HMR0.cpp@ 101626

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1	/* $Id: HMR0.cpp 101412 2023-10-11 07:01:45Z vboxsync $ */
2	/** @file
3	* Hardware Assisted Virtualization Manager (HM) - Host Context Ring-0.
4	*/
5
6	/*
7	* Copyright (C) 2006-2023 Oracle and/or its affiliates.
8	*
9	* This file is part of VirtualBox base platform packages, as
10	* available from https://www.virtualbox.org.
11	*
12	* This program is free software; you can redistribute it and/or
13	* modify it under the terms of the GNU General Public License
14	* as published by the Free Software Foundation, in version 3 of the
15	* License.
16	*
17	* This program is distributed in the hope that it will be useful, but
18	* WITHOUT ANY WARRANTY; without even the implied warranty of
19	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20	* General Public License for more details.
21	*
22	* You should have received a copy of the GNU General Public License
23	* along with this program; if not, see <https://www.gnu.org/licenses>.
24	*
25	* SPDX-License-Identifier: GPL-3.0-only
26	*/
27
28
29	/*********************************************************************************************************************************
30	* Header Files *
31	*********************************************************************************************************************************/
32	#define LOG_GROUP LOG_GROUP_HM
33	#define VMCPU_INCL_CPUM_GST_CTX
34	#include <VBox/vmm/hm.h>
35	#include <VBox/vmm/pgm.h>
36	#include "HMInternal.h"
37	#include <VBox/vmm/vmcc.h>
38	#include <VBox/vmm/hm_svm.h>
39	#include <VBox/vmm/hmvmxinline.h>
40	#include <VBox/err.h>
41	#include <VBox/log.h>
42	#include <iprt/assert.h>
43	#include <iprt/asm.h>
44	#include <iprt/asm-amd64-x86.h>
45	#include <iprt/cpuset.h>
46	#include <iprt/mem.h>
47	#include <iprt/memobj.h>
48	#include <iprt/once.h>
49	#include <iprt/param.h>
50	#include <iprt/power.h>
51	#include <iprt/string.h>
52	#include <iprt/thread.h>
53	#include <iprt/x86.h>
54	#include "HMVMXR0.h"
55	#include "HMSVMR0.h"
56
57
58	/*********************************************************************************************************************************
59	* Internal Functions *
60	*********************************************************************************************************************************/
61	static DECLCALLBACK(void) hmR0EnableCpuCallback(RTCPUID idCpu, void pvUser1, void pvUser2);
62	static DECLCALLBACK(void) hmR0DisableCpuCallback(RTCPUID idCpu, void pvUser1, void pvUser2);
63	static DECLCALLBACK(void) hmR0PowerCallback(RTPOWEREVENT enmEvent, void *pvUser);
64	static DECLCALLBACK(void) hmR0MpEventCallback(RTMPEVENT enmEvent, RTCPUID idCpu, void *pvData);
65
66
67	/*********************************************************************************************************************************
68	* Structures and Typedefs *
69	*********************************************************************************************************************************/
70	/**
71	* This is used to manage the status code of a RTMpOnAll in HM.
72	*/
73	typedef struct HMR0FIRSTRC
74	{
75	/** The status code. */
76	int32_t volatile rc;
77	/** The ID of the CPU reporting the first failure. */
78	RTCPUID volatile idCpu;
79	} HMR0FIRSTRC;
80	/** Pointer to a first return code structure. */
81	typedef HMR0FIRSTRC *PHMR0FIRSTRC;
82
83	/**
84	* Ring-0 method table for AMD-V and VT-x specific operations.
85	*/
86	typedef struct HMR0VTABLE
87	{
88	DECLR0CALLBACKMEMBER(int, pfnEnterSession, (PVMCPUCC pVCpu));
89	DECLR0CALLBACKMEMBER(void, pfnThreadCtxCallback, (RTTHREADCTXEVENT enmEvent, PVMCPUCC pVCpu, bool fGlobalInit));
90	DECLR0CALLBACKMEMBER(int, pfnAssertionCallback, (PVMCPUCC pVCpu));
91	DECLR0CALLBACKMEMBER(int, pfnExportHostState, (PVMCPUCC pVCpu));
92	DECLR0CALLBACKMEMBER(VBOXSTRICTRC, pfnRunGuestCode, (PVMCPUCC pVCpu));
93	DECLR0CALLBACKMEMBER(int, pfnEnableCpu, (PHMPHYSCPU pHostCpu, PVMCC pVM, void *pvCpuPage, RTHCPHYS HCPhysCpuPage,
94	bool fEnabledByHost, PCSUPHWVIRTMSRS pHwvirtMsrs));
95	DECLR0CALLBACKMEMBER(int, pfnDisableCpu, (PHMPHYSCPU pHostCpu, void *pvCpuPage, RTHCPHYS HCPhysCpuPage));
96	DECLR0CALLBACKMEMBER(int, pfnInitVM, (PVMCC pVM));
97	DECLR0CALLBACKMEMBER(int, pfnTermVM, (PVMCC pVM));
98	DECLR0CALLBACKMEMBER(int, pfnSetupVM, (PVMCC pVM));
99	} HMR0VTABLE;
100
101
102	/*********************************************************************************************************************************
103	* Global Variables *
104	*********************************************************************************************************************************/
105	/** The active ring-0 HM operations (copied from one of the table at init). */
106	static HMR0VTABLE g_HmR0Ops;
107	/** Indicates whether the host is suspending or not. We'll refuse a few
108	* actions when the host is being suspended to speed up the suspending and
109	* avoid trouble. */
110	static bool volatile g_fHmSuspended;
111	/** If set, VT-x/AMD-V is enabled globally at init time, otherwise it's
112	* enabled and disabled each time it's used to execute guest code. */
113	static bool g_fHmGlobalInit;
114	/** Host kernel flags that HM might need to know (SUPKERNELFEATURES_XXX). */
115	uint32_t g_fHmHostKernelFeatures;
116	/** Maximum allowed ASID/VPID (inclusive).
117	* @todo r=bird: This is exclusive for VT-x according to source code comment.
118	* Couldn't immediately find any docs on AMD-V, but suspect it is
119	* exclusive there as well given how hmR0SvmFlushTaggedTlb() use it. */
120	uint32_t g_uHmMaxAsid;
121
122
123	/** Set if VT-x (VMX) is supported by the CPU. */
124	bool g_fHmVmxSupported = false;
125	/** VMX: Whether we're using the preemption timer or not. */
126	bool g_fHmVmxUsePreemptTimer;
127	/** VMX: The shift mask employed by the VMX-Preemption timer. */
128	uint8_t g_cHmVmxPreemptTimerShift;
129	/** VMX: Set if swapping EFER is supported. */
130	bool g_fHmVmxSupportsVmcsEfer = false;
131	/** VMX: Whether we're using SUPR0EnableVTx or not. */
132	static bool g_fHmVmxUsingSUPR0EnableVTx = false;
133	/** VMX: Set if we've called SUPR0EnableVTx(true) and should disable it during
134	* module termination. */
135	static bool g_fHmVmxCalledSUPR0EnableVTx = false;
136	/** VMX: Host CR4 value (set by ring-0 VMX init) */
137	uint64_t g_uHmVmxHostCr4;
138	/** VMX: Host EFER value (set by ring-0 VMX init) */
139	uint64_t g_uHmVmxHostMsrEfer;
140	/** VMX: Host SMM monitor control (used for logging/diagnostics) */
141	uint64_t g_uHmVmxHostSmmMonitorCtl;
142
143
144	/** Set if AMD-V is supported by the CPU. */
145	bool g_fHmSvmSupported = false;
146	/** SVM revision. */
147	uint32_t g_uHmSvmRev;
148	/** SVM feature bits from cpuid 0x8000000a */
149	uint32_t g_fHmSvmFeatures;
150
151
152	/** MSRs. */
153	SUPHWVIRTMSRS g_HmMsrs;
154
155	/** Last recorded error code during HM ring-0 init. */
156	static int32_t g_rcHmInit = VINF_SUCCESS;
157
158	/** Per CPU globals. */
159	static HMPHYSCPU g_aHmCpuInfo[RTCPUSET_MAX_CPUS];
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	static bool g_fHmEnabled = false;
165	/** Serialize initialization in HMR0EnableAllCpus. */
166	static RTONCE g_HmEnableAllCpusOnce = RTONCE_INITIALIZER;
167
168
169	/** HM ring-0 operations for VT-x. */
170	static HMR0VTABLE const g_HmR0OpsVmx =
171	{
172	/* .pfnEnterSession = */ VMXR0Enter,
173	/* .pfnThreadCtxCallback = */ VMXR0ThreadCtxCallback,
174	/* .pfnAssertionCallback = */ VMXR0AssertionCallback,
175	/* .pfnExportHostState = */ VMXR0ExportHostState,
176	/* .pfnRunGuestCode = */ VMXR0RunGuestCode,
177	/* .pfnEnableCpu = */ VMXR0EnableCpu,
178	/* .pfnDisableCpu = */ VMXR0DisableCpu,
179	/* .pfnInitVM = */ VMXR0InitVM,
180	/* .pfnTermVM = */ VMXR0TermVM,
181	/* .pfnSetupVM = */ VMXR0SetupVM,
182	};
183
184	/** HM ring-0 operations for AMD-V. */
185	static HMR0VTABLE const g_HmR0OpsSvm =
186	{
187	/* .pfnEnterSession = */ SVMR0Enter,
188	/* .pfnThreadCtxCallback = */ SVMR0ThreadCtxCallback,
189	/* .pfnAssertionCallback = */ SVMR0AssertionCallback,
190	/* .pfnExportHostState = */ SVMR0ExportHostState,
191	/* .pfnRunGuestCode = */ SVMR0RunGuestCode,
192	/* .pfnEnableCpu = */ SVMR0EnableCpu,
193	/* .pfnDisableCpu = */ SVMR0DisableCpu,
194	/* .pfnInitVM = */ SVMR0InitVM,
195	/* .pfnTermVM = */ SVMR0TermVM,
196	/* .pfnSetupVM = */ SVMR0SetupVM,
197	};
198
199
200	/** @name Dummy callback handlers for when neither VT-x nor AMD-V is supported.
201	* @{ */
202
203	static DECLCALLBACK(int) hmR0DummyEnter(PVMCPUCC pVCpu)
204	{
205	RT_NOREF(pVCpu);
206	return VINF_SUCCESS;
207	}
208
209	static DECLCALLBACK(void) hmR0DummyThreadCtxCallback(RTTHREADCTXEVENT enmEvent, PVMCPUCC pVCpu, bool fGlobalInit)
210	{
211	RT_NOREF(enmEvent, pVCpu, fGlobalInit);
212	}
213
214	static DECLCALLBACK(int) hmR0DummyEnableCpu(PHMPHYSCPU pHostCpu, PVMCC pVM, void *pvCpuPage, RTHCPHYS HCPhysCpuPage,
215	bool fEnabledBySystem, PCSUPHWVIRTMSRS pHwvirtMsrs)
216	{
217	RT_NOREF(pHostCpu, pVM, pvCpuPage, HCPhysCpuPage, fEnabledBySystem, pHwvirtMsrs);
218	return VINF_SUCCESS;
219	}
220
221	static DECLCALLBACK(int) hmR0DummyDisableCpu(PHMPHYSCPU pHostCpu, void *pvCpuPage, RTHCPHYS HCPhysCpuPage)
222	{
223	RT_NOREF(pHostCpu, pvCpuPage, HCPhysCpuPage);
224	return VINF_SUCCESS;
225	}
226
227	static DECLCALLBACK(int) hmR0DummyInitVM(PVMCC pVM)
228	{
229	RT_NOREF(pVM);
230	return VINF_SUCCESS;
231	}
232
233	static DECLCALLBACK(int) hmR0DummyTermVM(PVMCC pVM)
234	{
235	RT_NOREF(pVM);
236	return VINF_SUCCESS;
237	}
238
239	static DECLCALLBACK(int) hmR0DummySetupVM(PVMCC pVM)
240	{
241	RT_NOREF(pVM);
242	return VINF_SUCCESS;
243	}
244
245	static DECLCALLBACK(int) hmR0DummyAssertionCallback(PVMCPUCC pVCpu)
246	{
247	RT_NOREF(pVCpu);
248	return VINF_SUCCESS;
249	}
250
251	static DECLCALLBACK(VBOXSTRICTRC) hmR0DummyRunGuestCode(PVMCPUCC pVCpu)
252	{
253	RT_NOREF(pVCpu);
254	return VERR_NOT_SUPPORTED;
255	}
256
257	static DECLCALLBACK(int) hmR0DummyExportHostState(PVMCPUCC pVCpu)
258	{
259	RT_NOREF(pVCpu);
260	return VINF_SUCCESS;
261	}
262
263	/** Dummy ops. */
264	static HMR0VTABLE const g_HmR0OpsDummy =
265	{
266	/* .pfnEnterSession = */ hmR0DummyEnter,
267	/* .pfnThreadCtxCallback = */ hmR0DummyThreadCtxCallback,
268	/* .pfnAssertionCallback = */ hmR0DummyAssertionCallback,
269	/* .pfnExportHostState = */ hmR0DummyExportHostState,
270	/* .pfnRunGuestCode = */ hmR0DummyRunGuestCode,
271	/* .pfnEnableCpu = */ hmR0DummyEnableCpu,
272	/* .pfnDisableCpu = */ hmR0DummyDisableCpu,
273	/* .pfnInitVM = */ hmR0DummyInitVM,
274	/* .pfnTermVM = */ hmR0DummyTermVM,
275	/* .pfnSetupVM = */ hmR0DummySetupVM,
276	};
277
278	/** @} */
279
280
281	/**
282	* Initializes a first return code structure.
