HMR0.cpp@ 45947

Last change on this file since 45947 was 45947, checked in by vboxsync, 12 years ago
VMM: HM cleanup for CTRL, CONTROLS in symbolic names.
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1	/* $Id: HMR0.cpp 45947 2013-05-08 12:27:58Z vboxsync $ */
2	/** @file
3	* Hardware Assisted Virtualization Manager (HM) - Host Context Ring-0.
4	*/
5
6	/*
7	* Copyright (C) 2006-2013 Oracle Corporation
8	*
9	* This file is part of VirtualBox Open Source Edition (OSE), as
10	* available from http://www.virtualbox.org. This file is free software;
11	* you can redistribute it and/or modify it under the terms of the GNU
12	* General Public License (GPL) as published by the Free Software
13	* Foundation, in version 2 as it comes in the "COPYING" file of the
14	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16	*/
17
18
19	/*******************************************************************************
20	* Header Files *
21	*******************************************************************************/
22	#define LOG_GROUP LOG_GROUP_HM
23	#include <VBox/vmm/hm.h>
24	#include <VBox/vmm/pgm.h>
25	#include "HMInternal.h"
26	#include <VBox/vmm/vm.h>
27	#include <VBox/vmm/hm_vmx.h>
28	#include <VBox/vmm/hm_svm.h>
29	#include <VBox/err.h>
30	#include <VBox/log.h>
31	#include <iprt/assert.h>
32	#include <iprt/asm.h>
33	#include <iprt/asm-amd64-x86.h>
34	#include <iprt/cpuset.h>
35	#include <iprt/mem.h>
36	#include <iprt/memobj.h>
37	#include <iprt/once.h>
38	#include <iprt/param.h>
39	#include <iprt/power.h>
40	#include <iprt/string.h>
41	#include <iprt/thread.h>
42	#include <iprt/x86.h>
43	#include "HWVMXR0.h"
44	#include "HWSVMR0.h"
45
46
47	/*******************************************************************************
48	* Internal Functions *
49	*******************************************************************************/
50	static DECLCALLBACK(void) hmR0EnableCpuCallback(RTCPUID idCpu, void pvUser1, void pvUser2);
51	static DECLCALLBACK(void) hmR0DisableCpuCallback(RTCPUID idCpu, void pvUser1, void pvUser2);
52	static DECLCALLBACK(void) hmR0InitIntelCpu(RTCPUID idCpu, void pvUser1, void pvUser2);
53	static DECLCALLBACK(void) hmR0InitAmdCpu(RTCPUID idCpu, void pvUser1, void pvUser2);
54	static DECLCALLBACK(void) hmR0PowerCallback(RTPOWEREVENT enmEvent, void *pvUser);
55	static DECLCALLBACK(void) hmR0MpEventCallback(RTMPEVENT enmEvent, RTCPUID idCpu, void *pvData);
56
57
58	/*******************************************************************************
59	* Structures and Typedefs *
60	*******************************************************************************/
61	/**
62	* This is used to manage the status code of a RTMpOnAll in HM.
63	*/
64	typedef struct HMR0FIRSTRC
65	{
66	/** The status code. */
67	int32_t volatile rc;
68	/** The ID of the CPU reporting the first failure. */
69	RTCPUID volatile idCpu;
70	} HMR0FIRSTRC;
71	/** Pointer to a first return code structure. */
72	typedef HMR0FIRSTRC *PHMR0FIRSTRC;
73
74
75	/*******************************************************************************
76	* Global Variables *
77	*******************************************************************************/
78	/**
79	* Global data.
80	*/
81	static struct
82	{
83	/** Per CPU globals. */
84	HMGLOBLCPUINFO aCpuInfo[RTCPUSET_MAX_CPUS];
85
86	/** @name Ring-0 method table for AMD-V and VT-x specific operations.
87	* @{ */
88	DECLR0CALLBACKMEMBER(int, pfnEnterSession,(PVM pVM, PVMCPU pVCpu, PHMGLOBLCPUINFO pCpu));
89	DECLR0CALLBACKMEMBER(int, pfnLeaveSession,(PVM pVM, PVMCPU pVCpu, PCPUMCTX pCtx));
90	DECLR0CALLBACKMEMBER(int, pfnSaveHostState,(PVM pVM, PVMCPU pVCpu));
91	DECLR0CALLBACKMEMBER(int, pfnLoadGuestState,(PVM pVM, PVMCPU pVCpu, PCPUMCTX pCtx));
92	DECLR0CALLBACKMEMBER(int, pfnRunGuestCode,(PVM pVM, PVMCPU pVCpu, PCPUMCTX pCtx));
93	DECLR0CALLBACKMEMBER(int, pfnEnableCpu,(PHMGLOBLCPUINFO pCpu, PVM pVM, void *pvCpuPage, RTHCPHYS HCPhysCpuPage,
94	bool fEnabledByHost));
95	DECLR0CALLBACKMEMBER(int, pfnDisableCpu,(PHMGLOBLCPUINFO pCpu, void *pvCpuPage, RTHCPHYS HCPhysCpuPage));
96	DECLR0CALLBACKMEMBER(int, pfnInitVM,(PVM pVM));
97	DECLR0CALLBACKMEMBER(int, pfnTermVM,(PVM pVM));
98	DECLR0CALLBACKMEMBER(int, pfnSetupVM,(PVM pVM));
99	/** @} */
100
101	/** Maximum ASID allowed. */
102	uint32_t uMaxAsid;
103
104	/** VT-x data. */
105	struct
106	{
107	/** Set to by us to indicate VMX is supported by the CPU. */
108	bool fSupported;
109	/** Whether we're using SUPR0EnableVTx or not. */
110	bool fUsingSUPR0EnableVTx;
111	/** Whether we're using the preemption timer or not. */
112	bool fUsePreemptTimer;
113	/** The shift mask employed by the VMX-Preemption timer. */
114	uint8_t cPreemptTimerShift;
115
116	/** Host CR4 value (set by ring-0 VMX init) */
117	uint64_t hostCR4;
118
119	/** Host EFER value (set by ring-0 VMX init) */
120	uint64_t hostEFER;
121
122	/** VMX MSR values */
123	struct
124	{
125	uint64_t feature_ctrl;
126	uint64_t vmx_basic_info;
127	VMX_CAPABILITY vmx_pin_ctls;
128	VMX_CAPABILITY vmx_proc_ctls;
129	VMX_CAPABILITY vmx_proc_ctls2;
130	VMX_CAPABILITY vmx_exit;
131	VMX_CAPABILITY vmx_entry;
132	uint64_t vmx_misc;
133	uint64_t vmx_cr0_fixed0;
134	uint64_t vmx_cr0_fixed1;
135	uint64_t vmx_cr4_fixed0;
136	uint64_t vmx_cr4_fixed1;
137	uint64_t vmx_vmcs_enum;
138	uint64_t vmx_ept_vpid_caps;
139	} msr;
140	/* Last instruction error */
141	uint32_t ulLastInstrError;
142	} vmx;
143
144	/** AMD-V information. */
145	struct
146	{
147	/* HWCR MSR (for diagnostics) */
148	uint64_t msrHwcr;
149
150	/** SVM revision. */
151	uint32_t u32Rev;
152
153	/** SVM feature bits from cpuid 0x8000000a */
154	uint32_t u32Features;
155
156	/** Set by us to indicate SVM is supported by the CPU. */
157	bool fSupported;
158	} svm;
159	/** Saved error from detection */
160	int32_t lLastError;
161
162	struct
163	{
164	uint32_t u32AMDFeatureECX;
165	uint32_t u32AMDFeatureEDX;
166	} cpuid;
167
168	/** If set, VT-x/AMD-V is enabled globally at init time, otherwise it's
169	* enabled and disabled each time it's used to execute guest code. */
170	bool fGlobalInit;
171	/** Indicates whether the host is suspending or not. We'll refuse a few
172	* actions when the host is being suspended to speed up the suspending and
173	* avoid trouble. */
174	volatile bool fSuspended;
175
176	/** Whether we've already initialized all CPUs.
177	* @remarks We could check the EnableAllCpusOnce state, but this is
178	* simpler and hopefully easier to understand. */
179	bool fEnabled;
180	/** Serialize initialization in HMR0EnableAllCpus. */
181	RTONCE EnableAllCpusOnce;
182	} g_HvmR0;
183
184
185
186	/**
187	* Initializes a first return code structure.
188	*
189	* @param pFirstRc The structure to init.
190	*/
191	static void hmR0FirstRcInit(PHMR0FIRSTRC pFirstRc)
192	{
193	pFirstRc->rc = VINF_SUCCESS;
194	pFirstRc->idCpu = NIL_RTCPUID;
195	}
196
197
198	/**
199	* Try set the status code (success ignored).
200	*
201	* @param pFirstRc The first return code structure.
202	* @param rc The status code.
203	*/
204	static void hmR0FirstRcSetStatus(PHMR0FIRSTRC pFirstRc, int rc)
205	{
206	if ( RT_FAILURE(rc)
207	&& ASMAtomicCmpXchgS32(&pFirstRc->rc, rc, VINF_SUCCESS))
208	pFirstRc->idCpu = RTMpCpuId();
209	}
210
211
212	/**
213	* Get the status code of a first return code structure.
214	*
215	* @returns The status code; VINF_SUCCESS or error status, no informational or
216	* warning errors.
217	* @param pFirstRc The first return code structure.
218	*/
219	static int hmR0FirstRcGetStatus(PHMR0FIRSTRC pFirstRc)
220	{
221	return pFirstRc->rc;
222	}
223
224
225	#ifdef VBOX_STRICT
226	/**
227	* Get the CPU ID on which the failure status code was reported.
228	*
229	* @returns The CPU ID, NIL_RTCPUID if no failure was reported.
230	* @param pFirstRc The first return code structure.
231	*/
232	static RTCPUID hmR0FirstRcGetCpuId(PHMR0FIRSTRC pFirstRc)
233	{
234	return pFirstRc->idCpu;
235	}
236	#endif /* VBOX_STRICT */
237
238
239	/** @name Dummy callback handlers.
240	* @{ */
241
242	static DECLCALLBACK(int) hmR0DummyEnter(PVM pVM, PVMCPU pVCpu, PHMGLOBLCPUINFO pCpu)
243	{
244	NOREF(pVM); NOREF(pVCpu); NOREF(pCpu);
245	return VINF_SUCCESS;
246	}
247
248	static DECLCALLBACK(int) hmR0DummyLeave(PVM pVM, PVMCPU pVCpu, PCPUMCTX pCtx)
249	{
250	NOREF(pVM); NOREF(pVCpu); NOREF(pCtx);
251	return VINF_SUCCESS;
252	}
253
254	static DECLCALLBACK(int) hmR0DummyEnableCpu(PHMGLOBLCPUINFO pCpu, PVM pVM, void *pvCpuPage, RTHCPHYS HCPhysCpuPage,
255	bool fEnabledBySystem)
256	{
257	NOREF(pCpu); NOREF(pVM); NOREF(pvCpuPage); NOREF(HCPhysCpuPage); NOREF(fEnabledBySystem);
258	return VINF_SUCCESS;
259	}
260
261	static DECLCALLBACK(int) hmR0DummyDisableCpu(PHMGLOBLCPUINFO pCpu, void *pvCpuPage, RTHCPHYS HCPhysCpuPage)
262	{
263	NOREF(pCpu); NOREF(pvCpuPage); NOREF(HCPhysCpuPage);
264	return VINF_SUCCESS;
265	}
266
267	static DECLCALLBACK(int) hmR0DummyInitVM(PVM pVM)
268	{
269	NOREF(pVM);
270	return VINF_SUCCESS;
271	}
272
273	static DECLCALLBACK(int) hmR0DummyTermVM(PVM pVM)
274	{
275	NOREF(pVM);
276	return VINF_SUCCESS;
277	}
278
279	static DECLCALLBACK(int) hmR0DummySetupVM(PVM pVM)
280	{
281	NOREF(pVM);
282	return VINF_SUCCESS;
283	}
284
285	static DECLCALLBACK(int) hmR0DummyRunGuestCode(PVM pVM, PVMCPU pVCpu, PCPUMCTX pCtx)
286	{
287	NOREF(pVM); NOREF(pVCpu); NOREF(pCtx);
288	return VINF_SUCCESS;
289	}
290
291	static DECLCALLBACK(int) hmR0DummySaveHostState(PVM pVM, PVMCPU pVCpu)
292	{
293	NOREF(pVM); NOREF(pVCpu);
294	return VINF_SUCCESS;
295	}
296
297	static DECLCALLBACK(int) hmR0DummyLoadGuestState(PVM pVM, PVMCPU pVCpu, PCPUMCTX pCtx)
298	{
299	NOREF(pVM); NOREF(pVCpu); NOREF(pCtx);
300	return VINF_SUCCESS;
301	}
302
303	/** @} */
304
305
306	/**
307	* Checks if the CPU is subject to the "VMX-Preemption Timer Does Not Count
308	* Down at the Rate Specified" erratum.
309	*
310	* Errata names and related steppings:
311	* - BA86 - D0.
312	* - AAX65 - C2.
313	* - AAU65 - C2, K0.
314	* - AAO95 - B1.
315	* - AAT59 - C2.
316	* - AAK139 - D0.
317	* - AAM126 - C0, C1, D0.
318	* - AAN92 - B1.
319	* - AAJ124 - C0, D0.
