EMHM.cpp@ 44847

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1	/* $Id: EMHM.cpp 44528 2013-02-04 14:27:54Z vboxsync $ */
2	/** @file
3	* EM - Execution Monitor / Manager - hardware virtualization
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	* Header Files *
20	*******************************************************************************/
21	#define LOG_GROUP LOG_GROUP_EM
22	#include <VBox/vmm/em.h>
23	#include <VBox/vmm/vmm.h>
24	#include <VBox/vmm/csam.h>
25	#include <VBox/vmm/selm.h>
26	#include <VBox/vmm/trpm.h>
27	#include <VBox/vmm/iem.h>
28	#include <VBox/vmm/iom.h>
29	#include <VBox/vmm/dbgf.h>
30	#include <VBox/vmm/pgm.h>
31	#ifdef VBOX_WITH_REM
32	# include <VBox/vmm/rem.h>
33	#endif
34	#include <VBox/vmm/tm.h>
35	#include <VBox/vmm/mm.h>
36	#include <VBox/vmm/ssm.h>
37	#include <VBox/vmm/pdmapi.h>
38	#include <VBox/vmm/pdmcritsect.h>
39	#include <VBox/vmm/pdmqueue.h>
40	#include <VBox/vmm/hm.h>
41	#include "EMInternal.h"
42	#include <VBox/vmm/vm.h>
43	#include <VBox/vmm/cpumdis.h>
44	#include <VBox/dis.h>
45	#include <VBox/disopcode.h>
46	#include <VBox/vmm/dbgf.h>
47	#include "VMMTracing.h"
48
49	#include <iprt/asm.h>
50
51
52	/*******************************************************************************
53	* Defined Constants And Macros *
54	*******************************************************************************/
55	#if 0 /* Disabled till after 2.1.0 when we've time to test it. */
56	#define EM_NOTIFY_HM
57	#endif
58
59
60	/*******************************************************************************
61	* Internal Functions *
62	*******************************************************************************/
63	DECLINLINE(int) emR3ExecuteInstruction(PVM pVM, PVMCPU pVCpu, const char *pszPrefix, int rcGC = VINF_SUCCESS);
64	static int emR3ExecuteIOInstruction(PVM pVM, PVMCPU pVCpu);
65	static int emR3HmForcedActions(PVM pVM, PVMCPU pVCpu, PCPUMCTX pCtx);
66
67	#define EMHANDLERC_WITH_HM
68	#include "EMHandleRCTmpl.h"
69
70
71	#if defined(DEBUG) && defined(SOME_UNUSED_FUNCTIONS)
72
73	/**
74	* Steps hardware accelerated mode.
75	*
76	* @returns VBox status code.
77	* @param pVM Pointer to the VM.
78	* @param pVCpu Pointer to the VMCPU.
79	*/
80	static int emR3HmStep(PVM pVM, PVMCPU pVCpu)
81	{
82	Assert(pVCpu->em.s.enmState == EMSTATE_DEBUG_GUEST_HM);
83
84	int rc;
85	PCPUMCTX pCtx = pVCpu->em.s.pCtx;
86	VMCPU_FF_CLEAR(pVCpu, (VMCPU_FF_SELM_SYNC_GDT \| VMCPU_FF_SELM_SYNC_LDT \| VMCPU_FF_TRPM_SYNC_IDT \| VMCPU_FF_SELM_SYNC_TSS));
87
88	/*
89	* Check vital forced actions, but ignore pending interrupts and timers.
90	*/
91	if ( VM_FF_ISPENDING(pVM, VM_FF_HIGH_PRIORITY_PRE_RAW_MASK)
92	\|\| VMCPU_FF_ISPENDING(pVCpu, VMCPU_FF_HIGH_PRIORITY_PRE_RAW_MASK))
93	{
94	rc = emR3HmForcedActions(pVM, pVCpu, pCtx);
95	if (rc != VINF_SUCCESS)
96	return rc;
97	}
98	/*
99	* Set flags for single stepping.
100	*/
101	CPUMSetGuestEFlags(pVCpu, CPUMGetGuestEFlags(pVCpu) \| X86_EFL_TF \| X86_EFL_RF);
102
103	/*
104	* Single step.
105	* We do not start time or anything, if anything we should just do a few nanoseconds.