283	*
284	* @param pFirstRc The structure to init.
285	*/
286	static void hmR0FirstRcInit(PHMR0FIRSTRC pFirstRc)
287	{
288	pFirstRc->rc = VINF_SUCCESS;
289	pFirstRc->idCpu = NIL_RTCPUID;
290	}
291
292
293	/**
294	* Try set the status code (success ignored).
295	*
296	* @param pFirstRc The first return code structure.
297	* @param rc The status code.
298	*/
299	static void hmR0FirstRcSetStatus(PHMR0FIRSTRC pFirstRc, int rc)
300	{
301	if ( RT_FAILURE(rc)
302	&& ASMAtomicCmpXchgS32(&pFirstRc->rc, rc, VINF_SUCCESS))
303	pFirstRc->idCpu = RTMpCpuId();
304	}
305
306
307	/**
308	* Get the status code of a first return code structure.
309	*
310	* @returns The status code; VINF_SUCCESS or error status, no informational or
311	* warning errors.
312	* @param pFirstRc The first return code structure.
313	*/
314	static int hmR0FirstRcGetStatus(PHMR0FIRSTRC pFirstRc)
315	{
316	return pFirstRc->rc;
317	}
318
319
320	#ifdef VBOX_STRICT
321	# ifndef DEBUG_bird
322	/**
323	* Get the CPU ID on which the failure status code was reported.
324	*
325	* @returns The CPU ID, NIL_RTCPUID if no failure was reported.
326	* @param pFirstRc The first return code structure.
327	*/
328	static RTCPUID hmR0FirstRcGetCpuId(PHMR0FIRSTRC pFirstRc)
329	{
330	return pFirstRc->idCpu;
331	}
332	# endif
333	#endif /* VBOX_STRICT */
334
335
336	/**
337	* Verify if VMX is really usable by entering and exiting VMX root mode.
338	*
339	* @returns VBox status code.
340	* @param uVmxBasicMsr The host's IA32_VMX_BASIC_MSR value.
341	*/
342	static int hmR0InitIntelVerifyVmxUsability(uint64_t uVmxBasicMsr)
343	{
344	/* Allocate a temporary VMXON region. */
345	RTR0MEMOBJ hScatchMemObj;
346	int rc = RTR0MemObjAllocCont(&hScatchMemObj, HOST_PAGE_SIZE, NIL_RTHCPHYS /* PhysHighest /, false / fExecutable */);
347	if (RT_FAILURE(rc))
348	{
349	LogRelFunc(("RTR0MemObjAllocCont(,HOST_PAGE_SIZE,false) -> %Rrc\n", rc));
350	return rc;
351	}
352	void *pvScatchPage = RTR0MemObjAddress(hScatchMemObj);
353	RTHCPHYS const HCPhysScratchPage = RTR0MemObjGetPagePhysAddr(hScatchMemObj, 0);
354	RT_BZERO(pvScatchPage, HOST_PAGE_SIZE);
355
356	/* Set revision dword at the beginning of the VMXON structure. */
357	(uint32_t )pvScatchPage = RT_BF_GET(uVmxBasicMsr, VMX_BF_BASIC_VMCS_ID);
358
359	/* Make sure we don't get rescheduled to another CPU during this probe. */
360	RTCCUINTREG const fEFlags = ASMIntDisableFlags();
361
362	/* Enable CR4.VMXE if it isn't already set. */
363	RTCCUINTREG const uOldCr4 = SUPR0ChangeCR4(X86_CR4_VMXE, RTCCUINTREG_MAX);
364
365	/*
366	* The only way of checking if we're in VMX root mode is to try and enter it.
367	* There is no instruction or control bit that tells us if we're in VMX root mode.
368	* Therefore, try and enter and exit VMX root mode.
369	*/
370	rc = VMXEnable(HCPhysScratchPage);
371	if (RT_SUCCESS(rc))
372	VMXDisable();
373	else
374	{
375	/*
376	* KVM leaves the CPU in VMX root mode. Not only is this not allowed,
377	* it will crash the host when we enter raw mode, because:
378	*
379	* (a) clearing X86_CR4_VMXE in CR4 causes a #GP (we no longer modify
380	* this bit), and
381	* (b) turning off paging causes a #GP (unavoidable when switching
382	* from long to 32 bits mode or 32 bits to PAE).
383	*
384	* They should fix their code, but until they do we simply refuse to run.
385	*/
386	rc = VERR_VMX_IN_VMX_ROOT_MODE;
387	}
388
389	/* Restore CR4.VMXE if it wasn't set prior to us setting it above. */
390	if (!(uOldCr4 & X86_CR4_VMXE))
391	SUPR0ChangeCR4(0 /* fOrMask */, ~(uint64_t)X86_CR4_VMXE);
392
393	/* Restore interrupts. */
394	ASMSetFlags(fEFlags);
395
396	RTR0MemObjFree(hScatchMemObj, false);
397
398	return rc;
399	}
400
401
402	/**
403	* Worker function used by hmR0PowerCallback() and HMR0Init() to initalize VT-x
404	* on a CPU.
405	*
406	* @param idCpu The identifier for the CPU the function is called on.
407	* @param pvUser1 Pointer to the first RC structure.
408	* @param pvUser2 Ignored.
409	*/
410	static DECLCALLBACK(void) hmR0InitIntelCpu(RTCPUID idCpu, void pvUser1, void pvUser2)
411	{
412	PHMR0FIRSTRC pFirstRc = (PHMR0FIRSTRC)pvUser1;
413	Assert(!RTThreadPreemptIsEnabled(NIL_RTTHREAD));
414	Assert(idCpu == (RTCPUID)RTMpCpuIdToSetIndex(idCpu)); /** @todo fix idCpu == index assumption (rainy day) */
415	NOREF(idCpu); NOREF(pvUser2);
416
417	int rc = SUPR0GetVmxUsability(NULL /* pfIsSmxModeAmbiguous */);
418	hmR0FirstRcSetStatus(pFirstRc, rc);
419	}
420
421
422	/**
423	* Intel specific initialization code.
424	*
425	* @returns VBox status code (will only fail if out of memory).
426	*/
427	static int hmR0InitIntel(void)
428	{
429	/* Read this MSR now as it may be useful for error reporting when initializing VT-x fails. */
430	g_HmMsrs.u.vmx.u64FeatCtrl = ASMRdMsr(MSR_IA32_FEATURE_CONTROL);
431
432	/*
433	* First try use native kernel API for controlling VT-x.
434	* (This is only supported by some Mac OS X kernels atm.)
435	*/
436	int rc;
437	g_rcHmInit = rc = SUPR0EnableVTx(true /* fEnable */);
438	g_fHmVmxUsingSUPR0EnableVTx = rc != VERR_NOT_SUPPORTED;
439	if (g_fHmVmxUsingSUPR0EnableVTx)
440	{
441	AssertLogRelMsg(rc == VINF_SUCCESS \|\| rc == VERR_VMX_IN_VMX_ROOT_MODE \|\| rc == VERR_VMX_NO_VMX, ("%Rrc\n", rc));
442	if (RT_SUCCESS(rc))
443	{
444	g_fHmVmxSupported = true;
445	rc = SUPR0EnableVTx(false /* fEnable */);
446	AssertLogRelRC(rc);
447	rc = VINF_SUCCESS;
448	}
449	}
450	else
451	{
452	HMR0FIRSTRC FirstRc;
453	hmR0FirstRcInit(&FirstRc);
454	g_rcHmInit = rc = RTMpOnAll(hmR0InitIntelCpu, &FirstRc, NULL);
455	if (RT_SUCCESS(rc))
456	g_rcHmInit = rc = hmR0FirstRcGetStatus(&FirstRc);
457	}
458
459	if (RT_SUCCESS(rc))
460	{
461	/* Read CR4 and EFER for logging/diagnostic purposes. */
462	g_uHmVmxHostCr4 = ASMGetCR4();
463	g_uHmVmxHostMsrEfer = ASMRdMsr(MSR_K6_EFER);
464
465	/* Get VMX MSRs (and feature control MSR) for determining VMX features we can ultimately use. */
466	SUPR0GetHwvirtMsrs(&g_HmMsrs, SUPVTCAPS_VT_X, false /* fForce */);
467
468	/*
469	* Nested KVM workaround: Intel SDM section 34.15.5 describes that
470	* MSR_IA32_SMM_MONITOR_CTL depends on bit 49 of MSR_IA32_VMX_BASIC while
471	* table 35-2 says that this MSR is available if either VMX or SMX is supported.
472	*/
473	uint64_t const uVmxBasicMsr = g_HmMsrs.u.vmx.u64Basic;
474	if (RT_BF_GET(uVmxBasicMsr, VMX_BF_BASIC_DUAL_MON))
475	g_uHmVmxHostSmmMonitorCtl = ASMRdMsr(MSR_IA32_SMM_MONITOR_CTL);
476
477	/* Initialize VPID - 16 bits ASID. */
478	g_uHmMaxAsid = 0x10000; /* exclusive */
479
480	/*
481	* If the host OS has not enabled VT-x for us, try enter VMX root mode
482	* to really verify if VT-x is usable.
483	*/
484	if (!g_fHmVmxUsingSUPR0EnableVTx)
485	{
486	/*
487	* We don't verify VMX root mode on all CPUs here because the verify
488	* function exits VMX root mode thus potentially allowing other
489	* programs to grab VT-x. Our global init's entering and staying in
490	* VMX root mode (until our module termination) is done later when
491	* the first VM powers up (after module initialization) using
492	* VMMR0_DO_HM_ENABLE which calls HMR0EnableAllCpus().
493	*
494	* This is just a quick sanity check.
495	*/
496	rc = hmR0InitIntelVerifyVmxUsability(uVmxBasicMsr);
497	if (RT_SUCCESS(rc))
498	g_fHmVmxSupported = true;
499	else
500	{
501	g_rcHmInit = rc;
502	Assert(g_fHmVmxSupported == false);
503	}
504	}
505
506	if (g_fHmVmxSupported)
507	{
508	rc = VMXR0GlobalInit();
509	if (RT_SUCCESS(rc))
510	{
511	/*
512	* Install the VT-x methods.
513	*/
514	g_HmR0Ops = g_HmR0OpsVmx;
515
516	/*
517	* Check for the VMX-Preemption Timer and adjust for the "VMX-Preemption
518	* Timer Does Not Count Down at the Rate Specified" CPU erratum.
519	*/
520	if (g_HmMsrs.u.vmx.PinCtls.n.allowed1 & VMX_PIN_CTLS_PREEMPT_TIMER)
521	{
522	g_fHmVmxUsePreemptTimer = true;
523	g_cHmVmxPreemptTimerShift = RT_BF_GET(g_HmMsrs.u.vmx.u64Misc, VMX_BF_MISC_PREEMPT_TIMER_TSC);
524	if (HMIsSubjectToVmxPreemptTimerErratum())
525	g_cHmVmxPreemptTimerShift = 0; /* This is about right most of the time here. */
526	}
527	else
528	g_fHmVmxUsePreemptTimer = false;
529
530	/*
531	* Check for EFER swapping support.