320	*
321	* - AAP86 - B1.
322	*
323	* Steppings: B1, C0, C1, C2, D0, K0.
324	*
325	* @returns true if subject to it, false if not.
326	*/
327	static bool hmR0InitIntelIsSubjectToVmxPreemptionTimerErratum(void)
328	{
329	uint32_t u = ASMCpuId_EAX(1);
330	u &= ~(RT_BIT_32(14) \| RT_BIT_32(15) \| RT_BIT_32(28) \| RT_BIT_32(29) \| RT_BIT_32(30) \| RT_BIT_32(31));
331	if ( u == UINT32_C(0x000206E6) /* 323344.pdf - BA86 - D0 - Intel Xeon Processor 7500 Series */
332	\|\| u == UINT32_C(0x00020652) /* 323056.pdf - AAX65 - C2 - Intel Xeon Processor L3406 */
333	\|\| u == UINT32_C(0x00020652) /* 322814.pdf - AAT59 - C2 - Intel CoreTM i7-600, i5-500, i5-400 and i3-300 Mobile Processor Series */
334	\|\| u == UINT32_C(0x00020652) /* 322911.pdf - AAU65 - C2 - Intel CoreTM i5-600, i3-500 Desktop Processor Series and Intel Pentium Processor G6950 */
335	\|\| u == UINT32_C(0x00020655) /* 322911.pdf - AAU65 - K0 - Intel CoreTM i5-600, i3-500 Desktop Processor Series and Intel Pentium Processor G6950 */
336	\|\| u == UINT32_C(0x000106E5) /* 322373.pdf - AAO95 - B1 - Intel Xeon Processor 3400 Series */
337	\|\| u == UINT32_C(0x000106E5) /* 322166.pdf - AAN92 - B1 - Intel CoreTM i7-800 and i5-700 Desktop Processor Series */
338	\|\| u == UINT32_C(0x000106E5) /* 320767.pdf - AAP86 - B1 - Intel Core i7-900 Mobile Processor Extreme Edition Series, Intel Core i7-800 and i7-700 Mobile Processor Series */
339	\|\| u == UINT32_C(0x000106A0) /?321333.pdf - AAM126 - C0 - Intel Xeon Processor 3500 Series Specification /
340	\|\| u == UINT32_C(0x000106A1) /?321333.pdf - AAM126 - C1 - Intel Xeon Processor 3500 Series Specification /
341	\|\| u == UINT32_C(0x000106A4) /* 320836.pdf - AAJ124 - C0 - Intel Core i7-900 Desktop Processor Extreme Edition Series and Intel Core i7-900 Desktop Processor Series */
342	\|\| u == UINT32_C(0x000106A5) /* 321333.pdf - AAM126 - D0 - Intel Xeon Processor 3500 Series Specification */
343	\|\| u == UINT32_C(0x000106A5) /* 321324.pdf - AAK139 - D0 - Intel Xeon Processor 5500 Series Specification */
344	\|\| u == UINT32_C(0x000106A5) /* 320836.pdf - AAJ124 - D0 - Intel Core i7-900 Desktop Processor Extreme Edition Series and Intel Core i7-900 Desktop Processor Series */
345	)
346	return true;
347	return false;
348	}
349
350
351	/**
352	* Intel specific initialization code.
353	*
354	* @returns VBox status code (will only fail if out of memory).
355	*/
356	static int hmR0InitIntel(uint32_t u32FeaturesECX, uint32_t u32FeaturesEDX)
357	{
358	/*
359	* Check that all the required VT-x features are present.
360	* We also assume all VT-x-enabled CPUs support fxsave/fxrstor.
361	*/
362	if ( (u32FeaturesECX & X86_CPUID_FEATURE_ECX_VMX)
363	&& (u32FeaturesEDX & X86_CPUID_FEATURE_EDX_MSR)
364	&& (u32FeaturesEDX & X86_CPUID_FEATURE_EDX_FXSR)
365	)
366	{
367	/** @todo move this into a separate function. */
368	g_HvmR0.vmx.msr.feature_ctrl = ASMRdMsr(MSR_IA32_FEATURE_CONTROL);
369
370	/*
371	* First try use native kernel API for controlling VT-x.
372	* (This is only supported by some Mac OS X kernels atm.)
373	*/
374	int rc = g_HvmR0.lLastError = SUPR0EnableVTx(true /* fEnable */);
375	g_HvmR0.vmx.fUsingSUPR0EnableVTx = rc != VERR_NOT_SUPPORTED;
376	if (g_HvmR0.vmx.fUsingSUPR0EnableVTx)
377	{
378	AssertLogRelMsg(rc == VINF_SUCCESS \|\| rc == VERR_VMX_IN_VMX_ROOT_MODE \|\| rc == VERR_VMX_NO_VMX, ("%Rrc\n", rc));
379	if (RT_SUCCESS(rc))
380	{
381	g_HvmR0.vmx.fSupported = true;
382	rc = SUPR0EnableVTx(false /* fEnable */);
383	AssertLogRelRC(rc);
384	}
385	}
386	else
387	{
388	/* We need to check if VT-x has been properly initialized on all
389	CPUs. Some BIOSes do a lousy job. */
390	HMR0FIRSTRC FirstRc;
391	hmR0FirstRcInit(&FirstRc);
392	g_HvmR0.lLastError = RTMpOnAll(hmR0InitIntelCpu, &FirstRc, NULL);
393	if (RT_SUCCESS(g_HvmR0.lLastError))
394	g_HvmR0.lLastError = hmR0FirstRcGetStatus(&FirstRc);
395	}
396	if (RT_SUCCESS(g_HvmR0.lLastError))
397	{
398	/* Reread in case we've changed it. */
399	g_HvmR0.vmx.msr.feature_ctrl = ASMRdMsr(MSR_IA32_FEATURE_CONTROL);
400
401	if ( (g_HvmR0.vmx.msr.feature_ctrl & (MSR_IA32_FEATURE_CONTROL_VMXON \| MSR_IA32_FEATURE_CONTROL_LOCK))
402	== (MSR_IA32_FEATURE_CONTROL_VMXON \| MSR_IA32_FEATURE_CONTROL_LOCK))
403	{
404	/*
405	* Read all relevant MSR.
406	*/
407	g_HvmR0.vmx.msr.vmx_basic_info = ASMRdMsr(MSR_IA32_VMX_BASIC_INFO);
408	g_HvmR0.vmx.msr.vmx_pin_ctls.u = ASMRdMsr(MSR_IA32_VMX_PINBASED_CTLS);
409	g_HvmR0.vmx.msr.vmx_proc_ctls.u = ASMRdMsr(MSR_IA32_VMX_PROCBASED_CTLS);
410	g_HvmR0.vmx.msr.vmx_exit.u = ASMRdMsr(MSR_IA32_VMX_EXIT_CTLS);
411	g_HvmR0.vmx.msr.vmx_entry.u = ASMRdMsr(MSR_IA32_VMX_ENTRY_CTLS);
412	g_HvmR0.vmx.msr.vmx_misc = ASMRdMsr(MSR_IA32_VMX_MISC);
413	g_HvmR0.vmx.msr.vmx_cr0_fixed0 = ASMRdMsr(MSR_IA32_VMX_CR0_FIXED0);
414	g_HvmR0.vmx.msr.vmx_cr0_fixed1 = ASMRdMsr(MSR_IA32_VMX_CR0_FIXED1);
415	g_HvmR0.vmx.msr.vmx_cr4_fixed0 = ASMRdMsr(MSR_IA32_VMX_CR4_FIXED0);
416	g_HvmR0.vmx.msr.vmx_cr4_fixed1 = ASMRdMsr(MSR_IA32_VMX_CR4_FIXED1);
417	g_HvmR0.vmx.msr.vmx_vmcs_enum = ASMRdMsr(MSR_IA32_VMX_VMCS_ENUM);
418	g_HvmR0.vmx.hostCR4 = ASMGetCR4();
419	g_HvmR0.vmx.hostEFER = ASMRdMsr(MSR_K6_EFER);
420	/* VPID 16 bits ASID. */
421	g_HvmR0.uMaxAsid = 0x10000; /* exclusive */
422
423	if (g_HvmR0.vmx.msr.vmx_proc_ctls.n.allowed1 & VMX_VMCS_CTRL_PROC_EXEC_USE_SECONDARY_EXEC_CTRL)
424	{
425	g_HvmR0.vmx.msr.vmx_proc_ctls2.u = ASMRdMsr(MSR_IA32_VMX_PROCBASED_CTLS2);
426	if ( g_HvmR0.vmx.msr.vmx_proc_ctls2.n.allowed1
427	& (VMX_VMCS_CTRL_PROC_EXEC2_EPT \| VMX_VMCS_CTRL_PROC_EXEC2_VPID))
428	{
429	g_HvmR0.vmx.msr.vmx_ept_vpid_caps = ASMRdMsr(MSR_IA32_VMX_EPT_VPID_CAP);
430	}
431	}
432
433	if (!g_HvmR0.vmx.fUsingSUPR0EnableVTx)
434	{
435	/*
436	* Enter root mode
437	*/
438	RTR0MEMOBJ hScatchMemObj;
439	rc = RTR0MemObjAllocCont(&hScatchMemObj, PAGE_SIZE, false /* fExecutable */);
440	if (RT_FAILURE(rc))
441	{
442	LogRel(("hmR0InitIntel: RTR0MemObjAllocCont(,PAGE_SIZE,true) -> %Rrc\n", rc));
443	return rc;
444	}
445
446	void *pvScatchPage = RTR0MemObjAddress(hScatchMemObj);
447	RTHCPHYS HCPhysScratchPage = RTR0MemObjGetPagePhysAddr(hScatchMemObj, 0);
448	ASMMemZeroPage(pvScatchPage);
449
450	/* Set revision dword at the beginning of the structure. */
451	(uint32_t )pvScatchPage = MSR_IA32_VMX_BASIC_INFO_VMCS_ID(g_HvmR0.vmx.msr.vmx_basic_info);
452
453	/* Make sure we don't get rescheduled to another cpu during this probe. */
454	RTCCUINTREG fFlags = ASMIntDisableFlags();
455
456	/*
457	* Check CR4.VMXE
458	*/
459	g_HvmR0.vmx.hostCR4 = ASMGetCR4();
460	if (!(g_HvmR0.vmx.hostCR4 & X86_CR4_VMXE))
461	{
462	/* In theory this bit could be cleared behind our back. Which would cause
463	#UD faults when we try to execute the VMX instructions... */
464	ASMSetCR4(g_HvmR0.vmx.hostCR4 \| X86_CR4_VMXE);
465	}
466
467	/* Enter VMX Root Mode */
468	rc = VMXEnable(HCPhysScratchPage);
469	if (RT_SUCCESS(rc))
470	{
471	g_HvmR0.vmx.fSupported = true;
472	VMXDisable();
473	}
474	else
475	{
476	/*
477	* KVM leaves the CPU in VMX root mode. Not only is this not allowed,
478	* it will crash the host when we enter raw mode, because:
479	*
480	* (a) clearing X86_CR4_VMXE in CR4 causes a #GP (we no longer modify
481	* this bit), and
482	* (b) turning off paging causes a #GP (unavoidable when switching
483	* from long to 32 bits mode or 32 bits to PAE).
484	*
485	* They should fix their code, but until they do we simply refuse to run.
486	*/
487	g_HvmR0.lLastError = VERR_VMX_IN_VMX_ROOT_MODE;
488	}
489
490	/* Restore CR4 again; don't leave the X86_CR4_VMXE flag set
491	if it wasn't so before (some software could incorrectly
492	think it's in VMX mode). */
493	ASMSetCR4(g_HvmR0.vmx.hostCR4);
494	ASMSetFlags(fFlags);
495
496	RTR0MemObjFree(hScatchMemObj, false);
497	}
498	}
499	else
500	{
501	AssertFailed(); /* can't hit this case anymore */
502	g_HvmR0.lLastError = VERR_VMX_ILLEGAL_FEATURE_CONTROL_MSR;
503	}
504
505	if (g_HvmR0.vmx.fSupported)
506	{
507	/* Call the global VT-x initialization routine. */
508	rc = VMXR0GlobalInit();
509	if (RT_FAILURE(rc))
510	g_HvmR0.lLastError = rc;
511
512	/*
513	* Install the VT-x methods.
514	*/
515	g_HvmR0.pfnEnterSession = VMXR0Enter;
516	g_HvmR0.pfnLeaveSession = VMXR0Leave;
517	g_HvmR0.pfnSaveHostState = VMXR0SaveHostState;
518	g_HvmR0.pfnLoadGuestState = VMXR0LoadGuestState;
519	g_HvmR0.pfnRunGuestCode = VMXR0RunGuestCode;
520	g_HvmR0.pfnEnableCpu = VMXR0EnableCpu;
521	g_HvmR0.pfnDisableCpu = VMXR0DisableCpu;
522	g_HvmR0.pfnInitVM = VMXR0InitVM;
523	g_HvmR0.pfnTermVM = VMXR0TermVM;
524	g_HvmR0.pfnSetupVM = VMXR0SetupVM;
525
526	/*
527	* Check for the VMX-Preemption Timer and adjust for the * "VMX-Preemption
528	* Timer Does Not Count Down at the Rate Specified" erratum.
