EMRaw.cpp@ 58126

Last change on this file since 58126 was 58126, checked in by vboxsync, 9 years ago
VMM: Fixed almost all the Doxygen warnings.
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1	/* $Id: EMRaw.cpp 58126 2015-10-08 20:59:48Z vboxsync $ */
2	/** @file
3	* EM - Execution Monitor / Manager - software virtualization
4	*/
5
6	/*
7	* Copyright (C) 2006-2015 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_EM
23	#include <VBox/vmm/em.h>
24	#include <VBox/vmm/vmm.h>
25	#include <VBox/vmm/patm.h>
26	#include <VBox/vmm/csam.h>
27	#include <VBox/vmm/selm.h>
28	#include <VBox/vmm/trpm.h>
29	#include <VBox/vmm/iem.h>
30	#include <VBox/vmm/iom.h>
31	#include <VBox/vmm/dbgf.h>
32	#include <VBox/vmm/pgm.h>
33	#ifdef VBOX_WITH_REM
34	# include <VBox/vmm/rem.h>
35	#endif
36	#include <VBox/vmm/tm.h>
37	#include <VBox/vmm/mm.h>
38	#include <VBox/vmm/ssm.h>
39	#include <VBox/vmm/pdmapi.h>
40	#include <VBox/vmm/pdmcritsect.h>
41	#include <VBox/vmm/pdmqueue.h>
42	#include <VBox/vmm/patm.h>
43	#include "EMInternal.h"
44	#include <VBox/vmm/vm.h>
45	#include <VBox/vmm/gim.h>
46	#include <VBox/vmm/cpumdis.h>
47	#include <VBox/dis.h>
48	#include <VBox/disopcode.h>
49	#include <VBox/vmm/dbgf.h>
50	#include "VMMTracing.h"
51
52	#include <VBox/log.h>
53	#include <iprt/asm.h>
54	#include <iprt/string.h>
55	#include <iprt/stream.h>
56
57
58
59	/*********************************************************************************************************************************
60	* Internal Functions *
61	*********************************************************************************************************************************/
62	static int emR3RawForcedActions(PVM pVM, PVMCPU pVCpu, PCPUMCTX pCtx);
63	DECLINLINE(int) emR3RawExecuteInstruction(PVM pVM, PVMCPU pVCpu, const char *pszPrefix, int rcGC = VINF_SUCCESS);
64	static int emR3RawGuestTrap(PVM pVM, PVMCPU pVCpu);
65	static int emR3RawPatchTrap(PVM pVM, PVMCPU pVCpu, PCPUMCTX pCtx, int gcret);
66	static int emR3RawPrivileged(PVM pVM, PVMCPU pVCpu);
67	static int emR3RawExecuteIOInstruction(PVM pVM, PVMCPU pVCpu);
68	static int emR3RawRingSwitch(PVM pVM, PVMCPU pVCpu);
69
70	#define EMHANDLERC_WITH_PATM
71	#define emR3ExecuteInstruction emR3RawExecuteInstruction
72	#define emR3ExecuteIOInstruction emR3RawExecuteIOInstruction
73	#include "EMHandleRCTmpl.h"
74
75
76
77	#ifdef VBOX_WITH_STATISTICS
78	/**
79	* Just a braindead function to keep track of cli addresses.
80	* @param pVM The cross context VM structure.
81	* @param pVCpu The cross context virtual CPU structure.
82	* @param GCPtrInstr The EIP of the cli instruction.
83	*/
84	static void emR3RecordCli(PVM pVM, PVMCPU pVCpu, RTGCPTR GCPtrInstr)
85	{
86	PCLISTAT pRec;
87
88	pRec = (PCLISTAT)RTAvlGCPtrGet(&pVCpu->em.s.pCliStatTree, GCPtrInstr);
89	if (!pRec)
90	{
91	/* New cli instruction; insert into the tree. */
92	pRec = (PCLISTAT)MMR3HeapAllocZ(pVM, MM_TAG_EM, sizeof(*pRec));
93	Assert(pRec);
94	if (!pRec)
95	return;
96	pRec->Core.Key = GCPtrInstr;
97
98	char szCliStatName[32];
99	RTStrPrintf(szCliStatName, sizeof(szCliStatName), "/EM/Cli/0x%RGv", GCPtrInstr);
100	STAM_REG(pVM, &pRec->Counter, STAMTYPE_COUNTER, szCliStatName, STAMUNIT_OCCURENCES, "Number of times cli was executed.");
101
102	bool fRc = RTAvlGCPtrInsert(&pVCpu->em.s.pCliStatTree, &pRec->Core);
103	Assert(fRc); NOREF(fRc);
104	}
105	STAM_COUNTER_INC(&pRec->Counter);
106	STAM_COUNTER_INC(&pVCpu->em.s.StatTotalClis);
107	}
108	#endif /* VBOX_WITH_STATISTICS */
109
110
111
112	/**
113	* Resumes executing hypervisor after a debug event.
114	*
115	* This is kind of special since our current guest state is
116	* potentially out of sync.
117	*
118	* @returns VBox status code.
119	* @param pVM The cross context VM structure.
120	* @param pVCpu The cross context virtual CPU structure.
121	*/
122	int emR3RawResumeHyper(PVM pVM, PVMCPU pVCpu)
123	{
124	int rc;
125	PCPUMCTX pCtx = pVCpu->em.s.pCtx;
126	Assert(pVCpu->em.s.enmState == EMSTATE_DEBUG_HYPER);
127	Log(("emR3RawResumeHyper: cs:eip=%RTsel:%RGr efl=%RGr\n", pCtx->cs.Sel, pCtx->eip, pCtx->eflags));
128
129	/*
130	* Resume execution.
131	*/
132	CPUMRawEnter(pVCpu);
133	CPUMSetHyperEFlags(pVCpu, CPUMGetHyperEFlags(pVCpu) \| X86_EFL_RF);
134	rc = VMMR3ResumeHyper(pVM, pVCpu);
135	Log(("emR3RawResumeHyper: cs:eip=%RTsel:%RGr efl=%RGr - returned from GC with rc=%Rrc\n", pCtx->cs.Sel, pCtx->eip, pCtx->eflags, rc));
136	rc = CPUMRawLeave(pVCpu, rc);
137	VMCPU_FF_CLEAR(pVCpu, VMCPU_FF_RESUME_GUEST_MASK);
138
139	/*
140	* Deal with the return code.
141	*/
142	rc = emR3HighPriorityPostForcedActions(pVM, pVCpu, rc);
143	rc = emR3RawHandleRC(pVM, pVCpu, pCtx, rc);
144	rc = emR3RawUpdateForceFlag(pVM, pVCpu, pCtx, rc);
145	return rc;
146	}
147
148
149	/**
150	* Steps rawmode.
151	*
152	* @returns VBox status code.
153	* @param pVM The cross context VM structure.
154	* @param pVCpu The cross context virtual CPU structure.
155	*/
156	int emR3RawStep(PVM pVM, PVMCPU pVCpu)
157	{
158	Assert( pVCpu->em.s.enmState == EMSTATE_DEBUG_HYPER
159	\|\| pVCpu->em.s.enmState == EMSTATE_DEBUG_GUEST_RAW
160	\|\| pVCpu->em.s.enmState == EMSTATE_DEBUG_GUEST_REM);
161	int rc;
162	PCPUMCTX pCtx = pVCpu->em.s.pCtx;
163	bool fGuest = pVCpu->em.s.enmState != EMSTATE_DEBUG_HYPER;
164	#ifndef DEBUG_sander
165	Log(("emR3RawStep: cs:eip=%RTsel:%RGr efl=%RGr\n", fGuest ? CPUMGetGuestCS(pVCpu) : CPUMGetHyperCS(pVCpu),
166	fGuest ? CPUMGetGuestEIP(pVCpu) : CPUMGetHyperEIP(pVCpu), fGuest ? CPUMGetGuestEFlags(pVCpu) : CPUMGetHyperEFlags(pVCpu)));
167	#endif
168	if (fGuest)
169	{
170	/*
171	* Check vital forced actions, but ignore pending interrupts and timers.
172	*/
173	if ( VM_FF_IS_PENDING(pVM, VM_FF_HIGH_PRIORITY_PRE_RAW_MASK)
174	\|\| VMCPU_FF_IS_PENDING(pVCpu, VMCPU_FF_HIGH_PRIORITY_PRE_RAW_MASK))
175	{
176	rc = emR3RawForcedActions(pVM, pVCpu, pCtx);
177	VBOXVMM_EM_FF_RAW_RET(pVCpu, rc);
178	if (rc != VINF_SUCCESS)
179	return rc;
180	}
181
182	/*
183	* Set flags for single stepping.
184	*/
185	CPUMSetGuestEFlags(pVCpu, CPUMGetGuestEFlags(pVCpu) \| X86_EFL_TF \| X86_EFL_RF);
186	}
187	else
188	CPUMSetHyperEFlags(pVCpu, CPUMGetHyperEFlags(pVCpu) \| X86_EFL_TF \| X86_EFL_RF);
189
190	/*
191	* Single step.
192	* We do not start time or anything, if anything we should just do a few nanoseconds.