532	*/
533	g_fHmVmxSupportsVmcsEfer = (g_HmMsrs.u.vmx.EntryCtls.n.allowed1 & VMX_ENTRY_CTLS_LOAD_EFER_MSR)
534	&& (g_HmMsrs.u.vmx.ExitCtls.n.allowed1 & VMX_EXIT_CTLS_LOAD_EFER_MSR)
535	&& (g_HmMsrs.u.vmx.ExitCtls.n.allowed1 & VMX_EXIT_CTLS_SAVE_EFER_MSR);
536	}
537	else
538	{
539	g_rcHmInit = rc;
540	g_fHmVmxSupported = false;
541	}
542	}
543	}
544	#ifdef LOG_ENABLED
545	else
546	SUPR0Printf("hmR0InitIntelCpu failed with rc=%Rrc\n", g_rcHmInit);
547	#endif
548	return VINF_SUCCESS;
549	}
550
551
552	/**
553	* Worker function used by hmR0PowerCallback() and HMR0Init() to initalize AMD-V
554	* on a CPU.
555	*
556	* @param idCpu The identifier for the CPU the function is called on.
557	* @param pvUser1 Pointer to the first RC structure.
558	* @param pvUser2 Ignored.
559	*/
560	static DECLCALLBACK(void) hmR0InitAmdCpu(RTCPUID idCpu, void pvUser1, void pvUser2)
561	{
562	PHMR0FIRSTRC pFirstRc = (PHMR0FIRSTRC)pvUser1;
563	Assert(!RTThreadPreemptIsEnabled(NIL_RTTHREAD));
564	Assert(idCpu == (RTCPUID)RTMpCpuIdToSetIndex(idCpu)); /** @todo fix idCpu == index assumption (rainy day) */
565	NOREF(idCpu); NOREF(pvUser2);
566
567	int rc = SUPR0GetSvmUsability(true /* fInitSvm */);
568	hmR0FirstRcSetStatus(pFirstRc, rc);
569	}
570
571
572	/**
573	* AMD-specific initialization code.
574	*
575	* @returns VBox status code (will only fail if out of memory).
576	*/
577	static int hmR0InitAmd(void)
578	{
579	/* Call the global AMD-V initialization routine (should only fail in out-of-memory situations). */
580	int rc = SVMR0GlobalInit();
581	if (RT_SUCCESS(rc))
582	{
583	/*
584	* Install the AMD-V methods.
585	*/
586	g_HmR0Ops = g_HmR0OpsSvm;
587
588	/* Query AMD features. */
589	uint32_t u32Dummy;
590	ASMCpuId(0x8000000a, &g_uHmSvmRev, &g_uHmMaxAsid, &u32Dummy, &g_fHmSvmFeatures);
591
592	/*
593	* We need to check if AMD-V has been properly initialized on all CPUs.
594	* Some BIOSes might do a poor job.
595	*/
596	HMR0FIRSTRC FirstRc;
597	hmR0FirstRcInit(&FirstRc);
598	rc = RTMpOnAll(hmR0InitAmdCpu, &FirstRc, NULL);
599	AssertRC(rc);
600	if (RT_SUCCESS(rc))
601	rc = hmR0FirstRcGetStatus(&FirstRc);
602	#ifndef DEBUG_bird
603	AssertMsg(rc == VINF_SUCCESS \|\| rc == VERR_SVM_IN_USE,
604	("hmR0InitAmdCpu failed for cpu %d with rc=%Rrc\n", hmR0FirstRcGetCpuId(&FirstRc), rc));
605	#endif
606	if (RT_SUCCESS(rc))
607	{
608	SUPR0GetHwvirtMsrs(&g_HmMsrs, SUPVTCAPS_AMD_V, false /* fForce */);
609	g_fHmSvmSupported = true;
610	}
611	else
612	{
613	g_rcHmInit = rc;
614	if (rc == VERR_SVM_DISABLED \|\| rc == VERR_SVM_IN_USE)
615	rc = VINF_SUCCESS; /* Don't fail if AMD-V is disabled or in use. */
616	}
617	}
618	else
619	g_rcHmInit = rc;
620	return rc;
621	}
622
623
624	/**
625	* Does global Ring-0 HM initialization (at module init).
626	*
627	* @returns VBox status code.
628	*/
629	VMMR0_INT_DECL(int) HMR0Init(void)
630	{
631	/*
632	* Initialize the globals.
633	*/
634	g_fHmEnabled = false;
635	for (unsigned i = 0; i < RT_ELEMENTS(g_aHmCpuInfo); i++)
636	{
637	g_aHmCpuInfo[i].idCpu = NIL_RTCPUID;
638	g_aHmCpuInfo[i].hMemObj = NIL_RTR0MEMOBJ;
639	g_aHmCpuInfo[i].HCPhysMemObj = NIL_RTHCPHYS;
640	g_aHmCpuInfo[i].pvMemObj = NULL;
641	#ifdef VBOX_WITH_NESTED_HWVIRT_SVM
642	g_aHmCpuInfo[i].n.svm.hNstGstMsrpm = NIL_RTR0MEMOBJ;
643	g_aHmCpuInfo[i].n.svm.HCPhysNstGstMsrpm = NIL_RTHCPHYS;
644	g_aHmCpuInfo[i].n.svm.pvNstGstMsrpm = NULL;
645	#endif
646	}
647
648	/* Fill in all callbacks with placeholders. */
649	g_HmR0Ops = g_HmR0OpsDummy;
650
651	/* Default is global VT-x/AMD-V init. */
652	g_fHmGlobalInit = true;
653
654	g_fHmVmxSupported = false;
655	g_fHmSvmSupported = false;
656	g_uHmMaxAsid = 0;
657
658	/*
659	* Get host kernel features that HM might need to know in order
660	* to co-operate and function properly with the host OS (e.g. SMAP).
661	*/
662	g_fHmHostKernelFeatures = SUPR0GetKernelFeatures();
663
664	/*
665	* Make sure aCpuInfo is big enough for all the CPUs on this system.
666	*/
667	if (RTMpGetArraySize() > RT_ELEMENTS(g_aHmCpuInfo))
668	{
669	LogRel(("HM: Too many real CPUs/cores/threads - %u, max %u\n", RTMpGetArraySize(), RT_ELEMENTS(g_aHmCpuInfo)));
670	return VERR_TOO_MANY_CPUS;
671	}
672
673	/*
674	* Check for VT-x or AMD-V support.
675	* Return failure only in out-of-memory situations.
676	*/
677	uint32_t fCaps = 0;
678	int rc = SUPR0GetVTSupport(&fCaps);
679	if (RT_SUCCESS(rc))
680	{
681	if (fCaps & SUPVTCAPS_VT_X)
682	rc = hmR0InitIntel();
683	else
684	{
685	Assert(fCaps & SUPVTCAPS_AMD_V);
686	rc = hmR0InitAmd();
687	}
688	if (RT_SUCCESS(rc))
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_fHmVmxUsingSUPR0EnableVTx)
695	{
696	rc = RTMpNotificationRegister(hmR0MpEventCallback, NULL);
697	if (RT_SUCCESS(rc))
698	{
699	rc = RTPowerNotificationRegister(hmR0PowerCallback, NULL);
700	if (RT_FAILURE(rc))
701	RTMpNotificationDeregister(hmR0MpEventCallback, NULL);
702	}
703	if (RT_FAILURE(rc))
704	{
705	/* There shouldn't be any per-cpu allocations at this point,
706	so just have to call SVMR0GlobalTerm and VMXR0GlobalTerm. */
707	if (fCaps & SUPVTCAPS_VT_X)
708	VMXR0GlobalTerm();
709	else
710	SVMR0GlobalTerm();
711	g_HmR0Ops = g_HmR0OpsDummy;
712	g_rcHmInit = rc;
713	g_fHmSvmSupported = false;
714	g_fHmVmxSupported = false;
715	}
716	}
717	}
718	}
719	else
720	{
721	g_rcHmInit = rc;
722	rc = VINF_SUCCESS; /* We return success here because module init shall not fail if HM fails to initialize. */
723	}
724	return rc;
725	}
726
727
728	/**
729	* Does global Ring-0 HM termination (at module termination).
730	*
731	* @returns VBox status code (ignored).
732	*/
733	VMMR0_INT_DECL(int) HMR0Term(void)
734	{
735	int rc;
736	if ( g_fHmVmxSupported
737	&& g_fHmVmxUsingSUPR0EnableVTx)
738	{
739	/*
740	* Simple if the host OS manages VT-x.
741	*/
742	Assert(g_fHmGlobalInit);
743
744	if (g_fHmVmxCalledSUPR0EnableVTx)
745	{
746	rc = SUPR0EnableVTx(false /* fEnable */);
747	g_fHmVmxCalledSUPR0EnableVTx = false;
748	}
749	else
750	rc = VINF_SUCCESS;
751
752	for (unsigned iCpu = 0; iCpu < RT_ELEMENTS(g_aHmCpuInfo); iCpu++)
753	{
754	g_aHmCpuInfo[iCpu].fConfigured = false;
755	Assert(g_aHmCpuInfo[iCpu].hMemObj == NIL_RTR0MEMOBJ);
756	}
757	}
758	else
759	{
760	Assert(!g_fHmVmxSupported \|\| !g_fHmVmxUsingSUPR0EnableVTx);
761
762	/* Doesn't really matter if this fails. */
763	RTMpNotificationDeregister(hmR0MpEventCallback, NULL);
764	RTPowerNotificationDeregister(hmR0PowerCallback, NULL);
765	rc = VINF_SUCCESS;
766
767	/*
768	* Disable VT-x/AMD-V on all CPUs if we enabled it before.
769	*/
770	if (g_fHmGlobalInit)
771	{
772	HMR0FIRSTRC FirstRc;
773	hmR0FirstRcInit(&FirstRc);
774	rc = RTMpOnAll(hmR0DisableCpuCallback, NULL /* pvUser 1 */, &FirstRc);
775	Assert(RT_SUCCESS(rc) \|\| rc == VERR_NOT_SUPPORTED);
776	if (RT_SUCCESS(rc))
777	rc = hmR0FirstRcGetStatus(&FirstRc);
778	}
779
780	/*
781	* Free the per-cpu pages used for VT-x and AMD-V.
782	*/
783	for (unsigned i = 0; i < RT_ELEMENTS(g_aHmCpuInfo); i++)
784	{
785	if (g_aHmCpuInfo[i].hMemObj != NIL_RTR0MEMOBJ)
786	{
787	RTR0MemObjFree(g_aHmCpuInfo[i].hMemObj, false);
788	g_aHmCpuInfo[i].hMemObj = NIL_RTR0MEMOBJ;
789	g_aHmCpuInfo[i].HCPhysMemObj = NIL_RTHCPHYS;
790	g_aHmCpuInfo[i].pvMemObj = NULL;
791	}
792	#ifdef VBOX_WITH_NESTED_HWVIRT_SVM
793	if (g_aHmCpuInfo[i].n.svm.hNstGstMsrpm != NIL_RTR0MEMOBJ)
794	{
795	RTR0MemObjFree(g_aHmCpuInfo[i].n.svm.hNstGstMsrpm, false);
796	g_aHmCpuInfo[i].n.svm.hNstGstMsrpm = NIL_RTR0MEMOBJ;
797	g_aHmCpuInfo[i].n.svm.HCPhysNstGstMsrpm = NIL_RTHCPHYS;
798	g_aHmCpuInfo[i].n.svm.pvNstGstMsrpm = NULL;
799	}
800	#endif
801	}
802	}
803
804	/** @todo This needs cleaning up. There's no matching
805	* hmR0TermIntel()/hmR0TermAmd() and all the VT-x/AMD-V specific bits
806	* should move into their respective modules. */
807	/* Finally, call global VT-x/AMD-V termination. */
808	if (g_fHmVmxSupported)
809	VMXR0GlobalTerm();
810	else if (g_fHmSvmSupported)
811	SVMR0GlobalTerm();
812
813	return rc;
814	}
815
816
817	/**
818	* Enable VT-x or AMD-V on the current CPU
819	*
820	* @returns VBox status code.
821	* @param pVM The cross context VM structure. Can be NULL.
822	* @param idCpu The identifier for the CPU the function is called on.
823	*
824	* @remarks Maybe called with interrupts disabled!
825	*/
826	static int hmR0EnableCpu(PVMCC pVM, RTCPUID idCpu)
827	{
828	PHMPHYSCPU pHostCpu = &g_aHmCpuInfo[idCpu];
829
830	Assert(idCpu == (RTCPUID)RTMpCpuIdToSetIndex(idCpu)); /** @todo fix idCpu == index assumption (rainy day) */
831	Assert(idCpu < RT_ELEMENTS(g_aHmCpuInfo));
832	Assert(!pHostCpu->fConfigured);
833	Assert(!RTThreadPreemptIsEnabled(NIL_RTTHREAD));
834
835	pHostCpu->idCpu = idCpu;
836	/* Do NOT reset cTlbFlushes here, see @bugref{6255}. */
837
838	int rc;
839	if ( g_fHmVmxSupported
840	&& g_fHmVmxUsingSUPR0EnableVTx)
841	rc = g_HmR0Ops.pfnEnableCpu(pHostCpu, pVM, NULL /* pvCpuPage */, NIL_RTHCPHYS, true, &g_HmMsrs);
842	else
843	{
844	AssertLogRelMsgReturn(pHostCpu->hMemObj != NIL_RTR0MEMOBJ, ("hmR0EnableCpu failed idCpu=%u.\n", idCpu), VERR_HM_IPE_1);
845	rc = g_HmR0Ops.pfnEnableCpu(pHostCpu, pVM, pHostCpu->pvMemObj, pHostCpu->HCPhysMemObj, false, &g_HmMsrs);
846	}
847	if (RT_SUCCESS(rc))
848	pHostCpu->fConfigured = true;
849	return rc;
850	}
851
852
853	/**
854	* Worker function passed to RTMpOnAll() that is to be called on all CPUs.
