CPUM-armv8.cpp@ 102557

Last change on this file since 102557 was 101549, checked in by vboxsync, 14 months ago
VMM/Armv8: Allow configuring the program counter reset value, bugref:10528
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1	/* $Id: CPUM-armv8.cpp 101549 2023-10-23 09:53:09Z vboxsync $ */
2	/** @file
3	* CPUM - CPU Monitor / Manager (ARMv8 variant).
4	*/
5
6	/*
7	* Copyright (C) 2023 Oracle and/or its affiliates.
8	*
9	* This file is part of VirtualBox base platform packages, as
10	* available from https://www.virtualbox.org.
11	*
12	* This program is free software; you can redistribute it and/or
13	* modify it under the terms of the GNU General Public License
14	* as published by the Free Software Foundation, in version 3 of the
15	* License.
16	*
17	* This program is distributed in the hope that it will be useful, but
18	* WITHOUT ANY WARRANTY; without even the implied warranty of
19	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20	* General Public License for more details.
21	*
22	* You should have received a copy of the GNU General Public License
23	* along with this program; if not, see <https://www.gnu.org/licenses>.
24	*
25	* SPDX-License-Identifier: GPL-3.0-only
26	*/
27
28	/** @page pg_cpum CPUM - CPU Monitor / Manager
29	*
30	* The CPU Monitor / Manager keeps track of all the CPU registers.
31	* This is the ARMv8 variant which is doing much less than its x86/AMD6464
32	* counterpart due to the fact that we currently only support the NEM backends
33	* for running ARM guests. It might become complex iff we decide to implement our
34	* own hypervisor.
35	*
36	* @section sec_cpum_logging_armv8 Logging Level Assignments.
37	*
38	* Following log level assignments:
39	* - @todo
40	*
41	*/
42
43
44	/*********************************************************************************************************************************
45	* Header Files *
46	*********************************************************************************************************************************/
47	#define LOG_GROUP LOG_GROUP_CPUM
48	#define CPUM_WITH_NONCONST_HOST_FEATURES
49	#include <VBox/vmm/cpum.h>
50	#include <VBox/vmm/cpumdis.h>
51	#include <VBox/vmm/pgm.h>
52	#include <VBox/vmm/mm.h>
53	#include <VBox/vmm/em.h>
54	#include <VBox/vmm/iem.h>
55	#include <VBox/vmm/dbgf.h>
56	#include <VBox/vmm/ssm.h>
57	#include "CPUMInternal-armv8.h"
58	#include <VBox/vmm/vm.h>
59
60	#include <VBox/param.h>
61	#include <VBox/dis.h>
62	#include <VBox/err.h>
63	#include <VBox/log.h>
64	#include <iprt/assert.h>
65	#include <iprt/cpuset.h>
66	#include <iprt/mem.h>
67	#include <iprt/mp.h>
68	#include <iprt/string.h>
69	#include <iprt/armv8.h>
70
71
72	/*********************************************************************************************************************************
73	* Defined Constants And Macros *
74	*********************************************************************************************************************************/
75
76	/** Internal form used by the macros. */
77	#ifdef VBOX_WITH_STATISTICS
78	# define RINT(a_uFirst, a_uLast, a_enmRdFn, a_enmWrFn, a_offCpumCpu, a_uInitOrReadValue, a_fWrIgnMask, a_fWrGpMask, a_szName) \
79	{ a_uFirst, a_uLast, a_enmRdFn, a_enmWrFn, a_offCpumCpu, 0, 0, a_uInitOrReadValue, a_fWrIgnMask, a_fWrGpMask, a_szName, \
80	{ 0 }, { 0 }, { 0 }, { 0 } }
81	#else
82	# define RINT(a_uFirst, a_uLast, a_enmRdFn, a_enmWrFn, a_offCpumCpu, a_uInitOrReadValue, a_fWrIgnMask, a_fWrGpMask, a_szName) \
83	{ a_uFirst, a_uLast, a_enmRdFn, a_enmWrFn, a_offCpumCpu, 0, 0, a_uInitOrReadValue, a_fWrIgnMask, a_fWrGpMask, a_szName }
84	#endif
85
86	/** Function handlers, extended version. */
87	#define MFX(a_uMsr, a_szName, a_enmRdFnSuff, a_enmWrFnSuff, a_uValue, a_fWrIgnMask, a_fWrGpMask) \
88	RINT(a_uMsr, a_uMsr, kCpumSysRegRdFn_##a_enmRdFnSuff, kCpumSysRegWrFn_##a_enmWrFnSuff, 0, a_uValue, a_fWrIgnMask, a_fWrGpMask, a_szName)
89	/** Function handlers, read-only. */
90	#define MFO(a_uMsr, a_szName, a_enmRdFnSuff) \
91	RINT(a_uMsr, a_uMsr, kCpumSysRegRdFn_##a_enmRdFnSuff, kCpumSysRegWrFn_ReadOnly, 0, 0, 0, UINT64_MAX, a_szName)
92	/** Read-only fixed value, ignores all writes. */
93	#define MVI(a_uMsr, a_szName, a_uValue) \
94	RINT(a_uMsr, a_uMsr, kCpumSysRegRdFn_FixedValue, kCpumSysRegWrFn_IgnoreWrite, 0, a_uValue, UINT64_MAX, 0, a_szName)
95
96
97	/*********************************************************************************************************************************
98	* Structures and Typedefs *
99	*********************************************************************************************************************************/
100
101	/**
102	* What kind of cpu info dump to perform.
103	*/
104	typedef enum CPUMDUMPTYPE
105	{
106	CPUMDUMPTYPE_TERSE,
107	CPUMDUMPTYPE_DEFAULT,
108	CPUMDUMPTYPE_VERBOSE
109	} CPUMDUMPTYPE;
110	/** Pointer to a cpu info dump type. */
111	typedef CPUMDUMPTYPE *PCPUMDUMPTYPE;
112
113
114	/*********************************************************************************************************************************
115	* Internal Functions *
116	*********************************************************************************************************************************/
117	static DECLCALLBACK(int) cpumR3LiveExec(PVM pVM, PSSMHANDLE pSSM, uint32_t uPass);
118	static DECLCALLBACK(int) cpumR3SaveExec(PVM pVM, PSSMHANDLE pSSM);
119	static DECLCALLBACK(int) cpumR3LoadPrep(PVM pVM, PSSMHANDLE pSSM);
120	static DECLCALLBACK(int) cpumR3LoadExec(PVM pVM, PSSMHANDLE pSSM, uint32_t uVersion, uint32_t uPass);
121	static DECLCALLBACK(int) cpumR3LoadDone(PVM pVM, PSSMHANDLE pSSM);
122	static DECLCALLBACK(void) cpumR3InfoAll(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs);
123	static DECLCALLBACK(void) cpumR3InfoGuest(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs);
124	static DECLCALLBACK(void) cpumR3InfoGuestInstr(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs);
125
126
127	/*********************************************************************************************************************************
128	* Global Variables *
129	*********************************************************************************************************************************/
130	#if defined(RT_ARCH_ARM64)
131	/** Host CPU features. */
132	DECL_HIDDEN_DATA(CPUHOSTFEATURES) g_CpumHostFeatures;
133	#endif
134
135	/**
136	* System register ranges.
