VMM.cpp@ 22480

Last change on this file since 22480 was 22480, checked in by vboxsync, 15 years ago
SSM,VMM,Devices,Main,VBoxBFE: Live snapshot/migration SSM API adjustments.
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1	/* $Id: VMM.cpp 22480 2009-08-26 17:14:13Z vboxsync $ */
2	/** @file
3	* VMM - The Virtual Machine Monitor Core.
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	//#define NO_SUPCALLR0VMM
23
24	/** @page pg_vmm VMM - The Virtual Machine Monitor
25	*
26	* The VMM component is two things at the moment, it's a component doing a few
27	* management and routing tasks, and it's the whole virtual machine monitor
28	* thing. For hysterical reasons, it is not doing all the management that one
29	* would expect, this is instead done by @ref pg_vm. We'll address this
30	* misdesign eventually.
31	*
32	* @see grp_vmm, grp_vm
33	*
34	*
35	* @section sec_vmmstate VMM State
36	*
37	* @image html VM_Statechart_Diagram.gif
38	*
39	* To be written.
40	*
41	*
42	* @subsection subsec_vmm_init VMM Initialization
43	*
44	* To be written.
45	*
46	*
47	* @subsection subsec_vmm_term VMM Termination
48	*
49	* To be written.
50	*
51	*/
52
53	/*******************************************************************************
54	* Header Files *
55	*******************************************************************************/
56	#define LOG_GROUP LOG_GROUP_VMM
57	#include <VBox/vmm.h>
58	#include <VBox/vmapi.h>
59	#include <VBox/pgm.h>
60	#include <VBox/cfgm.h>
61	#include <VBox/pdmqueue.h>
62	#include <VBox/pdmcritsect.h>
63	#include <VBox/pdmapi.h>
64	#include <VBox/cpum.h>
65	#include <VBox/mm.h>
66	#include <VBox/iom.h>
67	#include <VBox/trpm.h>
68	#include <VBox/selm.h>
69	#include <VBox/em.h>
70	#include <VBox/sup.h>
71	#include <VBox/dbgf.h>
72	#include <VBox/csam.h>
73	#include <VBox/patm.h>
74	#include <VBox/rem.h>
75	#include <VBox/ssm.h>
76	#include <VBox/tm.h>
77	#include "VMMInternal.h"
78	#include "VMMSwitcher/VMMSwitcher.h"
79	#include <VBox/vm.h>
80
81	#include <VBox/err.h>
82	#include <VBox/param.h>
83	#include <VBox/version.h>
84	#include <VBox/x86.h>
85	#include <VBox/hwaccm.h>
86	#include <iprt/assert.h>
87	#include <iprt/alloc.h>
88	#include <iprt/asm.h>
89	#include <iprt/time.h>
90	#include <iprt/semaphore.h>
91	#include <iprt/stream.h>
92	#include <iprt/string.h>
93	#include <iprt/stdarg.h>
94	#include <iprt/ctype.h>
95
96
97
98	/*******************************************************************************
99	* Defined Constants And Macros *
100	*******************************************************************************/
101	/** The saved state version. */
102	#define VMM_SAVED_STATE_VERSION 3
103
104
105	/*******************************************************************************
106	* Internal Functions *
107	*******************************************************************************/
108	static int vmmR3InitStacks(PVM pVM);
109	static int vmmR3InitLoggers(PVM pVM);
110	static void vmmR3InitRegisterStats(PVM pVM);
111	static DECLCALLBACK(int) vmmR3Save(PVM pVM, PSSMHANDLE pSSM);
112	static DECLCALLBACK(int) vmmR3Load(PVM pVM, PSSMHANDLE pSSM, uint32_t uVersion, uint32_t uPhase);
113	static DECLCALLBACK(void) vmmR3YieldEMT(PVM pVM, PTMTIMER pTimer, void *pvUser);
114	static int vmmR3ServiceCallRing3Request(PVM pVM, PVMCPU pVCpu);
115	static DECLCALLBACK(void) vmmR3InfoFF(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs);
116
117
118	/**
119	* Initializes the VMM.
120	*
121	* @returns VBox status code.
122	* @param pVM The VM to operate on.