855	*
856	* @param idCpu The identifier for the CPU the function is called on.
857	* @param pvUser1 Opaque pointer to the VM (can be NULL!).
858	* @param pvUser2 The 2nd user argument.
859	*/
860	static DECLCALLBACK(void) hmR0EnableCpuCallback(RTCPUID idCpu, void pvUser1, void pvUser2)
861	{
862	PVMCC pVM = (PVMCC)pvUser1; /* can be NULL! */
863	PHMR0FIRSTRC pFirstRc = (PHMR0FIRSTRC)pvUser2;
864	AssertReturnVoid(g_fHmGlobalInit);
865	Assert(!RTThreadPreemptIsEnabled(NIL_RTTHREAD));
866	hmR0FirstRcSetStatus(pFirstRc, hmR0EnableCpu(pVM, idCpu));
867	}
868
869
870	/**
871	* RTOnce callback employed by HMR0EnableAllCpus.
872	*
873	* @returns VBox status code.
874	* @param pvUser Pointer to the VM.
875	*/
876	static DECLCALLBACK(int32_t) hmR0EnableAllCpuOnce(void *pvUser)
877	{
878	PVMCC pVM = (PVMCC)pvUser;
879
880	/*
881	* Indicate that we've initialized.
882	*
883	* Note! There is a potential race between this function and the suspend
884	* notification. Kind of unlikely though, so ignored for now.
885	*/
886	AssertReturn(!g_fHmEnabled, VERR_HM_ALREADY_ENABLED_IPE);
887	ASMAtomicWriteBool(&g_fHmEnabled, true);
888
889	/*
890	* The global init variable is set by the first VM.
891	*/
892	g_fHmGlobalInit = pVM->hm.s.fGlobalInit;
893
894	#ifdef VBOX_STRICT
895	for (unsigned i = 0; i < RT_ELEMENTS(g_aHmCpuInfo); i++)
896	{
897	Assert(g_aHmCpuInfo[i].hMemObj == NIL_RTR0MEMOBJ);
898	Assert(g_aHmCpuInfo[i].HCPhysMemObj == NIL_RTHCPHYS);
899	Assert(g_aHmCpuInfo[i].pvMemObj == NULL);
900	Assert(!g_aHmCpuInfo[i].fConfigured);
901	Assert(!g_aHmCpuInfo[i].cTlbFlushes);
902	Assert(!g_aHmCpuInfo[i].uCurrentAsid);
903	# ifdef VBOX_WITH_NESTED_HWVIRT_SVM
904	Assert(g_aHmCpuInfo[i].n.svm.hNstGstMsrpm == NIL_RTR0MEMOBJ);
905	Assert(g_aHmCpuInfo[i].n.svm.HCPhysNstGstMsrpm == NIL_RTHCPHYS);
906	Assert(g_aHmCpuInfo[i].n.svm.pvNstGstMsrpm == NULL);
907	# endif
908	}
909	#endif
910
911	int rc;
912	if ( g_fHmVmxSupported
913	&& g_fHmVmxUsingSUPR0EnableVTx)
914	{
915	/*
916	* Global VT-x initialization API (only darwin for now).
917	*/
918	rc = SUPR0EnableVTx(true /* fEnable */);
919	if (RT_SUCCESS(rc))
920	{
921	g_fHmVmxCalledSUPR0EnableVTx = true;
922	/* If the host provides a VT-x init API, then we'll rely on that for global init. */
923	g_fHmGlobalInit = pVM->hm.s.fGlobalInit = true;
924	}
925	else
926	AssertMsgFailed(("hmR0EnableAllCpuOnce/SUPR0EnableVTx: rc=%Rrc\n", rc));
927	}
928	else
929	{
930	/*
931	* We're doing the job ourselves.
932	*/
933	/* Allocate one page per cpu for the global VT-x and AMD-V pages */
934	for (unsigned i = 0; i < RT_ELEMENTS(g_aHmCpuInfo); i++)
935	{
936	Assert(g_aHmCpuInfo[i].hMemObj == NIL_RTR0MEMOBJ);
937	#ifdef VBOX_WITH_NESTED_HWVIRT_SVM
938	Assert(g_aHmCpuInfo[i].n.svm.hNstGstMsrpm == NIL_RTR0MEMOBJ);
939	#endif
940	if (RTMpIsCpuPossible(RTMpCpuIdFromSetIndex(i)))
941	{
942	/** @todo NUMA */
943	rc = RTR0MemObjAllocCont(&g_aHmCpuInfo[i].hMemObj, HOST_PAGE_SIZE, NIL_RTHCPHYS /PhysHighest/, false /* executable R0 mapping */);
944	AssertLogRelRCReturn(rc, rc);
945
946	g_aHmCpuInfo[i].HCPhysMemObj = RTR0MemObjGetPagePhysAddr(g_aHmCpuInfo[i].hMemObj, 0);
947	Assert(g_aHmCpuInfo[i].HCPhysMemObj != NIL_RTHCPHYS);
948	Assert(!(g_aHmCpuInfo[i].HCPhysMemObj & HOST_PAGE_OFFSET_MASK));
949
950	g_aHmCpuInfo[i].pvMemObj = RTR0MemObjAddress(g_aHmCpuInfo[i].hMemObj);
951	AssertPtr(g_aHmCpuInfo[i].pvMemObj);
952	RT_BZERO(g_aHmCpuInfo[i].pvMemObj, HOST_PAGE_SIZE);
953
954	#ifdef VBOX_WITH_NESTED_HWVIRT_SVM
955	rc = RTR0MemObjAllocCont(&g_aHmCpuInfo[i].n.svm.hNstGstMsrpm, SVM_MSRPM_PAGES << X86_PAGE_4K_SHIFT,
956	NIL_RTHCPHYS /PhysHighest/, false /* executable R0 mapping */);
957	AssertLogRelRCReturn(rc, rc);
958
959	g_aHmCpuInfo[i].n.svm.HCPhysNstGstMsrpm = RTR0MemObjGetPagePhysAddr(g_aHmCpuInfo[i].n.svm.hNstGstMsrpm, 0);
960	Assert(g_aHmCpuInfo[i].n.svm.HCPhysNstGstMsrpm != NIL_RTHCPHYS);
961	Assert(!(g_aHmCpuInfo[i].n.svm.HCPhysNstGstMsrpm & HOST_PAGE_OFFSET_MASK));
962
963	g_aHmCpuInfo[i].n.svm.pvNstGstMsrpm = RTR0MemObjAddress(g_aHmCpuInfo[i].n.svm.hNstGstMsrpm);
964	AssertPtr(g_aHmCpuInfo[i].n.svm.pvNstGstMsrpm);
965	ASMMemFill32(g_aHmCpuInfo[i].n.svm.pvNstGstMsrpm, SVM_MSRPM_PAGES << X86_PAGE_4K_SHIFT, UINT32_C(0xffffffff));
966	#endif
967	}
968	}
969
970	rc = VINF_SUCCESS;
971	}
972
973	if ( RT_SUCCESS(rc)
974	&& g_fHmGlobalInit)
975	{
976	/*
977	* It's possible we end up here with VMX (and perhaps SVM) not supported, see @bugref{9918}.
978	* In that case, our HMR0 function table contains the dummy placeholder functions which pretend
979	* success. However, we must not pretend success any longer (like we did during HMR0Init called
980	* during VMMR0 module init) as the HM init error code (g_rcHmInit) should be propagated to
981	* ring-3 especially since we now have a VM instance.
982	*/
983	if ( !g_fHmVmxSupported
984	&& !g_fHmSvmSupported)
985	{
986	Assert(g_HmR0Ops.pfnEnableCpu == hmR0DummyEnableCpu);
987	Assert(RT_FAILURE(g_rcHmInit));
988	rc = g_rcHmInit;
989	}
990	else
991	{
992	/* First time, so initialize each cpu/core. */
993	HMR0FIRSTRC FirstRc;
994	hmR0FirstRcInit(&FirstRc);
995	Assert(g_HmR0Ops.pfnEnableCpu != hmR0DummyEnableCpu);
996	rc = RTMpOnAll(hmR0EnableCpuCallback, (void *)pVM, &FirstRc);
997	if (RT_SUCCESS(rc))
998	rc = hmR0FirstRcGetStatus(&FirstRc);
999	}
1000	}
1001
1002	return rc;
1003	}
1004
1005
1006	/**
1007	* Sets up HM on all cpus.
1008	*
1009	* @returns VBox status code.
1010	* @param pVM The cross context VM structure.
1011	*/
1012	VMMR0_INT_DECL(int) HMR0EnableAllCpus(PVMCC pVM)
1013	{
1014	/* Make sure we don't touch HM after we've disabled HM in preparation of a suspend. */
1015	if (ASMAtomicReadBool(&g_fHmSuspended))
1016	return VERR_HM_SUSPEND_PENDING;
1017
1018	return RTOnce(&g_HmEnableAllCpusOnce, hmR0EnableAllCpuOnce, pVM);
1019	}
1020
1021
1022	/**
1023	* Disable VT-x or AMD-V on the current CPU.
1024	*
1025	* @returns VBox status code.
1026	* @param idCpu The identifier for the CPU this function is called on.
1027	*
1028	* @remarks Must be called with preemption disabled.
1029	*/
1030	static int hmR0DisableCpu(RTCPUID idCpu)
1031	{
1032	PHMPHYSCPU pHostCpu = &g_aHmCpuInfo[idCpu];
1033
1034	Assert(!g_fHmVmxSupported \|\| !g_fHmVmxUsingSUPR0EnableVTx);
1035	Assert(!RTThreadPreemptIsEnabled(NIL_RTTHREAD));
1036	Assert(idCpu == (RTCPUID)RTMpCpuIdToSetIndex(idCpu)); /** @todo fix idCpu == index assumption (rainy day) */
1037	Assert(idCpu < RT_ELEMENTS(g_aHmCpuInfo));
1038	Assert(!pHostCpu->fConfigured \|\| pHostCpu->hMemObj != NIL_RTR0MEMOBJ);
1039	AssertRelease(idCpu == RTMpCpuId());
1040
1041	if (pHostCpu->hMemObj == NIL_RTR0MEMOBJ)
1042	return pHostCpu->fConfigured ? VERR_NO_MEMORY : VINF_SUCCESS /* not initialized. */;
1043	AssertPtr(pHostCpu->pvMemObj);
1044	Assert(pHostCpu->HCPhysMemObj != NIL_RTHCPHYS);
1045
1046	int rc;
1047	if (pHostCpu->fConfigured)
1048	{
1049	rc = g_HmR0Ops.pfnDisableCpu(pHostCpu, pHostCpu->pvMemObj, pHostCpu->HCPhysMemObj);
1050	AssertRCReturn(rc, rc);
1051
1052	pHostCpu->fConfigured = false;
1053	pHostCpu->idCpu = NIL_RTCPUID;
1054	}
1055	else
1056	rc = VINF_SUCCESS; /* nothing to do */
1057	return rc;
1058	}
1059
1060
1061	/**
1062	* Worker function passed to RTMpOnAll() that is to be called on the target
1063	* CPUs.
1064	*
1065	* @param idCpu The identifier for the CPU the function is called on.
1066	* @param pvUser1 The 1st user argument.
1067	* @param pvUser2 Opaque pointer to the FirstRc.
1068	*/
1069	static DECLCALLBACK(void) hmR0DisableCpuCallback(RTCPUID idCpu, void pvUser1, void pvUser2)
1070	{
1071	PHMR0FIRSTRC pFirstRc = (PHMR0FIRSTRC)pvUser2; NOREF(pvUser1);
1072	AssertReturnVoid(g_fHmGlobalInit);
1073	hmR0FirstRcSetStatus(pFirstRc, hmR0DisableCpu(idCpu));
1074	}
1075
1076
1077	/**
1078	* Worker function passed to RTMpOnSpecific() that is to be called on the target
1079	* CPU.
