HMR0.cpp@ 102987

Last change on this file since 102987 was 102987, checked in by vboxsync, 11 months ago
VMM/HM: Nested VMX: bugref:10318 Log host CR0 and a couple of MSRs for split-lock disable status.
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1	/* $Id: HMR0.cpp 102987 2024-01-22 10:07:42Z 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 CR0 value (set by ring-0 VMX init) */
137	uint64_t g_uHmVmxHostCr0;
138	/** VMX: Host CR4 value (set by ring-0 VMX init) */
139	uint64_t g_uHmVmxHostCr4;
140	/** VMX: Host EFER value (set by ring-0 VMX init) */
141	uint64_t g_uHmVmxHostMsrEfer;
142	/** VMX: Host SMM monitor control (used for logging/diagnostics) */
143	uint64_t g_uHmVmxHostSmmMonitorCtl;
144	/** VMX: Host core capabilities (set by ring-0 VMX init) */
145	uint64_t g_uHmVmxHostCoreCap;
146	/** VMX: Host memory control register (set by ring-0 VMX init) */
147	uint64_t g_uHmVmxHostMemoryCtrl;
148
149
150	/** Set if AMD-V is supported by the CPU. */
151	bool g_fHmSvmSupported = false;
152	/** SVM revision. */
153	uint32_t g_uHmSvmRev;
154	/** SVM feature bits from cpuid 0x8000000a */
155	uint32_t g_fHmSvmFeatures;
156
157
158	/** MSRs. */
159	SUPHWVIRTMSRS g_HmMsrs;
160
161	/** Last recorded error code during HM ring-0 init. */
162	static int32_t g_rcHmInit = VINF_SUCCESS;
163
164	/** Per CPU globals. */
165	static HMPHYSCPU g_aHmCpuInfo[RTCPUSET_MAX_CPUS];
166
167	/** Whether we've already initialized all CPUs.
168	* @remarks We could check the EnableAllCpusOnce state, but this is
169	* simpler and hopefully easier to understand. */
170	static bool g_fHmEnabled = false;
171	/** Serialize initialization in HMR0EnableAllCpus. */
172	static RTONCE g_HmEnableAllCpusOnce = RTONCE_INITIALIZER;
173
174
175	/** HM ring-0 operations for VT-x. */
176	static HMR0VTABLE const g_HmR0OpsVmx =
177	{
178	/* .pfnEnterSession = */ VMXR0Enter,
179	/* .pfnThreadCtxCallback = */ VMXR0ThreadCtxCallback,
180	/* .pfnAssertionCallback = */ VMXR0AssertionCallback,
181	/* .pfnExportHostState = */ VMXR0ExportHostState,
182	/* .pfnRunGuestCode = */ VMXR0RunGuestCode,
183	/* .pfnEnableCpu = */ VMXR0EnableCpu,
184	/* .pfnDisableCpu = */ VMXR0DisableCpu,
185	/* .pfnInitVM = */ VMXR0InitVM,
186	/* .pfnTermVM = */ VMXR0TermVM,
187	/* .pfnSetupVM = */ VMXR0SetupVM,
188	};
189
190	/** HM ring-0 operations for AMD-V. */
191	static HMR0VTABLE const g_HmR0OpsSvm =
192	{
193	/* .pfnEnterSession = */ SVMR0Enter,
194	/* .pfnThreadCtxCallback = */ SVMR0ThreadCtxCallback,
195	/* .pfnAssertionCallback = */ SVMR0AssertionCallback,
196	/* .pfnExportHostState = */ SVMR0ExportHostState,
197	/* .pfnRunGuestCode = */ SVMR0RunGuestCode,
198	/* .pfnEnableCpu = */ SVMR0EnableCpu,
199	/* .pfnDisableCpu = */ SVMR0DisableCpu,
200	/* .pfnInitVM = */ SVMR0InitVM,
201	/* .pfnTermVM = */ SVMR0TermVM,
202	/* .pfnSetupVM = */ SVMR0SetupVM,
203	};
204
205
206	/** @name Dummy callback handlers for when neither VT-x nor AMD-V is supported.
207	* @{ */
208
209	static DECLCALLBACK(int) hmR0DummyEnter(PVMCPUCC pVCpu)
210	{
211	RT_NOREF(pVCpu);
212	return VINF_SUCCESS;
213	}
214
215	static DECLCALLBACK(void) hmR0DummyThreadCtxCallback(RTTHREADCTXEVENT enmEvent, PVMCPUCC pVCpu, bool fGlobalInit)
216	{
217	RT_NOREF(enmEvent, pVCpu, fGlobalInit);
218	}
219
220	static DECLCALLBACK(int) hmR0DummyEnableCpu(PHMPHYSCPU pHostCpu, PVMCC pVM, void *pvCpuPage, RTHCPHYS HCPhysCpuPage,
221	bool fEnabledBySystem, PCSUPHWVIRTMSRS pHwvirtMsrs)
222	{
223	RT_NOREF(pHostCpu, pVM, pvCpuPage, HCPhysCpuPage, fEnabledBySystem, pHwvirtMsrs);
224	return VINF_SUCCESS;
225	}
226
227	static DECLCALLBACK(int) hmR0DummyDisableCpu(PHMPHYSCPU pHostCpu, void *pvCpuPage, RTHCPHYS HCPhysCpuPage)
228	{
229	RT_NOREF(pHostCpu, pvCpuPage, HCPhysCpuPage);
230	return VINF_SUCCESS;
231	}
232
233	static DECLCALLBACK(int) hmR0DummyInitVM(PVMCC pVM)
234	{
235	RT_NOREF(pVM);
236	return VINF_SUCCESS;
237	}
238
239	static DECLCALLBACK(int) hmR0DummyTermVM(PVMCC pVM)
240	{
241	RT_NOREF(pVM);
242	return VINF_SUCCESS;
243	}
244
245	static DECLCALLBACK(int) hmR0DummySetupVM(PVMCC pVM)
246	{
247	RT_NOREF(pVM);
248	return VINF_SUCCESS;
249	}
250
251	static DECLCALLBACK(int) hmR0DummyAssertionCallback(PVMCPUCC pVCpu)
252	{
253	RT_NOREF(pVCpu);
254	return VINF_SUCCESS;
255	}
256
257	static DECLCALLBACK(VBOXSTRICTRC) hmR0DummyRunGuestCode(PVMCPUCC pVCpu)
258	{
259	RT_NOREF(pVCpu);
260	return VERR_NOT_SUPPORTED;
261	}
262
263	static DECLCALLBACK(int) hmR0DummyExportHostState(PVMCPUCC pVCpu)
264	{
265	RT_NOREF(pVCpu);
266	return VINF_SUCCESS;
267	}
268
269	/** Dummy ops. */
270	static HMR0VTABLE const g_HmR0OpsDummy =
271	{
272	/* .pfnEnterSession = */ hmR0DummyEnter,
273	/* .pfnThreadCtxCallback = */ hmR0DummyThreadCtxCallback,
274	/* .pfnAssertionCallback = */ hmR0DummyAssertionCallback,
275	/* .pfnExportHostState = */ hmR0DummyExportHostState,
276	/* .pfnRunGuestCode = */ hmR0DummyRunGuestCode,
277	/* .pfnEnableCpu = */ hmR0DummyEnableCpu,
278	/* .pfnDisableCpu = */ hmR0DummyDisableCpu,
279	/* .pfnInitVM = */ hmR0DummyInitVM,
280	/* .pfnTermVM = */ hmR0DummyTermVM,
281	/* .pfnSetupVM = */ hmR0DummySetupVM,
282	};
283
284	/** @} */
285
286
287	/**
288	* Initializes a first return code structure.
289	*
290	* @param pFirstRc The structure to init.
291	*/
292	static void hmR0FirstRcInit(PHMR0FIRSTRC pFirstRc)
293	{
294	pFirstRc->rc = VINF_SUCCESS;
295	pFirstRc->idCpu = NIL_RTCPUID;
296	}
297
298
299	/**
300	* Try set the status code (success ignored).
301	*
302	* @param pFirstRc The first return code structure.
303	* @param rc The status code.
304	*/
305	static void hmR0FirstRcSetStatus(PHMR0FIRSTRC pFirstRc, int rc)
306	{
307	if ( RT_FAILURE(rc)
308	&& ASMAtomicCmpXchgS32(&pFirstRc->rc, rc, VINF_SUCCESS))
309	pFirstRc->idCpu = RTMpCpuId();
310	}
311
312
313	/**
314	* Get the status code of a first return code structure.
315	*
316	* @returns The status code; VINF_SUCCESS or error status, no informational or
317	* warning errors.
318	* @param pFirstRc The first return code structure.
319	*/
320	static int hmR0FirstRcGetStatus(PHMR0FIRSTRC pFirstRc)
321	{
322	return pFirstRc->rc;
323	}
324
325
326	#ifdef VBOX_STRICT
327	# ifndef DEBUG_bird
328	/**
329	* Get the CPU ID on which the failure status code was reported.
330	*
331	* @returns The CPU ID, NIL_RTCPUID if no failure was reported.
332	* @param pFirstRc The first return code structure.
333	*/
334	static RTCPUID hmR0FirstRcGetCpuId(PHMR0FIRSTRC pFirstRc)
335	{
336	return pFirstRc->idCpu;
337	}
338	# endif
339	#endif /* VBOX_STRICT */
340
341
342	/**
343	* Verify if VMX is really usable by entering and exiting VMX root mode.
344	*
345	* @returns VBox status code.
346	* @param uVmxBasicMsr The host's IA32_VMX_BASIC_MSR value.
347	*/
348	static int hmR0InitIntelVerifyVmxUsability(uint64_t uVmxBasicMsr)
349	{
350	/* Allocate a temporary VMXON region. */
351	RTR0MEMOBJ hScatchMemObj;
352	int rc = RTR0MemObjAllocCont(&hScatchMemObj, HOST_PAGE_SIZE, NIL_RTHCPHYS /* PhysHighest /, false / fExecutable */);
353	if (RT_FAILURE(rc))
354	{
355	LogRelFunc(("RTR0MemObjAllocCont(,HOST_PAGE_SIZE,false) -> %Rrc\n", rc));
356	return rc;
357	}
358	void *pvScatchPage = RTR0MemObjAddress(hScatchMemObj);
359	RTHCPHYS const HCPhysScratchPage = RTR0MemObjGetPagePhysAddr(hScatchMemObj, 0);
360	RT_BZERO(pvScatchPage, HOST_PAGE_SIZE);
361
362	/* Set revision dword at the beginning of the VMXON structure. */
363	(uint32_t )pvScatchPage = RT_BF_GET(uVmxBasicMsr, VMX_BF_BASIC_VMCS_ID);
364
365	/* Make sure we don't get rescheduled to another CPU during this probe. */
366	RTCCUINTREG const fEFlags = ASMIntDisableFlags();
367
368	/* Enable CR4.VMXE if it isn't already set. */
369	RTCCUINTREG const uOldCr4 = SUPR0ChangeCR4(X86_CR4_VMXE, RTCCUINTREG_MAX);
370
371	/*
372	* The only way of checking if we're in VMX root mode is to try and enter it.
373	* There is no instruction or control bit that tells us if we're in VMX root mode.
374	* Therefore, try and enter and exit VMX root mode.
375	*/
376	rc = VMXEnable(HCPhysScratchPage);
377	if (RT_SUCCESS(rc))
378	VMXDisable();
379	else
380	{
381	/*
382	* KVM leaves the CPU in VMX root mode. Not only is this not allowed,
383	* it will crash the host when we enter raw mode, because:
384	*
385	* (a) clearing X86_CR4_VMXE in CR4 causes a #GP (we no longer modify
386	* this bit), and
387	* (b) turning off paging causes a #GP (unavoidable when switching
388	* from long to 32 bits mode or 32 bits to PAE).
389	*
390	* They should fix their code, but until they do we simply refuse to run.