123	*/
124	VMMR3DECL(int) VMMR3Init(PVM pVM)
125	{
126	LogFlow(("VMMR3Init\n"));
127
128	/*
129	* Assert alignment, sizes and order.
130	*/
131	AssertMsg(pVM->vmm.s.offVM == 0, ("Already initialized!\n"));
132	AssertCompile(sizeof(pVM->vmm.s) <= sizeof(pVM->vmm.padding));
133	AssertCompile(sizeof(pVM->aCpus[0].vmm.s) <= sizeof(pVM->aCpus[0].vmm.padding));
134
135	/*
136	* Init basic VM VMM members.
137	*/
138	pVM->vmm.s.offVM = RT_OFFSETOF(VM, vmm);
139	pVM->vmm.s.hEvtRendezvousEnterOneByOne = NIL_RTSEMEVENT;
140	pVM->vmm.s.hEvtMulRendezvousEnterAllAtOnce = NIL_RTSEMEVENTMULTI;
141	pVM->vmm.s.hEvtMulRendezvousDone = NIL_RTSEMEVENTMULTI;
142	pVM->vmm.s.hEvtRendezvousDoneCaller = NIL_RTSEMEVENT;
143	int rc = CFGMR3QueryU32(CFGMR3GetRoot(pVM), "YieldEMTInterval", &pVM->vmm.s.cYieldEveryMillies);
144	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
145	pVM->vmm.s.cYieldEveryMillies = 23; /* Value arrived at after experimenting with the grub boot prompt. */
146	//pVM->vmm.s.cYieldEveryMillies = 8; //debugging
147	else
148	AssertMsgRCReturn(rc, ("Configuration error. Failed to query \"YieldEMTInterval\", rc=%Rrc\n", rc), rc);
149
150	/*
151	* Initialize the VMM sync critical section and semaphores.
152	*/
153	rc = RTCritSectInit(&pVM->vmm.s.CritSectSync);
154	AssertRCReturn(rc, rc);
155	rc = RTSemEventCreate(&pVM->vmm.s.hEvtRendezvousEnterOneByOne);
156	AssertRCReturn(rc, rc);
157	rc = RTSemEventMultiCreate(&pVM->vmm.s.hEvtMulRendezvousEnterAllAtOnce);
158	AssertRCReturn(rc, rc);
159	rc = RTSemEventMultiCreate(&pVM->vmm.s.hEvtMulRendezvousDone);
160	AssertRCReturn(rc, rc);
161	rc = RTSemEventCreate(&pVM->vmm.s.hEvtRendezvousDoneCaller);
162	AssertRCReturn(rc, rc);
163
164	/* GC switchers are enabled by default. Turned off by HWACCM. */
165	pVM->vmm.s.fSwitcherDisabled = false;
166
167	/*
168	* Register the saved state data unit.
169	*/
170	rc = SSMR3RegisterInternal(pVM, "vmm", 1, VMM_SAVED_STATE_VERSION, VMM_STACK_SIZE + sizeof(RTGCPTR),
171	NULL, NULL, NULL,
172	NULL, vmmR3Save, NULL,
173	NULL, vmmR3Load, NULL);
174	if (RT_FAILURE(rc))
175	return rc;
176
177	/*
178	* Register the Ring-0 VM handle with the session for fast ioctl calls.
179	*/
180	rc = SUPR3SetVMForFastIOCtl(pVM->pVMR0);
181	if (RT_FAILURE(rc))
182	return rc;
183
184	/*
185	* Init various sub-components.
186	*/
187	rc = vmmR3SwitcherInit(pVM);
188	if (RT_SUCCESS(rc))
189	{
190	rc = vmmR3InitStacks(pVM);
191	if (RT_SUCCESS(rc))
192	{
193	rc = vmmR3InitLoggers(pVM);
194
195	#ifdef VBOX_WITH_NMI
196	/*
197	* Allocate mapping for the host APIC.
198	*/
199	if (RT_SUCCESS(rc))
200	{
201	rc = MMR3HyperReserve(pVM, PAGE_SIZE, "Host APIC", &pVM->vmm.s.GCPtrApicBase);
202	AssertRC(rc);
203	}
204	#endif
205	if (RT_SUCCESS(rc))
206	{
207	/*
208	* Debug info and statistics.
