves, uLeaf, uSubLeaf);
732 if (pLeaf)
733 {
734 pLegacy->uEax = pLeaf->uEax;
735 pLegacy->uEbx = pLeaf->uEbx;
736 pLegacy->uEcx = pLeaf->uEcx;
737 pLegacy->uEdx = pLeaf->uEdx;
738 return true;
739 }
740 return false;
741}
742#endif /* IN_VBOX_CPU_REPORT */
743
744
745/**
746 * Ensures that the CPUID leaf array can hold one more leaf.
747 *
748 * @returns Pointer to the CPUID leaf array (*ppaLeaves) on success. NULL on
749 * failure.
750 * @param pVM The cross context VM structure. If NULL, use
751 * the process heap, otherwise the VM's hyper heap.
752 * @param ppaLeaves Pointer to the variable holding the array pointer
753 * (input/output).
754 * @param cLeaves The current array size.
755 *
756 * @remarks This function will automatically update the R0 and RC pointers when
757 * using the hyper heap, which means @a ppaLeaves and @a cLeaves must
758 * be the corresponding VM's CPUID arrays (which is asserted).
759 */
760static PCPUMCPUIDLEAF cpumR3CpuIdEnsureSpace(PVM pVM, PCPUMCPUIDLEAF *ppaLeaves, uint32_t cLeaves)
761{
762 /*
763 * If pVM is not specified, we're on the regular heap and can waste a
764 * little space to speed things up.
765 */
766 uint32_t cAllocated;
767 if (!pVM)
768 {
769 cAllocated = RT_ALIGN(cLeaves, 16);
770 if (cLeaves + 1 > cAllocated)
771 {
772 void *pvNew = RTMemRealloc(*ppaLeaves, (cAllocated + 16) * sizeof(**ppaLeaves));
773 if (pvNew)
774 *ppaLeaves = (PCPUMCPUIDLEAF)pvNew;
775 else
776 {
777 RTMemFree(*ppaLeaves);
778 *ppaLeaves = NULL;
779 }
780 }
781 }
782 /*
783 * Otherwise, we're on the hyper heap and are probably just inserting
784 * one or two leaves and should conserve space.
785 */
786 else
787 {
788#ifdef IN_VBOX_CPU_REPORT
789 AssertReleaseFailed();
790#else
791 Assert(ppaLeaves == &pVM->cpum.s.GuestInfo.paCpuIdLeavesR3);
792 Assert(cLeaves == pVM->cpum.s.GuestInfo.cCpuIdLeaves);
793
794 size_t cb = cLeaves * sizeof(**ppaLeaves);
795 size_t cbNew = (cLeaves + 1) * sizeof(**ppaLeaves);
796 int rc = MMR3HyperRealloc(pVM, *ppaLeaves, cb, 32, MM_TAG_CPUM_CPUID, cbNew, (void **)ppaLeaves);
797 if (RT_SUCCESS(rc))
798 pVM->cpum.s.GuestInfo.paCpuIdLeavesR0 = MMHyperR3ToR0(pVM, *ppaLeaves);
799 else
800 {
801 *ppaLeaves = NULL;
802 pVM->cpum.s.GuestInfo.paCpuIdLeavesR0 = NIL_RTR0PTR;
803 LogRel(("CPUM: cpumR3CpuIdEnsureSpace: MMR3HyperRealloc failed. rc=%Rrc\n", rc));
804 }
805#endif
806 }
807 return *ppaLeaves;
808}
809
810
811/**
812 * Append a CPUID leaf or sub-leaf.
813 *
814 * ASSUMES linear insertion order, so we'll won't need to do any searching or
815 * replace anything. Use cpumR3CpuIdInsert() for those cases.
816 *
817 * @returns VINF_SUCCESS or VERR_NO_MEMORY. On error, *ppaLeaves is freed, so
818 * the caller need do no more work.
819 * @param ppaLeaves Pointer to the pointer to the array of sorted
820 * CPUID leaves and sub-leaves.
821 * @param pcLeaves Where we keep the leaf count for *ppaLeaves.
822 * @param uLeaf The leaf we're adding.
823 * @param uSubLeaf The sub-leaf number.
824 * @param fSubLeafMask The sub-leaf mask.
825 * @param uEax The EAX value.
826 * @param uEbx The EBX value.
827 * @param uEcx The ECX value.
828 * @param uEdx The EDX value.
829 * @param fFlags The flags.
830 */
831static int cpumR3CollectCpuIdInfoAddOne(PCPUMCPUIDLEAF *ppaLeaves, uint32_t *pcLeaves,
832 uint32_t uLeaf, uint32_t uSubLeaf, uint32_t fSubLeafMask,
833 uint32_t uEax, uint32_t uEbx, uint32_t uEcx, uint32_t uEdx, uint32_t fFlags)
834{
835 if (!cpumR3CpuIdEnsureSpace(NULL /* pVM */, ppaLeaves, *pcLeaves))
836 return VERR_NO_MEMORY;
837
838 PCPUMCPUIDLEAF pNew = &(*ppaLeaves)[*pcLeaves];
839 Assert( *pcLeaves == 0
840 || pNew[-1].uLeaf < uLeaf
841 || (pNew[-1].uLeaf == uLeaf && pNew[-1].uSubLeaf < uSubLeaf) );
842
843 pNew->uLeaf = uLeaf;
844 pNew->uSubLeaf = uSubLeaf;
845 pNew->fSubLeafMask = fSubLeafMask;
846 pNew->uEax = uEax;
847 pNew->uEbx = uEbx;
848 pNew->uEcx = uEcx;
849 pNew->uEdx = uEdx;
850 pNew->fFlags = fFlags;
851
852 *pcLeaves += 1;
853 return VINF_SUCCESS;
854}
855
856
857/**
858 * Checks that we've updated the CPUID leaves array correctly.
859 *
860 * This is a no-op in non-strict builds.
861 *
862 * @param paLeaves The leaves array.
863 * @param cLeaves The number of leaves.
864 */
865static void cpumR3CpuIdAssertOrder(PCPUMCPUIDLEAF paLeaves, uint32_t cLeaves)
866{
867#ifdef VBOX_STRICT
868 for (uint32_t i = 1; i < cLeaves; i++)
869 if (paLeaves[i].uLeaf != paLeaves[i - 1].uLeaf)
870 AssertMsg(paLeaves[i].uLeaf > paLeaves[i - 1].uLeaf, ("%#x vs %#x\n", paLeaves[i].uLeaf, paLeaves[i - 1].uLeaf));
871 else
872 {
873 AssertMsg(paLeaves[i].uSubLeaf > paLeaves[i - 1].uSubLeaf,
874 ("%#x: %#x vs %#x\n", paLeaves[i].uLeaf, paLeaves[i].uSubLeaf, paLeaves[i - 1].uSubLeaf));
875 AssertMsg(paLeaves[i].fSubLeafMask == paLeaves[i - 1].fSubLeafMask,
876 ("%#x/%#x: %#x vs %#x\n", paLeaves[i].uLeaf, paLeaves[i].uSubLeaf, paLeaves[i].fSubLeafMask, paLeaves[i - 1].fSubLeafMask));
877 AssertMsg(paLeaves[i].fFlags == paLeaves[i - 1].fFlags,
878 ("%#x/%#x: %#x vs %#x\n", paLeaves[i].uLeaf, paLeaves[i].uSubLeaf, paLeaves[i].fFlags, paLeaves[i - 1].fFlags));
879 }
880#else
881 NOREF(paLeaves);
882 NOREF(cLeaves);
883#endif
884}
885
886
887/**
888 * Inserts a CPU ID leaf, replacing any existing ones.
889 *
890 * When inserting a simple leaf where we already got a series of sub-leaves with
891 * the same leaf number (eax), the simple leaf will replace the whole series.
892 *
893 * When pVM is NULL, this ASSUMES that the leaves array is still on the normal
894 * host-context heap and has only been allocated/reallocated by the
895 * cpumR3CpuIdEnsureSpace function.
896 *
897 * @returns VBox status code.
898 * @param pVM The cross context VM structure. If NULL, use
899 * the process heap, otherwise the VM's hyper heap.
900 * @param ppaLeaves Pointer to the pointer to the array of sorted
901 * CPUID leaves and sub-leaves. Must be NULL if using
902 * the hyper heap.
903 * @param pcLeaves Where we keep the leaf count for *ppaLeaves. Must
904 * be NULL if using the hyper heap.
905 * @param pNewLeaf Pointer to the data of the new leaf we're about to
906 * insert.
907 */
908static int cpumR3CpuIdInsert(PVM pVM, PCPUMCPUIDLEAF *ppaLeaves, uint32_t *pcLeaves, PCPUMCPUIDLEAF pNewLeaf)
909{
910 /*
911 * Validate input parameters if we are using the hyper heap and use the VM's CPUID arrays.
912 */
913 if (pVM)
914 {
915 AssertReturn(!ppaLeaves, VERR_INVALID_PARAMETER);
916 AssertReturn(!pcLeaves, VERR_INVALID_PARAMETER);
917
918 ppaLeaves = &pVM->cpum.s.GuestInfo.paCpuIdLeavesR3;
919 pcLeaves = &pVM->cpum.s.GuestInfo.cCpuIdLeaves;
920 }
921
922 PCPUMCPUIDLEAF paLeaves = *ppaLeaves;
923 uint32_t cLeaves = *pcLeaves;
924
925 /*
926 * Validate the new leaf a little.
927 */
928 AssertLogRelMsgReturn(!(pNewLeaf->fFlags & ~CPUMCPUIDLEAF_F_VALID_MASK),
929 ("%#x/%#x: %#x", pNewLeaf->uLeaf, pNewLeaf->uSubLeaf, pNewLeaf->fFlags),
930 VERR_INVALID_FLAGS);
931 AssertLogRelMsgReturn(pNewLeaf->fSubLeafMask != 0 || pNewLeaf->uSubLeaf == 0,
932 ("%#x/%#x: %#x", pNewLeaf->uLeaf, pNewLeaf->uSubLeaf, pNewLeaf->fSubLeafMask),
933 VERR_INVALID_PARAMETER);
934 AssertLogRelMsgReturn(RT_IS_POWER_OF_TWO(pNewLeaf->fSubLeafMask + 1),
935 ("%#x/%#x: %#x", pNewLeaf->uLeaf, pNewLeaf->uSubLeaf, pNewLeaf->fSubLeafMask),
936 VERR_INVALID_PARAMETER);
937 AssertLogRelMsgReturn((pNewLeaf->fSubLeafMask & pNewLeaf->uSubLeaf) == pNewLeaf->uSubLeaf,
938 ("%#x/%#x: %#x", pNewLeaf->uLeaf, pNewLeaf->uSubLeaf, pNewLeaf->fSubLeafMask),
939 VERR_INVALID_PARAMETER);
940
941 /*
942 * Find insertion point. The lazy bird uses the same excuse as in
943 * cpumR3CpuIdGetLeaf(), but optimizes for linear insertion (saved state).
944 */
945 uint32_t i;
946 if ( cLeaves > 0
947 && paLeaves[cLeaves - 1].uLeaf < pNewLeaf->uLeaf)
948 {
949 /* Add at end. */
950 i = cLeaves;
951 }
952 else if ( cLeaves > 0
953 && paLeaves[cLeaves - 1].uLeaf == pNewLeaf->uLeaf)
954 {
955 /* Either replacing the last leaf or dealing with sub-leaves. Spool
956 back to the first sub-leaf to pretend we did the linear search. */
957 i = cLeaves - 1;
958 while ( i > 0
959 && paLeaves[i - 1].uLeaf == pNewLeaf->uLeaf)
960 i--;
961 }
962 else
963 {
964 /* Linear search from the start. */
965 i = 0;
966 while ( i < cLeaves
967 && paLeaves[i].uLeaf < pNewLeaf->uLeaf)
968 i++;
969 }
970 if ( i < cLeaves
971 && paLeaves[i].uLeaf == pNewLeaf->uLeaf)
972 {
973 if (paLeaves[i].fSubLeafMask != pNewLeaf->fSubLeafMask)
974 {
975 /*
976 * The sub-leaf mask differs, replace all existing leaves with the
977 * same leaf number.
978 */
979 uint32_t c = 1;
980 while ( i + c < cLeaves
981 && paLeaves[i + c].uLeaf == pNewLeaf->uLeaf)
982 c++;
983 if (c > 1 && i + c < cLeaves)
984 {
985 memmove(&paLeaves[i + c], &paLeaves[i + 1], (cLeaves - i - c) * sizeof(paLeaves[0]));
986 *pcLeaves = cLeaves -= c - 1;
987 }
988
989 paLeaves[i] = *pNewLeaf;
990 cpumR3CpuIdAssertOrder(*ppaLeaves, *pcLeaves);
991 return VINF_SUCCESS;
992 }
993
994 /* Find sub-leaf insertion point. */
995 while ( i < cLeaves
996 && paLeaves[i].uSubLeaf < pNewLeaf->uSubLeaf
997 && paLeaves[i].uLeaf == pNewLeaf->uLeaf)
998 i++;
999
1000 /*
1001 * If we've got an exactly matching leaf, replace it.
1002 */
1003 if ( i < cLeaves
1004 && paLeaves[i].uLeaf == pNewLeaf->uLeaf
1005 && paLeaves[i].uSubLeaf == pNewLeaf->uSubLeaf)
1006 {
1007 paLeaves[i] = *pNewLeaf;
1008 cpumR3CpuIdAssertOrder(*ppaLeaves, *pcLeaves);
1009 return VINF_SUCCESS;
1010 }
1011 }
1012
1013 /*
1014 * Adding a new leaf at 'i'.
1015 */
1016 AssertLogRelReturn(cLeaves < CPUM_CPUID_MAX_LEAVES, VERR_TOO_MANY_CPUID_LEAVES);
1017 paLeaves = cpumR3CpuIdEnsureSpace(pVM, ppaLeaves, cLeaves);
1018 if (!paLeaves)
1019 return VERR_NO_MEMORY;
1020
1021 if (i < cLeaves)
1022 memmove(&paLeaves[i + 1], &paLeaves[i], (cLeaves - i) * sizeof(paLeaves[0]));
1023 *pcLeaves += 1;
1024 paLeaves[i] = *pNewLeaf;
1025
1026 cpumR3CpuIdAssertOrder(*ppaLeaves, *pcLeaves);
1027 return VINF_SUCCESS;
1028}
1029
1030
1031#ifndef IN_VBOX_CPU_REPORT
1032/**
1033 * Removes a range of CPUID leaves.
1034 *
1035 * This will not reallocate the array.
1036 *
1037 * @param paLeaves The array of sorted CPUID leaves and sub-leaves.
1038 * @param pcLeaves Where we keep the leaf count for @a paLeaves.
1039 * @param uFirst The first leaf.
1040 * @param uLast The last leaf.
1041 */
1042static void cpumR3CpuIdRemoveRange(PCPUMCPUIDLEAF paLeaves, uint32_t *pcLeaves, uint32_t uFirst, uint32_t uLast)
1043{
1044 uint32_t cLeaves = *pcLeaves;
1045
1046 Assert(uFirst <= uLast);
1047
1048 /*
1049 * Find the first one.
1050 */
1051 uint32_t iFirst = 0;
1052 while ( iFirst < cLeaves
1053 && paLeaves[iFirst].uLeaf < uFirst)
1054 iFirst++;
1055
1056 /*
1057 * Find the end (last + 1).
1058 */
1059 uint32_t iEnd = iFirst;
1060 while ( iEnd < cLeaves
1061 && paLeaves[iEnd].uLeaf <= uLast)
1062 iEnd++;
1063
1064 /*
1065 * Adjust the array if anything needs removing.
1066 */
1067 if (iFirst < iEnd)
1068 {
1069 if (iEnd < cLeaves)
1070 memmove(&paLeaves[iFirst], &paLeaves[iEnd], (cLeaves - iEnd) * sizeof(paLeaves[0]));
1071 *pcLeaves = cLeaves -= (iEnd - iFirst);
1072 }
1073
1074 cpumR3CpuIdAssertOrder(paLeaves, *pcLeaves);
1075}
1076#endif /* IN_VBOX_CPU_REPORT */
1077
1078
1079/**
1080 * Checks if ECX make a difference when reading a given CPUID leaf.
1081 *
1082 * @returns @c true if it does, @c false if it doesn't.
1083 * @param uLeaf The leaf we're reading.
1084 * @param pcSubLeaves Number of sub-leaves accessible via ECX.
1085 * @param pfFinalEcxUnchanged Whether ECX is passed thru when going beyond the
1086 * final sub-leaf (for leaf 0xb only).
1087 */
1088static bool cpumR3IsEcxRelevantForCpuIdLeaf(uint32_t uLeaf, uint32_t *pcSubLeaves, bool *pfFinalEcxUnchanged)
1089{
1090 *pfFinalEcxUnchanged = false;
1091
1092 uint32_t auCur[4];
1093 uint32_t auPrev[4];
1094 ASMCpuIdExSlow(uLeaf, 0, 0, 0, &auPrev[0], &auPrev[1], &auPrev[2], &auPrev[3]);
1095
1096 /* Look for sub-leaves. */
1097 uint32_t uSubLeaf = 1;
1098 for (;;)
1099 {
1100 ASMCpuIdExSlow(uLeaf, 0, uSubLeaf, 0, &auCur[0], &auCur[1], &auCur[2], &auCur[3]);
1101 if (memcmp(auCur, auPrev, sizeof(auCur)))
1102 break;
1103
1104 /* Advance / give up. */
1105 uSubLeaf++;
1106 if (uSubLeaf >= 64)
1107 {
1108 *pcSubLeaves = 1;
1109 return false;
1110 }
1111 }
1112
1113 /* Count sub-leaves. */
1114 uint32_t cMinLeaves = uLeaf == 0xd ? 64 : 0;
1115 uint32_t cRepeats = 0;
1116 uSubLeaf = 0;
1117 for (;;)
1118 {
1119 ASMCpuIdExSlow(uLeaf, 0, uSubLeaf, 0, &auCur[0], &auCur[1], &auCur[2], &auCur[3]);
1120
1121 /* Figuring out when to stop isn't entirely straight forward as we need
1122 to cover undocumented behavior up to a point and implementation shortcuts. */
1123
1124 /* 1. Look for more than 4 repeating value sets. */
1125 if ( auCur[0] == auPrev[0]
1126 && auCur[1] == auPrev[1]
1127 && ( auCur[2] == auPrev[2]
1128 || ( auCur[2] == uSubLeaf
1129 && auPrev[2] == uSubLeaf - 1) )
1130 && auCur[3] == auPrev[3])
1131 {
1132 if ( uLeaf != 0xd
1133 || uSubLeaf >= 64
1134 || ( auCur[0] == 0
1135 && auCur[1] == 0
1136 && auCur[2] == 0
1137 && auCur[3] == 0
1138 && auPrev[2] == 0) )
1139 cRepeats++;
1140 if (cRepeats > 4 && uSubLeaf >= cMinLeaves)
1141 break;
1142 }
1143 else
1144 cRepeats = 0;
1145
1146 /* 2. Look for zero values. */
1147 if ( auCur[0] == 0
1148 && auCur[1] == 0
1149 && (auCur[2] == 0 || auCur[2] == uSubLeaf)
1150 && (auCur[3] == 0 || uLeaf == 0xb /* edx is fixed */)
1151 && uSubLeaf >= cMinLeaves)
1152 {
1153 cRepeats = 0;
1154 break;
1155 }
1156
1157 /* 3. Leaf 0xb level type 0 check. */
1158 if ( uLeaf == 0xb
1159 && (auCur[2] & 0xff00) == 0
1160 && (auPrev[2] & 0xff00) == 0)
1161 {
1162 cRepeats = 0;
1163 break;
1164 }
1165
1166 /* 99. Give up. */
1167 if (uSubLeaf >= 128)
1168 {
1169#ifndef IN_VBOX_CPU_REPORT
1170 /* Ok, limit it according to the documentation if possible just to
1171 avoid annoying users with these detection issues. */
1172 uint32_t cDocLimit = UINT32_MAX;
1173 if (uLeaf == 0x4)
1174 cDocLimit = 4;
1175 else if (uLeaf == 0x7)
1176 cDocLimit = 1;
1177 else if (uLeaf == 0xd)
1178 cDocLimit = 63;
1179 else if (uLeaf == 0xf)
1180 cDocLimit = 2;
1181 if (cDocLimit != UINT32_MAX)
1182 {
1183 *pfFinalEcxUnchanged = auCur[2] == uSubLeaf && uLeaf == 0xb;
1184 *pcSubLeaves = cDocLimit + 3;
1185 return true;
1186 }
1187#endif
1188 *pcSubLeaves = UINT32_MAX;
1189 return true;
1190 }
1191
1192 /* Advance. */
1193 uSubLeaf++;
1194 memcpy(auPrev, auCur, sizeof(auCur));
1195 }
1196
1197 /* Standard exit. */
1198 *pfFinalEcxUnchanged = auCur[2] == uSubLeaf && uLeaf == 0xb;
1199 *pcSubLeaves = uSubLeaf + 1 - cRepeats;
1200 if (*pcSubLeaves == 0)
1201 *pcSubLeaves = 1;
1202 return true;
1203}
1204
1205
1206/**
1207 * Gets a CPU ID leaf.
1208 *
1209 * @returns VBox status code.
1210 * @param pVM The cross context VM structure.
1211 * @param pLeaf Where to store the found leaf.
1212 * @param uLeaf The leaf to locate.
1213 * @param uSubLeaf The subleaf to locate. Pass 0 if no sub-leaves.
1214 */
1215VMMR3DECL(int) CPUMR3CpuIdGetLeaf(PVM pVM, PCPUMCPUIDLEAF pLeaf, uint32_t uLeaf, uint32_t uSubLeaf)
1216{
1217 PCPUMCPUIDLEAF pcLeaf = cpumR3CpuIdGetLeaf(pVM->cpum.s.GuestInfo.paCpuIdLeavesR3, pVM->cpum.s.GuestInfo.cCpuIdLeaves,
1218 uLeaf, uSubLeaf);
1219 if (pcLeaf)
1220 {
1221 memcpy(pLeaf, pcLeaf, sizeof(*pLeaf));
1222 return VINF_SUCCESS;
1223 }
1224
1225 return VERR_NOT_FOUND;
1226}
1227
1228
1229/**
1230 * Inserts a CPU ID leaf, replacing any existing ones.
1231 *
1232 * @returns VBox status code.
1233 * @param pVM The cross context VM structure.
1234 * @param pNewLeaf Pointer to the leaf being inserted.
1235 */
1236VMMR3DECL(int) CPUMR3CpuIdInsert(PVM pVM, PCPUMCPUIDLEAF pNewLeaf)
1237{
1238 /*
1239 * Validate parameters.
1240 */
1241 AssertReturn(pVM, VERR_INVALID_PARAMETER);
1242 AssertReturn(pNewLeaf, VERR_INVALID_PARAMETER);
1243
1244 /*
1245 * Disallow replacing CPU ID leaves that this API currently cannot manage.
1246 * These leaves have dependencies on saved-states, see PATMCpuidReplacement().
1247 * If you want to modify these leaves, use CPUMSetGuestCpuIdFeature().
1248 */
1249 if ( pNewLeaf->uLeaf == UINT32_C(0x00000000) /* Standard */
1250 || pNewLeaf->uLeaf == UINT32_C(0x00000001)
1251 || pNewLeaf->uLeaf == UINT32_C(0x80000000) /* Extended */
1252 || pNewLeaf->uLeaf == UINT32_C(0x80000001)
1253 || pNewLeaf->uLeaf == UINT32_C(0xc0000000) /* Centaur */
1254 || pNewLeaf->uLeaf == UINT32_C(0xc0000001) )
1255 {
1256 return VERR_NOT_SUPPORTED;
1257 }
1258
1259 return cpumR3CpuIdInsert(pVM, NULL /* ppaLeaves */, NULL /* pcLeaves */, pNewLeaf);
1260}
1261
1262/**
1263 * Collects CPUID leaves and sub-leaves, returning a sorted array of them.
1264 *
1265 * @returns VBox status code.
1266 * @param ppaLeaves Where to return the array pointer on success.
1267 * Use RTMemFree to release.
1268 * @param pcLeaves Where to return the size of the array on
1269 * success.
1270 */
1271VMMR3DECL(int) CPUMR3CpuIdCollectLeaves(PCPUMCPUIDLEAF *ppaLeaves, uint32_t *pcLeaves)
1272{
1273 *ppaLeaves = NULL;
1274 *pcLeaves = 0;
1275
1276 /*
1277 * Try out various candidates. This must be sorted!
1278 */
1279 static struct { uint32_t uMsr; bool fSpecial; } const s_aCandidates[] =
1280 {
1281 { UINT32_C(0x00000000), false },
1282 { UINT32_C(0x10000000), false },
1283 { UINT32_C(0x20000000), false },
1284 { UINT32_C(0x30000000), false },
1285 { UINT32_C(0x40000000), false },
1286 { UINT32_C(0x50000000), false },
1287 { UINT32_C(0x60000000), false },
1288 { UINT32_C(0x70000000), false },
1289 { UINT32_C(0x80000000), false },
1290 { UINT32_C(0x80860000), false },
1291 { UINT32_C(0x8ffffffe), true },
1292 { UINT32_C(0x8fffffff), true },
1293 { UINT32_C(0x90000000), false },
1294 { UINT32_C(0xa0000000), false },
1295 { UINT32_C(0xb0000000), false },
1296 { UINT32_C(0xc0000000), false },
1297 { UINT32_C(0xd0000000), false },
1298 { UINT32_C(0xe0000000), false },
1299 { UINT32_C(0xf0000000), false },
1300 };
1301
1302 for (uint32_t iOuter = 0; iOuter < RT_ELEMENTS(s_aCandidates); iOuter++)
1303 {
1304 uint32_t uLeaf = s_aCandidates[iOuter].uMsr;
1305 uint32_t uEax, uEbx, uEcx, uEdx;
1306 ASMCpuIdExSlow(uLeaf, 0, 0, 0, &uEax, &uEbx, &uEcx, &uEdx);
1307
1308 /*
1309 * Does EAX look like a typical leaf count value?
1310 */
1311 if ( uEax > uLeaf
1312 && uEax - uLeaf < UINT32_C(0xff)) /* Adjust 0xff limit when exceeded by real HW. */
1313 {
1314 /* Yes, dump them. */
1315 uint32_t cLeaves = uEax - uLeaf + 1;
1316 while (cLeaves-- > 0)
1317 {
1318 ASMCpuIdExSlow(uLeaf, 0, 0, 0, &uEax, &uEbx, &uEcx, &uEdx);
1319
1320 uint32_t fFlags = 0;
1321
1322 /* There are currently three known leaves containing an APIC ID
1323 that needs EMT specific attention */
1324 if (uLeaf == 1)
1325 fFlags |= CPUMCPUIDLEAF_F_CONTAINS_APIC_ID;
1326 else if (uLeaf == 0xb && uEcx != 0)
1327 fFlags |= CPUMCPUIDLEAF_F_CONTAINS_APIC_ID;
1328 else if ( uLeaf == UINT32_C(0x8000001e)
1329 && ( uEax
1330 || uEbx
1331 || uEdx
1332 || ASMIsAmdCpuEx((*ppaLeaves)[0].uEbx, (*ppaLeaves)[0].uEcx, (*ppaLeaves)[0].uEdx)
1333 || ASMIsHygonCpuEx((*ppaLeaves)[0].uEbx, (*ppaLeaves)[0].uEcx, (*ppaLeaves)[0].uEdx)) )
1334 fFlags |= CPUMCPUIDLEAF_F_CONTAINS_APIC_ID;
1335
1336 /* The APIC bit is per-VCpu and needs flagging. */
1337 if (uLeaf == 1)
1338 fFlags |= CPUMCPUIDLEAF_F_CONTAINS_APIC;
1339 else if ( uLeaf == UINT32_C(0x80000001)
1340 && ( (uEdx & X86_CPUID_AMD_FEATURE_EDX_APIC)
1341 || ASMIsAmdCpuEx((*ppaLeaves)[0].uEbx, (*ppaLeaves)[0].uEcx, (*ppaLeaves)[0].uEdx)
1342 || ASMIsHygonCpuEx((*ppaLeaves)[0].uEbx, (*ppaLeaves)[0].uEcx, (*ppaLeaves)[0].uEdx)) )
1343 fFlags |= CPUMCPUIDLEAF_F_CONTAINS_APIC;
1344
1345 /* Check three times here to reduce the chance of CPU migration
1346 resulting in false positives with things like the APIC ID. */
1347 uint32_t cSubLeaves;
1348 bool fFinalEcxUnchanged;
1349 if ( cpumR3IsEcxRelevantForCpuIdLeaf(uLeaf, &cSubLeaves, &fFinalEcxUnchanged)
1350 && cpumR3IsEcxRelevantForCpuIdLeaf(uLeaf, &cSubLeaves, &fFinalEcxUnchanged)
1351 && cpumR3IsEcxRelevantForCpuIdLeaf(uLeaf, &cSubLeaves, &fFinalEcxUnchanged))
1352 {
1353 if (cSubLeaves > (uLeaf == 0xd ? 68U : 16U))
1354 {
1355 /* This shouldn't happen. But in case it does, file all
1356 relevant details in the release log. */
1357 LogRel(("CPUM: VERR_CPUM_TOO_MANY_CPUID_SUBLEAVES! uLeaf=%#x cSubLeaves=%#x\n", uLeaf, cSubLeaves));
1358 LogRel(("------------------ dump of problematic sub-leaves -----------------\n"));
1359 for (uint32_t uSubLeaf = 0; uSubLeaf < 128; uSubLeaf++)
1360 {
1361 uint32_t auTmp[4];
1362 ASMCpuIdExSlow(uLeaf, 0, uSubLeaf, 0, &auTmp[0], &auTmp[1], &auTmp[2], &auTmp[3]);
1363 LogRel(("CPUM: %#010x, %#010x => %#010x %#010x %#010x %#010x\n",
1364 uLeaf, uSubLeaf, auTmp[0], auTmp[1], auTmp[2], auTmp[3]));
1365 }
1366 LogRel(("----------------- dump of what we've found so far -----------------\n"));
1367 for (uint32_t i = 0 ; i < *pcLeaves; i++)
1368 LogRel(("CPUM: %#010x, %#010x/%#010x => %#010x %#010x %#010x %#010x\n",
1369 (*ppaLeaves)[i].uLeaf, (*ppaLeaves)[i].uSubLeaf, (*ppaLeaves)[i].fSubLeafMask,
1370 (*ppaLeaves)[i].uEax, (*ppaLeaves)[i].uEbx, (*ppaLeaves)[i].uEcx, (*ppaLeaves)[i].uEdx));
1371 LogRel(("\nPlease create a defect on virtualbox.org and attach this log file!\n\n"));
1372 return VERR_CPUM_TOO_MANY_CPUID_SUBLEAVES;
1373 }
1374
1375 if (fFinalEcxUnchanged)
1376 fFlags |= CPUMCPUIDLEAF_F_INTEL_TOPOLOGY_SUBLEAVES;
1377
1378 for (uint32_t uSubLeaf = 0; uSubLeaf < cSubLeaves; uSubLeaf++)
1379 {
1380 ASMCpuIdExSlow(uLeaf, 0, uSubLeaf, 0, &uEax, &uEbx, &uEcx, &uEdx);
1381 int rc = cpumR3CollectCpuIdInfoAddOne(ppaLeaves, pcLeaves,
1382 uLeaf, uSubLeaf, UINT32_MAX, uEax, uEbx, uEcx, uEdx, fFlags);
1383 if (RT_FAILURE(rc))
1384 return rc;
1385 }
1386 }
1387 else
1388 {
1389 int rc = cpumR3CollectCpuIdInfoAddOne(ppaLeaves, pcLeaves,
1390 uLeaf, 0, 0, uEax, uEbx, uEcx, uEdx, fFlags);
1391 if (RT_FAILURE(rc))
1392 return rc;
1393 }
1394
1395 /* next */
1396 uLeaf++;
1397 }
1398 }
1399 /*
1400 * Special CPUIDs needs special handling as they don't follow the
1401 * leaf count principle used above.
1402 */
1403 else if (s_aCandidates[iOuter].fSpecial)
1404 {
1405 bool fKeep = false;
1406 if (uLeaf == 0x8ffffffe && uEax == UINT32_C(0x00494544))
1407 fKeep = true;
1408 else if ( uLeaf == 0x8fffffff
1409 && RT_C_IS_PRINT(RT_BYTE1(uEax))
1410 && RT_C_IS_PRINT(RT_BYTE2(uEax))
1411 && RT_C_IS_PRINT(RT_BYTE3(uEax))
1412 && RT_C_IS_PRINT(RT_BYTE4(uEax))
1413 && RT_C_IS_PRINT(RT_BYTE1(uEbx))
1414 && RT_C_IS_PRINT(RT_BYTE2(uEbx))
1415 && RT_C_IS_PRINT(RT_BYTE3(uEbx))
1416 && RT_C_IS_PRINT(RT_BYTE4(uEbx))
1417 && RT_C_IS_PRINT(RT_BYTE1(uEcx))
1418 && RT_C_IS_PRINT(RT_BYTE2(uEcx))
1419 && RT_C_IS_PRINT(RT_BYTE3(uEcx))
1420 && RT_C_IS_PRINT(RT_BYTE4(uEcx))
1421 && RT_C_IS_PRINT(RT_BYTE1(uEdx))
1422 && RT_C_IS_PRINT(RT_BYTE2(uEdx))
1423 && RT_C_IS_PRINT(RT_BYTE3(uEdx))
1424 && RT_C_IS_PRINT(RT_BYTE4(uEdx)) )
1425 fKeep = true;
1426 if (fKeep)
1427 {
1428 int rc = cpumR3CollectCpuIdInfoAddOne(ppaLeaves, pcLeaves,
1429 uLeaf, 0, 0, uEax, uEbx, uEcx, uEdx, 0);
1430 if (RT_FAILURE(rc))
1431 return rc;
1432 }
1433 }
1434 }
1435
1436 cpumR3CpuIdAssertOrder(*ppaLeaves, *pcLeaves);
1437 return VINF_SUCCESS;
1438}
1439
1440
1441/**
1442 * Determines the method the CPU uses to handle unknown CPUID leaves.
1443 *
1444 * @returns VBox status code.
1445 * @param penmUnknownMethod Where to return the method.
1446 * @param pDefUnknown Where to return default unknown values. This
1447 * will be set, even if the resulting method
1448 * doesn't actually needs it.
1449 */
1450VMMR3DECL(int) CPUMR3CpuIdDetectUnknownLeafMethod(PCPUMUNKNOWNCPUID penmUnknownMethod, PCPUMCPUID pDefUnknown)
1451{
1452 uint32_t uLastStd = ASMCpuId_EAX(0);
1453 uint32_t uLastExt = ASMCpuId_EAX(0x80000000);
1454 if (!ASMIsValidExtRange(uLastExt))
1455 uLastExt = 0x80000000;
1456
1457 uint32_t auChecks[] =
1458 {
1459 uLastStd + 1,
1460 uLastStd + 5,
1461 uLastStd + 8,
1462 uLastStd + 32,
1463 uLastStd + 251,
1464 uLastExt + 1,
1465 uLastExt + 8,
1466 uLastExt + 15,
1467 uLastExt + 63,
1468 uLastExt + 255,
1469 0x7fbbffcc,
1470 0x833f7872,
1471 0xefff2353,
1472 0x35779456,
1473 0x1ef6d33e,
1474 };
1475
1476 static const uint32_t s_auValues[] =
1477 {
1478 0xa95d2156,
1479 0x00000001,
1480 0x00000002,
1481 0x00000008,
1482 0x00000000,
1483 0x55773399,
1484 0x93401769,
1485 0x12039587,
1486 };
1487
1488 /*
1489 * Simple method, all zeros.
1490 */
1491 *penmUnknownMethod = CPUMUNKNOWNCPUID_DEFAULTS;
1492 pDefUnknown->uEax = 0;
1493 pDefUnknown->uEbx = 0;
1494 pDefUnknown->uEcx = 0;
1495 pDefUnknown->uEdx = 0;
1496
1497 /*
1498 * Intel has been observed returning the last standard leaf.
1499 */
1500 uint32_t auLast[4];
1501 ASMCpuIdExSlow(uLastStd, 0, 0, 0, &auLast[0], &auLast[1], &auLast[2], &auLast[3]);
1502
1503 uint32_t cChecks = RT_ELEMENTS(auChecks);
1504 while (cChecks > 0)
1505 {
1506 uint32_t auCur[4];
1507 ASMCpuIdExSlow(auChecks[cChecks - 1], 0, 0, 0, &auCur[0], &auCur[1], &auCur[2], &auCur[3]);
1508 if (memcmp(auCur, auLast, sizeof(auCur)))
1509 break;
1510 cChecks--;
1511 }
1512 if (cChecks == 0)
1513 {
1514 /* Now, what happens when the input changes? Esp. ECX. */
1515 uint32_t cTotal = 0;
1516 uint32_t cSame = 0;
1517 uint32_t cLastWithEcx = 0;
1518 uint32_t cNeither = 0;
1519 uint32_t cValues = RT_ELEMENTS(s_auValues);
1520 while (cValues > 0)
1521 {
1522 uint32_t uValue = s_auValues[cValues - 1];
1523 uint32_t auLastWithEcx[4];
1524 ASMCpuIdExSlow(uLastStd, uValue, uValue, uValue,
1525 &auLastWithEcx[0], &auLastWithEcx[1], &auLastWithEcx[2], &auLastWithEcx[3]);
1526
1527 cChecks = RT_ELEMENTS(auChecks);
1528 while (cChecks > 0)
1529 {
1530 uint32_t auCur[4];
1531 ASMCpuIdExSlow(auChecks[cChecks - 1], uValue, uValue, uValue, &auCur[0], &auCur[1], &auCur[2], &auCur[3]);
1532 if (!memcmp(auCur, auLast, sizeof(auCur)))
1533 {
1534 cSame++;
1535 if (!memcmp(auCur, auLastWithEcx, sizeof(auCur)))
1536 cLastWithEcx++;
1537 }
1538 else if (!memcmp(auCur, auLastWithEcx, sizeof(auCur)))
1539 cLastWithEcx++;
1540 else
1541 cNeither++;
1542 cTotal++;
1543 cChecks--;
1544 }
1545 cValues--;
1546 }
1547
1548 Log(("CPUM: cNeither=%d cSame=%d cLastWithEcx=%d cTotal=%d\n", cNeither, cSame, cLastWithEcx, cTotal));
1549 if (cSame == cTotal)
1550 *penmUnknownMethod = CPUMUNKNOWNCPUID_LAST_STD_LEAF;
1551 else if (cLastWithEcx == cTotal)
1552 *penmUnknownMethod = CPUMUNKNOWNCPUID_LAST_STD_LEAF_WITH_ECX;
1553 else
1554 *penmUnknownMethod = CPUMUNKNOWNCPUID_LAST_STD_LEAF;
1555 pDefUnknown->uEax = auLast[0];
1556 pDefUnknown->uEbx = auLast[1];
1557 pDefUnknown->uEcx = auLast[2];
1558 pDefUnknown->uEdx = auLast[3];
1559 return VINF_SUCCESS;
1560 }
1561
1562 /*
1563 * Unchanged register values?
1564 */
1565 cChecks = RT_ELEMENTS(auChecks);
1566 while (cChecks > 0)
1567 {
1568 uint32_t const uLeaf = auChecks[cChecks - 1];
1569 uint32_t cValues = RT_ELEMENTS(s_auValues);
1570 while (cValues > 0)
1571 {
1572 uint32_t uValue = s_auValues[cValues - 1];
1573 uint32_t auCur[4];
1574 ASMCpuIdExSlow(uLeaf, uValue, uValue, uValue, &auCur[0], &auCur[1], &auCur[2], &auCur[3]);
1575 if ( auCur[0] != uLeaf
1576 || auCur[1] != uValue
1577 || auCur[2] != uValue
1578 || auCur[3] != uValue)
1579 break;
1580 cValues--;
1581 }
1582 if (cValues != 0)
1583 break;
1584 cChecks--;
1585 }
1586 if (cChecks == 0)
1587 {
1588 *penmUnknownMethod = CPUMUNKNOWNCPUID_PASSTHRU;
1589 return VINF_SUCCESS;
1590 }
1591
1592 /*
1593 * Just go with the simple method.
1594 */
1595 return VINF_SUCCESS;
1596}
1597
1598
1599/**
1600 * Translates a unknow CPUID leaf method into the constant name (sans prefix).
1601 *
1602 * @returns Read only name string.
1603 * @param enmUnknownMethod The method to translate.
1604 */
1605VMMR3DECL(const char *) CPUMR3CpuIdUnknownLeafMethodName(CPUMUNKNOWNCPUID enmUnknownMethod)
1606{
1607 switch (enmUnknownMethod)
1608 {
1609 case CPUMUNKNOWNCPUID_DEFAULTS: return "DEFAULTS";
1610 case CPUMUNKNOWNCPUID_LAST_STD_LEAF: return "LAST_STD_LEAF";
1611 case CPUMUNKNOWNCPUID_LAST_STD_LEAF_WITH_ECX: return "LAST_STD_LEAF_WITH_ECX";
1612 case CPUMUNKNOWNCPUID_PASSTHRU: return "PASSTHRU";
1613
1614 case CPUMUNKNOWNCPUID_INVALID:
1615 case CPUMUNKNOWNCPUID_END:
1616 case CPUMUNKNOWNCPUID_32BIT_HACK:
1617 break;
1618 }
1619 return "Invalid-unknown-CPUID-method";
1620}
1621
1622
1623/**
1624 * Detect the CPU vendor give n the
1625 *
1626 * @returns The vendor.
1627 * @param uEAX EAX from CPUID(0).
1628 * @param uEBX EBX from CPUID(0).
1629 * @param uECX ECX from CPUID(0).
1630 * @param uEDX EDX from CPUID(0).
1631 */
1632VMMR3DECL(CPUMCPUVENDOR) CPUMR3CpuIdDetectVendorEx(uint32_t uEAX, uint32_t uEBX, uint32_t uECX, uint32_t uEDX)
1633{
1634 if (ASMIsValidStdRange(uEAX))
1635 {
1636 if (ASMIsAmdCpuEx(uEBX, uECX, uEDX))
1637 return CPUMCPUVENDOR_AMD;
1638
1639 if (ASMIsIntelCpuEx(uEBX, uECX, uEDX))
1640 return CPUMCPUVENDOR_INTEL;
1641
1642 if (ASMIsViaCentaurCpuEx(uEBX, uECX, uEDX))
1643 return CPUMCPUVENDOR_VIA;
1644
1645 if (ASMIsShanghaiCpuEx(uEBX, uECX, uEDX))
1646 return CPUMCPUVENDOR_SHANGHAI;
1647
1648 if ( uEBX == UINT32_C(0x69727943) /* CyrixInstead */
1649 && uECX == UINT32_C(0x64616574)
1650 && uEDX == UINT32_C(0x736E4978))
1651 return CPUMCPUVENDOR_CYRIX;
1652
1653 if (ASMIsHygonCpuEx(uEBX, uECX, uEDX))
1654 return CPUMCPUVENDOR_HYGON;
1655
1656 /* "Geode by NSC", example: family 5, model 9. */
1657
1658 /** @todo detect the other buggers... */
1659 }
1660
1661 return CPUMCPUVENDOR_UNKNOWN;
1662}
1663
1664
1665/**
1666 * Translates a CPU vendor enum value into the corresponding string constant.
1667 *
1668 * The named can be prefixed with 'CPUMCPUVENDOR_' to construct a valid enum
1669 * value name. This can be useful when generating code.
1670 *
1671 * @returns Read only name string.
1672 * @param enmVendor The CPU vendor value.
