HWACCMR0.cpp@ 42696

Last change on this file since 42696 was 42407, checked in by vboxsync, 12 years ago
VMM: Futher work on dealing with hidden segment register, esp. when going stale.
Property svn:eol-style set to `native` Property svn:keywords set to `Id Revision`
File size: 72.6 KB

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1	/* $Id: HWACCMR0.cpp 42407 2012-07-26 11:41:35Z vboxsync $ */
2	/** @file
3	* Hardware Assisted Virtualization Manager (HM) - Host Context Ring-0.
4	*/
5
6	/*
7	* Copyright (C) 2006-2011 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_HWACCM
23	#include <VBox/vmm/hwaccm.h>
24	#include <VBox/vmm/pgm.h>
25	#include "HWACCMInternal.h"
26	#include <VBox/vmm/vm.h>
27	#include <VBox/vmm/hwacc_vmx.h>
28	#include <VBox/vmm/hwacc_svm.h>
29	#include <VBox/err.h>
30	#include <VBox/log.h>
31	#include <iprt/assert.h>
32	#include <iprt/asm.h>
33	#include <iprt/asm-amd64-x86.h>
34	#include <iprt/cpuset.h>
35	#include <iprt/mem.h>
36	#include <iprt/memobj.h>
37	#include <iprt/once.h>
38	#include <iprt/param.h>
39	#include <iprt/power.h>
40	#include <iprt/string.h>
41	#include <iprt/thread.h>
42	#include <iprt/x86.h>
43	#include "HWVMXR0.h"
44	#include "HWSVMR0.h"
45
46
47	/*******************************************************************************
48	* Internal Functions *
49	*******************************************************************************/
50	static DECLCALLBACK(void) hmR0EnableCpuCallback(RTCPUID idCpu, void pvUser1, void pvUser2);
51	static DECLCALLBACK(void) hmR0DisableCpuCallback(RTCPUID idCpu, void pvUser1, void pvUser2);
52	static DECLCALLBACK(void) hmR0InitIntelCpu(RTCPUID idCpu, void pvUser1, void pvUser2);
53	static DECLCALLBACK(void) hmR0InitAmdCpu(RTCPUID idCpu, void pvUser1, void pvUser2);
54	static DECLCALLBACK(void) hmR0PowerCallback(RTPOWEREVENT enmEvent, void *pvUser);
55	static DECLCALLBACK(void) hmR0MpEventCallback(RTMPEVENT enmEvent, RTCPUID idCpu, void *pvData);
56
57
58	/*******************************************************************************
59	* Structures and Typedefs *
60	*******************************************************************************/
61	/**
62	* This is used to manage the status code of a RTMpOnAll in HM.
63	*/
64	typedef struct HMR0FIRSTRC
65	{
66	/** The status code. */
67	int32_t volatile rc;
68	/** The ID of the CPU reporting the first failure. */
69	RTCPUID volatile idCpu;
70	} HMR0FIRSTRC;
71	/** Pointer to a first return code structure. */
72	typedef HMR0FIRSTRC *PHMR0FIRSTRC;
73
74
75	/*******************************************************************************
76	* Global Variables *
77	*******************************************************************************/
78	/**
79	* Global data.
80	*/
81	static struct
82	{
83	/** Per CPU globals. */
84	HMGLOBLCPUINFO aCpuInfo[RTCPUSET_MAX_CPUS];
85
86	/** @name Ring-0 method table for AMD-V and VT-x specific operations.
87	* @{ */
88	DECLR0CALLBACKMEMBER(int, pfnEnterSession,(PVM pVM, PVMCPU pVCpu, PHMGLOBLCPUINFO pCpu));
89	DECLR0CALLBACKMEMBER(int, pfnLeaveSession,(PVM pVM, PVMCPU pVCpu, PCPUMCTX pCtx));
90	DECLR0CALLBACKMEMBER(int, pfnSaveHostState,(PVM pVM, PVMCPU pVCpu));
91	DECLR0CALLBACKMEMBER(int, pfnLoadGuestState,(PVM pVM, PVMCPU pVCpu, PCPUMCTX pCtx));
92	DECLR0CALLBACKMEMBER(int, pfnRunGuestCode,(PVM pVM, PVMCPU pVCpu, PCPUMCTX pCtx));
93	DECLR0CALLBACKMEMBER(int, pfnEnableCpu,(PHMGLOBLCPUINFO pCpu, PVM pVM, void *pvCpuPage, RTHCPHYS HCPhysCpuPage));
94	DECLR0CALLBACKMEMBER(int, pfnDisableCpu,(PHMGLOBLCPUINFO pCpu, void *pvCpuPage, RTHCPHYS HCPhysCpuPage));
95	DECLR0CALLBACKMEMBER(int, pfnInitVM,(PVM pVM));
96	DECLR0CALLBACKMEMBER(int, pfnTermVM,(PVM pVM));
97	DECLR0CALLBACKMEMBER(int, pfnSetupVM,(PVM pVM));
98	/** @} */
99
100	/** Maximum ASID allowed. */
101	uint32_t uMaxASID;
102
103	/** VT-x data. */
104	struct
105	{
106	/** Set to by us to indicate VMX is supported by the CPU. */
107	bool fSupported;
108	/** Whether we're using SUPR0EnableVTx or not. */
109	bool fUsingSUPR0EnableVTx;
110	/** Whether we're using the preemption timer or not. */
111	bool fUsePreemptTimer;
112	/** The shift mask employed by the VMX-Preemption timer. */
113	uint8_t cPreemptTimerShift;
114
115	/** Host CR4 value (set by ring-0 VMX init) */
116	uint64_t hostCR4;
117
118	/** Host EFER value (set by ring-0 VMX init) */
119	uint64_t hostEFER;
120
121	/** VMX MSR values */
122	struct
123	{
124	uint64_t feature_ctrl;
125	uint64_t vmx_basic_info;
126	VMX_CAPABILITY vmx_pin_ctls;
127	VMX_CAPABILITY vmx_proc_ctls;
128	VMX_CAPABILITY vmx_proc_ctls2;
129	VMX_CAPABILITY vmx_exit;
130	VMX_CAPABILITY vmx_entry;
131	uint64_t vmx_misc;
132	uint64_t vmx_cr0_fixed0;
133	uint64_t vmx_cr0_fixed1;
134	uint64_t vmx_cr4_fixed0;
135	uint64_t vmx_cr4_fixed1;
136	uint64_t vmx_vmcs_enum;
137	uint64_t vmx_eptcaps;
138	} msr;
139	/* Last instruction error */
140	uint32_t ulLastInstrError;
141	} vmx;
142
143	/** AMD-V information. */
144	struct
145	{
146	/* HWCR msr (for diagnostics) */
147	uint64_t msrHWCR;
148
149	/** SVM revision. */
150	uint32_t u32Rev;
151
152	/** SVM feature bits from cpuid 0x8000000a */
153	uint32_t u32Features;
154
155	/** Set by us to indicate SVM is supported by the CPU. */
156	bool fSupported;
157	} svm;
158	/** Saved error from detection */
159	int32_t lLastError;
160
161	struct
162	{
163	uint32_t u32AMDFeatureECX;
164	uint32_t u32AMDFeatureEDX;
165	} cpuid;
166
167	/** If set, VT-x/AMD-V is enabled globally at init time, otherwise it's
168	* enabled and disabled each time it's used to execute guest code. */
169	bool fGlobalInit;
170	/** Indicates whether the host is suspending or not. We'll refuse a few
171	* actions when the host is being suspended to speed up the suspending and
172	* avoid trouble. */
173	volatile bool fSuspended;
174
175	/** Whether we've already initialized all CPUs.
176	* @remarks We could check the EnableAllCpusOnce state, but this is
177	* simpler and hopefully easier to understand. */
178	bool fEnabled;
179	/** Serialize initialization in HWACCMR0EnableAllCpus. */
180	RTONCE EnableAllCpusOnce;
181	} g_HvmR0;
182
183
184
185	/**
186	* Initializes a first return code structure.
187	*
188	* @param pFirstRc The structure to init.
189	*/
190	static void hmR0FirstRcInit(PHMR0FIRSTRC pFirstRc)
191	{
192	pFirstRc->rc = VINF_SUCCESS;
193	pFirstRc->idCpu = NIL_RTCPUID;
194	}
195
196
197	/**
198	* Try se the status code (success ignored).
199	*
200	* @param pFirstRc The first return code structure.
201	* @param rc The status code.
202	*/
203	static void hmR0FirstRcSetStatus(PHMR0FIRSTRC pFirstRc, int rc)
204	{
205	if ( RT_FAILURE(rc)
206	&& ASMAtomicCmpXchgS32(&pFirstRc->rc, rc, VINF_SUCCESS))
207	pFirstRc->idCpu = RTMpCpuId();
208	}
209
210
211	/**
212	* Get the status code of a first return code structure.
213	*
214	* @returns The status code; VINF_SUCCESS or error status, no informational or
215	* warning errors.
216	* @param pFirstRc The first return code structure.
217	*/
218	static int hmR0FirstRcGetStatus(PHMR0FIRSTRC pFirstRc)
219	{
220	return pFirstRc->rc;
221	}
222
223
224	#ifdef VBOX_STRICT
225	/**
226	* Get the CPU ID on which the failure status code was reported.
227	*
228	* @returns The CPU ID, NIL_RTCPUID if no failure was reported.
229	* @param pFirstRc The first return code structure.
230	*/
231	static RTCPUID hmR0FirstRcGetCpuId(PHMR0FIRSTRC pFirstRc)
232	{
233	return pFirstRc->idCpu;
234	}
235	#endif /* VBOX_STRICT */
236
237
238	/** @name Dummy callback handlers.
239	* @{ */
240
241	static DECLCALLBACK(int) hmR0DummyEnter(PVM pVM, PVMCPU pVCpu, PHMGLOBLCPUINFO pCpu)
242	{
243	NOREF(pVM); NOREF(pVCpu); NOREF(pCpu);
244	return VINF_SUCCESS;
245	}
246
247	static DECLCALLBACK(int) hmR0DummyLeave(PVM pVM, PVMCPU pVCpu, PCPUMCTX pCtx)
248	{
249	NOREF(pVM); NOREF(pVCpu); NOREF(pCtx);
250	return VINF_SUCCESS;
251	}
252
253	static DECLCALLBACK(int) hmR0DummyEnableCpu(PHMGLOBLCPUINFO pCpu, PVM pVM, void *pvCpuPage, RTHCPHYS HCPhysCpuPage)
254	{
255	NOREF(pCpu); NOREF(pVM); NOREF(pvCpuPage); NOREF(HCPhysCpuPage);
256	return VINF_SUCCESS;
257	}
258
259	static DECLCALLBACK(int) hmR0DummyDisableCpu(PHMGLOBLCPUINFO pCpu, void *pvCpuPage, RTHCPHYS HCPhysCpuPage)
260	{
261	NOREF(pCpu); NOREF(pvCpuPage); NOREF(HCPhysCpuPage);
262	return VINF_SUCCESS;
263	}
264
265	static DECLCALLBACK(int) hmR0DummyInitVM(PVM pVM)
266	{
267	NOREF(pVM);
268	return VINF_SUCCESS;
269	}
270
271	static DECLCALLBACK(int) hmR0DummyTermVM(PVM pVM)
272	{
273	NOREF(pVM);
274	return VINF_SUCCESS;
275	}
276
277	static DECLCALLBACK(int) hmR0DummySetupVM(PVM pVM)
278	{
279	NOREF(pVM);
280	return VINF_SUCCESS;
281	}
282
283	static DECLCALLBACK(int) hmR0DummyRunGuestCode(PVM pVM, PVMCPU pVCpu, PCPUMCTX pCtx)
284	{
285	NOREF(pVM); NOREF(pVCpu); NOREF(pCtx);
286	return VINF_SUCCESS;
287	}
288
289	static DECLCALLBACK(int) hmR0DummySaveHostState(PVM pVM, PVMCPU pVCpu)
290	{
291	NOREF(pVM); NOREF(pVCpu);
292	return VINF_SUCCESS;
293	}
294
295	static DECLCALLBACK(int) hmR0DummyLoadGuestState(PVM pVM, PVMCPU pVCpu, PCPUMCTX pCtx)
296	{
297	NOREF(pVM); NOREF(pVCpu); NOREF(pCtx);
298	return VINF_SUCCESS;
299	}
300
301	/** @} */
302
303
304	/**
305	* Checks if the CPU is subject to the "VMX-Preemption Timer Does Not Count
306	* Down at the Rate Specified" erratum.
307	*
308	* Errata names and related steppings:
309	* - BA86 - D0.
310	* - AAX65 - C2.
311	* - AAU65 - C2, K0.
312	* - AAO95 - B1.
313	* - AAT59 - C2.
314	* - AAK139 - D0.
315	* - AAM126 - C0, C1, D0.
316	* - AAN92 - B1.
317	* - AAJ124 - C0, D0.
318	*
319	* - AAP86 - B1.
320	*
321	* Steppings: B1, C0, C1, C2, D0, K0.
322	*
323	* @returns true if subject to it, false if not.
