HMR0.cpp@ 51433

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1	/* $Id: HMR0.cpp 51433 2014-05-28 07:45:20Z vboxsync $ */
2	/** @file
3	* Hardware Assisted Virtualization Manager (HM) - Host Context Ring-0.
4	*/
5
6	/*
7	* Copyright (C) 2006-2013 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_HM
23	#include <VBox/vmm/hm.h>
24	#include <VBox/vmm/pgm.h>
25	#include "HMInternal.h"
26	#include <VBox/vmm/vm.h>
27	#include <VBox/vmm/hm_vmx.h>
28	#include <VBox/vmm/hm_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 "HMVMXR0.h"
44	#include "HMSVMR0.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	HMGLOBALCPUINFO 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, PHMGLOBALCPUINFO pCpu));
89	DECLR0CALLBACKMEMBER(void, pfnThreadCtxCallback, (RTTHREADCTXEVENT enmEvent, PVMCPU pVCpu, bool fGlobalInit));
90	DECLR0CALLBACKMEMBER(int, pfnSaveHostState, (PVM pVM, PVMCPU pVCpu));
91	DECLR0CALLBACKMEMBER(int, pfnRunGuestCode, (PVM pVM, PVMCPU pVCpu, PCPUMCTX pCtx));
92	DECLR0CALLBACKMEMBER(int, pfnEnableCpu, (PHMGLOBALCPUINFO pCpu, PVM pVM, void *pvCpuPage, RTHCPHYS HCPhysCpuPage,
93	bool fEnabledByHost, void *pvArg));
94	DECLR0CALLBACKMEMBER(int, pfnDisableCpu, (PHMGLOBALCPUINFO 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	/** @todo This isn't used for anything relevant. Remove later? */
117	uint64_t u64HostCr4;
118
119	/** Host EFER value (set by ring-0 VMX init) */
120	uint64_t u64HostEfer;
121
122	/** VMX MSR values */
123	VMXMSRS Msrs;
124
125	/* Last instruction error */
126	uint32_t ulLastInstrError;
127	} vmx;
128
129	/** AMD-V information. */
130	struct
131	{
132	/* HWCR MSR (for diagnostics) */
133	uint64_t u64MsrHwcr;
134
135	/** SVM revision. */
136	uint32_t u32Rev;
137
138	/** SVM feature bits from cpuid 0x8000000a */
139	uint32_t u32Features;
140
141	/** Set by us to indicate SVM is supported by the CPU. */
142	bool fSupported;
143	} svm;
144	/** Saved error from detection */
145	int32_t lLastError;
146
147	struct
148	{
149	uint32_t u32AMDFeatureECX;
150	uint32_t u32AMDFeatureEDX;
151	} cpuid;
152
153	/** If set, VT-x/AMD-V is enabled globally at init time, otherwise it's
154	* enabled and disabled each time it's used to execute guest code. */
155	bool fGlobalInit;
156	/** Indicates whether the host is suspending or not. We'll refuse a few
157	* actions when the host is being suspended to speed up the suspending and
158	* avoid trouble. */
159	volatile bool fSuspended;
160
161	/** Whether we've already initialized all CPUs.
162	* @remarks We could check the EnableAllCpusOnce state, but this is
163	* simpler and hopefully easier to understand. */
164	bool fEnabled;
165	/** Serialize initialization in HMR0EnableAllCpus. */
166	RTONCE EnableAllCpusOnce;
167	} g_HvmR0;
168
169
170
171	/**
172	* Initializes a first return code structure.
173	*
174	* @param pFirstRc The structure to init.
175	*/
176	static void hmR0FirstRcInit(PHMR0FIRSTRC pFirstRc)
177	{
178	pFirstRc->rc = VINF_SUCCESS;
179	pFirstRc->idCpu = NIL_RTCPUID;
180	}
181
182
183	/**
184	* Try set the status code (success ignored).
185	*
186	* @param pFirstRc The first return code structure.
187	* @param rc The status code.
188	*/
189	static void hmR0FirstRcSetStatus(PHMR0FIRSTRC pFirstRc, int rc)
190	{
191	if ( RT_FAILURE(rc)
192	&& ASMAtomicCmpXchgS32(&pFirstRc->rc, rc, VINF_SUCCESS))
193	pFirstRc->idCpu = RTMpCpuId();
194	}
195
196
197	/**
198	* Get the status code of a first return code structure.
199	*
200	* @returns The status code; VINF_SUCCESS or error status, no informational or
201	* warning errors.
202	* @param pFirstRc The first return code structure.
203	*/
204	static int hmR0FirstRcGetStatus(PHMR0FIRSTRC pFirstRc)
205	{
206	return pFirstRc->rc;
207	}
208
209
210	#ifdef VBOX_STRICT
211	/**
212	* Get the CPU ID on which the failure status code was reported.
213	*
214	* @returns The CPU ID, NIL_RTCPUID if no failure was reported.
215	* @param pFirstRc The first return code structure.
216	*/
217	static RTCPUID hmR0FirstRcGetCpuId(PHMR0FIRSTRC pFirstRc)
218	{
219	return pFirstRc->idCpu;
220	}
221	#endif /* VBOX_STRICT */
222
223
224	/** @name Dummy callback handlers.
225	* @{ */
226
227	static DECLCALLBACK(int) hmR0DummyEnter(PVM pVM, PVMCPU pVCpu, PHMGLOBALCPUINFO pCpu)
228	{
229	NOREF(pVM); NOREF(pVCpu); NOREF(pCpu);
230	return VINF_SUCCESS;
231	}
232
233	static DECLCALLBACK(void) hmR0DummyThreadCtxCallback(RTTHREADCTXEVENT enmEvent, PVMCPU pVCpu, bool fGlobalInit)
234	{
235	NOREF(enmEvent); NOREF(pVCpu); NOREF(fGlobalInit);
236	}
237
238	static DECLCALLBACK(int) hmR0DummyEnableCpu(PHMGLOBALCPUINFO pCpu, PVM pVM, void *pvCpuPage, RTHCPHYS HCPhysCpuPage,
239	bool fEnabledBySystem, void *pvArg)
240	{
241	NOREF(pCpu); NOREF(pVM); NOREF(pvCpuPage); NOREF(HCPhysCpuPage); NOREF(fEnabledBySystem); NOREF(pvArg);
242	return VINF_SUCCESS;
243	}
244
245	static DECLCALLBACK(int) hmR0DummyDisableCpu(PHMGLOBALCPUINFO pCpu, void *pvCpuPage, RTHCPHYS HCPhysCpuPage)
246	{
247	NOREF(pCpu); NOREF(pvCpuPage); NOREF(HCPhysCpuPage);
248	return VINF_SUCCESS;
249	}
250
251	static DECLCALLBACK(int) hmR0DummyInitVM(PVM pVM)
252	{
253	NOREF(pVM);
254	return VINF_SUCCESS;
255	}
256
257	static DECLCALLBACK(int) hmR0DummyTermVM(PVM pVM)
258	{
259	NOREF(pVM);
260	return VINF_SUCCESS;
261	}
262
263	static DECLCALLBACK(int) hmR0DummySetupVM(PVM pVM)
264	{
265	NOREF(pVM);
266	return VINF_SUCCESS;
267	}
268
269	static DECLCALLBACK(int) hmR0DummyRunGuestCode(PVM pVM, PVMCPU pVCpu, PCPUMCTX pCtx)
270	{
271	NOREF(pVM); NOREF(pVCpu); NOREF(pCtx);
272	return VINF_SUCCESS;
273	}
274
275	static DECLCALLBACK(int) hmR0DummySaveHostState(PVM pVM, PVMCPU pVCpu)
276	{
277	NOREF(pVM); NOREF(pVCpu);
278	return VINF_SUCCESS;
279	}
280
281	/** @} */
282
283
284	/**
285	* Checks if the CPU is subject to the "VMX-Preemption Timer Does Not Count
286	* Down at the Rate Specified" erratum.
287	*
288	* Errata names and related steppings:
289	* - BA86 - D0.
290	* - AAX65 - C2.
291	* - AAU65 - C2, K0.
292	* - AAO95 - B1.
293	* - AAT59 - C2.
294	* - AAK139 - D0.
295	* - AAM126 - C0, C1, D0.
296	* - AAN92 - B1.
297	* - AAJ124 - C0, D0.
298	*
299	* - AAP86 - B1.
300	*
301	* Steppings: B1, C0, C1, C2, D0, K0.
302	*
303	* @returns true if subject to it, false if not.
304	*/
305	static bool hmR0InitIntelIsSubjectToVmxPreemptionTimerErratum(void)
306	{
307	uint32_t u = ASMCpuId_EAX(1);
308	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));
309	if ( u == UINT32_C(0x000206E6) /* 323344.pdf - BA86 - D0 - Intel Xeon Processor 7500 Series */
310	\|\| u == UINT32_C(0x00020652) /* 323056.pdf - AAX65 - C2 - Intel Xeon Processor L3406 */
311	\|\| u == UINT32_C(0x00020652) /* 322814.pdf - AAT59 - C2 - Intel CoreTM i7-600, i5-500, i5-400 and i3-300 Mobile Processor Series */
312	\|\| u == UINT32_C(0x00020652) /* 322911.pdf - AAU65 - C2 - Intel CoreTM i5-600, i3-500 Desktop Processor Series and Intel Pentium Processor G6950 */
313	\|\| u == UINT32_C(0x00020655) /* 322911.pdf - AAU65 - K0 - Intel CoreTM i5-600, i3-500 Desktop Processor Series and Intel Pentium Processor G6950 */
314	\|\| u == UINT32_C(0x000106E5) /* 322373.pdf - AAO95 - B1 - Intel Xeon Processor 3400 Series */
315	\|\| u == UINT32_C(0x000106E5) /* 322166.pdf - AAN92 - B1 - Intel CoreTM i7-800 and i5-700 Desktop Processor Series */
316	\|\| 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 */
317	\|\| u == UINT32_C(0x000106A0) /* 321333.pdf - AAM126 - C0 - Intel Xeon Processor 3500 Series Specification */
318	\|\| u == UINT32_C(0x000106A1) /* 321333.pdf - AAM126 - C1 - Intel Xeon Processor 3500 Series Specification */
319	\|\| 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 */
320	\|\| u == UINT32_C(0x000106A5) /* 321333.pdf - AAM126 - D0 - Intel Xeon Processor 3500 Series Specification */
321	\|\| u == UINT32_C(0x000106A5) /* 321324.pdf - AAK139 - D0 - Intel Xeon Processor 5500 Series Specification */
322	\|\| 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 */
323	)
324	return true;
325	return false;
326	}
327
328
329	/**
330	* Intel specific initialization code.
331	*
332	* @returns VBox status code (will only fail if out of memory).
333	*/
334	static int hmR0InitIntel(uint32_t u32FeaturesECX, uint32_t u32FeaturesEDX)
335	{
336	/*
337	* Check that all the required VT-x features are present.
338	* We also assume all VT-x-enabled CPUs support fxsave/fxrstor.
339	*/
340	if ( (u32FeaturesECX & X86_CPUID_FEATURE_ECX_VMX)
341	&& (u32FeaturesEDX & X86_CPUID_FEATURE_EDX_MSR)
342	&& (u32FeaturesEDX & X86_CPUID_FEATURE_EDX_FXSR)
343	)
344	{
345	/** @todo move this into a separate function. */
346	g_HvmR0.vmx.Msrs.u64FeatureCtrl = ASMRdMsr(MSR_IA32_FEATURE_CONTROL);
347
348	/*
349	* First try use native kernel API for controlling VT-x.
350	* (This is only supported by some Mac OS X kernels atm.)
351	*/
352	int rc = g_HvmR0.lLastError = SUPR0EnableVTx(true /* fEnable */);
353	g_HvmR0.vmx.fUsingSUPR0EnableVTx = rc != VERR_NOT_SUPPORTED;
354	if (g_HvmR0.vmx.fUsingSUPR0EnableVTx)
355	{
356	AssertLogRelMsg(rc == VINF_SUCCESS \|\| rc == VERR_VMX_IN_VMX_ROOT_MODE \|\| rc == VERR_VMX_NO_VMX, ("%Rrc\n", rc));
357	if (RT_SUCCESS(rc))
358	{
359	g_HvmR0.vmx.fSupported = true;
360	rc = SUPR0EnableVTx(false /* fEnable */);
361	AssertLogRelRC(rc);
362	}
363	}
364	else
365	{
366	/* We need to check if VT-x has been properly initialized on all
367	CPUs. Some BIOSes do a lousy job. */
368	HMR0FIRSTRC FirstRc;
369	hmR0FirstRcInit(&FirstRc);
370	g_HvmR0.lLastError = RTMpOnAll(hmR0InitIntelCpu, &FirstRc, NULL);
371	if (RT_SUCCESS(g_HvmR0.lLastError))
372	g_HvmR0.lLastError = hmR0FirstRcGetStatus(&FirstRc);
373	}
374	if (RT_SUCCESS(g_HvmR0.lLastError))
375	{
376	/* Reread in case it was changed by hmR0InitIntelCpu(). */
377	g_HvmR0.vmx.Msrs.u64FeatureCtrl = ASMRdMsr(MSR_IA32_FEATURE_CONTROL);
378
379	/*
380	* Read all relevant registers and MSRs.