1673 */
1674VMMR3DECL(const char *) CPUMR3CpuVendorName(CPUMCPUVENDOR enmVendor)
1675{
1676 switch (enmVendor)
1677 {
1678 case CPUMCPUVENDOR_INTEL: return "INTEL";
1679 case CPUMCPUVENDOR_AMD: return "AMD";
1680 case CPUMCPUVENDOR_VIA: return "VIA";
1681 case CPUMCPUVENDOR_CYRIX: return "CYRIX";
1682 case CPUMCPUVENDOR_SHANGHAI: return "SHANGHAI";
1683 case CPUMCPUVENDOR_HYGON: return "HYGON";
1684 case CPUMCPUVENDOR_UNKNOWN: return "UNKNOWN";
1685
1686 case CPUMCPUVENDOR_INVALID:
1687 case CPUMCPUVENDOR_32BIT_HACK:
1688 break;
1689 }
1690 return "Invalid-cpu-vendor";
1691}
1692
1693
1694static PCCPUMCPUIDLEAF cpumR3CpuIdFindLeaf(PCCPUMCPUIDLEAF paLeaves, uint32_t cLeaves, uint32_t uLeaf)
1695{
1696 /* Could do binary search, doing linear now because I'm lazy. */
1697 PCCPUMCPUIDLEAF pLeaf = paLeaves;
1698 while (cLeaves-- > 0)
1699 {
1700 if (pLeaf->uLeaf == uLeaf)
1701 return pLeaf;
1702 pLeaf++;
1703 }
1704 return NULL;
1705}
1706
1707
1708static PCCPUMCPUIDLEAF cpumR3CpuIdFindLeafEx(PCCPUMCPUIDLEAF paLeaves, uint32_t cLeaves, uint32_t uLeaf, uint32_t uSubLeaf)
1709{
1710 PCCPUMCPUIDLEAF pLeaf = cpumR3CpuIdFindLeaf(paLeaves, cLeaves, uLeaf);
1711 if ( !pLeaf
1712 || pLeaf->uSubLeaf != (uSubLeaf & pLeaf->fSubLeafMask))
1713 return pLeaf;
1714
1715 /* Linear sub-leaf search. Lazy as usual. */
1716 cLeaves -= pLeaf - paLeaves;
1717 while ( cLeaves-- > 0
1718 && pLeaf->uLeaf == uLeaf)
1719 {
1720 if (pLeaf->uSubLeaf == (uSubLeaf & pLeaf->fSubLeafMask))
1721 return pLeaf;
1722 pLeaf++;
1723 }
1724
1725 return NULL;
1726}
1727
1728
1729static void cpumR3ExplodeVmxFeatures(PCVMXMSRS pVmxMsrs, PCPUMFEATURES pFeatures)
1730{
1731 Assert(pVmxMsrs);
1732 Assert(pFeatures);
1733 Assert(pFeatures->fVmx);
1734
1735 /* Basic information. */
1736 {
1737 uint64_t const u64Basic = pVmxMsrs->u64Basic;
1738 pFeatures->fVmxInsOutInfo = RT_BF_GET(u64Basic, VMX_BF_BASIC_VMCS_INS_OUTS);
1739 }
1740
1741 /* Pin-based VM-execution controls. */
1742 {
1743 uint32_t const fPinCtls = pVmxMsrs->PinCtls.n.allowed1;
1744 pFeatures->fVmxExtIntExit = RT_BOOL(fPinCtls & VMX_PIN_CTLS_EXT_INT_EXIT);
1745 pFeatures->fVmxNmiExit = RT_BOOL(fPinCtls & VMX_PIN_CTLS_NMI_EXIT);
1746 pFeatures->fVmxVirtNmi = RT_BOOL(fPinCtls & VMX_PIN_CTLS_VIRT_NMI);
1747 pFeatures->fVmxPreemptTimer = RT_BOOL(fPinCtls & VMX_PIN_CTLS_PREEMPT_TIMER);
1748 pFeatures->fVmxPostedInt = RT_BOOL(fPinCtls & VMX_PIN_CTLS_POSTED_INT);
1749 }
1750
1751 /* Processor-based VM-execution controls. */
1752 {
1753 uint32_t const fProcCtls = pVmxMsrs->ProcCtls.n.allowed1;
1754 pFeatures->fVmxIntWindowExit = RT_BOOL(fProcCtls & VMX_PROC_CTLS_INT_WINDOW_EXIT);
1755 pFeatures->fVmxTscOffsetting = RT_BOOL(fProcCtls & VMX_PROC_CTLS_USE_TSC_OFFSETTING);
1756 pFeatures->fVmxHltExit = RT_BOOL(fProcCtls & VMX_PROC_CTLS_HLT_EXIT);
1757 pFeatures->fVmxInvlpgExit = RT_BOOL(fProcCtls & VMX_PROC_CTLS_INVLPG_EXIT);
1758 pFeatures->fVmxMwaitExit = RT_BOOL(fProcCtls & VMX_PROC_CTLS_MWAIT_EXIT);
1759 pFeatures->fVmxRdpmcExit = RT_BOOL(fProcCtls & VMX_PROC_CTLS_RDPMC_EXIT);
1760 pFeatures->fVmxRdtscExit = RT_BOOL(fProcCtls & VMX_PROC_CTLS_RDTSC_EXIT);
1761 pFeatures->fVmxCr3LoadExit = RT_BOOL(fProcCtls & VMX_PROC_CTLS_CR3_LOAD_EXIT);
1762 pFeatures->fVmxCr3StoreExit = RT_BOOL(fProcCtls & VMX_PROC_CTLS_CR3_STORE_EXIT);
1763 pFeatures->fVmxCr8LoadExit = RT_BOOL(fProcCtls & VMX_PROC_CTLS_CR8_LOAD_EXIT);
1764 pFeatures->fVmxCr8StoreExit = RT_BOOL(fProcCtls & VMX_PROC_CTLS_CR8_STORE_EXIT);
1765 pFeatures->fVmxUseTprShadow = RT_BOOL(fProcCtls & VMX_PROC_CTLS_USE_TPR_SHADOW);
1766 pFeatures->fVmxNmiWindowExit = RT_BOOL(fProcCtls & VMX_PROC_CTLS_NMI_WINDOW_EXIT);
1767 pFeatures->fVmxMovDRxExit = RT_BOOL(fProcCtls & VMX_PROC_CTLS_MOV_DR_EXIT);
1768 pFeatures->fVmxUncondIoExit = RT_BOOL(fProcCtls & VMX_PROC_CTLS_UNCOND_IO_EXIT);
1769 pFeatures->fVmxUseIoBitmaps = RT_BOOL(fProcCtls & VMX_PROC_CTLS_USE_IO_BITMAPS);
1770 pFeatures->fVmxMonitorTrapFlag = RT_BOOL(fProcCtls & VMX_PROC_CTLS_MONITOR_TRAP_FLAG);
1771 pFeatures->fVmxUseMsrBitmaps = RT_BOOL(fProcCtls & VMX_PROC_CTLS_USE_MSR_BITMAPS);
1772 pFeatures->fVmxMonitorExit = RT_BOOL(fProcCtls & VMX_PROC_CTLS_MONITOR_EXIT);
1773 pFeatures->fVmxPauseExit = RT_BOOL(fProcCtls & VMX_PROC_CTLS_PAUSE_EXIT);
1774 pFeatures->fVmxSecondaryExecCtls = RT_BOOL(fProcCtls & VMX_PROC_CTLS_USE_SECONDARY_CTLS);
1775 }
1776
1777 /* Secondary processor-based VM-execution controls. */
1778 {
1779 uint32_t const fProcCtls2 = pFeatures->fVmxSecondaryExecCtls ? pVmxMsrs->ProcCtls2.n.allowed1 : 0;
1780 pFeatures->fVmxVirtApicAccess = RT_BOOL(fProcCtls2 & VMX_PROC_CTLS2_VIRT_APIC_ACCESS);
1781 pFeatures->fVmxEpt = RT_BOOL(fProcCtls2 & VMX_PROC_CTLS2_EPT);
1782 pFeatures->fVmxDescTableExit = RT_BOOL(fProcCtls2 & VMX_PROC_CTLS2_DESC_TABLE_EXIT);
1783 pFeatures->fVmxRdtscp = RT_BOOL(fProcCtls2 & VMX_PROC_CTLS2_RDTSCP);
1784 pFeatures->fVmxVirtX2ApicMode = RT_BOOL(fProcCtls2 & VMX_PROC_CTLS2_VIRT_X2APIC_MODE);
1785 pFeatures->fVmxVpid = RT_BOOL(fProcCtls2 & VMX_PROC_CTLS2_VPID);
1786 pFeatures->fVmxWbinvdExit = RT_BOOL(fProcCtls2 & VMX_PROC_CTLS2_WBINVD_EXIT);
1787 pFeatures->fVmxUnrestrictedGuest = RT_BOOL(fProcCtls2 & VMX_PROC_CTLS2_UNRESTRICTED_GUEST);
1788 pFeatures->fVmxApicRegVirt = RT_BOOL(fProcCtls2 & VMX_PROC_CTLS2_APIC_REG_VIRT);
1789 pFeatures->fVmxVirtIntDelivery = RT_BOOL(fProcCtls2 & VMX_PROC_CTLS2_VIRT_INT_DELIVERY);
1790 pFeatures->fVmxPauseLoopExit = RT_BOOL(fProcCtls2 & VMX_PROC_CTLS2_PAUSE_LOOP_EXIT);
1791 pFeatures->fVmxRdrandExit = RT_BOOL(fProcCtls2 & VMX_PROC_CTLS2_RDRAND_EXIT);
1792 pFeatures->fVmxInvpcid = RT_BOOL(fProcCtls2 & VMX_PROC_CTLS2_INVPCID);
1793 pFeatures->fVmxVmFunc = RT_BOOL(fProcCtls2 & VMX_PROC_CTLS2_VMFUNC);
1794 pFeatures->fVmxVmcsShadowing = RT_BOOL(fProcCtls2 & VMX_PROC_CTLS2_VMCS_SHADOWING);
1795 pFeatures->fVmxRdseedExit = RT_BOOL(fProcCtls2 & VMX_PROC_CTLS2_RDSEED_EXIT);
1796 pFeatures->fVmxPml = RT_BOOL(fProcCtls2 & VMX_PROC_CTLS2_PML);
1797 pFeatures->fVmxEptXcptVe = RT_BOOL(fProcCtls2 & VMX_PROC_CTLS2_EPT_VE);
1798 pFeatures->fVmxXsavesXrstors = RT_BOOL(fProcCtls2 & VMX_PROC_CTLS2_XSAVES_XRSTORS);
1799 pFeatures->fVmxUseTscScaling = RT_BOOL(fProcCtls2 & VMX_PROC_CTLS2_TSC_SCALING);
1800 }
1801
1802 /* VM-exit controls. */
1803 {
1804 uint32_t const fExitCtls = pVmxMsrs->ExitCtls.n.allowed1;
1805 pFeatures->fVmxExitSaveDebugCtls = RT_BOOL(fExitCtls & VMX_EXIT_CTLS_SAVE_DEBUG);
1806 pFeatures->fVmxHostAddrSpaceSize = RT_BOOL(fExitCtls & VMX_EXIT_CTLS_HOST_ADDR_SPACE_SIZE);
1807 pFeatures->fVmxExitAckExtInt = RT_BOOL(fExitCtls & VMX_EXIT_CTLS_ACK_EXT_INT);
1808 pFeatures->fVmxExitSavePatMsr = RT_BOOL(fExitCtls & VMX_EXIT_CTLS_SAVE_PAT_MSR);
1809 pFeatures->fVmxExitLoadPatMsr = RT_BOOL(fExitCtls & VMX_EXIT_CTLS_LOAD_PAT_MSR);
1810 pFeatures->fVmxExitSaveEferMsr = RT_BOOL(fExitCtls & VMX_EXIT_CTLS_SAVE_EFER_MSR);
1811 pFeatures->fVmxExitLoadEferMsr = RT_BOOL(fExitCtls & VMX_EXIT_CTLS_LOAD_EFER_MSR);
1812 pFeatures->fVmxSavePreemptTimer = RT_BOOL(fExitCtls & VMX_EXIT_CTLS_SAVE_PREEMPT_TIMER);
1813 }
1814
1815 /* VM-entry controls. */
1816 {
1817 uint32_t const fEntryCtls = pVmxMsrs->EntryCtls.n.allowed1;
1818 pFeatures->fVmxEntryLoadDebugCtls = RT_BOOL(fEntryCtls & VMX_ENTRY_CTLS_LOAD_DEBUG);
1819 pFeatures->fVmxIa32eModeGuest = RT_BOOL(fEntryCtls & VMX_ENTRY_CTLS_IA32E_MODE_GUEST);
1820 pFeatures->fVmxEntryLoadEferMsr = RT_BOOL(fEntryCtls & VMX_ENTRY_CTLS_LOAD_EFER_MSR);
1821 pFeatures->fVmxEntryLoadPatMsr = RT_BOOL(fEntryCtls & VMX_ENTRY_CTLS_LOAD_PAT_MSR);
1822 }
1823
1824 /* Miscellaneous data. */
1825 {
1826 uint32_t const fMiscData = pVmxMsrs->u64Misc;
1827 pFeatures->fVmxExitSaveEferLma = RT_BOOL(fMiscData & VMX_MISC_EXIT_SAVE_EFER_LMA);
1828 pFeatures->fVmxIntelPt = RT_BOOL(fMiscData & VMX_MISC_INTEL_PT);
1829 pFeatures->fVmxVmwriteAll = RT_BOOL(fMiscData & VMX_MISC_VMWRITE_ALL);
1830 pFeatures->fVmxEntryInjectSoftInt = RT_BOOL(fMiscData & VMX_MISC_ENTRY_INJECT_SOFT_INT);
1831 }
1832}
1833
1834
1835int cpumR3CpuIdExplodeFeatures(PCCPUMCPUIDLEAF paLeaves, uint32_t cLeaves, PCCPUMMSRS pMsrs, PCPUMFEATURES pFeatures)
1836{
1837 Assert(pMsrs);
1838 RT_ZERO(*pFeatures);
1839 if (cLeaves >= 2)
1840 {
1841 AssertLogRelReturn(paLeaves[0].uLeaf == 0, VERR_CPUM_IPE_1);
1842 AssertLogRelReturn(paLeaves[1].uLeaf == 1, VERR_CPUM_IPE_1);
1843 PCCPUMCPUIDLEAF const pStd0Leaf = cpumR3CpuIdFindLeafEx(paLeaves, cLeaves, 0, 0);
1844 AssertLogRelReturn(pStd0Leaf, VERR_CPUM_IPE_1);
1845 PCCPUMCPUIDLEAF const pStd1Leaf = cpumR3CpuIdFindLeafEx(paLeaves, cLeaves, 1, 0);
1846 AssertLogRelReturn(pStd1Leaf, VERR_CPUM_IPE_1);
1847
1848 pFeatures->enmCpuVendor = CPUMR3CpuIdDetectVendorEx(pStd0Leaf->uEax,
1849 pStd0Leaf->uEbx,
1850 pStd0Leaf->uEcx,
1851 pStd0Leaf->uEdx);
1852 pFeatures->uFamily = ASMGetCpuFamily(pStd1Leaf->uEax);
1853 pFeatures->uModel = ASMGetCpuModel(pStd1Leaf->uEax, pFeatures->enmCpuVendor == CPUMCPUVENDOR_INTEL);
1854 pFeatures->uStepping = ASMGetCpuStepping(pStd1Leaf->uEax);
1855 pFeatures->enmMicroarch = CPUMR3CpuIdDetermineMicroarchEx((CPUMCPUVENDOR)pFeatures->enmCpuVendor,
1856 pFeatures->uFamily,
1857 pFeatures->uModel,
1858 pFeatures->uStepping);
1859
1860 PCCPUMCPUIDLEAF const pExtLeaf8 = cpumR3CpuIdFindLeaf(paLeaves, cLeaves, 0x80000008);
1861 if (pExtLeaf8)
1862 {
1863 pFeatures->cMaxPhysAddrWidth = pExtLeaf8->uEax & 0xff;
1864 pFeatures->cMaxLinearAddrWidth = (pExtLeaf8->uEax >> 8) & 0xff;
1865 }
1866 else if (pStd1Leaf->uEdx & X86_CPUID_FEATURE_EDX_PSE36)
1867 {
1868 pFeatures->cMaxPhysAddrWidth = 36;
1869 pFeatures->cMaxLinearAddrWidth = 36;
1870 }
1871 else
1872 {
1873 pFeatures->cMaxPhysAddrWidth = 32;
1874 pFeatures->cMaxLinearAddrWidth = 32;
1875 }
1876
1877 /* Standard features. */
1878 pFeatures->fMsr = RT_BOOL(pStd1Leaf->uEdx & X86_CPUID_FEATURE_EDX_MSR);
1879 pFeatures->fApic = RT_BOOL(pStd1Leaf->uEdx & X86_CPUID_FEATURE_EDX_APIC);
1880 pFeatures->fX2Apic = RT_BOOL(pStd1Leaf->uEcx & X86_CPUID_FEATURE_ECX_X2APIC);
1881 pFeatures->fPse = RT_BOOL(pStd1Leaf->uEdx & X86_CPUID_FEATURE_EDX_PSE);
1882 pFeatures->fPse36 = RT_BOOL(pStd1Leaf->uEdx & X86_CPUID_FEATURE_EDX_PSE36);
1883 pFeatures->fPae = RT_BOOL(pStd1Leaf->uEdx & X86_CPUID_FEATURE_EDX_PAE);
1884 pFeatures->fPat = RT_BOOL(pStd1Leaf->uEdx & X86_CPUID_FEATURE_EDX_PAT);
1885 pFeatures->fFxSaveRstor = RT_BOOL(pStd1Leaf->uEdx & X86_CPUID_FEATURE_EDX_FXSR);
1886 pFeatures->fXSaveRstor = RT_BOOL(pStd1Leaf->uEcx & X86_CPUID_FEATURE_ECX_XSAVE);
1887 pFeatures->fOpSysXSaveRstor = RT_BOOL(pStd1Leaf->uEcx & X86_CPUID_FEATURE_ECX_OSXSAVE);
1888 pFeatures->fMmx = RT_BOOL(pStd1Leaf->uEdx & X86_CPUID_FEATURE_EDX_MMX);
1889 pFeatures->fSse = RT_BOOL(pStd1Leaf->uEdx & X86_CPUID_FEATURE_EDX_SSE);
1890 pFeatures->fSse2 = RT_BOOL(pStd1Leaf->uEdx & X86_CPUID_FEATURE_EDX_SSE2);
1891 pFeatures->fSse3 = RT_BOOL(pStd1Leaf->uEcx & X86_CPUID_FEATURE_ECX_SSE3);
1892 pFeatures->fSsse3 = RT_BOOL(pStd1Leaf->uEcx & X86_CPUID_FEATURE_ECX_SSSE3);
1893 pFeatures->fSse41 = RT_BOOL(pStd1Leaf->uEcx & X86_CPUID_FEATURE_ECX_SSE4_1);
1894 pFeatures->fSse42 = RT_BOOL(pStd1Leaf->uEcx & X86_CPUID_FEATURE_ECX_SSE4_2);
1895 pFeatures->fAvx = RT_BOOL(pStd1Leaf->uEcx & X86_CPUID_FEATURE_ECX_AVX);
1896 pFeatures->fTsc = RT_BOOL(pStd1Leaf->uEdx & X86_CPUID_FEATURE_EDX_TSC);
1897 pFeatures->fSysEnter = RT_BOOL(pStd1Leaf->uEdx & X86_CPUID_FEATURE_EDX_SEP);
1898 pFeatures->fHypervisorPresent = RT_BOOL(pStd1Leaf->uEcx & X86_CPUID_FEATURE_ECX_HVP);
1899 pFeatures->fMonitorMWait = RT_BOOL(pStd1Leaf->uEcx & X86_CPUID_FEATURE_ECX_MONITOR);
1900 pFeatures->fMovCmpXchg16b = RT_BOOL(pStd1Leaf->uEcx & X86_CPUID_FEATURE_ECX_CX16);
1901 pFeatures->fClFlush = RT_BOOL(pStd1Leaf->uEdx & X86_CPUID_FEATURE_EDX_CLFSH);
1902 pFeatures->fPcid = RT_BOOL(pStd1Leaf->uEcx & X86_CPUID_FEATURE_ECX_PCID);
1903 pFeatures->fVmx = RT_BOOL(pStd1Leaf->uEcx & X86_CPUID_FEATURE_ECX_VMX);
1904 if (pFeatures->fVmx)
1905 cpumR3ExplodeVmxFeatures(&pMsrs->hwvirt.vmx, pFeatures);
1906
1907 /* Structured extended features. */
1908 PCCPUMCPUIDLEAF const pSxfLeaf0 = cpumR3CpuIdFindLeafEx(paLeaves, cLeaves, 7, 0);
1909 if (pSxfLeaf0)
1910 {
1911 pFeatures->fFsGsBase = RT_BOOL(pSxfLeaf0->uEbx & X86_CPUID_STEXT_FEATURE_EBX_FSGSBASE);
1912 pFeatures->fAvx2 = RT_BOOL(pSxfLeaf0->uEbx & X86_CPUID_STEXT_FEATURE_EBX_AVX2);
1913 pFeatures->fAvx512Foundation = RT_BOOL(pSxfLeaf0->uEbx & X86_CPUID_STEXT_FEATURE_EBX_AVX512F);
1914 pFeatures->fClFlushOpt = RT_BOOL(pSxfLeaf0->uEbx & X86_CPUID_STEXT_FEATURE_EBX_CLFLUSHOPT);
1915 pFeatures->fInvpcid = RT_BOOL(pSxfLeaf0->uEbx & X86_CPUID_STEXT_FEATURE_EBX_INVPCID);
1916
1917 pFeatures->fIbpb = RT_BOOL(pSxfLeaf0->uEdx & X86_CPUID_STEXT_FEATURE_EDX_IBRS_IBPB);
1918 pFeatures->fIbrs = pFeatures->fIbpb;
1919 pFeatures->fStibp = RT_BOOL(pSxfLeaf0->uEdx & X86_CPUID_STEXT_FEATURE_EDX_STIBP);
1920 pFeatures->fFlushCmd = RT_BOOL(pSxfLeaf0->uEdx & X86_CPUID_STEXT_FEATURE_EDX_FLUSH_CMD);
1921 pFeatures->fArchCap = RT_BOOL(pSxfLeaf0->uEdx & X86_CPUID_STEXT_FEATURE_EDX_ARCHCAP);
1922 pFeatures->fMdsClear = RT_BOOL(pSxfLeaf0->uEdx & X86_CPUID_STEXT_FEATURE_EDX_MD_CLEAR);
1923 }
1924
1925 /* MWAIT/MONITOR leaf. */
1926 PCCPUMCPUIDLEAF const pMWaitLeaf = cpumR3CpuIdFindLeaf(paLeaves, cLeaves, 5);
1927 if (pMWaitLeaf)
1928 pFeatures->fMWaitExtensions = (pMWaitLeaf->uEcx & (X86_CPUID_MWAIT_ECX_EXT | X86_CPUID_MWAIT_ECX_BREAKIRQIF0))
1929 == (X86_CPUID_MWAIT_ECX_EXT | X86_CPUID_MWAIT_ECX_BREAKIRQIF0);
1930
1931 /* Extended features. */
1932 PCCPUMCPUIDLEAF const pExtLeaf = cpumR3CpuIdFindLeaf(paLeaves, cLeaves, 0x80000001);
1933 if (pExtLeaf)
1934 {
1935 pFeatures->fLongMode = RT_BOOL(pExtLeaf->uEdx & X86_CPUID_EXT_FEATURE_EDX_LONG_MODE);
1936 pFeatures->fSysCall = RT_BOOL(pExtLeaf->uEdx & X86_CPUID_EXT_FEATURE_EDX_SYSCALL);
1937 pFeatures->fNoExecute = RT_BOOL(pExtLeaf->uEdx & X86_CPUID_EXT_FEATURE_EDX_NX);
1938 pFeatures->fLahfSahf = RT_BOOL(pExtLeaf->uEcx & X86_CPUID_EXT_FEATURE_ECX_LAHF_SAHF);
1939 pFeatures->fRdTscP = RT_BOOL(pExtLeaf->uEdx & X86_CPUID_EXT_FEATURE_EDX_RDTSCP);
1940 pFeatures->fMovCr8In32Bit = RT_BOOL(pExtLeaf->uEcx & X86_CPUID_AMD_FEATURE_ECX_CMPL);
1941 pFeatures->f3DNow = RT_BOOL(pExtLeaf->uEdx & X86_CPUID_AMD_FEATURE_EDX_3DNOW);
1942 pFeatures->f3DNowPrefetch = (pExtLeaf->uEcx & X86_CPUID_AMD_FEATURE_ECX_3DNOWPRF)
1943 || (pExtLeaf->uEdx & ( X86_CPUID_EXT_FEATURE_EDX_LONG_MODE
1944 | X86_CPUID_AMD_FEATURE_EDX_3DNOW));
1945 }
1946
1947 /* VMX (VMXON, VMCS region and related data structures) physical address width (depends on long-mode). */
1948 pFeatures->cVmxMaxPhysAddrWidth = pFeatures->fLongMode ? pFeatures->cMaxPhysAddrWidth : 32;
1949
1950 if ( pExtLeaf
1951 && ( pFeatures->enmCpuVendor == CPUMCPUVENDOR_AMD
1952 || pFeatures->enmCpuVendor == CPUMCPUVENDOR_HYGON))
1953 {
1954 /* AMD features. */
1955 pFeatures->fMsr |= RT_BOOL(pExtLeaf->uEdx & X86_CPUID_AMD_FEATURE_EDX_MSR);
1956 pFeatures->fApic |= RT_BOOL(pExtLeaf->uEdx & X86_CPUID_AMD_FEATURE_EDX_APIC);
1957 pFeatures->fPse |= RT_BOOL(pExtLeaf->uEdx & X86_CPUID_AMD_FEATURE_EDX_PSE);
1958 pFeatures->fPse36 |= RT_BOOL(pExtLeaf->uEdx & X86_CPUID_AMD_FEATURE_EDX_PSE36);
1959 pFeatures->fPae |= RT_BOOL(pExtLeaf->uEdx & X86_CPUID_AMD_FEATURE_EDX_PAE);
1960 pFeatures->fPat |= RT_BOOL(pExtLeaf->uEdx & X86_CPUID_AMD_FEATURE_EDX_PAT);
1961 pFeatures->fFxSaveRstor |= RT_BOOL(pExtLeaf->uEdx & X86_CPUID_AMD_FEATURE_EDX_FXSR);
1962 pFeatures->fMmx |= RT_BOOL(pExtLeaf->uEdx & X86_CPUID_AMD_FEATURE_EDX_MMX);
1963 pFeatures->fTsc |= RT_BOOL(pExtLeaf->uEdx & X86_CPUID_AMD_FEATURE_EDX_TSC);
1964 pFeatures->fIbpb |= pExtLeaf8 && (pExtLeaf8->uEbx & X86_CPUID_AMD_EFEID_EBX_IBPB);
1965 pFeatures->fAmdMmxExts = RT_BOOL(pExtLeaf->uEdx & X86_CPUID_AMD_FEATURE_EDX_AXMMX);
1966 pFeatures->fXop = RT_BOOL(pExtLeaf->uEcx & X86_CPUID_AMD_FEATURE_ECX_XOP);
1967 pFeatures->fSvm = RT_BOOL(pExtLeaf->uEcx & X86_CPUID_AMD_FEATURE_ECX_SVM);
1968 if (pFeatures->fSvm)
1969 {
1970 PCCPUMCPUIDLEAF pSvmLeaf = cpumR3CpuIdFindLeaf(paLeaves, cLeaves, 0x8000000a);
1971 AssertLogRelReturn(pSvmLeaf, VERR_CPUM_IPE_1);
1972 pFeatures->fSvmNestedPaging = RT_BOOL(pSvmLeaf->uEdx & X86_CPUID_SVM_FEATURE_EDX_NESTED_PAGING);
1973 pFeatures->fSvmLbrVirt = RT_BOOL(pSvmLeaf->uEdx & X86_CPUID_SVM_FEATURE_EDX_LBR_VIRT);
1974 pFeatures->fSvmSvmLock = RT_BOOL(pSvmLeaf->uEdx & X86_CPUID_SVM_FEATURE_EDX_SVM_LOCK);
1975 pFeatures->fSvmNextRipSave = RT_BOOL(pSvmLeaf->uEdx & X86_CPUID_SVM_FEATURE_EDX_NRIP_SAVE);
1976 pFeatures->fSvmTscRateMsr = RT_BOOL(pSvmLeaf->uEdx & X86_CPUID_SVM_FEATURE_EDX_TSC_RATE_MSR);
1977 pFeatures->fSvmVmcbClean = RT_BOOL(pSvmLeaf->uEdx & X86_CPUID_SVM_FEATURE_EDX_VMCB_CLEAN);
1978 pFeatures->fSvmFlusbByAsid = RT_BOOL(pSvmLeaf->uEdx & X86_CPUID_SVM_FEATURE_EDX_FLUSH_BY_ASID);
1979 pFeatures->fSvmDecodeAssists = RT_BOOL(pSvmLeaf->uEdx & X86_CPUID_SVM_FEATURE_EDX_DECODE_ASSISTS);
1980 pFeatures->fSvmPauseFilter = RT_BOOL(pSvmLeaf->uEdx & X86_CPUID_SVM_FEATURE_EDX_PAUSE_FILTER);
1981 pFeatures->fSvmPauseFilterThreshold = RT_BOOL(pSvmLeaf->uEdx & X86_CPUID_SVM_FEATURE_EDX_PAUSE_FILTER_THRESHOLD);
1982 pFeatures->fSvmAvic = RT_BOOL(pSvmLeaf->uEdx & X86_CPUID_SVM_FEATURE_EDX_AVIC);
1983 pFeatures->fSvmVirtVmsaveVmload = RT_BOOL(pSvmLeaf->uEdx & X86_CPUID_SVM_FEATURE_EDX_VIRT_VMSAVE_VMLOAD);
1984 pFeatures->fSvmVGif = RT_BOOL(pSvmLeaf->uEdx & X86_CPUID_SVM_FEATURE_EDX_VGIF);
1985 pFeatures->fSvmGmet = RT_BOOL(pSvmLeaf->uEdx & X86_CPUID_SVM_FEATURE_EDX_GMET);
1986 pFeatures->uSvmMaxAsid = pSvmLeaf->uEbx;
1987 }
1988 }
1989
1990 /*
1991 * Quirks.
1992 */
1993 pFeatures->fLeakyFxSR = pExtLeaf
1994 && (pExtLeaf->uEdx & X86_CPUID_AMD_FEATURE_EDX_FFXSR)
1995 && ( ( pFeatures->enmCpuVendor == CPUMCPUVENDOR_AMD
1996 && pFeatures->uFamily >= 6 /* K7 and up */)
1997 || pFeatures->enmCpuVendor == CPUMCPUVENDOR_HYGON);
1998
1999 /*
2000 * Max extended (/FPU) state.
2001 */
2002 pFeatures->cbMaxExtendedState = pFeatures->fFxSaveRstor ? sizeof(X86FXSTATE) : sizeof(X86FPUSTATE);
2003 if (pFeatures->fXSaveRstor)
2004 {
2005 PCCPUMCPUIDLEAF const pXStateLeaf0 = cpumR3CpuIdFindLeafEx(paLeaves, cLeaves, 13, 0);
2006 if (pXStateLeaf0)
2007 {
2008 if ( pXStateLeaf0->uEcx >= sizeof(X86FXSTATE)
2009 && pXStateLeaf0->uEcx <= CPUM_MAX_XSAVE_AREA_SIZE
2010 && RT_ALIGN_32(pXStateLeaf0->uEcx, 8) == pXStateLeaf0->uEcx
2011 && pXStateLeaf0->uEbx >= sizeof(X86FXSTATE)
2012 && pXStateLeaf0->uEbx <= pXStateLeaf0->uEcx
2013 && RT_ALIGN_32(pXStateLeaf0->uEbx, 8) == pXStateLeaf0->uEbx)
2014 {
2015 pFeatures->cbMaxExtendedState = pXStateLeaf0->uEcx;
2016
2017 /* (paranoia:) */
2018 PCCPUMCPUIDLEAF const pXStateLeaf1 = cpumR3CpuIdFindLeafEx(paLeaves, cLeaves, 13, 1);
2019 if ( pXStateLeaf1
2020 && pXStateLeaf1->uEbx > pFeatures->cbMaxExtendedState
2021 && pXStateLeaf1->uEbx <= CPUM_MAX_XSAVE_AREA_SIZE
2022 && (pXStateLeaf1->uEcx || pXStateLeaf1->uEdx) )
2023 pFeatures->cbMaxExtendedState = pXStateLeaf1->uEbx;
2024 }
2025 else
2026 AssertLogRelMsgFailedStmt(("Unexpected max/cur XSAVE area sizes: %#x/%#x\n", pXStateLeaf0->uEcx, pXStateLeaf0->uEbx),
2027 pFeatures->fXSaveRstor = 0);
2028 }
2029 else
2030 AssertLogRelMsgFailedStmt(("Expected leaf eax=0xd/ecx=0 with the XSAVE/XRSTOR feature!\n"),
2031 pFeatures->fXSaveRstor = 0);
2032 }
2033 }
2034 else
2035 AssertLogRelReturn(cLeaves == 0, VERR_CPUM_IPE_1);
2036 return VINF_SUCCESS;
2037}
2038
2039
2040/*
2041 *
2042 * Init related code.
2043 * Init related code.
2044 * Init related code.
2045 *
2046 *
2047 */
2048#ifndef IN_VBOX_CPU_REPORT
2049
2050
2051/**
2052 * Gets an exactly matching leaf + sub-leaf in the CPUID leaf array.
2053 *
2054 * This ignores the fSubLeafMask.
2055 *
2056 * @returns Pointer to the matching leaf, or NULL if not found.
2057 * @param pCpum The CPUM instance data.
2058 * @param uLeaf The leaf to locate.
2059 * @param uSubLeaf The subleaf to locate.
2060 */
2061static PCPUMCPUIDLEAF cpumR3CpuIdGetExactLeaf(PCPUM pCpum, uint32_t uLeaf, uint32_t uSubLeaf)
2062{
2063 uint64_t uNeedle = RT_MAKE_U64(uSubLeaf, uLeaf);
2064 PCPUMCPUIDLEAF paLeaves = pCpum->GuestInfo.paCpuIdLeavesR3;
2065 uint32_t iEnd = pCpum->GuestInfo.cCpuIdLeaves;
2066 if (iEnd)
2067 {
2068 uint32_t iBegin = 0;
2069 for (;;)
2070 {
2071 uint32_t const i = (iEnd - iBegin) / 2 + iBegin;
2072 uint64_t const uCur = RT_MAKE_U64(paLeaves[i].uSubLeaf, paLeaves[i].uLeaf);
2073 if (uNeedle < uCur)
2074 {
2075 if (i > iBegin)
2076 iEnd = i;
2077 else
2078 break;
2079 }
2080 else if (uNeedle > uCur)
2081 {
2082 if (i + 1 < iEnd)
2083 iBegin = i + 1;
2084 else
2085 break;
2086 }
2087 else
2088 return &paLeaves[i];
2089 }
2090 }
2091 return NULL;
2092}
2093
2094
2095/**
2096 * Loads MSR range overrides.
2097 *
2098 * This must be called before the MSR ranges are moved from the normal heap to
2099 * the hyper heap!
2100 *
2101 * @returns VBox status code (VMSetError called).
2102 * @param pVM The cross context VM structure.
2103 * @param pMsrNode The CFGM node with the MSR overrides.
2104 */
2105static int cpumR3LoadMsrOverrides(PVM pVM, PCFGMNODE pMsrNode)
2106{
2107 for (PCFGMNODE pNode = CFGMR3GetFirstChild(pMsrNode); pNode; pNode = CFGMR3GetNextChild(pNode))
2108 {
2109 /*
2110 * Assemble a valid MSR range.
2111 */
2112 CPUMMSRRANGE MsrRange;
2113 MsrRange.offCpumCpu = 0;
2114 MsrRange.fReserved = 0;
2115
2116 int rc = CFGMR3GetName(pNode, MsrRange.szName, sizeof(MsrRange.szName));
2117 if (RT_FAILURE(rc))
2118 return VMSetError(pVM, rc, RT_SRC_POS, "Invalid MSR entry (name is probably too long): %Rrc\n", rc);
2119
2120 rc = CFGMR3QueryU32(pNode, "First", &MsrRange.uFirst);
2121 if (RT_FAILURE(rc))
2122 return VMSetError(pVM, rc, RT_SRC_POS, "Invalid MSR entry '%s': Error querying mandatory 'First' value: %Rrc\n",
2123 MsrRange.szName, rc);
2124
2125 rc = CFGMR3QueryU32Def(pNode, "Last", &MsrRange.uLast, MsrRange.uFirst);
2126 if (RT_FAILURE(rc))
2127 return VMSetError(pVM, rc, RT_SRC_POS, "Invalid MSR entry '%s': Error querying 'Last' value: %Rrc\n",
2128 MsrRange.szName, rc);
2129
2130 char szType[32];
2131 rc = CFGMR3QueryStringDef(pNode, "Type", szType, sizeof(szType), "FixedValue");
2132 if (RT_FAILURE(rc))
2133 return VMSetError(pVM, rc, RT_SRC_POS, "Invalid MSR entry '%s': Error querying 'Type' value: %Rrc\n",
2134 MsrRange.szName, rc);
2135 if (!RTStrICmp(szType, "FixedValue"))
2136 {
2137 MsrRange.enmRdFn = kCpumMsrRdFn_FixedValue;
2138 MsrRange.enmWrFn = kCpumMsrWrFn_IgnoreWrite;
2139
2140 rc = CFGMR3QueryU64Def(pNode, "Value", &MsrRange.uValue, 0);
2141 if (RT_FAILURE(rc))
2142 return VMSetError(pVM, rc, RT_SRC_POS, "Invalid MSR entry '%s': Error querying 'Value' value: %Rrc\n",
2143 MsrRange.szName, rc);
2144
2145 rc = CFGMR3QueryU64Def(pNode, "WrGpMask", &MsrRange.fWrGpMask, 0);
2146 if (RT_FAILURE(rc))
2147 return VMSetError(pVM, rc, RT_SRC_POS, "Invalid MSR entry '%s': Error querying 'WrGpMask' value: %Rrc\n",
2148 MsrRange.szName, rc);
2149
2150 rc = CFGMR3QueryU64Def(pNode, "WrIgnMask", &MsrRange.fWrIgnMask, 0);
2151 if (RT_FAILURE(rc))
2152 return VMSetError(pVM, rc, RT_SRC_POS, "Invalid MSR entry '%s': Error querying 'WrIgnMask' value: %Rrc\n",
2153 MsrRange.szName, rc);
2154 }
2155 else
2156 return VMSetError(pVM, VERR_INVALID_PARAMETER, RT_SRC_POS,
2157 "Invalid MSR entry '%s': Unknown type '%s'\n", MsrRange.szName, szType);
2158
2159 /*
2160 * Insert the range into the table (replaces/splits/shrinks existing
2161 * MSR ranges).
2162 */
2163 rc = cpumR3MsrRangesInsert(NULL /* pVM */, &pVM->cpum.s.GuestInfo.paMsrRangesR3, &pVM->cpum.s.GuestInfo.cMsrRanges,
2164 &MsrRange);
2165 if (RT_FAILURE(rc))
2166 return VMSetError(pVM, rc, RT_SRC_POS, "Error adding MSR entry '%s': %Rrc\n", MsrRange.szName, rc);
2167 }
2168
2169 return VINF_SUCCESS;
2170}
2171
2172
2173/**
2174 * Loads CPUID leaf overrides.
2175 *
2176 * This must be called before the CPUID leaves are moved from the normal
2177 * heap to the hyper heap!
2178 *
2179 * @returns VBox status code (VMSetError called).
2180 * @param pVM The cross context VM structure.
2181 * @param pParentNode The CFGM node with the CPUID leaves.
2182 * @param pszLabel How to label the overrides we're loading.
2183 */
2184static int cpumR3LoadCpuIdOverrides(PVM pVM, PCFGMNODE pParentNode, const char *pszLabel)
2185{
2186 for (PCFGMNODE pNode = CFGMR3GetFirstChild(pParentNode); pNode; pNode = CFGMR3GetNextChild(pNode))
2187 {
2188 /*
2189 * Get the leaf and subleaf numbers.
2190 */
2191 char szName[128];
2192 int rc = CFGMR3GetName(pNode, szName, sizeof(szName));
2193 if (RT_FAILURE(rc))
2194 return VMSetError(pVM, rc, RT_SRC_POS, "Invalid %s entry (name is probably too long): %Rrc\n", pszLabel, rc);
2195
2196 /* The leaf number is either specified directly or thru the node name. */
2197 uint32_t uLeaf;
2198 rc = CFGMR3QueryU32(pNode, "Leaf", &uLeaf);
2199 if (rc == VERR_CFGM_VALUE_NOT_FOUND)
2200 {
2201 rc = RTStrToUInt32Full(szName, 16, &uLeaf);
2202 if (rc != VINF_SUCCESS)
2203 return VMSetError(pVM, VERR_INVALID_NAME, RT_SRC_POS,
2204 "Invalid %s entry: Invalid leaf number: '%s' \n", pszLabel, szName);
2205 }
2206 else if (RT_FAILURE(rc))
2207 return VMSetError(pVM, rc, RT_SRC_POS, "Invalid %s entry '%s': Error querying 'Leaf' value: %Rrc\n",
2208 pszLabel, szName, rc);
2209
2210 uint32_t uSubLeaf;
2211 rc = CFGMR3QueryU32Def(pNode, "SubLeaf", &uSubLeaf, 0);
2212 if (RT_FAILURE(rc))
2213 return VMSetError(pVM, rc, RT_SRC_POS, "Invalid %s entry '%s': Error querying 'SubLeaf' value: %Rrc\n",
2214 pszLabel, szName, rc);
2215
2216 uint32_t fSubLeafMask;
2217 rc = CFGMR3QueryU32Def(pNode, "SubLeafMask", &fSubLeafMask, 0);
2218 if (RT_FAILURE(rc))
2219 return VMSetError(pVM, rc, RT_SRC_POS, "Invalid %s entry '%s': Error querying 'SubLeafMask' value: %Rrc\n",
2220 pszLabel, szName, rc);
2221
2222 /*
2223 * Look up the specified leaf, since the output register values
2224 * defaults to any existing values. This allows overriding a single
2225 * register, without needing to know the other values.
2226 */
2227 PCCPUMCPUIDLEAF pLeaf = cpumR3CpuIdGetExactLeaf(&pVM->cpum.s, uLeaf, uSubLeaf);
2228 CPUMCPUIDLEAF Leaf;
2229 if (pLeaf)
2230 Leaf = *pLeaf;
2231 else
2232 RT_ZERO(Leaf);
2233 Leaf.uLeaf = uLeaf;
2234 Leaf.uSubLeaf = uSubLeaf;
2235 Leaf.fSubLeafMask = fSubLeafMask;
2236
2237 rc = CFGMR3QueryU32Def(pNode, "eax", &Leaf.uEax, Leaf.uEax);
2238 if (RT_FAILURE(rc))
2239 return VMSetError(pVM, rc, RT_SRC_POS, "Invalid %s entry '%s': Error querying 'eax' value: %Rrc\n",
2240 pszLabel, szName, rc);
2241 rc = CFGMR3QueryU32Def(pNode, "ebx", &Leaf.uEbx, Leaf.uEbx);
2242 if (RT_FAILURE(rc))
2243 return VMSetError(pVM, rc, RT_SRC_POS, "Invalid %s entry '%s': Error querying 'ebx' value: %Rrc\n",
2244 pszLabel, szName, rc);
2245 rc = CFGMR3QueryU32Def(pNode, "ecx", &Leaf.uEcx, Leaf.uEcx);
2246 if (RT_FAILURE(rc))
2247 return VMSetError(pVM, rc, RT_SRC_POS, "Invalid %s entry '%s': Error querying 'ecx' value: %Rrc\n",
2248 pszLabel, szName, rc);
2249 rc = CFGMR3QueryU32Def(pNode, "edx", &Leaf.uEdx, Leaf.uEdx);
2250 if (RT_FAILURE(rc))
2251 return VMSetError(pVM, rc, RT_SRC_POS, "Invalid %s entry '%s': Error querying 'edx' value: %Rrc\n",
2252 pszLabel, szName, rc);
2253
2254 /*
2255 * Insert the leaf into the table (replaces existing ones).
2256 */
2257 rc = cpumR3CpuIdInsert(NULL /* pVM */, &pVM->cpum.s.GuestInfo.paCpuIdLeavesR3, &pVM->cpum.s.GuestInfo.cCpuIdLeaves,
2258 &Leaf);
2259 if (RT_FAILURE(rc))
2260 return VMSetError(pVM, rc, RT_SRC_POS, "Error adding CPUID leaf entry '%s': %Rrc\n", szName, rc);
2261 }
2262
2263 return VINF_SUCCESS;
2264}
2265
2266
2267
2268/**
2269 * Fetches overrides for a CPUID leaf.
2270 *
2271 * @returns VBox status code.
2272 * @param pLeaf The leaf to load the overrides into.
2273 * @param pCfgNode The CFGM node containing the overrides
2274 * (/CPUM/HostCPUID/ or /CPUM/CPUID/).
2275 * @param iLeaf The CPUID leaf number.
2276 */
2277static int cpumR3CpuIdFetchLeafOverride(PCPUMCPUID pLeaf, PCFGMNODE pCfgNode, uint32_t iLeaf)
2278{
2279 PCFGMNODE pLeafNode = CFGMR3GetChildF(pCfgNode, "%RX32", iLeaf);
2280 if (pLeafNode)
2281 {
2282 uint32_t u32;
2283 int rc = CFGMR3QueryU32(pLeafNode, "eax", &u32);
2284 if (RT_SUCCESS(rc))
2285 pLeaf->uEax = u32;
2286 else
2287 AssertReturn(rc == VERR_CFGM_VALUE_NOT_FOUND, rc);
2288
2289 rc = CFGMR3QueryU32(pLeafNode, "ebx", &u32);
2290 if (RT_SUCCESS(rc))
2291 pLeaf->uEbx = u32;
2292 else
2293 AssertReturn(rc == VERR_CFGM_VALUE_NOT_FOUND, rc);
2294
2295 rc = CFGMR3QueryU32(pLeafNode, "ecx", &u32);
2296 if (RT_SUCCESS(rc))
2297 pLeaf->uEcx = u32;
2298 else
2299 AssertReturn(rc == VERR_CFGM_VALUE_NOT_FOUND, rc);
2300
2301 rc = CFGMR3QueryU32(pLeafNode, "edx", &u32);
2302 if (RT_SUCCESS(rc))
2303 pLeaf->uEdx = u32;
2304 else
2305 AssertReturn(rc == VERR_CFGM_VALUE_NOT_FOUND, rc);
2306
2307 }
2308 return VINF_SUCCESS;
2309}
2310
2311
2312/**
2313 * Load the overrides for a set of CPUID leaves.
2314 *
2315 * @returns VBox status code.
2316 * @param paLeaves The leaf array.
2317 * @param cLeaves The number of leaves.
2318 * @param uStart The start leaf number.
2319 * @param pCfgNode The CFGM node containing the overrides
2320 * (/CPUM/HostCPUID/ or /CPUM/CPUID/).
2321 */
2322static int cpumR3CpuIdInitLoadOverrideSet(uint32_t uStart, PCPUMCPUID paLeaves, uint32_t cLeaves, PCFGMNODE pCfgNode)
2323{
2324 for (uint32_t i = 0; i < cLeaves; i++)
2325 {
2326 int rc = cpumR3CpuIdFetchLeafOverride(&paLeaves[i], pCfgNode, uStart + i);
2327 if (RT_FAILURE(rc))
2328 return rc;
2329 }
2330
2331 return VINF_SUCCESS;
2332}
2333
2334
2335/**
2336 * Installs the CPUID leaves and explods the data into structures like
2337 * GuestFeatures and CPUMCTX::aoffXState.
2338 *
2339 * @returns VBox status code.
2340 * @param pVM The cross context VM structure.
2341 * @param pCpum The CPUM part of @a VM.
2342 * @param paLeaves The leaves. These will be copied (but not freed).
2343 * @param cLeaves The number of leaves.
2344 * @param pMsrs The MSRs.
2345 */
2346static int cpumR3CpuIdInstallAndExplodeLeaves(PVM pVM, PCPUM pCpum, PCPUMCPUIDLEAF paLeaves, uint32_t cLeaves, PCCPUMMSRS pMsrs)
2347{
2348 cpumR3CpuIdAssertOrder(paLeaves, cLeaves);
2349
2350 /*
2351 * Install the CPUID information.
2352 */
2353 int rc = MMHyperDupMem(pVM, paLeaves, sizeof(paLeaves[0]) * cLeaves, 32,
2354 MM_TAG_CPUM_CPUID, (void **)&pCpum->GuestInfo.paCpuIdLeavesR3);
2355
2356 AssertLogRelRCReturn(rc, rc);
2357 pCpum->GuestInfo.cCpuIdLeaves = cLeaves;
2358 pCpum->GuestInfo.paCpuIdLeavesR0 = MMHyperR3ToR0(pVM, pCpum->GuestInfo.paCpuIdLeavesR3);
2359 Assert(MMHyperR0ToR3(pVM, pCpum->GuestInfo.paCpuIdLeavesR0) == (void *)pCpum->GuestInfo.paCpuIdLeavesR3);
2360
2361 /*
2362 * Update the default CPUID leaf if necessary.
2363 */
2364 switch (pCpum->GuestInfo.enmUnknownCpuIdMethod)
2365 {
2366 case CPUMUNKNOWNCPUID_LAST_STD_LEAF:
2367 case CPUMUNKNOWNCPUID_LAST_STD_LEAF_WITH_ECX:
2368 {
2369 /* We don't use CPUID(0).eax here because of the NT hack that only
2370 changes that value without actually removing any leaves. */
2371 uint32_t i = 0;
2372 if ( pCpum->GuestInfo.cCpuIdLeaves > 0
2373 && pCpum->GuestInfo.paCpuIdLeavesR3[0].uLeaf <= UINT32_C(0xff))
2374 {
2375 while ( i + 1 < pCpum->GuestInfo.cCpuIdLeaves
2376 && pCpum->GuestInfo.paCpuIdLeavesR3[i + 1].uLeaf <= UINT32_C(0xff))
2377 i++;
2378 pCpum->GuestInfo.DefCpuId.uEax = pCpum->GuestInfo.paCpuIdLeavesR3[i].uEax;
2379 pCpum->GuestInfo.DefCpuId.uEbx = pCpum->GuestInfo.paCpuIdLeavesR3[i].uEbx;
2380 pCpum->GuestInfo.DefCpuId.uEcx = pCpum->GuestInfo.paCpuIdLeavesR3[i].uEcx;
2381 pCpum->GuestInfo.DefCpuId.uEdx = pCpum->GuestInfo.paCpuIdLeavesR3[i].uEdx;
2382 }
2383 break;
2384 }
2385 default:
2386 break;
2387 }
2388
2389 /*
2390 * Explode the guest CPU features.
2391 */
2392 rc = cpumR3CpuIdExplodeFeatures(pCpum->GuestInfo.paCpuIdLeavesR3, pCpum->GuestInfo.cCpuIdLeaves, pMsrs,
2393 &pCpum->GuestFeatures);
2394 AssertLogRelRCReturn(rc, rc);
2395
2396 /*
2397 * Adjust the scalable bus frequency according to the CPUID information
2398 * we're now using.
2399 */
2400 if (CPUMMICROARCH_IS_INTEL_CORE7(pVM->cpum.s.GuestFeatures.enmMicroarch))
2401 pCpum->GuestInfo.uScalableBusFreq = pCpum->GuestFeatures.enmMicroarch >= kCpumMicroarch_Intel_Core7_SandyBridge
2402 ? UINT64_C(100000000) /* 100MHz */
2403 : UINT64_C(133333333); /* 133MHz */
2404
2405 /*
2406 * Populate the legacy arrays. Currently used for everything, later only
2407 * for patch manager.
2408 */
2409 struct { PCPUMCPUID paCpuIds; uint32_t cCpuIds, uBase; } aOldRanges[] =
2410 {
2411 { pCpum->aGuestCpuIdPatmStd, RT_ELEMENTS(pCpum->aGuestCpuIdPatmStd), 0x00000000 },
2412 { pCpum->aGuestCpuIdPatmExt, RT_ELEMENTS(pCpum->aGuestCpuIdPatmExt), 0x80000000 },
2413 { pCpum->aGuestCpuIdPatmCentaur, RT_ELEMENTS(pCpum->aGuestCpuIdPatmCentaur), 0xc0000000 },
2414 };
2415 for (uint32_t i = 0; i < RT_ELEMENTS(aOldRanges); i++)
2416 {
2417 uint32_t cLeft = aOldRanges[i].cCpuIds;
2418 uint32_t uLeaf = aOldRanges[i].uBase + cLeft;
2419 PCPUMCPUID pLegacyLeaf = &aOldRanges[i].paCpuIds[cLeft];
2420 while (cLeft-- > 0)
2421 {
2422 uLeaf--;
2423 pLegacyLeaf--;
2424
2425 PCCPUMCPUIDLEAF pLeaf = cpumR3CpuIdGetExactLeaf(pCpum, uLeaf, 0 /* uSubLeaf */);
2426 if (pLeaf)
2427 {
2428 pLegacyLeaf->uEax = pLeaf->uEax;
2429 pLegacyLeaf->uEbx = pLeaf->uEbx;
2430 pLegacyLeaf->uEcx = pLeaf->uEcx;
2431 pLegacyLeaf->uEdx = pLeaf->uEdx;
2432 }
2433 else
2434 *pLegacyLeaf = pCpum->GuestInfo.DefCpuId;
2435 }
2436 }
2437
2438 /*
2439 * Configure XSAVE offsets according to the CPUID info and set the feature flags.
2440 */
2441 PVMCPU pVCpu0 = pVM->apCpusR3[0];
2442 memset(&pVCpu0->cpum.s.Guest.aoffXState[0], 0xff, sizeof(pVCpu0->cpum.s.Guest.aoffXState));
2443 pVCpu0->cpum.s.Guest.aoffXState[XSAVE_C_X87_BIT] = 0;
2444 pVCpu0->cpum.s.Guest.aoffXState[XSAVE_C_SSE_BIT] = 0;
2445 for (uint32_t iComponent = XSAVE_C_SSE_BIT + 1; iComponent < 63; iComponent++)
2446 if (pCpum->fXStateGuestMask & RT_BIT_64(iComponent))
2447 {
2448 PCPUMCPUIDLEAF pSubLeaf = cpumR3CpuIdGetExactLeaf(pCpum, 0xd, iComponent);
2449 AssertLogRelMsgReturn(pSubLeaf, ("iComponent=%#x\n", iComponent), VERR_CPUM_IPE_1);
2450 AssertLogRelMsgReturn(pSubLeaf->fSubLeafMask >= iComponent, ("iComponent=%#x\n", iComponent), VERR_CPUM_IPE_1);
2451 AssertLogRelMsgReturn( pSubLeaf->uEax > 0
2452 && pSubLeaf->uEbx >= CPUM_MIN_XSAVE_AREA_SIZE
2453 && pSubLeaf->uEax <= pCpum->GuestFeatures.cbMaxExtendedState
2454 && pSubLeaf->uEbx <= pCpum->GuestFeatures.cbMaxExtendedState
2455 && pSubLeaf->uEbx + pSubLeaf->uEax <= pCpum->GuestFeatures.cbMaxExtendedState,
2456 ("iComponent=%#x eax=%#x ebx=%#x cbMax=%#x\n", iComponent, pSubLeaf->uEax, pSubLeaf->uEbx,
2457 pCpum->GuestFeatures.cbMaxExtendedState),
2458 VERR_CPUM_IPE_1);
2459 pVCpu0->cpum.s.Guest.aoffXState[iComponent] = pSubLeaf->uEbx;
2460 }
2461
2462 /* Copy the CPU #0 data to the other CPUs. */
2463 for (VMCPUID idCpu = 1; idCpu < pVM->cCpus; idCpu++)
2464 {
2465 PVMCPU pVCpu = pVM->apCpusR3[idCpu];
2466 memcpy(&pVCpu->cpum.s.Guest.aoffXState[0], &pVCpu0->cpum.s.Guest.aoffXState[0], sizeof(pVCpu0->cpum.s.Guest.aoffXState));
2467 }
2468
2469 return VINF_SUCCESS;
2470}
2471
2472
2473/** @name Instruction Set Extension Options
2474 * @{ */
2475/** Configuration option type (extended boolean, really). */
2476typedef uint8_t CPUMISAEXTCFG;
2477/** Always disable the extension. */
2478#define CPUMISAEXTCFG_DISABLED false
2479/** Enable the extension if it's supported by the host CPU. */
2480#define CPUMISAEXTCFG_ENABLED_SUPPORTED true
2481/** Enable the extension if it's supported by the host CPU, but don't let
2482 * the portable CPUID feature disable it. */
2483#define CPUMISAEXTCFG_ENABLED_PORTABLE UINT8_C(127)
2484/** Always enable the extension. */
2485#define CPUMISAEXTCFG_ENABLED_ALWAYS UINT8_C(255)
2486/** @} */
2487
2488/**
2489 * CPUID Configuration (from CFGM).
2490 *
2491 * @remarks The members aren't document since we would only be duplicating the
2492 * \@cfgm entries in cpumR3CpuIdReadConfig.
2493 */
2494typedef struct CPUMCPUIDCONFIG
2495{
2496 bool fNt4LeafLimit;
2497 bool fInvariantTsc;
2498 bool fForceVme;
2499 bool fNestedHWVirt;
2500
2501 CPUMISAEXTCFG enmCmpXchg16b;
2502 CPUMISAEXTCFG enmMonitor;
2503 CPUMISAEXTCFG enmMWaitExtensions;
2504 CPUMISAEXTCFG enmSse41;
2505 CPUMISAEXTCFG enmSse42;
2506 CPUMISAEXTCFG enmAvx;
2507 CPUMISAEXTCFG enmAvx2;
2508 CPUMISAEXTCFG enmXSave;
2509 CPUMISAEXTCFG enmAesNi;
2510 CPUMISAEXTCFG enmPClMul;
2511 CPUMISAEXTCFG enmPopCnt;
2512 CPUMISAEXTCFG enmMovBe;
2513 CPUMISAEXTCFG enmRdRand;
2514 CPUMISAEXTCFG enmRdSeed;
2515 CPUMISAEXTCFG enmCLFlushOpt;
2516 CPUMISAEXTCFG enmFsGsBase;
2517 CPUMISAEXTCFG enmPcid;
2518 CPUMISAEXTCFG enmInvpcid;
2519 CPUMISAEXTCFG enmFlushCmdMsr;
2520 CPUMISAEXTCFG enmMdsClear;
2521 CPUMISAEXTCFG enmArchCapMsr;
2522
2523 CPUMISAEXTCFG enmAbm;
2524 CPUMISAEXTCFG enmSse4A;
2525 CPUMISAEXTCFG enmMisAlnSse;
2526 CPUMISAEXTCFG enm3dNowPrf;
2527 CPUMISAEXTCFG enmAmdExtMmx;
2528
2529 uint32_t uMaxStdLeaf;
2530 uint32_t uMaxExtLeaf;
2531 uint32_t uMaxCentaurLeaf;
2532 uint32_t uMaxIntelFamilyModelStep;
2533 char szCpuName[128];
2534} CPUMCPUIDCONFIG;
2535/** Pointer to CPUID config (from CFGM). */
2536typedef CPUMCPUIDCONFIG *PCPUMCPUIDCONFIG;
2537
2538
2539/**
2540 * Mini CPU selection support for making Mac OS X happy.
2541 *
2542 * Executes the /CPUM/MaxIntelFamilyModelStep config.
2543 *
2544 * @param pCpum The CPUM instance data.
2545 * @param pConfig The CPUID configuration we've read from CFGM.
2546 */
2547static void cpumR3CpuIdLimitIntelFamModStep(PCPUM pCpum, PCPUMCPUIDCONFIG pConfig)
2548{
2549 if (pCpum->GuestFeatures.enmCpuVendor == CPUMCPUVENDOR_INTEL)
2550 {
2551 PCPUMCPUIDLEAF pStdFeatureLeaf = cpumR3CpuIdGetExactLeaf(pCpum, 1, 0);
2552 uint32_t uCurIntelFamilyModelStep = RT_MAKE_U32_FROM_U8(ASMGetCpuStepping(pStdFeatureLeaf->uEax),
2553 ASMGetCpuModelIntel(pStdFeatureLeaf->uEax),
2554 ASMGetCpuFamily(pStdFeatureLeaf->uEax),
2555 0);
2556 uint32_t uMaxIntelFamilyModelStep = pConfig->uMaxIntelFamilyModelStep;
2557 if (pConfig->uMaxIntelFamilyModelStep < uCurIntelFamilyModelStep)
2558 {
2559 uint32_t uNew = pStdFeatureLeaf->uEax & UINT32_C(0xf0003000);
2560 uNew |= RT_BYTE1(uMaxIntelFamilyModelStep) & 0xf; /* stepping */
2561 uNew |= (RT_BYTE2(uMaxIntelFamilyModelStep) & 0xf) << 4; /* 4 low model bits */
2562 uNew |= (RT_BYTE2(uMaxIntelFamilyModelStep) >> 4) << 16; /* 4 high model bits */
2563 uNew |= (RT_BYTE3(uMaxIntelFamilyModelStep) & 0xf) << 8; /* 4 low family bits */
2564 if (RT_BYTE3(uMaxIntelFamilyModelStep) > 0xf) /* 8 high family bits, using intel's suggested calculation. */
2565 uNew |= ( (RT_BYTE3(uMaxIntelFamilyModelStep) - (RT_BYTE3(uMaxIntelFamilyModelStep) & 0xf)) & 0xff ) << 20;
2566 LogRel(("CPU: CPUID(0).EAX %#x -> %#x (uMaxIntelFamilyModelStep=%#x, uCurIntelFamilyModelStep=%#x\n",
2567 pStdFeatureLeaf->uEax, uNew, uMaxIntelFamilyModelStep, uCurIntelFamilyModelStep));
2568 pStdFeatureLeaf->uEax = uNew;
2569 }
2570 }
2571}
2572
2573
2574
2575/**
2576 * Limit it the number of entries, zapping the remainder.
