EM.cpp@ 18288

Last change on this file since 18288 was 18288, checked in by vboxsync, 16 years ago
EM.cpp: Redo emR3RawForcedActions after CSAMR3CheckCodeEx if it becomes necessary, it may register virtual access handlers which require a SyncCR3. More strictness.
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1	/* $Id: EM.cpp 18288 2009-03-26 05:00:02Z vboxsync $ */
2	/** @file
3	* EM - Execution Monitor / Manager.
4	*/
5
6	/*
7	* Copyright (C) 2006-2007 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/patm.h>
48	#include <VBox/csam.h>
49	#include <VBox/selm.h>
50	#include <VBox/trpm.h>
51	#include <VBox/iom.h>
52	#include <VBox/dbgf.h>
53	#include <VBox/pgm.h>
54	#include <VBox/rem.h>
55	#include <VBox/tm.h>
56	#include <VBox/mm.h>
57	#include <VBox/ssm.h>
58	#include <VBox/pdmapi.h>
59	#include <VBox/pdmcritsect.h>
60	#include <VBox/pdmqueue.h>
61	#include <VBox/hwaccm.h>
62	#include <VBox/patm.h>
63	#include "EMInternal.h"
64	#include <VBox/vm.h>
65	#include <VBox/cpumdis.h>
66	#include <VBox/dis.h>
67	#include <VBox/disopcode.h>
68	#include <VBox/dbgf.h>
69
70	#include <VBox/log.h>
71	#include <iprt/thread.h>
72	#include <iprt/assert.h>
73	#include <iprt/asm.h>
74	#include <iprt/semaphore.h>
75	#include <iprt/string.h>
76	#include <iprt/avl.h>
77	#include <iprt/stream.h>
78	#include <VBox/param.h>
79	#include <VBox/err.h>
80
81
82	/*******************************************************************************
83	* Defined Constants And Macros *
84	*******************************************************************************/
85	#if 0 /* Disabled till after 2.1.0 when we've time to test it. */
86	#define EM_NOTIFY_HWACCM
87	#endif
88
89
90	/*******************************************************************************
91	* Internal Functions *
92	*******************************************************************************/
93	static DECLCALLBACK(int) emR3Save(PVM pVM, PSSMHANDLE pSSM);
94	static DECLCALLBACK(int) emR3Load(PVM pVM, PSSMHANDLE pSSM, uint32_t u32Version);
95	static int emR3Debug(PVM pVM, int rc);
96	static int emR3RemStep(PVM pVM);
97	static int emR3RemExecute(PVM pVM, bool *pfFFDone);
98	static int emR3RawResumeHyper(PVM pVM);
99	static int emR3RawStep(PVM pVM);
100	DECLINLINE(int) emR3RawHandleRC(PVM pVM, PCPUMCTX pCtx, int rc);
101	DECLINLINE(int) emR3RawUpdateForceFlag(PVM pVM, PCPUMCTX pCtx, int rc);
102	static int emR3RawForcedActions(PVM pVM, PCPUMCTX pCtx);
103	static int emR3RawExecute(PVM pVM, bool *pfFFDone);
104	DECLINLINE(int) emR3RawExecuteInstruction(PVM pVM, const char *pszPrefix, int rcGC = VINF_SUCCESS);
105	static int emR3HighPriorityPostForcedActions(PVM pVM, int rc);
106	static int emR3ForcedActions(PVM pVM, int rc);
107	static int emR3RawGuestTrap(PVM pVM);
108	static int emR3PatchTrap(PVM pVM, PCPUMCTX pCtx, int gcret);
109	static int emR3SingleStepExecRem(PVM pVM, uint32_t cIterations);
110	static EMSTATE emR3Reschedule(PVM pVM, PCPUMCTX pCtx);
111
112	/**
113	* Initializes the EM.
114	*
115	* @returns VBox status code.
116	* @param pVM The VM to operate on.
117	*/
118	VMMR3DECL(int) EMR3Init(PVM pVM)
119	{
120	LogFlow(("EMR3Init\n"));
121	/*
122	* Assert alignment and sizes.
123	*/
124	AssertRelease(!(RT_OFFSETOF(VM, em.s) & 31));
125	AssertRelease(sizeof(pVM->em.s) <= sizeof(pVM->em.padding));
126	AssertReleaseMsg(sizeof(pVM->em.s.u.FatalLongJump) <= sizeof(pVM->em.s.u.achPaddingFatalLongJump),
127	("%d bytes, padding %d\n", sizeof(pVM->em.s.u.FatalLongJump), sizeof(pVM->em.s.u.achPaddingFatalLongJump)));
128
129	/*
130	* Init the structure.
131	*/
132	pVM->em.s.offVM = RT_OFFSETOF(VM, em.s);
133	int rc = CFGMR3QueryBool(CFGMR3GetRoot(pVM), "RawR3Enabled", &pVM->fRawR3Enabled);
134	if (RT_FAILURE(rc))
135	pVM->fRawR3Enabled = true;
136	rc = CFGMR3QueryBool(CFGMR3GetRoot(pVM), "RawR0Enabled", &pVM->fRawR0Enabled);
137	if (RT_FAILURE(rc))
138	pVM->fRawR0Enabled = true;
139	Log(("EMR3Init: fRawR3Enabled=%d fRawR0Enabled=%d\n", pVM->fRawR3Enabled, pVM->fRawR0Enabled));
140	pVM->em.s.enmState = EMSTATE_NONE;
141	pVM->em.s.fForceRAW = false;
142
143	pVM->em.s.pCtx = CPUMQueryGuestCtxPtr(pVM);
144	pVM->em.s.pPatmGCState = PATMR3QueryGCStateHC(pVM);
145	AssertMsg(pVM->em.s.pPatmGCState, ("PATMR3QueryGCStateHC failed!\n"));
146
147	/*
148	* Saved state.
149	*/
150	rc = SSMR3RegisterInternal(pVM, "em", 0, EM_SAVED_STATE_VERSION, 16,
151	NULL, emR3Save, NULL,
152	NULL, emR3Load, NULL);
153	if (RT_FAILURE(rc))
154	return rc;
155
156	/*
157	* Statistics.
158	*/
159	#ifdef VBOX_WITH_STATISTICS
160	PEMSTATS pStats;
161	rc = MMHyperAlloc(pVM, sizeof(pStats), 0, MM_TAG_EM, (void *)&pStats);
162	if (RT_FAILURE(rc))
163	return rc;
164	pVM->em.s.pStatsR3 = pStats;
165	pVM->em.s.pStatsR0 = MMHyperR3ToR0(pVM, pStats);
166	pVM->em.s.pStatsRC = MMHyperR3ToRC(pVM, pStats);
167
168	STAM_REG(pVM, &pStats->StatRZEmulate, STAMTYPE_PROFILE, "/EM/RZ/Interpret", STAMUNIT_TICKS_PER_CALL, "Profiling of EMInterpretInstruction.");
169	STAM_REG(pVM, &pStats->StatR3Emulate, STAMTYPE_PROFILE, "/EM/R3/Interpret", STAMUNIT_TICKS_PER_CALL, "Profiling of EMInterpretInstruction.");
170
171	STAM_REG(pVM, &pStats->StatRZInterpretSucceeded, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Success", STAMUNIT_OCCURENCES, "The number of times an instruction was successfully interpreted.");
172	STAM_REG(pVM, &pStats->StatR3InterpretSucceeded, STAMTYPE_COUNTER, "/EM/R3/Interpret/Success", STAMUNIT_OCCURENCES, "The number of times an instruction was successfully interpreted.");
173
174	STAM_REG_USED(pVM, &pStats->StatRZAnd, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Success/And", STAMUNIT_OCCURENCES, "The number of times AND was successfully interpreted.");
175	STAM_REG_USED(pVM, &pStats->StatR3And, STAMTYPE_COUNTER, "/EM/R3/Interpret/Success/And", STAMUNIT_OCCURENCES, "The number of times AND was successfully interpreted.");
176	STAM_REG_USED(pVM, &pStats->StatRZAdd, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Success/Add", STAMUNIT_OCCURENCES, "The number of times ADD was successfully interpreted.");
177	STAM_REG_USED(pVM, &pStats->StatR3Add, STAMTYPE_COUNTER, "/EM/R3/Interpret/Success/Add", STAMUNIT_OCCURENCES, "The number of times ADD was successfully interpreted.");
178	STAM_REG_USED(pVM, &pStats->StatRZAdc, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Success/Adc", STAMUNIT_OCCURENCES, "The number of times ADC was successfully interpreted.");
179	STAM_REG_USED(pVM, &pStats->StatR3Adc, STAMTYPE_COUNTER, "/EM/R3/Interpret/Success/Adc", STAMUNIT_OCCURENCES, "The number of times ADC was successfully interpreted.");
180	STAM_REG_USED(pVM, &pStats->StatRZSub, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Success/Sub", STAMUNIT_OCCURENCES, "The number of times SUB was successfully interpreted.");
181	STAM_REG_USED(pVM, &pStats->StatR3Sub, STAMTYPE_COUNTER, "/EM/R3/Interpret/Success/Sub", STAMUNIT_OCCURENCES, "The number of times SUB was successfully interpreted.");
182	STAM_REG_USED(pVM, &pStats->StatRZCpuId, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Success/CpuId", STAMUNIT_OCCURENCES, "The number of times CPUID was successfully interpreted.");
183	STAM_REG_USED(pVM, &pStats->StatR3CpuId, STAMTYPE_COUNTER, "/EM/R3/Interpret/Success/CpuId", STAMUNIT_OCCURENCES, "The number of times CPUID was successfully interpreted.");
184	STAM_REG_USED(pVM, &pStats->StatRZDec, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Success/Dec", STAMUNIT_OCCURENCES, "The number of times DEC was successfully interpreted.");
185	STAM_REG_USED(pVM, &pStats->StatR3Dec, STAMTYPE_COUNTER, "/EM/R3/Interpret/Success/Dec", STAMUNIT_OCCURENCES, "The number of times DEC was successfully interpreted.");
186	STAM_REG_USED(pVM, &pStats->StatRZHlt, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Success/Hlt", STAMUNIT_OCCURENCES, "The number of times HLT was successfully interpreted.");
187	STAM_REG_USED(pVM, &pStats->StatR3Hlt, STAMTYPE_COUNTER, "/EM/R3/Interpret/Success/Hlt", STAMUNIT_OCCURENCES, "The number of times HLT was successfully interpreted.");
188	STAM_REG_USED(pVM, &pStats->StatRZInc, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Success/Inc", STAMUNIT_OCCURENCES, "The number of times INC was successfully interpreted.");
189	STAM_REG_USED(pVM, &pStats->StatR3Inc, STAMTYPE_COUNTER, "/EM/R3/Interpret/Success/Inc", STAMUNIT_OCCURENCES, "The number of times INC was successfully interpreted.");
190	STAM_REG_USED(pVM, &pStats->StatRZInvlPg, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Success/Invlpg", STAMUNIT_OCCURENCES, "The number of times INVLPG was successfully interpreted.");
191	STAM_REG_USED(pVM, &pStats->StatR3InvlPg, STAMTYPE_COUNTER, "/EM/R3/Interpret/Success/Invlpg", STAMUNIT_OCCURENCES, "The number of times INVLPG was successfully interpreted.");
192	STAM_REG_USED(pVM, &pStats->StatRZIret, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Success/Iret", STAMUNIT_OCCURENCES, "The number of times IRET was successfully interpreted.");
193	STAM_REG_USED(pVM, &pStats->StatR3Iret, STAMTYPE_COUNTER, "/EM/R3/Interpret/Success/Iret", STAMUNIT_OCCURENCES, "The number of times IRET was successfully interpreted.");
194	STAM_REG_USED(pVM, &pStats->StatRZLLdt, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Success/LLdt", STAMUNIT_OCCURENCES, "The number of times LLDT was successfully interpreted.");
195	STAM_REG_USED(pVM, &pStats->StatR3LLdt, STAMTYPE_COUNTER, "/EM/R3/Interpret/Success/LLdt", STAMUNIT_OCCURENCES, "The number of times LLDT was successfully interpreted.");
196	STAM_REG_USED(pVM, &pStats->StatRZLIdt, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Success/LIdt", STAMUNIT_OCCURENCES, "The number of times LIDT was successfully interpreted.");
197	STAM_REG_USED(pVM, &pStats->StatR3LIdt, STAMTYPE_COUNTER, "/EM/R3/Interpret/Success/LIdt", STAMUNIT_OCCURENCES, "The number of times LIDT was successfully interpreted.");
198	STAM_REG_USED(pVM, &pStats->StatRZLGdt, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Success/LGdt", STAMUNIT_OCCURENCES, "The number of times LGDT was successfully interpreted.");
199	STAM_REG_USED(pVM, &pStats->StatR3LGdt, STAMTYPE_COUNTER, "/EM/R3/Interpret/Success/LGdt", STAMUNIT_OCCURENCES, "The number of times LGDT was successfully interpreted.");
200	STAM_REG_USED(pVM, &pStats->StatRZMov, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Success/Mov", STAMUNIT_OCCURENCES, "The number of times MOV was successfully interpreted.");
201	STAM_REG_USED(pVM, &pStats->StatR3Mov, STAMTYPE_COUNTER, "/EM/R3/Interpret/Success/Mov", STAMUNIT_OCCURENCES, "The number of times MOV was successfully interpreted.");
202	STAM_REG_USED(pVM, &pStats->StatRZMovCRx, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Success/MovCRx", STAMUNIT_OCCURENCES, "The number of times MOV CRx was successfully interpreted.");
203	STAM_REG_USED(pVM, &pStats->StatR3MovCRx, STAMTYPE_COUNTER, "/EM/R3/Interpret/Success/MovCRx", STAMUNIT_OCCURENCES, "The number of times MOV CRx was successfully interpreted.");
204	STAM_REG_USED(pVM, &pStats->StatRZMovDRx, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Success/MovDRx", STAMUNIT_OCCURENCES, "The number of times MOV DRx was successfully interpreted.");
205	STAM_REG_USED(pVM, &pStats->StatR3MovDRx, STAMTYPE_COUNTER, "/EM/R3/Interpret/Success/MovDRx", STAMUNIT_OCCURENCES, "The number of times MOV DRx was successfully interpreted.");
206	STAM_REG_USED(pVM, &pStats->StatRZOr, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Success/Or", STAMUNIT_OCCURENCES, "The number of times OR was successfully interpreted.");
207	STAM_REG_USED(pVM, &pStats->StatR3Or, STAMTYPE_COUNTER, "/EM/R3/Interpret/Success/Or", STAMUNIT_OCCURENCES, "The number of times OR was successfully interpreted.");
208	STAM_REG_USED(pVM, &pStats->StatRZPop, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Success/Pop", STAMUNIT_OCCURENCES, "The number of times POP was successfully interpreted.");
209	STAM_REG_USED(pVM, &pStats->StatR3Pop, STAMTYPE_COUNTER, "/EM/R3/Interpret/Success/Pop", STAMUNIT_OCCURENCES, "The number of times POP was successfully interpreted.");
210	STAM_REG_USED(pVM, &pStats->StatRZRdtsc, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Success/Rdtsc", STAMUNIT_OCCURENCES, "The number of times RDTSC was successfully interpreted.");
211	STAM_REG_USED(pVM, &pStats->StatR3Rdtsc, STAMTYPE_COUNTER, "/EM/R3/Interpret/Success/Rdtsc", STAMUNIT_OCCURENCES, "The number of times RDTSC was successfully interpreted.");
212	STAM_REG_USED(pVM, &pStats->StatRZSti, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Success/Sti", STAMUNIT_OCCURENCES, "The number of times STI was successfully interpreted.");
213	STAM_REG_USED(pVM, &pStats->StatR3Sti, STAMTYPE_COUNTER, "/EM/R3/Interpret/Success/Sti", STAMUNIT_OCCURENCES, "The number of times STI was successfully interpreted.");
214	STAM_REG_USED(pVM, &pStats->StatRZXchg, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Success/Xchg", STAMUNIT_OCCURENCES, "The number of times XCHG was successfully interpreted.");
215	STAM_REG_USED(pVM, &pStats->StatR3Xchg, STAMTYPE_COUNTER, "/EM/R3/Interpret/Success/Xchg", STAMUNIT_OCCURENCES, "The number of times XCHG was successfully interpreted.");
216	STAM_REG_USED(pVM, &pStats->StatRZXor, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Success/Xor", STAMUNIT_OCCURENCES, "The number of times XOR was successfully interpreted.");
217	STAM_REG_USED(pVM, &pStats->StatR3Xor, STAMTYPE_COUNTER, "/EM/R3/Interpret/Success/Xor", STAMUNIT_OCCURENCES, "The number of times XOR was successfully interpreted.");
218	STAM_REG_USED(pVM, &pStats->StatRZMonitor, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Success/Monitor", STAMUNIT_OCCURENCES, "The number of times MONITOR was successfully interpreted.");
219	STAM_REG_USED(pVM, &pStats->StatR3Monitor, STAMTYPE_COUNTER, "/EM/R3/Interpret/Success/Monitor", STAMUNIT_OCCURENCES, "The number of times MONITOR was successfully interpreted.");
220	STAM_REG_USED(pVM, &pStats->StatRZMWait, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Success/MWait", STAMUNIT_OCCURENCES, "The number of times MWAIT was successfully interpreted.");
221	STAM_REG_USED(pVM, &pStats->StatR3MWait, STAMTYPE_COUNTER, "/EM/R3/Interpret/Success/MWait", STAMUNIT_OCCURENCES, "The number of times MWAIT was successfully interpreted.");
222	STAM_REG_USED(pVM, &pStats->StatRZBtr, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Success/Btr", STAMUNIT_OCCURENCES, "The number of times BTR was successfully interpreted.");
223	STAM_REG_USED(pVM, &pStats->StatR3Btr, STAMTYPE_COUNTER, "/EM/R3/Interpret/Success/Btr", STAMUNIT_OCCURENCES, "The number of times BTR was successfully interpreted.");
224	STAM_REG_USED(pVM, &pStats->StatRZBts, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Success/Bts", STAMUNIT_OCCURENCES, "The number of times BTS was successfully interpreted.");
225	STAM_REG_USED(pVM, &pStats->StatR3Bts, STAMTYPE_COUNTER, "/EM/R3/Interpret/Success/Bts", STAMUNIT_OCCURENCES, "The number of times BTS was successfully interpreted.");
226	STAM_REG_USED(pVM, &pStats->StatRZBtc, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Success/Btc", STAMUNIT_OCCURENCES, "The number of times BTC was successfully interpreted.");
227	STAM_REG_USED(pVM, &pStats->StatR3Btc, STAMTYPE_COUNTER, "/EM/R3/Interpret/Success/Btc", STAMUNIT_OCCURENCES, "The number of times BTC was successfully interpreted.");
228	STAM_REG_USED(pVM, &pStats->StatRZCmpXchg, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Success/CmpXchg", STAMUNIT_OCCURENCES, "The number of times CMPXCHG was successfully interpreted.");
229	STAM_REG_USED(pVM, &pStats->StatR3CmpXchg, STAMTYPE_COUNTER, "/EM/R3/Interpret/Success/CmpXchg", STAMUNIT_OCCURENCES, "The number of times CMPXCHG was successfully interpreted.");
230	STAM_REG_USED(pVM, &pStats->StatRZCmpXchg8b, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Success/CmpXchg8b", STAMUNIT_OCCURENCES, "The number of times CMPXCHG8B was successfully interpreted.");
231	STAM_REG_USED(pVM, &pStats->StatR3CmpXchg8b, STAMTYPE_COUNTER, "/EM/R3/Interpret/Success/CmpXchg8b", STAMUNIT_OCCURENCES, "The number of times CMPXCHG8B was successfully interpreted.");
232	STAM_REG_USED(pVM, &pStats->StatRZXAdd, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Success/XAdd", STAMUNIT_OCCURENCES, "The number of times XADD was successfully interpreted.");
233	STAM_REG_USED(pVM, &pStats->StatR3XAdd, STAMTYPE_COUNTER, "/EM/R3/Interpret/Success/XAdd", STAMUNIT_OCCURENCES, "The number of times XADD was successfully interpreted.");
234	STAM_REG_USED(pVM, &pStats->StatR3Rdmsr, STAMTYPE_COUNTER, "/EM/R3/Interpret/Success/Rdmsr", STAMUNIT_OCCURENCES, "The number of times RDMSR was successfully interpreted.");
235	STAM_REG_USED(pVM, &pStats->StatRZRdmsr, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Success/Rdmsr", STAMUNIT_OCCURENCES, "The number of times RDMSR was successfully interpreted.");
236	STAM_REG_USED(pVM, &pStats->StatR3Wrmsr, STAMTYPE_COUNTER, "/EM/R3/Interpret/Success/Wrmsr", STAMUNIT_OCCURENCES, "The number of times WRMSR was successfully interpreted.");
237	STAM_REG_USED(pVM, &pStats->StatRZWrmsr, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Success/Wrmsr", STAMUNIT_OCCURENCES, "The number of times WRMSR was successfully interpreted.");
238	STAM_REG_USED(pVM, &pStats->StatR3StosWD, STAMTYPE_COUNTER, "/EM/R3/Interpret/Success/Stoswd", STAMUNIT_OCCURENCES, "The number of times STOSWD was successfully interpreted.");
239	STAM_REG_USED(pVM, &pStats->StatRZStosWD, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Success/Stoswd", STAMUNIT_OCCURENCES, "The number of times STOSWD was successfully interpreted.");
240	STAM_REG_USED(pVM, &pStats->StatRZWbInvd, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Success/WbInvd", STAMUNIT_OCCURENCES, "The number of times WBINVD was successfully interpreted.");
241	STAM_REG_USED(pVM, &pStats->StatR3WbInvd, STAMTYPE_COUNTER, "/EM/R3/Interpret/Success/WbInvd", STAMUNIT_OCCURENCES, "The number of times WBINVD was successfully interpreted.");
242	STAM_REG_USED(pVM, &pStats->StatRZLmsw, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Success/Lmsw", STAMUNIT_OCCURENCES, "The number of times LMSW was successfully interpreted.");
243	STAM_REG_USED(pVM, &pStats->StatR3Lmsw, STAMTYPE_COUNTER, "/EM/R3/Interpret/Success/Lmsw", STAMUNIT_OCCURENCES, "The number of times LMSW was successfully interpreted.");
244
245	STAM_REG(pVM, &pStats->StatRZInterpretFailed, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Failed", STAMUNIT_OCCURENCES, "The number of times an instruction was not interpreted.");
246	STAM_REG(pVM, &pStats->StatR3InterpretFailed, STAMTYPE_COUNTER, "/EM/R3/Interpret/Failed", STAMUNIT_OCCURENCES, "The number of times an instruction was not interpreted.");
247
248	STAM_REG_USED(pVM, &pStats->StatRZFailedAnd, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Failed/And", STAMUNIT_OCCURENCES, "The number of times AND was not interpreted.");
249	STAM_REG_USED(pVM, &pStats->StatR3FailedAnd, STAMTYPE_COUNTER, "/EM/R3/Interpret/Failed/And", STAMUNIT_OCCURENCES, "The number of times AND was not interpreted.");
250	STAM_REG_USED(pVM, &pStats->StatRZFailedCpuId, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Failed/CpuId", STAMUNIT_OCCURENCES, "The number of times CPUID was not interpreted.");
251	STAM_REG_USED(pVM, &pStats->StatR3FailedCpuId, STAMTYPE_COUNTER, "/EM/R3/Interpret/Failed/CpuId", STAMUNIT_OCCURENCES, "The number of times CPUID was not interpreted.");
252	STAM_REG_USED(pVM, &pStats->StatRZFailedDec, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Failed/Dec", STAMUNIT_OCCURENCES, "The number of times DEC was not interpreted.");
253	STAM_REG_USED(pVM, &pStats->StatR3FailedDec, STAMTYPE_COUNTER, "/EM/R3/Interpret/Failed/Dec", STAMUNIT_OCCURENCES, "The number of times DEC was not interpreted.");
254	STAM_REG_USED(pVM, &pStats->StatRZFailedHlt, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Failed/Hlt", STAMUNIT_OCCURENCES, "The number of times HLT was not interpreted.");
