EMHwaccm.cpp@ 21209

Last change on this file since 21209 was 21209, checked in by vboxsync, 15 years ago
Updates for io instruction restarts
File size: 20.7 KB

Line
1	/* $Id: EM.cpp 49491 2009-07-03 11:39:50Z sandervl $ */
2	/** @file
3	* EM - Execution Monitor / Manager - hardware virtualization
4	*/
5
6	/*
7	* Copyright (C) 2006-2009 Sun Microsystems, Inc.
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	* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
18	* Clara, CA 95054 USA or visit http://www.sun.com if you need
19	* additional information or have any questions.
20	*/
21
22	/** @page pg_em EM - The Execution Monitor / Manager
23	*
24	* The Execution Monitor/Manager is responsible for running the VM, scheduling
25	* the right kind of execution (Raw-mode, Hardware Assisted, Recompiled or
26	* Interpreted), and keeping the CPU states in sync. The function
27	* EMR3ExecuteVM() is the 'main-loop' of the VM, while each of the execution
28	* modes has different inner loops (emR3RawExecute, emR3HwAccExecute, and
29	* emR3RemExecute).
30	*
31	* The interpreted execution is only used to avoid switching between
32	* raw-mode/hwaccm and the recompiler when fielding virtualization traps/faults.
33	* The interpretation is thus implemented as part of EM.
34	*
35	* @see grp_em
36	*/
37
38	/*******************************************************************************
39	* Header Files *
40	*******************************************************************************/
41	#define LOG_GROUP LOG_GROUP_EM
42	#include <VBox/em.h>
43	#include <VBox/vmm.h>
44	#ifdef VBOX_WITH_VMI
45	# include <VBox/parav.h>
46	#endif
47	#include <VBox/csam.h>
48	#include <VBox/selm.h>
49	#include <VBox/trpm.h>
50	#include <VBox/iom.h>
51	#include <VBox/dbgf.h>
52	#include <VBox/pgm.h>
53	#include <VBox/rem.h>
54	#include <VBox/tm.h>
55	#include <VBox/mm.h>
56	#include <VBox/ssm.h>
57	#include <VBox/pdmapi.h>
58	#include <VBox/pdmcritsect.h>
59	#include <VBox/pdmqueue.h>
60	#include <VBox/hwaccm.h>
61	#include "EMInternal.h"
62	#include <VBox/vm.h>
63	#include <VBox/cpumdis.h>
64	#include <VBox/dis.h>
65	#include <VBox/disopcode.h>
66	#include <VBox/dbgf.h>
67
68
69	/*******************************************************************************
70	* Defined Constants And Macros *
71	*******************************************************************************/
72	#if 0 /* Disabled till after 2.1.0 when we've time to test it. */
73	#define EM_NOTIFY_HWACCM
74	#endif
75
76
77	/*******************************************************************************
78	* Internal Functions *
79	*******************************************************************************/
80	DECLINLINE(int) emR3ExecuteInstruction(PVM pVM, PVMCPU pVCpu, const char *pszPrefix, int rcGC = VINF_SUCCESS);
81	static int emR3ExecuteIOInstruction(PVM pVM, PVMCPU pVCpu);
82	static int emR3HwaccmForcedActions(PVM pVM, PVMCPU pVCpu, PCPUMCTX pCtx);
83
84	#define EMHANDLERC_WITH_HWACCM
85	#include "EMHandleRCTmpl.h"
86
87
88	#ifdef DEBUG
89
90	/**
91	* Steps hardware accelerated mode.
92	*
93	* @returns VBox status code.
94	* @param pVM The VM handle.
95	* @param pVCpu The VMCPU handle.