381	*/
382	g_HvmR0.vmx.u64HostCr4 = ASMGetCR4();
383	g_HvmR0.vmx.u64HostEfer = ASMRdMsr(MSR_K6_EFER);
384	g_HvmR0.vmx.Msrs.u64BasicInfo = ASMRdMsr(MSR_IA32_VMX_BASIC_INFO);
385	g_HvmR0.vmx.Msrs.VmxPinCtls.u = ASMRdMsr(MSR_IA32_VMX_PINBASED_CTLS);
386	g_HvmR0.vmx.Msrs.VmxProcCtls.u = ASMRdMsr(MSR_IA32_VMX_PROCBASED_CTLS);
387	g_HvmR0.vmx.Msrs.VmxExit.u = ASMRdMsr(MSR_IA32_VMX_EXIT_CTLS);
388	g_HvmR0.vmx.Msrs.VmxEntry.u = ASMRdMsr(MSR_IA32_VMX_ENTRY_CTLS);
389	g_HvmR0.vmx.Msrs.u64Misc = ASMRdMsr(MSR_IA32_VMX_MISC);
390	g_HvmR0.vmx.Msrs.u64Cr0Fixed0 = ASMRdMsr(MSR_IA32_VMX_CR0_FIXED0);
391	g_HvmR0.vmx.Msrs.u64Cr0Fixed1 = ASMRdMsr(MSR_IA32_VMX_CR0_FIXED1);
392	g_HvmR0.vmx.Msrs.u64Cr4Fixed0 = ASMRdMsr(MSR_IA32_VMX_CR4_FIXED0);
393	g_HvmR0.vmx.Msrs.u64Cr4Fixed1 = ASMRdMsr(MSR_IA32_VMX_CR4_FIXED1);
394	g_HvmR0.vmx.Msrs.u64VmcsEnum = ASMRdMsr(MSR_IA32_VMX_VMCS_ENUM);
395	/* VPID 16 bits ASID. */
396	g_HvmR0.uMaxAsid = 0x10000; /* exclusive */
397
398	if (g_HvmR0.vmx.Msrs.VmxProcCtls.n.allowed1 & VMX_VMCS_CTRL_PROC_EXEC_USE_SECONDARY_EXEC_CTRL)
399	{
400	g_HvmR0.vmx.Msrs.VmxProcCtls2.u = ASMRdMsr(MSR_IA32_VMX_PROCBASED_CTLS2);
401	if (g_HvmR0.vmx.Msrs.VmxProcCtls2.n.allowed1 & (VMX_VMCS_CTRL_PROC_EXEC2_EPT \| VMX_VMCS_CTRL_PROC_EXEC2_VPID))
402	g_HvmR0.vmx.Msrs.u64EptVpidCaps = ASMRdMsr(MSR_IA32_VMX_EPT_VPID_CAP);
403
404	if (g_HvmR0.vmx.Msrs.VmxProcCtls2.n.allowed1 & VMX_VMCS_CTRL_PROC_EXEC2_VMFUNC)
405	g_HvmR0.vmx.Msrs.u64Vmfunc = ASMRdMsr(MSR_IA32_VMX_VMFUNC);
406	}
407
408	if (!g_HvmR0.vmx.fUsingSUPR0EnableVTx)
409	{
410	/*
411	* Enter root mode
412	*/
413	RTR0MEMOBJ hScatchMemObj;
414	rc = RTR0MemObjAllocCont(&hScatchMemObj, PAGE_SIZE, false /* fExecutable */);
415	if (RT_FAILURE(rc))
416	{
417	LogRel(("hmR0InitIntel: RTR0MemObjAllocCont(,PAGE_SIZE,false) -> %Rrc\n", rc));
418	return rc;
419	}
420
421	void *pvScatchPage = RTR0MemObjAddress(hScatchMemObj);
422	RTHCPHYS HCPhysScratchPage = RTR0MemObjGetPagePhysAddr(hScatchMemObj, 0);
423	ASMMemZeroPage(pvScatchPage);
424
425	/* Set revision dword at the beginning of the structure. */
426	(uint32_t )pvScatchPage = MSR_IA32_VMX_BASIC_INFO_VMCS_ID(g_HvmR0.vmx.Msrs.u64BasicInfo);
427
428	/* Make sure we don't get rescheduled to another cpu during this probe. */
429	RTCCUINTREG fFlags = ASMIntDisableFlags();
430
431	/*
432	* Check CR4.VMXE
433	*/
434	g_HvmR0.vmx.u64HostCr4 = ASMGetCR4();
435	if (!(g_HvmR0.vmx.u64HostCr4 & X86_CR4_VMXE))
436	{
437	/* In theory this bit could be cleared behind our back. Which would cause
438	#UD faults when we try to execute the VMX instructions... */
439	ASMSetCR4(g_HvmR0.vmx.u64HostCr4 \| X86_CR4_VMXE);
440	}
441
442	/*
443	* The only way of checking if we're in VMX root mode or not is to try and enter it.
444	* There is no instruction or control bit that tells us if we're in VMX root mode.
445	* Therefore, try and enter VMX root mode here.
446	*/
447	rc = VMXEnable(HCPhysScratchPage);
448	if (RT_SUCCESS(rc))
449	{
450	g_HvmR0.vmx.fSupported = true;
451	VMXDisable();
452	}
453	else
454	{
455	/*
456	* KVM leaves the CPU in VMX root mode. Not only is this not allowed,
457	* it will crash the host when we enter raw mode, because:
458	*
459	* (a) clearing X86_CR4_VMXE in CR4 causes a #GP (we no longer modify
460	* this bit), and
461	* (b) turning off paging causes a #GP (unavoidable when switching
462	* from long to 32 bits mode or 32 bits to PAE).
463	*
464	* They should fix their code, but until they do we simply refuse to run.
465	*/
466	g_HvmR0.lLastError = VERR_VMX_IN_VMX_ROOT_MODE;
467	Assert(g_HvmR0.vmx.fSupported == false);
468	}
469
470	/* Restore CR4 again; don't leave the X86_CR4_VMXE flag set
471	if it wasn't so before (some software could incorrectly
472	think it's in VMX mode). */
473	ASMSetCR4(g_HvmR0.vmx.u64HostCr4);
474	ASMSetFlags(fFlags);
475
476	RTR0MemObjFree(hScatchMemObj, false);
477	}
478
479	if (g_HvmR0.vmx.fSupported)
480	{
481	rc = VMXR0GlobalInit();
482	if (RT_FAILURE(rc))
483	g_HvmR0.lLastError = rc;
484
485	/*
486	* Install the VT-x methods.
487	*/
488	g_HvmR0.pfnEnterSession = VMXR0Enter;
489	g_HvmR0.pfnThreadCtxCallback = VMXR0ThreadCtxCallback;
490	g_HvmR0.pfnSaveHostState = VMXR0SaveHostState;
491	g_HvmR0.pfnRunGuestCode = VMXR0RunGuestCode;
492	g_HvmR0.pfnEnableCpu = VMXR0EnableCpu;
493	g_HvmR0.pfnDisableCpu = VMXR0DisableCpu;
494	g_HvmR0.pfnInitVM = VMXR0InitVM;
495	g_HvmR0.pfnTermVM = VMXR0TermVM;
496	g_HvmR0.pfnSetupVM = VMXR0SetupVM;
497
498	/*
499	* Check for the VMX-Preemption Timer and adjust for the "VMX-Preemption
500	* Timer Does Not Count Down at the Rate Specified" erratum.
501	*/
502	if (g_HvmR0.vmx.Msrs.VmxPinCtls.n.allowed1 & VMX_VMCS_CTRL_PIN_EXEC_PREEMPT_TIMER)
503	{
504	g_HvmR0.vmx.fUsePreemptTimer = true;
505	g_HvmR0.vmx.cPreemptTimerShift = MSR_IA32_VMX_MISC_PREEMPT_TSC_BIT(g_HvmR0.vmx.Msrs.u64Misc);
506	if (hmR0InitIntelIsSubjectToVmxPreemptionTimerErratum())
507	g_HvmR0.vmx.cPreemptTimerShift = 0; /* This is about right most of the time here. */
508	}
509	}
510	}
511	#ifdef LOG_ENABLED
512	else
513	SUPR0Printf("hmR0InitIntelCpu failed with rc=%d\n", g_HvmR0.lLastError);
514	#endif
515	}
516	else
517	g_HvmR0.lLastError = VERR_VMX_NO_VMX;
518	return VINF_SUCCESS;
519	}
520
521
522	/**
523	* AMD-specific initialization code.
524	*
525	* @returns VBox status code.
526	*/
527	static int hmR0InitAmd(uint32_t u32FeaturesEDX, uint32_t uMaxExtLeaf)
528	{
529	/*
530	* Read all SVM MSRs if SVM is available. (same goes for RDMSR/WRMSR)
531	* We also assume all SVM-enabled CPUs support fxsave/fxrstor.
532	*/
533	int rc;
534	if ( (g_HvmR0.cpuid.u32AMDFeatureECX & X86_CPUID_AMD_FEATURE_ECX_SVM)
535	&& (u32FeaturesEDX & X86_CPUID_FEATURE_EDX_MSR)
536	&& (u32FeaturesEDX & X86_CPUID_FEATURE_EDX_FXSR)
537	&& ASMIsValidExtRange(uMaxExtLeaf)
538	&& uMaxExtLeaf >= 0x8000000a
539	)
540	{
541	/* Call the global AMD-V initialization routine. */
542	rc = SVMR0GlobalInit();
543	if (RT_FAILURE(rc))
544	{
545	g_HvmR0.lLastError = rc;
546	return rc;
547	}
548
549	/*
550	* Install the AMD-V methods.
551	*/
552	g_HvmR0.pfnEnterSession = SVMR0Enter;
553	g_HvmR0.pfnThreadCtxCallback = SVMR0ThreadCtxCallback;
554	g_HvmR0.pfnSaveHostState = SVMR0SaveHostState;
555	g_HvmR0.pfnRunGuestCode = SVMR0RunGuestCode;
556	g_HvmR0.pfnEnableCpu = SVMR0EnableCpu;
557	g_HvmR0.pfnDisableCpu = SVMR0DisableCpu;
558	g_HvmR0.pfnInitVM = SVMR0InitVM;
559	g_HvmR0.pfnTermVM = SVMR0TermVM;
560	g_HvmR0.pfnSetupVM = SVMR0SetupVM;
561
562	/* Query AMD features. */
563	uint32_t u32Dummy;
564	ASMCpuId(0x8000000a, &g_HvmR0.svm.u32Rev, &g_HvmR0.uMaxAsid, &u32Dummy, &g_HvmR0.svm.u32Features);
565
566	/*
567	* We need to check if AMD-V has been properly initialized on all CPUs.
568	* Some BIOSes might do a poor job.
569	*/
570	HMR0FIRSTRC FirstRc;
571	hmR0FirstRcInit(&FirstRc);
572	rc = RTMpOnAll(hmR0InitAmdCpu, &FirstRc, NULL);
573	AssertRC(rc);
574	if (RT_SUCCESS(rc))
575	rc = hmR0FirstRcGetStatus(&FirstRc);
576	#ifndef DEBUG_bird
577	AssertMsg(rc == VINF_SUCCESS \|\| rc == VERR_SVM_IN_USE,
578	("hmR0InitAmdCpu failed for cpu %d with rc=%Rrc\n", hmR0FirstRcGetCpuId(&FirstRc), rc));
579	#endif
580	if (RT_SUCCESS(rc))
581	{
582	/* Read the HWCR MSR for diagnostics. */
583	g_HvmR0.svm.u64MsrHwcr = ASMRdMsr(MSR_K8_HWCR);
584	g_HvmR0.svm.fSupported = true;
585	}
586	else
587	{
588	g_HvmR0.lLastError = rc;
589	if (rc == VERR_SVM_DISABLED \|\| rc == VERR_SVM_IN_USE)
590	rc = VINF_SUCCESS; /* Don't fail if AMD-V is disabled or in use. */
591	}
592	}
593	else
594	{
595	rc = VINF_SUCCESS; /* Don't fail if AMD-V is not supported. See @bugref{6785}. */
596	g_HvmR0.lLastError = VERR_SVM_NO_SVM;
597	}
598	return rc;
599	}
600
601
602	/**
603	* Does global Ring-0 HM initialization (at module init).