209	*/
210	DBGFR3InfoRegisterInternal(pVM, "ff", "Displays the current Forced actions Flags.", vmmR3InfoFF);
211	vmmR3InitRegisterStats(pVM);
212
213	return VINF_SUCCESS;
214	}
215	}
216	/** @todo: Need failure cleanup. */
217
218	//more todo in here?
219	//if (RT_SUCCESS(rc))
220	//{
221	//}
222	//int rc2 = vmmR3TermCoreCode(pVM);
223	//AssertRC(rc2));
224	}
225
226	return rc;
227	}
228
229
230	/**
231	* Allocate & setup the VMM RC stack(s) (for EMTs).
232	*
233	* The stacks are also used for long jumps in Ring-0.
234	*
235	* @returns VBox status code.
236	* @param pVM Pointer to the shared VM structure.
237	*
238	* @remarks The optional guard page gets it protection setup up during R3 init
239	* completion because of init order issues.
240	*/
241	static int vmmR3InitStacks(PVM pVM)
242	{
243	int rc = VINF_SUCCESS;
244	#ifdef VMM_R0_SWITCH_STACK
245	uint32_t fFlags = MMHYPER_AONR_FLAGS_KERNEL_MAPPING;
246	#else
247	uint32_t fFlags = 0;
248	#endif
249
250	for (VMCPUID idCpu = 0; idCpu < pVM->cCPUs; idCpu++)
251	{
252	PVMCPU pVCpu = &pVM->aCpus[idCpu];
253
254	#ifdef VBOX_STRICT_VMM_STACK
255	rc = MMR3HyperAllocOnceNoRelEx(pVM, PAGE_SIZE + VMM_STACK_SIZE + PAGE_SIZE,
256	#else
257	rc = MMR3HyperAllocOnceNoRelEx(pVM, VMM_STACK_SIZE,
258	#endif
259	PAGE_SIZE, MM_TAG_VMM, fFlags, (void **)&pVCpu->vmm.s.pbEMTStackR3);
260	if (RT_SUCCESS(rc))
261	{
262	#ifdef VBOX_STRICT_VMM_STACK
263	pVCpu->vmm.s.pbEMTStackR3 += PAGE_SIZE;
264	#endif
265	#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
266	/* MMHyperR3ToR0 returns R3 when not doing hardware assisted virtualization. */
267	if (!VMMIsHwVirtExtForced(pVM))
268	pVCpu->vmm.s.CallRing3JmpBufR0.pvSavedStack = NIL_RTR0PTR;
269	else
270	#endif
271	pVCpu->vmm.s.CallRing3JmpBufR0.pvSavedStack = MMHyperR3ToR0(pVM, pVCpu->vmm.s.pbEMTStackR3);
272	pVCpu->vmm.s.pbEMTStackRC = MMHyperR3ToRC(pVM, pVCpu->vmm.s.pbEMTStackR3);
273	pVCpu->vmm.s.pbEMTStackBottomRC = pVCpu->vmm.s.pbEMTStackRC + VMM_STACK_SIZE;
274	AssertRelease(pVCpu->vmm.s.pbEMTStackRC);
275
276	CPUMSetHyperESP(pVCpu, pVCpu->vmm.s.pbEMTStackBottomRC);
277	}
278	}
279
280	return rc;
281	}
282
283
284	/**
285	* Initialize the loggers.
286	*
287	* @returns VBox status code.
288	* @param pVM Pointer to the shared VM structure.
289	*/
290	static int vmmR3InitLoggers(PVM pVM)
291	{
292	int rc;
293
294	/*
295	* Allocate RC & R0 Logger instances (they are finalized in the relocator).