391	*/
392	rc = VERR_VMX_IN_VMX_ROOT_MODE;
393	}
394
395	/* Restore CR4.VMXE if it wasn't set prior to us setting it above. */
396	if (!(uOldCr4 & X86_CR4_VMXE))
397	SUPR0ChangeCR4(0 /* fOrMask */, ~(uint64_t)X86_CR4_VMXE);
398
399	/* Restore interrupts. */
400	ASMSetFlags(fEFlags);
401
402	RTR0MemObjFree(hScatchMemObj, false);
403
404	return rc;
405	}
406
407
408	/**
409	* Worker function used by hmR0PowerCallback() and HMR0Init() to initalize VT-x
410	* on a CPU.
411	*
412	* @param idCpu The identifier for the CPU the function is called on.
413	* @param pvUser1 Pointer to the first RC structure.
414	* @param pvUser2 Ignored.
415	*/
416	static DECLCALLBACK(void) hmR0InitIntelCpu(RTCPUID idCpu, void pvUser1, void pvUser2)
417	{
418	PHMR0FIRSTRC pFirstRc = (PHMR0FIRSTRC)pvUser1;
419	Assert(!RTThreadPreemptIsEnabled(NIL_RTTHREAD));
420	Assert(idCpu == (RTCPUID)RTMpCpuIdToSetIndex(idCpu)); /** @todo fix idCpu == index assumption (rainy day) */
421	NOREF(idCpu); NOREF(pvUser2);
422
423	int rc = SUPR0GetVmxUsability(NULL /* pfIsSmxModeAmbiguous */);
424	hmR0FirstRcSetStatus(pFirstRc, rc);
425	}
426
427
428	/**
429	* Intel specific initialization code.
430	*
431	* @returns VBox status code (will only fail if out of memory).
432	*/
433	static int hmR0InitIntel(void)
434	{
435	/* Read this MSR now as it may be useful for error reporting when initializing VT-x fails. */
436	g_HmMsrs.u.vmx.u64FeatCtrl = ASMRdMsr(MSR_IA32_FEATURE_CONTROL);
437
438	/*
439	* First try use native kernel API for controlling VT-x.
440	* (This is only supported by some Mac OS X kernels atm.)
441	*/
442	int rc;
443	g_rcHmInit = rc = SUPR0EnableVTx(true /* fEnable */);
444	g_fHmVmxUsingSUPR0EnableVTx = rc != VERR_NOT_SUPPORTED;
445	if (g_fHmVmxUsingSUPR0EnableVTx)
446	{
447	AssertLogRelMsg(rc == VINF_SUCCESS \|\| rc == VERR_VMX_IN_VMX_ROOT_MODE \|\| rc == VERR_VMX_NO_VMX, ("%Rrc\n", rc));
448	if (RT_SUCCESS(rc))
449	{
450	g_fHmVmxSupported = true;
451	rc = SUPR0EnableVTx(false /* fEnable */);
452	AssertLogRelRC(rc);
453	rc = VINF_SUCCESS;
454	}
455	}
456	else
457	{
458	HMR0FIRSTRC FirstRc;
459	hmR0FirstRcInit(&FirstRc);
460	g_rcHmInit = rc = RTMpOnAll(hmR0InitIntelCpu, &FirstRc, NULL);
461	if (RT_SUCCESS(rc))
462	g_rcHmInit = rc = hmR0FirstRcGetStatus(&FirstRc);
463	}
464
465	if (RT_SUCCESS(rc))
466	{
467	/* Read CR4 and EFER for logging/diagnostic purposes. */
468	g_uHmVmxHostCr0 = ASMGetCR0();
469	g_uHmVmxHostCr4 = ASMGetCR4();
470	g_uHmVmxHostMsrEfer = ASMRdMsr(MSR_K6_EFER);
471
472	/* Get VMX MSRs (and feature control MSR) for determining VMX features we can ultimately use. */
473	SUPR0GetHwvirtMsrs(&g_HmMsrs, SUPVTCAPS_VT_X, false /* fForce */);
474
475	/*
476	* Nested KVM workaround: Intel SDM section 34.15.5 describes that
477	* MSR_IA32_SMM_MONITOR_CTL depends on bit 49 of MSR_IA32_VMX_BASIC while
478	* table 35-2 says that this MSR is available if either VMX or SMX is supported.
479	*/
480	uint64_t const uVmxBasicMsr = g_HmMsrs.u.vmx.u64Basic;
481	if (RT_BF_GET(uVmxBasicMsr, VMX_BF_BASIC_DUAL_MON))
482	g_uHmVmxHostSmmMonitorCtl = ASMRdMsr(MSR_IA32_SMM_MONITOR_CTL);
483
484	/*
485	* Host core and memory capabilities MSRs.
486	* Primarily for logging split-lock disable status.
487	*/
488	uint32_t uDummy, uStdExtFeatEdx;
489	ASMCpuId_Idx_ECX(7, 0, &uDummy, &uDummy, &uDummy, &uStdExtFeatEdx);
490	if (uStdExtFeatEdx & X86_CPUID_STEXT_FEATURE_EDX_CORECAP)
491	{
492	g_uHmVmxHostCoreCap = ASMRdMsr(MSR_IA32_CORE_CAPABILITIES);
493	if (g_uHmVmxHostCoreCap & MSR_IA32_CORE_CAP_SPLIT_LOCK_DISABLE)
494	g_uHmVmxHostMemoryCtrl = ASMRdMsr(MSR_MEMORY_CTRL);
495	}
496
497	/* Initialize VPID - 16 bits ASID. */
498	g_uHmMaxAsid = 0x10000; /* exclusive */
499
500	/*
501	* If the host OS has not enabled VT-x for us, try enter VMX root mode
502	* to really verify if VT-x is usable.
503	*/
504	if (!g_fHmVmxUsingSUPR0EnableVTx)
505	{
506	/*
507	* We don't verify VMX root mode on all CPUs here because the verify
508	* function exits VMX root mode thus potentially allowing other
509	* programs to grab VT-x. Our global init's entering and staying in
510	* VMX root mode (until our module termination) is done later when
511	* the first VM powers up (after module initialization) using
512	* VMMR0_DO_HM_ENABLE which calls HMR0EnableAllCpus().
513	*
514	* This is just a quick sanity check.
515	*/
516	rc = hmR0InitIntelVerifyVmxUsability(uVmxBasicMsr);
517	if (RT_SUCCESS(rc))
518	g_fHmVmxSupported = true;
519	else
520	{
521	g_rcHmInit = rc;
522	Assert(g_fHmVmxSupported == false);
523	}
524	}
525
526	if (g_fHmVmxSupported)
527	{
528	rc = VMXR0GlobalInit();
529	if (RT_SUCCESS(rc))
530	{
531	/*
532	* Install the VT-x methods.
533	*/
534	g_HmR0Ops = g_HmR0OpsVmx;
535
536	/*
537	* Check for the VMX-Preemption Timer and adjust for the "VMX-Preemption
538	* Timer Does Not Count Down at the Rate Specified" CPU erratum.
539	*/
540	if (g_HmMsrs.u.vmx.PinCtls.n.allowed1 & VMX_PIN_CTLS_PREEMPT_TIMER)
541	{
542	g_fHmVmxUsePreemptTimer = true;
543	g_cHmVmxPreemptTimerShift = RT_BF_GET(g_HmMsrs.u.vmx.u64Misc, VMX_BF_MISC_PREEMPT_TIMER_TSC);
544	if (HMIsSubjectToVmxPreemptTimerErratum())
545	g_cHmVmxPreemptTimerShift = 0; /* This is about right most of the time here. */
546	}
547	else
548	g_fHmVmxUsePreemptTimer = false;
549
550	/*
551	* Check for EFER swapping support.
552	*/
553	g_fHmVmxSupportsVmcsEfer = (g_HmMsrs.u.vmx.EntryCtls.n.allowed1 & VMX_ENTRY_CTLS_LOAD_EFER_MSR)
554	&& (g_HmMsrs.u.vmx.ExitCtls.n.allowed1 & VMX_EXIT_CTLS_LOAD_EFER_MSR)
555	&& (g_HmMsrs.u.vmx.ExitCtls.n.allowed1 & VMX_EXIT_CTLS_SAVE_EFER_MSR);
556	}
557	else
558	{
559	g_rcHmInit = rc;
560	g_fHmVmxSupported = false;
561	}
562	}
563	}
564	#ifdef LOG_ENABLED
565	else
566	SUPR0Printf("hmR0InitIntelCpu failed with rc=%Rrc\n", g_rcHmInit);
567	#endif
568	return VINF_SUCCESS;
569	}
570
571
572	/**
573	* Worker function used by hmR0PowerCallback() and HMR0Init() to initalize AMD-V
574	* on a CPU.
575	*
576	* @param idCpu The identifier for the CPU the function is called on.
577	* @param pvUser1 Pointer to the first RC structure.
578	* @param pvUser2 Ignored.
579	*/
580	static DECLCALLBACK(void) hmR0InitAmdCpu(RTCPUID idCpu, void pvUser1, void pvUser2)
581	{
582	PHMR0FIRSTRC pFirstRc = (PHMR0FIRSTRC)pvUser1;
583	Assert(!RTThreadPreemptIsEnabled(NIL_RTTHREAD));
584	Assert(idCpu == (RTCPUID)RTMpCpuIdToSetIndex(idCpu)); /** @todo fix idCpu == index assumption (rainy day) */
585	NOREF(idCpu); NOREF(pvUser2);
586
587	int rc = SUPR0GetSvmUsability(true /* fInitSvm */);
588	hmR0FirstRcSetStatus(pFirstRc, rc);
589	}
590
591
592	/**
593	* AMD-specific initialization code.
594	*
595	* @returns VBox status code (will only fail if out of memory).
596	*/
597	static int hmR0InitAmd(void)
598	{
599	/* Call the global AMD-V initialization routine (should only fail in out-of-memory situations). */
600	int rc = SVMR0GlobalInit();
601	if (RT_SUCCESS(rc))
602	{
603	/*
604	* Install the AMD-V methods.
605	*/
606	g_HmR0Ops = g_HmR0OpsSvm;
607
608	/* Query AMD features. */
609	uint32_t u32Dummy;
610	ASMCpuId(0x8000000a, &g_uHmSvmRev, &g_uHmMaxAsid, &u32Dummy, &g_fHmSvmFeatures);
611
612	/*
613	* We need to check if AMD-V has been properly initialized on all CPUs.
614	* Some BIOSes might do a poor job.
615	*/
616	HMR0FIRSTRC FirstRc;
617	hmR0FirstRcInit(&FirstRc);
618	rc = RTMpOnAll(hmR0InitAmdCpu, &FirstRc, NULL);
619	AssertRC(rc);
620	if (RT_SUCCESS(rc))
621	rc = hmR0FirstRcGetStatus(&FirstRc);
622	#ifndef DEBUG_bird
623	AssertMsg(rc == VINF_SUCCESS \|\| rc == VERR_SVM_IN_USE,
624	("hmR0InitAmdCpu failed for cpu %d with rc=%Rrc\n", hmR0FirstRcGetCpuId(&FirstRc), rc));
625	#endif
626	if (RT_SUCCESS(rc))
627	{
628	SUPR0GetHwvirtMsrs(&g_HmMsrs, SUPVTCAPS_AMD_V, false /* fForce */);
629	g_fHmSvmSupported = true;
630	}
631	else
632	{
633	g_rcHmInit = rc;
634	if (rc == VERR_SVM_DISABLED \|\| rc == VERR_SVM_IN_USE)
635	rc = VINF_SUCCESS; /* Don't fail if AMD-V is disabled or in use. */
636	}
637	}
638	else
639	g_rcHmInit = rc;
640	return rc;
641	}
642
643
644	/**
645	* Does global Ring-0 HM initialization (at module init).
646	*
647	* @returns VBox status code.
648	*/
649	VMMR0_INT_DECL(int) HMR0Init(void)
650	{
651	/*
652	* Initialize the globals.