193	*/
194	CPUMRawEnter(pVCpu);
195	do
196	{
197	if (pVCpu->em.s.enmState == EMSTATE_DEBUG_HYPER)
198	rc = VMMR3ResumeHyper(pVM, pVCpu);
199	else
200	rc = VMMR3RawRunGC(pVM, pVCpu);
201	#ifndef DEBUG_sander
202	Log(("emR3RawStep: cs:eip=%RTsel:%RGr efl=%RGr - GC rc %Rrc\n", fGuest ? CPUMGetGuestCS(pVCpu) : CPUMGetHyperCS(pVCpu),
203	fGuest ? CPUMGetGuestEIP(pVCpu) : CPUMGetHyperEIP(pVCpu), fGuest ? CPUMGetGuestEFlags(pVCpu) : CPUMGetHyperEFlags(pVCpu), rc));
204	#endif
205	} while ( rc == VINF_SUCCESS
206	\|\| rc == VINF_EM_RAW_INTERRUPT);
207	rc = CPUMRawLeave(pVCpu, rc);
208	VMCPU_FF_CLEAR(pVCpu, VMCPU_FF_RESUME_GUEST_MASK);
209
210	/*
211	* Make sure the trap flag is cleared.
212	* (Too bad if the guest is trying to single step too.)
213	*/
214	if (fGuest)
215	CPUMSetGuestEFlags(pVCpu, CPUMGetGuestEFlags(pVCpu) & ~X86_EFL_TF);
216	else
217	CPUMSetHyperEFlags(pVCpu, CPUMGetHyperEFlags(pVCpu) & ~X86_EFL_TF);
218
219	/*
220	* Deal with the return codes.
221	*/
222	rc = emR3HighPriorityPostForcedActions(pVM, pVCpu, rc);
223	rc = emR3RawHandleRC(pVM, pVCpu, pCtx, rc);
224	rc = emR3RawUpdateForceFlag(pVM, pVCpu, pCtx, rc);
225	return rc;
226	}
227
228
229	#ifdef DEBUG
230
231
232	int emR3SingleStepExecRaw(PVM pVM, PVMCPU pVCpu, uint32_t cIterations)
233	{
234	int rc = VINF_SUCCESS;
235	EMSTATE enmOldState = pVCpu->em.s.enmState;
236	pVCpu->em.s.enmState = EMSTATE_DEBUG_GUEST_RAW;
237
238	Log(("Single step BEGIN:\n"));
239	for (uint32_t i = 0; i < cIterations; i++)
240	{
241	DBGFR3PrgStep(pVCpu);
242	DBGFR3_DISAS_INSTR_CUR_LOG(pVCpu, "RSS");
243	rc = emR3RawStep(pVM, pVCpu);
244	if ( rc != VINF_SUCCESS
245	&& rc != VINF_EM_DBG_STEPPED)
246	break;
247	}
248	Log(("Single step END: rc=%Rrc\n", rc));
249	CPUMSetGuestEFlags(pVCpu, CPUMGetGuestEFlags(pVCpu) & ~X86_EFL_TF);
250	pVCpu->em.s.enmState = enmOldState;
251	return rc;
252	}
253
254	#endif /* DEBUG */
255
256
257	/**
258	* Executes one (or perhaps a few more) instruction(s).
259	*
260	* @returns VBox status code suitable for EM.
261	*
262	* @param pVM The cross context VM structure.
263	* @param pVCpu The cross context virtual CPU structure.
264	* @param rcGC GC return code
265	* @param pszPrefix Disassembly prefix. If not NULL we'll disassemble the
266	* instruction and prefix the log output with this text.
267	*/
268	#if defined(LOG_ENABLED) \|\| defined(DOXYGEN_RUNNING)
269	static int emR3RawExecuteInstructionWorker(PVM pVM, PVMCPU pVCpu, int rcGC, const char *pszPrefix)
270	#else
271	static int emR3RawExecuteInstructionWorker(PVM pVM, PVMCPU pVCpu, int rcGC)
272	#endif
273	{
274	PCPUMCTX pCtx = pVCpu->em.s.pCtx;
275	int rc;
276
277	#ifdef LOG_ENABLED
278	/*
279	* Disassemble the instruction if requested.
280	*/
281	if (pszPrefix)
282	{
283	DBGFR3_INFO_LOG(pVM, "cpumguest", pszPrefix);
284	DBGFR3_DISAS_INSTR_CUR_LOG(pVCpu, pszPrefix);
285	}
286	#endif /* LOG_ENABLED */
287
288	/*
289	* PATM is making life more interesting.
290	* We cannot hand anything to REM which has an EIP inside patch code. So, we'll
291	* tell PATM there is a trap in this code and have it take the appropriate actions
292	* to allow us execute the code in REM.
293	*/
294	if (PATMIsPatchGCAddr(pVM, pCtx->eip))
295	{
296	Log(("emR3RawExecuteInstruction: In patch block. eip=%RRv\n", (RTRCPTR)pCtx->eip));
297
298	RTGCPTR uNewEip;
299	rc = PATMR3HandleTrap(pVM, pCtx, pCtx->eip, &uNewEip);
300	switch (rc)
301	{
302	/*
303	* It's not very useful to emulate a single instruction and then go back to raw
304	* mode; just execute the whole block until IF is set again.
305	*/
306	case VINF_SUCCESS:
307	Log(("emR3RawExecuteInstruction: Executing instruction starting at new address %RGv IF=%d VMIF=%x\n",
308	uNewEip, pCtx->eflags.Bits.u1IF, pVCpu->em.s.pPatmGCState->uVMFlags));
309	pCtx->eip = uNewEip;
310	Assert(pCtx->eip);
311
312	if (pCtx->eflags.Bits.u1IF)
313	{
314	/*
315	* The last instruction in the patch block needs to be executed!! (sti/sysexit for example)
316	*/
317	Log(("PATCH: IF=1 -> emulate last instruction as it can't be interrupted!!\n"));
318	return emR3RawExecuteInstruction(pVM, pVCpu, "PATCHIR");
319	}
320	else if (rcGC == VINF_PATM_PENDING_IRQ_AFTER_IRET)
321	{
322	/* special case: iret, that sets IF, detected a pending irq/event */
323	return emR3RawExecuteInstruction(pVM, pVCpu, "PATCHIRET");
324	}
325	return VINF_EM_RESCHEDULE_REM;
326
327	/*
328	* One instruction.
329	*/
330	case VINF_PATCH_EMULATE_INSTR:
331	Log(("emR3RawExecuteInstruction: Emulate patched instruction at %RGv IF=%d VMIF=%x\n",
332	uNewEip, pCtx->eflags.Bits.u1IF, pVCpu->em.s.pPatmGCState->uVMFlags));
333	pCtx->eip = uNewEip;
334	return emR3RawExecuteInstruction(pVM, pVCpu, "PATCHIR");
335
336	/*
337	* The patch was disabled, hand it to the REM.
338	*/
339	case VERR_PATCH_DISABLED:
340	Log(("emR3RawExecuteInstruction: Disabled patch -> new eip %RGv IF=%d VMIF=%x\n",
341	uNewEip, pCtx->eflags.Bits.u1IF, pVCpu->em.s.pPatmGCState->uVMFlags));
342	pCtx->eip = uNewEip;
343	if (pCtx->eflags.Bits.u1IF)
344	{
345	/*
346	* The last instruction in the patch block needs to be executed!! (sti/sysexit for example)
347	*/
348	Log(("PATCH: IF=1 -> emulate last instruction as it can't be interrupted!!\n"));
349	return emR3RawExecuteInstruction(pVM, pVCpu, "PATCHIR");
350	}
351	return VINF_EM_RESCHEDULE_REM;
352
353	/* Force continued patch exection; usually due to write monitored stack. */
354	case VINF_PATCH_CONTINUE:
355	return VINF_SUCCESS;
356
357	default:
358	AssertReleaseMsgFailed(("Unknown return code %Rrc from PATMR3HandleTrap\n", rc));
359	return VERR_IPE_UNEXPECTED_STATUS;
360	}
361	}
362
363
364	/*
365	* Use IEM and fallback on REM if the functionality is missing.
366	* Once IEM gets mature enough, nothing should ever fall back.
367	*/
368	//#define VBOX_WITH_FIRST_IEM_STEP_B
369	#if defined(VBOX_WITH_FIRST_IEM_STEP_B) \|\| !defined(VBOX_WITH_REM)
370	Log(("EMINS: %04x:%RGv RSP=%RGv\n", pCtx->cs.Sel, (RTGCPTR)pCtx->rip, (RTGCPTR)pCtx->rsp));
371	STAM_PROFILE_START(&pVCpu->em.s.StatIEMEmu, a);
372	rc = VBOXSTRICTRC_TODO(IEMExecOne(pVCpu));
373	STAM_PROFILE_STOP(&pVCpu->em.s.StatIEMEmu, a);
374	if (RT_SUCCESS(rc))
375	{
376	if (rc == VINF_SUCCESS \|\| rc == VINF_EM_RESCHEDULE)
377	rc = VINF_EM_RESCHEDULE;
378	# ifdef DEBUG_bird
379	else
380	AssertMsgFailed(("%Rrc\n", rc));
381	# endif
382	}
383	else if ( rc == VERR_IEM_ASPECT_NOT_IMPLEMENTED
384	\|\| rc == VERR_IEM_INSTR_NOT_IMPLEMENTED)
385	#endif
386	{
387	#ifdef VBOX_WITH_REM
388	STAM_PROFILE_START(&pVCpu->em.s.StatREMEmu, b);
389	# ifndef VBOX_WITH_FIRST_IEM_STEP_B
390	Log(("EMINS[rem]: %04x:%RGv RSP=%RGv\n", pCtx->cs.Sel, (RTGCPTR)pCtx->rip, (RTGCPTR)pCtx->rsp));
391	//# elif defined(DEBUG_bird)
392	// AssertFailed();
393	# endif
394	EMRemLock(pVM);
395	/* Flush the recompiler TLB if the VCPU has changed. */
396	if (pVM->em.s.idLastRemCpu != pVCpu->idCpu)
397	CPUMSetChangedFlags(pVCpu, CPUM_CHANGED_ALL);
398	pVM->em.s.idLastRemCpu = pVCpu->idCpu;
399
400	rc = REMR3EmulateInstruction(pVM, pVCpu);
401	EMRemUnlock(pVM);
402	STAM_PROFILE_STOP(&pVCpu->em.s.StatREMEmu, b);
403	#else /* !VBOX_WITH_REM */
404	NOREF(pVM);
405	#endif /* !VBOX_WITH_REM */
406	}
407	return rc;
408	}
409
410
411	/**
412	* Executes one (or perhaps a few more) instruction(s).