255	STAM_REG_USED(pVM, &pStats->StatR3FailedHlt, STAMTYPE_COUNTER, "/EM/R3/Interpret/Failed/Hlt", STAMUNIT_OCCURENCES, "The number of times HLT was not interpreted.");
256	STAM_REG_USED(pVM, &pStats->StatRZFailedInc, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Failed/Inc", STAMUNIT_OCCURENCES, "The number of times INC was not interpreted.");
257	STAM_REG_USED(pVM, &pStats->StatR3FailedInc, STAMTYPE_COUNTER, "/EM/R3/Interpret/Failed/Inc", STAMUNIT_OCCURENCES, "The number of times INC was not interpreted.");
258	STAM_REG_USED(pVM, &pStats->StatRZFailedInvlPg, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Failed/InvlPg", STAMUNIT_OCCURENCES, "The number of times INVLPG was not interpreted.");
259	STAM_REG_USED(pVM, &pStats->StatR3FailedInvlPg, STAMTYPE_COUNTER, "/EM/R3/Interpret/Failed/InvlPg", STAMUNIT_OCCURENCES, "The number of times INVLPG was not interpreted.");
260	STAM_REG_USED(pVM, &pStats->StatRZFailedIret, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Failed/Iret", STAMUNIT_OCCURENCES, "The number of times IRET was not interpreted.");
261	STAM_REG_USED(pVM, &pStats->StatR3FailedIret, STAMTYPE_COUNTER, "/EM/R3/Interpret/Failed/Iret", STAMUNIT_OCCURENCES, "The number of times IRET was not interpreted.");
262	STAM_REG_USED(pVM, &pStats->StatRZFailedLLdt, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Failed/LLdt", STAMUNIT_OCCURENCES, "The number of times LLDT was not interpreted.");
263	STAM_REG_USED(pVM, &pStats->StatR3FailedLLdt, STAMTYPE_COUNTER, "/EM/R3/Interpret/Failed/LLdt", STAMUNIT_OCCURENCES, "The number of times LLDT was not interpreted.");
264	STAM_REG_USED(pVM, &pStats->StatRZFailedLIdt, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Failed/LIdt", STAMUNIT_OCCURENCES, "The number of times LIDT was not interpreted.");
265	STAM_REG_USED(pVM, &pStats->StatR3FailedLIdt, STAMTYPE_COUNTER, "/EM/R3/Interpret/Failed/LIdt", STAMUNIT_OCCURENCES, "The number of times LIDT was not interpreted.");
266	STAM_REG_USED(pVM, &pStats->StatRZFailedLGdt, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Failed/LGdt", STAMUNIT_OCCURENCES, "The number of times LGDT was not interpreted.");
267	STAM_REG_USED(pVM, &pStats->StatR3FailedLGdt, STAMTYPE_COUNTER, "/EM/R3/Interpret/Failed/LGdt", STAMUNIT_OCCURENCES, "The number of times LGDT was not interpreted.");
268	STAM_REG_USED(pVM, &pStats->StatRZFailedMov, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Failed/Mov", STAMUNIT_OCCURENCES, "The number of times MOV was not interpreted.");
269	STAM_REG_USED(pVM, &pStats->StatR3FailedMov, STAMTYPE_COUNTER, "/EM/R3/Interpret/Failed/Mov", STAMUNIT_OCCURENCES, "The number of times MOV was not interpreted.");
270	STAM_REG_USED(pVM, &pStats->StatRZFailedMovCRx, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Failed/MovCRx", STAMUNIT_OCCURENCES, "The number of times MOV CRx was not interpreted.");
271	STAM_REG_USED(pVM, &pStats->StatR3FailedMovCRx, STAMTYPE_COUNTER, "/EM/R3/Interpret/Failed/MovCRx", STAMUNIT_OCCURENCES, "The number of times MOV CRx was not interpreted.");
272	STAM_REG_USED(pVM, &pStats->StatRZFailedMovDRx, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Failed/MovDRx", STAMUNIT_OCCURENCES, "The number of times MOV DRx was not interpreted.");
273	STAM_REG_USED(pVM, &pStats->StatR3FailedMovDRx, STAMTYPE_COUNTER, "/EM/R3/Interpret/Failed/MovDRx", STAMUNIT_OCCURENCES, "The number of times MOV DRx was not interpreted.");
274	STAM_REG_USED(pVM, &pStats->StatRZFailedOr, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Failed/Or", STAMUNIT_OCCURENCES, "The number of times OR was not interpreted.");
275	STAM_REG_USED(pVM, &pStats->StatR3FailedOr, STAMTYPE_COUNTER, "/EM/R3/Interpret/Failed/Or", STAMUNIT_OCCURENCES, "The number of times OR was not interpreted.");
276	STAM_REG_USED(pVM, &pStats->StatRZFailedPop, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Failed/Pop", STAMUNIT_OCCURENCES, "The number of times POP was not interpreted.");
277	STAM_REG_USED(pVM, &pStats->StatR3FailedPop, STAMTYPE_COUNTER, "/EM/R3/Interpret/Failed/Pop", STAMUNIT_OCCURENCES, "The number of times POP was not interpreted.");
278	STAM_REG_USED(pVM, &pStats->StatRZFailedSti, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Failed/Sti", STAMUNIT_OCCURENCES, "The number of times STI was not interpreted.");
279	STAM_REG_USED(pVM, &pStats->StatR3FailedSti, STAMTYPE_COUNTER, "/EM/R3/Interpret/Failed/Sti", STAMUNIT_OCCURENCES, "The number of times STI was not interpreted.");
280	STAM_REG_USED(pVM, &pStats->StatRZFailedXchg, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Failed/Xchg", STAMUNIT_OCCURENCES, "The number of times XCHG was not interpreted.");
281	STAM_REG_USED(pVM, &pStats->StatR3FailedXchg, STAMTYPE_COUNTER, "/EM/R3/Interpret/Failed/Xchg", STAMUNIT_OCCURENCES, "The number of times XCHG was not interpreted.");
282	STAM_REG_USED(pVM, &pStats->StatRZFailedXor, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Failed/Xor", STAMUNIT_OCCURENCES, "The number of times XOR was not interpreted.");
283	STAM_REG_USED(pVM, &pStats->StatR3FailedXor, STAMTYPE_COUNTER, "/EM/R3/Interpret/Failed/Xor", STAMUNIT_OCCURENCES, "The number of times XOR was not interpreted.");
284	STAM_REG_USED(pVM, &pStats->StatRZFailedMonitor, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Failed/Monitor", STAMUNIT_OCCURENCES, "The number of times MONITOR was not interpreted.");
285	STAM_REG_USED(pVM, &pStats->StatR3FailedMonitor, STAMTYPE_COUNTER, "/EM/R3/Interpret/Failed/Monitor", STAMUNIT_OCCURENCES, "The number of times MONITOR was not interpreted.");
286	STAM_REG_USED(pVM, &pStats->StatRZFailedMWait, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Failed/MWait", STAMUNIT_OCCURENCES, "The number of times MONITOR was not interpreted.");
287	STAM_REG_USED(pVM, &pStats->StatR3FailedMWait, STAMTYPE_COUNTER, "/EM/R3/Interpret/Failed/MWait", STAMUNIT_OCCURENCES, "The number of times MONITOR was not interpreted.");
288	STAM_REG_USED(pVM, &pStats->StatRZFailedRdtsc, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Failed/Rdtsc", STAMUNIT_OCCURENCES, "The number of times RDTSC was not interpreted.");
289	STAM_REG_USED(pVM, &pStats->StatR3FailedRdtsc, STAMTYPE_COUNTER, "/EM/R3/Interpret/Failed/Rdtsc", STAMUNIT_OCCURENCES, "The number of times RDTSC was not interpreted.");
290	STAM_REG_USED(pVM, &pStats->StatRZFailedRdmsr, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Failed/Rdmsr", STAMUNIT_OCCURENCES, "The number of times RDMSR was not interpreted.");
291	STAM_REG_USED(pVM, &pStats->StatR3FailedRdmsr, STAMTYPE_COUNTER, "/EM/R3/Interpret/Failed/Rdmsr", STAMUNIT_OCCURENCES, "The number of times RDMSR was not interpreted.");
292	STAM_REG_USED(pVM, &pStats->StatRZFailedWrmsr, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Failed/Wrmsr", STAMUNIT_OCCURENCES, "The number of times WRMSR was not interpreted.");
293	STAM_REG_USED(pVM, &pStats->StatR3FailedWrmsr, STAMTYPE_COUNTER, "/EM/R3/Interpret/Failed/Wrmsr", STAMUNIT_OCCURENCES, "The number of times WRMSR was not interpreted.");
294	STAM_REG_USED(pVM, &pStats->StatRZFailedLmsw, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Failed/Lmsw", STAMUNIT_OCCURENCES, "The number of times LMSW was not interpreted.");
295	STAM_REG_USED(pVM, &pStats->StatR3FailedLmsw, STAMTYPE_COUNTER, "/EM/R3/Interpret/Failed/Lmsw", STAMUNIT_OCCURENCES, "The number of times LMSW was not interpreted.");
296
297	STAM_REG_USED(pVM, &pStats->StatRZFailedMisc, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Failed/Misc", STAMUNIT_OCCURENCES, "The number of times some misc instruction was encountered.");
298	STAM_REG_USED(pVM, &pStats->StatR3FailedMisc, STAMTYPE_COUNTER, "/EM/R3/Interpret/Failed/Misc", STAMUNIT_OCCURENCES, "The number of times some misc instruction was encountered.");
299	STAM_REG_USED(pVM, &pStats->StatRZFailedAdd, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Failed/Add", STAMUNIT_OCCURENCES, "The number of times ADD was not interpreted.");
300	STAM_REG_USED(pVM, &pStats->StatR3FailedAdd, STAMTYPE_COUNTER, "/EM/R3/Interpret/Failed/Add", STAMUNIT_OCCURENCES, "The number of times ADD was not interpreted.");
301	STAM_REG_USED(pVM, &pStats->StatRZFailedAdc, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Failed/Adc", STAMUNIT_OCCURENCES, "The number of times ADC was not interpreted.");
302	STAM_REG_USED(pVM, &pStats->StatR3FailedAdc, STAMTYPE_COUNTER, "/EM/R3/Interpret/Failed/Adc", STAMUNIT_OCCURENCES, "The number of times ADC was not interpreted.");
303	STAM_REG_USED(pVM, &pStats->StatRZFailedBtr, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Failed/Btr", STAMUNIT_OCCURENCES, "The number of times BTR was not interpreted.");
304	STAM_REG_USED(pVM, &pStats->StatR3FailedBtr, STAMTYPE_COUNTER, "/EM/R3/Interpret/Failed/Btr", STAMUNIT_OCCURENCES, "The number of times BTR was not interpreted.");
305	STAM_REG_USED(pVM, &pStats->StatRZFailedBts, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Failed/Bts", STAMUNIT_OCCURENCES, "The number of times BTS was not interpreted.");
306	STAM_REG_USED(pVM, &pStats->StatR3FailedBts, STAMTYPE_COUNTER, "/EM/R3/Interpret/Failed/Bts", STAMUNIT_OCCURENCES, "The number of times BTS was not interpreted.");
307	STAM_REG_USED(pVM, &pStats->StatRZFailedBtc, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Failed/Btc", STAMUNIT_OCCURENCES, "The number of times BTC was not interpreted.");
308	STAM_REG_USED(pVM, &pStats->StatR3FailedBtc, STAMTYPE_COUNTER, "/EM/R3/Interpret/Failed/Btc", STAMUNIT_OCCURENCES, "The number of times BTC was not interpreted.");
309	STAM_REG_USED(pVM, &pStats->StatRZFailedCli, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Failed/Cli", STAMUNIT_OCCURENCES, "The number of times CLI was not interpreted.");
310	STAM_REG_USED(pVM, &pStats->StatR3FailedCli, STAMTYPE_COUNTER, "/EM/R3/Interpret/Failed/Cli", STAMUNIT_OCCURENCES, "The number of times CLI was not interpreted.");
311	STAM_REG_USED(pVM, &pStats->StatRZFailedCmpXchg, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Failed/CmpXchg", STAMUNIT_OCCURENCES, "The number of times CMPXCHG was not interpreted.");
312	STAM_REG_USED(pVM, &pStats->StatR3FailedCmpXchg, STAMTYPE_COUNTER, "/EM/R3/Interpret/Failed/CmpXchg", STAMUNIT_OCCURENCES, "The number of times CMPXCHG was not interpreted.");
313	STAM_REG_USED(pVM, &pStats->StatRZFailedCmpXchg8b, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Failed/CmpXchg8b", STAMUNIT_OCCURENCES, "The number of times CMPXCHG8B was not interpreted.");
314	STAM_REG_USED(pVM, &pStats->StatR3FailedCmpXchg8b, STAMTYPE_COUNTER, "/EM/R3/Interpret/Failed/CmpXchg8b", STAMUNIT_OCCURENCES, "The number of times CMPXCHG8B was not interpreted.");
315	STAM_REG_USED(pVM, &pStats->StatRZFailedXAdd, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Failed/XAdd", STAMUNIT_OCCURENCES, "The number of times XADD was not interpreted.");
316	STAM_REG_USED(pVM, &pStats->StatR3FailedXAdd, STAMTYPE_COUNTER, "/EM/R3/Interpret/Failed/XAdd", STAMUNIT_OCCURENCES, "The number of times XADD was not interpreted.");
317	STAM_REG_USED(pVM, &pStats->StatRZFailedMovNTPS, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Failed/MovNTPS", STAMUNIT_OCCURENCES, "The number of times MOVNTPS was not interpreted.");
318	STAM_REG_USED(pVM, &pStats->StatR3FailedMovNTPS, STAMTYPE_COUNTER, "/EM/R3/Interpret/Failed/MovNTPS", STAMUNIT_OCCURENCES, "The number of times MOVNTPS was not interpreted.");
319	STAM_REG_USED(pVM, &pStats->StatRZFailedStosWD, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Failed/StosWD", STAMUNIT_OCCURENCES, "The number of times STOSWD was not interpreted.");
320	STAM_REG_USED(pVM, &pStats->StatR3FailedStosWD, STAMTYPE_COUNTER, "/EM/R3/Interpret/Failed/StosWD", STAMUNIT_OCCURENCES, "The number of times STOSWD was not interpreted.");
321	STAM_REG_USED(pVM, &pStats->StatRZFailedSub, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Failed/Sub", STAMUNIT_OCCURENCES, "The number of times SUB was not interpreted.");
322	STAM_REG_USED(pVM, &pStats->StatR3FailedSub, STAMTYPE_COUNTER, "/EM/R3/Interpret/Failed/Sub", STAMUNIT_OCCURENCES, "The number of times SUB was not interpreted.");
323	STAM_REG_USED(pVM, &pStats->StatRZFailedWbInvd, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Failed/WbInvd", STAMUNIT_OCCURENCES, "The number of times WBINVD was not interpreted.");
324	STAM_REG_USED(pVM, &pStats->StatR3FailedWbInvd, STAMTYPE_COUNTER, "/EM/R3/Interpret/Failed/WbInvd", STAMUNIT_OCCURENCES, "The number of times WBINVD was not interpreted.");
325
326	STAM_REG_USED(pVM, &pStats->StatRZFailedUserMode, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Failed/UserMode", STAMUNIT_OCCURENCES, "The number of rejections because of CPL.");
327	STAM_REG_USED(pVM, &pStats->StatR3FailedUserMode, STAMTYPE_COUNTER, "/EM/R3/Interpret/Failed/UserMode", STAMUNIT_OCCURENCES, "The number of rejections because of CPL.");
328	STAM_REG_USED(pVM, &pStats->StatRZFailedPrefix, STAMTYPE_COUNTER, "/EM/RZ/Interpret/Failed/Prefix", STAMUNIT_OCCURENCES, "The number of rejections because of prefix .");
329	STAM_REG_USED(pVM, &pStats->StatR3FailedPrefix, STAMTYPE_COUNTER, "/EM/R3/Interpret/Failed/Prefix", STAMUNIT_OCCURENCES, "The number of rejections because of prefix .");
330
331	STAM_REG_USED(pVM, &pStats->StatCli, STAMTYPE_COUNTER, "/EM/R3/PrivInst/Cli", STAMUNIT_OCCURENCES, "Number of cli instructions.");
332	STAM_REG_USED(pVM, &pStats->StatSti, STAMTYPE_COUNTER, "/EM/R3/PrivInst/Sti", STAMUNIT_OCCURENCES, "Number of sli instructions.");
333	STAM_REG_USED(pVM, &pStats->StatIn, STAMTYPE_COUNTER, "/EM/R3/PrivInst/In", STAMUNIT_OCCURENCES, "Number of in instructions.");
334	STAM_REG_USED(pVM, &pStats->StatOut, STAMTYPE_COUNTER, "/EM/R3/PrivInst/Out", STAMUNIT_OCCURENCES, "Number of out instructions.");
335	STAM_REG_USED(pVM, &pStats->StatHlt, STAMTYPE_COUNTER, "/EM/R3/PrivInst/Hlt", STAMUNIT_OCCURENCES, "Number of hlt instructions not handled in GC because of PATM.");
336	STAM_REG_USED(pVM, &pStats->StatInvlpg, STAMTYPE_COUNTER, "/EM/R3/PrivInst/Invlpg", STAMUNIT_OCCURENCES, "Number of invlpg instructions.");
337	STAM_REG_USED(pVM, &pStats->StatMisc, STAMTYPE_COUNTER, "/EM/R3/PrivInst/Misc", STAMUNIT_OCCURENCES, "Number of misc. instructions.");
338	STAM_REG_USED(pVM, &pStats->StatMovWriteCR[0], STAMTYPE_COUNTER, "/EM/R3/PrivInst/Mov CR0, X", STAMUNIT_OCCURENCES, "Number of mov CR0 read instructions.");
339	STAM_REG_USED(pVM, &pStats->StatMovWriteCR[1], STAMTYPE_COUNTER, "/EM/R3/PrivInst/Mov CR1, X", STAMUNIT_OCCURENCES, "Number of mov CR1 read instructions.");
340	STAM_REG_USED(pVM, &pStats->StatMovWriteCR[2], STAMTYPE_COUNTER, "/EM/R3/PrivInst/Mov CR2, X", STAMUNIT_OCCURENCES, "Number of mov CR2 read instructions.");
341	STAM_REG_USED(pVM, &pStats->StatMovWriteCR[3], STAMTYPE_COUNTER, "/EM/R3/PrivInst/Mov CR3, X", STAMUNIT_OCCURENCES, "Number of mov CR3 read instructions.");
342	STAM_REG_USED(pVM, &pStats->StatMovWriteCR[4], STAMTYPE_COUNTER, "/EM/R3/PrivInst/Mov CR4, X", STAMUNIT_OCCURENCES, "Number of mov CR4 read instructions.");
343	STAM_REG_USED(pVM, &pStats->StatMovReadCR[0], STAMTYPE_COUNTER, "/EM/R3/PrivInst/Mov X, CR0", STAMUNIT_OCCURENCES, "Number of mov CR0 write instructions.");
344	STAM_REG_USED(pVM, &pStats->StatMovReadCR[1], STAMTYPE_COUNTER, "/EM/R3/PrivInst/Mov X, CR1", STAMUNIT_OCCURENCES, "Number of mov CR1 write instructions.");
345	STAM_REG_USED(pVM, &pStats->StatMovReadCR[2], STAMTYPE_COUNTER, "/EM/R3/PrivInst/Mov X, CR2", STAMUNIT_OCCURENCES, "Number of mov CR2 write instructions.");
346	STAM_REG_USED(pVM, &pStats->StatMovReadCR[3], STAMTYPE_COUNTER, "/EM/R3/PrivInst/Mov X, CR3", STAMUNIT_OCCURENCES, "Number of mov CR3 write instructions.");
347	STAM_REG_USED(pVM, &pStats->StatMovReadCR[4], STAMTYPE_COUNTER, "/EM/R3/PrivInst/Mov X, CR4", STAMUNIT_OCCURENCES, "Number of mov CR4 write instructions.");
348	STAM_REG_USED(pVM, &pStats->StatMovDRx, STAMTYPE_COUNTER, "/EM/R3/PrivInst/MovDRx", STAMUNIT_OCCURENCES, "Number of mov DRx instructions.");
349	STAM_REG_USED(pVM, &pStats->StatIret, STAMTYPE_COUNTER, "/EM/R3/PrivInst/Iret", STAMUNIT_OCCURENCES, "Number of iret instructions.");
350	STAM_REG_USED(pVM, &pStats->StatMovLgdt, STAMTYPE_COUNTER, "/EM/R3/PrivInst/Lgdt", STAMUNIT_OCCURENCES, "Number of lgdt instructions.");
351	STAM_REG_USED(pVM, &pStats->StatMovLidt, STAMTYPE_COUNTER, "/EM/R3/PrivInst/Lidt", STAMUNIT_OCCURENCES, "Number of lidt instructions.");
352	STAM_REG_USED(pVM, &pStats->StatMovLldt, STAMTYPE_COUNTER, "/EM/R3/PrivInst/Lldt", STAMUNIT_OCCURENCES, "Number of lldt instructions.");
353	STAM_REG_USED(pVM, &pStats->StatSysEnter, STAMTYPE_COUNTER, "/EM/R3/PrivInst/Sysenter", STAMUNIT_OCCURENCES, "Number of sysenter instructions.");
354	STAM_REG_USED(pVM, &pStats->StatSysExit, STAMTYPE_COUNTER, "/EM/R3/PrivInst/Sysexit", STAMUNIT_OCCURENCES, "Number of sysexit instructions.");
355	STAM_REG_USED(pVM, &pStats->StatSysCall, STAMTYPE_COUNTER, "/EM/R3/PrivInst/Syscall", STAMUNIT_OCCURENCES, "Number of syscall instructions.");
356	STAM_REG_USED(pVM, &pStats->StatSysRet, STAMTYPE_COUNTER, "/EM/R3/PrivInst/Sysret", STAMUNIT_OCCURENCES, "Number of sysret instructions.");
357
358	STAM_REG(pVM, &pVM->em.s.StatTotalClis, STAMTYPE_COUNTER, "/EM/Cli/Total", STAMUNIT_OCCURENCES, "Total number of cli instructions executed.");
359	pVM->em.s.pCliStatTree = 0;
360	#endif /* VBOX_WITH_STATISTICS */
361
362	/* these should be considered for release statistics. */
363	STAM_REL_REG(pVM, &pVM->em.s.StatForcedActions, STAMTYPE_PROFILE, "/PROF/EM/ForcedActions", STAMUNIT_TICKS_PER_CALL, "Profiling forced action execution.");
364	STAM_REG(pVM, &pVM->em.s.StatIOEmu, STAMTYPE_PROFILE, "/PROF/EM/Emulation/IO", STAMUNIT_TICKS_PER_CALL, "Profiling of emR3RawExecuteIOInstruction.");
365	STAM_REG(pVM, &pVM->em.s.StatPrivEmu, STAMTYPE_PROFILE, "/PROF/EM/Emulation/Priv", STAMUNIT_TICKS_PER_CALL, "Profiling of emR3RawPrivileged.");
366	STAM_REG(pVM, &pVM->em.s.StatMiscEmu, STAMTYPE_PROFILE, "/PROF/EM/Emulation/Misc", STAMUNIT_TICKS_PER_CALL, "Profiling of emR3RawExecuteInstruction.");
367
368	STAM_REL_REG(pVM, &pVM->em.s.StatHalted, STAMTYPE_PROFILE, "/PROF/EM/Halted", STAMUNIT_TICKS_PER_CALL, "Profiling halted state (VMR3WaitHalted).");
369	STAM_REG(pVM, &pVM->em.s.StatHwAccEntry, STAMTYPE_PROFILE, "/PROF/EM/HwAccEnter", STAMUNIT_TICKS_PER_CALL, "Profiling Hardware Accelerated Mode entry overhead.");
370	STAM_REG(pVM, &pVM->em.s.StatHwAccExec, STAMTYPE_PROFILE, "/PROF/EM/HwAccExec", STAMUNIT_TICKS_PER_CALL, "Profiling Hardware Accelerated Mode execution.");
371	STAM_REG(pVM, &pVM->em.s.StatREMEmu, STAMTYPE_PROFILE, "/PROF/EM/REMEmuSingle", STAMUNIT_TICKS_PER_CALL, "Profiling single instruction REM execution.");
372	STAM_REG(pVM, &pVM->em.s.StatREMExec, STAMTYPE_PROFILE, "/PROF/EM/REMExec", STAMUNIT_TICKS_PER_CALL, "Profiling REM execution.");
373	STAM_REG(pVM, &pVM->em.s.StatREMSync, STAMTYPE_PROFILE, "/PROF/EM/REMSync", STAMUNIT_TICKS_PER_CALL, "Profiling REM context syncing.");
374	STAM_REL_REG(pVM, &pVM->em.s.StatREMTotal, STAMTYPE_PROFILE, "/PROF/EM/REMTotal", STAMUNIT_TICKS_PER_CALL, "Profiling emR3RemExecute (excluding FFs).");
375	STAM_REG(pVM, &pVM->em.s.StatRAWEntry, STAMTYPE_PROFILE, "/PROF/EM/RAWEnter", STAMUNIT_TICKS_PER_CALL, "Profiling Raw Mode entry overhead.");
376	STAM_REG(pVM, &pVM->em.s.StatRAWExec, STAMTYPE_PROFILE, "/PROF/EM/RAWExec", STAMUNIT_TICKS_PER_CALL, "Profiling Raw Mode execution.");
377	STAM_REG(pVM, &pVM->em.s.StatRAWTail, STAMTYPE_PROFILE, "/PROF/EM/RAWTail", STAMUNIT_TICKS_PER_CALL, "Profiling Raw Mode tail overhead.");
378	STAM_REL_REG(pVM, &pVM->em.s.StatRAWTotal, STAMTYPE_PROFILE, "/PROF/EM/RAWTotal", STAMUNIT_TICKS_PER_CALL, "Profiling emR3RawExecute (excluding FFs).");
379	STAM_REL_REG(pVM, &pVM->em.s.StatTotal, STAMTYPE_PROFILE_ADV, "/PROF/EM/Total", STAMUNIT_TICKS_PER_CALL, "Profiling EMR3ExecuteVM.");
380
381
382	return VINF_SUCCESS;
383	}
384
385
386	/**
387	* Initializes the per-VCPU EM.