653	*/
654	g_fHmEnabled = false;
655	for (unsigned i = 0; i < RT_ELEMENTS(g_aHmCpuInfo); i++)
656	{
657	g_aHmCpuInfo[i].idCpu = NIL_RTCPUID;
658	g_aHmCpuInfo[i].hMemObj = NIL_RTR0MEMOBJ;
659	g_aHmCpuInfo[i].HCPhysMemObj = NIL_RTHCPHYS;
660	g_aHmCpuInfo[i].pvMemObj = NULL;
661	#ifdef VBOX_WITH_NESTED_HWVIRT_SVM
662	g_aHmCpuInfo[i].n.svm.hNstGstMsrpm = NIL_RTR0MEMOBJ;
663	g_aHmCpuInfo[i].n.svm.HCPhysNstGstMsrpm = NIL_RTHCPHYS;
664	g_aHmCpuInfo[i].n.svm.pvNstGstMsrpm = NULL;
665	#endif
666	}
667
668	/* Fill in all callbacks with placeholders. */
669	g_HmR0Ops = g_HmR0OpsDummy;
670
671	/* Default is global VT-x/AMD-V init. */
672	g_fHmGlobalInit = true;
673
674	g_fHmVmxSupported = false;
675	g_fHmSvmSupported = false;
676	g_uHmMaxAsid = 0;
677
678	/*
679	* Get host kernel features that HM might need to know in order
680	* to co-operate and function properly with the host OS (e.g. SMAP).
681	*/
682	g_fHmHostKernelFeatures = SUPR0GetKernelFeatures();
683
684	/*
685	* Make sure aCpuInfo is big enough for all the CPUs on this system.
686	*/
687	if (RTMpGetArraySize() > RT_ELEMENTS(g_aHmCpuInfo))
688	{
689	LogRel(("HM: Too many real CPUs/cores/threads - %u, max %u\n", RTMpGetArraySize(), RT_ELEMENTS(g_aHmCpuInfo)));
690	return VERR_TOO_MANY_CPUS;
691	}
692
693	/*
694	* Check for VT-x or AMD-V support.
695	* Return failure only in out-of-memory situations.
696	*/
697	uint32_t fCaps = 0;
698	int rc = SUPR0GetVTSupport(&fCaps);
699	if (RT_SUCCESS(rc))
700	{
701	if (fCaps & SUPVTCAPS_VT_X)
702	rc = hmR0InitIntel();
703	else
704	{
705	Assert(fCaps & SUPVTCAPS_AMD_V);
706	rc = hmR0InitAmd();
707	}
708	if (RT_SUCCESS(rc))
709	{
710	/*
711	* Register notification callbacks that we can use to disable/enable CPUs
712	* when brought offline/online or suspending/resuming.
713	*/
714	if (!g_fHmVmxUsingSUPR0EnableVTx)
715	{
716	rc = RTMpNotificationRegister(hmR0MpEventCallback, NULL);
717	if (RT_SUCCESS(rc))
718	{
719	rc = RTPowerNotificationRegister(hmR0PowerCallback, NULL);
720	if (RT_FAILURE(rc))
721	RTMpNotificationDeregister(hmR0MpEventCallback, NULL);
722	}
723	if (RT_FAILURE(rc))
724	{
725	/* There shouldn't be any per-cpu allocations at this point,
726	so just have to call SVMR0GlobalTerm and VMXR0GlobalTerm. */
727	if (fCaps & SUPVTCAPS_VT_X)
728	VMXR0GlobalTerm();
729	else
730	SVMR0GlobalTerm();
731	g_HmR0Ops = g_HmR0OpsDummy;
732	g_rcHmInit = rc;
733	g_fHmSvmSupported = false;
734	g_fHmVmxSupported = false;
735	}
736	}
737	}
738	}
739	else
740	{
741	g_rcHmInit = rc;
742	rc = VINF_SUCCESS; /* We return success here because module init shall not fail if HM fails to initialize. */
743	}
744	return rc;
745	}
746
747
748	/**
749	* Does global Ring-0 HM termination (at module termination).
750	*
751	* @returns VBox status code (ignored).
752	*/
753	VMMR0_INT_DECL(int) HMR0Term(void)
754	{
755	int rc;
756	if ( g_fHmVmxSupported
757	&& g_fHmVmxUsingSUPR0EnableVTx)
758	{
759	/*
760	* Simple if the host OS manages VT-x.
761	*/
762	Assert(g_fHmGlobalInit);
763
764	if (g_fHmVmxCalledSUPR0EnableVTx)
765	{
766	rc = SUPR0EnableVTx(false /* fEnable */);
767	g_fHmVmxCalledSUPR0EnableVTx = false;
768	}
769	else
770	rc = VINF_SUCCESS;
771
772	for (unsigned iCpu = 0; iCpu < RT_ELEMENTS(g_aHmCpuInfo); iCpu++)
773	{
774	g_aHmCpuInfo[iCpu].fConfigured = false;
775	Assert(g_aHmCpuInfo[iCpu].hMemObj == NIL_RTR0MEMOBJ);
776	}
777	}
778	else
779	{
780	Assert(!g_fHmVmxSupported \|\| !g_fHmVmxUsingSUPR0EnableVTx);
781
782	/* Doesn't really matter if this fails. */
783	RTMpNotificationDeregister(hmR0MpEventCallback, NULL);
784	RTPowerNotificationDeregister(hmR0PowerCallback, NULL);
785	rc = VINF_SUCCESS;
786
787	/*
788	* Disable VT-x/AMD-V on all CPUs if we enabled it before.
789	*/
790	if (g_fHmGlobalInit)
791	{
792	HMR0FIRSTRC FirstRc;
793	hmR0FirstRcInit(&FirstRc);
794	rc = RTMpOnAll(hmR0DisableCpuCallback, NULL /* pvUser 1 */, &FirstRc);
795	Assert(RT_SUCCESS(rc) \|\| rc == VERR_NOT_SUPPORTED);
796	if (RT_SUCCESS(rc))
797	rc = hmR0FirstRcGetStatus(&FirstRc);
798	}
799
800	/*
801	* Free the per-cpu pages used for VT-x and AMD-V.
802	*/
803	for (unsigned i = 0; i < RT_ELEMENTS(g_aHmCpuInfo); i++)
804	{
805	if (g_aHmCpuInfo[i].hMemObj != NIL_RTR0MEMOBJ)
806	{
807	RTR0MemObjFree(g_aHmCpuInfo[i].hMemObj, false);
808	g_aHmCpuInfo[i].hMemObj = NIL_RTR0MEMOBJ;
809	g_aHmCpuInfo[i].HCPhysMemObj = NIL_RTHCPHYS;
810	g_aHmCpuInfo[i].pvMemObj = NULL;
811	}
812	#ifdef VBOX_WITH_NESTED_HWVIRT_SVM
813	if (g_aHmCpuInfo[i].n.svm.hNstGstMsrpm != NIL_RTR0MEMOBJ)
814	{
815	RTR0MemObjFree(g_aHmCpuInfo[i].n.svm.hNstGstMsrpm, false);
816	g_aHmCpuInfo[i].n.svm.hNstGstMsrpm = NIL_RTR0MEMOBJ;
817	g_aHmCpuInfo[i].n.svm.HCPhysNstGstMsrpm = NIL_RTHCPHYS;
818	g_aHmCpuInfo[i].n.svm.pvNstGstMsrpm = NULL;
819	}
820	#endif
821	}
822	}
823
824	/** @todo This needs cleaning up. There's no matching
825	* hmR0TermIntel()/hmR0TermAmd() and all the VT-x/AMD-V specific bits
826	* should move into their respective modules. */
827	/* Finally, call global VT-x/AMD-V termination. */
828	if (g_fHmVmxSupported)
829	VMXR0GlobalTerm();
830	else if (g_fHmSvmSupported)
831	SVMR0GlobalTerm();
832
833	return rc;
834	}
835
836
837	/**
838	* Enable VT-x or AMD-V on the current CPU
839	*
840	* @returns VBox status code.
841	* @param pVM The cross context VM structure. Can be NULL.
842	* @param idCpu The identifier for the CPU the function is called on.
843	*
844	* @remarks Maybe called with interrupts disabled!
845	*/
846	static int hmR0EnableCpu(PVMCC pVM, RTCPUID idCpu)
847	{
848	PHMPHYSCPU pHostCpu = &g_aHmCpuInfo[idCpu];
849
850	Assert(idCpu == (RTCPUID)RTMpCpuIdToSetIndex(idCpu)); /** @todo fix idCpu == index assumption (rainy day) */
851	Assert(idCpu < RT_ELEMENTS(g_aHmCpuInfo));
852	Assert(!pHostCpu->fConfigured);
853	Assert(!RTThreadPreemptIsEnabled(NIL_RTTHREAD));
854
855	pHostCpu->idCpu = idCpu;
856	/* Do NOT reset cTlbFlushes here, see @bugref{6255}. */
857
858	int rc;
859	if ( g_fHmVmxSupported
860	&& g_fHmVmxUsingSUPR0EnableVTx)
861	rc = g_HmR0Ops.pfnEnableCpu(pHostCpu, pVM, NULL /* pvCpuPage */, NIL_RTHCPHYS, true, &g_HmMsrs);
862	else
863	{
864	AssertLogRelMsgReturn(pHostCpu->hMemObj != NIL_RTR0MEMOBJ, ("hmR0EnableCpu failed idCpu=%u.\n", idCpu), VERR_HM_IPE_1);
865	rc = g_HmR0Ops.pfnEnableCpu(pHostCpu, pVM, pHostCpu->pvMemObj, pHostCpu->HCPhysMemObj, false, &g_HmMsrs);
866	}
867	if (RT_SUCCESS(rc))
868	pHostCpu->fConfigured = true;
869	return rc;
870	}
871
872
873	/**
874	* Worker function passed to RTMpOnAll() that is to be called on all CPUs.
875	*
876	* @param idCpu The identifier for the CPU the function is called on.
877	* @param pvUser1 Opaque pointer to the VM (can be NULL!).
878	* @param pvUser2 The 2nd user argument.
879	*/
880	static DECLCALLBACK(void) hmR0EnableCpuCallback(RTCPUID idCpu, void pvUser1, void pvUser2)
881	{
882	PVMCC pVM = (PVMCC)pvUser1; /* can be NULL! */
883	PHMR0FIRSTRC pFirstRc = (PHMR0FIRSTRC)pvUser2;
884	AssertReturnVoid(g_fHmGlobalInit);
885	Assert(!RTThreadPreemptIsEnabled(NIL_RTTHREAD));
886	hmR0FirstRcSetStatus(pFirstRc, hmR0EnableCpu(pVM, idCpu));
887	}
888
889
890	/**
891	* RTOnce callback employed by HMR0EnableAllCpus.
892	*
893	* @returns VBox status code.
894	* @param pvUser Pointer to the VM.
895	*/
896	static DECLCALLBACK(int32_t) hmR0EnableAllCpuOnce(void *pvUser)
897	{
898	PVMCC pVM = (PVMCC)pvUser;
899
900	/*
901	* Indicate that we've initialized.
902	*
903	* Note! There is a potential race between this function and the suspend
904	* notification. Kind of unlikely though, so ignored for now.
905	*/
906	AssertReturn(!g_fHmEnabled, VERR_HM_ALREADY_ENABLED_IPE);
907	ASMAtomicWriteBool(&g_fHmEnabled, true);
908
909	/*
910	* The global init variable is set by the first VM.
911	*/
912	g_fHmGlobalInit = pVM->hm.s.fGlobalInit;
913
914	#ifdef VBOX_STRICT
915	for (unsigned i = 0; i < RT_ELEMENTS(g_aHmCpuInfo); i++)
916	{
917	Assert(g_aHmCpuInfo[i].hMemObj == NIL_RTR0MEMOBJ);
918	Assert(g_aHmCpuInfo[i].HCPhysMemObj == NIL_RTHCPHYS);
919	Assert(g_aHmCpuInfo[i].pvMemObj == NULL);
920	Assert(!g_aHmCpuInfo[i].fConfigured);
921	Assert(!g_aHmCpuInfo[i].cTlbFlushes);
922	Assert(!g_aHmCpuInfo[i].uCurrentAsid);
923	# ifdef VBOX_WITH_NESTED_HWVIRT_SVM
924	Assert(g_aHmCpuInfo[i].n.svm.hNstGstMsrpm == NIL_RTR0MEMOBJ);
925	Assert(g_aHmCpuInfo[i].n.svm.HCPhysNstGstMsrpm == NIL_RTHCPHYS);
926	Assert(g_aHmCpuInfo[i].n.svm.pvNstGstMsrpm == NULL);
927	# endif
928	}
929	#endif
930
931	int rc;
932	if ( g_fHmVmxSupported
933	&& g_fHmVmxUsingSUPR0EnableVTx)
934	{
935	/*
936	* Global VT-x initialization API (only darwin for now).
