APIC.cpp@ 94249

Last change on this file since 94249 was 93554, checked in by vboxsync, 3 years ago
VMM: Changed PAGE_SIZE -> GUEST_PAGE_SIZE / HOST_PAGE_SIZE, PAGE_SHIFT -> GUEST_PAGE_SHIFT / HOST_PAGE_SHIFT, and PAGE_OFFSET_MASK -> GUEST_PAGE_OFFSET_MASK / HOST_PAGE_OFFSET_MASK. Also removed most usage of ASMMemIsZeroPage and ASMMemZeroPage since the host and guest page size doesn't need to be the same any more. Some work left to do in the page pool code. bugref:9898
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 67.5 KB

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1	/* $Id: APIC.cpp 93554 2022-02-02 22:57:02Z vboxsync $ */
2	/** @file
3	* APIC - Advanced Programmable Interrupt Controller.
4	*/
5
6	/*
7	* Copyright (C) 2016-2022 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/apic.h>
26	#include <VBox/vmm/cpum.h>
27	#include <VBox/vmm/hm.h>
28	#include <VBox/vmm/mm.h>
29	#include <VBox/vmm/pdmdev.h>
30	#include <VBox/vmm/ssm.h>
31	#include <VBox/vmm/vm.h>
32
33
34	#ifndef VBOX_DEVICE_STRUCT_TESTCASE
35
36
37	/*********************************************************************************************************************************
38	* Defined Constants And Macros *
39	*********************************************************************************************************************************/
40	/** The current APIC saved state version. */
41	#define APIC_SAVED_STATE_VERSION 5
42	/** VirtualBox 5.1 beta2 - pre fActiveLintX. */
43	#define APIC_SAVED_STATE_VERSION_VBOX_51_BETA2 4
44	/** The saved state version used by VirtualBox 5.0 and
45	* earlier. */
46	#define APIC_SAVED_STATE_VERSION_VBOX_50 3
47	/** The saved state version used by VirtualBox v3 and earlier.
48	* This does not include the config. */
49	#define APIC_SAVED_STATE_VERSION_VBOX_30 2
50	/** Some ancient version... */
51	#define APIC_SAVED_STATE_VERSION_ANCIENT 1
52
53	#ifdef VBOX_WITH_STATISTICS
54	# define X2APIC_MSRRANGE(a_uFirst, a_uLast, a_szName) \
55	{ (a_uFirst), (a_uLast), kCpumMsrRdFn_Ia32X2ApicN, kCpumMsrWrFn_Ia32X2ApicN, 0, 0, 0, 0, 0, a_szName, { 0 }, { 0 }, { 0 }, { 0 } }
56	# define X2APIC_MSRRANGE_INVALID(a_uFirst, a_uLast, a_szName) \
57	{ (a_uFirst), (a_uLast), kCpumMsrRdFn_WriteOnly, kCpumMsrWrFn_ReadOnly, 0, 0, 0, 0, UINT64_MAX /fWrGpMask/, a_szName, { 0 }, { 0 }, { 0 }, { 0 } }
58	#else
59	# define X2APIC_MSRRANGE(a_uFirst, a_uLast, a_szName) \
60	{ (a_uFirst), (a_uLast), kCpumMsrRdFn_Ia32X2ApicN, kCpumMsrWrFn_Ia32X2ApicN, 0, 0, 0, 0, 0, a_szName }
61	# define X2APIC_MSRRANGE_INVALID(a_uFirst, a_uLast, a_szName) \
62	{ (a_uFirst), (a_uLast), kCpumMsrRdFn_WriteOnly, kCpumMsrWrFn_ReadOnly, 0, 0, 0, 0, UINT64_MAX /fWrGpMask/, a_szName }
63	#endif
64
65
66	/*********************************************************************************************************************************
67	* Global Variables *
68	*********************************************************************************************************************************/
69	/**
70	* MSR range supported by the x2APIC.
71	* See Intel spec. 10.12.2 "x2APIC Register Availability".
72	*/
73	static CPUMMSRRANGE const g_MsrRange_x2Apic = X2APIC_MSRRANGE(MSR_IA32_X2APIC_START, MSR_IA32_X2APIC_END, "x2APIC range");
74	static CPUMMSRRANGE const g_MsrRange_x2Apic_Invalid = X2APIC_MSRRANGE_INVALID(MSR_IA32_X2APIC_START, MSR_IA32_X2APIC_END, "x2APIC range invalid");
75	#undef X2APIC_MSRRANGE
76	#undef X2APIC_MSRRANGE_GP
77
78	/** Saved state field descriptors for XAPICPAGE. */
79	static const SSMFIELD g_aXApicPageFields[] =
80	{
81	SSMFIELD_ENTRY( XAPICPAGE, id.u8ApicId),
82	SSMFIELD_ENTRY( XAPICPAGE, version.all.u32Version),
83	SSMFIELD_ENTRY( XAPICPAGE, tpr.u8Tpr),
84	SSMFIELD_ENTRY( XAPICPAGE, apr.u8Apr),
85	SSMFIELD_ENTRY( XAPICPAGE, ppr.u8Ppr),
86	SSMFIELD_ENTRY( XAPICPAGE, ldr.all.u32Ldr),
87	SSMFIELD_ENTRY( XAPICPAGE, dfr.all.u32Dfr),
88	SSMFIELD_ENTRY( XAPICPAGE, svr.all.u32Svr),
89	SSMFIELD_ENTRY( XAPICPAGE, isr.u[0].u32Reg),
90	SSMFIELD_ENTRY( XAPICPAGE, isr.u[1].u32Reg),
91	SSMFIELD_ENTRY( XAPICPAGE, isr.u[2].u32Reg),
92	SSMFIELD_ENTRY( XAPICPAGE, isr.u[3].u32Reg),
93	SSMFIELD_ENTRY( XAPICPAGE, isr.u[4].u32Reg),
94	SSMFIELD_ENTRY( XAPICPAGE, isr.u[5].u32Reg),
95	SSMFIELD_ENTRY( XAPICPAGE, isr.u[6].u32Reg),
96	SSMFIELD_ENTRY( XAPICPAGE, isr.u[7].u32Reg),
97	SSMFIELD_ENTRY( XAPICPAGE, tmr.u[0].u32Reg),
98	SSMFIELD_ENTRY( XAPICPAGE, tmr.u[1].u32Reg),
99	SSMFIELD_ENTRY( XAPICPAGE, tmr.u[2].u32Reg),
100	SSMFIELD_ENTRY( XAPICPAGE, tmr.u[3].u32Reg),
101	SSMFIELD_ENTRY( XAPICPAGE, tmr.u[4].u32Reg),
102	SSMFIELD_ENTRY( XAPICPAGE, tmr.u[5].u32Reg),
103	SSMFIELD_ENTRY( XAPICPAGE, tmr.u[6].u32Reg),
104	SSMFIELD_ENTRY( XAPICPAGE, tmr.u[7].u32Reg),
105	SSMFIELD_ENTRY( XAPICPAGE, irr.u[0].u32Reg),
106	SSMFIELD_ENTRY( XAPICPAGE, irr.u[1].u32Reg),
107	SSMFIELD_ENTRY( XAPICPAGE, irr.u[2].u32Reg),
108	SSMFIELD_ENTRY( XAPICPAGE, irr.u[3].u32Reg),
109	SSMFIELD_ENTRY( XAPICPAGE, irr.u[4].u32Reg),
110	SSMFIELD_ENTRY( XAPICPAGE, irr.u[5].u32Reg),
111	SSMFIELD_ENTRY( XAPICPAGE, irr.u[6].u32Reg),
112	SSMFIELD_ENTRY( XAPICPAGE, irr.u[7].u32Reg),
113	SSMFIELD_ENTRY( XAPICPAGE, esr.all.u32Errors),
114	SSMFIELD_ENTRY( XAPICPAGE, icr_lo.all.u32IcrLo),
115	SSMFIELD_ENTRY( XAPICPAGE, icr_hi.all.u32IcrHi),
116	SSMFIELD_ENTRY( XAPICPAGE, lvt_timer.all.u32LvtTimer),
117	SSMFIELD_ENTRY( XAPICPAGE, lvt_thermal.all.u32LvtThermal),
118	SSMFIELD_ENTRY( XAPICPAGE, lvt_perf.all.u32LvtPerf),
119	SSMFIELD_ENTRY( XAPICPAGE, lvt_lint0.all.u32LvtLint0),
120	SSMFIELD_ENTRY( XAPICPAGE, lvt_lint1.all.u32LvtLint1),
121	SSMFIELD_ENTRY( XAPICPAGE, lvt_error.all.u32LvtError),
122	SSMFIELD_ENTRY( XAPICPAGE, timer_icr.u32InitialCount),
123	SSMFIELD_ENTRY( XAPICPAGE, timer_ccr.u32CurrentCount),
124	SSMFIELD_ENTRY( XAPICPAGE, timer_dcr.all.u32DivideValue),
125	SSMFIELD_ENTRY_TERM()
126	};
127
128	/** Saved state field descriptors for X2APICPAGE. */
129	static const SSMFIELD g_aX2ApicPageFields[] =
130	{
131	SSMFIELD_ENTRY(X2APICPAGE, id.u32ApicId),
132	SSMFIELD_ENTRY(X2APICPAGE, version.all.u32Version),
133	SSMFIELD_ENTRY(X2APICPAGE, tpr.u8Tpr),
134	SSMFIELD_ENTRY(X2APICPAGE, ppr.u8Ppr),
135	SSMFIELD_ENTRY(X2APICPAGE, ldr.u32LogicalApicId),
136	SSMFIELD_ENTRY(X2APICPAGE, svr.all.u32Svr),
137	SSMFIELD_ENTRY(X2APICPAGE, isr.u[0].u32Reg),
138	SSMFIELD_ENTRY(X2APICPAGE, isr.u[1].u32Reg),
139	SSMFIELD_ENTRY(X2APICPAGE, isr.u[2].u32Reg),
140	SSMFIELD_ENTRY(X2APICPAGE, isr.u[3].u32Reg),
141	SSMFIELD_ENTRY(X2APICPAGE, isr.u[4].u32Reg),
142	SSMFIELD_ENTRY(X2APICPAGE, isr.u[5].u32Reg),
143	SSMFIELD_ENTRY(X2APICPAGE, isr.u[6].u32Reg),
144	SSMFIELD_ENTRY(X2APICPAGE, isr.u[7].u32Reg),
145	SSMFIELD_ENTRY(X2APICPAGE, tmr.u[0].u32Reg),
146	SSMFIELD_ENTRY(X2APICPAGE, tmr.u[1].u32Reg),
147	SSMFIELD_ENTRY(X2APICPAGE, tmr.u[2].u32Reg),
148	SSMFIELD_ENTRY(X2APICPAGE, tmr.u[3].u32Reg),
149	SSMFIELD_ENTRY(X2APICPAGE, tmr.u[4].u32Reg),
150	SSMFIELD_ENTRY(X2APICPAGE, tmr.u[5].u32Reg),
151	SSMFIELD_ENTRY(X2APICPAGE, tmr.u[6].u32Reg),
152	SSMFIELD_ENTRY(X2APICPAGE, tmr.u[7].u32Reg),
153	SSMFIELD_ENTRY(X2APICPAGE, irr.u[0].u32Reg),
154	SSMFIELD_ENTRY(X2APICPAGE, irr.u[1].u32Reg),
155	SSMFIELD_ENTRY(X2APICPAGE, irr.u[2].u32Reg),
156	SSMFIELD_ENTRY(X2APICPAGE, irr.u[3].u32Reg),
157	SSMFIELD_ENTRY(X2APICPAGE, irr.u[4].u32Reg),
158	SSMFIELD_ENTRY(X2APICPAGE, irr.u[5].u32Reg),
159	SSMFIELD_ENTRY(X2APICPAGE, irr.u[6].u32Reg),
160	SSMFIELD_ENTRY(X2APICPAGE, irr.u[7].u32Reg),
161	SSMFIELD_ENTRY(X2APICPAGE, esr.all.u32Errors),
162	SSMFIELD_ENTRY(X2APICPAGE, icr_lo.all.u32IcrLo),
163	SSMFIELD_ENTRY(X2APICPAGE, icr_hi.u32IcrHi),
164	SSMFIELD_ENTRY(X2APICPAGE, lvt_timer.all.u32LvtTimer),
165	SSMFIELD_ENTRY(X2APICPAGE, lvt_thermal.all.u32LvtThermal),
166	SSMFIELD_ENTRY(X2APICPAGE, lvt_perf.all.u32LvtPerf),
167	SSMFIELD_ENTRY(X2APICPAGE, lvt_lint0.all.u32LvtLint0),
168	SSMFIELD_ENTRY(X2APICPAGE, lvt_lint1.all.u32LvtLint1),
169	SSMFIELD_ENTRY(X2APICPAGE, lvt_error.all.u32LvtError),
170	SSMFIELD_ENTRY(X2APICPAGE, timer_icr.u32InitialCount),
171	SSMFIELD_ENTRY(X2APICPAGE, timer_ccr.u32CurrentCount),
172	SSMFIELD_ENTRY(X2APICPAGE, timer_dcr.all.u32DivideValue),
173	SSMFIELD_ENTRY_TERM()
174	};
175
176
177	/**
178	* Sets the CPUID feature bits for the APIC mode.