604	*
605	* @returns VBox status code.
606	*/
607	VMMR0_INT_DECL(int) HMR0Init(void)
608	{
609	/*
610	* Initialize the globals.
611	*/
612	g_HvmR0.fEnabled = false;
613	static RTONCE s_OnceInit = RTONCE_INITIALIZER;
614	g_HvmR0.EnableAllCpusOnce = s_OnceInit;
615	for (unsigned i = 0; i < RT_ELEMENTS(g_HvmR0.aCpuInfo); i++)
616	{
617	g_HvmR0.aCpuInfo[i].hMemObj = NIL_RTR0MEMOBJ;
618	g_HvmR0.aCpuInfo[i].idCpu = NIL_RTCPUID;
619	}
620
621	/* Fill in all callbacks with placeholders. */
622	g_HvmR0.pfnEnterSession = hmR0DummyEnter;
623	g_HvmR0.pfnThreadCtxCallback = hmR0DummyThreadCtxCallback;
624	g_HvmR0.pfnSaveHostState = hmR0DummySaveHostState;
625	g_HvmR0.pfnRunGuestCode = hmR0DummyRunGuestCode;
626	g_HvmR0.pfnEnableCpu = hmR0DummyEnableCpu;
627	g_HvmR0.pfnDisableCpu = hmR0DummyDisableCpu;
628	g_HvmR0.pfnInitVM = hmR0DummyInitVM;
629	g_HvmR0.pfnTermVM = hmR0DummyTermVM;
630	g_HvmR0.pfnSetupVM = hmR0DummySetupVM;
631
632	/* Default is global VT-x/AMD-V init. */
633	g_HvmR0.fGlobalInit = true;
634
635	/*
636	* Make sure aCpuInfo is big enough for all the CPUs on this system.
637	*/
638	if (RTMpGetArraySize() > RT_ELEMENTS(g_HvmR0.aCpuInfo))
639	{
640	LogRel(("HM: Too many real CPUs/cores/threads - %u, max %u\n", RTMpGetArraySize(), RT_ELEMENTS(g_HvmR0.aCpuInfo)));
641	return VERR_TOO_MANY_CPUS;
642	}
643
644	/*
645	* Check for VT-x and AMD-V capabilities.
646	*/
647	int rc;
648	if (ASMHasCpuId())
649	{
650	/* Standard features. */
651	uint32_t uMaxLeaf, u32VendorEBX, u32VendorECX, u32VendorEDX;
652	ASMCpuId(0, &uMaxLeaf, &u32VendorEBX, &u32VendorECX, &u32VendorEDX);
653	if (ASMIsValidStdRange(uMaxLeaf))
654	{
655	uint32_t u32FeaturesECX, u32FeaturesEDX, u32Dummy;
656	ASMCpuId(1, &u32Dummy, &u32Dummy, &u32FeaturesECX, &u32FeaturesEDX);
657
658	/* Query AMD features. */
659	uint32_t uMaxExtLeaf = ASMCpuId_EAX(0x80000000);
660	if (ASMIsValidExtRange(uMaxExtLeaf))
661	ASMCpuId(0x80000001, &u32Dummy, &u32Dummy,
662	&g_HvmR0.cpuid.u32AMDFeatureECX,
663	&g_HvmR0.cpuid.u32AMDFeatureEDX);
664	else
665	g_HvmR0.cpuid.u32AMDFeatureECX = g_HvmR0.cpuid.u32AMDFeatureEDX = 0;
666
667	/* Go to CPU specific initialization code. */
668	if ( ASMIsIntelCpuEx(u32VendorEBX, u32VendorECX, u32VendorEDX)
669	\|\| ASMIsViaCentaurCpuEx(u32VendorEBX, u32VendorECX, u32VendorEDX))
670	{
671	rc = hmR0InitIntel(u32FeaturesECX, u32FeaturesEDX);
672	if (RT_FAILURE(rc))
673	return rc;
674	}
675	else if (ASMIsAmdCpuEx(u32VendorEBX, u32VendorECX, u32VendorEDX))
676	{
677	rc = hmR0InitAmd(u32FeaturesEDX, uMaxExtLeaf);
678	if (RT_FAILURE(rc))
679	return rc;
680	}
681	else
682	g_HvmR0.lLastError = VERR_HM_UNKNOWN_CPU;
683	}
684	else
685	g_HvmR0.lLastError = VERR_HM_UNKNOWN_CPU;
686	}
687	else
688	g_HvmR0.lLastError = VERR_HM_NO_CPUID;
689
690	/*
691	* Register notification callbacks that we can use to disable/enable CPUs
692	* when brought offline/online or suspending/resuming.
693	*/
694	if (!g_HvmR0.vmx.fUsingSUPR0EnableVTx)
695	{
696	rc = RTMpNotificationRegister(hmR0MpEventCallback, NULL);
697	AssertRC(rc);
698
699	rc = RTPowerNotificationRegister(hmR0PowerCallback, NULL);
700	AssertRC(rc);
701	}
702
703	/* We return success here because module init shall not fail if HM
704	fails to initialize. */
705	return VINF_SUCCESS;
706	}
707
708
709	/**
710	* Does global Ring-0 HM termination (at module termination).
711	*
712	* @returns VBox status code.
713	*/
714	VMMR0_INT_DECL(int) HMR0Term(void)
715	{
716	int rc;
717	if ( g_HvmR0.vmx.fSupported
718	&& g_HvmR0.vmx.fUsingSUPR0EnableVTx)
719	{
720	/*
721	* Simple if the host OS manages VT-x.
722	*/
723	Assert(g_HvmR0.fGlobalInit);
724	rc = SUPR0EnableVTx(false /* fEnable */);
725
726	for (unsigned iCpu = 0; iCpu < RT_ELEMENTS(g_HvmR0.aCpuInfo); iCpu++)
727	{
728	g_HvmR0.aCpuInfo[iCpu].fConfigured = false;
729	Assert(g_HvmR0.aCpuInfo[iCpu].hMemObj == NIL_RTR0MEMOBJ);
730	}
731	}
732	else
733	{
734	Assert(!g_HvmR0.vmx.fUsingSUPR0EnableVTx);
735	if (!g_HvmR0.vmx.fUsingSUPR0EnableVTx)
736	{
737	/* Doesn't really matter if this fails. */
738	rc = RTMpNotificationDeregister(hmR0MpEventCallback, NULL); AssertRC(rc);
739	rc = RTPowerNotificationDeregister(hmR0PowerCallback, NULL); AssertRC(rc);
740	}
741	else
742	rc = VINF_SUCCESS;
743
744	/*
745	* Disable VT-x/AMD-V on all CPUs if we enabled it before.
746	*/
747	if (g_HvmR0.fGlobalInit)
748	{
749	HMR0FIRSTRC FirstRc;
750	hmR0FirstRcInit(&FirstRc);
751	rc = RTMpOnAll(hmR0DisableCpuCallback, NULL /* pvUser 1 */, &FirstRc);
752	Assert(RT_SUCCESS(rc) \|\| rc == VERR_NOT_SUPPORTED);
753	if (RT_SUCCESS(rc))
754	{
755	rc = hmR0FirstRcGetStatus(&FirstRc);
756	AssertMsgRC(rc, ("%u: %Rrc\n", hmR0FirstRcGetCpuId(&FirstRc), rc));
757	}
758	}
759
760	/*
761	* Free the per-cpu pages used for VT-x and AMD-V.
762	*/
763	for (unsigned i = 0; i < RT_ELEMENTS(g_HvmR0.aCpuInfo); i++)
764	{
765	if (g_HvmR0.aCpuInfo[i].hMemObj != NIL_RTR0MEMOBJ)
766	{
767	RTR0MemObjFree(g_HvmR0.aCpuInfo[i].hMemObj, false);
768	g_HvmR0.aCpuInfo[i].hMemObj = NIL_RTR0MEMOBJ;
769	}
770	}
771	}
772
773	/** @todo This needs cleaning up. There's no matching
774	* hmR0TermIntel()/hmR0TermAmd() and all the VT-x/AMD-V specific bits
775	* should move into their respective modules. */
776	/* Finally, call global VT-x/AMD-V termination. */
777	if (g_HvmR0.vmx.fSupported)
778	VMXR0GlobalTerm();
779	else if (g_HvmR0.svm.fSupported)
780	SVMR0GlobalTerm();
781
782	return rc;
783	}
784
785
786	/**
787	* Worker function used by hmR0PowerCallback() and HMR0Init() to initalize VT-x
788	* on a CPU.
789	*
790	* @param idCpu The identifier for the CPU the function is called on.
791	* @param pvUser1 Pointer to the first RC structure.
792	* @param pvUser2 Ignored.
793	*/
794	static DECLCALLBACK(void) hmR0InitIntelCpu(RTCPUID idCpu, void pvUser1, void pvUser2)
795	{
796	/** @todo Unify code with SUPR0QueryVTCaps(). */
797	PHMR0FIRSTRC pFirstRc = (PHMR0FIRSTRC)pvUser1;
798	Assert(!RTThreadPreemptIsEnabled(NIL_RTTHREAD));
799	Assert(idCpu == (RTCPUID)RTMpCpuIdToSetIndex(idCpu)); /** @todo fix idCpu == index assumption (rainy day) */
800	NOREF(idCpu); NOREF(pvUser2);
801
802	uint64_t u64FeatMsr = ASMRdMsr(MSR_IA32_FEATURE_CONTROL);
803	bool const fMaybeSmxMode = RT_BOOL(ASMGetCR4() & X86_CR4_SMXE);
804	bool fMsrLocked = RT_BOOL(u64FeatMsr & MSR_IA32_FEATURE_CONTROL_LOCK);
805	bool fSmxVmxAllowed = RT_BOOL(u64FeatMsr & MSR_IA32_FEATURE_CONTROL_SMX_VMXON);
806	bool fVmxAllowed = RT_BOOL(u64FeatMsr & MSR_IA32_FEATURE_CONTROL_VMXON);
807
808	/* Check if the LOCK bit is set but excludes the required VMXON bit. */
809	int rc = VERR_HM_IPE_1;
810	if (fMsrLocked)
811	{
812	if (fVmxAllowed && fSmxVmxAllowed)
813	rc = VINF_SUCCESS;
814	else if (!fVmxAllowed && !fSmxVmxAllowed)
815	rc = VERR_VMX_MSR_ALL_VMXON_DISABLED;
816	else if (!fMaybeSmxMode)
817	{
818	if (fVmxAllowed)
819	rc = VINF_SUCCESS;
820	else
821	rc = VERR_VMX_MSR_VMXON_DISABLED;
822	}
823	else
824	{
825	/*
826	* CR4.SMXE is set but this doesn't mean the CPU is necessarily in SMX mode. We shall assume
827	* that it is -not- and that it is a stupid BIOS/OS setting CR4.SMXE for no good reason.
828	* See @bugref{6873}.
829	*/
830	Assert(fMaybeSmxMode == true);
831	rc = VINF_SUCCESS;
832	}
833	}
834	else
835	{
836	/*
837	* MSR is not yet locked; we can change it ourselves here.
838	* Once the lock bit is set, this MSR can no longer be modified.
839	*
840	* Set both the VMXON and SMX_VMXON bits as we can't determine SMX mode
841	* accurately. See @bugref{6873}.
842	*/
843	u64FeatMsr \|= MSR_IA32_FEATURE_CONTROL_LOCK
844	\| MSR_IA32_FEATURE_CONTROL_SMX_VMXON
845	\| MSR_IA32_FEATURE_CONTROL_VMXON;
846	ASMWrMsr(MSR_IA32_FEATURE_CONTROL, u64FeatMsr);
847
848	/* Verify. */
849	u64FeatMsr = ASMRdMsr(MSR_IA32_FEATURE_CONTROL);
850	fMsrLocked = RT_BOOL(u64FeatMsr & MSR_IA32_FEATURE_CONTROL_LOCK);
851	fSmxVmxAllowed = fMsrLocked && RT_BOOL(u64FeatMsr & MSR_IA32_FEATURE_CONTROL_SMX_VMXON);
852	fVmxAllowed = fMsrLocked && RT_BOOL(u64FeatMsr & MSR_IA32_FEATURE_CONTROL_VMXON);
853	if (fSmxVmxAllowed && fVmxAllowed)
854	rc = VINF_SUCCESS;
855	else
856	rc = VERR_VMX_MSR_LOCKING_FAILED;
857	}
858
859	hmR0FirstRcSetStatus(pFirstRc, rc);
860	}
861
862
863	/**
864	* Worker function used by hmR0PowerCallback() and HMR0Init() to initalize AMD-V
865	* on a CPU.
