VirtualBox

source: vbox/trunk/src/VBox/VMM/VMMR3/APIC.cpp@ 62890

Last change on this file since 62890 was 62658, checked in by vboxsync, 8 years ago

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1/* $Id: APIC.cpp 62658 2016-07-28 22:31:46Z vboxsync $ */
2/** @file
3 * APIC - Advanced Programmable Interrupt Controller.
4 */
5
6/*
7 * Copyright (C) 2016 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_DEV_APIC
23#include <VBox/log.h>
24#include "APICInternal.h"
25#include <VBox/vmm/cpum.h>
26#include <VBox/vmm/hm.h>
27#include <VBox/vmm/mm.h>
28#include <VBox/vmm/pdmdev.h>
29#include <VBox/vmm/ssm.h>
30#include <VBox/vmm/vm.h>
31
32
33#ifndef VBOX_DEVICE_STRUCT_TESTCASE
34
35
36/*********************************************************************************************************************************
37* Defined Constants And Macros *
38*********************************************************************************************************************************/
39/** The current APIC saved state version. */
40#define APIC_SAVED_STATE_VERSION 5
41/** VirtualBox 5.1 beta2 - pre fActiveLintX. */
42#define APIC_SAVED_STATE_VERSION_VBOX_51_BETA2 4
43/** The saved state version used by VirtualBox 5.0 and
44 * earlier. */
45#define APIC_SAVED_STATE_VERSION_VBOX_50 3
46/** The saved state version used by VirtualBox v3 and earlier.
47 * This does not include the config. */
48#define APIC_SAVED_STATE_VERSION_VBOX_30 2
49/** Some ancient version... */
50#define APIC_SAVED_STATE_VERSION_ANCIENT 1
51
52#ifdef VBOX_WITH_STATISTICS
53# define X2APIC_MSRRANGE(a_uFirst, a_uLast, a_szName) \
54 { (a_uFirst), (a_uLast), kCpumMsrRdFn_Ia32X2ApicN, kCpumMsrWrFn_Ia32X2ApicN, 0, 0, 0, 0, 0, a_szName, { 0 }, { 0 }, { 0 }, { 0 } }
55#else
56# define X2APIC_MSRRANGE(a_uFirst, a_uLast, a_szName) \
57 { (a_uFirst), (a_uLast), kCpumMsrRdFn_Ia32X2ApicN, kCpumMsrWrFn_Ia32X2ApicN, 0, 0, 0, 0, 0, a_szName }
58#endif
59
60
61/*********************************************************************************************************************************
62* Global Variables *
63*********************************************************************************************************************************/
64/**
65 * MSR range supported by the x2APIC.
66 * See Intel spec. 10.12.2 "x2APIC Register Availability".
67 */
68static CPUMMSRRANGE const g_MsrRange_x2Apic = X2APIC_MSRRANGE(MSR_IA32_X2APIC_START, MSR_IA32_X2APIC_END, "x2APIC range");
69#undef X2APIC_MSRRANGE
70
71/** Saved state field descriptors for XAPICPAGE. */
72static const SSMFIELD g_aXApicPageFields[] =
73{
74 SSMFIELD_ENTRY( XAPICPAGE, id.u8ApicId),
75 SSMFIELD_ENTRY( XAPICPAGE, version.all.u32Version),
76 SSMFIELD_ENTRY( XAPICPAGE, tpr.u8Tpr),
77 SSMFIELD_ENTRY( XAPICPAGE, apr.u8Apr),
78 SSMFIELD_ENTRY( XAPICPAGE, ppr.u8Ppr),
79 SSMFIELD_ENTRY( XAPICPAGE, ldr.all.u32Ldr),
80 SSMFIELD_ENTRY( XAPICPAGE, dfr.all.u32Dfr),
81 SSMFIELD_ENTRY( XAPICPAGE, svr.all.u32Svr),
82 SSMFIELD_ENTRY( XAPICPAGE, isr.u[0].u32Reg),
83 SSMFIELD_ENTRY( XAPICPAGE, isr.u[1].u32Reg),
84 SSMFIELD_ENTRY( XAPICPAGE, isr.u[2].u32Reg),
85 SSMFIELD_ENTRY( XAPICPAGE, isr.u[3].u32Reg),
86 SSMFIELD_ENTRY( XAPICPAGE, isr.u[4].u32Reg),
87 SSMFIELD_ENTRY( XAPICPAGE, isr.u[5].u32Reg),
88 SSMFIELD_ENTRY( XAPICPAGE, isr.u[6].u32Reg),
89 SSMFIELD_ENTRY( XAPICPAGE, isr.u[7].u32Reg),
90 SSMFIELD_ENTRY( XAPICPAGE, tmr.u[0].u32Reg),
91 SSMFIELD_ENTRY( XAPICPAGE, tmr.u[1].u32Reg),
92 SSMFIELD_ENTRY( XAPICPAGE, tmr.u[2].u32Reg),
93 SSMFIELD_ENTRY( XAPICPAGE, tmr.u[3].u32Reg),
94 SSMFIELD_ENTRY( XAPICPAGE, tmr.u[4].u32Reg),
95 SSMFIELD_ENTRY( XAPICPAGE, tmr.u[5].u32Reg),
96 SSMFIELD_ENTRY( XAPICPAGE, tmr.u[6].u32Reg),
97 SSMFIELD_ENTRY( XAPICPAGE, tmr.u[7].u32Reg),
98 SSMFIELD_ENTRY( XAPICPAGE, irr.u[0].u32Reg),
99 SSMFIELD_ENTRY( XAPICPAGE, irr.u[1].u32Reg),
100 SSMFIELD_ENTRY( XAPICPAGE, irr.u[2].u32Reg),
101 SSMFIELD_ENTRY( XAPICPAGE, irr.u[3].u32Reg),
102 SSMFIELD_ENTRY( XAPICPAGE, irr.u[4].u32Reg),
103 SSMFIELD_ENTRY( XAPICPAGE, irr.u[5].u32Reg),
104 SSMFIELD_ENTRY( XAPICPAGE, irr.u[6].u32Reg),
105 SSMFIELD_ENTRY( XAPICPAGE, irr.u[7].u32Reg),
106 SSMFIELD_ENTRY( XAPICPAGE, esr.all.u32Errors),
107 SSMFIELD_ENTRY( XAPICPAGE, icr_lo.all.u32IcrLo),
108 SSMFIELD_ENTRY( XAPICPAGE, icr_hi.all.u32IcrHi),
109 SSMFIELD_ENTRY( XAPICPAGE, lvt_timer.all.u32LvtTimer),
110 SSMFIELD_ENTRY( XAPICPAGE, lvt_thermal.all.u32LvtThermal),
111 SSMFIELD_ENTRY( XAPICPAGE, lvt_perf.all.u32LvtPerf),
112 SSMFIELD_ENTRY( XAPICPAGE, lvt_lint0.all.u32LvtLint0),
113 SSMFIELD_ENTRY( XAPICPAGE, lvt_lint1.all.u32LvtLint1),
114 SSMFIELD_ENTRY( XAPICPAGE, lvt_error.all.u32LvtError),
115 SSMFIELD_ENTRY( XAPICPAGE, timer_icr.u32InitialCount),
116 SSMFIELD_ENTRY( XAPICPAGE, timer_ccr.u32CurrentCount),
117 SSMFIELD_ENTRY( XAPICPAGE, timer_dcr.all.u32DivideValue),
118 SSMFIELD_ENTRY_TERM()
119};
120
121/** Saved state field descriptors for X2APICPAGE. */
122static const SSMFIELD g_aX2ApicPageFields[] =
123{
124 SSMFIELD_ENTRY(X2APICPAGE, id.u32ApicId),
125 SSMFIELD_ENTRY(X2APICPAGE, version.all.u32Version),
126 SSMFIELD_ENTRY(X2APICPAGE, tpr.u8Tpr),
127 SSMFIELD_ENTRY(X2APICPAGE, ppr.u8Ppr),
128 SSMFIELD_ENTRY(X2APICPAGE, ldr.u32LogicalApicId),
129 SSMFIELD_ENTRY(X2APICPAGE, svr.all.u32Svr),
130 SSMFIELD_ENTRY(X2APICPAGE, isr.u[0].u32Reg),
131 SSMFIELD_ENTRY(X2APICPAGE, isr.u[1].u32Reg),
132 SSMFIELD_ENTRY(X2APICPAGE, isr.u[2].u32Reg),
133 SSMFIELD_ENTRY(X2APICPAGE, isr.u[3].u32Reg),
134 SSMFIELD_ENTRY(X2APICPAGE, isr.u[4].u32Reg),
135 SSMFIELD_ENTRY(X2APICPAGE, isr.u[5].u32Reg),
136 SSMFIELD_ENTRY(X2APICPAGE, isr.u[6].u32Reg),
137 SSMFIELD_ENTRY(X2APICPAGE, isr.u[7].u32Reg),
138 SSMFIELD_ENTRY(X2APICPAGE, tmr.u[0].u32Reg),
139 SSMFIELD_ENTRY(X2APICPAGE, tmr.u[1].u32Reg),
140 SSMFIELD_ENTRY(X2APICPAGE, tmr.u[2].u32Reg),
141 SSMFIELD_ENTRY(X2APICPAGE, tmr.u[3].u32Reg),
142 SSMFIELD_ENTRY(X2APICPAGE, tmr.u[4].u32Reg),
143 SSMFIELD_ENTRY(X2APICPAGE, tmr.u[5].u32Reg),
144 SSMFIELD_ENTRY(X2APICPAGE, tmr.u[6].u32Reg),
145 SSMFIELD_ENTRY(X2APICPAGE, tmr.u[7].u32Reg),
146 SSMFIELD_ENTRY(X2APICPAGE, irr.u[0].u32Reg),
147 SSMFIELD_ENTRY(X2APICPAGE, irr.u[1].u32Reg),
148 SSMFIELD_ENTRY(X2APICPAGE, irr.u[2].u32Reg),
149 SSMFIELD_ENTRY(X2APICPAGE, irr.u[3].u32Reg),
150 SSMFIELD_ENTRY(X2APICPAGE, irr.u[4].u32Reg),
151 SSMFIELD_ENTRY(X2APICPAGE, irr.u[5].u32Reg),
152 SSMFIELD_ENTRY(X2APICPAGE, irr.u[6].u32Reg),
153 SSMFIELD_ENTRY(X2APICPAGE, irr.u[7].u32Reg),
154 SSMFIELD_ENTRY(X2APICPAGE, esr.all.u32Errors),
155 SSMFIELD_ENTRY(X2APICPAGE, icr_lo.all.u32IcrLo),
156 SSMFIELD_ENTRY(X2APICPAGE, icr_hi.u32IcrHi),
157 SSMFIELD_ENTRY(X2APICPAGE, lvt_timer.all.u32LvtTimer),
158 SSMFIELD_ENTRY(X2APICPAGE, lvt_thermal.all.u32LvtThermal),
159 SSMFIELD_ENTRY(X2APICPAGE, lvt_perf.all.u32LvtPerf),
160 SSMFIELD_ENTRY(X2APICPAGE, lvt_lint0.all.u32LvtLint0),
161 SSMFIELD_ENTRY(X2APICPAGE, lvt_lint1.all.u32LvtLint1),
162 SSMFIELD_ENTRY(X2APICPAGE, lvt_error.all.u32LvtError),
163 SSMFIELD_ENTRY(X2APICPAGE, timer_icr.u32InitialCount),
164 SSMFIELD_ENTRY(X2APICPAGE, timer_ccr.u32CurrentCount),
165 SSMFIELD_ENTRY(X2APICPAGE, timer_dcr.all.u32DivideValue),
166 SSMFIELD_ENTRY_TERM()
167};
168
169
170/**
171 * Initializes per-VCPU APIC to the state following an INIT reset
172 * ("Wait-for-SIPI" state).
173 *
174 * @param pVCpu The cross context virtual CPU structure.
175 */
176static void apicR3InitIpi(PVMCPU pVCpu)
177{
178 VMCPU_ASSERT_EMT_OR_NOT_RUNNING(pVCpu);
179 PXAPICPAGE pXApicPage = VMCPU_TO_XAPICPAGE(pVCpu);
180
181 /*
182 * See Intel spec. 10.4.7.3 "Local APIC State After an INIT Reset (Wait-for-SIPI State)"
183 * and AMD spec 16.3.2 "APIC Registers".
184 *
185 * The reason we don't simply zero out the entire APIC page and only set the non-zero members
186 * is because there are some registers that are not touched by the INIT IPI (e.g. version)
187 * operation and this function is only a subset of the reset operation.