1080	*
1081	* @param idCpu The identifier for the CPU the function is called on.
1082	* @param pvUser1 Null, not used.
1083	* @param pvUser2 Null, not used.
1084	*/
1085	static DECLCALLBACK(void) hmR0DisableCpuOnSpecificCallback(RTCPUID idCpu, void pvUser1, void pvUser2)
1086	{
1087	NOREF(pvUser1);
1088	NOREF(pvUser2);
1089	hmR0DisableCpu(idCpu);
1090	}
1091
1092
1093	/**
1094	* Callback function invoked when a cpu goes online or offline.
1095	*
1096	* @param enmEvent The Mp event.
1097	* @param idCpu The identifier for the CPU the function is called on.
1098	* @param pvData Opaque data (PVMCC pointer).
1099	*/
1100	static DECLCALLBACK(void) hmR0MpEventCallback(RTMPEVENT enmEvent, RTCPUID idCpu, void *pvData)
1101	{
1102	NOREF(pvData);
1103	Assert(!g_fHmVmxSupported \|\| !g_fHmVmxUsingSUPR0EnableVTx);
1104
1105	/*
1106	* We only care about uninitializing a CPU that is going offline. When a
1107	* CPU comes online, the initialization is done lazily in HMR0Enter().
1108	*/
1109	switch (enmEvent)
1110	{
1111	case RTMPEVENT_OFFLINE:
1112	{
1113	RTTHREADPREEMPTSTATE PreemptState = RTTHREADPREEMPTSTATE_INITIALIZER;
1114	RTThreadPreemptDisable(&PreemptState);
1115	if (idCpu == RTMpCpuId())
1116	{
1117	int rc = hmR0DisableCpu(idCpu);
1118	AssertRC(rc);
1119	RTThreadPreemptRestore(&PreemptState);
1120	}
1121	else
1122	{
1123	RTThreadPreemptRestore(&PreemptState);
1124	RTMpOnSpecific(idCpu, hmR0DisableCpuOnSpecificCallback, NULL /* pvUser1 /, NULL / pvUser2 */);
1125	}
1126	break;
1127	}
1128
1129	default:
1130	break;
1131	}
1132	}
1133
1134
1135	/**
1136	* Called whenever a system power state change occurs.
1137	*
1138	* @param enmEvent The Power event.
1139	* @param pvUser User argument.
1140	*/
1141	static DECLCALLBACK(void) hmR0PowerCallback(RTPOWEREVENT enmEvent, void *pvUser)
1142	{
1143	NOREF(pvUser);
1144	Assert(!g_fHmVmxSupported \|\| !g_fHmVmxUsingSUPR0EnableVTx);
1145
1146	#ifdef LOG_ENABLED
1147	if (enmEvent == RTPOWEREVENT_SUSPEND)
1148	SUPR0Printf("hmR0PowerCallback RTPOWEREVENT_SUSPEND\n");
1149	else
1150	SUPR0Printf("hmR0PowerCallback RTPOWEREVENT_RESUME\n");
1151	#endif
1152
1153	if (enmEvent == RTPOWEREVENT_SUSPEND)
1154	ASMAtomicWriteBool(&g_fHmSuspended, true);
1155
1156	if (g_fHmEnabled)
1157	{
1158	int rc;
1159	HMR0FIRSTRC FirstRc;
1160	hmR0FirstRcInit(&FirstRc);
1161
1162	if (enmEvent == RTPOWEREVENT_SUSPEND)
1163	{
1164	if (g_fHmGlobalInit)
1165	{
1166	/* Turn off VT-x or AMD-V on all CPUs. */
1167	rc = RTMpOnAll(hmR0DisableCpuCallback, NULL /* pvUser 1 */, &FirstRc);
1168	Assert(RT_SUCCESS(rc) \|\| rc == VERR_NOT_SUPPORTED);
1169	}
1170	/* else nothing to do here for the local init case */
1171	}
1172	else
1173	{
1174	/* Reinit the CPUs from scratch as the suspend state might have
1175	messed with the MSRs. (lousy BIOSes as usual) */
1176	if (g_fHmVmxSupported)
1177	rc = RTMpOnAll(hmR0InitIntelCpu, &FirstRc, NULL);
1178	else
1179	rc = RTMpOnAll(hmR0InitAmdCpu, &FirstRc, NULL);
1180	Assert(RT_SUCCESS(rc) \|\| rc == VERR_NOT_SUPPORTED);
1181	if (RT_SUCCESS(rc))
1182	rc = hmR0FirstRcGetStatus(&FirstRc);
1183	#ifdef LOG_ENABLED
1184	if (RT_FAILURE(rc))
1185	SUPR0Printf("hmR0PowerCallback hmR0InitXxxCpu failed with %Rc\n", rc);
1186	#endif
1187	if (g_fHmGlobalInit)
1188	{
1189	/* Turn VT-x or AMD-V back on on all CPUs. */
1190	rc = RTMpOnAll(hmR0EnableCpuCallback, NULL /* pVM /, &FirstRc / output ignored */);
1191	Assert(RT_SUCCESS(rc) \|\| rc == VERR_NOT_SUPPORTED);
1192	}
1193	/* else nothing to do here for the local init case */
1194	}
1195	}
1196
1197	if (enmEvent == RTPOWEREVENT_RESUME)
1198	ASMAtomicWriteBool(&g_fHmSuspended, false);
1199	}
1200
1201
1202	/**
1203	* Does ring-0 per-VM HM initialization.
1204	*
1205	* This will call the CPU specific init. routine which may initialize and allocate
1206	* resources for virtual CPUs.
1207	*
1208	* @returns VBox status code.
1209	* @param pVM The cross context VM structure.
1210	*
1211	* @remarks This is called after HMR3Init(), see vmR3CreateU() and
1212	* vmR3InitRing3().
1213	*/
1214	VMMR0_INT_DECL(int) HMR0InitVM(PVMCC pVM)
1215	{
1216	AssertCompile(sizeof(pVM->hm.s) <= sizeof(pVM->hm.padding));
1217	AssertCompile(sizeof(pVM->hmr0.s) <= sizeof(pVM->hmr0.padding));
1218	AssertCompile(sizeof(pVM->aCpus[0].hm.s) <= sizeof(pVM->aCpus[0].hm.padding));
1219	AssertCompile(sizeof(pVM->aCpus[0].hmr0.s) <= sizeof(pVM->aCpus[0].hmr0.padding));
1220	AssertReturn(pVM, VERR_INVALID_PARAMETER);
1221
1222	/* Make sure we don't touch HM after we've disabled HM in preparation of a suspend. */
1223	if (ASMAtomicReadBool(&g_fHmSuspended))
1224	return VERR_HM_SUSPEND_PENDING;
1225
1226	/*
1227	* Copy globals to the VM structure.
1228	*/
1229	Assert(!(pVM->hm.s.vmx.fSupported && pVM->hm.s.svm.fSupported));
1230	if (pVM->hm.s.vmx.fSupported)
1231	{
1232	pVM->hmr0.s.vmx.fUsePreemptTimer = pVM->hm.s.vmx.fUsePreemptTimerCfg && g_fHmVmxUsePreemptTimer;
1233	pVM->hm.s.vmx.fUsePreemptTimerCfg = pVM->hmr0.s.vmx.fUsePreemptTimer;
1234	pVM->hm.s.vmx.cPreemptTimerShift = g_cHmVmxPreemptTimerShift;
1235	pVM->hm.s.ForR3.vmx.u64HostCr4 = g_uHmVmxHostCr4;
1236	pVM->hm.s.ForR3.vmx.u64HostMsrEfer = g_uHmVmxHostMsrEfer;
1237	pVM->hm.s.ForR3.vmx.u64HostSmmMonitorCtl = g_uHmVmxHostSmmMonitorCtl;
1238	pVM->hm.s.ForR3.vmx.u64HostFeatCtrl = g_HmMsrs.u.vmx.u64FeatCtrl;
1239	HMGetVmxMsrsFromHwvirtMsrs(&g_HmMsrs, &pVM->hm.s.ForR3.vmx.Msrs);
1240	/* If you need to tweak host MSRs for testing VMX R0 code, do it here. */
1241
1242	/* Enable VPID if supported and configured. */
1243	if (g_HmMsrs.u.vmx.ProcCtls2.n.allowed1 & VMX_PROC_CTLS2_VPID)
1244	pVM->hm.s.ForR3.vmx.fVpid = pVM->hmr0.s.vmx.fVpid = pVM->hm.s.vmx.fAllowVpid; /* Can be overridden by CFGM in HMR3Init(). */
1245
1246	/* Use VMCS shadowing if supported. */
1247	pVM->hmr0.s.vmx.fUseVmcsShadowing = pVM->cpum.ro.GuestFeatures.fVmx
1248	&& (g_HmMsrs.u.vmx.ProcCtls2.n.allowed1 & VMX_PROC_CTLS2_VMCS_SHADOWING);
1249	pVM->hm.s.ForR3.vmx.fUseVmcsShadowing = pVM->hmr0.s.vmx.fUseVmcsShadowing;
1250
1251	/* Use the VMCS controls for swapping the EFER MSR if supported. */
1252	pVM->hm.s.ForR3.vmx.fSupportsVmcsEfer = g_fHmVmxSupportsVmcsEfer;
1253
1254	#if 0
1255	/* Enable APIC register virtualization and virtual-interrupt delivery if supported. */
1256	if ( (g_HmMsrs.u.vmx.ProcCtls2.n.allowed1 & VMX_PROC_CTLS2_APIC_REG_VIRT)
1257	&& (g_HmMsrs.u.vmx.ProcCtls2.n.allowed1 & VMX_PROC_CTLS2_VIRT_INTR_DELIVERY))
1258	pVM->hm.s.fVirtApicRegs = true;
1259
1260	/* Enable posted-interrupt processing if supported. */
1261	/** @todo Add and query IPRT API for host OS support for posted-interrupt IPI
1262	* here. */
1263	if ( (g_HmMsrs.u.vmx.PinCtls.n.allowed1 & VMX_PIN_CTLS_POSTED_INT)
1264	&& (g_HmMsrs.u.vmx.ExitCtls.n.allowed1 & VMX_EXIT_CTLS_ACK_EXT_INT))
1265	pVM->hm.s.fPostedIntrs = true;
1266	#endif
1267	}
1268	else if (pVM->hm.s.svm.fSupported)
1269	{
1270	pVM->hm.s.ForR3.svm.u32Rev = g_uHmSvmRev;
1271	pVM->hm.s.ForR3.svm.fFeatures = g_fHmSvmFeatures;
1272	pVM->hm.s.ForR3.svm.u64MsrHwcr = g_HmMsrs.u.svm.u64MsrHwcr;
1273	/* If you need to tweak host MSRs for testing SVM R0 code, do it here. */
1274	}
1275	pVM->hm.s.ForR3.rcInit = g_rcHmInit;
1276	pVM->hm.s.ForR3.uMaxAsid = g_uHmMaxAsid;
1277
1278	/*
1279	* Set default maximum inner loops in ring-0 before returning to ring-3.
1280	* Can be overriden using CFGM.
1281	*/
1282	uint32_t cMaxResumeLoops = pVM->hm.s.cMaxResumeLoopsCfg;
1283	if (!cMaxResumeLoops)
1284	{
1285	cMaxResumeLoops = 1024;
1286	if (RTThreadPreemptIsPendingTrusty())
1287	cMaxResumeLoops = 8192;
1288	}
1289	else if (cMaxResumeLoops > 16384)
1290	cMaxResumeLoops = 16384;
1291	else if (cMaxResumeLoops < 32)
1292	cMaxResumeLoops = 32;
1293	pVM->hm.s.cMaxResumeLoopsCfg = pVM->hmr0.s.cMaxResumeLoops = cMaxResumeLoops;
1294
1295	/*
1296	* Initialize some per-VCPU fields.
1297	*/
1298	for (VMCPUID idCpu = 0; idCpu < pVM->cCpus; idCpu++)
1299	{
1300	PVMCPUCC pVCpu = VMCC_GET_CPU(pVM, idCpu);
1301	pVCpu->hmr0.s.idEnteredCpu = NIL_RTCPUID;
1302	pVCpu->hmr0.s.idLastCpu = NIL_RTCPUID;
1303
1304	/* We'll aways increment this the first time (host uses ASID 0). */
1305	AssertReturn(!pVCpu->hmr0.s.uCurrentAsid, VERR_HM_IPE_3);
1306	}
1307
1308	/*
1309	* Configure defences against spectre and other CPU bugs.