96	*/
97	static int emR3HwAccStep(PVM pVM, PVMCPU pVCpu)
98	{
99	Assert(pVCpu->em.s.enmState == EMSTATE_DEBUG_GUEST_HWACC);
100
101	int rc;
102	PCPUMCTX pCtx = pVCpu->em.s.pCtx;
103	VMCPU_FF_CLEAR(pVCpu, (VMCPU_FF_SELM_SYNC_GDT \| VMCPU_FF_SELM_SYNC_LDT \| VMCPU_FF_TRPM_SYNC_IDT \| VMCPU_FF_SELM_SYNC_TSS));
104
105	/*
106	* Check vital forced actions, but ignore pending interrupts and timers.
107	*/
108	if ( VM_FF_ISPENDING(pVM, VM_FF_HIGH_PRIORITY_PRE_RAW_MASK)
109	\|\| VMCPU_FF_ISPENDING(pVCpu, VMCPU_FF_HIGH_PRIORITY_PRE_RAW_MASK))
110	{
111	rc = emR3HwaccmForcedActions(pVM, pVCpu, pCtx);
112	if (rc != VINF_SUCCESS)
113	return rc;
114	}
115	/*
116	* Set flags for single stepping.
117	*/
118	CPUMSetGuestEFlags(pVCpu, CPUMGetGuestEFlags(pVCpu) \| X86_EFL_TF \| X86_EFL_RF);
119
120	/*
121	* Single step.
122	* We do not start time or anything, if anything we should just do a few nanoseconds.
123	*/
124	do
125	{
126	rc = VMMR3HwAccRunGC(pVM, pVCpu);
127	} while ( rc == VINF_SUCCESS
128	\|\| rc == VINF_EM_RAW_INTERRUPT);
129	VMCPU_FF_CLEAR(pVCpu, VMCPU_FF_RESUME_GUEST_MASK);
130
131	/*
132	* Make sure the trap flag is cleared.
133	* (Too bad if the guest is trying to single step too.)
134	*/
135	CPUMSetGuestEFlags(pVCpu, CPUMGetGuestEFlags(pVCpu) & ~X86_EFL_TF);
136
137	/*
138	* Deal with the return codes.
139	*/
140	rc = emR3HighPriorityPostForcedActions(pVM, pVCpu, rc);
141	rc = emR3HwaccmHandleRC(pVM, pVCpu, pCtx, rc);
142	return rc;
143	}
144
145
146	static int emR3SingleStepExecHwAcc(PVM pVM, PVMCPU pVCpu, uint32_t cIterations)
147	{
148	int rc = VINF_SUCCESS;
149	EMSTATE enmOldState = pVCpu->em.s.enmState;
150	pVCpu->em.s.enmState = EMSTATE_DEBUG_GUEST_HWACC;
151
152	Log(("Single step BEGIN:\n"));
153	for (uint32_t i = 0; i < cIterations; i++)
154	{
155	DBGFR3PrgStep(pVCpu);
156	DBGFR3DisasInstrCurrentLog(pVCpu, "RSS: ");
157	rc = emR3HwAccStep(pVM, pVCpu);
158	if ( rc != VINF_SUCCESS
159	\|\| !HWACCMR3CanExecuteGuest(pVM, pVCpu->em.s.pCtx))
160	break;
161	}
162	Log(("Single step END: rc=%Rrc\n", rc));
163	CPUMSetGuestEFlags(pVCpu, CPUMGetGuestEFlags(pVCpu) & ~X86_EFL_TF);
164	pVCpu->em.s.enmState = enmOldState;
165	return rc == VINF_SUCCESS ? VINF_EM_RESCHEDULE_REM : rc;
166	}
167
168	#endif /* DEBUG */
169
170
171	/**
172	* Executes one (or perhaps a few more) instruction(s).
173	*
174	* @returns VBox status code suitable for EM.
175	*
176	* @param pVM VM handle.
177	* @param pVCpu VMCPU handle
178	* @param rcGC GC return code
179	* @param pszPrefix Disassembly prefix. If not NULL we'll disassemble the
180	* instruction and prefix the log output with this text.