413	* This is just a wrapper for discarding pszPrefix in non-logging builds.
414	*
415	* @returns VBox status code suitable for EM.
416	* @param pVM The cross context VM structure.
417	* @param pVCpu The cross context virtual CPU structure.
418	* @param pszPrefix Disassembly prefix. If not NULL we'll disassemble the
419	* instruction and prefix the log output with this text.
420	* @param rcGC GC return code
421	*/
422	DECLINLINE(int) emR3RawExecuteInstruction(PVM pVM, PVMCPU pVCpu, const char *pszPrefix, int rcGC)
423	{
424	#ifdef LOG_ENABLED
425	return emR3RawExecuteInstructionWorker(pVM, pVCpu, rcGC, pszPrefix);
426	#else
427	return emR3RawExecuteInstructionWorker(pVM, pVCpu, rcGC);
428	#endif
429	}
430
431	/**
432	* Executes one (or perhaps a few more) IO instruction(s).
433	*
434	* @returns VBox status code suitable for EM.
435	* @param pVM The cross context VM structure.
436	* @param pVCpu The cross context virtual CPU structure.
437	*/
438	static int emR3RawExecuteIOInstruction(PVM pVM, PVMCPU pVCpu)
439	{
440	STAM_PROFILE_START(&pVCpu->em.s.StatIOEmu, a);
441
442	/* Hand it over to the interpreter. */
443	VBOXSTRICTRC rcStrict = IEMExecOne(pVCpu);
444	LogFlow(("emR3RawExecuteIOInstruction: %Rrc\n", VBOXSTRICTRC_VAL(rcStrict)));
445	STAM_COUNTER_INC(&pVCpu->em.s.CTX_SUFF(pStats)->StatIoIem);
446	STAM_PROFILE_STOP(&pVCpu->em.s.StatIOEmu, a);
447	return VBOXSTRICTRC_TODO(rcStrict);
448	}
449
450
451	/**
452	* Handle a guest context trap.
453	*
454	* @returns VBox status code suitable for EM.
455	* @param pVM The cross context VM structure.
456	* @param pVCpu The cross context virtual CPU structure.
457	*/
458	static int emR3RawGuestTrap(PVM pVM, PVMCPU pVCpu)
459	{
460	PCPUMCTX pCtx = pVCpu->em.s.pCtx;
461
462	/*
463	* Get the trap info.
464	*/
465	uint8_t u8TrapNo;
466	TRPMEVENT enmType;
467	RTGCUINT uErrorCode;
468	RTGCUINTPTR uCR2;
469	int rc = TRPMQueryTrapAll(pVCpu, &u8TrapNo, &enmType, &uErrorCode, &uCR2, NULL /* pu8InstrLen */);
470	if (RT_FAILURE(rc))
471	{
472	AssertReleaseMsgFailed(("No trap! (rc=%Rrc)\n", rc));
473	return rc;
474	}
475
476
477	#if 1 /* Experimental: Review, disable if it causes trouble. */
478	/*
479	* Handle traps in patch code first.
480	*
481	* We catch a few of these cases in RC before returning to R3 (#PF, #GP, #BP)
482	* but several traps isn't handled specially by TRPM in RC and we end up here
483	* instead. One example is #DE.
484	*/
485	uint32_t uCpl = CPUMGetGuestCPL(pVCpu);
486	if ( uCpl == 0
487	&& PATMIsPatchGCAddr(pVM, pCtx->eip))
488	{
489	LogFlow(("emR3RawGuestTrap: trap %#x in patch code; eip=%08x\n", u8TrapNo, pCtx->eip));
490	return emR3RawPatchTrap(pVM, pVCpu, pCtx, rc);
491	}
492	#endif
493
494	/*
495	* If the guest gate is marked unpatched, then we will check again if we can patch it.
496	* (This assumes that we've already tried and failed to dispatch the trap in
497	* RC for the gates that already has been patched. Which is true for most high
498	* volume traps, because these are handled specially, but not for odd ones like #DE.)
499	*/
500	if (TRPMR3GetGuestTrapHandler(pVM, u8TrapNo) == TRPM_INVALID_HANDLER)
501	{
502	CSAMR3CheckGates(pVM, u8TrapNo, 1);
503	Log(("emR3RawHandleRC: recheck gate %x -> valid=%d\n", u8TrapNo, TRPMR3GetGuestTrapHandler(pVM, u8TrapNo) != TRPM_INVALID_HANDLER));
504
505	/* If it was successful, then we could go back to raw mode. */
506	if (TRPMR3GetGuestTrapHandler(pVM, u8TrapNo) != TRPM_INVALID_HANDLER)
507	{
508	/* Must check pending forced actions as our IDT or GDT might be out of sync. */
509	rc = EMR3CheckRawForcedActions(pVM, pVCpu);
510	AssertRCReturn(rc, rc);
511
512	TRPMERRORCODE enmError = uErrorCode != ~0U
513	? TRPM_TRAP_HAS_ERRORCODE
514	: TRPM_TRAP_NO_ERRORCODE;
515	rc = TRPMForwardTrap(pVCpu, CPUMCTX2CORE(pCtx), u8TrapNo, uErrorCode, enmError, TRPM_TRAP, -1);
516	if (rc == VINF_SUCCESS /* Don't use RT_SUCCESS */)
517	{
518	TRPMResetTrap(pVCpu);
519	return VINF_EM_RESCHEDULE_RAW;
520	}
521	AssertMsg(rc == VINF_EM_RAW_GUEST_TRAP, ("%Rrc\n", rc));
522	}
523	}
524
525	/*
526	* Scan kernel code that traps; we might not get another chance.
527	*/
528	/** @todo move this up before the dispatching? */
529	if ( (pCtx->ss.Sel & X86_SEL_RPL) <= 1
530	&& !pCtx->eflags.Bits.u1VM)
531	{
532	Assert(!PATMIsPatchGCAddr(pVM, pCtx->eip));
533	CSAMR3CheckCodeEx(pVM, pCtx, pCtx->eip);
534	}
535
536	/*
537	* Trap specific handling.
538	*/
539	if (u8TrapNo == 6) /* (#UD) Invalid opcode. */
540	{
541	/*
542	* If MONITOR & MWAIT are supported, then interpret them here.
543	*/
544	DISCPUSTATE cpu;
545	rc = CPUMR3DisasmInstrCPU(pVM, pVCpu, pCtx, pCtx->rip, &cpu, "Guest Trap (#UD): ");
546	if ( RT_SUCCESS(rc)
547	&& (cpu.pCurInstr->uOpcode == OP_MONITOR \|\| cpu.pCurInstr->uOpcode == OP_MWAIT))
548	{
549	uint32_t u32Dummy, u32Features, u32ExtFeatures;
550	CPUMGetGuestCpuId(pVCpu, 1, 0, &u32Dummy, &u32Dummy, &u32ExtFeatures, &u32Features);
551	if (u32ExtFeatures & X86_CPUID_FEATURE_ECX_MONITOR)
552	{
553	rc = TRPMResetTrap(pVCpu);
554	AssertRC(rc);
555
556	rc = VBOXSTRICTRC_TODO(EMInterpretInstructionDisasState(pVCpu, &cpu, CPUMCTX2CORE(pCtx), 0, EMCODETYPE_SUPERVISOR));
557	if (RT_SUCCESS(rc))
558	return rc;
559	return emR3RawExecuteInstruction(pVM, pVCpu, "Monitor: ");
560	}
561	}
562	}
563	else if (u8TrapNo == 13) /* (#GP) Privileged exception */
564	{
565	/*
566	* Handle I/O bitmap?
567	*/
568	/** @todo We're not supposed to be here with a false guest trap concerning
569	* I/O access. We can easily handle those in RC. */
570	DISCPUSTATE cpu;
571	rc = CPUMR3DisasmInstrCPU(pVM, pVCpu, pCtx, pCtx->rip, &cpu, "Guest Trap: ");
572	if ( RT_SUCCESS(rc)
573	&& (cpu.pCurInstr->fOpType & DISOPTYPE_PORTIO))
574	{
575	/*
576	* We should really check the TSS for the IO bitmap, but it's not like this
577	* lazy approach really makes things worse.
578	*/
579	rc = TRPMResetTrap(pVCpu);
580	AssertRC(rc);
581	return emR3RawExecuteInstruction(pVM, pVCpu, "IO Guest Trap: ");
582	}
583	}
584
585	#ifdef LOG_ENABLED
586	DBGFR3_INFO_LOG(pVM, "cpumguest", "Guest trap");
587	DBGFR3_DISAS_INSTR_CUR_LOG(pVCpu, "Guest trap");
588
589	/* Get guest page information. */
590	uint64_t fFlags = 0;
591	RTGCPHYS GCPhys = 0;
592	int rc2 = PGMGstGetPage(pVCpu, uCR2, &fFlags, &GCPhys);
593	Log(("emR3RawGuestTrap: cs:eip=%04x:%08x: trap=%02x err=%08x cr2=%08x cr0=%08x%s: Phys=%RGp fFlags=%08llx %s %s %s%s rc2=%d\n",
594	pCtx->cs.Sel, pCtx->eip, u8TrapNo, uErrorCode, uCR2, (uint32_t)pCtx->cr0,
595	(enmType == TRPM_SOFTWARE_INT) ? " software" : "", GCPhys, fFlags,
596	fFlags & X86_PTE_P ? "P " : "NP", fFlags & X86_PTE_US ? "U" : "S",
597	fFlags & X86_PTE_RW ? "RW" : "R0", fFlags & X86_PTE_G ? " G" : "", rc2));
598	#endif
599
600	/*
601	* #PG has CR2.