137	*/
138	static CPUMSYSREGRANGE const g_aSysRegRanges[] =
139	{
140	MFX(ARMV8_AARCH64_SYSREG_OSLAR_EL1, "OSLAR_EL1", WriteOnly, OslarEl1, 0, UINT64_C(0xfffffffffffffffe), UINT64_C(0xfffffffffffffffe)),
141	MFO(ARMV8_AARCH64_SYSREG_OSLSR_EL1, "OSLSR_EL1", OslsrEl1),
142	MVI(ARMV8_AARCH64_SYSREG_OSDLR_EL1, "OSDLR_EL1", 0)
143	};
144
145
146	/** Saved state field descriptors for CPUMCTX. */
147	static const SSMFIELD g_aCpumCtxFields[] =
148	{
149	SSMFIELD_ENTRY( CPUMCTX, aGRegs[0].x),
150	SSMFIELD_ENTRY( CPUMCTX, aGRegs[1].x),
151	SSMFIELD_ENTRY( CPUMCTX, aGRegs[2].x),
152	SSMFIELD_ENTRY( CPUMCTX, aGRegs[3].x),
153	SSMFIELD_ENTRY( CPUMCTX, aGRegs[4].x),
154	SSMFIELD_ENTRY( CPUMCTX, aGRegs[5].x),
155	SSMFIELD_ENTRY( CPUMCTX, aGRegs[6].x),
156	SSMFIELD_ENTRY( CPUMCTX, aGRegs[7].x),
157	SSMFIELD_ENTRY( CPUMCTX, aGRegs[8].x),
158	SSMFIELD_ENTRY( CPUMCTX, aGRegs[9].x),
159	SSMFIELD_ENTRY( CPUMCTX, aGRegs[10].x),
160	SSMFIELD_ENTRY( CPUMCTX, aGRegs[11].x),
161	SSMFIELD_ENTRY( CPUMCTX, aGRegs[12].x),
162	SSMFIELD_ENTRY( CPUMCTX, aGRegs[13].x),
163	SSMFIELD_ENTRY( CPUMCTX, aGRegs[14].x),
164	SSMFIELD_ENTRY( CPUMCTX, aGRegs[15].x),
165	SSMFIELD_ENTRY( CPUMCTX, aGRegs[16].x),
166	SSMFIELD_ENTRY( CPUMCTX, aGRegs[17].x),
167	SSMFIELD_ENTRY( CPUMCTX, aGRegs[18].x),
168	SSMFIELD_ENTRY( CPUMCTX, aGRegs[19].x),
169	SSMFIELD_ENTRY( CPUMCTX, aGRegs[20].x),
170	SSMFIELD_ENTRY( CPUMCTX, aGRegs[21].x),
171	SSMFIELD_ENTRY( CPUMCTX, aGRegs[22].x),
172	SSMFIELD_ENTRY( CPUMCTX, aGRegs[23].x),
173	SSMFIELD_ENTRY( CPUMCTX, aGRegs[24].x),
174	SSMFIELD_ENTRY( CPUMCTX, aGRegs[25].x),
175	SSMFIELD_ENTRY( CPUMCTX, aGRegs[26].x),
176	SSMFIELD_ENTRY( CPUMCTX, aGRegs[27].x),
177	SSMFIELD_ENTRY( CPUMCTX, aGRegs[28].x),
178	SSMFIELD_ENTRY( CPUMCTX, aGRegs[29].x),
179	SSMFIELD_ENTRY( CPUMCTX, aGRegs[30].x),
180	SSMFIELD_ENTRY( CPUMCTX, aVRegs[0].v),
181	SSMFIELD_ENTRY( CPUMCTX, aVRegs[1].v),
182	SSMFIELD_ENTRY( CPUMCTX, aVRegs[2].v),
183	SSMFIELD_ENTRY( CPUMCTX, aVRegs[3].v),
184	SSMFIELD_ENTRY( CPUMCTX, aVRegs[4].v),
185	SSMFIELD_ENTRY( CPUMCTX, aVRegs[5].v),
186	SSMFIELD_ENTRY( CPUMCTX, aVRegs[6].v),
187	SSMFIELD_ENTRY( CPUMCTX, aVRegs[7].v),
188	SSMFIELD_ENTRY( CPUMCTX, aVRegs[8].v),
189	SSMFIELD_ENTRY( CPUMCTX, aVRegs[9].v),
190	SSMFIELD_ENTRY( CPUMCTX, aVRegs[10].v),
191	SSMFIELD_ENTRY( CPUMCTX, aVRegs[11].v),
192	SSMFIELD_ENTRY( CPUMCTX, aVRegs[12].v),
193	SSMFIELD_ENTRY( CPUMCTX, aVRegs[13].v),
194	SSMFIELD_ENTRY( CPUMCTX, aVRegs[14].v),
195	SSMFIELD_ENTRY( CPUMCTX, aVRegs[15].v),
196	SSMFIELD_ENTRY( CPUMCTX, aVRegs[16].v),
197	SSMFIELD_ENTRY( CPUMCTX, aVRegs[17].v),
198	SSMFIELD_ENTRY( CPUMCTX, aVRegs[18].v),
199	SSMFIELD_ENTRY( CPUMCTX, aVRegs[19].v),
200	SSMFIELD_ENTRY( CPUMCTX, aVRegs[20].v),
201	SSMFIELD_ENTRY( CPUMCTX, aVRegs[21].v),
202	SSMFIELD_ENTRY( CPUMCTX, aVRegs[22].v),
203	SSMFIELD_ENTRY( CPUMCTX, aVRegs[23].v),
204	SSMFIELD_ENTRY( CPUMCTX, aVRegs[24].v),
205	SSMFIELD_ENTRY( CPUMCTX, aVRegs[25].v),
206	SSMFIELD_ENTRY( CPUMCTX, aVRegs[26].v),
207	SSMFIELD_ENTRY( CPUMCTX, aVRegs[27].v),
208	SSMFIELD_ENTRY( CPUMCTX, aVRegs[28].v),
209	SSMFIELD_ENTRY( CPUMCTX, aVRegs[29].v),
210	SSMFIELD_ENTRY( CPUMCTX, aVRegs[30].v),
211	SSMFIELD_ENTRY( CPUMCTX, aVRegs[31].v),
212	SSMFIELD_ENTRY( CPUMCTX, aSpReg[0].u64),
213	SSMFIELD_ENTRY( CPUMCTX, aSpReg[1].u64),
214	SSMFIELD_ENTRY( CPUMCTX, Pc.u64),
215	SSMFIELD_ENTRY( CPUMCTX, Spsr.u64),
216	SSMFIELD_ENTRY( CPUMCTX, Elr.u64),
217	SSMFIELD_ENTRY( CPUMCTX, Sctlr.u64),
218	SSMFIELD_ENTRY( CPUMCTX, Tcr.u64),
219	SSMFIELD_ENTRY( CPUMCTX, Ttbr0.u64),
220	SSMFIELD_ENTRY( CPUMCTX, Ttbr1.u64),
221	SSMFIELD_ENTRY( CPUMCTX, VBar.u64),
222	SSMFIELD_ENTRY( CPUMCTX, aBp[0].Ctrl.u64),
223	SSMFIELD_ENTRY( CPUMCTX, aBp[0].Value.u64),
224	SSMFIELD_ENTRY( CPUMCTX, aBp[1].Ctrl.u64),
225	SSMFIELD_ENTRY( CPUMCTX, aBp[1].Value.u64),
226	SSMFIELD_ENTRY( CPUMCTX, aBp[2].Ctrl.u64),
227	SSMFIELD_ENTRY( CPUMCTX, aBp[2].Value.u64),
228	SSMFIELD_ENTRY( CPUMCTX, aBp[3].Ctrl.u64),
229	SSMFIELD_ENTRY( CPUMCTX, aBp[3].Value.u64),
230	SSMFIELD_ENTRY( CPUMCTX, aBp[4].Ctrl.u64),
231	SSMFIELD_ENTRY( CPUMCTX, aBp[4].Value.u64),