181	*/
182	#ifdef LOG_ENABLED
183	static int emR3ExecuteInstructionWorker(PVM pVM, PVMCPU pVCpu, int rcGC, const char *pszPrefix)
184	#else
185	static int emR3ExecuteInstructionWorker(PVM pVM, PVMCPU pVCpu, int rcGC)
186	#endif
187	{
188	PCPUMCTX pCtx = pVCpu->em.s.pCtx;
189	int rc;
190
191	/*
192	*
193	* The simple solution is to use the recompiler.
194	* The better solution is to disassemble the current instruction and
195	* try handle as many as possible without using REM.
196	*
197	*/
198
199	#ifdef LOG_ENABLED
200	/*
201	* Disassemble the instruction if requested.
202	*/
203	if (pszPrefix)
204	{
205	DBGFR3InfoLog(pVM, "cpumguest", pszPrefix);
206	DBGFR3DisasInstrCurrentLog(pVCpu, pszPrefix);
207	}
208	#endif /* LOG_ENABLED */
209
210	#if 0
211	/* Try our own instruction emulator before falling back to the recompiler. */
212	DISCPUSTATE Cpu;
213	rc = CPUMR3DisasmInstrCPU(pVM, pVCpu, pCtx, pCtx->rip, &Cpu, "GEN EMU");
214	if (RT_SUCCESS(rc))
215	{
216	uint32_t size;
217
218	switch (Cpu.pCurInstr->opcode)
219	{
220	/* @todo we can do more now */
221	case OP_MOV:
222	case OP_AND:
223	case OP_OR:
224	case OP_XOR:
225	case OP_POP:
226	case OP_INC:
227	case OP_DEC:
228	case OP_XCHG:
229	STAM_PROFILE_START(&pVCpu->em.s.StatMiscEmu, a);
230	rc = EMInterpretInstructionCPU(pVM, &Cpu, CPUMCTX2CORE(pCtx), 0, &size);
231	if (RT_SUCCESS(rc))
232	{
233	pCtx->rip += Cpu.opsize;
234	#ifdef EM_NOTIFY_HWACCM
235	if (pVCpu->em.s.enmState == EMSTATE_DEBUG_GUEST_HWACC)
236	HWACCMR3NotifyEmulated(pVCpu);
237	#endif
238	STAM_PROFILE_STOP(&pVCpu->em.s.StatMiscEmu, a);
239	return rc;
240	}
241	if (rc != VERR_EM_INTERPRETER)
242	AssertMsgFailedReturn(("rc=%Rrc\n", rc), rc);
243	STAM_PROFILE_STOP(&pVCpu->em.s.StatMiscEmu, a);
244	break;
245	}
246	}
247	#endif /* 0 */
248	STAM_PROFILE_START(&pVCpu->em.s.StatREMEmu, a);
249	Log(("EMINS: %04x:%RGv RSP=%RGv\n", pCtx->cs, (RTGCPTR)pCtx->rip, (RTGCPTR)pCtx->rsp));
250	EMRemLock(pVM);
251	/* Flush the recompiler TLB if the VCPU has changed. */
252	if (pVM->em.s.idLastRemCpu != pVCpu->idCpu)
253	CPUMSetChangedFlags(pVCpu, CPUM_CHANGED_ALL);
254	pVM->em.s.idLastRemCpu = pVCpu->idCpu;
255
256	rc = REMR3EmulateInstruction(pVM, pVCpu);
257	EMRemUnlock(pVM);
258	STAM_PROFILE_STOP(&pVCpu->em.s.StatREMEmu, a);
259
260	#ifdef EM_NOTIFY_HWACCM
261	if (pVCpu->em.s.enmState == EMSTATE_DEBUG_GUEST_HWACC)
262	HWACCMR3NotifyEmulated(pVCpu);
263	#endif
264	return rc;
265	}
266
267
268	/**
269	* Executes one (or perhaps a few more) instruction(s).
270	* This is just a wrapper for discarding pszPrefix in non-logging builds.
271	*
272	* @returns VBox status code suitable for EM.
273	* @param pVM VM handle.
274	* @param pVCpu VMCPU handle.