602	* (Because of stuff like above we must set CR2 in a delayed fashion.)
603	*/
604	if (u8TrapNo == 14 /* #PG */)
605	pCtx->cr2 = uCR2;
606
607	return VINF_EM_RESCHEDULE_REM;
608	}
609
610
611	/**
612	* Handle a ring switch trap.
613	* Need to do statistics and to install patches. The result is going to REM.
614	*
615	* @returns VBox status code suitable for EM.
616	* @param pVM The cross context VM structure.
617	* @param pVCpu The cross context virtual CPU structure.
618	*/
619	static int emR3RawRingSwitch(PVM pVM, PVMCPU pVCpu)
620	{
621	int rc;
622	DISCPUSTATE Cpu;
623	PCPUMCTX pCtx = pVCpu->em.s.pCtx;
624
625	/*
626	* sysenter, syscall & callgate
627	*/
628	rc = CPUMR3DisasmInstrCPU(pVM, pVCpu, pCtx, pCtx->rip, &Cpu, "RSWITCH: ");
629	if (RT_SUCCESS(rc))
630	{
631	if (Cpu.pCurInstr->uOpcode == OP_SYSENTER)
632	{
633	if (pCtx->SysEnter.cs != 0)
634	{
635	rc = PATMR3InstallPatch(pVM, SELMToFlat(pVM, DISSELREG_CS, CPUMCTX2CORE(pCtx), pCtx->eip),
636	CPUMGetGuestCodeBits(pVCpu) == 32 ? PATMFL_CODE32 : 0);
637	if (RT_SUCCESS(rc))
638	{
639	DBGFR3_DISAS_INSTR_CUR_LOG(pVCpu, "Patched sysenter instruction");
640	return VINF_EM_RESCHEDULE_RAW;
641	}
642	}
643	}
644
645	#ifdef VBOX_WITH_STATISTICS
646	switch (Cpu.pCurInstr->uOpcode)
647	{
648	case OP_SYSENTER:
649	STAM_COUNTER_INC(&pVCpu->em.s.CTX_SUFF(pStats)->StatSysEnter);
650	break;
651	case OP_SYSEXIT:
652	STAM_COUNTER_INC(&pVCpu->em.s.CTX_SUFF(pStats)->StatSysExit);
653	break;
654	case OP_SYSCALL:
655	STAM_COUNTER_INC(&pVCpu->em.s.CTX_SUFF(pStats)->StatSysCall);
656	break;
657	case OP_SYSRET:
658	STAM_COUNTER_INC(&pVCpu->em.s.CTX_SUFF(pStats)->StatSysRet);
659	break;
660	}
661	#endif
662	}
663	else
664	AssertRC(rc);
665
666	/* go to the REM to emulate a single instruction */
667	return emR3RawExecuteInstruction(pVM, pVCpu, "RSWITCH: ");
668	}
669
670
671	/**
672	* Handle a trap (\#PF or \#GP) in patch code
673	*
674	* @returns VBox status code suitable for EM.
675	* @param pVM The cross context VM structure.
676	* @param pVCpu The cross context virtual CPU structure.
677	* @param pCtx Pointer to the guest CPU context.
678	* @param gcret GC return code.
679	*/
680	static int emR3RawPatchTrap(PVM pVM, PVMCPU pVCpu, PCPUMCTX pCtx, int gcret)
681	{
682	uint8_t u8TrapNo;
683	int rc;
684	TRPMEVENT enmType;
685	RTGCUINT uErrorCode;
686	RTGCUINTPTR uCR2;
687
688	Assert(PATMIsPatchGCAddr(pVM, pCtx->eip));
689
690	if (gcret == VINF_PATM_PATCH_INT3)
691	{
692	u8TrapNo = 3;
693	uCR2 = 0;
694	uErrorCode = 0;
695	}
696	else if (gcret == VINF_PATM_PATCH_TRAP_GP)
697	{
698	/* No active trap in this case. Kind of ugly. */
699	u8TrapNo = X86_XCPT_GP;
700	uCR2 = 0;
701	uErrorCode = 0;
702	}
703	else
704	{
705	rc = TRPMQueryTrapAll(pVCpu, &u8TrapNo, &enmType, &uErrorCode, &uCR2, NULL /* pu8InstrLen */);
706	if (RT_FAILURE(rc))
707	{
708	AssertReleaseMsgFailed(("emR3RawPatchTrap: no trap! (rc=%Rrc) gcret=%Rrc\n", rc, gcret));
709	return rc;
710	}
711	/* Reset the trap as we'll execute the original instruction again. */
712	TRPMResetTrap(pVCpu);
713	}
714
715	/*
716	* Deal with traps inside patch code.
717	* (This code won't run outside GC.)
718	*/
719	if (u8TrapNo != 1)
720	{
721	#ifdef LOG_ENABLED
722	DBGFR3_INFO_LOG(pVM, "cpumguest", "Trap in patch code");
723	DBGFR3_DISAS_INSTR_CUR_LOG(pVCpu, "Patch code");
724
725	DISCPUSTATE Cpu;
726	rc = CPUMR3DisasmInstrCPU(pVM, pVCpu, pCtx, pCtx->eip, &Cpu, "Patch code: ");
727	if ( RT_SUCCESS(rc)
728	&& Cpu.pCurInstr->uOpcode == OP_IRET)
729	{
730	uint32_t eip, selCS, uEFlags;
731
732	/* Iret crashes are bad as we have already changed the flags on the stack */
733	rc = PGMPhysSimpleReadGCPtr(pVCpu, &eip, pCtx->esp, 4);
734	rc \|= PGMPhysSimpleReadGCPtr(pVCpu, &selCS, pCtx->esp+4, 4);
735	rc \|= PGMPhysSimpleReadGCPtr(pVCpu, &uEFlags, pCtx->esp+8, 4);
736	if (rc == VINF_SUCCESS)
737	{
738	if ( (uEFlags & X86_EFL_VM)
739	\|\| (selCS & X86_SEL_RPL) == 3)
740	{
741	uint32_t selSS, esp;
742
743	rc \|= PGMPhysSimpleReadGCPtr(pVCpu, &esp, pCtx->esp + 12, 4);
744	rc \|= PGMPhysSimpleReadGCPtr(pVCpu, &selSS, pCtx->esp + 16, 4);
745
746	if (uEFlags & X86_EFL_VM)
747	{
748	uint32_t selDS, selES, selFS, selGS;
749	rc = PGMPhysSimpleReadGCPtr(pVCpu, &selES, pCtx->esp + 20, 4);
750	rc \|= PGMPhysSimpleReadGCPtr(pVCpu, &selDS, pCtx->esp + 24, 4);
751	rc \|= PGMPhysSimpleReadGCPtr(pVCpu, &selFS, pCtx->esp + 28, 4);
752	rc \|= PGMPhysSimpleReadGCPtr(pVCpu, &selGS, pCtx->esp + 32, 4);
753	if (rc == VINF_SUCCESS)
754	{
755	Log(("Patch code: IRET->VM stack frame: return address %04X:%08RX32 eflags=%08x ss:esp=%04X:%08RX32\n", selCS, eip, uEFlags, selSS, esp));
756	Log(("Patch code: IRET->VM stack frame: DS=%04X ES=%04X FS=%04X GS=%04X\n", selDS, selES, selFS, selGS));
757	}
758	}
759	else
760	Log(("Patch code: IRET stack frame: return address %04X:%08RX32 eflags=%08x ss:esp=%04X:%08RX32\n", selCS, eip, uEFlags, selSS, esp));
761	}
762	else
763	Log(("Patch code: IRET stack frame: return address %04X:%08RX32 eflags=%08x\n", selCS, eip, uEFlags));
764	}
765	}
766	#endif /* LOG_ENABLED */
767	Log(("emR3RawPatchTrap: in patch: eip=%08x: trap=%02x err=%08x cr2=%08x cr0=%08x\n",
768	pCtx->eip, u8TrapNo, uErrorCode, uCR2, (uint32_t)pCtx->cr0));
769
770	RTGCPTR uNewEip;
771	rc = PATMR3HandleTrap(pVM, pCtx, pCtx->eip, &uNewEip);
772	switch (rc)
773	{
774	/*
775	* Execute the faulting instruction.
776	*/
777	case VINF_SUCCESS:
778	{
779	/** @todo execute a whole block */
780	Log(("emR3RawPatchTrap: Executing faulting instruction at new address %RGv\n", uNewEip));
781	if (!(pVCpu->em.s.pPatmGCState->uVMFlags & X86_EFL_IF))
782	Log(("emR3RawPatchTrap: Virtual IF flag disabled!!\n"));
783
784	pCtx->eip = uNewEip;
785	AssertRelease(pCtx->eip);
786
787	if (pCtx->eflags.Bits.u1IF)
788	{
789	/* Windows XP lets irets fault intentionally and then takes action based on the opcode; an
790	* int3 patch overwrites it and leads to blue screens. Remove the patch in this case.