388	*
389	* @returns VBox status code.
390	* @param pVM The VM to operate on.
391	*/
392	VMMR3DECL(int) EMR3InitCPU(PVM pVM)
393	{
394	LogFlow(("EMR3InitCPU\n"));
395	return VINF_SUCCESS;
396	}
397
398
399	/**
400	* Applies relocations to data and code managed by this
401	* component. This function will be called at init and
402	* whenever the VMM need to relocate it self inside the GC.
403	*
404	* @param pVM The VM.
405	*/
406	VMMR3DECL(void) EMR3Relocate(PVM pVM)
407	{
408	LogFlow(("EMR3Relocate\n"));
409	if (pVM->em.s.pStatsR3)
410	pVM->em.s.pStatsRC = MMHyperR3ToRC(pVM, pVM->em.s.pStatsR3);
411	}
412
413
414	/**
415	* Reset notification.
416	*
417	* @param pVM
418	*/
419	VMMR3DECL(void) EMR3Reset(PVM pVM)
420	{
421	LogFlow(("EMR3Reset: \n"));
422	pVM->em.s.fForceRAW = false;
423	}
424
425
426	/**
427	* Terminates the EM.
428	*
429	* Termination means cleaning up and freeing all resources,
430	* the VM it self is at this point powered off or suspended.
431	*
432	* @returns VBox status code.
433	* @param pVM The VM to operate on.
434	*/
435	VMMR3DECL(int) EMR3Term(PVM pVM)
436	{
437	AssertMsg(pVM->em.s.offVM, ("bad init order!\n"));
438
439	return VINF_SUCCESS;
440	}
441
442	/**
443	* Terminates the per-VCPU EM.
444	*
445	* Termination means cleaning up and freeing all resources,
446	* the VM it self is at this point powered off or suspended.
447	*
448	* @returns VBox status code.
449	* @param pVM The VM to operate on.
450	*/
451	VMMR3DECL(int) EMR3TermCPU(PVM pVM)
452	{
453	return 0;
454	}
455
456	/**
457	* Execute state save operation.
458	*
459	* @returns VBox status code.
460	* @param pVM VM Handle.
461	* @param pSSM SSM operation handle.
462	*/
463	static DECLCALLBACK(int) emR3Save(PVM pVM, PSSMHANDLE pSSM)
464	{
465	return SSMR3PutBool(pSSM, pVM->em.s.fForceRAW);
466	}
467
468
469	/**
470	* Execute state load operation.
471	*
472	* @returns VBox status code.
473	* @param pVM VM Handle.
474	* @param pSSM SSM operation handle.
475	* @param u32Version Data layout version.
476	*/
477	static DECLCALLBACK(int) emR3Load(PVM pVM, PSSMHANDLE pSSM, uint32_t u32Version)
478	{
479	/*
480	* Validate version.
481	*/
482	if (u32Version != EM_SAVED_STATE_VERSION)
483	{
484	AssertMsgFailed(("emR3Load: Invalid version u32Version=%d (current %d)!\n", u32Version, EM_SAVED_STATE_VERSION));
485	return VERR_SSM_UNSUPPORTED_DATA_UNIT_VERSION;
486	}
487
488	/*
489	* Load the saved state.
490	*/
491	int rc = SSMR3GetBool(pSSM, &pVM->em.s.fForceRAW);
492	if (RT_FAILURE(rc))
493	pVM->em.s.fForceRAW = false;
494
495	Assert(!pVM->em.s.pCliStatTree);
496	return rc;
497	}
498
499
500	/**
501	* Enables or disables a set of raw-mode execution modes.
502	*
503	* @returns VINF_SUCCESS on success.
504	* @returns VINF_RESCHEDULE if a rescheduling might be required.
505	* @returns VERR_INVALID_PARAMETER on an invalid enmMode value.
506	*
507	* @param pVM The VM to operate on.
508	* @param enmMode The execution mode change.
509	* @thread The emulation thread.
510	*/
511	VMMR3DECL(int) EMR3RawSetMode(PVM pVM, EMRAWMODE enmMode)
512	{
513	switch (enmMode)
514	{
515	case EMRAW_NONE:
516	pVM->fRawR3Enabled = false;
517	pVM->fRawR0Enabled = false;
518	break;
519	case EMRAW_RING3_ENABLE:
520	pVM->fRawR3Enabled = true;
521	break;
522	case EMRAW_RING3_DISABLE:
523	pVM->fRawR3Enabled = false;
524	break;
525	case EMRAW_RING0_ENABLE:
526	pVM->fRawR0Enabled = true;
527	break;
528	case EMRAW_RING0_DISABLE:
529	pVM->fRawR0Enabled = false;
530	break;
531	default:
532	AssertMsgFailed(("Invalid enmMode=%d\n", enmMode));
533	return VERR_INVALID_PARAMETER;
534	}
535	Log(("EMR3SetRawMode: fRawR3Enabled=%RTbool fRawR0Enabled=%RTbool\n",
536	pVM->fRawR3Enabled, pVM->fRawR0Enabled));
537	return pVM->em.s.enmState == EMSTATE_RAW ? VINF_EM_RESCHEDULE : VINF_SUCCESS;
538	}
539
540
541	/**
542	* Raise a fatal error.
543	*
544	* Safely terminate the VM with full state report and stuff. This function
545	* will naturally never return.
546	*
547	* @param pVM VM handle.
548	* @param rc VBox status code.
549	*/
550	VMMR3DECL(void) EMR3FatalError(PVM pVM, int rc)
551	{
552	longjmp(pVM->em.s.u.FatalLongJump, rc);
553	AssertReleaseMsgFailed(("longjmp returned!\n"));
554	}
555
556
557	/**
558	* Gets the EM state name.
559	*
560	* @returns pointer to read only state name,
561	* @param enmState The state.
562	*/
563	VMMR3DECL(const char *) EMR3GetStateName(EMSTATE enmState)
564	{
565	switch (enmState)
566	{
567	case EMSTATE_NONE: return "EMSTATE_NONE";
568	case EMSTATE_RAW: return "EMSTATE_RAW";
569	case EMSTATE_HWACC: return "EMSTATE_HWACC";
570	case EMSTATE_REM: return "EMSTATE_REM";
571	case EMSTATE_PARAV: return "EMSTATE_PARAV";
572	case EMSTATE_HALTED: return "EMSTATE_HALTED";
573	case EMSTATE_SUSPENDED: return "EMSTATE_SUSPENDED";
574	case EMSTATE_TERMINATING: return "EMSTATE_TERMINATING";
575	case EMSTATE_DEBUG_GUEST_RAW: return "EMSTATE_DEBUG_GUEST_RAW";
576	case EMSTATE_DEBUG_GUEST_REM: return "EMSTATE_DEBUG_GUEST_REM";
577	case EMSTATE_DEBUG_HYPER: return "EMSTATE_DEBUG_HYPER";
578	case EMSTATE_GURU_MEDITATION: return "EMSTATE_GURU_MEDITATION";
579	default: return "Unknown!";
580	}
581	}
582
583
584	#ifdef VBOX_WITH_STATISTICS
585	/**
586	* Just a braindead function to keep track of cli addresses.
587	* @param pVM VM handle.
588	* @param GCPtrInstr The EIP of the cli instruction.
589	*/
590	static void emR3RecordCli(PVM pVM, RTGCPTR GCPtrInstr)
591	{
592	PCLISTAT pRec;
593
594	pRec = (PCLISTAT)RTAvlPVGet(&pVM->em.s.pCliStatTree, (AVLPVKEY)GCPtrInstr);
595	if (!pRec)
596	{
597	/* New cli instruction; insert into the tree. */
598	pRec = (PCLISTAT)MMR3HeapAllocZ(pVM, MM_TAG_EM, sizeof(*pRec));
599	Assert(pRec);
600	if (!pRec)
601	return;
602	pRec->Core.Key = (AVLPVKEY)GCPtrInstr;
603
604	char szCliStatName[32];
605	RTStrPrintf(szCliStatName, sizeof(szCliStatName), "/EM/Cli/0x%RGv", GCPtrInstr);
606	STAM_REG(pVM, &pRec->Counter, STAMTYPE_COUNTER, szCliStatName, STAMUNIT_OCCURENCES, "Number of times cli was executed.");
607
608	bool fRc = RTAvlPVInsert(&pVM->em.s.pCliStatTree, &pRec->Core);
609	Assert(fRc); NOREF(fRc);
610	}
611	STAM_COUNTER_INC(&pRec->Counter);
612	STAM_COUNTER_INC(&pVM->em.s.StatTotalClis);
613	}
614	#endif /* VBOX_WITH_STATISTICS */
615
616
617	/**
618	* Debug loop.
619	*
620	* @returns VBox status code for EM.
621	* @param pVM VM handle.
622	* @param rc Current EM VBox status code..
623	*/
624	static int emR3Debug(PVM pVM, int rc)
625	{
626	for (;;)
627	{
628	Log(("emR3Debug: rc=%Rrc\n", rc));
629	const int rcLast = rc;
630
631	/*
632	* Debug related RC.
633	*/
634	switch (rc)
635	{
636	/*
637	* Single step an instruction.
638	*/
639	case VINF_EM_DBG_STEP:
640	if ( pVM->em.s.enmState == EMSTATE_DEBUG_GUEST_RAW
641	\|\| pVM->em.s.enmState == EMSTATE_DEBUG_HYPER
642	\|\| pVM->em.s.fForceRAW /* paranoia */)
643	rc = emR3RawStep(pVM);
644	else
645	{
646	Assert(pVM->em.s.enmState == EMSTATE_DEBUG_GUEST_REM);
647	rc = emR3RemStep(pVM);
648	}
649	break;
650
651	/*
652	* Simple events: stepped, breakpoint, stop/assertion.
653	*/
654	case VINF_EM_DBG_STEPPED:
655	rc = DBGFR3Event(pVM, DBGFEVENT_STEPPED);
656	break;
657
658	case VINF_EM_DBG_BREAKPOINT:
659	rc = DBGFR3EventBreakpoint(pVM, DBGFEVENT_BREAKPOINT);
660	break;
661
662	case VINF_EM_DBG_STOP:
663	rc = DBGFR3EventSrc(pVM, DBGFEVENT_DEV_STOP, NULL, 0, NULL, NULL);
664	break;
665
666	case VINF_EM_DBG_HYPER_STEPPED:
667	rc = DBGFR3Event(pVM, DBGFEVENT_STEPPED_HYPER);
668	break;
669
670	case VINF_EM_DBG_HYPER_BREAKPOINT:
671	rc = DBGFR3EventBreakpoint(pVM, DBGFEVENT_BREAKPOINT_HYPER);
672	break;
673
674	case VINF_EM_DBG_HYPER_ASSERTION:
675	RTPrintf("\nVINF_EM_DBG_HYPER_ASSERTION:\n%s%s\n", VMMR3GetRZAssertMsg1(pVM), VMMR3GetRZAssertMsg2(pVM));
676	rc = DBGFR3EventAssertion(pVM, DBGFEVENT_ASSERTION_HYPER, VMMR3GetRZAssertMsg1(pVM), VMMR3GetRZAssertMsg2(pVM));
677	break;
678
679	/*
680	* Guru meditation.
681	*/
682	case VERR_VMM_RING0_ASSERTION: /** @todo Make a guru meditation event! */
683	rc = DBGFR3EventSrc(pVM, DBGFEVENT_FATAL_ERROR, "VERR_VMM_RING0_ASSERTION", 0, NULL, NULL);
684	break;
685	case VERR_REM_TOO_MANY_TRAPS: /** @todo Make a guru meditation event! */
686	rc = DBGFR3EventSrc(pVM, DBGFEVENT_DEV_STOP, "VERR_REM_TOO_MANY_TRAPS", 0, NULL, NULL);
687	break;
688
689	default: /** @todo don't use default for guru, but make special errors code! */
690	rc = DBGFR3Event(pVM, DBGFEVENT_FATAL_ERROR);
691	break;
692	}
693
694	/*
695	* Process the result.
696	*/
697	do
698	{
699	switch (rc)
700	{
701	/*
702	* Continue the debugging loop.
703	*/
704	case VINF_EM_DBG_STEP:
705	case VINF_EM_DBG_STOP:
706	case VINF_EM_DBG_STEPPED:
707	case VINF_EM_DBG_BREAKPOINT:
708	case VINF_EM_DBG_HYPER_STEPPED:
709	case VINF_EM_DBG_HYPER_BREAKPOINT:
710	case VINF_EM_DBG_HYPER_ASSERTION:
711	break;
712
713	/*
714	* Resuming execution (in some form) has to be done here if we got
715	* a hypervisor debug event.
716	*/
717	case VINF_SUCCESS:
718	case VINF_EM_RESUME:
719	case VINF_EM_SUSPEND:
720	case VINF_EM_RESCHEDULE:
721	case VINF_EM_RESCHEDULE_RAW:
722	case VINF_EM_RESCHEDULE_REM:
723	case VINF_EM_HALT:
724	if (pVM->em.s.enmState == EMSTATE_DEBUG_HYPER)
725	{
726	rc = emR3RawResumeHyper(pVM);
727	if (rc != VINF_SUCCESS && RT_SUCCESS(rc))
728	continue;
729	}
730	if (rc == VINF_SUCCESS)
731	rc = VINF_EM_RESCHEDULE;
732	return rc;
733
734	/*
735	* The debugger isn't attached.
736	* We'll simply turn the thing off since that's the easiest thing to do.
737	*/
738	case VERR_DBGF_NOT_ATTACHED:
739	switch (rcLast)
740	{
741	case VINF_EM_DBG_HYPER_STEPPED:
742	case VINF_EM_DBG_HYPER_BREAKPOINT:
743	case VINF_EM_DBG_HYPER_ASSERTION:
744	case VERR_TRPM_PANIC:
745	case VERR_TRPM_DONT_PANIC:
746	case VERR_VMM_RING0_ASSERTION:
747	return rcLast;
748	}
749	return VINF_EM_OFF;
750
751	/*
752	* Status codes terminating the VM in one or another sense.
753	*/
754	case VINF_EM_TERMINATE:
755	case VINF_EM_OFF:
756	case VINF_EM_RESET:
757	case VINF_EM_RAW_STALE_SELECTOR:
758	case VINF_EM_RAW_IRET_TRAP:
759	case VERR_TRPM_PANIC:
760	case VERR_TRPM_DONT_PANIC:
761	case VERR_VMM_RING0_ASSERTION:
762	case VERR_INTERNAL_ERROR:
763	return rc;
764
765	/*
766	* The rest is unexpected, and will keep us here.
767	*/
768	default:
769	AssertMsgFailed(("Unxpected rc %Rrc!\n", rc));
770	break;
771	}
772	} while (false);
773	} /* debug for ever */
774	}
775
776
777	/**
778	* Steps recompiled code.
779	*
780	* @returns VBox status code. The most important ones are: VINF_EM_STEP_EVENT,
781	* VINF_EM_RESCHEDULE, VINF_EM_SUSPEND, VINF_EM_RESET and VINF_EM_TERMINATE.
782	*
783	* @param pVM VM handle.
784	*/
785	static int emR3RemStep(PVM pVM)
786	{
787	LogFlow(("emR3RemStep: cs:eip=%04x:%08x\n", CPUMGetGuestCS(pVM), CPUMGetGuestEIP(pVM)));
788
789	/*
790	* Switch to REM, step instruction, switch back.
791	*/
792	int rc = REMR3State(pVM);
793	if (RT_SUCCESS(rc))
794	{
795	rc = REMR3Step(pVM);
796	REMR3StateBack(pVM);
797	}
798	LogFlow(("emR3RemStep: returns %Rrc cs:eip=%04x:%08x\n", rc, CPUMGetGuestCS(pVM), CPUMGetGuestEIP(pVM)));
799	return rc;
800	}
801
802
803	/**
804	* Executes recompiled code.
805	*
806	* This function contains the recompiler version of the inner
807	* execution loop (the outer loop being in EMR3ExecuteVM()).
808	*
809	* @returns VBox status code. The most important ones are: VINF_EM_RESCHEDULE,
810	* VINF_EM_SUSPEND, VINF_EM_RESET and VINF_EM_TERMINATE.
811	*
812	* @param pVM VM handle.
813	* @param pfFFDone Where to store an indicator telling wheter or not
814	* FFs were done before returning.
815	*
816	*/
817	static int emR3RemExecute(PVM pVM, bool *pfFFDone)
818	{
819	#ifdef LOG_ENABLED
820	PCPUMCTX pCtx = pVM->em.s.pCtx;
821	uint32_t cpl = CPUMGetGuestCPL(pVM, CPUMCTX2CORE(pCtx));
822
823	if (pCtx->eflags.Bits.u1VM)
824	Log(("EMV86: %04X:%08X IF=%d\n", pCtx->cs, pCtx->eip, pCtx->eflags.Bits.u1IF));
825	else
826	Log(("EMR%d: %04X:%08X ESP=%08X IF=%d CR0=%x\n", cpl, pCtx->cs, pCtx->eip, pCtx->esp, pCtx->eflags.Bits.u1IF, (uint32_t)pCtx->cr0));
827	#endif
828	STAM_REL_PROFILE_ADV_START(&pVM->em.s.StatREMTotal, a);
829
830	#if defined(VBOX_STRICT) && defined(DEBUG_bird)
831	AssertMsg( VM_FF_ISPENDING(pVM, VM_FF_PGM_SYNC_CR3\|VM_FF_PGM_SYNC_CR3_NON_GLOBAL)
832	\|\| !MMHyperIsInsideArea(pVM, CPUMGetGuestEIP(pVM)), /** @todo #1419 - get flat address. */
833	("cs:eip=%RX16:%RX32\n", CPUMGetGuestCS(pVM), CPUMGetGuestEIP(pVM)));
834	#endif
835
836	/*
837	* Spin till we get a forced action which returns anything but VINF_SUCCESS
838	* or the REM suggests raw-mode execution.
839	*/
840	*pfFFDone = false;
841	bool fInREMState = false;
842	int rc = VINF_SUCCESS;
843	for (;;)
844	{
845	/*
846	* Update REM state if not already in sync.
847	*/
848	if (!fInREMState)
849	{
850	STAM_PROFILE_START(&pVM->em.s.StatREMSync, b);
851	rc = REMR3State(pVM);
852	STAM_PROFILE_STOP(&pVM->em.s.StatREMSync, b);
853	if (RT_FAILURE(rc))
854	break;
855	fInREMState = true;
856
857	/*
858	* We might have missed the raising of VMREQ, TIMER and some other
859	* imporant FFs while we were busy switching the state. So, check again.
860	*/
861	if (VM_FF_ISPENDING(pVM, VM_FF_REQUEST \| VM_FF_TIMER \| VM_FF_PDM_QUEUES \| VM_FF_DBGF \| VM_FF_TERMINATE \| VM_FF_RESET))
862	{
863	LogFlow(("emR3RemExecute: Skipping run, because FF is set. %#x\n", pVM->fForcedActions));
864	goto l_REMDoForcedActions;
865	}
866	}
867
868
869	/*
870	* Execute REM.
871	*/
872	STAM_PROFILE_START(&pVM->em.s.StatREMExec, c);
873	rc = REMR3Run(pVM);
874	STAM_PROFILE_STOP(&pVM->em.s.StatREMExec, c);
875
876
877	/*
878	* Deal with high priority post execution FFs before doing anything else.
879	*/
880	if (VM_FF_ISPENDING(pVM, VM_FF_HIGH_PRIORITY_POST_MASK))
881	rc = emR3HighPriorityPostForcedActions(pVM, rc);
882
883	/*
884	* Process the returned status code.
885	* (Try keep this short! Call functions!)
886	*/
887	if (rc != VINF_SUCCESS)
888	{
889	if (rc >= VINF_EM_FIRST && rc <= VINF_EM_LAST)
890	break;
891	if (rc != VINF_REM_INTERRUPED_FF)
892	{
893	/*
894	* Anything which is not known to us means an internal error
895	* and the termination of the VM!
896	*/
897	AssertMsg(rc == VERR_REM_TOO_MANY_TRAPS, ("Unknown GC return code: %Rra\n", rc));
898	break;
899	}
900	}
901
902
903	/*
904	* Check and execute forced actions.
905	* Sync back the VM state before calling any of these.
906	*/
907	#ifdef VBOX_HIGH_RES_TIMERS_HACK
908	TMTimerPoll(pVM);
909	#endif
910	if (VM_FF_ISPENDING(pVM, VM_FF_ALL_BUT_RAW_MASK & ~(VM_FF_CSAM_PENDING_ACTION \| VM_FF_CSAM_SCAN_PAGE)))
911	{
912	l_REMDoForcedActions:
913	if (fInREMState)
914	{
915	STAM_PROFILE_START(&pVM->em.s.StatREMSync, d);
916	REMR3StateBack(pVM);
917	STAM_PROFILE_STOP(&pVM->em.s.StatREMSync, d);
918	fInREMState = false;
919	}
920	STAM_REL_PROFILE_ADV_SUSPEND(&pVM->em.s.StatREMTotal, a);
921	rc = emR3ForcedActions(pVM, rc);
922	STAM_REL_PROFILE_ADV_RESUME(&pVM->em.s.StatREMTotal, a);
923	if ( rc != VINF_SUCCESS
924	&& rc != VINF_EM_RESCHEDULE_REM)
925	{
926	*pfFFDone = true;
927	break;
928	}
929	}
930
931	} /* The Inner Loop, recompiled execution mode version. */
932
933
934	/*
935	* Returning. Sync back the VM state if required.
936	*/
937	if (fInREMState)
938	{
939	STAM_PROFILE_START(&pVM->em.s.StatREMSync, e);
940	REMR3StateBack(pVM);
941	STAM_PROFILE_STOP(&pVM->em.s.StatREMSync, e);
942	}
943
944	STAM_REL_PROFILE_ADV_STOP(&pVM->em.s.StatREMTotal, a);
945	return rc;
946	}
947
948
949	/**
950	* Resumes executing hypervisor after a debug event.
951	*
952	* This is kind of special since our current guest state is
953	* potentially out of sync.
954	*
955	* @returns VBox status code.
956	* @param pVM The VM handle.
957	*/
958	static int emR3RawResumeHyper(PVM pVM)
959	{
960	int rc;
961	PCPUMCTX pCtx = pVM->em.s.pCtx;
962	Assert(pVM->em.s.enmState == EMSTATE_DEBUG_HYPER);
963	Log(("emR3RawResumeHyper: cs:eip=%RTsel:%RGr efl=%RGr\n", pCtx->cs, pCtx->eip, pCtx->eflags));
964
965	/*
966	* Resume execution.
967	*/
968	CPUMRawEnter(pVM, NULL);
969	CPUMSetHyperEFlags(pVM, CPUMGetHyperEFlags(pVM) \| X86_EFL_RF);
970	rc = VMMR3ResumeHyper(pVM);
971	Log(("emR3RawStep: cs:eip=%RTsel:%RGr efl=%RGr - returned from GC with rc=%Rrc\n", pCtx->cs, pCtx->eip, pCtx->eflags, rc));
972	rc = CPUMRawLeave(pVM, NULL, rc);
973	VM_FF_CLEAR(pVM, VM_FF_RESUME_GUEST_MASK);
974
975	/*
976	* Deal with the return code.
977	*/
978	rc = emR3HighPriorityPostForcedActions(pVM, rc);
979	rc = emR3RawHandleRC(pVM, pCtx, rc);
980	rc = emR3RawUpdateForceFlag(pVM, pCtx, rc);
981	return rc;
982	}
983
984
985	/**
986	* Steps rawmode.
987	*
988	* @returns VBox status code.
989	* @param pVM The VM handle.