179	*
180	* @param pVM The cross context VM structure.
181	* @param enmMode The APIC mode.
182	*/
183	static void apicR3SetCpuIdFeatureLevel(PVM pVM, PDMAPICMODE enmMode)
184	{
185	switch (enmMode)
186	{
187	case PDMAPICMODE_NONE:
188	CPUMR3ClearGuestCpuIdFeature(pVM, CPUMCPUIDFEATURE_X2APIC);
189	CPUMR3ClearGuestCpuIdFeature(pVM, CPUMCPUIDFEATURE_APIC);
190	break;
191
192	case PDMAPICMODE_APIC:
193	CPUMR3ClearGuestCpuIdFeature(pVM, CPUMCPUIDFEATURE_X2APIC);
194	CPUMR3SetGuestCpuIdFeature(pVM, CPUMCPUIDFEATURE_APIC);
195	break;
196
197	case PDMAPICMODE_X2APIC:
198	CPUMR3SetGuestCpuIdFeature(pVM, CPUMCPUIDFEATURE_APIC);
199	CPUMR3SetGuestCpuIdFeature(pVM, CPUMCPUIDFEATURE_X2APIC);
200	break;
201
202	default:
203	AssertMsgFailed(("Unknown/invalid APIC mode: %d\n", (int)enmMode));
204	}
205	}
206
207
208	/**
209	* Receives an INIT IPI.
210	*
211	* @param pVCpu The cross context virtual CPU structure.
212	*/
213	VMMR3_INT_DECL(void) APICR3InitIpi(PVMCPU pVCpu)
214	{
215	VMCPU_ASSERT_EMT(pVCpu);
216	LogFlow(("APIC%u: APICR3InitIpi\n", pVCpu->idCpu));
217	apicInitIpi(pVCpu);
218	}
219
220
221	/**
222	* Sets whether Hyper-V compatibility mode (MSR interface) is enabled or not.
223	*
224	* This mode is a hybrid of xAPIC and x2APIC modes, some caveats:
225	* 1. MSRs are used even ones that are missing (illegal) in x2APIC like DFR.
226	* 2. A single ICR is used by the guest to send IPIs rather than 2 ICR writes.
227	* 3. It is unclear what the behaviour will be when invalid bits are set,
228	* currently we follow x2APIC behaviour of causing a \#GP.
229	*
230	* @param pVM The cross context VM structure.
231	* @param fHyperVCompatMode Whether the compatibility mode is enabled.
232	*/
233	VMMR3_INT_DECL(void) APICR3HvSetCompatMode(PVM pVM, bool fHyperVCompatMode)
234	{
235	Assert(pVM);
236	PAPIC pApic = VM_TO_APIC(pVM);
237	pApic->fHyperVCompatMode = fHyperVCompatMode;
238
239	if (fHyperVCompatMode)
240	LogRel(("APIC: Enabling Hyper-V x2APIC compatibility mode\n"));
241
242	int rc = CPUMR3MsrRangesInsert(pVM, &g_MsrRange_x2Apic);
243	AssertLogRelRC(rc);
244	}
245
246
247	/**
248	* Helper for dumping an APIC 256-bit sparse register.
249	*
250	* @param pApicReg The APIC 256-bit spare register.
251	* @param pHlp The debug output helper.
252	*/
253	static void apicR3DbgInfo256BitReg(volatile const XAPIC256BITREG *pApicReg, PCDBGFINFOHLP pHlp)
254	{
255	ssize_t const cFragments = RT_ELEMENTS(pApicReg->u);
256	unsigned const cBitsPerFragment = sizeof(pApicReg->u[0].u32Reg) * 8;
257	XAPIC256BITREG ApicReg;
258	RT_ZERO(ApicReg);
259
260	pHlp->pfnPrintf(pHlp, " ");
261	for (ssize_t i = cFragments - 1; i >= 0; i--)
262	{
263	uint32_t const uFragment = pApicReg->u[i].u32Reg;
264	ApicReg.u[i].u32Reg = uFragment;
265	pHlp->pfnPrintf(pHlp, "%08x", uFragment);
266	}
267	pHlp->pfnPrintf(pHlp, "\n");
268
269	uint32_t cPending = 0;
270	pHlp->pfnPrintf(pHlp, " Pending:");
271	for (ssize_t i = cFragments - 1; i >= 0; i--)
272	{
273	uint32_t uFragment = ApicReg.u[i].u32Reg;
274	if (uFragment)
275	{
276	do
277	{
278	unsigned idxSetBit = ASMBitLastSetU32(uFragment);
279	--idxSetBit;
280	ASMBitClear(&uFragment, idxSetBit);
281
282	idxSetBit += (i * cBitsPerFragment);
283	pHlp->pfnPrintf(pHlp, " %#02x", idxSetBit);
284	++cPending;
285	} while (uFragment);
286	}
287	}
288	if (!cPending)
289	pHlp->pfnPrintf(pHlp, " None");
290	pHlp->pfnPrintf(pHlp, "\n");
291	}
292
293
294	/**
295	* Helper for dumping an APIC pending-interrupt bitmap.
296	*
297	* @param pApicPib The pending-interrupt bitmap.
298	* @param pHlp The debug output helper.
299	*/
300	static void apicR3DbgInfoPib(PCAPICPIB pApicPib, PCDBGFINFOHLP pHlp)
301	{
302	/* Copy the pending-interrupt bitmap as an APIC 256-bit sparse register. */
303	XAPIC256BITREG ApicReg;
304	RT_ZERO(ApicReg);
305	ssize_t const cFragmentsDst = RT_ELEMENTS(ApicReg.u);
306	ssize_t const cFragmentsSrc = RT_ELEMENTS(pApicPib->au64VectorBitmap);
307	AssertCompile(RT_ELEMENTS(ApicReg.u) == 2 * RT_ELEMENTS(pApicPib->au64VectorBitmap));
308	for (ssize_t idxPib = cFragmentsSrc - 1, idxReg = cFragmentsDst - 1; idxPib >= 0; idxPib--, idxReg -= 2)
309	{
310	uint64_t const uFragment = pApicPib->au64VectorBitmap[idxPib];
311	uint32_t const uFragmentLo = RT_LO_U32(uFragment);
312	uint32_t const uFragmentHi = RT_HI_U32(uFragment);
313	ApicReg.u[idxReg].u32Reg = uFragmentHi;
314	ApicReg.u[idxReg - 1].u32Reg = uFragmentLo;
315	}
316
317	/* Dump it. */
318	apicR3DbgInfo256BitReg(&ApicReg, pHlp);
319	}
320
321
322	/**
323	* Dumps basic APIC state.
324	*
325	* @param pVM The cross context VM structure.
326	* @param pHlp The info helpers.
327	* @param pszArgs Arguments, ignored.
328	*/
329	static DECLCALLBACK(void) apicR3Info(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs)
330	{
331	NOREF(pszArgs);
332	PVMCPU pVCpu = VMMGetCpu(pVM);
333	if (!pVCpu)
334	pVCpu = pVM->apCpusR3[0];
335
336	PCAPICCPU pApicCpu = VMCPU_TO_APICCPU(pVCpu);
337	PCXAPICPAGE pXApicPage = VMCPU_TO_CXAPICPAGE(pVCpu);
338	PCX2APICPAGE pX2ApicPage = VMCPU_TO_CX2APICPAGE(pVCpu);
339
340	uint64_t const uBaseMsr = pApicCpu->uApicBaseMsr;
341	APICMODE const enmMode = apicGetMode(uBaseMsr);
342	bool const fX2ApicMode = XAPIC_IN_X2APIC_MODE(pVCpu);
343
344	pHlp->pfnPrintf(pHlp, "APIC%u:\n", pVCpu->idCpu);
345	pHlp->pfnPrintf(pHlp, " APIC Base MSR = %#RX64 (Addr=%#RX64)\n", uBaseMsr,
346	MSR_IA32_APICBASE_GET_ADDR(uBaseMsr));
347	pHlp->pfnPrintf(pHlp, " Mode = %u (%s)\n", enmMode, apicGetModeName(enmMode));
348	if (fX2ApicMode)
349	{
350	pHlp->pfnPrintf(pHlp, " APIC ID = %u (%#x)\n", pX2ApicPage->id.u32ApicId,
351	pX2ApicPage->id.u32ApicId);
352	}
353	else
354	pHlp->pfnPrintf(pHlp, " APIC ID = %u (%#x)\n", pXApicPage->id.u8ApicId, pXApicPage->id.u8ApicId);
355	pHlp->pfnPrintf(pHlp, " Version = %#x\n", pXApicPage->version.all.u32Version);
356	pHlp->pfnPrintf(pHlp, " APIC Version = %#x\n", pXApicPage->version.u.u8Version);
357	pHlp->pfnPrintf(pHlp, " Max LVT entry index (0..N) = %u\n", pXApicPage->version.u.u8MaxLvtEntry);
358	pHlp->pfnPrintf(pHlp, " EOI Broadcast supression = %RTbool\n", pXApicPage->version.u.fEoiBroadcastSupression);
359	if (!fX2ApicMode)
360	pHlp->pfnPrintf(pHlp, " APR = %u (%#x)\n", pXApicPage->apr.u8Apr, pXApicPage->apr.u8Apr);
361	pHlp->pfnPrintf(pHlp, " TPR = %u (%#x)\n", pXApicPage->tpr.u8Tpr, pXApicPage->tpr.u8Tpr);
362	pHlp->pfnPrintf(pHlp, " Task-priority class = %#x\n", XAPIC_TPR_GET_TP(pXApicPage->tpr.u8Tpr) >> 4);
363	pHlp->pfnPrintf(pHlp, " Task-priority subclass = %#x\n", XAPIC_TPR_GET_TP_SUBCLASS(pXApicPage->tpr.u8Tpr));
364	pHlp->pfnPrintf(pHlp, " PPR = %u (%#x)\n", pXApicPage->ppr.u8Ppr, pXApicPage->ppr.u8Ppr);
365	pHlp->pfnPrintf(pHlp, " Processor-priority class = %#x\n", XAPIC_PPR_GET_PP(pXApicPage->ppr.u8Ppr) >> 4);
366	pHlp->pfnPrintf(pHlp, " Processor-priority subclass = %#x\n", XAPIC_PPR_GET_PP_SUBCLASS(pXApicPage->ppr.u8Ppr));
367	if (!fX2ApicMode)
368	pHlp->pfnPrintf(pHlp, " RRD = %u (%#x)\n", pXApicPage->rrd.u32Rrd, pXApicPage->rrd.u32Rrd);
369	pHlp->pfnPrintf(pHlp, " LDR = %#x\n", pXApicPage->ldr.all.u32Ldr);
370	pHlp->pfnPrintf(pHlp, " Logical APIC ID = %#x\n", fX2ApicMode ? pX2ApicPage->ldr.u32LogicalApicId
371	: pXApicPage->ldr.u.u8LogicalApicId);
372	if (!fX2ApicMode)
373	{
374	pHlp->pfnPrintf(pHlp, " DFR = %#x\n", pXApicPage->dfr.all.u32Dfr);
375	pHlp->pfnPrintf(pHlp, " Model = %#x (%s)\n", pXApicPage->dfr.u.u4Model,
376	apicGetDestFormatName((XAPICDESTFORMAT)pXApicPage->dfr.u.u4Model));
377	}
378	pHlp->pfnPrintf(pHlp, " SVR = %#x\n", pXApicPage->svr.all.u32Svr);
379	pHlp->pfnPrintf(pHlp, " Vector = %u (%#x)\n", pXApicPage->svr.u.u8SpuriousVector,
380	pXApicPage->svr.u.u8SpuriousVector);
381	pHlp->pfnPrintf(pHlp, " Software Enabled = %RTbool\n", RT_BOOL(pXApicPage->svr.u.fApicSoftwareEnable));
382	pHlp->pfnPrintf(pHlp, " Supress EOI broadcast = %RTbool\n", RT_BOOL(pXApicPage->svr.u.fSupressEoiBroadcast));
383	pHlp->pfnPrintf(pHlp, " ISR\n");
384	apicR3DbgInfo256BitReg(&pXApicPage->isr, pHlp);
385	pHlp->pfnPrintf(pHlp, " TMR\n");
386	apicR3DbgInfo256BitReg(&pXApicPage->tmr, pHlp);