188 */
189 RT_ZERO(pXApicPage->irr);
190 RT_ZERO(pXApicPage->irr);
191 RT_ZERO(pXApicPage->isr);
192 RT_ZERO(pXApicPage->tmr);
193 RT_ZERO(pXApicPage->icr_hi);
194 RT_ZERO(pXApicPage->icr_lo);
195 RT_ZERO(pXApicPage->ldr);
196 RT_ZERO(pXApicPage->tpr);
197 RT_ZERO(pXApicPage->ppr);
198 RT_ZERO(pXApicPage->timer_icr);
199 RT_ZERO(pXApicPage->timer_ccr);
200 RT_ZERO(pXApicPage->timer_dcr);
201
202 pXApicPage->dfr.u.u4Model = XAPICDESTFORMAT_FLAT;
203 pXApicPage->dfr.u.u28ReservedMb1 = UINT32_C(0xfffffff);
204
205 /** @todo CMCI. */
206
207 RT_ZERO(pXApicPage->lvt_timer);
208 pXApicPage->lvt_timer.u.u1Mask = 1;
209
210#if XAPIC_HARDWARE_VERSION == XAPIC_HARDWARE_VERSION_P4
211 RT_ZERO(pXApicPage->lvt_thermal);
212 pXApicPage->lvt_thermal.u.u1Mask = 1;
213#endif
214
215 RT_ZERO(pXApicPage->lvt_perf);
216 pXApicPage->lvt_perf.u.u1Mask = 1;
217
218 RT_ZERO(pXApicPage->lvt_lint0);
219 pXApicPage->lvt_lint0.u.u1Mask = 1;
220
221 RT_ZERO(pXApicPage->lvt_lint1);
222 pXApicPage->lvt_lint1.u.u1Mask = 1;
223
224 RT_ZERO(pXApicPage->lvt_error);
225 pXApicPage->lvt_error.u.u1Mask = 1;
226
227 RT_ZERO(pXApicPage->svr);
228 pXApicPage->svr.u.u8SpuriousVector = 0xff;
229
230 /* The self-IPI register is reset to 0. See Intel spec. 10.12.5.1 "x2APIC States" */
231 PX2APICPAGE pX2ApicPage = VMCPU_TO_X2APICPAGE(pVCpu);
232 RT_ZERO(pX2ApicPage->self_ipi);
233
234 /* Clear the pending-interrupt bitmaps. */
235 PAPICCPU pApicCpu = VMCPU_TO_APICCPU(pVCpu);
236 RT_BZERO(&pApicCpu->ApicPibLevel, sizeof(APICPIB));
237 RT_BZERO(pApicCpu->pvApicPibR3, sizeof(APICPIB));
238
239 /* Clear the interrupt line states for LINT0 and LINT1 pins. */
240 pApicCpu->fActiveLint0 = false;
241 pApicCpu->fActiveLint1 = false;
242}
243
244
245/**
246 * Resets the APIC base MSR.
247 *
248 * @param pVCpu The cross context virtual CPU structure.
249 */
250static void apicR3ResetBaseMsr(PVMCPU pVCpu)
251{
252 /*
253 * Initialize the APIC base MSR. The APIC enable-bit is set upon power-up or reset[1].
254 *
255 * A Reset (in xAPIC and x2APIC mode) brings up the local APIC in xAPIC mode.
256 * An INIT IPI does -not- cause a transition between xAPIC and x2APIC mode[2].
257 *
258 * [1] See AMD spec. 14.1.3 "Processor Initialization State"
259 * [2] See Intel spec. 10.12.5.1 "x2APIC States".
260 */
261 VMCPU_ASSERT_EMT_OR_NOT_RUNNING(pVCpu);
262
263 /* Construct. */
264 PAPICCPU pApicCpu = VMCPU_TO_APICCPU(pVCpu);
265 PAPIC pApic = VM_TO_APIC(pVCpu->CTX_SUFF(pVM));
266 uint64_t uApicBaseMsr = MSR_IA32_APICBASE_ADDR;
267 if (pVCpu->idCpu == 0)
268 uApicBaseMsr |= MSR_IA32_APICBASE_BSP;
269
270 /* If the VM was configured with no APIC, don't enable xAPIC mode, obviously. */
271 if (pApic->enmMaxMode != PDMAPICMODE_NONE)
272 {
273 uApicBaseMsr |= MSR_IA32_APICBASE_EN;
274
275 /*
276 * While coming out of a reset the APIC is enabled and in xAPIC mode. If software had previously
277 * disabled the APIC (which results in the CPUID bit being cleared as well) we re-enable it here.
278 * See Intel spec. 10.12.5.1 "x2APIC States".
279 */
280 if (CPUMSetGuestCpuIdPerCpuApicFeature(pVCpu, true /*fVisible*/) == false)
281 LogRel(("APIC%u: Resetting mode to xAPIC\n", pVCpu->idCpu));
282 }
283
284 /* Commit. */
285 ASMAtomicWriteU64(&pApicCpu->uApicBaseMsr, uApicBaseMsr);
286}
287
288
289/**
290 * Initializes per-VCPU APIC to the state following a power-up or hardware
291 * reset.
292 *
293 * @param pVCpu The cross context virtual CPU structure.
294 * @param fResetApicBaseMsr Whether to reset the APIC base MSR.
295 */
296VMMR3_INT_DECL(void) apicR3ResetCpu(PVMCPU pVCpu, bool fResetApicBaseMsr)
297{
298 VMCPU_ASSERT_EMT_OR_NOT_RUNNING(pVCpu);
299
300 LogFlow(("APIC%u: apicR3ResetCpu: fResetApicBaseMsr=%RTbool\n", pVCpu->idCpu, fResetApicBaseMsr));
301
302#ifdef VBOX_STRICT
303 /* Verify that the initial APIC ID reported via CPUID matches our VMCPU ID assumption. */
304 uint32_t uEax, uEbx, uEcx, uEdx;
305 uEax = uEbx = uEcx = uEdx = UINT32_MAX;
306 CPUMGetGuestCpuId(pVCpu, 1, 0, &uEax, &uEbx, &uEcx, &uEdx);
307 Assert(((uEbx >> 24) & 0xff) == pVCpu->idCpu);
308#endif
309
310 /*
311 * The state following a power-up or reset is a superset of the INIT state.
312 * See Intel spec. 10.4.7.3 "Local APIC State After an INIT Reset ('Wait-for-SIPI' State)"
313 */
314 apicR3InitIpi(pVCpu);
315
316 /*
317 * The APIC version register is read-only, so just initialize it here.
318 * It is not clear from the specs, where exactly it is initialized.
319 * The version determines the number of LVT entries and size of the APIC ID (8 bits for P4).
320 */
321 PXAPICPAGE pXApicPage = VMCPU_TO_XAPICPAGE(pVCpu);
322#if XAPIC_HARDWARE_VERSION == XAPIC_HARDWARE_VERSION_P4
323 pXApicPage->version.u.u8MaxLvtEntry = XAPIC_MAX_LVT_ENTRIES_P4 - 1;
324 pXApicPage->version.u.u8Version = XAPIC_HARDWARE_VERSION_P4;
325 AssertCompile(sizeof(pXApicPage->id.u8ApicId) >= XAPIC_APIC_ID_BIT_COUNT_P4 / 8);
326#else
327# error "Implement Pentium and P6 family APIC architectures"
328#endif
329
330 /** @todo It isn't clear in the spec. where exactly the default base address
331 * is (re)initialized, atm we do it here in Reset. */
332 if (fResetApicBaseMsr)
333 apicR3ResetBaseMsr(pVCpu);
334
335 /*
336 * Initialize the APIC ID register to xAPIC format.
337 */
338 ASMMemZero32(&pXApicPage->id, sizeof(pXApicPage->id));
339 pXApicPage->id.u8ApicId = pVCpu->idCpu;
340}
341
342
343/**
344 * Receives an INIT IPI.
345 *
346 * @param pVCpu The cross context virtual CPU structure.
347 */
348VMMR3_INT_DECL(void) APICR3InitIpi(PVMCPU pVCpu)
349{
350 VMCPU_ASSERT_EMT(pVCpu);
351 LogFlow(("APIC%u: APICR3InitIpi\n", pVCpu->idCpu));
352 apicR3InitIpi(pVCpu);
353}
354
355
356/**
357 * Helper for dumping an APIC 256-bit sparse register.
358 *
359 * @param pApicReg The APIC 256-bit spare register.
360 * @param pHlp The debug output helper.
361 */
362static void apicR3DbgInfo256BitReg(volatile const XAPIC256BITREG *pApicReg, PCDBGFINFOHLP pHlp)
363{
364 ssize_t const cFragments = RT_ELEMENTS(pApicReg->u);
365 unsigned const cBitsPerFragment = sizeof(pApicReg->u[0].u32Reg) * 8;
366 XAPIC256BITREG ApicReg;
367 RT_ZERO(ApicReg);
368
369 pHlp->pfnPrintf(pHlp, " ");
370 for (ssize_t i = cFragments - 1; i >= 0; i--)
371 {
372 uint32_t const uFragment = pApicReg->u[i].u32Reg;
373 ApicReg.u[i].u32Reg = uFragment;
374 pHlp->pfnPrintf(pHlp, "%08x", uFragment);
375 }
376 pHlp->pfnPrintf(pHlp, "\n");
377
378 uint32_t cPending = 0;
379 pHlp->pfnPrintf(pHlp, " Pending:");
380 for (ssize_t i = cFragments - 1; i >= 0; i--)
381 {
382 uint32_t uFragment = ApicReg.u[i].u32Reg;
383 if (uFragment)
384 {
385 do
386 {
387 unsigned idxSetBit = ASMBitLastSetU32(uFragment);
388 --idxSetBit;
389 ASMBitClear(&uFragment, idxSetBit);
390
391 idxSetBit += (i * cBitsPerFragment);
392 pHlp->pfnPrintf(pHlp, " %#02x", idxSetBit);
393 ++cPending;
394 } while (uFragment);
395 }
396 }
397 if (!cPending)
398 pHlp->pfnPrintf(pHlp, " None");
399 pHlp->pfnPrintf(pHlp, "\n");
400}
401
402
403/**
404 * Helper for dumping an APIC pending-interrupt bitmap.
405 *
406 * @param pApicPib The pending-interrupt bitmap.
407 * @param pHlp The debug output helper.
408 */
409static void apicR3DbgInfoPib(PCAPICPIB pApicPib, PCDBGFINFOHLP pHlp)
410{
411 /* Copy the pending-interrupt bitmap as an APIC 256-bit sparse register. */
412 XAPIC256BITREG ApicReg;
413 RT_ZERO(ApicReg);
414 ssize_t const cFragmentsDst = RT_ELEMENTS(ApicReg.u);
415 ssize_t const cFragmentsSrc = RT_ELEMENTS(pApicPib->aVectorBitmap);
416 AssertCompile(RT_ELEMENTS(ApicReg.u) == 2 * RT_ELEMENTS(pApicPib->aVectorBitmap));
417 for (ssize_t idxPib = cFragmentsSrc - 1, idxReg = cFragmentsDst - 1; idxPib >= 0; idxPib--, idxReg -= 2)
418 {
419 uint64_t const uFragment = pApicPib->aVectorBitmap[idxPib];
420 uint32_t const uFragmentLo = RT_LO_U32(uFragment);
421 uint32_t const uFragmentHi = RT_HI_U32(uFragment);
422 ApicReg.u[idxReg].u32Reg = uFragmentHi;
423 ApicReg.u[idxReg - 1].u32Reg = uFragmentLo;
424 }
425
426 /* Dump it. */
427 apicR3DbgInfo256BitReg(&ApicReg, pHlp);
428}
429
430
431/**
432 * Dumps basic APIC state.
433 *
434 * @param pVM The cross context VM structure.
435 * @param pHlp The info helpers.
436 * @param pszArgs Arguments, ignored.