990	*/
991	static int emR3RawStep(PVM pVM)
992	{
993	Assert( pVM->em.s.enmState == EMSTATE_DEBUG_HYPER
994	\|\| pVM->em.s.enmState == EMSTATE_DEBUG_GUEST_RAW
995	\|\| pVM->em.s.enmState == EMSTATE_DEBUG_GUEST_REM);
996	int rc;
997	PCPUMCTX pCtx = pVM->em.s.pCtx;
998	bool fGuest = pVM->em.s.enmState != EMSTATE_DEBUG_HYPER;
999	#ifndef DEBUG_sandervl
1000	Log(("emR3RawStep: cs:eip=%RTsel:%RGr efl=%RGr\n", fGuest ? CPUMGetGuestCS(pVM) : CPUMGetHyperCS(pVM),
1001	fGuest ? CPUMGetGuestEIP(pVM) : CPUMGetHyperEIP(pVM), fGuest ? CPUMGetGuestEFlags(pVM) : CPUMGetHyperEFlags(pVM)));
1002	#endif
1003	if (fGuest)
1004	{
1005	/*
1006	* Check vital forced actions, but ignore pending interrupts and timers.
1007	*/
1008	if (VM_FF_ISPENDING(pVM, VM_FF_HIGH_PRIORITY_PRE_RAW_MASK))
1009	{
1010	rc = emR3RawForcedActions(pVM, pCtx);
1011	if (RT_FAILURE(rc))
1012	return rc;
1013	}
1014
1015	/*
1016	* Set flags for single stepping.
1017	*/
1018	CPUMSetGuestEFlags(pVM, CPUMGetGuestEFlags(pVM) \| X86_EFL_TF \| X86_EFL_RF);
1019	}
1020	else
1021	CPUMSetHyperEFlags(pVM, CPUMGetHyperEFlags(pVM) \| X86_EFL_TF \| X86_EFL_RF);
1022
1023	/*
1024	* Single step.
1025	* We do not start time or anything, if anything we should just do a few nanoseconds.
1026	*/
1027	CPUMRawEnter(pVM, NULL);
1028	do
1029	{
1030	if (pVM->em.s.enmState == EMSTATE_DEBUG_HYPER)
1031	rc = VMMR3ResumeHyper(pVM);
1032	else
1033	rc = VMMR3RawRunGC(pVM);
1034	#ifndef DEBUG_sandervl
1035	Log(("emR3RawStep: cs:eip=%RTsel:%RGr efl=%RGr - GC rc %Rrc\n", fGuest ? CPUMGetGuestCS(pVM) : CPUMGetHyperCS(pVM),
1036	fGuest ? CPUMGetGuestEIP(pVM) : CPUMGetHyperEIP(pVM), fGuest ? CPUMGetGuestEFlags(pVM) : CPUMGetHyperEFlags(pVM), rc));
1037	#endif
1038	} while ( rc == VINF_SUCCESS
1039	\|\| rc == VINF_EM_RAW_INTERRUPT);
1040	rc = CPUMRawLeave(pVM, NULL, rc);
1041	VM_FF_CLEAR(pVM, VM_FF_RESUME_GUEST_MASK);
1042
1043	/*
1044	* Make sure the trap flag is cleared.
1045	* (Too bad if the guest is trying to single step too.)
1046	*/
1047	if (fGuest)
1048	CPUMSetGuestEFlags(pVM, CPUMGetGuestEFlags(pVM) & ~X86_EFL_TF);
1049	else
1050	CPUMSetHyperEFlags(pVM, CPUMGetHyperEFlags(pVM) & ~X86_EFL_TF);
1051
1052	/*
1053	* Deal with the return codes.
1054	*/
1055	rc = emR3HighPriorityPostForcedActions(pVM, rc);
1056	rc = emR3RawHandleRC(pVM, pCtx, rc);
1057	rc = emR3RawUpdateForceFlag(pVM, pCtx, rc);
1058	return rc;
1059	}
1060
1061
1062	#ifdef DEBUG
1063
1064	/**
1065	* Steps hardware accelerated mode.
1066	*
1067	* @returns VBox status code.
1068	* @param pVM The VM handle.
1069	* @param idCpu VMCPU id.
1070	*/
1071	static int emR3HwAccStep(PVM pVM, RTCPUID idCpu)
1072	{
1073	Assert(pVM->em.s.enmState == EMSTATE_DEBUG_GUEST_HWACC);
1074
1075	int rc;
1076	PCPUMCTX pCtx = pVM->em.s.pCtx;
1077	VM_FF_CLEAR(pVM, (VM_FF_SELM_SYNC_GDT \| VM_FF_SELM_SYNC_LDT \| VM_FF_TRPM_SYNC_IDT \| VM_FF_SELM_SYNC_TSS));
1078
1079	/*
1080	* Check vital forced actions, but ignore pending interrupts and timers.
1081	*/
1082	if (VM_FF_ISPENDING(pVM, VM_FF_HIGH_PRIORITY_PRE_RAW_MASK))
1083	{
1084	rc = emR3RawForcedActions(pVM, pCtx);
1085	if (RT_FAILURE(rc))
1086	return rc;
1087	}
1088	/*
1089	* Set flags for single stepping.
1090	*/
1091	CPUMSetGuestEFlags(pVM, CPUMGetGuestEFlags(pVM) \| X86_EFL_TF \| X86_EFL_RF);
1092
1093	/*
1094	* Single step.
1095	* We do not start time or anything, if anything we should just do a few nanoseconds.
1096	*/
1097	do
1098	{
1099	rc = VMMR3HwAccRunGC(pVM, idCpu);
1100	} while ( rc == VINF_SUCCESS
1101	\|\| rc == VINF_EM_RAW_INTERRUPT);
1102	VM_FF_CLEAR(pVM, VM_FF_RESUME_GUEST_MASK);
1103
1104	/*
1105	* Make sure the trap flag is cleared.
1106	* (Too bad if the guest is trying to single step too.)
1107	*/
1108	CPUMSetGuestEFlags(pVM, CPUMGetGuestEFlags(pVM) & ~X86_EFL_TF);
1109
1110	/*
1111	* Deal with the return codes.
1112	*/
1113	rc = emR3HighPriorityPostForcedActions(pVM, rc);
1114	rc = emR3RawHandleRC(pVM, pCtx, rc);
1115	rc = emR3RawUpdateForceFlag(pVM, pCtx, rc);
1116	return rc;
1117	}
1118
1119
1120	void emR3SingleStepExecRaw(PVM pVM, uint32_t cIterations)
1121	{
1122	EMSTATE enmOldState = pVM->em.s.enmState;
1123
1124	pVM->em.s.enmState = EMSTATE_DEBUG_GUEST_RAW;
1125
1126	Log(("Single step BEGIN:\n"));
1127	for (uint32_t i = 0; i < cIterations; i++)
1128	{
1129	DBGFR3PrgStep(pVM);
1130	DBGFR3DisasInstrCurrentLog(pVM, "RSS: ");
1131	emR3RawStep(pVM);
1132	}
1133	Log(("Single step END:\n"));
1134	CPUMSetGuestEFlags(pVM, CPUMGetGuestEFlags(pVM) & ~X86_EFL_TF);
1135	pVM->em.s.enmState = enmOldState;
1136	}
1137
1138
1139	static int emR3SingleStepExecHwAcc(PVM pVM, RTCPUID idCpu, uint32_t cIterations)
1140	{
1141	EMSTATE enmOldState = pVM->em.s.enmState;
1142
1143	pVM->em.s.enmState = EMSTATE_DEBUG_GUEST_HWACC;
1144
1145	Log(("Single step BEGIN:\n"));
1146	for (uint32_t i = 0; i < cIterations; i++)
1147	{
1148	DBGFR3PrgStep(pVM);
1149	DBGFR3DisasInstrCurrentLog(pVM, "RSS: ");
1150	emR3HwAccStep(pVM, idCpu);
1151	if (!HWACCMR3CanExecuteGuest(pVM, pVM->em.s.pCtx))
1152	break;
1153	}
1154	Log(("Single step END:\n"));
1155	CPUMSetGuestEFlags(pVM, CPUMGetGuestEFlags(pVM) & ~X86_EFL_TF);
1156	pVM->em.s.enmState = enmOldState;
1157	return VINF_EM_RESCHEDULE_REM;
1158	}
1159
1160
1161	static int emR3SingleStepExecRem(PVM pVM, uint32_t cIterations)
1162	{
1163	EMSTATE enmOldState = pVM->em.s.enmState;
1164
1165	pVM->em.s.enmState = EMSTATE_DEBUG_GUEST_REM;
1166
1167	Log(("Single step BEGIN:\n"));
1168	for (uint32_t i = 0; i < cIterations; i++)
1169	{
1170	DBGFR3PrgStep(pVM);
1171	DBGFR3DisasInstrCurrentLog(pVM, "RSS: ");
1172	emR3RemStep(pVM);
1173	if (emR3Reschedule(pVM, pVM->em.s.pCtx) != EMSTATE_REM)
1174	break;
1175	}
1176	Log(("Single step END:\n"));
1177	CPUMSetGuestEFlags(pVM, CPUMGetGuestEFlags(pVM) & ~X86_EFL_TF);
1178	pVM->em.s.enmState = enmOldState;
1179	return VINF_EM_RESCHEDULE;
1180	}
1181
1182	#endif /* DEBUG */
1183
1184
1185	/**
1186	* Executes one (or perhaps a few more) instruction(s).
1187	*
1188	* @returns VBox status code suitable for EM.
1189	*
1190	* @param pVM VM handle.
1191	* @param rcGC GC return code
1192	* @param pszPrefix Disassembly prefix. If not NULL we'll disassemble the
1193	* instruction and prefix the log output with this text.
1194	*/
1195	#ifdef LOG_ENABLED
1196	static int emR3RawExecuteInstructionWorker(PVM pVM, int rcGC, const char *pszPrefix)
1197	#else
1198	static int emR3RawExecuteInstructionWorker(PVM pVM, int rcGC)
1199	#endif
1200	{
1201	PCPUMCTX pCtx = pVM->em.s.pCtx;
1202	int rc;
1203
1204	/*
1205	*
1206	* The simple solution is to use the recompiler.
1207	* The better solution is to disassemble the current instruction and
1208	* try handle as many as possible without using REM.
1209	*
1210	*/
1211
1212	#ifdef LOG_ENABLED
1213	/*
1214	* Disassemble the instruction if requested.
1215	*/
1216	if (pszPrefix)
1217	{
1218	DBGFR3InfoLog(pVM, "cpumguest", pszPrefix);
1219	DBGFR3DisasInstrCurrentLog(pVM, pszPrefix);
1220	}
1221	#endif /* LOG_ENABLED */
1222
1223	/*
1224	* PATM is making life more interesting.
1225	* We cannot hand anything to REM which has an EIP inside patch code. So, we'll
1226	* tell PATM there is a trap in this code and have it take the appropriate actions
1227	* to allow us execute the code in REM.
1228	*/
1229	if (PATMIsPatchGCAddr(pVM, pCtx->eip))
1230	{
1231	Log(("emR3RawExecuteInstruction: In patch block. eip=%RRv\n", (RTRCPTR)pCtx->eip));
1232
1233	RTGCPTR pNewEip;
1234	rc = PATMR3HandleTrap(pVM, pCtx, pCtx->eip, &pNewEip);
1235	switch (rc)
1236	{
1237	/*
1238	* It's not very useful to emulate a single instruction and then go back to raw
1239	* mode; just execute the whole block until IF is set again.
1240	*/
1241	case VINF_SUCCESS:
1242	Log(("emR3RawExecuteInstruction: Executing instruction starting at new address %RGv IF=%d VMIF=%x\n",
1243	pNewEip, pCtx->eflags.Bits.u1IF, pVM->em.s.pPatmGCState->uVMFlags));
1244	pCtx->eip = pNewEip;
1245	Assert(pCtx->eip);
1246
1247	if (pCtx->eflags.Bits.u1IF)
1248	{
1249	/*
1250	* The last instruction in the patch block needs to be executed!! (sti/sysexit for example)
1251	*/
1252	Log(("PATCH: IF=1 -> emulate last instruction as it can't be interrupted!!\n"));
1253	return emR3RawExecuteInstruction(pVM, "PATCHIR");
1254	}
1255	else if (rcGC == VINF_PATM_PENDING_IRQ_AFTER_IRET)
1256	{
1257	/* special case: iret, that sets IF, detected a pending irq/event */
1258	return emR3RawExecuteInstruction(pVM, "PATCHIRET");
1259	}
1260	return VINF_EM_RESCHEDULE_REM;
1261
1262	/*
1263	* One instruction.
1264	*/
1265	case VINF_PATCH_EMULATE_INSTR:
1266	Log(("emR3RawExecuteInstruction: Emulate patched instruction at %RGv IF=%d VMIF=%x\n",
1267	pNewEip, pCtx->eflags.Bits.u1IF, pVM->em.s.pPatmGCState->uVMFlags));
1268	pCtx->eip = pNewEip;
1269	return emR3RawExecuteInstruction(pVM, "PATCHIR");
1270
1271	/*
1272	* The patch was disabled, hand it to the REM.
1273	*/
1274	case VERR_PATCH_DISABLED:
1275	Log(("emR3RawExecuteInstruction: Disabled patch -> new eip %RGv IF=%d VMIF=%x\n",
1276	pNewEip, pCtx->eflags.Bits.u1IF, pVM->em.s.pPatmGCState->uVMFlags));
1277	pCtx->eip = pNewEip;
1278	if (pCtx->eflags.Bits.u1IF)
1279	{
1280	/*
1281	* The last instruction in the patch block needs to be executed!! (sti/sysexit for example)
1282	*/
1283	Log(("PATCH: IF=1 -> emulate last instruction as it can't be interrupted!!\n"));
1284	return emR3RawExecuteInstruction(pVM, "PATCHIR");
1285	}
1286	return VINF_EM_RESCHEDULE_REM;
1287
1288	/* Force continued patch exection; usually due to write monitored stack. */
1289	case VINF_PATCH_CONTINUE:
1290	return VINF_SUCCESS;
1291
1292	default:
1293	AssertReleaseMsgFailed(("Unknown return code %Rrc from PATMR3HandleTrap\n", rc));
1294	return VERR_INTERNAL_ERROR;
1295	}
1296	}
1297
1298	#if 0
1299	/* Try our own instruction emulator before falling back to the recompiler. */
1300	DISCPUSTATE Cpu;
1301	rc = CPUMR3DisasmInstrCPU(pVM, pCtx, pCtx->rip, &Cpu, "GEN EMU");
1302	if (RT_SUCCESS(rc))
1303	{
1304	uint32_t size;
1305
1306	switch (Cpu.pCurInstr->opcode)
1307	{
1308	/* @todo we can do more now */
1309	case OP_MOV:
1310	case OP_AND:
1311	case OP_OR:
1312	case OP_XOR:
1313	case OP_POP:
1314	case OP_INC:
1315	case OP_DEC:
1316	case OP_XCHG:
1317	STAM_PROFILE_START(&pVM->em.s.StatMiscEmu, a);
1318	rc = EMInterpretInstructionCPU(pVM, &Cpu, CPUMCTX2CORE(pCtx), 0, &size);
1319	if (RT_SUCCESS(rc))
1320	{
1321	pCtx->rip += Cpu.opsize;
1322	#ifdef EM_NOTIFY_HWACCM
1323	if (pVM->em.s.enmState == EMSTATE_DEBUG_GUEST_HWACC)
1324	HWACCMR3NotifyEmulated(VMMGetCpu(pVM));
1325	#endif
1326	STAM_PROFILE_STOP(&pVM->em.s.StatMiscEmu, a);
1327	return rc;
1328	}
1329	if (rc != VERR_EM_INTERPRETER)
1330	AssertMsgFailedReturn(("rc=%Rrc\n", rc), rc);
1331	STAM_PROFILE_STOP(&pVM->em.s.StatMiscEmu, a);
1332	break;
1333	}
1334	}
1335	#endif /* 0 */
1336	STAM_PROFILE_START(&pVM->em.s.StatREMEmu, a);
1337	Log(("EMINS: %04x:%RGv RSP=%RGv\n", pCtx->cs, (RTGCPTR)pCtx->rip, (RTGCPTR)pCtx->rsp));
1338	rc = REMR3EmulateInstruction(pVM);
1339	STAM_PROFILE_STOP(&pVM->em.s.StatREMEmu, a);
1340
1341	#ifdef EM_NOTIFY_HWACCM
1342	if (pVM->em.s.enmState == EMSTATE_DEBUG_GUEST_HWACC)
1343	HWACCMR3NotifyEmulated(VMMGetCpu(pVM));
1344	#endif
1345	return rc;
1346	}
1347
1348
1349	/**
1350	* Executes one (or perhaps a few more) instruction(s).
1351	* This is just a wrapper for discarding pszPrefix in non-logging builds.
1352	*
1353	* @returns VBox status code suitable for EM.
1354	* @param pVM VM handle.
1355	* @param pszPrefix Disassembly prefix. If not NULL we'll disassemble the
1356	* instruction and prefix the log output with this text.
1357	* @param rcGC GC return code
1358	*/
1359	DECLINLINE(int) emR3RawExecuteInstruction(PVM pVM, const char *pszPrefix, int rcGC)
1360	{
1361	#ifdef LOG_ENABLED
1362	return emR3RawExecuteInstructionWorker(pVM, rcGC, pszPrefix);
1363	#else
1364	return emR3RawExecuteInstructionWorker(pVM, rcGC);
1365	#endif
1366	}
1367
1368	/**
1369	* Executes one (or perhaps a few more) IO instruction(s).
1370	*
1371	* @returns VBox status code suitable for EM.
1372	* @param pVM VM handle.
1373	*/
1374	int emR3RawExecuteIOInstruction(PVM pVM)
1375	{
1376	int rc;
1377	PCPUMCTX pCtx = pVM->em.s.pCtx;
1378
1379	STAM_PROFILE_START(&pVM->em.s.StatIOEmu, a);
1380
1381	/** @todo probably we should fall back to the recompiler; otherwise we'll go back and forth between HC & GC
1382	* as io instructions tend to come in packages of more than one
1383	*/
1384	DISCPUSTATE Cpu;
1385	rc = CPUMR3DisasmInstrCPU(pVM, pCtx, pCtx->rip, &Cpu, "IO EMU");
1386	if (RT_SUCCESS(rc))
1387	{
1388	rc = VINF_EM_RAW_EMULATE_INSTR;
1389
1390	if (!(Cpu.prefix & (PREFIX_REP \| PREFIX_REPNE)))
1391	{
1392	switch (Cpu.pCurInstr->opcode)
1393	{
1394	case OP_IN:
1395	{
1396	STAM_COUNTER_INC(&pVM->em.s.CTX_SUFF(pStats)->StatIn);
1397	rc = IOMInterpretIN(pVM, CPUMCTX2CORE(pCtx), &Cpu);
1398	break;
1399	}
1400
1401	case OP_OUT:
1402	{
1403	STAM_COUNTER_INC(&pVM->em.s.CTX_SUFF(pStats)->StatOut);
1404	rc = IOMInterpretOUT(pVM, CPUMCTX2CORE(pCtx), &Cpu);
1405	break;
1406	}
1407	}
1408	}
1409	else if (Cpu.prefix & PREFIX_REP)
1410	{
1411	switch (Cpu.pCurInstr->opcode)
1412	{
1413	case OP_INSB:
1414	case OP_INSWD:
1415	{
1416	STAM_COUNTER_INC(&pVM->em.s.CTX_SUFF(pStats)->StatIn);
1417	rc = IOMInterpretINS(pVM, CPUMCTX2CORE(pCtx), &Cpu);
1418	break;
1419	}
1420
1421	case OP_OUTSB:
1422	case OP_OUTSWD:
1423	{
1424	STAM_COUNTER_INC(&pVM->em.s.CTX_SUFF(pStats)->StatOut);
1425	rc = IOMInterpretOUTS(pVM, CPUMCTX2CORE(pCtx), &Cpu);
1426	break;
1427	}
1428	}
1429	}
1430
1431	/*
1432	* Handled the I/O return codes.
1433	* (The unhandled cases end up with rc == VINF_EM_RAW_EMULATE_INSTR.)
1434	*/
1435	if (IOM_SUCCESS(rc))
1436	{
1437	pCtx->rip += Cpu.opsize;
1438	STAM_PROFILE_STOP(&pVM->em.s.StatIOEmu, a);
1439	return rc;
1440	}
1441
1442	if (rc == VINF_EM_RAW_GUEST_TRAP)
1443	{
1444	STAM_PROFILE_STOP(&pVM->em.s.StatIOEmu, a);
1445	rc = emR3RawGuestTrap(pVM);
1446	return rc;
1447	}
1448	AssertMsg(rc != VINF_TRPM_XCPT_DISPATCHED, ("Handle VINF_TRPM_XCPT_DISPATCHED\n"));
1449
1450	if (RT_FAILURE(rc))
1451	{
1452	STAM_PROFILE_STOP(&pVM->em.s.StatIOEmu, a);
1453	return rc;
1454	}
1455	AssertMsg(rc == VINF_EM_RAW_EMULATE_INSTR \|\| rc == VINF_EM_RESCHEDULE_REM, ("rc=%Rrc\n", rc));
1456	}
1457	STAM_PROFILE_STOP(&pVM->em.s.StatIOEmu, a);
1458	return emR3RawExecuteInstruction(pVM, "IO: ");
1459	}
1460
1461
1462	/**
1463	* Handle a guest context trap.
1464	*
1465	* @returns VBox status code suitable for EM.
1466	* @param pVM VM handle.
1467	*/
1468	static int emR3RawGuestTrap(PVM pVM)
1469	{
1470	PCPUMCTX pCtx = pVM->em.s.pCtx;
1471
1472	/*
1473	* Get the trap info.
1474	*/
1475	uint8_t u8TrapNo;
1476	TRPMEVENT enmType;
1477	RTGCUINT uErrorCode;
1478	RTGCUINTPTR uCR2;
1479	int rc = TRPMQueryTrapAll(pVM, &u8TrapNo, &enmType, &uErrorCode, &uCR2);
1480	if (RT_FAILURE(rc))
1481	{
1482	AssertReleaseMsgFailed(("No trap! (rc=%Rrc)\n", rc));
1483	return rc;
1484	}
1485
1486	/*
1487	* Traps can be directly forwarded in hardware accelerated mode.
1488	*/
1489	if (HWACCMR3IsActive(pVM))
1490	{
1491	#ifdef LOGGING_ENABLED
1492	DBGFR3InfoLog(pVM, "cpumguest", "Guest trap");
1493	DBGFR3DisasInstrCurrentLog(pVM, "Guest trap");
1494	#endif
1495	return VINF_EM_RESCHEDULE_HWACC;
1496	}
1497
1498	#if 1 /* Experimental: Review, disable if it causes trouble. */
1499	/*
1500	* Handle traps in patch code first.
1501	*
1502	* We catch a few of these cases in RC before returning to R3 (#PF, #GP, #BP)
1503	* but several traps isn't handled specially by TRPM in RC and we end up here
1504	* instead. One example is #DE.
1505	*/
1506	uint32_t uCpl = CPUMGetGuestCPL(pVM, CPUMCTX2CORE(pCtx));
1507	if ( uCpl == 0
1508	&& PATMIsPatchGCAddr(pVM, (RTGCPTR)pCtx->eip))
1509	{
1510	LogFlow(("emR3RawGuestTrap: trap %#x in patch code; eip=%08x\n", u8TrapNo, pCtx->eip));
1511	return emR3PatchTrap(pVM, pCtx, rc);
1512	}
1513	#endif
1514
1515	/*
1516	* If the guest gate is marked unpatched, then we will check again if we can patch it.
1517	* (This assumes that we've already tried and failed to dispatch the trap in
1518	* RC for the gates that already has been patched. Which is true for most high
1519	* volume traps, because these are handled specially, but not for odd ones like #DE.)
1520	*/
1521	if (TRPMR3GetGuestTrapHandler(pVM, u8TrapNo) == TRPM_INVALID_HANDLER)
1522	{
1523	CSAMR3CheckGates(pVM, u8TrapNo, 1);
1524	Log(("emR3RawHandleRC: recheck gate %x -> valid=%d\n", u8TrapNo, TRPMR3GetGuestTrapHandler(pVM, u8TrapNo) != TRPM_INVALID_HANDLER));
1525
1526	/* If it was successful, then we could go back to raw mode. */
1527	if (TRPMR3GetGuestTrapHandler(pVM, u8TrapNo) != TRPM_INVALID_HANDLER)
1528	{
1529	/* Must check pending forced actions as our IDT or GDT might be out of sync. */
1530	rc = EMR3CheckRawForcedActions(pVM);
1531	AssertRCReturn(rc, rc);
1532
1533	TRPMERRORCODE enmError = uErrorCode != ~0U
1534	? TRPM_TRAP_HAS_ERRORCODE
1535	: TRPM_TRAP_NO_ERRORCODE;
1536	rc = TRPMForwardTrap(pVM, CPUMCTX2CORE(pCtx), u8TrapNo, uErrorCode, enmError, TRPM_TRAP, -1);
1537	if (rc == VINF_SUCCESS /* Don't use RT_SUCCESS */)
1538	{
1539	TRPMResetTrap(pVM);
1540	return VINF_EM_RESCHEDULE_RAW;
1541	}
1542	AssertMsg(rc == VINF_EM_RAW_GUEST_TRAP, ("%Rrc\n", rc));
1543	}
1544	}
1545
1546	/*
1547	* Scan kernel code that traps; we might not get another chance.