529	*/
530	if (g_HvmR0.vmx.msr.vmx_pin_ctls.n.allowed1 & VMX_VMCS_CTRL_PIN_EXEC_PREEMPT_TIMER)
531	{
532	g_HvmR0.vmx.fUsePreemptTimer = true;
533	g_HvmR0.vmx.cPreemptTimerShift = MSR_IA32_VMX_MISC_PREEMPT_TSC_BIT(g_HvmR0.vmx.msr.vmx_misc);
534	if (hmR0InitIntelIsSubjectToVmxPreemptionTimerErratum())
535	g_HvmR0.vmx.cPreemptTimerShift = 0; /* This is about right most of the time here. */
536	}
537	}
538	}
539	#ifdef LOG_ENABLED
540	else
541	SUPR0Printf("hmR0InitIntelCpu failed with rc=%d\n", g_HvmR0.lLastError);
542	#endif
543	}
544	else
545	g_HvmR0.lLastError = VERR_VMX_NO_VMX;
546	return VINF_SUCCESS;
547	}
548
549
550	/**
551	* AMD-specific initialization code.
552	*/
553	static void hmR0InitAmd(uint32_t u32FeaturesEDX, uint32_t uMaxExtLeaf)
554	{
555	/*
556	* Read all SVM MSRs if SVM is available. (same goes for RDMSR/WRMSR)
557	* We also assume all SVM-enabled CPUs support fxsave/fxrstor.
558	*/
559	if ( (g_HvmR0.cpuid.u32AMDFeatureECX & X86_CPUID_AMD_FEATURE_ECX_SVM)
560	&& (u32FeaturesEDX & X86_CPUID_FEATURE_EDX_MSR)
561	&& (u32FeaturesEDX & X86_CPUID_FEATURE_EDX_FXSR)
562	&& ASMIsValidExtRange(uMaxExtLeaf)
563	&& uMaxExtLeaf >= 0x8000000a
564	)
565	{
566	g_HvmR0.pfnEnterSession = SVMR0Enter;
567	g_HvmR0.pfnLeaveSession = SVMR0Leave;
568	g_HvmR0.pfnSaveHostState = SVMR0SaveHostState;
569	g_HvmR0.pfnLoadGuestState = SVMR0LoadGuestState;
570	g_HvmR0.pfnRunGuestCode = SVMR0RunGuestCode;
571	g_HvmR0.pfnEnableCpu = SVMR0EnableCpu;
572	g_HvmR0.pfnDisableCpu = SVMR0DisableCpu;
573	g_HvmR0.pfnInitVM = SVMR0InitVM;
574	g_HvmR0.pfnTermVM = SVMR0TermVM;
575	g_HvmR0.pfnSetupVM = SVMR0SetupVM;
576
577	/* Query AMD features. */
578	uint32_t u32Dummy;
579	ASMCpuId(0x8000000a, &g_HvmR0.svm.u32Rev, &g_HvmR0.uMaxAsid, &u32Dummy, &g_HvmR0.svm.u32Features);
580
581	/*
582	* We need to check if AMD-V has been properly initialized on all CPUs.
583	* Some BIOSes might do a poor job.
584	*/
585	HMR0FIRSTRC FirstRc;
586	hmR0FirstRcInit(&FirstRc);
587	int rc = RTMpOnAll(hmR0InitAmdCpu, &FirstRc, NULL);
588	AssertRC(rc);
589	if (RT_SUCCESS(rc))
590	rc = hmR0FirstRcGetStatus(&FirstRc);
591	#ifndef DEBUG_bird
592	AssertMsg(rc == VINF_SUCCESS \|\| rc == VERR_SVM_IN_USE,
593	("hmR0InitAmdCpu failed for cpu %d with rc=%Rrc\n", hmR0FirstRcGetCpuId(&FirstRc), rc));
594	#endif
595	if (RT_SUCCESS(rc))
596	{
597	/* Read the HWCR MSR for diagnostics. */
598	g_HvmR0.svm.msrHwcr = ASMRdMsr(MSR_K8_HWCR);
599	g_HvmR0.svm.fSupported = true;
600	}
601	else
602	g_HvmR0.lLastError = rc;
603	}
604	else
605	g_HvmR0.lLastError = VERR_SVM_NO_SVM;
606	}
607
608
609	/**
610	* Does global Ring-0 HM initialization (at module init).
611	*
612	* @returns VBox status code.
613	*/
614	VMMR0_INT_DECL(int) HMR0Init(void)
615	{
616	/*
617	* Initialize the globals.
618	*/
619	g_HvmR0.fEnabled = false;
620	static RTONCE s_OnceInit = RTONCE_INITIALIZER;
621	g_HvmR0.EnableAllCpusOnce = s_OnceInit;
622	for (unsigned i = 0; i < RT_ELEMENTS(g_HvmR0.aCpuInfo); i++)
623	g_HvmR0.aCpuInfo[i].hMemObj = NIL_RTR0MEMOBJ;
624
625	/* Fill in all callbacks with placeholders. */
626	g_HvmR0.pfnEnterSession = hmR0DummyEnter;
627	g_HvmR0.pfnLeaveSession = hmR0DummyLeave;
628	g_HvmR0.pfnSaveHostState = hmR0DummySaveHostState;
629	g_HvmR0.pfnLoadGuestState = hmR0DummyLoadGuestState;
630	g_HvmR0.pfnRunGuestCode = hmR0DummyRunGuestCode;
631	g_HvmR0.pfnEnableCpu = hmR0DummyEnableCpu;
632	g_HvmR0.pfnDisableCpu = hmR0DummyDisableCpu;
633	g_HvmR0.pfnInitVM = hmR0DummyInitVM;
634	g_HvmR0.pfnTermVM = hmR0DummyTermVM;
635	g_HvmR0.pfnSetupVM = hmR0DummySetupVM;
636
637	/* Default is global VT-x/AMD-V init. */
638	g_HvmR0.fGlobalInit = true;
639
640	/*
641	* Make sure aCpuInfo is big enough for all the CPUs on this system.
642	*/
643	if (RTMpGetArraySize() > RT_ELEMENTS(g_HvmR0.aCpuInfo))
644	{
645	LogRel(("HM: Too many real CPUs/cores/threads - %u, max %u\n", RTMpGetArraySize(), RT_ELEMENTS(g_HvmR0.aCpuInfo)));
646	return VERR_TOO_MANY_CPUS;
647	}
648
649	/*
650	* Check for VT-x and AMD-V capabilities.
651	*/
652	int rc;
653	if (ASMHasCpuId())
654	{
655	/* Standard features. */
656	uint32_t uMaxLeaf, u32VendorEBX, u32VendorECX, u32VendorEDX;
657	ASMCpuId(0, &uMaxLeaf, &u32VendorEBX, &u32VendorECX, &u32VendorEDX);
658	if (ASMIsValidStdRange(uMaxLeaf))
659	{
660	uint32_t u32FeaturesECX, u32FeaturesEDX, u32Dummy;
661	ASMCpuId(1, &u32Dummy, &u32Dummy, &u32FeaturesECX, &u32FeaturesEDX);
662
663	/* Query AMD features. */
664	uint32_t uMaxExtLeaf = ASMCpuId_EAX(0x80000000);
665	if (ASMIsValidExtRange(uMaxExtLeaf))
666	ASMCpuId(0x80000001, &u32Dummy, &u32Dummy,
667	&g_HvmR0.cpuid.u32AMDFeatureECX,
668	&g_HvmR0.cpuid.u32AMDFeatureEDX);
669	else
670	g_HvmR0.cpuid.u32AMDFeatureECX = g_HvmR0.cpuid.u32AMDFeatureEDX = 0;
671
672	/* Go to CPU specific initialization code. */
673	if ( ASMIsIntelCpuEx(u32VendorEBX, u32VendorECX, u32VendorEDX)
674	\|\| ASMIsViaCentaurCpuEx(u32VendorEBX, u32VendorECX, u32VendorEDX))
675	{
676	rc = hmR0InitIntel(u32FeaturesECX, u32FeaturesEDX);
677	if (RT_FAILURE(rc))
678	return rc;
679	}
680	else if (ASMIsAmdCpuEx(u32VendorEBX, u32VendorECX, u32VendorEDX))
681	hmR0InitAmd(u32FeaturesEDX, uMaxExtLeaf);
682	else
683	g_HvmR0.lLastError = VERR_HM_UNKNOWN_CPU;
684	}
685	else
686	g_HvmR0.lLastError = VERR_HM_UNKNOWN_CPU;
687	}
688	else
689	g_HvmR0.lLastError = VERR_HM_NO_CPUID;
690
691	/*
692	* Register notification callbacks that we can use to disable/enable CPUs
693	* when brought offline/online or suspending/resuming.
694	*/
695	if (!g_HvmR0.vmx.fUsingSUPR0EnableVTx)
696	{
697	rc = RTMpNotificationRegister(hmR0MpEventCallback, NULL);
698	AssertRC(rc);
699
700	rc = RTPowerNotificationRegister(hmR0PowerCallback, NULL);
701	AssertRC(rc);
702	}
703
704	/* We return success here because module init shall not fail if HM
705	fails to initialize. */
706	return VINF_SUCCESS;
707	}
708
709
710	/**
711	* Does global Ring-0 HM termination (at module termination).
712	*
713	* @returns VBox status code.
714	*/
715	VMMR0_INT_DECL(int) HMR0Term(void)
716	{
717	int rc;
718	if ( g_HvmR0.vmx.fSupported
719	&& g_HvmR0.vmx.fUsingSUPR0EnableVTx)
720	{
721	/*
722	* Simple if the host OS manages VT-x.
723	*/
724	Assert(g_HvmR0.fGlobalInit);
725	rc = SUPR0EnableVTx(false /* fEnable */);
726
727	for (unsigned iCpu = 0; iCpu < RT_ELEMENTS(g_HvmR0.aCpuInfo); iCpu++)
728	{
729	g_HvmR0.aCpuInfo[iCpu].fConfigured = false;
730	Assert(g_HvmR0.aCpuInfo[iCpu].hMemObj == NIL_RTR0MEMOBJ);
731	}
732	}
733	else
734	{
735	Assert(!g_HvmR0.vmx.fUsingSUPR0EnableVTx);
736	if (!g_HvmR0.vmx.fUsingSUPR0EnableVTx)
737	{
738	/* Doesn't really matter if this fails. */
739	rc = RTMpNotificationDeregister(hmR0MpEventCallback, NULL); AssertRC(rc);
740	rc = RTPowerNotificationDeregister(hmR0PowerCallback, NULL); AssertRC(rc);
741	}
742	else
743	rc = VINF_SUCCESS;
744
745	/*
746	* Disable VT-x/AMD-V on all CPUs if we enabled it before.
747	*/
748	if (g_HvmR0.fGlobalInit)
749	{
750	HMR0FIRSTRC FirstRc;
751	hmR0FirstRcInit(&FirstRc);
752	rc = RTMpOnAll(hmR0DisableCpuCallback, NULL, &FirstRc);
753	Assert(RT_SUCCESS(rc) \|\| rc == VERR_NOT_SUPPORTED);
754	if (RT_SUCCESS(rc))
755	{
756	rc = hmR0FirstRcGetStatus(&FirstRc);
757	AssertMsgRC(rc, ("%u: %Rrc\n", hmR0FirstRcGetCpuId(&FirstRc), rc));
758	}
759	}
760
761	/*
762	* Free the per-cpu pages used for VT-x and AMD-V.
763	*/
764	for (unsigned i = 0; i < RT_ELEMENTS(g_HvmR0.aCpuInfo); i++)
765	{
766	if (g_HvmR0.aCpuInfo[i].hMemObj != NIL_RTR0MEMOBJ)
767	{
768	RTR0MemObjFree(g_HvmR0.aCpuInfo[i].hMemObj, false);
769	g_HvmR0.aCpuInfo[i].hMemObj = NIL_RTR0MEMOBJ;
770	}
771	}
772	}
773
774	/** @todo This needs cleaning up. There's no matching hmR0TermIntel() and all
775	* the VT-x/AMD-V specific bits should move into their respective
776	* modules. */
777	/* Finally, call global VT-x/AMD-V termination. */
778	if (g_HvmR0.vmx.fSupported)
779	VMXR0GlobalTerm();
780
781	return rc;
782	}
783
784
785	/**
786	* Worker function used by hmR0PowerCallback and HMR0Init to initalize
787	* VT-x on a CPU.
788	*
789	* @param idCpu The identifier for the CPU the function is called on.
790	* @param pvUser1 Pointer to the first RC structure.
791	* @param pvUser2 Ignored.
792	*/
793	static DECLCALLBACK(void) hmR0InitIntelCpu(RTCPUID idCpu, void pvUser1, void pvUser2)
794	{
795	PHMR0FIRSTRC pFirstRc = (PHMR0FIRSTRC)pvUser1;
796	Assert(idCpu == (RTCPUID)RTMpCpuIdToSetIndex(idCpu)); /// @todo fix idCpu == index assumption (rainy day)
797	NOREF(pvUser2);
798
799	/*
800	* Both the LOCK and VMXON bit must be set; otherwise VMXON will generate a #GP.
801	* Once the lock bit is set, this MSR can no longer be modified.