324	*/
325	static bool hmR0InitIntelIsSubjectToVmxPreemptionTimerErratum(void)
326	{
327	uint32_t u = ASMCpuId_EAX(1);
328	u &= ~(RT_BIT_32(14) \| RT_BIT_32(15) \| RT_BIT_32(28) \| RT_BIT_32(29) \| RT_BIT_32(30) \| RT_BIT_32(31));
329	if ( u == UINT32_C(0x000206E6) /* 323344.pdf - BA86 - D0 - Intel Xeon Processor 7500 Series */
330	\|\| u == UINT32_C(0x00020652) /* 323056.pdf - AAX65 - C2 - Intel Xeon Processor L3406 */
331	\|\| u == UINT32_C(0x00020652) /* 322814.pdf - AAT59 - C2 - Intel CoreTM i7-600, i5-500, i5-400 and i3-300 Mobile Processor Series */
332	\|\| u == UINT32_C(0x00020652) /* 322911.pdf - AAU65 - C2 - Intel CoreTM i5-600, i3-500 Desktop Processor Series and Intel Pentium Processor G6950 */
333	\|\| u == UINT32_C(0x00020655) /* 322911.pdf - AAU65 - K0 - Intel CoreTM i5-600, i3-500 Desktop Processor Series and Intel Pentium Processor G6950 */
334	\|\| u == UINT32_C(0x000106E5) /* 322373.pdf - AAO95 - B1 - Intel Xeon Processor 3400 Series */
335	\|\| u == UINT32_C(0x000106E5) /* 322166.pdf - AAN92 - B1 - Intel CoreTM i7-800 and i5-700 Desktop Processor Series */
336	\|\| u == UINT32_C(0x000106E5) /* 320767.pdf - AAP86 - B1 - Intel Core i7-900 Mobile Processor Extreme Edition Series, Intel Core i7-800 and i7-700 Mobile Processor Series */
337	\|\| u == UINT32_C(0x000106A0) /?321333.pdf - AAM126 - C0 - Intel Xeon Processor 3500 Series Specification /
338	\|\| u == UINT32_C(0x000106A1) /?321333.pdf - AAM126 - C1 - Intel Xeon Processor 3500 Series Specification /
339	\|\| u == UINT32_C(0x000106A4) /* 320836.pdf - AAJ124 - C0 - Intel Core i7-900 Desktop Processor Extreme Edition Series and Intel Core i7-900 Desktop Processor Series */
340	\|\| u == UINT32_C(0x000106A5) /* 321333.pdf - AAM126 - D0 - Intel Xeon Processor 3500 Series Specification */
341	\|\| u == UINT32_C(0x000106A5) /* 321324.pdf - AAK139 - D0 - Intel Xeon Processor 5500 Series Specification */
342	\|\| u == UINT32_C(0x000106A5) /* 320836.pdf - AAJ124 - D0 - Intel Core i7-900 Desktop Processor Extreme Edition Series and Intel Core i7-900 Desktop Processor Series */
343	)
344	return true;
345	return false;
346	}
347
348
349	/**
350	* Intel specific initialization code.
351	*
352	* @returns VBox status code (will only fail if out of memory).
353	*/
354	static int hmR0InitIntel(uint32_t u32FeaturesECX, uint32_t u32FeaturesEDX)
355	{
356	/*
357	* Check that all the required VT-x features are present.
358	* We also assume all VT-x-enabled CPUs support fxsave/fxrstor.
359	*/
360	if ( (u32FeaturesECX & X86_CPUID_FEATURE_ECX_VMX)
361	&& (u32FeaturesEDX & X86_CPUID_FEATURE_EDX_MSR)
362	&& (u32FeaturesEDX & X86_CPUID_FEATURE_EDX_FXSR)
363	)
364	{
365	/** @todo move this into a separate function. */
366	g_HvmR0.vmx.msr.feature_ctrl = ASMRdMsr(MSR_IA32_FEATURE_CONTROL);
367
368	/*
369	* First try use native kernel API for controlling VT-x.
370	* (This is only supported by some Mac OS X kernels atm.)
371	*/
372	int rc = g_HvmR0.lLastError = SUPR0EnableVTx(true /* fEnable */);
373	g_HvmR0.vmx.fUsingSUPR0EnableVTx = rc != VERR_NOT_SUPPORTED;
374	if (g_HvmR0.vmx.fUsingSUPR0EnableVTx)
375	{
376	AssertMsg(rc == VINF_SUCCESS \|\| rc == VERR_VMX_IN_VMX_ROOT_MODE \|\| rc == VERR_VMX_NO_VMX, ("%Rrc\n", rc));
377	if (RT_SUCCESS(rc))
378	{
379	g_HvmR0.vmx.fSupported = true;
380	rc = SUPR0EnableVTx(false /* fEnable */);
381	AssertRC(rc);
382	}
383	}
384	else
385	{
386	/* We need to check if VT-x has been properly initialized on all
387	CPUs. Some BIOSes do a lousy job. */
388	HMR0FIRSTRC FirstRc;
389	hmR0FirstRcInit(&FirstRc);
390	g_HvmR0.lLastError = RTMpOnAll(hmR0InitIntelCpu, &FirstRc, NULL);
391	if (RT_SUCCESS(g_HvmR0.lLastError))
392	g_HvmR0.lLastError = hmR0FirstRcGetStatus(&FirstRc);
393	}
394	if (RT_SUCCESS(g_HvmR0.lLastError))
395	{
396	/* Reread in case we've changed it. */
397	g_HvmR0.vmx.msr.feature_ctrl = ASMRdMsr(MSR_IA32_FEATURE_CONTROL);
398
399	if ( (g_HvmR0.vmx.msr.feature_ctrl & (MSR_IA32_FEATURE_CONTROL_VMXON \| MSR_IA32_FEATURE_CONTROL_LOCK))
400	== (MSR_IA32_FEATURE_CONTROL_VMXON \| MSR_IA32_FEATURE_CONTROL_LOCK))
401	{
402	/*
403	* Read all relevant MSR.
404	*/
405	g_HvmR0.vmx.msr.vmx_basic_info = ASMRdMsr(MSR_IA32_VMX_BASIC_INFO);
406	g_HvmR0.vmx.msr.vmx_pin_ctls.u = ASMRdMsr(MSR_IA32_VMX_PINBASED_CTLS);
407	g_HvmR0.vmx.msr.vmx_proc_ctls.u = ASMRdMsr(MSR_IA32_VMX_PROCBASED_CTLS);
408	g_HvmR0.vmx.msr.vmx_exit.u = ASMRdMsr(MSR_IA32_VMX_EXIT_CTLS);
409	g_HvmR0.vmx.msr.vmx_entry.u = ASMRdMsr(MSR_IA32_VMX_ENTRY_CTLS);
410	g_HvmR0.vmx.msr.vmx_misc = ASMRdMsr(MSR_IA32_VMX_MISC);
411	g_HvmR0.vmx.msr.vmx_cr0_fixed0 = ASMRdMsr(MSR_IA32_VMX_CR0_FIXED0);
412	g_HvmR0.vmx.msr.vmx_cr0_fixed1 = ASMRdMsr(MSR_IA32_VMX_CR0_FIXED1);
413	g_HvmR0.vmx.msr.vmx_cr4_fixed0 = ASMRdMsr(MSR_IA32_VMX_CR4_FIXED0);
414	g_HvmR0.vmx.msr.vmx_cr4_fixed1 = ASMRdMsr(MSR_IA32_VMX_CR4_FIXED1);
415	g_HvmR0.vmx.msr.vmx_vmcs_enum = ASMRdMsr(MSR_IA32_VMX_VMCS_ENUM);
416	g_HvmR0.vmx.hostCR4 = ASMGetCR4();
417	g_HvmR0.vmx.hostEFER = ASMRdMsr(MSR_K6_EFER);
418	/* VPID 16 bits ASID. */
419	g_HvmR0.uMaxASID = 0x10000; /* exclusive */
420
421	if (g_HvmR0.vmx.msr.vmx_proc_ctls.n.allowed1 & VMX_VMCS_CTRL_PROC_EXEC_USE_SECONDARY_EXEC_CTRL)
422	{
423	g_HvmR0.vmx.msr.vmx_proc_ctls2.u = ASMRdMsr(MSR_IA32_VMX_PROCBASED_CTLS2);
424	if ( g_HvmR0.vmx.msr.vmx_proc_ctls2.n.allowed1
425	& (VMX_VMCS_CTRL_PROC_EXEC2_EPT \| VMX_VMCS_CTRL_PROC_EXEC2_VPID))
426	g_HvmR0.vmx.msr.vmx_eptcaps = ASMRdMsr(MSR_IA32_VMX_EPT_CAPS);
427	}
428
429	if (!g_HvmR0.vmx.fUsingSUPR0EnableVTx)
430	{
431	/*
432	* Enter root mode
433	*/
434	RTR0MEMOBJ hScatchMemObj;
435	rc = RTR0MemObjAllocCont(&hScatchMemObj, PAGE_SIZE, true /* executable R0 mapping */);
436	if (RT_FAILURE(rc))
437	return rc;
438
439	void *pvScatchPage = RTR0MemObjAddress(hScatchMemObj);
440	RTHCPHYS HCPhysScratchPage = RTR0MemObjGetPagePhysAddr(hScatchMemObj, 0);
441	ASMMemZeroPage(pvScatchPage);
442
443	/* Set revision dword at the beginning of the structure. */
444	(uint32_t )pvScatchPage = MSR_IA32_VMX_BASIC_INFO_VMCS_ID(g_HvmR0.vmx.msr.vmx_basic_info);
445
446	/* Make sure we don't get rescheduled to another cpu during this probe. */
447	RTCCUINTREG fFlags = ASMIntDisableFlags();
448
449	/*
450	* Check CR4.VMXE
451	*/
452	g_HvmR0.vmx.hostCR4 = ASMGetCR4();
453	if (!(g_HvmR0.vmx.hostCR4 & X86_CR4_VMXE))
454	{
455	/* In theory this bit could be cleared behind our back. Which would cause
456	#UD faults when we try to execute the VMX instructions... */
457	ASMSetCR4(g_HvmR0.vmx.hostCR4 \| X86_CR4_VMXE);
458	}
459
460	/* Enter VMX Root Mode */
461	rc = VMXEnable(HCPhysScratchPage);
462	if (RT_SUCCESS(rc))
463	{
464	g_HvmR0.vmx.fSupported = true;
465	VMXDisable();
466
467	/*
468	* Check for the VMX-Preemption Timer and adjust for the * "VMX-Preemption
469	* Timer Does Not Count Down at the Rate Specified" erratum.
470	*/
471	if ( g_HvmR0.vmx.msr.vmx_pin_ctls.n.allowed1
472	& VMX_VMCS_CTRL_PIN_EXEC_CONTROLS_PREEMPT_TIMER)
473	{
474	g_HvmR0.vmx.fUsePreemptTimer = true;
475	g_HvmR0.vmx.cPreemptTimerShift = MSR_IA32_VMX_MISC_PREEMPT_TSC_BIT(g_HvmR0.vmx.msr.vmx_misc);
476	if (hmR0InitIntelIsSubjectToVmxPreemptionTimerErratum())
477	g_HvmR0.vmx.cPreemptTimerShift = 0; /* This is about right most of the time here. */
478	}
479	}
480	else
481	{
482	/*
483	* KVM leaves the CPU in VMX root mode. Not only is this not allowed,
484	* it will crash the host when we enter raw mode, because:
485	*
486	* (a) clearing X86_CR4_VMXE in CR4 causes a #GP (we no longer modify
487	* this bit), and
488	* (b) turning off paging causes a #GP (unavoidable when switching
489	* from long to 32 bits mode or 32 bits to PAE).
490	*
491	* They should fix their code, but until they do we simply refuse to run.
492	*/
493	g_HvmR0.lLastError = VERR_VMX_IN_VMX_ROOT_MODE;
494	}
495
496	/* Restore CR4 again; don't leave the X86_CR4_VMXE flag set
497	if it wasn't so before (some software could incorrectly
498	think it's in VMX mode). */
499	ASMSetCR4(g_HvmR0.vmx.hostCR4);
500	ASMSetFlags(fFlags);
501
502	RTR0MemObjFree(hScatchMemObj, false);
503	}
504	}
505	else
506	{
507	AssertFailed(); /* can't hit this case anymore */
508	g_HvmR0.lLastError = VERR_VMX_ILLEGAL_FEATURE_CONTROL_MSR;
509	}
510
511	/*
512	* Install the VT-x methods.
513	*/
514	if (g_HvmR0.vmx.fSupported)
515	{
516	g_HvmR0.pfnEnterSession = VMXR0Enter;
517	g_HvmR0.pfnLeaveSession = VMXR0Leave;
518	g_HvmR0.pfnSaveHostState = VMXR0SaveHostState;
519	g_HvmR0.pfnLoadGuestState = VMXR0LoadGuestState;
520	g_HvmR0.pfnRunGuestCode = VMXR0RunGuestCode;
521	g_HvmR0.pfnEnableCpu = VMXR0EnableCpu;
522	g_HvmR0.pfnDisableCpu = VMXR0DisableCpu;
523	g_HvmR0.pfnInitVM = VMXR0InitVM;
524	g_HvmR0.pfnTermVM = VMXR0TermVM;
525	g_HvmR0.pfnSetupVM = VMXR0SetupVM;
526	}
527	}
528	#ifdef LOG_ENABLED
529	else
530	SUPR0Printf("hmR0InitIntelCpu failed with rc=%d\n", g_HvmR0.lLastError);
531	#endif
532	}
533	else
534	g_HvmR0.lLastError = VERR_VMX_NO_VMX;
535	return VINF_SUCCESS;
536	}
537
538
539	/**
540	* AMD-specific initialization code.