387	pHlp->pfnPrintf(pHlp, " IRR\n");
388	apicR3DbgInfo256BitReg(&pXApicPage->irr, pHlp);
389	pHlp->pfnPrintf(pHlp, " PIB\n");
390	apicR3DbgInfoPib((PCAPICPIB)pApicCpu->pvApicPibR3, pHlp);
391	pHlp->pfnPrintf(pHlp, " Level PIB\n");
392	apicR3DbgInfoPib(&pApicCpu->ApicPibLevel, pHlp);
393	pHlp->pfnPrintf(pHlp, " ESR Internal = %#x\n", pApicCpu->uEsrInternal);
394	pHlp->pfnPrintf(pHlp, " ESR = %#x\n", pXApicPage->esr.all.u32Errors);
395	pHlp->pfnPrintf(pHlp, " Redirectable IPI = %RTbool\n", pXApicPage->esr.u.fRedirectableIpi);
396	pHlp->pfnPrintf(pHlp, " Send Illegal Vector = %RTbool\n", pXApicPage->esr.u.fSendIllegalVector);
397	pHlp->pfnPrintf(pHlp, " Recv Illegal Vector = %RTbool\n", pXApicPage->esr.u.fRcvdIllegalVector);
398	pHlp->pfnPrintf(pHlp, " Illegal Register Address = %RTbool\n", pXApicPage->esr.u.fIllegalRegAddr);
399	pHlp->pfnPrintf(pHlp, " ICR Low = %#x\n", pXApicPage->icr_lo.all.u32IcrLo);
400	pHlp->pfnPrintf(pHlp, " Vector = %u (%#x)\n", pXApicPage->icr_lo.u.u8Vector,
401	pXApicPage->icr_lo.u.u8Vector);
402	pHlp->pfnPrintf(pHlp, " Delivery Mode = %#x (%s)\n", pXApicPage->icr_lo.u.u3DeliveryMode,
403	apicGetDeliveryModeName((XAPICDELIVERYMODE)pXApicPage->icr_lo.u.u3DeliveryMode));
404	pHlp->pfnPrintf(pHlp, " Destination Mode = %#x (%s)\n", pXApicPage->icr_lo.u.u1DestMode,
405	apicGetDestModeName((XAPICDESTMODE)pXApicPage->icr_lo.u.u1DestMode));
406	if (!fX2ApicMode)
407	pHlp->pfnPrintf(pHlp, " Delivery Status = %u\n", pXApicPage->icr_lo.u.u1DeliveryStatus);
408	pHlp->pfnPrintf(pHlp, " Level = %u\n", pXApicPage->icr_lo.u.u1Level);
409	pHlp->pfnPrintf(pHlp, " Trigger Mode = %u (%s)\n", pXApicPage->icr_lo.u.u1TriggerMode,
410	apicGetTriggerModeName((XAPICTRIGGERMODE)pXApicPage->icr_lo.u.u1TriggerMode));
411	pHlp->pfnPrintf(pHlp, " Destination shorthand = %#x (%s)\n", pXApicPage->icr_lo.u.u2DestShorthand,
412	apicGetDestShorthandName((XAPICDESTSHORTHAND)pXApicPage->icr_lo.u.u2DestShorthand));
413	pHlp->pfnPrintf(pHlp, " ICR High = %#x\n", pXApicPage->icr_hi.all.u32IcrHi);
414	pHlp->pfnPrintf(pHlp, " Destination field/mask = %#x\n", fX2ApicMode ? pX2ApicPage->icr_hi.u32IcrHi
415	: pXApicPage->icr_hi.u.u8Dest);
416	}
417
418
419	/**
420	* Helper for dumping the LVT timer.
421	*
422	* @param pVCpu The cross context virtual CPU structure.
423	* @param pHlp The debug output helper.
424	*/
425	static void apicR3InfoLvtTimer(PVMCPU pVCpu, PCDBGFINFOHLP pHlp)
426	{
427	PCXAPICPAGE pXApicPage = VMCPU_TO_CXAPICPAGE(pVCpu);
428	uint32_t const uLvtTimer = pXApicPage->lvt_timer.all.u32LvtTimer;
429	pHlp->pfnPrintf(pHlp, "LVT Timer = %#RX32\n", uLvtTimer);
430	pHlp->pfnPrintf(pHlp, " Vector = %u (%#x)\n", pXApicPage->lvt_timer.u.u8Vector, pXApicPage->lvt_timer.u.u8Vector);
431	pHlp->pfnPrintf(pHlp, " Delivery status = %u\n", pXApicPage->lvt_timer.u.u1DeliveryStatus);
432	pHlp->pfnPrintf(pHlp, " Masked = %RTbool\n", XAPIC_LVT_IS_MASKED(uLvtTimer));
433	pHlp->pfnPrintf(pHlp, " Timer Mode = %#x (%s)\n", pXApicPage->lvt_timer.u.u2TimerMode,
434	apicGetTimerModeName((XAPICTIMERMODE)pXApicPage->lvt_timer.u.u2TimerMode));
435	}
436
437
438	/**
439	* Dumps APIC Local Vector Table (LVT) information.
440	*
441	* @param pVM The cross context VM structure.
442	* @param pHlp The info helpers.
443	* @param pszArgs Arguments, ignored.
444	*/
445	static DECLCALLBACK(void) apicR3InfoLvt(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs)
446	{
447	NOREF(pszArgs);
448	PVMCPU pVCpu = VMMGetCpu(pVM);
449	if (!pVCpu)
450	pVCpu = pVM->apCpusR3[0];
451
452	PCXAPICPAGE pXApicPage = VMCPU_TO_CXAPICPAGE(pVCpu);
453
454	/*
455	* Delivery modes available in the LVT entries. They're different (more reserved stuff) from the
456	* ICR delivery modes and hence we don't use apicGetDeliveryMode but mostly because we want small,
457	* fixed-length strings to fit our formatting needs here.
458	*/
459	static const char * const s_apszLvtDeliveryModes[] =
460	{
461	"Fixed ",
462	"Rsvd ",
463	"SMI ",
464	"Rsvd ",
465	"NMI ",
466	"INIT ",
467	"Rsvd ",
468	"ExtINT"
469	};
470	/* Delivery Status. */
471	static const char * const s_apszLvtDeliveryStatus[] =
472	{
473	"Idle",
474	"Pend"
475	};
476	const char *pszNotApplicable = "";
477
478	pHlp->pfnPrintf(pHlp, "VCPU[%u] APIC Local Vector Table (LVT):\n", pVCpu->idCpu);
479	pHlp->pfnPrintf(pHlp, "lvt timermode mask trigger rirr polarity dlvr_st dlvr_mode vector\n");
480	/* Timer. */
481	{
482	/* Timer modes. */
483	static const char * const s_apszLvtTimerModes[] =
484	{
485	"One-shot ",
486	"Periodic ",
487	"TSC-dline"
488	};
489	const uint32_t uLvtTimer = pXApicPage->lvt_timer.all.u32LvtTimer;
490	const XAPICTIMERMODE enmTimerMode = XAPIC_LVT_GET_TIMER_MODE(uLvtTimer);
491	const char *pszTimerMode = s_apszLvtTimerModes[enmTimerMode];
492	const uint8_t uMask = XAPIC_LVT_IS_MASKED(uLvtTimer);
493	const uint8_t uDeliveryStatus = uLvtTimer & XAPIC_LVT_DELIVERY_STATUS;
494	const char *pszDeliveryStatus = s_apszLvtDeliveryStatus[uDeliveryStatus];
495	const uint8_t uVector = XAPIC_LVT_GET_VECTOR(uLvtTimer);
496
497	pHlp->pfnPrintf(pHlp, "%-7s %9s %u %5s %1s %8s %4s %6s %3u (%#x)\n",
498	"Timer",
499	pszTimerMode,
500	uMask,
501	pszNotApplicable, /* TriggerMode */
502	pszNotApplicable, /* Remote IRR */
503	pszNotApplicable, /* Polarity */
504	pszDeliveryStatus,
505	pszNotApplicable, /* Delivery Mode */
506	uVector,
507	uVector);
508	}
509
510	#if XAPIC_HARDWARE_VERSION == XAPIC_HARDWARE_VERSION_P4
511	/* Thermal sensor. */
512	{
513	uint32_t const uLvtThermal = pXApicPage->lvt_thermal.all.u32LvtThermal;
514	const uint8_t uMask = XAPIC_LVT_IS_MASKED(uLvtThermal);
515	const uint8_t uDeliveryStatus = uLvtThermal & XAPIC_LVT_DELIVERY_STATUS;
516	const char *pszDeliveryStatus = s_apszLvtDeliveryStatus[uDeliveryStatus];
517	const XAPICDELIVERYMODE enmDeliveryMode = XAPIC_LVT_GET_DELIVERY_MODE(uLvtThermal);
518	const char *pszDeliveryMode = s_apszLvtDeliveryModes[enmDeliveryMode];
519	const uint8_t uVector = XAPIC_LVT_GET_VECTOR(uLvtThermal);
520
521	pHlp->pfnPrintf(pHlp, "%-7s %9s %u %5s %1s %8s %4s %6s %3u (%#x)\n",
522	"Thermal",
523	pszNotApplicable, /* Timer mode */
524	uMask,
525	pszNotApplicable, /* TriggerMode */
526	pszNotApplicable, /* Remote IRR */
527	pszNotApplicable, /* Polarity */
528	pszDeliveryStatus,
529	pszDeliveryMode,
530	uVector,
531	uVector);
532	}
533	#endif
534
535	/* Performance Monitor Counters. */
536	{
537	uint32_t const uLvtPerf = pXApicPage->lvt_thermal.all.u32LvtThermal;
538	const uint8_t uMask = XAPIC_LVT_IS_MASKED(uLvtPerf);
539	const uint8_t uDeliveryStatus = uLvtPerf & XAPIC_LVT_DELIVERY_STATUS;
540	const char *pszDeliveryStatus = s_apszLvtDeliveryStatus[uDeliveryStatus];
541	const XAPICDELIVERYMODE enmDeliveryMode = XAPIC_LVT_GET_DELIVERY_MODE(uLvtPerf);
542	const char *pszDeliveryMode = s_apszLvtDeliveryModes[enmDeliveryMode];
543	const uint8_t uVector = XAPIC_LVT_GET_VECTOR(uLvtPerf);
544
545	pHlp->pfnPrintf(pHlp, "%-7s %9s %u %5s %1s %8s %4s %6s %3u (%#x)\n",
546	"Perf",
547	pszNotApplicable, /* Timer mode */
548	uMask,
549	pszNotApplicable, /* TriggerMode */
550	pszNotApplicable, /* Remote IRR */
551	pszNotApplicable, /* Polarity */
552	pszDeliveryStatus,
553	pszDeliveryMode,
554	uVector,
555	uVector);
556	}
557
558	/* LINT0, LINT1. */
559	{
560	/* LINTx name. */
561	static const char * const s_apszLvtLint[] =
562	{
563	"LINT0",
564	"LINT1"
565	};
566	/* Trigger mode. */
567	static const char * const s_apszLvtTriggerModes[] =
568	{
569	"Edge ",
570	"Level"
571	};
572	/* Polarity. */
573	static const char * const s_apszLvtPolarity[] =
574	{
575	"ActiveHi",
576	"ActiveLo"
577	};
578
579	uint32_t aLvtLint[2];
580	aLvtLint[0] = pXApicPage->lvt_lint0.all.u32LvtLint0;
581	aLvtLint[1] = pXApicPage->lvt_lint1.all.u32LvtLint1;
582	for (size_t i = 0; i < RT_ELEMENTS(aLvtLint); i++)
583	{
584	uint32_t const uLvtLint = aLvtLint[i];
585	const char *pszLint = s_apszLvtLint[i];
586	const uint8_t uMask = XAPIC_LVT_IS_MASKED(uLvtLint);
587	const XAPICTRIGGERMODE enmTriggerMode = XAPIC_LVT_GET_TRIGGER_MODE(uLvtLint);