1548	*/
1549	/** @todo move this up before the dispatching? */
1550	if ( (pCtx->ss & X86_SEL_RPL) <= 1
1551	&& !pCtx->eflags.Bits.u1VM)
1552	{
1553	Assert(!PATMIsPatchGCAddr(pVM, pCtx->eip));
1554	CSAMR3CheckCodeEx(pVM, CPUMCTX2CORE(pCtx), pCtx->eip);
1555	}
1556
1557	/*
1558	* Trap specific handling.
1559	*/
1560	if (u8TrapNo == 6) /* (#UD) Invalid opcode. */
1561	{
1562	/*
1563	* If MONITOR & MWAIT are supported, then interpret them here.
1564	*/
1565	DISCPUSTATE cpu;
1566	rc = CPUMR3DisasmInstrCPU(pVM, pCtx, pCtx->rip, &cpu, "Guest Trap (#UD): ");
1567	if ( RT_SUCCESS(rc)
1568	&& (cpu.pCurInstr->opcode == OP_MONITOR \|\| cpu.pCurInstr->opcode == OP_MWAIT))
1569	{
1570	uint32_t u32Dummy, u32Features, u32ExtFeatures;
1571	CPUMGetGuestCpuId(pVM, 1, &u32Dummy, &u32Dummy, &u32ExtFeatures, &u32Features);
1572	if (u32ExtFeatures & X86_CPUID_FEATURE_ECX_MONITOR)
1573	{
1574	rc = TRPMResetTrap(pVM);
1575	AssertRC(rc);
1576
1577	uint32_t opsize;
1578	rc = EMInterpretInstructionCPU(pVM, &cpu, CPUMCTX2CORE(pCtx), 0, &opsize);
1579	if (RT_SUCCESS(rc))
1580	{
1581	pCtx->rip += cpu.opsize;
1582	#ifdef EM_NOTIFY_HWACCM
1583	if (pVM->em.s.enmState == EMSTATE_DEBUG_GUEST_HWACC)
1584	HWACCMR3NotifyEmulated(VMMGetCpu(pVM));
1585	#endif
1586	return rc;
1587	}
1588	return emR3RawExecuteInstruction(pVM, "Monitor: ");
1589	}
1590	}
1591	}
1592	else if (u8TrapNo == 13) /* (#GP) Privileged exception */
1593	{
1594	/*
1595	* Handle I/O bitmap?
1596	*/
1597	/** @todo We're not supposed to be here with a false guest trap concerning
1598	* I/O access. We can easily handle those in RC. */
1599	DISCPUSTATE cpu;
1600	rc = CPUMR3DisasmInstrCPU(pVM, pCtx, pCtx->rip, &cpu, "Guest Trap: ");
1601	if ( RT_SUCCESS(rc)
1602	&& (cpu.pCurInstr->optype & OPTYPE_PORTIO))
1603	{
1604	/*
1605	* We should really check the TSS for the IO bitmap, but it's not like this
1606	* lazy approach really makes things worse.
1607	*/
1608	rc = TRPMResetTrap(pVM);
1609	AssertRC(rc);
1610	return emR3RawExecuteInstruction(pVM, "IO Guest Trap: ");
1611	}
1612	}
1613
1614	#ifdef LOG_ENABLED
1615	DBGFR3InfoLog(pVM, "cpumguest", "Guest trap");
1616	DBGFR3DisasInstrCurrentLog(pVM, "Guest trap");
1617
1618	/* Get guest page information. */
1619	uint64_t fFlags = 0;
1620	RTGCPHYS GCPhys = 0;
1621	int rc2 = PGMGstGetPage(pVM, uCR2, &fFlags, &GCPhys);
1622	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",
1623	pCtx->cs, pCtx->eip, u8TrapNo, uErrorCode, uCR2, (uint32_t)pCtx->cr0, (enmType == TRPM_SOFTWARE_INT) ? " software" : "", GCPhys, fFlags,
1624	fFlags & X86_PTE_P ? "P " : "NP", fFlags & X86_PTE_US ? "U" : "S",
1625	fFlags & X86_PTE_RW ? "RW" : "R0", fFlags & X86_PTE_G ? " G" : "", rc2));
1626	#endif
1627
1628	/*
1629	* #PG has CR2.
1630	* (Because of stuff like above we must set CR2 in a delayed fashion.)
1631	*/
1632	if (u8TrapNo == 14 /* #PG */)
1633	pCtx->cr2 = uCR2;
1634
1635	return VINF_EM_RESCHEDULE_REM;
1636	}
1637
1638
1639	/**
1640	* Handle a ring switch trap.
1641	* Need to do statistics and to install patches. The result is going to REM.
1642	*
1643	* @returns VBox status code suitable for EM.
1644	* @param pVM VM handle.
1645	*/
1646	int emR3RawRingSwitch(PVM pVM)
1647	{
1648	int rc;
1649	DISCPUSTATE Cpu;
1650	PCPUMCTX pCtx = pVM->em.s.pCtx;
1651
1652	/*
1653	* sysenter, syscall & callgate
1654	*/
1655	rc = CPUMR3DisasmInstrCPU(pVM, pCtx, pCtx->rip, &Cpu, "RSWITCH: ");
1656	if (RT_SUCCESS(rc))
1657	{
1658	if (Cpu.pCurInstr->opcode == OP_SYSENTER)
1659	{
1660	if (pCtx->SysEnter.cs != 0)
1661	{
1662	rc = PATMR3InstallPatch(pVM, SELMToFlat(pVM, DIS_SELREG_CS, CPUMCTX2CORE(pCtx), pCtx->eip),
1663	(SELMGetCpuModeFromSelector(pVM, pCtx->eflags, pCtx->cs, &pCtx->csHid) == CPUMODE_32BIT) ? PATMFL_CODE32 : 0);
1664	if (RT_SUCCESS(rc))
1665	{
1666	DBGFR3DisasInstrCurrentLog(pVM, "Patched sysenter instruction");
1667	return VINF_EM_RESCHEDULE_RAW;
1668	}
1669	}
1670	}
1671
1672	#ifdef VBOX_WITH_STATISTICS
1673	switch (Cpu.pCurInstr->opcode)
1674	{
1675	case OP_SYSENTER:
1676	STAM_COUNTER_INC(&pVM->em.s.CTX_SUFF(pStats)->StatSysEnter);
1677	break;
1678	case OP_SYSEXIT:
1679	STAM_COUNTER_INC(&pVM->em.s.CTX_SUFF(pStats)->StatSysExit);
1680	break;
1681	case OP_SYSCALL:
1682	STAM_COUNTER_INC(&pVM->em.s.CTX_SUFF(pStats)->StatSysCall);
1683	break;
1684	case OP_SYSRET:
1685	STAM_COUNTER_INC(&pVM->em.s.CTX_SUFF(pStats)->StatSysRet);
1686	break;
1687	}
1688	#endif
1689	}
1690	else
1691	AssertRC(rc);
1692
1693	/* go to the REM to emulate a single instruction */
1694	return emR3RawExecuteInstruction(pVM, "RSWITCH: ");
1695	}
1696
1697
1698	/**
1699	* Handle a trap (\#PF or \#GP) in patch code
1700	*
1701	* @returns VBox status code suitable for EM.
1702	* @param pVM VM handle.
1703	* @param pCtx CPU context
1704	* @param gcret GC return code
1705	*/
1706	static int emR3PatchTrap(PVM pVM, PCPUMCTX pCtx, int gcret)
1707	{
1708	uint8_t u8TrapNo;
1709	int rc;
1710	TRPMEVENT enmType;
1711	RTGCUINT uErrorCode;
1712	RTGCUINTPTR uCR2;
1713
1714	Assert(PATMIsPatchGCAddr(pVM, pCtx->eip));
1715
1716	if (gcret == VINF_PATM_PATCH_INT3)
1717	{
1718	u8TrapNo = 3;
1719	uCR2 = 0;
1720	uErrorCode = 0;
1721	}
1722	else if (gcret == VINF_PATM_PATCH_TRAP_GP)
1723	{
1724	/* No active trap in this case. Kind of ugly. */
1725	u8TrapNo = X86_XCPT_GP;
1726	uCR2 = 0;
1727	uErrorCode = 0;
1728	}
1729	else
1730	{
1731	rc = TRPMQueryTrapAll(pVM, &u8TrapNo, &enmType, &uErrorCode, &uCR2);
1732	if (RT_FAILURE(rc))
1733	{
1734	AssertReleaseMsgFailed(("emR3PatchTrap: no trap! (rc=%Rrc) gcret=%Rrc\n", rc, gcret));
1735	return rc;
1736	}
1737	/* Reset the trap as we'll execute the original instruction again. */
1738	TRPMResetTrap(pVM);
1739	}
1740
1741	/*
1742	* Deal with traps inside patch code.
1743	* (This code won't run outside GC.)
1744	*/
1745	if (u8TrapNo != 1)
1746	{
1747	#ifdef LOG_ENABLED
1748	DBGFR3InfoLog(pVM, "cpumguest", "Trap in patch code");
1749	DBGFR3DisasInstrCurrentLog(pVM, "Patch code");
1750
1751	DISCPUSTATE Cpu;
1752	int rc;
1753
1754	rc = CPUMR3DisasmInstrCPU(pVM, pCtx, pCtx->eip, &Cpu, "Patch code: ");
1755	if ( RT_SUCCESS(rc)
1756	&& Cpu.pCurInstr->opcode == OP_IRET)
1757	{
1758	uint32_t eip, selCS, uEFlags;
1759
1760	/* Iret crashes are bad as we have already changed the flags on the stack */
1761	rc = PGMPhysSimpleReadGCPtr(pVM, &eip, pCtx->esp, 4);
1762	rc \|= PGMPhysSimpleReadGCPtr(pVM, &selCS, pCtx->esp+4, 4);
1763	rc \|= PGMPhysSimpleReadGCPtr(pVM, &uEFlags, pCtx->esp+8, 4);
1764	if (rc == VINF_SUCCESS)
1765	{
1766	if ( (uEFlags & X86_EFL_VM)
1767	\|\| (selCS & X86_SEL_RPL) == 3)
1768	{
1769	uint32_t selSS, esp;
1770
1771	rc \|= PGMPhysSimpleReadGCPtr(pVM, &esp, pCtx->esp + 12, 4);
1772	rc \|= PGMPhysSimpleReadGCPtr(pVM, &selSS, pCtx->esp + 16, 4);
1773
1774	if (uEFlags & X86_EFL_VM)
1775	{
1776	uint32_t selDS, selES, selFS, selGS;
1777	rc = PGMPhysSimpleReadGCPtr(pVM, &selES, pCtx->esp + 20, 4);
1778	rc \|= PGMPhysSimpleReadGCPtr(pVM, &selDS, pCtx->esp + 24, 4);
1779	rc \|= PGMPhysSimpleReadGCPtr(pVM, &selFS, pCtx->esp + 28, 4);
1780	rc \|= PGMPhysSimpleReadGCPtr(pVM, &selGS, pCtx->esp + 32, 4);
1781	if (rc == VINF_SUCCESS)
1782	{
1783	Log(("Patch code: IRET->VM stack frame: return address %04X:%08RX32 eflags=%08x ss:esp=%04X:%08RX32\n", selCS, eip, uEFlags, selSS, esp));
1784	Log(("Patch code: IRET->VM stack frame: DS=%04X ES=%04X FS=%04X GS=%04X\n", selDS, selES, selFS, selGS));
1785	}
1786	}
1787	else
1788	Log(("Patch code: IRET stack frame: return address %04X:%08RX32 eflags=%08x ss:esp=%04X:%08RX32\n", selCS, eip, uEFlags, selSS, esp));
1789	}
1790	else
1791	Log(("Patch code: IRET stack frame: return address %04X:%08RX32 eflags=%08x\n", selCS, eip, uEFlags));
1792	}
1793	}
1794	#endif /* LOG_ENABLED */
1795	Log(("emR3PatchTrap: in patch: eip=%08x: trap=%02x err=%08x cr2=%08x cr0=%08x\n",
1796	pCtx->eip, u8TrapNo, uErrorCode, uCR2, (uint32_t)pCtx->cr0));
1797
1798	RTGCPTR pNewEip;
1799	rc = PATMR3HandleTrap(pVM, pCtx, pCtx->eip, &pNewEip);
1800	switch (rc)
1801	{
1802	/*
1803	* Execute the faulting instruction.
1804	*/
1805	case VINF_SUCCESS:
1806	{
1807	/** @todo execute a whole block */
1808	Log(("emR3PatchTrap: Executing faulting instruction at new address %RGv\n", pNewEip));
1809	if (!(pVM->em.s.pPatmGCState->uVMFlags & X86_EFL_IF))
1810	Log(("emR3PatchTrap: Virtual IF flag disabled!!\n"));
1811
1812	pCtx->eip = pNewEip;
1813	AssertRelease(pCtx->eip);
1814
1815	if (pCtx->eflags.Bits.u1IF)
1816	{
1817	/* Windows XP lets irets fault intentionally and then takes action based on the opcode; an
1818	* int3 patch overwrites it and leads to blue screens. Remove the patch in this case.
1819	*/
1820	if ( u8TrapNo == X86_XCPT_GP
1821	&& PATMIsInt3Patch(pVM, pCtx->eip, NULL, NULL))
1822	{
1823	/** @todo move to PATMR3HandleTrap */
1824	Log(("Possible Windows XP iret fault at %08RX32\n", pCtx->eip));
1825	PATMR3RemovePatch(pVM, pCtx->eip);
1826	}
1827
1828	/** @todo Knoppix 5 regression when returning VINF_SUCCESS here and going back to raw mode. */
1829	/* Note: possibly because a reschedule is required (e.g. iret to V86 code) */
1830
1831	return emR3RawExecuteInstruction(pVM, "PATCHIR");
1832	/* Interrupts are enabled; just go back to the original instruction.
1833	return VINF_SUCCESS; */
1834	}
1835	return VINF_EM_RESCHEDULE_REM;
1836	}
1837
1838	/*
1839	* One instruction.
1840	*/
1841	case VINF_PATCH_EMULATE_INSTR:
1842	Log(("emR3PatchTrap: Emulate patched instruction at %RGv IF=%d VMIF=%x\n",
1843	pNewEip, pCtx->eflags.Bits.u1IF, pVM->em.s.pPatmGCState->uVMFlags));
1844	pCtx->eip = pNewEip;
1845	AssertRelease(pCtx->eip);
1846	return emR3RawExecuteInstruction(pVM, "PATCHEMUL: ");
1847
1848	/*
1849	* The patch was disabled, hand it to the REM.
1850	*/
1851	case VERR_PATCH_DISABLED:
1852	if (!(pVM->em.s.pPatmGCState->uVMFlags & X86_EFL_IF))
1853	Log(("emR3PatchTrap: Virtual IF flag disabled!!\n"));
1854	pCtx->eip = pNewEip;
1855	AssertRelease(pCtx->eip);
1856
1857	if (pCtx->eflags.Bits.u1IF)
1858	{
1859	/*
1860	* The last instruction in the patch block needs to be executed!! (sti/sysexit for example)
1861	*/
1862	Log(("PATCH: IF=1 -> emulate last instruction as it can't be interrupted!!\n"));
1863	return emR3RawExecuteInstruction(pVM, "PATCHIR");
1864	}
1865	return VINF_EM_RESCHEDULE_REM;
1866
1867	/* Force continued patch exection; usually due to write monitored stack. */
1868	case VINF_PATCH_CONTINUE:
1869	return VINF_SUCCESS;
1870
1871	/*
1872	* Anything else is fatal.
1873	*/
1874	default:
1875	AssertReleaseMsgFailed(("Unknown return code %Rrc from PATMR3HandleTrap!\n", rc));
1876	return VERR_INTERNAL_ERROR;
1877	}
1878	}
1879	return VINF_SUCCESS;
1880	}
1881
1882
1883	/**
1884	* Handle a privileged instruction.
1885	*
1886	* @returns VBox status code suitable for EM.
1887	* @param pVM VM handle.
1888	*/
1889	int emR3RawPrivileged(PVM pVM)
1890	{
1891	STAM_PROFILE_START(&pVM->em.s.StatPrivEmu, a);
1892	PCPUMCTX pCtx = pVM->em.s.pCtx;
1893
1894	Assert(!pCtx->eflags.Bits.u1VM);
1895
1896	if (PATMIsEnabled(pVM))
1897	{
1898	/*
1899	* Check if in patch code.
1900	*/
1901	if (PATMR3IsInsidePatchJump(pVM, pCtx->eip, NULL))
1902	{
1903	#ifdef LOG_ENABLED
1904	DBGFR3InfoLog(pVM, "cpumguest", "PRIV");
1905	#endif
1906	AssertMsgFailed(("FATAL ERROR: executing random instruction inside generated patch jump %08X\n", pCtx->eip));
1907	return VERR_EM_RAW_PATCH_CONFLICT;
1908	}
1909	if ( (pCtx->ss & X86_SEL_RPL) == 0
1910	&& !pCtx->eflags.Bits.u1VM
1911	&& !PATMIsPatchGCAddr(pVM, pCtx->eip))
1912	{
1913	int rc = PATMR3InstallPatch(pVM, SELMToFlat(pVM, DIS_SELREG_CS, CPUMCTX2CORE(pCtx), pCtx->eip),
1914	(SELMGetCpuModeFromSelector(pVM, pCtx->eflags, pCtx->cs, &pCtx->csHid) == CPUMODE_32BIT) ? PATMFL_CODE32 : 0);
1915	if (RT_SUCCESS(rc))
1916	{
1917	#ifdef LOG_ENABLED
1918	DBGFR3InfoLog(pVM, "cpumguest", "PRIV");
1919	#endif
1920	DBGFR3DisasInstrCurrentLog(pVM, "Patched privileged instruction");
1921	return VINF_SUCCESS;
1922	}
1923	}
1924	}
1925
1926	#ifdef LOG_ENABLED
1927	if (!PATMIsPatchGCAddr(pVM, pCtx->eip))
1928	{
1929	DBGFR3InfoLog(pVM, "cpumguest", "PRIV");
1930	DBGFR3DisasInstrCurrentLog(pVM, "Privileged instr: ");
1931	}
1932	#endif
1933
1934	/*
1935	* Instruction statistics and logging.
1936	*/
1937	DISCPUSTATE Cpu;
1938	int rc;
1939
1940	rc = CPUMR3DisasmInstrCPU(pVM, pCtx, pCtx->rip, &Cpu, "PRIV: ");
1941	if (RT_SUCCESS(rc))
1942	{
1943	#ifdef VBOX_WITH_STATISTICS
1944	PEMSTATS pStats = pVM->em.s.CTX_SUFF(pStats);
1945	switch (Cpu.pCurInstr->opcode)
1946	{
1947	case OP_INVLPG:
1948	STAM_COUNTER_INC(&pStats->StatInvlpg);
1949	break;
1950	case OP_IRET:
1951	STAM_COUNTER_INC(&pStats->StatIret);
1952	break;
1953	case OP_CLI:
1954	STAM_COUNTER_INC(&pStats->StatCli);
1955	emR3RecordCli(pVM, pCtx->rip);
1956	break;
1957	case OP_STI:
1958	STAM_COUNTER_INC(&pStats->StatSti);
1959	break;
1960	case OP_INSB:
1961	case OP_INSWD:
1962	case OP_IN:
1963	case OP_OUTSB:
1964	case OP_OUTSWD:
1965	case OP_OUT:
1966	AssertMsgFailed(("Unexpected privileged exception due to port IO\n"));
1967	break;
1968
1969	case OP_MOV_CR:
1970	if (Cpu.param1.flags & USE_REG_GEN32)
1971	{
1972	//read
1973	Assert(Cpu.param2.flags & USE_REG_CR);
1974	Assert(Cpu.param2.base.reg_ctrl <= USE_REG_CR4);
1975	STAM_COUNTER_INC(&pStats->StatMovReadCR[Cpu.param2.base.reg_ctrl]);
1976	}
1977	else
1978	{
1979	//write
1980	Assert(Cpu.param1.flags & USE_REG_CR);
1981	Assert(Cpu.param1.base.reg_ctrl <= USE_REG_CR4);
1982	STAM_COUNTER_INC(&pStats->StatMovWriteCR[Cpu.param1.base.reg_ctrl]);
1983	}
1984	break;
1985
1986	case OP_MOV_DR:
1987	STAM_COUNTER_INC(&pStats->StatMovDRx);
1988	break;
1989	case OP_LLDT:
1990	STAM_COUNTER_INC(&pStats->StatMovLldt);
1991	break;
1992	case OP_LIDT:
1993	STAM_COUNTER_INC(&pStats->StatMovLidt);
1994	break;
1995	case OP_LGDT:
1996	STAM_COUNTER_INC(&pStats->StatMovLgdt);
1997	break;
1998	case OP_SYSENTER:
1999	STAM_COUNTER_INC(&pStats->StatSysEnter);
2000	break;
2001	case OP_SYSEXIT:
2002	STAM_COUNTER_INC(&pStats->StatSysExit);
2003	break;
2004	case OP_SYSCALL:
2005	STAM_COUNTER_INC(&pStats->StatSysCall);
2006	break;
2007	case OP_SYSRET:
2008	STAM_COUNTER_INC(&pStats->StatSysRet);
2009	break;
2010	case OP_HLT:
2011	STAM_COUNTER_INC(&pStats->StatHlt);
2012	break;
2013	default:
2014	STAM_COUNTER_INC(&pStats->StatMisc);
2015	Log4(("emR3RawPrivileged: opcode=%d\n", Cpu.pCurInstr->opcode));
2016	break;
2017	}
2018	#endif /* VBOX_WITH_STATISTICS */
2019	if ( (pCtx->ss & X86_SEL_RPL) == 0
2020	&& !pCtx->eflags.Bits.u1VM
2021	&& SELMGetCpuModeFromSelector(pVM, pCtx->eflags, pCtx->cs, &pCtx->csHid) == CPUMODE_32BIT)
2022	{
2023	uint32_t size;
2024
2025	STAM_PROFILE_START(&pVM->em.s.StatPrivEmu, a);
2026	switch (Cpu.pCurInstr->opcode)
2027	{
2028	case OP_CLI:
2029	pCtx->eflags.u32 &= ~X86_EFL_IF;
2030	Assert(Cpu.opsize == 1);
2031	pCtx->rip += Cpu.opsize;
2032	STAM_PROFILE_STOP(&pVM->em.s.StatPrivEmu, a);
2033	return VINF_EM_RESCHEDULE_REM; /* must go to the recompiler now! */
2034
2035	case OP_STI:
2036	pCtx->eflags.u32 \|= X86_EFL_IF;
2037	EMSetInhibitInterruptsPC(pVM, pCtx->rip + Cpu.opsize);
2038	Assert(Cpu.opsize == 1);
2039	pCtx->rip += Cpu.opsize;
2040	STAM_PROFILE_STOP(&pVM->em.s.StatPrivEmu, a);
2041	return VINF_SUCCESS;
2042
2043	case OP_HLT:
2044	if (PATMIsPatchGCAddr(pVM, (RTGCPTR)pCtx->eip))
2045	{
2046	PATMTRANSSTATE enmState;
2047	RTGCPTR pOrgInstrGC = PATMR3PatchToGCPtr(pVM, pCtx->eip, &enmState);
2048
2049	if (enmState == PATMTRANS_OVERWRITTEN)
2050	{
2051	rc = PATMR3DetectConflict(pVM, pOrgInstrGC, pOrgInstrGC);
2052	Assert(rc == VERR_PATCH_DISABLED);
2053	/* Conflict detected, patch disabled */
2054	Log(("emR3RawPrivileged: detected conflict -> disabled patch at %08RX32\n", pCtx->eip));
2055
2056	enmState = PATMTRANS_SAFE;
2057	}
2058
2059	/* The translation had better be successful. Otherwise we can't recover. */
2060	AssertReleaseMsg(pOrgInstrGC && enmState != PATMTRANS_OVERWRITTEN, ("Unable to translate instruction address at %08RX32\n", pCtx->eip));
2061	if (enmState != PATMTRANS_OVERWRITTEN)
2062	pCtx->eip = pOrgInstrGC;
2063	}
2064	/* no break; we could just return VINF_EM_HALT here */
2065
2066	case OP_MOV_CR:
2067	case OP_MOV_DR:
2068	#ifdef LOG_ENABLED
2069	if (PATMIsPatchGCAddr(pVM, pCtx->eip))
2070	{
2071	DBGFR3InfoLog(pVM, "cpumguest", "PRIV");
2072	DBGFR3DisasInstrCurrentLog(pVM, "Privileged instr: ");
2073	}
2074	#endif
2075
2076	rc = EMInterpretInstructionCPU(pVM, &Cpu, CPUMCTX2CORE(pCtx), 0, &size);
2077	if (RT_SUCCESS(rc))
2078	{
2079	pCtx->rip += Cpu.opsize;
2080	#ifdef EM_NOTIFY_HWACCM
2081	if (pVM->em.s.enmState == EMSTATE_DEBUG_GUEST_HWACC)
2082	HWACCMR3NotifyEmulated(VMMGetCpu(pVM));
2083	#endif
2084	STAM_PROFILE_STOP(&pVM->em.s.StatPrivEmu, a);
2085
2086	if ( Cpu.pCurInstr->opcode == OP_MOV_CR
2087	&& Cpu.param1.flags == USE_REG_CR /* write */
2088	)
2089	{
2090	/* Deal with CR0 updates inside patch code that force
2091	* us to go to the recompiler.