937	*/
938	rc = SUPR0EnableVTx(true /* fEnable */);
939	if (RT_SUCCESS(rc))
940	{
941	g_fHmVmxCalledSUPR0EnableVTx = true;
942	/* If the host provides a VT-x init API, then we'll rely on that for global init. */
943	g_fHmGlobalInit = pVM->hm.s.fGlobalInit = true;
944	}
945	else
946	AssertMsgFailed(("hmR0EnableAllCpuOnce/SUPR0EnableVTx: rc=%Rrc\n", rc));
947	}
948	else
949	{
950	/*
951	* We're doing the job ourselves.
952	*/
953	/* Allocate one page per cpu for the global VT-x and AMD-V pages */
954	for (unsigned i = 0; i < RT_ELEMENTS(g_aHmCpuInfo); i++)
955	{
956	Assert(g_aHmCpuInfo[i].hMemObj == NIL_RTR0MEMOBJ);
957	#ifdef VBOX_WITH_NESTED_HWVIRT_SVM
958	Assert(g_aHmCpuInfo[i].n.svm.hNstGstMsrpm == NIL_RTR0MEMOBJ);
959	#endif
960	if (RTMpIsCpuPossible(RTMpCpuIdFromSetIndex(i)))
961	{
962	/** @todo NUMA */
963	rc = RTR0MemObjAllocCont(&g_aHmCpuInfo[i].hMemObj, HOST_PAGE_SIZE, NIL_RTHCPHYS /PhysHighest/, false /* executable R0 mapping */);
964	AssertLogRelRCReturn(rc, rc);
965
966	g_aHmCpuInfo[i].HCPhysMemObj = RTR0MemObjGetPagePhysAddr(g_aHmCpuInfo[i].hMemObj, 0);
967	Assert(g_aHmCpuInfo[i].HCPhysMemObj != NIL_RTHCPHYS);
968	Assert(!(g_aHmCpuInfo[i].HCPhysMemObj & HOST_PAGE_OFFSET_MASK));
969
970	g_aHmCpuInfo[i].pvMemObj = RTR0MemObjAddress(g_aHmCpuInfo[i].hMemObj);
971	AssertPtr(g_aHmCpuInfo[i].pvMemObj);
972	RT_BZERO(g_aHmCpuInfo[i].pvMemObj, HOST_PAGE_SIZE);
973
974	#ifdef VBOX_WITH_NESTED_HWVIRT_SVM
975	rc = RTR0MemObjAllocCont(&g_aHmCpuInfo[i].n.svm.hNstGstMsrpm, SVM_MSRPM_PAGES << X86_PAGE_4K_SHIFT,
976	NIL_RTHCPHYS /PhysHighest/, false /* executable R0 mapping */);
977	AssertLogRelRCReturn(rc, rc);
978
979	g_aHmCpuInfo[i].n.svm.HCPhysNstGstMsrpm = RTR0MemObjGetPagePhysAddr(g_aHmCpuInfo[i].n.svm.hNstGstMsrpm, 0);
980	Assert(g_aHmCpuInfo[i].n.svm.HCPhysNstGstMsrpm != NIL_RTHCPHYS);
981	Assert(!(g_aHmCpuInfo[i].n.svm.HCPhysNstGstMsrpm & HOST_PAGE_OFFSET_MASK));
982
983	g_aHmCpuInfo[i].n.svm.pvNstGstMsrpm = RTR0MemObjAddress(g_aHmCpuInfo[i].n.svm.hNstGstMsrpm);
984	AssertPtr(g_aHmCpuInfo[i].n.svm.pvNstGstMsrpm);
985	ASMMemFill32(g_aHmCpuInfo[i].n.svm.pvNstGstMsrpm, SVM_MSRPM_PAGES << X86_PAGE_4K_SHIFT, UINT32_C(0xffffffff));
986	#endif
987	}
988	}
989
990	rc = VINF_SUCCESS;
991	}
992
993	if ( RT_SUCCESS(rc)
994	&& g_fHmGlobalInit)
995	{
996	/*
997	* It's possible we end up here with VMX (and perhaps SVM) not supported, see @bugref{9918}.
998	* In that case, our HMR0 function table contains the dummy placeholder functions which pretend
999	* success. However, we must not pretend success any longer (like we did during HMR0Init called
1000	* during VMMR0 module init) as the HM init error code (g_rcHmInit) should be propagated to
1001	* ring-3 especially since we now have a VM instance.
1002	*/
1003	if ( !g_fHmVmxSupported
1004	&& !g_fHmSvmSupported)
1005	{
1006	Assert(g_HmR0Ops.pfnEnableCpu == hmR0DummyEnableCpu);
1007	Assert(RT_FAILURE(g_rcHmInit));
1008	rc = g_rcHmInit;
1009	}
1010	else
1011	{
1012	/* First time, so initialize each cpu/core. */
1013	HMR0FIRSTRC FirstRc;
1014	hmR0FirstRcInit(&FirstRc);
1015	Assert(g_HmR0Ops.pfnEnableCpu != hmR0DummyEnableCpu);
1016	rc = RTMpOnAll(hmR0EnableCpuCallback, (void *)pVM, &FirstRc);
1017	if (RT_SUCCESS(rc))
1018	rc = hmR0FirstRcGetStatus(&FirstRc);
1019	}
1020	}
1021
1022	return rc;
1023	}
1024
1025
1026	/**
1027	* Sets up HM on all cpus.
1028	*
1029	* @returns VBox status code.
1030	* @param pVM The cross context VM structure.
1031	*/
1032	VMMR0_INT_DECL(int) HMR0EnableAllCpus(PVMCC pVM)
1033	{
1034	/* Make sure we don't touch HM after we've disabled HM in preparation of a suspend. */
1035	if (ASMAtomicReadBool(&g_fHmSuspended))
1036	return VERR_HM_SUSPEND_PENDING;
1037
1038	return RTOnce(&g_HmEnableAllCpusOnce, hmR0EnableAllCpuOnce, pVM);
1039	}
1040
1041
1042	/**
1043	* Disable VT-x or AMD-V on the current CPU.
1044	*
1045	* @returns VBox status code.
1046	* @param idCpu The identifier for the CPU this function is called on.
1047	*
1048	* @remarks Must be called with preemption disabled.
1049	*/
1050	static int hmR0DisableCpu(RTCPUID idCpu)
1051	{
1052	PHMPHYSCPU pHostCpu = &g_aHmCpuInfo[idCpu];
1053
1054	Assert(!g_fHmVmxSupported \|\| !g_fHmVmxUsingSUPR0EnableVTx);
1055	Assert(!RTThreadPreemptIsEnabled(NIL_RTTHREAD));
1056	Assert(idCpu == (RTCPUID)RTMpCpuIdToSetIndex(idCpu)); /** @todo fix idCpu == index assumption (rainy day) */
1057	Assert(idCpu < RT_ELEMENTS(g_aHmCpuInfo));
1058	Assert(!pHostCpu->fConfigured \|\| pHostCpu->hMemObj != NIL_RTR0MEMOBJ);
1059	AssertRelease(idCpu == RTMpCpuId());
1060
1061	if (pHostCpu->hMemObj == NIL_RTR0MEMOBJ)
1062	return pHostCpu->fConfigured ? VERR_NO_MEMORY : VINF_SUCCESS /* not initialized. */;
1063	AssertPtr(pHostCpu->pvMemObj);
1064	Assert(pHostCpu->HCPhysMemObj != NIL_RTHCPHYS);
1065
1066	int rc;
1067	if (pHostCpu->fConfigured)
1068	{
1069	rc = g_HmR0Ops.pfnDisableCpu(pHostCpu, pHostCpu->pvMemObj, pHostCpu->HCPhysMemObj);
1070	AssertRCReturn(rc, rc);
1071
1072	pHostCpu->fConfigured = false;
1073	pHostCpu->idCpu = NIL_RTCPUID;
1074	}
1075	else
1076	rc = VINF_SUCCESS; /* nothing to do */
1077	return rc;
1078	}
1079
1080
1081	/**
1082	* Worker function passed to RTMpOnAll() that is to be called on the target
1083	* CPUs.
1084	*
1085	* @param idCpu The identifier for the CPU the function is called on.
1086	* @param pvUser1 The 1st user argument.
1087	* @param pvUser2 Opaque pointer to the FirstRc.
1088	*/
1089	static DECLCALLBACK(void) hmR0DisableCpuCallback(RTCPUID idCpu, void pvUser1, void pvUser2)
1090	{
1091	PHMR0FIRSTRC pFirstRc = (PHMR0FIRSTRC)pvUser2; NOREF(pvUser1);
1092	AssertReturnVoid(g_fHmGlobalInit);
1093	hmR0FirstRcSetStatus(pFirstRc, hmR0DisableCpu(idCpu));
1094	}
1095
1096
1097	/**
1098	* Worker function passed to RTMpOnSpecific() that is to be called on the target
1099	* CPU.
1100	*
1101	* @param idCpu The identifier for the CPU the function is called on.
1102	* @param pvUser1 Null, not used.
1103	* @param pvUser2 Null, not used.
1104	*/
1105	static DECLCALLBACK(void) hmR0DisableCpuOnSpecificCallback(RTCPUID idCpu, void pvUser1, void pvUser2)
1106	{
1107	NOREF(pvUser1);
1108	NOREF(pvUser2);
1109	hmR0DisableCpu(idCpu);
1110	}
1111
1112
1113	/**
1114	* Callback function invoked when a cpu goes online or offline.
1115	*
1116	* @param enmEvent The Mp event.
1117	* @param idCpu The identifier for the CPU the function is called on.
1118	* @param pvData Opaque data (PVMCC pointer).
1119	*/
1120	static DECLCALLBACK(void) hmR0MpEventCallback(RTMPEVENT enmEvent, RTCPUID idCpu, void *pvData)
1121	{
1122	NOREF(pvData);
1123	Assert(!g_fHmVmxSupported \|\| !g_fHmVmxUsingSUPR0EnableVTx);
1124
1125	/*
1126	* We only care about uninitializing a CPU that is going offline. When a
1127	* CPU comes online, the initialization is done lazily in HMR0Enter().
1128	*/
1129	switch (enmEvent)
1130	{
1131	case RTMPEVENT_OFFLINE:
1132	{
1133	RTTHREADPREEMPTSTATE PreemptState = RTTHREADPREEMPTSTATE_INITIALIZER;
1134	RTThreadPreemptDisable(&PreemptState);
1135	if (idCpu == RTMpCpuId())
1136	{
1137	int rc = hmR0DisableCpu(idCpu);
1138	AssertRC(rc);
1139	RTThreadPreemptRestore(&PreemptState);
1140	}
1141	else
1142	{
1143	RTThreadPreemptRestore(&PreemptState);
1144	RTMpOnSpecific(idCpu, hmR0DisableCpuOnSpecificCallback, NULL /* pvUser1 /, NULL / pvUser2 */);
1145	}
1146	break;
1147	}
1148
1149	default:
1150	break;
1151	}
1152	}
1153
1154
1155	/**
1156	* Called whenever a system power state change occurs.
1157	*
1158	* @param enmEvent The Power event.
1159	* @param pvUser User argument.