296	*/
297	#ifdef LOG_ENABLED
298	PRTLOGGER pLogger = RTLogDefaultInstance();
299	if (pLogger)
300	{
301	pVM->vmm.s.cbRCLogger = RT_OFFSETOF(RTLOGGERRC, afGroups[pLogger->cGroups]);
302	rc = MMR3HyperAllocOnceNoRel(pVM, pVM->vmm.s.cbRCLogger, 0, MM_TAG_VMM, (void **)&pVM->vmm.s.pRCLoggerR3);
303	if (RT_FAILURE(rc))
304	return rc;
305	pVM->vmm.s.pRCLoggerRC = MMHyperR3ToRC(pVM, pVM->vmm.s.pRCLoggerR3);
306
307	# ifdef VBOX_WITH_R0_LOGGING
308	for (VMCPUID i = 0; i < pVM->cCPUs; i++)
309	{
310	PVMCPU pVCpu = &pVM->aCpus[i];
311
312	rc = MMR3HyperAllocOnceNoRelEx(pVM, RT_OFFSETOF(VMMR0LOGGER, Logger.afGroups[pLogger->cGroups]),
313	0, MM_TAG_VMM, MMHYPER_AONR_FLAGS_KERNEL_MAPPING,
314	(void **)&pVCpu->vmm.s.pR0LoggerR3);
315	if (RT_FAILURE(rc))
316	return rc;
317	pVCpu->vmm.s.pR0LoggerR3->pVM = pVM->pVMR0;
318	//pVCpu->vmm.s.pR0LoggerR3->fCreated = false;
319	pVCpu->vmm.s.pR0LoggerR3->cbLogger = RT_OFFSETOF(RTLOGGER, afGroups[pLogger->cGroups]);
320	pVCpu->vmm.s.pR0LoggerR0 = MMHyperR3ToR0(pVM, pVCpu->vmm.s.pR0LoggerR3);
321	}
322	# endif
323	}
324	#endif /* LOG_ENABLED */
325
326	#ifdef VBOX_WITH_RC_RELEASE_LOGGING
327	/*
328	* Allocate RC release logger instances (finalized in the relocator).
329	*/
330	PRTLOGGER pRelLogger = RTLogRelDefaultInstance();
331	if (pRelLogger)
332	{
333	pVM->vmm.s.cbRCRelLogger = RT_OFFSETOF(RTLOGGERRC, afGroups[pRelLogger->cGroups]);
334	rc = MMR3HyperAllocOnceNoRel(pVM, pVM->vmm.s.cbRCRelLogger, 0, MM_TAG_VMM, (void **)&pVM->vmm.s.pRCRelLoggerR3);
335	if (RT_FAILURE(rc))
336	return rc;
337	pVM->vmm.s.pRCRelLoggerRC = MMHyperR3ToRC(pVM, pVM->vmm.s.pRCRelLoggerR3);
338	}
339	#endif /* VBOX_WITH_RC_RELEASE_LOGGING */
340	return VINF_SUCCESS;
341	}
342
343
344	/**
345	* VMMR3Init worker that register the statistics with STAM.
346	*
347	* @param pVM The shared VM structure.
348	*/
349	static void vmmR3InitRegisterStats(PVM pVM)
350	{
351	/*
352	* Statistics.
353	*/
354	STAM_REG(pVM, &pVM->vmm.s.StatRunRC, STAMTYPE_COUNTER, "/VMM/RunRC", STAMUNIT_OCCURENCES, "Number of context switches.");
355	STAM_REG(pVM, &pVM->vmm.s.StatRZRetNormal, STAMTYPE_COUNTER, "/VMM/RZRet/Normal", STAMUNIT_OCCURENCES, "Number of VINF_SUCCESS returns.");
356	STAM_REG(pVM, &pVM->vmm.s.StatRZRetInterrupt, STAMTYPE_COUNTER, "/VMM/RZRet/Interrupt", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_INTERRUPT returns.");
357	STAM_REG(pVM, &pVM->vmm.s.StatRZRetInterruptHyper, STAMTYPE_COUNTER, "/VMM/RZRet/InterruptHyper", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_INTERRUPT_HYPER returns.");
358	STAM_REG(pVM, &pVM->vmm.s.StatRZRetGuestTrap, STAMTYPE_COUNTER, "/VMM/RZRet/GuestTrap", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_GUEST_TRAP returns.");