588	const char *pszTriggerMode = s_apszLvtTriggerModes[enmTriggerMode];
589	const uint8_t uRemoteIrr = XAPIC_LVT_GET_REMOTE_IRR(uLvtLint);
590	const uint8_t uPolarity = XAPIC_LVT_GET_POLARITY(uLvtLint);
591	const char *pszPolarity = s_apszLvtPolarity[uPolarity];
592	const uint8_t uDeliveryStatus = uLvtLint & XAPIC_LVT_DELIVERY_STATUS;
593	const char *pszDeliveryStatus = s_apszLvtDeliveryStatus[uDeliveryStatus];
594	const XAPICDELIVERYMODE enmDeliveryMode = XAPIC_LVT_GET_DELIVERY_MODE(uLvtLint);
595	const char *pszDeliveryMode = s_apszLvtDeliveryModes[enmDeliveryMode];
596	const uint8_t uVector = XAPIC_LVT_GET_VECTOR(uLvtLint);
597
598	pHlp->pfnPrintf(pHlp, "%-7s %9s %u %5s %u %8s %4s %6s %3u (%#x)\n",
599	pszLint,
600	pszNotApplicable, /* Timer mode */
601	uMask,
602	pszTriggerMode,
603	uRemoteIrr,
604	pszPolarity,
605	pszDeliveryStatus,
606	pszDeliveryMode,
607	uVector,
608	uVector);
609	}
610	}
611
612	/* Error. */
613	{
614	uint32_t const uLvtError = pXApicPage->lvt_thermal.all.u32LvtThermal;
615	const uint8_t uMask = XAPIC_LVT_IS_MASKED(uLvtError);
616	const uint8_t uDeliveryStatus = uLvtError & XAPIC_LVT_DELIVERY_STATUS;
617	const char *pszDeliveryStatus = s_apszLvtDeliveryStatus[uDeliveryStatus];
618	const XAPICDELIVERYMODE enmDeliveryMode = XAPIC_LVT_GET_DELIVERY_MODE(uLvtError);
619	const char *pszDeliveryMode = s_apszLvtDeliveryModes[enmDeliveryMode];
620	const uint8_t uVector = XAPIC_LVT_GET_VECTOR(uLvtError);
621
622	pHlp->pfnPrintf(pHlp, "%-7s %9s %u %5s %1s %8s %4s %6s %3u (%#x)\n",
623	"Error",
624	pszNotApplicable, /* Timer mode */
625	uMask,
626	pszNotApplicable, /* TriggerMode */
627	pszNotApplicable, /* Remote IRR */
628	pszNotApplicable, /* Polarity */
629	pszDeliveryStatus,
630	pszDeliveryMode,
631	uVector,
632	uVector);
633	}
634	}
635
636
637	/**
638	* Dumps the APIC timer information.
639	*
640	* @param pVM The cross context VM structure.
641	* @param pHlp The info helpers.
642	* @param pszArgs Arguments, ignored.
643	*/
644	static DECLCALLBACK(void) apicR3InfoTimer(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs)
645	{
646	NOREF(pszArgs);
647	PVMCPU pVCpu = VMMGetCpu(pVM);
648	if (!pVCpu)
649	pVCpu = pVM->apCpusR3[0];
650
651	PCXAPICPAGE pXApicPage = VMCPU_TO_CXAPICPAGE(pVCpu);
652	PCAPICCPU pApicCpu = VMCPU_TO_APICCPU(pVCpu);
653
654	pHlp->pfnPrintf(pHlp, "VCPU[%u] Local APIC timer:\n", pVCpu->idCpu);
655	pHlp->pfnPrintf(pHlp, " ICR = %#RX32\n", pXApicPage->timer_icr.u32InitialCount);
656	pHlp->pfnPrintf(pHlp, " CCR = %#RX32\n", pXApicPage->timer_ccr.u32CurrentCount);
657	pHlp->pfnPrintf(pHlp, " DCR = %#RX32\n", pXApicPage->timer_dcr.all.u32DivideValue);
658	pHlp->pfnPrintf(pHlp, " Timer shift = %#x\n", apicGetTimerShift(pXApicPage));
659	pHlp->pfnPrintf(pHlp, " Timer initial TS = %#RU64\n", pApicCpu->u64TimerInitial);
660	apicR3InfoLvtTimer(pVCpu, pHlp);
661	}
662
663
664	#ifdef APIC_FUZZY_SSM_COMPAT_TEST
665
666	/**
667	* Reads a 32-bit register at a specified offset.
668	*
669	* @returns The value at the specified offset.
670	* @param pXApicPage The xAPIC page.
671	* @param offReg The offset of the register being read.
672	*
673	* @remarks Duplicate of apicReadRaw32()!
674	*/
675	static uint32_t apicR3ReadRawR32(PCXAPICPAGE pXApicPage, uint16_t offReg)
676	{
677	Assert(offReg < sizeof(*pXApicPage) - sizeof(uint32_t));
678	uint8_t const pbXApic = (const uint8_t )pXApicPage;
679	uint32_t const uValue = (const uint32_t )(pbXApic + offReg);
680	return uValue;
681	}
682
683
684	/**
685	* Helper for dumping per-VCPU APIC state to the release logger.
686	*
687	* This is primarily concerned about the APIC state relevant for saved-states.
688	*
689	* @param pVCpu The cross context virtual CPU structure.
690	* @param pszPrefix A caller supplied prefix before dumping the state.
691	* @param uVersion Data layout version.
692	*/
693	static void apicR3DumpState(PVMCPU pVCpu, const char *pszPrefix, uint32_t uVersion)
694	{
695	PCAPICCPU pApicCpu = VMCPU_TO_APICCPU(pVCpu);
696
697	LogRel(("APIC%u: %s (version %u):\n", pVCpu->idCpu, pszPrefix, uVersion));
698
699	switch (uVersion)
700	{
701	case APIC_SAVED_STATE_VERSION:
702	case APIC_SAVED_STATE_VERSION_VBOX_51_BETA2:
703	{
704	/* The auxiliary state. */
705	LogRel(("APIC%u: uApicBaseMsr = %#RX64\n", pVCpu->idCpu, pApicCpu->uApicBaseMsr));
706	LogRel(("APIC%u: uEsrInternal = %#RX64\n", pVCpu->idCpu, pApicCpu->uEsrInternal));
707
708	/* The timer. */
709	LogRel(("APIC%u: u64TimerInitial = %#RU64\n", pVCpu->idCpu, pApicCpu->u64TimerInitial));
710	LogRel(("APIC%u: uHintedTimerInitialCount = %#RU64\n", pVCpu->idCpu, pApicCpu->uHintedTimerInitialCount));
711	LogRel(("APIC%u: uHintedTimerShift = %#RU64\n", pVCpu->idCpu, pApicCpu->uHintedTimerShift));
712
713	PCXAPICPAGE pXApicPage = VMCPU_TO_CXAPICPAGE(pVCpu);
714	LogRel(("APIC%u: uTimerICR = %#RX32\n", pVCpu->idCpu, pXApicPage->timer_icr.u32InitialCount));
715	LogRel(("APIC%u: uTimerCCR = %#RX32\n", pVCpu->idCpu, pXApicPage->timer_ccr.u32CurrentCount));
716
717	/* The PIBs. */
718	LogRel(("APIC%u: Edge PIB : %.*Rhxs\n", pVCpu->idCpu, sizeof(APICPIB), pApicCpu->pvApicPibR3));
719	LogRel(("APIC%u: Level PIB: %.*Rhxs\n", pVCpu->idCpu, sizeof(APICPIB), &pApicCpu->ApicPibLevel));
720
721	/* The LINT0, LINT1 interrupt line active states. */
722	LogRel(("APIC%u: fActiveLint0 = %RTbool\n", pVCpu->idCpu, pApicCpu->fActiveLint0));
723	LogRel(("APIC%u: fActiveLint1 = %RTbool\n", pVCpu->idCpu, pApicCpu->fActiveLint1));
724
725	/* The APIC page. */
726	LogRel(("APIC%u: APIC page: %.*Rhxs\n", pVCpu->idCpu, sizeof(XAPICPAGE), pApicCpu->pvApicPageR3));
727	break;
728	}
729
730	case APIC_SAVED_STATE_VERSION_VBOX_50:
731	case APIC_SAVED_STATE_VERSION_VBOX_30:
732	case APIC_SAVED_STATE_VERSION_ANCIENT:
733	{
734	PCXAPICPAGE pXApicPage = VMCPU_TO_CXAPICPAGE(pVCpu);
735	LogRel(("APIC%u: uApicBaseMsr = %#RX32\n", pVCpu->idCpu, RT_LO_U32(pApicCpu->uApicBaseMsr)));
736	LogRel(("APIC%u: uId = %#RX32\n", pVCpu->idCpu, pXApicPage->id.u8ApicId));
737	LogRel(("APIC%u: uPhysId = N/A\n", pVCpu->idCpu));
738	LogRel(("APIC%u: uArbId = N/A\n", pVCpu->idCpu));
739	LogRel(("APIC%u: uTpr = %#RX32\n", pVCpu->idCpu, pXApicPage->tpr.u8Tpr));
740	LogRel(("APIC%u: uSvr = %#RX32\n", pVCpu->idCpu, pXApicPage->svr.all.u32Svr));
741	LogRel(("APIC%u: uLdr = %#x\n", pVCpu->idCpu, pXApicPage->ldr.all.u32Ldr));
742	LogRel(("APIC%u: uDfr = %#x\n", pVCpu->idCpu, pXApicPage->dfr.all.u32Dfr));
743
744	for (size_t i = 0; i < 8; i++)
745	{
746	LogRel(("APIC%u: Isr[%u].u32Reg = %#RX32\n", pVCpu->idCpu, i, pXApicPage->isr.u[i].u32Reg));
747	LogRel(("APIC%u: Tmr[%u].u32Reg = %#RX32\n", pVCpu->idCpu, i, pXApicPage->tmr.u[i].u32Reg));
748	LogRel(("APIC%u: Irr[%u].u32Reg = %#RX32\n", pVCpu->idCpu, i, pXApicPage->irr.u[i].u32Reg));
749	}
750
751	for (size_t i = 0; i < XAPIC_MAX_LVT_ENTRIES_P4; i++)
752	{
753	uint16_t const offReg = XAPIC_OFF_LVT_START + (i << 4);
754	LogRel(("APIC%u: Lvt[%u].u32Reg = %#RX32\n", pVCpu->idCpu, i, apicR3ReadRawR32(pXApicPage, offReg)));
755	}
756
757	LogRel(("APIC%u: uEsr = %#RX32\n", pVCpu->idCpu, pXApicPage->esr.all.u32Errors));
758	LogRel(("APIC%u: uIcr_Lo = %#RX32\n", pVCpu->idCpu, pXApicPage->icr_lo.all.u32IcrLo));
759	LogRel(("APIC%u: uIcr_Hi = %#RX32\n", pVCpu->idCpu, pXApicPage->icr_hi.all.u32IcrHi));
760	LogRel(("APIC%u: uTimerDcr = %#RX32\n", pVCpu->idCpu, pXApicPage->timer_dcr.all.u32DivideValue));
761	LogRel(("APIC%u: uCountShift = %#RX32\n", pVCpu->idCpu, apicGetTimerShift(pXApicPage)));
762	LogRel(("APIC%u: uInitialCount = %#RX32\n", pVCpu->idCpu, pXApicPage->timer_icr.u32InitialCount));
763	LogRel(("APIC%u: u64InitialCountLoadTime = %#RX64\n", pVCpu->idCpu, pApicCpu->u64TimerInitial));
764	LogRel(("APIC%u: u64NextTime / TimerCCR = %#RX64\n", pVCpu->idCpu, pXApicPage->timer_ccr.u32CurrentCount));
765	break;
766	}
767
768	default:
769	{
770	LogRel(("APIC: apicR3DumpState: Invalid/unrecognized saved-state version %u (%#x)\n", uVersion, uVersion));
771	break;
772	}
773	}
774	}
775
776	#endif /* APIC_FUZZY_SSM_COMPAT_TEST */
777
778	/**
779	* Worker for saving per-VM APIC data.