275	* @param pszPrefix Disassembly prefix. If not NULL we'll disassemble the
276	* instruction and prefix the log output with this text.
277	* @param rcGC GC return code
278	*/
279	DECLINLINE(int) emR3ExecuteInstruction(PVM pVM, PVMCPU pVCpu, const char *pszPrefix, int rcGC)
280	{
281	#ifdef LOG_ENABLED
282	return emR3ExecuteInstructionWorker(pVM, pVCpu, rcGC, pszPrefix);
283	#else
284	return emR3ExecuteInstructionWorker(pVM, pVCpu, rcGC);
285	#endif
286	}
287
288	/**
289	* Executes one (or perhaps a few more) IO instruction(s).
290	*
291	* @returns VBox status code suitable for EM.
292	* @param pVM VM handle.
293	* @param pVCpu VMCPU handle.
294	*/
295	static int emR3ExecuteIOInstruction(PVM pVM, PVMCPU pVCpu)
296	{
297	int rc;
298	PCPUMCTX pCtx = pVCpu->em.s.pCtx;
299
300	STAM_PROFILE_START(&pVCpu->em.s.StatIOEmu, a);
301
302	/* Try to restart the io instruction that was refused in ring-0. */
303	rc = HWACCMR3RestartPendingIOInstr(pVM, pVCpu);
304	if (rc == VINF_SUCCESS)
305	{
306	STAM_COUNTER_INC(&pVCpu->em.s.CTX_SUFF(pStats)->StatIoRestarted);
307	STAM_PROFILE_STOP(&pVCpu->em.s.StatIOEmu, a);
308	return rc; /* rip already updated. */
309	}
310
311	/** @todo probably we should fall back to the recompiler; otherwise we'll go back and forth between HC & GC
312	* as io instructions tend to come in packages of more than one
313	*/
314	DISCPUSTATE Cpu;
315	rc = CPUMR3DisasmInstrCPU(pVM, pVCpu, pCtx, pCtx->rip, &Cpu, "IO EMU");
316	if (RT_SUCCESS(rc))
317	{
318	rc = VINF_EM_RAW_EMULATE_INSTR;
319
320	if (!(Cpu.prefix & (PREFIX_REP \| PREFIX_REPNE)))
321	{
322	switch (Cpu.pCurInstr->opcode)
323	{
324	case OP_IN:
325	{
326	STAM_COUNTER_INC(&pVCpu->em.s.CTX_SUFF(pStats)->StatIn);
327	rc = IOMInterpretIN(pVM, CPUMCTX2CORE(pCtx), &Cpu);
328	break;
329	}
330
331	case OP_OUT:
332	{
333	STAM_COUNTER_INC(&pVCpu->em.s.CTX_SUFF(pStats)->StatOut);
334	rc = IOMInterpretOUT(pVM, CPUMCTX2CORE(pCtx), &Cpu);
335	break;
336	}
337	}
338	}
339	else if (Cpu.prefix & PREFIX_REP)
340	{
341	switch (Cpu.pCurInstr->opcode)
342	{
343	case OP_INSB:
344	case OP_INSWD:
345	{
346	STAM_COUNTER_INC(&pVCpu->em.s.CTX_SUFF(pStats)->StatIn);
347	rc = IOMInterpretINS(pVM, CPUMCTX2CORE(pCtx), &Cpu);
348	break;
349	}
350
351	case OP_OUTSB:
352	case OP_OUTSWD:
353	{
354	STAM_COUNTER_INC(&pVCpu->em.s.CTX_SUFF(pStats)->StatOut);
355	rc = IOMInterpretOUTS(pVM, CPUMCTX2CORE(pCtx), &Cpu);
356	break;
357	}
358	}
359	}
360
361	/*
362	* Handled the I/O return codes.
363	* (The unhandled cases end up with rc == VINF_EM_RAW_EMULATE_INSTR.)