791	*/
792	if ( u8TrapNo == X86_XCPT_GP
793	&& PATMIsInt3Patch(pVM, pCtx->eip, NULL, NULL))
794	{
795	/** @todo move to PATMR3HandleTrap */
796	Log(("Possible Windows XP iret fault at %08RX32\n", pCtx->eip));
797	PATMR3RemovePatch(pVM, pCtx->eip);
798	}
799
800	/** @todo Knoppix 5 regression when returning VINF_SUCCESS here and going back to raw mode. */
801	/* Note: possibly because a reschedule is required (e.g. iret to V86 code) */
802
803	return emR3RawExecuteInstruction(pVM, pVCpu, "PATCHIR");
804	/* Interrupts are enabled; just go back to the original instruction.
805	return VINF_SUCCESS; */
806	}
807	return VINF_EM_RESCHEDULE_REM;
808	}
809
810	/*
811	* One instruction.
812	*/
813	case VINF_PATCH_EMULATE_INSTR:
814	Log(("emR3RawPatchTrap: Emulate patched instruction at %RGv IF=%d VMIF=%x\n",
815	uNewEip, pCtx->eflags.Bits.u1IF, pVCpu->em.s.pPatmGCState->uVMFlags));
816	pCtx->eip = uNewEip;
817	AssertRelease(pCtx->eip);
818	return emR3RawExecuteInstruction(pVM, pVCpu, "PATCHEMUL: ");
819
820	/*
821	* The patch was disabled, hand it to the REM.
822	*/
823	case VERR_PATCH_DISABLED:
824	if (!(pVCpu->em.s.pPatmGCState->uVMFlags & X86_EFL_IF))
825	Log(("emR3RawPatchTrap: Virtual IF flag disabled!!\n"));
826	pCtx->eip = uNewEip;
827	AssertRelease(pCtx->eip);
828
829	if (pCtx->eflags.Bits.u1IF)
830	{
831	/*
832	* The last instruction in the patch block needs to be executed!! (sti/sysexit for example)
833	*/
834	Log(("PATCH: IF=1 -> emulate last instruction as it can't be interrupted!!\n"));
835	return emR3RawExecuteInstruction(pVM, pVCpu, "PATCHIR");
836	}
837	return VINF_EM_RESCHEDULE_REM;
838
839	/* Force continued patch exection; usually due to write monitored stack. */
840	case VINF_PATCH_CONTINUE:
841	return VINF_SUCCESS;
842
843	/*
844	* Anything else is fatal.
845	*/
846	default:
847	AssertReleaseMsgFailed(("Unknown return code %Rrc from PATMR3HandleTrap!\n", rc));
848	return VERR_IPE_UNEXPECTED_STATUS;
849	}
850	}
851	return VINF_SUCCESS;
852	}
853
854
855	/**
856	* Handle a privileged instruction.
857	*
858	* @returns VBox status code suitable for EM.
859	* @param pVM The cross context VM structure.
860	* @param pVCpu The cross context virtual CPU structure.
861	*/
862	static int emR3RawPrivileged(PVM pVM, PVMCPU pVCpu)
863	{
864	PCPUMCTX pCtx = pVCpu->em.s.pCtx;
865
866	Assert(!pCtx->eflags.Bits.u1VM);
867
868	if (PATMIsEnabled(pVM))
869	{
870	/*
871	* Check if in patch code.
872	*/
873	if (PATMR3IsInsidePatchJump(pVM, pCtx->eip, NULL))
874	{
875	#ifdef LOG_ENABLED
876	DBGFR3_INFO_LOG(pVM, "cpumguest", "PRIV");
877	#endif
878	AssertMsgFailed(("FATAL ERROR: executing random instruction inside generated patch jump %08x\n", pCtx->eip));
879	return VERR_EM_RAW_PATCH_CONFLICT;
880	}
881	if ( (pCtx->ss.Sel & X86_SEL_RPL) == 0
882	&& !pCtx->eflags.Bits.u1VM
883	&& !PATMIsPatchGCAddr(pVM, pCtx->eip))
884	{
885	int rc = PATMR3InstallPatch(pVM, SELMToFlat(pVM, DISSELREG_CS, CPUMCTX2CORE(pCtx), pCtx->eip),
886	CPUMGetGuestCodeBits(pVCpu) == 32 ? PATMFL_CODE32 : 0);
887	if (RT_SUCCESS(rc))
888	{
889	#ifdef LOG_ENABLED
890	DBGFR3_INFO_LOG(pVM, "cpumguest", "PRIV");
891	#endif
892	DBGFR3_DISAS_INSTR_CUR_LOG(pVCpu, "Patched privileged instruction");
893	return VINF_SUCCESS;
894	}
895	}
896	}
897
898	#ifdef LOG_ENABLED
899	if (!PATMIsPatchGCAddr(pVM, pCtx->eip))
900	{
901	DBGFR3_INFO_LOG(pVM, "cpumguest", "PRIV");
902	DBGFR3_DISAS_INSTR_CUR_LOG(pVCpu, "Privileged instr");
903	}
904	#endif
905
906	/*
907	* Instruction statistics and logging.
908	*/
909	DISCPUSTATE Cpu;
910	int rc;
911
912	rc = CPUMR3DisasmInstrCPU(pVM, pVCpu, pCtx, pCtx->rip, &Cpu, "PRIV: ");
913	if (RT_SUCCESS(rc))
914	{
915	#ifdef VBOX_WITH_STATISTICS
916	PEMSTATS pStats = pVCpu->em.s.CTX_SUFF(pStats);
917	switch (Cpu.pCurInstr->uOpcode)
918	{
919	case OP_INVLPG:
920	STAM_COUNTER_INC(&pStats->StatInvlpg);
921	break;
922	case OP_IRET:
923	STAM_COUNTER_INC(&pStats->StatIret);
924	break;
925	case OP_CLI:
926	STAM_COUNTER_INC(&pStats->StatCli);
927	emR3RecordCli(pVM, pVCpu, pCtx->rip);
928	break;
929	case OP_STI:
930	STAM_COUNTER_INC(&pStats->StatSti);
931	break;
932	case OP_INSB:
933	case OP_INSWD:
934	case OP_IN:
935	case OP_OUTSB:
936	case OP_OUTSWD:
937	case OP_OUT:
938	AssertMsgFailed(("Unexpected privileged exception due to port IO\n"));
939	break;
940
941	case OP_MOV_CR:
942	if (Cpu.Param1.fUse & DISUSE_REG_GEN32)
943	{
944	//read
945	Assert(Cpu.Param2.fUse & DISUSE_REG_CR);
946	Assert(Cpu.Param2.Base.idxCtrlReg <= DISCREG_CR4);
947	STAM_COUNTER_INC(&pStats->StatMovReadCR[Cpu.Param2.Base.idxCtrlReg]);
948	}
949	else
950	{
951	//write
952	Assert(Cpu.Param1.fUse & DISUSE_REG_CR);
953	Assert(Cpu.Param1.Base.idxCtrlReg <= DISCREG_CR4);
954	STAM_COUNTER_INC(&pStats->StatMovWriteCR[Cpu.Param1.Base.idxCtrlReg]);
955	}
956	break;
957
958	case OP_MOV_DR:
959	STAM_COUNTER_INC(&pStats->StatMovDRx);
960	break;
961	case OP_LLDT:
962	STAM_COUNTER_INC(&pStats->StatMovLldt);
963	break;
964	case OP_LIDT:
965	STAM_COUNTER_INC(&pStats->StatMovLidt);
966	break;
967	case OP_LGDT:
968	STAM_COUNTER_INC(&pStats->StatMovLgdt);
969	break;
970	case OP_SYSENTER:
971	STAM_COUNTER_INC(&pStats->StatSysEnter);
972	break;
973	case OP_SYSEXIT:
974	STAM_COUNTER_INC(&pStats->StatSysExit);
975	break;
976	case OP_SYSCALL:
977	STAM_COUNTER_INC(&pStats->StatSysCall);
978	break;
979	case OP_SYSRET:
980	STAM_COUNTER_INC(&pStats->StatSysRet);
981	break;
982	case OP_HLT:
983	STAM_COUNTER_INC(&pStats->StatHlt);
984	break;
985	default:
986	STAM_COUNTER_INC(&pStats->StatMisc);
987	Log4(("emR3RawPrivileged: opcode=%d\n", Cpu.pCurInstr->uOpcode));
988	break;
989	}
990	#endif /* VBOX_WITH_STATISTICS */
991	if ( (pCtx->ss.Sel & X86_SEL_RPL) == 0
992	&& !pCtx->eflags.Bits.u1VM
993	&& CPUMGetGuestCodeBits(pVCpu) == 32)
994	{
995	STAM_PROFILE_START(&pVCpu->em.s.StatPrivEmu, a);
996	switch (Cpu.pCurInstr->uOpcode)
997	{
998	case OP_CLI:
999	pCtx->eflags.u32 &= ~X86_EFL_IF;
1000	Assert(Cpu.cbInstr == 1);
1001	pCtx->rip += Cpu.cbInstr;
1002	STAM_PROFILE_STOP(&pVCpu->em.s.StatPrivEmu, a);
1003	return VINF_EM_RESCHEDULE_REM; /* must go to the recompiler now! */
1004
1005	case OP_STI:
1006	pCtx->eflags.u32 \|= X86_EFL_IF;
1007	EMSetInhibitInterruptsPC(pVCpu, pCtx->rip + Cpu.cbInstr);
1008	Assert(Cpu.cbInstr == 1);
1009	pCtx->rip += Cpu.cbInstr;
1010	STAM_PROFILE_STOP(&pVCpu->em.s.StatPrivEmu, a);
1011	return VINF_SUCCESS;
1012
1013	case OP_HLT:
1014	if (PATMIsPatchGCAddr(pVM, pCtx->eip))
1015	{
1016	PATMTRANSSTATE enmState;
1017	RTGCPTR pOrgInstrGC = PATMR3PatchToGCPtr(pVM, pCtx->eip, &enmState);
1018
1019	if (enmState == PATMTRANS_OVERWRITTEN)
1020	{
1021	rc = PATMR3DetectConflict(pVM, pOrgInstrGC, pOrgInstrGC);
1022	Assert(rc == VERR_PATCH_DISABLED);
1023	/* Conflict detected, patch disabled */
1024	Log(("emR3RawPrivileged: detected conflict -> disabled patch at %08RX32\n", pCtx->eip));
1025
1026	enmState = PATMTRANS_SAFE;
1027	}
1028
1029	/* The translation had better be successful. Otherwise we can't recover. */
1030	AssertReleaseMsg(pOrgInstrGC && enmState != PATMTRANS_OVERWRITTEN, ("Unable to translate instruction address at %08RX32\n", pCtx->eip));
1031	if (enmState != PATMTRANS_OVERWRITTEN)
1032	pCtx->eip = pOrgInstrGC;
1033	}
1034	/* no break; we could just return VINF_EM_HALT here */
1035
1036	case OP_MOV_CR:
1037	case OP_MOV_DR:
1038	#ifdef LOG_ENABLED
1039	if (PATMIsPatchGCAddr(pVM, pCtx->eip))
1040	{
1041	DBGFR3_INFO_LOG(pVM, "cpumguest", "PRIV");
1042	DBGFR3_DISAS_INSTR_CUR_LOG(pVCpu, "Privileged instr");
1043	}
1044	#endif
1045
1046	rc = VBOXSTRICTRC_TODO(EMInterpretInstructionDisasState(pVCpu, &Cpu, CPUMCTX2CORE(pCtx), 0, EMCODETYPE_SUPERVISOR));
1047	if (RT_SUCCESS(rc))
1048	{
1049	STAM_PROFILE_STOP(&pVCpu->em.s.StatPrivEmu, a);
1050
1051	if ( Cpu.pCurInstr->uOpcode == OP_MOV_CR
1052	&& Cpu.Param1.fUse == DISUSE_REG_CR /* write */
1053	)
1054	{
1055	/* Deal with CR0 updates inside patch code that force
1056	* us to go to the recompiler.