437 */
438static DECLCALLBACK(void) apicR3Info(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs)
439{
440 NOREF(pszArgs);
441 PVMCPU pVCpu = VMMGetCpu(pVM);
442 if (!pVCpu)
443 pVCpu = &pVM->aCpus[0];
444
445 PCAPICCPU pApicCpu = VMCPU_TO_APICCPU(pVCpu);
446 PCXAPICPAGE pXApicPage = VMCPU_TO_CXAPICPAGE(pVCpu);
447 PCX2APICPAGE pX2ApicPage = VMCPU_TO_CX2APICPAGE(pVCpu);
448
449 uint64_t const uBaseMsr = pApicCpu->uApicBaseMsr;
450 APICMODE const enmMode = apicGetMode(uBaseMsr);
451 bool const fX2ApicMode = XAPIC_IN_X2APIC_MODE(pVCpu);
452
453 pHlp->pfnPrintf(pHlp, "APIC%u:\n", pVCpu->idCpu);
454 pHlp->pfnPrintf(pHlp, " APIC Base MSR = %#RX64 (Addr=%#RX64)\n", uBaseMsr,
455 MSR_IA32_APICBASE_GET_ADDR(uBaseMsr));
456 pHlp->pfnPrintf(pHlp, " Mode = %u (%s)\n", enmMode, apicGetModeName(enmMode));
457 if (fX2ApicMode)
458 {
459 pHlp->pfnPrintf(pHlp, " APIC ID = %u (%#x)\n", pX2ApicPage->id.u32ApicId,
460 pX2ApicPage->id.u32ApicId);
461 }
462 else
463 pHlp->pfnPrintf(pHlp, " APIC ID = %u (%#x)\n", pXApicPage->id.u8ApicId, pXApicPage->id.u8ApicId);
464 pHlp->pfnPrintf(pHlp, " Version = %#x\n", pXApicPage->version.all.u32Version);
465 pHlp->pfnPrintf(pHlp, " APIC Version = %#x\n", pXApicPage->version.u.u8Version);
466 pHlp->pfnPrintf(pHlp, " Max LVT entry index (0..N) = %u\n", pXApicPage->version.u.u8MaxLvtEntry);
467 pHlp->pfnPrintf(pHlp, " EOI Broadcast supression = %RTbool\n", pXApicPage->version.u.fEoiBroadcastSupression);
468 if (!fX2ApicMode)
469 pHlp->pfnPrintf(pHlp, " APR = %u (%#x)\n", pXApicPage->apr.u8Apr, pXApicPage->apr.u8Apr);
470 pHlp->pfnPrintf(pHlp, " TPR = %u (%#x)\n", pXApicPage->tpr.u8Tpr, pXApicPage->tpr.u8Tpr);
471 pHlp->pfnPrintf(pHlp, " Task-priority class = %#x\n", XAPIC_TPR_GET_TP(pXApicPage->tpr.u8Tpr) >> 4);
472 pHlp->pfnPrintf(pHlp, " Task-priority subclass = %#x\n", XAPIC_TPR_GET_TP_SUBCLASS(pXApicPage->tpr.u8Tpr));
473 pHlp->pfnPrintf(pHlp, " PPR = %u (%#x)\n", pXApicPage->ppr.u8Ppr, pXApicPage->ppr.u8Ppr);
474 pHlp->pfnPrintf(pHlp, " Processor-priority class = %#x\n", XAPIC_PPR_GET_PP(pXApicPage->ppr.u8Ppr) >> 4);
475 pHlp->pfnPrintf(pHlp, " Processor-priority subclass = %#x\n", XAPIC_PPR_GET_PP_SUBCLASS(pXApicPage->ppr.u8Ppr));
476 if (!fX2ApicMode)
477 pHlp->pfnPrintf(pHlp, " RRD = %u (%#x)\n", pXApicPage->rrd.u32Rrd, pXApicPage->rrd.u32Rrd);
478 pHlp->pfnPrintf(pHlp, " LDR = %#x\n", pXApicPage->ldr.all.u32Ldr);
479 pHlp->pfnPrintf(pHlp, " Logical APIC ID = %#x\n", fX2ApicMode ? pX2ApicPage->ldr.u32LogicalApicId
480 : pXApicPage->ldr.u.u8LogicalApicId);
481 if (!fX2ApicMode)
482 {
483 pHlp->pfnPrintf(pHlp, " DFR = %#x\n", pXApicPage->dfr.all.u32Dfr);
484 pHlp->pfnPrintf(pHlp, " Model = %#x (%s)\n", pXApicPage->dfr.u.u4Model,
485 apicGetDestFormatName((XAPICDESTFORMAT)pXApicPage->dfr.u.u4Model));
486 }
487 pHlp->pfnPrintf(pHlp, " SVR = %#x\n", pXApicPage->svr.all.u32Svr);
488 pHlp->pfnPrintf(pHlp, " Vector = %u (%#x)\n", pXApicPage->svr.u.u8SpuriousVector,
489 pXApicPage->svr.u.u8SpuriousVector);
490 pHlp->pfnPrintf(pHlp, " Software Enabled = %RTbool\n", RT_BOOL(pXApicPage->svr.u.fApicSoftwareEnable));
491 pHlp->pfnPrintf(pHlp, " Supress EOI broadcast = %RTbool\n", RT_BOOL(pXApicPage->svr.u.fSupressEoiBroadcast));
492 pHlp->pfnPrintf(pHlp, " ISR\n");
493 apicR3DbgInfo256BitReg(&pXApicPage->isr, pHlp);
494 pHlp->pfnPrintf(pHlp, " TMR\n");
495 apicR3DbgInfo256BitReg(&pXApicPage->tmr, pHlp);
496 pHlp->pfnPrintf(pHlp, " IRR\n");
497 apicR3DbgInfo256BitReg(&pXApicPage->irr, pHlp);
498 pHlp->pfnPrintf(pHlp, " PIB\n");
499 apicR3DbgInfoPib((PCAPICPIB)pApicCpu->pvApicPibR3, pHlp);
500 pHlp->pfnPrintf(pHlp, " Level PIB\n");
501 apicR3DbgInfoPib(&pApicCpu->ApicPibLevel, pHlp);
502 pHlp->pfnPrintf(pHlp, " ESR Internal = %#x\n", pApicCpu->uEsrInternal);
503 pHlp->pfnPrintf(pHlp, " ESR = %#x\n", pXApicPage->esr.all.u32Errors);
504 pHlp->pfnPrintf(pHlp, " Redirectable IPI = %RTbool\n", pXApicPage->esr.u.fRedirectableIpi);
505 pHlp->pfnPrintf(pHlp, " Send Illegal Vector = %RTbool\n", pXApicPage->esr.u.fSendIllegalVector);
506 pHlp->pfnPrintf(pHlp, " Recv Illegal Vector = %RTbool\n", pXApicPage->esr.u.fRcvdIllegalVector);
507 pHlp->pfnPrintf(pHlp, " Illegal Register Address = %RTbool\n", pXApicPage->esr.u.fIllegalRegAddr);
508 pHlp->pfnPrintf(pHlp, " ICR Low = %#x\n", pXApicPage->icr_lo.all.u32IcrLo);
509 pHlp->pfnPrintf(pHlp, " Vector = %u (%#x)\n", pXApicPage->icr_lo.u.u8Vector,
510 pXApicPage->icr_lo.u.u8Vector);
511 pHlp->pfnPrintf(pHlp, " Delivery Mode = %#x (%s)\n", pXApicPage->icr_lo.u.u3DeliveryMode,
512 apicGetDeliveryModeName((XAPICDELIVERYMODE)pXApicPage->icr_lo.u.u3DeliveryMode));
513 pHlp->pfnPrintf(pHlp, " Destination Mode = %#x (%s)\n", pXApicPage->icr_lo.u.u1DestMode,
514 apicGetDestModeName((XAPICDESTMODE)pXApicPage->icr_lo.u.u1DestMode));
515 if (!fX2ApicMode)
516 pHlp->pfnPrintf(pHlp, " Delivery Status = %u\n", pXApicPage->icr_lo.u.u1DeliveryStatus);
517 pHlp->pfnPrintf(pHlp, " Level = %u\n", pXApicPage->icr_lo.u.u1Level);
518 pHlp->pfnPrintf(pHlp, " Trigger Mode = %u (%s)\n", pXApicPage->icr_lo.u.u1TriggerMode,
519 apicGetTriggerModeName((XAPICTRIGGERMODE)pXApicPage->icr_lo.u.u1TriggerMode));
520 pHlp->pfnPrintf(pHlp, " Destination shorthand = %#x (%s)\n", pXApicPage->icr_lo.u.u2DestShorthand,
521 apicGetDestShorthandName((XAPICDESTSHORTHAND)pXApicPage->icr_lo.u.u2DestShorthand));
522 pHlp->pfnPrintf(pHlp, " ICR High = %#x\n", pXApicPage->icr_hi.all.u32IcrHi);
523 pHlp->pfnPrintf(pHlp, " Destination field/mask = %#x\n", fX2ApicMode ? pX2ApicPage->icr_hi.u32IcrHi
524 : pXApicPage->icr_hi.u.u8Dest);
525}
526
527
528/**
529 * Helper for dumping the LVT timer.
530 *
531 * @param pVCpu The cross context virtual CPU structure.
532 * @param pHlp The debug output helper.
533 */
534static void apicR3InfoLvtTimer(PVMCPU pVCpu, PCDBGFINFOHLP pHlp)
535{
536 PCXAPICPAGE pXApicPage = VMCPU_TO_CXAPICPAGE(pVCpu);
537 uint32_t const uLvtTimer = pXApicPage->lvt_timer.all.u32LvtTimer;
538 pHlp->pfnPrintf(pHlp, "LVT Timer = %#RX32\n", uLvtTimer);
539 pHlp->pfnPrintf(pHlp, " Vector = %u (%#x)\n", pXApicPage->lvt_timer.u.u8Vector, pXApicPage->lvt_timer.u.u8Vector);
540 pHlp->pfnPrintf(pHlp, " Delivery status = %u\n", pXApicPage->lvt_timer.u.u1DeliveryStatus);
541 pHlp->pfnPrintf(pHlp, " Masked = %RTbool\n", XAPIC_LVT_IS_MASKED(uLvtTimer));
542 pHlp->pfnPrintf(pHlp, " Timer Mode = %#x (%s)\n", pXApicPage->lvt_timer.u.u2TimerMode,
543 apicGetTimerModeName((XAPICTIMERMODE)pXApicPage->lvt_timer.u.u2TimerMode));
544}
545
546
547/**
548 * Dumps APIC Local Vector Table (LVT) information.
549 *
550 * @param pVM The cross context VM structure.
551 * @param pHlp The info helpers.
552 * @param pszArgs Arguments, ignored.
553 */
554static DECLCALLBACK(void) apicR3InfoLvt(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs)
555{
556 NOREF(pszArgs);
557 PVMCPU pVCpu = VMMGetCpu(pVM);
558 if (!pVCpu)
559 pVCpu = &pVM->aCpus[0];
560
561 PCXAPICPAGE pXApicPage = VMCPU_TO_CXAPICPAGE(pVCpu);
562
563 /*
564 * Delivery modes available in the LVT entries. They're different (more reserved stuff) from the
565 * ICR delivery modes and hence we don't use apicGetDeliveryMode but mostly because we want small,
566 * fixed-length strings to fit our formatting needs here.
567 */
568 static const char * const s_apszLvtDeliveryModes[] =
569 {
570 "Fixed ",
571 "Rsvd ",
572 "SMI ",
573 "Rsvd ",
574 "NMI ",
575 "INIT ",
576 "Rsvd ",
577 "ExtINT"
578 };
579 /* Delivery Status. */
580 static const char * const s_apszLvtDeliveryStatus[] =
581 {
582 "Idle",
583 "Pend"
584 };
585 const char *pszNotApplicable = "";
586
587 pHlp->pfnPrintf(pHlp, "VCPU[%u] APIC Local Vector Table (LVT):\n", pVCpu->idCpu);
588 pHlp->pfnPrintf(pHlp, "lvt timermode mask trigger rirr polarity dlvr_st dlvr_mode vector\n");
589 /* Timer. */
590 {
591 /* Timer modes. */
592 static const char * const s_apszLvtTimerModes[] =
593 {
594 "One-shot ",
595 "Periodic ",
596 "TSC-dline"
597 };
598 const uint32_t uLvtTimer = pXApicPage->lvt_timer.all.u32LvtTimer;
599 const XAPICTIMERMODE enmTimerMode = XAPIC_LVT_GET_TIMER_MODE(uLvtTimer);
600 const char *pszTimerMode = s_apszLvtTimerModes[enmTimerMode];
601 const uint8_t uMask = XAPIC_LVT_IS_MASKED(uLvtTimer);
602 const uint8_t uDeliveryStatus = uLvtTimer & XAPIC_LVT_DELIVERY_STATUS;
603 const char *pszDeliveryStatus = s_apszLvtDeliveryStatus[uDeliveryStatus];
604 const uint8_t uVector = XAPIC_LVT_GET_VECTOR(uLvtTimer);
605
606 pHlp->pfnPrintf(pHlp, "%-7s %9s %u %5s %1s %8s %4s %6s %3u (%#x)\n",
607 "Timer",
608 pszTimerMode,
609 uMask,
610 pszNotApplicable, /* TriggerMode */
611 pszNotApplicable, /* Remote IRR */
612 pszNotApplicable, /* Polarity */
613 pszDeliveryStatus,
614 pszNotApplicable, /* Delivery Mode */
615 uVector,
616 uVector);
617 }
618
619#if XAPIC_HARDWARE_VERSION == XAPIC_HARDWARE_VERSION_P4
620 /* Thermal sensor. */
621 {
622 uint32_t const uLvtThermal = pXApicPage->lvt_thermal.all.u32LvtThermal;
623 const uint8_t uMask = XAPIC_LVT_IS_MASKED(uLvtThermal);
624 const uint8_t uDeliveryStatus = uLvtThermal & XAPIC_LVT_DELIVERY_STATUS;
625 const char *pszDeliveryStatus = s_apszLvtDeliveryStatus[uDeliveryStatus];
626 const XAPICDELIVERYMODE enmDeliveryMode = XAPIC_LVT_GET_DELIVERY_MODE(uLvtThermal);
627 const char *pszDeliveryMode = s_apszLvtDeliveryModes[enmDeliveryMode];
628 const uint8_t uVector = XAPIC_LVT_GET_VECTOR(uLvtThermal);
629
630 pHlp->pfnPrintf(pHlp, "%-7s %9s %u %5s %1s %8s %4s %6s %3u (%#x)\n",
631 "Thermal",
632 pszNotApplicable, /* Timer mode */
633 uMask,
634 pszNotApplicable, /* TriggerMode */
635 pszNotApplicable, /* Remote IRR */
636 pszNotApplicable, /* Polarity */
637 pszDeliveryStatus,
638 pszDeliveryMode,
639 uVector,
640 uVector);
641 }
642#endif
643
644 /* Performance Monitor Counters. */
645 {
646 uint32_t const uLvtPerf = pXApicPage->lvt_thermal.all.u32LvtThermal;
647 const uint8_t uMask = XAPIC_LVT_IS_MASKED(uLvtPerf);
648 const uint8_t uDeliveryStatus = uLvtPerf & XAPIC_LVT_DELIVERY_STATUS;
649 const char *pszDeliveryStatus = s_apszLvtDeliveryStatus[uDeliveryStatus];
650 const XAPICDELIVERYMODE enmDeliveryMode = XAPIC_LVT_GET_DELIVERY_MODE(uLvtPerf);
651 const char *pszDeliveryMode = s_apszLvtDeliveryModes[enmDeliveryMode];
652 const uint8_t uVector = XAPIC_LVT_GET_VECTOR(uLvtPerf);
653
654 pHlp->pfnPrintf(pHlp, "%-7s %9s %u %5s %1s %8s %4s %6s %3u (%#x)\n",
655 "Perf",
656 pszNotApplicable, /* Timer mode */
657 uMask,
658 pszNotApplicable, /* TriggerMode */
659 pszNotApplicable, /* Remote IRR */
660 pszNotApplicable, /* Polarity */
661 pszDeliveryStatus,
662 pszDeliveryMode,
663 uVector,
664 uVector);
665 }
666
667 /* LINT0, LINT1. */
668 {
669 /* LINTx name. */
670 static const char * const s_apszLvtLint[] =
671 {
672 "LINT0",
673 "LINT1"
674 };
675 /* Trigger mode. */
676 static const char * const s_apszLvtTriggerModes[] =
677 {
678 "Edge ",
679 "Level"
680 };
681 /* Polarity. */
682 static const char * const s_apszLvtPolarity[] =
683 {
684 "ActiveHi",
685 "ActiveLo"
686 };
687
688 uint32_t aLvtLint[2];
689 aLvtLint[0] = pXApicPage->lvt_lint0.all.u32LvtLint0;
690 aLvtLint[1] = pXApicPage->lvt_lint1.all.u32LvtLint1;
691 for (size_t i = 0; i < RT_ELEMENTS(aLvtLint); i++)
692 {
693 uint32_t const uLvtLint = aLvtLint[i];
694 const char *pszLint = s_apszLvtLint[i];
695 const uint8_t uMask = XAPIC_LVT_IS_MASKED(uLvtLint);
696 const XAPICTRIGGERMODE enmTriggerMode = XAPIC_LVT_GET_TRIGGER_MODE(uLvtLint);
697 const char *pszTriggerMode = s_apszLvtTriggerModes[enmTriggerMode];
698 const uint8_t uRemoteIrr = XAPIC_LVT_GET_REMOTE_IRR(uLvtLint);
699 const uint8_t uPolarity = XAPIC_LVT_GET_POLARITY(uLvtLint);
700 const char *pszPolarity = s_apszLvtPolarity[uPolarity];
701 const uint8_t uDeliveryStatus = uLvtLint & XAPIC_LVT_DELIVERY_STATUS;
702 const char *pszDeliveryStatus = s_apszLvtDeliveryStatus[uDeliveryStatus];
703 const XAPICDELIVERYMODE enmDeliveryMode = XAPIC_LVT_GET_DELIVERY_MODE(uLvtLint);
704 const char *pszDeliveryMode = s_apszLvtDeliveryModes[enmDeliveryMode];
705 const uint8_t uVector = XAPIC_LVT_GET_VECTOR(uLvtLint);
706
707 pHlp->pfnPrintf(pHlp, "%-7s %9s %u %5s %u %8s %4s %6s %3u (%#x)\n",
708 pszLint,
709 pszNotApplicable, /* Timer mode */
710 uMask,
711 pszTriggerMode,
712 uRemoteIrr,
713 pszPolarity,
714 pszDeliveryStatus,
715 pszDeliveryMode,
716 uVector,
717 uVector);
718 }
719 }
720
721 /* Error. */
722 {
723 uint32_t const uLvtError = pXApicPage->lvt_thermal.all.u32LvtThermal;
724 const uint8_t uMask = XAPIC_LVT_IS_MASKED(uLvtError);
725 const uint8_t uDeliveryStatus = uLvtError & XAPIC_LVT_DELIVERY_STATUS;
726 const char *pszDeliveryStatus = s_apszLvtDeliveryStatus[uDeliveryStatus];
727 const XAPICDELIVERYMODE enmDeliveryMode = XAPIC_LVT_GET_DELIVERY_MODE(uLvtError);
728 const char *pszDeliveryMode = s_apszLvtDeliveryModes[enmDeliveryMode];
729 const uint8_t uVector = XAPIC_LVT_GET_VECTOR(uLvtError);
730
731 pHlp->pfnPrintf(pHlp, "%-7s %9s %u %5s %1s %8s %4s %6s %3u (%#x)\n",
732 "Error",
733 pszNotApplicable, /* Timer mode */
734 uMask,
735 pszNotApplicable, /* TriggerMode */
736 pszNotApplicable, /* Remote IRR */
737 pszNotApplicable, /* Polarity */
738 pszDeliveryStatus,
739 pszDeliveryMode,
740 uVector,
741 uVector);
742 }
743}
744
745
746/**
747 * Dumps the APIC timer information.