2577 *
2578 * The limits are masking off stuff about power saving and similar, this
2579 * is perhaps a bit crudely done as there is probably some relatively harmless
2580 * info too in these leaves (like words about having a constant TSC).
2581 *
2582 * @param pCpum The CPUM instance data.
2583 * @param pConfig The CPUID configuration we've read from CFGM.
2584 */
2585static void cpumR3CpuIdLimitLeaves(PCPUM pCpum, PCPUMCPUIDCONFIG pConfig)
2586{
2587 /*
2588 * Standard leaves.
2589 */
2590 uint32_t uSubLeaf = 0;
2591 PCPUMCPUIDLEAF pCurLeaf = cpumR3CpuIdGetExactLeaf(pCpum, 0, uSubLeaf);
2592 if (pCurLeaf)
2593 {
2594 uint32_t uLimit = pCurLeaf->uEax;
2595 if (uLimit <= UINT32_C(0x000fffff))
2596 {
2597 if (uLimit > pConfig->uMaxStdLeaf)
2598 {
2599 pCurLeaf->uEax = uLimit = pConfig->uMaxStdLeaf;
2600 cpumR3CpuIdRemoveRange(pCpum->GuestInfo.paCpuIdLeavesR3, &pCpum->GuestInfo.cCpuIdLeaves,
2601 uLimit + 1, UINT32_C(0x000fffff));
2602 }
2603
2604 /* NT4 hack, no zapping of extra leaves here. */
2605 if (pConfig->fNt4LeafLimit && uLimit > 3)
2606 pCurLeaf->uEax = uLimit = 3;
2607
2608 while ((pCurLeaf = cpumR3CpuIdGetExactLeaf(pCpum, UINT32_C(0x00000000), ++uSubLeaf)) != NULL)
2609 pCurLeaf->uEax = uLimit;
2610 }
2611 else
2612 {
2613 LogRel(("CPUID: Invalid standard range: %#x\n", uLimit));
2614 cpumR3CpuIdRemoveRange(pCpum->GuestInfo.paCpuIdLeavesR3, &pCpum->GuestInfo.cCpuIdLeaves,
2615 UINT32_C(0x00000000), UINT32_C(0x0fffffff));
2616 }
2617 }
2618
2619 /*
2620 * Extended leaves.
2621 */
2622 uSubLeaf = 0;
2623 pCurLeaf = cpumR3CpuIdGetExactLeaf(pCpum, UINT32_C(0x80000000), uSubLeaf);
2624 if (pCurLeaf)
2625 {
2626 uint32_t uLimit = pCurLeaf->uEax;
2627 if ( uLimit >= UINT32_C(0x80000000)
2628 && uLimit <= UINT32_C(0x800fffff))
2629 {
2630 if (uLimit > pConfig->uMaxExtLeaf)
2631 {
2632 pCurLeaf->uEax = uLimit = pConfig->uMaxExtLeaf;
2633 cpumR3CpuIdRemoveRange(pCpum->GuestInfo.paCpuIdLeavesR3, &pCpum->GuestInfo.cCpuIdLeaves,
2634 uLimit + 1, UINT32_C(0x800fffff));
2635 while ((pCurLeaf = cpumR3CpuIdGetExactLeaf(pCpum, UINT32_C(0x80000000), ++uSubLeaf)) != NULL)
2636 pCurLeaf->uEax = uLimit;
2637 }
2638 }
2639 else
2640 {
2641 LogRel(("CPUID: Invalid extended range: %#x\n", uLimit));
2642 cpumR3CpuIdRemoveRange(pCpum->GuestInfo.paCpuIdLeavesR3, &pCpum->GuestInfo.cCpuIdLeaves,
2643 UINT32_C(0x80000000), UINT32_C(0x8ffffffd));
2644 }
2645 }
2646
2647 /*
2648 * Centaur leaves (VIA).
2649 */
2650 uSubLeaf = 0;
2651 pCurLeaf = cpumR3CpuIdGetExactLeaf(pCpum, UINT32_C(0xc0000000), uSubLeaf);
2652 if (pCurLeaf)
2653 {
2654 uint32_t uLimit = pCurLeaf->uEax;
2655 if ( uLimit >= UINT32_C(0xc0000000)
2656 && uLimit <= UINT32_C(0xc00fffff))
2657 {
2658 if (uLimit > pConfig->uMaxCentaurLeaf)
2659 {
2660 pCurLeaf->uEax = uLimit = pConfig->uMaxCentaurLeaf;
2661 cpumR3CpuIdRemoveRange(pCpum->GuestInfo.paCpuIdLeavesR3, &pCpum->GuestInfo.cCpuIdLeaves,
2662 uLimit + 1, UINT32_C(0xcfffffff));
2663 while ((pCurLeaf = cpumR3CpuIdGetExactLeaf(pCpum, UINT32_C(0xc0000000), ++uSubLeaf)) != NULL)
2664 pCurLeaf->uEax = uLimit;
2665 }
2666 }
2667 else
2668 {
2669 LogRel(("CPUID: Invalid centaur range: %#x\n", uLimit));
2670 cpumR3CpuIdRemoveRange(pCpum->GuestInfo.paCpuIdLeavesR3, &pCpum->GuestInfo.cCpuIdLeaves,
2671 UINT32_C(0xc0000000), UINT32_C(0xcfffffff));
2672 }
2673 }
2674}
2675
2676
2677/**
2678 * Clears a CPUID leaf and all sub-leaves (to zero).
2679 *
2680 * @param pCpum The CPUM instance data.
2681 * @param uLeaf The leaf to clear.
2682 */
2683static void cpumR3CpuIdZeroLeaf(PCPUM pCpum, uint32_t uLeaf)
2684{
2685 uint32_t uSubLeaf = 0;
2686 PCPUMCPUIDLEAF pCurLeaf;
2687 while ((pCurLeaf = cpumR3CpuIdGetExactLeaf(pCpum, uLeaf, uSubLeaf)) != NULL)
2688 {
2689 pCurLeaf->uEax = 0;
2690 pCurLeaf->uEbx = 0;
2691 pCurLeaf->uEcx = 0;
2692 pCurLeaf->uEdx = 0;
2693 uSubLeaf++;
2694 }
2695}
2696
2697
2698/**
2699 * Used by cpumR3CpuIdSanitize to ensure that we don't have any sub-leaves for
2700 * the given leaf.
2701 *
2702 * @returns pLeaf.
2703 * @param pCpum The CPUM instance data.
2704 * @param pLeaf The leaf to ensure is alone with it's EAX input value.
2705 */
2706static PCPUMCPUIDLEAF cpumR3CpuIdMakeSingleLeaf(PCPUM pCpum, PCPUMCPUIDLEAF pLeaf)
2707{
2708 Assert((uintptr_t)(pLeaf - pCpum->GuestInfo.paCpuIdLeavesR3) < pCpum->GuestInfo.cCpuIdLeaves);
2709 if (pLeaf->fSubLeafMask != 0)
2710 {
2711 /*
2712 * Figure out how many sub-leaves in need of removal (we'll keep the first).
2713 * Log everything while we're at it.
2714 */
2715 LogRel(("CPUM:\n"
2716 "CPUM: Unexpected CPUID sub-leaves for leaf %#x; fSubLeafMask=%#x\n", pLeaf->uLeaf, pLeaf->fSubLeafMask));
2717 PCPUMCPUIDLEAF pLast = &pCpum->GuestInfo.paCpuIdLeavesR3[pCpum->GuestInfo.cCpuIdLeaves - 1];
2718 PCPUMCPUIDLEAF pSubLeaf = pLeaf;
2719 for (;;)
2720 {
2721 LogRel(("CPUM: %08x/%08x: %08x %08x %08x %08x; flags=%#x mask=%#x\n",
2722 pSubLeaf->uLeaf, pSubLeaf->uSubLeaf,
2723 pSubLeaf->uEax, pSubLeaf->uEbx, pSubLeaf->uEcx, pSubLeaf->uEdx,
2724 pSubLeaf->fFlags, pSubLeaf->fSubLeafMask));
2725 if (pSubLeaf == pLast || pSubLeaf[1].uLeaf != pLeaf->uLeaf)
2726 break;
2727 pSubLeaf++;
2728 }
2729 LogRel(("CPUM:\n"));
2730
2731 /*
2732 * Remove the offending sub-leaves.
2733 */
2734 if (pSubLeaf != pLeaf)
2735 {
2736 if (pSubLeaf != pLast)
2737 memmove(pLeaf + 1, pSubLeaf + 1, (uintptr_t)pLast - (uintptr_t)pSubLeaf);
2738 pCpum->GuestInfo.cCpuIdLeaves -= (uint32_t)(pSubLeaf - pLeaf);
2739 }
2740
2741 /*
2742 * Convert the first sub-leaf into a single leaf.
2743 */
2744 pLeaf->uSubLeaf = 0;
2745 pLeaf->fSubLeafMask = 0;
2746 }
2747 return pLeaf;
2748}
2749
2750
2751/**
2752 * Sanitizes and adjust the CPUID leaves.
2753 *
2754 * Drop features that aren't virtualized (or virtualizable). Adjust information
2755 * and capabilities to fit the virtualized hardware. Remove information the
2756 * guest shouldn't have (because it's wrong in the virtual world or because it
2757 * gives away host details) or that we don't have documentation for and no idea
2758 * what means.
2759 *
2760 * @returns VBox status code.
2761 * @param pVM The cross context VM structure (for cCpus).
2762 * @param pCpum The CPUM instance data.
2763 * @param pConfig The CPUID configuration we've read from CFGM.
2764 */
2765static int cpumR3CpuIdSanitize(PVM pVM, PCPUM pCpum, PCPUMCPUIDCONFIG pConfig)
2766{
2767#define PORTABLE_CLEAR_BITS_WHEN(Lvl, a_pLeafReg, FeatNm, fMask, uValue) \
2768 if ( pCpum->u8PortableCpuIdLevel >= (Lvl) && ((a_pLeafReg) & (fMask)) == (uValue) ) \
2769 { \
2770 LogRel(("PortableCpuId: " #a_pLeafReg "[" #FeatNm "]: %#x -> 0\n", (a_pLeafReg) & (fMask))); \
2771 (a_pLeafReg) &= ~(uint32_t)(fMask); \
2772 }
2773#define PORTABLE_DISABLE_FEATURE_BIT(Lvl, a_pLeafReg, FeatNm, fBitMask) \
2774 if ( pCpum->u8PortableCpuIdLevel >= (Lvl) && ((a_pLeafReg) & (fBitMask)) ) \
2775 { \
2776 LogRel(("PortableCpuId: " #a_pLeafReg "[" #FeatNm "]: 1 -> 0\n")); \
2777 (a_pLeafReg) &= ~(uint32_t)(fBitMask); \
2778 }
2779#define PORTABLE_DISABLE_FEATURE_BIT_CFG(Lvl, a_pLeafReg, FeatNm, fBitMask, enmConfig) \
2780 if ( pCpum->u8PortableCpuIdLevel >= (Lvl) \
2781 && ((a_pLeafReg) & (fBitMask)) \
2782 && (enmConfig) != CPUMISAEXTCFG_ENABLED_PORTABLE ) \
2783 { \
2784 LogRel(("PortableCpuId: " #a_pLeafReg "[" #FeatNm "]: 1 -> 0\n")); \
2785 (a_pLeafReg) &= ~(uint32_t)(fBitMask); \
2786 }
2787 Assert(pCpum->GuestFeatures.enmCpuVendor != CPUMCPUVENDOR_INVALID);
2788
2789 /* The CPUID entries we start with here isn't necessarily the ones of the host, so we
2790 must consult HostFeatures when processing CPUMISAEXTCFG variables. */
2791 PCCPUMFEATURES pHstFeat = &pCpum->HostFeatures;
2792#define PASSTHRU_FEATURE(enmConfig, fHostFeature, fConst) \
2793 ((enmConfig) && ((enmConfig) == CPUMISAEXTCFG_ENABLED_ALWAYS || (fHostFeature)) ? (fConst) : 0)
2794#define PASSTHRU_FEATURE_EX(enmConfig, fHostFeature, fAndExpr, fConst) \
2795 ((enmConfig) && ((enmConfig) == CPUMISAEXTCFG_ENABLED_ALWAYS || (fHostFeature)) && (fAndExpr) ? (fConst) : 0)
2796#define PASSTHRU_FEATURE_TODO(enmConfig, fConst) ((enmConfig) ? (fConst) : 0)
2797
2798 /* Cpuid 1:
2799 * EAX: CPU model, family and stepping.
2800 *
2801 * ECX + EDX: Supported features. Only report features we can support.
2802 * Note! When enabling new features the Synthetic CPU and Portable CPUID
2803 * options may require adjusting (i.e. stripping what was enabled).
2804 *
2805 * EBX: Branding, CLFLUSH line size, logical processors per package and
2806 * initial APIC ID.
2807 */
2808 PCPUMCPUIDLEAF pStdFeatureLeaf = cpumR3CpuIdGetExactLeaf(pCpum, 1, 0); /* Note! Must refetch when used later. */
2809 AssertLogRelReturn(pStdFeatureLeaf, VERR_CPUM_IPE_2);
2810 pStdFeatureLeaf = cpumR3CpuIdMakeSingleLeaf(pCpum, pStdFeatureLeaf);
2811
2812 pStdFeatureLeaf->uEdx &= X86_CPUID_FEATURE_EDX_FPU
2813 | X86_CPUID_FEATURE_EDX_VME
2814 | X86_CPUID_FEATURE_EDX_DE
2815 | X86_CPUID_FEATURE_EDX_PSE
2816 | X86_CPUID_FEATURE_EDX_TSC
2817 | X86_CPUID_FEATURE_EDX_MSR
2818 //| X86_CPUID_FEATURE_EDX_PAE - set later if configured.
2819 | X86_CPUID_FEATURE_EDX_MCE
2820 | X86_CPUID_FEATURE_EDX_CX8
2821 //| X86_CPUID_FEATURE_EDX_APIC - set by the APIC device if present.
2822 //| RT_BIT_32(10) - not defined
2823 /* Note! we don't report sysenter/sysexit support due to our inability to keep the IOPL part of eflags in sync while in ring 1 (see @bugref{1757}) */
2824 //| X86_CPUID_FEATURE_EDX_SEP
2825 | X86_CPUID_FEATURE_EDX_MTRR
2826 | X86_CPUID_FEATURE_EDX_PGE
2827 | X86_CPUID_FEATURE_EDX_MCA
2828 | X86_CPUID_FEATURE_EDX_CMOV
2829 | X86_CPUID_FEATURE_EDX_PAT /* 16 */
2830 | X86_CPUID_FEATURE_EDX_PSE36
2831 //| X86_CPUID_FEATURE_EDX_PSN - no serial number.
2832 | X86_CPUID_FEATURE_EDX_CLFSH
2833 //| RT_BIT_32(20) - not defined
2834 //| X86_CPUID_FEATURE_EDX_DS - no debug store.
2835 //| X86_CPUID_FEATURE_EDX_ACPI - not supported (not DevAcpi, right?).
2836 | X86_CPUID_FEATURE_EDX_MMX
2837 | X86_CPUID_FEATURE_EDX_FXSR
2838 | X86_CPUID_FEATURE_EDX_SSE
2839 | X86_CPUID_FEATURE_EDX_SSE2
2840 //| X86_CPUID_FEATURE_EDX_SS - no self snoop.
2841 | X86_CPUID_FEATURE_EDX_HTT
2842 //| X86_CPUID_FEATURE_EDX_TM - no thermal monitor.
2843 //| RT_BIT_32(30) - not defined
2844 //| X86_CPUID_FEATURE_EDX_PBE - no pending break enabled.
2845 ;
2846 pStdFeatureLeaf->uEcx &= X86_CPUID_FEATURE_ECX_SSE3
2847 | PASSTHRU_FEATURE_TODO(pConfig->enmPClMul, X86_CPUID_FEATURE_ECX_PCLMUL)
2848 //| X86_CPUID_FEATURE_ECX_DTES64 - not implemented yet.
2849 /* Can't properly emulate monitor & mwait with guest SMP; force the guest to use hlt for idling VCPUs. */
2850 | PASSTHRU_FEATURE_EX(pConfig->enmMonitor, pHstFeat->fMonitorMWait, pVM->cCpus == 1, X86_CPUID_FEATURE_ECX_MONITOR)
2851 //| X86_CPUID_FEATURE_ECX_CPLDS - no CPL qualified debug store.
2852 | (pConfig->fNestedHWVirt ? X86_CPUID_FEATURE_ECX_VMX : 0)
2853 //| X86_CPUID_FEATURE_ECX_SMX - not virtualized yet.
2854 //| X86_CPUID_FEATURE_ECX_EST - no extended speed step.
2855 //| X86_CPUID_FEATURE_ECX_TM2 - no thermal monitor 2.
2856 | X86_CPUID_FEATURE_ECX_SSSE3
2857 //| X86_CPUID_FEATURE_ECX_CNTXID - no L1 context id (MSR++).
2858 //| X86_CPUID_FEATURE_ECX_FMA - not implemented yet.
2859 | PASSTHRU_FEATURE(pConfig->enmCmpXchg16b, pHstFeat->fMovCmpXchg16b, X86_CPUID_FEATURE_ECX_CX16)
2860 /* ECX Bit 14 - xTPR Update Control. Processor supports changing IA32_MISC_ENABLES[bit 23]. */
2861 //| X86_CPUID_FEATURE_ECX_TPRUPDATE
2862 //| X86_CPUID_FEATURE_ECX_PDCM - not implemented yet.
2863 | PASSTHRU_FEATURE(pConfig->enmPcid, pHstFeat->fPcid, X86_CPUID_FEATURE_ECX_PCID)
2864 //| X86_CPUID_FEATURE_ECX_DCA - not implemented yet.
2865 | PASSTHRU_FEATURE(pConfig->enmSse41, pHstFeat->fSse41, X86_CPUID_FEATURE_ECX_SSE4_1)
2866 | PASSTHRU_FEATURE(pConfig->enmSse42, pHstFeat->fSse42, X86_CPUID_FEATURE_ECX_SSE4_2)
2867 //| X86_CPUID_FEATURE_ECX_X2APIC - turned on later by the device if enabled.
2868 | PASSTHRU_FEATURE_TODO(pConfig->enmMovBe, X86_CPUID_FEATURE_ECX_MOVBE)
2869 | PASSTHRU_FEATURE_TODO(pConfig->enmPopCnt, X86_CPUID_FEATURE_ECX_POPCNT)
2870 //| X86_CPUID_FEATURE_ECX_TSCDEADL - not implemented yet.
2871 | PASSTHRU_FEATURE_TODO(pConfig->enmAesNi, X86_CPUID_FEATURE_ECX_AES)
2872 | PASSTHRU_FEATURE(pConfig->enmXSave, pHstFeat->fXSaveRstor, X86_CPUID_FEATURE_ECX_XSAVE)
2873 //| X86_CPUID_FEATURE_ECX_OSXSAVE - mirrors CR4.OSXSAVE state, set dynamically.
2874 | PASSTHRU_FEATURE(pConfig->enmAvx, pHstFeat->fAvx, X86_CPUID_FEATURE_ECX_AVX)
2875 //| X86_CPUID_FEATURE_ECX_F16C - not implemented yet.
2876 | PASSTHRU_FEATURE_TODO(pConfig->enmRdRand, X86_CPUID_FEATURE_ECX_RDRAND)
2877 //| X86_CPUID_FEATURE_ECX_HVP - Set explicitly later.
2878 ;
2879
2880 /* Mask out PCID unless FSGSBASE is exposed due to a bug in Windows 10 SMP guests, see @bugref{9089#c15}. */
2881 if ( !pVM->cpum.s.GuestFeatures.fFsGsBase
2882 && (pStdFeatureLeaf->uEcx & X86_CPUID_FEATURE_ECX_PCID))
2883 {
2884 pStdFeatureLeaf->uEcx &= ~X86_CPUID_FEATURE_ECX_PCID;
2885 LogRel(("CPUM: Disabled PCID without FSGSBASE to workaround buggy guests\n"));
2886 }
2887
2888 if (pCpum->u8PortableCpuIdLevel > 0)
2889 {
2890 PORTABLE_CLEAR_BITS_WHEN(1, pStdFeatureLeaf->uEax, ProcessorType, (UINT32_C(3) << 12), (UINT32_C(2) << 12));
2891 PORTABLE_DISABLE_FEATURE_BIT( 1, pStdFeatureLeaf->uEcx, SSSE3, X86_CPUID_FEATURE_ECX_SSSE3);
2892 PORTABLE_DISABLE_FEATURE_BIT_CFG(1, pStdFeatureLeaf->uEcx, PCID, X86_CPUID_FEATURE_ECX_PCID, pConfig->enmPcid);
2893 PORTABLE_DISABLE_FEATURE_BIT_CFG(1, pStdFeatureLeaf->uEcx, SSE4_1, X86_CPUID_FEATURE_ECX_SSE4_1, pConfig->enmSse41);
2894 PORTABLE_DISABLE_FEATURE_BIT_CFG(1, pStdFeatureLeaf->uEcx, SSE4_2, X86_CPUID_FEATURE_ECX_SSE4_2, pConfig->enmSse42);
2895 PORTABLE_DISABLE_FEATURE_BIT_CFG(1, pStdFeatureLeaf->uEcx, MOVBE, X86_CPUID_FEATURE_ECX_MOVBE, pConfig->enmMovBe);
2896 PORTABLE_DISABLE_FEATURE_BIT( 1, pStdFeatureLeaf->uEcx, AES, X86_CPUID_FEATURE_ECX_AES);
2897 PORTABLE_DISABLE_FEATURE_BIT( 1, pStdFeatureLeaf->uEcx, VMX, X86_CPUID_FEATURE_ECX_VMX);
2898 PORTABLE_DISABLE_FEATURE_BIT_CFG(1, pStdFeatureLeaf->uEcx, PCLMUL, X86_CPUID_FEATURE_ECX_PCLMUL, pConfig->enmPClMul);
2899 PORTABLE_DISABLE_FEATURE_BIT_CFG(1, pStdFeatureLeaf->uEcx, POPCNT, X86_CPUID_FEATURE_ECX_POPCNT, pConfig->enmPopCnt);
2900 PORTABLE_DISABLE_FEATURE_BIT( 1, pStdFeatureLeaf->uEcx, F16C, X86_CPUID_FEATURE_ECX_F16C);
2901 PORTABLE_DISABLE_FEATURE_BIT_CFG(1, pStdFeatureLeaf->uEcx, XSAVE, X86_CPUID_FEATURE_ECX_XSAVE, pConfig->enmXSave);
2902 PORTABLE_DISABLE_FEATURE_BIT_CFG(1, pStdFeatureLeaf->uEcx, AVX, X86_CPUID_FEATURE_ECX_AVX, pConfig->enmAvx);
2903 PORTABLE_DISABLE_FEATURE_BIT_CFG(1, pStdFeatureLeaf->uEcx, RDRAND, X86_CPUID_FEATURE_ECX_RDRAND, pConfig->enmRdRand);
2904 PORTABLE_DISABLE_FEATURE_BIT_CFG(1, pStdFeatureLeaf->uEcx, CX16, X86_CPUID_FEATURE_ECX_CX16, pConfig->enmCmpXchg16b);
2905 PORTABLE_DISABLE_FEATURE_BIT( 2, pStdFeatureLeaf->uEcx, SSE3, X86_CPUID_FEATURE_ECX_SSE3);
2906 PORTABLE_DISABLE_FEATURE_BIT( 3, pStdFeatureLeaf->uEdx, SSE2, X86_CPUID_FEATURE_EDX_SSE2);
2907 PORTABLE_DISABLE_FEATURE_BIT( 3, pStdFeatureLeaf->uEdx, SSE, X86_CPUID_FEATURE_EDX_SSE);
2908 PORTABLE_DISABLE_FEATURE_BIT( 3, pStdFeatureLeaf->uEdx, CLFSH, X86_CPUID_FEATURE_EDX_CLFSH);
2909 PORTABLE_DISABLE_FEATURE_BIT( 3, pStdFeatureLeaf->uEdx, CMOV, X86_CPUID_FEATURE_EDX_CMOV);
2910
2911 Assert(!(pStdFeatureLeaf->uEdx & ( X86_CPUID_FEATURE_EDX_SEP
2912 | X86_CPUID_FEATURE_EDX_PSN
2913 | X86_CPUID_FEATURE_EDX_DS
2914 | X86_CPUID_FEATURE_EDX_ACPI
2915 | X86_CPUID_FEATURE_EDX_SS
2916 | X86_CPUID_FEATURE_EDX_TM
2917 | X86_CPUID_FEATURE_EDX_PBE
2918 )));
2919 Assert(!(pStdFeatureLeaf->uEcx & ( X86_CPUID_FEATURE_ECX_DTES64
2920 | X86_CPUID_FEATURE_ECX_CPLDS
2921 | X86_CPUID_FEATURE_ECX_AES
2922 | X86_CPUID_FEATURE_ECX_VMX
2923 | X86_CPUID_FEATURE_ECX_SMX
2924 | X86_CPUID_FEATURE_ECX_EST
2925 | X86_CPUID_FEATURE_ECX_TM2
2926 | X86_CPUID_FEATURE_ECX_CNTXID
2927 | X86_CPUID_FEATURE_ECX_FMA
2928 | X86_CPUID_FEATURE_ECX_TPRUPDATE
2929 | X86_CPUID_FEATURE_ECX_PDCM
2930 | X86_CPUID_FEATURE_ECX_DCA
2931 | X86_CPUID_FEATURE_ECX_OSXSAVE
2932 )));
2933 }
2934
2935 /* Set up APIC ID for CPU 0, configure multi core/threaded smp. */
2936 pStdFeatureLeaf->uEbx &= UINT32_C(0x0000ffff); /* (APIC-ID := 0 and #LogCpus := 0) */
2937
2938 /* The HTT bit is architectural and does not directly indicate hyper-threading or multiple cores;
2939 * it was set even on single-core/non-HT Northwood P4s for example. The HTT bit only means that the
2940 * information in EBX[23:16] (max number of addressable logical processor IDs) is valid.
2941 */
2942#ifdef VBOX_WITH_MULTI_CORE
2943 if (pVM->cCpus > 1)
2944 pStdFeatureLeaf->uEdx |= X86_CPUID_FEATURE_EDX_HTT; /* Force if emulating a multi-core CPU. */
2945#endif
2946 if (pStdFeatureLeaf->uEdx & X86_CPUID_FEATURE_EDX_HTT)
2947 {
2948 /* If CPUID Fn0000_0001_EDX[HTT] = 1 then LogicalProcessorCount is the number of threads per CPU
2949 core times the number of CPU cores per processor */
2950#ifdef VBOX_WITH_MULTI_CORE
2951 pStdFeatureLeaf->uEbx |= pVM->cCpus <= 0xff ? (pVM->cCpus << 16) : UINT32_C(0x00ff0000);
2952#else
2953 /* Single logical processor in a package. */
2954 pStdFeatureLeaf->uEbx |= (1 << 16);
2955#endif
2956 }
2957
2958 uint32_t uMicrocodeRev;
2959 int rc = SUPR3QueryMicrocodeRev(&uMicrocodeRev);
2960 if (RT_SUCCESS(rc))
2961 {
2962 LogRel(("CPUM: Microcode revision 0x%08X\n", uMicrocodeRev));
2963 }
2964 else
2965 {
2966 uMicrocodeRev = 0;
2967 LogRel(("CPUM: Failed to query microcode revision. rc=%Rrc\n", rc));
2968 }
2969
2970 /* Mask out the VME capability on certain CPUs, unless overridden by fForceVme.
2971 * VME bug was fixed in AGESA 1.0.0.6, microcode patch level 8001126.
2972 */
2973 if ( ( pVM->cpum.s.GuestFeatures.enmMicroarch == kCpumMicroarch_AMD_Zen_Ryzen
2974 /** @todo The following ASSUMES that Hygon uses the same version numbering
2975 * as AMD and that they shipped buggy firmware. */
2976 || pVM->cpum.s.GuestFeatures.enmMicroarch == kCpumMicroarch_Hygon_Dhyana)
2977 && uMicrocodeRev < 0x8001126
2978 && !pConfig->fForceVme)
2979 {
2980 /** @todo The above is a very coarse test but at the moment we don't know any better (see @bugref{8852}). */
2981 LogRel(("CPUM: Zen VME workaround engaged\n"));
2982 pStdFeatureLeaf->uEdx &= ~X86_CPUID_FEATURE_EDX_VME;
2983 }
2984
2985 /* Force standard feature bits. */
2986 if (pConfig->enmPClMul == CPUMISAEXTCFG_ENABLED_ALWAYS)
2987 pStdFeatureLeaf->uEcx |= X86_CPUID_FEATURE_ECX_PCLMUL;
2988 if (pConfig->enmMonitor == CPUMISAEXTCFG_ENABLED_ALWAYS)
2989 pStdFeatureLeaf->uEcx |= X86_CPUID_FEATURE_ECX_MONITOR;
2990 if (pConfig->enmCmpXchg16b == CPUMISAEXTCFG_ENABLED_ALWAYS)
2991 pStdFeatureLeaf->uEcx |= X86_CPUID_FEATURE_ECX_CX16;
2992 if (pConfig->enmSse41 == CPUMISAEXTCFG_ENABLED_ALWAYS)
2993 pStdFeatureLeaf->uEcx |= X86_CPUID_FEATURE_ECX_SSE4_1;
2994 if (pConfig->enmSse42 == CPUMISAEXTCFG_ENABLED_ALWAYS)
2995 pStdFeatureLeaf->uEcx |= X86_CPUID_FEATURE_ECX_SSE4_2;
2996 if (pConfig->enmMovBe == CPUMISAEXTCFG_ENABLED_ALWAYS)
2997 pStdFeatureLeaf->uEcx |= X86_CPUID_FEATURE_ECX_MOVBE;
2998 if (pConfig->enmPopCnt == CPUMISAEXTCFG_ENABLED_ALWAYS)
2999 pStdFeatureLeaf->uEcx |= X86_CPUID_FEATURE_ECX_POPCNT;
3000 if (pConfig->enmAesNi == CPUMISAEXTCFG_ENABLED_ALWAYS)
3001 pStdFeatureLeaf->uEcx |= X86_CPUID_FEATURE_ECX_AES;
3002 if (pConfig->enmXSave == CPUMISAEXTCFG_ENABLED_ALWAYS)
3003 pStdFeatureLeaf->uEcx |= X86_CPUID_FEATURE_ECX_XSAVE;
3004 if (pConfig->enmAvx == CPUMISAEXTCFG_ENABLED_ALWAYS)
3005 pStdFeatureLeaf->uEcx |= X86_CPUID_FEATURE_ECX_AVX;
3006 if (pConfig->enmRdRand == CPUMISAEXTCFG_ENABLED_ALWAYS)
3007 pStdFeatureLeaf->uEcx |= X86_CPUID_FEATURE_ECX_RDRAND;
3008
3009 pStdFeatureLeaf = NULL; /* Must refetch! */
3010
3011 /* Cpuid 0x80000001: (Similar, but in no way identical to 0x00000001.)
3012 * AMD:
3013 * EAX: CPU model, family and stepping.
3014 *
3015 * ECX + EDX: Supported features. Only report features we can support.
3016 * Note! When enabling new features the Synthetic CPU and Portable CPUID
3017 * options may require adjusting (i.e. stripping what was enabled).
3018 * ASSUMES that this is ALWAYS the AMD defined feature set if present.
3019 *
3020 * EBX: Branding ID and package type (or reserved).
3021 *
3022 * Intel and probably most others:
3023 * EAX: 0
3024 * EBX: 0
3025 * ECX + EDX: Subset of AMD features, mainly for AMD64 support.
3026 */
3027 PCPUMCPUIDLEAF pExtFeatureLeaf = cpumR3CpuIdGetExactLeaf(pCpum, UINT32_C(0x80000001), 0);
3028 if (pExtFeatureLeaf)
3029 {
3030 pExtFeatureLeaf = cpumR3CpuIdMakeSingleLeaf(pCpum, pExtFeatureLeaf);
3031
3032 pExtFeatureLeaf->uEdx &= X86_CPUID_AMD_FEATURE_EDX_FPU
3033 | X86_CPUID_AMD_FEATURE_EDX_VME
3034 | X86_CPUID_AMD_FEATURE_EDX_DE
3035 | X86_CPUID_AMD_FEATURE_EDX_PSE
3036 | X86_CPUID_AMD_FEATURE_EDX_TSC
3037 | X86_CPUID_AMD_FEATURE_EDX_MSR //?? this means AMD MSRs..
3038 //| X86_CPUID_AMD_FEATURE_EDX_PAE - turned on when necessary
3039 //| X86_CPUID_AMD_FEATURE_EDX_MCE - not virtualized yet.
3040 | X86_CPUID_AMD_FEATURE_EDX_CX8
3041 //| X86_CPUID_AMD_FEATURE_EDX_APIC - set by the APIC device if present.
3042 //| RT_BIT_32(10) - reserved
3043 /* Note! We don't report sysenter/sysexit support due to our inability to keep the IOPL part of
3044 eflags in sync while in ring 1 (see @bugref{1757}). HM enables them later. */
3045 //| X86_CPUID_EXT_FEATURE_EDX_SYSCALL
3046 | X86_CPUID_AMD_FEATURE_EDX_MTRR
3047 | X86_CPUID_AMD_FEATURE_EDX_PGE
3048 | X86_CPUID_AMD_FEATURE_EDX_MCA
3049 | X86_CPUID_AMD_FEATURE_EDX_CMOV
3050 | X86_CPUID_AMD_FEATURE_EDX_PAT
3051 | X86_CPUID_AMD_FEATURE_EDX_PSE36
3052 //| RT_BIT_32(18) - reserved
3053 //| RT_BIT_32(19) - reserved
3054 //| X86_CPUID_EXT_FEATURE_EDX_NX - enabled later by PGM
3055 //| RT_BIT_32(21) - reserved
3056 | PASSTHRU_FEATURE(pConfig->enmAmdExtMmx, pHstFeat->fAmdMmxExts, X86_CPUID_AMD_FEATURE_EDX_AXMMX)
3057 | X86_CPUID_AMD_FEATURE_EDX_MMX
3058 | X86_CPUID_AMD_FEATURE_EDX_FXSR
3059 | X86_CPUID_AMD_FEATURE_EDX_FFXSR
3060 //| X86_CPUID_EXT_FEATURE_EDX_PAGE1GB
3061 | X86_CPUID_EXT_FEATURE_EDX_RDTSCP
3062 //| RT_BIT_32(28) - reserved
3063 //| X86_CPUID_EXT_FEATURE_EDX_LONG_MODE - turned on when necessary
3064 | X86_CPUID_AMD_FEATURE_EDX_3DNOW_EX
3065 | X86_CPUID_AMD_FEATURE_EDX_3DNOW
3066 ;
3067 pExtFeatureLeaf->uEcx &= X86_CPUID_EXT_FEATURE_ECX_LAHF_SAHF
3068 //| X86_CPUID_AMD_FEATURE_ECX_CMPL - set below if applicable.
3069 | (pConfig->fNestedHWVirt ? X86_CPUID_AMD_FEATURE_ECX_SVM : 0)
3070 //| X86_CPUID_AMD_FEATURE_ECX_EXT_APIC
3071 /* Note: This could prevent teleporting from AMD to Intel CPUs! */
3072 | X86_CPUID_AMD_FEATURE_ECX_CR8L /* expose lock mov cr0 = mov cr8 hack for guests that can use this feature to access the TPR. */
3073 | PASSTHRU_FEATURE_TODO(pConfig->enmAbm, X86_CPUID_AMD_FEATURE_ECX_ABM)
3074 | PASSTHRU_FEATURE_TODO(pConfig->enmSse4A, X86_CPUID_AMD_FEATURE_ECX_SSE4A)
3075 | PASSTHRU_FEATURE_TODO(pConfig->enmMisAlnSse, X86_CPUID_AMD_FEATURE_ECX_MISALNSSE)
3076 | PASSTHRU_FEATURE(pConfig->enm3dNowPrf, pHstFeat->f3DNowPrefetch, X86_CPUID_AMD_FEATURE_ECX_3DNOWPRF)
3077 //| X86_CPUID_AMD_FEATURE_ECX_OSVW
3078 //| X86_CPUID_AMD_FEATURE_ECX_IBS
3079 //| X86_CPUID_AMD_FEATURE_ECX_XOP
3080 //| X86_CPUID_AMD_FEATURE_ECX_SKINIT
3081 //| X86_CPUID_AMD_FEATURE_ECX_WDT
3082 //| RT_BIT_32(14) - reserved
3083 //| X86_CPUID_AMD_FEATURE_ECX_LWP - not supported
3084 //| X86_CPUID_AMD_FEATURE_ECX_FMA4 - not yet virtualized.
3085 //| RT_BIT_32(17) - reserved
3086 //| RT_BIT_32(18) - reserved
3087 //| X86_CPUID_AMD_FEATURE_ECX_NODEID - not yet virtualized.
3088 //| RT_BIT_32(20) - reserved
3089 //| X86_CPUID_AMD_FEATURE_ECX_TBM - not yet virtualized.
3090 //| X86_CPUID_AMD_FEATURE_ECX_TOPOEXT - not yet virtualized.
3091 //| RT_BIT_32(23) - reserved
3092 //| RT_BIT_32(24) - reserved
3093 //| RT_BIT_32(25) - reserved
3094 //| RT_BIT_32(26) - reserved
3095 //| RT_BIT_32(27) - reserved
3096 //| RT_BIT_32(28) - reserved
3097 //| RT_BIT_32(29) - reserved
3098 //| RT_BIT_32(30) - reserved
3099 //| RT_BIT_32(31) - reserved
3100 ;
3101#ifdef VBOX_WITH_MULTI_CORE
3102 if ( pVM->cCpus > 1
3103 && ( pCpum->GuestFeatures.enmCpuVendor == CPUMCPUVENDOR_AMD
3104 || pCpum->GuestFeatures.enmCpuVendor == CPUMCPUVENDOR_HYGON))
3105 pExtFeatureLeaf->uEcx |= X86_CPUID_AMD_FEATURE_ECX_CMPL; /* CmpLegacy */
3106#endif
3107
3108 if (pCpum->u8PortableCpuIdLevel > 0)
3109 {
3110 PORTABLE_DISABLE_FEATURE_BIT( 1, pExtFeatureLeaf->uEcx, CR8L, X86_CPUID_AMD_FEATURE_ECX_CR8L);
3111 PORTABLE_DISABLE_FEATURE_BIT( 1, pExtFeatureLeaf->uEcx, SVM, X86_CPUID_AMD_FEATURE_ECX_SVM);
3112 PORTABLE_DISABLE_FEATURE_BIT_CFG(1, pExtFeatureLeaf->uEcx, ABM, X86_CPUID_AMD_FEATURE_ECX_ABM, pConfig->enmAbm);
3113 PORTABLE_DISABLE_FEATURE_BIT_CFG(1, pExtFeatureLeaf->uEcx, SSE4A, X86_CPUID_AMD_FEATURE_ECX_SSE4A, pConfig->enmSse4A);
3114 PORTABLE_DISABLE_FEATURE_BIT_CFG(1, pExtFeatureLeaf->uEcx, MISALNSSE, X86_CPUID_AMD_FEATURE_ECX_MISALNSSE, pConfig->enmMisAlnSse);
3115 PORTABLE_DISABLE_FEATURE_BIT_CFG(1, pExtFeatureLeaf->uEcx, 3DNOWPRF, X86_CPUID_AMD_FEATURE_ECX_3DNOWPRF, pConfig->enm3dNowPrf);
3116 PORTABLE_DISABLE_FEATURE_BIT( 1, pExtFeatureLeaf->uEcx, XOP, X86_CPUID_AMD_FEATURE_ECX_XOP);
3117 PORTABLE_DISABLE_FEATURE_BIT( 1, pExtFeatureLeaf->uEcx, TBM, X86_CPUID_AMD_FEATURE_ECX_TBM);
3118 PORTABLE_DISABLE_FEATURE_BIT( 1, pExtFeatureLeaf->uEcx, FMA4, X86_CPUID_AMD_FEATURE_ECX_FMA4);
3119 PORTABLE_DISABLE_FEATURE_BIT_CFG(1, pExtFeatureLeaf->uEdx, AXMMX, X86_CPUID_AMD_FEATURE_EDX_AXMMX, pConfig->enmAmdExtMmx);
3120 PORTABLE_DISABLE_FEATURE_BIT( 1, pExtFeatureLeaf->uEdx, 3DNOW, X86_CPUID_AMD_FEATURE_EDX_3DNOW);
3121 PORTABLE_DISABLE_FEATURE_BIT( 1, pExtFeatureLeaf->uEdx, 3DNOW_EX, X86_CPUID_AMD_FEATURE_EDX_3DNOW_EX);
3122 PORTABLE_DISABLE_FEATURE_BIT( 1, pExtFeatureLeaf->uEdx, FFXSR, X86_CPUID_AMD_FEATURE_EDX_FFXSR);
3123 PORTABLE_DISABLE_FEATURE_BIT( 1, pExtFeatureLeaf->uEdx, RDTSCP, X86_CPUID_EXT_FEATURE_EDX_RDTSCP);
3124 PORTABLE_DISABLE_FEATURE_BIT( 2, pExtFeatureLeaf->uEcx, LAHF_SAHF, X86_CPUID_EXT_FEATURE_ECX_LAHF_SAHF);
3125 PORTABLE_DISABLE_FEATURE_BIT( 3, pExtFeatureLeaf->uEcx, CMOV, X86_CPUID_AMD_FEATURE_EDX_CMOV);
3126
3127 Assert(!(pExtFeatureLeaf->uEcx & ( X86_CPUID_AMD_FEATURE_ECX_SVM
3128 | X86_CPUID_AMD_FEATURE_ECX_EXT_APIC
3129 | X86_CPUID_AMD_FEATURE_ECX_OSVW
3130 | X86_CPUID_AMD_FEATURE_ECX_IBS
3131 | X86_CPUID_AMD_FEATURE_ECX_SKINIT
3132 | X86_CPUID_AMD_FEATURE_ECX_WDT
3133 | X86_CPUID_AMD_FEATURE_ECX_LWP
3134 | X86_CPUID_AMD_FEATURE_ECX_NODEID
3135 | X86_CPUID_AMD_FEATURE_ECX_TOPOEXT
3136 | UINT32_C(0xff964000)
3137 )));
3138 Assert(!(pExtFeatureLeaf->uEdx & ( RT_BIT(10)
3139 | X86_CPUID_EXT_FEATURE_EDX_SYSCALL
3140 | RT_BIT(18)
3141 | RT_BIT(19)
3142 | RT_BIT(21)
3143 | X86_CPUID_AMD_FEATURE_EDX_AXMMX
3144 | X86_CPUID_EXT_FEATURE_EDX_PAGE1GB
3145 | RT_BIT(28)
3146 )));
3147 }
3148
3149 /* Force extended feature bits. */
3150 if (pConfig->enmAbm == CPUMISAEXTCFG_ENABLED_ALWAYS)
3151 pExtFeatureLeaf->uEcx |= X86_CPUID_AMD_FEATURE_ECX_ABM;
3152 if (pConfig->enmSse4A == CPUMISAEXTCFG_ENABLED_ALWAYS)
3153 pExtFeatureLeaf->uEcx |= X86_CPUID_AMD_FEATURE_ECX_SSE4A;
3154 if (pConfig->enmMisAlnSse == CPUMISAEXTCFG_ENABLED_ALWAYS)
3155 pExtFeatureLeaf->uEcx |= X86_CPUID_AMD_FEATURE_ECX_MISALNSSE;
3156 if (pConfig->enm3dNowPrf == CPUMISAEXTCFG_ENABLED_ALWAYS)
3157 pExtFeatureLeaf->uEcx |= X86_CPUID_AMD_FEATURE_ECX_3DNOWPRF;
3158 if (pConfig->enmAmdExtMmx == CPUMISAEXTCFG_ENABLED_ALWAYS)
3159 pExtFeatureLeaf->uEdx |= X86_CPUID_AMD_FEATURE_EDX_AXMMX;
3160 }
3161 pExtFeatureLeaf = NULL; /* Must refetch! */
3162
3163
3164 /* Cpuid 2:
3165 * Intel: (Nondeterministic) Cache and TLB information
3166 * AMD: Reserved
3167 * VIA: Reserved
3168 * Safe to expose.
3169 */
3170 uint32_t uSubLeaf = 0;
3171 PCPUMCPUIDLEAF pCurLeaf;
3172 while ((pCurLeaf = cpumR3CpuIdGetExactLeaf(pCpum, 2, uSubLeaf)) != NULL)
3173 {
3174 if ((pCurLeaf->uEax & 0xff) > 1)
3175 {
3176 LogRel(("CpuId: Std[2].al: %d -> 1\n", pCurLeaf->uEax & 0xff));
3177 pCurLeaf->uEax &= UINT32_C(0xffffff01);
3178 }
3179 uSubLeaf++;
3180 }
3181
3182 /* Cpuid 3:
3183 * Intel: EAX, EBX - reserved (transmeta uses these)
3184 * ECX, EDX - Processor Serial Number if available, otherwise reserved
3185 * AMD: Reserved
3186 * VIA: Reserved
3187 * Safe to expose
3188 */
3189 pStdFeatureLeaf = cpumR3CpuIdGetExactLeaf(pCpum, 1, 0);
3190 if (!(pStdFeatureLeaf->uEdx & X86_CPUID_FEATURE_EDX_PSN))
3191 {
3192 uSubLeaf = 0;
3193 while ((pCurLeaf = cpumR3CpuIdGetExactLeaf(pCpum, 3, uSubLeaf)) != NULL)
3194 {
3195 pCurLeaf->uEcx = pCurLeaf->uEdx = 0;
3196 if (pCpum->u8PortableCpuIdLevel > 0)
3197 pCurLeaf->uEax = pCurLeaf->uEbx = 0;
3198 uSubLeaf++;
3199 }
3200 }
3201
3202 /* Cpuid 4 + ECX:
3203 * Intel: Deterministic Cache Parameters Leaf.
3204 * AMD: Reserved
3205 * VIA: Reserved
3206 * Safe to expose, except for EAX:
3207 * Bits 25-14: Maximum number of addressable IDs for logical processors sharing this cache (see note)**
3208 * Bits 31-26: Maximum number of processor cores in this physical package**
3209 * Note: These SMP values are constant regardless of ECX
3210 */
3211 uSubLeaf = 0;
3212 while ((pCurLeaf = cpumR3CpuIdGetExactLeaf(pCpum, 4, uSubLeaf)) != NULL)
3213 {
3214 pCurLeaf->uEax &= UINT32_C(0x00003fff); /* Clear the #maxcores, #threads-sharing-cache (both are #-1).*/
3215#ifdef VBOX_WITH_MULTI_CORE
3216 if ( pVM->cCpus > 1
3217 && pCpum->GuestFeatures.enmCpuVendor == CPUMCPUVENDOR_INTEL)
3218 {
3219 AssertReturn(pVM->cCpus <= 64, VERR_TOO_MANY_CPUS);
3220 /* One logical processor with possibly multiple cores. */
3221 /* See http://www.intel.com/Assets/PDF/appnote/241618.pdf p. 29 */
3222 pCurLeaf->uEax |= pVM->cCpus <= 0x40 ? ((pVM->cCpus - 1) << 26) : UINT32_C(0xfc000000); /* 6 bits only -> 64 cores! */
3223 }
3224#endif
3225 uSubLeaf++;
3226 }
3227
3228 /* Cpuid 5: Monitor/mwait Leaf
3229 * Intel: ECX, EDX - reserved
3230 * EAX, EBX - Smallest and largest monitor line size
3231 * AMD: EDX - reserved
3232 * EAX, EBX - Smallest and largest monitor line size
3233 * ECX - extensions (ignored for now)
3234 * VIA: Reserved
3235 * Safe to expose
3236 */
3237 uSubLeaf = 0;
3238 while ((pCurLeaf = cpumR3CpuIdGetExactLeaf(pCpum, 5, uSubLeaf)) != NULL)
3239 {
3240 pStdFeatureLeaf = cpumR3CpuIdGetExactLeaf(pCpum, 1, 0);
3241 if (!(pStdFeatureLeaf->uEcx & X86_CPUID_FEATURE_ECX_MONITOR))
3242 pCurLeaf->uEax = pCurLeaf->uEbx = 0;
3243
3244 pCurLeaf->uEcx = pCurLeaf->uEdx = 0;
3245 if (pConfig->enmMWaitExtensions)
3246 {
3247 pCurLeaf->uEcx = X86_CPUID_MWAIT_ECX_EXT | X86_CPUID_MWAIT_ECX_BREAKIRQIF0;
3248 /** @todo for now we just expose host's MWAIT C-states, although conceptually
3249 it shall be part of our power management virtualization model */
3250#if 0
3251 /* MWAIT sub C-states */
3252 pCurLeaf->uEdx =
3253 (0 << 0) /* 0 in C0 */ |
3254 (2 << 4) /* 2 in C1 */ |
3255 (2 << 8) /* 2 in C2 */ |
3256 (2 << 12) /* 2 in C3 */ |
3257 (0 << 16) /* 0 in C4 */
3258 ;
3259#endif
3260 }
3261 else
3262 pCurLeaf->uEcx = pCurLeaf->uEdx = 0;
3263 uSubLeaf++;
3264 }
3265
3266 /* Cpuid 6: Digital Thermal Sensor and Power Management Paramenters.
3267 * Intel: Various stuff.
3268 * AMD: EAX, EBX, EDX - reserved.
3269 * ECX - Bit zero is EffFreq, indicating MSR_0000_00e7 and MSR_0000_00e8
3270 * present. Same as intel.
3271 * VIA: ??
3272 *
3273 * We clear everything here for now.
3274 */
3275 cpumR3CpuIdZeroLeaf(pCpum, 6);
3276
3277 /* Cpuid 7 + ECX: Structured Extended Feature Flags Enumeration
3278 * EAX: Number of sub leaves.
3279 * EBX+ECX+EDX: Feature flags
3280 *
3281 * We only have documentation for one sub-leaf, so clear all other (no need
3282 * to remove them as such, just set them to zero).
3283 *
3284 * Note! When enabling new features the Synthetic CPU and Portable CPUID
3285 * options may require adjusting (i.e. stripping what was enabled).
3286 */
3287 uSubLeaf = 0;
3288 while ((pCurLeaf = cpumR3CpuIdGetExactLeaf(pCpum, 7, uSubLeaf)) != NULL)
3289 {
3290 switch (uSubLeaf)
3291 {
3292 case 0:
3293 {
3294 pCurLeaf->uEax = 0; /* Max ECX input is 0. */
3295 pCurLeaf->uEbx &= 0
3296 | PASSTHRU_FEATURE(pConfig->enmFsGsBase, pHstFeat->fFsGsBase, X86_CPUID_STEXT_FEATURE_EBX_FSGSBASE)
3297 //| X86_CPUID_STEXT_FEATURE_EBX_TSC_ADJUST RT_BIT(1)
3298 //| X86_CPUID_STEXT_FEATURE_EBX_SGX RT_BIT(2)
3299 //| X86_CPUID_STEXT_FEATURE_EBX_BMI1 RT_BIT(3)
3300 //| X86_CPUID_STEXT_FEATURE_EBX_HLE RT_BIT(4)
3301 | PASSTHRU_FEATURE(pConfig->enmAvx2, pHstFeat->fAvx2, X86_CPUID_STEXT_FEATURE_EBX_AVX2)
3302 | X86_CPUID_STEXT_FEATURE_EBX_FDP_EXCPTN_ONLY
3303 //| X86_CPUID_STEXT_FEATURE_EBX_SMEP RT_BIT(7)
3304 //| X86_CPUID_STEXT_FEATURE_EBX_BMI2 RT_BIT(8)
3305 //| X86_CPUID_STEXT_FEATURE_EBX_ERMS RT_BIT(9)
3306 | PASSTHRU_FEATURE(pConfig->enmInvpcid, pHstFeat->fInvpcid, X86_CPUID_STEXT_FEATURE_EBX_INVPCID)
3307 //| X86_CPUID_STEXT_FEATURE_EBX_RTM RT_BIT(11)
3308 //| X86_CPUID_STEXT_FEATURE_EBX_PQM RT_BIT(12)
3309 | X86_CPUID_STEXT_FEATURE_EBX_DEPR_FPU_CS_DS
3310 //| X86_CPUID_STEXT_FEATURE_EBX_MPE RT_BIT(14)
3311 //| X86_CPUID_STEXT_FEATURE_EBX_PQE RT_BIT(15)
3312 //| X86_CPUID_STEXT_FEATURE_EBX_AVX512F RT_BIT(16)
3313 //| RT_BIT(17) - reserved
3314 | PASSTHRU_FEATURE_TODO(pConfig->enmRdSeed, X86_CPUID_STEXT_FEATURE_EBX_RDSEED)
3315 //| X86_CPUID_STEXT_FEATURE_EBX_ADX RT_BIT(19)
3316 //| X86_CPUID_STEXT_FEATURE_EBX_SMAP RT_BIT(20)
3317 //| RT_BIT(21) - reserved
3318 //| RT_BIT(22) - reserved
3319 | PASSTHRU_FEATURE(pConfig->enmCLFlushOpt, pHstFeat->fClFlushOpt, X86_CPUID_STEXT_FEATURE_EBX_CLFLUSHOPT)
3320 //| RT_BIT(24) - reserved
3321 //| X86_CPUID_STEXT_FEATURE_EBX_INTEL_PT RT_BIT(25)
3322 //| X86_CPUID_STEXT_FEATURE_EBX_AVX512PF RT_BIT(26)
3323 //| X86_CPUID_STEXT_FEATURE_EBX_AVX512ER RT_BIT(27)
3324 //| X86_CPUID_STEXT_FEATURE_EBX_AVX512CD RT_BIT(28)
3325 //| X86_CPUID_STEXT_FEATURE_EBX_SHA RT_BIT(29)
3326 //| RT_BIT(30) - reserved
3327 //| RT_BIT(31) - reserved
3328 ;
3329 pCurLeaf->uEcx &= 0
3330 //| X86_CPUID_STEXT_FEATURE_ECX_PREFETCHWT1 - we do not do vector functions yet.