364	*/
365	if (IOM_SUCCESS(rc))
366	{
367	pCtx->rip += Cpu.opsize;
368	STAM_PROFILE_STOP(&pVCpu->em.s.StatIOEmu, a);
369	return rc;
370	}
371
372	if (rc == VINF_EM_RAW_GUEST_TRAP)
373	{
374	/* The active trap will be dispatched. */
375	Assert(TRPMHasTrap(pVCpu));
376	STAM_PROFILE_STOP(&pVCpu->em.s.StatIOEmu, a);
377	return VINF_SUCCESS;
378	}
379	AssertMsg(rc != VINF_TRPM_XCPT_DISPATCHED, ("Handle VINF_TRPM_XCPT_DISPATCHED\n"));
380
381	if (RT_FAILURE(rc))
382	{
383	STAM_PROFILE_STOP(&pVCpu->em.s.StatIOEmu, a);
384	return rc;
385	}
386	AssertMsg(rc == VINF_EM_RAW_EMULATE_INSTR \|\| rc == VINF_EM_RESCHEDULE_REM, ("rc=%Rrc\n", rc));
387	}
388	STAM_PROFILE_STOP(&pVCpu->em.s.StatIOEmu, a);
389	return emR3ExecuteInstruction(pVM, pVCpu, "IO: ");
390	}
391
392
393	/**
394	* Process raw-mode specific forced actions.
395	*
396	* This function is called when any FFs in the VM_FF_HIGH_PRIORITY_PRE_RAW_MASK is pending.
397	*
398	* @returns VBox status code. May return VINF_EM_NO_MEMORY but none of the other
399	* EM statuses.
400	* @param pVM The VM handle.
401	* @param pVCpu The VMCPU handle.
402	* @param pCtx The guest CPUM register context.
403	*/
404	static int emR3HwaccmForcedActions(PVM pVM, PVMCPU pVCpu, PCPUMCTX pCtx)
405	{
406	/*
407	* Sync page directory.
408	*/
409	if (VMCPU_FF_ISPENDING(pVCpu, VMCPU_FF_PGM_SYNC_CR3 \| VMCPU_FF_PGM_SYNC_CR3_NON_GLOBAL))
410	{
411	Assert(pVCpu->em.s.enmState != EMSTATE_WAIT_SIPI);
412	int rc = PGMSyncCR3(pVCpu, pCtx->cr0, pCtx->cr3, pCtx->cr4, VMCPU_FF_ISSET(pVCpu, VMCPU_FF_PGM_SYNC_CR3));
413	if (RT_FAILURE(rc))
414	return rc;
415
416	Assert(!VMCPU_FF_ISPENDING(pVCpu, VMCPU_FF_SELM_SYNC_GDT \| VMCPU_FF_SELM_SYNC_LDT));
417
418	/* Prefetch pages for EIP and ESP. */
419	/** @todo This is rather expensive. Should investigate if it really helps at all. */
420	rc = PGMPrefetchPage(pVCpu, SELMToFlat(pVM, DIS_SELREG_CS, CPUMCTX2CORE(pCtx), pCtx->rip));
421	if (rc == VINF_SUCCESS)
422	rc = PGMPrefetchPage(pVCpu, SELMToFlat(pVM, DIS_SELREG_SS, CPUMCTX2CORE(pCtx), pCtx->rsp));
423	if (rc != VINF_SUCCESS)
424	{
425	if (rc != VINF_PGM_SYNC_CR3)
426	{
427	AssertLogRelMsgReturn(RT_FAILURE(rc), ("%Rrc\n", rc), VERR_IPE_UNEXPECTED_INFO_STATUS);
428	return rc;
429	}
430	rc = PGMSyncCR3(pVCpu, pCtx->cr0, pCtx->cr3, pCtx->cr4, VMCPU_FF_ISSET(pVCpu, VMCPU_FF_PGM_SYNC_CR3));
431	if (RT_FAILURE(rc))
432	return rc;
433	}
434	/** @todo maybe prefetch the supervisor stack page as well */
435	Assert(!VMCPU_FF_ISPENDING(pVCpu, VMCPU_FF_SELM_SYNC_GDT \| VMCPU_FF_SELM_SYNC_LDT));
436	}
437
438	/*
439	* Allocate handy pages (just in case the above actions have consumed some pages).