232	SSMFIELD_ENTRY( CPUMCTX, aBp[5].Ctrl.u64),
233	SSMFIELD_ENTRY( CPUMCTX, aBp[5].Value.u64),
234	SSMFIELD_ENTRY( CPUMCTX, aBp[6].Ctrl.u64),
235	SSMFIELD_ENTRY( CPUMCTX, aBp[6].Value.u64),
236	SSMFIELD_ENTRY( CPUMCTX, aBp[7].Ctrl.u64),
237	SSMFIELD_ENTRY( CPUMCTX, aBp[7].Value.u64),
238	SSMFIELD_ENTRY( CPUMCTX, aBp[8].Ctrl.u64),
239	SSMFIELD_ENTRY( CPUMCTX, aBp[8].Value.u64),
240	SSMFIELD_ENTRY( CPUMCTX, aBp[9].Ctrl.u64),
241	SSMFIELD_ENTRY( CPUMCTX, aBp[9].Value.u64),
242	SSMFIELD_ENTRY( CPUMCTX, aBp[10].Ctrl.u64),
243	SSMFIELD_ENTRY( CPUMCTX, aBp[10].Value.u64),
244	SSMFIELD_ENTRY( CPUMCTX, aBp[11].Ctrl.u64),
245	SSMFIELD_ENTRY( CPUMCTX, aBp[11].Value.u64),
246	SSMFIELD_ENTRY( CPUMCTX, aBp[12].Ctrl.u64),
247	SSMFIELD_ENTRY( CPUMCTX, aBp[12].Value.u64),
248	SSMFIELD_ENTRY( CPUMCTX, aBp[13].Ctrl.u64),
249	SSMFIELD_ENTRY( CPUMCTX, aBp[13].Value.u64),
250	SSMFIELD_ENTRY( CPUMCTX, aBp[14].Ctrl.u64),
251	SSMFIELD_ENTRY( CPUMCTX, aBp[14].Value.u64),
252	SSMFIELD_ENTRY( CPUMCTX, aBp[15].Ctrl.u64),
253	SSMFIELD_ENTRY( CPUMCTX, aBp[15].Value.u64),
254	SSMFIELD_ENTRY( CPUMCTX, aWp[0].Ctrl.u64),
255	SSMFIELD_ENTRY( CPUMCTX, aWp[0].Value.u64),
256	SSMFIELD_ENTRY( CPUMCTX, aWp[1].Ctrl.u64),
257	SSMFIELD_ENTRY( CPUMCTX, aWp[1].Value.u64),
258	SSMFIELD_ENTRY( CPUMCTX, aWp[2].Ctrl.u64),
259	SSMFIELD_ENTRY( CPUMCTX, aWp[2].Value.u64),
260	SSMFIELD_ENTRY( CPUMCTX, aWp[3].Ctrl.u64),
261	SSMFIELD_ENTRY( CPUMCTX, aWp[3].Value.u64),
262	SSMFIELD_ENTRY( CPUMCTX, aWp[4].Ctrl.u64),
263	SSMFIELD_ENTRY( CPUMCTX, aWp[4].Value.u64),
264	SSMFIELD_ENTRY( CPUMCTX, aWp[5].Ctrl.u64),
265	SSMFIELD_ENTRY( CPUMCTX, aWp[5].Value.u64),
266	SSMFIELD_ENTRY( CPUMCTX, aWp[6].Ctrl.u64),
267	SSMFIELD_ENTRY( CPUMCTX, aWp[6].Value.u64),
268	SSMFIELD_ENTRY( CPUMCTX, aWp[7].Ctrl.u64),
269	SSMFIELD_ENTRY( CPUMCTX, aWp[7].Value.u64),
270	SSMFIELD_ENTRY( CPUMCTX, aWp[8].Ctrl.u64),
271	SSMFIELD_ENTRY( CPUMCTX, aWp[8].Value.u64),
272	SSMFIELD_ENTRY( CPUMCTX, aWp[9].Ctrl.u64),
273	SSMFIELD_ENTRY( CPUMCTX, aWp[9].Value.u64),
274	SSMFIELD_ENTRY( CPUMCTX, aWp[10].Ctrl.u64),
275	SSMFIELD_ENTRY( CPUMCTX, aWp[10].Value.u64),
276	SSMFIELD_ENTRY( CPUMCTX, aWp[11].Ctrl.u64),
277	SSMFIELD_ENTRY( CPUMCTX, aWp[11].Value.u64),
278	SSMFIELD_ENTRY( CPUMCTX, aWp[12].Ctrl.u64),
279	SSMFIELD_ENTRY( CPUMCTX, aWp[12].Value.u64),
280	SSMFIELD_ENTRY( CPUMCTX, aWp[13].Ctrl.u64),
281	SSMFIELD_ENTRY( CPUMCTX, aWp[13].Value.u64),
282	SSMFIELD_ENTRY( CPUMCTX, aWp[14].Ctrl.u64),
283	SSMFIELD_ENTRY( CPUMCTX, aWp[14].Value.u64),
284	SSMFIELD_ENTRY( CPUMCTX, aWp[15].Ctrl.u64),
285	SSMFIELD_ENTRY( CPUMCTX, aWp[15].Value.u64),
286	SSMFIELD_ENTRY( CPUMCTX, Mdscr.u64),
287	SSMFIELD_ENTRY( CPUMCTX, Apda.Low.u64),
288	SSMFIELD_ENTRY( CPUMCTX, Apda.High.u64),
289	SSMFIELD_ENTRY( CPUMCTX, Apdb.Low.u64),
290	SSMFIELD_ENTRY( CPUMCTX, Apdb.High.u64),
291	SSMFIELD_ENTRY( CPUMCTX, Apga.Low.u64),
292	SSMFIELD_ENTRY( CPUMCTX, Apga.High.u64),
293	SSMFIELD_ENTRY( CPUMCTX, Apia.Low.u64),
294	SSMFIELD_ENTRY( CPUMCTX, Apia.High.u64),
295	SSMFIELD_ENTRY( CPUMCTX, Apib.Low.u64),
296	SSMFIELD_ENTRY( CPUMCTX, Apib.High.u64),
297	SSMFIELD_ENTRY( CPUMCTX, Afsr0.u64),
298	SSMFIELD_ENTRY( CPUMCTX, Afsr1.u64),
299	SSMFIELD_ENTRY( CPUMCTX, Amair.u64),
300	SSMFIELD_ENTRY( CPUMCTX, CntKCtl.u64),
301	SSMFIELD_ENTRY( CPUMCTX, ContextIdr.u64),
302	SSMFIELD_ENTRY( CPUMCTX, Cpacr.u64),
303	SSMFIELD_ENTRY( CPUMCTX, Csselr.u64),
304	SSMFIELD_ENTRY( CPUMCTX, Esr.u64),
305	SSMFIELD_ENTRY( CPUMCTX, Far.u64),
306	SSMFIELD_ENTRY( CPUMCTX, Mair.u64),
307	SSMFIELD_ENTRY( CPUMCTX, Par.u64),
308	SSMFIELD_ENTRY( CPUMCTX, TpIdrRoEl0.u64),
309	SSMFIELD_ENTRY( CPUMCTX, aTpIdr[0].u64),
310	SSMFIELD_ENTRY( CPUMCTX, aTpIdr[1].u64),
311	SSMFIELD_ENTRY( CPUMCTX, MDccInt.u64),
312	SSMFIELD_ENTRY( CPUMCTX, fpcr),
313	SSMFIELD_ENTRY( CPUMCTX, fpsr),
314	SSMFIELD_ENTRY( CPUMCTX, fPState),
315	SSMFIELD_ENTRY( CPUMCTX, fOsLck),
316	SSMFIELD_ENTRY( CPUMCTX, CntvCtlEl0),
317	SSMFIELD_ENTRY( CPUMCTX, CntvCValEl0),
318	SSMFIELD_ENTRY_TERM()
319	};
320
321
322	/**
323	* Initializes the guest system register states.