1310	*/
1311	uint32_t fWorldSwitcher = 0;
1312	uint32_t cLastStdLeaf = ASMCpuId_EAX(0);
1313	if (cLastStdLeaf >= 0x00000007 && RTX86IsValidStdRange(cLastStdLeaf))
1314	{
1315	uint32_t uEdx = 0;
1316	ASMCpuIdExSlow(0x00000007, 0, 0, 0, NULL, NULL, NULL, &uEdx);
1317
1318	if (uEdx & X86_CPUID_STEXT_FEATURE_EDX_IBRS_IBPB)
1319	{
1320	if (pVM->hm.s.fIbpbOnVmExit)
1321	fWorldSwitcher \|= HM_WSF_IBPB_EXIT;
1322	if (pVM->hm.s.fIbpbOnVmEntry)
1323	fWorldSwitcher \|= HM_WSF_IBPB_ENTRY;
1324	}
1325	if (uEdx & X86_CPUID_STEXT_FEATURE_EDX_FLUSH_CMD)
1326	{
1327	if (pVM->hm.s.fL1dFlushOnVmEntry)
1328	fWorldSwitcher \|= HM_WSF_L1D_ENTRY;
1329	else if (pVM->hm.s.fL1dFlushOnSched)
1330	fWorldSwitcher \|= HM_WSF_L1D_SCHED;
1331	}
1332	if (uEdx & X86_CPUID_STEXT_FEATURE_EDX_MD_CLEAR)
1333	{
1334	if (pVM->hm.s.fMdsClearOnVmEntry)
1335	fWorldSwitcher \|= HM_WSF_MDS_ENTRY;
1336	else if (pVM->hm.s.fMdsClearOnSched)
1337	fWorldSwitcher \|= HM_WSF_MDS_SCHED;
1338	}
1339	}
1340	for (VMCPUID idCpu = 0; idCpu < pVM->cCpus; idCpu++)
1341	{
1342	PVMCPUCC pVCpu = VMCC_GET_CPU(pVM, idCpu);
1343	pVCpu->hmr0.s.fWorldSwitcher = fWorldSwitcher;
1344	}
1345	pVM->hm.s.ForR3.fWorldSwitcher = fWorldSwitcher;
1346
1347
1348	/*
1349	* Call the hardware specific initialization method.
1350	*/
1351	return g_HmR0Ops.pfnInitVM(pVM);
1352	}
1353
1354
1355	/**
1356	* Does ring-0 per VM HM termination.
1357	*
1358	* @returns VBox status code.
1359	* @param pVM The cross context VM structure.
1360	*/
1361	VMMR0_INT_DECL(int) HMR0TermVM(PVMCC pVM)
1362	{
1363	Log(("HMR0TermVM: %p\n", pVM));
1364	AssertReturn(pVM, VERR_INVALID_PARAMETER);
1365
1366	/*
1367	* Call the hardware specific method.
1368	*
1369	* Note! We might be preparing for a suspend, so the pfnTermVM() functions should probably not
1370	* mess with VT-x/AMD-V features on the CPU, currently all they do is free memory so this is safe.
1371	*/
1372	return g_HmR0Ops.pfnTermVM(pVM);
1373	}
1374
1375
1376	/**
1377	* Sets up a VT-x or AMD-V session.
1378	*
1379	* This is mostly about setting up the hardware VM state.
1380	*
1381	* @returns VBox status code.
1382	* @param pVM The cross context VM structure.
1383	*/
1384	VMMR0_INT_DECL(int) HMR0SetupVM(PVMCC pVM)
1385	{
1386	Log(("HMR0SetupVM: %p\n", pVM));
1387	AssertReturn(pVM, VERR_INVALID_PARAMETER);
1388
1389	/* Make sure we don't touch HM after we've disabled HM in preparation of a suspend. */
1390	AssertReturn(!ASMAtomicReadBool(&g_fHmSuspended), VERR_HM_SUSPEND_PENDING);
1391
1392	/* On first entry we'll sync everything. */
1393	VMCC_FOR_EACH_VMCPU_STMT(pVM, pVCpu->hm.s.fCtxChanged \|= HM_CHANGED_HOST_CONTEXT \| HM_CHANGED_ALL_GUEST);
1394
1395	/*
1396	* Call the hardware specific setup VM method. This requires the CPU to be
1397	* enabled for AMD-V/VT-x and preemption to be prevented.
1398	*/
1399	RTTHREADPREEMPTSTATE PreemptState = RTTHREADPREEMPTSTATE_INITIALIZER;
1400	RTThreadPreemptDisable(&PreemptState);
1401	RTCPUID const idCpu = RTMpCpuId();
1402
1403	/* Enable VT-x or AMD-V if local init is required. */
1404	int rc;
1405	if (!g_fHmGlobalInit)
1406	{
1407	Assert(!g_fHmVmxSupported \|\| !g_fHmVmxUsingSUPR0EnableVTx);
1408	rc = hmR0EnableCpu(pVM, idCpu);
1409	if (RT_FAILURE(rc))
1410	{
1411	RTThreadPreemptRestore(&PreemptState);
1412	return rc;
1413	}
1414	}
1415
1416	/* Setup VT-x or AMD-V. */
1417	rc = g_HmR0Ops.pfnSetupVM(pVM);
1418
1419	/* Disable VT-x or AMD-V if local init was done before. */
1420	if (!g_fHmGlobalInit)
1421	{
1422	Assert(!g_fHmVmxSupported \|\| !g_fHmVmxUsingSUPR0EnableVTx);
1423	int rc2 = hmR0DisableCpu(idCpu);
1424	AssertRC(rc2);
1425	}
1426
1427	RTThreadPreemptRestore(&PreemptState);
1428	return rc;
1429	}
1430
1431
1432	/**
1433	* Notification callback before an assertion longjump and guru mediation.
1434	*
1435	* @returns VBox status code.
1436	* @param pVCpu The cross context virtual CPU structure.
1437	* @param pvUser User argument, currently unused, NULL.
1438	*/
1439	static DECLCALLBACK(int) hmR0AssertionCallback(PVMCPUCC pVCpu, void *pvUser)
1440	{
1441	RT_NOREF(pvUser);
1442	Assert(pVCpu);
1443	Assert(g_HmR0Ops.pfnAssertionCallback);
1444	return g_HmR0Ops.pfnAssertionCallback(pVCpu);
1445	}
1446
1447
1448	/**
1449	* Turns on HM on the CPU if necessary and initializes the bare minimum state
1450	* required for entering HM context.
1451	*
1452	* @returns VBox status code.
1453	* @param pVCpu The cross context virtual CPU structure.
1454	*
1455	* @remarks No-long-jump zone!!!
1456	*/
1457	VMMR0_INT_DECL(int) hmR0EnterCpu(PVMCPUCC pVCpu)
1458	{
1459	Assert(!RTThreadPreemptIsEnabled(NIL_RTTHREAD));
1460
1461	int rc = VINF_SUCCESS;
1462	RTCPUID const idCpu = RTMpCpuId();
1463	PHMPHYSCPU pHostCpu = &g_aHmCpuInfo[idCpu];
1464	AssertPtr(pHostCpu);
1465
1466	/* Enable VT-x or AMD-V if local init is required, or enable if it's a freshly onlined CPU. */
1467	if (!pHostCpu->fConfigured)
1468	rc = hmR0EnableCpu(pVCpu->CTX_SUFF(pVM), idCpu);
1469
1470	/* Register a callback to fire prior to performing a longjmp to ring-3 so HM can disable VT-x/AMD-V if needed. */
1471	VMMR0AssertionSetNotification(pVCpu, hmR0AssertionCallback, NULL /pvUser/);
1472
1473	/* Reload host-state (back from ring-3/migrated CPUs) and shared guest/host bits. */
1474	if (g_fHmVmxSupported)
1475	pVCpu->hm.s.fCtxChanged \|= HM_CHANGED_HOST_CONTEXT \| HM_CHANGED_VMX_HOST_GUEST_SHARED_STATE;
1476	else
1477	pVCpu->hm.s.fCtxChanged \|= HM_CHANGED_HOST_CONTEXT \| HM_CHANGED_SVM_HOST_GUEST_SHARED_STATE;
1478
1479	Assert(pHostCpu->idCpu == idCpu && pHostCpu->idCpu != NIL_RTCPUID);
1480	pVCpu->hmr0.s.idEnteredCpu = idCpu;
1481	return rc;
1482	}
1483
1484
1485	/**
1486	* Enters the VT-x or AMD-V session.
1487	*
1488	* @returns VBox status code.
1489	* @param pVCpu The cross context virtual CPU structure.
1490	*
1491	* @remarks This is called with preemption disabled.
1492	*/
1493	VMMR0_INT_DECL(int) HMR0Enter(PVMCPUCC pVCpu)
1494	{
1495	/* Make sure we can't enter a session after we've disabled HM in preparation of a suspend. */
1496	AssertReturn(!ASMAtomicReadBool(&g_fHmSuspended), VERR_HM_SUSPEND_PENDING);
1497	Assert(!RTThreadPreemptIsEnabled(NIL_RTTHREAD));
1498
1499	/* Load the bare minimum state required for entering HM. */
1500	int rc = hmR0EnterCpu(pVCpu);
1501	if (RT_SUCCESS(rc))
1502	{
1503	if (g_fHmVmxSupported)
1504	Assert( (pVCpu->hm.s.fCtxChanged & (HM_CHANGED_HOST_CONTEXT \| HM_CHANGED_VMX_HOST_GUEST_SHARED_STATE))
1505	== (HM_CHANGED_HOST_CONTEXT \| HM_CHANGED_VMX_HOST_GUEST_SHARED_STATE));
1506	else
1507	Assert( (pVCpu->hm.s.fCtxChanged & (HM_CHANGED_HOST_CONTEXT \| HM_CHANGED_SVM_HOST_GUEST_SHARED_STATE))
1508	== (HM_CHANGED_HOST_CONTEXT \| HM_CHANGED_SVM_HOST_GUEST_SHARED_STATE));
1509
1510	/* Keep track of the CPU owning the VMCS for debugging scheduling weirdness and ring-3 calls. */
1511	rc = g_HmR0Ops.pfnEnterSession(pVCpu);
1512	AssertMsgRCReturnStmt(rc, ("rc=%Rrc pVCpu=%p\n", rc, pVCpu), pVCpu->hmr0.s.idEnteredCpu = NIL_RTCPUID, rc);
1513
1514	/* Exports the host-state as we may be resuming code after a longjmp and quite
1515	possibly now be scheduled on a different CPU. */
1516	rc = g_HmR0Ops.pfnExportHostState(pVCpu);
1517	AssertMsgRCReturnStmt(rc, ("rc=%Rrc pVCpu=%p\n", rc, pVCpu), pVCpu->hmr0.s.idEnteredCpu = NIL_RTCPUID, rc);
1518	}
1519	return rc;
1520	}
1521
1522
1523	/**
1524	* Deinitializes the bare minimum state used for HM context and if necessary
1525	* disable HM on the CPU.
1526	*
1527	* @returns VBox status code.
1528	* @param pVCpu The cross context virtual CPU structure.
1529	*
1530	* @remarks No-long-jump zone!!!
1531	*/
1532	VMMR0_INT_DECL(int) HMR0LeaveCpu(PVMCPUCC pVCpu)
1533	{
1534	Assert(!RTThreadPreemptIsEnabled(NIL_RTTHREAD));
1535	VMCPU_ASSERT_EMT_RETURN(pVCpu, VERR_HM_WRONG_CPU);
1536
1537	RTCPUID const idCpu = RTMpCpuId();
1538	PCHMPHYSCPU pHostCpu = &g_aHmCpuInfo[idCpu];
1539
1540	if ( !g_fHmGlobalInit
1541	&& pHostCpu->fConfigured)
1542	{
1543	int rc = hmR0DisableCpu(idCpu);
1544	AssertRCReturn(rc, rc);
1545	Assert(!pHostCpu->fConfigured);
1546	Assert(pHostCpu->idCpu == NIL_RTCPUID);
1547
1548	/* For obtaining a non-zero ASID/VPID on next re-entry. */
1549	pVCpu->hmr0.s.idLastCpu = NIL_RTCPUID;
1550	}
1551
1552	/* Clear it while leaving HM context, hmPokeCpuForTlbFlush() relies on this. */
1553	pVCpu->hmr0.s.idEnteredCpu = NIL_RTCPUID;
1554
1555	/* De-register the longjmp-to-ring 3 callback now that we have reliquished hardware resources. */
1556	VMMR0AssertionRemoveNotification(pVCpu);
1557	return VINF_SUCCESS;
1558	}
1559
1560
1561	/**
1562	* Thread-context hook for HM.