2092	*/
2093	if ( PATMIsPatchGCAddr(pVM, pCtx->rip)
2094	&& (pCtx->cr0 & (X86_CR0_WP\|X86_CR0_PG\|X86_CR0_PE)) != (X86_CR0_WP\|X86_CR0_PG\|X86_CR0_PE))
2095	{
2096	PATMTRANSSTATE enmState;
2097	RTGCPTR pOrgInstrGC = PATMR3PatchToGCPtr(pVM, pCtx->rip, &enmState);
2098
2099	Log(("Force recompiler switch due to cr0 (%RGp) update rip=%RGv -> %RGv (enmState=%d)\n", pCtx->cr0, pCtx->rip, pOrgInstrGC, enmState));
2100	if (enmState == PATMTRANS_OVERWRITTEN)
2101	{
2102	rc = PATMR3DetectConflict(pVM, pOrgInstrGC, pOrgInstrGC);
2103	Assert(rc == VERR_PATCH_DISABLED);
2104	/* Conflict detected, patch disabled */
2105	Log(("emR3RawPrivileged: detected conflict -> disabled patch at %RGv\n", (RTGCPTR)pCtx->rip));
2106	enmState = PATMTRANS_SAFE;
2107	}
2108	/* The translation had better be successful. Otherwise we can't recover. */
2109	AssertReleaseMsg(pOrgInstrGC && enmState != PATMTRANS_OVERWRITTEN, ("Unable to translate instruction address at %RGv\n", (RTGCPTR)pCtx->rip));
2110	if (enmState != PATMTRANS_OVERWRITTEN)
2111	pCtx->rip = pOrgInstrGC;
2112	}
2113
2114	/* Reschedule is necessary as the execution/paging mode might have changed. */
2115	return VINF_EM_RESCHEDULE;
2116	}
2117	return rc; /* can return VINF_EM_HALT as well. */
2118	}
2119	AssertMsgReturn(rc == VERR_EM_INTERPRETER, ("%Rrc\n", rc), rc);
2120	break; /* fall back to the recompiler */
2121	}
2122	STAM_PROFILE_STOP(&pVM->em.s.StatPrivEmu, a);
2123	}
2124	}
2125
2126	if (PATMIsPatchGCAddr(pVM, pCtx->eip))
2127	return emR3PatchTrap(pVM, pCtx, VINF_PATM_PATCH_TRAP_GP);
2128
2129	return emR3RawExecuteInstruction(pVM, "PRIV");
2130	}
2131
2132
2133	/**
2134	* Update the forced rawmode execution modifier.
2135	*
2136	* This function is called when we're returning from the raw-mode loop(s). If we're
2137	* in patch code, it will set a flag forcing execution to be resumed in raw-mode,
2138	* if not in patch code, the flag will be cleared.
2139	*
2140	* We should never interrupt patch code while it's being executed. Cli patches can
2141	* contain big code blocks, but they are always executed with IF=0. Other patches
2142	* replace single instructions and should be atomic.
2143	*
2144	* @returns Updated rc.
2145	*
2146	* @param pVM The VM handle.
2147	* @param pCtx The guest CPU context.
2148	* @param rc The result code.
2149	*/
2150	DECLINLINE(int) emR3RawUpdateForceFlag(PVM pVM, PCPUMCTX pCtx, int rc)
2151	{
2152	if (PATMIsPatchGCAddr(pVM, pCtx->eip)) /** @todo check cs selector base/type */
2153	{
2154	/* ignore reschedule attempts. */
2155	switch (rc)
2156	{
2157	case VINF_EM_RESCHEDULE:
2158	case VINF_EM_RESCHEDULE_REM:
2159	LogFlow(("emR3RawUpdateForceFlag: patch address -> force raw reschedule\n"));
2160	rc = VINF_SUCCESS;
2161	break;
2162	}
2163	pVM->em.s.fForceRAW = true;
2164	}
2165	else
2166	pVM->em.s.fForceRAW = false;
2167	return rc;
2168	}
2169
2170
2171	/**
2172	* Process a subset of the raw-mode return code.
2173	*
2174	* Since we have to share this with raw-mode single stepping, this inline
2175	* function has been created to avoid code duplication.
2176	*
2177	* @returns VINF_SUCCESS if it's ok to continue raw mode.
2178	* @returns VBox status code to return to the EM main loop.
2179	*
2180	* @param pVM The VM handle
2181	* @param rc The return code.
2182	* @param pCtx The guest cpu context.
2183	*/
2184	DECLINLINE(int) emR3RawHandleRC(PVM pVM, PCPUMCTX pCtx, int rc)
2185	{
2186	switch (rc)
2187	{
2188	/*
2189	* Common & simple ones.
2190	*/
2191	case VINF_SUCCESS:
2192	break;
2193	case VINF_EM_RESCHEDULE_RAW:
2194	case VINF_EM_RESCHEDULE_HWACC:
2195	case VINF_EM_RAW_INTERRUPT:
2196	case VINF_EM_RAW_TO_R3:
2197	case VINF_EM_RAW_TIMER_PENDING:
2198	case VINF_EM_PENDING_REQUEST:
2199	rc = VINF_SUCCESS;
2200	break;
2201
2202	/*
2203	* Privileged instruction.
2204	*/
2205	case VINF_EM_RAW_EXCEPTION_PRIVILEGED:
2206	case VINF_PATM_PATCH_TRAP_GP:
2207	rc = emR3RawPrivileged(pVM);
2208	break;
2209
2210	/*
2211	* Got a trap which needs dispatching.
2212	*/
2213	case VINF_EM_RAW_GUEST_TRAP:
2214	if (PATMR3IsInsidePatchJump(pVM, pCtx->eip, NULL))
2215	{
2216	AssertReleaseMsgFailed(("FATAL ERROR: executing random instruction inside generated patch jump %08X\n", CPUMGetGuestEIP(pVM)));
2217	rc = VERR_EM_RAW_PATCH_CONFLICT;
2218	break;
2219	}
2220	rc = emR3RawGuestTrap(pVM);
2221	break;
2222
2223	/*
2224	* Trap in patch code.
2225	*/
2226	case VINF_PATM_PATCH_TRAP_PF:
2227	case VINF_PATM_PATCH_INT3:
2228	rc = emR3PatchTrap(pVM, pCtx, rc);
2229	break;
2230
2231	case VINF_PATM_DUPLICATE_FUNCTION:
2232	Assert(PATMIsPatchGCAddr(pVM, (RTGCPTR)pCtx->eip));
2233	rc = PATMR3DuplicateFunctionRequest(pVM, pCtx);
2234	AssertRC(rc);
2235	rc = VINF_SUCCESS;
2236	break;
2237
2238	case VINF_PATM_CHECK_PATCH_PAGE:
2239	rc = PATMR3HandleMonitoredPage(pVM);
2240	AssertRC(rc);
2241	rc = VINF_SUCCESS;
2242	break;
2243
2244	/*
2245	* Patch manager.
2246	*/
2247	case VERR_EM_RAW_PATCH_CONFLICT:
2248	AssertReleaseMsgFailed(("%Rrc handling is not yet implemented\n", rc));
2249	break;
2250
2251	#ifdef VBOX_WITH_VMI
2252	/*
2253	* PARAV function.
2254	*/
2255	case VINF_EM_RESCHEDULE_PARAV:
2256	rc = PARAVCallFunction(pVM);
2257	break;
2258	#endif
2259
2260	/*
2261	* Memory mapped I/O access - attempt to patch the instruction
2262	*/
2263	case VINF_PATM_HC_MMIO_PATCH_READ:
2264	rc = PATMR3InstallPatch(pVM, SELMToFlat(pVM, DIS_SELREG_CS, CPUMCTX2CORE(pCtx), pCtx->eip),
2265	PATMFL_MMIO_ACCESS \| ((SELMGetCpuModeFromSelector(pVM, pCtx->eflags, pCtx->cs, &pCtx->csHid) == CPUMODE_32BIT) ? PATMFL_CODE32 : 0));
2266	if (RT_FAILURE(rc))
2267	rc = emR3RawExecuteInstruction(pVM, "MMIO");
2268	break;
2269
2270	case VINF_PATM_HC_MMIO_PATCH_WRITE:
2271	AssertFailed(); /* not yet implemented. */
2272	rc = emR3RawExecuteInstruction(pVM, "MMIO");
2273	break;
2274
2275	/*
2276	* Conflict or out of page tables.
2277	*
2278	* VM_FF_PGM_SYNC_CR3 is set by the hypervisor and all we need to
2279	* do here is to execute the pending forced actions.
2280	*/
2281	case VINF_PGM_SYNC_CR3:
2282	AssertMsg(VM_FF_ISPENDING(pVM, VM_FF_PGM_SYNC_CR3 \| VM_FF_PGM_SYNC_CR3_NON_GLOBAL),
2283	("VINF_PGM_SYNC_CR3 and no VM_FF_PGM_SYNC_CR3*!\n"));
2284	rc = VINF_SUCCESS;
2285	break;
2286
2287	/*
2288	* Paging mode change.
2289	*/
2290	case VINF_PGM_CHANGE_MODE:
2291	rc = PGMChangeMode(pVM, pCtx->cr0, pCtx->cr4, pCtx->msrEFER);
2292	if (RT_SUCCESS(rc))
2293	rc = VINF_EM_RESCHEDULE;
2294	break;
2295
2296	/*
2297	* CSAM wants to perform a task in ring-3. It has set an FF action flag.
2298	*/
2299	case VINF_CSAM_PENDING_ACTION:
2300	rc = VINF_SUCCESS;
2301	break;
2302
2303	/*
2304	* Invoked Interrupt gate - must directly (!) go to the recompiler.
2305	*/
2306	case VINF_EM_RAW_INTERRUPT_PENDING:
2307	case VINF_EM_RAW_RING_SWITCH_INT:
2308	Assert(TRPMHasTrap(pVM));
2309	Assert(!PATMIsPatchGCAddr(pVM, (RTGCPTR)pCtx->eip));
2310
2311	if (TRPMHasTrap(pVM))
2312	{
2313	/* If the guest gate is marked unpatched, then we will check again if we can patch it. */
2314	uint8_t u8Interrupt = TRPMGetTrapNo(pVM);
2315	if (TRPMR3GetGuestTrapHandler(pVM, u8Interrupt) == TRPM_INVALID_HANDLER)
2316	{
2317	CSAMR3CheckGates(pVM, u8Interrupt, 1);
2318	Log(("emR3RawHandleRC: recheck gate %x -> valid=%d\n", u8Interrupt, TRPMR3GetGuestTrapHandler(pVM, u8Interrupt) != TRPM_INVALID_HANDLER));
2319	/* Note: If it was successful, then we could go back to raw mode, but let's keep things simple for now. */
2320	}
2321	}
2322	rc = VINF_EM_RESCHEDULE_REM;
2323	break;
2324
2325	/*
2326	* Other ring switch types.
2327	*/
2328	case VINF_EM_RAW_RING_SWITCH:
2329	rc = emR3RawRingSwitch(pVM);
2330	break;
2331
2332	/*
2333	* REMGCNotifyInvalidatePage() failed because of overflow.
2334	*/
2335	case VERR_REM_FLUSHED_PAGES_OVERFLOW:
2336	Assert((pCtx->ss & X86_SEL_RPL) != 1);
2337	REMR3ReplayInvalidatedPages(pVM);
2338	rc = VINF_SUCCESS;
2339	break;
2340
2341	/*
2342	* I/O Port access - emulate the instruction.
2343	*/
2344	case VINF_IOM_HC_IOPORT_READ:
2345	case VINF_IOM_HC_IOPORT_WRITE:
2346	rc = emR3RawExecuteIOInstruction(pVM);
2347	break;
2348
2349	/*
2350	* Memory mapped I/O access - emulate the instruction.
2351	*/
2352	case VINF_IOM_HC_MMIO_READ:
2353	case VINF_IOM_HC_MMIO_WRITE:
2354	case VINF_IOM_HC_MMIO_READ_WRITE:
2355	rc = emR3RawExecuteInstruction(pVM, "MMIO");
2356	break;
2357
2358	/*
2359	* (MM)IO intensive code block detected; fall back to the recompiler for better performance
2360	*/
2361	case VINF_EM_RAW_EMULATE_IO_BLOCK:
2362	rc =HWACCMR3EmulateIoBlock(pVM, pCtx);
2363	break;
2364
2365	/*
2366	* Execute instruction.
2367	*/
2368	case VINF_EM_RAW_EMULATE_INSTR_LDT_FAULT:
2369	rc = emR3RawExecuteInstruction(pVM, "LDT FAULT: ");
2370	break;
2371	case VINF_EM_RAW_EMULATE_INSTR_GDT_FAULT:
2372	rc = emR3RawExecuteInstruction(pVM, "GDT FAULT: ");
2373	break;
2374	case VINF_EM_RAW_EMULATE_INSTR_IDT_FAULT:
2375	rc = emR3RawExecuteInstruction(pVM, "IDT FAULT: ");
2376	break;
2377	case VINF_EM_RAW_EMULATE_INSTR_TSS_FAULT:
2378	rc = emR3RawExecuteInstruction(pVM, "TSS FAULT: ");
2379	break;
2380	case VINF_EM_RAW_EMULATE_INSTR_PD_FAULT:
2381	rc = emR3RawExecuteInstruction(pVM, "PD FAULT: ");
2382	break;
2383
2384	case VINF_EM_RAW_EMULATE_INSTR_HLT:
2385	/** @todo skip instruction and go directly to the halt state. (see REM for implementation details) */
2386	rc = emR3RawPrivileged(pVM);
2387	break;
2388
2389	case VINF_PATM_PENDING_IRQ_AFTER_IRET:
2390	rc = emR3RawExecuteInstruction(pVM, "EMUL: ", VINF_PATM_PENDING_IRQ_AFTER_IRET);
2391	break;
2392
2393	case VINF_EM_RAW_EMULATE_INSTR:
2394	case VINF_PATCH_EMULATE_INSTR:
2395	rc = emR3RawExecuteInstruction(pVM, "EMUL: ");
2396	break;
2397
2398	/*
2399	* Stale selector and iret traps => REM.
2400	*/
2401	case VINF_EM_RAW_STALE_SELECTOR:
2402	case VINF_EM_RAW_IRET_TRAP:
2403	/* We will not go to the recompiler if EIP points to patch code. */
2404	if (PATMIsPatchGCAddr(pVM, pCtx->eip))
2405	{
2406	pCtx->eip = PATMR3PatchToGCPtr(pVM, (RTGCPTR)pCtx->eip, 0);
2407	}
2408	LogFlow(("emR3RawHandleRC: %Rrc -> %Rrc\n", rc, VINF_EM_RESCHEDULE_REM));
2409	rc = VINF_EM_RESCHEDULE_REM;
2410	break;
2411
2412	/*
2413	* Up a level.
2414	*/
2415	case VINF_EM_TERMINATE:
2416	case VINF_EM_OFF:
2417	case VINF_EM_RESET:
2418	case VINF_EM_SUSPEND:
2419	case VINF_EM_HALT:
2420	case VINF_EM_RESUME:
2421	case VINF_EM_RESCHEDULE:
2422	case VINF_EM_RESCHEDULE_REM:
2423	break;
2424
2425	/*
2426	* Up a level and invoke the debugger.
2427	*/
2428	case VINF_EM_DBG_STEPPED:
2429	case VINF_EM_DBG_BREAKPOINT:
2430	case VINF_EM_DBG_STEP:
2431	case VINF_EM_DBG_HYPER_BREAKPOINT:
2432	case VINF_EM_DBG_HYPER_STEPPED:
2433	case VINF_EM_DBG_HYPER_ASSERTION:
2434	case VINF_EM_DBG_STOP:
2435	break;
2436
2437	/*
2438	* Up a level, dump and debug.
2439	*/
2440	case VERR_TRPM_DONT_PANIC:
2441	case VERR_TRPM_PANIC:
2442	case VERR_VMM_RING0_ASSERTION:
2443	break;
2444
2445	/*
2446	* Up a level, after HwAccM have done some release logging.
2447	*/
2448	case VERR_VMX_INVALID_VMCS_FIELD:
2449	case VERR_VMX_INVALID_VMCS_PTR:
2450	case VERR_VMX_INVALID_VMXON_PTR:
2451	case VERR_VMX_UNEXPECTED_INTERRUPTION_EXIT_CODE:
2452	case VERR_VMX_UNEXPECTED_EXCEPTION:
2453	case VERR_VMX_UNEXPECTED_EXIT_CODE:
2454	case VERR_VMX_INVALID_GUEST_STATE:
2455	case VERR_VMX_UNABLE_TO_START_VM:
2456	case VERR_VMX_UNABLE_TO_RESUME_VM:
2457	HWACCMR3CheckError(pVM, rc);
2458	break;
2459	/*
2460	* Anything which is not known to us means an internal error
2461	* and the termination of the VM!
2462	*/
2463	default:
2464	AssertMsgFailed(("Unknown GC return code: %Rra\n", rc));
2465	break;
2466	}
2467	return rc;
2468	}
2469
2470
2471	/**
2472	* Check for pending raw actions
2473	*
2474	* @returns VBox status code.
2475	* @param pVM The VM to operate on.
2476	*/
2477	VMMR3DECL(int) EMR3CheckRawForcedActions(PVM pVM)
2478	{
2479	return emR3RawForcedActions(pVM, pVM->em.s.pCtx);
2480	}
2481
2482
2483	/**
2484	* Process raw-mode specific forced actions.
2485	*
2486	* This function is called when any FFs in the VM_FF_HIGH_PRIORITY_PRE_RAW_MASK is pending.
2487	*
2488	* @returns VBox status code.
2489	* Only the normal success/failure stuff, no VINF_EM_*.
2490	* @param pVM The VM handle.
2491	* @param pCtx The guest CPUM register context.
2492	*/
2493	static int emR3RawForcedActions(PVM pVM, PCPUMCTX pCtx)
2494	{
2495	/*
2496	* Note that the order is vitally important!
2497	* Also note that SELMR3UpdateFromCPUM may trigger VM_FF_SELM_SYNC_TSS.
2498	*/
2499
2500
2501	/*
2502	* Sync selector tables.
2503	*/
2504	if (VM_FF_ISPENDING(pVM, VM_FF_SELM_SYNC_GDT \| VM_FF_SELM_SYNC_LDT))
2505	{
2506	int rc = SELMR3UpdateFromCPUM(pVM);
2507	if (RT_FAILURE(rc))
2508	return rc;
2509	}
2510
2511	/*
2512	* Sync IDT.
2513	*/
2514	if (VM_FF_ISSET(pVM, VM_FF_TRPM_SYNC_IDT))
2515	{
2516	int rc = TRPMR3SyncIDT(pVM);
2517	if (RT_FAILURE(rc))
2518	return rc;
2519	}
2520
2521	/*
2522	* Sync TSS.
2523	*/
2524	if (VM_FF_ISSET(pVM, VM_FF_SELM_SYNC_TSS))
2525	{
2526	int rc = SELMR3SyncTSS(pVM);
2527	if (RT_FAILURE(rc))
2528	return rc;
2529	}
2530
2531	/*
2532	* Sync page directory.
2533	*/
2534	if (VM_FF_ISPENDING(pVM, VM_FF_PGM_SYNC_CR3 \| VM_FF_PGM_SYNC_CR3_NON_GLOBAL))
2535	{
2536	int rc = PGMSyncCR3(pVM, pCtx->cr0, pCtx->cr3, pCtx->cr4, VM_FF_ISSET(pVM, VM_FF_PGM_SYNC_CR3));
2537	if (RT_FAILURE(rc))
2538	return rc;
2539
2540	Assert(!VM_FF_ISPENDING(pVM, VM_FF_SELM_SYNC_GDT \| VM_FF_SELM_SYNC_LDT));
2541
2542	/* Prefetch pages for EIP and ESP */
2543	/** @todo This is rather expensive. Should investigate if it really helps at all. */
2544	rc = PGMPrefetchPage(pVM, SELMToFlat(pVM, DIS_SELREG_CS, CPUMCTX2CORE(pCtx), pCtx->rip));
2545	if (rc == VINF_SUCCESS)
2546	rc = PGMPrefetchPage(pVM, SELMToFlat(pVM, DIS_SELREG_SS, CPUMCTX2CORE(pCtx), pCtx->rsp));
2547	if (rc != VINF_SUCCESS)
2548	{
2549	if (rc != VINF_PGM_SYNC_CR3)
2550	return rc;
2551	rc = PGMSyncCR3(pVM, pCtx->cr0, pCtx->cr3, pCtx->cr4, VM_FF_ISSET(pVM, VM_FF_PGM_SYNC_CR3));
2552	if (RT_FAILURE(rc))
2553	return rc;
2554	}
2555	/** @todo maybe prefetch the supervisor stack page as well */
2556	Assert(!VM_FF_ISPENDING(pVM, VM_FF_SELM_SYNC_GDT \| VM_FF_SELM_SYNC_LDT));
2557	}
2558
2559	/*
2560	* Allocate handy pages (just in case the above actions have consumed some pages).
2561	*/
2562	if (VM_FF_ISSET(pVM, VM_FF_PGM_NEED_HANDY_PAGES))
2563	{
2564	int rc = PGMR3PhysAllocateHandyPages(pVM);
2565	if (RT_FAILURE(rc))
2566	return rc;
2567	}
2568
2569	return VINF_SUCCESS;
2570	}
2571
2572
2573	/**
2574	* Executes raw code.
2575	*
2576	* This function contains the raw-mode version of the inner
2577	* execution loop (the outer loop being in EMR3ExecuteVM()).
2578	*
2579	* @returns VBox status code. The most important ones are: VINF_EM_RESCHEDULE,
2580	* VINF_EM_RESCHEDULE_REM, VINF_EM_SUSPEND, VINF_EM_RESET and VINF_EM_TERMINATE.
2581	*
2582	* @param pVM VM handle.
2583	* @param pfFFDone Where to store an indicator telling whether or not
2584	* FFs were done before returning.
2585	*/
2586	static int emR3RawExecute(PVM pVM, bool *pfFFDone)
2587	{
2588	STAM_REL_PROFILE_ADV_START(&pVM->em.s.StatRAWTotal, a);
2589
2590	int rc = VERR_INTERNAL_ERROR;
2591	PCPUMCTX pCtx = pVM->em.s.pCtx;
2592	LogFlow(("emR3RawExecute: (cs:eip=%04x:%08x)\n", pCtx->cs, pCtx->eip));
2593	pVM->em.s.fForceRAW = false;
2594	*pfFFDone = false;
2595
2596
2597	/*
2598	*
2599	* Spin till we get a forced action or raw mode status code resulting in
2600	* in anything but VINF_SUCCESS or VINF_EM_RESCHEDULE_RAW.
2601	*
2602	*/
2603	for (;;)
2604	{
2605	STAM_PROFILE_ADV_START(&pVM->em.s.StatRAWEntry, b);
2606
2607	/*
2608	* Check various preconditions.
2609	*/
2610	#ifdef VBOX_STRICT
2611	Assert(REMR3QueryPendingInterrupt(pVM) == REM_NO_PENDING_IRQ);
2612	Assert(pCtx->eflags.Bits.u1VM \|\| (pCtx->ss & X86_SEL_RPL) == 3 \|\| (pCtx->ss & X86_SEL_RPL) == 0);
2613	AssertMsg( (pCtx->eflags.u32 & X86_EFL_IF)
2614	\|\| PATMShouldUseRawMode(pVM, (RTGCPTR)pCtx->eip),
2615	("Tried to execute code with IF at EIP=%08x!\n", pCtx->eip));
2616	if ( !VM_FF_ISPENDING(pVM, VM_FF_PGM_SYNC_CR3 \| VM_FF_PGM_SYNC_CR3_NON_GLOBAL)
2617	&& PGMMapHasConflicts(pVM))
2618	{
2619	PGMMapCheck(pVM);
2620	AssertMsgFailed(("We should not get conflicts any longer!!!\n"));
2621	return VERR_INTERNAL_ERROR;
2622	}
2623	#endif /* VBOX_STRICT */
2624
2625	/*
2626	* Process high priority pre-execution raw-mode FFs.