3331 ;
3332 pCurLeaf->uEdx &= 0
3333 | PASSTHRU_FEATURE(pConfig->enmMdsClear, pHstFeat->fMdsClear, X86_CPUID_STEXT_FEATURE_EDX_MD_CLEAR)
3334 //| X86_CPUID_STEXT_FEATURE_EDX_IBRS_IBPB RT_BIT(26)
3335 //| X86_CPUID_STEXT_FEATURE_EDX_STIBP RT_BIT(27)
3336 | PASSTHRU_FEATURE(pConfig->enmFlushCmdMsr, pHstFeat->fFlushCmd, X86_CPUID_STEXT_FEATURE_EDX_FLUSH_CMD)
3337 | PASSTHRU_FEATURE(pConfig->enmArchCapMsr, pHstFeat->fArchCap, X86_CPUID_STEXT_FEATURE_EDX_ARCHCAP)
3338 ;
3339
3340 /* Mask out INVPCID unless FSGSBASE is exposed due to a bug in Windows 10 SMP guests, see @bugref{9089#c15}. */
3341 if ( !pVM->cpum.s.GuestFeatures.fFsGsBase
3342 && (pCurLeaf->uEbx & X86_CPUID_STEXT_FEATURE_EBX_INVPCID))
3343 {
3344 pCurLeaf->uEbx &= ~X86_CPUID_STEXT_FEATURE_EBX_INVPCID;
3345 LogRel(("CPUM: Disabled INVPCID without FSGSBASE to work around buggy guests\n"));
3346 }
3347
3348 if (pCpum->u8PortableCpuIdLevel > 0)
3349 {
3350 PORTABLE_DISABLE_FEATURE_BIT_CFG(1, pCurLeaf->uEbx, FSGSBASE, X86_CPUID_STEXT_FEATURE_EBX_FSGSBASE, pConfig->enmFsGsBase);
3351 PORTABLE_DISABLE_FEATURE_BIT( 1, pCurLeaf->uEbx, SGX, X86_CPUID_STEXT_FEATURE_EBX_SGX);
3352 PORTABLE_DISABLE_FEATURE_BIT_CFG(1, pCurLeaf->uEbx, AVX2, X86_CPUID_STEXT_FEATURE_EBX_AVX2, pConfig->enmAvx2);
3353 PORTABLE_DISABLE_FEATURE_BIT( 1, pCurLeaf->uEbx, SMEP, X86_CPUID_STEXT_FEATURE_EBX_SMEP);
3354 PORTABLE_DISABLE_FEATURE_BIT( 1, pCurLeaf->uEbx, BMI2, X86_CPUID_STEXT_FEATURE_EBX_BMI2);
3355 PORTABLE_DISABLE_FEATURE_BIT_CFG(1, pCurLeaf->uEbx, INVPCID, X86_CPUID_STEXT_FEATURE_EBX_INVPCID, pConfig->enmInvpcid);
3356 PORTABLE_DISABLE_FEATURE_BIT( 1, pCurLeaf->uEbx, AVX512F, X86_CPUID_STEXT_FEATURE_EBX_AVX512F);
3357 PORTABLE_DISABLE_FEATURE_BIT_CFG(1, pCurLeaf->uEbx, RDSEED, X86_CPUID_STEXT_FEATURE_EBX_RDSEED, pConfig->enmRdSeed);
3358 PORTABLE_DISABLE_FEATURE_BIT_CFG(1, pCurLeaf->uEbx, CLFLUSHOPT, X86_CPUID_STEXT_FEATURE_EBX_RDSEED, pConfig->enmCLFlushOpt);
3359 PORTABLE_DISABLE_FEATURE_BIT( 1, pCurLeaf->uEbx, AVX512PF, X86_CPUID_STEXT_FEATURE_EBX_AVX512PF);
3360 PORTABLE_DISABLE_FEATURE_BIT( 1, pCurLeaf->uEbx, AVX512ER, X86_CPUID_STEXT_FEATURE_EBX_AVX512ER);
3361 PORTABLE_DISABLE_FEATURE_BIT( 1, pCurLeaf->uEbx, AVX512CD, X86_CPUID_STEXT_FEATURE_EBX_AVX512CD);
3362 PORTABLE_DISABLE_FEATURE_BIT( 1, pCurLeaf->uEbx, SMAP, X86_CPUID_STEXT_FEATURE_EBX_SMAP);
3363 PORTABLE_DISABLE_FEATURE_BIT( 1, pCurLeaf->uEbx, SHA, X86_CPUID_STEXT_FEATURE_EBX_SHA);
3364 PORTABLE_DISABLE_FEATURE_BIT( 1, pCurLeaf->uEcx, PREFETCHWT1, X86_CPUID_STEXT_FEATURE_ECX_PREFETCHWT1);
3365 PORTABLE_DISABLE_FEATURE_BIT_CFG(3, pCurLeaf->uEdx, FLUSH_CMD, X86_CPUID_STEXT_FEATURE_EDX_FLUSH_CMD, pConfig->enmFlushCmdMsr);
3366 PORTABLE_DISABLE_FEATURE_BIT_CFG(3, pCurLeaf->uEdx, MD_CLEAR, X86_CPUID_STEXT_FEATURE_EDX_MD_CLEAR, pConfig->enmMdsClear);
3367 PORTABLE_DISABLE_FEATURE_BIT_CFG(3, pCurLeaf->uEdx, ARCHCAP, X86_CPUID_STEXT_FEATURE_EDX_ARCHCAP, pConfig->enmArchCapMsr);
3368 }
3369
3370 /* Dependencies. */
3371 if (!(pCurLeaf->uEdx & X86_CPUID_STEXT_FEATURE_EDX_FLUSH_CMD))
3372 pCurLeaf->uEdx &= ~X86_CPUID_STEXT_FEATURE_EDX_MD_CLEAR;
3373
3374 /* Force standard feature bits. */
3375 if (pConfig->enmFsGsBase == CPUMISAEXTCFG_ENABLED_ALWAYS)
3376 pCurLeaf->uEbx |= X86_CPUID_STEXT_FEATURE_EBX_FSGSBASE;
3377 if (pConfig->enmAvx2 == CPUMISAEXTCFG_ENABLED_ALWAYS)
3378 pCurLeaf->uEbx |= X86_CPUID_STEXT_FEATURE_EBX_AVX2;
3379 if (pConfig->enmRdSeed == CPUMISAEXTCFG_ENABLED_ALWAYS)
3380 pCurLeaf->uEbx |= X86_CPUID_STEXT_FEATURE_EBX_RDSEED;
3381 if (pConfig->enmCLFlushOpt == CPUMISAEXTCFG_ENABLED_ALWAYS)
3382 pCurLeaf->uEbx |= X86_CPUID_STEXT_FEATURE_EBX_CLFLUSHOPT;
3383 if (pConfig->enmInvpcid == CPUMISAEXTCFG_ENABLED_ALWAYS)
3384 pCurLeaf->uEbx |= X86_CPUID_STEXT_FEATURE_EBX_INVPCID;
3385 if (pConfig->enmFlushCmdMsr == CPUMISAEXTCFG_ENABLED_ALWAYS)
3386 pCurLeaf->uEdx |= X86_CPUID_STEXT_FEATURE_EDX_FLUSH_CMD;
3387 if (pConfig->enmMdsClear == CPUMISAEXTCFG_ENABLED_ALWAYS)
3388 pCurLeaf->uEdx |= X86_CPUID_STEXT_FEATURE_EDX_MD_CLEAR;
3389 if (pConfig->enmArchCapMsr == CPUMISAEXTCFG_ENABLED_ALWAYS)
3390 pCurLeaf->uEdx |= X86_CPUID_STEXT_FEATURE_EDX_ARCHCAP;
3391 break;
3392 }
3393
3394 default:
3395 /* Invalid index, all values are zero. */
3396 pCurLeaf->uEax = 0;
3397 pCurLeaf->uEbx = 0;
3398 pCurLeaf->uEcx = 0;
3399 pCurLeaf->uEdx = 0;
3400 break;
3401 }
3402 uSubLeaf++;
3403 }
3404
3405 /* Cpuid 8: Marked as reserved by Intel and AMD.
3406 * We zero this since we don't know what it may have been used for.
3407 */
3408 cpumR3CpuIdZeroLeaf(pCpum, 8);
3409
3410 /* Cpuid 9: Direct Cache Access (DCA) Parameters
3411 * Intel: EAX - Value of PLATFORM_DCA_CAP bits.
3412 * EBX, ECX, EDX - reserved.
3413 * AMD: Reserved
3414 * VIA: ??
3415 *
3416 * We zero this.
3417 */
3418 cpumR3CpuIdZeroLeaf(pCpum, 9);
3419
3420 /* Cpuid 0xa: Architectural Performance Monitor Features
3421 * Intel: EAX - Value of PLATFORM_DCA_CAP bits.
3422 * EBX, ECX, EDX - reserved.
3423 * AMD: Reserved
3424 * VIA: ??
3425 *
3426 * We zero this, for now at least.
3427 */
3428 cpumR3CpuIdZeroLeaf(pCpum, 10);
3429
3430 /* Cpuid 0xb+ECX: x2APIC Features / Processor Topology.
3431 * Intel: EAX - APCI ID shift right for next level.
3432 * EBX - Factory configured cores/threads at this level.
3433 * ECX - Level number (same as input) and level type (1,2,0).
3434 * EDX - Extended initial APIC ID.
3435 * AMD: Reserved
3436 * VIA: ??
3437 */
3438 uSubLeaf = 0;
3439 while ((pCurLeaf = cpumR3CpuIdGetExactLeaf(pCpum, 11, uSubLeaf)) != NULL)
3440 {
3441 if (pCurLeaf->fFlags & CPUMCPUIDLEAF_F_CONTAINS_APIC_ID)
3442 {
3443 uint8_t bLevelType = RT_BYTE2(pCurLeaf->uEcx);
3444 if (bLevelType == 1)
3445 {
3446 /* Thread level - we don't do threads at the moment. */
3447 pCurLeaf->uEax = 0; /** @todo is this correct? Real CPUs never do 0 here, I think... */
3448 pCurLeaf->uEbx = 1;
3449 }
3450 else if (bLevelType == 2)
3451 {
3452 /* Core level. */
3453 pCurLeaf->uEax = 1; /** @todo real CPUs are supposed to be in the 4-6 range, not 1. Our APIC ID assignments are a little special... */
3454#ifdef VBOX_WITH_MULTI_CORE
3455 while (RT_BIT_32(pCurLeaf->uEax) < pVM->cCpus)
3456 pCurLeaf->uEax++;
3457#endif
3458 pCurLeaf->uEbx = pVM->cCpus;
3459 }
3460 else
3461 {
3462 AssertLogRelMsg(bLevelType == 0, ("bLevelType=%#x uSubLeaf=%#x\n", bLevelType, uSubLeaf));
3463 pCurLeaf->uEax = 0;
3464 pCurLeaf->uEbx = 0;
3465 pCurLeaf->uEcx = 0;
3466 }
3467 pCurLeaf->uEcx = (pCurLeaf->uEcx & UINT32_C(0xffffff00)) | (uSubLeaf & 0xff);
3468 pCurLeaf->uEdx = 0; /* APIC ID is filled in by CPUMGetGuestCpuId() at runtime. Init for EMT(0) as usual. */
3469 }
3470 else
3471 {
3472 pCurLeaf->uEax = 0;
3473 pCurLeaf->uEbx = 0;
3474 pCurLeaf->uEcx = 0;
3475 pCurLeaf->uEdx = 0;
3476 }
3477 uSubLeaf++;
3478 }
3479
3480 /* Cpuid 0xc: Marked as reserved by Intel and AMD.
3481 * We zero this since we don't know what it may have been used for.
3482 */
3483 cpumR3CpuIdZeroLeaf(pCpum, 12);
3484
3485 /* Cpuid 0xd + ECX: Processor Extended State Enumeration
3486 * ECX=0: EAX - Valid bits in XCR0[31:0].
3487 * EBX - Maximum state size as per current XCR0 value.
3488 * ECX - Maximum state size for all supported features.
3489 * EDX - Valid bits in XCR0[63:32].
3490 * ECX=1: EAX - Various X-features.
3491 * EBX - Maximum state size as per current XCR0|IA32_XSS value.
3492 * ECX - Valid bits in IA32_XSS[31:0].
3493 * EDX - Valid bits in IA32_XSS[63:32].
3494 * ECX=N, where N in 2..63 and indicates a bit in XCR0 and/or IA32_XSS,
3495 * if the bit invalid all four registers are set to zero.
3496 * EAX - The state size for this feature.
3497 * EBX - The state byte offset of this feature.
3498 * ECX - Bit 0 indicates whether this sub-leaf maps to a valid IA32_XSS bit (=1) or a valid XCR0 bit (=0).
3499 * EDX - Reserved, but is set to zero if invalid sub-leaf index.
3500 *
3501 * Clear them all as we don't currently implement extended CPU state.
3502 */
3503 /* Figure out the supported XCR0/XSS mask component and make sure CPUID[1].ECX[27] = CR4.OSXSAVE. */
3504 uint64_t fGuestXcr0Mask = 0;
3505 pStdFeatureLeaf = cpumR3CpuIdGetExactLeaf(pCpum, 1, 0);
3506 if (pStdFeatureLeaf && (pStdFeatureLeaf->uEcx & X86_CPUID_FEATURE_ECX_XSAVE))
3507 {
3508 fGuestXcr0Mask = XSAVE_C_X87 | XSAVE_C_SSE;
3509 if (pStdFeatureLeaf && (pStdFeatureLeaf->uEcx & X86_CPUID_FEATURE_ECX_AVX))
3510 fGuestXcr0Mask |= XSAVE_C_YMM;
3511 pCurLeaf = cpumR3CpuIdGetExactLeaf(pCpum, 7, 0);
3512 if (pCurLeaf && (pCurLeaf->uEbx & X86_CPUID_STEXT_FEATURE_EBX_AVX512F))
3513 fGuestXcr0Mask |= XSAVE_C_ZMM_16HI | XSAVE_C_ZMM_HI256 | XSAVE_C_OPMASK;
3514 fGuestXcr0Mask &= pCpum->fXStateHostMask;
3515
3516 pStdFeatureLeaf->fFlags |= CPUMCPUIDLEAF_F_CONTAINS_OSXSAVE;
3517 }
3518 pStdFeatureLeaf = NULL;
3519 pCpum->fXStateGuestMask = fGuestXcr0Mask;
3520
3521 /* Work the sub-leaves. */
3522 uint32_t cbXSaveMaxActual = CPUM_MIN_XSAVE_AREA_SIZE;
3523 uint32_t cbXSaveMaxReport = CPUM_MIN_XSAVE_AREA_SIZE;
3524 for (uSubLeaf = 0; uSubLeaf < 63; uSubLeaf++)
3525 {
3526 pCurLeaf = cpumR3CpuIdGetExactLeaf(pCpum, 13, uSubLeaf);
3527 if (pCurLeaf)
3528 {
3529 if (fGuestXcr0Mask)
3530 {
3531 switch (uSubLeaf)
3532 {
3533 case 0:
3534 pCurLeaf->uEax &= RT_LO_U32(fGuestXcr0Mask);
3535 pCurLeaf->uEdx &= RT_HI_U32(fGuestXcr0Mask);
3536 AssertLogRelMsgReturn((pCurLeaf->uEax & (XSAVE_C_X87 | XSAVE_C_SSE)) == (XSAVE_C_X87 | XSAVE_C_SSE),
3537 ("CPUID(0xd/0).EAX missing mandatory X87 or SSE bits: %#RX32", pCurLeaf->uEax),
3538 VERR_CPUM_IPE_1);
3539 cbXSaveMaxActual = pCurLeaf->uEcx;
3540 AssertLogRelMsgReturn(cbXSaveMaxActual <= CPUM_MAX_XSAVE_AREA_SIZE && cbXSaveMaxActual >= CPUM_MIN_XSAVE_AREA_SIZE,
3541 ("%#x max=%#x\n", cbXSaveMaxActual, CPUM_MAX_XSAVE_AREA_SIZE), VERR_CPUM_IPE_2);
3542 AssertLogRelMsgReturn(pCurLeaf->uEbx >= CPUM_MIN_XSAVE_AREA_SIZE && pCurLeaf->uEbx <= cbXSaveMaxActual,
3543 ("ebx=%#x cbXSaveMaxActual=%#x\n", pCurLeaf->uEbx, cbXSaveMaxActual),
3544 VERR_CPUM_IPE_2);
3545 continue;
3546 case 1:
3547 pCurLeaf->uEax &= 0;
3548 pCurLeaf->uEcx &= 0;
3549 pCurLeaf->uEdx &= 0;
3550 /** @todo what about checking ebx? */
3551 continue;
3552 default:
3553 if (fGuestXcr0Mask & RT_BIT_64(uSubLeaf))
3554 {
3555 AssertLogRelMsgReturn( pCurLeaf->uEax <= cbXSaveMaxActual
3556 && pCurLeaf->uEax > 0
3557 && pCurLeaf->uEbx < cbXSaveMaxActual
3558 && pCurLeaf->uEbx >= CPUM_MIN_XSAVE_AREA_SIZE
3559 && pCurLeaf->uEbx + pCurLeaf->uEax <= cbXSaveMaxActual,
3560 ("%#x: eax=%#x ebx=%#x cbMax=%#x\n",
3561 uSubLeaf, pCurLeaf->uEax, pCurLeaf->uEbx, cbXSaveMaxActual),
3562 VERR_CPUM_IPE_2);
3563 AssertLogRel(!(pCurLeaf->uEcx & 1));
3564 pCurLeaf->uEcx = 0; /* Bit 0 should be zero (XCR0), the reset are reserved... */
3565 pCurLeaf->uEdx = 0; /* it's reserved... */
3566 if (pCurLeaf->uEbx + pCurLeaf->uEax > cbXSaveMaxReport)
3567 cbXSaveMaxReport = pCurLeaf->uEbx + pCurLeaf->uEax;
3568 continue;
3569 }
3570 break;
3571 }
3572 }
3573
3574 /* Clear the leaf. */
3575 pCurLeaf->uEax = 0;
3576 pCurLeaf->uEbx = 0;
3577 pCurLeaf->uEcx = 0;
3578 pCurLeaf->uEdx = 0;
3579 }
3580 }
3581
3582 /* Update the max and current feature sizes to shut up annoying Linux kernels. */
3583 if (cbXSaveMaxReport != cbXSaveMaxActual && fGuestXcr0Mask)
3584 {
3585 pCurLeaf = cpumR3CpuIdGetExactLeaf(pCpum, 13, 0);
3586 if (pCurLeaf)
3587 {
3588 LogRel(("CPUM: Changing leaf 13[0]: EBX=%#RX32 -> %#RX32, ECX=%#RX32 -> %#RX32\n",
3589 pCurLeaf->uEbx, cbXSaveMaxReport, pCurLeaf->uEcx, cbXSaveMaxReport));
3590 pCurLeaf->uEbx = cbXSaveMaxReport;
3591 pCurLeaf->uEcx = cbXSaveMaxReport;
3592 }
3593 }
3594
3595 /* Cpuid 0xe: Marked as reserved by Intel and AMD.
3596 * We zero this since we don't know what it may have been used for.
3597 */
3598 cpumR3CpuIdZeroLeaf(pCpum, 14);
3599
3600 /* Cpuid 0xf + ECX: Platform quality of service monitoring (PQM),
3601 * also known as Intel Resource Director Technology (RDT) Monitoring
3602 * We zero this as we don't currently virtualize PQM.
3603 */
3604 cpumR3CpuIdZeroLeaf(pCpum, 15);
3605
3606 /* Cpuid 0x10 + ECX: Platform quality of service enforcement (PQE),
3607 * also known as Intel Resource Director Technology (RDT) Allocation
3608 * We zero this as we don't currently virtualize PQE.
3609 */
3610 cpumR3CpuIdZeroLeaf(pCpum, 16);
3611
3612 /* Cpuid 0x11: Marked as reserved by Intel and AMD.
3613 * We zero this since we don't know what it may have been used for.
3614 */
3615 cpumR3CpuIdZeroLeaf(pCpum, 17);
3616
3617 /* Cpuid 0x12 + ECX: SGX resource enumeration.
3618 * We zero this as we don't currently virtualize this.
3619 */
3620 cpumR3CpuIdZeroLeaf(pCpum, 18);
3621
3622 /* Cpuid 0x13: Marked as reserved by Intel and AMD.
3623 * We zero this since we don't know what it may have been used for.
3624 */
3625 cpumR3CpuIdZeroLeaf(pCpum, 19);
3626
3627 /* Cpuid 0x14 + ECX: Processor Trace (PT) capability enumeration.
3628 * We zero this as we don't currently virtualize this.
3629 */
3630 cpumR3CpuIdZeroLeaf(pCpum, 20);
3631
3632 /* Cpuid 0x15: Timestamp Counter / Core Crystal Clock info.
3633 * Intel: uTscFrequency = uCoreCrystalClockFrequency * EBX / EAX.
3634 * EAX - denominator (unsigned).
3635 * EBX - numerator (unsigned).
3636 * ECX, EDX - reserved.
3637 * AMD: Reserved / undefined / not implemented.
3638 * VIA: Reserved / undefined / not implemented.
3639 * We zero this as we don't currently virtualize this.
3640 */
3641 cpumR3CpuIdZeroLeaf(pCpum, 21);
3642
3643 /* Cpuid 0x16: Processor frequency info
3644 * Intel: EAX - Core base frequency in MHz.
3645 * EBX - Core maximum frequency in MHz.
3646 * ECX - Bus (reference) frequency in MHz.
3647 * EDX - Reserved.
3648 * AMD: Reserved / undefined / not implemented.
3649 * VIA: Reserved / undefined / not implemented.
3650 * We zero this as we don't currently virtualize this.
3651 */
3652 cpumR3CpuIdZeroLeaf(pCpum, 22);
3653
3654 /* Cpuid 0x17..0x10000000: Unknown.
3655 * We don't know these and what they mean, so remove them. */
3656 cpumR3CpuIdRemoveRange(pCpum->GuestInfo.paCpuIdLeavesR3, &pCpum->GuestInfo.cCpuIdLeaves,
3657 UINT32_C(0x00000017), UINT32_C(0x0fffffff));
3658
3659
3660 /* CpuId 0x40000000..0x4fffffff: Reserved for hypervisor/emulator.
3661 * We remove all these as we're a hypervisor and must provide our own.
3662 */
3663 cpumR3CpuIdRemoveRange(pCpum->GuestInfo.paCpuIdLeavesR3, &pCpum->GuestInfo.cCpuIdLeaves,
3664 UINT32_C(0x40000000), UINT32_C(0x4fffffff));
3665
3666
3667 /* Cpuid 0x80000000 is harmless. */
3668
3669 /* Cpuid 0x80000001 is handled with cpuid 1 way up above. */
3670
3671 /* Cpuid 0x80000002...0x80000004 contains the processor name and is considered harmless. */
3672
3673 /* Cpuid 0x800000005 & 0x800000006 contain information about L1, L2 & L3 cache and TLB identifiers.
3674 * Safe to pass on to the guest.
3675 *
3676 * AMD: 0x800000005 L1 cache information
3677 * 0x800000006 L2/L3 cache information
3678 * Intel: 0x800000005 reserved
3679 * 0x800000006 L2 cache information
3680 * VIA: 0x800000005 TLB and L1 cache information
3681 * 0x800000006 L2 cache information
3682 */
3683
3684 /* Cpuid 0x800000007: Advanced Power Management Information.
3685 * AMD: EAX: Processor feedback capabilities.
3686 * EBX: RAS capabilites.
3687 * ECX: Advanced power monitoring interface.
3688 * EDX: Enhanced power management capabilities.
3689 * Intel: EAX, EBX, ECX - reserved.
3690 * EDX - Invariant TSC indicator supported (bit 8), the rest is reserved.
3691 * VIA: Reserved
3692 * We let the guest see EDX_TSCINVAR (and later maybe EDX_EFRO). Actually, we should set EDX_TSCINVAR.
3693 */
3694 uSubLeaf = 0;
3695 while ((pCurLeaf = cpumR3CpuIdGetExactLeaf(pCpum, UINT32_C(0x80000007), uSubLeaf)) != NULL)
3696 {
3697 pCurLeaf->uEax = pCurLeaf->uEbx = pCurLeaf->uEcx = 0;
3698 if ( pCpum->GuestFeatures.enmCpuVendor == CPUMCPUVENDOR_AMD
3699 || pCpum->GuestFeatures.enmCpuVendor == CPUMCPUVENDOR_HYGON)
3700 {
3701 /*
3702 * Older 64-bit linux kernels blindly assume that the AMD performance counters work
3703 * if X86_CPUID_AMD_ADVPOWER_EDX_TSCINVAR is set, see @bugref{7243#c85}. Exposing this
3704 * bit is now configurable.
3705 */
3706 pCurLeaf->uEdx &= 0
3707 //| X86_CPUID_AMD_ADVPOWER_EDX_TS
3708 //| X86_CPUID_AMD_ADVPOWER_EDX_FID
3709 //| X86_CPUID_AMD_ADVPOWER_EDX_VID
3710 //| X86_CPUID_AMD_ADVPOWER_EDX_TTP
3711 //| X86_CPUID_AMD_ADVPOWER_EDX_TM
3712 //| X86_CPUID_AMD_ADVPOWER_EDX_STC
3713 //| X86_CPUID_AMD_ADVPOWER_EDX_MC
3714 //| X86_CPUID_AMD_ADVPOWER_EDX_HWPSTATE
3715 | X86_CPUID_AMD_ADVPOWER_EDX_TSCINVAR
3716 //| X86_CPUID_AMD_ADVPOWER_EDX_CPB RT_BIT(9)
3717 //| X86_CPUID_AMD_ADVPOWER_EDX_EFRO RT_BIT(10)
3718 //| X86_CPUID_AMD_ADVPOWER_EDX_PFI RT_BIT(11)
3719 //| X86_CPUID_AMD_ADVPOWER_EDX_PA RT_BIT(12)
3720 | 0;
3721 }
3722 else
3723 pCurLeaf->uEdx &= X86_CPUID_AMD_ADVPOWER_EDX_TSCINVAR;
3724 if (!pConfig->fInvariantTsc)
3725 pCurLeaf->uEdx &= ~X86_CPUID_AMD_ADVPOWER_EDX_TSCINVAR;
3726 uSubLeaf++;
3727 }
3728
3729 /* Cpuid 0x80000008:
3730 * AMD: EBX, EDX - reserved
3731 * EAX: Virtual/Physical/Guest address Size
3732 * ECX: Number of cores + APICIdCoreIdSize
3733 * Intel: EAX: Virtual/Physical address Size
3734 * EBX, ECX, EDX - reserved
3735 * VIA: EAX: Virtual/Physical address Size
3736 * EBX, ECX, EDX - reserved
3737 *
3738 * We only expose the virtual+pysical address size to the guest atm.
3739 * On AMD we set the core count, but not the apic id stuff as we're
3740 * currently not doing the apic id assignments in a complatible manner.
3741 */
3742 uSubLeaf = 0;
3743 while ((pCurLeaf = cpumR3CpuIdGetExactLeaf(pCpum, UINT32_C(0x80000008), uSubLeaf)) != NULL)
3744 {
3745 pCurLeaf->uEax &= UINT32_C(0x0000ffff); /* Virtual & physical address sizes only. */
3746 pCurLeaf->uEbx = 0; /* reserved - [12] == IBPB */
3747 pCurLeaf->uEdx = 0; /* reserved */
3748
3749 /* Set APICIdCoreIdSize to zero (use legacy method to determine the number of cores per cpu).
3750 * Set core count to 0, indicating 1 core. Adjust if we're in multi core mode on AMD. */
3751 pCurLeaf->uEcx = 0;
3752#ifdef VBOX_WITH_MULTI_CORE
3753 if ( pVM->cCpus > 1
3754 && ( pCpum->GuestFeatures.enmCpuVendor == CPUMCPUVENDOR_AMD
3755 || pCpum->GuestFeatures.enmCpuVendor == CPUMCPUVENDOR_HYGON))
3756 pCurLeaf->uEcx |= (pVM->cCpus - 1) & UINT32_C(0xff);
3757#endif
3758 uSubLeaf++;
3759 }
3760
3761 /* Cpuid 0x80000009: Reserved
3762 * We zero this since we don't know what it may have been used for.
3763 */
3764 cpumR3CpuIdZeroLeaf(pCpum, UINT32_C(0x80000009));
3765
3766 /* Cpuid 0x8000000a: SVM information on AMD, invalid on Intel.
3767 * AMD: EAX - SVM revision.
3768 * EBX - Number of ASIDs.
3769 * ECX - Reserved.
3770 * EDX - SVM Feature identification.
3771 */
3772 if ( pCpum->GuestFeatures.enmCpuVendor == CPUMCPUVENDOR_AMD
3773 || pCpum->GuestFeatures.enmCpuVendor == CPUMCPUVENDOR_HYGON)
3774 {
3775 pExtFeatureLeaf = cpumR3CpuIdGetExactLeaf(pCpum, UINT32_C(0x80000001), 0);
3776 if ( pExtFeatureLeaf
3777 && (pExtFeatureLeaf->uEcx & X86_CPUID_AMD_FEATURE_ECX_SVM))
3778 {
3779 PCPUMCPUIDLEAF pSvmFeatureLeaf = cpumR3CpuIdGetExactLeaf(pCpum, 0x8000000a, 0);
3780 if (pSvmFeatureLeaf)
3781 {
3782 pSvmFeatureLeaf->uEax = 0x1;
3783 pSvmFeatureLeaf->uEbx = 0x8000; /** @todo figure out virtual NASID. */
3784 pSvmFeatureLeaf->uEcx = 0;
3785 pSvmFeatureLeaf->uEdx &= ( X86_CPUID_SVM_FEATURE_EDX_NRIP_SAVE /** @todo Support other SVM features */
3786 | X86_CPUID_SVM_FEATURE_EDX_FLUSH_BY_ASID
3787 | X86_CPUID_SVM_FEATURE_EDX_DECODE_ASSISTS);
3788 }
3789 else
3790 {
3791 /* Should never happen. */
3792 LogRel(("CPUM: Warning! Expected CPUID leaf 0x8000000a not present! SVM features not exposed to the guest\n"));
3793 cpumR3CpuIdZeroLeaf(pCpum, UINT32_C(0x8000000a));
3794 }
3795 }
3796 else
3797 {
3798 /* If SVM is not supported, this is reserved, zero out. */
3799 cpumR3CpuIdZeroLeaf(pCpum, UINT32_C(0x8000000a));
3800 }
3801 }
3802 else
3803 {
3804 /* Cpuid 0x8000000a: Reserved on Intel.
3805 * We zero this since we don't know what it may have been used for.
3806 */
3807 cpumR3CpuIdZeroLeaf(pCpum, UINT32_C(0x8000000a));
3808 }
3809
3810 /* Cpuid 0x8000000b thru 0x80000018: Reserved
3811 * We clear these as we don't know what purpose they might have. */
3812 for (uint32_t uLeaf = UINT32_C(0x8000000b); uLeaf <= UINT32_C(0x80000018); uLeaf++)
3813 cpumR3CpuIdZeroLeaf(pCpum, uLeaf);
3814
3815 /* Cpuid 0x80000019: TLB configuration
3816 * Seems to be harmless, pass them thru as is. */
3817
3818 /* Cpuid 0x8000001a: Peformance optimization identifiers.
3819 * Strip anything we don't know what is or addresses feature we don't implement. */
3820 uSubLeaf = 0;
3821 while ((pCurLeaf = cpumR3CpuIdGetExactLeaf(pCpum, UINT32_C(0x8000001a), uSubLeaf)) != NULL)
3822 {
3823 pCurLeaf->uEax &= RT_BIT_32(0) /* FP128 - use 1x128-bit instead of 2x64-bit. */
3824 | RT_BIT_32(1) /* MOVU - Prefere unaligned MOV over MOVL + MOVH. */
3825 //| RT_BIT_32(2) /* FP256 - use 1x256-bit instead of 2x128-bit. */
3826 ;
3827 pCurLeaf->uEbx = 0; /* reserved */
3828 pCurLeaf->uEcx = 0; /* reserved */
3829 pCurLeaf->uEdx = 0; /* reserved */
3830 uSubLeaf++;
3831 }
3832
3833 /* Cpuid 0x8000001b: Instruct based sampling (IBS) information.
3834 * Clear this as we don't currently virtualize this feature. */
3835 cpumR3CpuIdZeroLeaf(pCpum, UINT32_C(0x8000001b));
3836
3837 /* Cpuid 0x8000001c: Lightweight profiling (LWP) information.
3838 * Clear this as we don't currently virtualize this feature. */
3839 cpumR3CpuIdZeroLeaf(pCpum, UINT32_C(0x8000001c));
3840
3841 /* Cpuid 0x8000001d+ECX: Get cache configuration descriptors.
3842 * We need to sanitize the cores per cache (EAX[25:14]).
3843 *
3844 * This is very much the same as Intel's CPUID(4) leaf, except EAX[31:26]
3845 * and EDX[2] are reserved here, and EAX[14:25] is documented having a
3846 * slightly different meaning.
3847 */
3848 uSubLeaf = 0;
3849 while ((pCurLeaf = cpumR3CpuIdGetExactLeaf(pCpum, UINT32_C(0x8000001d), uSubLeaf)) != NULL)
3850 {
3851#ifdef VBOX_WITH_MULTI_CORE
3852 uint32_t cCores = ((pCurLeaf->uEax >> 14) & 0xfff) + 1;
3853 if (cCores > pVM->cCpus)
3854 cCores = pVM->cCpus;
3855 pCurLeaf->uEax &= UINT32_C(0x00003fff);
3856 pCurLeaf->uEax |= ((cCores - 1) & 0xfff) << 14;
3857#else
3858 pCurLeaf->uEax &= UINT32_C(0x00003fff);
3859#endif
3860 uSubLeaf++;
3861 }
3862
3863 /* Cpuid 0x8000001e: Get APIC / unit / node information.
3864 * If AMD, we configure it for our layout (on EMT(0)). In the multi-core
3865 * setup, we have one compute unit with all the cores in it. Single node.
3866 */
3867 uSubLeaf = 0;
3868 while ((pCurLeaf = cpumR3CpuIdGetExactLeaf(pCpum, UINT32_C(0x8000001e), uSubLeaf)) != NULL)
3869 {
3870 pCurLeaf->uEax = 0; /* Extended APIC ID = EMT(0).idApic (== 0). */
3871 if (pCurLeaf->fFlags & CPUMCPUIDLEAF_F_CONTAINS_APIC_ID)
3872 {
3873#ifdef VBOX_WITH_MULTI_CORE
3874 pCurLeaf->uEbx = pVM->cCpus < 0x100
3875 ? (pVM->cCpus - 1) << 8 : UINT32_C(0x0000ff00); /* Compute unit ID 0, core per unit. */
3876#else
3877 pCurLeaf->uEbx = 0; /* Compute unit ID 0, 1 core per unit. */
3878#endif
3879 pCurLeaf->uEcx = 0; /* Node ID 0, 1 node per CPU. */
3880 }
3881 else
3882 {
3883 Assert(pCpum->GuestFeatures.enmCpuVendor != CPUMCPUVENDOR_AMD);
3884 Assert(pCpum->GuestFeatures.enmCpuVendor != CPUMCPUVENDOR_HYGON);
3885 pCurLeaf->uEbx = 0; /* Reserved. */
3886 pCurLeaf->uEcx = 0; /* Reserved. */
3887 }
3888 pCurLeaf->uEdx = 0; /* Reserved. */
3889 uSubLeaf++;
3890 }
3891
3892 /* Cpuid 0x8000001f...0x8ffffffd: Unknown.
3893 * We don't know these and what they mean, so remove them. */
3894 cpumR3CpuIdRemoveRange(pCpum->GuestInfo.paCpuIdLeavesR3, &pCpum->GuestInfo.cCpuIdLeaves,
3895 UINT32_C(0x8000001f), UINT32_C(0x8ffffffd));
3896
3897 /* Cpuid 0x8ffffffe: Mystery AMD K6 leaf.
3898 * Just pass it thru for now. */
3899
3900 /* Cpuid 0x8fffffff: Mystery hammer time leaf!
3901 * Just pass it thru for now. */
3902
3903 /* Cpuid 0xc0000000: Centaur stuff.
3904 * Harmless, pass it thru. */
3905
3906 /* Cpuid 0xc0000001: Centaur features.
3907 * VIA: EAX - Family, model, stepping.
3908 * EDX - Centaur extended feature flags. Nothing interesting, except may
3909 * FEMMS (bit 5), but VIA marks it as 'reserved', so never mind.
3910 * EBX, ECX - reserved.
3911 * We keep EAX but strips the rest.
3912 */
3913 uSubLeaf = 0;
3914 while ((pCurLeaf = cpumR3CpuIdGetExactLeaf(pCpum, UINT32_C(0xc0000001), uSubLeaf)) != NULL)
3915 {
3916 pCurLeaf->uEbx = 0;
3917 pCurLeaf->uEcx = 0;
3918 pCurLeaf->uEdx = 0; /* Bits 0 thru 9 are documented on sandpil.org, but we don't want them, except maybe 5 (FEMMS). */
3919 uSubLeaf++;
3920 }
3921
3922 /* Cpuid 0xc0000002: Old Centaur Current Performance Data.
3923 * We only have fixed stale values, but should be harmless. */
3924
3925 /* Cpuid 0xc0000003: Reserved.
3926 * We zero this since we don't know what it may have been used for.
3927 */
3928 cpumR3CpuIdZeroLeaf(pCpum, UINT32_C(0xc0000003));
3929
3930 /* Cpuid 0xc0000004: Centaur Performance Info.
3931 * We only have fixed stale values, but should be harmless. */
3932
3933
3934 /* Cpuid 0xc0000005...0xcfffffff: Unknown.
3935 * We don't know these and what they mean, so remove them. */
3936 cpumR3CpuIdRemoveRange(pCpum->GuestInfo.paCpuIdLeavesR3, &pCpum->GuestInfo.cCpuIdLeaves,
3937 UINT32_C(0xc0000005), UINT32_C(0xcfffffff));
3938
3939 return VINF_SUCCESS;
3940#undef PORTABLE_DISABLE_FEATURE_BIT
3941#undef PORTABLE_CLEAR_BITS_WHEN
3942}
3943
3944
3945/**
3946 * Reads a value in /CPUM/IsaExts/ node.
3947 *
3948 * @returns VBox status code (error message raised).
3949 * @param pVM The cross context VM structure. (For errors.)
3950 * @param pIsaExts The /CPUM/IsaExts node (can be NULL).
3951 * @param pszValueName The value / extension name.
3952 * @param penmValue Where to return the choice.
3953 * @param enmDefault The default choice.
3954 */
3955static int cpumR3CpuIdReadIsaExtCfg(PVM pVM, PCFGMNODE pIsaExts, const char *pszValueName,
3956 CPUMISAEXTCFG *penmValue, CPUMISAEXTCFG enmDefault)
3957{
3958 /*
3959 * Try integer encoding first.
3960 */
3961 uint64_t uValue;
3962 int rc = CFGMR3QueryInteger(pIsaExts, pszValueName, &uValue);
3963 if (RT_SUCCESS(rc))
3964 switch (uValue)
3965 {
3966 case 0: *penmValue = CPUMISAEXTCFG_DISABLED; break;
3967 case 1: *penmValue = CPUMISAEXTCFG_ENABLED_SUPPORTED; break;
3968 case 2: *penmValue = CPUMISAEXTCFG_ENABLED_ALWAYS; break;
3969 case 9: *penmValue = CPUMISAEXTCFG_ENABLED_PORTABLE; break;
3970 default:
3971 return VMSetError(pVM, VERR_CPUM_INVALID_CONFIG_VALUE, RT_SRC_POS,
3972 "Invalid config value for '/CPUM/IsaExts/%s': %llu (expected 0/'disabled', 1/'enabled', 2/'portable', or 9/'forced')",
3973 pszValueName, uValue);
3974 }
3975 /*
3976 * If missing, use default.
3977 */
3978 else if (rc == VERR_CFGM_VALUE_NOT_FOUND || rc == VERR_CFGM_NO_PARENT)
3979 *penmValue = enmDefault;
3980 else
3981 {
3982 if (rc == VERR_CFGM_NOT_INTEGER)
3983 {
3984 /*
3985 * Not an integer, try read it as a string.
3986 */
3987 char szValue[32];
3988 rc = CFGMR3QueryString(pIsaExts, pszValueName, szValue, sizeof(szValue));
3989 if (RT_SUCCESS(rc))
3990 {
3991 RTStrToLower(szValue);
3992 size_t cchValue = strlen(szValue);
3993#define EQ(a_str) (cchValue == sizeof(a_str) - 1U && memcmp(szValue, a_str, sizeof(a_str) - 1))
3994 if ( EQ("disabled") || EQ("disable") || EQ("off") || EQ("no"))
3995 *penmValue = CPUMISAEXTCFG_DISABLED;
3996 else if (EQ("enabled") || EQ("enable") || EQ("on") || EQ("yes"))
3997 *penmValue = CPUMISAEXTCFG_ENABLED_SUPPORTED;
3998 else if (EQ("forced") || EQ("force") || EQ("always"))
3999 *penmValue = CPUMISAEXTCFG_ENABLED_ALWAYS;
4000 else if (EQ("portable"))
4001 *penmValue = CPUMISAEXTCFG_ENABLED_PORTABLE;
4002 else if (EQ("default") || EQ("def"))
4003 *penmValue = enmDefault;
4004 else
4005 return VMSetError(pVM, VERR_CPUM_INVALID_CONFIG_VALUE, RT_SRC_POS,
4006 "Invalid config value for '/CPUM/IsaExts/%s': '%s' (expected 0/'disabled', 1/'enabled', 2/'portable', or 9/'forced')",
4007 pszValueName, uValue);
4008#undef EQ
4009 }
4010 }
4011 if (RT_FAILURE(rc))
4012 return VMSetError(pVM, rc, RT_SRC_POS, "Error reading config value '/CPUM/IsaExts/%s': %Rrc", pszValueName, rc);
4013 }
4014 return VINF_SUCCESS;
4015}
4016
4017
4018/**
4019 * Reads a value in /CPUM/IsaExts/ node, forcing it to DISABLED if wanted.
4020 *
4021 * @returns VBox status code (error message raised).
4022 * @param pVM The cross context VM structure. (For errors.)
4023 * @param pIsaExts The /CPUM/IsaExts node (can be NULL).
4024 * @param pszValueName The value / extension name.
4025 * @param penmValue Where to return the choice.
4026 * @param enmDefault The default choice.
4027 * @param fAllowed Allowed choice. Applied both to the result and to
4028 * the default value.
4029 */
4030static int cpumR3CpuIdReadIsaExtCfgEx(PVM pVM, PCFGMNODE pIsaExts, const char *pszValueName,
4031 CPUMISAEXTCFG *penmValue, CPUMISAEXTCFG enmDefault, bool fAllowed)
4032{
4033 int rc;
4034 if (fAllowed)
4035 rc = cpumR3CpuIdReadIsaExtCfg(pVM, pIsaExts, pszValueName, penmValue, enmDefault);
4036 else
4037 {
4038 rc = cpumR3CpuIdReadIsaExtCfg(pVM, pIsaExts, pszValueName, penmValue, false /*enmDefault*/);
4039 if (RT_SUCCESS(rc) && *penmValue == CPUMISAEXTCFG_ENABLED_ALWAYS)
4040 LogRel(("CPUM: Ignoring forced '%s'\n", pszValueName));
4041 *penmValue = CPUMISAEXTCFG_DISABLED;
4042 }
4043 return rc;
4044}
4045
4046
4047/**
4048 * Reads a value in /CPUM/IsaExts/ node that used to be located in /CPUM/.
4049 *
4050 * @returns VBox status code (error message raised).
4051 * @param pVM The cross context VM structure. (For errors.)
4052 * @param pIsaExts The /CPUM/IsaExts node (can be NULL).
4053 * @param pCpumCfg The /CPUM node (can be NULL).
4054 * @param pszValueName The value / extension name.
4055 * @param penmValue Where to return the choice.
4056 * @param enmDefault The default choice.
4057 */
4058static int cpumR3CpuIdReadIsaExtCfgLegacy(PVM pVM, PCFGMNODE pIsaExts, PCFGMNODE pCpumCfg, const char *pszValueName,
4059 CPUMISAEXTCFG *penmValue, CPUMISAEXTCFG enmDefault)
4060{
4061 if (CFGMR3Exists(pCpumCfg, pszValueName))
4062 {
4063 if (!CFGMR3Exists(pIsaExts, pszValueName))
4064 LogRel(("Warning: /CPUM/%s is deprecated, use /CPUM/IsaExts/%s instead.\n", pszValueName, pszValueName));
4065 else
4066 return VMSetError(pVM, VERR_DUPLICATE, RT_SRC_POS,
4067 "Duplicate config values '/CPUM/%s' and '/CPUM/IsaExts/%s' - please remove the former!",
4068 pszValueName, pszValueName);
4069
4070 bool fLegacy;
4071 int rc = CFGMR3QueryBoolDef(pCpumCfg, pszValueName, &fLegacy, enmDefault != CPUMISAEXTCFG_DISABLED);
4072 if (RT_SUCCESS(rc))
4073 {
4074 *penmValue = fLegacy;
4075 return VINF_SUCCESS;
4076 }
4077 return VMSetError(pVM, VERR_DUPLICATE, RT_SRC_POS, "Error querying '/CPUM/%s': %Rrc", pszValueName, rc);
4078 }
4079
4080 return cpumR3CpuIdReadIsaExtCfg(pVM, pIsaExts, pszValueName, penmValue, enmDefault);
4081}
4082
4083
4084static int cpumR3CpuIdReadConfig(PVM pVM, PCPUMCPUIDCONFIG pConfig, PCFGMNODE pCpumCfg, bool fNestedPagingAndFullGuestExec)
4085{
4086 int rc;
4087
4088 /** @cfgm{/CPUM/PortableCpuIdLevel, 8-bit, 0, 3, 0}
4089 * When non-zero CPUID features that could cause portability issues will be
4090 * stripped. The higher the value the more features gets stripped. Higher
4091 * values should only be used when older CPUs are involved since it may
4092 * harm performance and maybe also cause problems with specific guests. */
4093 rc = CFGMR3QueryU8Def(pCpumCfg, "PortableCpuIdLevel", &pVM->cpum.s.u8PortableCpuIdLevel, 0);
4094 AssertLogRelRCReturn(rc, rc);
4095
4096 /** @cfgm{/CPUM/GuestCpuName, string}
4097 * The name of the CPU we're to emulate. The default is the host CPU.
4098 * Note! CPUs other than "host" one is currently unsupported. */
4099 rc = CFGMR3QueryStringDef(pCpumCfg, "GuestCpuName", pConfig->szCpuName, sizeof(pConfig->szCpuName), "host");
4100 AssertLogRelRCReturn(rc, rc);
4101
4102 /** @cfgm{/CPUM/NT4LeafLimit, boolean, false}
4103 * Limit the number of standard CPUID leaves to 0..3 to prevent NT4 from
4104 * bugchecking with MULTIPROCESSOR_CONFIGURATION_NOT_SUPPORTED (0x3e).
4105 * This option corresponds somewhat to IA32_MISC_ENABLES.BOOT_NT4[bit 22].
4106 */
4107 rc = CFGMR3QueryBoolDef(pCpumCfg, "NT4LeafLimit", &pConfig->fNt4LeafLimit, false);
4108 AssertLogRelRCReturn(rc, rc);
4109
4110 /** @cfgm{/CPUM/InvariantTsc, boolean, true}
4111 * Pass-through the invariant TSC flag in 0x80000007 if available on the host
4112 * CPU. On AMD CPUs, users may wish to suppress it to avoid trouble from older
4113 * 64-bit linux guests which assume the presence of AMD performance counters
4114 * that we do not virtualize.
4115 */
4116 rc = CFGMR3QueryBoolDef(pCpumCfg, "InvariantTsc", &pConfig->fInvariantTsc, true);
4117 AssertLogRelRCReturn(rc, rc);
4118
4119 /** @cfgm{/CPUM/ForceVme, boolean, false}
4120 * Always expose the VME (Virtual-8086 Mode Extensions) capability if true.
4121 * By default the flag is passed thru as is from the host CPU, except
4122 * on AMD Ryzen CPUs where it's masked to avoid trouble with XP/Server 2003
4123 * guests and DOS boxes in general.
4124 */
4125 rc = CFGMR3QueryBoolDef(pCpumCfg, "ForceVme", &pConfig->fForceVme, false);
4126 AssertLogRelRCReturn(rc, rc);
4127
4128 /** @cfgm{/CPUM/MaxIntelFamilyModelStep, uint32_t, UINT32_MAX}
4129 * Restrict the reported CPU family+model+stepping of intel CPUs. This is
4130 * probably going to be a temporary hack, so don't depend on this.
4131 * The 1st byte of the value is the stepping, the 2nd byte value is the model
4132 * number and the 3rd byte value is the family, and the 4th value must be zero.
4133 */
4134 rc = CFGMR3QueryU32Def(pCpumCfg, "MaxIntelFamilyModelStep", &pConfig->uMaxIntelFamilyModelStep, UINT32_MAX);
4135 AssertLogRelRCReturn(rc, rc);
4136
4137 /** @cfgm{/CPUM/MaxStdLeaf, uint32_t, 0x00000016}
4138 * The last standard leaf to keep. The actual last value that is stored in EAX
4139 * is RT_MAX(CPUID[0].EAX,/CPUM/MaxStdLeaf). Leaves beyond the max leaf are
4140 * removed. (This works independently of and differently from NT4LeafLimit.)
4141 * The default is usually set to what we're able to reasonably sanitize.
4142 */
4143 rc = CFGMR3QueryU32Def(pCpumCfg, "MaxStdLeaf", &pConfig->uMaxStdLeaf, UINT32_C(0x00000016));
4144 AssertLogRelRCReturn(rc, rc);
4145
4146 /** @cfgm{/CPUM/MaxExtLeaf, uint32_t, 0x8000001e}
4147 * The last extended leaf to keep. The actual last value that is stored in EAX
4148 * is RT_MAX(CPUID[0x80000000].EAX,/CPUM/MaxStdLeaf). Leaves beyond the max
4149 * leaf are removed. The default is set to what we're able to sanitize.
4150 */
4151 rc = CFGMR3QueryU32Def(pCpumCfg, "MaxExtLeaf", &pConfig->uMaxExtLeaf, UINT32_C(0x8000001e));
4152 AssertLogRelRCReturn(rc, rc);
4153
4154 /** @cfgm{/CPUM/MaxCentaurLeaf, uint32_t, 0xc0000004}
4155 * The last extended leaf to keep. The actual last value that is stored in EAX
4156 * is RT_MAX(CPUID[0xc0000000].EAX,/CPUM/MaxCentaurLeaf). Leaves beyond the max
4157 * leaf are removed. The default is set to what we're able to sanitize.