748 *
749 * @param pVM The cross context VM structure.
750 * @param pHlp The info helpers.
751 * @param pszArgs Arguments, ignored.
752 */
753static DECLCALLBACK(void) apicR3InfoTimer(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs)
754{
755 NOREF(pszArgs);
756 PVMCPU pVCpu = VMMGetCpu(pVM);
757 if (!pVCpu)
758 pVCpu = &pVM->aCpus[0];
759
760 PCXAPICPAGE pXApicPage = VMCPU_TO_CXAPICPAGE(pVCpu);
761 PCAPICCPU pApicCpu = VMCPU_TO_APICCPU(pVCpu);
762
763 pHlp->pfnPrintf(pHlp, "VCPU[%u] Local APIC timer:\n", pVCpu->idCpu);
764 pHlp->pfnPrintf(pHlp, " ICR = %#RX32\n", pXApicPage->timer_icr.u32InitialCount);
765 pHlp->pfnPrintf(pHlp, " CCR = %#RX32\n", pXApicPage->timer_ccr.u32CurrentCount);
766 pHlp->pfnPrintf(pHlp, " DCR = %#RX32\n", pXApicPage->timer_dcr.all.u32DivideValue);
767 pHlp->pfnPrintf(pHlp, " Timer shift = %#x\n", apicGetTimerShift(pXApicPage));
768 pHlp->pfnPrintf(pHlp, " Timer initial TS = %#RU64\n", pApicCpu->u64TimerInitial);
769 apicR3InfoLvtTimer(pVCpu, pHlp);
770}
771
772
773#ifdef APIC_FUZZY_SSM_COMPAT_TEST
774
775/**
776 * Reads a 32-bit register at a specified offset.
777 *
778 * @returns The value at the specified offset.
779 * @param pXApicPage The xAPIC page.
780 * @param offReg The offset of the register being read.
781 *
782 * @remarks Duplicate of apicReadRaw32()!
783 */
784static uint32_t apicR3ReadRawR32(PCXAPICPAGE pXApicPage, uint16_t offReg)
785{
786 Assert(offReg < sizeof(*pXApicPage) - sizeof(uint32_t));
787 uint8_t const *pbXApic = (const uint8_t *)pXApicPage;
788 uint32_t const uValue = *(const uint32_t *)(pbXApic + offReg);
789 return uValue;
790}
791
792
793/**
794 * Helper for dumping per-VCPU APIC state to the release logger.
795 *
796 * This is primarily concerned about the APIC state relevant for saved-states.
797 *
798 * @param pVCpu The cross context virtual CPU structure.
799 * @param pszPrefix A caller supplied prefix before dumping the state.
800 * @param uVersion Data layout version.
801 */
802static void apicR3DumpState(PVMCPU pVCpu, const char *pszPrefix, uint32_t uVersion)
803{
804 PCAPICCPU pApicCpu = VMCPU_TO_APICCPU(pVCpu);
805
806 LogRel(("APIC%u: %s (version %u):\n", pVCpu->idCpu, pszPrefix, uVersion));
807
808 switch (uVersion)
809 {
810 case APIC_SAVED_STATE_VERSION:
811 case APIC_SAVED_STATE_VERSION_VBOX_51_BETA2:
812 {
813 /* The auxiliary state. */
814 LogRel(("APIC%u: uApicBaseMsr = %#RX64\n", pVCpu->idCpu, pApicCpu->uApicBaseMsr));
815 LogRel(("APIC%u: uEsrInternal = %#RX64\n", pVCpu->idCpu, pApicCpu->uEsrInternal));
816
817 /* The timer. */
818 LogRel(("APIC%u: u64TimerInitial = %#RU64\n", pVCpu->idCpu, pApicCpu->u64TimerInitial));
819 LogRel(("APIC%u: uHintedTimerInitialCount = %#RU64\n", pVCpu->idCpu, pApicCpu->uHintedTimerInitialCount));
820 LogRel(("APIC%u: uHintedTimerShift = %#RU64\n", pVCpu->idCpu, pApicCpu->uHintedTimerShift));
821
822 PCXAPICPAGE pXApicPage = VMCPU_TO_CXAPICPAGE(pVCpu);
823 LogRel(("APIC%u: uTimerICR = %#RX32\n", pVCpu->idCpu, pXApicPage->timer_icr.u32InitialCount));
824 LogRel(("APIC%u: uTimerCCR = %#RX32\n", pVCpu->idCpu, pXApicPage->timer_ccr.u32CurrentCount));
825
826 /* The PIBs. */
827 LogRel(("APIC%u: Edge PIB : %.*Rhxs\n", pVCpu->idCpu, sizeof(APICPIB), pApicCpu->pvApicPibR3));
828 LogRel(("APIC%u: Level PIB: %.*Rhxs\n", pVCpu->idCpu, sizeof(APICPIB), &pApicCpu->ApicPibLevel));
829
830 /* The LINT0, LINT1 interrupt line active states. */
831 LogRel(("APIC%u: fActiveLint0 = %RTbool\n", pVCpu->idCpu, pApicCpu->fActiveLint0));
832 LogRel(("APIC%u: fActiveLint1 = %RTbool\n", pVCpu->idCpu, pApicCpu->fActiveLint1));
833
834 /* The APIC page. */
835 LogRel(("APIC%u: APIC page: %.*Rhxs\n", pVCpu->idCpu, sizeof(XAPICPAGE), pApicCpu->pvApicPageR3));
836 break;
837 }
838
839 case APIC_SAVED_STATE_VERSION_VBOX_50:
840 case APIC_SAVED_STATE_VERSION_VBOX_30:
841 case APIC_SAVED_STATE_VERSION_ANCIENT:
842 {
843 PCXAPICPAGE pXApicPage = VMCPU_TO_CXAPICPAGE(pVCpu);
844 LogRel(("APIC%u: uApicBaseMsr = %#RX32\n", pVCpu->idCpu, RT_LO_U32(pApicCpu->uApicBaseMsr)));
845 LogRel(("APIC%u: uId = %#RX32\n", pVCpu->idCpu, pXApicPage->id.u8ApicId));
846 LogRel(("APIC%u: uPhysId = N/A\n", pVCpu->idCpu));
847 LogRel(("APIC%u: uArbId = N/A\n", pVCpu->idCpu));
848 LogRel(("APIC%u: uTpr = %#RX32\n", pVCpu->idCpu, pXApicPage->tpr.u8Tpr));
849 LogRel(("APIC%u: uSvr = %#RX32\n", pVCpu->idCpu, pXApicPage->svr.all.u32Svr));
850 LogRel(("APIC%u: uLdr = %#x\n", pVCpu->idCpu, pXApicPage->ldr.all.u32Ldr));
851 LogRel(("APIC%u: uDfr = %#x\n", pVCpu->idCpu, pXApicPage->dfr.all.u32Dfr));
852
853 for (size_t i = 0; i < 8; i++)
854 {
855 LogRel(("APIC%u: Isr[%u].u32Reg = %#RX32\n", pVCpu->idCpu, i, pXApicPage->isr.u[i].u32Reg));
856 LogRel(("APIC%u: Tmr[%u].u32Reg = %#RX32\n", pVCpu->idCpu, i, pXApicPage->tmr.u[i].u32Reg));
857 LogRel(("APIC%u: Irr[%u].u32Reg = %#RX32\n", pVCpu->idCpu, i, pXApicPage->irr.u[i].u32Reg));
858 }
859
860 for (size_t i = 0; i < XAPIC_MAX_LVT_ENTRIES_P4; i++)
861 {
862 uint16_t const offReg = XAPIC_OFF_LVT_START + (i << 4);
863 LogRel(("APIC%u: Lvt[%u].u32Reg = %#RX32\n", pVCpu->idCpu, i, apicR3ReadRawR32(pXApicPage, offReg)));
864 }
865
866 LogRel(("APIC%u: uEsr = %#RX32\n", pVCpu->idCpu, pXApicPage->esr.all.u32Errors));
867 LogRel(("APIC%u: uIcr_Lo = %#RX32\n", pVCpu->idCpu, pXApicPage->icr_lo.all.u32IcrLo));
868 LogRel(("APIC%u: uIcr_Hi = %#RX32\n", pVCpu->idCpu, pXApicPage->icr_hi.all.u32IcrHi));
869 LogRel(("APIC%u: uTimerDcr = %#RX32\n", pVCpu->idCpu, pXApicPage->timer_dcr.all.u32DivideValue));
870 LogRel(("APIC%u: uCountShift = %#RX32\n", pVCpu->idCpu, apicGetTimerShift(pXApicPage)));
871 LogRel(("APIC%u: uInitialCount = %#RX32\n", pVCpu->idCpu, pXApicPage->timer_icr.u32InitialCount));
872 LogRel(("APIC%u: u64InitialCountLoadTime = %#RX64\n", pVCpu->idCpu, pApicCpu->u64TimerInitial));
873 LogRel(("APIC%u: u64NextTime / TimerCCR = %#RX64\n", pVCpu->idCpu, pXApicPage->timer_ccr.u32CurrentCount));
874 break;
875 }
876
877 default:
878 {
879 LogRel(("APIC: apicR3DumpState: Invalid/unrecognized saved-state version %u (%#x)\n", uVersion, uVersion));
880 break;
881 }
882 }
883}
884
885#endif /* APIC_FUZZY_SSM_COMPAT_TEST */
886
887/**
888 * Worker for saving per-VM APIC data.
889 *
890 * @returns VBox status code.
891 * @param pVM The cross context VM structure.
892 * @param pSSM The SSM handle.
893 */
894static int apicR3SaveVMData(PVM pVM, PSSMHANDLE pSSM)
895{
896 PAPIC pApic = VM_TO_APIC(pVM);
897 SSMR3PutU32(pSSM, pVM->cCpus);
898 SSMR3PutBool(pSSM, pApic->fIoApicPresent);
899 return SSMR3PutU32(pSSM, pApic->enmMaxMode);
900}
901
902
903/**
904 * Worker for loading per-VM APIC data.
905 *
906 * @returns VBox status code.
907 * @param pVM The cross context VM structure.
908 * @param pSSM The SSM handle.