541	*/
542	static void hmR0InitAmd(uint32_t u32FeaturesEDX)
543	{
544	/*
545	* Read all SVM MSRs if SVM is available. (same goes for RDMSR/WRMSR)
546	* We also assume all SVM-enabled CPUs support fxsave/fxrstor.
547	*/
548	if ( (g_HvmR0.cpuid.u32AMDFeatureECX & X86_CPUID_AMD_FEATURE_ECX_SVM)
549	&& (u32FeaturesEDX & X86_CPUID_FEATURE_EDX_MSR)
550	&& (u32FeaturesEDX & X86_CPUID_FEATURE_EDX_FXSR)
551	)
552	{
553	g_HvmR0.pfnEnterSession = SVMR0Enter;
554	g_HvmR0.pfnLeaveSession = SVMR0Leave;
555	g_HvmR0.pfnSaveHostState = SVMR0SaveHostState;
556	g_HvmR0.pfnLoadGuestState = SVMR0LoadGuestState;
557	g_HvmR0.pfnRunGuestCode = SVMR0RunGuestCode;
558	g_HvmR0.pfnEnableCpu = SVMR0EnableCpu;
559	g_HvmR0.pfnDisableCpu = SVMR0DisableCpu;
560	g_HvmR0.pfnInitVM = SVMR0InitVM;
561	g_HvmR0.pfnTermVM = SVMR0TermVM;
562	g_HvmR0.pfnSetupVM = SVMR0SetupVM;
563
564	/* Query AMD features. */
565	uint32_t u32Dummy;
566	ASMCpuId(0x8000000A, &g_HvmR0.svm.u32Rev, &g_HvmR0.uMaxASID,
567	&u32Dummy, &g_HvmR0.svm.u32Features);
568
569	/*
570	* We need to check if AMD-V has been properly initialized on all CPUs.
571	* Some BIOSes might do a poor job.
572	*/
573	HMR0FIRSTRC FirstRc;
574	hmR0FirstRcInit(&FirstRc);
575	int rc = RTMpOnAll(hmR0InitAmdCpu, &FirstRc, NULL);
576	AssertRC(rc);
577	if (RT_SUCCESS(rc))
578	rc = hmR0FirstRcGetStatus(&FirstRc);
579	#ifndef DEBUG_bird
580	AssertMsg(rc == VINF_SUCCESS \|\| rc == VERR_SVM_IN_USE,
581	("hmR0InitAmdCpu failed for cpu %d with rc=%Rrc\n", hmR0FirstRcGetCpuId(&FirstRc), rc));
582	#endif
583	if (RT_SUCCESS(rc))
584	{
585	/* Read the HWCR msr for diagnostics. */
586	g_HvmR0.svm.msrHWCR = ASMRdMsr(MSR_K8_HWCR);
587	g_HvmR0.svm.fSupported = true;
588	}
589	else
590	g_HvmR0.lLastError = rc;
591	}
592	else
593	g_HvmR0.lLastError = VERR_SVM_NO_SVM;
594	}
595
596
597	/**
598	* Does global Ring-0 HM initialization (at module init).
599	*
600	* @returns VBox status code.
601	*/
602	VMMR0DECL(int) HWACCMR0Init(void)
603	{
604	/*
605	* Initialize the globals.
606	*/
607	g_HvmR0.fEnabled = false;
608	static RTONCE s_OnceInit = RTONCE_INITIALIZER;
609	g_HvmR0.EnableAllCpusOnce = s_OnceInit;
610	for (unsigned i = 0; i < RT_ELEMENTS(g_HvmR0.aCpuInfo); i++)
611	g_HvmR0.aCpuInfo[i].hMemObj = NIL_RTR0MEMOBJ;
612
613	/* Fill in all callbacks with placeholders. */
614	g_HvmR0.pfnEnterSession = hmR0DummyEnter;
615	g_HvmR0.pfnLeaveSession = hmR0DummyLeave;
616	g_HvmR0.pfnSaveHostState = hmR0DummySaveHostState;
617	g_HvmR0.pfnLoadGuestState = hmR0DummyLoadGuestState;
618	g_HvmR0.pfnRunGuestCode = hmR0DummyRunGuestCode;
619	g_HvmR0.pfnEnableCpu = hmR0DummyEnableCpu;
620	g_HvmR0.pfnDisableCpu = hmR0DummyDisableCpu;
621	g_HvmR0.pfnInitVM = hmR0DummyInitVM;
622	g_HvmR0.pfnTermVM = hmR0DummyTermVM;
623	g_HvmR0.pfnSetupVM = hmR0DummySetupVM;
624
625	/* Default is global VT-x/AMD-V init. */
626	g_HvmR0.fGlobalInit = true;
627
628	/*
629	* Make sure aCpuInfo is big enough for all the CPUs on this system.
630	*/
631	if (RTMpGetArraySize() > RT_ELEMENTS(g_HvmR0.aCpuInfo))
632	{
633	LogRel(("HM: Too many real CPUs/cores/threads - %u, max %u\n", RTMpGetArraySize(), RT_ELEMENTS(g_HvmR0.aCpuInfo)));
634	return VERR_TOO_MANY_CPUS;
635	}
636
637	/*
638	* Check for VT-x and AMD-V capabilities.
639	*/
640	int rc;
641	if (ASMHasCpuId())
642	{
643	uint32_t u32FeaturesECX, u32FeaturesEDX;
644	uint32_t u32VendorEBX, u32VendorECX, u32VendorEDX;
645	uint32_t u32Dummy;
646
647	/* Standard features. */
648	ASMCpuId(0, &u32Dummy, &u32VendorEBX, &u32VendorECX, &u32VendorEDX);
649	ASMCpuId(1, &u32Dummy, &u32Dummy, &u32FeaturesECX, &u32FeaturesEDX);
650
651	/* Query AMD features. */
652	ASMCpuId(0x80000001, &u32Dummy, &u32Dummy,
653	&g_HvmR0.cpuid.u32AMDFeatureECX,
654	&g_HvmR0.cpuid.u32AMDFeatureEDX);
655
656	/* Go to CPU specific initialization code. */
657	if ( ( u32VendorEBX == X86_CPUID_VENDOR_INTEL_EBX
658	&& u32VendorECX == X86_CPUID_VENDOR_INTEL_ECX
659	&& u32VendorEDX == X86_CPUID_VENDOR_INTEL_EDX)
660	\|\| ( u32VendorEBX == X86_CPUID_VENDOR_VIA_EBX
661	&& u32VendorECX == X86_CPUID_VENDOR_VIA_ECX
662	&& u32VendorEDX == X86_CPUID_VENDOR_VIA_EDX))
663	{
664	rc = hmR0InitIntel(u32FeaturesECX, u32FeaturesEDX);
665	if (RT_FAILURE(rc))
666	return rc;
667	}
668	else if ( u32VendorEBX == X86_CPUID_VENDOR_AMD_EBX
669	&& u32VendorECX == X86_CPUID_VENDOR_AMD_ECX
670	&& u32VendorEDX == X86_CPUID_VENDOR_AMD_EDX)
671	hmR0InitAmd(u32FeaturesEDX);
672	else
673	g_HvmR0.lLastError = VERR_HWACCM_UNKNOWN_CPU;
674	}
675	else
676	g_HvmR0.lLastError = VERR_HWACCM_NO_CPUID;
677
678	/*
679	* Register notification callbacks that we can use to disable/enable CPUs
680	* when brought offline/online or suspending/resuming.
681	*/
682	if (!g_HvmR0.vmx.fUsingSUPR0EnableVTx)
683	{
684	rc = RTMpNotificationRegister(hmR0MpEventCallback, NULL);
685	AssertRC(rc);
686
687	rc = RTPowerNotificationRegister(hmR0PowerCallback, NULL);
688	AssertRC(rc);
689	}
690
691	/* We return success here because module init shall not fail if HM
692	fails to initialize. */
693	return VINF_SUCCESS;
694	}
695
696
697	/**
698	* Does global Ring-0 HM termination (at module termination).
699	*
700	* @returns VBox status code.
701	*/
702	VMMR0DECL(int) HWACCMR0Term(void)
703	{
704	int rc;
705	if ( g_HvmR0.vmx.fSupported
706	&& g_HvmR0.vmx.fUsingSUPR0EnableVTx)
707	{
708	/*
709	* Simple if the host OS manages VT-x.
710	*/
711	Assert(g_HvmR0.fGlobalInit);
712	rc = SUPR0EnableVTx(false /* fEnable */);
713
714	for (unsigned iCpu = 0; iCpu < RT_ELEMENTS(g_HvmR0.aCpuInfo); iCpu++)
715	{
716	g_HvmR0.aCpuInfo[iCpu].fConfigured = false;
717	Assert(g_HvmR0.aCpuInfo[iCpu].hMemObj == NIL_RTR0MEMOBJ);
718	}
719	}
720	else
721	{
722	Assert(!g_HvmR0.vmx.fUsingSUPR0EnableVTx);
723	if (!g_HvmR0.vmx.fUsingSUPR0EnableVTx)
724	{
725	/* Doesn't really matter if this fails. */
726	rc = RTMpNotificationDeregister(hmR0MpEventCallback, NULL); AssertRC(rc);
727	rc = RTPowerNotificationDeregister(hmR0PowerCallback, NULL); AssertRC(rc);
728	}
729	else
730	rc = VINF_SUCCESS;
731
732	/*
733	* Disable VT-x/AMD-V on all CPUs if we enabled it before.
734	*/
735	if (g_HvmR0.fGlobalInit)
736	{
737	HMR0FIRSTRC FirstRc;
738	hmR0FirstRcInit(&FirstRc);
739	rc = RTMpOnAll(hmR0DisableCpuCallback, NULL, &FirstRc);
740	Assert(RT_SUCCESS(rc) \|\| rc == VERR_NOT_SUPPORTED);
741	if (RT_SUCCESS(rc))
742	{
743	rc = hmR0FirstRcGetStatus(&FirstRc);
744	AssertMsgRC(rc, ("%u: %Rrc\n", hmR0FirstRcGetCpuId(&FirstRc), rc));
745	}
746	}
747
748	/*
749	* Free the per-cpu pages used for VT-x and AMD-V.
750	*/
751	for (unsigned i = 0; i < RT_ELEMENTS(g_HvmR0.aCpuInfo); i++)
752	{
753	if (g_HvmR0.aCpuInfo[i].hMemObj != NIL_RTR0MEMOBJ)
754	{
755	RTR0MemObjFree(g_HvmR0.aCpuInfo[i].hMemObj, false);
756	g_HvmR0.aCpuInfo[i].hMemObj = NIL_RTR0MEMOBJ;
757	}
758	}
759	}
760	return rc;
761	}
762
763
764	/**
765	* Worker function used by hmR0PowerCallback and HWACCMR0Init to initalize
766	* VT-x on a CPU.
767	*
768	* @param idCpu The identifier for the CPU the function is called on.
769	* @param pvUser1 Pointer to the first RC structure.
770	* @param pvUser2 Ignored.
771	*/
772	static DECLCALLBACK(void) hmR0InitIntelCpu(RTCPUID idCpu, void pvUser1, void pvUser2)
773	{
774	PHMR0FIRSTRC pFirstRc = (PHMR0FIRSTRC)pvUser1;
775	Assert(idCpu == (RTCPUID)RTMpCpuIdToSetIndex(idCpu)); /// @todo fix idCpu == index assumption (rainy day)
776	NOREF(pvUser2);
777
778	/*
779	* Both the LOCK and VMXON bit must be set; otherwise VMXON will generate a #GP.
780	* Once the lock bit is set, this MSR can no longer be modified.
781	*/
782	uint64_t fFC = ASMRdMsr(MSR_IA32_FEATURE_CONTROL);
783	if ( !(fFC & (MSR_IA32_FEATURE_CONTROL_VMXON \| MSR_IA32_FEATURE_CONTROL_LOCK))
784	\|\| ( (fFC & (MSR_IA32_FEATURE_CONTROL_VMXON \| MSR_IA32_FEATURE_CONTROL_LOCK))
785	== MSR_IA32_FEATURE_CONTROL_VMXON ) /* Some BIOSes forget to set the locked bit. */
786	)
787	{
788	/* MSR is not yet locked; we can change it ourselves here. */
789	ASMWrMsr(MSR_IA32_FEATURE_CONTROL,
790	g_HvmR0.vmx.msr.feature_ctrl \| MSR_IA32_FEATURE_CONTROL_VMXON \| MSR_IA32_FEATURE_CONTROL_LOCK);
791	fFC = ASMRdMsr(MSR_IA32_FEATURE_CONTROL);
792	}
793
794	int rc;
795	if ( (fFC & (MSR_IA32_FEATURE_CONTROL_VMXON \| MSR_IA32_FEATURE_CONTROL_LOCK))
796	== (MSR_IA32_FEATURE_CONTROL_VMXON \| MSR_IA32_FEATURE_CONTROL_LOCK))
797	rc = VINF_SUCCESS;
798	else
799	rc = VERR_VMX_MSR_LOCKED_OR_DISABLED;
800
801	hmR0FirstRcSetStatus(pFirstRc, rc);
802	}
803
804
805	/**
806	* Worker function used by hmR0PowerCallback and HWACCMR0Init to initalize
807	* VT-x / AMD-V on a CPU.