2627	*/
2628	if (VM_FF_ISPENDING(pVM, VM_FF_HIGH_PRIORITY_PRE_RAW_MASK))
2629	{
2630	rc = emR3RawForcedActions(pVM, pCtx);
2631	if (RT_FAILURE(rc))
2632	break;
2633	}
2634
2635	/*
2636	* If we're going to execute ring-0 code, the guest state needs to
2637	* be modified a bit and some of the state components (IF, SS/CS RPL,
2638	* and perhaps EIP) needs to be stored with PATM.
2639	*/
2640	rc = CPUMRawEnter(pVM, NULL);
2641	if (rc != VINF_SUCCESS)
2642	{
2643	STAM_PROFILE_ADV_STOP(&pVM->em.s.StatRAWEntry, b);
2644	break;
2645	}
2646
2647	/*
2648	* Scan code before executing it. Don't bother with user mode or V86 code
2649	*/
2650	if ( (pCtx->ss & X86_SEL_RPL) <= 1
2651	&& !pCtx->eflags.Bits.u1VM
2652	&& !PATMIsPatchGCAddr(pVM, pCtx->eip))
2653	{
2654	STAM_PROFILE_ADV_SUSPEND(&pVM->em.s.StatRAWEntry, b);
2655	CSAMR3CheckCodeEx(pVM, CPUMCTX2CORE(pCtx), pCtx->eip);
2656	STAM_PROFILE_ADV_RESUME(&pVM->em.s.StatRAWEntry, b);
2657	if (VM_FF_ISPENDING(pVM, VM_FF_HIGH_PRIORITY_PRE_RAW_MASK))
2658	{
2659	rc = emR3RawForcedActions(pVM, pCtx);
2660	if (RT_FAILURE(rc))
2661	break;
2662	}
2663	}
2664
2665	#ifdef LOG_ENABLED
2666	/*
2667	* Log important stuff before entering GC.
2668	*/
2669	PPATMGCSTATE pGCState = PATMR3QueryGCStateHC(pVM);
2670	if (pCtx->eflags.Bits.u1VM)
2671	Log(("RV86: %04X:%08X IF=%d VMFlags=%x\n", pCtx->cs, pCtx->eip, pCtx->eflags.Bits.u1IF, pGCState->uVMFlags));
2672	else if ((pCtx->ss & X86_SEL_RPL) == 1)
2673	{
2674	bool fCSAMScanned = CSAMIsPageScanned(pVM, (RTGCPTR)pCtx->eip);
2675	Log(("RR0: %08X ESP=%08X IF=%d VMFlags=%x PIF=%d CPL=%d (Scanned=%d)\n", pCtx->eip, pCtx->esp, pCtx->eflags.Bits.u1IF, pGCState->uVMFlags, pGCState->fPIF, (pCtx->ss & X86_SEL_RPL), fCSAMScanned));
2676	}
2677	else if ((pCtx->ss & X86_SEL_RPL) == 3)
2678	Log(("RR3: %08X ESP=%08X IF=%d VMFlags=%x\n", pCtx->eip, pCtx->esp, pCtx->eflags.Bits.u1IF, pGCState->uVMFlags));
2679	#endif /* LOG_ENABLED */
2680
2681
2682
2683	/*
2684	* Execute the code.
2685	*/
2686	STAM_PROFILE_ADV_STOP(&pVM->em.s.StatRAWEntry, b);
2687	STAM_PROFILE_START(&pVM->em.s.StatRAWExec, c);
2688	VMMR3Unlock(pVM);
2689	rc = VMMR3RawRunGC(pVM);
2690	VMMR3Lock(pVM);
2691	STAM_PROFILE_STOP(&pVM->em.s.StatRAWExec, c);
2692	STAM_PROFILE_ADV_START(&pVM->em.s.StatRAWTail, d);
2693
2694	LogFlow(("RR0-E: %08X ESP=%08X IF=%d VMFlags=%x PIF=%d CPL=%d\n", pCtx->eip, pCtx->esp, pCtx->eflags.Bits.u1IF, pGCState->uVMFlags, pGCState->fPIF, (pCtx->ss & X86_SEL_RPL)));
2695	LogFlow(("VMMR3RawRunGC returned %Rrc\n", rc));
2696
2697
2698
2699	/*
2700	* Restore the real CPU state and deal with high priority post
2701	* execution FFs before doing anything else.
2702	*/
2703	rc = CPUMRawLeave(pVM, NULL, rc);
2704	VM_FF_CLEAR(pVM, VM_FF_RESUME_GUEST_MASK);
2705	if (VM_FF_ISPENDING(pVM, VM_FF_HIGH_PRIORITY_POST_MASK))
2706	rc = emR3HighPriorityPostForcedActions(pVM, rc);
2707
2708	#ifdef VBOX_STRICT
2709	/*
2710	* Assert TSS consistency & rc vs patch code.
2711	*/
2712	if ( !VM_FF_ISPENDING(pVM, VM_FF_SELM_SYNC_TSS \| VM_FF_SELM_SYNC_GDT) /* GDT implies TSS at the moment. */
2713	&& EMIsRawRing0Enabled(pVM))
2714	SELMR3CheckTSS(pVM);
2715	switch (rc)
2716	{
2717	case VINF_SUCCESS:
2718	case VINF_EM_RAW_INTERRUPT:
2719	case VINF_PATM_PATCH_TRAP_PF:
2720	case VINF_PATM_PATCH_TRAP_GP:
2721	case VINF_PATM_PATCH_INT3:
2722	case VINF_PATM_CHECK_PATCH_PAGE:
2723	case VINF_EM_RAW_EXCEPTION_PRIVILEGED:
2724	case VINF_EM_RAW_GUEST_TRAP:
2725	case VINF_EM_RESCHEDULE_RAW:
2726	break;
2727
2728	default:
2729	if (PATMIsPatchGCAddr(pVM, pCtx->eip) && !(pCtx->eflags.u32 & X86_EFL_TF))
2730	LogIt(NULL, 0, LOG_GROUP_PATM, ("Patch code interrupted at %RRv for reason %Rrc\n", (RTRCPTR)CPUMGetGuestEIP(pVM), rc));
2731	break;
2732	}
2733	/*
2734	* Let's go paranoid!
2735	*/
2736	if ( !VM_FF_ISPENDING(pVM, VM_FF_PGM_SYNC_CR3 \| VM_FF_PGM_SYNC_CR3_NON_GLOBAL)
2737	&& PGMMapHasConflicts(pVM))
2738	{
2739	PGMMapCheck(pVM);
2740	AssertMsgFailed(("We should not get conflicts any longer!!! rc=%Rrc\n", rc));
2741	return VERR_INTERNAL_ERROR;
2742	}
2743	#endif /* VBOX_STRICT */
2744
2745	/*
2746	* Process the returned status code.
2747	*/
2748	if (rc >= VINF_EM_FIRST && rc <= VINF_EM_LAST)
2749	{
2750	STAM_PROFILE_ADV_STOP(&pVM->em.s.StatRAWTail, d);
2751	break;
2752	}
2753	rc = emR3RawHandleRC(pVM, pCtx, rc);
2754	if (rc != VINF_SUCCESS)
2755	{
2756	rc = emR3RawUpdateForceFlag(pVM, pCtx, rc);
2757	if (rc != VINF_SUCCESS)
2758	{
2759	STAM_PROFILE_ADV_STOP(&pVM->em.s.StatRAWTail, d);
2760	break;
2761	}
2762	}
2763
2764	/*
2765	* Check and execute forced actions.
2766	*/
2767	#ifdef VBOX_HIGH_RES_TIMERS_HACK
2768	TMTimerPoll(pVM);
2769	#endif
2770	STAM_PROFILE_ADV_STOP(&pVM->em.s.StatRAWTail, d);
2771	if (VM_FF_ISPENDING(pVM, ~VM_FF_HIGH_PRIORITY_PRE_RAW_MASK))
2772	{
2773	Assert(pCtx->eflags.Bits.u1VM \|\| (pCtx->ss & X86_SEL_RPL) != 1);
2774
2775	STAM_REL_PROFILE_ADV_SUSPEND(&pVM->em.s.StatRAWTotal, a);
2776	rc = emR3ForcedActions(pVM, rc);
2777	STAM_REL_PROFILE_ADV_RESUME(&pVM->em.s.StatRAWTotal, a);
2778	if ( rc != VINF_SUCCESS
2779	&& rc != VINF_EM_RESCHEDULE_RAW)
2780	{
2781	rc = emR3RawUpdateForceFlag(pVM, pCtx, rc);
2782	if (rc != VINF_SUCCESS)
2783	{
2784	*pfFFDone = true;
2785	break;
2786	}
2787	}
2788	}
2789	}
2790
2791	/*
2792	* Return to outer loop.
2793	*/
2794	#if defined(LOG_ENABLED) && defined(DEBUG)
2795	RTLogFlush(NULL);
2796	#endif
2797	STAM_REL_PROFILE_ADV_STOP(&pVM->em.s.StatRAWTotal, a);
2798	return rc;
2799	}
2800
2801
2802	/**
2803	* Executes hardware accelerated raw code. (Intel VMX & AMD SVM)
2804	*
2805	* This function contains the raw-mode version of the inner
2806	* execution loop (the outer loop being in EMR3ExecuteVM()).
2807	*
2808	* @returns VBox status code. The most important ones are: VINF_EM_RESCHEDULE, VINF_EM_RESCHEDULE_RAW,
2809	* VINF_EM_RESCHEDULE_REM, VINF_EM_SUSPEND, VINF_EM_RESET and VINF_EM_TERMINATE.
2810	*
2811	* @param pVM VM handle.
2812	* @param idCpu VMCPU id.
2813	* @param pfFFDone Where to store an indicator telling whether or not
2814	* FFs were done before returning.
2815	*/
2816	static int emR3HwAccExecute(PVM pVM, RTCPUID idCpu, bool *pfFFDone)
2817	{
2818	int rc = VERR_INTERNAL_ERROR;
2819	PCPUMCTX pCtx = pVM->em.s.pCtx;
2820
2821	LogFlow(("emR3HwAccExecute%d: (cs:eip=%04x:%RGv)\n", idCpu, pCtx->cs, (RTGCPTR)pCtx->rip));
2822	*pfFFDone = false;
2823
2824	STAM_COUNTER_INC(&pVM->em.s.StatHwAccExecuteEntry);
2825
2826	#ifdef EM_NOTIFY_HWACCM
2827	HWACCMR3NotifyScheduled(&pVM->aCpus[idCpu]);
2828	#endif
2829
2830	/*
2831	* Spin till we get a forced action which returns anything but VINF_SUCCESS.
2832	*/
2833	for (;;)
2834	{
2835	STAM_PROFILE_ADV_START(&pVM->em.s.StatHwAccEntry, a);
2836
2837	/*
2838	* Check various preconditions.
2839	*/
2840	VM_FF_CLEAR(pVM, (VM_FF_SELM_SYNC_GDT \| VM_FF_SELM_SYNC_LDT \| VM_FF_TRPM_SYNC_IDT \| VM_FF_SELM_SYNC_TSS));
2841
2842	/*
2843	* Process high priority pre-execution raw-mode FFs.
2844	*/
2845	if (VM_FF_ISPENDING(pVM, VM_FF_HIGH_PRIORITY_PRE_RAW_MASK))
2846	{
2847	rc = emR3RawForcedActions(pVM, pCtx);
2848	if (RT_FAILURE(rc))
2849	break;
2850	}
2851
2852	#ifdef LOG_ENABLED
2853	/*
2854	* Log important stuff before entering GC.
2855	*/
2856	if (TRPMHasTrap(pVM))
2857	Log(("Pending hardware interrupt=0x%x cs:rip=%04X:%RGv\n", TRPMGetTrapNo(pVM), pCtx->cs, (RTGCPTR)pCtx->rip));
2858
2859	uint32_t cpl = CPUMGetGuestCPL(pVM, CPUMCTX2CORE(pCtx));
2860	if (pCtx->eflags.Bits.u1VM)
2861	Log(("HWV86: %08X IF=%d\n", pCtx->eip, pCtx->eflags.Bits.u1IF));
2862	else if (CPUMIsGuestIn64BitCode(pVM, CPUMCTX2CORE(pCtx)))
2863	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));
2864	else
2865	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));
2866	#endif /* LOG_ENABLED */
2867
2868	/*
2869	* Execute the code.
2870	*/
2871	STAM_PROFILE_ADV_STOP(&pVM->em.s.StatHwAccEntry, a);
2872	STAM_PROFILE_START(&pVM->em.s.StatHwAccExec, x);
2873	VMMR3Unlock(pVM);
2874	rc = VMMR3HwAccRunGC(pVM, idCpu);
2875	VMMR3Lock(pVM);
2876	STAM_PROFILE_STOP(&pVM->em.s.StatHwAccExec, x);
2877
2878	/*
2879	* Deal with high priority post execution FFs before doing anything else.
2880	*/
2881	VM_FF_CLEAR(pVM, VM_FF_RESUME_GUEST_MASK);
2882	if (VM_FF_ISPENDING(pVM, VM_FF_HIGH_PRIORITY_POST_MASK))
2883	rc = emR3HighPriorityPostForcedActions(pVM, rc);
2884
2885	/*
2886	* Process the returned status code.
2887	*/
2888	if (rc >= VINF_EM_FIRST && rc <= VINF_EM_LAST)
2889	break;
2890
2891	rc = emR3RawHandleRC(pVM, pCtx, rc);
2892	if (rc != VINF_SUCCESS)
2893	break;
2894
2895	/*
2896	* Check and execute forced actions.
2897	*/
2898	#ifdef VBOX_HIGH_RES_TIMERS_HACK
2899	TMTimerPoll(pVM);
2900	#endif
2901	if (VM_FF_ISPENDING(pVM, VM_FF_ALL_MASK))
2902	{
2903	rc = emR3ForcedActions(pVM, rc);
2904	if ( rc != VINF_SUCCESS
2905	&& rc != VINF_EM_RESCHEDULE_HWACC)
2906	{
2907	*pfFFDone = true;
2908	break;
2909	}
2910	}
2911	}
2912
2913	/*
2914	* Return to outer loop.
2915	*/
2916	#if defined(LOG_ENABLED) && defined(DEBUG)
2917	RTLogFlush(NULL);
2918	#endif
2919	return rc;
2920	}
2921
2922
2923	/**
2924	* Decides whether to execute RAW, HWACC or REM.
2925	*
2926	* @returns new EM state
2927	* @param pVM The VM.
2928	* @param pCtx The CPU context.
2929	*/
2930	static EMSTATE emR3Reschedule(PVM pVM, PCPUMCTX pCtx)
2931	{
2932	/*
2933	* When forcing raw-mode execution, things are simple.
2934	*/
2935	if (pVM->em.s.fForceRAW)
2936	return EMSTATE_RAW;
2937
2938	/* !!! THIS MUST BE IN SYNC WITH remR3CanExecuteRaw !!! */
2939	/* !!! THIS MUST BE IN SYNC WITH remR3CanExecuteRaw !!! */
2940	/* !!! THIS MUST BE IN SYNC WITH remR3CanExecuteRaw !!! */
2941
2942	X86EFLAGS EFlags = pCtx->eflags;
2943	if (HWACCMIsEnabled(pVM))
2944	{
2945	/* Hardware accelerated raw-mode:
2946	*
2947	* Typically only 32-bits protected mode, with paging enabled, code is allowed here.
2948	*/
2949	if (HWACCMR3CanExecuteGuest(pVM, pCtx) == true)
2950	return EMSTATE_HWACC;
2951
2952	/* Note: Raw mode and hw accelerated mode are incompatible. The latter turns
2953	* off monitoring features essential for raw mode! */
2954	return EMSTATE_REM;
2955	}
2956
2957	/*
2958	* Standard raw-mode:
2959	*
2960	* Here we only support 16 & 32 bits protected mode ring 3 code that has no IO privileges
2961	* or 32 bits protected mode ring 0 code
2962	*
2963	* The tests are ordered by the likelyhood of being true during normal execution.
2964	*/
2965	if (EFlags.u32 & (X86_EFL_TF /* \| HF_INHIBIT_IRQ_MASK*/))
2966	{
2967	Log2(("raw mode refused: EFlags=%#x\n", EFlags.u32));
2968	return EMSTATE_REM;
2969	}
2970
2971	#ifndef VBOX_RAW_V86
2972	if (EFlags.u32 & X86_EFL_VM) {
2973	Log2(("raw mode refused: VM_MASK\n"));
2974	return EMSTATE_REM;
2975	}
2976	#endif
2977
2978	/** @todo check up the X86_CR0_AM flag in respect to raw mode!!! We're probably not emulating it right! */
2979	uint32_t u32CR0 = pCtx->cr0;
2980	if ((u32CR0 & (X86_CR0_PG \| X86_CR0_PE)) != (X86_CR0_PG \| X86_CR0_PE))
2981	{
2982	//Log2(("raw mode refused: %s%s%s\n", (u32CR0 & X86_CR0_PG) ? "" : " !PG", (u32CR0 & X86_CR0_PE) ? "" : " !PE", (u32CR0 & X86_CR0_AM) ? "" : " !AM"));
2983	return EMSTATE_REM;
2984	}
2985
2986	if (pCtx->cr4 & X86_CR4_PAE)
2987	{
2988	uint32_t u32Dummy, u32Features;
2989
2990	CPUMGetGuestCpuId(pVM, 1, &u32Dummy, &u32Dummy, &u32Dummy, &u32Features);
2991	if (!(u32Features & X86_CPUID_FEATURE_EDX_PAE))
2992	return EMSTATE_REM;
2993	}
2994
2995	unsigned uSS = pCtx->ss;
2996	if ( pCtx->eflags.Bits.u1VM
2997	\|\| (uSS & X86_SEL_RPL) == 3)
2998	{
2999	if (!EMIsRawRing3Enabled(pVM))
3000	return EMSTATE_REM;
3001
3002	if (!(EFlags.u32 & X86_EFL_IF))
3003	{
3004	Log2(("raw mode refused: IF (RawR3)\n"));
3005	return EMSTATE_REM;
3006	}
3007
3008	if (!(u32CR0 & X86_CR0_WP) && EMIsRawRing0Enabled(pVM))
3009	{
3010	Log2(("raw mode refused: CR0.WP + RawR0\n"));
3011	return EMSTATE_REM;
3012	}
3013	}
3014	else
3015	{
3016	if (!EMIsRawRing0Enabled(pVM))
3017	return EMSTATE_REM;
3018
3019	/* Only ring 0 supervisor code. */
3020	if ((uSS & X86_SEL_RPL) != 0)
3021	{
3022	Log2(("raw r0 mode refused: CPL %d\n", uSS & X86_SEL_RPL));
3023	return EMSTATE_REM;
3024	}
3025
3026	// Let's start with pure 32 bits ring 0 code first
3027	/** @todo What's pure 32-bit mode? flat? */
3028	if ( !(pCtx->ssHid.Attr.n.u1DefBig)
3029	\|\| !(pCtx->csHid.Attr.n.u1DefBig))
3030	{
3031	Log2(("raw r0 mode refused: SS/CS not 32bit\n"));
3032	return EMSTATE_REM;
3033	}
3034
3035	/* Write protection must be turned on, or else the guest can overwrite our hypervisor code and data. */
3036	if (!(u32CR0 & X86_CR0_WP))
3037	{
3038	Log2(("raw r0 mode refused: CR0.WP=0!\n"));
3039	return EMSTATE_REM;
3040	}
3041
3042	if (PATMShouldUseRawMode(pVM, (RTGCPTR)pCtx->eip))
3043	{
3044	Log2(("raw r0 mode forced: patch code\n"));
3045	return EMSTATE_RAW;
3046	}
3047
3048	#if !defined(VBOX_ALLOW_IF0) && !defined(VBOX_RUN_INTERRUPT_GATE_HANDLERS)
3049	if (!(EFlags.u32 & X86_EFL_IF))
3050	{
3051	////Log2(("R0: IF=0 VIF=%d %08X\n", eip, pVMeflags));
3052	//Log2(("RR0: Interrupts turned off; fall back to emulation\n"));
3053	return EMSTATE_REM;
3054	}
3055	#endif
3056
3057	/** @todo still necessary??? */
3058	if (EFlags.Bits.u2IOPL != 0)
3059	{
3060	Log2(("raw r0 mode refused: IOPL %d\n", EFlags.Bits.u2IOPL));
3061	return EMSTATE_REM;
3062	}
3063	}
3064
3065	Assert(PGMPhysIsA20Enabled(pVM));
3066	return EMSTATE_RAW;
3067	}
3068
3069
3070	/**
3071	* Executes all high priority post execution force actions.
3072	*
3073	* @returns rc or a fatal status code.
3074	*
3075	* @param pVM VM handle.
3076	* @param rc The current rc.
3077	*/
3078	static int emR3HighPriorityPostForcedActions(PVM pVM, int rc)
3079	{
3080	if (VM_FF_ISSET(pVM, VM_FF_PDM_CRITSECT))
3081	PDMR3CritSectFF(pVM);
3082
3083	if (VM_FF_ISSET(pVM, VM_FF_CSAM_PENDING_ACTION))
3084	CSAMR3DoPendingAction(pVM);
3085
3086	return rc;
3087	}
3088
3089
3090	/**
3091	* Executes all pending forced actions.
3092	*
3093	* Forced actions can cause execution delays and execution
3094	* rescheduling. The first we deal with using action priority, so
3095	* that for instance pending timers aren't scheduled and ran until
3096	* right before execution. The rescheduling we deal with using
3097	* return codes. The same goes for VM termination, only in that case
3098	* we exit everything.
3099	*
3100	* @returns VBox status code of equal or greater importance/severity than rc.
3101	* The most important ones are: VINF_EM_RESCHEDULE,
3102	* VINF_EM_SUSPEND, VINF_EM_RESET and VINF_EM_TERMINATE.
3103	*
3104	* @param pVM VM handle.
3105	* @param rc The current rc.
3106	*
3107	*/
3108	static int emR3ForcedActions(PVM pVM, int rc)
3109	{
3110	STAM_REL_PROFILE_START(&pVM->em.s.StatForcedActions, a);
3111	#ifdef VBOX_STRICT
3112	int rcIrq = VINF_SUCCESS;
3113	#endif
3114	int rc2;
3115	#define UPDATE_RC() \
3116	do { \
3117	AssertMsg(rc2 <= 0 \|\| (rc2 >= VINF_EM_FIRST && rc2 <= VINF_EM_LAST), ("Invalid FF return code: %Rra\n", rc2)); \
3118	if (rc2 == VINF_SUCCESS \|\| rc < VINF_SUCCESS) \
3119	break; \
3120	if (!rc \|\| rc2 < rc) \
3121	rc = rc2; \
3122	} while (0)
3123
3124	/*
3125	* Post execution chunk first.
3126	*/
3127	if (VM_FF_ISPENDING(pVM, VM_FF_NORMAL_PRIORITY_POST_MASK))
3128	{
3129	/*
3130	* Termination request.
3131	*/
3132	if (VM_FF_ISSET(pVM, VM_FF_TERMINATE))
3133	{
3134	Log2(("emR3ForcedActions: returns VINF_EM_TERMINATE\n"));
3135	STAM_REL_PROFILE_STOP(&pVM->em.s.StatForcedActions, a);
3136	return VINF_EM_TERMINATE;
3137	}
3138
3139	/*
3140	* Debugger Facility polling.
3141	*/
3142	if (VM_FF_ISSET(pVM, VM_FF_DBGF))
3143	{
3144	rc2 = DBGFR3VMMForcedAction(pVM);
3145	UPDATE_RC();
3146	}
3147
3148	/*
3149	* Postponed reset request.
3150	*/
3151	if (VM_FF_ISSET(pVM, VM_FF_RESET))
3152	{
3153	rc2 = VMR3Reset(pVM);
3154	UPDATE_RC();
3155	VM_FF_CLEAR(pVM, VM_FF_RESET);
3156	}
3157
3158	/*
3159	* CSAM page scanning.
3160	*/
3161	if (VM_FF_ISSET(pVM, VM_FF_CSAM_SCAN_PAGE))
3162	{
3163	PCPUMCTX pCtx = pVM->em.s.pCtx;
3164
3165	/** @todo: check for 16 or 32 bits code! (D bit in the code selector) */
3166	Log(("Forced action VM_FF_CSAM_SCAN_PAGE\n"));
3167
3168	CSAMR3CheckCodeEx(pVM, CPUMCTX2CORE(pCtx), pCtx->eip);
3169	VM_FF_CLEAR(pVM, VM_FF_CSAM_SCAN_PAGE);
3170	}
3171
3172	/* check that we got them all */
3173	Assert(!(VM_FF_NORMAL_PRIORITY_POST_MASK & ~(VM_FF_TERMINATE \| VM_FF_DBGF \| VM_FF_RESET \| VM_FF_CSAM_SCAN_PAGE)));
3174	}
3175
3176	/*
3177	* Normal priority then.
3178	* (Executed in no particular order.)
3179	*/
3180	if (VM_FF_ISPENDING(pVM, VM_FF_NORMAL_PRIORITY_MASK))
3181	{
3182	/*
3183	* PDM Queues are pending.