1057	*/
1058	if ( PATMIsPatchGCAddr(pVM, pCtx->rip)
1059	&& (pCtx->cr0 & (X86_CR0_WP\|X86_CR0_PG\|X86_CR0_PE)) != (X86_CR0_WP\|X86_CR0_PG\|X86_CR0_PE))
1060	{
1061	PATMTRANSSTATE enmState;
1062	RTGCPTR pOrgInstrGC = PATMR3PatchToGCPtr(pVM, pCtx->rip, &enmState);
1063
1064	Log(("Force recompiler switch due to cr0 (%RGp) update rip=%RGv -> %RGv (enmState=%d)\n", pCtx->cr0, pCtx->rip, pOrgInstrGC, enmState));
1065	if (enmState == PATMTRANS_OVERWRITTEN)
1066	{
1067	rc = PATMR3DetectConflict(pVM, pOrgInstrGC, pOrgInstrGC);
1068	Assert(rc == VERR_PATCH_DISABLED);
1069	/* Conflict detected, patch disabled */
1070	Log(("emR3RawPrivileged: detected conflict -> disabled patch at %RGv\n", (RTGCPTR)pCtx->rip));
1071	enmState = PATMTRANS_SAFE;
1072	}
1073	/* The translation had better be successful. Otherwise we can't recover. */
1074	AssertReleaseMsg(pOrgInstrGC && enmState != PATMTRANS_OVERWRITTEN, ("Unable to translate instruction address at %RGv\n", (RTGCPTR)pCtx->rip));
1075	if (enmState != PATMTRANS_OVERWRITTEN)
1076	pCtx->rip = pOrgInstrGC;
1077	}
1078
1079	/* Reschedule is necessary as the execution/paging mode might have changed. */
1080	return VINF_EM_RESCHEDULE;
1081	}
1082	return rc; /* can return VINF_EM_HALT as well. */
1083	}
1084	AssertMsgReturn(rc == VERR_EM_INTERPRETER, ("%Rrc\n", rc), rc);
1085	break; /* fall back to the recompiler */
1086	}
1087	STAM_PROFILE_STOP(&pVCpu->em.s.StatPrivEmu, a);
1088	}
1089	}
1090
1091	if (PATMIsPatchGCAddr(pVM, pCtx->eip))
1092	return emR3RawPatchTrap(pVM, pVCpu, pCtx, VINF_PATM_PATCH_TRAP_GP);
1093
1094	return emR3RawExecuteInstruction(pVM, pVCpu, "PRIV");
1095	}
1096
1097
1098	/**
1099	* Update the forced rawmode execution modifier.
1100	*
1101	* This function is called when we're returning from the raw-mode loop(s). If we're
1102	* in patch code, it will set a flag forcing execution to be resumed in raw-mode,
1103	* if not in patch code, the flag will be cleared.
1104	*
1105	* We should never interrupt patch code while it's being executed. Cli patches can
1106	* contain big code blocks, but they are always executed with IF=0. Other patches
1107	* replace single instructions and should be atomic.
1108	*
1109	* @returns Updated rc.
1110	*
1111	* @param pVM The cross context VM structure.
1112	* @param pVCpu The cross context virtual CPU structure.
1113	* @param pCtx Pointer to the guest CPU context.
1114	* @param rc The result code.
1115	*/
1116	int emR3RawUpdateForceFlag(PVM pVM, PVMCPU pVCpu, PCPUMCTX pCtx, int rc)
1117	{
1118	if (PATMIsPatchGCAddr(pVM, pCtx->eip)) /** @todo check cs selector base/type */
1119	{
1120	/* ignore reschedule attempts. */
1121	switch (rc)
1122	{
1123	case VINF_EM_RESCHEDULE:
1124	case VINF_EM_RESCHEDULE_REM:
1125	LogFlow(("emR3RawUpdateForceFlag: patch address -> force raw reschedule\n"));
1126	rc = VINF_SUCCESS;
1127	break;
1128	}
1129	pVCpu->em.s.fForceRAW = true;
1130	}
1131	else
1132	pVCpu->em.s.fForceRAW = false;
1133	return rc;
1134	}
1135
1136
1137	/**
1138	* Check for pending raw actions
1139	*
1140	* @returns VBox status code. May return VINF_EM_NO_MEMORY but none of the other
1141	* EM statuses.
1142	* @param pVM The cross context VM structure.
1143	* @param pVCpu The cross context virtual CPU structure.
1144	*/
1145	VMMR3_INT_DECL(int) EMR3CheckRawForcedActions(PVM pVM, PVMCPU pVCpu)
1146	{
1147	int rc = emR3RawForcedActions(pVM, pVCpu, pVCpu->em.s.pCtx);
1148	VBOXVMM_EM_FF_RAW_RET(pVCpu, rc);
1149	return rc;
1150	}
1151
1152
1153	/**
1154	* Process raw-mode specific forced actions.
1155	*
1156	* This function is called when any FFs in the VM_FF_HIGH_PRIORITY_PRE_RAW_MASK is pending.
1157	*
1158	* @returns VBox status code. May return VINF_EM_NO_MEMORY but none of the other
1159	* EM statuses.
1160	* @param pVM The cross context VM structure.
1161	* @param pVCpu The cross context virtual CPU structure.
1162	* @param pCtx Pointer to the guest CPU context.
1163	*/
1164	static int emR3RawForcedActions(PVM pVM, PVMCPU pVCpu, PCPUMCTX pCtx)
1165	{
1166	/*
1167	* Note that the order is vitally important!
1168	* Also note that SELMR3UpdateFromCPUM may trigger VM_FF_SELM_SYNC_TSS.
1169	*/
1170	VBOXVMM_EM_FF_RAW(pVCpu, pVM->fGlobalForcedActions, pVCpu->fLocalForcedActions);
1171
1172	/*
1173	* Sync selector tables.
1174	*/
1175	if (VMCPU_FF_IS_PENDING(pVCpu, VMCPU_FF_SELM_SYNC_GDT \| VMCPU_FF_SELM_SYNC_LDT))
1176	{
1177	VBOXSTRICTRC rcStrict = SELMR3UpdateFromCPUM(pVM, pVCpu);
1178	if (rcStrict != VINF_SUCCESS)
1179	return VBOXSTRICTRC_TODO(rcStrict);
1180	}
1181
1182	/*
1183	* Sync IDT.
1184	*
1185	* The CSAMR3CheckGates call in TRPMR3SyncIDT may call PGMPrefetchPage
1186	* and PGMShwModifyPage, so we're in for trouble if for instance a
1187	* PGMSyncCR3+pgmR3PoolClearAll is pending.
1188	*/
1189	if (VMCPU_FF_IS_PENDING(pVCpu, VMCPU_FF_TRPM_SYNC_IDT))
1190	{
1191	if ( VMCPU_FF_IS_PENDING(pVCpu, VMCPU_FF_PGM_SYNC_CR3)
1192	&& EMIsRawRing0Enabled(pVM)
1193	&& CSAMIsEnabled(pVM))
1194	{
1195	int rc = PGMSyncCR3(pVCpu, pCtx->cr0, pCtx->cr3, pCtx->cr4, VMCPU_FF_IS_SET(pVCpu, VMCPU_FF_PGM_SYNC_CR3));
1196	if (RT_FAILURE(rc))
1197	return rc;
1198	}
1199
1200	int rc = TRPMR3SyncIDT(pVM, pVCpu);
1201	if (RT_FAILURE(rc))
1202	return rc;
1203	}
1204
1205	/*
1206	* Sync TSS.