808	*
809	* @param idCpu The identifier for the CPU the function is called on.
810	* @param pvUser1 Pointer to the first RC structure.
811	* @param pvUser2 Ignored.
812	*/
813	static DECLCALLBACK(void) hmR0InitAmdCpu(RTCPUID idCpu, void pvUser1, void pvUser2)
814	{
815	PHMR0FIRSTRC pFirstRc = (PHMR0FIRSTRC)pvUser1;
816	Assert(idCpu == (RTCPUID)RTMpCpuIdToSetIndex(idCpu)); /// @todo fix idCpu == index assumption (rainy day)
817	NOREF(pvUser2);
818
819	/* Check if SVM is disabled. */
820	int rc;
821	uint64_t fVmCr = ASMRdMsr(MSR_K8_VM_CR);
822	if (!(fVmCr & MSR_K8_VM_CR_SVM_DISABLE))
823	{
824	/* Turn on SVM in the EFER MSR. */
825	uint64_t fEfer = ASMRdMsr(MSR_K6_EFER);
826	if (fEfer & MSR_K6_EFER_SVME)
827	rc = VERR_SVM_IN_USE;
828	else
829	{
830	ASMWrMsr(MSR_K6_EFER, fEfer \| MSR_K6_EFER_SVME);
831
832	/* Paranoia. */
833	fEfer = ASMRdMsr(MSR_K6_EFER);
834	if (fEfer & MSR_K6_EFER_SVME)
835	{
836	/* Restore previous value. */
837	ASMWrMsr(MSR_K6_EFER, fEfer & ~MSR_K6_EFER_SVME);
838	rc = VINF_SUCCESS;
839	}
840	else
841	rc = VERR_SVM_ILLEGAL_EFER_MSR;
842	}
843	}
844	else
845	rc = VERR_SVM_DISABLED;
846
847	hmR0FirstRcSetStatus(pFirstRc, rc);
848	}
849
850
851
852	/**
853	* Disable VT-x or AMD-V on the current CPU
854	*
855	* @returns VBox status code.
856	* @param pVM Pointer to the VM (can be 0).
857	* @param idCpu The identifier for the CPU the function is called on.
858	*/
859	static int hmR0EnableCpu(PVM pVM, RTCPUID idCpu)
860	{
861	PHMGLOBLCPUINFO pCpu = &g_HvmR0.aCpuInfo[idCpu];
862
863	Assert(!g_HvmR0.vmx.fSupported \|\| !g_HvmR0.vmx.fUsingSUPR0EnableVTx);
864	Assert(idCpu == (RTCPUID)RTMpCpuIdToSetIndex(idCpu)); /// @todo fix idCpu == index assumption (rainy day)
865	Assert(idCpu < RT_ELEMENTS(g_HvmR0.aCpuInfo));
866	Assert(!pCpu->fConfigured);
867	Assert(!g_HvmR0.fGlobalInit \|\| ASMAtomicReadBool(&pCpu->fInUse) == false);
868
869	pCpu->idCpu = idCpu;
870	pCpu->uCurrentASID = 0; /* we'll aways increment this the first time (host uses ASID 0) */
871	/* Do NOT reset cTLBFlushes here, see @bugref{6255}. */
872
873	/* Should never happen */
874	AssertLogRelMsgReturn(pCpu->hMemObj != NIL_RTR0MEMOBJ, ("hmR0EnableCpu failed idCpu=%u.\n", idCpu), VERR_HM_IPE_1);
875
876	void *pvCpuPage = RTR0MemObjAddress(pCpu->hMemObj);
877	RTHCPHYS HCPhysCpuPage = RTR0MemObjGetPagePhysAddr(pCpu->hMemObj, 0);
878
879	int rc = g_HvmR0.pfnEnableCpu(pCpu, pVM, pvCpuPage, HCPhysCpuPage);
880	AssertRC(rc);
881	if (RT_SUCCESS(rc))
882	pCpu->fConfigured = true;
883
884	return rc;
885	}
886
887
888	/**
889	* Worker function passed to RTMpOnAll, RTMpOnOthers and RTMpOnSpecific that
890	* is to be called on the target cpus.
891	*
892	* @param idCpu The identifier for the CPU the function is called on.
893	* @param pvUser1 The 1st user argument.
894	* @param pvUser2 The 2nd user argument.
895	*/
896	static DECLCALLBACK(void) hmR0EnableCpuCallback(RTCPUID idCpu, void pvUser1, void pvUser2)
897	{
898	PVM pVM = (PVM)pvUser1; /* can be NULL! */
899	PHMR0FIRSTRC pFirstRc = (PHMR0FIRSTRC)pvUser2;
900	AssertReturnVoid(g_HvmR0.fGlobalInit);
901	hmR0FirstRcSetStatus(pFirstRc, hmR0EnableCpu(pVM, idCpu));
902	}
903
904
905	/**
906	* RTOnce callback employed by HWACCMR0EnableAllCpus.
907	*
908	* @returns VBox status code.
909	* @param pvUser Pointer to the VM.
910	* @param pvUserIgnore NULL, ignored.
911	*/
912	static DECLCALLBACK(int32_t) hmR0EnableAllCpuOnce(void pvUser, void pvUserIgnore)
913	{
914	PVM pVM = (PVM)pvUser;
915	NOREF(pvUserIgnore);
916
917	/*
918	* Indicate that we've initialized.
919	*
920	* Note! There is a potential race between this function and the suspend
921	* notification. Kind of unlikely though, so ignored for now.
922	*/
923	AssertReturn(!g_HvmR0.fEnabled, VERR_HM_ALREADY_ENABLED_IPE);
924	ASMAtomicWriteBool(&g_HvmR0.fEnabled, true);
925
926	/*
927	* The global init variable is set by the first VM.
928	*/
929	g_HvmR0.fGlobalInit = pVM->hwaccm.s.fGlobalInit;
930
931	int rc;
932	if ( g_HvmR0.vmx.fSupported
933	&& g_HvmR0.vmx.fUsingSUPR0EnableVTx)
934	{
935	/*
936	* Global VT-x initialization API (only darwin for now).
937	*/
938	rc = SUPR0EnableVTx(true /* fEnable */);
939	if (RT_SUCCESS(rc))
940	{
941	for (unsigned iCpu = 0; iCpu < RT_ELEMENTS(g_HvmR0.aCpuInfo); iCpu++)
942	{
943	g_HvmR0.aCpuInfo[iCpu].fConfigured = true;
944	g_HvmR0.aCpuInfo[iCpu].cTLBFlushes = 0;
945	Assert(g_HvmR0.aCpuInfo[iCpu].hMemObj == NIL_RTR0MEMOBJ);
946	}
947
948	/* If the host provides a VT-x init API, then we'll rely on that for global init. */
949	g_HvmR0.fGlobalInit = pVM->hwaccm.s.fGlobalInit = true;
950	}
951	else
952	AssertMsgFailed(("hmR0EnableAllCpuOnce/SUPR0EnableVTx: rc=%Rrc\n", rc));
953	}
954	else
955	{
956	/*
957	* We're doing the job ourselves.
958	*/
959	/* Allocate one page per cpu for the global vt-x and amd-v pages */
960	for (unsigned i = 0; i < RT_ELEMENTS(g_HvmR0.aCpuInfo); i++)
961	{
962	Assert(g_HvmR0.aCpuInfo[i].hMemObj == NIL_RTR0MEMOBJ);
963
964	if (RTMpIsCpuPossible(RTMpCpuIdFromSetIndex(i)))
965	{
966	rc = RTR0MemObjAllocCont(&g_HvmR0.aCpuInfo[i].hMemObj, PAGE_SIZE, true /* executable R0 mapping */);
967	AssertLogRelRCReturn(rc, rc);
968
969	void *pvR0 = RTR0MemObjAddress(g_HvmR0.aCpuInfo[i].hMemObj); Assert(pvR0);
970	ASMMemZeroPage(pvR0);
971	}
972	g_HvmR0.aCpuInfo[i].fConfigured = false;
973	g_HvmR0.aCpuInfo[i].cTLBFlushes = 0;
974	}
975
976	if (g_HvmR0.fGlobalInit)
977	{
978	/* First time, so initialize each cpu/core. */
979	HMR0FIRSTRC FirstRc;
980	hmR0FirstRcInit(&FirstRc);
981	rc = RTMpOnAll(hmR0EnableCpuCallback, (void *)pVM, &FirstRc);
982	if (RT_SUCCESS(rc))
983	rc = hmR0FirstRcGetStatus(&FirstRc);
984	AssertMsgRC(rc, ("hmR0EnableAllCpuOnce failed for cpu %d with rc=%d\n", hmR0FirstRcGetCpuId(&FirstRc), rc));
985	}
986	else
987	rc = VINF_SUCCESS;
988	}
989
990	return rc;
991	}
992
993
994	/**
995	* Sets up HWACCM on all cpus.
996	*
997	* @returns VBox status code.
998	* @param pVM Pointer to the VM.
999	*/
1000	VMMR0DECL(int) HWACCMR0EnableAllCpus(PVM pVM)
1001	{
1002	/* Make sure we don't touch hwaccm after we've disabled hwaccm in
1003	preparation of a suspend. */
1004	if (ASMAtomicReadBool(&g_HvmR0.fSuspended))
1005	return VERR_HWACCM_SUSPEND_PENDING;
1006
1007	return RTOnce(&g_HvmR0.EnableAllCpusOnce, hmR0EnableAllCpuOnce, pVM, NULL);
1008	}
1009
1010
1011	/**
1012	* Disable VT-x or AMD-V on the current CPU.
1013	*
1014	* @returns VBox status code.
1015	* @param idCpu The identifier for the CPU the function is called on.
1016	*/
1017	static int hmR0DisableCpu(RTCPUID idCpu)
1018	{
1019	PHMGLOBLCPUINFO pCpu = &g_HvmR0.aCpuInfo[idCpu];
1020
1021	Assert(!g_HvmR0.vmx.fSupported \|\| !g_HvmR0.vmx.fUsingSUPR0EnableVTx);
1022	Assert(idCpu == (RTCPUID)RTMpCpuIdToSetIndex(idCpu)); /// @todo fix idCpu == index assumption (rainy day)
1023	Assert(idCpu < RT_ELEMENTS(g_HvmR0.aCpuInfo));
1024	Assert(!g_HvmR0.fGlobalInit \|\| ASMAtomicReadBool(&pCpu->fInUse) == false);
1025	Assert(!pCpu->fConfigured \|\| pCpu->hMemObj != NIL_RTR0MEMOBJ);
1026
1027	if (pCpu->hMemObj == NIL_RTR0MEMOBJ)
1028	return pCpu->fConfigured ? VERR_NO_MEMORY : VINF_SUCCESS /* not initialized. */;
1029
1030	int rc;
1031	if (pCpu->fConfigured)
1032	{
1033	void *pvCpuPage = RTR0MemObjAddress(pCpu->hMemObj);
1034	RTHCPHYS HCPhysCpuPage = RTR0MemObjGetPagePhysAddr(pCpu->hMemObj, 0);
1035	if (idCpu == RTMpCpuId())
1036	{
1037	rc = g_HvmR0.pfnDisableCpu(pCpu, pvCpuPage, HCPhysCpuPage);
1038	AssertRC(rc);
1039	}
1040	else
1041	{
1042	pCpu->fIgnoreAMDVInUseError = true;
1043	rc = VINF_SUCCESS;
1044	}
1045
1046	pCpu->fConfigured = false;
1047	}
1048	else
1049	rc = VINF_SUCCESS; /* nothing to do */
1050
1051	pCpu->uCurrentASID = 0;
1052	return rc;
1053	}
1054
1055
1056	/**
1057	* Worker function passed to RTMpOnAll, RTMpOnOthers and RTMpOnSpecific that
1058	* is to be called on the target cpus.
1059	*
1060	* @param idCpu The identifier for the CPU the function is called on.
1061	* @param pvUser1 The 1st user argument.
1062	* @param pvUser2 The 2nd user argument.
1063	*/
1064	static DECLCALLBACK(void) hmR0DisableCpuCallback(RTCPUID idCpu, void pvUser1, void pvUser2)
1065	{
1066	PHMR0FIRSTRC pFirstRc = (PHMR0FIRSTRC)pvUser2; NOREF(pvUser1);
1067	AssertReturnVoid(g_HvmR0.fGlobalInit);
1068	hmR0FirstRcSetStatus(pFirstRc, hmR0DisableCpu(idCpu));
1069	}
1070
1071
1072	/**
1073	* Callback function invoked when a cpu goes online or offline.