4158 */
4159 rc = CFGMR3QueryU32Def(pCpumCfg, "MaxCentaurLeaf", &pConfig->uMaxCentaurLeaf, UINT32_C(0xc0000004));
4160 AssertLogRelRCReturn(rc, rc);
4161
4162 bool fQueryNestedHwvirt = false
4163#ifdef VBOX_WITH_NESTED_HWVIRT_SVM
4164 || pVM->cpum.s.HostFeatures.enmCpuVendor == CPUMCPUVENDOR_AMD
4165 || pVM->cpum.s.HostFeatures.enmCpuVendor == CPUMCPUVENDOR_HYGON
4166#endif
4167#ifdef VBOX_WITH_NESTED_HWVIRT_VMX
4168 || pVM->cpum.s.HostFeatures.enmCpuVendor == CPUMCPUVENDOR_INTEL
4169 || pVM->cpum.s.HostFeatures.enmCpuVendor == CPUMCPUVENDOR_VIA
4170#endif
4171 ;
4172 if (fQueryNestedHwvirt)
4173 {
4174 /** @cfgm{/CPUM/NestedHWVirt, bool, false}
4175 * Whether to expose the hardware virtualization (VMX/SVM) feature to the guest.
4176 * The default is false, and when enabled requires a 64-bit CPU with support for
4177 * nested-paging and AMD-V or unrestricted guest mode.
4178 */
4179 rc = CFGMR3QueryBoolDef(pCpumCfg, "NestedHWVirt", &pConfig->fNestedHWVirt, false);
4180 AssertLogRelRCReturn(rc, rc);
4181 if ( pConfig->fNestedHWVirt
4182 && !fNestedPagingAndFullGuestExec)
4183 return VMSetError(pVM, VERR_CPUM_INVALID_HWVIRT_CONFIG, RT_SRC_POS,
4184 "Cannot enable nested VT-x/AMD-V without nested-paging and unresricted guest execution!\n");
4185
4186 /** @todo Think about enabling this later with NEM/KVM. */
4187 if ( pConfig->fNestedHWVirt
4188 && VM_IS_NEM_ENABLED(pVM))
4189 {
4190 LogRel(("CPUM: WARNING! Can't turn on nested VT-x/AMD-V when NEM is used!\n"));
4191 pConfig->fNestedHWVirt = false;
4192 }
4193
4194 /** @cfgm{/CPUM/NestedVmxPreemptTimer, bool, true}
4195 * Whether to expose the VMX-preemption timer feature to the guest (if also
4196 * supported by the host hardware). The default is true, and when disabled will
4197 * prevent exposing the VMX-preemption timer feature to the guest even if the host
4198 * supports it.
4199 */
4200 rc = CFGMR3QueryBoolDef(pCpumCfg, "NestedVmxPreemptTimer", &pVM->cpum.s.fNestedVmxPreemptTimer, true);
4201 AssertLogRelRCReturn(rc, rc);
4202 }
4203
4204 /*
4205 * Instruction Set Architecture (ISA) Extensions.
4206 */
4207 PCFGMNODE pIsaExts = CFGMR3GetChild(pCpumCfg, "IsaExts");
4208 if (pIsaExts)
4209 {
4210 rc = CFGMR3ValidateConfig(pIsaExts, "/CPUM/IsaExts/",
4211 "CMPXCHG16B"
4212 "|MONITOR"
4213 "|MWaitExtensions"
4214 "|SSE4.1"
4215 "|SSE4.2"
4216 "|XSAVE"
4217 "|AVX"
4218 "|AVX2"
4219 "|AESNI"
4220 "|PCLMUL"
4221 "|POPCNT"
4222 "|MOVBE"
4223 "|RDRAND"
4224 "|RDSEED"
4225 "|CLFLUSHOPT"
4226 "|FSGSBASE"
4227 "|PCID"
4228 "|INVPCID"
4229 "|FlushCmdMsr"
4230 "|ABM"
4231 "|SSE4A"
4232 "|MISALNSSE"
4233 "|3DNOWPRF"
4234 "|AXMMX"
4235 , "" /*pszValidNodes*/, "CPUM" /*pszWho*/, 0 /*uInstance*/);
4236 if (RT_FAILURE(rc))
4237 return rc;
4238 }
4239
4240 /** @cfgm{/CPUM/IsaExts/CMPXCHG16B, boolean, depends}
4241 * Expose CMPXCHG16B to the guest if supported by the host. For the time
4242 * being the default is to only do this for VMs with nested paging and AMD-V or
4243 * unrestricted guest mode.
4244 */
4245 rc = cpumR3CpuIdReadIsaExtCfgLegacy(pVM, pIsaExts, pCpumCfg, "CMPXCHG16B", &pConfig->enmCmpXchg16b, fNestedPagingAndFullGuestExec);
4246 AssertLogRelRCReturn(rc, rc);
4247
4248 /** @cfgm{/CPUM/IsaExts/MONITOR, boolean, true}
4249 * Expose MONITOR/MWAIT instructions to the guest.
4250 */
4251 rc = cpumR3CpuIdReadIsaExtCfgLegacy(pVM, pIsaExts, pCpumCfg, "MONITOR", &pConfig->enmMonitor, true);
4252 AssertLogRelRCReturn(rc, rc);
4253
4254 /** @cfgm{/CPUM/IsaExts/MWaitExtensions, boolean, false}
4255 * Expose MWAIT extended features to the guest. For now we expose just MWAIT
4256 * break on interrupt feature (bit 1).
4257 */
4258 rc = cpumR3CpuIdReadIsaExtCfgLegacy(pVM, pIsaExts, pCpumCfg, "MWaitExtensions", &pConfig->enmMWaitExtensions, false);
4259 AssertLogRelRCReturn(rc, rc);
4260
4261 /** @cfgm{/CPUM/IsaExts/SSE4.1, boolean, true}
4262 * Expose SSE4.1 to the guest if available.
4263 */
4264 rc = cpumR3CpuIdReadIsaExtCfgLegacy(pVM, pIsaExts, pCpumCfg, "SSE4.1", &pConfig->enmSse41, true);
4265 AssertLogRelRCReturn(rc, rc);
4266
4267 /** @cfgm{/CPUM/IsaExts/SSE4.2, boolean, true}
4268 * Expose SSE4.2 to the guest if available.
4269 */
4270 rc = cpumR3CpuIdReadIsaExtCfgLegacy(pVM, pIsaExts, pCpumCfg, "SSE4.2", &pConfig->enmSse42, true);
4271 AssertLogRelRCReturn(rc, rc);
4272
4273 bool const fMayHaveXSave = fNestedPagingAndFullGuestExec
4274 && pVM->cpum.s.HostFeatures.fXSaveRstor
4275 && pVM->cpum.s.HostFeatures.fOpSysXSaveRstor;
4276 uint64_t const fXStateHostMask = pVM->cpum.s.fXStateHostMask;
4277
4278 /** @cfgm{/CPUM/IsaExts/XSAVE, boolean, depends}
4279 * Expose XSAVE/XRSTOR to the guest if available. For the time being the
4280 * default is to only expose this to VMs with nested paging and AMD-V or
4281 * unrestricted guest execution mode. Not possible to force this one without
4282 * host support at the moment.
4283 */
4284 rc = cpumR3CpuIdReadIsaExtCfgEx(pVM, pIsaExts, "XSAVE", &pConfig->enmXSave, fNestedPagingAndFullGuestExec,
4285 fMayHaveXSave /*fAllowed*/);
4286 AssertLogRelRCReturn(rc, rc);
4287
4288 /** @cfgm{/CPUM/IsaExts/AVX, boolean, depends}
4289 * Expose the AVX instruction set extensions to the guest if available and
4290 * XSAVE is exposed too. For the time being the default is to only expose this
4291 * to VMs with nested paging and AMD-V or unrestricted guest execution mode.
4292 */
4293 rc = cpumR3CpuIdReadIsaExtCfgEx(pVM, pIsaExts, "AVX", &pConfig->enmAvx, fNestedPagingAndFullGuestExec,
4294 fMayHaveXSave && pConfig->enmXSave && (fXStateHostMask & XSAVE_C_YMM) /*fAllowed*/);
4295 AssertLogRelRCReturn(rc, rc);
4296
4297 /** @cfgm{/CPUM/IsaExts/AVX2, boolean, depends}
4298 * Expose the AVX2 instruction set extensions to the guest if available and
4299 * XSAVE is exposed too. For the time being the default is to only expose this
4300 * to VMs with nested paging and AMD-V or unrestricted guest execution mode.
4301 */
4302 rc = cpumR3CpuIdReadIsaExtCfgEx(pVM, pIsaExts, "AVX2", &pConfig->enmAvx2, fNestedPagingAndFullGuestExec /* temporarily */,
4303 fMayHaveXSave && pConfig->enmXSave && (fXStateHostMask & XSAVE_C_YMM) /*fAllowed*/);
4304 AssertLogRelRCReturn(rc, rc);
4305
4306 /** @cfgm{/CPUM/IsaExts/AESNI, isaextcfg, depends}
4307 * Whether to expose the AES instructions to the guest. For the time being the
4308 * default is to only do this for VMs with nested paging and AMD-V or
4309 * unrestricted guest mode.
4310 */
4311 rc = cpumR3CpuIdReadIsaExtCfg(pVM, pIsaExts, "AESNI", &pConfig->enmAesNi, fNestedPagingAndFullGuestExec);
4312 AssertLogRelRCReturn(rc, rc);
4313
4314 /** @cfgm{/CPUM/IsaExts/PCLMUL, isaextcfg, depends}
4315 * Whether to expose the PCLMULQDQ instructions to the guest. For the time
4316 * being the default is to only do this for VMs with nested paging and AMD-V or
4317 * unrestricted guest mode.
4318 */
4319 rc = cpumR3CpuIdReadIsaExtCfg(pVM, pIsaExts, "PCLMUL", &pConfig->enmPClMul, fNestedPagingAndFullGuestExec);
4320 AssertLogRelRCReturn(rc, rc);
4321
4322 /** @cfgm{/CPUM/IsaExts/POPCNT, isaextcfg, depends}
4323 * Whether to expose the POPCNT instructions to the guest. For the time
4324 * being the default is to only do this for VMs with nested paging and AMD-V or
4325 * unrestricted guest mode.
4326 */
4327 rc = cpumR3CpuIdReadIsaExtCfg(pVM, pIsaExts, "POPCNT", &pConfig->enmPopCnt, fNestedPagingAndFullGuestExec);
4328 AssertLogRelRCReturn(rc, rc);
4329
4330 /** @cfgm{/CPUM/IsaExts/MOVBE, isaextcfg, depends}
4331 * Whether to expose the MOVBE instructions to the guest. For the time
4332 * being the default is to only do this for VMs with nested paging and AMD-V or
4333 * unrestricted guest mode.
4334 */
4335 rc = cpumR3CpuIdReadIsaExtCfg(pVM, pIsaExts, "MOVBE", &pConfig->enmMovBe, fNestedPagingAndFullGuestExec);
4336 AssertLogRelRCReturn(rc, rc);
4337
4338 /** @cfgm{/CPUM/IsaExts/RDRAND, isaextcfg, depends}
4339 * Whether to expose the RDRAND instructions to the guest. For the time being
4340 * the default is to only do this for VMs with nested paging and AMD-V or
4341 * unrestricted guest mode.
4342 */
4343 rc = cpumR3CpuIdReadIsaExtCfg(pVM, pIsaExts, "RDRAND", &pConfig->enmRdRand, fNestedPagingAndFullGuestExec);
4344 AssertLogRelRCReturn(rc, rc);
4345
4346 /** @cfgm{/CPUM/IsaExts/RDSEED, isaextcfg, depends}
4347 * Whether to expose the RDSEED instructions to the guest. For the time being
4348 * the default is to only do this for VMs with nested paging and AMD-V or
4349 * unrestricted guest mode.
4350 */
4351 rc = cpumR3CpuIdReadIsaExtCfg(pVM, pIsaExts, "RDSEED", &pConfig->enmRdSeed, fNestedPagingAndFullGuestExec);
4352 AssertLogRelRCReturn(rc, rc);
4353
4354 /** @cfgm{/CPUM/IsaExts/CLFLUSHOPT, isaextcfg, depends}
4355 * Whether to expose the CLFLUSHOPT instructions to the guest. For the time
4356 * being the default is to only do this for VMs with nested paging and AMD-V or
4357 * unrestricted guest mode.
4358 */
4359 rc = cpumR3CpuIdReadIsaExtCfg(pVM, pIsaExts, "CLFLUSHOPT", &pConfig->enmCLFlushOpt, fNestedPagingAndFullGuestExec);
4360 AssertLogRelRCReturn(rc, rc);
4361
4362 /** @cfgm{/CPUM/IsaExts/FSGSBASE, isaextcfg, true}
4363 * Whether to expose the read/write FSGSBASE instructions to the guest.
4364 */
4365 rc = cpumR3CpuIdReadIsaExtCfg(pVM, pIsaExts, "FSGSBASE", &pConfig->enmFsGsBase, true);
4366 AssertLogRelRCReturn(rc, rc);
4367
4368 /** @cfgm{/CPUM/IsaExts/PCID, isaextcfg, true}
4369 * Whether to expose the PCID feature to the guest.
4370 */
4371 rc = cpumR3CpuIdReadIsaExtCfg(pVM, pIsaExts, "PCID", &pConfig->enmPcid, pConfig->enmFsGsBase);
4372 AssertLogRelRCReturn(rc, rc);
4373
4374 /** @cfgm{/CPUM/IsaExts/INVPCID, isaextcfg, true}
4375 * Whether to expose the INVPCID instruction to the guest.
4376 */
4377 rc = cpumR3CpuIdReadIsaExtCfg(pVM, pIsaExts, "INVPCID", &pConfig->enmInvpcid, pConfig->enmFsGsBase);
4378 AssertLogRelRCReturn(rc, rc);
4379
4380 /** @cfgm{/CPUM/IsaExts/FlushCmdMsr, isaextcfg, true}
4381 * Whether to expose the IA32_FLUSH_CMD MSR to the guest.
4382 */
4383 rc = cpumR3CpuIdReadIsaExtCfg(pVM, pIsaExts, "FlushCmdMsr", &pConfig->enmFlushCmdMsr, CPUMISAEXTCFG_ENABLED_SUPPORTED);
4384 AssertLogRelRCReturn(rc, rc);
4385
4386 /** @cfgm{/CPUM/IsaExts/MdsClear, isaextcfg, true}
4387 * Whether to advertise the VERW and MDS related IA32_FLUSH_CMD MSR bits to
4388 * the guest. Requires FlushCmdMsr to be present too.
4389 */
4390 rc = cpumR3CpuIdReadIsaExtCfg(pVM, pIsaExts, "MdsClear", &pConfig->enmMdsClear, CPUMISAEXTCFG_ENABLED_SUPPORTED);
4391 AssertLogRelRCReturn(rc, rc);
4392
4393 /** @cfgm{/CPUM/IsaExts/ArchCapMSr, isaextcfg, true}
4394 * Whether to expose the MSR_IA32_ARCH_CAPABILITIES MSR to the guest.
4395 */
4396 rc = cpumR3CpuIdReadIsaExtCfg(pVM, pIsaExts, "ArchCapMsr", &pConfig->enmArchCapMsr, CPUMISAEXTCFG_ENABLED_SUPPORTED);
4397 AssertLogRelRCReturn(rc, rc);
4398
4399
4400 /* AMD: */
4401
4402 /** @cfgm{/CPUM/IsaExts/ABM, isaextcfg, depends}
4403 * Whether to expose the AMD ABM instructions to the guest. For the time
4404 * being the default is to only do this for VMs with nested paging and AMD-V or
4405 * unrestricted guest mode.
4406 */
4407 rc = cpumR3CpuIdReadIsaExtCfg(pVM, pIsaExts, "ABM", &pConfig->enmAbm, fNestedPagingAndFullGuestExec);
4408 AssertLogRelRCReturn(rc, rc);
4409
4410 /** @cfgm{/CPUM/IsaExts/SSE4A, isaextcfg, depends}
4411 * Whether to expose the AMD SSE4A instructions to the guest. For the time
4412 * being the default is to only do this for VMs with nested paging and AMD-V or
4413 * unrestricted guest mode.
4414 */
4415 rc = cpumR3CpuIdReadIsaExtCfg(pVM, pIsaExts, "SSE4A", &pConfig->enmSse4A, fNestedPagingAndFullGuestExec);
4416 AssertLogRelRCReturn(rc, rc);
4417
4418 /** @cfgm{/CPUM/IsaExts/MISALNSSE, isaextcfg, depends}
4419 * Whether to expose the AMD MisAlSse feature (MXCSR flag 17) to the guest. For
4420 * the time being the default is to only do this for VMs with nested paging and
4421 * AMD-V or unrestricted guest mode.
4422 */
4423 rc = cpumR3CpuIdReadIsaExtCfg(pVM, pIsaExts, "MISALNSSE", &pConfig->enmMisAlnSse, fNestedPagingAndFullGuestExec);
4424 AssertLogRelRCReturn(rc, rc);
4425
4426 /** @cfgm{/CPUM/IsaExts/3DNOWPRF, isaextcfg, depends}
4427 * Whether to expose the AMD 3D Now! prefetch instructions to the guest.
4428 * For the time being the default is to only do this for VMs with nested paging
4429 * and AMD-V or unrestricted guest mode.
4430 */
4431 rc = cpumR3CpuIdReadIsaExtCfg(pVM, pIsaExts, "3DNOWPRF", &pConfig->enm3dNowPrf, fNestedPagingAndFullGuestExec);
4432 AssertLogRelRCReturn(rc, rc);
4433
4434 /** @cfgm{/CPUM/IsaExts/AXMMX, isaextcfg, depends}
4435 * Whether to expose the AMD's MMX Extensions to the guest. For the time being
4436 * the default is to only do this for VMs with nested paging and AMD-V or
4437 * unrestricted guest mode.
4438 */
4439 rc = cpumR3CpuIdReadIsaExtCfg(pVM, pIsaExts, "AXMMX", &pConfig->enmAmdExtMmx, fNestedPagingAndFullGuestExec);
4440 AssertLogRelRCReturn(rc, rc);
4441
4442 return VINF_SUCCESS;
4443}
4444
4445
4446/**
4447 * Initializes the emulated CPU's CPUID & MSR information.
4448 *
4449 * @returns VBox status code.
4450 * @param pVM The cross context VM structure.
4451 * @param pHostMsrs Pointer to the host MSRs.
4452 */
4453int cpumR3InitCpuIdAndMsrs(PVM pVM, PCCPUMMSRS pHostMsrs)
4454{
4455 Assert(pHostMsrs);
4456
4457 PCPUM pCpum = &pVM->cpum.s;
4458 PCFGMNODE pCpumCfg = CFGMR3GetChild(CFGMR3GetRoot(pVM), "CPUM");
4459
4460 /*
4461 * Set the fCpuIdApicFeatureVisible flags so the APIC can assume visibility
4462 * on construction and manage everything from here on.
4463 */
4464 for (VMCPUID idCpu = 0; idCpu < pVM->cCpus; idCpu++)
4465 {
4466 PVMCPU pVCpu = pVM->apCpusR3[idCpu];
4467 pVCpu->cpum.s.fCpuIdApicFeatureVisible = true;
4468 }
4469
4470 /*
4471 * Read the configuration.
4472 */
4473 CPUMCPUIDCONFIG Config;
4474 RT_ZERO(Config);
4475
4476 int rc = cpumR3CpuIdReadConfig(pVM, &Config, pCpumCfg, HMAreNestedPagingAndFullGuestExecEnabled(pVM));
4477 AssertRCReturn(rc, rc);
4478
4479 /*
4480 * Get the guest CPU data from the database and/or the host.
4481 *
4482 * The CPUID and MSRs are currently living on the regular heap to avoid
4483 * fragmenting the hyper heap (and because there isn't/wasn't any realloc
4484 * API for the hyper heap). This means special cleanup considerations.
4485 */
4486 rc = cpumR3DbGetCpuInfo(Config.szCpuName, &pCpum->GuestInfo);
4487 if (RT_FAILURE(rc))
4488 return rc == VERR_CPUM_DB_CPU_NOT_FOUND
4489 ? VMSetError(pVM, rc, RT_SRC_POS,
4490 "Info on guest CPU '%s' could not be found. Please, select a different CPU.", Config.szCpuName)
4491 : rc;
4492
4493 if (pCpum->GuestInfo.fMxCsrMask & ~pVM->cpum.s.fHostMxCsrMask)
4494 {
4495 LogRel(("Stripping unsupported MXCSR bits from guest mask: %#x -> %#x (host: %#x)\n", pCpum->GuestInfo.fMxCsrMask,
4496 pCpum->GuestInfo.fMxCsrMask & pVM->cpum.s.fHostMxCsrMask, pVM->cpum.s.fHostMxCsrMask));
4497 pCpum->GuestInfo.fMxCsrMask &= pVM->cpum.s.fHostMxCsrMask;
4498 }
4499 LogRel(("CPUM: MXCSR_MASK=%#x (host: %#x)\n", pCpum->GuestInfo.fMxCsrMask, pVM->cpum.s.fHostMxCsrMask));
4500
4501 /** @cfgm{/CPUM/MSRs/[Name]/[First|Last|Type|Value|...],}
4502 * Overrides the guest MSRs.
4503 */
4504 rc = cpumR3LoadMsrOverrides(pVM, CFGMR3GetChild(pCpumCfg, "MSRs"));
4505
4506 /** @cfgm{/CPUM/HostCPUID/[000000xx|800000xx|c000000x]/[eax|ebx|ecx|edx],32-bit}
4507 * Overrides the CPUID leaf values (from the host CPU usually) used for
4508 * calculating the guest CPUID leaves. This can be used to preserve the CPUID
4509 * values when moving a VM to a different machine. Another use is restricting
4510 * (or extending) the feature set exposed to the guest. */
4511 if (RT_SUCCESS(rc))
4512 rc = cpumR3LoadCpuIdOverrides(pVM, CFGMR3GetChild(pCpumCfg, "HostCPUID"), "HostCPUID");
4513
4514 if (RT_SUCCESS(rc) && CFGMR3GetChild(pCpumCfg, "CPUID")) /* 2nd override, now discontinued. */
4515 rc = VMSetError(pVM, VERR_CFGM_CONFIG_UNKNOWN_NODE, RT_SRC_POS,
4516 "Found unsupported configuration node '/CPUM/CPUID/'. "
4517 "Please use IMachine::setCPUIDLeaf() instead.");
4518
4519 CPUMMSRS GuestMsrs;
4520 RT_ZERO(GuestMsrs);
4521
4522 /*
4523 * Pre-explode the CPUID info.
4524 */
4525 if (RT_SUCCESS(rc))
4526 {
4527 rc = cpumR3CpuIdExplodeFeatures(pCpum->GuestInfo.paCpuIdLeavesR3, pCpum->GuestInfo.cCpuIdLeaves, &GuestMsrs,
4528 &pCpum->GuestFeatures);
4529 }
4530
4531 /*
4532 * Sanitize the cpuid information passed on to the guest.
4533 */
4534 if (RT_SUCCESS(rc))
4535 {
4536 rc = cpumR3CpuIdSanitize(pVM, pCpum, &Config);
4537 if (RT_SUCCESS(rc))
4538 {
4539 cpumR3CpuIdLimitLeaves(pCpum, &Config);
4540 cpumR3CpuIdLimitIntelFamModStep(pCpum, &Config);
4541 }
4542 }
4543
4544 /*
4545 * Setup MSRs introduced in microcode updates or that are otherwise not in
4546 * the CPU profile, but are advertised in the CPUID info we just sanitized.
4547 */
4548 if (RT_SUCCESS(rc))
4549 rc = cpumR3MsrReconcileWithCpuId(pVM);
4550 /*
4551 * MSR fudging.
4552 */
4553 if (RT_SUCCESS(rc))
4554 {
4555 /** @cfgm{/CPUM/FudgeMSRs, boolean, true}
4556 * Fudges some common MSRs if not present in the selected CPU database entry.
4557 * This is for trying to keep VMs running when moved between different hosts
4558 * and different CPU vendors. */
4559 bool fEnable;
4560 rc = CFGMR3QueryBoolDef(pCpumCfg, "FudgeMSRs", &fEnable, true); AssertRC(rc);
4561 if (RT_SUCCESS(rc) && fEnable)
4562 {
4563 rc = cpumR3MsrApplyFudge(pVM);
4564 AssertLogRelRC(rc);
4565 }
4566 }
4567 if (RT_SUCCESS(rc))
4568 {
4569 /*
4570 * Move the MSR and CPUID arrays over on the hypervisor heap, and explode
4571 * guest CPU features again.
4572 */
4573 void *pvFree = pCpum->GuestInfo.paCpuIdLeavesR3;
4574 int rc1 = cpumR3CpuIdInstallAndExplodeLeaves(pVM, pCpum, pCpum->GuestInfo.paCpuIdLeavesR3,
4575 pCpum->GuestInfo.cCpuIdLeaves, &GuestMsrs);
4576 RTMemFree(pvFree);
4577
4578 pvFree = pCpum->GuestInfo.paMsrRangesR3;
4579 int rc2 = MMHyperDupMem(pVM, pvFree,
4580 sizeof(pCpum->GuestInfo.paMsrRangesR3[0]) * pCpum->GuestInfo.cMsrRanges, 32,
4581 MM_TAG_CPUM_MSRS, (void **)&pCpum->GuestInfo.paMsrRangesR3);
4582 RTMemFree(pvFree);
4583 AssertLogRelRCReturn(rc1, rc1);
4584 AssertLogRelRCReturn(rc2, rc2);
4585
4586 pCpum->GuestInfo.paMsrRangesR0 = MMHyperR3ToR0(pVM, pCpum->GuestInfo.paMsrRangesR3);
4587
4588 /*
4589 * Finally, initialize guest VMX MSRs.
4590 *
4591 * This needs to be done -after- exploding guest features and sanitizing CPUID leaves
4592 * as constructing VMX capabilities MSRs rely on CPU feature bits like long mode,
4593 * unrestricted-guest execution, CR4 feature bits and possibly more in the future.
4594 */
4595 if (pVM->cpum.s.GuestFeatures.fVmx)
4596 {
4597 Assert(Config.fNestedHWVirt);
4598 cpumR3InitVmxGuestFeaturesAndMsrs(pVM, &pHostMsrs->hwvirt.vmx, &GuestMsrs.hwvirt.vmx);
4599
4600 /* Copy MSRs to all VCPUs */
4601 PCVMXMSRS pVmxMsrs = &GuestMsrs.hwvirt.vmx;
4602 for (VMCPUID idCpu = 0; idCpu < pVM->cCpus; idCpu++)
4603 {
4604 PVMCPU pVCpu = pVM->apCpusR3[idCpu];
4605 memcpy(&pVCpu->cpum.s.Guest.hwvirt.vmx.Msrs, pVmxMsrs, sizeof(*pVmxMsrs));
4606 }
4607 }
4608
4609 /*
4610 * Some more configuration that we're applying at the end of everything
4611 * via the CPUMR3SetGuestCpuIdFeature API.
4612 */
4613
4614 /* Check if PAE was explicitely enabled by the user. */
4615 bool fEnable;
4616 rc = CFGMR3QueryBoolDef(CFGMR3GetRoot(pVM), "EnablePAE", &fEnable, false);
4617 AssertRCReturn(rc, rc);
4618 if (fEnable)
4619 CPUMR3SetGuestCpuIdFeature(pVM, CPUMCPUIDFEATURE_PAE);
4620
4621 /* We don't normally enable NX for raw-mode, so give the user a chance to force it on. */
4622 rc = CFGMR3QueryBoolDef(pCpumCfg, "EnableNX", &fEnable, false);
4623 AssertRCReturn(rc, rc);
4624 if (fEnable)
4625 CPUMR3SetGuestCpuIdFeature(pVM, CPUMCPUIDFEATURE_NX);
4626
4627 /* Check if speculation control is enabled. */
4628 rc = CFGMR3QueryBoolDef(pCpumCfg, "SpecCtrl", &fEnable, false);
4629 AssertRCReturn(rc, rc);
4630 if (fEnable)
4631 CPUMR3SetGuestCpuIdFeature(pVM, CPUMCPUIDFEATURE_SPEC_CTRL);
4632 else
4633 {
4634 /*
4635 * Set the "SSBD-not-needed" flag to work around a bug in some Linux kernels when the VIRT_SPEC_CTL
4636 * feature is not exposed on AMD CPUs and there is only 1 vCPU configured.
4637 * This was observed with kernel "4.15.0-29-generic #31~16.04.1-Ubuntu" but more versions are likely affected.
4638 *
4639 * The kernel doesn't initialize a lock and causes a NULL pointer exception later on when configuring SSBD:
4640 * EIP: _raw_spin_lock+0x14/0x30
4641 * EFLAGS: 00010046 CPU: 0
4642 * EAX: 00000000 EBX: 00000001 ECX: 00000004 EDX: 00000000
4643 * ESI: 00000000 EDI: 00000000 EBP: ee023f1c ESP: ee023f18
4644 * DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
4645 * CR0: 80050033 CR2: 00000004 CR3: 3671c180 CR4: 000006f0
4646 * Call Trace:
4647 * speculative_store_bypass_update+0x8e/0x180
4648 * ssb_prctl_set+0xc0/0xe0
4649 * arch_seccomp_spec_mitigate+0x1d/0x20
4650 * do_seccomp+0x3cb/0x610
4651 * SyS_seccomp+0x16/0x20
4652 * do_fast_syscall_32+0x7f/0x1d0
4653 * entry_SYSENTER_32+0x4e/0x7c
4654 *
4655 * The lock would've been initialized in process.c:speculative_store_bypass_ht_init() called from two places in smpboot.c.
4656 * First when a secondary CPU is started and second in native_smp_prepare_cpus() which is not called in a single vCPU environment.
4657 *
4658 * As spectre control features are completely disabled anyway when we arrived here there is no harm done in informing the
4659 * guest to not even try.
4660 */
4661 if ( pVM->cpum.s.GuestFeatures.enmCpuVendor == CPUMCPUVENDOR_AMD
4662 || pVM->cpum.s.GuestFeatures.enmCpuVendor == CPUMCPUVENDOR_HYGON)
4663 {
4664 PCPUMCPUIDLEAF pLeaf = cpumR3CpuIdGetExactLeaf(&pVM->cpum.s, UINT32_C(0x80000008), 0);
4665 if (pLeaf)
4666 {
4667 pLeaf->uEbx |= X86_CPUID_AMD_EFEID_EBX_NO_SSBD_REQUIRED;
4668 LogRel(("CPUM: Set SSBD not required flag for AMD to work around some buggy Linux kernels!\n"));
4669 }
4670 }
4671 }
4672
4673 return VINF_SUCCESS;
4674 }
4675
4676 /*
4677 * Failed before switching to hyper heap.
4678 */
4679 RTMemFree(pCpum->GuestInfo.paCpuIdLeavesR3);
4680 pCpum->GuestInfo.paCpuIdLeavesR3 = NULL;
4681 RTMemFree(pCpum->GuestInfo.paMsrRangesR3);
4682 pCpum->GuestInfo.paMsrRangesR3 = NULL;
4683 return rc;
4684}
4685
4686
4687/**
4688 * Sets a CPUID feature bit during VM initialization.
4689 *
4690 * Since the CPUID feature bits are generally related to CPU features, other
4691 * CPUM configuration like MSRs can also be modified by calls to this API.
4692 *
4693 * @param pVM The cross context VM structure.
4694 * @param enmFeature The feature to set.
4695 */
4696VMMR3_INT_DECL(void) CPUMR3SetGuestCpuIdFeature(PVM pVM, CPUMCPUIDFEATURE enmFeature)
4697{
4698 PCPUMCPUIDLEAF pLeaf;
4699 PCPUMMSRRANGE pMsrRange;
4700
4701 switch (enmFeature)
4702 {
4703 /*
4704 * Set the APIC bit in both feature masks.
4705 */
4706 case CPUMCPUIDFEATURE_APIC:
4707 pLeaf = cpumCpuIdGetLeaf(pVM, UINT32_C(0x00000001));
4708 if (pLeaf && (pLeaf->fFlags & CPUMCPUIDLEAF_F_CONTAINS_APIC))
4709 pVM->cpum.s.aGuestCpuIdPatmStd[1].uEdx = pLeaf->uEdx |= X86_CPUID_FEATURE_EDX_APIC;
4710
4711 pLeaf = cpumCpuIdGetLeaf(pVM, UINT32_C(0x80000001));
4712 if (pLeaf && (pLeaf->fFlags & CPUMCPUIDLEAF_F_CONTAINS_APIC))
4713 pVM->cpum.s.aGuestCpuIdPatmExt[1].uEdx = pLeaf->uEdx |= X86_CPUID_AMD_FEATURE_EDX_APIC;
4714
4715 pVM->cpum.s.GuestFeatures.fApic = 1;
4716
4717 /* Make sure we've got the APICBASE MSR present. */
4718 pMsrRange = cpumLookupMsrRange(pVM, MSR_IA32_APICBASE);
4719 if (!pMsrRange)
4720 {
4721 static CPUMMSRRANGE const s_ApicBase =
4722 {
4723 /*.uFirst =*/ MSR_IA32_APICBASE, /*.uLast =*/ MSR_IA32_APICBASE,
4724 /*.enmRdFn =*/ kCpumMsrRdFn_Ia32ApicBase, /*.enmWrFn =*/ kCpumMsrWrFn_Ia32ApicBase,
4725 /*.offCpumCpu =*/ UINT16_MAX, /*.fReserved =*/ 0, /*.uValue =*/ 0, /*.fWrIgnMask =*/ 0, /*.fWrGpMask =*/ 0,
4726 /*.szName = */ "IA32_APIC_BASE"
4727 };
4728 int rc = CPUMR3MsrRangesInsert(pVM, &s_ApicBase);
4729 AssertLogRelRC(rc);
4730 }
4731
4732 LogRel(("CPUM: SetGuestCpuIdFeature: Enabled xAPIC\n"));
4733 break;
4734
4735 /*
4736 * Set the x2APIC bit in the standard feature mask.
4737 * Note! ASSUMES CPUMCPUIDFEATURE_APIC is called first.
4738 */
4739 case CPUMCPUIDFEATURE_X2APIC:
4740 pLeaf = cpumCpuIdGetLeaf(pVM, UINT32_C(0x00000001));
4741 if (pLeaf)
4742 pVM->cpum.s.aGuestCpuIdPatmStd[1].uEcx = pLeaf->uEcx |= X86_CPUID_FEATURE_ECX_X2APIC;
4743 pVM->cpum.s.GuestFeatures.fX2Apic = 1;
4744
4745 /* Make sure the MSR doesn't GP or ignore the EXTD bit. */
4746 pMsrRange = cpumLookupMsrRange(pVM, MSR_IA32_APICBASE);
4747 if (pMsrRange)
4748 {
4749 pMsrRange->fWrGpMask &= ~MSR_IA32_APICBASE_EXTD;
4750 pMsrRange->fWrIgnMask &= ~MSR_IA32_APICBASE_EXTD;
4751 }
4752
4753 LogRel(("CPUM: SetGuestCpuIdFeature: Enabled x2APIC\n"));
4754 break;
4755
4756 /*
4757 * Set the sysenter/sysexit bit in the standard feature mask.
4758 * Assumes the caller knows what it's doing! (host must support these)
4759 */
4760 case CPUMCPUIDFEATURE_SEP:
4761 if (!pVM->cpum.s.HostFeatures.fSysEnter)
4762 {
4763 AssertMsgFailed(("ERROR: Can't turn on SEP when the host doesn't support it!!\n"));
4764 return;
4765 }
4766
4767 pLeaf = cpumCpuIdGetLeaf(pVM, UINT32_C(0x00000001));
4768 if (pLeaf)
4769 pVM->cpum.s.aGuestCpuIdPatmStd[1].uEdx = pLeaf->uEdx |= X86_CPUID_FEATURE_EDX_SEP;
4770 pVM->cpum.s.GuestFeatures.fSysEnter = 1;
4771 LogRel(("CPUM: SetGuestCpuIdFeature: Enabled SYSENTER/EXIT\n"));
4772 break;
4773
4774 /*
4775 * Set the syscall/sysret bit in the extended feature mask.
4776 * Assumes the caller knows what it's doing! (host must support these)
4777 */
4778 case CPUMCPUIDFEATURE_SYSCALL:
4779 pLeaf = cpumCpuIdGetLeaf(pVM, UINT32_C(0x80000001));
4780 if ( !pLeaf
4781 || !pVM->cpum.s.HostFeatures.fSysCall)
4782 {
4783 LogRel(("CPUM: WARNING! Can't turn on SYSCALL/SYSRET when the host doesn't support it!\n"));
4784 return;
4785 }
4786
4787 /* Valid for both Intel and AMD CPUs, although only in 64 bits mode for Intel. */
4788 pVM->cpum.s.aGuestCpuIdPatmExt[1].uEdx = pLeaf->uEdx |= X86_CPUID_EXT_FEATURE_EDX_SYSCALL;
4789 pVM->cpum.s.GuestFeatures.fSysCall = 1;
4790 LogRel(("CPUM: SetGuestCpuIdFeature: Enabled SYSCALL/RET\n"));
4791 break;
4792
4793 /*
4794 * Set the PAE bit in both feature masks.
4795 * Assumes the caller knows what it's doing! (host must support these)
4796 */
4797 case CPUMCPUIDFEATURE_PAE:
4798 if (!pVM->cpum.s.HostFeatures.fPae)
4799 {
4800 LogRel(("CPUM: WARNING! Can't turn on PAE when the host doesn't support it!\n"));
4801 return;
4802 }
4803
4804 pLeaf = cpumCpuIdGetLeaf(pVM, UINT32_C(0x00000001));
4805 if (pLeaf)
4806 pVM->cpum.s.aGuestCpuIdPatmStd[1].uEdx = pLeaf->uEdx |= X86_CPUID_FEATURE_EDX_PAE;
4807
4808 pLeaf = cpumCpuIdGetLeaf(pVM, UINT32_C(0x80000001));
4809 if ( pLeaf
4810 && ( pVM->cpum.s.GuestFeatures.enmCpuVendor == CPUMCPUVENDOR_AMD
4811 || pVM->cpum.s.GuestFeatures.enmCpuVendor == CPUMCPUVENDOR_HYGON))
4812 pVM->cpum.s.aGuestCpuIdPatmExt[1].uEdx = pLeaf->uEdx |= X86_CPUID_AMD_FEATURE_EDX_PAE;
4813
4814 pVM->cpum.s.GuestFeatures.fPae = 1;
4815 LogRel(("CPUM: SetGuestCpuIdFeature: Enabled PAE\n"));
4816 break;
4817
4818 /*
4819 * Set the LONG MODE bit in the extended feature mask.
4820 * Assumes the caller knows what it's doing! (host must support these)
4821 */
4822 case CPUMCPUIDFEATURE_LONG_MODE:
4823 pLeaf = cpumCpuIdGetLeaf(pVM, UINT32_C(0x80000001));
4824 if ( !pLeaf
4825 || !pVM->cpum.s.HostFeatures.fLongMode)
4826 {
4827 LogRel(("CPUM: WARNING! Can't turn on LONG MODE when the host doesn't support it!\n"));
4828 return;
4829 }
4830
4831 /* Valid for both Intel and AMD. */
4832 pVM->cpum.s.aGuestCpuIdPatmExt[1].uEdx = pLeaf->uEdx |= X86_CPUID_EXT_FEATURE_EDX_LONG_MODE;
4833 pVM->cpum.s.GuestFeatures.fLongMode = 1;
4834 pVM->cpum.s.GuestFeatures.cVmxMaxPhysAddrWidth = pVM->cpum.s.GuestFeatures.cMaxPhysAddrWidth;
4835 if (pVM->cpum.s.GuestFeatures.fVmx)
4836 for (VMCPUID idCpu = 0; idCpu < pVM->cCpus; idCpu++)
4837 {
4838 PVMCPU pVCpu = pVM->apCpusR3[idCpu];
4839 pVCpu->cpum.s.Guest.hwvirt.vmx.Msrs.u64Basic &= ~VMX_BASIC_PHYSADDR_WIDTH_32BIT;
4840 }
4841 LogRel(("CPUM: SetGuestCpuIdFeature: Enabled LONG MODE\n"));
4842 break;
4843
4844 /*
4845 * Set the NX/XD bit in the extended feature mask.
4846 * Assumes the caller knows what it's doing! (host must support these)
4847 */
4848 case CPUMCPUIDFEATURE_NX:
4849 pLeaf = cpumCpuIdGetLeaf(pVM, UINT32_C(0x80000001));
4850 if ( !pLeaf
4851 || !pVM->cpum.s.HostFeatures.fNoExecute)
4852 {
4853 LogRel(("CPUM: WARNING! Can't turn on NX/XD when the host doesn't support it!\n"));
4854 return;
4855 }
4856
4857 /* Valid for both Intel and AMD. */
4858 pVM->cpum.s.aGuestCpuIdPatmExt[1].uEdx = pLeaf->uEdx |= X86_CPUID_EXT_FEATURE_EDX_NX;
4859 pVM->cpum.s.GuestFeatures.fNoExecute = 1;
4860 LogRel(("CPUM: SetGuestCpuIdFeature: Enabled NX\n"));
4861 break;
4862
4863
4864 /*
4865 * Set the LAHF/SAHF support in 64-bit mode.
4866 * Assumes the caller knows what it's doing! (host must support this)
4867 */
4868 case CPUMCPUIDFEATURE_LAHF:
4869 pLeaf = cpumCpuIdGetLeaf(pVM, UINT32_C(0x80000001));
4870 if ( !pLeaf
4871 || !pVM->cpum.s.HostFeatures.fLahfSahf)
4872 {
4873 LogRel(("CPUM: WARNING! Can't turn on LAHF/SAHF when the host doesn't support it!\n"));
4874 return;
4875 }
4876
4877 /* Valid for both Intel and AMD. */
4878 pVM->cpum.s.aGuestCpuIdPatmExt[1].uEcx = pLeaf->uEcx |= X86_CPUID_EXT_FEATURE_ECX_LAHF_SAHF;
4879 pVM->cpum.s.GuestFeatures.fLahfSahf = 1;
4880 LogRel(("CPUM: SetGuestCpuIdFeature: Enabled LAHF/SAHF\n"));
4881 break;
4882
4883 /*
4884 * Set the page attribute table bit. This is alternative page level
4885 * cache control that doesn't much matter when everything is
4886 * virtualized, though it may when passing thru device memory.
4887 */
4888 case CPUMCPUIDFEATURE_PAT:
4889 pLeaf = cpumCpuIdGetLeaf(pVM, UINT32_C(0x00000001));
4890 if (pLeaf)
4891 pVM->cpum.s.aGuestCpuIdPatmStd[1].uEdx = pLeaf->uEdx |= X86_CPUID_FEATURE_EDX_PAT;
4892
4893 pLeaf = cpumCpuIdGetLeaf(pVM, UINT32_C(0x80000001));
4894 if ( pLeaf
4895 && ( pVM->cpum.s.GuestFeatures.enmCpuVendor == CPUMCPUVENDOR_AMD
4896 || pVM->cpum.s.GuestFeatures.enmCpuVendor == CPUMCPUVENDOR_HYGON))
4897 pVM->cpum.s.aGuestCpuIdPatmExt[1].uEdx = pLeaf->uEdx |= X86_CPUID_AMD_FEATURE_EDX_PAT;
4898
4899 pVM->cpum.s.GuestFeatures.fPat = 1;
4900 LogRel(("CPUM: SetGuestCpuIdFeature: Enabled PAT\n"));
4901 break;
4902
4903 /*
4904 * Set the RDTSCP support bit.
4905 * Assumes the caller knows what it's doing! (host must support this)
4906 */
4907 case CPUMCPUIDFEATURE_RDTSCP:
4908 pLeaf = cpumCpuIdGetLeaf(pVM, UINT32_C(0x80000001));
4909 if ( !pLeaf
4910 || !pVM->cpum.s.HostFeatures.fRdTscP
4911 || pVM->cpum.s.u8PortableCpuIdLevel > 0)
4912 {
4913 if (!pVM->cpum.s.u8PortableCpuIdLevel)
4914 LogRel(("CPUM: WARNING! Can't turn on RDTSCP when the host doesn't support it!\n"));
4915 return;
4916 }
4917
4918 /* Valid for both Intel and AMD. */
4919 pVM->cpum.s.aGuestCpuIdPatmExt[1].uEdx = pLeaf->uEdx |= X86_CPUID_EXT_FEATURE_EDX_RDTSCP;
4920 pVM->cpum.s.HostFeatures.fRdTscP = 1;
4921 LogRel(("CPUM: SetGuestCpuIdFeature: Enabled RDTSCP.\n"));
4922 break;
4923
4924 /*
4925 * Set the Hypervisor Present bit in the standard feature mask.
4926 */
4927 case CPUMCPUIDFEATURE_HVP:
4928 pLeaf = cpumCpuIdGetLeaf(pVM, UINT32_C(0x00000001));
4929 if (pLeaf)
4930 pVM->cpum.s.aGuestCpuIdPatmStd[1].uEcx = pLeaf->uEcx |= X86_CPUID_FEATURE_ECX_HVP;
4931 pVM->cpum.s.GuestFeatures.fHypervisorPresent = 1;
4932 LogRel(("CPUM: SetGuestCpuIdFeature: Enabled Hypervisor Present bit\n"));
4933 break;
4934
4935 /*
4936 * Set the MWAIT Extensions Present bit in the MWAIT/MONITOR leaf.
4937 * This currently includes the Present bit and MWAITBREAK bit as well.
4938 */
4939 case CPUMCPUIDFEATURE_MWAIT_EXTS:
4940 pLeaf = cpumCpuIdGetLeaf(pVM, UINT32_C(0x00000005));
4941 if ( !pLeaf
4942 || !pVM->cpum.s.HostFeatures.fMWaitExtensions)
4943 {
4944 LogRel(("CPUM: WARNING! Can't turn on MWAIT Extensions when the host doesn't support it!\n"));
4945 return;
4946 }
4947
4948 /* Valid for both Intel and AMD. */
4949 pVM->cpum.s.aGuestCpuIdPatmStd[5].uEcx = pLeaf->uEcx |= X86_CPUID_MWAIT_ECX_EXT | X86_CPUID_MWAIT_ECX_BREAKIRQIF0;
4950 pVM->cpum.s.GuestFeatures.fMWaitExtensions = 1;
4951 LogRel(("CPUM: SetGuestCpuIdFeature: Enabled MWAIT Extensions.\n"));
4952 break;
4953
4954 /*
4955 * Set up the speculation control CPUID bits and MSRs. This is quite complicated
4956 * on Intel CPUs, and different on AMDs.
4957 */
4958 case CPUMCPUIDFEATURE_SPEC_CTRL:
4959 if (pVM->cpum.s.GuestFeatures.enmCpuVendor == CPUMCPUVENDOR_INTEL)
4960 {
4961 pLeaf = cpumR3CpuIdGetExactLeaf(&pVM->cpum.s, UINT32_C(0x00000007), 0);
4962 if ( !pLeaf
4963 || !(pVM->cpum.s.HostFeatures.fIbpb || pVM->cpum.s.HostFeatures.fIbrs))
4964 {
4965 LogRel(("CPUM: WARNING! Can't turn on Speculation Control when the host doesn't support it!\n"));
4966 return;
4967 }
4968
4969 /* The feature can be enabled. Let's see what we can actually do. */
4970 pVM->cpum.s.GuestFeatures.fSpeculationControl = 1;
4971
4972 /* We will only expose STIBP if IBRS is present to keep things simpler (simple is not an option). */
4973 if (pVM->cpum.s.HostFeatures.fIbrs)
4974 {
4975 pLeaf->uEdx |= X86_CPUID_STEXT_FEATURE_EDX_IBRS_IBPB;
4976 pVM->cpum.s.GuestFeatures.fIbrs = 1;
4977 if (pVM->cpum.s.HostFeatures.fStibp)
4978 {
4979 pLeaf->uEdx |= X86_CPUID_STEXT_FEATURE_EDX_STIBP;
4980 pVM->cpum.s.GuestFeatures.fStibp = 1;
4981 }
4982
4983 /* Make sure we have the speculation control MSR... */
4984 pMsrRange = cpumLookupMsrRange(pVM, MSR_IA32_SPEC_CTRL);
4985 if (!pMsrRange)
4986 {
4987 static CPUMMSRRANGE const s_SpecCtrl =
4988 {
4989 /*.uFirst =*/ MSR_IA32_SPEC_CTRL, /*.uLast =*/ MSR_IA32_SPEC_CTRL,
4990 /*.enmRdFn =*/ kCpumMsrRdFn_Ia32SpecCtrl, /*.enmWrFn =*/ kCpumMsrWrFn_Ia32SpecCtrl,
4991 /*.offCpumCpu =*/ UINT16_MAX, /*.fReserved =*/ 0, /*.uValue =*/ 0, /*.fWrIgnMask =*/ 0, /*.fWrGpMask =*/ 0,
4992 /*.szName = */ "IA32_SPEC_CTRL"
4993 };
4994 int rc = CPUMR3MsrRangesInsert(pVM, &s_SpecCtrl);
4995 AssertLogRelRC(rc);
4996 }
4997
4998 /* ... and the predictor command MSR. */
4999 pMsrRange = cpumLookupMsrRange(pVM, MSR_IA32_PRED_CMD);
5000 if (!pMsrRange)
5001 {
5002 /** @todo incorrect fWrGpMask. */
5003 static CPUMMSRRANGE const s_SpecCtrl =
5004 {
5005 /*.uFirst =*/ MSR_IA32_PRED_CMD, /*.uLast =*/ MSR_IA32_PRED_CMD,
5006 /*.enmRdFn =*/ kCpumMsrRdFn_WriteOnly, /*.enmWrFn =*/ kCpumMsrWrFn_Ia32PredCmd,
5007 /*.offCpumCpu =*/ UINT16_MAX, /*.fReserved =*/ 0, /*.uValue =*/ 0, /*.fWrIgnMask =*/ 0, /*.fWrGpMask =*/ 0,
5008 /*.szName = */ "IA32_PRED_CMD"
5009 };
5010 int rc = CPUMR3MsrRangesInsert(pVM, &s_SpecCtrl);
5011 AssertLogRelRC(rc);
5012 }
5013
5014 }
5015
5016 if (pVM->cpum.s.HostFeatures.fArchCap)
5017 {
5018 /* Install the architectural capabilities MSR. */
5019 pMsrRange = cpumLookupMsrRange(pVM, MSR_IA32_ARCH_CAPABILITIES);
5020 if (!pMsrRange)
5021 {
5022 static CPUMMSRRANGE const s_ArchCaps =
5023 {
5024 /*.uFirst =*/ MSR_IA32_ARCH_CAPABILITIES, /*.uLast =*/ MSR_IA32_ARCH_CAPABILITIES,
5025 /*.enmRdFn =*/ kCpumMsrRdFn_Ia32ArchCapabilities, /*.enmWrFn =*/ kCpumMsrWrFn_ReadOnly,
5026 /*.offCpumCpu =*/ UINT16_MAX, /*.fReserved =*/ 0, /*.uValue =*/ 0, /*.fWrIgnMask =*/ 0, /*.fWrGpMask =*/ UINT64_MAX,
5027 /*.szName = */ "IA32_ARCH_CAPABILITIES"
5028 };
5029 int rc = CPUMR3MsrRangesInsert(pVM, &s_ArchCaps);
5030 AssertLogRelRC(rc);
5031 }
5032
5033 /* Advertise IBRS_ALL if present at this point... */
5034 if (pVM->cpum.s.HostFeatures.fArchCap & MSR_IA32_ARCH_CAP_F_IBRS_ALL)
5035 VMCC_FOR_EACH_VMCPU_STMT(pVM, pVCpu->cpum.s.GuestMsrs.msr.ArchCaps |= MSR_IA32_ARCH_CAP_F_IBRS_ALL);
5036 }
5037
5038 LogRel(("CPUM: SetGuestCpuIdFeature: Enabled Speculation Control.\n"));
5039 }
5040 else if ( pVM->cpum.s.GuestFeatures.enmCpuVendor == CPUMCPUVENDOR_AMD
5041 || pVM->cpum.s.GuestFeatures.enmCpuVendor == CPUMCPUVENDOR_HYGON)
5042 {
5043 /* The precise details of AMD's implementation are not yet clear. */
5044 }
5045 break;
5046
5047 default:
5048 AssertMsgFailed(("enmFeature=%d\n", enmFeature));
5049 break;
5050 }
5051
5052 /** @todo can probably kill this as this API is now init time only... */
5053 for (VMCPUID idCpu = 0; idCpu < pVM->cCpus; idCpu++)
5054 {
5055 PVMCPU pVCpu = pVM->apCpusR3[idCpu];
5056 pVCpu->cpum.s.fChanged |= CPUM_CHANGED_CPUID;
5057 }
5058}
5059
5060
5061/**
5062 * Queries a CPUID feature bit.
5063 *
5064 * @returns boolean for feature presence
5065 * @param pVM The cross context VM structure.
5066 * @param enmFeature The feature to query.
5067 * @deprecated Use the cpum.ro.GuestFeatures directly instead.