866	*
867	* @param idCpu The identifier for the CPU the function is called on.
868	* @param pvUser1 Pointer to the first RC structure.
869	* @param pvUser2 Ignored.
870	*/
871	static DECLCALLBACK(void) hmR0InitAmdCpu(RTCPUID idCpu, void pvUser1, void pvUser2)
872	{
873	PHMR0FIRSTRC pFirstRc = (PHMR0FIRSTRC)pvUser1;
874	Assert(!RTThreadPreemptIsEnabled(NIL_RTTHREAD));
875	Assert(idCpu == (RTCPUID)RTMpCpuIdToSetIndex(idCpu)); /** @todo fix idCpu == index assumption (rainy day) */
876	NOREF(idCpu); NOREF(pvUser2);
877
878	/* Check if SVM is disabled. */
879	int rc;
880	uint64_t fVmCr = ASMRdMsr(MSR_K8_VM_CR);
881	if (!(fVmCr & MSR_K8_VM_CR_SVM_DISABLE))
882	{
883	/* Turn on SVM in the EFER MSR. */
884	uint64_t fEfer = ASMRdMsr(MSR_K6_EFER);
885	if (fEfer & MSR_K6_EFER_SVME)
886	rc = VERR_SVM_IN_USE;
887	else
888	{
889	ASMWrMsr(MSR_K6_EFER, fEfer \| MSR_K6_EFER_SVME);
890
891	/* Paranoia. */
892	fEfer = ASMRdMsr(MSR_K6_EFER);
893	if (fEfer & MSR_K6_EFER_SVME)
894	{
895	/* Restore previous value. */
896	ASMWrMsr(MSR_K6_EFER, fEfer & ~MSR_K6_EFER_SVME);
897	rc = VINF_SUCCESS;
898	}
899	else
900	rc = VERR_SVM_ILLEGAL_EFER_MSR;
901	}
902	}
903	else
904	rc = VERR_SVM_DISABLED;
905
906	hmR0FirstRcSetStatus(pFirstRc, rc);
907	}
908
909
910	/**
911	* Enable VT-x or AMD-V on the current CPU
912	*
913	* @returns VBox status code.
914	* @param pVM Pointer to the VM (can be NULL).
915	* @param idCpu The identifier for the CPU the function is called on.
916	*
917	* @remarks Maybe called with interrupts disabled!
918	*/
919	static int hmR0EnableCpu(PVM pVM, RTCPUID idCpu)
920	{
921	PHMGLOBALCPUINFO pCpu = &g_HvmR0.aCpuInfo[idCpu];
922
923	Assert(idCpu == (RTCPUID)RTMpCpuIdToSetIndex(idCpu)); /** @todo fix idCpu == index assumption (rainy day) */
924	Assert(idCpu < RT_ELEMENTS(g_HvmR0.aCpuInfo));
925	Assert(!pCpu->fConfigured);
926	Assert(!RTThreadPreemptIsEnabled(NIL_RTTHREAD));
927
928	pCpu->idCpu = idCpu;
929	/* Do NOT reset cTlbFlushes here, see @bugref{6255}. */
930
931	int rc;
932	if (g_HvmR0.vmx.fSupported && g_HvmR0.vmx.fUsingSUPR0EnableVTx)
933	rc = g_HvmR0.pfnEnableCpu(pCpu, pVM, NULL /* pvCpuPage */, NIL_RTHCPHYS, true, &g_HvmR0.vmx.Msrs);
934	else
935	{
936	AssertLogRelMsgReturn(pCpu->hMemObj != NIL_RTR0MEMOBJ, ("hmR0EnableCpu failed idCpu=%u.\n", idCpu), VERR_HM_IPE_1);
937	void *pvCpuPage = RTR0MemObjAddress(pCpu->hMemObj);
938	RTHCPHYS HCPhysCpuPage = RTR0MemObjGetPagePhysAddr(pCpu->hMemObj, 0 /* iPage */);
939
940	if (g_HvmR0.vmx.fSupported)
941	rc = g_HvmR0.pfnEnableCpu(pCpu, pVM, pvCpuPage, HCPhysCpuPage, false, &g_HvmR0.vmx.Msrs);
942	else
943	rc = g_HvmR0.pfnEnableCpu(pCpu, pVM, pvCpuPage, HCPhysCpuPage, false, NULL /* pvArg */);
944	}
945	AssertRC(rc);
946	if (RT_SUCCESS(rc))
947	pCpu->fConfigured = true;
948
949	return rc;
950	}
951
952
953	/**
954	* Worker function passed to RTMpOnAll() that is to be called on all CPUs.
955	*
956	* @param idCpu The identifier for the CPU the function is called on.
957	* @param pvUser1 Opaque pointer to the VM (can be NULL!).
958	* @param pvUser2 The 2nd user argument.
959	*/
960	static DECLCALLBACK(void) hmR0EnableCpuCallback(RTCPUID idCpu, void pvUser1, void pvUser2)
961	{
962	PVM pVM = (PVM)pvUser1; /* can be NULL! */
963	PHMR0FIRSTRC pFirstRc = (PHMR0FIRSTRC)pvUser2;
964	AssertReturnVoid(g_HvmR0.fGlobalInit);
965	Assert(!RTThreadPreemptIsEnabled(NIL_RTTHREAD));
966	hmR0FirstRcSetStatus(pFirstRc, hmR0EnableCpu(pVM, idCpu));
967	}
968
969
970	/**
971	* RTOnce callback employed by HMR0EnableAllCpus.
972	*
973	* @returns VBox status code.
974	* @param pvUser Pointer to the VM.
975	* @param pvUserIgnore NULL, ignored.
976	*/
977	static DECLCALLBACK(int32_t) hmR0EnableAllCpuOnce(void *pvUser)
978	{
979	PVM pVM = (PVM)pvUser;
980
981	/*
982	* Indicate that we've initialized.
983	*
984	* Note! There is a potential race between this function and the suspend
985	* notification. Kind of unlikely though, so ignored for now.
986	*/
987	AssertReturn(!g_HvmR0.fEnabled, VERR_HM_ALREADY_ENABLED_IPE);
988	ASMAtomicWriteBool(&g_HvmR0.fEnabled, true);
989
990	/*
991	* The global init variable is set by the first VM.
992	*/
993	g_HvmR0.fGlobalInit = pVM->hm.s.fGlobalInit;
994
995	#ifdef VBOX_STRICT
996	for (unsigned i = 0; i < RT_ELEMENTS(g_HvmR0.aCpuInfo); i++)
997	{
998	Assert(g_HvmR0.aCpuInfo[i].hMemObj == NIL_RTR0MEMOBJ);
999	Assert(!g_HvmR0.aCpuInfo[i].fConfigured);
1000	Assert(!g_HvmR0.aCpuInfo[i].cTlbFlushes);
1001	Assert(!g_HvmR0.aCpuInfo[i].uCurrentAsid);
1002	}
1003	#endif
1004
1005	int rc;
1006	if ( g_HvmR0.vmx.fSupported
1007	&& g_HvmR0.vmx.fUsingSUPR0EnableVTx)
1008	{
1009	/*
1010	* Global VT-x initialization API (only darwin for now).
1011	*/
1012	rc = SUPR0EnableVTx(true /* fEnable */);
1013	if (RT_SUCCESS(rc))
1014	{
1015	/* If the host provides a VT-x init API, then we'll rely on that for global init. */
1016	g_HvmR0.fGlobalInit = pVM->hm.s.fGlobalInit = true;
1017	}
1018	else
1019	AssertMsgFailed(("hmR0EnableAllCpuOnce/SUPR0EnableVTx: rc=%Rrc\n", rc));
1020	}
1021	else
1022	{
1023	/*
1024	* We're doing the job ourselves.
1025	*/
1026	/* Allocate one page per cpu for the global VT-x and AMD-V pages */
1027	for (unsigned i = 0; i < RT_ELEMENTS(g_HvmR0.aCpuInfo); i++)
1028	{
1029	Assert(g_HvmR0.aCpuInfo[i].hMemObj == NIL_RTR0MEMOBJ);
1030
1031	if (RTMpIsCpuPossible(RTMpCpuIdFromSetIndex(i)))
1032	{
1033	rc = RTR0MemObjAllocCont(&g_HvmR0.aCpuInfo[i].hMemObj, PAGE_SIZE, false /* executable R0 mapping */);
1034	AssertLogRelRCReturn(rc, rc);
1035
1036	void *pvR0 = RTR0MemObjAddress(g_HvmR0.aCpuInfo[i].hMemObj); Assert(pvR0);
1037	ASMMemZeroPage(pvR0);
1038	}
1039	}
1040
1041	rc = VINF_SUCCESS;
1042	}
1043
1044	if ( RT_SUCCESS(rc)
1045	&& g_HvmR0.fGlobalInit)
1046	{
1047	/* First time, so initialize each cpu/core. */
1048	HMR0FIRSTRC FirstRc;
1049	hmR0FirstRcInit(&FirstRc);
1050	rc = RTMpOnAll(hmR0EnableCpuCallback, (void *)pVM, &FirstRc);
1051	if (RT_SUCCESS(rc))
1052	rc = hmR0FirstRcGetStatus(&FirstRc);
1053	AssertMsgRC(rc, ("hmR0EnableAllCpuOnce failed for cpu %d with rc=%d\n", hmR0FirstRcGetCpuId(&FirstRc), rc));
1054	}
1055
1056	return rc;
1057	}
1058
1059
1060	/**
1061	* Sets up HM on all cpus.
1062	*
1063	* @returns VBox status code.
1064	* @param pVM Pointer to the VM.
1065	*/
1066	VMMR0_INT_DECL(int) HMR0EnableAllCpus(PVM pVM)
1067	{
1068	/* Make sure we don't touch HM after we've disabled HM in preparation of a suspend. */
1069	if (ASMAtomicReadBool(&g_HvmR0.fSuspended))
1070	return VERR_HM_SUSPEND_PENDING;
1071
1072	return RTOnce(&g_HvmR0.EnableAllCpusOnce, hmR0EnableAllCpuOnce, pVM);
1073	}
1074
1075
1076	/**
1077	* Disable VT-x or AMD-V on the current CPU.
1078	*
1079	* @returns VBox status code.
1080	* @param idCpu The identifier for the CPU the function is called on.
1081	*
1082	* @remarks Must be called with preemption disabled.
1083	*/
1084	static int hmR0DisableCpu(RTCPUID idCpu)
1085	{
1086	PHMGLOBALCPUINFO pCpu = &g_HvmR0.aCpuInfo[idCpu];
1087
1088	Assert(!g_HvmR0.vmx.fSupported \|\| !g_HvmR0.vmx.fUsingSUPR0EnableVTx);
1089	Assert(!RTThreadPreemptIsEnabled(NIL_RTTHREAD));
1090	Assert(idCpu == (RTCPUID)RTMpCpuIdToSetIndex(idCpu)); /** @todo fix idCpu == index assumption (rainy day) */
1091	Assert(idCpu < RT_ELEMENTS(g_HvmR0.aCpuInfo));
1092	Assert(!pCpu->fConfigured \|\| pCpu->hMemObj != NIL_RTR0MEMOBJ);
1093
1094	if (pCpu->hMemObj == NIL_RTR0MEMOBJ)
1095	return pCpu->fConfigured ? VERR_NO_MEMORY : VINF_SUCCESS /* not initialized. */;
1096
1097	int rc;
1098	if (pCpu->fConfigured)
1099	{
1100	void *pvCpuPage = RTR0MemObjAddress(pCpu->hMemObj);
1101	RTHCPHYS HCPhysCpuPage = RTR0MemObjGetPagePhysAddr(pCpu->hMemObj, 0);
1102
1103	rc = g_HvmR0.pfnDisableCpu(pCpu, pvCpuPage, HCPhysCpuPage);
1104	AssertRCReturn(rc, rc);
1105
1106	pCpu->fConfigured = false;
1107	pCpu->idCpu = NIL_RTCPUID;
1108	}
1109	else
1110	rc = VINF_SUCCESS; /* nothing to do */
1111
1112	return rc;
1113	}
1114
1115
1116	/**
1117	* Worker function passed to RTMpOnAll() that is to be called on the target
1118	* CPUs.