909 */
910static int apicR3LoadVMData(PVM pVM, PSSMHANDLE pSSM)
911{
912 PAPIC pApic = VM_TO_APIC(pVM);
913
914 /* Load and verify number of CPUs. */
915 uint32_t cCpus;
916 int rc = SSMR3GetU32(pSSM, &cCpus);
917 AssertRCReturn(rc, rc);
918 if (cCpus != pVM->cCpus)
919 return SSMR3SetCfgError(pSSM, RT_SRC_POS, N_("Config mismatch - cCpus: saved=%u config=%u"), cCpus, pVM->cCpus);
920
921 /* Load and verify I/O APIC presence. */
922 bool fIoApicPresent;
923 rc = SSMR3GetBool(pSSM, &fIoApicPresent);
924 AssertRCReturn(rc, rc);
925 if (fIoApicPresent != pApic->fIoApicPresent)
926 return SSMR3SetCfgError(pSSM, RT_SRC_POS, N_("Config mismatch - fIoApicPresent: saved=%RTbool config=%RTbool"),
927 fIoApicPresent, pApic->fIoApicPresent);
928
929 /* Load and verify configured max APIC mode. */
930 uint32_t uSavedMaxApicMode;
931 rc = SSMR3GetU32(pSSM, &uSavedMaxApicMode);
932 AssertRCReturn(rc, rc);
933 if (uSavedMaxApicMode != (uint32_t)pApic->enmMaxMode)
934 return SSMR3SetCfgError(pSSM, RT_SRC_POS, N_("Config mismatch - uApicMode: saved=%u config=%u"),
935 uSavedMaxApicMode, pApic->enmMaxMode);
936 return VINF_SUCCESS;
937}
938
939
940/**
941 * Worker for loading per-VCPU APIC data for legacy (old) saved-states.
942 *
943 * @returns VBox status code.
944 * @param pVCpu The cross context virtual CPU structure.
945 * @param pSSM The SSM handle.
946 * @param uVersion Data layout version.
947 */
948static int apicR3LoadLegacyVCpuData(PVMCPU pVCpu, PSSMHANDLE pSSM, uint32_t uVersion)
949{
950 AssertReturn(uVersion <= APIC_SAVED_STATE_VERSION_VBOX_50, VERR_NOT_SUPPORTED);
951
952 PAPICCPU pApicCpu = VMCPU_TO_APICCPU(pVCpu);
953 PXAPICPAGE pXApicPage = VMCPU_TO_XAPICPAGE(pVCpu);
954
955 uint32_t uApicBaseLo;
956 int rc = SSMR3GetU32(pSSM, &uApicBaseLo);
957 AssertRCReturn(rc, rc);
958 pApicCpu->uApicBaseMsr = uApicBaseLo;
959 Log2(("APIC%u: apicR3LoadLegacyVCpuData: uApicBaseMsr=%#RX64\n", pVCpu->idCpu, pApicCpu->uApicBaseMsr));
960
961 switch (uVersion)
962 {
963 case APIC_SAVED_STATE_VERSION_VBOX_50:
964 case APIC_SAVED_STATE_VERSION_VBOX_30:
965 {
966 uint32_t uApicId, uPhysApicId, uArbId;
967 SSMR3GetU32(pSSM, &uApicId); pXApicPage->id.u8ApicId = uApicId;
968 SSMR3GetU32(pSSM, &uPhysApicId); NOREF(uPhysApicId); /* PhysId == pVCpu->idCpu */
969 SSMR3GetU32(pSSM, &uArbId); NOREF(uArbId); /* ArbID is & was unused. */
970 break;
971 }
972
973 case APIC_SAVED_STATE_VERSION_ANCIENT:
974 {
975 uint8_t uPhysApicId;
976 SSMR3GetU8(pSSM, &pXApicPage->id.u8ApicId);
977 SSMR3GetU8(pSSM, &uPhysApicId); NOREF(uPhysApicId); /* PhysId == pVCpu->idCpu */
978 break;
979 }
980
981 default:
982 return VERR_SSM_UNSUPPORTED_DATA_UNIT_VERSION;
983 }
984
985 uint32_t u32Tpr;
986 SSMR3GetU32(pSSM, &u32Tpr);
987 pXApicPage->tpr.u8Tpr = u32Tpr & XAPIC_TPR_VALID;
988
989 SSMR3GetU32(pSSM, &pXApicPage->svr.all.u32Svr);
990 SSMR3GetU8(pSSM, &pXApicPage->ldr.u.u8LogicalApicId);
991
992 uint8_t uDfr;
993 SSMR3GetU8(pSSM, &uDfr);
994 pXApicPage->dfr.u.u4Model = uDfr >> 4;
995
996 AssertCompile(RT_ELEMENTS(pXApicPage->isr.u) == 8);
997 AssertCompile(RT_ELEMENTS(pXApicPage->tmr.u) == 8);
998 AssertCompile(RT_ELEMENTS(pXApicPage->irr.u) == 8);
999 for (size_t i = 0; i < 8; i++)
1000 {
1001 SSMR3GetU32(pSSM, &pXApicPage->isr.u[i].u32Reg);
1002 SSMR3GetU32(pSSM, &pXApicPage->tmr.u[i].u32Reg);
1003 SSMR3GetU32(pSSM, &pXApicPage->irr.u[i].u32Reg);
1004 }
1005
1006 SSMR3GetU32(pSSM, &pXApicPage->lvt_timer.all.u32LvtTimer);
1007 SSMR3GetU32(pSSM, &pXApicPage->lvt_thermal.all.u32LvtThermal);
1008 SSMR3GetU32(pSSM, &pXApicPage->lvt_perf.all.u32LvtPerf);
1009 SSMR3GetU32(pSSM, &pXApicPage->lvt_lint0.all.u32LvtLint0);
1010 SSMR3GetU32(pSSM, &pXApicPage->lvt_lint1.all.u32LvtLint1);
1011 SSMR3GetU32(pSSM, &pXApicPage->lvt_error.all.u32LvtError);
1012
1013 SSMR3GetU32(pSSM, &pXApicPage->esr.all.u32Errors);
1014 SSMR3GetU32(pSSM, &pXApicPage->icr_lo.all.u32IcrLo);
1015 SSMR3GetU32(pSSM, &pXApicPage->icr_hi.all.u32IcrHi);
1016
1017 uint32_t u32TimerShift;
1018 SSMR3GetU32(pSSM, &pXApicPage->timer_dcr.all.u32DivideValue);
1019 SSMR3GetU32(pSSM, &u32TimerShift);
1020 /*
1021 * Old implementation may have left the timer shift uninitialized until
1022 * the timer configuration register was written. Unfortunately zero is
1023 * also a valid timer shift value, so we're just going to ignore it
1024 * completely. The shift count can always be derived from the DCR.
1025 * See @bugref{8245#c98}.
1026 */
1027 uint8_t const uTimerShift = apicGetTimerShift(pXApicPage);
1028
1029 SSMR3GetU32(pSSM, &pXApicPage->timer_icr.u32InitialCount);
1030 SSMR3GetU64(pSSM, &pApicCpu->u64TimerInitial);
1031 uint64_t uNextTS;
1032 rc = SSMR3GetU64(pSSM, &uNextTS); AssertRCReturn(rc, rc);
1033 if (uNextTS >= pApicCpu->u64TimerInitial + ((pXApicPage->timer_icr.u32InitialCount + 1) << uTimerShift))
1034 pXApicPage->timer_ccr.u32CurrentCount = pXApicPage->timer_icr.u32InitialCount;
1035
1036 rc = TMR3TimerLoad(pApicCpu->pTimerR3, pSSM);
1037 AssertRCReturn(rc, rc);
1038 Assert(pApicCpu->uHintedTimerInitialCount == 0);
1039 Assert(pApicCpu->uHintedTimerShift == 0);
1040 if (TMTimerIsActive(pApicCpu->pTimerR3))
1041 {
1042 uint32_t const uInitialCount = pXApicPage->timer_icr.u32InitialCount;
1043 apicHintTimerFreq(pApicCpu, uInitialCount, uTimerShift);
1044 }
1045
1046 return rc;
1047}
1048
1049#if 0 /** @todo not referenced and will cause assertion in apicR3LoadExec (VERR_WRONG_ORDER). */
1050/**
1051 * @copydoc FNSSMDEVLIVEEXEC
1052 */
1053static DECLCALLBACK(int) apicR3LiveExec(PPDMDEVINS pDevIns, PSSMHANDLE pSSM, uint32_t uPass)
1054{
1055 PAPICDEV pApicDev = PDMINS_2_DATA(pDevIns, PAPICDEV);
1056 PVM pVM = PDMDevHlpGetVM(pApicDev->pDevInsR3);
1057 RT_NOREF1(uPass);
1058
1059 LogFlow(("APIC: apicR3LiveExec: uPass=%u\n", uPass));
1060
1061 int rc = apicR3SaveVMData(pVM, pSSM);
1062 AssertRCReturn(rc, rc);
1063 return VINF_SSM_DONT_CALL_AGAIN;
1064}
1065#endif
1066
1067/**
1068 * @copydoc FNSSMDEVSAVEEXEC
1069 */
1070static DECLCALLBACK(int) apicR3SaveExec(PPDMDEVINS pDevIns, PSSMHANDLE pSSM)
1071{
1072 PVM pVM = PDMDevHlpGetVM(pDevIns);
1073 AssertReturn(pVM, VERR_INVALID_VM_HANDLE);
1074
1075 LogFlow(("APIC: apicR3SaveExec\n"));
1076
1077 /* Save per-VM data. */
1078 int rc = apicR3SaveVMData(pVM, pSSM);
1079 AssertRCReturn(rc, rc);
1080
1081 /* Save per-VCPU data.*/
1082 for (VMCPUID idCpu = 0; idCpu < pVM->cCpus; idCpu++)
1083 {
1084 PVMCPU pVCpu = &pVM->aCpus[idCpu];
1085 PCAPICCPU pApicCpu = VMCPU_TO_APICCPU(pVCpu);
1086
1087 /* Update interrupts from the pending-interrupts bitmaps to the IRR. */
1088 APICUpdatePendingInterrupts(pVCpu);
1089
1090 /* Save the auxiliary data. */
1091 SSMR3PutU64(pSSM, pApicCpu->uApicBaseMsr);
1092 SSMR3PutU32(pSSM, pApicCpu->uEsrInternal);
1093
1094 /* Save the APIC page. */
1095 if (XAPIC_IN_X2APIC_MODE(pVCpu))
1096 SSMR3PutStruct(pSSM, (const void *)pApicCpu->pvApicPageR3, &g_aX2ApicPageFields[0]);
1097 else
1098 SSMR3PutStruct(pSSM, (const void *)pApicCpu->pvApicPageR3, &g_aXApicPageFields[0]);
1099
1100 /* Save the timer. */
1101 SSMR3PutU64(pSSM, pApicCpu->u64TimerInitial);
1102 TMR3TimerSave(pApicCpu->pTimerR3, pSSM);
1103
1104 /* Save the LINT0, LINT1 interrupt line states. */
1105 SSMR3PutBool(pSSM, pApicCpu->fActiveLint0);
1106 SSMR3PutBool(pSSM, pApicCpu->fActiveLint1);
1107
1108#if defined(APIC_FUZZY_SSM_COMPAT_TEST) || defined(DEBUG_ramshankar)
1109 apicR3DumpState(pVCpu, "Saved state", APIC_SAVED_STATE_VERSION);
1110#endif
1111 }
1112
1113#ifdef APIC_FUZZY_SSM_COMPAT_TEST
1114 /* The state is fuzzy, don't even bother trying to load the guest. */
1115 return VERR_INVALID_STATE;
1116#else
1117 return rc;
1118#endif
1119}
1120
1121
1122/**
1123 * @copydoc FNSSMDEVLOADEXEC
1124 */
1125static DECLCALLBACK(int) apicR3LoadExec(PPDMDEVINS pDevIns, PSSMHANDLE pSSM, uint32_t uVersion, uint32_t uPass)
1126{
1127 PVM pVM = PDMDevHlpGetVM(pDevIns);
1128
1129 AssertReturn(pVM, VERR_INVALID_VM_HANDLE);
1130 AssertReturn(uPass == SSM_PASS_FINAL, VERR_WRONG_ORDER);
1131
1132 LogFlow(("APIC: apicR3LoadExec: uVersion=%u uPass=%#x\n", uVersion, uPass));
1133
1134 /* Weed out invalid versions. */
1135 if ( uVersion != APIC_SAVED_STATE_VERSION
1136 && uVersion != APIC_SAVED_STATE_VERSION_VBOX_51_BETA2
1137 && uVersion != APIC_SAVED_STATE_VERSION_VBOX_50
1138 && uVersion != APIC_SAVED_STATE_VERSION_VBOX_30
1139 && uVersion != APIC_SAVED_STATE_VERSION_ANCIENT)
1140 {
1141 LogRel(("APIC: apicR3LoadExec: Invalid/unrecognized saved-state version %u (%#x)\n", uVersion, uVersion));
1142 return VERR_SSM_UNSUPPORTED_DATA_UNIT_VERSION;
1143 }
1144
1145 int rc = VINF_SUCCESS;
1146 if (uVersion > APIC_SAVED_STATE_VERSION_VBOX_30)
1147 {
1148 rc = apicR3LoadVMData(pVM, pSSM);
1149 AssertRCReturn(rc, rc);
1150
1151 if (uVersion == APIC_SAVED_STATE_VERSION)
1152 { /* Load any new additional per-VM data. */ }
1153 }
1154
1155 for (VMCPUID idCpu = 0; idCpu < pVM->cCpus; idCpu++)
1156 {
1157 PVMCPU pVCpu = &pVM->aCpus[idCpu];
1158 PAPICCPU pApicCpu = VMCPU_TO_APICCPU(pVCpu);
1159
1160 if (uVersion > APIC_SAVED_STATE_VERSION_VBOX_50)
1161 {
1162 /* Load the auxiliary data. */
1163 SSMR3GetU64(pSSM, (uint64_t *)&pApicCpu->uApicBaseMsr);
1164 SSMR3GetU32(pSSM, &pApicCpu->uEsrInternal);
1165
1166 /* Load the APIC page. */
1167 if (XAPIC_IN_X2APIC_MODE(pVCpu))
1168 SSMR3GetStruct(pSSM, pApicCpu->pvApicPageR3, &g_aX2ApicPageFields[0]);
1169 else
1170 SSMR3GetStruct(pSSM, pApicCpu->pvApicPageR3, &g_aXApicPageFields[0]);
1171
1172 /* Load the timer. */
1173 rc = SSMR3GetU64(pSSM, &pApicCpu->u64TimerInitial); AssertRCReturn(rc, rc);
1174 rc = TMR3TimerLoad(pApicCpu->pTimerR3, pSSM); AssertRCReturn(rc, rc);
1175 Assert(pApicCpu->uHintedTimerShift == 0);
1176 Assert(pApicCpu->uHintedTimerInitialCount == 0);
1177 if (TMTimerIsActive(pApicCpu->pTimerR3))
1178 {
1179 PCXAPICPAGE pXApicPage = VMCPU_TO_CXAPICPAGE(pVCpu);
1180 uint32_t const uInitialCount = pXApicPage->timer_icr.u32InitialCount;
1181 uint8_t const uTimerShift = apicGetTimerShift(pXApicPage);
1182 apicHintTimerFreq(pApicCpu, uInitialCount, uTimerShift);
1183 }
1184
1185 /* Load the LINT0, LINT1 interrupt line states. */
1186 if (uVersion > APIC_SAVED_STATE_VERSION_VBOX_51_BETA2)
1187 {
1188 SSMR3GetBool(pSSM, (bool *)&pApicCpu->fActiveLint0);
1189 SSMR3GetBool(pSSM, (bool *)&pApicCpu->fActiveLint1);
1190 }
1191 }
1192 else
1193 {
1194 rc = apicR3LoadLegacyVCpuData(pVCpu, pSSM, uVersion);
1195 AssertRCReturn(rc, rc);
1196 }
1197
1198 /*
1199 * Check that we're still good wrt restored data, then tell CPUM about the current CPUID[1].EDX[9] visibility.