5068 */
5069VMMR3_INT_DECL(bool) CPUMR3GetGuestCpuIdFeature(PVM pVM, CPUMCPUIDFEATURE enmFeature)
5070{
5071 switch (enmFeature)
5072 {
5073 case CPUMCPUIDFEATURE_APIC: return pVM->cpum.s.GuestFeatures.fApic;
5074 case CPUMCPUIDFEATURE_X2APIC: return pVM->cpum.s.GuestFeatures.fX2Apic;
5075 case CPUMCPUIDFEATURE_SYSCALL: return pVM->cpum.s.GuestFeatures.fSysCall;
5076 case CPUMCPUIDFEATURE_SEP: return pVM->cpum.s.GuestFeatures.fSysEnter;
5077 case CPUMCPUIDFEATURE_PAE: return pVM->cpum.s.GuestFeatures.fPae;
5078 case CPUMCPUIDFEATURE_NX: return pVM->cpum.s.GuestFeatures.fNoExecute;
5079 case CPUMCPUIDFEATURE_LAHF: return pVM->cpum.s.GuestFeatures.fLahfSahf;
5080 case CPUMCPUIDFEATURE_LONG_MODE: return pVM->cpum.s.GuestFeatures.fLongMode;
5081 case CPUMCPUIDFEATURE_PAT: return pVM->cpum.s.GuestFeatures.fPat;
5082 case CPUMCPUIDFEATURE_RDTSCP: return pVM->cpum.s.GuestFeatures.fRdTscP;
5083 case CPUMCPUIDFEATURE_HVP: return pVM->cpum.s.GuestFeatures.fHypervisorPresent;
5084 case CPUMCPUIDFEATURE_MWAIT_EXTS: return pVM->cpum.s.GuestFeatures.fMWaitExtensions;
5085 case CPUMCPUIDFEATURE_SPEC_CTRL: return pVM->cpum.s.GuestFeatures.fSpeculationControl;
5086
5087 case CPUMCPUIDFEATURE_INVALID:
5088 case CPUMCPUIDFEATURE_32BIT_HACK:
5089 break;
5090 }
5091 AssertFailed();
5092 return false;
5093}
5094
5095
5096/**
5097 * Clears a CPUID feature bit.
5098 *
5099 * @param pVM The cross context VM structure.
5100 * @param enmFeature The feature to clear.
5101 *
5102 * @deprecated Probably better to default the feature to disabled and only allow
5103 * setting (enabling) it during construction.
5104 */
5105VMMR3_INT_DECL(void) CPUMR3ClearGuestCpuIdFeature(PVM pVM, CPUMCPUIDFEATURE enmFeature)
5106{
5107 PCPUMCPUIDLEAF pLeaf;
5108 switch (enmFeature)
5109 {
5110 case CPUMCPUIDFEATURE_APIC:
5111 Assert(!pVM->cpum.s.GuestFeatures.fApic); /* We only expect this call during init. No MSR adjusting needed. */
5112 pLeaf = cpumCpuIdGetLeaf(pVM, UINT32_C(0x00000001));
5113 if (pLeaf)
5114 pVM->cpum.s.aGuestCpuIdPatmStd[1].uEdx = pLeaf->uEdx &= ~X86_CPUID_FEATURE_EDX_APIC;
5115
5116 pLeaf = cpumCpuIdGetLeaf(pVM, UINT32_C(0x80000001));
5117 if (pLeaf && (pLeaf->fFlags & CPUMCPUIDLEAF_F_CONTAINS_APIC))
5118 pVM->cpum.s.aGuestCpuIdPatmExt[1].uEdx = pLeaf->uEdx &= ~X86_CPUID_AMD_FEATURE_EDX_APIC;
5119
5120 pVM->cpum.s.GuestFeatures.fApic = 0;
5121 Log(("CPUM: ClearGuestCpuIdFeature: Disabled xAPIC\n"));
5122 break;
5123
5124 case CPUMCPUIDFEATURE_X2APIC:
5125 Assert(!pVM->cpum.s.GuestFeatures.fX2Apic); /* We only expect this call during init. No MSR adjusting needed. */
5126 pLeaf = cpumCpuIdGetLeaf(pVM, UINT32_C(0x00000001));
5127 if (pLeaf)
5128 pVM->cpum.s.aGuestCpuIdPatmStd[1].uEcx = pLeaf->uEcx &= ~X86_CPUID_FEATURE_ECX_X2APIC;
5129 pVM->cpum.s.GuestFeatures.fX2Apic = 0;
5130 Log(("CPUM: ClearGuestCpuIdFeature: Disabled x2APIC\n"));
5131 break;
5132
5133 case CPUMCPUIDFEATURE_PAE:
5134 pLeaf = cpumCpuIdGetLeaf(pVM, UINT32_C(0x00000001));
5135 if (pLeaf)
5136 pVM->cpum.s.aGuestCpuIdPatmStd[1].uEdx = pLeaf->uEdx &= ~X86_CPUID_FEATURE_EDX_PAE;
5137
5138 pLeaf = cpumCpuIdGetLeaf(pVM, UINT32_C(0x80000001));
5139 if ( pLeaf
5140 && ( pVM->cpum.s.GuestFeatures.enmCpuVendor == CPUMCPUVENDOR_AMD
5141 || pVM->cpum.s.GuestFeatures.enmCpuVendor == CPUMCPUVENDOR_HYGON))
5142 pVM->cpum.s.aGuestCpuIdPatmExt[1].uEdx = pLeaf->uEdx &= ~X86_CPUID_AMD_FEATURE_EDX_PAE;
5143
5144 pVM->cpum.s.GuestFeatures.fPae = 0;
5145 Log(("CPUM: ClearGuestCpuIdFeature: Disabled PAE!\n"));
5146 break;
5147
5148 case CPUMCPUIDFEATURE_PAT:
5149 pLeaf = cpumCpuIdGetLeaf(pVM, UINT32_C(0x00000001));
5150 if (pLeaf)
5151 pVM->cpum.s.aGuestCpuIdPatmStd[1].uEdx = pLeaf->uEdx &= ~X86_CPUID_FEATURE_EDX_PAT;
5152
5153 pLeaf = cpumCpuIdGetLeaf(pVM, UINT32_C(0x80000001));
5154 if ( pLeaf
5155 && ( pVM->cpum.s.GuestFeatures.enmCpuVendor == CPUMCPUVENDOR_AMD
5156 || pVM->cpum.s.GuestFeatures.enmCpuVendor == CPUMCPUVENDOR_HYGON))
5157 pVM->cpum.s.aGuestCpuIdPatmExt[1].uEdx = pLeaf->uEdx &= ~X86_CPUID_AMD_FEATURE_EDX_PAT;
5158
5159 pVM->cpum.s.GuestFeatures.fPat = 0;
5160 Log(("CPUM: ClearGuestCpuIdFeature: Disabled PAT!\n"));
5161 break;
5162
5163 case CPUMCPUIDFEATURE_LONG_MODE:
5164 pLeaf = cpumCpuIdGetLeaf(pVM, UINT32_C(0x80000001));
5165 if (pLeaf)
5166 pVM->cpum.s.aGuestCpuIdPatmExt[1].uEdx = pLeaf->uEdx &= ~X86_CPUID_EXT_FEATURE_EDX_LONG_MODE;
5167 pVM->cpum.s.GuestFeatures.fLongMode = 0;
5168 pVM->cpum.s.GuestFeatures.cVmxMaxPhysAddrWidth = 32;
5169 if (pVM->cpum.s.GuestFeatures.fVmx)
5170 for (VMCPUID idCpu = 0; idCpu < pVM->cCpus; idCpu++)
5171 {
5172 PVMCPU pVCpu = pVM->apCpusR3[idCpu];
5173 pVCpu->cpum.s.Guest.hwvirt.vmx.Msrs.u64Basic |= VMX_BASIC_PHYSADDR_WIDTH_32BIT;
5174 }
5175 break;
5176
5177 case CPUMCPUIDFEATURE_LAHF:
5178 pLeaf = cpumCpuIdGetLeaf(pVM, UINT32_C(0x80000001));
5179 if (pLeaf)
5180 pVM->cpum.s.aGuestCpuIdPatmExt[1].uEcx = pLeaf->uEcx &= ~X86_CPUID_EXT_FEATURE_ECX_LAHF_SAHF;
5181 pVM->cpum.s.GuestFeatures.fLahfSahf = 0;
5182 break;
5183
5184 case CPUMCPUIDFEATURE_RDTSCP:
5185 pLeaf = cpumCpuIdGetLeaf(pVM, UINT32_C(0x80000001));
5186 if (pLeaf)
5187 pVM->cpum.s.aGuestCpuIdPatmExt[1].uEdx = pLeaf->uEdx &= ~X86_CPUID_EXT_FEATURE_EDX_RDTSCP;
5188 pVM->cpum.s.GuestFeatures.fRdTscP = 0;
5189 Log(("CPUM: ClearGuestCpuIdFeature: Disabled RDTSCP!\n"));
5190 break;
5191
5192 case CPUMCPUIDFEATURE_HVP:
5193 pLeaf = cpumCpuIdGetLeaf(pVM, UINT32_C(0x00000001));
5194 if (pLeaf)
5195 pVM->cpum.s.aGuestCpuIdPatmStd[1].uEcx = pLeaf->uEcx &= ~X86_CPUID_FEATURE_ECX_HVP;
5196 pVM->cpum.s.GuestFeatures.fHypervisorPresent = 0;
5197 break;
5198
5199 case CPUMCPUIDFEATURE_MWAIT_EXTS:
5200 pLeaf = cpumCpuIdGetLeaf(pVM, UINT32_C(0x00000005));
5201 if (pLeaf)
5202 pVM->cpum.s.aGuestCpuIdPatmStd[5].uEcx = pLeaf->uEcx &= ~(X86_CPUID_MWAIT_ECX_EXT | X86_CPUID_MWAIT_ECX_BREAKIRQIF0);
5203 pVM->cpum.s.GuestFeatures.fMWaitExtensions = 0;
5204 Log(("CPUM: ClearGuestCpuIdFeature: Disabled MWAIT Extensions!\n"));
5205 break;
5206
5207 case CPUMCPUIDFEATURE_SPEC_CTRL:
5208 pLeaf = cpumR3CpuIdGetExactLeaf(&pVM->cpum.s, UINT32_C(0x00000007), 0);
5209 if (pLeaf)
5210 pLeaf->uEdx &= ~(X86_CPUID_STEXT_FEATURE_EDX_IBRS_IBPB | X86_CPUID_STEXT_FEATURE_EDX_STIBP);
5211 VMCC_FOR_EACH_VMCPU_STMT(pVM, pVCpu->cpum.s.GuestMsrs.msr.ArchCaps &= ~MSR_IA32_ARCH_CAP_F_IBRS_ALL);
5212 Log(("CPUM: ClearGuestCpuIdFeature: Disabled speculation control!\n"));
5213 break;
5214
5215 default:
5216 AssertMsgFailed(("enmFeature=%d\n", enmFeature));
5217 break;
5218 }
5219
5220 for (VMCPUID idCpu = 0; idCpu < pVM->cCpus; idCpu++)
5221 {
5222 PVMCPU pVCpu = pVM->apCpusR3[idCpu];
5223 pVCpu->cpum.s.fChanged |= CPUM_CHANGED_CPUID;
5224 }
5225}
5226
5227
5228
5229/*
5230 *
5231 *
5232 * Saved state related code.
5233 * Saved state related code.
5234 * Saved state related code.
5235 *
5236 *
5237 */
5238
5239/**
5240 * Called both in pass 0 and the final pass.
5241 *
5242 * @param pVM The cross context VM structure.
5243 * @param pSSM The saved state handle.
5244 */
5245void cpumR3SaveCpuId(PVM pVM, PSSMHANDLE pSSM)
5246{
5247 /*
5248 * Save all the CPU ID leaves.
5249 */
5250 SSMR3PutU32(pSSM, sizeof(pVM->cpum.s.GuestInfo.paCpuIdLeavesR3[0]));
5251 SSMR3PutU32(pSSM, pVM->cpum.s.GuestInfo.cCpuIdLeaves);
5252 SSMR3PutMem(pSSM, pVM->cpum.s.GuestInfo.paCpuIdLeavesR3,
5253 sizeof(pVM->cpum.s.GuestInfo.paCpuIdLeavesR3[0]) * pVM->cpum.s.GuestInfo.cCpuIdLeaves);
5254
5255 SSMR3PutMem(pSSM, &pVM->cpum.s.GuestInfo.DefCpuId, sizeof(pVM->cpum.s.GuestInfo.DefCpuId));
5256
5257 /*
5258 * Save a good portion of the raw CPU IDs as well as they may come in
5259 * handy when validating features for raw mode.
5260 */
5261 CPUMCPUID aRawStd[16];
5262 for (unsigned i = 0; i < RT_ELEMENTS(aRawStd); i++)
5263 ASMCpuIdExSlow(i, 0, 0, 0, &aRawStd[i].uEax, &aRawStd[i].uEbx, &aRawStd[i].uEcx, &aRawStd[i].uEdx);
5264 SSMR3PutU32(pSSM, RT_ELEMENTS(aRawStd));
5265 SSMR3PutMem(pSSM, &aRawStd[0], sizeof(aRawStd));
5266
5267 CPUMCPUID aRawExt[32];
5268 for (unsigned i = 0; i < RT_ELEMENTS(aRawExt); i++)
5269 ASMCpuIdExSlow(i | UINT32_C(0x80000000), 0, 0, 0, &aRawExt[i].uEax, &aRawExt[i].uEbx, &aRawExt[i].uEcx, &aRawExt[i].uEdx);
5270 SSMR3PutU32(pSSM, RT_ELEMENTS(aRawExt));
5271 SSMR3PutMem(pSSM, &aRawExt[0], sizeof(aRawExt));
5272}
5273
5274
5275static int cpumR3LoadOneOldGuestCpuIdArray(PSSMHANDLE pSSM, uint32_t uBase, PCPUMCPUIDLEAF *ppaLeaves, uint32_t *pcLeaves)
5276{
5277 uint32_t cCpuIds;
5278 int rc = SSMR3GetU32(pSSM, &cCpuIds);
5279 if (RT_SUCCESS(rc))
5280 {
5281 if (cCpuIds < 64)
5282 {
5283 for (uint32_t i = 0; i < cCpuIds; i++)
5284 {
5285 CPUMCPUID CpuId;
5286 rc = SSMR3GetMem(pSSM, &CpuId, sizeof(CpuId));
5287 if (RT_FAILURE(rc))
5288 break;
5289
5290 CPUMCPUIDLEAF NewLeaf;
5291 NewLeaf.uLeaf = uBase + i;
5292 NewLeaf.uSubLeaf = 0;
5293 NewLeaf.fSubLeafMask = 0;
5294 NewLeaf.uEax = CpuId.uEax;
5295 NewLeaf.uEbx = CpuId.uEbx;
5296 NewLeaf.uEcx = CpuId.uEcx;
5297 NewLeaf.uEdx = CpuId.uEdx;
5298 NewLeaf.fFlags = 0;
5299 rc = cpumR3CpuIdInsert(NULL /* pVM */, ppaLeaves, pcLeaves, &NewLeaf);
5300 }
5301 }
5302 else
5303 rc = VERR_SSM_DATA_UNIT_FORMAT_CHANGED;
5304 }
5305 if (RT_FAILURE(rc))
5306 {
5307 RTMemFree(*ppaLeaves);
5308 *ppaLeaves = NULL;
5309 *pcLeaves = 0;
5310 }
5311 return rc;
5312}
5313
5314
5315static int cpumR3LoadGuestCpuIdArray(PVM pVM, PSSMHANDLE pSSM, uint32_t uVersion, PCPUMCPUIDLEAF *ppaLeaves, uint32_t *pcLeaves)
5316{
5317 *ppaLeaves = NULL;
5318 *pcLeaves = 0;
5319
5320 int rc;
5321 if (uVersion > CPUM_SAVED_STATE_VERSION_PUT_STRUCT)
5322 {
5323 /*
5324 * The new format. Starts by declaring the leave size and count.
5325 */
5326 uint32_t cbLeaf;
5327 SSMR3GetU32(pSSM, &cbLeaf);
5328 uint32_t cLeaves;
5329 rc = SSMR3GetU32(pSSM, &cLeaves);
5330 if (RT_SUCCESS(rc))
5331 {
5332 if (cbLeaf == sizeof(**ppaLeaves))
5333 {
5334 if (cLeaves <= CPUM_CPUID_MAX_LEAVES)
5335 {
5336 /*
5337 * Load the leaves one by one.
5338 *
5339 * The uPrev stuff is a kludge for working around a week worth of bad saved
5340 * states during the CPUID revamp in March 2015. We saved too many leaves
5341 * due to a bug in cpumR3CpuIdInstallAndExplodeLeaves, thus ending up with
5342 * garbage entires at the end of the array when restoring. We also had
5343 * a subleaf insertion bug that triggered with the leaf 4 stuff below,
5344 * this kludge doesn't deal correctly with that, but who cares...
5345 */
5346 uint32_t uPrev = 0;
5347 for (uint32_t i = 0; i < cLeaves && RT_SUCCESS(rc); i++)
5348 {
5349 CPUMCPUIDLEAF Leaf;
5350 rc = SSMR3GetMem(pSSM, &Leaf, sizeof(Leaf));
5351 if (RT_SUCCESS(rc))
5352 {
5353 if ( uVersion != CPUM_SAVED_STATE_VERSION_BAD_CPUID_COUNT
5354 || Leaf.uLeaf >= uPrev)
5355 {
5356 rc = cpumR3CpuIdInsert(NULL /* pVM */, ppaLeaves, pcLeaves, &Leaf);
5357 uPrev = Leaf.uLeaf;
5358 }
5359 else
5360 uPrev = UINT32_MAX;
5361 }
5362 }
5363 }
5364 else
5365 rc = SSMR3SetLoadError(pSSM, VERR_TOO_MANY_CPUID_LEAVES, RT_SRC_POS,
5366 "Too many CPUID leaves: %#x, max %#x", cLeaves, CPUM_CPUID_MAX_LEAVES);
5367 }
5368 else
5369 rc = SSMR3SetLoadError(pSSM, VERR_SSM_DATA_UNIT_FORMAT_CHANGED, RT_SRC_POS,
5370 "CPUMCPUIDLEAF size differs: saved=%#x, our=%#x", cbLeaf, sizeof(**ppaLeaves));
5371 }
5372 }
5373 else
5374 {
5375 /*
5376 * The old format with its three inflexible arrays.
5377 */
5378 rc = cpumR3LoadOneOldGuestCpuIdArray(pSSM, UINT32_C(0x00000000), ppaLeaves, pcLeaves);
5379 if (RT_SUCCESS(rc))
5380 rc = cpumR3LoadOneOldGuestCpuIdArray(pSSM, UINT32_C(0x80000000), ppaLeaves, pcLeaves);
5381 if (RT_SUCCESS(rc))
5382 rc = cpumR3LoadOneOldGuestCpuIdArray(pSSM, UINT32_C(0xc0000000), ppaLeaves, pcLeaves);
5383 if (RT_SUCCESS(rc))
5384 {
5385 /*
5386 * Fake up leaf 4 on intel like we used to do in CPUMGetGuestCpuId earlier.
5387 */
5388 PCPUMCPUIDLEAF pLeaf = cpumR3CpuIdGetLeaf(*ppaLeaves, *pcLeaves, 0, 0);
5389 if ( pLeaf
5390 && ASMIsIntelCpuEx(pLeaf->uEbx, pLeaf->uEcx, pLeaf->uEdx))
5391 {
5392 CPUMCPUIDLEAF Leaf;
5393 Leaf.uLeaf = 4;
5394 Leaf.fSubLeafMask = UINT32_MAX;
5395 Leaf.uSubLeaf = 0;
5396 Leaf.uEdx = UINT32_C(0); /* 3 flags, 0 is fine. */
5397 Leaf.uEcx = UINT32_C(63); /* sets - 1 */
5398 Leaf.uEbx = (UINT32_C(7) << 22) /* associativity -1 */
5399 | (UINT32_C(0) << 12) /* phys line partitions - 1 */
5400 | UINT32_C(63); /* system coherency line size - 1 */
5401 Leaf.uEax = (RT_MIN(pVM->cCpus - 1, UINT32_C(0x3f)) << 26) /* cores per package - 1 */
5402 | (UINT32_C(0) << 14) /* threads per cache - 1 */
5403 | (UINT32_C(1) << 5) /* cache level */
5404 | UINT32_C(1); /* cache type (data) */
5405 Leaf.fFlags = 0;
5406 rc = cpumR3CpuIdInsert(NULL /* pVM */, ppaLeaves, pcLeaves, &Leaf);
5407 if (RT_SUCCESS(rc))
5408 {
5409 Leaf.uSubLeaf = 1; /* Should've been cache type 2 (code), but buggy code made it data. */
5410 rc = cpumR3CpuIdInsert(NULL /* pVM */, ppaLeaves, pcLeaves, &Leaf);
5411 }
5412 if (RT_SUCCESS(rc))
5413 {
5414 Leaf.uSubLeaf = 2; /* Should've been cache type 3 (unified), but buggy code made it data. */
5415 Leaf.uEcx = 4095; /* sets - 1 */
5416 Leaf.uEbx &= UINT32_C(0x003fffff); /* associativity - 1 */
5417 Leaf.uEbx |= UINT32_C(23) << 22;
5418 Leaf.uEax &= UINT32_C(0xfc003fff); /* threads per cache - 1 */
5419 Leaf.uEax |= RT_MIN(pVM->cCpus - 1, UINT32_C(0xfff)) << 14;
5420 Leaf.uEax &= UINT32_C(0xffffff1f); /* level */
5421 Leaf.uEax |= UINT32_C(2) << 5;
5422 rc = cpumR3CpuIdInsert(NULL /* pVM */, ppaLeaves, pcLeaves, &Leaf);
5423 }
5424 }
5425 }
5426 }
5427 return rc;
5428}
5429
5430
5431/**
5432 * Loads the CPU ID leaves saved by pass 0, inner worker.
5433 *
5434 * @returns VBox status code.
5435 * @param pVM The cross context VM structure.
5436 * @param pSSM The saved state handle.
5437 * @param uVersion The format version.
5438 * @param paLeaves Guest CPUID leaves loaded from the state.
5439 * @param cLeaves The number of leaves in @a paLeaves.
5440 * @param pMsrs The guest MSRs.
5441 */
5442int cpumR3LoadCpuIdInner(PVM pVM, PSSMHANDLE pSSM, uint32_t uVersion, PCPUMCPUIDLEAF paLeaves, uint32_t cLeaves, PCCPUMMSRS pMsrs)
5443{
5444 AssertMsgReturn(uVersion >= CPUM_SAVED_STATE_VERSION_VER3_2, ("%u\n", uVersion), VERR_SSM_UNSUPPORTED_DATA_UNIT_VERSION);
5445
5446 /*
5447 * Continue loading the state into stack buffers.
5448 */
5449 CPUMCPUID GuestDefCpuId;
5450 int rc = SSMR3GetMem(pSSM, &GuestDefCpuId, sizeof(GuestDefCpuId));
5451 AssertRCReturn(rc, rc);
5452
5453 CPUMCPUID aRawStd[16];
5454 uint32_t cRawStd;
5455 rc = SSMR3GetU32(pSSM, &cRawStd); AssertRCReturn(rc, rc);
5456 if (cRawStd > RT_ELEMENTS(aRawStd))
5457 return VERR_SSM_DATA_UNIT_FORMAT_CHANGED;
5458 rc = SSMR3GetMem(pSSM, &aRawStd[0], cRawStd * sizeof(aRawStd[0]));
5459 AssertRCReturn(rc, rc);
5460 for (uint32_t i = cRawStd; i < RT_ELEMENTS(aRawStd); i++)
5461 ASMCpuIdExSlow(i, 0, 0, 0, &aRawStd[i].uEax, &aRawStd[i].uEbx, &aRawStd[i].uEcx, &aRawStd[i].uEdx);
5462
5463 CPUMCPUID aRawExt[32];
5464 uint32_t cRawExt;
5465 rc = SSMR3GetU32(pSSM, &cRawExt); AssertRCReturn(rc, rc);
5466 if (cRawExt > RT_ELEMENTS(aRawExt))
5467 return VERR_SSM_DATA_UNIT_FORMAT_CHANGED;
5468 rc = SSMR3GetMem(pSSM, &aRawExt[0], cRawExt * sizeof(aRawExt[0]));
5469 AssertRCReturn(rc, rc);
5470 for (uint32_t i = cRawExt; i < RT_ELEMENTS(aRawExt); i++)
5471 ASMCpuIdExSlow(i | UINT32_C(0x80000000), 0, 0, 0, &aRawExt[i].uEax, &aRawExt[i].uEbx, &aRawExt[i].uEcx, &aRawExt[i].uEdx);
5472
5473 /*
5474 * Get the raw CPU IDs for the current host.
5475 */
5476 CPUMCPUID aHostRawStd[16];
5477 for (unsigned i = 0; i < RT_ELEMENTS(aHostRawStd); i++)
5478 ASMCpuIdExSlow(i, 0, 0, 0, &aHostRawStd[i].uEax, &aHostRawStd[i].uEbx, &aHostRawStd[i].uEcx, &aHostRawStd[i].uEdx);
5479
5480 CPUMCPUID aHostRawExt[32];
5481 for (unsigned i = 0; i < RT_ELEMENTS(aHostRawExt); i++)
5482 ASMCpuIdExSlow(i | UINT32_C(0x80000000), 0, 0, 0,
5483 &aHostRawExt[i].uEax, &aHostRawExt[i].uEbx, &aHostRawExt[i].uEcx, &aHostRawExt[i].uEdx);
5484
5485 /*
5486 * Get the host and guest overrides so we don't reject the state because
5487 * some feature was enabled thru these interfaces.
5488 * Note! We currently only need the feature leaves, so skip rest.
5489 */
5490 PCFGMNODE pOverrideCfg = CFGMR3GetChild(CFGMR3GetRoot(pVM), "CPUM/HostCPUID");
5491 CPUMCPUID aHostOverrideStd[2];
5492 memcpy(&aHostOverrideStd[0], &aHostRawStd[0], sizeof(aHostOverrideStd));
5493 cpumR3CpuIdInitLoadOverrideSet(UINT32_C(0x00000000), &aHostOverrideStd[0], RT_ELEMENTS(aHostOverrideStd), pOverrideCfg);
5494
5495 CPUMCPUID aHostOverrideExt[2];
5496 memcpy(&aHostOverrideExt[0], &aHostRawExt[0], sizeof(aHostOverrideExt));
5497 cpumR3CpuIdInitLoadOverrideSet(UINT32_C(0x80000000), &aHostOverrideExt[0], RT_ELEMENTS(aHostOverrideExt), pOverrideCfg);
5498
5499 /*
5500 * This can be skipped.
5501 */
5502 bool fStrictCpuIdChecks;
5503 CFGMR3QueryBoolDef(CFGMR3GetChild(CFGMR3GetRoot(pVM), "CPUM"), "StrictCpuIdChecks", &fStrictCpuIdChecks, true);
5504
5505 /*
5506 * Define a bunch of macros for simplifying the santizing/checking code below.
5507 */
5508 /* Generic expression + failure message. */
5509#define CPUID_CHECK_RET(expr, fmt) \
5510 do { \
5511 if (!(expr)) \
5512 { \
5513 char *pszMsg = RTStrAPrintf2 fmt; /* lack of variadic macros sucks */ \
5514 if (fStrictCpuIdChecks) \
5515 { \
5516 int rcCpuid = SSMR3SetLoadError(pSSM, VERR_SSM_LOAD_CPUID_MISMATCH, RT_SRC_POS, "%s", pszMsg); \
5517 RTStrFree(pszMsg); \
5518 return rcCpuid; \
5519 } \
5520 LogRel(("CPUM: %s\n", pszMsg)); \
5521 RTStrFree(pszMsg); \
5522 } \
5523 } while (0)
5524#define CPUID_CHECK_WRN(expr, fmt) \
5525 do { \
5526 if (!(expr)) \
5527 LogRel(fmt); \
5528 } while (0)
5529
5530 /* For comparing two values and bitch if they differs. */
5531#define CPUID_CHECK2_RET(what, host, saved) \
5532 do { \
5533 if ((host) != (saved)) \
5534 { \
5535 if (fStrictCpuIdChecks) \
5536 return SSMR3SetLoadError(pSSM, VERR_SSM_LOAD_CPUID_MISMATCH, RT_SRC_POS, \
5537 N_(#what " mismatch: host=%#x saved=%#x"), (host), (saved)); \
5538 LogRel(("CPUM: " #what " differs: host=%#x saved=%#x\n", (host), (saved))); \
5539 } \
5540 } while (0)
5541#define CPUID_CHECK2_WRN(what, host, saved) \
5542 do { \
5543 if ((host) != (saved)) \
5544 LogRel(("CPUM: " #what " differs: host=%#x saved=%#x\n", (host), (saved))); \
5545 } while (0)
5546
5547 /* For checking raw cpu features (raw mode). */
5548#define CPUID_RAW_FEATURE_RET(set, reg, bit) \
5549 do { \
5550 if ((aHostRaw##set [1].reg & bit) != (aRaw##set [1].reg & bit)) \
5551 { \
5552 if (fStrictCpuIdChecks) \
5553 return SSMR3SetLoadError(pSSM, VERR_SSM_LOAD_CPUID_MISMATCH, RT_SRC_POS, \
5554 N_(#bit " mismatch: host=%d saved=%d"), \
5555 !!(aHostRaw##set [1].reg & (bit)), !!(aRaw##set [1].reg & (bit)) ); \
5556 LogRel(("CPUM: " #bit" differs: host=%d saved=%d\n", \
5557 !!(aHostRaw##set [1].reg & (bit)), !!(aRaw##set [1].reg & (bit)) )); \
5558 } \
5559 } while (0)
5560#define CPUID_RAW_FEATURE_WRN(set, reg, bit) \
5561 do { \
5562 if ((aHostRaw##set [1].reg & bit) != (aRaw##set [1].reg & bit)) \
5563 LogRel(("CPUM: " #bit" differs: host=%d saved=%d\n", \
5564 !!(aHostRaw##set [1].reg & (bit)), !!(aRaw##set [1].reg & (bit)) )); \
5565 } while (0)
5566#define CPUID_RAW_FEATURE_IGN(set, reg, bit) do { } while (0)
5567
5568 /* For checking guest features. */
5569#define CPUID_GST_FEATURE_RET(set, reg, bit) \
5570 do { \
5571 if ( (aGuestCpuId##set [1].reg & bit) \
5572 && !(aHostRaw##set [1].reg & bit) \
5573 && !(aHostOverride##set [1].reg & bit) \
5574 ) \
5575 { \
5576 if (fStrictCpuIdChecks) \
5577 return SSMR3SetLoadError(pSSM, VERR_SSM_LOAD_CPUID_MISMATCH, RT_SRC_POS, \
5578 N_(#bit " is not supported by the host but has already exposed to the guest")); \
5579 LogRel(("CPUM: " #bit " is not supported by the host but has already exposed to the guest\n")); \
5580 } \
5581 } while (0)
5582#define CPUID_GST_FEATURE_WRN(set, reg, bit) \
5583 do { \
5584 if ( (aGuestCpuId##set [1].reg & bit) \
5585 && !(aHostRaw##set [1].reg & bit) \
5586 && !(aHostOverride##set [1].reg & bit) \
5587 ) \
5588 LogRel(("CPUM: " #bit " is not supported by the host but has already exposed to the guest\n")); \
5589 } while (0)
5590#define CPUID_GST_FEATURE_EMU(set, reg, bit) \
5591 do { \
5592 if ( (aGuestCpuId##set [1].reg & bit) \
5593 && !(aHostRaw##set [1].reg & bit) \
5594 && !(aHostOverride##set [1].reg & bit) \
5595 ) \
5596 LogRel(("CPUM: Warning - " #bit " is not supported by the host but already exposed to the guest. This may impact performance.\n")); \
5597 } while (0)
5598#define CPUID_GST_FEATURE_IGN(set, reg, bit) do { } while (0)
5599
5600 /* For checking guest features if AMD guest CPU. */
5601#define CPUID_GST_AMD_FEATURE_RET(set, reg, bit) \
5602 do { \
5603 if ( (aGuestCpuId##set [1].reg & bit) \
5604 && fGuestAmd \
5605 && (!fGuestAmd || !(aHostRaw##set [1].reg & bit)) \
5606 && !(aHostOverride##set [1].reg & bit) \
5607 ) \
5608 { \
5609 if (fStrictCpuIdChecks) \
5610 return SSMR3SetLoadError(pSSM, VERR_SSM_LOAD_CPUID_MISMATCH, RT_SRC_POS, \
5611 N_(#bit " is not supported by the host but has already exposed to the guest")); \
5612 LogRel(("CPUM: " #bit " is not supported by the host but has already exposed to the guest\n")); \
5613 } \
5614 } while (0)
5615#define CPUID_GST_AMD_FEATURE_WRN(set, reg, bit) \
5616 do { \
5617 if ( (aGuestCpuId##set [1].reg & bit) \
5618 && fGuestAmd \
5619 && (!fGuestAmd || !(aHostRaw##set [1].reg & bit)) \
5620 && !(aHostOverride##set [1].reg & bit) \
5621 ) \
5622 LogRel(("CPUM: " #bit " is not supported by the host but has already exposed to the guest\n")); \
5623 } while (0)
5624#define CPUID_GST_AMD_FEATURE_EMU(set, reg, bit) \
5625 do { \
5626 if ( (aGuestCpuId##set [1].reg & bit) \
5627 && fGuestAmd \
5628 && (!fGuestAmd || !(aHostRaw##set [1].reg & bit)) \
5629 && !(aHostOverride##set [1].reg & bit) \
5630 ) \
5631 LogRel(("CPUM: Warning - " #bit " is not supported by the host but already exposed to the guest. This may impact performance.\n")); \
5632 } while (0)
5633#define CPUID_GST_AMD_FEATURE_IGN(set, reg, bit) do { } while (0)
5634
5635 /* For checking AMD features which have a corresponding bit in the standard
5636 range. (Intel defines very few bits in the extended feature sets.) */
5637#define CPUID_GST_FEATURE2_RET(reg, ExtBit, StdBit) \
5638 do { \
5639 if ( (aGuestCpuIdExt [1].reg & (ExtBit)) \
5640 && !(fHostAmd \
5641 ? aHostRawExt[1].reg & (ExtBit) \
5642 : aHostRawStd[1].reg & (StdBit)) \
5643 && !(aHostOverrideExt[1].reg & (ExtBit)) \
5644 ) \
5645 { \
5646 if (fStrictCpuIdChecks) \
5647 return SSMR3SetLoadError(pSSM, VERR_SSM_LOAD_CPUID_MISMATCH, RT_SRC_POS, \
5648 N_(#ExtBit " is not supported by the host but has already exposed to the guest")); \
5649 LogRel(("CPUM: " #ExtBit " is not supported by the host but has already exposed to the guest\n")); \
5650 } \
5651 } while (0)
5652#define CPUID_GST_FEATURE2_WRN(reg, ExtBit, StdBit) \
5653 do { \
5654 if ( (aGuestCpuId[1].reg & (ExtBit)) \
5655 && !(fHostAmd \
5656 ? aHostRawExt[1].reg & (ExtBit) \
5657 : aHostRawStd[1].reg & (StdBit)) \
5658 && !(aHostOverrideExt[1].reg & (ExtBit)) \
5659 ) \
5660 LogRel(("CPUM: " #ExtBit " is not supported by the host but has already exposed to the guest\n")); \
5661 } while (0)
5662#define CPUID_GST_FEATURE2_EMU(reg, ExtBit, StdBit) \
5663 do { \
5664 if ( (aGuestCpuIdExt [1].reg & (ExtBit)) \
5665 && !(fHostAmd \
5666 ? aHostRawExt[1].reg & (ExtBit) \
5667 : aHostRawStd[1].reg & (StdBit)) \
5668 && !(aHostOverrideExt[1].reg & (ExtBit)) \
5669 ) \
5670 LogRel(("CPUM: Warning - " #ExtBit " is not supported by the host but already exposed to the guest. This may impact performance.\n")); \
5671 } while (0)
5672#define CPUID_GST_FEATURE2_IGN(reg, ExtBit, StdBit) do { } while (0)
5673
5674
5675 /*
5676 * Verify that we can support the features already exposed to the guest on
5677 * this host.
5678 *
5679 * Most of the features we're emulating requires intercepting instruction
5680 * and doing it the slow way, so there is no need to warn when they aren't
5681 * present in the host CPU. Thus we use IGN instead of EMU on these.
5682 *
5683 * Trailing comments:
5684 * "EMU" - Possible to emulate, could be lots of work and very slow.
5685 * "EMU?" - Can this be emulated?
5686 */
5687 CPUMCPUID aGuestCpuIdStd[2];
5688 RT_ZERO(aGuestCpuIdStd);
5689 cpumR3CpuIdGetLeafLegacy(paLeaves, cLeaves, 1, 0, &aGuestCpuIdStd[1]);
5690
5691 /* CPUID(1).ecx */
5692 CPUID_GST_FEATURE_RET(Std, uEcx, X86_CPUID_FEATURE_ECX_SSE3); // -> EMU
5693 CPUID_GST_FEATURE_RET(Std, uEcx, X86_CPUID_FEATURE_ECX_PCLMUL); // -> EMU?
5694 CPUID_GST_FEATURE_RET(Std, uEcx, X86_CPUID_FEATURE_ECX_DTES64); // -> EMU?
5695 CPUID_GST_FEATURE_IGN(Std, uEcx, X86_CPUID_FEATURE_ECX_MONITOR);
5696 CPUID_GST_FEATURE_RET(Std, uEcx, X86_CPUID_FEATURE_ECX_CPLDS); // -> EMU?
5697 CPUID_GST_FEATURE_RET(Std, uEcx, X86_CPUID_FEATURE_ECX_VMX); // -> EMU
5698 CPUID_GST_FEATURE_RET(Std, uEcx, X86_CPUID_FEATURE_ECX_SMX); // -> EMU
5699 CPUID_GST_FEATURE_RET(Std, uEcx, X86_CPUID_FEATURE_ECX_EST); // -> EMU
5700 CPUID_GST_FEATURE_RET(Std, uEcx, X86_CPUID_FEATURE_ECX_TM2); // -> EMU?
5701 CPUID_GST_FEATURE_RET(Std, uEcx, X86_CPUID_FEATURE_ECX_SSSE3); // -> EMU
5702 CPUID_GST_FEATURE_RET(Std, uEcx, X86_CPUID_FEATURE_ECX_CNTXID); // -> EMU
5703 CPUID_GST_FEATURE_IGN(Std, uEcx, X86_CPUID_FEATURE_ECX_SDBG);
5704 CPUID_GST_FEATURE_RET(Std, uEcx, X86_CPUID_FEATURE_ECX_FMA); // -> EMU? what's this?
5705 CPUID_GST_FEATURE_RET(Std, uEcx, X86_CPUID_FEATURE_ECX_CX16); // -> EMU?
5706 CPUID_GST_FEATURE_RET(Std, uEcx, X86_CPUID_FEATURE_ECX_TPRUPDATE);//-> EMU
5707 CPUID_GST_FEATURE_RET(Std, uEcx, X86_CPUID_FEATURE_ECX_PDCM); // -> EMU
5708 CPUID_GST_FEATURE_RET(Std, uEcx, RT_BIT_32(16) /*reserved*/);
5709 CPUID_GST_FEATURE_RET(Std, uEcx, X86_CPUID_FEATURE_ECX_PCID);
5710 CPUID_GST_FEATURE_RET(Std, uEcx, X86_CPUID_FEATURE_ECX_DCA); // -> EMU?
5711 CPUID_GST_FEATURE_RET(Std, uEcx, X86_CPUID_FEATURE_ECX_SSE4_1); // -> EMU
5712 CPUID_GST_FEATURE_RET(Std, uEcx, X86_CPUID_FEATURE_ECX_SSE4_2); // -> EMU
5713 CPUID_GST_FEATURE_IGN(Std, uEcx, X86_CPUID_FEATURE_ECX_X2APIC);
5714 CPUID_GST_FEATURE_RET(Std, uEcx, X86_CPUID_FEATURE_ECX_MOVBE); // -> EMU
5715 CPUID_GST_FEATURE_RET(Std, uEcx, X86_CPUID_FEATURE_ECX_POPCNT); // -> EMU
5716 CPUID_GST_FEATURE_RET(Std, uEcx, X86_CPUID_FEATURE_ECX_TSCDEADL);
5717 CPUID_GST_FEATURE_RET(Std, uEcx, X86_CPUID_FEATURE_ECX_AES); // -> EMU
5718 CPUID_GST_FEATURE_RET(Std, uEcx, X86_CPUID_FEATURE_ECX_XSAVE); // -> EMU
5719 CPUID_GST_FEATURE_IGN(Std, uEcx, X86_CPUID_FEATURE_ECX_OSXSAVE);
5720 CPUID_GST_FEATURE_RET(Std, uEcx, X86_CPUID_FEATURE_ECX_AVX); // -> EMU?
5721 CPUID_GST_FEATURE_RET(Std, uEcx, X86_CPUID_FEATURE_ECX_F16C);
5722 CPUID_GST_FEATURE_RET(Std, uEcx, X86_CPUID_FEATURE_ECX_RDRAND);
5723 CPUID_GST_FEATURE_IGN(Std, uEcx, X86_CPUID_FEATURE_ECX_HVP); // Normally not set by host
5724
5725 /* CPUID(1).edx */
5726 CPUID_GST_FEATURE_RET(Std, uEdx, X86_CPUID_FEATURE_EDX_FPU);
5727 CPUID_GST_FEATURE_RET(Std, uEdx, X86_CPUID_FEATURE_EDX_VME);
5728 CPUID_GST_FEATURE_RET(Std, uEdx, X86_CPUID_FEATURE_EDX_DE); // -> EMU?
5729 CPUID_GST_FEATURE_IGN(Std, uEdx, X86_CPUID_FEATURE_EDX_PSE);
5730 CPUID_GST_FEATURE_RET(Std, uEdx, X86_CPUID_FEATURE_EDX_TSC); // -> EMU
5731 CPUID_GST_FEATURE_RET(Std, uEdx, X86_CPUID_FEATURE_EDX_MSR); // -> EMU
5732 CPUID_GST_FEATURE_RET(Std, uEdx, X86_CPUID_FEATURE_EDX_PAE);
5733 CPUID_GST_FEATURE_IGN(Std, uEdx, X86_CPUID_FEATURE_EDX_MCE);
5734 CPUID_GST_FEATURE_RET(Std, uEdx, X86_CPUID_FEATURE_EDX_CX8); // -> EMU?
5735 CPUID_GST_FEATURE_IGN(Std, uEdx, X86_CPUID_FEATURE_EDX_APIC);
5736 CPUID_GST_FEATURE_RET(Std, uEdx, RT_BIT_32(10) /*reserved*/);
5737 CPUID_GST_FEATURE_IGN(Std, uEdx, X86_CPUID_FEATURE_EDX_SEP);
5738 CPUID_GST_FEATURE_IGN(Std, uEdx, X86_CPUID_FEATURE_EDX_MTRR);
5739 CPUID_GST_FEATURE_IGN(Std, uEdx, X86_CPUID_FEATURE_EDX_PGE);
5740 CPUID_GST_FEATURE_IGN(Std, uEdx, X86_CPUID_FEATURE_EDX_MCA);
5741 CPUID_GST_FEATURE_RET(Std, uEdx, X86_CPUID_FEATURE_EDX_CMOV); // -> EMU
5742 CPUID_GST_FEATURE_IGN(Std, uEdx, X86_CPUID_FEATURE_EDX_PAT);
5743 CPUID_GST_FEATURE_IGN(Std, uEdx, X86_CPUID_FEATURE_EDX_PSE36);
5744 CPUID_GST_FEATURE_IGN(Std, uEdx, X86_CPUID_FEATURE_EDX_PSN);
5745 CPUID_GST_FEATURE_RET(Std, uEdx, X86_CPUID_FEATURE_EDX_CLFSH); // -> EMU
5746 CPUID_GST_FEATURE_RET(Std, uEdx, RT_BIT_32(20) /*reserved*/);
5747 CPUID_GST_FEATURE_RET(Std, uEdx, X86_CPUID_FEATURE_EDX_DS); // -> EMU?
5748 CPUID_GST_FEATURE_RET(Std, uEdx, X86_CPUID_FEATURE_EDX_ACPI); // -> EMU?
5749 CPUID_GST_FEATURE_RET(Std, uEdx, X86_CPUID_FEATURE_EDX_MMX); // -> EMU
5750 CPUID_GST_FEATURE_RET(Std, uEdx, X86_CPUID_FEATURE_EDX_FXSR); // -> EMU
5751 CPUID_GST_FEATURE_RET(Std, uEdx, X86_CPUID_FEATURE_EDX_SSE); // -> EMU
5752 CPUID_GST_FEATURE_RET(Std, uEdx, X86_CPUID_FEATURE_EDX_SSE2); // -> EMU
5753 CPUID_GST_FEATURE_RET(Std, uEdx, X86_CPUID_FEATURE_EDX_SS); // -> EMU?
5754 CPUID_GST_FEATURE_IGN(Std, uEdx, X86_CPUID_FEATURE_EDX_HTT); // -> EMU?
5755 CPUID_GST_FEATURE_RET(Std, uEdx, X86_CPUID_FEATURE_EDX_TM); // -> EMU?
5756 CPUID_GST_FEATURE_RET(Std, uEdx, RT_BIT_32(30) /*JMPE/IA64*/); // -> EMU
5757 CPUID_GST_FEATURE_RET(Std, uEdx, X86_CPUID_FEATURE_EDX_PBE); // -> EMU?
5758
5759 /* CPUID(0x80000000). */
5760 CPUMCPUID aGuestCpuIdExt[2];
5761 RT_ZERO(aGuestCpuIdExt);
5762 if (cpumR3CpuIdGetLeafLegacy(paLeaves, cLeaves, UINT32_C(0x80000001), 0, &aGuestCpuIdExt[1]))
5763 {
5764 /** @todo deal with no 0x80000001 on the host. */
5765 bool const fHostAmd = ASMIsAmdCpuEx(aHostRawStd[0].uEbx, aHostRawStd[0].uEcx, aHostRawStd[0].uEdx)
5766 || ASMIsHygonCpuEx(aHostRawStd[0].uEbx, aHostRawStd[0].uEcx, aHostRawStd[0].uEdx);
5767 bool const fGuestAmd = ASMIsAmdCpuEx(aGuestCpuIdExt[0].uEbx, aGuestCpuIdExt[0].uEcx, aGuestCpuIdExt[0].uEdx)
5768 || ASMIsHygonCpuEx(aGuestCpuIdExt[0].uEbx, aGuestCpuIdExt[0].uEcx, aGuestCpuIdExt[0].uEdx);
5769
5770 /* CPUID(0x80000001).ecx */
5771 CPUID_GST_FEATURE_WRN(Ext, uEcx, X86_CPUID_EXT_FEATURE_ECX_LAHF_SAHF); // -> EMU
5772 CPUID_GST_AMD_FEATURE_WRN(Ext, uEcx, X86_CPUID_AMD_FEATURE_ECX_CMPL); // -> EMU
5773 CPUID_GST_AMD_FEATURE_RET(Ext, uEcx, X86_CPUID_AMD_FEATURE_ECX_SVM); // -> EMU
5774 CPUID_GST_AMD_FEATURE_WRN(Ext, uEcx, X86_CPUID_AMD_FEATURE_ECX_EXT_APIC);// ???
5775 CPUID_GST_AMD_FEATURE_RET(Ext, uEcx, X86_CPUID_AMD_FEATURE_ECX_CR8L); // -> EMU
5776 CPUID_GST_AMD_FEATURE_RET(Ext, uEcx, X86_CPUID_AMD_FEATURE_ECX_ABM); // -> EMU
5777 CPUID_GST_AMD_FEATURE_RET(Ext, uEcx, X86_CPUID_AMD_FEATURE_ECX_SSE4A); // -> EMU
5778 CPUID_GST_AMD_FEATURE_RET(Ext, uEcx, X86_CPUID_AMD_FEATURE_ECX_MISALNSSE);//-> EMU
5779 CPUID_GST_AMD_FEATURE_RET(Ext, uEcx, X86_CPUID_AMD_FEATURE_ECX_3DNOWPRF);// -> EMU
5780 CPUID_GST_AMD_FEATURE_RET(Ext, uEcx, X86_CPUID_AMD_FEATURE_ECX_OSVW); // -> EMU?
5781 CPUID_GST_AMD_FEATURE_RET(Ext, uEcx, X86_CPUID_AMD_FEATURE_ECX_IBS); // -> EMU
5782 CPUID_GST_AMD_FEATURE_RET(Ext, uEcx, X86_CPUID_AMD_FEATURE_ECX_XOP); // -> EMU
5783 CPUID_GST_AMD_FEATURE_RET(Ext, uEcx, X86_CPUID_AMD_FEATURE_ECX_SKINIT); // -> EMU
5784 CPUID_GST_AMD_FEATURE_RET(Ext, uEcx, X86_CPUID_AMD_FEATURE_ECX_WDT); // -> EMU
5785 CPUID_GST_AMD_FEATURE_WRN(Ext, uEcx, RT_BIT_32(14));
5786 CPUID_GST_AMD_FEATURE_WRN(Ext, uEcx, RT_BIT_32(15));
5787 CPUID_GST_AMD_FEATURE_WRN(Ext, uEcx, RT_BIT_32(16));
5788 CPUID_GST_AMD_FEATURE_WRN(Ext, uEcx, RT_BIT_32(17));
5789 CPUID_GST_AMD_FEATURE_WRN(Ext, uEcx, RT_BIT_32(18));
5790 CPUID_GST_AMD_FEATURE_WRN(Ext, uEcx, RT_BIT_32(19));
5791 CPUID_GST_AMD_FEATURE_WRN(Ext, uEcx, RT_BIT_32(20));
5792 CPUID_GST_AMD_FEATURE_WRN(Ext, uEcx, RT_BIT_32(21));
5793 CPUID_GST_AMD_FEATURE_WRN(Ext, uEcx, RT_BIT_32(22));
5794 CPUID_GST_AMD_FEATURE_WRN(Ext, uEcx, RT_BIT_32(23));
5795 CPUID_GST_AMD_FEATURE_WRN(Ext, uEcx, RT_BIT_32(24));
5796 CPUID_GST_AMD_FEATURE_WRN(Ext, uEcx, RT_BIT_32(25));
5797 CPUID_GST_AMD_FEATURE_WRN(Ext, uEcx, RT_BIT_32(26));
5798 CPUID_GST_AMD_FEATURE_WRN(Ext, uEcx, RT_BIT_32(27));
5799 CPUID_GST_AMD_FEATURE_WRN(Ext, uEcx, RT_BIT_32(28));
5800 CPUID_GST_AMD_FEATURE_WRN(Ext, uEcx, RT_BIT_32(29));
5801 CPUID_GST_AMD_FEATURE_WRN(Ext, uEcx, RT_BIT_32(30));
5802 CPUID_GST_AMD_FEATURE_WRN(Ext, uEcx, RT_BIT_32(31));
5803
5804 /* CPUID(0x80000001).edx */
5805 CPUID_GST_FEATURE2_RET( uEdx, X86_CPUID_AMD_FEATURE_EDX_FPU, X86_CPUID_FEATURE_EDX_FPU); // -> EMU
5806 CPUID_GST_FEATURE2_RET( uEdx, X86_CPUID_AMD_FEATURE_EDX_VME, X86_CPUID_FEATURE_EDX_VME); // -> EMU
5807 CPUID_GST_FEATURE2_RET( uEdx, X86_CPUID_AMD_FEATURE_EDX_DE, X86_CPUID_FEATURE_EDX_DE); // -> EMU
5808 CPUID_GST_FEATURE2_IGN( uEdx, X86_CPUID_AMD_FEATURE_EDX_PSE, X86_CPUID_FEATURE_EDX_PSE);
5809 CPUID_GST_FEATURE2_RET( uEdx, X86_CPUID_AMD_FEATURE_EDX_TSC, X86_CPUID_FEATURE_EDX_TSC); // -> EMU
5810 CPUID_GST_FEATURE2_RET( uEdx, X86_CPUID_AMD_FEATURE_EDX_MSR, X86_CPUID_FEATURE_EDX_MSR); // -> EMU
5811 CPUID_GST_FEATURE2_RET( uEdx, X86_CPUID_AMD_FEATURE_EDX_PAE, X86_CPUID_FEATURE_EDX_PAE);
5812 CPUID_GST_FEATURE2_IGN( uEdx, X86_CPUID_AMD_FEATURE_EDX_MCE, X86_CPUID_FEATURE_EDX_MCE);
5813 CPUID_GST_FEATURE2_RET( uEdx, X86_CPUID_AMD_FEATURE_EDX_CX8, X86_CPUID_FEATURE_EDX_CX8); // -> EMU?
5814 CPUID_GST_FEATURE2_IGN( uEdx, X86_CPUID_AMD_FEATURE_EDX_APIC, X86_CPUID_FEATURE_EDX_APIC);
5815 CPUID_GST_AMD_FEATURE_WRN(Ext, uEdx, RT_BIT_32(10) /*reserved*/);
5816 CPUID_GST_FEATURE_IGN( Ext, uEdx, X86_CPUID_EXT_FEATURE_EDX_SYSCALL); // On Intel: long mode only.
5817 CPUID_GST_FEATURE2_IGN( uEdx, X86_CPUID_AMD_FEATURE_EDX_MTRR, X86_CPUID_FEATURE_EDX_MTRR);
5818 CPUID_GST_FEATURE2_IGN( uEdx, X86_CPUID_AMD_FEATURE_EDX_PGE, X86_CPUID_FEATURE_EDX_PGE);
5819 CPUID_GST_FEATURE2_IGN( uEdx, X86_CPUID_AMD_FEATURE_EDX_MCA, X86_CPUID_FEATURE_EDX_MCA);
5820 CPUID_GST_FEATURE2_RET( uEdx, X86_CPUID_AMD_FEATURE_EDX_CMOV, X86_CPUID_FEATURE_EDX_CMOV); // -> EMU
5821 CPUID_GST_FEATURE2_IGN( uEdx, X86_CPUID_AMD_FEATURE_EDX_PAT, X86_CPUID_FEATURE_EDX_PAT);
5822 CPUID_GST_FEATURE2_IGN( uEdx, X86_CPUID_AMD_FEATURE_EDX_PSE36, X86_CPUID_FEATURE_EDX_PSE36);
5823 CPUID_GST_AMD_FEATURE_WRN(Ext, uEdx, RT_BIT_32(18) /*reserved*/);
5824 CPUID_GST_AMD_FEATURE_WRN(Ext, uEdx, RT_BIT_32(19) /*reserved*/);
5825 CPUID_GST_FEATURE_RET( Ext, uEdx, X86_CPUID_EXT_FEATURE_EDX_NX);
5826 CPUID_GST_FEATURE_WRN( Ext, uEdx, RT_BIT_32(21) /*reserved*/);
5827 CPUID_GST_FEATURE_RET( Ext, uEdx, X86_CPUID_AMD_FEATURE_EDX_AXMMX);
5828 CPUID_GST_FEATURE2_RET( uEdx, X86_CPUID_AMD_FEATURE_EDX_MMX, X86_CPUID_FEATURE_EDX_MMX); // -> EMU
5829 CPUID_GST_FEATURE2_RET( uEdx, X86_CPUID_AMD_FEATURE_EDX_FXSR, X86_CPUID_FEATURE_EDX_FXSR); // -> EMU
5830 CPUID_GST_AMD_FEATURE_RET(Ext, uEdx, X86_CPUID_AMD_FEATURE_EDX_FFXSR);
5831 CPUID_GST_AMD_FEATURE_RET(Ext, uEdx, X86_CPUID_EXT_FEATURE_EDX_PAGE1GB);
5832 CPUID_GST_AMD_FEATURE_RET(Ext, uEdx, X86_CPUID_EXT_FEATURE_EDX_RDTSCP);
5833 CPUID_GST_FEATURE_IGN( Ext, uEdx, RT_BIT_32(28) /*reserved*/);
5834 CPUID_GST_FEATURE_RET( Ext, uEdx, X86_CPUID_EXT_FEATURE_EDX_LONG_MODE);
5835 CPUID_GST_AMD_FEATURE_RET(Ext, uEdx, X86_CPUID_AMD_FEATURE_EDX_3DNOW_EX);
5836 CPUID_GST_AMD_FEATURE_RET(Ext, uEdx, X86_CPUID_AMD_FEATURE_EDX_3DNOW);
5837 }
5838
5839 /** @todo check leaf 7 */
5840
5841 /* CPUID(d) - XCR0 stuff - takes ECX as input.