324	*
325	* @returns VBox status code.
326	* @param pVM The cross context VM structure.
327	*/
328	static int cpumR3InitSysRegs(PVM pVM)
329	{
330	for (uint32_t i = 0; i < RT_ELEMENTS(g_aSysRegRanges); i++)
331	{
332	int rc = CPUMR3SysRegRangesInsert(pVM, &g_aSysRegRanges[i]);
333	AssertLogRelRCReturn(rc, rc);
334	}
335
336	return VINF_SUCCESS;
337	}
338
339
340	/**
341	* Initializes the CPUM.
342	*
343	* @returns VBox status code.
344	* @param pVM The cross context VM structure.
345	*/
346	VMMR3DECL(int) CPUMR3Init(PVM pVM)
347	{
348	LogFlow(("CPUMR3Init\n"));
349
350	/*
351	* Assert alignment, sizes and tables.
352	*/
353	AssertCompileMemberAlignment(VM, cpum.s, 32);
354	AssertCompile(sizeof(pVM->cpum.s) <= sizeof(pVM->cpum.padding));
355	AssertCompileSizeAlignment(CPUMCTX, 64);
356	AssertCompileMemberAlignment(VM, cpum, 64);
357	AssertCompileMemberAlignment(VMCPU, cpum.s, 64);
358	#ifdef VBOX_STRICT
359	int rc2 = cpumR3SysRegStrictInitChecks();
360	AssertRCReturn(rc2, rc2);
361	#endif
362
363	pVM->cpum.s.GuestInfo.paSysRegRangesR3 = &pVM->cpum.s.GuestInfo.aSysRegRanges[0];
364
365	PCFGMNODE pCpumCfg = CFGMR3GetChild(CFGMR3GetRoot(pVM), "CPUM");
366
367	/** @cfgm{/CPUM/ResetPcValue, string}
368	* Program counter value after a reset, sets the address of the first isntruction to execute. */
369	int rc = CFGMR3QueryU64Def(pCpumCfg, "ResetPcValue", &pVM->cpum.s.u64ResetPc, 0);
370	AssertLogRelRCReturn(rc, rc);
371
372	/*
373	* Register saved state data item.
374	*/
375	rc = SSMR3RegisterInternal(pVM, "cpum", 1, CPUM_SAVED_STATE_VERSION, sizeof(CPUM),
376	NULL, cpumR3LiveExec, NULL,
377	NULL, cpumR3SaveExec, NULL,
378	cpumR3LoadPrep, cpumR3LoadExec, cpumR3LoadDone);
379	if (RT_FAILURE(rc))
380	return rc;
381
382	/*
383	* Register info handlers and registers with the debugger facility.
384	*/
385	DBGFR3InfoRegisterInternalEx(pVM, "cpum", "Displays the all the cpu states.",
386	&cpumR3InfoAll, DBGFINFO_FLAGS_ALL_EMTS);
387	DBGFR3InfoRegisterInternalEx(pVM, "cpumguest", "Displays the guest cpu state.",
388	&cpumR3InfoGuest, DBGFINFO_FLAGS_ALL_EMTS);
389	DBGFR3InfoRegisterInternalEx(pVM, "cpumguestinstr", "Displays the current guest instruction.",
390	&cpumR3InfoGuestInstr, DBGFINFO_FLAGS_ALL_EMTS);
391	DBGFR3InfoRegisterInternal( pVM, "cpuid", "Displays the guest cpuid information.",
392	&cpumR3CpuIdInfo);
393	DBGFR3InfoRegisterInternal( pVM, "cpufeat", "Displays the guest features.",
394	&cpumR3CpuFeatInfo);
395
396	rc = cpumR3DbgInit(pVM);
397	if (RT_FAILURE(rc))
398	return rc;
399
400	/*
401	* Initialize the Guest system register states.
402	*/
403	rc = cpumR3InitSysRegs(pVM);
404	if (RT_FAILURE(rc))
405	return rc;
406
407	/*
408	* Initialize the general guest CPU state.
409	*/
410	CPUMR3Reset(pVM);
411
412	return VINF_SUCCESS;
413	}
414
415
416	/**
417	* Applies relocations to data and code managed by this
418	* component. This function will be called at init and
419	* whenever the VMM need to relocate it self inside the GC.
420	*
421	* The CPUM will update the addresses used by the switcher.
422	*
423	* @param pVM The cross context VM structure.
424	*/
425	VMMR3DECL(void) CPUMR3Relocate(PVM pVM)
426	{
427	RT_NOREF(pVM);
428	}
429
430
431	/**
432	* Terminates the CPUM.
433	*
434	* Termination means cleaning up and freeing all resources,
435	* the VM it self is at this point powered off or suspended.
436	*
437	* @returns VBox status code.
438	* @param pVM The cross context VM structure.
439	*/
440	VMMR3DECL(int) CPUMR3Term(PVM pVM)
441	{
442	RT_NOREF(pVM);
443	return VINF_SUCCESS;
444	}
445
446
447	/**
448	* Resets a virtual CPU.
449	*
450	* Used by CPUMR3Reset and CPU hot plugging.
451	*
452	* @param pVM The cross context VM structure.
453	* @param pVCpu The cross context virtual CPU structure of the CPU that is
454	* being reset. This may differ from the current EMT.
455	*/
456	VMMR3DECL(void) CPUMR3ResetCpu(PVM pVM, PVMCPU pVCpu)
457	{
458	RT_NOREF(pVM);
459
460	/** @todo anything different for VCPU > 0? */
461	PCPUMCTX pCtx = &pVCpu->cpum.s.Guest;
462
463	/*
464	* Initialize everything to ZERO first.