802	*/
803	uint64_t fFC = ASMRdMsr(MSR_IA32_FEATURE_CONTROL);
804	if ( !(fFC & (MSR_IA32_FEATURE_CONTROL_VMXON \| MSR_IA32_FEATURE_CONTROL_LOCK))
805	\|\| ( (fFC & (MSR_IA32_FEATURE_CONTROL_VMXON \| MSR_IA32_FEATURE_CONTROL_LOCK))
806	== MSR_IA32_FEATURE_CONTROL_VMXON ) /* Some BIOSes forget to set the locked bit. */
807	)
808	{
809	/* MSR is not yet locked; we can change it ourselves here. */
810	ASMWrMsr(MSR_IA32_FEATURE_CONTROL,
811	g_HvmR0.vmx.msr.feature_ctrl \| MSR_IA32_FEATURE_CONTROL_VMXON \| MSR_IA32_FEATURE_CONTROL_LOCK);
812	fFC = ASMRdMsr(MSR_IA32_FEATURE_CONTROL);
813	}
814
815	int rc;
816	if ( (fFC & (MSR_IA32_FEATURE_CONTROL_VMXON \| MSR_IA32_FEATURE_CONTROL_LOCK))
817	== (MSR_IA32_FEATURE_CONTROL_VMXON \| MSR_IA32_FEATURE_CONTROL_LOCK))
818	rc = VINF_SUCCESS;
819	else
820	rc = VERR_VMX_MSR_LOCKED_OR_DISABLED;
821
822	hmR0FirstRcSetStatus(pFirstRc, rc);
823	}
824
825
826	/**
827	* Worker function used by hmR0PowerCallback and HMR0Init to initalize
828	* VT-x / AMD-V on a CPU.
829	*
830	* @param idCpu The identifier for the CPU the function is called on.
831	* @param pvUser1 Pointer to the first RC structure.
832	* @param pvUser2 Ignored.
833	*/
834	static DECLCALLBACK(void) hmR0InitAmdCpu(RTCPUID idCpu, void pvUser1, void pvUser2)
835	{
836	PHMR0FIRSTRC pFirstRc = (PHMR0FIRSTRC)pvUser1;
837	Assert(idCpu == (RTCPUID)RTMpCpuIdToSetIndex(idCpu)); /// @todo fix idCpu == index assumption (rainy day)
838	NOREF(pvUser2);
839
840	/* Check if SVM is disabled. */
841	int rc;
842	uint64_t fVmCr = ASMRdMsr(MSR_K8_VM_CR);
843	if (!(fVmCr & MSR_K8_VM_CR_SVM_DISABLE))
844	{
845	/* Turn on SVM in the EFER MSR. */
846	uint64_t fEfer = ASMRdMsr(MSR_K6_EFER);
847	if (fEfer & MSR_K6_EFER_SVME)
848	rc = VERR_SVM_IN_USE;
849	else
850	{
851	ASMWrMsr(MSR_K6_EFER, fEfer \| MSR_K6_EFER_SVME);
852
853	/* Paranoia. */
854	fEfer = ASMRdMsr(MSR_K6_EFER);
855	if (fEfer & MSR_K6_EFER_SVME)
856	{
857	/* Restore previous value. */
858	ASMWrMsr(MSR_K6_EFER, fEfer & ~MSR_K6_EFER_SVME);
859	rc = VINF_SUCCESS;
860	}
861	else
862	rc = VERR_SVM_ILLEGAL_EFER_MSR;
863	}
864	}
865	else
866	rc = VERR_SVM_DISABLED;
867
868	hmR0FirstRcSetStatus(pFirstRc, rc);
869	}
870
871
872	/**
873	* Enable VT-x or AMD-V on the current CPU
874	*
875	* @returns VBox status code.
876	* @param pVM Pointer to the VM (can be 0).
877	* @param idCpu The identifier for the CPU the function is called on.
878	*/
879	static int hmR0EnableCpu(PVM pVM, RTCPUID idCpu)
880	{
881	PHMGLOBLCPUINFO pCpu = &g_HvmR0.aCpuInfo[idCpu];
882
883	Assert(idCpu == (RTCPUID)RTMpCpuIdToSetIndex(idCpu)); /// @todo fix idCpu == index assumption (rainy day)
884	Assert(idCpu < RT_ELEMENTS(g_HvmR0.aCpuInfo));
885	Assert(!pCpu->fConfigured);
886	Assert(!g_HvmR0.fGlobalInit \|\| ASMAtomicReadBool(&pCpu->fInUse) == false);
887
888	pCpu->idCpu = idCpu;
889	pCpu->uCurrentAsid = 0; /* we'll aways increment this the first time (host uses ASID 0) */
890	/* Do NOT reset cTlbFlushes here, see @bugref{6255}. */
891
892	int rc;
893	if (g_HvmR0.vmx.fSupported && g_HvmR0.vmx.fUsingSUPR0EnableVTx)
894	rc = g_HvmR0.pfnEnableCpu(pCpu, pVM, NULL, NIL_RTHCPHYS, true);
895	else
896	{
897	AssertLogRelMsgReturn(pCpu->hMemObj != NIL_RTR0MEMOBJ, ("hmR0EnableCpu failed idCpu=%u.\n", idCpu), VERR_HM_IPE_1);
898	void *pvCpuPage = RTR0MemObjAddress(pCpu->hMemObj);
899	RTHCPHYS HCPhysCpuPage = RTR0MemObjGetPagePhysAddr(pCpu->hMemObj, 0);
900	rc = g_HvmR0.pfnEnableCpu(pCpu, pVM, pvCpuPage, HCPhysCpuPage, false);
901	}
902	AssertRC(rc);
903	if (RT_SUCCESS(rc))
904	pCpu->fConfigured = true;
905
906	return rc;
907	}
908
909
910	/**
911	* Worker function passed to RTMpOnAll, RTMpOnOthers and RTMpOnSpecific that
912	* is to be called on the target cpus.
913	*
914	* @param idCpu The identifier for the CPU the function is called on.
915	* @param pvUser1 The 1st user argument.
916	* @param pvUser2 The 2nd user argument.
917	*/
918	static DECLCALLBACK(void) hmR0EnableCpuCallback(RTCPUID idCpu, void pvUser1, void pvUser2)
919	{
920	PVM pVM = (PVM)pvUser1; /* can be NULL! */
921	PHMR0FIRSTRC pFirstRc = (PHMR0FIRSTRC)pvUser2;
922	AssertReturnVoid(g_HvmR0.fGlobalInit);
923	hmR0FirstRcSetStatus(pFirstRc, hmR0EnableCpu(pVM, idCpu));
924	}
925
926
927	/**
928	* RTOnce callback employed by HMR0EnableAllCpus.
929	*
930	* @returns VBox status code.
931	* @param pvUser Pointer to the VM.
932	* @param pvUserIgnore NULL, ignored.
933	*/
934	static DECLCALLBACK(int32_t) hmR0EnableAllCpuOnce(void *pvUser)
935	{
936	PVM pVM = (PVM)pvUser;
937
938	/*
939	* Indicate that we've initialized.
940	*
941	* Note! There is a potential race between this function and the suspend
942	* notification. Kind of unlikely though, so ignored for now.
943	*/
944	AssertReturn(!g_HvmR0.fEnabled, VERR_HM_ALREADY_ENABLED_IPE);
945	ASMAtomicWriteBool(&g_HvmR0.fEnabled, true);
946
947	/*
948	* The global init variable is set by the first VM.
949	*/
950	g_HvmR0.fGlobalInit = pVM->hm.s.fGlobalInit;
951
952	for (unsigned i = 0; i < RT_ELEMENTS(g_HvmR0.aCpuInfo); i++)
953	{
954	Assert(g_HvmR0.aCpuInfo[i].hMemObj == NIL_RTR0MEMOBJ);
955	g_HvmR0.aCpuInfo[i].fConfigured = false;
956	g_HvmR0.aCpuInfo[i].cTlbFlushes = 0;
957	}
958
959	int rc;
960	if ( g_HvmR0.vmx.fSupported
961	&& g_HvmR0.vmx.fUsingSUPR0EnableVTx)
962	{
963	/*
964	* Global VT-x initialization API (only darwin for now).
965	*/
966	rc = SUPR0EnableVTx(true /* fEnable */);
967	if (RT_SUCCESS(rc))
968	/* If the host provides a VT-x init API, then we'll rely on that for global init. */
969	g_HvmR0.fGlobalInit = pVM->hm.s.fGlobalInit = true;
970	else
971	AssertMsgFailed(("hmR0EnableAllCpuOnce/SUPR0EnableVTx: rc=%Rrc\n", rc));
972	}
973	else
974	{
975	/*
976	* We're doing the job ourselves.
977	*/
978	/* Allocate one page per cpu for the global vt-x and amd-v pages */
979	for (unsigned i = 0; i < RT_ELEMENTS(g_HvmR0.aCpuInfo); i++)
980	{
981	Assert(g_HvmR0.aCpuInfo[i].hMemObj == NIL_RTR0MEMOBJ);
982
983	if (RTMpIsCpuPossible(RTMpCpuIdFromSetIndex(i)))
984	{
985	rc = RTR0MemObjAllocCont(&g_HvmR0.aCpuInfo[i].hMemObj, PAGE_SIZE, true /* executable R0 mapping */);
986	AssertLogRelRCReturn(rc, rc);
987
988	void *pvR0 = RTR0MemObjAddress(g_HvmR0.aCpuInfo[i].hMemObj); Assert(pvR0);
989	ASMMemZeroPage(pvR0);
990	}
991	}
992
993	rc = VINF_SUCCESS;
994	}
995
996	if (RT_SUCCESS(rc) && g_HvmR0.fGlobalInit)
997	{
998	/* First time, so initialize each cpu/core. */
999	HMR0FIRSTRC FirstRc;
1000	hmR0FirstRcInit(&FirstRc);
1001	rc = RTMpOnAll(hmR0EnableCpuCallback, (void *)pVM, &FirstRc);
1002	if (RT_SUCCESS(rc))
1003	rc = hmR0FirstRcGetStatus(&FirstRc);
1004	AssertMsgRC(rc, ("hmR0EnableAllCpuOnce failed for cpu %d with rc=%d\n", hmR0FirstRcGetCpuId(&FirstRc), rc));
1005	}
1006
1007	return rc;
1008	}
1009
1010
1011	/**
1012	* Sets up HM on all cpus.
1013	*
1014	* @returns VBox status code.
1015	* @param pVM Pointer to the VM.
1016	*/
1017	VMMR0_INT_DECL(int) HMR0EnableAllCpus(PVM pVM)
1018	{
1019	/* Make sure we don't touch hm after we've disabled hm in
1020	preparation of a suspend. */
1021	if (ASMAtomicReadBool(&g_HvmR0.fSuspended))
1022	return VERR_HM_SUSPEND_PENDING;
1023
1024	return RTOnce(&g_HvmR0.EnableAllCpusOnce, hmR0EnableAllCpuOnce, pVM);
1025	}
1026
1027
1028	/**
1029	* Disable VT-x or AMD-V on the current CPU.
1030	*
1031	* @returns VBox status code.
1032	* @param idCpu The identifier for the CPU the function is called on.
1033	*/
1034	static int hmR0DisableCpu(RTCPUID idCpu)
1035	{
1036	PHMGLOBLCPUINFO pCpu = &g_HvmR0.aCpuInfo[idCpu];
1037
1038	Assert(!g_HvmR0.vmx.fSupported \|\| !g_HvmR0.vmx.fUsingSUPR0EnableVTx);
1039	Assert(idCpu == (RTCPUID)RTMpCpuIdToSetIndex(idCpu)); /// @todo fix idCpu == index assumption (rainy day)
1040	Assert(idCpu < RT_ELEMENTS(g_HvmR0.aCpuInfo));
1041	Assert(!g_HvmR0.fGlobalInit \|\| ASMAtomicReadBool(&pCpu->fInUse) == false);
1042	Assert(!pCpu->fConfigured \|\| pCpu->hMemObj != NIL_RTR0MEMOBJ);
1043
1044	if (pCpu->hMemObj == NIL_RTR0MEMOBJ)
1045	return pCpu->fConfigured ? VERR_NO_MEMORY : VINF_SUCCESS /* not initialized. */;
1046
1047	int rc;
1048	if (pCpu->fConfigured)
1049	{
1050	void *pvCpuPage = RTR0MemObjAddress(pCpu->hMemObj);
1051	RTHCPHYS HCPhysCpuPage = RTR0MemObjGetPagePhysAddr(pCpu->hMemObj, 0);
1052	if (idCpu == RTMpCpuId())
1053	{
1054	rc = g_HvmR0.pfnDisableCpu(pCpu, pvCpuPage, HCPhysCpuPage);
1055	AssertRC(rc);
1056	}
1057	else
1058	{
1059	pCpu->fIgnoreAMDVInUseError = true;
1060	rc = VINF_SUCCESS;
1061	}
1062
1063	pCpu->fConfigured = false;
1064	}
1065	else
1066	rc = VINF_SUCCESS; /* nothing to do */
1067
1068	pCpu->uCurrentAsid = 0;
1069	return rc;
1070	}
1071
1072
1073	/**
1074	* Worker function passed to RTMpOnAll, RTMpOnOthers and RTMpOnSpecific that
1075	* is to be called on the target cpus.
1076	*
1077	* @param idCpu The identifier for the CPU the function is called on.
1078	* @param pvUser1 The 1st user argument.
1079	* @param pvUser2 The 2nd user argument.