5842 * ECX=0: EAX - Valid bits in XCR0[31:0].
5843 * EBX - Maximum state size as per current XCR0 value.
5844 * ECX - Maximum state size for all supported features.
5845 * EDX - Valid bits in XCR0[63:32].
5846 * ECX=1: EAX - Various X-features.
5847 * EBX - Maximum state size as per current XCR0|IA32_XSS value.
5848 * ECX - Valid bits in IA32_XSS[31:0].
5849 * EDX - Valid bits in IA32_XSS[63:32].
5850 * ECX=N, where N in 2..63 and indicates a bit in XCR0 and/or IA32_XSS,
5851 * if the bit invalid all four registers are set to zero.
5852 * EAX - The state size for this feature.
5853 * EBX - The state byte offset of this feature.
5854 * ECX - Bit 0 indicates whether this sub-leaf maps to a valid IA32_XSS bit (=1) or a valid XCR0 bit (=0).
5855 * EDX - Reserved, but is set to zero if invalid sub-leaf index.
5856 */
5857 uint64_t fGuestXcr0Mask = 0;
5858 PCPUMCPUIDLEAF pCurLeaf = cpumR3CpuIdGetLeaf(paLeaves, cLeaves, UINT32_C(0x0000000d), 0);
5859 if ( pCurLeaf
5860 && (aGuestCpuIdStd[1].uEcx & X86_CPUID_FEATURE_ECX_XSAVE)
5861 && ( pCurLeaf->uEax
5862 || pCurLeaf->uEbx
5863 || pCurLeaf->uEcx
5864 || pCurLeaf->uEdx) )
5865 {
5866 fGuestXcr0Mask = RT_MAKE_U64(pCurLeaf->uEax, pCurLeaf->uEdx);
5867 if (fGuestXcr0Mask & ~pVM->cpum.s.fXStateHostMask)
5868 return SSMR3SetLoadError(pSSM, VERR_SSM_LOAD_CPUID_MISMATCH, RT_SRC_POS,
5869 N_("CPUID(0xd/0).EDX:EAX mismatch: %#llx saved, %#llx supported by the current host (XCR0 bits)"),
5870 fGuestXcr0Mask, pVM->cpum.s.fXStateHostMask);
5871 if ((fGuestXcr0Mask & (XSAVE_C_X87 | XSAVE_C_SSE)) != (XSAVE_C_X87 | XSAVE_C_SSE))
5872 return SSMR3SetLoadError(pSSM, VERR_SSM_LOAD_CPUID_MISMATCH, RT_SRC_POS,
5873 N_("CPUID(0xd/0).EDX:EAX missing mandatory X87 or SSE bits: %#RX64"), fGuestXcr0Mask);
5874
5875 /* We don't support any additional features yet. */
5876 pCurLeaf = cpumR3CpuIdGetLeaf(paLeaves, cLeaves, UINT32_C(0x0000000d), 1);
5877 if (pCurLeaf && pCurLeaf->uEax)
5878 return SSMR3SetLoadError(pSSM, VERR_SSM_LOAD_CPUID_MISMATCH, RT_SRC_POS,
5879 N_("CPUID(0xd/1).EAX=%#x, expected zero"), pCurLeaf->uEax);
5880 if (pCurLeaf && (pCurLeaf->uEcx || pCurLeaf->uEdx))
5881 return SSMR3SetLoadError(pSSM, VERR_SSM_LOAD_CPUID_MISMATCH, RT_SRC_POS,
5882 N_("CPUID(0xd/1).EDX:ECX=%#llx, expected zero"),
5883 RT_MAKE_U64(pCurLeaf->uEdx, pCurLeaf->uEcx));
5884
5885
5886 for (uint32_t uSubLeaf = 2; uSubLeaf < 64; uSubLeaf++)
5887 {
5888 pCurLeaf = cpumR3CpuIdGetLeaf(paLeaves, cLeaves, UINT32_C(0x0000000d), uSubLeaf);
5889 if (pCurLeaf)
5890 {
5891 /* If advertised, the state component offset and size must match the one used by host. */
5892 if (pCurLeaf->uEax || pCurLeaf->uEbx || pCurLeaf->uEcx || pCurLeaf->uEdx)
5893 {
5894 CPUMCPUID RawHost;
5895 ASMCpuIdExSlow(UINT32_C(0x0000000d), 0, uSubLeaf, 0,
5896 &RawHost.uEax, &RawHost.uEbx, &RawHost.uEcx, &RawHost.uEdx);
5897 if ( RawHost.uEbx != pCurLeaf->uEbx
5898 || RawHost.uEax != pCurLeaf->uEax)
5899 return SSMR3SetLoadError(pSSM, VERR_SSM_LOAD_CPUID_MISMATCH, RT_SRC_POS,
5900 N_("CPUID(0xd/%#x).EBX/EAX=%#x/%#x, current host uses %#x/%#x (offset/size)"),
5901 uSubLeaf, pCurLeaf->uEbx, pCurLeaf->uEax, RawHost.uEbx, RawHost.uEax);
5902 }
5903 }
5904 }
5905 }
5906 /* Clear leaf 0xd just in case we're loading an old state... */
5907 else if (pCurLeaf)
5908 {
5909 for (uint32_t uSubLeaf = 0; uSubLeaf < 64; uSubLeaf++)
5910 {
5911 pCurLeaf = cpumR3CpuIdGetLeaf(paLeaves, cLeaves, UINT32_C(0x0000000d), uSubLeaf);
5912 if (pCurLeaf)
5913 {
5914 AssertLogRelMsg( uVersion <= CPUM_SAVED_STATE_VERSION_PUT_STRUCT
5915 || ( pCurLeaf->uEax == 0
5916 && pCurLeaf->uEbx == 0
5917 && pCurLeaf->uEcx == 0
5918 && pCurLeaf->uEdx == 0),
5919 ("uVersion=%#x; %#x %#x %#x %#x\n",
5920 uVersion, pCurLeaf->uEax, pCurLeaf->uEbx, pCurLeaf->uEcx, pCurLeaf->uEdx));
5921 pCurLeaf->uEax = pCurLeaf->uEbx = pCurLeaf->uEcx = pCurLeaf->uEdx = 0;
5922 }
5923 }
5924 }
5925
5926 /* Update the fXStateGuestMask value for the VM. */
5927 if (pVM->cpum.s.fXStateGuestMask != fGuestXcr0Mask)
5928 {
5929 LogRel(("CPUM: fXStateGuestMask=%#llx -> %#llx\n", pVM->cpum.s.fXStateGuestMask, fGuestXcr0Mask));
5930 pVM->cpum.s.fXStateGuestMask = fGuestXcr0Mask;
5931 if (!fGuestXcr0Mask && (aGuestCpuIdStd[1].uEcx & X86_CPUID_FEATURE_ECX_XSAVE))
5932 return SSMR3SetLoadError(pSSM, VERR_SSM_LOAD_CPUID_MISMATCH, RT_SRC_POS,
5933 N_("Internal Processing Error: XSAVE feature bit enabled, but leaf 0xd is empty."));
5934 }
5935
5936#undef CPUID_CHECK_RET
5937#undef CPUID_CHECK_WRN
5938#undef CPUID_CHECK2_RET
5939#undef CPUID_CHECK2_WRN
5940#undef CPUID_RAW_FEATURE_RET
5941#undef CPUID_RAW_FEATURE_WRN
5942#undef CPUID_RAW_FEATURE_IGN
5943#undef CPUID_GST_FEATURE_RET
5944#undef CPUID_GST_FEATURE_WRN
5945#undef CPUID_GST_FEATURE_EMU
5946#undef CPUID_GST_FEATURE_IGN
5947#undef CPUID_GST_FEATURE2_RET
5948#undef CPUID_GST_FEATURE2_WRN
5949#undef CPUID_GST_FEATURE2_EMU
5950#undef CPUID_GST_FEATURE2_IGN
5951#undef CPUID_GST_AMD_FEATURE_RET
5952#undef CPUID_GST_AMD_FEATURE_WRN
5953#undef CPUID_GST_AMD_FEATURE_EMU
5954#undef CPUID_GST_AMD_FEATURE_IGN
5955
5956 /*
5957 * We're good, commit the CPU ID leaves.
5958 */
5959 MMHyperFree(pVM, pVM->cpum.s.GuestInfo.paCpuIdLeavesR3);
5960 pVM->cpum.s.GuestInfo.paCpuIdLeavesR3 = NULL;
5961 pVM->cpum.s.GuestInfo.paCpuIdLeavesR0 = NIL_RTR0PTR;
5962 pVM->cpum.s.GuestInfo.DefCpuId = GuestDefCpuId;
5963 rc = cpumR3CpuIdInstallAndExplodeLeaves(pVM, &pVM->cpum.s, paLeaves, cLeaves, pMsrs);
5964 AssertLogRelRCReturn(rc, rc);
5965
5966 return VINF_SUCCESS;
5967}
5968
5969
5970/**
5971 * Loads the CPU ID leaves saved by pass 0.
5972 *
5973 * @returns VBox status code.
5974 * @param pVM The cross context VM structure.
5975 * @param pSSM The saved state handle.
5976 * @param uVersion The format version.
5977 * @param pMsrs The guest MSRs.
5978 */
5979int cpumR3LoadCpuId(PVM pVM, PSSMHANDLE pSSM, uint32_t uVersion, PCCPUMMSRS pMsrs)
5980{
5981 AssertMsgReturn(uVersion >= CPUM_SAVED_STATE_VERSION_VER3_2, ("%u\n", uVersion), VERR_SSM_UNSUPPORTED_DATA_UNIT_VERSION);
5982
5983 /*
5984 * Load the CPUID leaves array first and call worker to do the rest, just so
5985 * we can free the memory when we need to without ending up in column 1000.
5986 */
5987 PCPUMCPUIDLEAF paLeaves;
5988 uint32_t cLeaves;
5989 int rc = cpumR3LoadGuestCpuIdArray(pVM, pSSM, uVersion, &paLeaves, &cLeaves);
5990 AssertRC(rc);
5991 if (RT_SUCCESS(rc))
5992 {
5993 rc = cpumR3LoadCpuIdInner(pVM, pSSM, uVersion, paLeaves, cLeaves, pMsrs);
5994 RTMemFree(paLeaves);
5995 }
5996 return rc;
5997}
5998
5999
6000
6001/**
6002 * Loads the CPU ID leaves saved by pass 0 in an pre 3.2 saved state.
6003 *
6004 * @returns VBox status code.
6005 * @param pVM The cross context VM structure.
6006 * @param pSSM The saved state handle.
6007 * @param uVersion The format version.
6008 */
6009int cpumR3LoadCpuIdPre32(PVM pVM, PSSMHANDLE pSSM, uint32_t uVersion)
6010{
6011 AssertMsgReturn(uVersion < CPUM_SAVED_STATE_VERSION_VER3_2, ("%u\n", uVersion), VERR_SSM_UNSUPPORTED_DATA_UNIT_VERSION);
6012
6013 /*
6014 * Restore the CPUID leaves.
6015 *
6016 * Note that we support restoring less than the current amount of standard
6017 * leaves because we've been allowed more is newer version of VBox.
6018 */
6019 uint32_t cElements;
6020 int rc = SSMR3GetU32(pSSM, &cElements); AssertRCReturn(rc, rc);
6021 if (cElements > RT_ELEMENTS(pVM->cpum.s.aGuestCpuIdPatmStd))
6022 return VERR_SSM_DATA_UNIT_FORMAT_CHANGED;
6023 SSMR3GetMem(pSSM, &pVM->cpum.s.aGuestCpuIdPatmStd[0], cElements*sizeof(pVM->cpum.s.aGuestCpuIdPatmStd[0]));
6024
6025 rc = SSMR3GetU32(pSSM, &cElements); AssertRCReturn(rc, rc);
6026 if (cElements != RT_ELEMENTS(pVM->cpum.s.aGuestCpuIdPatmExt))
6027 return VERR_SSM_DATA_UNIT_FORMAT_CHANGED;
6028 SSMR3GetMem(pSSM, &pVM->cpum.s.aGuestCpuIdPatmExt[0], sizeof(pVM->cpum.s.aGuestCpuIdPatmExt));
6029
6030 rc = SSMR3GetU32(pSSM, &cElements); AssertRCReturn(rc, rc);
6031 if (cElements != RT_ELEMENTS(pVM->cpum.s.aGuestCpuIdPatmCentaur))
6032 return VERR_SSM_DATA_UNIT_FORMAT_CHANGED;
6033 SSMR3GetMem(pSSM, &pVM->cpum.s.aGuestCpuIdPatmCentaur[0], sizeof(pVM->cpum.s.aGuestCpuIdPatmCentaur));
6034
6035 SSMR3GetMem(pSSM, &pVM->cpum.s.GuestInfo.DefCpuId, sizeof(pVM->cpum.s.GuestInfo.DefCpuId));
6036
6037 /*
6038 * Check that the basic cpuid id information is unchanged.
6039 */
6040 /** @todo we should check the 64 bits capabilities too! */
6041 uint32_t au32CpuId[8] = {0,0,0,0, 0,0,0,0};
6042 ASMCpuIdExSlow(0, 0, 0, 0, &au32CpuId[0], &au32CpuId[1], &au32CpuId[2], &au32CpuId[3]);
6043 ASMCpuIdExSlow(1, 0, 0, 0, &au32CpuId[4], &au32CpuId[5], &au32CpuId[6], &au32CpuId[7]);
6044 uint32_t au32CpuIdSaved[8];
6045 rc = SSMR3GetMem(pSSM, &au32CpuIdSaved[0], sizeof(au32CpuIdSaved));
6046 if (RT_SUCCESS(rc))
6047 {
6048 /* Ignore CPU stepping. */
6049 au32CpuId[4] &= 0xfffffff0;
6050 au32CpuIdSaved[4] &= 0xfffffff0;
6051
6052 /* Ignore APIC ID (AMD specs). */
6053 au32CpuId[5] &= ~0xff000000;
6054 au32CpuIdSaved[5] &= ~0xff000000;
6055
6056 /* Ignore the number of Logical CPUs (AMD specs). */
6057 au32CpuId[5] &= ~0x00ff0000;
6058 au32CpuIdSaved[5] &= ~0x00ff0000;
6059
6060 /* Ignore some advanced capability bits, that we don't expose to the guest. */
6061 au32CpuId[6] &= ~( X86_CPUID_FEATURE_ECX_DTES64
6062 | X86_CPUID_FEATURE_ECX_VMX
6063 | X86_CPUID_FEATURE_ECX_SMX
6064 | X86_CPUID_FEATURE_ECX_EST
6065 | X86_CPUID_FEATURE_ECX_TM2
6066 | X86_CPUID_FEATURE_ECX_CNTXID
6067 | X86_CPUID_FEATURE_ECX_TPRUPDATE
6068 | X86_CPUID_FEATURE_ECX_PDCM
6069 | X86_CPUID_FEATURE_ECX_DCA
6070 | X86_CPUID_FEATURE_ECX_X2APIC
6071 );
6072 au32CpuIdSaved[6] &= ~( X86_CPUID_FEATURE_ECX_DTES64
6073 | X86_CPUID_FEATURE_ECX_VMX
6074 | X86_CPUID_FEATURE_ECX_SMX
6075 | X86_CPUID_FEATURE_ECX_EST
6076 | X86_CPUID_FEATURE_ECX_TM2
6077 | X86_CPUID_FEATURE_ECX_CNTXID
6078 | X86_CPUID_FEATURE_ECX_TPRUPDATE
6079 | X86_CPUID_FEATURE_ECX_PDCM
6080 | X86_CPUID_FEATURE_ECX_DCA
6081 | X86_CPUID_FEATURE_ECX_X2APIC
6082 );
6083
6084 /* Make sure we don't forget to update the masks when enabling
6085 * features in the future.
6086 */
6087 AssertRelease(!(pVM->cpum.s.aGuestCpuIdPatmStd[1].uEcx &
6088 ( X86_CPUID_FEATURE_ECX_DTES64
6089 | X86_CPUID_FEATURE_ECX_VMX
6090 | X86_CPUID_FEATURE_ECX_SMX
6091 | X86_CPUID_FEATURE_ECX_EST
6092 | X86_CPUID_FEATURE_ECX_TM2
6093 | X86_CPUID_FEATURE_ECX_CNTXID
6094 | X86_CPUID_FEATURE_ECX_TPRUPDATE
6095 | X86_CPUID_FEATURE_ECX_PDCM
6096 | X86_CPUID_FEATURE_ECX_DCA
6097 | X86_CPUID_FEATURE_ECX_X2APIC
6098 )));
6099 /* do the compare */
6100 if (memcmp(au32CpuIdSaved, au32CpuId, sizeof(au32CpuIdSaved)))
6101 {
6102 if (SSMR3HandleGetAfter(pSSM) == SSMAFTER_DEBUG_IT)
6103 LogRel(("cpumR3LoadExec: CpuId mismatch! (ignored due to SSMAFTER_DEBUG_IT)\n"
6104 "Saved=%.*Rhxs\n"
6105 "Real =%.*Rhxs\n",
6106 sizeof(au32CpuIdSaved), au32CpuIdSaved,
6107 sizeof(au32CpuId), au32CpuId));
6108 else
6109 {
6110 LogRel(("cpumR3LoadExec: CpuId mismatch!\n"
6111 "Saved=%.*Rhxs\n"
6112 "Real =%.*Rhxs\n",
6113 sizeof(au32CpuIdSaved), au32CpuIdSaved,
6114 sizeof(au32CpuId), au32CpuId));
6115 rc = VERR_SSM_LOAD_CPUID_MISMATCH;
6116 }
6117 }
6118 }
6119
6120 return rc;
6121}
6122
6123
6124
6125/*
6126 *
6127 *
6128 * CPUID Info Handler.
6129 * CPUID Info Handler.
6130 * CPUID Info Handler.
6131 *
6132 *
6133 */
6134
6135
6136
6137/**
6138 * Get L1 cache / TLS associativity.
6139 */
6140static const char *getCacheAss(unsigned u, char *pszBuf)
6141{
6142 if (u == 0)
6143 return "res0 ";
6144 if (u == 1)
6145 return "direct";
6146 if (u == 255)
6147 return "fully";
6148 if (u >= 256)
6149 return "???";
6150
6151 RTStrPrintf(pszBuf, 16, "%d way", u);
6152 return pszBuf;
6153}
6154
6155
6156/**
6157 * Get L2 cache associativity.
6158 */
6159const char *getL2CacheAss(unsigned u)
6160{
6161 switch (u)
6162 {
6163 case 0: return "off ";
6164 case 1: return "direct";
6165 case 2: return "2 way ";
6166 case 3: return "res3 ";
6167 case 4: return "4 way ";
6168 case 5: return "res5 ";
6169 case 6: return "8 way ";
6170 case 7: return "res7 ";
6171 case 8: return "16 way";
6172 case 9: return "res9 ";
6173 case 10: return "res10 ";
6174 case 11: return "res11 ";
6175 case 12: return "res12 ";
6176 case 13: return "res13 ";
6177 case 14: return "res14 ";
6178 case 15: return "fully ";
6179 default: return "????";
6180 }
6181}
6182
6183
6184/** CPUID(1).EDX field descriptions. */
6185static DBGFREGSUBFIELD const g_aLeaf1EdxSubFields[] =
6186{
6187 DBGFREGSUBFIELD_RO("FPU\0" "x87 FPU on Chip", 0, 1, 0),
6188 DBGFREGSUBFIELD_RO("VME\0" "Virtual 8086 Mode Enhancements", 1, 1, 0),
6189 DBGFREGSUBFIELD_RO("DE\0" "Debugging extensions", 2, 1, 0),
6190 DBGFREGSUBFIELD_RO("PSE\0" "Page Size Extension", 3, 1, 0),
6191 DBGFREGSUBFIELD_RO("TSC\0" "Time Stamp Counter", 4, 1, 0),
6192 DBGFREGSUBFIELD_RO("MSR\0" "Model Specific Registers", 5, 1, 0),
6193 DBGFREGSUBFIELD_RO("PAE\0" "Physical Address Extension", 6, 1, 0),
6194 DBGFREGSUBFIELD_RO("MCE\0" "Machine Check Exception", 7, 1, 0),
6195 DBGFREGSUBFIELD_RO("CX8\0" "CMPXCHG8B instruction", 8, 1, 0),
6196 DBGFREGSUBFIELD_RO("APIC\0" "APIC On-Chip", 9, 1, 0),
6197 DBGFREGSUBFIELD_RO("SEP\0" "SYSENTER and SYSEXIT Present", 11, 1, 0),
6198 DBGFREGSUBFIELD_RO("MTRR\0" "Memory Type Range Registers", 12, 1, 0),
6199 DBGFREGSUBFIELD_RO("PGE\0" "PTE Global Bit", 13, 1, 0),
6200 DBGFREGSUBFIELD_RO("MCA\0" "Machine Check Architecture", 14, 1, 0),
6201 DBGFREGSUBFIELD_RO("CMOV\0" "Conditional Move instructions", 15, 1, 0),
6202 DBGFREGSUBFIELD_RO("PAT\0" "Page Attribute Table", 16, 1, 0),
6203 DBGFREGSUBFIELD_RO("PSE-36\0" "36-bit Page Size Extension", 17, 1, 0),
6204 DBGFREGSUBFIELD_RO("PSN\0" "Processor Serial Number", 18, 1, 0),
6205 DBGFREGSUBFIELD_RO("CLFSH\0" "CLFLUSH instruction", 19, 1, 0),
6206 DBGFREGSUBFIELD_RO("DS\0" "Debug Store", 21, 1, 0),
6207 DBGFREGSUBFIELD_RO("ACPI\0" "Thermal Mon. & Soft. Clock Ctrl.", 22, 1, 0),
6208 DBGFREGSUBFIELD_RO("MMX\0" "Intel MMX Technology", 23, 1, 0),
6209 DBGFREGSUBFIELD_RO("FXSR\0" "FXSAVE and FXRSTOR instructions", 24, 1, 0),
6210 DBGFREGSUBFIELD_RO("SSE\0" "SSE support", 25, 1, 0),
6211 DBGFREGSUBFIELD_RO("SSE2\0" "SSE2 support", 26, 1, 0),
6212 DBGFREGSUBFIELD_RO("SS\0" "Self Snoop", 27, 1, 0),
6213 DBGFREGSUBFIELD_RO("HTT\0" "Hyper-Threading Technology", 28, 1, 0),
6214 DBGFREGSUBFIELD_RO("TM\0" "Therm. Monitor", 29, 1, 0),
6215 DBGFREGSUBFIELD_RO("PBE\0" "Pending Break Enabled", 31, 1, 0),
6216 DBGFREGSUBFIELD_TERMINATOR()
6217};
6218
6219/** CPUID(1).ECX field descriptions. */
6220static DBGFREGSUBFIELD const g_aLeaf1EcxSubFields[] =
6221{
6222 DBGFREGSUBFIELD_RO("SSE3\0" "SSE3 support", 0, 1, 0),
6223 DBGFREGSUBFIELD_RO("PCLMUL\0" "PCLMULQDQ support (for AES-GCM)", 1, 1, 0),
6224 DBGFREGSUBFIELD_RO("DTES64\0" "DS Area 64-bit Layout", 2, 1, 0),
6225 DBGFREGSUBFIELD_RO("MONITOR\0" "MONITOR/MWAIT instructions", 3, 1, 0),
6226 DBGFREGSUBFIELD_RO("CPL-DS\0" "CPL Qualified Debug Store", 4, 1, 0),
6227 DBGFREGSUBFIELD_RO("VMX\0" "Virtual Machine Extensions", 5, 1, 0),
6228 DBGFREGSUBFIELD_RO("SMX\0" "Safer Mode Extensions", 6, 1, 0),
6229 DBGFREGSUBFIELD_RO("EST\0" "Enhanced SpeedStep Technology", 7, 1, 0),
6230 DBGFREGSUBFIELD_RO("TM2\0" "Terminal Monitor 2", 8, 1, 0),
6231 DBGFREGSUBFIELD_RO("SSSE3\0" "Supplemental Streaming SIMD Extensions 3", 9, 1, 0),
6232 DBGFREGSUBFIELD_RO("CNTX-ID\0" "L1 Context ID", 10, 1, 0),
6233 DBGFREGSUBFIELD_RO("SDBG\0" "Silicon Debug interface", 11, 1, 0),
6234 DBGFREGSUBFIELD_RO("FMA\0" "Fused Multiply Add extensions", 12, 1, 0),
6235 DBGFREGSUBFIELD_RO("CX16\0" "CMPXCHG16B instruction", 13, 1, 0),
6236 DBGFREGSUBFIELD_RO("TPRUPDATE\0" "xTPR Update Control", 14, 1, 0),
6237 DBGFREGSUBFIELD_RO("PDCM\0" "Perf/Debug Capability MSR", 15, 1, 0),
6238 DBGFREGSUBFIELD_RO("PCID\0" "Process Context Identifiers", 17, 1, 0),
6239 DBGFREGSUBFIELD_RO("DCA\0" "Direct Cache Access", 18, 1, 0),
6240 DBGFREGSUBFIELD_RO("SSE4_1\0" "SSE4_1 support", 19, 1, 0),
6241 DBGFREGSUBFIELD_RO("SSE4_2\0" "SSE4_2 support", 20, 1, 0),
6242 DBGFREGSUBFIELD_RO("X2APIC\0" "x2APIC support", 21, 1, 0),
6243 DBGFREGSUBFIELD_RO("MOVBE\0" "MOVBE instruction", 22, 1, 0),
6244 DBGFREGSUBFIELD_RO("POPCNT\0" "POPCNT instruction", 23, 1, 0),
6245 DBGFREGSUBFIELD_RO("TSCDEADL\0" "Time Stamp Counter Deadline", 24, 1, 0),
6246 DBGFREGSUBFIELD_RO("AES\0" "AES instructions", 25, 1, 0),
6247 DBGFREGSUBFIELD_RO("XSAVE\0" "XSAVE instruction", 26, 1, 0),
6248 DBGFREGSUBFIELD_RO("OSXSAVE\0" "OSXSAVE instruction", 27, 1, 0),
6249 DBGFREGSUBFIELD_RO("AVX\0" "AVX support", 28, 1, 0),
6250 DBGFREGSUBFIELD_RO("F16C\0" "16-bit floating point conversion instructions", 29, 1, 0),
6251 DBGFREGSUBFIELD_RO("RDRAND\0" "RDRAND instruction", 30, 1, 0),
6252 DBGFREGSUBFIELD_RO("HVP\0" "Hypervisor Present (we're a guest)", 31, 1, 0),
6253 DBGFREGSUBFIELD_TERMINATOR()
6254};
6255
6256/** CPUID(7,0).EBX field descriptions. */
6257static DBGFREGSUBFIELD const g_aLeaf7Sub0EbxSubFields[] =
6258{
6259 DBGFREGSUBFIELD_RO("FSGSBASE\0" "RDFSBASE/RDGSBASE/WRFSBASE/WRGSBASE instr.", 0, 1, 0),
6260 DBGFREGSUBFIELD_RO("TSCADJUST\0" "Supports MSR_IA32_TSC_ADJUST", 1, 1, 0),
6261 DBGFREGSUBFIELD_RO("SGX\0" "Supports Software Guard Extensions", 2, 1, 0),
6262 DBGFREGSUBFIELD_RO("BMI1\0" "Advanced Bit Manipulation extension 1", 3, 1, 0),
6263 DBGFREGSUBFIELD_RO("HLE\0" "Hardware Lock Elision", 4, 1, 0),
6264 DBGFREGSUBFIELD_RO("AVX2\0" "Advanced Vector Extensions 2", 5, 1, 0),
6265 DBGFREGSUBFIELD_RO("FDP_EXCPTN_ONLY\0" "FPU DP only updated on exceptions", 6, 1, 0),
6266 DBGFREGSUBFIELD_RO("SMEP\0" "Supervisor Mode Execution Prevention", 7, 1, 0),
6267 DBGFREGSUBFIELD_RO("BMI2\0" "Advanced Bit Manipulation extension 2", 8, 1, 0),
6268 DBGFREGSUBFIELD_RO("ERMS\0" "Enhanced REP MOVSB/STOSB instructions", 9, 1, 0),
6269 DBGFREGSUBFIELD_RO("INVPCID\0" "INVPCID instruction", 10, 1, 0),
6270 DBGFREGSUBFIELD_RO("RTM\0" "Restricted Transactional Memory", 11, 1, 0),
6271 DBGFREGSUBFIELD_RO("PQM\0" "Platform Quality of Service Monitoring", 12, 1, 0),
6272 DBGFREGSUBFIELD_RO("DEPFPU_CS_DS\0" "Deprecates FPU CS, FPU DS values if set", 13, 1, 0),
6273 DBGFREGSUBFIELD_RO("MPE\0" "Intel Memory Protection Extensions", 14, 1, 0),
6274 DBGFREGSUBFIELD_RO("PQE\0" "Platform Quality of Service Enforcement", 15, 1, 0),
6275 DBGFREGSUBFIELD_RO("AVX512F\0" "AVX512 Foundation instructions", 16, 1, 0),
6276 DBGFREGSUBFIELD_RO("RDSEED\0" "RDSEED instruction", 18, 1, 0),
6277 DBGFREGSUBFIELD_RO("ADX\0" "ADCX/ADOX instructions", 19, 1, 0),
6278 DBGFREGSUBFIELD_RO("SMAP\0" "Supervisor Mode Access Prevention", 20, 1, 0),
6279 DBGFREGSUBFIELD_RO("CLFLUSHOPT\0" "CLFLUSHOPT (Cache Line Flush) instruction", 23, 1, 0),
6280 DBGFREGSUBFIELD_RO("INTEL_PT\0" "Intel Processor Trace", 25, 1, 0),
6281 DBGFREGSUBFIELD_RO("AVX512PF\0" "AVX512 Prefetch instructions", 26, 1, 0),
6282 DBGFREGSUBFIELD_RO("AVX512ER\0" "AVX512 Exponential & Reciprocal instructions", 27, 1, 0),
6283 DBGFREGSUBFIELD_RO("AVX512CD\0" "AVX512 Conflict Detection instructions", 28, 1, 0),
6284 DBGFREGSUBFIELD_RO("SHA\0" "Secure Hash Algorithm extensions", 29, 1, 0),
6285 DBGFREGSUBFIELD_TERMINATOR()
6286};
6287
6288/** CPUID(7,0).ECX field descriptions. */
6289static DBGFREGSUBFIELD const g_aLeaf7Sub0EcxSubFields[] =
6290{
6291 DBGFREGSUBFIELD_RO("PREFETCHWT1\0" "PREFETCHWT1 instruction", 0, 1, 0),
6292 DBGFREGSUBFIELD_RO("UMIP\0" "User mode insturction prevention", 2, 1, 0),
6293 DBGFREGSUBFIELD_RO("PKU\0" "Protection Key for Usermode pages", 3, 1, 0),
6294 DBGFREGSUBFIELD_RO("OSPKE\0" "CR4.PKU mirror", 4, 1, 0),
6295 DBGFREGSUBFIELD_RO("MAWAU\0" "Value used by BNDLDX & BNDSTX", 17, 5, 0),
6296 DBGFREGSUBFIELD_RO("RDPID\0" "Read processor ID support", 22, 1, 0),
6297 DBGFREGSUBFIELD_RO("SGX_LC\0" "Supports SGX Launch Configuration", 30, 1, 0),
6298 DBGFREGSUBFIELD_TERMINATOR()
6299};
6300
6301/** CPUID(7,0).EDX field descriptions. */
6302static DBGFREGSUBFIELD const g_aLeaf7Sub0EdxSubFields[] =
6303{
6304 DBGFREGSUBFIELD_RO("MD_CLEAR\0" "Supports MDS related buffer clearing", 10, 1, 0),
6305 DBGFREGSUBFIELD_RO("IBRS_IBPB\0" "IA32_SPEC_CTRL.IBRS and IA32_PRED_CMD.IBPB", 26, 1, 0),
6306 DBGFREGSUBFIELD_RO("STIBP\0" "Supports IA32_SPEC_CTRL.STIBP", 27, 1, 0),
6307 DBGFREGSUBFIELD_RO("FLUSH_CMD\0" "Supports IA32_FLUSH_CMD", 28, 1, 0),
6308 DBGFREGSUBFIELD_RO("ARCHCAP\0" "Supports IA32_ARCH_CAP", 29, 1, 0),
6309 DBGFREGSUBFIELD_RO("CORECAP\0" "Supports IA32_CORE_CAP", 30, 1, 0),
6310 DBGFREGSUBFIELD_RO("SSBD\0" "Supports IA32_SPEC_CTRL.SSBD", 31, 1, 0),
6311 DBGFREGSUBFIELD_TERMINATOR()
6312};
6313
6314
6315/** CPUID(13,0).EAX+EDX, XCR0, ++ bit descriptions. */
6316static DBGFREGSUBFIELD const g_aXSaveStateBits[] =
6317{
6318 DBGFREGSUBFIELD_RO("x87\0" "Legacy FPU state", 0, 1, 0),
6319 DBGFREGSUBFIELD_RO("SSE\0" "128-bit SSE state", 1, 1, 0),
6320 DBGFREGSUBFIELD_RO("YMM_Hi128\0" "Upper 128 bits of YMM0-15 (AVX)", 2, 1, 0),
6321 DBGFREGSUBFIELD_RO("BNDREGS\0" "MPX bound register state", 3, 1, 0),
6322 DBGFREGSUBFIELD_RO("BNDCSR\0" "MPX bound config and status state", 4, 1, 0),
6323 DBGFREGSUBFIELD_RO("Opmask\0" "opmask state", 5, 1, 0),
6324 DBGFREGSUBFIELD_RO("ZMM_Hi256\0" "Upper 256 bits of ZMM0-15 (AVX-512)", 6, 1, 0),
6325 DBGFREGSUBFIELD_RO("Hi16_ZMM\0" "512-bits ZMM16-31 state (AVX-512)", 7, 1, 0),
6326 DBGFREGSUBFIELD_RO("LWP\0" "Lightweight Profiling (AMD)", 62, 1, 0),
6327 DBGFREGSUBFIELD_TERMINATOR()
6328};
6329
6330/** CPUID(13,1).EAX field descriptions. */
6331static DBGFREGSUBFIELD const g_aLeaf13Sub1EaxSubFields[] =
6332{
6333 DBGFREGSUBFIELD_RO("XSAVEOPT\0" "XSAVEOPT is available", 0, 1, 0),
6334 DBGFREGSUBFIELD_RO("XSAVEC\0" "XSAVEC and compacted XRSTOR supported", 1, 1, 0),
6335 DBGFREGSUBFIELD_RO("XGETBC1\0" "XGETBV with ECX=1 supported", 2, 1, 0),
6336 DBGFREGSUBFIELD_RO("XSAVES\0" "XSAVES/XRSTORS and IA32_XSS supported", 3, 1, 0),
6337 DBGFREGSUBFIELD_TERMINATOR()
6338};
6339
6340
6341/** CPUID(0x80000001,0).EDX field descriptions. */
6342static DBGFREGSUBFIELD const g_aExtLeaf1EdxSubFields[] =
6343{
6344 DBGFREGSUBFIELD_RO("FPU\0" "x87 FPU on Chip", 0, 1, 0),
6345 DBGFREGSUBFIELD_RO("VME\0" "Virtual 8086 Mode Enhancements", 1, 1, 0),
6346 DBGFREGSUBFIELD_RO("DE\0" "Debugging extensions", 2, 1, 0),
6347 DBGFREGSUBFIELD_RO("PSE\0" "Page Size Extension", 3, 1, 0),
6348 DBGFREGSUBFIELD_RO("TSC\0" "Time Stamp Counter", 4, 1, 0),
6349 DBGFREGSUBFIELD_RO("MSR\0" "K86 Model Specific Registers", 5, 1, 0),
6350 DBGFREGSUBFIELD_RO("PAE\0" "Physical Address Extension", 6, 1, 0),
6351 DBGFREGSUBFIELD_RO("MCE\0" "Machine Check Exception", 7, 1, 0),
6352 DBGFREGSUBFIELD_RO("CX8\0" "CMPXCHG8B instruction", 8, 1, 0),
6353 DBGFREGSUBFIELD_RO("APIC\0" "APIC On-Chip", 9, 1, 0),
6354 DBGFREGSUBFIELD_RO("SEP\0" "SYSCALL/SYSRET", 11, 1, 0),
6355 DBGFREGSUBFIELD_RO("MTRR\0" "Memory Type Range Registers", 12, 1, 0),
6356 DBGFREGSUBFIELD_RO("PGE\0" "PTE Global Bit", 13, 1, 0),
6357 DBGFREGSUBFIELD_RO("MCA\0" "Machine Check Architecture", 14, 1, 0),
6358 DBGFREGSUBFIELD_RO("CMOV\0" "Conditional Move instructions", 15, 1, 0),
6359 DBGFREGSUBFIELD_RO("PAT\0" "Page Attribute Table", 16, 1, 0),
6360 DBGFREGSUBFIELD_RO("PSE-36\0" "36-bit Page Size Extension", 17, 1, 0),
6361 DBGFREGSUBFIELD_RO("NX\0" "No-Execute/Execute-Disable", 20, 1, 0),
6362 DBGFREGSUBFIELD_RO("AXMMX\0" "AMD Extensions to MMX instructions", 22, 1, 0),
6363 DBGFREGSUBFIELD_RO("MMX\0" "Intel MMX Technology", 23, 1, 0),
6364 DBGFREGSUBFIELD_RO("FXSR\0" "FXSAVE and FXRSTOR Instructions", 24, 1, 0),
6365 DBGFREGSUBFIELD_RO("FFXSR\0" "AMD fast FXSAVE and FXRSTOR instructions", 25, 1, 0),
6366 DBGFREGSUBFIELD_RO("Page1GB\0" "1 GB large page", 26, 1, 0),
6367 DBGFREGSUBFIELD_RO("RDTSCP\0" "RDTSCP instruction", 27, 1, 0),
6368 DBGFREGSUBFIELD_RO("LM\0" "AMD64 Long Mode", 29, 1, 0),
6369 DBGFREGSUBFIELD_RO("3DNOWEXT\0" "AMD Extensions to 3DNow", 30, 1, 0),
6370 DBGFREGSUBFIELD_RO("3DNOW\0" "AMD 3DNow", 31, 1, 0),
6371 DBGFREGSUBFIELD_TERMINATOR()
6372};
6373
6374/** CPUID(0x80000001,0).ECX field descriptions. */
6375static DBGFREGSUBFIELD const g_aExtLeaf1EcxSubFields[] =
6376{
6377 DBGFREGSUBFIELD_RO("LahfSahf\0" "LAHF/SAHF support in 64-bit mode", 0, 1, 0),
6378 DBGFREGSUBFIELD_RO("CmpLegacy\0" "Core multi-processing legacy mode", 1, 1, 0),
6379 DBGFREGSUBFIELD_RO("SVM\0" "AMD Secure Virtual Machine extensions", 2, 1, 0),
6380 DBGFREGSUBFIELD_RO("EXTAPIC\0" "AMD Extended APIC registers", 3, 1, 0),
6381 DBGFREGSUBFIELD_RO("CR8L\0" "AMD LOCK MOV CR0 means MOV CR8", 4, 1, 0),
6382 DBGFREGSUBFIELD_RO("ABM\0" "AMD Advanced Bit Manipulation", 5, 1, 0),
6383 DBGFREGSUBFIELD_RO("SSE4A\0" "SSE4A instructions", 6, 1, 0),
6384 DBGFREGSUBFIELD_RO("MISALIGNSSE\0" "AMD Misaligned SSE mode", 7, 1, 0),
6385 DBGFREGSUBFIELD_RO("3DNOWPRF\0" "AMD PREFETCH and PREFETCHW instructions", 8, 1, 0),
6386 DBGFREGSUBFIELD_RO("OSVW\0" "AMD OS Visible Workaround", 9, 1, 0),
6387 DBGFREGSUBFIELD_RO("IBS\0" "Instruct Based Sampling", 10, 1, 0),
6388 DBGFREGSUBFIELD_RO("XOP\0" "Extended Operation support", 11, 1, 0),
6389 DBGFREGSUBFIELD_RO("SKINIT\0" "SKINIT, STGI, and DEV support", 12, 1, 0),
6390 DBGFREGSUBFIELD_RO("WDT\0" "AMD Watchdog Timer support", 13, 1, 0),
6391 DBGFREGSUBFIELD_RO("LWP\0" "Lightweight Profiling support", 15, 1, 0),
6392 DBGFREGSUBFIELD_RO("FMA4\0" "Four operand FMA instruction support", 16, 1, 0),
6393 DBGFREGSUBFIELD_RO("NodeId\0" "NodeId in MSR C001_100C", 19, 1, 0),
6394 DBGFREGSUBFIELD_RO("TBM\0" "Trailing Bit Manipulation instructions", 21, 1, 0),
6395 DBGFREGSUBFIELD_RO("TOPOEXT\0" "Topology Extensions", 22, 1, 0),
6396 DBGFREGSUBFIELD_RO("PRFEXTCORE\0" "Performance Counter Extensions support", 23, 1, 0),
6397 DBGFREGSUBFIELD_RO("PRFEXTNB\0" "NB Performance Counter Extensions support", 24, 1, 0),
6398 DBGFREGSUBFIELD_RO("DATABPEXT\0" "Data-access Breakpoint Extension", 26, 1, 0),
6399 DBGFREGSUBFIELD_RO("PERFTSC\0" "Performance Time Stamp Counter", 27, 1, 0),
6400 DBGFREGSUBFIELD_RO("PCX_L2I\0" "L2I/L3 Performance Counter Extensions", 28, 1, 0),
6401 DBGFREGSUBFIELD_RO("MWAITX\0" "MWAITX and MONITORX instructions", 29, 1, 0),
6402 DBGFREGSUBFIELD_TERMINATOR()
6403};
6404
6405/** CPUID(0x8000000a,0).EDX field descriptions. */
6406static DBGFREGSUBFIELD const g_aExtLeafAEdxSubFields[] =
6407{
6408 DBGFREGSUBFIELD_RO("NP\0" "Nested Paging", 0, 1, 0),
6409 DBGFREGSUBFIELD_RO("LbrVirt\0" "Last Branch Record Virtualization", 1, 1, 0),
6410 DBGFREGSUBFIELD_RO("SVML\0" "SVM Lock", 2, 1, 0),
6411 DBGFREGSUBFIELD_RO("NRIPS\0" "NextRIP Save", 3, 1, 0),
6412 DBGFREGSUBFIELD_RO("TscRateMsr\0" "MSR based TSC rate control", 4, 1, 0),
6413 DBGFREGSUBFIELD_RO("VmcbClean\0" "VMCB clean bits", 5, 1, 0),
6414 DBGFREGSUBFIELD_RO("FlushByASID\0" "Flush by ASID", 6, 1, 0),
6415 DBGFREGSUBFIELD_RO("DecodeAssists\0" "Decode Assists", 7, 1, 0),
6416 DBGFREGSUBFIELD_RO("PauseFilter\0" "Pause intercept filter", 10, 1, 0),
6417 DBGFREGSUBFIELD_RO("PauseFilterThreshold\0" "Pause filter threshold", 12, 1, 0),
6418 DBGFREGSUBFIELD_RO("AVIC\0" "Advanced Virtual Interrupt Controller", 13, 1, 0),
6419 DBGFREGSUBFIELD_RO("VMSAVEVirt\0" "VMSAVE and VMLOAD Virtualization", 15, 1, 0),
6420 DBGFREGSUBFIELD_RO("VGIF\0" "Virtual Global-Interrupt Flag", 16, 1, 0),
6421 DBGFREGSUBFIELD_RO("GMET\0" "Guest Mode Execute Trap Extension", 17, 1, 0),
6422 DBGFREGSUBFIELD_TERMINATOR()
6423};
6424
6425
6426/** CPUID(0x80000007,0).EDX field descriptions. */
6427static DBGFREGSUBFIELD const g_aExtLeaf7EdxSubFields[] =
6428{
6429 DBGFREGSUBFIELD_RO("TS\0" "Temperature Sensor", 0, 1, 0),
6430 DBGFREGSUBFIELD_RO("FID\0" "Frequency ID control", 1, 1, 0),
6431 DBGFREGSUBFIELD_RO("VID\0" "Voltage ID control", 2, 1, 0),
6432 DBGFREGSUBFIELD_RO("VID\0" "Voltage ID control", 2, 1, 0),
6433 DBGFREGSUBFIELD_RO("TTP\0" "Thermal Trip", 3, 1, 0),
6434 DBGFREGSUBFIELD_RO("TM\0" "Hardware Thermal Control (HTC)", 4, 1, 0),
6435 DBGFREGSUBFIELD_RO("100MHzSteps\0" "100 MHz Multiplier control", 6, 1, 0),
6436 DBGFREGSUBFIELD_RO("HwPstate\0" "Hardware P-state control", 7, 1, 0),
6437 DBGFREGSUBFIELD_RO("TscInvariant\0" "Invariant Time Stamp Counter", 8, 1, 0),
6438 DBGFREGSUBFIELD_RO("CBP\0" "Core Performance Boost", 9, 1, 0),
6439 DBGFREGSUBFIELD_RO("EffFreqRO\0" "Read-only Effective Frequency Interface", 10, 1, 0),
6440 DBGFREGSUBFIELD_RO("ProcFdbkIf\0" "Processor Feedback Interface", 11, 1, 0),
6441 DBGFREGSUBFIELD_RO("ProcPwrRep\0" "Core power reporting interface support", 12, 1, 0),
6442 DBGFREGSUBFIELD_TERMINATOR()
6443};
6444
6445/** CPUID(0x80000008,0).EBX field descriptions. */
6446static DBGFREGSUBFIELD const g_aExtLeaf8EbxSubFields[] =
6447{
6448 DBGFREGSUBFIELD_RO("CLZERO\0" "Clear zero instruction (cacheline)", 0, 1, 0),
6449 DBGFREGSUBFIELD_RO("IRPerf\0" "Instructions retired count support", 1, 1, 0),
6450 DBGFREGSUBFIELD_RO("XSaveErPtr\0" "Save/restore error pointers (FXSAVE/RSTOR*)", 2, 1, 0),
6451 DBGFREGSUBFIELD_RO("RDPRU\0" "RDPRU instruction", 4, 1, 0),
6452 DBGFREGSUBFIELD_RO("MCOMMIT\0" "MCOMMIT instruction", 8, 1, 0),
6453 DBGFREGSUBFIELD_RO("IBPB\0" "Supports the IBPB command in IA32_PRED_CMD", 12, 1, 0),
6454 DBGFREGSUBFIELD_TERMINATOR()
6455};
6456
6457
6458static void cpumR3CpuIdInfoMnemonicListU32(PCDBGFINFOHLP pHlp, uint32_t uVal, PCDBGFREGSUBFIELD pDesc,
6459 const char *pszLeadIn, uint32_t cchWidth)
6460{
6461 if (pszLeadIn)
6462 pHlp->pfnPrintf(pHlp, "%*s", cchWidth, pszLeadIn);
6463
6464 for (uint32_t iBit = 0; iBit < 32; iBit++)
6465 if (RT_BIT_32(iBit) & uVal)
6466 {
6467 while ( pDesc->pszName != NULL
6468 && iBit >= (uint32_t)pDesc->iFirstBit + pDesc->cBits)
6469 pDesc++;
6470 if ( pDesc->pszName != NULL
6471 && iBit - (uint32_t)pDesc->iFirstBit < (uint32_t)pDesc->cBits)
6472 {
6473 if (pDesc->cBits == 1)
6474 pHlp->pfnPrintf(pHlp, " %s", pDesc->pszName);
6475 else
6476 {
6477 uint32_t uFieldValue = uVal >> pDesc->iFirstBit;
6478 if (pDesc->cBits < 32)
6479 uFieldValue &= RT_BIT_32(pDesc->cBits) - UINT32_C(1);
6480 pHlp->pfnPrintf(pHlp, pDesc->cBits < 4 ? " %s=%u" : " %s=%#x", pDesc->pszName, uFieldValue);
6481 iBit = pDesc->iFirstBit + pDesc->cBits - 1;
6482 }
6483 }
6484 else
6485 pHlp->pfnPrintf(pHlp, " %u", iBit);
6486 }
6487 if (pszLeadIn)
6488 pHlp->pfnPrintf(pHlp, "\n");
6489}
6490
6491
6492static void cpumR3CpuIdInfoMnemonicListU64(PCDBGFINFOHLP pHlp, uint64_t uVal, PCDBGFREGSUBFIELD pDesc,
6493 const char *pszLeadIn, uint32_t cchWidth)
6494{
6495 if (pszLeadIn)
6496 pHlp->pfnPrintf(pHlp, "%*s", cchWidth, pszLeadIn);
6497
6498 for (uint32_t iBit = 0; iBit < 64; iBit++)
6499 if (RT_BIT_64(iBit) & uVal)
6500 {
6501 while ( pDesc->pszName != NULL
6502 && iBit >= (uint32_t)pDesc->iFirstBit + pDesc->cBits)
6503 pDesc++;
6504 if ( pDesc->pszName != NULL
6505 && iBit - (uint32_t)pDesc->iFirstBit < (uint32_t)pDesc->cBits)
6506 {
6507 if (pDesc->cBits == 1)
6508 pHlp->pfnPrintf(pHlp, " %s", pDesc->pszName);
6509 else
6510 {
6511 uint64_t uFieldValue = uVal >> pDesc->iFirstBit;
6512 if (pDesc->cBits < 64)
6513 uFieldValue &= RT_BIT_64(pDesc->cBits) - UINT64_C(1);
6514 pHlp->pfnPrintf(pHlp, pDesc->cBits < 4 ? " %s=%llu" : " %s=%#llx", pDesc->pszName, uFieldValue);
6515 iBit = pDesc->iFirstBit + pDesc->cBits - 1;
6516 }
6517 }
6518 else
6519 pHlp->pfnPrintf(pHlp, " %u", iBit);
6520 }
6521 if (pszLeadIn)
6522 pHlp->pfnPrintf(pHlp, "\n");
6523}
6524
6525
6526static void cpumR3CpuIdInfoValueWithMnemonicListU64(PCDBGFINFOHLP pHlp, uint64_t uVal, PCDBGFREGSUBFIELD pDesc,
6527 const char *pszLeadIn, uint32_t cchWidth)
6528{
6529 if (!uVal)
6530 pHlp->pfnPrintf(pHlp, "%*s %#010x`%08x\n", cchWidth, pszLeadIn, RT_HI_U32(uVal), RT_LO_U32(uVal));
6531 else
6532 {
6533 pHlp->pfnPrintf(pHlp, "%*s %#010x`%08x (", cchWidth, pszLeadIn, RT_HI_U32(uVal), RT_LO_U32(uVal));
6534 cpumR3CpuIdInfoMnemonicListU64(pHlp, uVal, pDesc, NULL, 0);
6535 pHlp->pfnPrintf(pHlp, " )\n");
6536 }
6537}
6538
6539
6540static void cpumR3CpuIdInfoVerboseCompareListU32(PCDBGFINFOHLP pHlp, uint32_t uVal1, uint32_t uVal2, PCDBGFREGSUBFIELD pDesc,
6541 uint32_t cchWidth)
6542{
6543 uint32_t uCombined = uVal1 | uVal2;
6544 for (uint32_t iBit = 0; iBit < 32; iBit++)
6545 if ( (RT_BIT_32(iBit) & uCombined)
6546 || (iBit == pDesc->iFirstBit && pDesc->pszName) )
6547 {
6548 while ( pDesc->pszName != NULL
6549 && iBit >= (uint32_t)pDesc->iFirstBit + pDesc->cBits)
6550 pDesc++;
6551
6552 if ( pDesc->pszName != NULL
6553 && iBit - (uint32_t)pDesc->iFirstBit < (uint32_t)pDesc->cBits)
6554 {
6555 size_t cchMnemonic = strlen(pDesc->pszName);
6556 const char *pszDesc = pDesc->pszName + cchMnemonic + 1;
6557 size_t cchDesc = strlen(pszDesc);
6558 uint32_t uFieldValue1 = uVal1 >> pDesc->iFirstBit;
6559 uint32_t uFieldValue2 = uVal2 >> pDesc->iFirstBit;
6560 if (pDesc->cBits < 32)
6561 {
6562 uFieldValue1 &= RT_BIT_32(pDesc->cBits) - UINT32_C(1);
6563 uFieldValue2 &= RT_BIT_32(pDesc->cBits) - UINT32_C(1);
6564 }
6565
6566 pHlp->pfnPrintf(pHlp, pDesc->cBits < 4 ? " %s - %s%*s= %u (%u)\n" : " %s - %s%*s= %#x (%#x)\n",
6567 pDesc->pszName, pszDesc,
6568 cchMnemonic + 3 + cchDesc < cchWidth ? cchWidth - (cchMnemonic + 3 + cchDesc) : 1, "",
6569 uFieldValue1, uFieldValue2);
6570
6571 iBit = pDesc->iFirstBit + pDesc->cBits - 1U;
6572 pDesc++;
6573 }
6574 else
6575 pHlp->pfnPrintf(pHlp, " %2u - Reserved%*s= %u (%u)\n", iBit, 13 < cchWidth ? cchWidth - 13 : 1, "",
6576 RT_BOOL(uVal1 & RT_BIT_32(iBit)), RT_BOOL(uVal2 & RT_BIT_32(iBit)));
6577 }
6578}
6579
6580
6581/**
6582 * Produces a detailed summary of standard leaf 0x00000001.