465	*/
466	RT_BZERO(pCtx, sizeof(*pCtx));
467
468	/* Start in Supervisor mode. */
469	/** @todo Differentiate between Aarch64 and Aarch32 configuation. */
470	pCtx->fPState = ARMV8_SPSR_EL2_AARCH64_SET_EL(ARMV8_AARCH64_EL_1)
471	\| ARMV8_SPSR_EL2_AARCH64_SP
472	\| ARMV8_SPSR_EL2_AARCH64_D
473	\| ARMV8_SPSR_EL2_AARCH64_A
474	\| ARMV8_SPSR_EL2_AARCH64_I
475	\| ARMV8_SPSR_EL2_AARCH64_F;
476
477	pCtx->Pc.u64 = pVM->cpum.s.u64ResetPc;
478	/** @todo */
479	}
480
481
482	/**
483	* Resets the CPU.
484	*
485	* @param pVM The cross context VM structure.
486	*/
487	VMMR3DECL(void) CPUMR3Reset(PVM pVM)
488	{
489	for (VMCPUID idCpu = 0; idCpu < pVM->cCpus; idCpu++)
490	{
491	PVMCPU pVCpu = pVM->apCpusR3[idCpu];
492	CPUMR3ResetCpu(pVM, pVCpu);
493	}
494	}
495
496
497
498
499	/**
500	* Pass 0 live exec callback.
501	*
502	* @returns VINF_SSM_DONT_CALL_AGAIN.
503	* @param pVM The cross context VM structure.
504	* @param pSSM The saved state handle.
505	* @param uPass The pass (0).
506	*/
507	static DECLCALLBACK(int) cpumR3LiveExec(PVM pVM, PSSMHANDLE pSSM, uint32_t uPass)
508	{
509	AssertReturn(uPass == 0, VERR_SSM_UNEXPECTED_PASS);
510	cpumR3SaveCpuId(pVM, pSSM);
511	return VINF_SSM_DONT_CALL_AGAIN;
512	}
513
514
515	/**
516	* Execute state save operation.
517	*
518	* @returns VBox status code.
519	* @param pVM The cross context VM structure.
520	* @param pSSM SSM operation handle.
521	*/
522	static DECLCALLBACK(int) cpumR3SaveExec(PVM pVM, PSSMHANDLE pSSM)
523	{
524	/*
525	* Save.
526	*/
527	SSMR3PutU32(pSSM, pVM->cCpus);
528	for (VMCPUID idCpu = 0; idCpu < pVM->cCpus; idCpu++)
529	{
530	PVMCPU const pVCpu = pVM->apCpusR3[idCpu];
531	PCPUMCTX const pGstCtx = &pVCpu->cpum.s.Guest;
532
533	SSMR3PutStructEx(pSSM, pGstCtx, sizeof(*pGstCtx), 0, g_aCpumCtxFields, NULL);
534
535	SSMR3PutU32(pSSM, pVCpu->cpum.s.fChanged);
536	}
537
538	cpumR3SaveCpuId(pVM, pSSM);
539	return VINF_SUCCESS;
540	}
541
542
543	/**
544	* @callback_method_impl{FNSSMINTLOADPREP}
545	*/
546	static DECLCALLBACK(int) cpumR3LoadPrep(PVM pVM, PSSMHANDLE pSSM)
547	{
548	RT_NOREF(pSSM);
549	pVM->cpum.s.fPendingRestore = true;
550	return VINF_SUCCESS;
551	}
552
553
554	/**
555	* @callback_method_impl{FNSSMINTLOADEXEC}
556	*/
557	static DECLCALLBACK(int) cpumR3LoadExec(PVM pVM, PSSMHANDLE pSSM, uint32_t uVersion, uint32_t uPass)
558	{
559	/*
560	* Validate version.
561	*/
562	if (uVersion != CPUM_SAVED_STATE_VERSION)
563	{
564	AssertMsgFailed(("cpumR3LoadExec: Invalid version uVersion=%d!\n", uVersion));
565	return VERR_SSM_UNSUPPORTED_DATA_UNIT_VERSION;
566	}
567
568	if (uPass == SSM_PASS_FINAL)
569	{
570	uint32_t cCpus;
571	int rc = SSMR3GetU32(pSSM, &cCpus); AssertRCReturn(rc, rc);
572	AssertLogRelMsgReturn(cCpus == pVM->cCpus, ("Mismatching CPU counts: saved: %u; configured: %u \n", cCpus, pVM->cCpus),
573	VERR_SSM_UNEXPECTED_DATA);
574
575	/*
576	* Do the per-CPU restoring.
577	*/
578	for (VMCPUID idCpu = 0; idCpu < pVM->cCpus; idCpu++)
579	{
580	PVMCPU pVCpu = pVM->apCpusR3[idCpu];
581	PCPUMCTX pGstCtx = &pVCpu->cpum.s.Guest;
582
583	/*
584	* Restore the CPUMCTX structure.
585	*/
586	rc = SSMR3GetStructEx(pSSM, pGstCtx, sizeof(*pGstCtx), 0, g_aCpumCtxFields, NULL);
587	AssertRCReturn(rc, rc);
588
589	/*
590	* Restore a couple of flags.
591	*/
592	SSMR3GetU32(pSSM, &pVCpu->cpum.s.fChanged);
593	}
594	}
595
596	pVM->cpum.s.fPendingRestore = false;
597
598	/* Load CPUID and explode guest features. */
599	return cpumR3LoadCpuId(pVM, pSSM, uVersion);
600	}
601
602
603	/**
604	* @callback_method_impl{FNSSMINTLOADDONE}
605	*/
606	static DECLCALLBACK(int) cpumR3LoadDone(PVM pVM, PSSMHANDLE pSSM)
607	{
608	if (RT_FAILURE(SSMR3HandleGetStatus(pSSM)))
609	return VINF_SUCCESS;
610
611	/* just check this since we can. / /* @todo Add a SSM unit flag for indicating that it's mandatory during a restore. */
612	if (pVM->cpum.s.fPendingRestore)
613	{
614	LogRel(("CPUM: Missing state!\n"));
615	return VERR_INTERNAL_ERROR_2;
616	}
617
618	/** @todo */
619	return VINF_SUCCESS;
620	}
621
622
623	/**
624	* Checks if the CPUM state restore is still pending.
625	*
626	* @returns true / false.
627	* @param pVM The cross context VM structure.
628	*/
629	VMMDECL(bool) CPUMR3IsStateRestorePending(PVM pVM)
630	{
631	return pVM->cpum.s.fPendingRestore;
632	}
633
634
635	/**
636	* Formats the PSTATE value into mnemonics.
637	*
638	* @param pszPState Where to write the mnemonics. (Assumes sufficient buffer space.)
639	* @param fPState The PSTATE value with both guest hardware and VBox
640	* internal bits included.
641	*/
642	static void cpumR3InfoFormatPState(char *pszPState, uint32_t fPState)
643	{
644	/*
645	* Format the flags.