440	*/
441	if (VM_FF_IS_PENDING_EXCEPT(pVM, VM_FF_PGM_NEED_HANDY_PAGES, VM_FF_PGM_NO_MEMORY))
442	{
443	int rc = PGMR3PhysAllocateHandyPages(pVM);
444	if (RT_FAILURE(rc))
445	return rc;
446	}
447
448	/*
449	* Check whether we're out of memory now.
450	*
451	* This may stem from some of the above actions or operations that has been executed
452	* since we ran FFs. The allocate handy pages must for instance always be followed by
453	* this check.
454	*/
455	if (VM_FF_ISPENDING(pVM, VM_FF_PGM_NO_MEMORY))
456	return VINF_EM_NO_MEMORY;
457
458	return VINF_SUCCESS;
459	}
460
461
462	/**
463	* Executes hardware accelerated raw code. (Intel VT-x & AMD-V)
464	*
465	* This function contains the raw-mode version of the inner
466	* execution loop (the outer loop being in EMR3ExecuteVM()).
467	*
468	* @returns VBox status code. The most important ones are: VINF_EM_RESCHEDULE, VINF_EM_RESCHEDULE_RAW,
469	* VINF_EM_RESCHEDULE_REM, VINF_EM_SUSPEND, VINF_EM_RESET and VINF_EM_TERMINATE.
470	*
471	* @param pVM VM handle.
472	* @param pVCpu VMCPU handle.
473	* @param pfFFDone Where to store an indicator telling whether or not
474	* FFs were done before returning.
475	*/
476	int emR3HwAccExecute(PVM pVM, PVMCPU pVCpu, bool *pfFFDone)
477	{
478	int rc = VERR_INTERNAL_ERROR;
479	PCPUMCTX pCtx = pVCpu->em.s.pCtx;
480
481	LogFlow(("emR3HwAccExecute%d: (cs:eip=%04x:%RGv)\n", pVCpu->idCpu, pCtx->cs, (RTGCPTR)pCtx->rip));
482	*pfFFDone = false;
483
484	STAM_COUNTER_INC(&pVCpu->em.s.StatHwAccExecuteEntry);
485
486	#ifdef EM_NOTIFY_HWACCM
487	HWACCMR3NotifyScheduled(pVCpu);
488	#endif
489
490	/*
491	* Spin till we get a forced action which returns anything but VINF_SUCCESS.
492	*/
493	for (;;)
494	{
495	STAM_PROFILE_ADV_START(&pVCpu->em.s.StatHwAccEntry, a);
496
497	/*
498	* Process high priority pre-execution raw-mode FFs.
499	*/
500	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 HWACCM mode; shouldn't be set really. */
501	if ( VM_FF_ISPENDING(pVM, VM_FF_HIGH_PRIORITY_PRE_RAW_MASK)
502	\|\| VMCPU_FF_ISPENDING(pVCpu, VMCPU_FF_HIGH_PRIORITY_PRE_RAW_MASK))
503	{
504	rc = emR3HwaccmForcedActions(pVM, pVCpu, pCtx);
505	if (rc != VINF_SUCCESS)
506	break;
507	}
508
509	#ifdef LOG_ENABLED
510	/*
511	* Log important stuff before entering GC.