780	*
781	* @returns VBox status code.
782	* @param pDevIns The device instance.
783	* @param pVM The cross context VM structure.
784	* @param pSSM The SSM handle.
785	*/
786	static int apicR3SaveVMData(PPDMDEVINS pDevIns, PVM pVM, PSSMHANDLE pSSM)
787	{
788	PCPDMDEVHLPR3 pHlp = pDevIns->pHlpR3;
789	PAPIC pApic = VM_TO_APIC(pVM);
790	pHlp->pfnSSMPutU32(pSSM, pVM->cCpus);
791	pHlp->pfnSSMPutBool(pSSM, pApic->fIoApicPresent);
792	return pHlp->pfnSSMPutU32(pSSM, pApic->enmMaxMode);
793	}
794
795
796	/**
797	* Worker for loading per-VM APIC data.
798	*
799	* @returns VBox status code.
800	* @param pDevIns The device instance.
801	* @param pVM The cross context VM structure.
802	* @param pSSM The SSM handle.
803	*/
804	static int apicR3LoadVMData(PPDMDEVINS pDevIns, PVM pVM, PSSMHANDLE pSSM)
805	{
806	PAPIC pApic = VM_TO_APIC(pVM);
807	PCPDMDEVHLPR3 pHlp = pDevIns->pHlpR3;
808
809	/* Load and verify number of CPUs. */
810	uint32_t cCpus;
811	int rc = pHlp->pfnSSMGetU32(pSSM, &cCpus);
812	AssertRCReturn(rc, rc);
813	if (cCpus != pVM->cCpus)
814	return pHlp->pfnSSMSetCfgError(pSSM, RT_SRC_POS, N_("Config mismatch - cCpus: saved=%u config=%u"), cCpus, pVM->cCpus);
815
816	/* Load and verify I/O APIC presence. */
817	bool fIoApicPresent;
818	rc = pHlp->pfnSSMGetBool(pSSM, &fIoApicPresent);
819	AssertRCReturn(rc, rc);
820	if (fIoApicPresent != pApic->fIoApicPresent)
821	return pHlp->pfnSSMSetCfgError(pSSM, RT_SRC_POS, N_("Config mismatch - fIoApicPresent: saved=%RTbool config=%RTbool"),
822	fIoApicPresent, pApic->fIoApicPresent);
823
824	/* Load and verify configured max APIC mode. */
825	uint32_t uSavedMaxApicMode;
826	rc = pHlp->pfnSSMGetU32(pSSM, &uSavedMaxApicMode);
827	AssertRCReturn(rc, rc);
828	if (uSavedMaxApicMode != (uint32_t)pApic->enmMaxMode)
829	return pHlp->pfnSSMSetCfgError(pSSM, RT_SRC_POS, N_("Config mismatch - uApicMode: saved=%u config=%u"),
830	uSavedMaxApicMode, pApic->enmMaxMode);
831	return VINF_SUCCESS;
832	}
833
834
835	/**
836	* Worker for loading per-VCPU APIC data for legacy (old) saved-states.
837	*
838	* @returns VBox status code.
839	* @param pDevIns The device instance.
840	* @param pVCpu The cross context virtual CPU structure.
841	* @param pSSM The SSM handle.
842	* @param uVersion Data layout version.
843	*/
844	static int apicR3LoadLegacyVCpuData(PPDMDEVINS pDevIns, PVMCPU pVCpu, PSSMHANDLE pSSM, uint32_t uVersion)
845	{
846	AssertReturn(uVersion <= APIC_SAVED_STATE_VERSION_VBOX_50, VERR_NOT_SUPPORTED);
847
848	PCPDMDEVHLPR3 pHlp = pDevIns->pHlpR3;
849	PAPICCPU pApicCpu = VMCPU_TO_APICCPU(pVCpu);
850	PXAPICPAGE pXApicPage = VMCPU_TO_XAPICPAGE(pVCpu);
851
852	uint32_t uApicBaseLo;
853	int rc = pHlp->pfnSSMGetU32(pSSM, &uApicBaseLo);
854	AssertRCReturn(rc, rc);
855	pApicCpu->uApicBaseMsr = uApicBaseLo;
856	Log2(("APIC%u: apicR3LoadLegacyVCpuData: uApicBaseMsr=%#RX64\n", pVCpu->idCpu, pApicCpu->uApicBaseMsr));
857
858	switch (uVersion)
859	{
860	case APIC_SAVED_STATE_VERSION_VBOX_50:
861	case APIC_SAVED_STATE_VERSION_VBOX_30:
862	{
863	uint32_t uApicId, uPhysApicId, uArbId;
864	pHlp->pfnSSMGetU32(pSSM, &uApicId); pXApicPage->id.u8ApicId = uApicId;
865	pHlp->pfnSSMGetU32(pSSM, &uPhysApicId); NOREF(uPhysApicId); /* PhysId == pVCpu->idCpu */
866	pHlp->pfnSSMGetU32(pSSM, &uArbId); NOREF(uArbId); /* ArbID is & was unused. */
867	break;
868	}
869
870	case APIC_SAVED_STATE_VERSION_ANCIENT:
871	{
872	uint8_t uPhysApicId;
873	pHlp->pfnSSMGetU8(pSSM, &pXApicPage->id.u8ApicId);
874	pHlp->pfnSSMGetU8(pSSM, &uPhysApicId); NOREF(uPhysApicId); /* PhysId == pVCpu->idCpu */
875	break;
876	}
877
878	default:
879	return VERR_SSM_UNSUPPORTED_DATA_UNIT_VERSION;
880	}
881
882	uint32_t u32Tpr;
883	pHlp->pfnSSMGetU32(pSSM, &u32Tpr);
884	pXApicPage->tpr.u8Tpr = u32Tpr & XAPIC_TPR_VALID;
885
886	pHlp->pfnSSMGetU32(pSSM, &pXApicPage->svr.all.u32Svr);
887	pHlp->pfnSSMGetU8(pSSM, &pXApicPage->ldr.u.u8LogicalApicId);
888
889	uint8_t uDfr;
890	pHlp->pfnSSMGetU8(pSSM, &uDfr);
891	pXApicPage->dfr.u.u4Model = uDfr >> 4;
892
893	AssertCompile(RT_ELEMENTS(pXApicPage->isr.u) == 8);
894	AssertCompile(RT_ELEMENTS(pXApicPage->tmr.u) == 8);
895	AssertCompile(RT_ELEMENTS(pXApicPage->irr.u) == 8);
896	for (size_t i = 0; i < 8; i++)
897	{
898	pHlp->pfnSSMGetU32(pSSM, &pXApicPage->isr.u[i].u32Reg);
899	pHlp->pfnSSMGetU32(pSSM, &pXApicPage->tmr.u[i].u32Reg);
900	pHlp->pfnSSMGetU32(pSSM, &pXApicPage->irr.u[i].u32Reg);
901	}
902
903	pHlp->pfnSSMGetU32(pSSM, &pXApicPage->lvt_timer.all.u32LvtTimer);
904	pHlp->pfnSSMGetU32(pSSM, &pXApicPage->lvt_thermal.all.u32LvtThermal);
905	pHlp->pfnSSMGetU32(pSSM, &pXApicPage->lvt_perf.all.u32LvtPerf);
906	pHlp->pfnSSMGetU32(pSSM, &pXApicPage->lvt_lint0.all.u32LvtLint0);
907	pHlp->pfnSSMGetU32(pSSM, &pXApicPage->lvt_lint1.all.u32LvtLint1);
908	pHlp->pfnSSMGetU32(pSSM, &pXApicPage->lvt_error.all.u32LvtError);
909
910	pHlp->pfnSSMGetU32(pSSM, &pXApicPage->esr.all.u32Errors);
911	pHlp->pfnSSMGetU32(pSSM, &pXApicPage->icr_lo.all.u32IcrLo);
912	pHlp->pfnSSMGetU32(pSSM, &pXApicPage->icr_hi.all.u32IcrHi);
913
914	uint32_t u32TimerShift;
915	pHlp->pfnSSMGetU32(pSSM, &pXApicPage->timer_dcr.all.u32DivideValue);
916	pHlp->pfnSSMGetU32(pSSM, &u32TimerShift);
917	/*
918	* Old implementation may have left the timer shift uninitialized until
919	* the timer configuration register was written. Unfortunately zero is
920	* also a valid timer shift value, so we're just going to ignore it
921	* completely. The shift count can always be derived from the DCR.
922	* See @bugref{8245#c98}.