1080	*/
1081	static DECLCALLBACK(void) hmR0DisableCpuCallback(RTCPUID idCpu, void pvUser1, void pvUser2)
1082	{
1083	PHMR0FIRSTRC pFirstRc = (PHMR0FIRSTRC)pvUser2; NOREF(pvUser1);
1084	AssertReturnVoid(g_HvmR0.fGlobalInit);
1085	hmR0FirstRcSetStatus(pFirstRc, hmR0DisableCpu(idCpu));
1086	}
1087
1088
1089	/**
1090	* Callback function invoked when a cpu goes online or offline.
1091	*
1092	* @param enmEvent The Mp event.
1093	* @param idCpu The identifier for the CPU the function is called on.
1094	* @param pvData Opaque data (PVM pointer).
1095	*/
1096	static DECLCALLBACK(void) hmR0MpEventCallback(RTMPEVENT enmEvent, RTCPUID idCpu, void *pvData)
1097	{
1098	NOREF(pvData);
1099
1100	/*
1101	* We only care about uninitializing a CPU that is going offline. When a
1102	* CPU comes online, the initialization is done lazily in HMR0Enter().
1103	*/
1104	Assert(!RTThreadPreemptIsEnabled(NIL_RTTHREAD));
1105	switch (enmEvent)
1106	{
1107	case RTMPEVENT_OFFLINE:
1108	{
1109	int rc = hmR0DisableCpu(idCpu);
1110	AssertRC(rc);
1111	break;
1112	}
1113
1114	default:
1115	break;
1116	}
1117	}
1118
1119
1120	/**
1121	* Called whenever a system power state change occurs.
1122	*
1123	* @param enmEvent The Power event.
1124	* @param pvUser User argument.
1125	*/
1126	static DECLCALLBACK(void) hmR0PowerCallback(RTPOWEREVENT enmEvent, void *pvUser)
1127	{
1128	NOREF(pvUser);
1129	Assert(!g_HvmR0.vmx.fSupported \|\| !g_HvmR0.vmx.fUsingSUPR0EnableVTx);
1130
1131	#ifdef LOG_ENABLED
1132	if (enmEvent == RTPOWEREVENT_SUSPEND)
1133	SUPR0Printf("hmR0PowerCallback RTPOWEREVENT_SUSPEND\n");
1134	else
1135	SUPR0Printf("hmR0PowerCallback RTPOWEREVENT_RESUME\n");
1136	#endif
1137
1138	if (enmEvent == RTPOWEREVENT_SUSPEND)
1139	ASMAtomicWriteBool(&g_HvmR0.fSuspended, true);
1140
1141	if (g_HvmR0.fEnabled)
1142	{
1143	int rc;
1144	HMR0FIRSTRC FirstRc;
1145	hmR0FirstRcInit(&FirstRc);
1146
1147	if (enmEvent == RTPOWEREVENT_SUSPEND)
1148	{
1149	if (g_HvmR0.fGlobalInit)
1150	{
1151	/* Turn off VT-x or AMD-V on all CPUs. */
1152	rc = RTMpOnAll(hmR0DisableCpuCallback, NULL, &FirstRc);
1153	Assert(RT_SUCCESS(rc) \|\| rc == VERR_NOT_SUPPORTED);
1154	}
1155	/* else nothing to do here for the local init case */
1156	}
1157	else
1158	{
1159	/* Reinit the CPUs from scratch as the suspend state might have
1160	messed with the MSRs. (lousy BIOSes as usual) */
1161	if (g_HvmR0.vmx.fSupported)
1162	rc = RTMpOnAll(hmR0InitIntelCpu, &FirstRc, NULL);
1163	else
1164	rc = RTMpOnAll(hmR0InitAmdCpu, &FirstRc, NULL);
1165	Assert(RT_SUCCESS(rc) \|\| rc == VERR_NOT_SUPPORTED);
1166	if (RT_SUCCESS(rc))
1167	rc = hmR0FirstRcGetStatus(&FirstRc);
1168	#ifdef LOG_ENABLED
1169	if (RT_FAILURE(rc))
1170	SUPR0Printf("hmR0PowerCallback hmR0InitXxxCpu failed with %Rc\n", rc);
1171	#endif
1172	if (g_HvmR0.fGlobalInit)
1173	{
1174	/* Turn VT-x or AMD-V back on on all CPUs. */
1175	rc = RTMpOnAll(hmR0EnableCpuCallback, NULL, &FirstRc /* output ignored */);
1176	Assert(RT_SUCCESS(rc) \|\| rc == VERR_NOT_SUPPORTED);
1177	}
1178	/* else nothing to do here for the local init case */
1179	}
1180	}
1181
1182	if (enmEvent == RTPOWEREVENT_RESUME)
1183	ASMAtomicWriteBool(&g_HvmR0.fSuspended, false);
1184	}
1185
1186
1187	/**
1188	* Does Ring-0 per VM HM initialization.
1189	*
1190	* This will copy HM global into the VM structure and call the CPU specific
1191	* init routine which will allocate resources for each virtual CPU and such.
1192	*
1193	* @returns VBox status code.
1194	* @param pVM Pointer to the VM.
1195	*/
1196	VMMR0_INT_DECL(int) HMR0InitVM(PVM pVM)
1197	{
1198	AssertReturn(pVM, VERR_INVALID_PARAMETER);
1199
1200	#ifdef LOG_ENABLED
1201	SUPR0Printf("HMR0InitVM: %p\n", pVM);
1202	#endif
1203
1204	/* Make sure we don't touch hm after we've disabled hm in preparation of a suspend. */
1205	if (ASMAtomicReadBool(&g_HvmR0.fSuspended))
1206	return VERR_HM_SUSPEND_PENDING;
1207
1208	/*
1209	* Copy globals to the VM structure.
1210	*/
1211	pVM->hm.s.vmx.fSupported = g_HvmR0.vmx.fSupported;
1212	pVM->hm.s.svm.fSupported = g_HvmR0.svm.fSupported;
1213
1214	pVM->hm.s.vmx.fUsePreemptTimer = g_HvmR0.vmx.fUsePreemptTimer;
1215	pVM->hm.s.vmx.cPreemptTimerShift = g_HvmR0.vmx.cPreemptTimerShift;
1216	pVM->hm.s.vmx.msr.feature_ctrl = g_HvmR0.vmx.msr.feature_ctrl;
1217	pVM->hm.s.vmx.hostCR4 = g_HvmR0.vmx.hostCR4;
1218	pVM->hm.s.vmx.hostEFER = g_HvmR0.vmx.hostEFER;
1219	pVM->hm.s.vmx.msr.vmx_basic_info = g_HvmR0.vmx.msr.vmx_basic_info;
1220	pVM->hm.s.vmx.msr.vmx_pin_ctls = g_HvmR0.vmx.msr.vmx_pin_ctls;
1221	pVM->hm.s.vmx.msr.vmx_proc_ctls = g_HvmR0.vmx.msr.vmx_proc_ctls;
1222	pVM->hm.s.vmx.msr.vmx_proc_ctls2 = g_HvmR0.vmx.msr.vmx_proc_ctls2;
1223	pVM->hm.s.vmx.msr.vmx_exit = g_HvmR0.vmx.msr.vmx_exit;
1224	pVM->hm.s.vmx.msr.vmx_entry = g_HvmR0.vmx.msr.vmx_entry;
1225	pVM->hm.s.vmx.msr.vmx_misc = g_HvmR0.vmx.msr.vmx_misc;
1226	pVM->hm.s.vmx.msr.vmx_cr0_fixed0 = g_HvmR0.vmx.msr.vmx_cr0_fixed0;
1227	pVM->hm.s.vmx.msr.vmx_cr0_fixed1 = g_HvmR0.vmx.msr.vmx_cr0_fixed1;
1228	pVM->hm.s.vmx.msr.vmx_cr4_fixed0 = g_HvmR0.vmx.msr.vmx_cr4_fixed0;
1229	pVM->hm.s.vmx.msr.vmx_cr4_fixed1 = g_HvmR0.vmx.msr.vmx_cr4_fixed1;
1230	pVM->hm.s.vmx.msr.vmx_vmcs_enum = g_HvmR0.vmx.msr.vmx_vmcs_enum;
1231	pVM->hm.s.vmx.msr.vmx_ept_vpid_caps = g_HvmR0.vmx.msr.vmx_ept_vpid_caps;
1232	pVM->hm.s.svm.msrHwcr = g_HvmR0.svm.msrHwcr;
1233	pVM->hm.s.svm.u32Rev = g_HvmR0.svm.u32Rev;
1234	pVM->hm.s.svm.u32Features = g_HvmR0.svm.u32Features;
1235	pVM->hm.s.cpuid.u32AMDFeatureECX = g_HvmR0.cpuid.u32AMDFeatureECX;
1236	pVM->hm.s.cpuid.u32AMDFeatureEDX = g_HvmR0.cpuid.u32AMDFeatureEDX;
1237	pVM->hm.s.lLastError = g_HvmR0.lLastError;
1238
1239	pVM->hm.s.uMaxAsid = g_HvmR0.uMaxAsid;
1240
1241
1242	if (!pVM->hm.s.cMaxResumeLoops) /* allow ring-3 overrides */
1243	{
1244	pVM->hm.s.cMaxResumeLoops = 1024;
1245	#ifdef VBOX_WITH_VMMR0_DISABLE_PREEMPTION
1246	if (RTThreadPreemptIsPendingTrusty())
1247	pVM->hm.s.cMaxResumeLoops = 8192;
1248	#endif
1249	}
1250
1251	/*
1252	* Initialize some per CPU fields.
1253	*/
1254	for (VMCPUID i = 0; i < pVM->cCpus; i++)
1255	{
1256	PVMCPU pVCpu = &pVM->aCpus[i];
1257
1258	pVCpu->hm.s.idEnteredCpu = NIL_RTCPUID;
1259
1260	/* Invalidate the last cpu we were running on. */
1261	pVCpu->hm.s.idLastCpu = NIL_RTCPUID;
1262
1263	/* We'll aways increment this the first time (host uses ASID 0) */
1264	pVCpu->hm.s.uCurrentAsid = 0;
1265	}
1266
1267	/*
1268	* Call the hardware specific initialization method.
1269	*
1270	* Note! The fInUse handling here isn't correct as we can we can be
1271	* rescheduled to a different cpu, but the fInUse case is mostly for
1272	* debugging... Disabling preemption isn't an option when allocating
1273	* memory, so we'll let it slip for now.
1274	*/
1275	RTCCUINTREG fFlags = ASMIntDisableFlags();
1276	PHMGLOBLCPUINFO pCpu = HMR0GetCurrentCpu();
1277	ASMAtomicWriteBool(&pCpu->fInUse, true);
1278	ASMSetFlags(fFlags);
1279
1280	int rc = g_HvmR0.pfnInitVM(pVM);
1281
1282	ASMAtomicWriteBool(&pCpu->fInUse, false);
1283	return rc;
1284	}
1285
1286
1287	/**
1288	* Does Ring-0 per VM HM termination.
1289	*
1290	* @returns VBox status code.
1291	* @param pVM Pointer to the VM.
1292	*/
1293	VMMR0_INT_DECL(int) HMR0TermVM(PVM pVM)
1294	{
1295	Log(("HMR0TermVM: %p\n", pVM));
1296	AssertReturn(pVM, VERR_INVALID_PARAMETER);
1297
1298	/* Make sure we don't touch hm after we've disabled hm in preparation
1299	of a suspend. */
1300	/** @todo r=bird: This cannot be right, the termination functions are
1301	* just freeing memory and resetting pVM/pVCpu members...
1302	* ==> memory leak. */
1303	AssertReturn(!ASMAtomicReadBool(&g_HvmR0.fSuspended), VERR_HM_SUSPEND_PENDING);
1304
1305	/*
1306	* Call the hardware specific method.
1307	*
1308	* Note! Not correct as we can be rescheduled to a different cpu, but the
1309	* fInUse case is mostly for debugging.
1310	*/
1311	RTCCUINTREG fFlags = ASMIntDisableFlags();
1312	PHMGLOBLCPUINFO pCpu = HMR0GetCurrentCpu();
1313	ASMAtomicWriteBool(&pCpu->fInUse, true);
1314	ASMSetFlags(fFlags);
1315
1316	int rc = g_HvmR0.pfnTermVM(pVM);
1317
1318	ASMAtomicWriteBool(&pCpu->fInUse, false);
1319	return rc;
1320	}
1321
1322
1323	/**
1324	* Sets up a VT-x or AMD-V session.
1325	*
1326	* This is mostly about setting up the hardware VM state.
1327	*
1328	* @returns VBox status code.
1329	* @param pVM Pointer to the VM.
1330	*/
1331	VMMR0_INT_DECL(int) HMR0SetupVM(PVM pVM)
1332	{
1333	Log(("HMR0SetupVM: %p\n", pVM));
1334	AssertReturn(pVM, VERR_INVALID_PARAMETER);
1335
1336	/* Make sure we don't touch hm after we've disabled hm in
1337	preparation of a suspend. */
1338	AssertReturn(!ASMAtomicReadBool(&g_HvmR0.fSuspended), VERR_HM_SUSPEND_PENDING);
1339
1340
1341	/*
1342	* Call the hardware specific setup VM method. This requires the CPU to be
1343	* enabled for AMD-V/VT-x and preemption to be prevented.