106	*/
107	do
108	{
109	rc = VMMR3HmRunGC(pVM, pVCpu);
110	} while ( rc == VINF_SUCCESS
111	\|\| rc == VINF_EM_RAW_INTERRUPT);
112	VMCPU_FF_CLEAR(pVCpu, VMCPU_FF_RESUME_GUEST_MASK);
113
114	/*
115	* Make sure the trap flag is cleared.
116	* (Too bad if the guest is trying to single step too.)
117	*/
118	CPUMSetGuestEFlags(pVCpu, CPUMGetGuestEFlags(pVCpu) & ~X86_EFL_TF);
119
120	/*
121	* Deal with the return codes.
122	*/
123	rc = emR3HighPriorityPostForcedActions(pVM, pVCpu, rc);
124	rc = emR3HmHandleRC(pVM, pVCpu, pCtx, rc);
125	return rc;
126	}
127
128
129	static int emR3SingleStepExecHm(PVM pVM, PVMCPU pVCpu, uint32_t cIterations)
130	{
131	int rc = VINF_SUCCESS;
132	EMSTATE enmOldState = pVCpu->em.s.enmState;
133	pVCpu->em.s.enmState = EMSTATE_DEBUG_GUEST_HM;
134
135	Log(("Single step BEGIN:\n"));
136	for (uint32_t i = 0; i < cIterations; i++)
137	{
138	DBGFR3PrgStep(pVCpu);
139	DBGFR3_DISAS_INSTR_CUR_LOG(pVCpu, "RSS: ");
140	rc = emR3HmStep(pVM, pVCpu);
141	if ( rc != VINF_SUCCESS
142	\|\| !HMR3CanExecuteGuest(pVM, pVCpu->em.s.pCtx))
143	break;
144	}
145	Log(("Single step END: rc=%Rrc\n", rc));
146	CPUMSetGuestEFlags(pVCpu, CPUMGetGuestEFlags(pVCpu) & ~X86_EFL_TF);
147	pVCpu->em.s.enmState = enmOldState;
148	return rc == VINF_SUCCESS ? VINF_EM_RESCHEDULE_REM : rc;
149	}
150
151	#endif /* DEBUG */
152
153
154	/**
155	* Executes one (or perhaps a few more) instruction(s).
156	*
157	* @returns VBox status code suitable for EM.
158	*
159	* @param pVM Pointer to the VM.
160	* @param pVCpu Pointer to the VMCPU.
161	* @param rcRC Return code from RC.
162	* @param pszPrefix Disassembly prefix. If not NULL we'll disassemble the
163	* instruction and prefix the log output with this text.
164	*/
165	#ifdef LOG_ENABLED
166	static int emR3ExecuteInstructionWorker(PVM pVM, PVMCPU pVCpu, int rcRC, const char *pszPrefix)
167	#else
168	static int emR3ExecuteInstructionWorker(PVM pVM, PVMCPU pVCpu, int rcRC)
169	#endif
170	{
171	#ifdef LOG_ENABLED
172	PCPUMCTX pCtx = pVCpu->em.s.pCtx;
173	#endif
174	int rc;
175	NOREF(rcRC);
176
177	/*
178	*
179	* The simple solution is to use the recompiler.
180	* The better solution is to disassemble the current instruction and
181	* try handle as many as possible without using REM.
182	*
183	*/
184
185	#ifdef LOG_ENABLED
186	/*
187	* Disassemble the instruction if requested.