1160	*/
1161	static DECLCALLBACK(void) hmR0PowerCallback(RTPOWEREVENT enmEvent, void *pvUser)
1162	{
1163	NOREF(pvUser);
1164	Assert(!g_fHmVmxSupported \|\| !g_fHmVmxUsingSUPR0EnableVTx);
1165
1166	#ifdef LOG_ENABLED
1167	if (enmEvent == RTPOWEREVENT_SUSPEND)
1168	SUPR0Printf("hmR0PowerCallback RTPOWEREVENT_SUSPEND\n");
1169	else
1170	SUPR0Printf("hmR0PowerCallback RTPOWEREVENT_RESUME\n");
1171	#endif
1172
1173	if (enmEvent == RTPOWEREVENT_SUSPEND)
1174	ASMAtomicWriteBool(&g_fHmSuspended, true);
1175
1176	if (g_fHmEnabled)
1177	{
1178	int rc;
1179	HMR0FIRSTRC FirstRc;
1180	hmR0FirstRcInit(&FirstRc);
1181
1182	if (enmEvent == RTPOWEREVENT_SUSPEND)
1183	{
1184	if (g_fHmGlobalInit)
1185	{
1186	/* Turn off VT-x or AMD-V on all CPUs. */
1187	rc = RTMpOnAll(hmR0DisableCpuCallback, NULL /* pvUser 1 */, &FirstRc);
1188	Assert(RT_SUCCESS(rc) \|\| rc == VERR_NOT_SUPPORTED);
1189	}
1190	/* else nothing to do here for the local init case */
1191	}
1192	else
1193	{
1194	/* Reinit the CPUs from scratch as the suspend state might have
1195	messed with the MSRs. (lousy BIOSes as usual) */
1196	if (g_fHmVmxSupported)
1197	rc = RTMpOnAll(hmR0InitIntelCpu, &FirstRc, NULL);
1198	else
1199	rc = RTMpOnAll(hmR0InitAmdCpu, &FirstRc, NULL);
1200	Assert(RT_SUCCESS(rc) \|\| rc == VERR_NOT_SUPPORTED);
1201	if (RT_SUCCESS(rc))
1202	rc = hmR0FirstRcGetStatus(&FirstRc);
1203	#ifdef LOG_ENABLED
1204	if (RT_FAILURE(rc))
1205	SUPR0Printf("hmR0PowerCallback hmR0InitXxxCpu failed with %Rc\n", rc);
1206	#endif
1207	if (g_fHmGlobalInit)
1208	{
1209	/* Turn VT-x or AMD-V back on on all CPUs. */
1210	rc = RTMpOnAll(hmR0EnableCpuCallback, NULL /* pVM /, &FirstRc / output ignored */);
1211	Assert(RT_SUCCESS(rc) \|\| rc == VERR_NOT_SUPPORTED);
1212	}
1213	/* else nothing to do here for the local init case */
1214	}
1215	}
1216
1217	if (enmEvent == RTPOWEREVENT_RESUME)
1218	ASMAtomicWriteBool(&g_fHmSuspended, false);
1219	}
1220
1221
1222	/**
1223	* Does ring-0 per-VM HM initialization.
1224	*
1225	* This will call the CPU specific init. routine which may initialize and allocate
1226	* resources for virtual CPUs.
1227	*
1228	* @returns VBox status code.
1229	* @param pVM The cross context VM structure.
1230	*
1231	* @remarks This is called after HMR3Init(), see vmR3CreateU() and
1232	* vmR3InitRing3().
1233	*/
1234	VMMR0_INT_DECL(int) HMR0InitVM(PVMCC pVM)
1235	{
1236	AssertCompile(sizeof(pVM->hm.s) <= sizeof(pVM->hm.padding));
1237	AssertCompile(sizeof(pVM->hmr0.s) <= sizeof(pVM->hmr0.padding));
1238	AssertCompile(sizeof(pVM->aCpus[0].hm.s) <= sizeof(pVM->aCpus[0].hm.padding));
1239	AssertCompile(sizeof(pVM->aCpus[0].hmr0.s) <= sizeof(pVM->aCpus[0].hmr0.padding));
1240	AssertReturn(pVM, VERR_INVALID_PARAMETER);
1241
1242	/* Make sure we don't touch HM after we've disabled HM in preparation of a suspend. */
1243	if (ASMAtomicReadBool(&g_fHmSuspended))
1244	return VERR_HM_SUSPEND_PENDING;
1245
1246	/*
1247	* Copy globals to the VM structure.
1248	*/
1249	Assert(!(pVM->hm.s.vmx.fSupported && pVM->hm.s.svm.fSupported));
1250	if (pVM->hm.s.vmx.fSupported)
1251	{
1252	pVM->hmr0.s.vmx.fUsePreemptTimer = pVM->hm.s.vmx.fUsePreemptTimerCfg && g_fHmVmxUsePreemptTimer;
1253	pVM->hm.s.vmx.fUsePreemptTimerCfg = pVM->hmr0.s.vmx.fUsePreemptTimer;
1254	pVM->hm.s.vmx.cPreemptTimerShift = g_cHmVmxPreemptTimerShift;
1255	pVM->hm.s.ForR3.vmx.u64HostCr0 = g_uHmVmxHostCr0;
1256	pVM->hm.s.ForR3.vmx.u64HostCr4 = g_uHmVmxHostCr4;
1257	pVM->hm.s.ForR3.vmx.u64HostMsrEfer = g_uHmVmxHostMsrEfer;
1258	pVM->hm.s.ForR3.vmx.u64HostSmmMonitorCtl = g_uHmVmxHostSmmMonitorCtl;
1259	pVM->hm.s.ForR3.vmx.u64HostCoreCap = g_uHmVmxHostCoreCap;
1260	pVM->hm.s.ForR3.vmx.u64HostMemoryCtrl = g_uHmVmxHostMemoryCtrl;
1261	pVM->hm.s.ForR3.vmx.u64HostFeatCtrl = g_HmMsrs.u.vmx.u64FeatCtrl;
1262	HMGetVmxMsrsFromHwvirtMsrs(&g_HmMsrs, &pVM->hm.s.ForR3.vmx.Msrs);
1263	/* If you need to tweak host MSRs for testing VMX R0 code, do it here. */
1264
1265	/* Enable VPID if supported and configured. */
1266	if (g_HmMsrs.u.vmx.ProcCtls2.n.allowed1 & VMX_PROC_CTLS2_VPID)
1267	pVM->hm.s.ForR3.vmx.fVpid = pVM->hmr0.s.vmx.fVpid = pVM->hm.s.vmx.fAllowVpid; /* Can be overridden by CFGM in HMR3Init(). */
1268
1269	/* Use VMCS shadowing if supported. */
1270	pVM->hmr0.s.vmx.fUseVmcsShadowing = pVM->cpum.ro.GuestFeatures.fVmx
1271	&& (g_HmMsrs.u.vmx.ProcCtls2.n.allowed1 & VMX_PROC_CTLS2_VMCS_SHADOWING);
1272	pVM->hm.s.ForR3.vmx.fUseVmcsShadowing = pVM->hmr0.s.vmx.fUseVmcsShadowing;
1273
1274	/* Use the VMCS controls for swapping the EFER MSR if supported. */
1275	pVM->hm.s.ForR3.vmx.fSupportsVmcsEfer = g_fHmVmxSupportsVmcsEfer;
1276
1277	#if 0
1278	/* Enable APIC register virtualization and virtual-interrupt delivery if supported. */
1279	if ( (g_HmMsrs.u.vmx.ProcCtls2.n.allowed1 & VMX_PROC_CTLS2_APIC_REG_VIRT)
1280	&& (g_HmMsrs.u.vmx.ProcCtls2.n.allowed1 & VMX_PROC_CTLS2_VIRT_INTR_DELIVERY))
1281	pVM->hm.s.fVirtApicRegs = true;
1282
1283	/* Enable posted-interrupt processing if supported. */
1284	/** @todo Add and query IPRT API for host OS support for posted-interrupt IPI
1285	* here. */
1286	if ( (g_HmMsrs.u.vmx.PinCtls.n.allowed1 & VMX_PIN_CTLS_POSTED_INT)
1287	&& (g_HmMsrs.u.vmx.ExitCtls.n.allowed1 & VMX_EXIT_CTLS_ACK_EXT_INT))
1288	pVM->hm.s.fPostedIntrs = true;
1289	#endif
1290	}
1291	else if (pVM->hm.s.svm.fSupported)
1292	{
1293	pVM->hm.s.ForR3.svm.u32Rev = g_uHmSvmRev;
1294	pVM->hm.s.ForR3.svm.fFeatures = g_fHmSvmFeatures;
1295	pVM->hm.s.ForR3.svm.u64MsrHwcr = g_HmMsrs.u.svm.u64MsrHwcr;
1296	/* If you need to tweak host MSRs for testing SVM R0 code, do it here. */
1297	}
1298	pVM->hm.s.ForR3.rcInit = g_rcHmInit;
1299	pVM->hm.s.ForR3.uMaxAsid = g_uHmMaxAsid;
1300
1301	/*
1302	* Set default maximum inner loops in ring-0 before returning to ring-3.
1303	* Can be overriden using CFGM.
1304	*/
1305	uint32_t cMaxResumeLoops = pVM->hm.s.cMaxResumeLoopsCfg;
1306	if (!cMaxResumeLoops)
1307	{
1308	cMaxResumeLoops = 1024;
1309	if (RTThreadPreemptIsPendingTrusty())
1310	cMaxResumeLoops = 8192;
1311	}
1312	else if (cMaxResumeLoops > 16384)
1313	cMaxResumeLoops = 16384;
1314	else if (cMaxResumeLoops < 32)
1315	cMaxResumeLoops = 32;
1316	pVM->hm.s.cMaxResumeLoopsCfg = pVM->hmr0.s.cMaxResumeLoops = cMaxResumeLoops;
1317
1318	/*
1319	* Initialize some per-VCPU fields.
1320	*/
1321	for (VMCPUID idCpu = 0; idCpu < pVM->cCpus; idCpu++)
1322	{
1323	PVMCPUCC pVCpu = VMCC_GET_CPU(pVM, idCpu);
1324	pVCpu->hmr0.s.idEnteredCpu = NIL_RTCPUID;
1325	pVCpu->hmr0.s.idLastCpu = NIL_RTCPUID;
1326
1327	/* We'll aways increment this the first time (host uses ASID 0). */
1328	AssertReturn(!pVCpu->hmr0.s.uCurrentAsid, VERR_HM_IPE_3);
1329	}
1330
1331	/*
1332	* Configure defences against spectre and other CPU bugs.
1333	*/
1334	uint32_t fWorldSwitcher = 0;
1335	uint32_t cLastStdLeaf = ASMCpuId_EAX(0);
1336	if (cLastStdLeaf >= 0x00000007 && RTX86IsValidStdRange(cLastStdLeaf))
1337	{
1338	uint32_t uEdx = 0;
1339	ASMCpuIdExSlow(0x00000007, 0, 0, 0, NULL, NULL, NULL, &uEdx);
1340
1341	if (uEdx & X86_CPUID_STEXT_FEATURE_EDX_IBRS_IBPB)
1342	{
1343	if (pVM->hm.s.fIbpbOnVmExit)
1344	fWorldSwitcher \|= HM_WSF_IBPB_EXIT;
1345	if (pVM->hm.s.fIbpbOnVmEntry)
1346	fWorldSwitcher \|= HM_WSF_IBPB_ENTRY;
1347	}
1348	if (uEdx & X86_CPUID_STEXT_FEATURE_EDX_FLUSH_CMD)
1349	{
1350	if (pVM->hm.s.fL1dFlushOnVmEntry)
1351	fWorldSwitcher \|= HM_WSF_L1D_ENTRY;
1352	else if (pVM->hm.s.fL1dFlushOnSched)
1353	fWorldSwitcher \|= HM_WSF_L1D_SCHED;
1354	}
1355	if (uEdx & X86_CPUID_STEXT_FEATURE_EDX_MD_CLEAR)
1356	{
1357	if (pVM->hm.s.fMdsClearOnVmEntry)
1358	fWorldSwitcher \|= HM_WSF_MDS_ENTRY;
1359	else if (pVM->hm.s.fMdsClearOnSched)
1360	fWorldSwitcher \|= HM_WSF_MDS_SCHED;
1361	}
1362	}
1363	for (VMCPUID idCpu = 0; idCpu < pVM->cCpus; idCpu++)
1364	{
1365	PVMCPUCC pVCpu = VMCC_GET_CPU(pVM, idCpu);
1366	pVCpu->hmr0.s.fWorldSwitcher = fWorldSwitcher;
1367	}
1368	pVM->hm.s.ForR3.fWorldSwitcher = fWorldSwitcher;
1369
1370
1371	/*
1372	* Call the hardware specific initialization method.