359	STAM_REG(pVM, &pVM->vmm.s.StatRZRetRingSwitch, STAMTYPE_COUNTER, "/VMM/RZRet/RingSwitch", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_RING_SWITCH returns.");
360	STAM_REG(pVM, &pVM->vmm.s.StatRZRetRingSwitchInt, STAMTYPE_COUNTER, "/VMM/RZRet/RingSwitchInt", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_RING_SWITCH_INT returns.");
361	STAM_REG(pVM, &pVM->vmm.s.StatRZRetStaleSelector, STAMTYPE_COUNTER, "/VMM/RZRet/StaleSelector", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_STALE_SELECTOR returns.");
362	STAM_REG(pVM, &pVM->vmm.s.StatRZRetIRETTrap, STAMTYPE_COUNTER, "/VMM/RZRet/IRETTrap", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_IRET_TRAP returns.");
363	STAM_REG(pVM, &pVM->vmm.s.StatRZRetEmulate, STAMTYPE_COUNTER, "/VMM/RZRet/Emulate", STAMUNIT_OCCURENCES, "Number of VINF_EM_EXECUTE_INSTRUCTION returns.");
364	STAM_REG(pVM, &pVM->vmm.s.StatRZRetIOBlockEmulate, STAMTYPE_COUNTER, "/VMM/RZRet/EmulateIOBlock", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_EMULATE_IO_BLOCK returns.");
365	STAM_REG(pVM, &pVM->vmm.s.StatRZRetPatchEmulate, STAMTYPE_COUNTER, "/VMM/RZRet/PatchEmulate", STAMUNIT_OCCURENCES, "Number of VINF_PATCH_EMULATE_INSTR returns.");
366	STAM_REG(pVM, &pVM->vmm.s.StatRZRetIORead, STAMTYPE_COUNTER, "/VMM/RZRet/IORead", STAMUNIT_OCCURENCES, "Number of VINF_IOM_HC_IOPORT_READ returns.");
367	STAM_REG(pVM, &pVM->vmm.s.StatRZRetIOWrite, STAMTYPE_COUNTER, "/VMM/RZRet/IOWrite", STAMUNIT_OCCURENCES, "Number of VINF_IOM_HC_IOPORT_WRITE returns.");
368	STAM_REG(pVM, &pVM->vmm.s.StatRZRetMMIORead, STAMTYPE_COUNTER, "/VMM/RZRet/MMIORead", STAMUNIT_OCCURENCES, "Number of VINF_IOM_HC_MMIO_READ returns.");
369	STAM_REG(pVM, &pVM->vmm.s.StatRZRetMMIOWrite, STAMTYPE_COUNTER, "/VMM/RZRet/MMIOWrite", STAMUNIT_OCCURENCES, "Number of VINF_IOM_HC_MMIO_WRITE returns.");
370	STAM_REG(pVM, &pVM->vmm.s.StatRZRetMMIOReadWrite, STAMTYPE_COUNTER, "/VMM/RZRet/MMIOReadWrite", STAMUNIT_OCCURENCES, "Number of VINF_IOM_HC_MMIO_READ_WRITE returns.");
371	STAM_REG(pVM, &pVM->vmm.s.StatRZRetMMIOPatchRead, STAMTYPE_COUNTER, "/VMM/RZRet/MMIOPatchRead", STAMUNIT_OCCURENCES, "Number of VINF_IOM_HC_MMIO_PATCH_READ returns.");
372	STAM_REG(pVM, &pVM->vmm.s.StatRZRetMMIOPatchWrite, STAMTYPE_COUNTER, "/VMM/RZRet/MMIOPatchWrite", STAMUNIT_OCCURENCES, "Number of VINF_IOM_HC_MMIO_PATCH_WRITE returns.");
373	STAM_REG(pVM, &pVM->vmm.s.StatRZRetLDTFault, STAMTYPE_COUNTER, "/VMM/RZRet/LDTFault", STAMUNIT_OCCURENCES, "Number of VINF_EM_EXECUTE_INSTRUCTION_GDT_FAULT returns.");
374	STAM_REG(pVM, &pVM->vmm.s.StatRZRetGDTFault, STAMTYPE_COUNTER, "/VMM/RZRet/GDTFault", STAMUNIT_OCCURENCES, "Number of VINF_EM_EXECUTE_INSTRUCTION_LDT_FAULT returns.");