1119	*
1120	* @param idCpu The identifier for the CPU the function is called on.
1121	* @param pvUser1 The 1st user argument.
1122	* @param pvUser2 Opaque pointer to the FirstRc.
1123	*/
1124	static DECLCALLBACK(void) hmR0DisableCpuCallback(RTCPUID idCpu, void pvUser1, void pvUser2)
1125	{
1126	PHMR0FIRSTRC pFirstRc = (PHMR0FIRSTRC)pvUser2; NOREF(pvUser1);
1127	AssertReturnVoid(g_HvmR0.fGlobalInit);
1128	hmR0FirstRcSetStatus(pFirstRc, hmR0DisableCpu(idCpu));
1129	}
1130
1131
1132	/**
1133	* Callback function invoked when a cpu goes online or offline.
1134	*
1135	* @param enmEvent The Mp event.
1136	* @param idCpu The identifier for the CPU the function is called on.
1137	* @param pvData Opaque data (PVM pointer).
1138	*/
1139	static DECLCALLBACK(void) hmR0MpEventCallback(RTMPEVENT enmEvent, RTCPUID idCpu, void *pvData)
1140	{
1141	NOREF(pvData);
1142
1143	/*
1144	* We only care about uninitializing a CPU that is going offline. When a
1145	* CPU comes online, the initialization is done lazily in HMR0Enter().
1146	*/
1147	Assert(!RTThreadPreemptIsEnabled(NIL_RTTHREAD));
1148	switch (enmEvent)
1149	{
1150	case RTMPEVENT_OFFLINE:
1151	{
1152	int rc = hmR0DisableCpu(idCpu);
1153	AssertRC(rc);
1154	break;
1155	}
1156
1157	default:
1158	break;
1159	}
1160	}
1161
1162
1163	/**
1164	* Called whenever a system power state change occurs.
1165	*
1166	* @param enmEvent The Power event.
1167	* @param pvUser User argument.
1168	*/
1169	static DECLCALLBACK(void) hmR0PowerCallback(RTPOWEREVENT enmEvent, void *pvUser)
1170	{
1171	NOREF(pvUser);
1172	Assert(!g_HvmR0.vmx.fSupported \|\| !g_HvmR0.vmx.fUsingSUPR0EnableVTx);
1173
1174	#ifdef LOG_ENABLED
1175	if (enmEvent == RTPOWEREVENT_SUSPEND)
1176	SUPR0Printf("hmR0PowerCallback RTPOWEREVENT_SUSPEND\n");
1177	else
1178	SUPR0Printf("hmR0PowerCallback RTPOWEREVENT_RESUME\n");
1179	#endif
1180
1181	if (enmEvent == RTPOWEREVENT_SUSPEND)
1182	ASMAtomicWriteBool(&g_HvmR0.fSuspended, true);
1183
1184	if (g_HvmR0.fEnabled)
1185	{
1186	int rc;
1187	HMR0FIRSTRC FirstRc;
1188	hmR0FirstRcInit(&FirstRc);
1189
1190	if (enmEvent == RTPOWEREVENT_SUSPEND)
1191	{
1192	if (g_HvmR0.fGlobalInit)
1193	{
1194	/* Turn off VT-x or AMD-V on all CPUs. */
1195	rc = RTMpOnAll(hmR0DisableCpuCallback, NULL /* pvUser 1 */, &FirstRc);
1196	Assert(RT_SUCCESS(rc) \|\| rc == VERR_NOT_SUPPORTED);
1197	}
1198	/* else nothing to do here for the local init case */
1199	}
1200	else
1201	{
1202	/* Reinit the CPUs from scratch as the suspend state might have
1203	messed with the MSRs. (lousy BIOSes as usual) */
1204	if (g_HvmR0.vmx.fSupported)
1205	rc = RTMpOnAll(hmR0InitIntelCpu, &FirstRc, NULL);
1206	else
1207	rc = RTMpOnAll(hmR0InitAmdCpu, &FirstRc, NULL);
1208	Assert(RT_SUCCESS(rc) \|\| rc == VERR_NOT_SUPPORTED);
1209	if (RT_SUCCESS(rc))
1210	rc = hmR0FirstRcGetStatus(&FirstRc);
1211	#ifdef LOG_ENABLED
1212	if (RT_FAILURE(rc))
1213	SUPR0Printf("hmR0PowerCallback hmR0InitXxxCpu failed with %Rc\n", rc);
1214	#endif
1215	if (g_HvmR0.fGlobalInit)
1216	{
1217	/* Turn VT-x or AMD-V back on on all CPUs. */
1218	rc = RTMpOnAll(hmR0EnableCpuCallback, NULL /* pVM /, &FirstRc / output ignored */);
1219	Assert(RT_SUCCESS(rc) \|\| rc == VERR_NOT_SUPPORTED);
1220	}
1221	/* else nothing to do here for the local init case */
1222	}
1223	}
1224
1225	if (enmEvent == RTPOWEREVENT_RESUME)
1226	ASMAtomicWriteBool(&g_HvmR0.fSuspended, false);
1227	}
1228
1229
1230	/**
1231	* Does Ring-0 per VM HM initialization.
1232	*
1233	* This will copy HM global into the VM structure and call the CPU specific
1234	* init routine which will allocate resources for each virtual CPU and such.
1235	*
1236	* @returns VBox status code.
1237	* @param pVM Pointer to the VM.
1238	*/
1239	VMMR0_INT_DECL(int) HMR0InitVM(PVM pVM)
1240	{
1241	AssertReturn(pVM, VERR_INVALID_PARAMETER);
1242
1243	#ifdef LOG_ENABLED
1244	SUPR0Printf("HMR0InitVM: %p\n", pVM);
1245	#endif
1246
1247	/* Make sure we don't touch HM after we've disabled HM in preparation of a suspend. */
1248	if (ASMAtomicReadBool(&g_HvmR0.fSuspended))
1249	return VERR_HM_SUSPEND_PENDING;
1250
1251	/*
1252	* Copy globals to the VM structure.
1253	*/
1254	pVM->hm.s.vmx.fSupported = g_HvmR0.vmx.fSupported;
1255	pVM->hm.s.svm.fSupported = g_HvmR0.svm.fSupported;
1256
1257	pVM->hm.s.vmx.fUsePreemptTimer = g_HvmR0.vmx.fUsePreemptTimer;
1258	pVM->hm.s.vmx.cPreemptTimerShift = g_HvmR0.vmx.cPreemptTimerShift;
1259	pVM->hm.s.vmx.u64HostCr4 = g_HvmR0.vmx.u64HostCr4;
1260	pVM->hm.s.vmx.u64HostEfer = g_HvmR0.vmx.u64HostEfer;
1261	pVM->hm.s.vmx.Msrs = g_HvmR0.vmx.Msrs;
1262	pVM->hm.s.svm.u64MsrHwcr = g_HvmR0.svm.u64MsrHwcr;
1263	pVM->hm.s.svm.u32Rev = g_HvmR0.svm.u32Rev;
1264	pVM->hm.s.svm.u32Features = g_HvmR0.svm.u32Features;
1265	pVM->hm.s.cpuid.u32AMDFeatureECX = g_HvmR0.cpuid.u32AMDFeatureECX;
1266	pVM->hm.s.cpuid.u32AMDFeatureEDX = g_HvmR0.cpuid.u32AMDFeatureEDX;
1267	pVM->hm.s.lLastError = g_HvmR0.lLastError;
1268
1269	pVM->hm.s.uMaxAsid = g_HvmR0.uMaxAsid;
1270
1271
1272	if (!pVM->hm.s.cMaxResumeLoops) /* allow ring-3 overrides */
1273	{
1274	pVM->hm.s.cMaxResumeLoops = 1024;
1275	if (RTThreadPreemptIsPendingTrusty())
1276	pVM->hm.s.cMaxResumeLoops = 8192;
1277	}
1278
1279	/*
1280	* Initialize some per CPU fields.
1281	*/
1282	for (VMCPUID i = 0; i < pVM->cCpus; i++)
1283	{
1284	PVMCPU pVCpu = &pVM->aCpus[i];
1285	pVCpu->hm.s.idEnteredCpu = NIL_RTCPUID;
1286	pVCpu->hm.s.idLastCpu = NIL_RTCPUID;
1287
1288	/* We'll aways increment this the first time (host uses ASID 0). */
1289	AssertReturn(!pVCpu->hm.s.uCurrentAsid, VERR_HM_IPE_3);
1290	}
1291
1292	/*
1293	* Call the hardware specific initialization method.
1294	*/
1295	return g_HvmR0.pfnInitVM(pVM);
1296	}
1297
1298
1299	/**
1300	* Does Ring-0 per VM HM termination.
1301	*
1302	* @returns VBox status code.
1303	* @param pVM Pointer to the VM.
1304	*/
1305	VMMR0_INT_DECL(int) HMR0TermVM(PVM pVM)
1306	{
1307	Log(("HMR0TermVM: %p\n", pVM));
1308	AssertReturn(pVM, VERR_INVALID_PARAMETER);
1309
1310	/*
1311	* Call the hardware specific method.
1312	*
1313	* Note! We might be preparing for a suspend, so the pfnTermVM() functions should probably not
1314	* mess with VT-x/AMD-V features on the CPU, currently all they do is free memory so this is safe.
1315	*/
1316	return g_HvmR0.pfnTermVM(pVM);
1317	}
1318
1319
1320	/**
1321	* Sets up a VT-x or AMD-V session.
1322	*
1323	* This is mostly about setting up the hardware VM state.
1324	*
1325	* @returns VBox status code.
1326	* @param pVM Pointer to the VM.
1327	*/
1328	VMMR0_INT_DECL(int) HMR0SetupVM(PVM pVM)
1329	{
1330	Log(("HMR0SetupVM: %p\n", pVM));
1331	AssertReturn(pVM, VERR_INVALID_PARAMETER);
1332
1333	/* Make sure we don't touch HM after we've disabled HM in preparation of a suspend. */
1334	AssertReturn(!ASMAtomicReadBool(&g_HvmR0.fSuspended), VERR_HM_SUSPEND_PENDING);
1335
1336	/* On first entry we'll sync everything. */
1337	for (VMCPUID i = 0; i < pVM->cCpus; i++)
1338	HMCPU_CF_RESET_TO(&pVM->aCpus[i], HM_CHANGED_HOST_CONTEXT \| HM_CHANGED_ALL_GUEST);
1339
1340	/*
1341	* Call the hardware specific setup VM method. This requires the CPU to be
1342	* enabled for AMD-V/VT-x and preemption to be prevented.
1343	*/
1344	RTTHREADPREEMPTSTATE PreemptState = RTTHREADPREEMPTSTATE_INITIALIZER;
1345	RTThreadPreemptDisable(&PreemptState);
1346	RTCPUID idCpu = RTMpCpuId();
1347
1348	/* Enable VT-x or AMD-V if local init is required. */
1349	int rc;
1350	if (!g_HvmR0.fGlobalInit)
1351	{
1352	rc = hmR0EnableCpu(pVM, idCpu);
1353	AssertRCReturnStmt(rc, RTThreadPreemptRestore(&PreemptState), rc);
1354	}
1355
1356	/* Setup VT-x or AMD-V. */
1357	rc = g_HvmR0.pfnSetupVM(pVM);
1358
1359	/* Disable VT-x or AMD-V if local init was done before. */
1360	if (!g_HvmR0.fGlobalInit)
1361	{
1362	int rc2 = hmR0DisableCpu(idCpu);
1363	AssertRC(rc2);
1364	}
1365
1366	RTThreadPreemptRestore(&PreemptState);
1367	return rc;
1368	}
1369
1370
1371	/**
1372	* Turns on HM on the CPU if necessary and initializes the bare minimum state
1373	* required for entering HM context.
1374	*
1375	* @returns VBox status code.
1376	* @param pvCpu Pointer to the VMCPU.
1377	*
1378	* @remarks No-long-jump zone!!!