6583 *
6584 * @param pHlp The info helper functions.
6585 * @param pCurLeaf The 0x00000001 leaf.
6586 * @param fVerbose Whether to be very verbose or not.
6587 * @param fIntel Set if intel CPU.
6588 */
6589static void cpumR3CpuIdInfoStdLeaf1Details(PCDBGFINFOHLP pHlp, PCCPUMCPUIDLEAF pCurLeaf, bool fVerbose, bool fIntel)
6590{
6591 Assert(pCurLeaf); Assert(pCurLeaf->uLeaf == 1);
6592 static const char * const s_apszTypes[4] = { "primary", "overdrive", "MP", "reserved" };
6593 uint32_t uEAX = pCurLeaf->uEax;
6594 uint32_t uEBX = pCurLeaf->uEbx;
6595
6596 pHlp->pfnPrintf(pHlp,
6597 "%36s %2d \tExtended: %d \tEffective: %d\n"
6598 "%36s %2d \tExtended: %d \tEffective: %d\n"
6599 "%36s %d\n"
6600 "%36s %d (%s)\n"
6601 "%36s %#04x\n"
6602 "%36s %d\n"
6603 "%36s %d\n"
6604 "%36s %#04x\n"
6605 ,
6606 "Family:", (uEAX >> 8) & 0xf, (uEAX >> 20) & 0x7f, ASMGetCpuFamily(uEAX),
6607 "Model:", (uEAX >> 4) & 0xf, (uEAX >> 16) & 0x0f, ASMGetCpuModel(uEAX, fIntel),
6608 "Stepping:", ASMGetCpuStepping(uEAX),
6609 "Type:", (uEAX >> 12) & 3, s_apszTypes[(uEAX >> 12) & 3],
6610 "APIC ID:", (uEBX >> 24) & 0xff,
6611 "Logical CPUs:",(uEBX >> 16) & 0xff,
6612 "CLFLUSH Size:",(uEBX >> 8) & 0xff,
6613 "Brand ID:", (uEBX >> 0) & 0xff);
6614 if (fVerbose)
6615 {
6616 CPUMCPUID Host;
6617 ASMCpuIdExSlow(1, 0, 0, 0, &Host.uEax, &Host.uEbx, &Host.uEcx, &Host.uEdx);
6618 pHlp->pfnPrintf(pHlp, "Features\n");
6619 pHlp->pfnPrintf(pHlp, " Mnemonic - Description = guest (host)\n");
6620 cpumR3CpuIdInfoVerboseCompareListU32(pHlp, pCurLeaf->uEdx, Host.uEdx, g_aLeaf1EdxSubFields, 56);
6621 cpumR3CpuIdInfoVerboseCompareListU32(pHlp, pCurLeaf->uEcx, Host.uEcx, g_aLeaf1EcxSubFields, 56);
6622 }
6623 else
6624 {
6625 cpumR3CpuIdInfoMnemonicListU32(pHlp, pCurLeaf->uEdx, g_aLeaf1EdxSubFields, "Features EDX:", 36);
6626 cpumR3CpuIdInfoMnemonicListU32(pHlp, pCurLeaf->uEcx, g_aLeaf1EcxSubFields, "Features ECX:", 36);
6627 }
6628}
6629
6630
6631/**
6632 * Produces a detailed summary of standard leaf 0x00000007.
6633 *
6634 * @param pHlp The info helper functions.
6635 * @param paLeaves The CPUID leaves array.
6636 * @param cLeaves The number of leaves in the array.
6637 * @param pCurLeaf The first 0x00000007 leaf.
6638 * @param fVerbose Whether to be very verbose or not.
6639 */
6640static void cpumR3CpuIdInfoStdLeaf7Details(PCDBGFINFOHLP pHlp, PCCPUMCPUIDLEAF paLeaves, uint32_t cLeaves,
6641 PCCPUMCPUIDLEAF pCurLeaf, bool fVerbose)
6642{
6643 Assert(pCurLeaf); Assert(pCurLeaf->uLeaf == 7);
6644 pHlp->pfnPrintf(pHlp, "Structured Extended Feature Flags Enumeration (leaf 7):\n");
6645 for (;;)
6646 {
6647 CPUMCPUID Host;
6648 ASMCpuIdExSlow(pCurLeaf->uLeaf, 0, pCurLeaf->uSubLeaf, 0, &Host.uEax, &Host.uEbx, &Host.uEcx, &Host.uEdx);
6649
6650 switch (pCurLeaf->uSubLeaf)
6651 {
6652 case 0:
6653 if (fVerbose)
6654 {
6655 pHlp->pfnPrintf(pHlp, " Mnemonic - Description = guest (host)\n");
6656 cpumR3CpuIdInfoVerboseCompareListU32(pHlp, pCurLeaf->uEbx, Host.uEbx, g_aLeaf7Sub0EbxSubFields, 56);
6657 cpumR3CpuIdInfoVerboseCompareListU32(pHlp, pCurLeaf->uEcx, Host.uEcx, g_aLeaf7Sub0EcxSubFields, 56);
6658 if (pCurLeaf->uEdx || Host.uEdx)
6659 cpumR3CpuIdInfoVerboseCompareListU32(pHlp, pCurLeaf->uEdx, Host.uEdx, g_aLeaf7Sub0EdxSubFields, 56);
6660 }
6661 else
6662 {
6663 cpumR3CpuIdInfoMnemonicListU32(pHlp, pCurLeaf->uEbx, g_aLeaf7Sub0EbxSubFields, "Ext Features EBX:", 36);
6664 cpumR3CpuIdInfoMnemonicListU32(pHlp, pCurLeaf->uEcx, g_aLeaf7Sub0EcxSubFields, "Ext Features ECX:", 36);
6665 if (pCurLeaf->uEdx)
6666 cpumR3CpuIdInfoMnemonicListU32(pHlp, pCurLeaf->uEdx, g_aLeaf7Sub0EdxSubFields, "Ext Features EDX:", 36);
6667 }
6668 break;
6669
6670 default:
6671 if (pCurLeaf->uEdx || pCurLeaf->uEcx || pCurLeaf->uEbx)
6672 pHlp->pfnPrintf(pHlp, "Unknown extended feature sub-leaf #%u: EAX=%#x EBX=%#x ECX=%#x EDX=%#x\n",
6673 pCurLeaf->uSubLeaf, pCurLeaf->uEax, pCurLeaf->uEbx, pCurLeaf->uEcx, pCurLeaf->uEdx);
6674 break;
6675
6676 }
6677
6678 /* advance. */
6679 pCurLeaf++;
6680 if ( (uintptr_t)(pCurLeaf - paLeaves) >= cLeaves
6681 || pCurLeaf->uLeaf != 0x7)
6682 break;
6683 }
6684}
6685
6686
6687/**
6688 * Produces a detailed summary of standard leaf 0x0000000d.
6689 *
6690 * @param pHlp The info helper functions.
6691 * @param paLeaves The CPUID leaves array.
6692 * @param cLeaves The number of leaves in the array.
6693 * @param pCurLeaf The first 0x00000007 leaf.
6694 * @param fVerbose Whether to be very verbose or not.
6695 */
6696static void cpumR3CpuIdInfoStdLeaf13Details(PCDBGFINFOHLP pHlp, PCCPUMCPUIDLEAF paLeaves, uint32_t cLeaves,
6697 PCCPUMCPUIDLEAF pCurLeaf, bool fVerbose)
6698{
6699 RT_NOREF_PV(fVerbose);
6700 Assert(pCurLeaf); Assert(pCurLeaf->uLeaf == 13);
6701 pHlp->pfnPrintf(pHlp, "Processor Extended State Enumeration (leaf 0xd):\n");
6702 for (uint32_t uSubLeaf = 0; uSubLeaf < 64; uSubLeaf++)
6703 {
6704 CPUMCPUID Host;
6705 ASMCpuIdExSlow(UINT32_C(0x0000000d), 0, uSubLeaf, 0, &Host.uEax, &Host.uEbx, &Host.uEcx, &Host.uEdx);
6706
6707 switch (uSubLeaf)
6708 {
6709 case 0:
6710 if (pCurLeaf && pCurLeaf->uSubLeaf == uSubLeaf)
6711 pHlp->pfnPrintf(pHlp, "%42s %#x/%#x\n", "XSAVE area cur/max size by XCR0, guest:",
6712 pCurLeaf->uEbx, pCurLeaf->uEcx);
6713 pHlp->pfnPrintf(pHlp, "%42s %#x/%#x\n", "XSAVE area cur/max size by XCR0, host:", Host.uEbx, Host.uEcx);
6714
6715 if (pCurLeaf && pCurLeaf->uSubLeaf == uSubLeaf)
6716 cpumR3CpuIdInfoValueWithMnemonicListU64(pHlp, RT_MAKE_U64(pCurLeaf->uEax, pCurLeaf->uEdx), g_aXSaveStateBits,
6717 "Valid XCR0 bits, guest:", 42);
6718 cpumR3CpuIdInfoValueWithMnemonicListU64(pHlp, RT_MAKE_U64(Host.uEax, Host.uEdx), g_aXSaveStateBits,
6719 "Valid XCR0 bits, host:", 42);
6720 break;
6721
6722 case 1:
6723 if (pCurLeaf && pCurLeaf->uSubLeaf == uSubLeaf)
6724 cpumR3CpuIdInfoMnemonicListU32(pHlp, pCurLeaf->uEax, g_aLeaf13Sub1EaxSubFields, "XSAVE features, guest:", 42);
6725 cpumR3CpuIdInfoMnemonicListU32(pHlp, Host.uEax, g_aLeaf13Sub1EaxSubFields, "XSAVE features, host:", 42);
6726
6727 if (pCurLeaf && pCurLeaf->uSubLeaf == uSubLeaf)
6728 pHlp->pfnPrintf(pHlp, "%42s %#x\n", "XSAVE area cur size XCR0|XSS, guest:", pCurLeaf->uEbx);
6729 pHlp->pfnPrintf(pHlp, "%42s %#x\n", "XSAVE area cur size XCR0|XSS, host:", Host.uEbx);
6730
6731 if (pCurLeaf && pCurLeaf->uSubLeaf == uSubLeaf)
6732 cpumR3CpuIdInfoValueWithMnemonicListU64(pHlp, RT_MAKE_U64(pCurLeaf->uEcx, pCurLeaf->uEdx), g_aXSaveStateBits,
6733 " Valid IA32_XSS bits, guest:", 42);
6734 cpumR3CpuIdInfoValueWithMnemonicListU64(pHlp, RT_MAKE_U64(Host.uEdx, Host.uEcx), g_aXSaveStateBits,
6735 " Valid IA32_XSS bits, host:", 42);
6736 break;
6737
6738 default:
6739 if ( pCurLeaf
6740 && pCurLeaf->uSubLeaf == uSubLeaf
6741 && (pCurLeaf->uEax || pCurLeaf->uEbx || pCurLeaf->uEcx || pCurLeaf->uEdx) )
6742 {
6743 pHlp->pfnPrintf(pHlp, " State #%u, guest: off=%#06x, cb=%#06x %s", uSubLeaf, pCurLeaf->uEbx,
6744 pCurLeaf->uEax, pCurLeaf->uEcx & RT_BIT_32(0) ? "XCR0-bit" : "IA32_XSS-bit");
6745 if (pCurLeaf->uEcx & ~RT_BIT_32(0))
6746 pHlp->pfnPrintf(pHlp, " ECX[reserved]=%#x\n", pCurLeaf->uEcx & ~RT_BIT_32(0));
6747 if (pCurLeaf->uEdx)
6748 pHlp->pfnPrintf(pHlp, " EDX[reserved]=%#x\n", pCurLeaf->uEdx);
6749 pHlp->pfnPrintf(pHlp, " --");
6750 cpumR3CpuIdInfoMnemonicListU64(pHlp, RT_BIT_64(uSubLeaf), g_aXSaveStateBits, NULL, 0);
6751 pHlp->pfnPrintf(pHlp, "\n");
6752 }
6753 if (Host.uEax || Host.uEbx || Host.uEcx || Host.uEdx)
6754 {
6755 pHlp->pfnPrintf(pHlp, " State #%u, host: off=%#06x, cb=%#06x %s", uSubLeaf, Host.uEbx,
6756 Host.uEax, Host.uEcx & RT_BIT_32(0) ? "XCR0-bit" : "IA32_XSS-bit");
6757 if (Host.uEcx & ~RT_BIT_32(0))
6758 pHlp->pfnPrintf(pHlp, " ECX[reserved]=%#x\n", Host.uEcx & ~RT_BIT_32(0));
6759 if (Host.uEdx)
6760 pHlp->pfnPrintf(pHlp, " EDX[reserved]=%#x\n", Host.uEdx);
6761 pHlp->pfnPrintf(pHlp, " --");
6762 cpumR3CpuIdInfoMnemonicListU64(pHlp, RT_BIT_64(uSubLeaf), g_aXSaveStateBits, NULL, 0);
6763 pHlp->pfnPrintf(pHlp, "\n");
6764 }
6765 break;
6766
6767 }
6768
6769 /* advance. */
6770 if (pCurLeaf)
6771 {
6772 while ( (uintptr_t)(pCurLeaf - paLeaves) < cLeaves
6773 && pCurLeaf->uSubLeaf <= uSubLeaf
6774 && pCurLeaf->uLeaf == UINT32_C(0x0000000d))
6775 pCurLeaf++;
6776 if ( (uintptr_t)(pCurLeaf - paLeaves) >= cLeaves
6777 || pCurLeaf->uLeaf != UINT32_C(0x0000000d))
6778 pCurLeaf = NULL;
6779 }
6780 }
6781}
6782
6783
6784static PCCPUMCPUIDLEAF cpumR3CpuIdInfoRawRange(PCDBGFINFOHLP pHlp, PCCPUMCPUIDLEAF paLeaves, uint32_t cLeaves,
6785 PCCPUMCPUIDLEAF pCurLeaf, uint32_t uUpToLeaf, const char *pszTitle)
6786{
6787 if ( (uintptr_t)(pCurLeaf - paLeaves) < cLeaves
6788 && pCurLeaf->uLeaf <= uUpToLeaf)
6789 {
6790 pHlp->pfnPrintf(pHlp,
6791 " %s\n"
6792 " Leaf/sub-leaf eax ebx ecx edx\n", pszTitle);
6793 while ( (uintptr_t)(pCurLeaf - paLeaves) < cLeaves
6794 && pCurLeaf->uLeaf <= uUpToLeaf)
6795 {
6796 CPUMCPUID Host;
6797 ASMCpuIdExSlow(pCurLeaf->uLeaf, 0, pCurLeaf->uSubLeaf, 0, &Host.uEax, &Host.uEbx, &Host.uEcx, &Host.uEdx);
6798 pHlp->pfnPrintf(pHlp,
6799 "Gst: %08x/%04x %08x %08x %08x %08x\n"
6800 "Hst: %08x %08x %08x %08x\n",
6801 pCurLeaf->uLeaf, pCurLeaf->uSubLeaf, pCurLeaf->uEax, pCurLeaf->uEbx, pCurLeaf->uEcx, pCurLeaf->uEdx,
6802 Host.uEax, Host.uEbx, Host.uEcx, Host.uEdx);
6803 pCurLeaf++;
6804 }
6805 }
6806
6807 return pCurLeaf;
6808}
6809
6810
6811/**
6812 * Display the guest CpuId leaves.
6813 *
6814 * @param pVM The cross context VM structure.
6815 * @param pHlp The info helper functions.
6816 * @param pszArgs "terse", "default" or "verbose".
6817 */
6818DECLCALLBACK(void) cpumR3CpuIdInfo(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs)
6819{
6820 /*
6821 * Parse the argument.
6822 */
6823 unsigned iVerbosity = 1;
6824 if (pszArgs)
6825 {
6826 pszArgs = RTStrStripL(pszArgs);
6827 if (!strcmp(pszArgs, "terse"))
6828 iVerbosity--;
6829 else if (!strcmp(pszArgs, "verbose"))
6830 iVerbosity++;
6831 }
6832
6833 uint32_t uLeaf;
6834 CPUMCPUID Host;
6835 uint32_t cLeaves = pVM->cpum.s.GuestInfo.cCpuIdLeaves;
6836 PCPUMCPUIDLEAF paLeaves = pVM->cpum.s.GuestInfo.paCpuIdLeavesR3;
6837 PCCPUMCPUIDLEAF pCurLeaf;
6838 PCCPUMCPUIDLEAF pNextLeaf;
6839 bool const fIntel = ASMIsIntelCpuEx(pVM->cpum.s.aGuestCpuIdPatmStd[0].uEbx,
6840 pVM->cpum.s.aGuestCpuIdPatmStd[0].uEcx,
6841 pVM->cpum.s.aGuestCpuIdPatmStd[0].uEdx);
6842
6843 /*
6844 * Standard leaves. Custom raw dump here due to ECX sub-leaves host handling.
6845 */
6846 uint32_t cHstMax = ASMCpuId_EAX(0);
6847 uint32_t cGstMax = paLeaves[0].uLeaf == 0 ? paLeaves[0].uEax : 0;
6848 uint32_t cMax = RT_MAX(cGstMax, cHstMax);
6849 pHlp->pfnPrintf(pHlp,
6850 " Raw Standard CPUID Leaves\n"
6851 " Leaf/sub-leaf eax ebx ecx edx\n");
6852 for (uLeaf = 0, pCurLeaf = paLeaves; uLeaf <= cMax; uLeaf++)
6853 {
6854 uint32_t cMaxSubLeaves = 1;
6855 if (uLeaf == 4 || uLeaf == 7 || uLeaf == 0xb)
6856 cMaxSubLeaves = 16;
6857 else if (uLeaf == 0xd)
6858 cMaxSubLeaves = 128;
6859
6860 for (uint32_t uSubLeaf = 0; uSubLeaf < cMaxSubLeaves; uSubLeaf++)
6861 {
6862 ASMCpuIdExSlow(uLeaf, 0, uSubLeaf, 0, &Host.uEax, &Host.uEbx, &Host.uEcx, &Host.uEdx);
6863 if ( (uintptr_t)(pCurLeaf - paLeaves) < cLeaves
6864 && pCurLeaf->uLeaf == uLeaf
6865 && pCurLeaf->uSubLeaf == uSubLeaf)
6866 {
6867 pHlp->pfnPrintf(pHlp,
6868 "Gst: %08x/%04x %08x %08x %08x %08x\n"
6869 "Hst: %08x %08x %08x %08x\n",
6870 uLeaf, uSubLeaf, pCurLeaf->uEax, pCurLeaf->uEbx, pCurLeaf->uEcx, pCurLeaf->uEdx,
6871 Host.uEax, Host.uEbx, Host.uEcx, Host.uEdx);
6872 pCurLeaf++;
6873 }
6874 else if ( uLeaf != 0xd
6875 || uSubLeaf <= 1
6876 || Host.uEbx != 0 )
6877 pHlp->pfnPrintf(pHlp,
6878 "Hst: %08x/%04x %08x %08x %08x %08x\n",
6879 uLeaf, uSubLeaf, Host.uEax, Host.uEbx, Host.uEcx, Host.uEdx);
6880
6881 /* Done? */
6882 if ( ( (uintptr_t)(pCurLeaf - paLeaves) >= cLeaves
6883 || pCurLeaf->uLeaf != uLeaf)
6884 && ( (uLeaf == 0x4 && ((Host.uEax & 0x000f) == 0 || (Host.uEax & 0x000f) >= 8))
6885 || (uLeaf == 0x7 && Host.uEax == 0)
6886 || (uLeaf == 0xb && ((Host.uEcx & 0xff00) == 0 || (Host.uEcx & 0xff00) >= 8))
6887 || (uLeaf == 0xb && (Host.uEcx & 0xff) != uSubLeaf)
6888 || (uLeaf == 0xd && uSubLeaf >= 128)
6889 )
6890 )
6891 break;
6892 }
6893 }
6894 pNextLeaf = pCurLeaf;
6895
6896 /*
6897 * If verbose, decode it.
6898 */
6899 if (iVerbosity && paLeaves[0].uLeaf == 0)
6900 pHlp->pfnPrintf(pHlp,
6901 "%36s %.04s%.04s%.04s\n"
6902 "%36s 0x00000000-%#010x\n"
6903 ,
6904 "Name:", &paLeaves[0].uEbx, &paLeaves[0].uEdx, &paLeaves[0].uEcx,
6905 "Supports:", paLeaves[0].uEax);
6906
6907 if (iVerbosity && (pCurLeaf = cpumR3CpuIdGetLeaf(paLeaves, cLeaves, UINT32_C(0x00000001), 0)) != NULL)
6908 cpumR3CpuIdInfoStdLeaf1Details(pHlp, pCurLeaf, iVerbosity > 1, fIntel);
6909
6910 if (iVerbosity && (pCurLeaf = cpumR3CpuIdGetLeaf(paLeaves, cLeaves, UINT32_C(0x00000007), 0)) != NULL)
6911 cpumR3CpuIdInfoStdLeaf7Details(pHlp, paLeaves, cLeaves, pCurLeaf, iVerbosity > 1);
6912
6913 if (iVerbosity && (pCurLeaf = cpumR3CpuIdGetLeaf(paLeaves, cLeaves, UINT32_C(0x0000000d), 0)) != NULL)
6914 cpumR3CpuIdInfoStdLeaf13Details(pHlp, paLeaves, cLeaves, pCurLeaf, iVerbosity > 1);
6915
6916 pCurLeaf = pNextLeaf;
6917
6918 /*
6919 * Hypervisor leaves.
6920 *
6921 * Unlike most of the other leaves reported, the guest hypervisor leaves
6922 * aren't a subset of the host CPUID bits.
6923 */
6924 pCurLeaf = cpumR3CpuIdInfoRawRange(pHlp, paLeaves, cLeaves, pCurLeaf, UINT32_C(0x3fffffff), "Unknown CPUID Leaves");
6925
6926 ASMCpuIdExSlow(UINT32_C(0x40000000), 0, 0, 0, &Host.uEax, &Host.uEbx, &Host.uEcx, &Host.uEdx);
6927 cHstMax = Host.uEax >= UINT32_C(0x40000001) && Host.uEax <= UINT32_C(0x40000fff) ? Host.uEax : 0;
6928 cGstMax = (uintptr_t)(pCurLeaf - paLeaves) < cLeaves && pCurLeaf->uLeaf == UINT32_C(0x40000000)
6929 ? RT_MIN(pCurLeaf->uEax, UINT32_C(0x40000fff)) : 0;
6930 cMax = RT_MAX(cHstMax, cGstMax);
6931 if (cMax >= UINT32_C(0x40000000))
6932 {
6933 pNextLeaf = cpumR3CpuIdInfoRawRange(pHlp, paLeaves, cLeaves, pCurLeaf, cMax, "Raw Hypervisor CPUID Leaves");
6934
6935 /** @todo dump these in more detail. */
6936
6937 pCurLeaf = pNextLeaf;
6938 }
6939
6940
6941 /*
6942 * Extended. Custom raw dump here due to ECX sub-leaves host handling.
6943 * Implemented after AMD specs.
6944 */
6945 pCurLeaf = cpumR3CpuIdInfoRawRange(pHlp, paLeaves, cLeaves, pCurLeaf, UINT32_C(0x7fffffff), "Unknown CPUID Leaves");
6946
6947 ASMCpuIdExSlow(UINT32_C(0x80000000), 0, 0, 0, &Host.uEax, &Host.uEbx, &Host.uEcx, &Host.uEdx);
6948 cHstMax = ASMIsValidExtRange(Host.uEax) ? RT_MIN(Host.uEax, UINT32_C(0x80000fff)) : 0;
6949 cGstMax = (uintptr_t)(pCurLeaf - paLeaves) < cLeaves && pCurLeaf->uLeaf == UINT32_C(0x80000000)
6950 ? RT_MIN(pCurLeaf->uEax, UINT32_C(0x80000fff)) : 0;
6951 cMax = RT_MAX(cHstMax, cGstMax);
6952 if (cMax >= UINT32_C(0x80000000))
6953 {
6954
6955 pHlp->pfnPrintf(pHlp,
6956 " Raw Extended CPUID Leaves\n"
6957 " Leaf/sub-leaf eax ebx ecx edx\n");
6958 PCCPUMCPUIDLEAF pExtLeaf = pCurLeaf;
6959 for (uLeaf = UINT32_C(0x80000000); uLeaf <= cMax; uLeaf++)
6960 {
6961 uint32_t cMaxSubLeaves = 1;
6962 if (uLeaf == UINT32_C(0x8000001d))
6963 cMaxSubLeaves = 16;
6964
6965 for (uint32_t uSubLeaf = 0; uSubLeaf < cMaxSubLeaves; uSubLeaf++)
6966 {
6967 ASMCpuIdExSlow(uLeaf, 0, uSubLeaf, 0, &Host.uEax, &Host.uEbx, &Host.uEcx, &Host.uEdx);
6968 if ( (uintptr_t)(pCurLeaf - paLeaves) < cLeaves
6969 && pCurLeaf->uLeaf == uLeaf
6970 && pCurLeaf->uSubLeaf == uSubLeaf)
6971 {
6972 pHlp->pfnPrintf(pHlp,
6973 "Gst: %08x/%04x %08x %08x %08x %08x\n"
6974 "Hst: %08x %08x %08x %08x\n",
6975 uLeaf, uSubLeaf, pCurLeaf->uEax, pCurLeaf->uEbx, pCurLeaf->uEcx, pCurLeaf->uEdx,
6976 Host.uEax, Host.uEbx, Host.uEcx, Host.uEdx);
6977 pCurLeaf++;
6978 }
6979 else if ( uLeaf != 0xd
6980 || uSubLeaf <= 1
6981 || Host.uEbx != 0 )
6982 pHlp->pfnPrintf(pHlp,
6983 "Hst: %08x/%04x %08x %08x %08x %08x\n",
6984 uLeaf, uSubLeaf, Host.uEax, Host.uEbx, Host.uEcx, Host.uEdx);
6985
6986 /* Done? */
6987 if ( ( (uintptr_t)(pCurLeaf - paLeaves) >= cLeaves
6988 || pCurLeaf->uLeaf != uLeaf)
6989 && (uLeaf == UINT32_C(0x8000001d) && ((Host.uEax & 0x000f) == 0 || (Host.uEax & 0x000f) >= 8)) )
6990 break;
6991 }
6992 }
6993 pNextLeaf = pCurLeaf;
6994
6995 /*
6996 * Understandable output
6997 */
6998 if (iVerbosity)
6999 pHlp->pfnPrintf(pHlp,
7000 "Ext Name: %.4s%.4s%.4s\n"
7001 "Ext Supports: 0x80000000-%#010x\n",
7002 &pExtLeaf->uEbx, &pExtLeaf->uEdx, &pExtLeaf->uEcx, pExtLeaf->uEax);
7003
7004 pCurLeaf = cpumR3CpuIdGetLeaf(paLeaves, cLeaves, UINT32_C(0x80000001), 0);
7005 if (iVerbosity && pCurLeaf)
7006 {
7007 uint32_t uEAX = pCurLeaf->uEax;
7008 pHlp->pfnPrintf(pHlp,
7009 "Family: %d \tExtended: %d \tEffective: %d\n"
7010 "Model: %d \tExtended: %d \tEffective: %d\n"
7011 "Stepping: %d\n"
7012 "Brand ID: %#05x\n",
7013 (uEAX >> 8) & 0xf, (uEAX >> 20) & 0x7f, ASMGetCpuFamily(uEAX),
7014 (uEAX >> 4) & 0xf, (uEAX >> 16) & 0x0f, ASMGetCpuModel(uEAX, fIntel),
7015 ASMGetCpuStepping(uEAX),
7016 pCurLeaf->uEbx & 0xfff);
7017
7018 if (iVerbosity == 1)
7019 {
7020 cpumR3CpuIdInfoMnemonicListU32(pHlp, pCurLeaf->uEdx, g_aExtLeaf1EdxSubFields, "Ext Features EDX:", 34);
7021 cpumR3CpuIdInfoMnemonicListU32(pHlp, pCurLeaf->uEcx, g_aExtLeaf1EdxSubFields, "Ext Features ECX:", 34);
7022 }
7023 else
7024 {
7025 ASMCpuIdExSlow(0x80000001, 0, 0, 0, &Host.uEax, &Host.uEbx, &Host.uEcx, &Host.uEdx);
7026 pHlp->pfnPrintf(pHlp, "Ext Features\n");
7027 pHlp->pfnPrintf(pHlp, " Mnemonic - Description = guest (host)\n");
7028 cpumR3CpuIdInfoVerboseCompareListU32(pHlp, pCurLeaf->uEdx, Host.uEdx, g_aExtLeaf1EdxSubFields, 56);
7029 cpumR3CpuIdInfoVerboseCompareListU32(pHlp, pCurLeaf->uEcx, Host.uEcx, g_aExtLeaf1EcxSubFields, 56);
7030 if (Host.uEcx & X86_CPUID_AMD_FEATURE_ECX_SVM)
7031 {
7032 pHlp->pfnPrintf(pHlp, "SVM Feature Identification (leaf A):\n");
7033 ASMCpuIdExSlow(0x8000000a, 0, 0, 0, &Host.uEax, &Host.uEbx, &Host.uEcx, &Host.uEdx);
7034 pCurLeaf = cpumR3CpuIdGetLeaf(paLeaves, cLeaves, UINT32_C(0x8000000a), 0);
7035 uint32_t const uGstEdx = pCurLeaf ? pCurLeaf->uEdx : 0;
7036 cpumR3CpuIdInfoVerboseCompareListU32(pHlp, uGstEdx, Host.uEdx, g_aExtLeafAEdxSubFields, 56);
7037 }
7038 }
7039 }
7040
7041 if (iVerbosity && (pCurLeaf = cpumR3CpuIdGetLeaf(paLeaves, cLeaves, UINT32_C(0x80000002), 0)) != NULL)
7042 {
7043 char szString[4*4*3+1] = {0};
7044 uint32_t *pu32 = (uint32_t *)szString;
7045 *pu32++ = pCurLeaf->uEax;
7046 *pu32++ = pCurLeaf->uEbx;
7047 *pu32++ = pCurLeaf->uEcx;
7048 *pu32++ = pCurLeaf->uEdx;
7049 pCurLeaf = cpumR3CpuIdGetLeaf(paLeaves, cLeaves, UINT32_C(0x80000003), 0);
7050 if (pCurLeaf)
7051 {
7052 *pu32++ = pCurLeaf->uEax;
7053 *pu32++ = pCurLeaf->uEbx;
7054 *pu32++ = pCurLeaf->uEcx;
7055 *pu32++ = pCurLeaf->uEdx;
7056 }
7057 pCurLeaf = cpumR3CpuIdGetLeaf(paLeaves, cLeaves, UINT32_C(0x80000004), 0);
7058 if (pCurLeaf)
7059 {
7060 *pu32++ = pCurLeaf->uEax;
7061 *pu32++ = pCurLeaf->uEbx;
7062 *pu32++ = pCurLeaf->uEcx;
7063 *pu32++ = pCurLeaf->uEdx;
7064 }
7065 pHlp->pfnPrintf(pHlp, "Full Name: \"%s\"\n", szString);
7066 }
7067
7068 if (iVerbosity && (pCurLeaf = cpumR3CpuIdGetLeaf(paLeaves, cLeaves, UINT32_C(0x80000005), 0)) != NULL)
7069 {
7070 uint32_t uEAX = pCurLeaf->uEax;
7071 uint32_t uEBX = pCurLeaf->uEbx;
7072 uint32_t uECX = pCurLeaf->uEcx;
7073 uint32_t uEDX = pCurLeaf->uEdx;
7074 char sz1[32];
7075 char sz2[32];
7076
7077 pHlp->pfnPrintf(pHlp,
7078 "TLB 2/4M Instr/Uni: %s %3d entries\n"
7079 "TLB 2/4M Data: %s %3d entries\n",
7080 getCacheAss((uEAX >> 8) & 0xff, sz1), (uEAX >> 0) & 0xff,
7081 getCacheAss((uEAX >> 24) & 0xff, sz2), (uEAX >> 16) & 0xff);
7082 pHlp->pfnPrintf(pHlp,
7083 "TLB 4K Instr/Uni: %s %3d entries\n"
7084 "TLB 4K Data: %s %3d entries\n",
7085 getCacheAss((uEBX >> 8) & 0xff, sz1), (uEBX >> 0) & 0xff,
7086 getCacheAss((uEBX >> 24) & 0xff, sz2), (uEBX >> 16) & 0xff);
7087 pHlp->pfnPrintf(pHlp, "L1 Instr Cache Line Size: %d bytes\n"
7088 "L1 Instr Cache Lines Per Tag: %d\n"
7089 "L1 Instr Cache Associativity: %s\n"
7090 "L1 Instr Cache Size: %d KB\n",
7091 (uEDX >> 0) & 0xff,
7092 (uEDX >> 8) & 0xff,
7093 getCacheAss((uEDX >> 16) & 0xff, sz1),
7094 (uEDX >> 24) & 0xff);
7095 pHlp->pfnPrintf(pHlp,
7096 "L1 Data Cache Line Size: %d bytes\n"
7097 "L1 Data Cache Lines Per Tag: %d\n"
7098 "L1 Data Cache Associativity: %s\n"
7099 "L1 Data Cache Size: %d KB\n",
7100 (uECX >> 0) & 0xff,
7101 (uECX >> 8) & 0xff,
7102 getCacheAss((uECX >> 16) & 0xff, sz1),
7103 (uECX >> 24) & 0xff);
7104 }
7105
7106 if (iVerbosity && (pCurLeaf = cpumR3CpuIdGetLeaf(paLeaves, cLeaves, UINT32_C(0x80000006), 0)) != NULL)
7107 {
7108 uint32_t uEAX = pCurLeaf->uEax;
7109 uint32_t uEBX = pCurLeaf->uEbx;
7110 uint32_t uEDX = pCurLeaf->uEdx;
7111
7112 pHlp->pfnPrintf(pHlp,
7113 "L2 TLB 2/4M Instr/Uni: %s %4d entries\n"
7114 "L2 TLB 2/4M Data: %s %4d entries\n",
7115 getL2CacheAss((uEAX >> 12) & 0xf), (uEAX >> 0) & 0xfff,
7116 getL2CacheAss((uEAX >> 28) & 0xf), (uEAX >> 16) & 0xfff);
7117 pHlp->pfnPrintf(pHlp,
7118 "L2 TLB 4K Instr/Uni: %s %4d entries\n"
7119 "L2 TLB 4K Data: %s %4d entries\n",
7120 getL2CacheAss((uEBX >> 12) & 0xf), (uEBX >> 0) & 0xfff,
7121 getL2CacheAss((uEBX >> 28) & 0xf), (uEBX >> 16) & 0xfff);
7122 pHlp->pfnPrintf(pHlp,
7123 "L2 Cache Line Size: %d bytes\n"
7124 "L2 Cache Lines Per Tag: %d\n"
7125 "L2 Cache Associativity: %s\n"
7126 "L2 Cache Size: %d KB\n",
7127 (uEDX >> 0) & 0xff,
7128 (uEDX >> 8) & 0xf,
7129 getL2CacheAss((uEDX >> 12) & 0xf),
7130 (uEDX >> 16) & 0xffff);
7131 }
7132
7133 if (iVerbosity && (pCurLeaf = cpumR3CpuIdGetLeaf(paLeaves, cLeaves, UINT32_C(0x80000007), 0)) != NULL)
7134 {
7135 ASMCpuIdExSlow(UINT32_C(0x80000007), 0, 0, 0, &Host.uEax, &Host.uEbx, &Host.uEcx, &Host.uEdx);
7136 if (pCurLeaf->uEdx || (Host.uEdx && iVerbosity))
7137 {
7138 if (iVerbosity < 1)
7139 cpumR3CpuIdInfoMnemonicListU32(pHlp, pCurLeaf->uEdx, g_aExtLeaf7EdxSubFields, "APM Features EDX:", 34);
7140 else
7141 cpumR3CpuIdInfoVerboseCompareListU32(pHlp, pCurLeaf->uEdx, Host.uEdx, g_aExtLeaf7EdxSubFields, 56);
7142 }
7143 }
7144
7145 pCurLeaf = cpumR3CpuIdGetLeaf(paLeaves, cLeaves, UINT32_C(0x80000008), 0);
7146 if (pCurLeaf != NULL)
7147 {
7148 ASMCpuIdExSlow(UINT32_C(0x80000008), 0, 0, 0, &Host.uEax, &Host.uEbx, &Host.uEcx, &Host.uEdx);
7149 if (pCurLeaf->uEbx || (Host.uEbx && iVerbosity))
7150 {
7151 if (iVerbosity < 1)
7152 cpumR3CpuIdInfoMnemonicListU32(pHlp, pCurLeaf->uEbx, g_aExtLeaf8EbxSubFields, "Ext Features ext IDs EBX:", 34);
7153 else
7154 cpumR3CpuIdInfoVerboseCompareListU32(pHlp, pCurLeaf->uEbx, Host.uEbx, g_aExtLeaf8EbxSubFields, 56);
7155 }
7156
7157 if (iVerbosity)
7158 {
7159 uint32_t uEAX = pCurLeaf->uEax;
7160 uint32_t uECX = pCurLeaf->uEcx;
7161
7162 pHlp->pfnPrintf(pHlp,
7163 "Physical Address Width: %d bits\n"
7164 "Virtual Address Width: %d bits\n"
7165 "Guest Physical Address Width: %d bits\n",
7166 (uEAX >> 0) & 0xff,
7167 (uEAX >> 8) & 0xff,
7168 (uEAX >> 16) & 0xff);
7169
7170 /** @todo 0x80000008:ECX is reserved on Intel (we'll get incorrect physical core
7171 * count here). */
7172 pHlp->pfnPrintf(pHlp,
7173 "Physical Core Count: %d\n",
7174 ((uECX >> 0) & 0xff) + 1);
7175 }
7176 }
7177
7178 pCurLeaf = pNextLeaf;
7179 }
7180
7181
7182
7183 /*
7184 * Centaur.
7185 */
7186 pCurLeaf = cpumR3CpuIdInfoRawRange(pHlp, paLeaves, cLeaves, pCurLeaf, UINT32_C(0xbfffffff), "Unknown CPUID Leaves");
7187
7188 ASMCpuIdExSlow(UINT32_C(0xc0000000), 0, 0, 0, &Host.uEax, &Host.uEbx, &Host.uEcx, &Host.uEdx);
7189 cHstMax = Host.uEax >= UINT32_C(0xc0000001) && Host.uEax <= UINT32_C(0xc0000fff)
7190 ? RT_MIN(Host.uEax, UINT32_C(0xc0000fff)) : 0;
7191 cGstMax = (uintptr_t)(pCurLeaf - paLeaves) < cLeaves && pCurLeaf->uLeaf == UINT32_C(0xc0000000)
7192 ? RT_MIN(pCurLeaf->uEax, UINT32_C(0xc0000fff)) : 0;
7193 cMax = RT_MAX(cHstMax, cGstMax);
7194 if (cMax >= UINT32_C(0xc0000000))
7195 {
7196 pNextLeaf = cpumR3CpuIdInfoRawRange(pHlp, paLeaves, cLeaves, pCurLeaf, cMax, "Raw Centaur CPUID Leaves");
7197
7198 /*
7199 * Understandable output
7200 */
7201 if (iVerbosity && (pCurLeaf = cpumR3CpuIdGetLeaf(paLeaves, cLeaves, UINT32_C(0xc0000000), 0)) != NULL)
7202 pHlp->pfnPrintf(pHlp,
7203 "Centaur Supports: 0xc0000000-%#010x\n",
7204 pCurLeaf->uEax);
7205
7206 if (iVerbosity && (pCurLeaf = cpumR3CpuIdGetLeaf(paLeaves, cLeaves, UINT32_C(0xc0000001), 0)) != NULL)
7207 {
7208 ASMCpuIdExSlow(0xc0000001, 0, 0, 0, &Host.uEax, &Host.uEbx, &Host.uEcx, &Host.uEdx);
7209 uint32_t uEdxGst = pCurLeaf->uEdx;
7210 uint32_t uEdxHst = Host.uEdx;
7211
7212 if (iVerbosity == 1)
7213 {
7214 pHlp->pfnPrintf(pHlp, "Centaur Features EDX: ");
7215 if (uEdxGst & RT_BIT(0)) pHlp->pfnPrintf(pHlp, " AIS");
7216 if (uEdxGst & RT_BIT(1)) pHlp->pfnPrintf(pHlp, " AIS-E");
7217 if (uEdxGst & RT_BIT(2)) pHlp->pfnPrintf(pHlp, " RNG");
7218 if (uEdxGst & RT_BIT(3)) pHlp->pfnPrintf(pHlp, " RNG-E");
7219 if (uEdxGst & RT_BIT(4)) pHlp->pfnPrintf(pHlp, " LH");
7220 if (uEdxGst & RT_BIT(5)) pHlp->pfnPrintf(pHlp, " FEMMS");
7221 if (uEdxGst & RT_BIT(6)) pHlp->pfnPrintf(pHlp, " ACE");
7222 if (uEdxGst & RT_BIT(7)) pHlp->pfnPrintf(pHlp, " ACE-E");
7223 /* possibly indicating MM/HE and MM/HE-E on older chips... */
7224 if (uEdxGst & RT_BIT(8)) pHlp->pfnPrintf(pHlp, " ACE2");
7225 if (uEdxGst & RT_BIT(9)) pHlp->pfnPrintf(pHlp, " ACE2-E");
7226 if (uEdxGst & RT_BIT(10)) pHlp->pfnPrintf(pHlp, " PHE");
7227 if (uEdxGst & RT_BIT(11)) pHlp->pfnPrintf(pHlp, " PHE-E");
7228 if (uEdxGst & RT_BIT(12)) pHlp->pfnPrintf(pHlp, " PMM");
7229 if (uEdxGst & RT_BIT(13)) pHlp->pfnPrintf(pHlp, " PMM-E");
7230 for (unsigned iBit = 14; iBit < 32; iBit++)
7231 if (uEdxGst & RT_BIT(iBit))
7232 pHlp->pfnPrintf(pHlp, " %d", iBit);
7233 pHlp->pfnPrintf(pHlp, "\n");
7234 }
7235 else
7236 {
7237 pHlp->pfnPrintf(pHlp, "Mnemonic - Description = guest (host)\n");
7238 pHlp->pfnPrintf(pHlp, "AIS - Alternate Instruction Set = %d (%d)\n", !!(uEdxGst & RT_BIT( 0)), !!(uEdxHst & RT_BIT( 0)));
7239 pHlp->pfnPrintf(pHlp, "AIS-E - AIS enabled = %d (%d)\n", !!(uEdxGst & RT_BIT( 1)), !!(uEdxHst & RT_BIT( 1)));
7240 pHlp->pfnPrintf(pHlp, "RNG - Random Number Generator = %d (%d)\n", !!(uEdxGst & RT_BIT( 2)), !!(uEdxHst & RT_BIT( 2)));
7241 pHlp->pfnPrintf(pHlp, "RNG-E - RNG enabled = %d (%d)\n", !!(uEdxGst & RT_BIT( 3)), !!(uEdxHst & RT_BIT( 3)));
7242 pHlp->pfnPrintf(pHlp, "LH - LongHaul MSR 0000_110Ah = %d (%d)\n", !!(uEdxGst & RT_BIT( 4)), !!(uEdxHst & RT_BIT( 4)));
7243 pHlp->pfnPrintf(pHlp, "FEMMS - FEMMS = %d (%d)\n", !!(uEdxGst & RT_BIT( 5)), !!(uEdxHst & RT_BIT( 5)));
7244 pHlp->pfnPrintf(pHlp, "ACE - Advanced Cryptography Engine = %d (%d)\n", !!(uEdxGst & RT_BIT( 6)), !!(uEdxHst & RT_BIT( 6)));
7245 pHlp->pfnPrintf(pHlp, "ACE-E - ACE enabled = %d (%d)\n", !!(uEdxGst & RT_BIT( 7)), !!(uEdxHst & RT_BIT( 7)));
7246 /* possibly indicating MM/HE and MM/HE-E on older chips... */
7247 pHlp->pfnPrintf(pHlp, "ACE2 - Advanced Cryptography Engine 2 = %d (%d)\n", !!(uEdxGst & RT_BIT( 8)), !!(uEdxHst & RT_BIT( 8)));
7248 pHlp->pfnPrintf(pHlp, "ACE2-E - ACE enabled = %d (%d)\n", !!(uEdxGst & RT_BIT( 9)), !!(uEdxHst & RT_BIT( 9)));
7249 pHlp->pfnPrintf(pHlp, "PHE - Padlock Hash Engine = %d (%d)\n", !!(uEdxGst & RT_BIT(10)), !!(uEdxHst & RT_BIT(10)));
7250 pHlp->pfnPrintf(pHlp, "PHE-E - PHE enabled = %d (%d)\n", !!(uEdxGst & RT_BIT(11)), !!(uEdxHst & RT_BIT(11)));
7251 pHlp->pfnPrintf(pHlp, "PMM - Montgomery Multiplier = %d (%d)\n", !!(uEdxGst & RT_BIT(12)), !!(uEdxHst & RT_BIT(12)));
7252 pHlp->pfnPrintf(pHlp, "PMM-E - PMM enabled = %d (%d)\n", !!(uEdxGst & RT_BIT(13)), !!(uEdxHst & RT_BIT(13)));
7253 pHlp->pfnPrintf(pHlp, "14 - Reserved = %d (%d)\n", !!(uEdxGst & RT_BIT(14)), !!(uEdxHst & RT_BIT(14)));
7254 pHlp->pfnPrintf(pHlp, "15 - Reserved = %d (%d)\n", !!(uEdxGst & RT_BIT(15)), !!(uEdxHst & RT_BIT(15)));
7255 pHlp->pfnPrintf(pHlp, "Parallax = %d (%d)\n", !!(uEdxGst & RT_BIT(16)), !!(uEdxHst & RT_BIT(16)));
7256 pHlp->pfnPrintf(pHlp, "Parallax enabled = %d (%d)\n", !!(uEdxGst & RT_BIT(17)), !!(uEdxHst & RT_BIT(17)));
7257 pHlp->pfnPrintf(pHlp, "Overstress = %d (%d)\n", !!(uEdxGst & RT_BIT(18)), !!(uEdxHst & RT_BIT(18)));
7258 pHlp->pfnPrintf(pHlp, "Overstress enabled = %d (%d)\n", !!(uEdxGst & RT_BIT(19)), !!(uEdxHst & RT_BIT(19)));
7259 pHlp->pfnPrintf(pHlp, "TM3 - Temperature Monitoring 3 = %d (%d)\n", !!(uEdxGst & RT_BIT(20)), !!(uEdxHst & RT_BIT(20)));
7260 pHlp->pfnPrintf(pHlp, "TM3-E - TM3 enabled = %d (%d)\n", !!(uEdxGst & RT_BIT(21)), !!(uEdxHst & RT_BIT(21)));
7261 pHlp->pfnPrintf(pHlp, "RNG2 - Random Number Generator 2 = %d (%d)\n", !!(uEdxGst & RT_BIT(22)), !!(uEdxHst & RT_BIT(22)));
7262 pHlp->pfnPrintf(pHlp, "RNG2-E - RNG2 enabled = %d (%d)\n", !!(uEdxGst & RT_BIT(23)), !!(uEdxHst & RT_BIT(23)));
7263 pHlp->pfnPrintf(pHlp, "24 - Reserved = %d (%d)\n", !!(uEdxGst & RT_BIT(24)), !!(uEdxHst & RT_BIT(24)));
7264 pHlp->pfnPrintf(pHlp, "PHE2 - Padlock Hash Engine 2 = %d (%d)\n", !!(uEdxGst & RT_BIT(25)), !!(uEdxHst & RT_BIT(25)));
7265 pHlp->pfnPrintf(pHlp, "PHE2-E - PHE2 enabled = %d (%d)\n", !!(uEdxGst & RT_BIT(26)), !!(uEdxHst & RT_BIT(26)));
7266 for (unsigned iBit = 27; iBit < 32; iBit++)
7267 if ((uEdxGst | uEdxHst) & RT_BIT(iBit))
7268 pHlp->pfnPrintf(pHlp, "Bit %d = %d (%d)\n", iBit, !!(uEdxGst & RT_BIT(iBit)), !!(uEdxHst & RT_BIT(iBit)));
7269 pHlp->pfnPrintf(pHlp, "\n");
7270 }
7271 }
7272
7273 pCurLeaf = pNextLeaf;
7274 }
7275
7276 /*
7277 * The remainder.
7278 */
7279 pCurLeaf = cpumR3CpuIdInfoRawRange(pHlp, paLeaves, cLeaves, pCurLeaf, UINT32_C(0xffffffff), "Unknown CPUID Leaves");
7280}
7281
7282#endif /* !IN_VBOX_CPU_REPORT */
7283
Note: See TracBrowser for help on using the repository browser.

© 2024 Oracle Support Privacy / Do Not Sell My Info Terms of Use Trademark Policy Automated Access Etiquette