375	STAM_REG(pVM, &pVM->vmm.s.StatRZRetIDTFault, STAMTYPE_COUNTER, "/VMM/RZRet/IDTFault", STAMUNIT_OCCURENCES, "Number of VINF_EM_EXECUTE_INSTRUCTION_IDT_FAULT returns.");
376	STAM_REG(pVM, &pVM->vmm.s.StatRZRetTSSFault, STAMTYPE_COUNTER, "/VMM/RZRet/TSSFault", STAMUNIT_OCCURENCES, "Number of VINF_EM_EXECUTE_INSTRUCTION_TSS_FAULT returns.");
377	STAM_REG(pVM, &pVM->vmm.s.StatRZRetPDFault, STAMTYPE_COUNTER, "/VMM/RZRet/PDFault", STAMUNIT_OCCURENCES, "Number of VINF_EM_EXECUTE_INSTRUCTION_PD_FAULT returns.");
378	STAM_REG(pVM, &pVM->vmm.s.StatRZRetCSAMTask, STAMTYPE_COUNTER, "/VMM/RZRet/CSAMTask", STAMUNIT_OCCURENCES, "Number of VINF_CSAM_PENDING_ACTION returns.");
379	STAM_REG(pVM, &pVM->vmm.s.StatRZRetSyncCR3, STAMTYPE_COUNTER, "/VMM/RZRet/SyncCR", STAMUNIT_OCCURENCES, "Number of VINF_PGM_SYNC_CR3 returns.");
380	STAM_REG(pVM, &pVM->vmm.s.StatRZRetMisc, STAMTYPE_COUNTER, "/VMM/RZRet/Misc", STAMUNIT_OCCURENCES, "Number of misc returns.");
381	STAM_REG(pVM, &pVM->vmm.s.StatRZRetPatchInt3, STAMTYPE_COUNTER, "/VMM/RZRet/PatchInt3", STAMUNIT_OCCURENCES, "Number of VINF_PATM_PATCH_INT3 returns.");
382	STAM_REG(pVM, &pVM->vmm.s.StatRZRetPatchPF, STAMTYPE_COUNTER, "/VMM/RZRet/PatchPF", STAMUNIT_OCCURENCES, "Number of VINF_PATM_PATCH_TRAP_PF returns.");
383	STAM_REG(pVM, &pVM->vmm.s.StatRZRetPatchGP, STAMTYPE_COUNTER, "/VMM/RZRet/PatchGP", STAMUNIT_OCCURENCES, "Number of VINF_PATM_PATCH_TRAP_GP returns.");
384	STAM_REG(pVM, &pVM->vmm.s.StatRZRetPatchIretIRQ, STAMTYPE_COUNTER, "/VMM/RZRet/PatchIret", STAMUNIT_OCCURENCES, "Number of VINF_PATM_PENDING_IRQ_AFTER_IRET returns.");
385	STAM_REG(pVM, &pVM->vmm.s.StatRZRetRescheduleREM, STAMTYPE_COUNTER, "/VMM/RZRet/ScheduleREM", STAMUNIT_OCCURENCES, "Number of VINF_EM_RESCHEDULE_REM returns.");
386	STAM_REG(pVM, &pVM->vmm.s.StatRZRetToR3, STAMTYPE_COUNTER, "/VMM/RZRet/ToR3", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_TO_R3 returns.");
387	STAM_REG(pVM, &pVM->vmm.s.StatRZRetTimerPending, STAMTYPE_COUNTER, "/VMM/RZRet/TimerPending", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_TIMER_PENDING returns.");
388	STAM_REG(pVM, &pVM->vmm.s.StatRZRetInterruptPending, STAMTYPE_COUNTER, "/VMM/RZRet/InterruptPending", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_INTERRUPT_PENDING returns.");
389	STAM_REG(pVM, &pVM->vmm.s.StatRZRetPATMDuplicateFn, STAMTYPE_COUNTER, "/VMM/RZRet/PATMDuplicateFn", STAMUNIT_OCCURENCES, "Number of VINF_PATM_DUPLICATE_FUNCTION returns.");
390	STAM_REG(pVM, &pVM->vmm.s.StatRZRetPGMChangeMode, STAMTYPE_COUNTER, "/VMM/RZRet/PGMChangeMode", STAMUNIT_OCCURENCES, "Number of VINF_PGM_CHANGE_MODE returns.");
391	STAM_REG(pVM, &pVM->vmm.s.StatRZRetPendingRequest, STAMTYPE_COUNTER, "/VMM/RZRet/PendingRequest", STAMUNIT_OCCURENCES, "Number of VINF_EM_PENDING_REQUEST returns.");