1373	*/
1374	return g_HmR0Ops.pfnInitVM(pVM);
1375	}
1376
1377
1378	/**
1379	* Does ring-0 per VM HM termination.
1380	*
1381	* @returns VBox status code.
1382	* @param pVM The cross context VM structure.
1383	*/
1384	VMMR0_INT_DECL(int) HMR0TermVM(PVMCC pVM)
1385	{
1386	Log(("HMR0TermVM: %p\n", pVM));
1387	AssertReturn(pVM, VERR_INVALID_PARAMETER);
1388
1389	/*
1390	* Call the hardware specific method.
1391	*
1392	* Note! We might be preparing for a suspend, so the pfnTermVM() functions should probably not
1393	* mess with VT-x/AMD-V features on the CPU, currently all they do is free memory so this is safe.
1394	*/
1395	return g_HmR0Ops.pfnTermVM(pVM);
1396	}
1397
1398
1399	/**
1400	* Sets up a VT-x or AMD-V session.
1401	*
1402	* This is mostly about setting up the hardware VM state.
1403	*
1404	* @returns VBox status code.
1405	* @param pVM The cross context VM structure.
1406	*/
1407	VMMR0_INT_DECL(int) HMR0SetupVM(PVMCC pVM)
1408	{
1409	Log(("HMR0SetupVM: %p\n", pVM));
1410	AssertReturn(pVM, VERR_INVALID_PARAMETER);
1411
1412	/* Make sure we don't touch HM after we've disabled HM in preparation of a suspend. */
1413	AssertReturn(!ASMAtomicReadBool(&g_fHmSuspended), VERR_HM_SUSPEND_PENDING);
1414
1415	/* On first entry we'll sync everything. */
1416	VMCC_FOR_EACH_VMCPU_STMT(pVM, pVCpu->hm.s.fCtxChanged \|= HM_CHANGED_HOST_CONTEXT \| HM_CHANGED_ALL_GUEST);
1417
1418	/*
1419	* Call the hardware specific setup VM method. This requires the CPU to be
1420	* enabled for AMD-V/VT-x and preemption to be prevented.
1421	*/
1422	RTTHREADPREEMPTSTATE PreemptState = RTTHREADPREEMPTSTATE_INITIALIZER;
1423	RTThreadPreemptDisable(&PreemptState);
1424	RTCPUID const idCpu = RTMpCpuId();
1425
1426	/* Enable VT-x or AMD-V if local init is required. */
1427	int rc;
1428	if (!g_fHmGlobalInit)
1429	{
1430	Assert(!g_fHmVmxSupported \|\| !g_fHmVmxUsingSUPR0EnableVTx);
1431	rc = hmR0EnableCpu(pVM, idCpu);
1432	if (RT_FAILURE(rc))
1433	{
1434	RTThreadPreemptRestore(&PreemptState);
1435	return rc;
1436	}
1437	}
1438
1439	/* Setup VT-x or AMD-V. */
1440	rc = g_HmR0Ops.pfnSetupVM(pVM);
1441
1442	/* Disable VT-x or AMD-V if local init was done before. */
1443	if (!g_fHmGlobalInit)
1444	{
1445	Assert(!g_fHmVmxSupported \|\| !g_fHmVmxUsingSUPR0EnableVTx);
1446	int rc2 = hmR0DisableCpu(idCpu);
1447	AssertRC(rc2);
1448	}
1449
1450	RTThreadPreemptRestore(&PreemptState);
1451	return rc;
1452	}
1453
1454
1455	/**
1456	* Notification callback before an assertion longjump and guru mediation.
1457	*
1458	* @returns VBox status code.
1459	* @param pVCpu The cross context virtual CPU structure.
1460	* @param pvUser User argument, currently unused, NULL.
1461	*/
1462	static DECLCALLBACK(int) hmR0AssertionCallback(PVMCPUCC pVCpu, void *pvUser)
1463	{
1464	RT_NOREF(pvUser);
1465	Assert(pVCpu);
1466	Assert(g_HmR0Ops.pfnAssertionCallback);
1467	return g_HmR0Ops.pfnAssertionCallback(pVCpu);
1468	}
1469
1470
1471	/**
1472	* Turns on HM on the CPU if necessary and initializes the bare minimum state
1473	* required for entering HM context.
1474	*
1475	* @returns VBox status code.
1476	* @param pVCpu The cross context virtual CPU structure.
1477	*
1478	* @remarks No-long-jump zone!!!
1479	*/
1480	VMMR0_INT_DECL(int) hmR0EnterCpu(PVMCPUCC pVCpu)
1481	{
1482	Assert(!RTThreadPreemptIsEnabled(NIL_RTTHREAD));
1483
1484	int rc = VINF_SUCCESS;
1485	RTCPUID const idCpu = RTMpCpuId();
1486	PHMPHYSCPU pHostCpu = &g_aHmCpuInfo[idCpu];
1487	AssertPtr(pHostCpu);
1488
1489	/* Enable VT-x or AMD-V if local init is required, or enable if it's a freshly onlined CPU. */
1490	if (!pHostCpu->fConfigured)
1491	rc = hmR0EnableCpu(pVCpu->CTX_SUFF(pVM), idCpu);
1492
1493	/* Register a callback to fire prior to performing a longjmp to ring-3 so HM can disable VT-x/AMD-V if needed. */
1494	VMMR0AssertionSetNotification(pVCpu, hmR0AssertionCallback, NULL /pvUser/);
1495
1496	/* Reload host-state (back from ring-3/migrated CPUs) and shared guest/host bits. */
1497	if (g_fHmVmxSupported)
1498	pVCpu->hm.s.fCtxChanged \|= HM_CHANGED_HOST_CONTEXT \| HM_CHANGED_VMX_HOST_GUEST_SHARED_STATE;
1499	else
1500	pVCpu->hm.s.fCtxChanged \|= HM_CHANGED_HOST_CONTEXT \| HM_CHANGED_SVM_HOST_GUEST_SHARED_STATE;
1501
1502	Assert(pHostCpu->idCpu == idCpu && pHostCpu->idCpu != NIL_RTCPUID);
1503	pVCpu->hmr0.s.idEnteredCpu = idCpu;
1504	return rc;
1505	}
1506
1507
1508	/**
1509	* Enters the VT-x or AMD-V session.
1510	*
1511	* @returns VBox status code.
1512	* @param pVCpu The cross context virtual CPU structure.
1513	*
1514	* @remarks This is called with preemption disabled.
1515	*/
1516	VMMR0_INT_DECL(int) HMR0Enter(PVMCPUCC pVCpu)
1517	{
1518	/* Make sure we can't enter a session after we've disabled HM in preparation of a suspend. */
1519	AssertReturn(!ASMAtomicReadBool(&g_fHmSuspended), VERR_HM_SUSPEND_PENDING);
1520	Assert(!RTThreadPreemptIsEnabled(NIL_RTTHREAD));
1521
1522	/* Load the bare minimum state required for entering HM. */
1523	int rc = hmR0EnterCpu(pVCpu);
1524	if (RT_SUCCESS(rc))
1525	{
1526	if (g_fHmVmxSupported)
1527	Assert( (pVCpu->hm.s.fCtxChanged & (HM_CHANGED_HOST_CONTEXT \| HM_CHANGED_VMX_HOST_GUEST_SHARED_STATE))
1528	== (HM_CHANGED_HOST_CONTEXT \| HM_CHANGED_VMX_HOST_GUEST_SHARED_STATE));
1529	else
1530	Assert( (pVCpu->hm.s.fCtxChanged & (HM_CHANGED_HOST_CONTEXT \| HM_CHANGED_SVM_HOST_GUEST_SHARED_STATE))
1531	== (HM_CHANGED_HOST_CONTEXT \| HM_CHANGED_SVM_HOST_GUEST_SHARED_STATE));
1532
1533	/* Keep track of the CPU owning the VMCS for debugging scheduling weirdness and ring-3 calls. */
1534	rc = g_HmR0Ops.pfnEnterSession(pVCpu);
1535	AssertMsgRCReturnStmt(rc, ("rc=%Rrc pVCpu=%p\n", rc, pVCpu), pVCpu->hmr0.s.idEnteredCpu = NIL_RTCPUID, rc);
1536
1537	/* Exports the host-state as we may be resuming code after a longjmp and quite
1538	possibly now be scheduled on a different CPU. */
1539	rc = g_HmR0Ops.pfnExportHostState(pVCpu);
1540	AssertMsgRCReturnStmt(rc, ("rc=%Rrc pVCpu=%p\n", rc, pVCpu), pVCpu->hmr0.s.idEnteredCpu = NIL_RTCPUID, rc);
1541	}
1542	return rc;
1543	}
1544
1545
1546	/**
1547	* Deinitializes the bare minimum state used for HM context and if necessary
1548	* disable HM on the CPU.
1549	*
1550	* @returns VBox status code.
1551	* @param pVCpu The cross context virtual CPU structure.
1552	*
1553	* @remarks No-long-jump zone!!!
1554	*/
1555	VMMR0_INT_DECL(int) HMR0LeaveCpu(PVMCPUCC pVCpu)
1556	{
1557	Assert(!RTThreadPreemptIsEnabled(NIL_RTTHREAD));
1558	VMCPU_ASSERT_EMT_RETURN(pVCpu, VERR_HM_WRONG_CPU);
1559
1560	RTCPUID const idCpu = RTMpCpuId();
1561	PCHMPHYSCPU pHostCpu = &g_aHmCpuInfo[idCpu];
1562
1563	if ( !g_fHmGlobalInit
1564	&& pHostCpu->fConfigured)
1565	{
1566	int rc = hmR0DisableCpu(idCpu);
1567	AssertRCReturn(rc, rc);
1568	Assert(!pHostCpu->fConfigured);
1569	Assert(pHostCpu->idCpu == NIL_RTCPUID);
1570
1571	/* For obtaining a non-zero ASID/VPID on next re-entry. */
1572	pVCpu->hmr0.s.idLastCpu = NIL_RTCPUID;
1573	}
1574
1575	/* Clear it while leaving HM context, hmPokeCpuForTlbFlush() relies on this. */
1576	pVCpu->hmr0.s.idEnteredCpu = NIL_RTCPUID;
1577
1578	/* De-register the longjmp-to-ring 3 callback now that we have reliquished hardware resources. */
1579	VMMR0AssertionRemoveNotification(pVCpu);
1580	return VINF_SUCCESS;
1581	}
1582
1583
1584	/**
1585	* Thread-context hook for HM.
1586	*
1587	* This is used together with RTThreadCtxHookCreate() on platforms which
1588	* supports it, and directly from VMMR0EmtPrepareForBlocking() and
1589	* VMMR0EmtResumeAfterBlocking() on platforms which don't.
1590	*
1591	* @param enmEvent The thread-context event.
1592	* @param pvUser Opaque pointer to the VMCPU.
1593	*/
1594	VMMR0_INT_DECL(void) HMR0ThreadCtxCallback(RTTHREADCTXEVENT enmEvent, void *pvUser)
1595	{
1596	PVMCPUCC pVCpu = (PVMCPUCC)pvUser;
1597	Assert(pVCpu);
1598	Assert(g_HmR0Ops.pfnThreadCtxCallback);
1599
1600	g_HmR0Ops.pfnThreadCtxCallback(enmEvent, pVCpu, g_fHmGlobalInit);
1601	}
1602
1603
1604	/**
1605	* Runs guest code in a hardware accelerated VM.
1606	*
1607	* @returns Strict VBox status code. (VBOXSTRICTRC isn't used because it's
1608	* called from setjmp assembly.)
1609	* @param pVM The cross context VM structure.
1610	* @param pVCpu The cross context virtual CPU structure.