1344	*/
1345	RTCCUINTREG fFlags = ASMIntDisableFlags();
1346	RTCPUID idCpu = RTMpCpuId();
1347	PHMGLOBLCPUINFO pCpu = &g_HvmR0.aCpuInfo[idCpu];
1348	ASMAtomicWriteBool(&pCpu->fInUse, true);
1349
1350	/* On first entry we'll sync everything. */
1351	for (VMCPUID i = 0; i < pVM->cCpus; i++)
1352	pVM->aCpus[i].hm.s.fContextUseFlags = HM_CHANGED_ALL;
1353
1354	/* Enable VT-x or AMD-V if local init is required. */
1355	int rc;
1356	if (!g_HvmR0.fGlobalInit)
1357	{
1358	rc = hmR0EnableCpu(pVM, idCpu);
1359	AssertReturnStmt(RT_SUCCESS_NP(rc), ASMSetFlags(fFlags), rc);
1360	}
1361
1362	/* Setup VT-x or AMD-V. */
1363	rc = g_HvmR0.pfnSetupVM(pVM);
1364
1365	/* Disable VT-x or AMD-V if local init was done before. */
1366	if (!g_HvmR0.fGlobalInit)
1367	{
1368	int rc2 = hmR0DisableCpu(idCpu);
1369	AssertRC(rc2);
1370	}
1371
1372	ASMAtomicWriteBool(&pCpu->fInUse, false);
1373	ASMSetFlags(fFlags);
1374
1375	return rc;
1376	}
1377
1378
1379	/**
1380	* Enters the VT-x or AMD-V session.
1381	*
1382	* @returns VBox status code.
1383	* @param pVM Pointer to the VM.
1384	* @param pVCpu Pointer to the VMCPU.
1385	*
1386	* @remarks This is called with preemption disabled.
1387	*/
1388	VMMR0_INT_DECL(int) HMR0Enter(PVM pVM, PVMCPU pVCpu)
1389	{
1390	RTCPUID idCpu = RTMpCpuId();
1391	PHMGLOBLCPUINFO pCpu = &g_HvmR0.aCpuInfo[idCpu];
1392
1393	/* Make sure we can't enter a session after we've disabled HM in preparation of a suspend. */
1394	AssertReturn(!ASMAtomicReadBool(&g_HvmR0.fSuspended), VERR_HM_SUSPEND_PENDING);
1395	ASMAtomicWriteBool(&pCpu->fInUse, true);
1396
1397	AssertMsg(pVCpu->hm.s.idEnteredCpu == NIL_RTCPUID, ("%d", (int)pVCpu->hm.s.idEnteredCpu));
1398	pVCpu->hm.s.idEnteredCpu = idCpu;
1399
1400	PCPUMCTX pCtx = CPUMQueryGuestCtxPtr(pVCpu);
1401
1402	/* Always load the guest's FPU/XMM state on-demand. */
1403	CPUMDeactivateGuestFPUState(pVCpu);
1404
1405	/* Always load the guest's debug state on-demand. */
1406	CPUMDeactivateGuestDebugState(pVCpu);
1407
1408	/* Always reload the host context and the guest's CR0 register (for the FPU bits). */
1409	pVCpu->hm.s.fContextUseFlags \|= HM_CHANGED_GUEST_CR0 \| HM_CHANGED_HOST_CONTEXT;
1410
1411	/* Setup the register and mask according to the current execution mode. */
1412	if (pCtx->msrEFER & MSR_K6_EFER_LMA)
1413	pVM->hm.s.u64RegisterMask = UINT64_C(0xFFFFFFFFFFFFFFFF);
1414	else
1415	pVM->hm.s.u64RegisterMask = UINT64_C(0xFFFFFFFF);
1416
1417	/* Enable VT-x or AMD-V if local init is required, or enable if it's a
1418	freshly onlined CPU. */
1419	int rc;
1420	if ( !pCpu->fConfigured
1421	\|\| !g_HvmR0.fGlobalInit)
1422	{
1423	rc = hmR0EnableCpu(pVM, idCpu);
1424	AssertRCReturn(rc, rc);
1425	}
1426
1427	#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
1428	bool fStartedSet = PGMR0DynMapStartOrMigrateAutoSet(pVCpu);
1429	#endif
1430
1431	rc = g_HvmR0.pfnEnterSession(pVM, pVCpu, pCpu);
1432	AssertRC(rc);
1433	/* We must save the host context here (VT-x) as we might be rescheduled on
1434	a different cpu after a long jump back to ring 3. */
1435	rc \|= g_HvmR0.pfnSaveHostState(pVM, pVCpu);
1436	AssertRC(rc);
1437	rc \|= g_HvmR0.pfnLoadGuestState(pVM, pVCpu, pCtx);
1438	AssertRC(rc);
1439
1440	#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
1441	if (fStartedSet)
1442	PGMRZDynMapReleaseAutoSet(pVCpu);
1443	#endif
1444
1445	/* Keep track of the CPU owning the VMCS for debugging scheduling weirdness
1446	and ring-3 calls. */
1447	if (RT_FAILURE(rc))
1448	pVCpu->hm.s.idEnteredCpu = NIL_RTCPUID;
1449	return rc;
1450	}
1451
1452
1453	/**
1454	* Leaves the VT-x or AMD-V session.
1455	*
1456	* @returns VBox status code.
1457	* @param pVM Pointer to the VM.
1458	* @param pVCpu Pointer to the VMCPU.
1459	*
1460	* @remarks Called with preemption disabled just like HMR0Enter, our
1461	* counterpart.
1462	*/
1463	VMMR0_INT_DECL(int) HMR0Leave(PVM pVM, PVMCPU pVCpu)
1464	{
1465	int rc;
1466	RTCPUID idCpu = RTMpCpuId();
1467	PHMGLOBLCPUINFO pCpu = &g_HvmR0.aCpuInfo[idCpu];
1468	PCPUMCTX pCtx = CPUMQueryGuestCtxPtr(pVCpu);
1469
1470	/** @todo r=bird: This can't be entirely right? */
1471	AssertReturn(!ASMAtomicReadBool(&g_HvmR0.fSuspended), VERR_HM_SUSPEND_PENDING);
1472
1473	/*
1474	* Save the guest FPU and XMM state if necessary.
1475	*
1476	* Note! It's rather tricky with longjmps done by e.g. Log statements or
1477	* the page fault handler. We must restore the host FPU here to make
1478	* absolutely sure we don't leave the guest FPU state active or trash
1479	* somebody else's FPU state.
1480	*/
1481	if (CPUMIsGuestFPUStateActive(pVCpu))
1482	{
1483	Log2(("CPUMR0SaveGuestFPU\n"));
1484	CPUMR0SaveGuestFPU(pVM, pVCpu, pCtx);
1485
1486	pVCpu->hm.s.fContextUseFlags \|= HM_CHANGED_GUEST_CR0; /** @todo r=bird: Why HM_CHANGED_GUEST_CR0?? */
1487	Assert(!CPUMIsGuestFPUStateActive(pVCpu));
1488	}
1489
1490	rc = g_HvmR0.pfnLeaveSession(pVM, pVCpu, pCtx);
1491
1492	/* We don't pass on invlpg information to the recompiler for nested paging
1493	guests, so we must make sure the recompiler flushes its TLB the next
1494	time it executes code. */
1495	if ( pVM->hm.s.fNestedPaging
1496	#ifdef VBOX_WITH_OLD_VTX_CODE
1497	&& CPUMIsGuestInPagedProtectedModeEx(pCtx)
1498	#else
1499	&& CPUMIsGuestPagingEnabledEx(pCtx)
1500	#endif
1501	)
1502	{
1503	CPUMSetChangedFlags(pVCpu, CPUM_CHANGED_GLOBAL_TLB_FLUSH);
1504	}
1505
1506	/* Keep track of the CPU owning the VMCS for debugging scheduling weirdness
1507	and ring-3 calls. */
1508	AssertMsgStmt( pVCpu->hm.s.idEnteredCpu == idCpu
1509	\|\| RT_FAILURE_NP(rc),
1510	("Owner is %u, I'm %u", pVCpu->hm.s.idEnteredCpu, idCpu),
1511	rc = VERR_HM_WRONG_CPU_1);
1512	pVCpu->hm.s.idEnteredCpu = NIL_RTCPUID;
1513
1514	/*
1515	* Disable VT-x or AMD-V if local init was done before.
1516	*/
1517	if (!g_HvmR0.fGlobalInit)
1518	{
1519	rc = hmR0DisableCpu(idCpu);
1520	AssertRC(rc);
1521
1522	/* Reset these to force a TLB flush for the next entry. (-> EXPENSIVE) */
1523	pVCpu->hm.s.idLastCpu = NIL_RTCPUID;
1524	pVCpu->hm.s.uCurrentAsid = 0;
1525	VMCPU_FF_SET(pVCpu, VMCPU_FF_TLB_FLUSH);
1526	}
1527
1528	ASMAtomicWriteBool(&pCpu->fInUse, false);
1529	return rc;
1530	}
1531
1532
1533	/**
1534	* Runs guest code in a hardware accelerated VM.
1535	*
1536	* @returns VBox status code.
1537	* @param pVM Pointer to the VM.
1538	* @param pVCpu Pointer to the VMCPU.
1539	*
1540	* @remarks Called with preemption disabled and after first having called
1541	* HMR0Enter.
1542	*/
1543	VMMR0_INT_DECL(int) HMR0RunGuestCode(PVM pVM, PVMCPU pVCpu)
1544	{
1545	#ifdef VBOX_STRICT
1546	PHMGLOBLCPUINFO pCpu = &g_HvmR0.aCpuInfo[RTMpCpuId()];
1547	Assert(!VMCPU_FF_ISPENDING(pVCpu, VMCPU_FF_PGM_SYNC_CR3 \| VMCPU_FF_PGM_SYNC_CR3_NON_GLOBAL));
1548	Assert(pCpu->fConfigured);
1549	AssertReturn(!ASMAtomicReadBool(&g_HvmR0.fSuspended), VERR_HM_SUSPEND_PENDING);
1550	Assert(ASMAtomicReadBool(&pCpu->fInUse) == true);
1551	#endif
1552
1553	#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
1554	PGMRZDynMapStartAutoSet(pVCpu);
1555	#endif
1556
1557	int rc = g_HvmR0.pfnRunGuestCode(pVM, pVCpu, CPUMQueryGuestCtxPtr(pVCpu));
1558
1559	#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
1560	PGMRZDynMapReleaseAutoSet(pVCpu);
1561	#endif
1562	return rc;
1563	}
1564
1565	#if HC_ARCH_BITS == 32 && defined(VBOX_ENABLE_64_BITS_GUESTS) && !defined(VBOX_WITH_HYBRID_32BIT_KERNEL)
1566
1567	/**
1568	* Save guest FPU/XMM state (64 bits guest mode & 32 bits host only)
1569	*
1570	* @returns VBox status code.
1571	* @param pVM Pointer to the VM.
1572	* @param pVCpu Pointer to the VMCPU.
1573	* @param pCtx Pointer to the guest CPU context.
1574	*/
1575	VMMR0_INT_DECL(int) HMR0SaveFPUState(PVM pVM, PVMCPU pVCpu, PCPUMCTX pCtx)
1576	{
1577	STAM_COUNTER_INC(&pVCpu->hm.s.StatFpu64SwitchBack);
1578	if (pVM->hm.s.vmx.fSupported)
1579	return VMXR0Execute64BitsHandler(pVM, pVCpu, pCtx, HM64ON32OP_HMRCSaveGuestFPU64, 0, NULL);
1580	return SVMR0Execute64BitsHandler(pVM, pVCpu, pCtx, HM64ON32OP_HMRCSaveGuestFPU64, 0, NULL);
1581	}
1582
1583
1584	/**
1585	* Save guest debug state (64 bits guest mode & 32 bits host only)
1586	*
1587	* @returns VBox status code.
1588	* @param pVM Pointer to the VM.
1589	* @param pVCpu Pointer to the VMCPU.
1590	* @param pCtx Pointer to the guest CPU context.
1591	*/
1592	VMMR0_INT_DECL(int) HMR0SaveDebugState(PVM pVM, PVMCPU pVCpu, PCPUMCTX pCtx)
1593	{
1594	STAM_COUNTER_INC(&pVCpu->hm.s.StatDebug64SwitchBack);
1595	if (pVM->hm.s.vmx.fSupported)
1596	return VMXR0Execute64BitsHandler(pVM, pVCpu, pCtx, HM64ON32OP_HMRCSaveGuestDebug64, 0, NULL);
1597	return SVMR0Execute64BitsHandler(pVM, pVCpu, pCtx, HM64ON32OP_HMRCSaveGuestDebug64, 0, NULL);
1598	}
1599
1600
1601	/**
1602	* Test the 32->64 bits switcher.
1603	*
1604	* @returns VBox status code.
1605	* @param pVM Pointer to the VM.
1606	*/
1607	VMMR0_INT_DECL(int) HMR0TestSwitcher3264(PVM pVM)
1608	{
1609	PVMCPU pVCpu = &pVM->aCpus[0];
1610	PCPUMCTX pCtx = CPUMQueryGuestCtxPtr(pVCpu);
1611	uint32_t aParam[5] = {0, 1, 2, 3, 4};
1612	int rc;
1613
1614	STAM_PROFILE_ADV_START(&pVCpu->hm.s.StatWorldSwitch3264, z);
1615	if (pVM->hm.s.vmx.fSupported)
1616	rc = VMXR0Execute64BitsHandler(pVM, pVCpu, pCtx, HM64ON32OP_HMRCTestSwitcher64, 5, &aParam[0]);
1617	else
1618	rc = SVMR0Execute64BitsHandler(pVM, pVCpu, pCtx, HM64ON32OP_HMRCTestSwitcher64, 5, &aParam[0]);
1619	STAM_PROFILE_ADV_STOP(&pVCpu->hm.s.StatWorldSwitch3264, z);
1620
1621	return rc;
1622	}
1623
1624	#endif /* HC_ARCH_BITS == 32 && defined(VBOX_WITH_64_BITS_GUESTS) && !defined(VBOX_WITH_HYBRID_32BIT_KERNEL) */
1625
1626	/**
1627	* Returns suspend status of the host.