1207	*/
1208	if (VMCPU_FF_IS_PENDING(pVCpu, VMCPU_FF_SELM_SYNC_TSS))
1209	{
1210	int rc = SELMR3SyncTSS(pVM, pVCpu);
1211	if (RT_FAILURE(rc))
1212	return rc;
1213	}
1214
1215	/*
1216	* Sync page directory.
1217	*/
1218	if (VMCPU_FF_IS_PENDING(pVCpu, VMCPU_FF_PGM_SYNC_CR3 \| VMCPU_FF_PGM_SYNC_CR3_NON_GLOBAL))
1219	{
1220	Assert(pVCpu->em.s.enmState != EMSTATE_WAIT_SIPI);
1221	int rc = PGMSyncCR3(pVCpu, pCtx->cr0, pCtx->cr3, pCtx->cr4, VMCPU_FF_IS_SET(pVCpu, VMCPU_FF_PGM_SYNC_CR3));
1222	if (RT_FAILURE(rc))
1223	return rc;
1224
1225	Assert(!VMCPU_FF_IS_PENDING(pVCpu, VMCPU_FF_SELM_SYNC_GDT \| VMCPU_FF_SELM_SYNC_LDT));
1226
1227	/* Prefetch pages for EIP and ESP. */
1228	/** @todo This is rather expensive. Should investigate if it really helps at all. */
1229	rc = PGMPrefetchPage(pVCpu, SELMToFlat(pVM, DISSELREG_CS, CPUMCTX2CORE(pCtx), pCtx->rip));
1230	if (rc == VINF_SUCCESS)
1231	rc = PGMPrefetchPage(pVCpu, SELMToFlat(pVM, DISSELREG_SS, CPUMCTX2CORE(pCtx), pCtx->rsp));
1232	if (rc != VINF_SUCCESS)
1233	{
1234	if (rc != VINF_PGM_SYNC_CR3)
1235	{
1236	AssertLogRelMsgReturn(RT_FAILURE(rc), ("%Rrc\n", rc), VERR_IPE_UNEXPECTED_INFO_STATUS);
1237	return rc;
1238	}
1239	rc = PGMSyncCR3(pVCpu, pCtx->cr0, pCtx->cr3, pCtx->cr4, VMCPU_FF_IS_SET(pVCpu, VMCPU_FF_PGM_SYNC_CR3));
1240	if (RT_FAILURE(rc))
1241	return rc;
1242	}
1243	/** @todo maybe prefetch the supervisor stack page as well */
1244	Assert(!VMCPU_FF_IS_PENDING(pVCpu, VMCPU_FF_SELM_SYNC_GDT \| VMCPU_FF_SELM_SYNC_LDT));
1245	}
1246
1247	/*
1248	* Allocate handy pages (just in case the above actions have consumed some pages).
1249	*/
1250	if (VM_FF_IS_PENDING_EXCEPT(pVM, VM_FF_PGM_NEED_HANDY_PAGES, VM_FF_PGM_NO_MEMORY))
1251	{
1252	int rc = PGMR3PhysAllocateHandyPages(pVM);
1253	if (RT_FAILURE(rc))
1254	return rc;
1255	}
1256
1257	/*
1258	* Check whether we're out of memory now.
1259	*
1260	* This may stem from some of the above actions or operations that has been executed
1261	* since we ran FFs. The allocate handy pages must for instance always be followed by
1262	* this check.
1263	*/
1264	if (VM_FF_IS_PENDING(pVM, VM_FF_PGM_NO_MEMORY))
1265	return VINF_EM_NO_MEMORY;
1266
1267	return VINF_SUCCESS;
1268	}
1269
1270
1271	/**
1272	* Executes raw code.
1273	*
1274	* This function contains the raw-mode version of the inner
1275	* execution loop (the outer loop being in EMR3ExecuteVM()).
1276	*
1277	* @returns VBox status code. The most important ones are: VINF_EM_RESCHEDULE,
1278	* VINF_EM_RESCHEDULE_REM, VINF_EM_SUSPEND, VINF_EM_RESET and VINF_EM_TERMINATE.
1279	*
1280	* @param pVM The cross context VM structure.
1281	* @param pVCpu The cross context virtual CPU structure.
1282	* @param pfFFDone Where to store an indicator telling whether or not
1283	* FFs were done before returning.
1284	*/
1285	int emR3RawExecute(PVM pVM, PVMCPU pVCpu, bool *pfFFDone)
1286	{
1287	STAM_REL_PROFILE_ADV_START(&pVCpu->em.s.StatRAWTotal, a);
1288
1289	int rc = VERR_IPE_UNINITIALIZED_STATUS;
1290	PCPUMCTX pCtx = pVCpu->em.s.pCtx;
1291	LogFlow(("emR3RawExecute: (cs:eip=%04x:%08x)\n", pCtx->cs.Sel, pCtx->eip));
1292	pVCpu->em.s.fForceRAW = false;
1293	*pfFFDone = false;
1294
1295
1296	/*
1297	*
1298	* Spin till we get a forced action or raw mode status code resulting in
1299	* in anything but VINF_SUCCESS or VINF_EM_RESCHEDULE_RAW.
1300	*
1301	*/
1302	for (;;)
1303	{
1304	STAM_PROFILE_ADV_START(&pVCpu->em.s.StatRAWEntry, b);
1305
1306	/*
1307	* Check various preconditions.
1308	*/
1309	#ifdef VBOX_STRICT
1310	# ifdef VBOX_WITH_REM
1311	Assert(REMR3QueryPendingInterrupt(pVM, pVCpu) == REM_NO_PENDING_IRQ);
1312	# endif
1313	Assert(pCtx->eflags.Bits.u1VM \|\| (pCtx->ss.Sel & X86_SEL_RPL) == 3 \|\| (pCtx->ss.Sel & X86_SEL_RPL) == 0
1314	\|\| (EMIsRawRing1Enabled(pVM) && (pCtx->ss.Sel & X86_SEL_RPL) == 1));
1315	AssertMsg( (pCtx->eflags.u32 & X86_EFL_IF)
1316	\|\| PATMShouldUseRawMode(pVM, (RTGCPTR)pCtx->eip),
1317	("Tried to execute code with IF at EIP=%08x!\n", pCtx->eip));
1318	if ( !VMCPU_FF_IS_PENDING(pVCpu, VMCPU_FF_PGM_SYNC_CR3 \| VMCPU_FF_PGM_SYNC_CR3_NON_GLOBAL)
1319	&& PGMMapHasConflicts(pVM))
1320	{
1321	PGMMapCheck(pVM);
1322	AssertMsgFailed(("We should not get conflicts any longer!!!\n"));
1323	return VERR_EM_UNEXPECTED_MAPPING_CONFLICT;
1324	}
1325	#endif /* VBOX_STRICT */
1326
1327	/*
1328	* Process high priority pre-execution raw-mode FFs.
1329	*/
1330	if ( VM_FF_IS_PENDING(pVM, VM_FF_HIGH_PRIORITY_PRE_RAW_MASK)
1331	\|\| VMCPU_FF_IS_PENDING(pVCpu, VMCPU_FF_HIGH_PRIORITY_PRE_RAW_MASK))
1332	{
1333	rc = emR3RawForcedActions(pVM, pVCpu, pCtx);
1334	VBOXVMM_EM_FF_RAW_RET(pVCpu, rc);
1335	if (rc != VINF_SUCCESS)
1336	break;
1337	}
1338
1339	/*
1340	* If we're going to execute ring-0 code, the guest state needs to
1341	* be modified a bit and some of the state components (IF, SS/CS RPL,
1342	* and perhaps EIP) needs to be stored with PATM.
1343	*/
1344	rc = CPUMRawEnter(pVCpu);
1345	if (rc != VINF_SUCCESS)
1346	{
1347	STAM_PROFILE_ADV_STOP(&pVCpu->em.s.StatRAWEntry, b);
1348	break;
1349	}
1350
1351	/*
1352	* Scan code before executing it. Don't bother with user mode or V86 code
1353	*/
1354	if ( (pCtx->ss.Sel & X86_SEL_RPL) <= 1
1355	&& !pCtx->eflags.Bits.u1VM
1356	&& !PATMIsPatchGCAddr(pVM, pCtx->eip))
1357	{
1358	STAM_PROFILE_ADV_SUSPEND(&pVCpu->em.s.StatRAWEntry, b);
1359	CSAMR3CheckCodeEx(pVM, pCtx, pCtx->eip);
1360	STAM_PROFILE_ADV_RESUME(&pVCpu->em.s.StatRAWEntry, b);
1361	if ( VM_FF_IS_PENDING(pVM, VM_FF_HIGH_PRIORITY_PRE_RAW_MASK)
1362	\|\| VMCPU_FF_IS_PENDING(pVCpu, VMCPU_FF_HIGH_PRIORITY_PRE_RAW_MASK))
1363	{
1364	rc = emR3RawForcedActions(pVM, pVCpu, pCtx);
1365	VBOXVMM_EM_FF_RAW_RET(pVCpu, rc);
1366	if (rc != VINF_SUCCESS)
1367	{
1368	rc = CPUMRawLeave(pVCpu, rc);
1369	break;
1370	}
1371	}
1372	}
1373
1374	#ifdef LOG_ENABLED
1375	/*
1376	* Log important stuff before entering GC.