1379	*/
1380	VMMR0_INT_DECL(int) HMR0EnterCpu(PVMCPU pVCpu)
1381	{
1382	Assert(!RTThreadPreemptIsEnabled(NIL_RTTHREAD));
1383
1384	int rc = VINF_SUCCESS;
1385	RTCPUID idCpu = RTMpCpuId();
1386	PHMGLOBALCPUINFO pCpu = &g_HvmR0.aCpuInfo[idCpu];
1387	AssertPtr(pCpu);
1388
1389	/* Enable VT-x or AMD-V if local init is required, or enable if it's a freshly onlined CPU. */
1390	if (!pCpu->fConfigured)
1391	rc = hmR0EnableCpu(pVCpu->CTX_SUFF(pVM), idCpu);
1392
1393	/* Reload host-state (back from ring-3/migrated CPUs) and shared guest/host bits. */
1394	HMCPU_CF_SET(pVCpu, HM_CHANGED_HOST_CONTEXT \| HM_CHANGED_HOST_GUEST_SHARED_STATE);
1395
1396	Assert(pCpu->idCpu == idCpu && pCpu->idCpu != NIL_RTCPUID);
1397	pVCpu->hm.s.idEnteredCpu = idCpu;
1398	return rc;
1399	}
1400
1401
1402	/**
1403	* Enters the VT-x or AMD-V session.
1404	*
1405	* @returns VBox status code.
1406	* @param pVM Pointer to the VM.
1407	* @param pVCpu Pointer to the VMCPU.
1408	*
1409	* @remarks This is called with preemption disabled.
1410	*/
1411	VMMR0_INT_DECL(int) HMR0Enter(PVM pVM, PVMCPU pVCpu)
1412	{
1413	/* Make sure we can't enter a session after we've disabled HM in preparation of a suspend. */
1414	AssertReturn(!ASMAtomicReadBool(&g_HvmR0.fSuspended), VERR_HM_SUSPEND_PENDING);
1415	Assert(!RTThreadPreemptIsEnabled(NIL_RTTHREAD));
1416
1417	/* Load the bare minimum state required for entering HM. */
1418	int rc = HMR0EnterCpu(pVCpu);
1419	AssertRCReturn(rc, rc);
1420
1421	#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
1422	AssertReturn(!VMMR0ThreadCtxHooksAreRegistered(pVCpu), VERR_HM_IPE_5);
1423	bool fStartedSet = PGMR0DynMapStartOrMigrateAutoSet(pVCpu);
1424	#endif
1425
1426	RTCPUID idCpu = RTMpCpuId();
1427	PHMGLOBALCPUINFO pCpu = &g_HvmR0.aCpuInfo[idCpu];
1428	Assert(pCpu);
1429	Assert(HMCPU_CF_IS_SET(pVCpu, HM_CHANGED_HOST_CONTEXT \| HM_CHANGED_HOST_GUEST_SHARED_STATE));
1430
1431	rc = g_HvmR0.pfnEnterSession(pVM, pVCpu, pCpu);
1432	AssertMsgRCReturn(rc, ("pfnEnterSession failed. rc=%Rrc pVCpu=%p HostCpuId=%u\n", rc, pVCpu, idCpu), rc);
1433
1434	/* Load the host-state as we may be resuming code after a longjmp and quite
1435	possibly now be scheduled on a different CPU. */
1436	rc = g_HvmR0.pfnSaveHostState(pVM, pVCpu);
1437	AssertMsgRCReturn(rc, ("pfnSaveHostState failed. rc=%Rrc pVCpu=%p HostCpuId=%u\n", rc, pVCpu, idCpu), rc);
1438
1439	#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
1440	if (fStartedSet)
1441	PGMRZDynMapReleaseAutoSet(pVCpu);
1442	#endif
1443
1444	/* Keep track of the CPU owning the VMCS for debugging scheduling weirdness and ring-3 calls. */
1445	if (RT_FAILURE(rc))
1446	pVCpu->hm.s.idEnteredCpu = NIL_RTCPUID;
1447	return rc;
1448	}
1449
1450
1451	/**
1452	* Deinitializes the bare minimum state used for HM context and if necessary
1453	* disable HM on the CPU.
1454	*
1455	* @returns VBox status code.
1456	* @param pVCpu Pointer to the VMCPU.
1457	*
1458	* @remarks No-long-jump zone!!!
1459	*/
1460	VMMR0_INT_DECL(int) HMR0LeaveCpu(PVMCPU pVCpu)
1461	{
1462	Assert(!RTThreadPreemptIsEnabled(NIL_RTTHREAD));
1463	VMCPU_ASSERT_EMT_RETURN(pVCpu, VERR_HM_WRONG_CPU_1);
1464
1465	RTCPUID idCpu = RTMpCpuId();
1466	PHMGLOBALCPUINFO pCpu = &g_HvmR0.aCpuInfo[idCpu];
1467
1468	if ( !g_HvmR0.fGlobalInit
1469	&& pCpu->fConfigured)
1470	{
1471	int rc = hmR0DisableCpu(idCpu);
1472	AssertRCReturn(rc, rc);
1473	Assert(!pCpu->fConfigured);
1474	Assert(pCpu->idCpu == NIL_RTCPUID);
1475
1476	/* For obtaining a non-zero ASID/VPID on next re-entry. */
1477	pVCpu->hm.s.idLastCpu = NIL_RTCPUID;
1478	}
1479
1480	/* Clear it while leaving HM context, hmPokeCpuForTlbFlush() relies on this. */
1481	pVCpu->hm.s.idEnteredCpu = NIL_RTCPUID;
1482
1483	/* Clear the VCPU <-> host CPU mapping as we've left HM context. */
1484	ASMAtomicWriteU32(&pVCpu->idHostCpu, NIL_RTCPUID);
1485
1486	return VINF_SUCCESS;
1487	}
1488
1489
1490	/**
1491	* Thread-context hook for HM.
1492	*
1493	* @param enmEvent The thread-context event.
1494	* @param pvUser Opaque pointer to the VMCPU.
1495	*/
1496	VMMR0_INT_DECL(void) HMR0ThreadCtxCallback(RTTHREADCTXEVENT enmEvent, void *pvUser)
1497	{
1498	PVMCPU pVCpu = (PVMCPU)pvUser;
1499	Assert(pVCpu);
1500	Assert(g_HvmR0.pfnThreadCtxCallback);
1501
1502	g_HvmR0.pfnThreadCtxCallback(enmEvent, pVCpu, g_HvmR0.fGlobalInit);
1503	}
1504
1505
1506	/**
1507	* Runs guest code in a hardware accelerated VM.
1508	*
1509	* @returns VBox status code.
1510	* @param pVM Pointer to the VM.
1511	* @param pVCpu Pointer to the VMCPU.
1512	*
1513	* @remarks Can be called with preemption enabled if thread-context hooks are
1514	* used!!!
1515	*/
1516	VMMR0_INT_DECL(int) HMR0RunGuestCode(PVM pVM, PVMCPU pVCpu)
1517	{
1518	#ifdef VBOX_STRICT
1519	/* With thread-context hooks we would be running this code with preemption enabled. */
1520	if (!RTThreadPreemptIsEnabled(NIL_RTTHREAD))
1521	{
1522	PHMGLOBALCPUINFO pCpu = &g_HvmR0.aCpuInfo[RTMpCpuId()];
1523	Assert(!VMCPU_FF_IS_PENDING(pVCpu, VMCPU_FF_PGM_SYNC_CR3 \| VMCPU_FF_PGM_SYNC_CR3_NON_GLOBAL));
1524	Assert(pCpu->fConfigured);
1525	AssertReturn(!ASMAtomicReadBool(&g_HvmR0.fSuspended), VERR_HM_SUSPEND_PENDING);
1526	}
1527	#endif
1528
1529	#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
1530	AssertReturn(!VMMR0ThreadCtxHooksAreRegistered(pVCpu), VERR_HM_IPE_4);
1531	Assert(!RTThreadPreemptIsEnabled(NIL_RTTHREAD));
1532	PGMRZDynMapStartAutoSet(pVCpu);
1533	#endif
1534
1535	int rc = g_HvmR0.pfnRunGuestCode(pVM, pVCpu, CPUMQueryGuestCtxPtr(pVCpu));
1536
1537	#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
1538	PGMRZDynMapReleaseAutoSet(pVCpu);
1539	#endif
1540	return rc;
1541	}
1542
1543	#if HC_ARCH_BITS == 32 && defined(VBOX_ENABLE_64_BITS_GUESTS) && !defined(VBOX_WITH_HYBRID_32BIT_KERNEL)
1544
1545	/**
1546	* Save guest FPU/XMM state (64 bits guest mode & 32 bits host only)
1547	*
1548	* @returns VBox status code.
1549	* @param pVM Pointer to the VM.
1550	* @param pVCpu Pointer to the VMCPU.
1551	* @param pCtx Pointer to the guest CPU context.
1552	*/
1553	VMMR0_INT_DECL(int) HMR0SaveFPUState(PVM pVM, PVMCPU pVCpu, PCPUMCTX pCtx)
1554	{
1555	STAM_COUNTER_INC(&pVCpu->hm.s.StatFpu64SwitchBack);
1556	if (pVM->hm.s.vmx.fSupported)
1557	return VMXR0Execute64BitsHandler(pVM, pVCpu, pCtx, HM64ON32OP_HMRCSaveGuestFPU64, 0, NULL);
1558	return SVMR0Execute64BitsHandler(pVM, pVCpu, pCtx, HM64ON32OP_HMRCSaveGuestFPU64, 0, NULL);
1559	}
1560
1561
1562	/**
1563	* Save guest debug state (64 bits guest mode & 32 bits host only)
1564	*
1565	* @returns VBox status code.
1566	* @param pVM Pointer to the VM.
1567	* @param pVCpu Pointer to the VMCPU.
1568	* @param pCtx Pointer to the guest CPU context.
1569	*/
1570	VMMR0_INT_DECL(int) HMR0SaveDebugState(PVM pVM, PVMCPU pVCpu, PCPUMCTX pCtx)
1571	{
1572	STAM_COUNTER_INC(&pVCpu->hm.s.StatDebug64SwitchBack);
1573	if (pVM->hm.s.vmx.fSupported)
1574	return VMXR0Execute64BitsHandler(pVM, pVCpu, pCtx, HM64ON32OP_HMRCSaveGuestDebug64, 0, NULL);
1575	return SVMR0Execute64BitsHandler(pVM, pVCpu, pCtx, HM64ON32OP_HMRCSaveGuestDebug64, 0, NULL);
1576	}
1577
1578
1579	/**
1580	* Test the 32->64 bits switcher.
1581	*
1582	* @returns VBox status code.
1583	* @param pVM Pointer to the VM.
1584	*/
1585	VMMR0_INT_DECL(int) HMR0TestSwitcher3264(PVM pVM)
1586	{
1587	PVMCPU pVCpu = &pVM->aCpus[0];
1588	PCPUMCTX pCtx = CPUMQueryGuestCtxPtr(pVCpu);
1589	uint32_t aParam[5] = {0, 1, 2, 3, 4};
1590	int rc;
1591
1592	STAM_PROFILE_ADV_START(&pVCpu->hm.s.StatWorldSwitch3264, z);
1593	if (pVM->hm.s.vmx.fSupported)
1594	rc = VMXR0Execute64BitsHandler(pVM, pVCpu, pCtx, HM64ON32OP_HMRCTestSwitcher64, 5, &aParam[0]);
1595	else
1596	rc = SVMR0Execute64BitsHandler(pVM, pVCpu, pCtx, HM64ON32OP_HMRCTestSwitcher64, 5, &aParam[0]);
1597	STAM_PROFILE_ADV_STOP(&pVCpu->hm.s.StatWorldSwitch3264, z);
1598
1599	return rc;
1600	}
1601
1602	#endif /* HC_ARCH_BITS == 32 && defined(VBOX_WITH_64_BITS_GUESTS) && !defined(VBOX_WITH_HYBRID_32BIT_KERNEL) */
1603
1604	/**
1605	* Returns suspend status of the host.
1606	*
1607	* @returns Suspend pending or not.
1608	*/
1609	VMMR0_INT_DECL(bool) HMR0SuspendPending(void)
1610	{
1611	return ASMAtomicReadBool(&g_HvmR0.fSuspended);
1612	}
1613
1614
1615	/**
1616	* Returns the cpu structure for the current cpu.
1617	* Keep in mind that there is no guarantee it will stay the same (long jumps to ring 3!!!).
1618	*
1619	* @returns The cpu structure pointer.
1620	*/
1621	VMMR0DECL(PHMGLOBALCPUINFO) HMR0GetCurrentCpu(void)
1622	{
1623	Assert(!RTThreadPreemptIsEnabled(NIL_RTTHREAD));
1624	RTCPUID idCpu = RTMpCpuId();
1625	Assert(idCpu < RT_ELEMENTS(g_HvmR0.aCpuInfo));
1626	return &g_HvmR0.aCpuInfo[idCpu];
1627	}
1628
1629
1630	/**
1631	* Returns the cpu structure for the current cpu.
1632	* Keep in mind that there is no guarantee it will stay the same (long jumps to ring 3!!!).