646	*/
647	static const struct
648	{
649	const char pszSet; const char pszClear; uint32_t fFlag;
650	} s_aFlags[] =
651	{
652	{ "SP", "nSP", ARMV8_SPSR_EL2_AARCH64_SP },
653	{ "M4", "nM4", ARMV8_SPSR_EL2_AARCH64_M4 },
654	{ "T", "nT", ARMV8_SPSR_EL2_AARCH64_T },
655	{ "nF", "F", ARMV8_SPSR_EL2_AARCH64_F },
656	{ "nI", "I", ARMV8_SPSR_EL2_AARCH64_I },
657	{ "nA", "A", ARMV8_SPSR_EL2_AARCH64_A },
658	{ "nD", "D", ARMV8_SPSR_EL2_AARCH64_D },
659	{ "V", "nV", ARMV8_SPSR_EL2_AARCH64_V },
660	{ "C", "nC", ARMV8_SPSR_EL2_AARCH64_C },
661	{ "Z", "nZ", ARMV8_SPSR_EL2_AARCH64_Z },
662	{ "N", "nN", ARMV8_SPSR_EL2_AARCH64_N },
663	};
664	char *psz = pszPState;
665	for (unsigned i = 0; i < RT_ELEMENTS(s_aFlags); i++)
666	{
667	const char *pszAdd = s_aFlags[i].fFlag & fPState ? s_aFlags[i].pszSet : s_aFlags[i].pszClear;
668	if (pszAdd)
669	{
670	strcpy(psz, pszAdd);
671	psz += strlen(pszAdd);
672	*psz++ = ' ';
673	}
674	}
675	psz[-1] = '\0';
676	}
677
678
679	/**
680	* Formats a full register dump.
681	*
682	* @param pVM The cross context VM structure.
683	* @param pCtx The context to format.
684	* @param pHlp Output functions.
685	* @param enmType The dump type.
686	*/
687	static void cpumR3InfoOne(PVM pVM, PCPUMCTX pCtx, PCDBGFINFOHLP pHlp, CPUMDUMPTYPE enmType)
688	{
689	RT_NOREF(pVM);
690
691	/*
692	* Format the PSTATE.
693	*/
694	char szPState[80];
695	cpumR3InfoFormatPState(&szPState[0], pCtx->fPState);
696
697	/*
698	* Format the registers.
699	*/
700	switch (enmType)
701	{
702	case CPUMDUMPTYPE_TERSE:
703	if (CPUMIsGuestIn64BitCodeEx(pCtx))
704	pHlp->pfnPrintf(pHlp,
705	"x0=%016RX64 x1=%016RX64 x2=%016RX64 x3=%016RX64\n"
706	"x4=%016RX64 x5=%016RX64 x6=%016RX64 x7=%016RX64\n"
707	"x8=%016RX64 x9=%016RX64 x10=%016RX64 x11=%016RX64\n"
708	"x12=%016RX64 x13=%016RX64 x14=%016RX64 x15=%016RX64\n"
709	"x16=%016RX64 x17=%016RX64 x18=%016RX64 x19=%016RX64\n"
710	"x20=%016RX64 x21=%016RX64 x22=%016RX64 x23=%016RX64\n"
711	"x24=%016RX64 x25=%016RX64 x26=%016RX64 x27=%016RX64\n"
712	"x28=%016RX64 x29=%016RX64 x30=%016RX64\n"
713	"pc=%016RX64 pstate=%016RX64 %s\n"
714	"sp_el0=%016RX64 sp_el1=%016RX64\n",
715	pCtx->aGRegs[0], pCtx->aGRegs[1], pCtx->aGRegs[2], pCtx->aGRegs[3],
716	pCtx->aGRegs[4], pCtx->aGRegs[5], pCtx->aGRegs[6], pCtx->aGRegs[7],
717	pCtx->aGRegs[8], pCtx->aGRegs[9], pCtx->aGRegs[10], pCtx->aGRegs[11],
718	pCtx->aGRegs[12], pCtx->aGRegs[13], pCtx->aGRegs[14], pCtx->aGRegs[15],
719	pCtx->aGRegs[16], pCtx->aGRegs[17], pCtx->aGRegs[18], pCtx->aGRegs[19],
720	pCtx->aGRegs[20], pCtx->aGRegs[21], pCtx->aGRegs[22], pCtx->aGRegs[23],
721	pCtx->aGRegs[24], pCtx->aGRegs[25], pCtx->aGRegs[26], pCtx->aGRegs[27],
722	pCtx->aGRegs[28], pCtx->aGRegs[29], pCtx->aGRegs[30],
723	pCtx->Pc.u64, pCtx->fPState, szPState,
724	pCtx->aSpReg[0].u64, pCtx->aSpReg[1].u64);
725	else
726	AssertFailed();
727	break;
728
729	case CPUMDUMPTYPE_DEFAULT:
730	if (CPUMIsGuestIn64BitCodeEx(pCtx))
731	pHlp->pfnPrintf(pHlp,
732	"x0=%016RX64 x1=%016RX64 x2=%016RX64 x3=%016RX64\n"
733	"x4=%016RX64 x5=%016RX64 x6=%016RX64 x7=%016RX64\n"
734	"x8=%016RX64 x9=%016RX64 x10=%016RX64 x11=%016RX64\n"
735	"x12=%016RX64 x13=%016RX64 x14=%016RX64 x15=%016RX64\n"
736	"x16=%016RX64 x17=%016RX64 x18=%016RX64 x19=%016RX64\n"
737	"x20=%016RX64 x21=%016RX64 x22=%016RX64 x23=%016RX64\n"
738	"x24=%016RX64 x25=%016RX64 x26=%016RX64 x27=%016RX64\n"
739	"x28=%016RX64 x29=%016RX64 x30=%016RX64\n"
740	"pc=%016RX64 pstate=%016RX64 %s\n"
741	"sp_el0=%016RX64 sp_el1=%016RX64 sctlr_el1=%016RX64\n"
742	"tcr_el1=%016RX64 ttbr0_el1=%016RX64 ttbr1_el1=%016RX64\n"
743	"vbar_el1=%016RX64 elr_el1=%016RX64 esr_el1=%016RX64\n",
744	pCtx->aGRegs[0], pCtx->aGRegs[1], pCtx->aGRegs[2], pCtx->aGRegs[3],
745	pCtx->aGRegs[4], pCtx->aGRegs[5], pCtx->aGRegs[6], pCtx->aGRegs[7],
746	pCtx->aGRegs[8], pCtx->aGRegs[9], pCtx->aGRegs[10], pCtx->aGRegs[11],
747	pCtx->aGRegs[12], pCtx->aGRegs[13], pCtx->aGRegs[14], pCtx->aGRegs[15],
748	pCtx->aGRegs[16], pCtx->aGRegs[17], pCtx->aGRegs[18], pCtx->aGRegs[19],
749	pCtx->aGRegs[20], pCtx->aGRegs[21], pCtx->aGRegs[22], pCtx->aGRegs[23],
750	pCtx->aGRegs[24], pCtx->aGRegs[25], pCtx->aGRegs[26], pCtx->aGRegs[27],
751	pCtx->aGRegs[28], pCtx->aGRegs[29], pCtx->aGRegs[30],
752	pCtx->Pc.u64, pCtx->fPState, szPState,
753	pCtx->aSpReg[0].u64, pCtx->aSpReg[1].u64, pCtx->Sctlr.u64,
754	pCtx->Tcr.u64, pCtx->Ttbr0.u64, pCtx->Ttbr1.u64,