1200 */
1201 rc = SSMR3HandleGetStatus(pSSM);
1202 AssertRCReturn(rc, rc);
1203 CPUMSetGuestCpuIdPerCpuApicFeature(pVCpu, RT_BOOL(pApicCpu->uApicBaseMsr & MSR_IA32_APICBASE_EN));
1204
1205#if defined(APIC_FUZZY_SSM_COMPAT_TEST) || defined(DEBUG_ramshankar)
1206 apicR3DumpState(pVCpu, "Loaded state", uVersion);
1207#endif
1208 }
1209
1210 return rc;
1211}
1212
1213
1214/**
1215 * The timer callback.
1216 *
1217 * @param pDevIns The device instance.
1218 * @param pTimer The timer handle.
1219 * @param pvUser Opaque pointer to the VMCPU.
1220 *
1221 * @thread Any.
1222 * @remarks Currently this function is invoked on the last EMT, see @c
1223 * idTimerCpu in tmR3TimerCallback(). However, the code does -not-
1224 * rely on this and is designed to work with being invoked on any
1225 * thread.
1226 */
1227static DECLCALLBACK(void) apicR3TimerCallback(PPDMDEVINS pDevIns, PTMTIMER pTimer, void *pvUser)
1228{
1229 PVMCPU pVCpu = (PVMCPU)pvUser;
1230 Assert(TMTimerIsLockOwner(pTimer));
1231 Assert(pVCpu);
1232 LogFlow(("APIC%u: apicR3TimerCallback\n", pVCpu->idCpu));
1233 RT_NOREF2(pDevIns, pTimer);
1234
1235 PXAPICPAGE pXApicPage = VMCPU_TO_XAPICPAGE(pVCpu);
1236 uint32_t const uLvtTimer = pXApicPage->lvt_timer.all.u32LvtTimer;
1237#ifdef VBOX_WITH_STATISTICS
1238 PAPICCPU pApicCpu = VMCPU_TO_APICCPU(pVCpu);
1239 STAM_COUNTER_INC(&pApicCpu->StatTimerCallback);
1240#endif
1241 if (!XAPIC_LVT_IS_MASKED(uLvtTimer))
1242 {
1243 uint8_t uVector = XAPIC_LVT_GET_VECTOR(uLvtTimer);
1244 Log2(("APIC%u: apicR3TimerCallback: Raising timer interrupt. uVector=%#x\n", pVCpu->idCpu, uVector));
1245 apicPostInterrupt(pVCpu, uVector, XAPICTRIGGERMODE_EDGE);
1246 }
1247
1248 XAPICTIMERMODE enmTimerMode = XAPIC_LVT_GET_TIMER_MODE(uLvtTimer);
1249 switch (enmTimerMode)
1250 {
1251 case XAPICTIMERMODE_PERIODIC:
1252 {
1253 /* The initial-count register determines if the periodic timer is re-armed. */
1254 uint32_t const uInitialCount = pXApicPage->timer_icr.u32InitialCount;
1255 pXApicPage->timer_ccr.u32CurrentCount = uInitialCount;
1256 if (uInitialCount)
1257 {
1258 Log2(("APIC%u: apicR3TimerCallback: Re-arming timer. uInitialCount=%#RX32\n", pVCpu->idCpu, uInitialCount));
1259 apicStartTimer(pVCpu, uInitialCount);
1260 }
1261 break;
1262 }
1263
1264 case XAPICTIMERMODE_ONESHOT:
1265 {
1266 pXApicPage->timer_ccr.u32CurrentCount = 0;
1267 break;
1268 }
1269
1270 case XAPICTIMERMODE_TSC_DEADLINE:
1271 {
1272 /** @todo implement TSC deadline. */
1273 AssertMsgFailed(("APIC: TSC deadline mode unimplemented\n"));
1274 break;
1275 }
1276 }
1277}
1278
1279
1280/**
1281 * @interface_method_impl{PDMDEVREG,pfnReset}
1282 */
1283static DECLCALLBACK(void) apicR3Reset(PPDMDEVINS pDevIns)
1284{
1285 PVM pVM = PDMDevHlpGetVM(pDevIns);
1286 VM_ASSERT_EMT0(pVM);
1287 VM_ASSERT_IS_NOT_RUNNING(pVM);
1288
1289 LogFlow(("APIC: apicR3Reset\n"));
1290
1291 for (VMCPUID idCpu = 0; idCpu < pVM->cCpus; idCpu++)
1292 {
1293 PVMCPU pVCpuDest = &pVM->aCpus[idCpu];
1294 PAPICCPU pApicCpu = VMCPU_TO_APICCPU(pVCpuDest);
1295
1296 if (TMTimerIsActive(pApicCpu->pTimerR3))
1297 TMTimerStop(pApicCpu->pTimerR3);
1298
1299 apicR3ResetCpu(pVCpuDest, true /* fResetApicBaseMsr */);
1300
1301 /* Clear the interrupt pending force flag. */
1302 apicClearInterruptFF(pVCpuDest, PDMAPICIRQ_HARDWARE);
1303 }
1304}
1305
1306
1307/**
1308 * @interface_method_impl{PDMDEVREG,pfnRelocate}
1309 */
1310static DECLCALLBACK(void) apicR3Relocate(PPDMDEVINS pDevIns, RTGCINTPTR offDelta)
1311{
1312 PVM pVM = PDMDevHlpGetVM(pDevIns);
1313 PAPIC pApic = VM_TO_APIC(pVM);
1314 PAPICDEV pApicDev = PDMINS_2_DATA(pDevIns, PAPICDEV);
1315
1316 LogFlow(("APIC: apicR3Relocate: pVM=%p pDevIns=%p offDelta=%RGi\n", pVM, pDevIns, offDelta));
1317
1318 pApicDev->pDevInsRC = PDMDEVINS_2_RCPTR(pDevIns);
1319 pApicDev->pApicHlpRC = pApicDev->pApicHlpR3->pfnGetRCHelpers(pDevIns);
1320 pApicDev->pCritSectRC = pApicDev->pApicHlpR3->pfnGetRCCritSect(pDevIns);
1321
1322 pApic->pApicDevRC = PDMINS_2_DATA_RCPTR(pDevIns);
1323 pApic->pvApicPibRC += offDelta;
1324
1325 for (VMCPUID idCpu = 0; idCpu < pVM->cCpus; idCpu++)
1326 {
1327 PVMCPU pVCpu = &pVM->aCpus[idCpu];
1328 PAPICCPU pApicCpu = VMCPU_TO_APICCPU(pVCpu);
1329 pApicCpu->pTimerRC = TMTimerRCPtr(pApicCpu->pTimerR3);
1330
1331 pApicCpu->pvApicPageRC += offDelta;
1332 pApicCpu->pvApicPibRC += offDelta;
1333 Log2(("APIC%u: apicR3Relocate: APIC PIB at %RGv\n", pVCpu->idCpu, pApicCpu->pvApicPibRC));
1334 }
1335}
1336
1337
1338/**
1339 * Terminates the APIC state.
1340 *
1341 * @param pVM The cross context VM structure.
1342 */
1343static void apicR3TermState(PVM pVM)
1344{
1345 PAPIC pApic = VM_TO_APIC(pVM);
1346 LogFlow(("APIC: apicR3TermState: pVM=%p\n", pVM));
1347
1348 /* Unmap and free the PIB. */
1349 if (pApic->pvApicPibR3 != NIL_RTR3PTR)
1350 {
1351 size_t const cPages = pApic->cbApicPib >> PAGE_SHIFT;
1352 if (cPages == 1)
1353 SUPR3PageFreeEx(pApic->pvApicPibR3, cPages);
1354 else
1355 SUPR3ContFree(pApic->pvApicPibR3, cPages);
1356 pApic->pvApicPibR3 = NIL_RTR3PTR;
1357 pApic->pvApicPibR0 = NIL_RTR0PTR;
1358 pApic->pvApicPibRC = NIL_RTRCPTR;
1359 }
1360
1361 /* Unmap and free the virtual-APIC pages. */
1362 for (VMCPUID idCpu = 0; idCpu < pVM->cCpus; idCpu++)
1363 {
1364 PVMCPU pVCpu = &pVM->aCpus[idCpu];
1365 PAPICCPU pApicCpu = VMCPU_TO_APICCPU(pVCpu);
1366
1367 pApicCpu->pvApicPibR3 = NIL_RTR3PTR;
1368 pApicCpu->pvApicPibR0 = NIL_RTR0PTR;
1369 pApicCpu->pvApicPibRC = NIL_RTRCPTR;
1370
1371 if (pApicCpu->pvApicPageR3 != NIL_RTR3PTR)
1372 {
1373 SUPR3PageFreeEx(pApicCpu->pvApicPageR3, 1 /* cPages */);
1374 pApicCpu->pvApicPageR3 = NIL_RTR3PTR;
1375 pApicCpu->pvApicPageR0 = NIL_RTR0PTR;
1376 pApicCpu->pvApicPageRC = NIL_RTRCPTR;
1377 }
1378 }
1379}
1380
1381
1382/**
1383 * Initializes the APIC state.
1384 *
1385 * @returns VBox status code.
1386 * @param pVM The cross context VM structure.
1387 */
1388static int apicR3InitState(PVM pVM)
1389{
1390 PAPIC pApic = VM_TO_APIC(pVM);
1391 LogFlow(("APIC: apicR3InitState: pVM=%p\n", pVM));
1392
1393 /* With hardware virtualization, we don't need to map the APIC in GC. */
1394 bool const fNeedsGCMapping = !HMIsEnabled(pVM);
1395
1396 /*
1397 * Allocate and map the pending-interrupt bitmap (PIB).
1398 *
1399 * We allocate all the VCPUs' PIBs contiguously in order to save space as
1400 * physically contiguous allocations are rounded to a multiple of page size.
1401 */
1402 Assert(pApic->pvApicPibR3 == NIL_RTR3PTR);
1403 Assert(pApic->pvApicPibR0 == NIL_RTR0PTR);
1404 Assert(pApic->pvApicPibRC == NIL_RTRCPTR);
1405 pApic->cbApicPib = RT_ALIGN_Z(pVM->cCpus * sizeof(APICPIB), PAGE_SIZE);
1406 size_t const cPages = pApic->cbApicPib >> PAGE_SHIFT;
1407 if (cPages == 1)
1408 {
1409 SUPPAGE SupApicPib;
1410 RT_ZERO(SupApicPib);
1411 SupApicPib.Phys = NIL_RTHCPHYS;
1412 int rc = SUPR3PageAllocEx(1 /* cPages */, 0 /* fFlags */, &pApic->pvApicPibR3, &pApic->pvApicPibR0, &SupApicPib);
1413 if (RT_SUCCESS(rc))
1414 {
1415 pApic->HCPhysApicPib = SupApicPib.Phys;
1416 AssertLogRelReturn(pApic->pvApicPibR3, VERR_INTERNAL_ERROR);
1417 }
1418 else
1419 {
1420 LogRel(("APIC: Failed to allocate %u bytes for the pending-interrupt bitmap, rc=%Rrc\n", pApic->cbApicPib, rc));
1421 return rc;
1422 }
1423 }
1424 else
1425 pApic->pvApicPibR3 = SUPR3ContAlloc(cPages, &pApic->pvApicPibR0, &pApic->HCPhysApicPib);
1426
1427 if (pApic->pvApicPibR3)
1428 {
1429 AssertLogRelReturn(pApic->pvApicPibR0 != NIL_RTR0PTR, VERR_INTERNAL_ERROR);
1430 AssertLogRelReturn(pApic->HCPhysApicPib != NIL_RTHCPHYS, VERR_INTERNAL_ERROR);
1431
1432 /* Initialize the PIB. */
1433 RT_BZERO(pApic->pvApicPibR3, pApic->cbApicPib);
1434
1435 /* Map the PIB into GC. */
1436 if (fNeedsGCMapping)
1437 {
1438 pApic->pvApicPibRC = NIL_RTRCPTR;
1439 int rc = MMR3HyperMapHCPhys(pVM, pApic->pvApicPibR3, NIL_RTR0PTR, pApic->HCPhysApicPib, pApic->cbApicPib,
1440 "APIC PIB", (PRTGCPTR)&pApic->pvApicPibRC);
1441 if (RT_FAILURE(rc))
1442 {
1443 LogRel(("APIC: Failed to map %u bytes for the pending-interrupt bitmap into GC, rc=%Rrc\n", pApic->cbApicPib,
1444 rc));
1445 apicR3TermState(pVM);
1446 return rc;
1447 }
1448
1449 AssertLogRelReturn(pApic->pvApicPibRC != NIL_RTRCPTR, VERR_INTERNAL_ERROR);
1450 }
1451
1452 /*
1453 * Allocate the map the virtual-APIC pages.