1628	*
1629	* @returns Suspend pending or not.
1630	*/
1631	VMMR0_INT_DECL(bool) HMR0SuspendPending(void)
1632	{
1633	return ASMAtomicReadBool(&g_HvmR0.fSuspended);
1634	}
1635
1636
1637	/**
1638	* Returns the cpu structure for the current cpu.
1639	* Keep in mind that there is no guarantee it will stay the same (long jumps to ring 3!!!).
1640	*
1641	* @returns The cpu structure pointer.
1642	*/
1643	VMMR0DECL(PHMGLOBLCPUINFO) HMR0GetCurrentCpu(void)
1644	{
1645	RTCPUID idCpu = RTMpCpuId();
1646	Assert(idCpu < RT_ELEMENTS(g_HvmR0.aCpuInfo));
1647	return &g_HvmR0.aCpuInfo[idCpu];
1648	}
1649
1650
1651	/**
1652	* Returns the cpu structure for the current cpu.
1653	* Keep in mind that there is no guarantee it will stay the same (long jumps to ring 3!!!).
1654	*
1655	* @returns The cpu structure pointer.
1656	* @param idCpu id of the VCPU.
1657	*/
1658	VMMR0DECL(PHMGLOBLCPUINFO) HMR0GetCurrentCpuEx(RTCPUID idCpu)
1659	{
1660	Assert(idCpu < RT_ELEMENTS(g_HvmR0.aCpuInfo));
1661	return &g_HvmR0.aCpuInfo[idCpu];
1662	}
1663
1664
1665	/**
1666	* Save a pending IO read.
1667	*
1668	* @param pVCpu Pointer to the VMCPU.
1669	* @param GCPtrRip Address of IO instruction.
1670	* @param GCPtrRipNext Address of the next instruction.
1671	* @param uPort Port address.
1672	* @param uAndVal AND mask for saving the result in eax.
1673	* @param cbSize Read size.
1674	*/
1675	VMMR0_INT_DECL(void) HMR0SavePendingIOPortRead(PVMCPU pVCpu, RTGCPTR GCPtrRip, RTGCPTR GCPtrRipNext,
1676	unsigned uPort, unsigned uAndVal, unsigned cbSize)
1677	{
1678	pVCpu->hm.s.PendingIO.enmType = HMPENDINGIO_PORT_READ;
1679	pVCpu->hm.s.PendingIO.GCPtrRip = GCPtrRip;
1680	pVCpu->hm.s.PendingIO.GCPtrRipNext = GCPtrRipNext;
1681	pVCpu->hm.s.PendingIO.s.Port.uPort = uPort;
1682	pVCpu->hm.s.PendingIO.s.Port.uAndVal = uAndVal;
1683	pVCpu->hm.s.PendingIO.s.Port.cbSize = cbSize;
1684	return;
1685	}
1686
1687
1688	/**
1689	* Save a pending IO write.
1690	*
1691	* @param pVCpu Pointer to the VMCPU.
1692	* @param GCPtrRIP Address of IO instruction.
1693	* @param uPort Port address.
1694	* @param uAndVal AND mask for fetching the result from eax.
1695	* @param cbSize Read size.
1696	*/
1697	VMMR0_INT_DECL(void) HMR0SavePendingIOPortWrite(PVMCPU pVCpu, RTGCPTR GCPtrRip, RTGCPTR GCPtrRipNext,
1698	unsigned uPort, unsigned uAndVal, unsigned cbSize)
1699	{
1700	pVCpu->hm.s.PendingIO.enmType = HMPENDINGIO_PORT_WRITE;
1701	pVCpu->hm.s.PendingIO.GCPtrRip = GCPtrRip;
1702	pVCpu->hm.s.PendingIO.GCPtrRipNext = GCPtrRipNext;
1703	pVCpu->hm.s.PendingIO.s.Port.uPort = uPort;
1704	pVCpu->hm.s.PendingIO.s.Port.uAndVal = uAndVal;
1705	pVCpu->hm.s.PendingIO.s.Port.cbSize = cbSize;
1706	return;
1707	}
1708
1709
1710	/**
1711	* Raw-mode switcher hook - disable VT-x if it's active and the current
1712	* switcher turns off paging.
1713	*
1714	* @returns VBox status code.
1715	* @param pVM Pointer to the VM.
1716	* @param enmSwitcher The switcher we're about to use.
1717	* @param pfVTxDisabled Where to store whether VT-x was disabled or not.
1718	*/
1719	VMMR0_INT_DECL(int) HMR0EnterSwitcher(PVM pVM, VMMSWITCHER enmSwitcher, bool *pfVTxDisabled)
1720	{
1721	Assert(!(ASMGetFlags() & X86_EFL_IF) \|\| !RTThreadPreemptIsEnabled(NIL_RTTHREAD));
1722
1723	*pfVTxDisabled = false;
1724
1725	/* No such issues with AMD-V */
1726	if (!g_HvmR0.vmx.fSupported)
1727	return VINF_SUCCESS;
1728
1729	/* Check if the swithcing we're up to is safe. */
1730	switch (enmSwitcher)
1731	{
1732	case VMMSWITCHER_32_TO_32:
1733	case VMMSWITCHER_PAE_TO_PAE:
1734	return VINF_SUCCESS; /* safe switchers as they don't turn off paging */
1735
1736	case VMMSWITCHER_32_TO_PAE:
1737	case VMMSWITCHER_PAE_TO_32: /* is this one actually used?? */
1738	case VMMSWITCHER_AMD64_TO_32:
1739	case VMMSWITCHER_AMD64_TO_PAE:
1740	break; /* unsafe switchers */
1741
1742	default:
1743	AssertFailedReturn(VERR_HM_WRONG_SWITCHER);
1744	}
1745
1746	/* When using SUPR0EnableVTx we must let the host suspend and resume VT-x,
1747	regardless of whether we're currently using VT-x or not. */
1748	if (g_HvmR0.vmx.fUsingSUPR0EnableVTx)
1749	{
1750	*pfVTxDisabled = SUPR0SuspendVTxOnCpu();
1751	return VINF_SUCCESS;
1752	}
1753
1754	/** @todo Check if this code is presumtive wrt other VT-x users on the
1755	* system... */
1756
1757	/* Nothing to do if we haven't enabled VT-x. */
1758	if (!g_HvmR0.fEnabled)
1759	return VINF_SUCCESS;
1760
1761	/* Local init implies the CPU is currently not in VMX root mode. */
1762	if (!g_HvmR0.fGlobalInit)
1763	return VINF_SUCCESS;
1764
1765	/* Ok, disable VT-x. */
1766	PHMGLOBLCPUINFO pCpu = HMR0GetCurrentCpu();
1767	AssertReturn(pCpu && pCpu->hMemObj != NIL_RTR0MEMOBJ, VERR_HM_IPE_2);
1768
1769	*pfVTxDisabled = true;
1770	void *pvCpuPage = RTR0MemObjAddress(pCpu->hMemObj);
1771	RTHCPHYS HCPhysCpuPage = RTR0MemObjGetPagePhysAddr(pCpu->hMemObj, 0);
1772	return VMXR0DisableCpu(pCpu, pvCpuPage, HCPhysCpuPage);
1773	}
1774
1775
1776	/**
1777	* Raw-mode switcher hook - re-enable VT-x if was active and the current
1778	* switcher turned off paging.
1779	*
1780	* @param pVM Pointer to the VM.
1781	* @param fVTxDisabled Whether VT-x was disabled or not.
1782	*/
1783	VMMR0_INT_DECL(void) HMR0LeaveSwitcher(PVM pVM, bool fVTxDisabled)
1784	{
1785	Assert(!(ASMGetFlags() & X86_EFL_IF));
1786
1787	if (!fVTxDisabled)
1788	return; /* nothing to do */
1789
1790	Assert(g_HvmR0.vmx.fSupported);
1791	if (g_HvmR0.vmx.fUsingSUPR0EnableVTx)
1792	SUPR0ResumeVTxOnCpu(fVTxDisabled);
1793	else
1794	{
1795	Assert(g_HvmR0.fEnabled);
1796	Assert(g_HvmR0.fGlobalInit);
1797
1798	PHMGLOBLCPUINFO pCpu = HMR0GetCurrentCpu();
1799	AssertReturnVoid(pCpu && pCpu->hMemObj != NIL_RTR0MEMOBJ);
1800
1801	void *pvCpuPage = RTR0MemObjAddress(pCpu->hMemObj);
1802	RTHCPHYS HCPhysCpuPage = RTR0MemObjGetPagePhysAddr(pCpu->hMemObj, 0);
1803	VMXR0EnableCpu(pCpu, pVM, pvCpuPage, HCPhysCpuPage, false);
1804	}
1805	}
1806
1807	#ifdef VBOX_STRICT
1808
1809	/**
1810	* Dumps a descriptor.
1811	*
1812	* @param pDesc Descriptor to dump.
1813	* @param Sel Selector number.
1814	* @param pszMsg Message to prepend the log entry with.
1815	*/
1816	VMMR0DECL(void) HMR0DumpDescriptor(PCX86DESCHC pDesc, RTSEL Sel, const char *pszMsg)
1817	{
1818	/*
1819	* Make variable description string.
1820	*/
1821	static struct
1822	{
1823	unsigned cch;
1824	const char *psz;
1825	} const s_aTypes[32] =
1826	{
1827	# define STRENTRY(str) { sizeof(str) - 1, str }
1828
1829	/* system */
1830	# if HC_ARCH_BITS == 64
1831	STRENTRY("Reserved0 "), /* 0x00 */
1832	STRENTRY("Reserved1 "), /* 0x01 */
1833	STRENTRY("LDT "), /* 0x02 */
1834	STRENTRY("Reserved3 "), /* 0x03 */
1835	STRENTRY("Reserved4 "), /* 0x04 */
1836	STRENTRY("Reserved5 "), /* 0x05 */
1837	STRENTRY("Reserved6 "), /* 0x06 */
1838	STRENTRY("Reserved7 "), /* 0x07 */
1839	STRENTRY("Reserved8 "), /* 0x08 */
1840	STRENTRY("TSS64Avail "), /* 0x09 */
1841	STRENTRY("ReservedA "), /* 0x0a */
1842	STRENTRY("TSS64Busy "), /* 0x0b */
1843	STRENTRY("Call64 "), /* 0x0c */
1844	STRENTRY("ReservedD "), /* 0x0d */
1845	STRENTRY("Int64 "), /* 0x0e */
1846	STRENTRY("Trap64 "), /* 0x0f */
1847	# else
1848	STRENTRY("Reserved0 "), /* 0x00 */
1849	STRENTRY("TSS16Avail "), /* 0x01 */
1850	STRENTRY("LDT "), /* 0x02 */
1851	STRENTRY("TSS16Busy "), /* 0x03 */
1852	STRENTRY("Call16 "), /* 0x04 */
1853	STRENTRY("Task "), /* 0x05 */
1854	STRENTRY("Int16 "), /* 0x06 */
1855	STRENTRY("Trap16 "), /* 0x07 */
1856	STRENTRY("Reserved8 "), /* 0x08 */
1857	STRENTRY("TSS32Avail "), /* 0x09 */
1858	STRENTRY("ReservedA "), /* 0x0a */
1859	STRENTRY("TSS32Busy "), /* 0x0b */
1860	STRENTRY("Call32 "), /* 0x0c */
1861	STRENTRY("ReservedD "), /* 0x0d */
1862	STRENTRY("Int32 "), /* 0x0e */
1863	STRENTRY("Trap32 "), /* 0x0f */
1864	# endif
1865	/* non system */
1866	STRENTRY("DataRO "), /* 0x10 */
1867	STRENTRY("DataRO Accessed "), /* 0x11 */
1868	STRENTRY("DataRW "), /* 0x12 */
1869	STRENTRY("DataRW Accessed "), /* 0x13 */
1870	STRENTRY("DataDownRO "), /* 0x14 */
1871	STRENTRY("DataDownRO Accessed "), /* 0x15 */
1872	STRENTRY("DataDownRW "), /* 0x16 */
1873	STRENTRY("DataDownRW Accessed "), /* 0x17 */
1874	STRENTRY("CodeEO "), /* 0x18 */
1875	STRENTRY("CodeEO Accessed "), /* 0x19 */
1876	STRENTRY("CodeER "), /* 0x1a */
1877	STRENTRY("CodeER Accessed "), /* 0x1b */
1878	STRENTRY("CodeConfEO "), /* 0x1c */
1879	STRENTRY("CodeConfEO Accessed "), /* 0x1d */
1880	STRENTRY("CodeConfER "), /* 0x1e */
1881	STRENTRY("CodeConfER Accessed ") /* 0x1f */
1882	# undef SYSENTRY
1883	};
1884	# define ADD_STR(psz, pszAdd) do { strcpy(psz, pszAdd); psz += strlen(pszAdd); } while (0)
1885	char szMsg[128];
1886	char *psz = &szMsg[0];
1887	unsigned i = pDesc->Gen.u1DescType << 4 \| pDesc->Gen.u4Type;
1888	memcpy(psz, s_aTypes[i].psz, s_aTypes[i].cch);
1889	psz += s_aTypes[i].cch;
1890
1891	if (pDesc->Gen.u1Present)
1892	ADD_STR(psz, "Present ");
1893	else
1894	ADD_STR(psz, "Not-Present ");
1895	# if HC_ARCH_BITS == 64
1896	if (pDesc->Gen.u1Long)
1897	ADD_STR(psz, "64-bit ");
1898	else
1899	ADD_STR(psz, "Comp ");
1900	# else
1901	if (pDesc->Gen.u1Granularity)
1902	ADD_STR(psz, "Page ");
1903	if (pDesc->Gen.u1DefBig)
1904	ADD_STR(psz, "32-bit ");
1905	else
1906	ADD_STR(psz, "16-bit ");
1907	# endif
1908	# undef ADD_STR
1909	*psz = '\0';
1910
1911	/*
1912	* Limit and Base and format the output.