755	pCtx->VBar.u64, pCtx->Elr.u64, pCtx->Esr.u64);
756	else
757	AssertFailed();
758	break;
759
760	case CPUMDUMPTYPE_VERBOSE:
761	if (CPUMIsGuestIn64BitCodeEx(pCtx))
762	pHlp->pfnPrintf(pHlp,
763	"x0=%016RX64 x1=%016RX64 x2=%016RX64 x3=%016RX64\n"
764	"x4=%016RX64 x5=%016RX64 x6=%016RX64 x7=%016RX64\n"
765	"x8=%016RX64 x9=%016RX64 x10=%016RX64 x11=%016RX64\n"
766	"x12=%016RX64 x13=%016RX64 x14=%016RX64 x15=%016RX64\n"
767	"x16=%016RX64 x17=%016RX64 x18=%016RX64 x19=%016RX64\n"
768	"x20=%016RX64 x21=%016RX64 x22=%016RX64 x23=%016RX64\n"
769	"x24=%016RX64 x25=%016RX64 x26=%016RX64 x27=%016RX64\n"
770	"x28=%016RX64 x29=%016RX64 x30=%016RX64\n"
771	"pc=%016RX64 pstate=%016RX64 %s\n"
772	"sp_el0=%016RX64 sp_el1=%016RX64 sctlr_el1=%016RX64\n"
773	"tcr_el1=%016RX64 ttbr0_el1=%016RX64 ttbr1_el1=%016RX64\n"
774	"vbar_el1=%016RX64 elr_el1=%016RX64 esr_el1=%016RX64\n"
775	"contextidr_el1=%016RX64 tpidrr0_el0=%016RX64\n"
776	"tpidr_el0=%016RX64 tpidr_el1=%016RX64\n"
777	"far_el1=%016RX64 mair_el1=%016RX64 par_el1=%016RX64\n"
778	"cntv_ctl_el0=%016RX64 cntv_val_el0=%016RX64\n"
779	"afsr0_el1=%016RX64 afsr0_el1=%016RX64 amair_el1=%016RX64\n"
780	"cntkctl_el1=%016RX64 cpacr_el1=%016RX64 csselr_el1=%016RX64\n"
781	"mdccint_el1=%016RX64\n",
782	pCtx->aGRegs[0], pCtx->aGRegs[1], pCtx->aGRegs[2], pCtx->aGRegs[3],
783	pCtx->aGRegs[4], pCtx->aGRegs[5], pCtx->aGRegs[6], pCtx->aGRegs[7],
784	pCtx->aGRegs[8], pCtx->aGRegs[9], pCtx->aGRegs[10], pCtx->aGRegs[11],
785	pCtx->aGRegs[12], pCtx->aGRegs[13], pCtx->aGRegs[14], pCtx->aGRegs[15],
786	pCtx->aGRegs[16], pCtx->aGRegs[17], pCtx->aGRegs[18], pCtx->aGRegs[19],
787	pCtx->aGRegs[20], pCtx->aGRegs[21], pCtx->aGRegs[22], pCtx->aGRegs[23],
788	pCtx->aGRegs[24], pCtx->aGRegs[25], pCtx->aGRegs[26], pCtx->aGRegs[27],
789	pCtx->aGRegs[28], pCtx->aGRegs[29], pCtx->aGRegs[30],
790	pCtx->Pc.u64, pCtx->fPState, szPState,
791	pCtx->aSpReg[0].u64, pCtx->aSpReg[1].u64, pCtx->Sctlr.u64,
792	pCtx->Tcr.u64, pCtx->Ttbr0.u64, pCtx->Ttbr1.u64,
793	pCtx->VBar.u64, pCtx->Elr.u64, pCtx->Esr.u64,
794	pCtx->ContextIdr.u64, pCtx->TpIdrRoEl0.u64,
795	pCtx->aTpIdr[0].u64, pCtx->aTpIdr[1].u64,
796	pCtx->Far.u64, pCtx->Mair.u64, pCtx->Par.u64,
797	pCtx->CntvCtlEl0, pCtx->CntvCValEl0,
798	pCtx->Afsr0.u64, pCtx->Afsr1.u64, pCtx->Amair.u64,
799	pCtx->CntKCtl.u64, pCtx->Cpacr.u64, pCtx->Csselr.u64,
800	pCtx->MDccInt.u64);
801	else
802	AssertFailed();
803
804	pHlp->pfnPrintf(pHlp, "fpcr=%016RX64 fpsr=%016RX64\n", pCtx->fpcr, pCtx->fpsr);
805	for (unsigned i = 0; i < RT_ELEMENTS(pCtx->aVRegs); i++)
806	pHlp->pfnPrintf(pHlp,
807	i & 1
808	? "q%u%s=%08RX32'%08RX32'%08RX32'%08RX32\n"
809	: "q%u%s=%08RX32'%08RX32'%08RX32'%08RX32 ",
810	i, i < 10 ? " " : "",
811	pCtx->aVRegs[i].au32[3],
812	pCtx->aVRegs[i].au32[2],
813	pCtx->aVRegs[i].au32[1],
814	pCtx->aVRegs[i].au32[0]);
815
816	pHlp->pfnPrintf(pHlp, "mdscr_el1=%016RX64\n", pCtx->Mdscr.u64);
817	for (unsigned i = 0; i < RT_ELEMENTS(pCtx->aBp); i++)
818	pHlp->pfnPrintf(pHlp, "DbgBp%u%s: Control=%016RX64 Value=%016RX64\n",
819	i, i < 10 ? " " : "",
820	pCtx->aBp[i].Ctrl, pCtx->aBp[i].Value);
821
822	for (unsigned i = 0; i < RT_ELEMENTS(pCtx->aWp); i++)
823	pHlp->pfnPrintf(pHlp, "DbgWp%u%s: Control=%016RX64 Value=%016RX64\n",
824	i, i < 10 ? " " : "",
825	pCtx->aWp[i].Ctrl, pCtx->aWp[i].Value);
826
827	pHlp->pfnPrintf(pHlp, "APDAKey=%016RX64'%016RX64\n", pCtx->Apda.High.u64, pCtx->Apda.Low.u64);
828	pHlp->pfnPrintf(pHlp, "APDBKey=%016RX64'%016RX64\n", pCtx->Apdb.High.u64, pCtx->Apdb.Low.u64);
829	pHlp->pfnPrintf(pHlp, "APGAKey=%016RX64'%016RX64\n", pCtx->Apga.High.u64, pCtx->Apga.Low.u64);
830	pHlp->pfnPrintf(pHlp, "APIAKey=%016RX64'%016RX64\n", pCtx->Apia.High.u64, pCtx->Apia.Low.u64);
831	pHlp->pfnPrintf(pHlp, "APIBKey=%016RX64'%016RX64\n", pCtx->Apib.High.u64, pCtx->Apib.Low.u64);
832
833	break;
834	}
835	}
836
837
838	/**
839	* Display all cpu states and any other cpum info.
840	*
841	* @param pVM The cross context VM structure.
842	* @param pHlp The info helper functions.
843	* @param pszArgs Arguments, ignored.
844	*/
845	static DECLCALLBACK(void) cpumR3InfoAll(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs)
846	{
847	cpumR3InfoGuest(pVM, pHlp, pszArgs);
848	cpumR3InfoGuestInstr(pVM, pHlp, pszArgs);
849	}
850
851
852	/**
853	* Parses the info argument.
854	*
855	* The argument starts with 'verbose', 'terse' or 'default' and then
856	* continues with the comment string.