392	STAM_REG(pVM, &pVM->vmm.s.StatRZRetPatchTPR, STAMTYPE_COUNTER, "/VMM/RZRet/PatchTPR", STAMUNIT_OCCURENCES, "Number of VINF_EM_HWACCM_PATCH_TPR_INSTR returns.");
393	STAM_REG(pVM, &pVM->vmm.s.StatRZRetCallRing3, STAMTYPE_COUNTER, "/VMM/RZCallR3/Misc", STAMUNIT_OCCURENCES, "Number of Other ring-3 calls.");
394	STAM_REG(pVM, &pVM->vmm.s.StatRZCallPDMLock, STAMTYPE_COUNTER, "/VMM/RZCallR3/PDMLock", STAMUNIT_OCCURENCES, "Number of VMMCALLRING3_PDM_LOCK calls.");
395	STAM_REG(pVM, &pVM->vmm.s.StatRZCallPDMQueueFlush, STAMTYPE_COUNTER, "/VMM/RZCallR3/PDMQueueFlush", STAMUNIT_OCCURENCES, "Number of VMMCALLRING3_PDM_QUEUE_FLUSH calls.");
396	STAM_REG(pVM, &pVM->vmm.s.StatRZCallPGMLock, STAMTYPE_COUNTER, "/VMM/RZCallR3/PGMLock", STAMUNIT_OCCURENCES, "Number of VMMCALLRING3_PGM_LOCK calls.");
397	STAM_REG(pVM, &pVM->vmm.s.StatRZCallPGMPoolGrow, STAMTYPE_COUNTER, "/VMM/RZCallR3/PGMPoolGrow", STAMUNIT_OCCURENCES, "Number of VMMCALLRING3_PGM_POOL_GROW calls.");
398	STAM_REG(pVM, &pVM->vmm.s.StatRZCallPGMMapChunk, STAMTYPE_COUNTER, "/VMM/RZCallR3/PGMMapChunk", STAMUNIT_OCCURENCES, "Number of VMMCALLRING3_PGM_MAP_CHUNK calls.");
399	STAM_REG(pVM, &pVM->vmm.s.StatRZCallPGMAllocHandy, STAMTYPE_COUNTER, "/VMM/RZCallR3/PGMAllocHandy", STAMUNIT_OCCURENCES, "Number of VMMCALLRING3_PGM_ALLOCATE_HANDY_PAGES calls.");
400	STAM_REG(pVM, &pVM->vmm.s.StatRZCallRemReplay, STAMTYPE_COUNTER, "/VMM/RZCallR3/REMReplay", STAMUNIT_OCCURENCES, "Number of VMMCALLRING3_REM_REPLAY_HANDLER_NOTIFICATIONS calls.");
401	STAM_REG(pVM, &pVM->vmm.s.StatRZCallLogFlush, STAMTYPE_COUNTER, "/VMM/RZCallR3/VMMLogFlush", STAMUNIT_OCCURENCES, "Number of VMMCALLRING3_VMM_LOGGER_FLUSH calls.");
402	STAM_REG(pVM, &pVM->vmm.s.StatRZCallVMSetError, STAMTYPE_COUNTER, "/VMM/RZCallR3/VMSetError", STAMUNIT_OCCURENCES, "Number of VMMCALLRING3_VM_SET_ERROR calls.");
403	STAM_REG(pVM, &pVM->vmm.s.StatRZCallVMSetRuntimeError, STAMTYPE_COUNTER, "/VMM/RZCallR3/VMRuntimeError", STAMUNIT_OCCURENCES, "Number of VMMCALLRING3_VM_SET_RUNTIME_ERROR calls.");
404
405	#ifdef VBOX_WITH_STATISTICS
406	for (VMCPUID i = 0; i < pVM->cCPUs; i++)
407	{
408	STAMR3RegisterF(pVM, &pVM->aCpus[i].vmm.s.CallRing3JmpBufR0.cbUsedMax, STAMTYPE_U32_RESET, STAMVISIBILITY_ALWAYS, STAMUNIT_BYTES, "Max amount of stack used.", "/VMM/Stack/CPU%u/Max", i);
409	STAMR3RegisterF(pVM, &pVM->aCpus[i].vmm.s.CallRing3JmpBufR0.cbUsedAvg, STAMTYPE_U32, STAMVISIBILITY_ALWAYS, STAMUNIT_BYTES, "Average stack usage.", "/VMM/Stack/CPU%u/Avg", i);
410	STAMR3RegisterF(pVM, &pVM->aCpus[i].vmm.s.CallRing3JmpBufR0.cUsedTotal, STAMTYPE_U64, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of stack usages.", "/VMM/Stack/CPU%u/Uses", i);
411	}
412	#endif
413	}
414
415
416	/**
417	* Initializes the per-VCPU VMM.