1913	*/
1914	uint32_t u32Limit = X86DESC_LIMIT_G(pDesc);
1915
1916	# if HC_ARCH_BITS == 64
1917	uint64_t u32Base = X86DESC64_BASE(pDesc);
1918
1919	Log(("%s %04x - %RX64 %RX64 - base=%RX64 limit=%08x dpl=%d %s\n", pszMsg,
1920	Sel, pDesc->au64[0], pDesc->au64[1], u32Base, u32Limit, pDesc->Gen.u2Dpl, szMsg));
1921	# else
1922	uint32_t u32Base = X86DESC_BASE(pDesc);
1923
1924	Log(("%s %04x - %08x %08x - base=%08x limit=%08x dpl=%d %s\n", pszMsg,
1925	Sel, pDesc->au32[0], pDesc->au32[1], u32Base, u32Limit, pDesc->Gen.u2Dpl, szMsg));
1926	# endif
1927	}
1928
1929
1930	/**
1931	* Formats a full register dump.
1932	*
1933	* @param pVM Pointer to the VM.
1934	* @param pVCpu Pointer to the VMCPU.
1935	* @param pCtx Pointer to the CPU context.
1936	*/
1937	VMMR0DECL(void) HMDumpRegs(PVM pVM, PVMCPU pVCpu, PCPUMCTX pCtx)
1938	{
1939	NOREF(pVM);
1940
1941	/*
1942	* Format the flags.
1943	*/
1944	static struct
1945	{
1946	const char pszSet; const char pszClear; uint32_t fFlag;
1947	} const s_aFlags[] =
1948	{
1949	{ "vip",NULL, X86_EFL_VIP },
1950	{ "vif",NULL, X86_EFL_VIF },
1951	{ "ac", NULL, X86_EFL_AC },
1952	{ "vm", NULL, X86_EFL_VM },
1953	{ "rf", NULL, X86_EFL_RF },
1954	{ "nt", NULL, X86_EFL_NT },
1955	{ "ov", "nv", X86_EFL_OF },
1956	{ "dn", "up", X86_EFL_DF },
1957	{ "ei", "di", X86_EFL_IF },
1958	{ "tf", NULL, X86_EFL_TF },
1959	{ "nt", "pl", X86_EFL_SF },
1960	{ "nz", "zr", X86_EFL_ZF },
1961	{ "ac", "na", X86_EFL_AF },
1962	{ "po", "pe", X86_EFL_PF },
1963	{ "cy", "nc", X86_EFL_CF },
1964	};
1965	char szEFlags[80];
1966	char *psz = szEFlags;
1967	uint32_t efl = pCtx->eflags.u32;
1968	for (unsigned i = 0; i < RT_ELEMENTS(s_aFlags); i++)
1969	{
1970	const char *pszAdd = s_aFlags[i].fFlag & efl ? s_aFlags[i].pszSet : s_aFlags[i].pszClear;
1971	if (pszAdd)
1972	{
1973	strcpy(psz, pszAdd);
1974	psz += strlen(pszAdd);
1975	*psz++ = ' ';
1976	}
1977	}
1978	psz[-1] = '\0';
1979
1980
1981	/*
1982	* Format the registers.
1983	*/
1984	if (CPUMIsGuestIn64BitCode(pVCpu))
1985	{
1986	Log(("rax=%016RX64 rbx=%016RX64 rcx=%016RX64 rdx=%016RX64\n"
1987	"rsi=%016RX64 rdi=%016RX64 r8 =%016RX64 r9 =%016RX64\n"
1988	"r10=%016RX64 r11=%016RX64 r12=%016RX64 r13=%016RX64\n"
1989	"r14=%016RX64 r15=%016RX64\n"
1990	"rip=%016RX64 rsp=%016RX64 rbp=%016RX64 iopl=%d %*s\n"
1991	"cs={%04x base=%016RX64 limit=%08x flags=%08x}\n"
1992	"ds={%04x base=%016RX64 limit=%08x flags=%08x}\n"
1993	"es={%04x base=%016RX64 limit=%08x flags=%08x}\n"
1994	"fs={%04x base=%016RX64 limit=%08x flags=%08x}\n"
1995	"gs={%04x base=%016RX64 limit=%08x flags=%08x}\n"
1996	"ss={%04x base=%016RX64 limit=%08x flags=%08x}\n"
1997	"cr0=%016RX64 cr2=%016RX64 cr3=%016RX64 cr4=%016RX64\n"
1998	"dr0=%016RX64 dr1=%016RX64 dr2=%016RX64 dr3=%016RX64\n"
1999	"dr4=%016RX64 dr5=%016RX64 dr6=%016RX64 dr7=%016RX64\n"
2000	"gdtr=%016RX64:%04x idtr=%016RX64:%04x eflags=%08x\n"
2001	"ldtr={%04x base=%08RX64 limit=%08x flags=%08x}\n"
2002	"tr ={%04x base=%08RX64 limit=%08x flags=%08x}\n"
2003	"SysEnter={cs=%04llx eip=%08llx esp=%08llx}\n"
2004	,
2005	pCtx->rax, pCtx->rbx, pCtx->rcx, pCtx->rdx, pCtx->rsi, pCtx->rdi,
2006	pCtx->r8, pCtx->r9, pCtx->r10, pCtx->r11, pCtx->r12, pCtx->r13,
2007	pCtx->r14, pCtx->r15,
2008	pCtx->rip, pCtx->rsp, pCtx->rbp, X86_EFL_GET_IOPL(efl), 31, szEFlags,
2009	pCtx->cs.Sel, pCtx->cs.u64Base, pCtx->cs.u32Limit, pCtx->cs.Attr.u,
2010	pCtx->ds.Sel, pCtx->ds.u64Base, pCtx->ds.u32Limit, pCtx->ds.Attr.u,
2011	pCtx->es.Sel, pCtx->es.u64Base, pCtx->es.u32Limit, pCtx->es.Attr.u,
2012	pCtx->fs.Sel, pCtx->fs.u64Base, pCtx->fs.u32Limit, pCtx->fs.Attr.u,
2013	pCtx->gs.Sel, pCtx->gs.u64Base, pCtx->gs.u32Limit, pCtx->gs.Attr.u,
2014	pCtx->ss.Sel, pCtx->ss.u64Base, pCtx->ss.u32Limit, pCtx->ss.Attr.u,
2015	pCtx->cr0, pCtx->cr2, pCtx->cr3, pCtx->cr4,
2016	pCtx->dr[0], pCtx->dr[1], pCtx->dr[2], pCtx->dr[3],
2017	pCtx->dr[4], pCtx->dr[5], pCtx->dr[6], pCtx->dr[7],
2018	pCtx->gdtr.pGdt, pCtx->gdtr.cbGdt, pCtx->idtr.pIdt, pCtx->idtr.cbIdt, efl,
2019	pCtx->ldtr.Sel, pCtx->ldtr.u64Base, pCtx->ldtr.u32Limit, pCtx->ldtr.Attr.u,
2020	pCtx->tr.Sel, pCtx->tr.u64Base, pCtx->tr.u32Limit, pCtx->tr.Attr.u,
2021	pCtx->SysEnter.cs, pCtx->SysEnter.eip, pCtx->SysEnter.esp));
2022	}
2023	else
2024	Log(("eax=%08x ebx=%08x ecx=%08x edx=%08x esi=%08x edi=%08x\n"
2025	"eip=%08x esp=%08x ebp=%08x iopl=%d %*s\n"
2026	"cs={%04x base=%016RX64 limit=%08x flags=%08x} dr0=%08RX64 dr1=%08RX64\n"
2027	"ds={%04x base=%016RX64 limit=%08x flags=%08x} dr2=%08RX64 dr3=%08RX64\n"
2028	"es={%04x base=%016RX64 limit=%08x flags=%08x} dr4=%08RX64 dr5=%08RX64\n"
2029	"fs={%04x base=%016RX64 limit=%08x flags=%08x} dr6=%08RX64 dr7=%08RX64\n"
2030	"gs={%04x base=%016RX64 limit=%08x flags=%08x} cr0=%08RX64 cr2=%08RX64\n"
2031	"ss={%04x base=%016RX64 limit=%08x flags=%08x} cr3=%08RX64 cr4=%08RX64\n"
2032	"gdtr=%016RX64:%04x idtr=%016RX64:%04x eflags=%08x\n"
2033	"ldtr={%04x base=%08RX64 limit=%08x flags=%08x}\n"
2034	"tr ={%04x base=%08RX64 limit=%08x flags=%08x}\n"
2035	"SysEnter={cs=%04llx eip=%08llx esp=%08llx}\n"
2036	,
2037	pCtx->eax, pCtx->ebx, pCtx->ecx, pCtx->edx, pCtx->esi, pCtx->edi,
2038	pCtx->eip, pCtx->esp, pCtx->ebp, X86_EFL_GET_IOPL(efl), 31, szEFlags,
2039	pCtx->cs.Sel, pCtx->cs.u64Base, pCtx->cs.u32Limit, pCtx->cs.Attr.u, pCtx->dr[0], pCtx->dr[1],
2040	pCtx->ds.Sel, pCtx->ds.u64Base, pCtx->ds.u32Limit, pCtx->ds.Attr.u, pCtx->dr[2], pCtx->dr[3],
2041	pCtx->es.Sel, pCtx->es.u64Base, pCtx->es.u32Limit, pCtx->es.Attr.u, pCtx->dr[4], pCtx->dr[5],
2042	pCtx->fs.Sel, pCtx->fs.u64Base, pCtx->fs.u32Limit, pCtx->fs.Attr.u, pCtx->dr[6], pCtx->dr[7],
2043	pCtx->gs.Sel, pCtx->gs.u64Base, pCtx->gs.u32Limit, pCtx->gs.Attr.u, pCtx->cr0, pCtx->cr2,
2044	pCtx->ss.Sel, pCtx->ss.u64Base, pCtx->ss.u32Limit, pCtx->ss.Attr.u, pCtx->cr3, pCtx->cr4,
2045	pCtx->gdtr.pGdt, pCtx->gdtr.cbGdt, pCtx->idtr.pIdt, pCtx->idtr.cbIdt, efl,
2046	pCtx->ldtr.Sel, pCtx->ldtr.u64Base, pCtx->ldtr.u32Limit, pCtx->ldtr.Attr.u,
2047	pCtx->tr.Sel, pCtx->tr.u64Base, pCtx->tr.u32Limit, pCtx->tr.Attr.u,
2048	pCtx->SysEnter.cs, pCtx->SysEnter.eip, pCtx->SysEnter.esp));
2049
2050	Log(("FPU:\n"
2051	"FCW=%04x FSW=%04x FTW=%02x\n"
2052	"FOP=%04x FPUIP=%08x CS=%04x Rsrvd1=%04x\n"
2053	"FPUDP=%04x DS=%04x Rsvrd2=%04x MXCSR=%08x MXCSR_MASK=%08x\n"
2054	,
2055	pCtx->fpu.FCW, pCtx->fpu.FSW, pCtx->fpu.FTW,
2056	pCtx->fpu.FOP, pCtx->fpu.FPUIP, pCtx->fpu.CS, pCtx->fpu.Rsrvd1,
2057	pCtx->fpu.FPUDP, pCtx->fpu.DS, pCtx->fpu.Rsrvd2,
2058	pCtx->fpu.MXCSR, pCtx->fpu.MXCSR_MASK));
2059
2060
2061	Log(("MSR:\n"
2062	"EFER =%016RX64\n"
2063	"PAT =%016RX64\n"
2064	"STAR =%016RX64\n"
2065	"CSTAR =%016RX64\n"
2066	"LSTAR =%016RX64\n"
2067	"SFMASK =%016RX64\n"
2068	"KERNELGSBASE =%016RX64\n",
2069	pCtx->msrEFER,
2070	pCtx->msrPAT,
2071	pCtx->msrSTAR,
2072	pCtx->msrCSTAR,
2073	pCtx->msrLSTAR,
2074	pCtx->msrSFMASK,
2075	pCtx->msrKERNELGSBASE));
2076
2077	}
2078
2079	#endif /* VBOX_STRICT */
2080

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source: vbox/trunk/src/VBox/VMM/VMMR0/HMR0.cpp@ 45947

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