857	*
858	* @param pszArgs The pointer to the argument string.
859	* @param penmType Where to store the dump type request.
860	* @param ppszComment Where to store the pointer to the comment string.
861	*/
862	static void cpumR3InfoParseArg(const char pszArgs, CPUMDUMPTYPE penmType, const char **ppszComment)
863	{
864	if (!pszArgs)
865	{
866	*penmType = CPUMDUMPTYPE_DEFAULT;
867	*ppszComment = "";
868	}
869	else
870	{
871	if (!strncmp(pszArgs, RT_STR_TUPLE("verbose")))
872	{
873	pszArgs += 7;
874	*penmType = CPUMDUMPTYPE_VERBOSE;
875	}
876	else if (!strncmp(pszArgs, RT_STR_TUPLE("terse")))
877	{
878	pszArgs += 5;
879	*penmType = CPUMDUMPTYPE_TERSE;
880	}
881	else if (!strncmp(pszArgs, RT_STR_TUPLE("default")))
882	{
883	pszArgs += 7;
884	*penmType = CPUMDUMPTYPE_DEFAULT;
885	}
886	else
887	*penmType = CPUMDUMPTYPE_DEFAULT;
888	*ppszComment = RTStrStripL(pszArgs);
889	}
890	}
891
892
893	/**
894	* Display the guest cpu state.
895	*
896	* @param pVM The cross context VM structure.
897	* @param pHlp The info helper functions.
898	* @param pszArgs Arguments.
899	*/
900	static DECLCALLBACK(void) cpumR3InfoGuest(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs)
901	{
902	CPUMDUMPTYPE enmType;
903	const char *pszComment;
904	cpumR3InfoParseArg(pszArgs, &enmType, &pszComment);
905
906	PVMCPU pVCpu = VMMGetCpu(pVM);
907	if (!pVCpu)
908	pVCpu = pVM->apCpusR3[0];
909
910	pHlp->pfnPrintf(pHlp, "Guest CPUM (VCPU %d) state: %s\n", pVCpu->idCpu, pszComment);
911
912	PCPUMCTX pCtx = &pVCpu->cpum.s.Guest;
913	cpumR3InfoOne(pVM, pCtx, pHlp, enmType);
914	}
915
916
917	/**
918	* Display the current guest instruction
919	*
920	* @param pVM The cross context VM structure.
921	* @param pHlp The info helper functions.
922	* @param pszArgs Arguments, ignored.
923	*/
924	static DECLCALLBACK(void) cpumR3InfoGuestInstr(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs)
925	{
926	NOREF(pszArgs);
927
928	PVMCPU pVCpu = VMMGetCpu(pVM);
929	if (!pVCpu)
930	pVCpu = pVM->apCpusR3[0];
931
932	char szInstruction[256];
933	szInstruction[0] = '\0';
934	DBGFR3DisasInstrCurrent(pVCpu, szInstruction, sizeof(szInstruction));
935	pHlp->pfnPrintf(pHlp, "\nCPUM%u: %s\n\n", pVCpu->idCpu, szInstruction);
936	}
937
938
939	/**
940	* Called when the ring-3 init phase completes.
941	*
942	* @returns VBox status code.
943	* @param pVM The cross context VM structure.
944	* @param enmWhat Which init phase.
945	*/
946	VMMR3DECL(int) CPUMR3InitCompleted(PVM pVM, VMINITCOMPLETED enmWhat)
947	{
948	RT_NOREF(pVM, enmWhat);
949	return VINF_SUCCESS;
950	}
951
952
953	/**
954	* Called when the ring-0 init phases completed.
955	*
956	* @param pVM The cross context VM structure.
957	*/
958	VMMR3DECL(void) CPUMR3LogCpuIdAndMsrFeatures(PVM pVM)
959	{
960	/*
961	* Enable log buffering as we're going to log a lot of lines.
962	*/
963	bool const fOldBuffered = RTLogRelSetBuffering(true /fBuffered/);
964
965	/*
966	* Log the cpuid.
967	*/
968	RTCPUSET OnlineSet;
969	LogRel(("CPUM: Logical host processors: %u present, %u max, %u online, online mask: %016RX64\n",
970	(unsigned)RTMpGetPresentCount(), (unsigned)RTMpGetCount(), (unsigned)RTMpGetOnlineCount(),
971	RTCpuSetToU64(RTMpGetOnlineSet(&OnlineSet)) ));
972	RTCPUID cCores = RTMpGetCoreCount();
973	if (cCores)
974	LogRel(("CPUM: Physical host cores: %u\n", (unsigned)cCores));
975	LogRel(("*********************** CPUID dump **********************\n"));
976	DBGFR3Info(pVM->pUVM, "cpuid", "verbose", DBGFR3InfoLogRelHlp());
977	LogRel(("\n"));
978	DBGFR3_INFO_LOG_SAFE(pVM, "cpuid", "verbose"); /* macro */
979	LogRel(("****************** End of CPUID dump ********************\n"));
980
981	LogRel(("****************** CPU feature dump *********************\n"));
982	DBGFR3Info(pVM->pUVM, "cpufeat", "verbose", DBGFR3InfoLogRelHlp());
983	LogRel(("\n"));
984	DBGFR3_INFO_LOG_SAFE(pVM, "cpufeat", "verbose"); /* macro */
985	LogRel(("*************** End of CPU feature dump *****************\n"));
986
987	/*
988	* Restore the log buffering state to what it was previously.
989	*/
990	RTLogRelSetBuffering(fOldBuffered);
991	}
992
993
994	/**
995	* Marks the guest debug state as active.
996	*
997	* @param pVCpu The cross context virtual CPU structure.
998	*
999	* @note This is used solely by NEM (hence the name) to set the correct flags here
1000	* without loading the host's DRx registers, which is not possible from ring-3 anyway.
1001	* The specific NEM backends have to make sure to load the correct values.
1002	*/
1003	VMMR3_INT_DECL(void) CPUMR3NemActivateGuestDebugState(PVMCPUCC pVCpu)
1004	{
1005	ASMAtomicAndU32(&pVCpu->cpum.s.fUseFlags, ~CPUM_USED_DEBUG_REGS_HYPER);
1006	ASMAtomicOrU32(&pVCpu->cpum.s.fUseFlags, CPUM_USED_DEBUG_REGS_GUEST);
1007	}
1008
1009
1010	/**
1011	* Marks the hyper debug state as active.
1012	*
1013	* @param pVCpu The cross context virtual CPU structure.
1014	*
1015	* @note This is used solely by NEM (hence the name) to set the correct flags here
1016	* without loading the host's debug registers, which is not possible from ring-3 anyway.
1017	* The specific NEM backends have to make sure to load the correct values.
1018	*/
1019	VMMR3_INT_DECL(void) CPUMR3NemActivateHyperDebugState(PVMCPUCC pVCpu)
1020	{
1021	ASMAtomicAndU32(&pVCpu->cpum.s.fUseFlags, ~CPUM_USED_DEBUG_REGS_GUEST);
1022	ASMAtomicOrU32(&pVCpu->cpum.s.fUseFlags, CPUM_USED_DEBUG_REGS_HYPER);
1023	}

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source: vbox/trunk/src/VBox/VMM/VMMR3/CPUM-armv8.cpp@ 102557

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