188	*/
189	if (pszPrefix)
190	{
191	DBGFR3_INFO_LOG(pVM, "cpumguest", pszPrefix);
192	DBGFR3_DISAS_INSTR_CUR_LOG(pVCpu, pszPrefix);
193	}
194	#endif /* LOG_ENABLED */
195
196	#if 0
197	/* Try our own instruction emulator before falling back to the recompiler. */
198	DISCPUSTATE Cpu;
199	rc = CPUMR3DisasmInstrCPU(pVM, pVCpu, pCtx, pCtx->rip, &Cpu, "GEN EMU");
200	if (RT_SUCCESS(rc))
201	{
202	switch (Cpu.pCurInstr->uOpcode)
203	{
204	/* @todo we can do more now */
205	case OP_MOV:
206	case OP_AND:
207	case OP_OR:
208	case OP_XOR:
209	case OP_POP:
210	case OP_INC:
211	case OP_DEC:
212	case OP_XCHG:
213	STAM_PROFILE_START(&pVCpu->em.s.StatMiscEmu, a);
214	rc = EMInterpretInstructionCpuUpdtPC(pVM, pVCpu, &Cpu, CPUMCTX2CORE(pCtx), 0);
215	if (RT_SUCCESS(rc))
216	{
217	#ifdef EM_NOTIFY_HM
218	if (pVCpu->em.s.enmState == EMSTATE_DEBUG_GUEST_HM)
219	HMR3NotifyEmulated(pVCpu);
220	#endif
221	STAM_PROFILE_STOP(&pVCpu->em.s.StatMiscEmu, a);
222	return rc;
223	}
224	if (rc != VERR_EM_INTERPRETER)
225	AssertMsgFailedReturn(("rc=%Rrc\n", rc), rc);
226	STAM_PROFILE_STOP(&pVCpu->em.s.StatMiscEmu, a);
227	break;
228	}
229	}
230	#endif /* 0 */
231	STAM_PROFILE_START(&pVCpu->em.s.StatREMEmu, a);
232	Log(("EMINS: %04x:%RGv RSP=%RGv\n", pCtx->cs.Sel, (RTGCPTR)pCtx->rip, (RTGCPTR)pCtx->rsp));
233	#ifdef VBOX_WITH_REM
234	EMRemLock(pVM);
235	/* Flush the recompiler TLB if the VCPU has changed. */
236	if (pVM->em.s.idLastRemCpu != pVCpu->idCpu)
237	CPUMSetChangedFlags(pVCpu, CPUM_CHANGED_ALL);
238	pVM->em.s.idLastRemCpu = pVCpu->idCpu;
239
240	rc = REMR3EmulateInstruction(pVM, pVCpu);
241	EMRemUnlock(pVM);
242	#else
243	rc = VBOXSTRICTRC_TODO(IEMExecOne(pVCpu)); NOREF(pVM);
244	#endif
245	STAM_PROFILE_STOP(&pVCpu->em.s.StatREMEmu, a);
246
247	#ifdef EM_NOTIFY_HM
248	if (pVCpu->em.s.enmState == EMSTATE_DEBUG_GUEST_HM)
249	HMR3NotifyEmulated(pVCpu);
250	#endif
251	return rc;
252	}
253
254
255	/**
256	* Executes one (or perhaps a few more) instruction(s).
257	* This is just a wrapper for discarding pszPrefix in non-logging builds.
258	*
259	* @returns VBox status code suitable for EM.
260	* @param pVM Pointer to the VM.
261	* @param pVCpu Pointer to the VMCPU.
262	* @param pszPrefix Disassembly prefix. If not NULL we'll disassemble the
263	* instruction and prefix the log output with this text.
264	* @param rcGC GC return code
265	*/
266	DECLINLINE(int) emR3ExecuteInstruction(PVM pVM, PVMCPU pVCpu, const char *pszPrefix, int rcGC)
267	{
268	#ifdef LOG_ENABLED
269	return emR3ExecuteInstructionWorker(pVM, pVCpu, rcGC, pszPrefix);
270	#else
271	return emR3ExecuteInstructionWorker(pVM, pVCpu, rcGC);
272	#endif
273	}
274
275	/**
276	* Executes one (or perhaps a few more) IO instruction(s).
277	*
278	* @returns VBox status code suitable for EM.
279	* @param pVM Pointer to the VM.
280	* @param pVCpu Pointer to the VMCPU.