1074	*
1075	* @param enmEvent The Mp event.
1076	* @param idCpu The identifier for the CPU the function is called on.
1077	* @param pvData Opaque data (PVM pointer).
1078	*/
1079	static DECLCALLBACK(void) hmR0MpEventCallback(RTMPEVENT enmEvent, RTCPUID idCpu, void *pvData)
1080	{
1081	NOREF(pvData);
1082
1083	/*
1084	* We only care about uninitializing a CPU that is going offline. When a
1085	* CPU comes online, the initialization is done lazily in HWACCMR0Enter().
1086	*/
1087	Assert(!RTThreadPreemptIsEnabled(NIL_RTTHREAD));
1088	switch (enmEvent)
1089	{
1090	case RTMPEVENT_OFFLINE:
1091	{
1092	int rc = hmR0DisableCpu(idCpu);
1093	AssertRC(rc);
1094	break;
1095	}
1096
1097	default:
1098	break;
1099	}
1100	}
1101
1102
1103	/**
1104	* Called whenever a system power state change occurs.
1105	*
1106	* @param enmEvent The Power event.
1107	* @param pvUser User argument.
1108	*/
1109	static DECLCALLBACK(void) hmR0PowerCallback(RTPOWEREVENT enmEvent, void *pvUser)
1110	{
1111	NOREF(pvUser);
1112	Assert(!g_HvmR0.vmx.fSupported \|\| !g_HvmR0.vmx.fUsingSUPR0EnableVTx);
1113
1114	#ifdef LOG_ENABLED
1115	if (enmEvent == RTPOWEREVENT_SUSPEND)
1116	SUPR0Printf("hmR0PowerCallback RTPOWEREVENT_SUSPEND\n");
1117	else
1118	SUPR0Printf("hmR0PowerCallback RTPOWEREVENT_RESUME\n");
1119	#endif
1120
1121	if (enmEvent == RTPOWEREVENT_SUSPEND)
1122	ASMAtomicWriteBool(&g_HvmR0.fSuspended, true);
1123
1124	if (g_HvmR0.fEnabled)
1125	{
1126	int rc;
1127	HMR0FIRSTRC FirstRc;
1128	hmR0FirstRcInit(&FirstRc);
1129
1130	if (enmEvent == RTPOWEREVENT_SUSPEND)
1131	{
1132	if (g_HvmR0.fGlobalInit)
1133	{
1134	/* Turn off VT-x or AMD-V on all CPUs. */
1135	rc = RTMpOnAll(hmR0DisableCpuCallback, NULL, &FirstRc);
1136	Assert(RT_SUCCESS(rc) \|\| rc == VERR_NOT_SUPPORTED);
1137	}
1138	/* else nothing to do here for the local init case */
1139	}
1140	else
1141	{
1142	/* Reinit the CPUs from scratch as the suspend state might have
1143	messed with the MSRs. (lousy BIOSes as usual) */
1144	if (g_HvmR0.vmx.fSupported)
1145	rc = RTMpOnAll(hmR0InitIntelCpu, &FirstRc, NULL);
1146	else
1147	rc = RTMpOnAll(hmR0InitAmdCpu, &FirstRc, NULL);
1148	Assert(RT_SUCCESS(rc) \|\| rc == VERR_NOT_SUPPORTED);
1149	if (RT_SUCCESS(rc))
1150	rc = hmR0FirstRcGetStatus(&FirstRc);
1151	#ifdef LOG_ENABLED
1152	if (RT_FAILURE(rc))
1153	SUPR0Printf("hmR0PowerCallback hmR0InitXxxCpu failed with %Rc\n", rc);
1154	#endif
1155	if (g_HvmR0.fGlobalInit)
1156	{
1157	/* Turn VT-x or AMD-V back on on all CPUs. */
1158	rc = RTMpOnAll(hmR0EnableCpuCallback, NULL, &FirstRc /* output ignored */);
1159	Assert(RT_SUCCESS(rc) \|\| rc == VERR_NOT_SUPPORTED);
1160	}
1161	/* else nothing to do here for the local init case */
1162	}
1163	}
1164
1165	if (enmEvent == RTPOWEREVENT_RESUME)
1166	ASMAtomicWriteBool(&g_HvmR0.fSuspended, false);
1167	}
1168
1169
1170	/**
1171	* Does Ring-0 per VM HM initialization.
1172	*
1173	* This will copy HM global into the VM structure and call the CPU specific
1174	* init routine which will allocate resources for each virtual CPU and such.
1175	*
1176	* @returns VBox status code.
1177	* @param pVM Pointer to the VM.
1178	*/
1179	VMMR0DECL(int) HWACCMR0InitVM(PVM pVM)
1180	{
1181	AssertReturn(pVM, VERR_INVALID_PARAMETER);
1182
1183	#ifdef LOG_ENABLED
1184	SUPR0Printf("HWACCMR0InitVM: %p\n", pVM);
1185	#endif
1186
1187	/* Make sure we don't touch hwaccm after we've disabled hwaccm in preparation of a suspend. */
1188	if (ASMAtomicReadBool(&g_HvmR0.fSuspended))
1189	return VERR_HWACCM_SUSPEND_PENDING;
1190
1191	/*
1192	* Copy globals to the VM structure.
1193	*/
1194	pVM->hwaccm.s.vmx.fSupported = g_HvmR0.vmx.fSupported;
1195	pVM->hwaccm.s.svm.fSupported = g_HvmR0.svm.fSupported;
1196
1197	pVM->hwaccm.s.vmx.fUsePreemptTimer = g_HvmR0.vmx.fUsePreemptTimer;
1198	pVM->hwaccm.s.vmx.cPreemptTimerShift = g_HvmR0.vmx.cPreemptTimerShift;
1199	pVM->hwaccm.s.vmx.msr.feature_ctrl = g_HvmR0.vmx.msr.feature_ctrl;
1200	pVM->hwaccm.s.vmx.hostCR4 = g_HvmR0.vmx.hostCR4;
1201	pVM->hwaccm.s.vmx.hostEFER = g_HvmR0.vmx.hostEFER;
1202	pVM->hwaccm.s.vmx.msr.vmx_basic_info = g_HvmR0.vmx.msr.vmx_basic_info;
1203	pVM->hwaccm.s.vmx.msr.vmx_pin_ctls = g_HvmR0.vmx.msr.vmx_pin_ctls;
1204	pVM->hwaccm.s.vmx.msr.vmx_proc_ctls = g_HvmR0.vmx.msr.vmx_proc_ctls;
1205	pVM->hwaccm.s.vmx.msr.vmx_proc_ctls2 = g_HvmR0.vmx.msr.vmx_proc_ctls2;
1206	pVM->hwaccm.s.vmx.msr.vmx_exit = g_HvmR0.vmx.msr.vmx_exit;
1207	pVM->hwaccm.s.vmx.msr.vmx_entry = g_HvmR0.vmx.msr.vmx_entry;
1208	pVM->hwaccm.s.vmx.msr.vmx_misc = g_HvmR0.vmx.msr.vmx_misc;
1209	pVM->hwaccm.s.vmx.msr.vmx_cr0_fixed0 = g_HvmR0.vmx.msr.vmx_cr0_fixed0;
1210	pVM->hwaccm.s.vmx.msr.vmx_cr0_fixed1 = g_HvmR0.vmx.msr.vmx_cr0_fixed1;
1211	pVM->hwaccm.s.vmx.msr.vmx_cr4_fixed0 = g_HvmR0.vmx.msr.vmx_cr4_fixed0;
1212	pVM->hwaccm.s.vmx.msr.vmx_cr4_fixed1 = g_HvmR0.vmx.msr.vmx_cr4_fixed1;
1213	pVM->hwaccm.s.vmx.msr.vmx_vmcs_enum = g_HvmR0.vmx.msr.vmx_vmcs_enum;
1214	pVM->hwaccm.s.vmx.msr.vmx_eptcaps = g_HvmR0.vmx.msr.vmx_eptcaps;
1215	pVM->hwaccm.s.svm.msrHWCR = g_HvmR0.svm.msrHWCR;
1216	pVM->hwaccm.s.svm.u32Rev = g_HvmR0.svm.u32Rev;
1217	pVM->hwaccm.s.svm.u32Features = g_HvmR0.svm.u32Features;
1218	pVM->hwaccm.s.cpuid.u32AMDFeatureECX = g_HvmR0.cpuid.u32AMDFeatureECX;
1219	pVM->hwaccm.s.cpuid.u32AMDFeatureEDX = g_HvmR0.cpuid.u32AMDFeatureEDX;
1220	pVM->hwaccm.s.lLastError = g_HvmR0.lLastError;
1221
1222	pVM->hwaccm.s.uMaxASID = g_HvmR0.uMaxASID;
1223
1224
1225	if (!pVM->hwaccm.s.cMaxResumeLoops) /* allow ring-3 overrides */
1226	{
1227	pVM->hwaccm.s.cMaxResumeLoops = 1024;
1228	#ifdef VBOX_WITH_VMMR0_DISABLE_PREEMPTION
1229	if (RTThreadPreemptIsPendingTrusty())
1230	pVM->hwaccm.s.cMaxResumeLoops = 8192;
1231	#endif
1232	}
1233
1234	/*
1235	* Initialize some per CPU fields.
1236	*/
1237	for (VMCPUID i = 0; i < pVM->cCpus; i++)
1238	{
1239	PVMCPU pVCpu = &pVM->aCpus[i];
1240
1241	pVCpu->hwaccm.s.idEnteredCpu = NIL_RTCPUID;
1242
1243	/* Invalidate the last cpu we were running on. */
1244	pVCpu->hwaccm.s.idLastCpu = NIL_RTCPUID;
1245
1246	/* We'll aways increment this the first time (host uses ASID 0) */
1247	pVCpu->hwaccm.s.uCurrentASID = 0;
1248	}
1249
1250	/*
1251	* Call the hardware specific initialization method.
1252	*
1253	* Note! The fInUse handling here isn't correct as we can we can be
1254	* rescheduled to a different cpu, but the fInUse case is mostly for
1255	* debugging... Disabling preemption isn't an option when allocating
1256	* memory, so we'll let it slip for now.
1257	*/
1258	RTCCUINTREG fFlags = ASMIntDisableFlags();
1259	PHMGLOBLCPUINFO pCpu = HWACCMR0GetCurrentCpu();
1260	ASMAtomicWriteBool(&pCpu->fInUse, true);
1261	ASMSetFlags(fFlags);
1262
1263	int rc = g_HvmR0.pfnInitVM(pVM);
1264
1265	ASMAtomicWriteBool(&pCpu->fInUse, false);
1266	return rc;
1267	}
1268
1269
1270	/**
1271	* Does Ring-0 per VM HM termination.
1272	*
1273	* @returns VBox status code.
1274	* @param pVM Pointer to the VM.
1275	*/
1276	VMMR0DECL(int) HWACCMR0TermVM(PVM pVM)
1277	{
1278	Log(("HWACCMR0TermVM: %p\n", pVM));
1279	AssertReturn(pVM, VERR_INVALID_PARAMETER);
1280
1281	/* Make sure we don't touch hm after we've disabled hwaccm in preparation
1282	of a suspend. */
1283	/** @todo r=bird: This cannot be right, the termination functions are
1284	* just freeing memory and resetting pVM/pVCpu members...
1285	* ==> memory leak. */
1286	AssertReturn(!ASMAtomicReadBool(&g_HvmR0.fSuspended), VERR_HWACCM_SUSPEND_PENDING);
1287
1288	/*
1289	* Call the hardware specific method.
1290	*
1291	* Note! Not correct as we can be rescheduled to a different cpu, but the
1292	* fInUse case is mostly for debugging.
1293	*/
1294	RTCCUINTREG fFlags = ASMIntDisableFlags();
1295	PHMGLOBLCPUINFO pCpu = HWACCMR0GetCurrentCpu();
1296	ASMAtomicWriteBool(&pCpu->fInUse, true);
1297	ASMSetFlags(fFlags);
1298
1299	int rc = g_HvmR0.pfnTermVM(pVM);
1300
1301	ASMAtomicWriteBool(&pCpu->fInUse, false);
1302	return rc;
1303	}
1304
1305
1306	/**
1307	* Sets up a VT-x or AMD-V session.
1308	*
1309	* This is mostly about setting up the hardware VM state.
1310	*
1311	* @returns VBox status code.
1312	* @param pVM Pointer to the VM.
1313	*/
1314	VMMR0DECL(int) HWACCMR0SetupVM(PVM pVM)
1315	{
1316	Log(("HWACCMR0SetupVM: %p\n", pVM));
1317	AssertReturn(pVM, VERR_INVALID_PARAMETER);
1318
1319	/* Make sure we don't touch hwaccm after we've disabled hwaccm in
1320	preparation of a suspend. */
1321	AssertReturn(!ASMAtomicReadBool(&g_HvmR0.fSuspended), VERR_HWACCM_SUSPEND_PENDING);
1322
1323
1324	/*
1325	* Call the hardware specific setup VM method. This requires the CPU to be
1326	* enabled for AMD-V/VT-x and preemption to be prevented.