1633	*
1634	* @returns The cpu structure pointer.
1635	* @param idCpu id of the VCPU.
1636	*/
1637	VMMR0DECL(PHMGLOBALCPUINFO) HMR0GetCurrentCpuEx(RTCPUID idCpu)
1638	{
1639	Assert(idCpu < RT_ELEMENTS(g_HvmR0.aCpuInfo));
1640	return &g_HvmR0.aCpuInfo[idCpu];
1641	}
1642
1643
1644	/**
1645	* Save a pending IO read.
1646	*
1647	* @param pVCpu Pointer to the VMCPU.
1648	* @param GCPtrRip Address of IO instruction.
1649	* @param GCPtrRipNext Address of the next instruction.
1650	* @param uPort Port address.
1651	* @param uAndVal AND mask for saving the result in eax.
1652	* @param cbSize Read size.
1653	*/
1654	VMMR0_INT_DECL(void) HMR0SavePendingIOPortRead(PVMCPU pVCpu, RTGCPTR GCPtrRip, RTGCPTR GCPtrRipNext,
1655	unsigned uPort, unsigned uAndVal, unsigned cbSize)
1656	{
1657	pVCpu->hm.s.PendingIO.enmType = HMPENDINGIO_PORT_READ;
1658	pVCpu->hm.s.PendingIO.GCPtrRip = GCPtrRip;
1659	pVCpu->hm.s.PendingIO.GCPtrRipNext = GCPtrRipNext;
1660	pVCpu->hm.s.PendingIO.s.Port.uPort = uPort;
1661	pVCpu->hm.s.PendingIO.s.Port.uAndVal = uAndVal;
1662	pVCpu->hm.s.PendingIO.s.Port.cbSize = cbSize;
1663	return;
1664	}
1665
1666
1667	/**
1668	* Save a pending IO write.
1669	*
1670	* @param pVCpu Pointer to the VMCPU.
1671	* @param GCPtrRIP Address of IO instruction.
1672	* @param uPort Port address.
1673	* @param uAndVal AND mask for fetching the result from eax.
1674	* @param cbSize Read size.
1675	*/
1676	VMMR0_INT_DECL(void) HMR0SavePendingIOPortWrite(PVMCPU pVCpu, RTGCPTR GCPtrRip, RTGCPTR GCPtrRipNext,
1677	unsigned uPort, unsigned uAndVal, unsigned cbSize)
1678	{
1679	pVCpu->hm.s.PendingIO.enmType = HMPENDINGIO_PORT_WRITE;
1680	pVCpu->hm.s.PendingIO.GCPtrRip = GCPtrRip;
1681	pVCpu->hm.s.PendingIO.GCPtrRipNext = GCPtrRipNext;
1682	pVCpu->hm.s.PendingIO.s.Port.uPort = uPort;
1683	pVCpu->hm.s.PendingIO.s.Port.uAndVal = uAndVal;
1684	pVCpu->hm.s.PendingIO.s.Port.cbSize = cbSize;
1685	return;
1686	}
1687
1688
1689	/**
1690	* Raw-mode switcher hook - disable VT-x if it's active and the current
1691	* switcher turns off paging.
1692	*
1693	* @returns VBox status code.
1694	* @param pVM Pointer to the VM.
1695	* @param enmSwitcher The switcher we're about to use.
1696	* @param pfVTxDisabled Where to store whether VT-x was disabled or not.
1697	*/
1698	VMMR0_INT_DECL(int) HMR0EnterSwitcher(PVM pVM, VMMSWITCHER enmSwitcher, bool *pfVTxDisabled)
1699	{
1700	NOREF(pVM);
1701
1702	Assert(!RTThreadPreemptIsEnabled(NIL_RTTHREAD));
1703
1704	*pfVTxDisabled = false;
1705
1706	/* No such issues with AMD-V */
1707	if (!g_HvmR0.vmx.fSupported)
1708	return VINF_SUCCESS;
1709
1710	/* Check if the swithcing we're up to is safe. */
1711	switch (enmSwitcher)
1712	{
1713	case VMMSWITCHER_32_TO_32:
1714	case VMMSWITCHER_PAE_TO_PAE:
1715	return VINF_SUCCESS; /* safe switchers as they don't turn off paging */
1716
1717	case VMMSWITCHER_32_TO_PAE:
1718	case VMMSWITCHER_PAE_TO_32: /* is this one actually used?? */
1719	case VMMSWITCHER_AMD64_TO_32:
1720	case VMMSWITCHER_AMD64_TO_PAE:
1721	break; /* unsafe switchers */
1722
1723	default:
1724	AssertFailedReturn(VERR_HM_WRONG_SWITCHER);
1725	}
1726
1727	/* When using SUPR0EnableVTx we must let the host suspend and resume VT-x,
1728	regardless of whether we're currently using VT-x or not. */
1729	if (g_HvmR0.vmx.fUsingSUPR0EnableVTx)
1730	{
1731	*pfVTxDisabled = SUPR0SuspendVTxOnCpu();
1732	return VINF_SUCCESS;
1733	}
1734
1735	/** @todo Check if this code is presumtive wrt other VT-x users on the
1736	* system... */
1737
1738	/* Nothing to do if we haven't enabled VT-x. */
1739	if (!g_HvmR0.fEnabled)
1740	return VINF_SUCCESS;
1741
1742	/* Local init implies the CPU is currently not in VMX root mode. */
1743	if (!g_HvmR0.fGlobalInit)
1744	return VINF_SUCCESS;
1745
1746	/* Ok, disable VT-x. */
1747	PHMGLOBALCPUINFO pCpu = HMR0GetCurrentCpu();
1748	AssertReturn(pCpu && pCpu->hMemObj != NIL_RTR0MEMOBJ, VERR_HM_IPE_2);
1749
1750	*pfVTxDisabled = true;
1751	void *pvCpuPage = RTR0MemObjAddress(pCpu->hMemObj);
1752	RTHCPHYS HCPhysCpuPage = RTR0MemObjGetPagePhysAddr(pCpu->hMemObj, 0);
1753	return VMXR0DisableCpu(pCpu, pvCpuPage, HCPhysCpuPage);
1754	}
1755
1756
1757	/**
1758	* Raw-mode switcher hook - re-enable VT-x if was active and the current
1759	* switcher turned off paging.
1760	*
1761	* @param pVM Pointer to the VM.
1762	* @param fVTxDisabled Whether VT-x was disabled or not.
1763	*/
1764	VMMR0_INT_DECL(void) HMR0LeaveSwitcher(PVM pVM, bool fVTxDisabled)
1765	{
1766	Assert(!ASMIntAreEnabled());
1767
1768	if (!fVTxDisabled)
1769	return; /* nothing to do */
1770
1771	Assert(g_HvmR0.vmx.fSupported);
1772	if (g_HvmR0.vmx.fUsingSUPR0EnableVTx)
1773	SUPR0ResumeVTxOnCpu(fVTxDisabled);
1774	else
1775	{
1776	Assert(g_HvmR0.fEnabled);
1777	Assert(g_HvmR0.fGlobalInit);
1778
1779	PHMGLOBALCPUINFO pCpu = HMR0GetCurrentCpu();
1780	AssertReturnVoid(pCpu && pCpu->hMemObj != NIL_RTR0MEMOBJ);
1781
1782	void *pvCpuPage = RTR0MemObjAddress(pCpu->hMemObj);
1783	RTHCPHYS HCPhysCpuPage = RTR0MemObjGetPagePhysAddr(pCpu->hMemObj, 0);
1784	VMXR0EnableCpu(pCpu, pVM, pvCpuPage, HCPhysCpuPage, false, &g_HvmR0.vmx.Msrs);
1785	}
1786	}
1787
1788	#ifdef VBOX_STRICT
1789
1790	/**
1791	* Dumps a descriptor.
1792	*
1793	* @param pDesc Descriptor to dump.
1794	* @param Sel Selector number.
1795	* @param pszMsg Message to prepend the log entry with.
1796	*/
1797	VMMR0DECL(void) HMR0DumpDescriptor(PCX86DESCHC pDesc, RTSEL Sel, const char *pszMsg)
1798	{
1799	/*
1800	* Make variable description string.
1801	*/
1802	static struct
1803	{
1804	unsigned cch;
1805	const char *psz;
1806	} const s_aTypes[32] =
1807	{
1808	# define STRENTRY(str) { sizeof(str) - 1, str }
1809
1810	/* system */
1811	# if HC_ARCH_BITS == 64
1812	STRENTRY("Reserved0 "), /* 0x00 */
1813	STRENTRY("Reserved1 "), /* 0x01 */
1814	STRENTRY("LDT "), /* 0x02 */
1815	STRENTRY("Reserved3 "), /* 0x03 */
1816	STRENTRY("Reserved4 "), /* 0x04 */
1817	STRENTRY("Reserved5 "), /* 0x05 */
1818	STRENTRY("Reserved6 "), /* 0x06 */
1819	STRENTRY("Reserved7 "), /* 0x07 */
1820	STRENTRY("Reserved8 "), /* 0x08 */
1821	STRENTRY("TSS64Avail "), /* 0x09 */
1822	STRENTRY("ReservedA "), /* 0x0a */
1823	STRENTRY("TSS64Busy "), /* 0x0b */
1824	STRENTRY("Call64 "), /* 0x0c */
1825	STRENTRY("ReservedD "), /* 0x0d */
1826	STRENTRY("Int64 "), /* 0x0e */
1827	STRENTRY("Trap64 "), /* 0x0f */
1828	# else
1829	STRENTRY("Reserved0 "), /* 0x00 */
1830	STRENTRY("TSS16Avail "), /* 0x01 */
1831	STRENTRY("LDT "), /* 0x02 */
1832	STRENTRY("TSS16Busy "), /* 0x03 */
1833	STRENTRY("Call16 "), /* 0x04 */
1834	STRENTRY("Task "), /* 0x05 */
1835	STRENTRY("Int16 "), /* 0x06 */
1836	STRENTRY("Trap16 "), /* 0x07 */
1837	STRENTRY("Reserved8 "), /* 0x08 */
1838	STRENTRY("TSS32Avail "), /* 0x09 */
1839	STRENTRY("ReservedA "), /* 0x0a */
1840	STRENTRY("TSS32Busy "), /* 0x0b */
1841	STRENTRY("Call32 "), /* 0x0c */
1842	STRENTRY("ReservedD "), /* 0x0d */
1843	STRENTRY("Int32 "), /* 0x0e */
1844	STRENTRY("Trap32 "), /* 0x0f */
1845	# endif
1846	/* non system */
1847	STRENTRY("DataRO "), /* 0x10 */
1848	STRENTRY("DataRO Accessed "), /* 0x11 */
1849	STRENTRY("DataRW "), /* 0x12 */
1850	STRENTRY("DataRW Accessed "), /* 0x13 */
1851	STRENTRY("DataDownRO "), /* 0x14 */
1852	STRENTRY("DataDownRO Accessed "), /* 0x15 */
1853	STRENTRY("DataDownRW "), /* 0x16 */
1854	STRENTRY("DataDownRW Accessed "), /* 0x17 */
1855	STRENTRY("CodeEO "), /* 0x18 */
1856	STRENTRY("CodeEO Accessed "), /* 0x19 */
1857	STRENTRY("CodeER "), /* 0x1a */
1858	STRENTRY("CodeER Accessed "), /* 0x1b */
1859	STRENTRY("CodeConfEO "), /* 0x1c */
1860	STRENTRY("CodeConfEO Accessed "), /* 0x1d */
1861	STRENTRY("CodeConfER "), /* 0x1e */
1862	STRENTRY("CodeConfER Accessed ") /* 0x1f */
1863	# undef SYSENTRY
1864	};
1865	# define ADD_STR(psz, pszAdd) do { strcpy(psz, pszAdd); psz += strlen(pszAdd); } while (0)
1866	char szMsg[128];
1867	char *psz = &szMsg[0];
1868	unsigned i = pDesc->Gen.u1DescType << 4 \| pDesc->Gen.u4Type;
1869	memcpy(psz, s_aTypes[i].psz, s_aTypes[i].cch);
1870	psz += s_aTypes[i].cch;
1871
1872	if (pDesc->Gen.u1Present)
1873	ADD_STR(psz, "Present ");
1874	else
1875	ADD_STR(psz, "Not-Present ");
1876	# if HC_ARCH_BITS == 64
1877	if (pDesc->Gen.u1Long)
1878	ADD_STR(psz, "64-bit ");
1879	else
1880	ADD_STR(psz, "Comp ");
1881	# else
1882	if (pDesc->Gen.u1Granularity)
1883	ADD_STR(psz, "Page ");
1884	if (pDesc->Gen.u1DefBig)
1885	ADD_STR(psz, "32-bit ");
1886	else
1887	ADD_STR(psz, "16-bit ");
1888	# endif
1889	# undef ADD_STR
1890	*psz = '\0';
1891
1892	/*
1893	* Limit and Base and format the output.