512	*/
513	if (TRPMHasTrap(pVCpu))
514	Log(("CPU%d: Pending hardware interrupt=0x%x cs:rip=%04X:%RGv\n", pVCpu->idCpu, TRPMGetTrapNo(pVCpu), pCtx->cs, (RTGCPTR)pCtx->rip));
515
516	uint32_t cpl = CPUMGetGuestCPL(pVCpu, CPUMCTX2CORE(pCtx));
517
518	if (pVM->cCPUs == 1)
519	{
520	if (pCtx->eflags.Bits.u1VM)
521	Log(("HWV86: %08X IF=%d\n", pCtx->eip, pCtx->eflags.Bits.u1IF));
522	else if (CPUMIsGuestIn64BitCodeEx(pCtx))
523	Log(("HWR%d: %04X:%RGv ESP=%RGv IF=%d IOPL=%d CR0=%x CR4=%x EFER=%x\n", cpl, pCtx->cs, (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));
524	else
525	Log(("HWR%d: %04X:%08X ESP=%08X IF=%d IOPL=%d CR0=%x CR4=%x EFER=%x\n", cpl, pCtx->cs, pCtx->eip, pCtx->esp, pCtx->eflags.Bits.u1IF, pCtx->eflags.Bits.u2IOPL, (uint32_t)pCtx->cr0, (uint32_t)pCtx->cr4, (uint32_t)pCtx->msrEFER));
526	}
527	else
528	{
529	if (pCtx->eflags.Bits.u1VM)
530	Log(("HWV86-CPU%d: %08X IF=%d\n", pVCpu->idCpu, pCtx->eip, pCtx->eflags.Bits.u1IF));
531	else if (CPUMIsGuestIn64BitCodeEx(pCtx))
532	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, (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));
533	else
534	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, pCtx->eip, pCtx->esp, pCtx->eflags.Bits.u1IF, pCtx->eflags.Bits.u2IOPL, (uint32_t)pCtx->cr0, (uint32_t)pCtx->cr4, (uint32_t)pCtx->msrEFER));
535	}
536	#endif /* LOG_ENABLED */
537
538	/*
539	* Execute the code.
540	*/
541	STAM_PROFILE_ADV_STOP(&pVCpu->em.s.StatHwAccEntry, a);
542	STAM_PROFILE_START(&pVCpu->em.s.StatHwAccExec, x);
543	rc = VMMR3HwAccRunGC(pVM, pVCpu);
544	STAM_PROFILE_STOP(&pVCpu->em.s.StatHwAccExec, x);
545
546	/*
547	* Deal with high priority post execution FFs before doing anything else.
548	*/
549	VMCPU_FF_CLEAR(pVCpu, VMCPU_FF_RESUME_GUEST_MASK);
550	if ( VM_FF_ISPENDING(pVM, VM_FF_HIGH_PRIORITY_POST_MASK)
551	\|\| VMCPU_FF_ISPENDING(pVCpu, VMCPU_FF_HIGH_PRIORITY_POST_MASK))
552	rc = emR3HighPriorityPostForcedActions(pVM, pVCpu, rc);
553
554	/*
555	* Process the returned status code.
556	*/
557	if (rc >= VINF_EM_FIRST && rc <= VINF_EM_LAST)
558	break;
559
560	rc = emR3HwaccmHandleRC(pVM, pVCpu, pCtx, rc);
561	if (rc != VINF_SUCCESS)
562	break;
563
564	/*
565	* Check and execute forced actions.
566	*/
567	#ifdef VBOX_HIGH_RES_TIMERS_HACK
568	TMTimerPollVoid(pVM, pVCpu);
569	#endif
570	if ( VM_FF_ISPENDING(pVM, VM_FF_ALL_MASK)
571	\|\| VMCPU_FF_ISPENDING(pVCpu, VMCPU_FF_ALL_MASK))
572	{
573	rc = emR3ForcedActions(pVM, pVCpu, rc);
574	if ( rc != VINF_SUCCESS
575	&& rc != VINF_EM_RESCHEDULE_HWACC)
576	{
577	*pfFFDone = true;
578	break;
579	}
580	}
581	}
582
583	/*
584	* Return to outer loop.
585	*/
586	#if defined(LOG_ENABLED) && defined(DEBUG)
587	RTLogFlush(NULL);
588	#endif
589	return rc;
590	}
591
592

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source: vbox/trunk/src/VBox/VMM/EMHwaccm.cpp@ 21209

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