923	*/
924	uint8_t const uTimerShift = apicGetTimerShift(pXApicPage);
925
926	pHlp->pfnSSMGetU32(pSSM, &pXApicPage->timer_icr.u32InitialCount);
927	pHlp->pfnSSMGetU64(pSSM, &pApicCpu->u64TimerInitial);
928	uint64_t uNextTS;
929	rc = pHlp->pfnSSMGetU64(pSSM, &uNextTS); AssertRCReturn(rc, rc);
930	if (uNextTS >= pApicCpu->u64TimerInitial + ((pXApicPage->timer_icr.u32InitialCount + 1) << uTimerShift))
931	pXApicPage->timer_ccr.u32CurrentCount = pXApicPage->timer_icr.u32InitialCount;
932
933	rc = PDMDevHlpTimerLoad(pDevIns, pApicCpu->hTimer, pSSM);
934	AssertRCReturn(rc, rc);
935	Assert(pApicCpu->uHintedTimerInitialCount == 0);
936	Assert(pApicCpu->uHintedTimerShift == 0);
937	if (PDMDevHlpTimerIsActive(pDevIns, pApicCpu->hTimer))
938	{
939	uint32_t const uInitialCount = pXApicPage->timer_icr.u32InitialCount;
940	apicHintTimerFreq(pDevIns, pApicCpu, uInitialCount, uTimerShift);
941	}
942
943	return rc;
944	}
945
946
947	/**
948	* @copydoc FNSSMDEVSAVEEXEC
949	*/
950	static DECLCALLBACK(int) apicR3SaveExec(PPDMDEVINS pDevIns, PSSMHANDLE pSSM)
951	{
952	PVM pVM = PDMDevHlpGetVM(pDevIns);
953	PCPDMDEVHLPR3 pHlp = pDevIns->pHlpR3;
954
955	AssertReturn(pVM, VERR_INVALID_VM_HANDLE);
956
957	LogFlow(("APIC: apicR3SaveExec\n"));
958
959	/* Save per-VM data. */
960	int rc = apicR3SaveVMData(pDevIns, pVM, pSSM);
961	AssertRCReturn(rc, rc);
962
963	/* Save per-VCPU data.*/
964	for (VMCPUID idCpu = 0; idCpu < pVM->cCpus; idCpu++)
965	{
966	PVMCPU pVCpu = pVM->apCpusR3[idCpu];
967	PCAPICCPU pApicCpu = VMCPU_TO_APICCPU(pVCpu);
968
969	/* Update interrupts from the pending-interrupts bitmaps to the IRR. */
970	APICUpdatePendingInterrupts(pVCpu);
971
972	/* Save the auxiliary data. */
973	pHlp->pfnSSMPutU64(pSSM, pApicCpu->uApicBaseMsr);
974	pHlp->pfnSSMPutU32(pSSM, pApicCpu->uEsrInternal);
975
976	/* Save the APIC page. */
977	if (XAPIC_IN_X2APIC_MODE(pVCpu))
978	pHlp->pfnSSMPutStruct(pSSM, (const void *)pApicCpu->pvApicPageR3, &g_aX2ApicPageFields[0]);
979	else
980	pHlp->pfnSSMPutStruct(pSSM, (const void *)pApicCpu->pvApicPageR3, &g_aXApicPageFields[0]);
981
982	/* Save the timer. */
983	pHlp->pfnSSMPutU64(pSSM, pApicCpu->u64TimerInitial);
984	PDMDevHlpTimerSave(pDevIns, pApicCpu->hTimer, pSSM);
985
986	/* Save the LINT0, LINT1 interrupt line states. */
987	pHlp->pfnSSMPutBool(pSSM, pApicCpu->fActiveLint0);
988	pHlp->pfnSSMPutBool(pSSM, pApicCpu->fActiveLint1);
989
990	#if defined(APIC_FUZZY_SSM_COMPAT_TEST) \|\| defined(DEBUG_ramshankar)
991	apicR3DumpState(pVCpu, "Saved state", APIC_SAVED_STATE_VERSION);
992	#endif
993	}
994
995	#ifdef APIC_FUZZY_SSM_COMPAT_TEST
996	/* The state is fuzzy, don't even bother trying to load the guest. */
997	return VERR_INVALID_STATE;
998	#else
999	return rc;
1000	#endif
1001	}
1002
1003
1004	/**
1005	* @copydoc FNSSMDEVLOADEXEC
1006	*/
1007	static DECLCALLBACK(int) apicR3LoadExec(PPDMDEVINS pDevIns, PSSMHANDLE pSSM, uint32_t uVersion, uint32_t uPass)
1008	{
1009	PVM pVM = PDMDevHlpGetVM(pDevIns);
1010	PCPDMDEVHLPR3 pHlp = pDevIns->pHlpR3;
1011
1012	AssertReturn(pVM, VERR_INVALID_VM_HANDLE);
1013	AssertReturn(uPass == SSM_PASS_FINAL, VERR_WRONG_ORDER);
1014
1015	LogFlow(("APIC: apicR3LoadExec: uVersion=%u uPass=%#x\n", uVersion, uPass));
1016
1017	/* Weed out invalid versions. */
1018	if ( uVersion != APIC_SAVED_STATE_VERSION
1019	&& uVersion != APIC_SAVED_STATE_VERSION_VBOX_51_BETA2
1020	&& uVersion != APIC_SAVED_STATE_VERSION_VBOX_50
1021	&& uVersion != APIC_SAVED_STATE_VERSION_VBOX_30
1022	&& uVersion != APIC_SAVED_STATE_VERSION_ANCIENT)
1023	{
1024	LogRel(("APIC: apicR3LoadExec: Invalid/unrecognized saved-state version %u (%#x)\n", uVersion, uVersion));
1025	return VERR_SSM_UNSUPPORTED_DATA_UNIT_VERSION;
1026	}
1027
1028	int rc = VINF_SUCCESS;
1029	if (uVersion > APIC_SAVED_STATE_VERSION_VBOX_30)
1030	{
1031	rc = apicR3LoadVMData(pDevIns, pVM, pSSM);
1032	AssertRCReturn(rc, rc);
1033
1034	if (uVersion == APIC_SAVED_STATE_VERSION)
1035	{ /* Load any new additional per-VM data. */ }
1036	}
1037
1038	/*
1039	* Restore per CPU state.
1040	*
1041	* Note! PDM will restore the VMCPU_FF_INTERRUPT_APIC flag for us.
1042	* This code doesn't touch it. No devices should make us touch
1043	* it later during the restore either, only during the 'done' phase.
1044	*/
1045	for (VMCPUID idCpu = 0; idCpu < pVM->cCpus; idCpu++)
1046	{
1047	PVMCPU pVCpu = pVM->apCpusR3[idCpu];
1048	PAPICCPU pApicCpu = VMCPU_TO_APICCPU(pVCpu);
1049
1050	if (uVersion > APIC_SAVED_STATE_VERSION_VBOX_50)
1051	{
1052	/* Load the auxiliary data. */
1053	pHlp->pfnSSMGetU64V(pSSM, &pApicCpu->uApicBaseMsr);
1054	pHlp->pfnSSMGetU32(pSSM, &pApicCpu->uEsrInternal);
1055
1056	/* Load the APIC page. */
1057	if (XAPIC_IN_X2APIC_MODE(pVCpu))
1058	pHlp->pfnSSMGetStruct(pSSM, pApicCpu->pvApicPageR3, &g_aX2ApicPageFields[0]);
1059	else
1060	pHlp->pfnSSMGetStruct(pSSM, pApicCpu->pvApicPageR3, &g_aXApicPageFields[0]);
1061
1062	/* Load the timer. */
1063	rc = pHlp->pfnSSMGetU64(pSSM, &pApicCpu->u64TimerInitial); AssertRCReturn(rc, rc);
1064	rc = PDMDevHlpTimerLoad(pDevIns, pApicCpu->hTimer, pSSM); AssertRCReturn(rc, rc);
1065	Assert(pApicCpu->uHintedTimerShift == 0);
1066	Assert(pApicCpu->uHintedTimerInitialCount == 0);
1067	if (PDMDevHlpTimerIsActive(pDevIns, pApicCpu->hTimer))
1068	{
1069	PCXAPICPAGE pXApicPage = VMCPU_TO_CXAPICPAGE(pVCpu);
1070	uint32_t const uInitialCount = pXApicPage->timer_icr.u32InitialCount;
1071	uint8_t const uTimerShift = apicGetTimerShift(pXApicPage);
1072	apicHintTimerFreq(pDevIns, pApicCpu, uInitialCount, uTimerShift);
1073	}
1074
1075	/* Load the LINT0, LINT1 interrupt line states. */
1076	if (uVersion > APIC_SAVED_STATE_VERSION_VBOX_51_BETA2)
1077	{
1078	pHlp->pfnSSMGetBoolV(pSSM, &pApicCpu->fActiveLint0);
1079	pHlp->pfnSSMGetBoolV(pSSM, &pApicCpu->fActiveLint1);
1080	}
1081	}
1082	else
1083	{
1084	rc = apicR3LoadLegacyVCpuData(pDevIns, pVCpu, pSSM, uVersion);
1085	AssertRCReturn(rc, rc);
1086	}
1087
1088	/*
1089	* Check that we're still good wrt restored data, then tell CPUM about the current CPUID[1].EDX[9] visibility.
1090	*/
1091	rc = pHlp->pfnSSMHandleGetStatus(pSSM);
1092	AssertRCReturn(rc, rc);
1093	CPUMSetGuestCpuIdPerCpuApicFeature(pVCpu, RT_BOOL(pApicCpu->uApicBaseMsr & MSR_IA32_APICBASE_EN));
1094
1095	#if defined(APIC_FUZZY_SSM_COMPAT_TEST) \|\| defined(DEBUG_ramshankar)
1096	apicR3DumpState(pVCpu, "Loaded state", uVersion);
1097	#endif
1098	}
1099
1100	return rc;
1101	}
1102
1103
1104	/**
1105	* @callback_method_impl{FNTMTIMERDEV}
1106	*
1107	* @note pvUser points to the VMCPU.
1108	*
1109	* @remarks Currently this function is invoked on the last EMT, see @c
1110	* idTimerCpu in tmR3TimerCallback(). However, the code does -not-
1111	* rely on this and is designed to work with being invoked on any
1112	* thread.
1113	*/
1114	static DECLCALLBACK(void) apicR3TimerCallback(PPDMDEVINS pDevIns, TMTIMERHANDLE hTimer, void *pvUser)
1115	{
1116	PVMCPU pVCpu = (PVMCPU)pvUser;
1117	PAPICCPU pApicCpu = VMCPU_TO_APICCPU(pVCpu);
1118	Assert(PDMDevHlpTimerIsLockOwner(pDevIns, pApicCpu->hTimer));
1119	Assert(pVCpu);
1120	LogFlow(("APIC%u: apicR3TimerCallback\n", pVCpu->idCpu));
1121	RT_NOREF(pDevIns, hTimer, pApicCpu);
1122
1123	PXAPICPAGE pXApicPage = VMCPU_TO_XAPICPAGE(pVCpu);
1124	uint32_t const uLvtTimer = pXApicPage->lvt_timer.all.u32LvtTimer;
1125	#ifdef VBOX_WITH_STATISTICS
1126	STAM_COUNTER_INC(&pApicCpu->StatTimerCallback);
1127	#endif
1128	if (!XAPIC_LVT_IS_MASKED(uLvtTimer))
1129	{
1130	uint8_t uVector = XAPIC_LVT_GET_VECTOR(uLvtTimer);
1131	Log2(("APIC%u: apicR3TimerCallback: Raising timer interrupt. uVector=%#x\n", pVCpu->idCpu, uVector));
1132	apicPostInterrupt(pVCpu, uVector, XAPICTRIGGERMODE_EDGE, 0 /* uSrcTag */);
1133	}
1134
1135	XAPICTIMERMODE enmTimerMode = XAPIC_LVT_GET_TIMER_MODE(uLvtTimer);
1136	switch (enmTimerMode)
1137	{
1138	case XAPICTIMERMODE_PERIODIC:
1139	{
1140	/* The initial-count register determines if the periodic timer is re-armed. */
1141	uint32_t const uInitialCount = pXApicPage->timer_icr.u32InitialCount;
1142	pXApicPage->timer_ccr.u32CurrentCount = uInitialCount;
1143	if (uInitialCount)
1144	{
1145	Log2(("APIC%u: apicR3TimerCallback: Re-arming timer. uInitialCount=%#RX32\n", pVCpu->idCpu, uInitialCount));
1146	apicStartTimer(pVCpu, uInitialCount);
1147	}
1148	break;
1149	}
1150
1151	case XAPICTIMERMODE_ONESHOT:
1152	{
1153	pXApicPage->timer_ccr.u32CurrentCount = 0;
1154	break;
1155	}
1156
1157	case XAPICTIMERMODE_TSC_DEADLINE:
1158	{
1159	/** @todo implement TSC deadline. */
1160	AssertMsgFailed(("APIC: TSC deadline mode unimplemented\n"));
1161	break;
1162	}
1163	}
1164	}
1165
1166
1167	/**
1168	* @interface_method_impl{PDMDEVREG,pfnReset}
1169	*/
1170	DECLCALLBACK(void) apicR3Reset(PPDMDEVINS pDevIns)
1171	{
1172	PVM pVM = PDMDevHlpGetVM(pDevIns);
1173	VM_ASSERT_EMT0(pVM);
1174	VM_ASSERT_IS_NOT_RUNNING(pVM);
1175
1176	LogFlow(("APIC: apicR3Reset\n"));
1177
1178	for (VMCPUID idCpu = 0; idCpu < pVM->cCpus; idCpu++)
1179	{
1180	PVMCPU pVCpuDest = pVM->apCpusR3[idCpu];
1181	PAPICCPU pApicCpu = VMCPU_TO_APICCPU(pVCpuDest);
1182
1183	if (PDMDevHlpTimerIsActive(pDevIns, pApicCpu->hTimer))
1184	PDMDevHlpTimerStop(pDevIns, pApicCpu->hTimer);
1185
1186	apicResetCpu(pVCpuDest, true /* fResetApicBaseMsr */);
1187
1188	/* Clear the interrupt pending force flag. */
1189	apicClearInterruptFF(pVCpuDest, PDMAPICIRQ_HARDWARE);
1190	}
1191	}
1192
1193
1194	/**
1195	* @interface_method_impl{PDMDEVREG,pfnRelocate}
1196	*/
1197	DECLCALLBACK(void) apicR3Relocate(PPDMDEVINS pDevIns, RTGCINTPTR offDelta)
1198	{
1199	RT_NOREF(pDevIns, offDelta);
1200	}
1201
1202
1203	/**
1204	* Terminates the APIC state.
1205	*
1206	* @param pVM The cross context VM structure.