1454 */
1455 for (VMCPUID idCpu = 0; idCpu < pVM->cCpus; idCpu++)
1456 {
1457 PVMCPU pVCpu = &pVM->aCpus[idCpu];
1458 PAPICCPU pApicCpu = VMCPU_TO_APICCPU(pVCpu);
1459
1460 SUPPAGE SupApicPage;
1461 RT_ZERO(SupApicPage);
1462 SupApicPage.Phys = NIL_RTHCPHYS;
1463
1464 Assert(pVCpu->idCpu == idCpu);
1465 Assert(pApicCpu->pvApicPageR3 == NIL_RTR0PTR);
1466 Assert(pApicCpu->pvApicPageR0 == NIL_RTR0PTR);
1467 Assert(pApicCpu->pvApicPageRC == NIL_RTRCPTR);
1468 AssertCompile(sizeof(XAPICPAGE) == PAGE_SIZE);
1469 pApicCpu->cbApicPage = sizeof(XAPICPAGE);
1470 int rc = SUPR3PageAllocEx(1 /* cPages */, 0 /* fFlags */, &pApicCpu->pvApicPageR3, &pApicCpu->pvApicPageR0,
1471 &SupApicPage);
1472 if (RT_SUCCESS(rc))
1473 {
1474 AssertLogRelReturn(pApicCpu->pvApicPageR3 != NIL_RTR3PTR, VERR_INTERNAL_ERROR);
1475 AssertLogRelReturn(pApicCpu->HCPhysApicPage != NIL_RTHCPHYS, VERR_INTERNAL_ERROR);
1476 pApicCpu->HCPhysApicPage = SupApicPage.Phys;
1477
1478 /* Map the virtual-APIC page into GC. */
1479 if (fNeedsGCMapping)
1480 {
1481 rc = MMR3HyperMapHCPhys(pVM, pApicCpu->pvApicPageR3, NIL_RTR0PTR, pApicCpu->HCPhysApicPage,
1482 pApicCpu->cbApicPage, "APIC", (PRTGCPTR)&pApicCpu->pvApicPageRC);
1483 if (RT_FAILURE(rc))
1484 {
1485 LogRel(("APIC%u: Failed to map %u bytes for the virtual-APIC page into GC, rc=%Rrc", idCpu,
1486 pApicCpu->cbApicPage, rc));
1487 apicR3TermState(pVM);
1488 return rc;
1489 }
1490
1491 AssertLogRelReturn(pApicCpu->pvApicPageRC != NIL_RTRCPTR, VERR_INTERNAL_ERROR);
1492 }
1493
1494 /* Associate the per-VCPU PIB pointers to the per-VM PIB mapping. */
1495 uint32_t const offApicPib = idCpu * sizeof(APICPIB);
1496 pApicCpu->pvApicPibR0 = (RTR0PTR)((RTR0UINTPTR)pApic->pvApicPibR0 + offApicPib);
1497 pApicCpu->pvApicPibR3 = (RTR3PTR)((RTR3UINTPTR)pApic->pvApicPibR3 + offApicPib);
1498 if (fNeedsGCMapping)
1499 pApicCpu->pvApicPibRC = (RTRCPTR)((RTRCUINTPTR)pApic->pvApicPibRC + offApicPib);
1500
1501 /* Initialize the virtual-APIC state. */
1502 RT_BZERO(pApicCpu->pvApicPageR3, pApicCpu->cbApicPage);
1503 apicR3ResetCpu(pVCpu, true /* fResetApicBaseMsr */);
1504
1505#ifdef DEBUG_ramshankar
1506 Assert(pApicCpu->pvApicPibR3 != NIL_RTR3PTR);
1507 Assert(pApicCpu->pvApicPibR0 != NIL_RTR0PTR);
1508 Assert(!fNeedsGCMapping || pApicCpu->pvApicPibRC != NIL_RTRCPTR);
1509 Assert(pApicCpu->pvApicPageR3 != NIL_RTR3PTR);
1510 Assert(pApicCpu->pvApicPageR0 != NIL_RTR0PTR);
1511 Assert(!fNeedsGCMapping || pApicCpu->pvApicPageRC != NIL_RTRCPTR);
1512 Assert(!fNeedsGCMapping || pApic->pvApicPibRC == pVM->aCpus[0].apic.s.pvApicPibRC);
1513#endif
1514 }
1515 else
1516 {
1517 LogRel(("APIC%u: Failed to allocate %u bytes for the virtual-APIC page, rc=%Rrc\n", idCpu, pApicCpu->cbApicPage, rc));
1518 apicR3TermState(pVM);
1519 return rc;
1520 }
1521 }
1522
1523#ifdef DEBUG_ramshankar
1524 Assert(pApic->pvApicPibR3 != NIL_RTR3PTR);
1525 Assert(pApic->pvApicPibR0 != NIL_RTR0PTR);
1526 Assert(!fNeedsGCMapping || pApic->pvApicPibRC != NIL_RTRCPTR);
1527#endif
1528 return VINF_SUCCESS;
1529 }
1530
1531 LogRel(("APIC: Failed to allocate %u bytes of physically contiguous memory for the pending-interrupt bitmap\n",
1532 pApic->cbApicPib));
1533 return VERR_NO_MEMORY;
1534}
1535
1536
1537/**
1538 * @interface_method_impl{PDMDEVREG,pfnDestruct}
1539 */
1540static DECLCALLBACK(int) apicR3Destruct(PPDMDEVINS pDevIns)
1541{
1542 PVM pVM = PDMDevHlpGetVM(pDevIns);
1543 LogFlow(("APIC: apicR3Destruct: pVM=%p\n", pVM));
1544
1545 apicR3TermState(pVM);
1546 return VINF_SUCCESS;
1547}
1548
1549
1550/**
1551 * @interface_method_impl{PDMDEVREG,pfnInitComplete}
1552 */
1553static DECLCALLBACK(int) apicR3InitComplete(PPDMDEVINS pDevIns)
1554{
1555 PVM pVM = PDMDevHlpGetVM(pDevIns);
1556 PAPIC pApic = VM_TO_APIC(pVM);
1557
1558 /*
1559 * Init APIC settings that rely on HM and CPUM configurations.
1560 */
1561 CPUMCPUIDLEAF CpuLeaf;
1562 int rc = CPUMR3CpuIdGetLeaf(pVM, &CpuLeaf, 1, 0);
1563 AssertRCReturn(rc, rc);
1564
1565 pApic->fSupportsTscDeadline = RT_BOOL(CpuLeaf.uEcx & X86_CPUID_FEATURE_ECX_TSCDEADL);
1566 pApic->fPostedIntrsEnabled = HMR3IsPostedIntrsEnabled(pVM->pUVM);
1567 pApic->fVirtApicRegsEnabled = HMR3IsVirtApicRegsEnabled(pVM->pUVM);
1568
1569 LogRel(("APIC: fPostedIntrsEnabled=%RTbool fVirtApicRegsEnabled=%RTbool fSupportsTscDeadline=%RTbool\n",
1570 pApic->fPostedIntrsEnabled, pApic->fVirtApicRegsEnabled, pApic->fSupportsTscDeadline));
1571
1572 return VINF_SUCCESS;
1573}
1574
1575
1576/**
1577 * @interface_method_impl{PDMDEVREG,pfnConstruct}
1578 */
1579static DECLCALLBACK(int) apicR3Construct(PPDMDEVINS pDevIns, int iInstance, PCFGMNODE pCfg)
1580{
1581 /*
1582 * Validate inputs.
1583 */
1584 Assert(iInstance == 0); NOREF(iInstance);
1585 Assert(pDevIns);
1586
1587 PAPICDEV pApicDev = PDMINS_2_DATA(pDevIns, PAPICDEV);
1588 PVM pVM = PDMDevHlpGetVM(pDevIns);
1589 PAPIC pApic = VM_TO_APIC(pVM);
1590
1591 /*
1592 * Init the data.
1593 */
1594 pApicDev->pDevInsR3 = pDevIns;
1595 pApicDev->pDevInsR0 = PDMDEVINS_2_R0PTR(pDevIns);
1596 pApicDev->pDevInsRC = PDMDEVINS_2_RCPTR(pDevIns);
1597
1598 pApic->pApicDevR0 = PDMINS_2_DATA_R0PTR(pDevIns);
1599 pApic->pApicDevR3 = (PAPICDEV)PDMINS_2_DATA_R3PTR(pDevIns);
1600 pApic->pApicDevRC = PDMINS_2_DATA_RCPTR(pDevIns);
1601
1602 /*
1603 * Validate APIC settings.
1604 */
1605 if (!CFGMR3AreValuesValid(pCfg, "RZEnabled\0"
1606 "Mode\0"
1607 "IOAPIC\0"
1608 "NumCPUs\0"))
1609 {
1610 return PDMDEV_SET_ERROR(pDevIns, VERR_PDM_DEVINS_UNKNOWN_CFG_VALUES,
1611 N_("APIC configuration error: unknown option specified"));
1612 }
1613
1614 int rc = CFGMR3QueryBoolDef(pCfg, "RZEnabled", &pApic->fRZEnabled, true);
1615 AssertLogRelRCReturn(rc, rc);
1616
1617 rc = CFGMR3QueryBoolDef(pCfg, "IOAPIC", &pApic->fIoApicPresent, true);
1618 AssertLogRelRCReturn(rc, rc);
1619
1620 /* Max APIC feature level. */
1621 uint8_t uMaxMode;
1622 rc = CFGMR3QueryU8Def(pCfg, "Mode", &uMaxMode, PDMAPICMODE_APIC);
1623 AssertLogRelRCReturn(rc, rc);
1624 switch ((PDMAPICMODE)uMaxMode)
1625 {
1626 case PDMAPICMODE_NONE:
1627#if 1
1628 /** @todo permanently disabling the APIC won't really work (needs
1629 * fixing in HM, CPUM, PDM and possibly other places). See
1630 * @bugref{8353}. */
1631 return VMR3SetError(pVM->pUVM, VERR_INVALID_PARAMETER, RT_SRC_POS, "APIC mode 'none' is not supported yet.");
1632#endif
1633 case PDMAPICMODE_APIC:
1634 case PDMAPICMODE_X2APIC:
1635 break;
1636 default:
1637 return VMR3SetError(pVM->pUVM, VERR_INVALID_PARAMETER, RT_SRC_POS, "APIC mode %d unknown.", uMaxMode);
1638 }
1639 pApic->enmMaxMode = (PDMAPICMODE)uMaxMode;
1640
1641 /*
1642 * Disable automatic PDM locking for this device.
1643 */
1644 rc = PDMDevHlpSetDeviceCritSect(pDevIns, PDMDevHlpCritSectGetNop(pDevIns));
1645 AssertRCReturn(rc, rc);
1646
1647 /*
1648 * Register the APIC with PDM.
1649 */
1650 PDMAPICREG ApicReg;
1651 RT_ZERO(ApicReg);
1652 ApicReg.u32Version = PDM_APICREG_VERSION;
1653 ApicReg.pfnGetInterruptR3 = apicGetInterrupt;
1654 ApicReg.pfnSetBaseMsrR3 = apicSetBaseMsr;
1655 ApicReg.pfnGetBaseMsrR3 = apicGetBaseMsr;
1656 ApicReg.pfnSetTprR3 = apicSetTpr;
1657 ApicReg.pfnGetTprR3 = apicGetTpr;
1658 ApicReg.pfnWriteMsrR3 = apicWriteMsr;
1659 ApicReg.pfnReadMsrR3 = apicReadMsr;
1660 ApicReg.pfnBusDeliverR3 = apicBusDeliver;
1661 ApicReg.pfnLocalInterruptR3 = apicLocalInterrupt;
1662 ApicReg.pfnGetTimerFreqR3 = apicGetTimerFreq;
1663
1664 /*
1665 * We always require R0 functionality (e.g. apicGetTpr() called by HMR0 VT-x/AMD-V code).
1666 * Hence, 'fRZEnabled' strictly only applies to MMIO and MSR read/write handlers returning
1667 * to ring-3. We still need other handlers like apicGetTpr() in ring-0 for now.