281	*/
282	static int emR3ExecuteIOInstruction(PVM pVM, PVMCPU pVCpu)
283	{
284	PCPUMCTX pCtx = pVCpu->em.s.pCtx;
285
286	STAM_PROFILE_START(&pVCpu->em.s.StatIOEmu, a);
287
288	/* Try to restart the io instruction that was refused in ring-0. */
289	VBOXSTRICTRC rcStrict = HMR3RestartPendingIOInstr(pVM, pVCpu, pCtx);
290	if (IOM_SUCCESS(rcStrict))
291	{
292	STAM_COUNTER_INC(&pVCpu->em.s.CTX_SUFF(pStats)->StatIoRestarted);
293	STAM_PROFILE_STOP(&pVCpu->em.s.StatIOEmu, a);
294	return VBOXSTRICTRC_TODO(rcStrict); /* rip already updated. */
295	}
296	AssertMsgReturn(rcStrict == VERR_NOT_FOUND, ("%Rrc\n", VBOXSTRICTRC_VAL(rcStrict)),
297	RT_SUCCESS_NP(rcStrict) ? VERR_IPE_UNEXPECTED_INFO_STATUS : VBOXSTRICTRC_TODO(rcStrict));
298
299	/** @todo probably we should fall back to the recompiler; otherwise we'll go back and forth between HC & GC
300	* as io instructions tend to come in packages of more than one
301	*/
302	DISCPUSTATE Cpu;
303	int rc2 = CPUMR3DisasmInstrCPU(pVM, pVCpu, pCtx, pCtx->rip, &Cpu, "IO EMU");
304	if (RT_SUCCESS(rc2))
305	{
306	rcStrict = VINF_EM_RAW_EMULATE_INSTR;
307
308	if (!(Cpu.fPrefix & (DISPREFIX_REP \| DISPREFIX_REPNE)))
309	{
310	switch (Cpu.pCurInstr->uOpcode)
311	{
312	case OP_IN:
313	{
314	STAM_COUNTER_INC(&pVCpu->em.s.CTX_SUFF(pStats)->StatIn);
315	rcStrict = IOMInterpretIN(pVM, CPUMCTX2CORE(pCtx), &Cpu);
316	break;
317	}
318
319	case OP_OUT:
320	{
321	STAM_COUNTER_INC(&pVCpu->em.s.CTX_SUFF(pStats)->StatOut);
322	rcStrict = IOMInterpretOUT(pVM, CPUMCTX2CORE(pCtx), &Cpu);
323	break;
324	}
325	}
326	}
327	else if (Cpu.fPrefix & DISPREFIX_REP)
328	{
329	switch (Cpu.pCurInstr->uOpcode)
330	{
331	case OP_INSB:
332	case OP_INSWD:
333	{
334	STAM_COUNTER_INC(&pVCpu->em.s.CTX_SUFF(pStats)->StatIn);
335	rcStrict = IOMInterpretINS(pVM, CPUMCTX2CORE(pCtx), &Cpu);
336	break;
337	}
338
339	case OP_OUTSB:
340	case OP_OUTSWD:
341	{
342	STAM_COUNTER_INC(&pVCpu->em.s.CTX_SUFF(pStats)->StatOut);
343	rcStrict = IOMInterpretOUTS(pVM, CPUMCTX2CORE(pCtx), &Cpu);
344	break;
345	}
346	}
347	}
348
349	/*
350	* Handled the I/O return codes.
351	* (The unhandled cases end up with rcStrict == VINF_EM_RAW_EMULATE_INSTR.)
352	*/
353	if (IOM_SUCCESS(rcStrict))
354	{
355	pCtx->rip += Cpu.cbInstr;
356	STAM_PROFILE_STOP(&pVCpu->em.s.StatIOEmu, a);
357	return VBOXSTRICTRC_TODO(rcStrict);
358	}
359
360	if (rcStrict == VINF_EM_RAW_GUEST_TRAP)
361	{
362	/* The active trap will be dispatched. */
363	Assert(TRPMHasTrap(pVCpu));
364	STAM_PROFILE_STOP(&pVCpu->em.s.StatIOEmu, a);
365	return VINF_SUCCESS;
366	}
367	AssertMsg(rcStrict != VINF_TRPM_XCPT_DISPATCHED, ("Handle VINF_TRPM_XCPT_DISPATCHED\n"));
368
369	if (RT_FAILURE(rcStrict))
370	{
371	STAM_PROFILE_STOP(&pVCpu->em.s.StatIOEmu, a);
372	return VBOXSTRICTRC_TODO(rcStrict);
373	}
374	AssertMsg(rcStrict == VINF_EM_RAW_EMULATE_INSTR \|\| rcStrict == VINF_EM_RESCHEDULE_REM, ("rcStrict=%Rrc\n", VBOXSTRICTRC_VAL(rcStrict)));
375	}
376
377	STAM_PROFILE_STOP(&pVCpu->em.s.StatIOEmu, a);
378	return emR3ExecuteInstruction(pVM, pVCpu, "IO: ");
379	}
380
381
382	/**
383	* Process raw-mode specific forced actions.