1327	*/
1328	RTCCUINTREG fFlags = ASMIntDisableFlags();
1329	RTCPUID idCpu = RTMpCpuId();
1330	PHMGLOBLCPUINFO pCpu = &g_HvmR0.aCpuInfo[idCpu];
1331	ASMAtomicWriteBool(&pCpu->fInUse, true);
1332
1333	/* On first entry we'll sync everything. */
1334	for (VMCPUID i = 0; i < pVM->cCpus; i++)
1335	pVM->aCpus[i].hwaccm.s.fContextUseFlags = HWACCM_CHANGED_ALL;
1336
1337	/* Enable VT-x or AMD-V if local init is required. */
1338	int rc;
1339	if (!g_HvmR0.fGlobalInit)
1340	{
1341	rc = hmR0EnableCpu(pVM, idCpu);
1342	AssertReturnStmt(RT_SUCCESS_NP(rc), ASMSetFlags(fFlags), rc);
1343	}
1344
1345	/* Setup VT-x or AMD-V. */
1346	rc = g_HvmR0.pfnSetupVM(pVM);
1347
1348	/* Disable VT-x or AMD-V if local init was done before. */
1349	if (!g_HvmR0.fGlobalInit)
1350	{
1351	int rc2 = hmR0DisableCpu(idCpu);
1352	AssertRC(rc2);
1353	}
1354
1355	ASMAtomicWriteBool(&pCpu->fInUse, false);
1356	ASMSetFlags(fFlags);
1357
1358	return rc;
1359	}
1360
1361
1362	/**
1363	* Enters the VT-x or AMD-V session.
1364	*
1365	* @returns VBox status code.
1366	* @param pVM Pointer to the VM.
1367	* @param pVCpu Pointer to the VMCPU.
1368	*
1369	* @remarks This is called with preemption disabled.
1370	*/
1371	VMMR0DECL(int) HWACCMR0Enter(PVM pVM, PVMCPU pVCpu)
1372	{
1373	RTCPUID idCpu = RTMpCpuId();
1374	PHMGLOBLCPUINFO pCpu = &g_HvmR0.aCpuInfo[idCpu];
1375
1376	/* Make sure we can't enter a session after we've disabled HM in preparation of a suspend. */
1377	AssertReturn(!ASMAtomicReadBool(&g_HvmR0.fSuspended), VERR_HWACCM_SUSPEND_PENDING);
1378	ASMAtomicWriteBool(&pCpu->fInUse, true);
1379
1380	AssertMsg(pVCpu->hwaccm.s.idEnteredCpu == NIL_RTCPUID, ("%d", (int)pVCpu->hwaccm.s.idEnteredCpu));
1381	pVCpu->hwaccm.s.idEnteredCpu = idCpu;
1382
1383	PCPUMCTX pCtx = CPUMQueryGuestCtxPtr(pVCpu);
1384
1385	/* Always load the guest's FPU/XMM state on-demand. */
1386	CPUMDeactivateGuestFPUState(pVCpu);
1387
1388	/* Always load the guest's debug state on-demand. */
1389	CPUMDeactivateGuestDebugState(pVCpu);
1390
1391	/* Always reload the host context and the guest's CR0 register. (!!!!) */
1392	pVCpu->hwaccm.s.fContextUseFlags \|= HWACCM_CHANGED_GUEST_CR0 \| HWACCM_CHANGED_HOST_CONTEXT;
1393
1394	/* Setup the register and mask according to the current execution mode. */
1395	if (pCtx->msrEFER & MSR_K6_EFER_LMA)
1396	pVM->hwaccm.s.u64RegisterMask = UINT64_C(0xFFFFFFFFFFFFFFFF);
1397	else
1398	pVM->hwaccm.s.u64RegisterMask = UINT64_C(0xFFFFFFFF);
1399
1400	/* Enable VT-x or AMD-V if local init is required, or enable if it's a
1401	freshly onlined CPU. */
1402	int rc;
1403	if ( !pCpu->fConfigured
1404	\|\| !g_HvmR0.fGlobalInit)
1405	{
1406	rc = hmR0EnableCpu(pVM, idCpu);
1407	AssertRCReturn(rc, rc);
1408	}
1409
1410	#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
1411	bool fStartedSet = PGMR0DynMapStartOrMigrateAutoSet(pVCpu);
1412	#endif
1413
1414	rc = g_HvmR0.pfnEnterSession(pVM, pVCpu, pCpu);
1415	AssertRC(rc);
1416	/* We must save the host context here (VT-x) as we might be rescheduled on
1417	a different cpu after a long jump back to ring 3. */
1418	rc \|= g_HvmR0.pfnSaveHostState(pVM, pVCpu);
1419	AssertRC(rc);
1420	rc \|= g_HvmR0.pfnLoadGuestState(pVM, pVCpu, pCtx);
1421	AssertRC(rc);
1422
1423	#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
1424	if (fStartedSet)
1425	PGMRZDynMapReleaseAutoSet(pVCpu);
1426	#endif
1427
1428	/* Keep track of the CPU owning the VMCS for debugging scheduling weirdness
1429	and ring-3 calls. */
1430	if (RT_FAILURE(rc))
1431	pVCpu->hwaccm.s.idEnteredCpu = NIL_RTCPUID;
1432	return rc;
1433	}
1434
1435
1436	/**
1437	* Leaves the VT-x or AMD-V session.
1438	*
1439	* @returns VBox status code.
1440	* @param pVM Pointer to the VM.
1441	* @param pVCpu Pointer to the VMCPU.
1442	*
1443	* @remarks Called with preemption disabled just like HWACCMR0Enter, our
1444	* counterpart.
1445	*/
1446	VMMR0DECL(int) HWACCMR0Leave(PVM pVM, PVMCPU pVCpu)
1447	{
1448	int rc;
1449	RTCPUID idCpu = RTMpCpuId();
1450	PHMGLOBLCPUINFO pCpu = &g_HvmR0.aCpuInfo[idCpu];
1451	PCPUMCTX pCtx = CPUMQueryGuestCtxPtr(pVCpu);
1452
1453	/** @todo r=bird: This can't be entirely right? */
1454	AssertReturn(!ASMAtomicReadBool(&g_HvmR0.fSuspended), VERR_HWACCM_SUSPEND_PENDING);
1455
1456	/*
1457	* Save the guest FPU and XMM state if necessary.
1458	*
1459	* Note! It's rather tricky with longjmps done by e.g. Log statements or
1460	* the page fault handler. We must restore the host FPU here to make
1461	* absolutely sure we don't leave the guest FPU state active or trash
1462	* somebody else's FPU state.
1463	*/
1464	if (CPUMIsGuestFPUStateActive(pVCpu))
1465	{
1466	Log2(("CPUMR0SaveGuestFPU\n"));
1467	CPUMR0SaveGuestFPU(pVM, pVCpu, pCtx);
1468
1469	pVCpu->hwaccm.s.fContextUseFlags \|= HWACCM_CHANGED_GUEST_CR0;
1470	Assert(!CPUMIsGuestFPUStateActive(pVCpu));
1471	}
1472
1473	rc = g_HvmR0.pfnLeaveSession(pVM, pVCpu, pCtx);
1474
1475	/* We don't pass on invlpg information to the recompiler for nested paging
1476	guests, so we must make sure the recompiler flushes its TLB the next
1477	time it executes code. */
1478	if ( pVM->hwaccm.s.fNestedPaging
1479	&& CPUMIsGuestInPagedProtectedModeEx(pCtx))
1480	CPUMSetChangedFlags(pVCpu, CPUM_CHANGED_GLOBAL_TLB_FLUSH);
1481
1482	/* Keep track of the CPU owning the VMCS for debugging scheduling weirdness
1483	and ring-3 calls. */
1484	AssertMsgStmt( pVCpu->hwaccm.s.idEnteredCpu == idCpu
1485	\|\| RT_FAILURE_NP(rc),
1486	("Owner is %u, I'm %u", pVCpu->hwaccm.s.idEnteredCpu, idCpu),
1487	rc = VERR_HM_WRONG_CPU_1);
1488	pVCpu->hwaccm.s.idEnteredCpu = NIL_RTCPUID;
1489
1490	/*
1491	* Disable VT-x or AMD-V if local init was done before.
1492	*/
1493	if (!g_HvmR0.fGlobalInit)
1494	{
1495	rc = hmR0DisableCpu(idCpu);
1496	AssertRC(rc);
1497
1498	/* Reset these to force a TLB flush for the next entry. (-> EXPENSIVE) */
1499	pVCpu->hwaccm.s.idLastCpu = NIL_RTCPUID;
1500	pVCpu->hwaccm.s.uCurrentASID = 0;
1501	VMCPU_FF_SET(pVCpu, VMCPU_FF_TLB_FLUSH);
1502	}
1503
1504	ASMAtomicWriteBool(&pCpu->fInUse, false);
1505	return rc;
1506	}
1507
1508
1509	/**
1510	* Runs guest code in a hardware accelerated VM.
1511	*
1512	* @returns VBox status code.
1513	* @param pVM Pointer to the VM.
1514	* @param pVCpu Pointer to the VMCPU.
1515	*
1516	* @remarks Called with preemption disabled and after first having called
1517	* HWACCMR0Enter.
1518	*/
1519	VMMR0DECL(int) HWACCMR0RunGuestCode(PVM pVM, PVMCPU pVCpu)
1520	{
1521	#ifdef VBOX_STRICT
1522	PHMGLOBLCPUINFO pCpu = &g_HvmR0.aCpuInfo[RTMpCpuId()];
1523	Assert(!VMCPU_FF_ISPENDING(pVCpu, VMCPU_FF_PGM_SYNC_CR3 \| VMCPU_FF_PGM_SYNC_CR3_NON_GLOBAL));
1524	Assert(pCpu->fConfigured);
1525	AssertReturn(!ASMAtomicReadBool(&g_HvmR0.fSuspended), VERR_HWACCM_SUSPEND_PENDING);
1526	Assert(ASMAtomicReadBool(&pCpu->fInUse) == true);
1527	#endif
1528
1529	#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
1530	PGMRZDynMapStartAutoSet(pVCpu);
1531	#endif
1532
1533	int rc = g_HvmR0.pfnRunGuestCode(pVM, pVCpu, CPUMQueryGuestCtxPtr(pVCpu));
1534
1535	#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
1536	PGMRZDynMapReleaseAutoSet(pVCpu);
1537	#endif
1538	return rc;
1539	}
1540
1541	#if HC_ARCH_BITS == 32 && defined(VBOX_ENABLE_64_BITS_GUESTS) && !defined(VBOX_WITH_HYBRID_32BIT_KERNEL)
1542
1543	/**
1544	* Save guest FPU/XMM state (64 bits guest mode & 32 bits host only)
1545	*
1546	* @returns VBox status code.
1547	* @param pVM Pointer to the VM.
1548	* @param pVCpu Pointer to the VMCPU.
1549	* @param pCtx Pointer to the guest CPU context.
1550	*/
1551	VMMR0DECL(int) HWACCMR0SaveFPUState(PVM pVM, PVMCPU pVCpu, PCPUMCTX pCtx)
1552	{
1553	STAM_COUNTER_INC(&pVCpu->hwaccm.s.StatFpu64SwitchBack);
1554	if (pVM->hwaccm.s.vmx.fSupported)
1555	return VMXR0Execute64BitsHandler(pVM, pVCpu, pCtx, pVM->hwaccm.s.pfnSaveGuestFPU64, 0, NULL);
1556	return SVMR0Execute64BitsHandler(pVM, pVCpu, pCtx, pVM->hwaccm.s.pfnSaveGuestFPU64, 0, NULL);
1557	}
1558
1559
1560	/**
1561	* Save guest debug state (64 bits guest mode & 32 bits host only)
1562	*
1563	* @returns VBox status code.
1564	* @param pVM Pointer to the VM.
1565	* @param pVCpu Pointer to the VMCPU.
1566	* @param pCtx Pointer to the guest CPU context.
1567	*/
1568	VMMR0DECL(int) HWACCMR0SaveDebugState(PVM pVM, PVMCPU pVCpu, PCPUMCTX pCtx)
1569	{
1570	STAM_COUNTER_INC(&pVCpu->hwaccm.s.StatDebug64SwitchBack);
1571	if (pVM->hwaccm.s.vmx.fSupported)
1572	return VMXR0Execute64BitsHandler(pVM, pVCpu, pCtx, pVM->hwaccm.s.pfnSaveGuestDebug64, 0, NULL);
1573	return SVMR0Execute64BitsHandler(pVM, pVCpu, pCtx, pVM->hwaccm.s.pfnSaveGuestDebug64, 0, NULL);
1574	}
1575
1576
1577	/**
1578	* Test the 32->64 bits switcher.
1579	*
1580	* @returns VBox status code.
1581	* @param pVM Pointer to the VM.