1611	*
1612	* @remarks Can be called with preemption enabled if thread-context hooks are
1613	* used!!!
1614	*/
1615	VMMR0_INT_DECL(int) HMR0RunGuestCode(PVMCC pVM, PVMCPUCC pVCpu)
1616	{
1617	RT_NOREF(pVM);
1618
1619	#ifdef VBOX_STRICT
1620	/* With thread-context hooks we would be running this code with preemption enabled. */
1621	if (!RTThreadPreemptIsEnabled(NIL_RTTHREAD))
1622	{
1623	PCHMPHYSCPU pHostCpu = &g_aHmCpuInfo[RTMpCpuId()];
1624	Assert(!VMCPU_FF_IS_ANY_SET(pVCpu, VMCPU_FF_PGM_SYNC_CR3 \| VMCPU_FF_PGM_SYNC_CR3_NON_GLOBAL));
1625	Assert(pHostCpu->fConfigured);
1626	AssertReturn(!ASMAtomicReadBool(&g_fHmSuspended), VERR_HM_SUSPEND_PENDING);
1627	}
1628	#endif
1629
1630	VBOXSTRICTRC rcStrict = g_HmR0Ops.pfnRunGuestCode(pVCpu);
1631	return VBOXSTRICTRC_VAL(rcStrict);
1632	}
1633
1634
1635	/**
1636	* Notification from CPUM that it has unloaded the guest FPU/SSE/AVX state from
1637	* the host CPU and that guest access to it must be intercepted.
1638	*
1639	* @param pVCpu The cross context virtual CPU structure of the calling EMT.
1640	*/
1641	VMMR0_INT_DECL(void) HMR0NotifyCpumUnloadedGuestFpuState(PVMCPUCC pVCpu)
1642	{
1643	ASMAtomicUoOrU64(&pVCpu->hm.s.fCtxChanged, HM_CHANGED_GUEST_CR0);
1644	}
1645
1646
1647	/**
1648	* Notification from CPUM that it has modified the host CR0 (because of FPU).
1649	*
1650	* @param pVCpu The cross context virtual CPU structure of the calling EMT.
1651	*/
1652	VMMR0_INT_DECL(void) HMR0NotifyCpumModifiedHostCr0(PVMCPUCC pVCpu)
1653	{
1654	ASMAtomicUoOrU64(&pVCpu->hm.s.fCtxChanged, HM_CHANGED_HOST_CONTEXT);
1655	}
1656
1657
1658	/**
1659	* Returns suspend status of the host.
1660	*
1661	* @returns Suspend pending or not.
1662	*/
1663	VMMR0_INT_DECL(bool) HMR0SuspendPending(void)
1664	{
1665	return ASMAtomicReadBool(&g_fHmSuspended);
1666	}
1667
1668
1669	/**
1670	* Invalidates a guest page from the host TLB.
1671	*
1672	* @param pVCpu The cross context virtual CPU structure.
1673	* @param GCVirt Page to invalidate.
1674	*/
1675	VMMR0_INT_DECL(int) HMR0InvalidatePage(PVMCPUCC pVCpu, RTGCPTR GCVirt)
1676	{
1677	PVMCC pVM = pVCpu->CTX_SUFF(pVM);
1678	if (pVM->hm.s.vmx.fSupported)
1679	return VMXR0InvalidatePage(pVCpu, GCVirt);
1680	return SVMR0InvalidatePage(pVCpu, GCVirt);
1681	}
1682
1683
1684	/**
1685	* Returns the cpu structure for the current cpu.
1686	* Keep in mind that there is no guarantee it will stay the same (long jumps to ring 3!!!).
1687	*
1688	* @returns The cpu structure pointer.
1689	*/
1690	VMMR0_INT_DECL(PHMPHYSCPU) hmR0GetCurrentCpu(void)
1691	{
1692	Assert(!RTThreadPreemptIsEnabled(NIL_RTTHREAD));
1693	RTCPUID const idCpu = RTMpCpuId();
1694	Assert(idCpu < RT_ELEMENTS(g_aHmCpuInfo));
1695	return &g_aHmCpuInfo[idCpu];
1696	}
1697
1698
1699	/**
1700	* Interface for importing state on demand (used by IEM).
1701	*
1702	* @returns VBox status code.
1703	* @param pVCpu The cross context CPU structure.
1704	* @param fWhat What to import, CPUMCTX_EXTRN_XXX.
1705	*/
1706	VMMR0_INT_DECL(int) HMR0ImportStateOnDemand(PVMCPUCC pVCpu, uint64_t fWhat)
1707	{
1708	if (pVCpu->CTX_SUFF(pVM)->hm.s.vmx.fSupported)
1709	return VMXR0ImportStateOnDemand(pVCpu, fWhat);
1710	return SVMR0ImportStateOnDemand(pVCpu, fWhat);
1711	}
1712
1713
1714	/**
1715	* Gets HM VM-exit auxiliary information.
1716	*
1717	* @returns VBox status code.
1718	* @param pVCpu The cross context CPU structure.
1719	* @param pHmExitAux Where to store the auxiliary info.
1720	* @param fWhat What to get, see HMVMX_READ_XXX. This is ignored/unused
1721	* on AMD-V.
1722	*
1723	* @remarks Currently this works only when executing a nested-guest using
1724	* hardware-assisted execution as it's where the auxiliary information is
1725	* required outside of HM. In the future we can make this available while
1726	* executing a regular (non-nested) guest if necessary.
1727	*/
1728	VMMR0_INT_DECL(int) HMR0GetExitAuxInfo(PVMCPUCC pVCpu, PHMEXITAUX pHmExitAux, uint32_t fWhat)
1729	{
1730	Assert(pHmExitAux);
1731	Assert(!(fWhat & ~HMVMX_READ_VALID_MASK));
1732	if (pVCpu->CTX_SUFF(pVM)->hm.s.vmx.fSupported)
1733	return VMXR0GetExitAuxInfo(pVCpu, &pHmExitAux->Vmx, fWhat);
1734	return SVMR0GetExitAuxInfo(pVCpu, &pHmExitAux->Svm);
1735	}
1736
1737
1738	#ifdef VBOX_STRICT
1739
1740	/**
1741	* Dumps a descriptor.
1742	*
1743	* @param pDesc Descriptor to dump.
1744	* @param Sel The selector.
1745	* @param pszSel The name of the selector.
1746	*/
1747	VMMR0_INT_DECL(void) hmR0DumpDescriptor(PCX86DESCHC pDesc, RTSEL Sel, const char *pszSel)
1748	{
1749	/*
1750	* Make variable description string.
1751	*/
1752	static struct
1753	{
1754	unsigned cch;
1755	const char *psz;
1756	} const s_aTypes[32] =
1757	{
1758	# define STRENTRY(str) { sizeof(str) - 1, str }
1759
1760	/* system */
1761	# if HC_ARCH_BITS == 64
1762	STRENTRY("Reserved0 "), /* 0x00 */
1763	STRENTRY("Reserved1 "), /* 0x01 */
1764	STRENTRY("LDT "), /* 0x02 */
1765	STRENTRY("Reserved3 "), /* 0x03 */
1766	STRENTRY("Reserved4 "), /* 0x04 */
1767	STRENTRY("Reserved5 "), /* 0x05 */
1768	STRENTRY("Reserved6 "), /* 0x06 */
1769	STRENTRY("Reserved7 "), /* 0x07 */
1770	STRENTRY("Reserved8 "), /* 0x08 */
1771	STRENTRY("TSS64Avail "), /* 0x09 */
1772	STRENTRY("ReservedA "), /* 0x0a */
1773	STRENTRY("TSS64Busy "), /* 0x0b */
1774	STRENTRY("Call64 "), /* 0x0c */
1775	STRENTRY("ReservedD "), /* 0x0d */
1776	STRENTRY("Int64 "), /* 0x0e */
1777	STRENTRY("Trap64 "), /* 0x0f */
1778	# else
1779	STRENTRY("Reserved0 "), /* 0x00 */
1780	STRENTRY("TSS16Avail "), /* 0x01 */
1781	STRENTRY("LDT "), /* 0x02 */
1782	STRENTRY("TSS16Busy "), /* 0x03 */
1783	STRENTRY("Call16 "), /* 0x04 */
1784	STRENTRY("Task "), /* 0x05 */
1785	STRENTRY("Int16 "), /* 0x06 */
1786	STRENTRY("Trap16 "), /* 0x07 */
1787	STRENTRY("Reserved8 "), /* 0x08 */
1788	STRENTRY("TSS32Avail "), /* 0x09 */
1789	STRENTRY("ReservedA "), /* 0x0a */
1790	STRENTRY("TSS32Busy "), /* 0x0b */
1791	STRENTRY("Call32 "), /* 0x0c */
1792	STRENTRY("ReservedD "), /* 0x0d */
1793	STRENTRY("Int32 "), /* 0x0e */
1794	STRENTRY("Trap32 "), /* 0x0f */
1795	# endif
1796	/* non system */
1797	STRENTRY("DataRO "), /* 0x10 */
1798	STRENTRY("DataRO Accessed "), /* 0x11 */
1799	STRENTRY("DataRW "), /* 0x12 */
1800	STRENTRY("DataRW Accessed "), /* 0x13 */
1801	STRENTRY("DataDownRO "), /* 0x14 */
1802	STRENTRY("DataDownRO Accessed "), /* 0x15 */
1803	STRENTRY("DataDownRW "), /* 0x16 */
1804	STRENTRY("DataDownRW Accessed "), /* 0x17 */
1805	STRENTRY("CodeEO "), /* 0x18 */
1806	STRENTRY("CodeEO Accessed "), /* 0x19 */
1807	STRENTRY("CodeER "), /* 0x1a */
1808	STRENTRY("CodeER Accessed "), /* 0x1b */
1809	STRENTRY("CodeConfEO "), /* 0x1c */
1810	STRENTRY("CodeConfEO Accessed "), /* 0x1d */
1811	STRENTRY("CodeConfER "), /* 0x1e */
1812	STRENTRY("CodeConfER Accessed ") /* 0x1f */
1813	# undef SYSENTRY
1814	};
1815	# define ADD_STR(psz, pszAdd) do { strcpy(psz, pszAdd); psz += strlen(pszAdd); } while (0)
1816	char szMsg[128];
1817	char *psz = &szMsg[0];
1818	unsigned i = pDesc->Gen.u1DescType << 4 \| pDesc->Gen.u4Type;
1819	memcpy(psz, s_aTypes[i].psz, s_aTypes[i].cch);
1820	psz += s_aTypes[i].cch;
1821
1822	if (pDesc->Gen.u1Present)
1823	ADD_STR(psz, "Present ");
1824	else
1825	ADD_STR(psz, "Not-Present ");
1826	# if HC_ARCH_BITS == 64
1827	if (pDesc->Gen.u1Long)
1828	ADD_STR(psz, "64-bit ");
1829	else
1830	ADD_STR(psz, "Comp ");
1831	# else
1832	if (pDesc->Gen.u1Granularity)
1833	ADD_STR(psz, "Page ");
1834	if (pDesc->Gen.u1DefBig)
1835	ADD_STR(psz, "32-bit ");
1836	else
1837	ADD_STR(psz, "16-bit ");
1838	# endif
1839	# undef ADD_STR
1840	*psz = '\0';
1841
1842	/*
1843	* Limit and Base and format the output.
1844	*/
1845	#ifdef LOG_ENABLED
1846	uint32_t u32Limit = X86DESC_LIMIT_G(pDesc);
1847
1848	# if HC_ARCH_BITS == 64
1849	uint64_t const u64Base = X86DESC64_BASE(pDesc);
1850	Log((" %s { %#04x - %#RX64 %#RX64 - base=%#RX64 limit=%#08x dpl=%d } %s\n", pszSel,
1851	Sel, pDesc->au64[0], pDesc->au64[1], u64Base, u32Limit, pDesc->Gen.u2Dpl, szMsg));
1852	# else
1853	uint32_t const u32Base = X86DESC_BASE(pDesc);
1854	Log((" %s { %#04x - %#08x %#08x - base=%#08x limit=%#08x dpl=%d } %s\n", pszSel,
1855	Sel, pDesc->au32[0], pDesc->au32[1], u32Base, u32Limit, pDesc->Gen.u2Dpl, szMsg));
1856	# endif
1857	#else
1858	NOREF(Sel); NOREF(pszSel);
1859	#endif
1860	}
1861
1862
1863	/**
1864	* Formats a full register dump.