384	*
385	* This function is called when any FFs in the VM_FF_HIGH_PRIORITY_PRE_RAW_MASK is pending.
386	*
387	* @returns VBox status code. May return VINF_EM_NO_MEMORY but none of the other
388	* EM statuses.
389	* @param pVM Pointer to the VM.
390	* @param pVCpu Pointer to the VMCPU.
391	* @param pCtx Pointer to the guest CPU context.
392	*/
393	static int emR3HmForcedActions(PVM pVM, PVMCPU pVCpu, PCPUMCTX pCtx)
394	{
395	/*
396	* Sync page directory.
397	*/
398	if (VMCPU_FF_ISPENDING(pVCpu, VMCPU_FF_PGM_SYNC_CR3 \| VMCPU_FF_PGM_SYNC_CR3_NON_GLOBAL))
399	{
400	Assert(pVCpu->em.s.enmState != EMSTATE_WAIT_SIPI);
401	int rc = PGMSyncCR3(pVCpu, pCtx->cr0, pCtx->cr3, pCtx->cr4, VMCPU_FF_ISSET(pVCpu, VMCPU_FF_PGM_SYNC_CR3));
402	if (RT_FAILURE(rc))
403	return rc;
404
405	Assert(!VMCPU_FF_ISPENDING(pVCpu, VMCPU_FF_SELM_SYNC_GDT \| VMCPU_FF_SELM_SYNC_LDT));
406
407	/* Prefetch pages for EIP and ESP. */
408	/** @todo This is rather expensive. Should investigate if it really helps at all. */
409	rc = PGMPrefetchPage(pVCpu, SELMToFlat(pVM, DISSELREG_CS, CPUMCTX2CORE(pCtx), pCtx->rip));
410	if (rc == VINF_SUCCESS)
411	rc = PGMPrefetchPage(pVCpu, SELMToFlat(pVM, DISSELREG_SS, CPUMCTX2CORE(pCtx), pCtx->rsp));
412	if (rc != VINF_SUCCESS)
413	{
414	if (rc != VINF_PGM_SYNC_CR3)
415	{
416	AssertLogRelMsgReturn(RT_FAILURE(rc), ("%Rrc\n", rc), VERR_IPE_UNEXPECTED_INFO_STATUS);
417	return rc;
418	}
419	rc = PGMSyncCR3(pVCpu, pCtx->cr0, pCtx->cr3, pCtx->cr4, VMCPU_FF_ISSET(pVCpu, VMCPU_FF_PGM_SYNC_CR3));
420	if (RT_FAILURE(rc))
421	return rc;
422	}
423	/** @todo maybe prefetch the supervisor stack page as well */
424	Assert(!VMCPU_FF_ISPENDING(pVCpu, VMCPU_FF_SELM_SYNC_GDT \| VMCPU_FF_SELM_SYNC_LDT));
425	}
426
427	/*
428	* Allocate handy pages (just in case the above actions have consumed some pages).
429	*/
430	if (VM_FF_IS_PENDING_EXCEPT(pVM, VM_FF_PGM_NEED_HANDY_PAGES, VM_FF_PGM_NO_MEMORY))
431	{
432	int rc = PGMR3PhysAllocateHandyPages(pVM);
433	if (RT_FAILURE(rc))
434	return rc;
435	}
436
437	/*
438	* Check whether we're out of memory now.
439	*
440	* This may stem from some of the above actions or operations that has been executed
441	* since we ran FFs. The allocate handy pages must for instance always be followed by
442	* this check.
443	*/
444	if (VM_FF_ISPENDING(pVM, VM_FF_PGM_NO_MEMORY))
445	return VINF_EM_NO_MEMORY;
446
447	return VINF_SUCCESS;
448	}
449
450
451	/**
452	* Executes hardware accelerated raw code. (Intel VT-x & AMD-V)
453	*
454	* This function contains the raw-mode version of the inner
455	* execution loop (the outer loop being in EMR3ExecuteVM()).
456	*
457	* @returns VBox status code. The most important ones are: VINF_EM_RESCHEDULE, VINF_EM_RESCHEDULE_RAW,
458	* VINF_EM_RESCHEDULE_REM, VINF_EM_SUSPEND, VINF_EM_RESET and VINF_EM_TERMINATE.