1563	*
1564	* This is used together with RTThreadCtxHookCreate() on platforms which
1565	* supports it, and directly from VMMR0EmtPrepareForBlocking() and
1566	* VMMR0EmtResumeAfterBlocking() on platforms which don't.
1567	*
1568	* @param enmEvent The thread-context event.
1569	* @param pvUser Opaque pointer to the VMCPU.
1570	*/
1571	VMMR0_INT_DECL(void) HMR0ThreadCtxCallback(RTTHREADCTXEVENT enmEvent, void *pvUser)
1572	{
1573	PVMCPUCC pVCpu = (PVMCPUCC)pvUser;
1574	Assert(pVCpu);
1575	Assert(g_HmR0Ops.pfnThreadCtxCallback);
1576
1577	g_HmR0Ops.pfnThreadCtxCallback(enmEvent, pVCpu, g_fHmGlobalInit);
1578	}
1579
1580
1581	/**
1582	* Runs guest code in a hardware accelerated VM.
1583	*
1584	* @returns Strict VBox status code. (VBOXSTRICTRC isn't used because it's
1585	* called from setjmp assembly.)
1586	* @param pVM The cross context VM structure.
1587	* @param pVCpu The cross context virtual CPU structure.
1588	*
1589	* @remarks Can be called with preemption enabled if thread-context hooks are
1590	* used!!!
1591	*/
1592	VMMR0_INT_DECL(int) HMR0RunGuestCode(PVMCC pVM, PVMCPUCC pVCpu)
1593	{
1594	RT_NOREF(pVM);
1595
1596	#ifdef VBOX_STRICT
1597	/* With thread-context hooks we would be running this code with preemption enabled. */
1598	if (!RTThreadPreemptIsEnabled(NIL_RTTHREAD))
1599	{
1600	PCHMPHYSCPU pHostCpu = &g_aHmCpuInfo[RTMpCpuId()];
1601	Assert(!VMCPU_FF_IS_ANY_SET(pVCpu, VMCPU_FF_PGM_SYNC_CR3 \| VMCPU_FF_PGM_SYNC_CR3_NON_GLOBAL));
1602	Assert(pHostCpu->fConfigured);
1603	AssertReturn(!ASMAtomicReadBool(&g_fHmSuspended), VERR_HM_SUSPEND_PENDING);
1604	}
1605	#endif
1606
1607	VBOXSTRICTRC rcStrict = g_HmR0Ops.pfnRunGuestCode(pVCpu);
1608	return VBOXSTRICTRC_VAL(rcStrict);
1609	}
1610
1611
1612	/**
1613	* Notification from CPUM that it has unloaded the guest FPU/SSE/AVX state from
1614	* the host CPU and that guest access to it must be intercepted.
1615	*
1616	* @param pVCpu The cross context virtual CPU structure of the calling EMT.
1617	*/
1618	VMMR0_INT_DECL(void) HMR0NotifyCpumUnloadedGuestFpuState(PVMCPUCC pVCpu)
1619	{
1620	ASMAtomicUoOrU64(&pVCpu->hm.s.fCtxChanged, HM_CHANGED_GUEST_CR0);
1621	}
1622
1623
1624	/**
1625	* Notification from CPUM that it has modified the host CR0 (because of FPU).
1626	*
1627	* @param pVCpu The cross context virtual CPU structure of the calling EMT.
1628	*/
1629	VMMR0_INT_DECL(void) HMR0NotifyCpumModifiedHostCr0(PVMCPUCC pVCpu)
1630	{
1631	ASMAtomicUoOrU64(&pVCpu->hm.s.fCtxChanged, HM_CHANGED_HOST_CONTEXT);
1632	}
1633
1634
1635	/**
1636	* Returns suspend status of the host.
1637	*
1638	* @returns Suspend pending or not.
1639	*/
1640	VMMR0_INT_DECL(bool) HMR0SuspendPending(void)
1641	{
1642	return ASMAtomicReadBool(&g_fHmSuspended);
1643	}
1644
1645
1646	/**
1647	* Invalidates a guest page from the host TLB.
1648	*
1649	* @param pVCpu The cross context virtual CPU structure.
1650	* @param GCVirt Page to invalidate.
1651	*/
1652	VMMR0_INT_DECL(int) HMR0InvalidatePage(PVMCPUCC pVCpu, RTGCPTR GCVirt)
1653	{
1654	PVMCC pVM = pVCpu->CTX_SUFF(pVM);
1655	if (pVM->hm.s.vmx.fSupported)
1656	return VMXR0InvalidatePage(pVCpu, GCVirt);
1657	return SVMR0InvalidatePage(pVCpu, GCVirt);
1658	}
1659
1660
1661	/**
1662	* Returns the cpu structure for the current cpu.
1663	* Keep in mind that there is no guarantee it will stay the same (long jumps to ring 3!!!).
1664	*
1665	* @returns The cpu structure pointer.
1666	*/
1667	VMMR0_INT_DECL(PHMPHYSCPU) hmR0GetCurrentCpu(void)
1668	{
1669	Assert(!RTThreadPreemptIsEnabled(NIL_RTTHREAD));
1670	RTCPUID const idCpu = RTMpCpuId();
1671	Assert(idCpu < RT_ELEMENTS(g_aHmCpuInfo));
1672	return &g_aHmCpuInfo[idCpu];
1673	}
1674
1675
1676	/**
1677	* Interface for importing state on demand (used by IEM).
1678	*
1679	* @returns VBox status code.
1680	* @param pVCpu The cross context CPU structure.
1681	* @param fWhat What to import, CPUMCTX_EXTRN_XXX.
1682	*/
1683	VMMR0_INT_DECL(int) HMR0ImportStateOnDemand(PVMCPUCC pVCpu, uint64_t fWhat)
1684	{
1685	if (pVCpu->CTX_SUFF(pVM)->hm.s.vmx.fSupported)
1686	return VMXR0ImportStateOnDemand(pVCpu, fWhat);
1687	return SVMR0ImportStateOnDemand(pVCpu, fWhat);
1688	}
1689
1690
1691	/**
1692	* Gets HM VM-exit auxiliary information.
1693	*
1694	* @returns VBox status code.
1695	* @param pVCpu The cross context CPU structure.
1696	* @param pHmExitAux Where to store the auxiliary info.
1697	* @param fWhat What to get, see HMVMX_READ_XXX. This is ignored/unused
1698	* on AMD-V.
1699	*
1700	* @remarks Currently this works only when executing a nested-guest using
1701	* hardware-assisted execution as it's where the auxiliary information is
1702	* required outside of HM. In the future we can make this available while
1703	* executing a regular (non-nested) guest if necessary.
1704	*/
1705	VMMR0_INT_DECL(int) HMR0GetExitAuxInfo(PVMCPUCC pVCpu, PHMEXITAUX pHmExitAux, uint32_t fWhat)
1706	{
1707	Assert(pHmExitAux);
1708	Assert(!(fWhat & ~HMVMX_READ_VALID_MASK));
1709	if (pVCpu->CTX_SUFF(pVM)->hm.s.vmx.fSupported)
1710	return VMXR0GetExitAuxInfo(pVCpu, &pHmExitAux->Vmx, fWhat);
1711	return SVMR0GetExitAuxInfo(pVCpu, &pHmExitAux->Svm);
1712	}
1713
1714
1715	#ifdef VBOX_STRICT
1716
1717	/**
1718	* Dumps a descriptor.
1719	*
1720	* @param pDesc Descriptor to dump.
1721	* @param Sel The selector.
1722	* @param pszSel The name of the selector.
1723	*/
1724	VMMR0_INT_DECL(void) hmR0DumpDescriptor(PCX86DESCHC pDesc, RTSEL Sel, const char *pszSel)
1725	{
1726	/*
1727	* Make variable description string.
1728	*/
1729	static struct
1730	{
1731	unsigned cch;
1732	const char *psz;
1733	} const s_aTypes[32] =
1734	{
1735	# define STRENTRY(str) { sizeof(str) - 1, str }
1736
1737	/* system */
1738	# if HC_ARCH_BITS == 64
1739	STRENTRY("Reserved0 "), /* 0x00 */
1740	STRENTRY("Reserved1 "), /* 0x01 */
1741	STRENTRY("LDT "), /* 0x02 */
1742	STRENTRY("Reserved3 "), /* 0x03 */
1743	STRENTRY("Reserved4 "), /* 0x04 */
1744	STRENTRY("Reserved5 "), /* 0x05 */
1745	STRENTRY("Reserved6 "), /* 0x06 */
1746	STRENTRY("Reserved7 "), /* 0x07 */
1747	STRENTRY("Reserved8 "), /* 0x08 */
1748	STRENTRY("TSS64Avail "), /* 0x09 */
1749	STRENTRY("ReservedA "), /* 0x0a */
1750	STRENTRY("TSS64Busy "), /* 0x0b */
1751	STRENTRY("Call64 "), /* 0x0c */
1752	STRENTRY("ReservedD "), /* 0x0d */
1753	STRENTRY("Int64 "), /* 0x0e */
1754	STRENTRY("Trap64 "), /* 0x0f */
1755	# else
1756	STRENTRY("Reserved0 "), /* 0x00 */
1757	STRENTRY("TSS16Avail "), /* 0x01 */
1758	STRENTRY("LDT "), /* 0x02 */
1759	STRENTRY("TSS16Busy "), /* 0x03 */
1760	STRENTRY("Call16 "), /* 0x04 */
1761	STRENTRY("Task "), /* 0x05 */
1762	STRENTRY("Int16 "), /* 0x06 */
1763	STRENTRY("Trap16 "), /* 0x07 */
1764	STRENTRY("Reserved8 "), /* 0x08 */
1765	STRENTRY("TSS32Avail "), /* 0x09 */
1766	STRENTRY("ReservedA "), /* 0x0a */
1767	STRENTRY("TSS32Busy "), /* 0x0b */
1768	STRENTRY("Call32 "), /* 0x0c */
1769	STRENTRY("ReservedD "), /* 0x0d */
1770	STRENTRY("Int32 "), /* 0x0e */
1771	STRENTRY("Trap32 "), /* 0x0f */
1772	# endif
1773	/* non system */
1774	STRENTRY("DataRO "), /* 0x10 */
1775	STRENTRY("DataRO Accessed "), /* 0x11 */
1776	STRENTRY("DataRW "), /* 0x12 */
1777	STRENTRY("DataRW Accessed "), /* 0x13 */
1778	STRENTRY("DataDownRO "), /* 0x14 */
1779	STRENTRY("DataDownRO Accessed "), /* 0x15 */
1780	STRENTRY("DataDownRW "), /* 0x16 */
1781	STRENTRY("DataDownRW Accessed "), /* 0x17 */
1782	STRENTRY("CodeEO "), /* 0x18 */
1783	STRENTRY("CodeEO Accessed "), /* 0x19 */
1784	STRENTRY("CodeER "), /* 0x1a */
1785	STRENTRY("CodeER Accessed "), /* 0x1b */
1786	STRENTRY("CodeConfEO "), /* 0x1c */
1787	STRENTRY("CodeConfEO Accessed "), /* 0x1d */
1788	STRENTRY("CodeConfER "), /* 0x1e */
1789	STRENTRY("CodeConfER Accessed ") /* 0x1f */
1790	# undef SYSENTRY
1791	};
1792	# define ADD_STR(psz, pszAdd) do { strcpy(psz, pszAdd); psz += strlen(pszAdd); } while (0)
1793	char szMsg[128];
1794	char *psz = &szMsg[0];
1795	unsigned i = pDesc->Gen.u1DescType << 4 \| pDesc->Gen.u4Type;
1796	memcpy(psz, s_aTypes[i].psz, s_aTypes[i].cch);
1797	psz += s_aTypes[i].cch;
1798
1799	if (pDesc->Gen.u1Present)
1800	ADD_STR(psz, "Present ");
1801	else
1802	ADD_STR(psz, "Not-Present ");
1803	# if HC_ARCH_BITS == 64
1804	if (pDesc->Gen.u1Long)
1805	ADD_STR(psz, "64-bit ");
1806	else
1807	ADD_STR(psz, "Comp ");
1808	# else
1809	if (pDesc->Gen.u1Granularity)
1810	ADD_STR(psz, "Page ");
1811	if (pDesc->Gen.u1DefBig)
1812	ADD_STR(psz, "32-bit ");
1813	else
1814	ADD_STR(psz, "16-bit ");
1815	# endif
1816	# undef ADD_STR
1817	*psz = '\0';
1818
1819	/*
1820	* Limit and Base and format the output.