3184	*/
3185	if (VM_FF_ISSET(pVM, VM_FF_PDM_QUEUES))
3186	PDMR3QueueFlushAll(pVM);
3187
3188	/*
3189	* PDM DMA transfers are pending.
3190	*/
3191	if (VM_FF_ISSET(pVM, VM_FF_PDM_DMA))
3192	PDMR3DmaRun(pVM);
3193
3194	/*
3195	* Requests from other threads.
3196	*/
3197	if (VM_FF_ISSET(pVM, VM_FF_REQUEST))
3198	{
3199	rc2 = VMR3ReqProcessU(pVM->pUVM, VMREQDEST_ANY);
3200	if (rc2 == VINF_EM_OFF \|\| rc2 == VINF_EM_TERMINATE)
3201	{
3202	Log2(("emR3ForcedActions: returns %Rrc\n", rc2));
3203	STAM_REL_PROFILE_STOP(&pVM->em.s.StatForcedActions, a);
3204	return rc2;
3205	}
3206	UPDATE_RC();
3207	}
3208
3209	/* Replay the handler notification changes. */
3210	if (VM_FF_ISSET(pVM, VM_FF_REM_HANDLER_NOTIFY))
3211	REMR3ReplayHandlerNotifications(pVM);
3212
3213	/* check that we got them all */
3214	Assert(!(VM_FF_NORMAL_PRIORITY_MASK & ~(VM_FF_REQUEST \| VM_FF_PDM_QUEUES \| VM_FF_PDM_DMA \| VM_FF_REM_HANDLER_NOTIFY)));
3215	}
3216
3217	/*
3218	* Execute polling function ever so often.
3219	* THIS IS A HACK, IT WILL BE REPLACED BY PROPER ASYNC NETWORKING "SOON"!
3220	*/
3221	static unsigned cLast = 0;
3222	if (!((++cLast) % 4))
3223	PDMR3Poll(pVM);
3224
3225	/*
3226	* High priority pre execution chunk last.
3227	* (Executed in ascending priority order.)
3228	*/
3229	if (VM_FF_ISPENDING(pVM, VM_FF_HIGH_PRIORITY_PRE_MASK))
3230	{
3231	/*
3232	* Timers before interrupts.
3233	*/
3234	if (VM_FF_ISSET(pVM, VM_FF_TIMER))
3235	TMR3TimerQueuesDo(pVM);
3236
3237	/*
3238	* The instruction following an emulated STI should always be executed!
3239	*/
3240	if (VM_FF_ISSET(pVM, VM_FF_INHIBIT_INTERRUPTS))
3241	{
3242	Log(("VM_FF_EMULATED_STI at %RGv successor %RGv\n", (RTGCPTR)CPUMGetGuestRIP(pVM), EMGetInhibitInterruptsPC(pVM)));
3243	if (CPUMGetGuestEIP(pVM) != EMGetInhibitInterruptsPC(pVM))
3244	{
3245	/* Note: we intentionally don't clear VM_FF_INHIBIT_INTERRUPTS here if the eip is the same as the inhibited instr address.
3246	* Before we are able to execute this instruction in raw mode (iret to guest code) an external interrupt might
3247	* force a world switch again. Possibly allowing a guest interrupt to be dispatched in the process. This could
3248	* break the guest. Sounds very unlikely, but such timing sensitive problem are not as rare as you might think.
3249	*/
3250	VM_FF_CLEAR(pVM, VM_FF_INHIBIT_INTERRUPTS);
3251	}
3252	if (HWACCMR3IsActive(pVM))
3253	rc2 = VINF_EM_RESCHEDULE_HWACC;
3254	else
3255	rc2 = PATMAreInterruptsEnabled(pVM) ? VINF_EM_RESCHEDULE_RAW : VINF_EM_RESCHEDULE_REM;
3256
3257	UPDATE_RC();
3258	}
3259
3260	/*
3261	* Interrupts.
3262	*/
3263	if ( !VM_FF_ISSET(pVM, VM_FF_INHIBIT_INTERRUPTS)
3264	&& (!rc \|\| rc >= VINF_EM_RESCHEDULE_HWACC)
3265	&& !TRPMHasTrap(pVM) /* an interrupt could already be scheduled for dispatching in the recompiler. */
3266	&& PATMAreInterruptsEnabled(pVM)
3267	&& !HWACCMR3IsEventPending(pVM))
3268	{
3269	if (VM_FF_ISPENDING(pVM, VM_FF_INTERRUPT_APIC \| VM_FF_INTERRUPT_PIC))
3270	{
3271	/* Note: it's important to make sure the return code from TRPMR3InjectEvent isn't ignored! */
3272	/** @todo this really isn't nice, should properly handle this */
3273	rc2 = TRPMR3InjectEvent(pVM, TRPM_HARDWARE_INT);
3274	#ifdef VBOX_STRICT
3275	rcIrq = rc2;
3276	#endif
3277	UPDATE_RC();
3278	}
3279	/** @todo really ugly; if we entered the hlt state when exiting the recompiler and an interrupt was pending, we previously got stuck in the halted state. */
3280	else if (REMR3QueryPendingInterrupt(pVM) != REM_NO_PENDING_IRQ)
3281	{
3282	rc2 = VINF_EM_RESCHEDULE_REM;
3283	UPDATE_RC();
3284	}
3285	}
3286
3287	/*
3288	* Allocate handy pages.
3289	*/
3290	if (VM_FF_ISSET(pVM, VM_FF_PGM_NEED_HANDY_PAGES))
3291	{
3292	rc2 = PGMR3PhysAllocateHandyPages(pVM);
3293	UPDATE_RC();
3294	}
3295
3296	/*
3297	* Debugger Facility request.
3298	*/
3299	if (VM_FF_ISSET(pVM, VM_FF_DBGF))
3300	{
3301	rc2 = DBGFR3VMMForcedAction(pVM);
3302	UPDATE_RC();
3303	}
3304
3305	/*
3306	* Termination request.
3307	*/
3308	if (VM_FF_ISSET(pVM, VM_FF_TERMINATE))
3309	{
3310	Log2(("emR3ForcedActions: returns VINF_EM_TERMINATE\n"));
3311	STAM_REL_PROFILE_STOP(&pVM->em.s.StatForcedActions, a);
3312	return VINF_EM_TERMINATE;
3313	}
3314
3315	#ifdef DEBUG
3316	/*
3317	* Debug, pause the VM.
3318	*/
3319	if (VM_FF_ISSET(pVM, VM_FF_DEBUG_SUSPEND))
3320	{
3321	VM_FF_CLEAR(pVM, VM_FF_DEBUG_SUSPEND);
3322	Log(("emR3ForcedActions: returns VINF_EM_SUSPEND\n"));
3323	return VINF_EM_SUSPEND;
3324	}
3325
3326	#endif
3327	/* check that we got them all */
3328	Assert(!(VM_FF_HIGH_PRIORITY_PRE_MASK & ~(VM_FF_TIMER \| VM_FF_INTERRUPT_APIC \| VM_FF_INTERRUPT_PIC \| VM_FF_DBGF \| VM_FF_PGM_SYNC_CR3 \| VM_FF_PGM_SYNC_CR3_NON_GLOBAL \| VM_FF_SELM_SYNC_TSS \| VM_FF_TRPM_SYNC_IDT \| VM_FF_SELM_SYNC_GDT \| VM_FF_SELM_SYNC_LDT \| VM_FF_TERMINATE \| VM_FF_DEBUG_SUSPEND \| VM_FF_INHIBIT_INTERRUPTS \| VM_FF_PGM_NEED_HANDY_PAGES)));
3329	}
3330
3331	#undef UPDATE_RC
3332	Log2(("emR3ForcedActions: returns %Rrc\n", rc));
3333	STAM_REL_PROFILE_STOP(&pVM->em.s.StatForcedActions, a);
3334	Assert(rcIrq == VINF_SUCCESS \|\| rcIrq == rc);
3335	return rc;
3336	}
3337
3338
3339	/**
3340	* Execute VM.
3341	*
3342	* This function is the main loop of the VM. The emulation thread
3343	* calls this function when the VM has been successfully constructed
3344	* and we're ready for executing the VM.
3345	*
3346	* Returning from this function means that the VM is turned off or
3347	* suspended (state already saved) and deconstruction in next in line.
3348	*
3349	* All interaction from other thread are done using forced actions
3350	* and signaling of the wait object.
3351	*
3352	* @returns VBox status code, informational status codes may indicate failure.
3353	* @param pVM The VM to operate on.
3354	* @param idCpu VMCPU id.
3355	*/
3356	VMMR3DECL(int) EMR3ExecuteVM(PVM pVM, RTCPUID idCpu)
3357	{
3358	LogFlow(("EMR3ExecuteVM: pVM=%p enmVMState=%d enmState=%d (%s) fForceRAW=%d\n", pVM, pVM->enmVMState,
3359	pVM->em.s.enmState, EMR3GetStateName(pVM->em.s.enmState), pVM->em.s.fForceRAW));
3360	VM_ASSERT_EMT(pVM);
3361	Assert(pVM->em.s.enmState == EMSTATE_NONE \|\| pVM->em.s.enmState == EMSTATE_SUSPENDED);
3362
3363	VMMR3Lock(pVM);
3364
3365	int rc = setjmp(pVM->em.s.u.FatalLongJump);
3366	if (rc == 0)
3367	{
3368	/*
3369	* Start the virtual time.
3370	*/
3371	rc = TMVirtualResume(pVM);
3372	Assert(rc == VINF_SUCCESS);
3373	rc = TMCpuTickResume(pVM);
3374	Assert(rc == VINF_SUCCESS);
3375
3376	/*
3377	* The Outer Main Loop.
3378	*/
3379	bool fFFDone = false;
3380
3381	/* Reschedule right away to start in the right state. */
3382	rc = VINF_SUCCESS;
3383	pVM->em.s.enmState = emR3Reschedule(pVM, pVM->em.s.pCtx);
3384
3385	STAM_REL_PROFILE_ADV_START(&pVM->em.s.StatTotal, x);
3386	for (;;)
3387	{
3388	/*
3389	* Before we can schedule anything (we're here because
3390	* scheduling is required) we must service any pending
3391	* forced actions to avoid any pending action causing
3392	* immediate rescheduling upon entering an inner loop
3393	*
3394	* Do forced actions.
3395	*/
3396	if ( !fFFDone
3397	&& rc != VINF_EM_TERMINATE
3398	&& rc != VINF_EM_OFF
3399	&& VM_FF_ISPENDING(pVM, VM_FF_ALL_BUT_RAW_MASK))
3400	{
3401	rc = emR3ForcedActions(pVM, rc);
3402	if ( ( rc == VINF_EM_RESCHEDULE_REM
3403	\|\| rc == VINF_EM_RESCHEDULE_HWACC)
3404	&& pVM->em.s.fForceRAW)
3405	rc = VINF_EM_RESCHEDULE_RAW;
3406	}
3407	else if (fFFDone)
3408	fFFDone = false;
3409
3410	/*
3411	* Now what to do?
3412	*/
3413	Log2(("EMR3ExecuteVM: rc=%Rrc\n", rc));
3414	switch (rc)
3415	{
3416	/*
3417	* Keep doing what we're currently doing.
3418	*/
3419	case VINF_SUCCESS:
3420	break;
3421
3422	/*
3423	* Reschedule - to raw-mode execution.
3424	*/
3425	case VINF_EM_RESCHEDULE_RAW:
3426	Log2(("EMR3ExecuteVM: VINF_EM_RESCHEDULE_RAW: %d -> %d (EMSTATE_RAW)\n", pVM->em.s.enmState, EMSTATE_RAW));
3427	pVM->em.s.enmState = EMSTATE_RAW;
3428	break;
3429
3430	/*
3431	* Reschedule - to hardware accelerated raw-mode execution.
3432	*/
3433	case VINF_EM_RESCHEDULE_HWACC:
3434	Log2(("EMR3ExecuteVM: VINF_EM_RESCHEDULE_HWACC: %d -> %d (EMSTATE_HWACC)\n", pVM->em.s.enmState, EMSTATE_HWACC));
3435	Assert(!pVM->em.s.fForceRAW);
3436	pVM->em.s.enmState = EMSTATE_HWACC;
3437	break;
3438
3439	/*
3440	* Reschedule - to recompiled execution.
3441	*/
3442	case VINF_EM_RESCHEDULE_REM:
3443	Log2(("EMR3ExecuteVM: VINF_EM_RESCHEDULE_REM: %d -> %d (EMSTATE_REM)\n", pVM->em.s.enmState, EMSTATE_REM));
3444	pVM->em.s.enmState = EMSTATE_REM;
3445	break;
3446
3447	#ifdef VBOX_WITH_VMI
3448	/*
3449	* Reschedule - parav call.
3450	*/
3451	case VINF_EM_RESCHEDULE_PARAV:
3452	Log2(("EMR3ExecuteVM: VINF_EM_RESCHEDULE_PARAV: %d -> %d (EMSTATE_PARAV)\n", pVM->em.s.enmState, EMSTATE_PARAV));
3453	pVM->em.s.enmState = EMSTATE_PARAV;
3454	break;
3455	#endif
3456
3457	/*
3458	* Resume.
3459	*/
3460	case VINF_EM_RESUME:
3461	Log2(("EMR3ExecuteVM: VINF_EM_RESUME: %d -> VINF_EM_RESCHEDULE\n", pVM->em.s.enmState));
3462	/* fall through and get scheduled. */
3463
3464	/*
3465	* Reschedule.
3466	*/
3467	case VINF_EM_RESCHEDULE:
3468	{
3469	EMSTATE enmState = emR3Reschedule(pVM, pVM->em.s.pCtx);
3470	Log2(("EMR3ExecuteVM: VINF_EM_RESCHEDULE: %d -> %d (%s)\n", pVM->em.s.enmState, enmState, EMR3GetStateName(enmState)));
3471	pVM->em.s.enmState = enmState;
3472	break;
3473	}
3474
3475	/*
3476	* Halted.
3477	*/
3478	case VINF_EM_HALT:
3479	Log2(("EMR3ExecuteVM: VINF_EM_HALT: %d -> %d\n", pVM->em.s.enmState, EMSTATE_HALTED));
3480	pVM->em.s.enmState = EMSTATE_HALTED;
3481	break;
3482
3483	/*
3484	* Suspend.
3485	*/
3486	case VINF_EM_SUSPEND:
3487	Log2(("EMR3ExecuteVM: VINF_EM_SUSPEND: %d -> %d\n", pVM->em.s.enmState, EMSTATE_SUSPENDED));
3488	pVM->em.s.enmState = EMSTATE_SUSPENDED;
3489	break;
3490
3491	/*
3492	* Reset.
3493	* We might end up doing a double reset for now, we'll have to clean up the mess later.
3494	*/
3495	case VINF_EM_RESET:
3496	{
3497	EMSTATE enmState = emR3Reschedule(pVM, pVM->em.s.pCtx);
3498	Log2(("EMR3ExecuteVM: VINF_EM_RESET: %d -> %d (%s)\n", pVM->em.s.enmState, enmState, EMR3GetStateName(enmState)));
3499	pVM->em.s.enmState = enmState;
3500	break;
3501	}
3502
3503	/*
3504	* Power Off.
3505	*/
3506	case VINF_EM_OFF:
3507	pVM->em.s.enmState = EMSTATE_TERMINATING;
3508	Log2(("EMR3ExecuteVM: returns VINF_EM_OFF (%d -> %d)\n", pVM->em.s.enmState, EMSTATE_TERMINATING));
3509	TMVirtualPause(pVM);
3510	TMCpuTickPause(pVM);
3511	VMMR3Unlock(pVM);
3512	STAM_REL_PROFILE_ADV_STOP(&pVM->em.s.StatTotal, x);
3513	return rc;
3514
3515	/*
3516	* Terminate the VM.
3517	*/
3518	case VINF_EM_TERMINATE:
3519	pVM->em.s.enmState = EMSTATE_TERMINATING;
3520	Log(("EMR3ExecuteVM returns VINF_EM_TERMINATE (%d -> %d)\n", pVM->em.s.enmState, EMSTATE_TERMINATING));
3521	TMVirtualPause(pVM);
3522	TMCpuTickPause(pVM);
3523	STAM_REL_PROFILE_ADV_STOP(&pVM->em.s.StatTotal, x);
3524	return rc;
3525
3526	/*
3527	* Guest debug events.
3528	*/
3529	case VINF_EM_DBG_STEPPED:
3530	AssertMsgFailed(("VINF_EM_DBG_STEPPED cannot be here!"));
3531	case VINF_EM_DBG_STOP:
3532	case VINF_EM_DBG_BREAKPOINT:
3533	case VINF_EM_DBG_STEP:
3534	if (pVM->em.s.enmState == EMSTATE_RAW)
3535	{
3536	Log2(("EMR3ExecuteVM: %Rrc: %d -> %d\n", rc, pVM->em.s.enmState, EMSTATE_DEBUG_GUEST_RAW));
3537	pVM->em.s.enmState = EMSTATE_DEBUG_GUEST_RAW;
3538	}
3539	else
3540	{
3541	Log2(("EMR3ExecuteVM: %Rrc: %d -> %d\n", rc, pVM->em.s.enmState, EMSTATE_DEBUG_GUEST_REM));
3542	pVM->em.s.enmState = EMSTATE_DEBUG_GUEST_REM;
3543	}
3544	break;
3545
3546	/*
3547	* Hypervisor debug events.
3548	*/
3549	case VINF_EM_DBG_HYPER_STEPPED:
3550	case VINF_EM_DBG_HYPER_BREAKPOINT:
3551	case VINF_EM_DBG_HYPER_ASSERTION:
3552	Log2(("EMR3ExecuteVM: %Rrc: %d -> %d\n", rc, pVM->em.s.enmState, EMSTATE_DEBUG_HYPER));
3553	pVM->em.s.enmState = EMSTATE_DEBUG_HYPER;
3554	break;
3555
3556	/*
3557	* Guru mediations.
3558	*/
3559	case VERR_VMM_RING0_ASSERTION:
3560	Log(("EMR3ExecuteVM: %Rrc: %d -> %d (EMSTATE_GURU_MEDITATION)\n", rc, pVM->em.s.enmState, EMSTATE_GURU_MEDITATION));
3561	pVM->em.s.enmState = EMSTATE_GURU_MEDITATION;
3562	break;
3563
3564	/*
3565	* Any error code showing up here other than the ones we
3566	* know and process above are considered to be FATAL.
3567	*
3568	* Unknown warnings and informational status codes are also
3569	* included in this.
3570	*/
3571	default:
3572	if (RT_SUCCESS(rc))
3573	{
3574	AssertMsgFailed(("Unexpected warning or informational status code %Rra!\n", rc));
3575	rc = VERR_EM_INTERNAL_ERROR;
3576	}
3577	pVM->em.s.enmState = EMSTATE_GURU_MEDITATION;
3578	Log(("EMR3ExecuteVM returns %d\n", rc));
3579	break;
3580	}
3581
3582
3583	/*
3584	* Any waiters can now be woken up
3585	*/
3586	VMMR3Unlock(pVM);
3587	VMMR3Lock(pVM);
3588
3589	STAM_PROFILE_ADV_STOP(&pVM->em.s.StatTotal, x); /* (skip this in release) */
3590	STAM_PROFILE_ADV_START(&pVM->em.s.StatTotal, x);
3591
3592	/*
3593	* Act on the state.
3594	*/
3595	switch (pVM->em.s.enmState)
3596	{
3597	/*
3598	* Execute raw.
3599	*/
3600	case EMSTATE_RAW:
3601	rc = emR3RawExecute(pVM, &fFFDone);
3602	break;
3603
3604	/*
3605	* Execute hardware accelerated raw.
3606	*/
3607	case EMSTATE_HWACC:
3608	rc = emR3HwAccExecute(pVM, idCpu, &fFFDone);
3609	break;
3610
3611	/*
3612	* Execute recompiled.
3613	*/
3614	case EMSTATE_REM:
3615	rc = emR3RemExecute(pVM, &fFFDone);
3616	Log2(("EMR3ExecuteVM: emR3RemExecute -> %Rrc\n", rc));
3617	break;
3618
3619	#ifdef VBOX_WITH_VMI
3620	/*
3621	* Execute PARAV function.
3622	*/
3623	case EMSTATE_PARAV:
3624	rc = PARAVCallFunction(pVM);
3625	pVM->em.s.enmState = EMSTATE_REM;
3626	break;
3627	#endif
3628
3629	/*
3630	* hlt - execution halted until interrupt.
3631	*/
3632	case EMSTATE_HALTED:
3633	{
3634	STAM_REL_PROFILE_START(&pVM->em.s.StatHalted, y);
3635	rc = VMR3WaitHalted(pVM, !(CPUMGetGuestEFlags(pVM) & X86_EFL_IF));
3636	STAM_REL_PROFILE_STOP(&pVM->em.s.StatHalted, y);
3637	break;
3638	}
3639
3640	/*
3641	* Suspended - return to VM.cpp.
3642	*/
3643	case EMSTATE_SUSPENDED:
3644	TMVirtualPause(pVM);
3645	TMCpuTickPause(pVM);
3646	VMMR3Unlock(pVM);
3647	STAM_REL_PROFILE_ADV_STOP(&pVM->em.s.StatTotal, x);
3648	return VINF_EM_SUSPEND;
3649
3650	/*
3651	* Debugging in the guest.
3652	*/
3653	case EMSTATE_DEBUG_GUEST_REM:
3654	case EMSTATE_DEBUG_GUEST_RAW:
3655	TMVirtualPause(pVM);
3656	TMCpuTickPause(pVM);
3657	rc = emR3Debug(pVM, rc);
3658	TMVirtualResume(pVM);
3659	TMCpuTickResume(pVM);
3660	Log2(("EMR3ExecuteVM: enmr3Debug -> %Rrc (state %d)\n", rc, pVM->em.s.enmState));
3661	break;
3662
3663	/*
3664	* Debugging in the hypervisor.
3665	*/
3666	case EMSTATE_DEBUG_HYPER:
3667	{
3668	TMVirtualPause(pVM);
3669	TMCpuTickPause(pVM);
3670	STAM_REL_PROFILE_ADV_STOP(&pVM->em.s.StatTotal, x);
3671
3672	rc = emR3Debug(pVM, rc);
3673	Log2(("EMR3ExecuteVM: enmr3Debug -> %Rrc (state %d)\n", rc, pVM->em.s.enmState));
3674	if (rc != VINF_SUCCESS)
3675	{
3676	/* switch to guru meditation mode */
3677	pVM->em.s.enmState = EMSTATE_GURU_MEDITATION;
3678	VMMR3FatalDump(pVM, rc);
3679	return rc;
3680	}
3681
3682	STAM_REL_PROFILE_ADV_START(&pVM->em.s.StatTotal, x);
3683	TMVirtualResume(pVM);
3684	TMCpuTickResume(pVM);
3685	break;
3686	}
3687
3688	/*
3689	* Guru meditation takes place in the debugger.
3690	*/
3691	case EMSTATE_GURU_MEDITATION:
3692	{
3693	TMVirtualPause(pVM);
3694	TMCpuTickPause(pVM);
3695	VMMR3FatalDump(pVM, rc);
3696	emR3Debug(pVM, rc);
3697	VMMR3Unlock(pVM);
3698	STAM_REL_PROFILE_ADV_STOP(&pVM->em.s.StatTotal, x);
3699	return rc;
3700	}
3701
3702	/*
3703	* The states we don't expect here.
3704	*/
3705	case EMSTATE_NONE:
3706	case EMSTATE_TERMINATING:
3707	default:
3708	AssertMsgFailed(("EMR3ExecuteVM: Invalid state %d!\n", pVM->em.s.enmState));
3709	pVM->em.s.enmState = EMSTATE_GURU_MEDITATION;
3710	TMVirtualPause(pVM);
3711	TMCpuTickPause(pVM);
3712	VMMR3Unlock(pVM);
3713	STAM_REL_PROFILE_ADV_STOP(&pVM->em.s.StatTotal, x);
3714	return VERR_EM_INTERNAL_ERROR;
3715	}
3716	} /* The Outer Main Loop */
3717	}
3718	else
3719	{
3720	/*
3721	* Fatal error.
3722	*/
3723	LogFlow(("EMR3ExecuteVM: returns %Rrc (longjmp / fatal error)\n", rc));
3724	TMVirtualPause(pVM);
3725	TMCpuTickPause(pVM);
3726	VMMR3FatalDump(pVM, rc);
3727	emR3Debug(pVM, rc);
3728	VMMR3Unlock(pVM);
3729	STAM_REL_PROFILE_ADV_STOP(&pVM->em.s.StatTotal, x);
3730	/** @todo change the VM state! */
3731	return rc;
3732	}
3733
3734	/* (won't ever get here). */
3735	AssertFailed();
3736	}
3737

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source: vbox/trunk/src/VBox/VMM/EM.cpp@ 18288

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