459	*
460	* @param pVM Pointer to the VM.
461	* @param pVCpu Pointer to the VMCPU.
462	* @param pfFFDone Where to store an indicator telling whether or not
463	* FFs were done before returning.
464	*/
465	int emR3HmExecute(PVM pVM, PVMCPU pVCpu, bool *pfFFDone)
466	{
467	int rc = VERR_IPE_UNINITIALIZED_STATUS;
468	PCPUMCTX pCtx = pVCpu->em.s.pCtx;
469
470	LogFlow(("emR3HmExecute%d: (cs:eip=%04x:%RGv)\n", pVCpu->idCpu, pCtx->cs.Sel, (RTGCPTR)pCtx->rip));
471	*pfFFDone = false;
472
473	STAM_COUNTER_INC(&pVCpu->em.s.StatHmExecuteEntry);
474
475	#ifdef EM_NOTIFY_HM
476	HMR3NotifyScheduled(pVCpu);
477	#endif
478
479	/*
480	* Spin till we get a forced action which returns anything but VINF_SUCCESS.
481	*/
482	for (;;)
483	{
484	STAM_PROFILE_ADV_START(&pVCpu->em.s.StatHmEntry, a);
485
486	/* Check if a forced reschedule is pending. */
487	if (HMR3IsRescheduleRequired(pVM, pCtx))
488	{
489	rc = VINF_EM_RESCHEDULE;
490	break;
491	}
492
493	/*
494	* Process high priority pre-execution raw-mode FFs.
495	*/
496	VMCPU_FF_CLEAR(pVCpu, (VMCPU_FF_SELM_SYNC_GDT \| VMCPU_FF_SELM_SYNC_LDT \| VMCPU_FF_TRPM_SYNC_IDT \| VMCPU_FF_SELM_SYNC_TSS)); /* not relevant in HM mode; shouldn't be set really. */
497	if ( VM_FF_ISPENDING(pVM, VM_FF_HIGH_PRIORITY_PRE_RAW_MASK)
498	\|\| VMCPU_FF_ISPENDING(pVCpu, VMCPU_FF_HIGH_PRIORITY_PRE_RAW_MASK))
499	{
500	rc = emR3HmForcedActions(pVM, pVCpu, pCtx);
501	if (rc != VINF_SUCCESS)
502	break;
503	}
504
505	#ifdef LOG_ENABLED
506	/*
507	* Log important stuff before entering GC.
508	*/
509	if (TRPMHasTrap(pVCpu))
510	Log(("CPU%d: Pending hardware interrupt=0x%x cs:rip=%04X:%RGv\n", pVCpu->idCpu, TRPMGetTrapNo(pVCpu), pCtx->cs.Sel, (RTGCPTR)pCtx->rip));
511
512	uint32_t cpl = CPUMGetGuestCPL(pVCpu);
513
514	if (pVM->cCpus == 1)
515	{
516	if (pCtx->eflags.Bits.u1VM)
517	Log(("HWV86: %08X IF=%d\n", pCtx->eip, pCtx->eflags.Bits.u1IF));
518	else if (CPUMIsGuestIn64BitCodeEx(pCtx))
519	Log(("HWR%d: %04X:%RGv ESP=%RGv IF=%d IOPL=%d CR0=%x CR4=%x EFER=%x\n", cpl, pCtx->cs.Sel, (RTGCPTR)pCtx->rip, pCtx->rsp, pCtx->eflags.Bits.u1IF, pCtx->eflags.Bits.u2IOPL, (uint32_t)pCtx->cr0, (uint32_t)pCtx->cr4, (uint32_t)pCtx->msrEFER));
520	else
521	Log(("HWR%d: %04X:%08X ESP=%08X IF=%d IOPL=%d CR0=%x CR4=%x EFER=%x\n", cpl, pCtx->cs.Sel, pCtx->eip, pCtx->esp, pCtx->eflags.Bits.u1IF, pCtx->eflags.Bits.u2IOPL, (uint32_t)pCtx->cr0, (uint32_t)pCtx->cr4, (uint32_t)pCtx->msrEFER));
522	}
523	else
524	{
525	if (pCtx->eflags.Bits.u1VM)
526	Log(("HWV86-CPU%d: %08X IF=%d\n", pVCpu->idCpu, pCtx->eip, pCtx->eflags.Bits.u1IF));