1207	*/
1208	static void apicR3TermState(PVM pVM)
1209	{
1210	PAPIC pApic = VM_TO_APIC(pVM);
1211	LogFlow(("APIC: apicR3TermState: pVM=%p\n", pVM));
1212
1213	/* Unmap and free the PIB. */
1214	if (pApic->pvApicPibR3 != NIL_RTR3PTR)
1215	{
1216	size_t const cPages = pApic->cbApicPib >> HOST_PAGE_SHIFT;
1217	if (cPages == 1)
1218	SUPR3PageFreeEx(pApic->pvApicPibR3, cPages);
1219	else
1220	SUPR3ContFree(pApic->pvApicPibR3, cPages);
1221	pApic->pvApicPibR3 = NIL_RTR3PTR;
1222	pApic->pvApicPibR0 = NIL_RTR0PTR;
1223	}
1224
1225	/* Unmap and free the virtual-APIC pages. */
1226	for (VMCPUID idCpu = 0; idCpu < pVM->cCpus; idCpu++)
1227	{
1228	PVMCPU pVCpu = pVM->apCpusR3[idCpu];
1229	PAPICCPU pApicCpu = VMCPU_TO_APICCPU(pVCpu);
1230
1231	pApicCpu->pvApicPibR3 = NIL_RTR3PTR;
1232	pApicCpu->pvApicPibR0 = NIL_RTR0PTR;
1233
1234	if (pApicCpu->pvApicPageR3 != NIL_RTR3PTR)
1235	{
1236	SUPR3PageFreeEx(pApicCpu->pvApicPageR3, 1 /* cPages */);
1237	pApicCpu->pvApicPageR3 = NIL_RTR3PTR;
1238	pApicCpu->pvApicPageR0 = NIL_RTR0PTR;
1239	}
1240	}
1241	}
1242
1243
1244	/**
1245	* Initializes the APIC state.
1246	*
1247	* @returns VBox status code.
1248	* @param pVM The cross context VM structure.
1249	*/
1250	static int apicR3InitState(PVM pVM)
1251	{
1252	PAPIC pApic = VM_TO_APIC(pVM);
1253	LogFlow(("APIC: apicR3InitState: pVM=%p\n", pVM));
1254
1255	/*
1256	* Allocate and map the pending-interrupt bitmap (PIB).
1257	*
1258	* We allocate all the VCPUs' PIBs contiguously in order to save space as
1259	* physically contiguous allocations are rounded to a multiple of page size.
1260	*/
1261	Assert(pApic->pvApicPibR3 == NIL_RTR3PTR);
1262	Assert(pApic->pvApicPibR0 == NIL_RTR0PTR);
1263	pApic->cbApicPib = RT_ALIGN_Z(pVM->cCpus * sizeof(APICPIB), HOST_PAGE_SIZE);
1264	size_t const cHostPages = pApic->cbApicPib >> HOST_PAGE_SHIFT;
1265	if (cHostPages == 1)
1266	{
1267	SUPPAGE SupApicPib;
1268	RT_ZERO(SupApicPib);
1269	SupApicPib.Phys = NIL_RTHCPHYS;
1270	int rc = SUPR3PageAllocEx(1 /* cHostPages /, 0 / fFlags */, &pApic->pvApicPibR3, &pApic->pvApicPibR0, &SupApicPib);
1271	if (RT_SUCCESS(rc))
1272	{
1273	pApic->HCPhysApicPib = SupApicPib.Phys;
1274	AssertLogRelReturn(pApic->pvApicPibR3, VERR_INTERNAL_ERROR);
1275	}
1276	else
1277	{
1278	LogRel(("APIC: Failed to allocate %u bytes for the pending-interrupt bitmap, rc=%Rrc\n", pApic->cbApicPib, rc));
1279	return rc;
1280	}
1281	}
1282	else
1283	pApic->pvApicPibR3 = SUPR3ContAlloc(cHostPages, &pApic->pvApicPibR0, &pApic->HCPhysApicPib);
1284
1285	if (pApic->pvApicPibR3)
1286	{
1287	bool const fDriverless = SUPR3IsDriverless();
1288	AssertLogRelReturn(pApic->pvApicPibR0 != NIL_RTR0PTR \|\| fDriverless, VERR_INTERNAL_ERROR);
1289	AssertLogRelReturn(pApic->HCPhysApicPib != NIL_RTHCPHYS \|\| fDriverless, VERR_INTERNAL_ERROR);
1290
1291	/* Initialize the PIB. */
1292	RT_BZERO(pApic->pvApicPibR3, pApic->cbApicPib);
1293
1294	/*
1295	* Allocate the map the virtual-APIC pages.
1296	*/
1297	for (VMCPUID idCpu = 0; idCpu < pVM->cCpus; idCpu++)
1298	{
1299	PVMCPU pVCpu = pVM->apCpusR3[idCpu];
1300	PAPICCPU pApicCpu = VMCPU_TO_APICCPU(pVCpu);
1301
1302	SUPPAGE SupApicPage;
1303	RT_ZERO(SupApicPage);
1304	SupApicPage.Phys = NIL_RTHCPHYS;
1305
1306	Assert(pVCpu->idCpu == idCpu);
1307	Assert(pApicCpu->pvApicPageR3 == NIL_RTR3PTR);
1308	Assert(pApicCpu->pvApicPageR0 == NIL_RTR0PTR);
1309	AssertCompile(sizeof(XAPICPAGE) <= HOST_PAGE_SIZE);
1310	pApicCpu->cbApicPage = sizeof(XAPICPAGE);
1311	int rc = SUPR3PageAllocEx(1 /* cHostPages /, 0 / fFlags */, &pApicCpu->pvApicPageR3, &pApicCpu->pvApicPageR0,
1312	&SupApicPage);
1313	if (RT_SUCCESS(rc))
1314	{
1315	AssertLogRelReturn(pApicCpu->pvApicPageR3 != NIL_RTR3PTR \|\| fDriverless, VERR_INTERNAL_ERROR);
1316	pApicCpu->HCPhysApicPage = SupApicPage.Phys;
1317	AssertLogRelReturn(pApicCpu->HCPhysApicPage != NIL_RTHCPHYS \|\| fDriverless, VERR_INTERNAL_ERROR);
1318
1319	/* Associate the per-VCPU PIB pointers to the per-VM PIB mapping. */
1320	uint32_t const offApicPib = idCpu * sizeof(APICPIB);
1321	pApicCpu->pvApicPibR0 = !fDriverless ? (RTR0PTR)((RTR0UINTPTR)pApic->pvApicPibR0 + offApicPib) : NIL_RTR0PTR;
1322	pApicCpu->pvApicPibR3 = (RTR3PTR)((RTR3UINTPTR)pApic->pvApicPibR3 + offApicPib);
1323
1324	/* Initialize the virtual-APIC state. */
1325	RT_BZERO(pApicCpu->pvApicPageR3, pApicCpu->cbApicPage);
1326	apicResetCpu(pVCpu, true /* fResetApicBaseMsr */);
1327
1328	#ifdef DEBUG_ramshankar
1329	Assert(pApicCpu->pvApicPibR3 != NIL_RTR3PTR);
1330	Assert(pApicCpu->pvApicPibR0 != NIL_RTR0PTR \|\| fDriverless);
1331	Assert(pApicCpu->pvApicPageR3 != NIL_RTR3PTR);
1332	#endif
1333	}
1334	else
1335	{
1336	LogRel(("APIC%u: Failed to allocate %u bytes for the virtual-APIC page, rc=%Rrc\n", idCpu, pApicCpu->cbApicPage, rc));
1337	apicR3TermState(pVM);
1338	return rc;
1339	}
1340	}
1341
1342	#ifdef DEBUG_ramshankar
1343	Assert(pApic->pvApicPibR3 != NIL_RTR3PTR);
1344	Assert(pApic->pvApicPibR0 != NIL_RTR0PTR \|\| fDriverless);
1345	#endif
1346	return VINF_SUCCESS;
1347	}
1348
1349	LogRel(("APIC: Failed to allocate %u bytes of physically contiguous memory for the pending-interrupt bitmap\n",
1350	pApic->cbApicPib));
1351	return VERR_NO_MEMORY;
1352	}
1353
1354
1355	/**
1356	* @interface_method_impl{PDMDEVREG,pfnDestruct}
1357	*/
1358	DECLCALLBACK(int) apicR3Destruct(PPDMDEVINS pDevIns)
1359	{
1360	PDMDEV_CHECK_VERSIONS_RETURN_QUIET(pDevIns);
1361	PVM pVM = PDMDevHlpGetVM(pDevIns);
1362	LogFlow(("APIC: apicR3Destruct: pVM=%p\n", pVM));
1363
1364	apicR3TermState(pVM);
1365	return VINF_SUCCESS;
1366	}
1367
1368
1369	/**
1370	* @interface_method_impl{PDMDEVREG,pfnInitComplete}
1371	*/
1372	DECLCALLBACK(int) apicR3InitComplete(PPDMDEVINS pDevIns)
1373	{
1374	PVM pVM = PDMDevHlpGetVM(pDevIns);
1375	PAPIC pApic = VM_TO_APIC(pVM);
1376
1377	/*
1378	* Init APIC settings that rely on HM and CPUM configurations.
1379	*/
1380	CPUMCPUIDLEAF CpuLeaf;
1381	int rc = CPUMR3CpuIdGetLeaf(pVM, &CpuLeaf, 1, 0);
1382	AssertRCReturn(rc, rc);
1383
1384	pApic->fSupportsTscDeadline = RT_BOOL(CpuLeaf.uEcx & X86_CPUID_FEATURE_ECX_TSCDEADL);
1385	pApic->fPostedIntrsEnabled = HMR3IsPostedIntrsEnabled(pVM->pUVM);
1386	pApic->fVirtApicRegsEnabled = HMR3AreVirtApicRegsEnabled(pVM->pUVM);
1387
1388	LogRel(("APIC: fPostedIntrsEnabled=%RTbool fVirtApicRegsEnabled=%RTbool fSupportsTscDeadline=%RTbool\n",
1389	pApic->fPostedIntrsEnabled, pApic->fVirtApicRegsEnabled, pApic->fSupportsTscDeadline));
1390
1391	return VINF_SUCCESS;
1392	}
1393
1394
1395	/**
1396	* @interface_method_impl{PDMDEVREG,pfnConstruct}
1397	*/
1398	DECLCALLBACK(int) apicR3Construct(PPDMDEVINS pDevIns, int iInstance, PCFGMNODE pCfg)
1399	{
1400	PDMDEV_CHECK_VERSIONS_RETURN(pDevIns);
1401	PAPICDEV pApicDev = PDMDEVINS_2_DATA(pDevIns, PAPICDEV);
1402	PCPDMDEVHLPR3 pHlp = pDevIns->pHlpR3;
1403	PVM pVM = PDMDevHlpGetVM(pDevIns);
1404	PAPIC pApic = VM_TO_APIC(pVM);
1405	Assert(iInstance == 0); NOREF(iInstance);
1406
1407	/*
1408	* Init the data.
1409	*/
1410	pApic->pDevInsR3 = pDevIns;
1411	pApic->fR0Enabled = pDevIns->fR0Enabled;
1412	pApic->fRCEnabled = pDevIns->fRCEnabled;
1413
1414	/*
1415	* Validate APIC settings.
1416	*/
1417	PDMDEV_VALIDATE_CONFIG_RETURN(pDevIns, "Mode\|IOAPIC\|NumCPUs\|MacOSWorkaround", "");
1418
1419	/** @devcfgm{apic, IOAPIC, bool, true}
1420	* Indicates whether an I/O APIC is present in the system. */
1421	int rc = pHlp->pfnCFGMQueryBoolDef(pCfg, "IOAPIC", &pApic->fIoApicPresent, true);
1422	AssertLogRelRCReturn(rc, rc);
1423
1424	/** @devcfgm{apic, Mode, PDMAPICMODE, APIC(2)}
1425	* Max APIC feature level. */
1426	uint8_t uMaxMode;
1427	rc = pHlp->pfnCFGMQueryU8Def(pCfg, "Mode", &uMaxMode, PDMAPICMODE_APIC);
1428	AssertLogRelRCReturn(rc, rc);
1429	switch ((PDMAPICMODE)uMaxMode)
1430	{
1431	case PDMAPICMODE_NONE:
1432	LogRel(("APIC: APIC maximum mode configured as 'None', effectively disabled/not-present!\n"));
1433	case PDMAPICMODE_APIC:
1434	case PDMAPICMODE_X2APIC:
1435	break;
1436	default:
1437	return VMR3SetError(pVM->pUVM, VERR_INVALID_PARAMETER, RT_SRC_POS, "APIC mode %d unknown.", uMaxMode);
1438	}
1439	pApic->enmMaxMode = (PDMAPICMODE)uMaxMode;
1440
1441	/** @devcfgm{apic, MacOSWorkaround, bool, false}
1442	* Enables a workaround for incorrect MSR_IA32_X2APIC_ID handling in macOS.