1821	*/
1822	#ifdef LOG_ENABLED
1823	uint32_t u32Limit = X86DESC_LIMIT_G(pDesc);
1824
1825	# if HC_ARCH_BITS == 64
1826	uint64_t const u64Base = X86DESC64_BASE(pDesc);
1827	Log((" %s { %#04x - %#RX64 %#RX64 - base=%#RX64 limit=%#08x dpl=%d } %s\n", pszSel,
1828	Sel, pDesc->au64[0], pDesc->au64[1], u64Base, u32Limit, pDesc->Gen.u2Dpl, szMsg));
1829	# else
1830	uint32_t const u32Base = X86DESC_BASE(pDesc);
1831	Log((" %s { %#04x - %#08x %#08x - base=%#08x limit=%#08x dpl=%d } %s\n", pszSel,
1832	Sel, pDesc->au32[0], pDesc->au32[1], u32Base, u32Limit, pDesc->Gen.u2Dpl, szMsg));
1833	# endif
1834	#else
1835	NOREF(Sel); NOREF(pszSel);
1836	#endif
1837	}
1838
1839
1840	/**
1841	* Formats a full register dump.
1842	*
1843	* @param pVCpu The cross context virtual CPU structure.
1844	* @param fFlags The dumping flags (HM_DUMP_REG_FLAGS_XXX).
1845	*/
1846	VMMR0_INT_DECL(void) hmR0DumpRegs(PVMCPUCC pVCpu, uint32_t fFlags)
1847	{
1848	/*
1849	* Format the flags.
1850	*/
1851	static struct
1852	{
1853	const char *pszSet;
1854	const char *pszClear;
1855	uint32_t fFlag;
1856	} const s_aFlags[] =
1857	{
1858	{ "vip", NULL, X86_EFL_VIP },
1859	{ "vif", NULL, X86_EFL_VIF },
1860	{ "ac", NULL, X86_EFL_AC },
1861	{ "vm", NULL, X86_EFL_VM },
1862	{ "rf", NULL, X86_EFL_RF },
1863	{ "nt", NULL, X86_EFL_NT },
1864	{ "ov", "nv", X86_EFL_OF },
1865	{ "dn", "up", X86_EFL_DF },
1866	{ "ei", "di", X86_EFL_IF },
1867	{ "tf", NULL, X86_EFL_TF },
1868	{ "nt", "pl", X86_EFL_SF },
1869	{ "nz", "zr", X86_EFL_ZF },
1870	{ "ac", "na", X86_EFL_AF },
1871	{ "po", "pe", X86_EFL_PF },
1872	{ "cy", "nc", X86_EFL_CF },
1873	};
1874	char szEFlags[80];
1875	char *psz = szEFlags;
1876	PCCPUMCTX pCtx = &pVCpu->cpum.GstCtx;
1877	uint32_t fEFlags = pCtx->eflags.u;
1878	for (unsigned i = 0; i < RT_ELEMENTS(s_aFlags); i++)
1879	{
1880	const char *pszAdd = s_aFlags[i].fFlag & fEFlags ? s_aFlags[i].pszSet : s_aFlags[i].pszClear;
1881	if (pszAdd)
1882	{
1883	strcpy(psz, pszAdd);
1884	psz += strlen(pszAdd);
1885	*psz++ = ' ';
1886	}
1887	}
1888	psz[-1] = '\0';
1889
1890	if (fFlags & HM_DUMP_REG_FLAGS_GPRS)
1891	{
1892	/*
1893	* Format the registers.
1894	*/
1895	if (CPUMIsGuestIn64BitCode(pVCpu))
1896	Log(("rax=%016RX64 rbx=%016RX64 rcx=%016RX64 rdx=%016RX64\n"
1897	"rsi=%016RX64 rdi=%016RX64 r8 =%016RX64 r9 =%016RX64\n"
1898	"r10=%016RX64 r11=%016RX64 r12=%016RX64 r13=%016RX64\n"
1899	"r14=%016RX64 r15=%016RX64\n"
1900	"rip=%016RX64 rsp=%016RX64 rbp=%016RX64 iopl=%d %*s\n"
1901	"cs={%04x base=%016RX64 limit=%08x flags=%08x}\n"
1902	"ds={%04x base=%016RX64 limit=%08x flags=%08x}\n"
1903	"es={%04x base=%016RX64 limit=%08x flags=%08x}\n"
1904	"fs={%04x base=%016RX64 limit=%08x flags=%08x}\n"
1905	"gs={%04x base=%016RX64 limit=%08x flags=%08x}\n"
1906	"ss={%04x base=%016RX64 limit=%08x flags=%08x}\n"
1907	"cr0=%016RX64 cr2=%016RX64 cr3=%016RX64 cr4=%016RX64\n"
1908	"dr0=%016RX64 dr1=%016RX64 dr2=%016RX64 dr3=%016RX64\n"
1909	"dr4=%016RX64 dr5=%016RX64 dr6=%016RX64 dr7=%016RX64\n"
1910	"gdtr=%016RX64:%04x idtr=%016RX64:%04x eflags=%08x\n"
1911	"ldtr={%04x base=%08RX64 limit=%08x flags=%08x}\n"
1912	"tr ={%04x base=%08RX64 limit=%08x flags=%08x}\n"
1913	"SysEnter={cs=%04llx eip=%08llx esp=%08llx}\n"
1914	,
1915	pCtx->rax, pCtx->rbx, pCtx->rcx, pCtx->rdx, pCtx->rsi, pCtx->rdi,
1916	pCtx->r8, pCtx->r9, pCtx->r10, pCtx->r11, pCtx->r12, pCtx->r13,
1917	pCtx->r14, pCtx->r15,
1918	pCtx->rip, pCtx->rsp, pCtx->rbp, X86_EFL_GET_IOPL(fEFlags), 31, szEFlags,
1919	pCtx->cs.Sel, pCtx->cs.u64Base, pCtx->cs.u32Limit, pCtx->cs.Attr.u,
1920	pCtx->ds.Sel, pCtx->ds.u64Base, pCtx->ds.u32Limit, pCtx->ds.Attr.u,
1921	pCtx->es.Sel, pCtx->es.u64Base, pCtx->es.u32Limit, pCtx->es.Attr.u,
1922	pCtx->fs.Sel, pCtx->fs.u64Base, pCtx->fs.u32Limit, pCtx->fs.Attr.u,
1923	pCtx->gs.Sel, pCtx->gs.u64Base, pCtx->gs.u32Limit, pCtx->gs.Attr.u,
1924	pCtx->ss.Sel, pCtx->ss.u64Base, pCtx->ss.u32Limit, pCtx->ss.Attr.u,
1925	pCtx->cr0, pCtx->cr2, pCtx->cr3, pCtx->cr4,
1926	pCtx->dr[0], pCtx->dr[1], pCtx->dr[2], pCtx->dr[3],
1927	pCtx->dr[4], pCtx->dr[5], pCtx->dr[6], pCtx->dr[7],
1928	pCtx->gdtr.pGdt, pCtx->gdtr.cbGdt, pCtx->idtr.pIdt, pCtx->idtr.cbIdt, fEFlags,
1929	pCtx->ldtr.Sel, pCtx->ldtr.u64Base, pCtx->ldtr.u32Limit, pCtx->ldtr.Attr.u,
1930	pCtx->tr.Sel, pCtx->tr.u64Base, pCtx->tr.u32Limit, pCtx->tr.Attr.u,
1931	pCtx->SysEnter.cs, pCtx->SysEnter.eip, pCtx->SysEnter.esp));
1932	else
1933	Log(("eax=%08x ebx=%08x ecx=%08x edx=%08x esi=%08x edi=%08x\n"
1934	"eip=%08x esp=%08x ebp=%08x iopl=%d %*s\n"
1935	"cs={%04x base=%016RX64 limit=%08x flags=%08x} dr0=%08RX64 dr1=%08RX64\n"
1936	"ds={%04x base=%016RX64 limit=%08x flags=%08x} dr2=%08RX64 dr3=%08RX64\n"
1937	"es={%04x base=%016RX64 limit=%08x flags=%08x} dr4=%08RX64 dr5=%08RX64\n"
1938	"fs={%04x base=%016RX64 limit=%08x flags=%08x} dr6=%08RX64 dr7=%08RX64\n"
1939	"gs={%04x base=%016RX64 limit=%08x flags=%08x} cr0=%08RX64 cr2=%08RX64\n"
1940	"ss={%04x base=%016RX64 limit=%08x flags=%08x} cr3=%08RX64 cr4=%08RX64\n"
1941	"gdtr=%016RX64:%04x idtr=%016RX64:%04x eflags=%08x\n"
1942	"ldtr={%04x base=%08RX64 limit=%08x flags=%08x}\n"
1943	"tr ={%04x base=%08RX64 limit=%08x flags=%08x}\n"
1944	"SysEnter={cs=%04llx eip=%08llx esp=%08llx}\n"
1945	,
1946	pCtx->eax, pCtx->ebx, pCtx->ecx, pCtx->edx, pCtx->esi, pCtx->edi,
1947	pCtx->eip, pCtx->esp, pCtx->ebp, X86_EFL_GET_IOPL(fEFlags), 31, szEFlags,
1948	pCtx->cs.Sel, pCtx->cs.u64Base, pCtx->cs.u32Limit, pCtx->cs.Attr.u, pCtx->dr[0], pCtx->dr[1],
1949	pCtx->ds.Sel, pCtx->ds.u64Base, pCtx->ds.u32Limit, pCtx->ds.Attr.u, pCtx->dr[2], pCtx->dr[3],
1950	pCtx->es.Sel, pCtx->es.u64Base, pCtx->es.u32Limit, pCtx->es.Attr.u, pCtx->dr[4], pCtx->dr[5],
1951	pCtx->fs.Sel, pCtx->fs.u64Base, pCtx->fs.u32Limit, pCtx->fs.Attr.u, pCtx->dr[6], pCtx->dr[7],
1952	pCtx->gs.Sel, pCtx->gs.u64Base, pCtx->gs.u32Limit, pCtx->gs.Attr.u, pCtx->cr0, pCtx->cr2,
1953	pCtx->ss.Sel, pCtx->ss.u64Base, pCtx->ss.u32Limit, pCtx->ss.Attr.u, pCtx->cr3, pCtx->cr4,
1954	pCtx->gdtr.pGdt, pCtx->gdtr.cbGdt, pCtx->idtr.pIdt, pCtx->idtr.cbIdt, fEFlags,
1955	pCtx->ldtr.Sel, pCtx->ldtr.u64Base, pCtx->ldtr.u32Limit, pCtx->ldtr.Attr.u,
1956	pCtx->tr.Sel, pCtx->tr.u64Base, pCtx->tr.u32Limit, pCtx->tr.Attr.u,
1957	pCtx->SysEnter.cs, pCtx->SysEnter.eip, pCtx->SysEnter.esp));
1958	}
1959
1960	if (fFlags & HM_DUMP_REG_FLAGS_FPU)
1961	{
1962	PCX86FXSTATE pFpuCtx = &pCtx->XState.x87;
1963	Log(("FPU:\n"
1964	"FCW=%04x FSW=%04x FTW=%02x\n"
1965	"FOP=%04x FPUIP=%08x CS=%04x Rsrvd1=%04x\n"
1966	"FPUDP=%04x DS=%04x Rsvrd2=%04x MXCSR=%08x MXCSR_MASK=%08x\n"
1967	,
1968	pFpuCtx->FCW, pFpuCtx->FSW, pFpuCtx->FTW,
1969	pFpuCtx->FOP, pFpuCtx->FPUIP, pFpuCtx->CS, pFpuCtx->Rsrvd1,
1970	pFpuCtx->FPUDP, pFpuCtx->DS, pFpuCtx->Rsrvd2,
1971	pFpuCtx->MXCSR, pFpuCtx->MXCSR_MASK));
1972	NOREF(pFpuCtx);
1973	}
1974
1975	if (fFlags & HM_DUMP_REG_FLAGS_MSRS)
1976	Log(("MSR:\n"
1977	"EFER =%016RX64\n"
1978	"PAT =%016RX64\n"
1979	"STAR =%016RX64\n"
1980	"CSTAR =%016RX64\n"
1981	"LSTAR =%016RX64\n"
1982	"SFMASK =%016RX64\n"
1983	"KERNELGSBASE =%016RX64\n",
1984	pCtx->msrEFER,
1985	pCtx->msrPAT,
1986	pCtx->msrSTAR,
1987	pCtx->msrCSTAR,
1988	pCtx->msrLSTAR,
1989	pCtx->msrSFMASK,
1990	pCtx->msrKERNELGSBASE));
1991	}
1992
1993	#endif /* VBOX_STRICT */
1994

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source: vbox/trunk/src/VBox/VMM/VMMR0/HMR0.cpp@ 101626

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