1865	*
1866	* @param pVCpu The cross context virtual CPU structure.
1867	* @param fFlags The dumping flags (HM_DUMP_REG_FLAGS_XXX).
1868	*/
1869	VMMR0_INT_DECL(void) hmR0DumpRegs(PVMCPUCC pVCpu, uint32_t fFlags)
1870	{
1871	/*
1872	* Format the flags.
1873	*/
1874	static struct
1875	{
1876	const char *pszSet;
1877	const char *pszClear;
1878	uint32_t fFlag;
1879	} const s_aFlags[] =
1880	{
1881	{ "vip", NULL, X86_EFL_VIP },
1882	{ "vif", NULL, X86_EFL_VIF },
1883	{ "ac", NULL, X86_EFL_AC },
1884	{ "vm", NULL, X86_EFL_VM },
1885	{ "rf", NULL, X86_EFL_RF },
1886	{ "nt", NULL, X86_EFL_NT },
1887	{ "ov", "nv", X86_EFL_OF },
1888	{ "dn", "up", X86_EFL_DF },
1889	{ "ei", "di", X86_EFL_IF },
1890	{ "tf", NULL, X86_EFL_TF },
1891	{ "nt", "pl", X86_EFL_SF },
1892	{ "nz", "zr", X86_EFL_ZF },
1893	{ "ac", "na", X86_EFL_AF },
1894	{ "po", "pe", X86_EFL_PF },
1895	{ "cy", "nc", X86_EFL_CF },
1896	};
1897	char szEFlags[80];
1898	char *psz = szEFlags;
1899	PCCPUMCTX pCtx = &pVCpu->cpum.GstCtx;
1900	uint32_t fEFlags = pCtx->eflags.u;
1901	for (unsigned i = 0; i < RT_ELEMENTS(s_aFlags); i++)
1902	{
1903	const char *pszAdd = s_aFlags[i].fFlag & fEFlags ? s_aFlags[i].pszSet : s_aFlags[i].pszClear;
1904	if (pszAdd)
1905	{
1906	strcpy(psz, pszAdd);
1907	psz += strlen(pszAdd);
1908	*psz++ = ' ';
1909	}
1910	}
1911	psz[-1] = '\0';
1912
1913	if (fFlags & HM_DUMP_REG_FLAGS_GPRS)
1914	{
1915	/*
1916	* Format the registers.
1917	*/
1918	if (CPUMIsGuestIn64BitCode(pVCpu))
1919	Log(("rax=%016RX64 rbx=%016RX64 rcx=%016RX64 rdx=%016RX64\n"
1920	"rsi=%016RX64 rdi=%016RX64 r8 =%016RX64 r9 =%016RX64\n"
1921	"r10=%016RX64 r11=%016RX64 r12=%016RX64 r13=%016RX64\n"
1922	"r14=%016RX64 r15=%016RX64\n"
1923	"rip=%016RX64 rsp=%016RX64 rbp=%016RX64 iopl=%d %*s\n"
1924	"cs={%04x base=%016RX64 limit=%08x flags=%08x}\n"
1925	"ds={%04x base=%016RX64 limit=%08x flags=%08x}\n"
1926	"es={%04x base=%016RX64 limit=%08x flags=%08x}\n"
1927	"fs={%04x base=%016RX64 limit=%08x flags=%08x}\n"
1928	"gs={%04x base=%016RX64 limit=%08x flags=%08x}\n"
1929	"ss={%04x base=%016RX64 limit=%08x flags=%08x}\n"
1930	"cr0=%016RX64 cr2=%016RX64 cr3=%016RX64 cr4=%016RX64\n"
1931	"dr0=%016RX64 dr1=%016RX64 dr2=%016RX64 dr3=%016RX64\n"
1932	"dr4=%016RX64 dr5=%016RX64 dr6=%016RX64 dr7=%016RX64\n"
1933	"gdtr=%016RX64:%04x idtr=%016RX64:%04x eflags=%08x\n"
1934	"ldtr={%04x base=%08RX64 limit=%08x flags=%08x}\n"
1935	"tr ={%04x base=%08RX64 limit=%08x flags=%08x}\n"
1936	"SysEnter={cs=%04llx eip=%08llx esp=%08llx}\n"
1937	,
1938	pCtx->rax, pCtx->rbx, pCtx->rcx, pCtx->rdx, pCtx->rsi, pCtx->rdi,
1939	pCtx->r8, pCtx->r9, pCtx->r10, pCtx->r11, pCtx->r12, pCtx->r13,
1940	pCtx->r14, pCtx->r15,
1941	pCtx->rip, pCtx->rsp, pCtx->rbp, X86_EFL_GET_IOPL(fEFlags), 31, szEFlags,
1942	pCtx->cs.Sel, pCtx->cs.u64Base, pCtx->cs.u32Limit, pCtx->cs.Attr.u,
1943	pCtx->ds.Sel, pCtx->ds.u64Base, pCtx->ds.u32Limit, pCtx->ds.Attr.u,
1944	pCtx->es.Sel, pCtx->es.u64Base, pCtx->es.u32Limit, pCtx->es.Attr.u,
1945	pCtx->fs.Sel, pCtx->fs.u64Base, pCtx->fs.u32Limit, pCtx->fs.Attr.u,
1946	pCtx->gs.Sel, pCtx->gs.u64Base, pCtx->gs.u32Limit, pCtx->gs.Attr.u,
1947	pCtx->ss.Sel, pCtx->ss.u64Base, pCtx->ss.u32Limit, pCtx->ss.Attr.u,
1948	pCtx->cr0, pCtx->cr2, pCtx->cr3, pCtx->cr4,
1949	pCtx->dr[0], pCtx->dr[1], pCtx->dr[2], pCtx->dr[3],
1950	pCtx->dr[4], pCtx->dr[5], pCtx->dr[6], pCtx->dr[7],
1951	pCtx->gdtr.pGdt, pCtx->gdtr.cbGdt, pCtx->idtr.pIdt, pCtx->idtr.cbIdt, fEFlags,
1952	pCtx->ldtr.Sel, pCtx->ldtr.u64Base, pCtx->ldtr.u32Limit, pCtx->ldtr.Attr.u,
1953	pCtx->tr.Sel, pCtx->tr.u64Base, pCtx->tr.u32Limit, pCtx->tr.Attr.u,
1954	pCtx->SysEnter.cs, pCtx->SysEnter.eip, pCtx->SysEnter.esp));
1955	else
1956	Log(("eax=%08x ebx=%08x ecx=%08x edx=%08x esi=%08x edi=%08x\n"
1957	"eip=%08x esp=%08x ebp=%08x iopl=%d %*s\n"
1958	"cs={%04x base=%016RX64 limit=%08x flags=%08x} dr0=%08RX64 dr1=%08RX64\n"
1959	"ds={%04x base=%016RX64 limit=%08x flags=%08x} dr2=%08RX64 dr3=%08RX64\n"
1960	"es={%04x base=%016RX64 limit=%08x flags=%08x} dr4=%08RX64 dr5=%08RX64\n"
1961	"fs={%04x base=%016RX64 limit=%08x flags=%08x} dr6=%08RX64 dr7=%08RX64\n"
1962	"gs={%04x base=%016RX64 limit=%08x flags=%08x} cr0=%08RX64 cr2=%08RX64\n"
1963	"ss={%04x base=%016RX64 limit=%08x flags=%08x} cr3=%08RX64 cr4=%08RX64\n"
1964	"gdtr=%016RX64:%04x idtr=%016RX64:%04x eflags=%08x\n"
1965	"ldtr={%04x base=%08RX64 limit=%08x flags=%08x}\n"
1966	"tr ={%04x base=%08RX64 limit=%08x flags=%08x}\n"
1967	"SysEnter={cs=%04llx eip=%08llx esp=%08llx}\n"
1968	,
1969	pCtx->eax, pCtx->ebx, pCtx->ecx, pCtx->edx, pCtx->esi, pCtx->edi,
1970	pCtx->eip, pCtx->esp, pCtx->ebp, X86_EFL_GET_IOPL(fEFlags), 31, szEFlags,
1971	pCtx->cs.Sel, pCtx->cs.u64Base, pCtx->cs.u32Limit, pCtx->cs.Attr.u, pCtx->dr[0], pCtx->dr[1],
1972	pCtx->ds.Sel, pCtx->ds.u64Base, pCtx->ds.u32Limit, pCtx->ds.Attr.u, pCtx->dr[2], pCtx->dr[3],
1973	pCtx->es.Sel, pCtx->es.u64Base, pCtx->es.u32Limit, pCtx->es.Attr.u, pCtx->dr[4], pCtx->dr[5],
1974	pCtx->fs.Sel, pCtx->fs.u64Base, pCtx->fs.u32Limit, pCtx->fs.Attr.u, pCtx->dr[6], pCtx->dr[7],
1975	pCtx->gs.Sel, pCtx->gs.u64Base, pCtx->gs.u32Limit, pCtx->gs.Attr.u, pCtx->cr0, pCtx->cr2,
1976	pCtx->ss.Sel, pCtx->ss.u64Base, pCtx->ss.u32Limit, pCtx->ss.Attr.u, pCtx->cr3, pCtx->cr4,
1977	pCtx->gdtr.pGdt, pCtx->gdtr.cbGdt, pCtx->idtr.pIdt, pCtx->idtr.cbIdt, fEFlags,
1978	pCtx->ldtr.Sel, pCtx->ldtr.u64Base, pCtx->ldtr.u32Limit, pCtx->ldtr.Attr.u,
1979	pCtx->tr.Sel, pCtx->tr.u64Base, pCtx->tr.u32Limit, pCtx->tr.Attr.u,
1980	pCtx->SysEnter.cs, pCtx->SysEnter.eip, pCtx->SysEnter.esp));
1981	}
1982
1983	if (fFlags & HM_DUMP_REG_FLAGS_FPU)
1984	{
1985	PCX86FXSTATE pFpuCtx = &pCtx->XState.x87;
1986	Log(("FPU:\n"
1987	"FCW=%04x FSW=%04x FTW=%02x\n"
1988	"FOP=%04x FPUIP=%08x CS=%04x Rsrvd1=%04x\n"
1989	"FPUDP=%04x DS=%04x Rsvrd2=%04x MXCSR=%08x MXCSR_MASK=%08x\n"
1990	,
1991	pFpuCtx->FCW, pFpuCtx->FSW, pFpuCtx->FTW,
1992	pFpuCtx->FOP, pFpuCtx->FPUIP, pFpuCtx->CS, pFpuCtx->Rsrvd1,
1993	pFpuCtx->FPUDP, pFpuCtx->DS, pFpuCtx->Rsrvd2,
1994	pFpuCtx->MXCSR, pFpuCtx->MXCSR_MASK));
1995	NOREF(pFpuCtx);
1996	}
1997
1998	if (fFlags & HM_DUMP_REG_FLAGS_MSRS)
1999	Log(("MSR:\n"
2000	"EFER =%016RX64\n"
2001	"PAT =%016RX64\n"
2002	"STAR =%016RX64\n"
2003	"CSTAR =%016RX64\n"
2004	"LSTAR =%016RX64\n"
2005	"SFMASK =%016RX64\n"
2006	"KERNELGSBASE =%016RX64\n",
2007	pCtx->msrEFER,
2008	pCtx->msrPAT,
2009	pCtx->msrSTAR,
2010	pCtx->msrCSTAR,
2011	pCtx->msrLSTAR,
2012	pCtx->msrSFMASK,
2013	pCtx->msrKERNELGSBASE));
2014	}
2015
2016	#endif /* VBOX_STRICT */
2017

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source: vbox/trunk/src/VBox/VMM/VMMR0/HMR0.cpp@ 102987

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