1443	*
1444	* Vital code in osfmk/i386/i386_init.c's vstart() routine incorrectly applies a
1445	* 24 right shift to the ID register value (correct for legacy APIC, but
1446	* entirely wrong for x2APIC), with the consequence that all CPUs use the same
1447	* per-cpu data and things panic pretty quickly. There are some shifty ID
1448	* reads in lapic_native.c too, but they are for either harmless (assuming boot
1449	* CPU has ID 0) or are for logging/debugging purposes only. */
1450	rc = pHlp->pfnCFGMQueryBoolDef(pCfg, "MacOSWorkaround", &pApic->fMacOSWorkaround, false);
1451	AssertLogRelRCReturn(rc, rc);
1452
1453	/*
1454	* Disable automatic PDM locking for this device.
1455	*/
1456	rc = PDMDevHlpSetDeviceCritSect(pDevIns, PDMDevHlpCritSectGetNop(pDevIns));
1457	AssertRCReturn(rc, rc);
1458
1459	/*
1460	* Register the APIC with PDM.
1461	*/
1462	rc = PDMDevHlpApicRegister(pDevIns);
1463	AssertLogRelRCReturn(rc, rc);
1464
1465	/*
1466	* Initialize the APIC state.
1467	*/
1468	if (pApic->enmMaxMode == PDMAPICMODE_X2APIC)
1469	{
1470	rc = CPUMR3MsrRangesInsert(pVM, &g_MsrRange_x2Apic);
1471	AssertLogRelRCReturn(rc, rc);
1472	}
1473	else
1474	{
1475	/* We currently don't have a function to remove the range, so we register an range which will cause a #GP. */
1476	rc = CPUMR3MsrRangesInsert(pVM, &g_MsrRange_x2Apic_Invalid);
1477	AssertLogRelRCReturn(rc, rc);
1478	}
1479
1480	/* Tell CPUM about the APIC feature level so it can adjust APICBASE MSR GP mask and CPUID bits. */
1481	apicR3SetCpuIdFeatureLevel(pVM, pApic->enmMaxMode);
1482
1483	/* Finally, initialize the state. */
1484	rc = apicR3InitState(pVM);
1485	AssertRCReturn(rc, rc);
1486
1487	/*
1488	* Register the MMIO range.
1489	*/
1490	PAPICCPU pApicCpu0 = VMCPU_TO_APICCPU(pVM->apCpusR3[0]);
1491	RTGCPHYS GCPhysApicBase = MSR_IA32_APICBASE_GET_ADDR(pApicCpu0->uApicBaseMsr);
1492
1493	rc = PDMDevHlpMmioCreateAndMap(pDevIns, GCPhysApicBase, sizeof(XAPICPAGE), apicWriteMmio, apicReadMmio,
1494	IOMMMIO_FLAGS_READ_DWORD \| IOMMMIO_FLAGS_WRITE_DWORD_ZEROED, "APIC", &pApicDev->hMmio);
1495	AssertRCReturn(rc, rc);
1496
1497	/*
1498	* Create the APIC timers.
1499	*/
1500	for (VMCPUID idCpu = 0; idCpu < pVM->cCpus; idCpu++)
1501	{
1502	PVMCPU pVCpu = pVM->apCpusR3[idCpu];
1503	PAPICCPU pApicCpu = VMCPU_TO_APICCPU(pVCpu);
1504	RTStrPrintf(&pApicCpu->szTimerDesc[0], sizeof(pApicCpu->szTimerDesc), "APIC Timer %u", pVCpu->idCpu);
1505	rc = PDMDevHlpTimerCreate(pDevIns, TMCLOCK_VIRTUAL_SYNC, apicR3TimerCallback, pVCpu,
1506	TMTIMER_FLAGS_NO_CRIT_SECT \| TMTIMER_FLAGS_RING0, pApicCpu->szTimerDesc, &pApicCpu->hTimer);
1507	AssertRCReturn(rc, rc);
1508	}
1509
1510	/*
1511	* Register saved state callbacks.
1512	*/
1513	rc = PDMDevHlpSSMRegister(pDevIns, APIC_SAVED_STATE_VERSION, sizeof(*pApicDev), apicR3SaveExec, apicR3LoadExec);
1514	AssertRCReturn(rc, rc);
1515
1516	/*
1517	* Register debugger info callbacks.
1518	*
1519	* We use separate callbacks rather than arguments so they can also be
1520	* dumped in an automated fashion while collecting crash diagnostics and
1521	* not just used during live debugging via the VM debugger.
1522	*/
1523	DBGFR3InfoRegisterInternalEx(pVM, "apic", "Dumps APIC basic information.", apicR3Info, DBGFINFO_FLAGS_ALL_EMTS);
1524	DBGFR3InfoRegisterInternalEx(pVM, "apiclvt", "Dumps APIC LVT information.", apicR3InfoLvt, DBGFINFO_FLAGS_ALL_EMTS);
1525	DBGFR3InfoRegisterInternalEx(pVM, "apictimer", "Dumps APIC timer information.", apicR3InfoTimer, DBGFINFO_FLAGS_ALL_EMTS);
1526
1527	/*
1528	* Statistics.
1529	*/
1530	#define APIC_REG_COUNTER(a_pvReg, a_pszNameFmt, a_pszDesc) \
1531	PDMDevHlpSTAMRegisterF(pDevIns, a_pvReg, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, \
1532	STAMUNIT_OCCURENCES, a_pszDesc, a_pszNameFmt, idCpu)
1533	#define APIC_PROF_COUNTER(a_pvReg, a_pszNameFmt, a_pszDesc) \
1534	PDMDevHlpSTAMRegisterF(pDevIns, a_pvReg, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, \
1535	STAMUNIT_TICKS_PER_CALL, a_pszDesc, a_pszNameFmt, idCpu)
1536
1537	for (VMCPUID idCpu = 0; idCpu < pVM->cCpus; idCpu++)
1538	{
1539	PVMCPU pVCpu = pVM->apCpusR3[idCpu];
1540	PAPICCPU pApicCpu = VMCPU_TO_APICCPU(pVCpu);
1541
1542	APIC_REG_COUNTER(&pApicCpu->StatPostIntrCnt, "%u", "APIC/VCPU stats / number of apicPostInterrupt calls.");
1543	for (size_t i = 0; i < RT_ELEMENTS(pApicCpu->aStatVectors); i++)
1544	PDMDevHlpSTAMRegisterF(pDevIns, &pApicCpu->aStatVectors[i], STAMTYPE_COUNTER, STAMVISIBILITY_USED, STAMUNIT_OCCURENCES,
1545	"Number of APICPostInterrupt calls for the vector.", "%u/Vectors/%02x", idCpu, i);
1546
1547	#ifdef VBOX_WITH_STATISTICS
1548	APIC_REG_COUNTER(&pApicCpu->StatMmioReadRZ, "%u/RZ/MmioRead", "Number of APIC MMIO reads in RZ.");
1549	APIC_REG_COUNTER(&pApicCpu->StatMmioWriteRZ, "%u/RZ/MmioWrite", "Number of APIC MMIO writes in RZ.");
1550	APIC_REG_COUNTER(&pApicCpu->StatMsrReadRZ, "%u/RZ/MsrRead", "Number of APIC MSR reads in RZ.");
1551	APIC_REG_COUNTER(&pApicCpu->StatMsrWriteRZ, "%u/RZ/MsrWrite", "Number of APIC MSR writes in RZ.");
1552
1553	APIC_REG_COUNTER(&pApicCpu->StatMmioReadR3, "%u/R3/MmioRead", "Number of APIC MMIO reads in R3.");
1554	APIC_REG_COUNTER(&pApicCpu->StatMmioWriteR3, "%u/R3/MmioWrite", "Number of APIC MMIO writes in R3.");
1555	APIC_REG_COUNTER(&pApicCpu->StatMsrReadR3, "%u/R3/MsrRead", "Number of APIC MSR reads in R3.");
1556	APIC_REG_COUNTER(&pApicCpu->StatMsrWriteR3, "%u/R3/MsrWrite", "Number of APIC MSR writes in R3.");
1557
1558	APIC_REG_COUNTER(&pApicCpu->StatPostIntrAlreadyPending,
1559	"%u/PostInterruptAlreadyPending", "Number of times an interrupt is already pending.");
1560	APIC_REG_COUNTER(&pApicCpu->StatTimerCallback, "%u/TimerCallback", "Number of times the timer callback is invoked.");
1561
1562	APIC_REG_COUNTER(&pApicCpu->StatTprWrite, "%u/TprWrite", "Number of TPR writes.");
1563	APIC_REG_COUNTER(&pApicCpu->StatTprRead, "%u/TprRead", "Number of TPR reads.");
1564	APIC_REG_COUNTER(&pApicCpu->StatEoiWrite, "%u/EoiWrite", "Number of EOI writes.");
1565	APIC_REG_COUNTER(&pApicCpu->StatMaskedByTpr, "%u/MaskedByTpr", "Number of times TPR masks an interrupt in apicGetInterrupt.");
1566	APIC_REG_COUNTER(&pApicCpu->StatMaskedByPpr, "%u/MaskedByPpr", "Number of times PPR masks an interrupt in apicGetInterrupt.");
1567	APIC_REG_COUNTER(&pApicCpu->StatTimerIcrWrite, "%u/TimerIcrWrite", "Number of times the timer ICR is written.");
1568	APIC_REG_COUNTER(&pApicCpu->StatIcrLoWrite, "%u/IcrLoWrite", "Number of times the ICR Lo (send IPI) is written.");
1569	APIC_REG_COUNTER(&pApicCpu->StatIcrHiWrite, "%u/IcrHiWrite", "Number of times the ICR Hi is written.");
1570	APIC_REG_COUNTER(&pApicCpu->StatIcrFullWrite, "%u/IcrFullWrite", "Number of times the ICR full (send IPI, x2APIC) is written.");
1571	APIC_REG_COUNTER(&pApicCpu->StatIdMsrRead, "%u/IdMsrRead", "Number of times the APIC-ID MSR is read.");
1572	APIC_REG_COUNTER(&pApicCpu->StatDcrWrite, "%u/DcrWrite", "Number of times the DCR is written.");
1573	APIC_REG_COUNTER(&pApicCpu->StatDfrWrite, "%u/DfrWrite", "Number of times the DFR is written.");
1574	APIC_REG_COUNTER(&pApicCpu->StatLdrWrite, "%u/LdrWrite", "Number of times the LDR is written.");
1575	APIC_REG_COUNTER(&pApicCpu->StatLvtTimerWrite, "%u/LvtTimerWrite", "Number of times the LVT timer is written.");
1576
1577	APIC_PROF_COUNTER(&pApicCpu->StatUpdatePendingIntrs,
1578	"/PROF/CPU%u/APIC/UpdatePendingInterrupts", "Profiling of APICUpdatePendingInterrupts");
1579	APIC_PROF_COUNTER(&pApicCpu->StatPostIntr, "/PROF/CPU%u/APIC/PostInterrupt", "Profiling of APICPostInterrupt");
1580	#endif
1581	}
1582
1583	# undef APIC_PROF_COUNTER
1584	# undef APIC_REG_ACCESS_COUNTER
1585
1586	return VINF_SUCCESS;
1587	}
1588
1589	#endif /* !VBOX_DEVICE_STRUCT_TESTCASE */
1590

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source: vbox/trunk/src/VBox/VMM/VMMR3/APIC.cpp@ 94249

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