1582	*/
1583	VMMR0DECL(int) HWACCMR0TestSwitcher3264(PVM pVM)
1584	{
1585	PVMCPU pVCpu = &pVM->aCpus[0];
1586	PCPUMCTX pCtx = CPUMQueryGuestCtxPtr(pVCpu);
1587	uint32_t aParam[5] = {0, 1, 2, 3, 4};
1588	int rc;
1589
1590	STAM_PROFILE_ADV_START(&pVCpu->hwaccm.s.StatWorldSwitch3264, z);
1591	if (pVM->hwaccm.s.vmx.fSupported)
1592	rc = VMXR0Execute64BitsHandler(pVM, pVCpu, pCtx, pVM->hwaccm.s.pfnTest64, 5, &aParam[0]);
1593	else
1594	rc = SVMR0Execute64BitsHandler(pVM, pVCpu, pCtx, pVM->hwaccm.s.pfnTest64, 5, &aParam[0]);
1595	STAM_PROFILE_ADV_STOP(&pVCpu->hwaccm.s.StatWorldSwitch3264, z);
1596
1597	return rc;
1598	}
1599
1600	#endif /* HC_ARCH_BITS == 32 && defined(VBOX_WITH_64_BITS_GUESTS) && !defined(VBOX_WITH_HYBRID_32BIT_KERNEL) */
1601
1602	/**
1603	* Returns suspend status of the host.
1604	*
1605	* @returns Suspend pending or not.
1606	*/
1607	VMMR0DECL(bool) HWACCMR0SuspendPending(void)
1608	{
1609	return ASMAtomicReadBool(&g_HvmR0.fSuspended);
1610	}
1611
1612
1613	/**
1614	* Returns the cpu structure for the current cpu.
1615	* Keep in mind that there is no guarantee it will stay the same (long jumps to ring 3!!!).
1616	*
1617	* @returns The cpu structure pointer.
1618	*/
1619	VMMR0DECL(PHMGLOBLCPUINFO) HWACCMR0GetCurrentCpu(void)
1620	{
1621	RTCPUID idCpu = RTMpCpuId();
1622	Assert(idCpu < RT_ELEMENTS(g_HvmR0.aCpuInfo));
1623	return &g_HvmR0.aCpuInfo[idCpu];
1624	}
1625
1626
1627	/**
1628	* Returns the cpu structure for the current cpu.
1629	* Keep in mind that there is no guarantee it will stay the same (long jumps to ring 3!!!).
1630	*
1631	* @returns The cpu structure pointer.
1632	* @param idCpu id of the VCPU.
1633	*/
1634	VMMR0DECL(PHMGLOBLCPUINFO) HWACCMR0GetCurrentCpuEx(RTCPUID idCpu)
1635	{
1636	Assert(idCpu < RT_ELEMENTS(g_HvmR0.aCpuInfo));
1637	return &g_HvmR0.aCpuInfo[idCpu];
1638	}
1639
1640
1641	/**
1642	* Save a pending IO read.
1643	*
1644	* @param pVCpu Pointer to the VMCPU.
1645	* @param GCPtrRip Address of IO instruction.
1646	* @param GCPtrRipNext Address of the next instruction.
1647	* @param uPort Port address.
1648	* @param uAndVal AND mask for saving the result in eax.
1649	* @param cbSize Read size.
1650	*/
1651	VMMR0DECL(void) HWACCMR0SavePendingIOPortRead(PVMCPU pVCpu, RTGCPTR GCPtrRip, RTGCPTR GCPtrRipNext, unsigned uPort, unsigned uAndVal, unsigned cbSize)
1652	{
1653	pVCpu->hwaccm.s.PendingIO.enmType = HWACCMPENDINGIO_PORT_READ;
1654	pVCpu->hwaccm.s.PendingIO.GCPtrRip = GCPtrRip;
1655	pVCpu->hwaccm.s.PendingIO.GCPtrRipNext = GCPtrRipNext;
1656	pVCpu->hwaccm.s.PendingIO.s.Port.uPort = uPort;
1657	pVCpu->hwaccm.s.PendingIO.s.Port.uAndVal = uAndVal;
1658	pVCpu->hwaccm.s.PendingIO.s.Port.cbSize = cbSize;
1659	return;
1660	}
1661
1662
1663	/**
1664	* Save a pending IO write.
1665	*
1666	* @param pVCpu Pointer to the VMCPU.
1667	* @param GCPtrRIP Address of IO instruction.
1668	* @param uPort Port address.
1669	* @param uAndVal AND mask for fetching the result from eax.
1670	* @param cbSize Read size.
1671	*/
1672	VMMR0DECL(void) HWACCMR0SavePendingIOPortWrite(PVMCPU pVCpu, RTGCPTR GCPtrRip, RTGCPTR GCPtrRipNext, unsigned uPort, unsigned uAndVal, unsigned cbSize)
1673	{
1674	pVCpu->hwaccm.s.PendingIO.enmType = HWACCMPENDINGIO_PORT_WRITE;
1675	pVCpu->hwaccm.s.PendingIO.GCPtrRip = GCPtrRip;
1676	pVCpu->hwaccm.s.PendingIO.GCPtrRipNext = GCPtrRipNext;
1677	pVCpu->hwaccm.s.PendingIO.s.Port.uPort = uPort;
1678	pVCpu->hwaccm.s.PendingIO.s.Port.uAndVal = uAndVal;
1679	pVCpu->hwaccm.s.PendingIO.s.Port.cbSize = cbSize;
1680	return;
1681	}
1682
1683
1684	/**
1685	* Raw-mode switcher hook - disable VT-x if it's active and the current
1686	* switcher turns off paging.
1687	*
1688	* @returns VBox status code.
1689	* @param pVM Pointer to the VM.
1690	* @param pfVTxDisabled Where to store whether VT-x was disabled or not.
1691	*/
1692	VMMR0DECL(int) HWACCMR0EnterSwitcher(PVM pVM, bool *pfVTxDisabled)
1693	{
1694	Assert(!(ASMGetFlags() & X86_EFL_IF) \|\| !RTThreadPreemptIsEnabled(NIL_RTTHREAD));
1695
1696	*pfVTxDisabled = false;
1697
1698	if ( !g_HvmR0.fEnabled
1699	\|\| !g_HvmR0.vmx.fSupported /* no such issues with AMD-V */
1700	\|\| !g_HvmR0.fGlobalInit /* Local init implies the CPU is currently not in VMX root mode. */)
1701	return VINF_SUCCESS; /* nothing to do */
1702
1703	switch (VMMGetSwitcher(pVM))
1704	{
1705	case VMMSWITCHER_32_TO_32:
1706	case VMMSWITCHER_PAE_TO_PAE:
1707	return VINF_SUCCESS; /* safe switchers as they don't turn off paging */
1708
1709	case VMMSWITCHER_32_TO_PAE:
1710	case VMMSWITCHER_PAE_TO_32: /* is this one actually used?? */
1711	case VMMSWITCHER_AMD64_TO_32:
1712	case VMMSWITCHER_AMD64_TO_PAE:
1713	break; /* unsafe switchers */
1714
1715	default:
1716	AssertFailedReturn(VERR_HM_WRONG_SWITCHER);
1717	}
1718
1719	PHMGLOBLCPUINFO pCpu = HWACCMR0GetCurrentCpu();
1720	AssertReturn(pCpu && pCpu->hMemObj != NIL_RTR0MEMOBJ, VERR_HM_IPE_2);
1721
1722	*pfVTxDisabled = true;
1723	void *pvCpuPage = RTR0MemObjAddress(pCpu->hMemObj);
1724	RTHCPHYS HCPhysCpuPage = RTR0MemObjGetPagePhysAddr(pCpu->hMemObj, 0);
1725	return VMXR0DisableCpu(pCpu, pvCpuPage, HCPhysCpuPage);
1726	}
1727
1728
1729	/**
1730	* Raw-mode switcher hook - re-enable VT-x if was active and the current
1731	* switcher turned off paging.
1732	*
1733	* @returns VBox status code.
1734	* @param pVM Pointer to the VM.
1735	* @param fVTxDisabled Whether VT-x was disabled or not.
1736	*/
1737	VMMR0DECL(int) HWACCMR0LeaveSwitcher(PVM pVM, bool fVTxDisabled)
1738	{
1739	Assert(!(ASMGetFlags() & X86_EFL_IF));
1740
1741	if (!fVTxDisabled)
1742	return VINF_SUCCESS; /* nothing to do */
1743
1744	Assert(g_HvmR0.fEnabled);
1745	Assert(g_HvmR0.vmx.fSupported);
1746	Assert(g_HvmR0.fGlobalInit);
1747
1748	PHMGLOBLCPUINFO pCpu = HWACCMR0GetCurrentCpu();
1749	AssertReturn(pCpu && pCpu->hMemObj != NIL_RTR0MEMOBJ, VERR_HM_IPE_2);
1750
1751	void *pvCpuPage = RTR0MemObjAddress(pCpu->hMemObj);
1752	RTHCPHYS HCPhysCpuPage = RTR0MemObjGetPagePhysAddr(pCpu->hMemObj, 0);
1753	return VMXR0EnableCpu(pCpu, pVM, pvCpuPage, HCPhysCpuPage);
1754	}
1755
1756	#ifdef VBOX_STRICT
1757
1758	/**
1759	* Dumps a descriptor.
1760	*
1761	* @param pDesc Descriptor to dump.
1762	* @param Sel Selector number.
1763	* @param pszMsg Message to prepend the log entry with.
1764	*/
1765	VMMR0DECL(void) HWACCMR0DumpDescriptor(PCX86DESCHC pDesc, RTSEL Sel, const char *pszMsg)
1766	{
1767	/*
1768	* Make variable description string.
1769	*/
1770	static struct
1771	{
1772	unsigned cch;
1773	const char *psz;
1774	} const s_aTypes[32] =
1775	{
1776	# define STRENTRY(str) { sizeof(str) - 1, str }
1777
1778	/* system */
1779	# if HC_ARCH_BITS == 64
1780	STRENTRY("Reserved0 "), /* 0x00 */
1781	STRENTRY("Reserved1 "), /* 0x01 */
1782	STRENTRY("LDT "), /* 0x02 */
1783	STRENTRY("Reserved3 "), /* 0x03 */
1784	STRENTRY("Reserved4 "), /* 0x04 */
1785	STRENTRY("Reserved5 "), /* 0x05 */
1786	STRENTRY("Reserved6 "), /* 0x06 */
1787	STRENTRY("Reserved7 "), /* 0x07 */
1788	STRENTRY("Reserved8 "), /* 0x08 */
1789	STRENTRY("TSS64Avail "), /* 0x09 */
1790	STRENTRY("ReservedA "), /* 0x0a */
1791	STRENTRY("TSS64Busy "), /* 0x0b */
1792	STRENTRY("Call64 "), /* 0x0c */
1793	STRENTRY("ReservedD "), /* 0x0d */
1794	STRENTRY("Int64 "), /* 0x0e */
1795	STRENTRY("Trap64 "), /* 0x0f */
1796	# else
1797	STRENTRY("Reserved0 "), /* 0x00 */
1798	STRENTRY("TSS16Avail "), /* 0x01 */
1799	STRENTRY("LDT "), /* 0x02 */
1800	STRENTRY("TSS16Busy "), /* 0x03 */
1801	STRENTRY("Call16 "), /* 0x04 */
1802	STRENTRY("Task "), /* 0x05 */
1803	STRENTRY("Int16 "), /* 0x06 */
1804	STRENTRY("Trap16 "), /* 0x07 */
1805	STRENTRY("Reserved8 "), /* 0x08 */
1806	STRENTRY("TSS32Avail "), /* 0x09 */
1807	STRENTRY("ReservedA "), /* 0x0a */
1808	STRENTRY("TSS32Busy "), /* 0x0b */
1809	STRENTRY("Call32 "), /* 0x0c */
1810	STRENTRY("ReservedD "), /* 0x0d */
1811	STRENTRY("Int32 "), /* 0x0e */
1812	STRENTRY("Trap32 "), /* 0x0f */
1813	# endif
1814	/* non system */
1815	STRENTRY("DataRO "), /* 0x10 */
1816	STRENTRY("DataRO Accessed "), /* 0x11 */
1817	STRENTRY("DataRW "), /* 0x12 */
1818	STRENTRY("DataRW Accessed "), /* 0x13 */
1819	STRENTRY("DataDownRO "), /* 0x14 */
1820	STRENTRY("DataDownRO Accessed "), /* 0x15 */
1821	STRENTRY("DataDownRW "), /* 0x16 */
1822	STRENTRY("DataDownRW Accessed "), /* 0x17 */
1823	STRENTRY("CodeEO "), /* 0x18 */
1824	STRENTRY("CodeEO Accessed "), /* 0x19 */
1825	STRENTRY("CodeER "), /* 0x1a */
1826	STRENTRY("CodeER Accessed "), /* 0x1b */
1827	STRENTRY("CodeConfEO "), /* 0x1c */
1828	STRENTRY("CodeConfEO Accessed "), /* 0x1d */
1829	STRENTRY("CodeConfER "), /* 0x1e */
1830	STRENTRY("CodeConfER Accessed ") /* 0x1f */
1831	# undef SYSENTRY
1832	};
1833	# define ADD_STR(psz, pszAdd) do { strcpy(psz, pszAdd); psz += strlen(pszAdd); } while (0)
1834	char szMsg[128];
1835	char *psz = &szMsg[0];
1836	unsigned i = pDesc->Gen.u1DescType << 4 \| pDesc->Gen.u4Type;
1837	memcpy(psz, s_aTypes[i].psz, s_aTypes[i].cch);
1838	psz += s_aTypes[i].cch;
1839
1840	if (pDesc->Gen.u1Present)
1841	ADD_STR(psz, "Present ");
1842	else
1843	ADD_STR(psz, "Not-Present ");
1844	# if HC_ARCH_BITS == 64
1845	if (pDesc->Gen.u1Long)
1846	ADD_STR(psz, "64-bit ");
1847	else
1848	ADD_STR(psz, "Comp ");
1849	# else
1850	if (pDesc->Gen.u1Granularity)
1851	ADD_STR(psz, "Page ");
1852	if (pDesc->Gen.u1DefBig)
1853	ADD_STR(psz, "32-bit ");
1854	else
1855	ADD_STR(psz, "16-bit ");
1856	# endif
1857	# undef ADD_STR
1858	*psz = '\0';
1859
1860	/*
1861	* Limit and Base and format the output.