1894	*/
1895	uint32_t u32Limit = X86DESC_LIMIT_G(pDesc);
1896
1897	# if HC_ARCH_BITS == 64
1898	uint64_t u32Base = X86DESC64_BASE(pDesc);
1899	Log(("%s %04x - %RX64 %RX64 - base=%RX64 limit=%08x dpl=%d %s\n", pszMsg,
1900	Sel, pDesc->au64[0], pDesc->au64[1], u32Base, u32Limit, pDesc->Gen.u2Dpl, szMsg));
1901	# else
1902	uint32_t u32Base = X86DESC_BASE(pDesc);
1903	Log(("%s %04x - %08x %08x - base=%08x limit=%08x dpl=%d %s\n", pszMsg,
1904	Sel, pDesc->au32[0], pDesc->au32[1], u32Base, u32Limit, pDesc->Gen.u2Dpl, szMsg));
1905	# endif
1906	}
1907
1908
1909	/**
1910	* Formats a full register dump.
1911	*
1912	* @param pVM Pointer to the VM.
1913	* @param pVCpu Pointer to the VMCPU.
1914	* @param pCtx Pointer to the CPU context.
1915	*/
1916	VMMR0DECL(void) HMDumpRegs(PVM pVM, PVMCPU pVCpu, PCPUMCTX pCtx)
1917	{
1918	NOREF(pVM);
1919
1920	/*
1921	* Format the flags.
1922	*/
1923	static struct
1924	{
1925	const char pszSet; const char pszClear; uint32_t fFlag;
1926	} const s_aFlags[] =
1927	{
1928	{ "vip", NULL, X86_EFL_VIP },
1929	{ "vif", NULL, X86_EFL_VIF },
1930	{ "ac", NULL, X86_EFL_AC },
1931	{ "vm", NULL, X86_EFL_VM },
1932	{ "rf", NULL, X86_EFL_RF },
1933	{ "nt", NULL, X86_EFL_NT },
1934	{ "ov", "nv", X86_EFL_OF },
1935	{ "dn", "up", X86_EFL_DF },
1936	{ "ei", "di", X86_EFL_IF },
1937	{ "tf", NULL, X86_EFL_TF },
1938	{ "nt", "pl", X86_EFL_SF },
1939	{ "nz", "zr", X86_EFL_ZF },
1940	{ "ac", "na", X86_EFL_AF },
1941	{ "po", "pe", X86_EFL_PF },
1942	{ "cy", "nc", X86_EFL_CF },
1943	};
1944	char szEFlags[80];
1945	char *psz = szEFlags;
1946	uint32_t uEFlags = pCtx->eflags.u32;
1947	for (unsigned i = 0; i < RT_ELEMENTS(s_aFlags); i++)
1948	{
1949	const char *pszAdd = s_aFlags[i].fFlag & uEFlags ? s_aFlags[i].pszSet : s_aFlags[i].pszClear;
1950	if (pszAdd)
1951	{
1952	strcpy(psz, pszAdd);
1953	psz += strlen(pszAdd);
1954	*psz++ = ' ';
1955	}
1956	}
1957	psz[-1] = '\0';
1958
1959
1960	/*
1961	* Format the registers.
1962	*/
1963	if (CPUMIsGuestIn64BitCode(pVCpu))
1964	{
1965	Log(("rax=%016RX64 rbx=%016RX64 rcx=%016RX64 rdx=%016RX64\n"
1966	"rsi=%016RX64 rdi=%016RX64 r8 =%016RX64 r9 =%016RX64\n"
1967	"r10=%016RX64 r11=%016RX64 r12=%016RX64 r13=%016RX64\n"
1968	"r14=%016RX64 r15=%016RX64\n"
1969	"rip=%016RX64 rsp=%016RX64 rbp=%016RX64 iopl=%d %*s\n"
1970	"cs={%04x base=%016RX64 limit=%08x flags=%08x}\n"
1971	"ds={%04x base=%016RX64 limit=%08x flags=%08x}\n"
1972	"es={%04x base=%016RX64 limit=%08x flags=%08x}\n"
1973	"fs={%04x base=%016RX64 limit=%08x flags=%08x}\n"
1974	"gs={%04x base=%016RX64 limit=%08x flags=%08x}\n"
1975	"ss={%04x base=%016RX64 limit=%08x flags=%08x}\n"
1976	"cr0=%016RX64 cr2=%016RX64 cr3=%016RX64 cr4=%016RX64\n"
1977	"dr0=%016RX64 dr1=%016RX64 dr2=%016RX64 dr3=%016RX64\n"
1978	"dr4=%016RX64 dr5=%016RX64 dr6=%016RX64 dr7=%016RX64\n"
1979	"gdtr=%016RX64:%04x idtr=%016RX64:%04x eflags=%08x\n"
1980	"ldtr={%04x base=%08RX64 limit=%08x flags=%08x}\n"
1981	"tr ={%04x base=%08RX64 limit=%08x flags=%08x}\n"
1982	"SysEnter={cs=%04llx eip=%08llx esp=%08llx}\n"
1983	,
1984	pCtx->rax, pCtx->rbx, pCtx->rcx, pCtx->rdx, pCtx->rsi, pCtx->rdi,
1985	pCtx->r8, pCtx->r9, pCtx->r10, pCtx->r11, pCtx->r12, pCtx->r13,
1986	pCtx->r14, pCtx->r15,
1987	pCtx->rip, pCtx->rsp, pCtx->rbp, X86_EFL_GET_IOPL(uEFlags), 31, szEFlags,
1988	pCtx->cs.Sel, pCtx->cs.u64Base, pCtx->cs.u32Limit, pCtx->cs.Attr.u,
1989	pCtx->ds.Sel, pCtx->ds.u64Base, pCtx->ds.u32Limit, pCtx->ds.Attr.u,
1990	pCtx->es.Sel, pCtx->es.u64Base, pCtx->es.u32Limit, pCtx->es.Attr.u,
1991	pCtx->fs.Sel, pCtx->fs.u64Base, pCtx->fs.u32Limit, pCtx->fs.Attr.u,
1992	pCtx->gs.Sel, pCtx->gs.u64Base, pCtx->gs.u32Limit, pCtx->gs.Attr.u,
1993	pCtx->ss.Sel, pCtx->ss.u64Base, pCtx->ss.u32Limit, pCtx->ss.Attr.u,
1994	pCtx->cr0, pCtx->cr2, pCtx->cr3, pCtx->cr4,
1995	pCtx->dr[0], pCtx->dr[1], pCtx->dr[2], pCtx->dr[3],
1996	pCtx->dr[4], pCtx->dr[5], pCtx->dr[6], pCtx->dr[7],
1997	pCtx->gdtr.pGdt, pCtx->gdtr.cbGdt, pCtx->idtr.pIdt, pCtx->idtr.cbIdt, uEFlags,
1998	pCtx->ldtr.Sel, pCtx->ldtr.u64Base, pCtx->ldtr.u32Limit, pCtx->ldtr.Attr.u,
1999	pCtx->tr.Sel, pCtx->tr.u64Base, pCtx->tr.u32Limit, pCtx->tr.Attr.u,
2000	pCtx->SysEnter.cs, pCtx->SysEnter.eip, pCtx->SysEnter.esp));
2001	}
2002	else
2003	Log(("eax=%08x ebx=%08x ecx=%08x edx=%08x esi=%08x edi=%08x\n"
2004	"eip=%08x esp=%08x ebp=%08x iopl=%d %*s\n"
2005	"cs={%04x base=%016RX64 limit=%08x flags=%08x} dr0=%08RX64 dr1=%08RX64\n"
2006	"ds={%04x base=%016RX64 limit=%08x flags=%08x} dr2=%08RX64 dr3=%08RX64\n"
2007	"es={%04x base=%016RX64 limit=%08x flags=%08x} dr4=%08RX64 dr5=%08RX64\n"
2008	"fs={%04x base=%016RX64 limit=%08x flags=%08x} dr6=%08RX64 dr7=%08RX64\n"
2009	"gs={%04x base=%016RX64 limit=%08x flags=%08x} cr0=%08RX64 cr2=%08RX64\n"
2010	"ss={%04x base=%016RX64 limit=%08x flags=%08x} cr3=%08RX64 cr4=%08RX64\n"
2011	"gdtr=%016RX64:%04x idtr=%016RX64:%04x eflags=%08x\n"
2012	"ldtr={%04x base=%08RX64 limit=%08x flags=%08x}\n"
2013	"tr ={%04x base=%08RX64 limit=%08x flags=%08x}\n"
2014	"SysEnter={cs=%04llx eip=%08llx esp=%08llx}\n"
2015	,
2016	pCtx->eax, pCtx->ebx, pCtx->ecx, pCtx->edx, pCtx->esi, pCtx->edi,
2017	pCtx->eip, pCtx->esp, pCtx->ebp, X86_EFL_GET_IOPL(uEFlags), 31, szEFlags,
2018	pCtx->cs.Sel, pCtx->cs.u64Base, pCtx->cs.u32Limit, pCtx->cs.Attr.u, pCtx->dr[0], pCtx->dr[1],
2019	pCtx->ds.Sel, pCtx->ds.u64Base, pCtx->ds.u32Limit, pCtx->ds.Attr.u, pCtx->dr[2], pCtx->dr[3],
2020	pCtx->es.Sel, pCtx->es.u64Base, pCtx->es.u32Limit, pCtx->es.Attr.u, pCtx->dr[4], pCtx->dr[5],
2021	pCtx->fs.Sel, pCtx->fs.u64Base, pCtx->fs.u32Limit, pCtx->fs.Attr.u, pCtx->dr[6], pCtx->dr[7],
2022	pCtx->gs.Sel, pCtx->gs.u64Base, pCtx->gs.u32Limit, pCtx->gs.Attr.u, pCtx->cr0, pCtx->cr2,
2023	pCtx->ss.Sel, pCtx->ss.u64Base, pCtx->ss.u32Limit, pCtx->ss.Attr.u, pCtx->cr3, pCtx->cr4,
2024	pCtx->gdtr.pGdt, pCtx->gdtr.cbGdt, pCtx->idtr.pIdt, pCtx->idtr.cbIdt, uEFlags,
2025	pCtx->ldtr.Sel, pCtx->ldtr.u64Base, pCtx->ldtr.u32Limit, pCtx->ldtr.Attr.u,
2026	pCtx->tr.Sel, pCtx->tr.u64Base, pCtx->tr.u32Limit, pCtx->tr.Attr.u,
2027	pCtx->SysEnter.cs, pCtx->SysEnter.eip, pCtx->SysEnter.esp));
2028
2029	Log(("FPU:\n"
2030	"FCW=%04x FSW=%04x FTW=%02x\n"
2031	"FOP=%04x FPUIP=%08x CS=%04x Rsrvd1=%04x\n"
2032	"FPUDP=%04x DS=%04x Rsvrd2=%04x MXCSR=%08x MXCSR_MASK=%08x\n"
2033	,
2034	pCtx->fpu.FCW, pCtx->fpu.FSW, pCtx->fpu.FTW,
2035	pCtx->fpu.FOP, pCtx->fpu.FPUIP, pCtx->fpu.CS, pCtx->fpu.Rsrvd1,
2036	pCtx->fpu.FPUDP, pCtx->fpu.DS, pCtx->fpu.Rsrvd2,
2037	pCtx->fpu.MXCSR, pCtx->fpu.MXCSR_MASK));
2038
2039	Log(("MSR:\n"
2040	"EFER =%016RX64\n"
2041	"PAT =%016RX64\n"
2042	"STAR =%016RX64\n"
2043	"CSTAR =%016RX64\n"
2044	"LSTAR =%016RX64\n"
2045	"SFMASK =%016RX64\n"
2046	"KERNELGSBASE =%016RX64\n",
2047	pCtx->msrEFER,
2048	pCtx->msrPAT,
2049	pCtx->msrSTAR,
2050	pCtx->msrCSTAR,
2051	pCtx->msrLSTAR,
2052	pCtx->msrSFMASK,
2053	pCtx->msrKERNELGSBASE));
2054	}
2055
2056	#endif /* VBOX_STRICT */
2057

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source: vbox/trunk/src/VBox/VMM/VMMR0/HMR0.cpp@ 51433

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