1668 */
1669 {
1670 ApicReg.pszGetInterruptRC = "apicGetInterrupt";
1671 ApicReg.pszSetBaseMsrRC = "apicSetBaseMsr";
1672 ApicReg.pszGetBaseMsrRC = "apicGetBaseMsr";
1673 ApicReg.pszSetTprRC = "apicSetTpr";
1674 ApicReg.pszGetTprRC = "apicGetTpr";
1675 ApicReg.pszWriteMsrRC = "apicWriteMsr";
1676 ApicReg.pszReadMsrRC = "apicReadMsr";
1677 ApicReg.pszBusDeliverRC = "apicBusDeliver";
1678 ApicReg.pszLocalInterruptRC = "apicLocalInterrupt";
1679 ApicReg.pszGetTimerFreqRC = "apicGetTimerFreq";
1680
1681 ApicReg.pszGetInterruptR0 = "apicGetInterrupt";
1682 ApicReg.pszSetBaseMsrR0 = "apicSetBaseMsr";
1683 ApicReg.pszGetBaseMsrR0 = "apicGetBaseMsr";
1684 ApicReg.pszSetTprR0 = "apicSetTpr";
1685 ApicReg.pszGetTprR0 = "apicGetTpr";
1686 ApicReg.pszWriteMsrR0 = "apicWriteMsr";
1687 ApicReg.pszReadMsrR0 = "apicReadMsr";
1688 ApicReg.pszBusDeliverR0 = "apicBusDeliver";
1689 ApicReg.pszLocalInterruptR0 = "apicLocalInterrupt";
1690 ApicReg.pszGetTimerFreqR0 = "apicGetTimerFreq";
1691 }
1692
1693 rc = PDMDevHlpAPICRegister(pDevIns, &ApicReg, &pApicDev->pApicHlpR3);
1694 AssertLogRelRCReturn(rc, rc);
1695 pApicDev->pCritSectR3 = pApicDev->pApicHlpR3->pfnGetR3CritSect(pDevIns);
1696
1697 /*
1698 * Initialize the APIC state.
1699 */
1700 /* First insert the MSR range of the x2APIC if enabled. */
1701 if (pApic->enmMaxMode == PDMAPICMODE_X2APIC)
1702 {
1703 rc = CPUMR3MsrRangesInsert(pVM, &g_MsrRange_x2Apic);
1704 AssertLogRelRCReturn(rc, rc);
1705 }
1706
1707 /* Tell CPUM about the APIC feature level so it can adjust APICBASE MSR GP mask and CPUID bits. */
1708 pApicDev->pApicHlpR3->pfnSetFeatureLevel(pDevIns, pApic->enmMaxMode);
1709
1710 /* Initialize the state. */
1711 rc = apicR3InitState(pVM);
1712 AssertRCReturn(rc, rc);
1713
1714 /*
1715 * Register the MMIO range.
1716 */
1717 PAPICCPU pApicCpu0 = VMCPU_TO_APICCPU(&pVM->aCpus[0]);
1718 RTGCPHYS GCPhysApicBase = MSR_IA32_APICBASE_GET_ADDR(pApicCpu0->uApicBaseMsr);
1719
1720 rc = PDMDevHlpMMIORegister(pDevIns, GCPhysApicBase, sizeof(XAPICPAGE), NULL /* pvUser */,
1721 IOMMMIO_FLAGS_READ_DWORD | IOMMMIO_FLAGS_WRITE_DWORD_ZEROED,
1722 apicWriteMmio, apicReadMmio, "APIC");
1723 if (RT_FAILURE(rc))
1724 return rc;
1725
1726 if (pApic->fRZEnabled)
1727 {
1728 pApicDev->pApicHlpRC = pApicDev->pApicHlpR3->pfnGetRCHelpers(pDevIns);
1729 pApicDev->pCritSectRC = pApicDev->pApicHlpR3->pfnGetRCCritSect(pDevIns);
1730 rc = PDMDevHlpMMIORegisterRC(pDevIns, GCPhysApicBase, sizeof(XAPICPAGE), NIL_RTRCPTR /*pvUser*/,
1731 "apicWriteMmio", "apicReadMmio");
1732 if (RT_FAILURE(rc))
1733 return rc;
1734
1735 pApicDev->pApicHlpR0 = pApicDev->pApicHlpR3->pfnGetR0Helpers(pDevIns);
1736 pApicDev->pCritSectR0 = pApicDev->pApicHlpR3->pfnGetR0CritSect(pDevIns);
1737 rc = PDMDevHlpMMIORegisterR0(pDevIns, GCPhysApicBase, sizeof(XAPICPAGE), NIL_RTR0PTR /*pvUser*/,
1738 "apicWriteMmio", "apicReadMmio");
1739 if (RT_FAILURE(rc))
1740 return rc;
1741 }
1742
1743 /*
1744 * Create the APIC timers.
1745 */
1746 for (VMCPUID idCpu = 0; idCpu < pVM->cCpus; idCpu++)
1747 {
1748 PVMCPU pVCpu = &pVM->aCpus[idCpu];
1749 PAPICCPU pApicCpu = VMCPU_TO_APICCPU(pVCpu);
1750 RTStrPrintf(&pApicCpu->szTimerDesc[0], sizeof(pApicCpu->szTimerDesc), "APIC Timer %u", pVCpu->idCpu);
1751 rc = PDMDevHlpTMTimerCreate(pDevIns, TMCLOCK_VIRTUAL_SYNC, apicR3TimerCallback, pVCpu, TMTIMER_FLAGS_NO_CRIT_SECT,
1752 pApicCpu->szTimerDesc, &pApicCpu->pTimerR3);
1753 if (RT_SUCCESS(rc))
1754 {
1755 pApicCpu->pTimerR0 = TMTimerR0Ptr(pApicCpu->pTimerR3);
1756 pApicCpu->pTimerRC = TMTimerRCPtr(pApicCpu->pTimerR3);
1757 }
1758 else
1759 return rc;
1760 }
1761
1762 /*
1763 * Register saved state callbacks.
1764 */
1765 rc = PDMDevHlpSSMRegister3(pDevIns, APIC_SAVED_STATE_VERSION, sizeof(*pApicDev), NULL /*pfnLiveExec*/, apicR3SaveExec,
1766 apicR3LoadExec);
1767 if (RT_FAILURE(rc))
1768 return rc;
1769
1770 /*
1771 * Register debugger info callbacks.
1772 *
1773 * We use separate callbacks rather than arguments so they can also be
1774 * dumped in an automated fashion while collecting crash diagnostics and
1775 * not just used during live debugging via the VM debugger.
1776 */
1777 rc = DBGFR3InfoRegisterInternalEx(pVM, "apic", "Dumps APIC basic information.", apicR3Info, DBGFINFO_FLAGS_ALL_EMTS);
1778 rc |= DBGFR3InfoRegisterInternalEx(pVM, "apiclvt", "Dumps APIC LVT information.", apicR3InfoLvt, DBGFINFO_FLAGS_ALL_EMTS);
1779 rc |= DBGFR3InfoRegisterInternalEx(pVM, "apictimer", "Dumps APIC timer information.", apicR3InfoTimer, DBGFINFO_FLAGS_ALL_EMTS);
1780 AssertRCReturn(rc, rc);
1781
1782#ifdef VBOX_WITH_STATISTICS
1783 /*
1784 * Statistics.
1785 */
1786#define APIC_REG_COUNTER(a_Reg, a_Desc, a_Key) \
1787 do { \
1788 rc = STAMR3RegisterF(pVM, a_Reg, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, a_Desc, a_Key, idCpu); \
1789 AssertRCReturn(rc, rc); \
1790 } while(0)
1791
1792#define APIC_PROF_COUNTER(a_Reg, a_Desc, a_Key) \
1793 do { \
1794 rc = STAMR3RegisterF(pVM, a_Reg, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_TICKS_PER_CALL, a_Desc, a_Key, \
1795 idCpu); \
1796 AssertRCReturn(rc, rc); \
1797 } while(0)
1798
1799 for (VMCPUID idCpu = 0; idCpu < pVM->cCpus; idCpu++)
1800 {
1801 PVMCPU pVCpu = &pVM->aCpus[idCpu];
1802 PAPICCPU pApicCpu = VMCPU_TO_APICCPU(pVCpu);
1803
1804 APIC_REG_COUNTER(&pApicCpu->StatMmioReadRZ, "Number of APIC MMIO reads in RZ.", "/Devices/APIC/%u/RZ/MmioRead");
1805 APIC_REG_COUNTER(&pApicCpu->StatMmioWriteRZ, "Number of APIC MMIO writes in RZ.", "/Devices/APIC/%u/RZ/MmioWrite");
1806 APIC_REG_COUNTER(&pApicCpu->StatMsrReadRZ, "Number of APIC MSR reads in RZ.", "/Devices/APIC/%u/RZ/MsrRead");
1807 APIC_REG_COUNTER(&pApicCpu->StatMsrWriteRZ, "Number of APIC MSR writes in RZ.", "/Devices/APIC/%u/RZ/MsrWrite");
1808
1809 APIC_REG_COUNTER(&pApicCpu->StatMmioReadR3, "Number of APIC MMIO reads in R3.", "/Devices/APIC/%u/R3/MmioReadR3");
1810 APIC_REG_COUNTER(&pApicCpu->StatMmioWriteR3, "Number of APIC MMIO writes in R3.", "/Devices/APIC/%u/R3/MmioWriteR3");
1811 APIC_REG_COUNTER(&pApicCpu->StatMsrReadR3, "Number of APIC MSR reads in R3.", "/Devices/APIC/%u/R3/MsrReadR3");
1812 APIC_REG_COUNTER(&pApicCpu->StatMsrWriteR3, "Number of APIC MSR writes in R3.", "/Devices/APIC/%u/R3/MsrWriteR3");
1813
1814 APIC_PROF_COUNTER(&pApicCpu->StatUpdatePendingIntrs, "Profiling of APICUpdatePendingInterrupts",
1815 "/PROF/CPU%d/APIC/UpdatePendingInterrupts");
1816 APIC_PROF_COUNTER(&pApicCpu->StatPostIntr, "Profiling of APICPostInterrupt", "/PROF/CPU%d/APIC/PostInterrupt");
1817
1818 APIC_REG_COUNTER(&pApicCpu->StatPostIntrAlreadyPending, "Number of times an interrupt is already pending.",
1819 "/Devices/APIC/%u/PostInterruptAlreadyPending");
1820 APIC_REG_COUNTER(&pApicCpu->StatTimerCallback, "Number of times the timer callback is invoked.",
1821 "/Devices/APIC/%u/TimerCallback");
1822
1823 APIC_REG_COUNTER(&pApicCpu->StatTprWrite, "Number of TPR writes.", "/Devices/APIC/%u/TprWrite");
1824 APIC_REG_COUNTER(&pApicCpu->StatTprRead, "Number of TPR reads.", "/Devices/APIC/%u/TprRead");
1825 APIC_REG_COUNTER(&pApicCpu->StatEoiWrite, "Number of EOI writes.", "/Devices/APIC/%u/EoiWrite");
1826 APIC_REG_COUNTER(&pApicCpu->StatMaskedByTpr, "Number of times TPR masks an interrupt in apicGetInterrupt.",
1827 "/Devices/APIC/%u/MaskedByTpr");
1828 APIC_REG_COUNTER(&pApicCpu->StatMaskedByPpr, "Number of times PPR masks an interrupt in apicGetInterrupt.",
1829 "/Devices/APIC/%u/MaskedByPpr");
1830 APIC_REG_COUNTER(&pApicCpu->StatTimerIcrWrite, "Number of times the timer ICR is written.",
1831 "/Devices/APIC/%u/TimerIcrWrite");
1832 APIC_REG_COUNTER(&pApicCpu->StatIcrLoWrite, "Number of times the ICR Lo (send IPI) is written.",
1833 "/Devices/APIC/%u/IcrLoWrite");
1834 }
1835# undef APIC_PROF_COUNTER
1836# undef APIC_REG_ACCESS_COUNTER
1837#endif
1838
1839 return VINF_SUCCESS;
1840}
1841
1842
1843/**
1844 * APIC device registration structure.
1845 */
1846const PDMDEVREG g_DeviceAPIC =
1847{
1848 /* u32Version */
1849 PDM_DEVREG_VERSION,
1850 /* szName */
1851 "apic",
1852 /* szRCMod */
1853 "VMMRC.rc",
1854 /* szR0Mod */
1855 "VMMR0.r0",
1856 /* pszDescription */
1857 "Advanced Programmable Interrupt Controller",
1858 /* fFlags */
1859 PDM_DEVREG_FLAGS_HOST_BITS_DEFAULT | PDM_DEVREG_FLAGS_GUEST_BITS_32_64 | PDM_DEVREG_FLAGS_PAE36
1860 | PDM_DEVREG_FLAGS_RC | PDM_DEVREG_FLAGS_R0,
1861 /* fClass */
1862 PDM_DEVREG_CLASS_PIC,
1863 /* cMaxInstances */
1864 1,
1865 /* cbInstance */
1866 sizeof(APICDEV),
1867 /* pfnConstruct */
1868 apicR3Construct,
1869 /* pfnDestruct */
1870 apicR3Destruct,
1871 /* pfnRelocate */
1872 apicR3Relocate,
1873 /* pfnMemSetup */
1874 NULL,
1875 /* pfnPowerOn */
1876 NULL,
1877 /* pfnReset */
1878 apicR3Reset,
1879 /* pfnSuspend */
1880 NULL,
1881 /* pfnResume */
1882 NULL,
1883 /* pfnAttach */
1884 NULL,
1885 /* pfnDetach */
1886 NULL,
1887 /* pfnQueryInterface. */
1888 NULL,
1889 /* pfnInitComplete */
1890 apicR3InitComplete,
1891 /* pfnPowerOff */
1892 NULL,
1893 /* pfnSoftReset */
1894 NULL,
1895 /* u32VersionEnd */
1896 PDM_DEVREG_VERSION
1897};
1898
1899#endif /* !VBOX_DEVICE_STRUCT_TESTCASE */
1900
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