1862	*/
1863	uint32_t u32Limit = X86DESC_LIMIT_G(pDesc);
1864
1865	# if HC_ARCH_BITS == 64
1866	uint64_t u32Base = X86DESC64_BASE(pDesc);
1867
1868	Log(("%s %04x - %RX64 %RX64 - base=%RX64 limit=%08x dpl=%d %s\n", pszMsg,
1869	Sel, pDesc->au64[0], pDesc->au64[1], u32Base, u32Limit, pDesc->Gen.u2Dpl, szMsg));
1870	# else
1871	uint32_t u32Base = X86DESC_BASE(pDesc);
1872
1873	Log(("%s %04x - %08x %08x - base=%08x limit=%08x dpl=%d %s\n", pszMsg,
1874	Sel, pDesc->au32[0], pDesc->au32[1], u32Base, u32Limit, pDesc->Gen.u2Dpl, szMsg));
1875	# endif
1876	}
1877
1878
1879	/**
1880	* Formats a full register dump.
1881	*
1882	* @param pVM Pointer to the VM.
1883	* @param pVCpu Pointer to the VMCPU.
1884	* @param pCtx Pointer to the CPU context.
1885	*/
1886	VMMR0DECL(void) HWACCMDumpRegs(PVM pVM, PVMCPU pVCpu, PCPUMCTX pCtx)
1887	{
1888	NOREF(pVM);
1889
1890	/*
1891	* Format the flags.
1892	*/
1893	static struct
1894	{
1895	const char pszSet; const char pszClear; uint32_t fFlag;
1896	} const s_aFlags[] =
1897	{
1898	{ "vip",NULL, X86_EFL_VIP },
1899	{ "vif",NULL, X86_EFL_VIF },
1900	{ "ac", NULL, X86_EFL_AC },
1901	{ "vm", NULL, X86_EFL_VM },
1902	{ "rf", NULL, X86_EFL_RF },
1903	{ "nt", NULL, X86_EFL_NT },
1904	{ "ov", "nv", X86_EFL_OF },
1905	{ "dn", "up", X86_EFL_DF },
1906	{ "ei", "di", X86_EFL_IF },
1907	{ "tf", NULL, X86_EFL_TF },
1908	{ "nt", "pl", X86_EFL_SF },
1909	{ "nz", "zr", X86_EFL_ZF },
1910	{ "ac", "na", X86_EFL_AF },
1911	{ "po", "pe", X86_EFL_PF },
1912	{ "cy", "nc", X86_EFL_CF },
1913	};
1914	char szEFlags[80];
1915	char *psz = szEFlags;
1916	uint32_t efl = pCtx->eflags.u32;
1917	for (unsigned i = 0; i < RT_ELEMENTS(s_aFlags); i++)
1918	{
1919	const char *pszAdd = s_aFlags[i].fFlag & efl ? s_aFlags[i].pszSet : s_aFlags[i].pszClear;
1920	if (pszAdd)
1921	{
1922	strcpy(psz, pszAdd);
1923	psz += strlen(pszAdd);
1924	*psz++ = ' ';
1925	}
1926	}
1927	psz[-1] = '\0';
1928
1929
1930	/*
1931	* Format the registers.
1932	*/
1933	if (CPUMIsGuestIn64BitCode(pVCpu))
1934	{
1935	Log(("rax=%016RX64 rbx=%016RX64 rcx=%016RX64 rdx=%016RX64\n"
1936	"rsi=%016RX64 rdi=%016RX64 r8 =%016RX64 r9 =%016RX64\n"
1937	"r10=%016RX64 r11=%016RX64 r12=%016RX64 r13=%016RX64\n"
1938	"r14=%016RX64 r15=%016RX64\n"
1939	"rip=%016RX64 rsp=%016RX64 rbp=%016RX64 iopl=%d %*s\n"
1940	"cs={%04x base=%016RX64 limit=%08x flags=%08x}\n"
1941	"ds={%04x base=%016RX64 limit=%08x flags=%08x}\n"
1942	"es={%04x base=%016RX64 limit=%08x flags=%08x}\n"
1943	"fs={%04x base=%016RX64 limit=%08x flags=%08x}\n"
1944	"gs={%04x base=%016RX64 limit=%08x flags=%08x}\n"
1945	"ss={%04x base=%016RX64 limit=%08x flags=%08x}\n"
1946	"cr0=%016RX64 cr2=%016RX64 cr3=%016RX64 cr4=%016RX64\n"
1947	"dr0=%016RX64 dr1=%016RX64 dr2=%016RX64 dr3=%016RX64\n"
1948	"dr4=%016RX64 dr5=%016RX64 dr6=%016RX64 dr7=%016RX64\n"
1949	"gdtr=%016RX64:%04x idtr=%016RX64:%04x eflags=%08x\n"
1950	"ldtr={%04x base=%08RX64 limit=%08x flags=%08x}\n"
1951	"tr ={%04x base=%08RX64 limit=%08x flags=%08x}\n"
1952	"SysEnter={cs=%04llx eip=%08llx esp=%08llx}\n"
1953	,
1954	pCtx->rax, pCtx->rbx, pCtx->rcx, pCtx->rdx, pCtx->rsi, pCtx->rdi,
1955	pCtx->r8, pCtx->r9, pCtx->r10, pCtx->r11, pCtx->r12, pCtx->r13,
1956	pCtx->r14, pCtx->r15,
1957	pCtx->rip, pCtx->rsp, pCtx->rbp, X86_EFL_GET_IOPL(efl), 31, szEFlags,
1958	pCtx->cs.Sel, pCtx->cs.u64Base, pCtx->cs.u32Limit, pCtx->cs.Attr.u,
1959	pCtx->ds.Sel, pCtx->ds.u64Base, pCtx->ds.u32Limit, pCtx->ds.Attr.u,
1960	pCtx->es.Sel, pCtx->es.u64Base, pCtx->es.u32Limit, pCtx->es.Attr.u,
1961	pCtx->fs.Sel, pCtx->fs.u64Base, pCtx->fs.u32Limit, pCtx->fs.Attr.u,
1962	pCtx->gs.Sel, pCtx->gs.u64Base, pCtx->gs.u32Limit, pCtx->gs.Attr.u,
1963	pCtx->ss.Sel, pCtx->ss.u64Base, pCtx->ss.u32Limit, pCtx->ss.Attr.u,
1964	pCtx->cr0, pCtx->cr2, pCtx->cr3, pCtx->cr4,
1965	pCtx->dr[0], pCtx->dr[1], pCtx->dr[2], pCtx->dr[3],
1966	pCtx->dr[4], pCtx->dr[5], pCtx->dr[6], pCtx->dr[7],
1967	pCtx->gdtr.pGdt, pCtx->gdtr.cbGdt, pCtx->idtr.pIdt, pCtx->idtr.cbIdt, efl,
1968	pCtx->ldtr.Sel, pCtx->ldtr.u64Base, pCtx->ldtr.u32Limit, pCtx->ldtr.Attr.u,
1969	pCtx->tr.Sel, pCtx->tr.u64Base, pCtx->tr.u32Limit, pCtx->tr.Attr.u,
1970	pCtx->SysEnter.cs, pCtx->SysEnter.eip, pCtx->SysEnter.esp));
1971	}
1972	else
1973	Log(("eax=%08x ebx=%08x ecx=%08x edx=%08x esi=%08x edi=%08x\n"
1974	"eip=%08x esp=%08x ebp=%08x iopl=%d %*s\n"
1975	"cs={%04x base=%016RX64 limit=%08x flags=%08x} dr0=%08RX64 dr1=%08RX64\n"
1976	"ds={%04x base=%016RX64 limit=%08x flags=%08x} dr2=%08RX64 dr3=%08RX64\n"
1977	"es={%04x base=%016RX64 limit=%08x flags=%08x} dr4=%08RX64 dr5=%08RX64\n"
1978	"fs={%04x base=%016RX64 limit=%08x flags=%08x} dr6=%08RX64 dr7=%08RX64\n"
1979	"gs={%04x base=%016RX64 limit=%08x flags=%08x} cr0=%08RX64 cr2=%08RX64\n"
1980	"ss={%04x base=%016RX64 limit=%08x flags=%08x} cr3=%08RX64 cr4=%08RX64\n"
1981	"gdtr=%016RX64:%04x idtr=%016RX64:%04x eflags=%08x\n"
1982	"ldtr={%04x base=%08RX64 limit=%08x flags=%08x}\n"
1983	"tr ={%04x base=%08RX64 limit=%08x flags=%08x}\n"
1984	"SysEnter={cs=%04llx eip=%08llx esp=%08llx}\n"
1985	,
1986	pCtx->eax, pCtx->ebx, pCtx->ecx, pCtx->edx, pCtx->esi, pCtx->edi,
1987	pCtx->eip, pCtx->esp, pCtx->ebp, X86_EFL_GET_IOPL(efl), 31, szEFlags,
1988	pCtx->cs.Sel, pCtx->cs.u64Base, pCtx->cs.u32Limit, pCtx->cs.Attr.u, pCtx->dr[0], pCtx->dr[1],
1989	pCtx->ds.Sel, pCtx->ds.u64Base, pCtx->ds.u32Limit, pCtx->ds.Attr.u, pCtx->dr[2], pCtx->dr[3],
1990	pCtx->es.Sel, pCtx->es.u64Base, pCtx->es.u32Limit, pCtx->es.Attr.u, pCtx->dr[4], pCtx->dr[5],
1991	pCtx->fs.Sel, pCtx->fs.u64Base, pCtx->fs.u32Limit, pCtx->fs.Attr.u, pCtx->dr[6], pCtx->dr[7],
1992	pCtx->gs.Sel, pCtx->gs.u64Base, pCtx->gs.u32Limit, pCtx->gs.Attr.u, pCtx->cr0, pCtx->cr2,
1993	pCtx->ss.Sel, pCtx->ss.u64Base, pCtx->ss.u32Limit, pCtx->ss.Attr.u, pCtx->cr3, pCtx->cr4,
1994	pCtx->gdtr.pGdt, pCtx->gdtr.cbGdt, pCtx->idtr.pIdt, pCtx->idtr.cbIdt, efl,
1995	pCtx->ldtr.Sel, pCtx->ldtr.u64Base, pCtx->ldtr.u32Limit, pCtx->ldtr.Attr.u,
1996	pCtx->tr.Sel, pCtx->tr.u64Base, pCtx->tr.u32Limit, pCtx->tr.Attr.u,
1997	pCtx->SysEnter.cs, pCtx->SysEnter.eip, pCtx->SysEnter.esp));
1998
1999	Log(("FPU:\n"
2000	"FCW=%04x FSW=%04x FTW=%02x\n"
2001	"FOP=%04x FPUIP=%08x CS=%04x Rsrvd1=%04x\n"
2002	"FPUDP=%04x DS=%04x Rsvrd2=%04x MXCSR=%08x MXCSR_MASK=%08x\n"
2003	,
2004	pCtx->fpu.FCW, pCtx->fpu.FSW, pCtx->fpu.FTW,
2005	pCtx->fpu.FOP, pCtx->fpu.FPUIP, pCtx->fpu.CS, pCtx->fpu.Rsrvd1,
2006	pCtx->fpu.FPUDP, pCtx->fpu.DS, pCtx->fpu.Rsrvd2,
2007	pCtx->fpu.MXCSR, pCtx->fpu.MXCSR_MASK));
2008
2009
2010	Log(("MSR:\n"
2011	"EFER =%016RX64\n"
2012	"PAT =%016RX64\n"
2013	"STAR =%016RX64\n"
2014	"CSTAR =%016RX64\n"
2015	"LSTAR =%016RX64\n"
2016	"SFMASK =%016RX64\n"
2017	"KERNELGSBASE =%016RX64\n",
2018	pCtx->msrEFER,
2019	pCtx->msrPAT,
2020	pCtx->msrSTAR,
2021	pCtx->msrCSTAR,
2022	pCtx->msrLSTAR,
2023	pCtx->msrSFMASK,
2024	pCtx->msrKERNELGSBASE));
2025
2026	}
2027
2028	#endif /* VBOX_STRICT */
2029

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source: vbox/trunk/src/VBox/VMM/VMMR0/HWACCMR0.cpp@ 42696

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