527	else if (CPUMIsGuestIn64BitCodeEx(pCtx))
528	Log(("HWR%d-CPU%d: %04X:%RGv ESP=%RGv IF=%d IOPL=%d CR0=%x CR4=%x EFER=%x\n", cpl, pVCpu->idCpu, pCtx->cs.Sel, (RTGCPTR)pCtx->rip, pCtx->rsp, pCtx->eflags.Bits.u1IF, pCtx->eflags.Bits.u2IOPL, (uint32_t)pCtx->cr0, (uint32_t)pCtx->cr4, (uint32_t)pCtx->msrEFER));
529	else
530	Log(("HWR%d-CPU%d: %04X:%08X ESP=%08X IF=%d IOPL=%d CR0=%x CR4=%x EFER=%x\n", cpl, pVCpu->idCpu, pCtx->cs.Sel, pCtx->eip, pCtx->esp, pCtx->eflags.Bits.u1IF, pCtx->eflags.Bits.u2IOPL, (uint32_t)pCtx->cr0, (uint32_t)pCtx->cr4, (uint32_t)pCtx->msrEFER));
531	}
532	#endif /* LOG_ENABLED */
533
534	/*
535	* Execute the code.
536	*/
537	STAM_PROFILE_ADV_STOP(&pVCpu->em.s.StatHmEntry, a);
538
539	if (RT_LIKELY(EMR3IsExecutionAllowed(pVM, pVCpu)))
540	{
541	STAM_PROFILE_START(&pVCpu->em.s.StatHmExec, x);
542	rc = VMMR3HmRunGC(pVM, pVCpu);
543	STAM_PROFILE_STOP(&pVCpu->em.s.StatHmExec, x);
544	}
545	else
546	{
547	/* Give up this time slice; virtual time continues */
548	STAM_REL_PROFILE_ADV_START(&pVCpu->em.s.StatCapped, u);
549	RTThreadSleep(5);
550	STAM_REL_PROFILE_ADV_STOP(&pVCpu->em.s.StatCapped, u);
551	rc = VINF_SUCCESS;
552	}
553
554
555	/*
556	* Deal with high priority post execution FFs before doing anything else.
557	*/
558	VMCPU_FF_CLEAR(pVCpu, VMCPU_FF_RESUME_GUEST_MASK);
559	if ( VM_FF_ISPENDING(pVM, VM_FF_HIGH_PRIORITY_POST_MASK)
560	\|\| VMCPU_FF_ISPENDING(pVCpu, VMCPU_FF_HIGH_PRIORITY_POST_MASK))
561	rc = emR3HighPriorityPostForcedActions(pVM, pVCpu, rc);
562
563	/*
564	* Process the returned status code.
565	*/
566	if (rc >= VINF_EM_FIRST && rc <= VINF_EM_LAST)
567	break;
568
569	rc = emR3HmHandleRC(pVM, pVCpu, pCtx, rc);
570	if (rc != VINF_SUCCESS)
571	break;
572
573	/*
574	* Check and execute forced actions.
575	*/
576	#ifdef VBOX_HIGH_RES_TIMERS_HACK
577	TMTimerPollVoid(pVM, pVCpu);
578	#endif
579	if ( VM_FF_ISPENDING(pVM, VM_FF_ALL_MASK)
580	\|\| VMCPU_FF_ISPENDING(pVCpu, VMCPU_FF_ALL_MASK))
581	{
582	rc = emR3ForcedActions(pVM, pVCpu, rc);
583	VBOXVMM_EM_FF_ALL_RET(pVCpu, rc);
584	if ( rc != VINF_SUCCESS
585	&& rc != VINF_EM_RESCHEDULE_HM)
586	{
587	*pfFFDone = true;
588	break;
589	}
590	}
591	}
592
593	/*
594	* Return to outer loop.
595	*/
596	#if defined(LOG_ENABLED) && defined(DEBUG)
597	RTLogFlush(NULL);
598	#endif
599	return rc;
600	}
601

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source: vbox/trunk/src/VBox/VMM/VMMR3/EMHM.cpp@ 44847

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