1377	*/
1378	PPATMGCSTATE pGCState = PATMR3QueryGCStateHC(pVM);
1379	if (pCtx->eflags.Bits.u1VM)
1380	Log(("RV86: %04x:%08x IF=%d VMFlags=%x\n", pCtx->cs.Sel, pCtx->eip, pCtx->eflags.Bits.u1IF, pGCState->uVMFlags));
1381	else if ((pCtx->ss.Sel & X86_SEL_RPL) == 1)
1382	Log(("RR0: %x:%08x ESP=%x:%08x EFL=%x IF=%d/%d VMFlags=%x PIF=%d CPL=%d (Scanned=%d)\n",
1383	pCtx->cs.Sel, pCtx->eip, pCtx->ss.Sel, pCtx->esp, CPUMRawGetEFlags(pVCpu), !!(pGCState->uVMFlags & X86_EFL_IF), pCtx->eflags.Bits.u1IF,
1384	pGCState->uVMFlags, pGCState->fPIF, (pCtx->ss.Sel & X86_SEL_RPL), CSAMIsPageScanned(pVM, (RTGCPTR)pCtx->eip)));
1385	# ifdef VBOX_WITH_RAW_RING1
1386	else if ((pCtx->ss.Sel & X86_SEL_RPL) == 2)
1387	Log(("RR1: %x:%08x ESP=%x:%08x IF=%d VMFlags=%x CPL=%x\n", pCtx->cs.Sel, pCtx->eip, pCtx->ss.Sel, pCtx->esp, pCtx->eflags.Bits.u1IF, pGCState->uVMFlags, (pCtx->ss.Sel & X86_SEL_RPL)));
1388	# endif
1389	else if ((pCtx->ss.Sel & X86_SEL_RPL) == 3)
1390	Log(("RR3: %x:%08x ESP=%x:%08x IF=%d VMFlags=%x\n", pCtx->cs.Sel, pCtx->eip, pCtx->ss.Sel, pCtx->esp, pCtx->eflags.Bits.u1IF, pGCState->uVMFlags));
1391	#endif /* LOG_ENABLED */
1392
1393
1394
1395	/*
1396	* Execute the code.
1397	*/
1398	STAM_PROFILE_ADV_STOP(&pVCpu->em.s.StatRAWEntry, b);
1399	if (RT_LIKELY(emR3IsExecutionAllowed(pVM, pVCpu)))
1400	{
1401	STAM_PROFILE_START(&pVCpu->em.s.StatRAWExec, c);
1402	VBOXVMM_EM_RAW_RUN_PRE(pVCpu, pCtx);
1403	rc = VMMR3RawRunGC(pVM, pVCpu);
1404	VBOXVMM_EM_RAW_RUN_RET(pVCpu, pCtx, rc);
1405	STAM_PROFILE_STOP(&pVCpu->em.s.StatRAWExec, c);
1406	}
1407	else
1408	{
1409	/* Give up this time slice; virtual time continues */
1410	STAM_REL_PROFILE_ADV_START(&pVCpu->em.s.StatCapped, u);
1411	RTThreadSleep(5);
1412	STAM_REL_PROFILE_ADV_STOP(&pVCpu->em.s.StatCapped, u);
1413	rc = VINF_SUCCESS;
1414	}
1415	STAM_PROFILE_ADV_START(&pVCpu->em.s.StatRAWTail, d);
1416
1417	LogFlow(("RR%u-E: %08x ESP=%08x EFL=%x IF=%d/%d VMFlags=%x PIF=%d\n",
1418	(pCtx->ss.Sel & X86_SEL_RPL), pCtx->eip, pCtx->esp, CPUMRawGetEFlags(pVCpu),
1419	!!(pGCState->uVMFlags & X86_EFL_IF), pCtx->eflags.Bits.u1IF, pGCState->uVMFlags, pGCState->fPIF));
1420	LogFlow(("VMMR3RawRunGC returned %Rrc\n", rc));
1421
1422
1423
1424	/*
1425	* Restore the real CPU state and deal with high priority post
1426	* execution FFs before doing anything else.
1427	*/
1428	rc = CPUMRawLeave(pVCpu, rc);
1429	VMCPU_FF_CLEAR(pVCpu, VMCPU_FF_RESUME_GUEST_MASK);
1430	if ( VM_FF_IS_PENDING(pVM, VM_FF_HIGH_PRIORITY_POST_MASK)
1431	\|\| VMCPU_FF_IS_PENDING(pVCpu, VMCPU_FF_HIGH_PRIORITY_POST_MASK))
1432	rc = emR3HighPriorityPostForcedActions(pVM, pVCpu, rc);
1433
1434	#ifdef VBOX_STRICT
1435	/*
1436	* Assert TSS consistency & rc vs patch code.
1437	*/
1438	if ( !VMCPU_FF_IS_PENDING(pVCpu, VMCPU_FF_SELM_SYNC_TSS \| VMCPU_FF_SELM_SYNC_GDT) /* GDT implies TSS at the moment. */
1439	&& EMIsRawRing0Enabled(pVM))
1440	SELMR3CheckTSS(pVM);
1441	switch (rc)
1442	{
1443	case VINF_SUCCESS:
1444	case VINF_EM_RAW_INTERRUPT:
1445	case VINF_PATM_PATCH_TRAP_PF:
1446	case VINF_PATM_PATCH_TRAP_GP:
1447	case VINF_PATM_PATCH_INT3:
1448	case VINF_PATM_CHECK_PATCH_PAGE:
1449	case VINF_EM_RAW_EXCEPTION_PRIVILEGED:
1450	case VINF_EM_RAW_GUEST_TRAP:
1451	case VINF_EM_RESCHEDULE_RAW:
1452	break;
1453
1454	default:
1455	if (PATMIsPatchGCAddr(pVM, pCtx->eip) && !(pCtx->eflags.u32 & X86_EFL_TF))
1456	LogIt(0, LOG_GROUP_PATM, ("Patch code interrupted at %RRv for reason %Rrc\n", (RTRCPTR)CPUMGetGuestEIP(pVCpu), rc));
1457	break;
1458	}
1459	/*
1460	* Let's go paranoid!
1461	*/
1462	if ( !VMCPU_FF_IS_PENDING(pVCpu, VMCPU_FF_PGM_SYNC_CR3 \| VMCPU_FF_PGM_SYNC_CR3_NON_GLOBAL)
1463	&& PGMMapHasConflicts(pVM))
1464	{
1465	PGMMapCheck(pVM);
1466	AssertMsgFailed(("We should not get conflicts any longer!!! rc=%Rrc\n", rc));
1467	return VERR_EM_UNEXPECTED_MAPPING_CONFLICT;
1468	}
1469	#endif /* VBOX_STRICT */
1470
1471	/*
1472	* Process the returned status code.
1473	*/
1474	if (rc >= VINF_EM_FIRST && rc <= VINF_EM_LAST)
1475	{
1476	STAM_PROFILE_ADV_STOP(&pVCpu->em.s.StatRAWTail, d);
1477	break;
1478	}
1479	rc = emR3RawHandleRC(pVM, pVCpu, pCtx, rc);
1480	if (rc != VINF_SUCCESS)
1481	{
1482	rc = emR3RawUpdateForceFlag(pVM, pVCpu, pCtx, rc);
1483	if (rc != VINF_SUCCESS)
1484	{
1485	STAM_PROFILE_ADV_STOP(&pVCpu->em.s.StatRAWTail, d);
1486	break;
1487	}
1488	}
1489
1490	/*
1491	* Check and execute forced actions.
1492	*/
1493	#ifdef VBOX_HIGH_RES_TIMERS_HACK
1494	TMTimerPollVoid(pVM, pVCpu);
1495	#endif
1496	STAM_PROFILE_ADV_STOP(&pVCpu->em.s.StatRAWTail, d);
1497	if ( VM_FF_IS_PENDING(pVM, ~VM_FF_HIGH_PRIORITY_PRE_RAW_MASK \| VM_FF_PGM_NO_MEMORY)
1498	\|\| VMCPU_FF_IS_PENDING(pVCpu, ~VMCPU_FF_HIGH_PRIORITY_PRE_RAW_MASK))
1499	{
1500	Assert(pCtx->eflags.Bits.u1VM \|\| (pCtx->ss.Sel & X86_SEL_RPL) != (EMIsRawRing1Enabled(pVM) ? 2 : 1));
1501
1502	STAM_REL_PROFILE_ADV_SUSPEND(&pVCpu->em.s.StatRAWTotal, a);
1503	rc = emR3ForcedActions(pVM, pVCpu, rc);
1504	VBOXVMM_EM_FF_ALL_RET(pVCpu, rc);
1505	STAM_REL_PROFILE_ADV_RESUME(&pVCpu->em.s.StatRAWTotal, a);
1506	if ( rc != VINF_SUCCESS
1507	&& rc != VINF_EM_RESCHEDULE_RAW)
1508	{
1509	rc = emR3RawUpdateForceFlag(pVM, pVCpu, pCtx, rc);
1510	if (rc != VINF_SUCCESS)
1511	{
1512	*pfFFDone = true;
1513	break;
1514	}
1515	}
1516	}
1517	}
1518
1519	/*
1520	* Return to outer loop.
1521	*/
1522	#if defined(LOG_ENABLED) && defined(DEBUG)
1523	RTLogFlush(NULL);
1524	#endif
1525	STAM_REL_PROFILE_ADV_STOP(&pVCpu->em.s.StatRAWTotal, a);
1526	return rc;
1527	}
1528

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source: vbox/trunk/src/VBox/VMM/VMMR3/EMRaw.cpp@ 58126

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