418	*
419	* @returns VBox status code.
420	* @param pVM The VM to operate on.
421	*/
422	VMMR3DECL(int) VMMR3InitCPU(PVM pVM)
423	{
424	LogFlow(("VMMR3InitCPU\n"));
425	return VINF_SUCCESS;
426	}
427
428
429	/**
430	* Ring-3 init finalizing.
431	*
432	* @returns VBox status code.
433	* @param pVM The VM handle.
434	*/
435	VMMR3DECL(int) VMMR3InitFinalize(PVM pVM)
436	{
437	int rc = VINF_SUCCESS;
438
439	for (VMCPUID idCpu = 0; idCpu < pVM->cCPUs; idCpu++)
440	{
441	PVMCPU pVCpu = &pVM->aCpus[idCpu];
442
443	#ifdef VBOX_STRICT_VMM_STACK
444	/*
445	* Two inaccessible pages at each sides of the stack to catch over/under-flows.
446	*/
447	memset(pVCpu->vmm.s.pbEMTStackR3 - PAGE_SIZE, 0xcc, PAGE_SIZE);
448	MMR3HyperSetGuard(pVM, pVCpu->vmm.s.pbEMTStackR3 - PAGE_SIZE, PAGE_SIZE, true /fSet/);
449
450	memset(pVCpu->vmm.s.pbEMTStackR3 + VMM_STACK_SIZE, 0xcc, PAGE_SIZE);
451	MMR3HyperSetGuard(pVM, pVCpu->vmm.s.pbEMTStackR3 + VMM_STACK_SIZE, PAGE_SIZE, true /fSet/);
452	#endif
453
454	/*
455	* Set page attributes to r/w for stack pages.
456	*/
457	rc = PGMMapSetPage(pVM, pVCpu->vmm.s.pbEMTStackRC, VMM_STACK_SIZE, X86_PTE_P \| X86_PTE_A \| X86_PTE_D \| X86_PTE_RW);
458	AssertRC(rc);
459	if (RT_FAILURE(rc))
460	break;
461	}
462	if (RT_SUCCESS(rc))
463	{
464	/*
465	* Create the EMT yield timer.
466	*/
467	rc = TMR3TimerCreateInternal(pVM, TMCLOCK_REAL, vmmR3YieldEMT, NULL, "EMT Yielder", &pVM->vmm.s.pYieldTimer);
468	if (RT_SUCCESS(rc))
469	rc = TMTimerSetMillies(pVM->vmm.s.pYieldTimer, pVM->vmm.s.cYieldEveryMillies);
470	}
471
472	#ifdef VBOX_WITH_NMI
473	/*
474	* Map the host APIC into GC - This is AMD/Intel + Host OS specific!
475	*/
476	if (RT_SUCCESS(rc))
477	rc = PGMMap(pVM, pVM->vmm.s.GCPtrApicBase, 0xfee00000, PAGE_SIZE,
478	X86_PTE_P \| X86_PTE_RW \| X86_PTE_PWT \| X86_PTE_PCD \| X86_PTE_A \| X86_PTE_D);
479	#endif
480	return rc;
481	}
482
483
484	/**
485	* Initializes the R0 VMM.
486	*
487	* @returns VBox status code.
488	* @param pVM The VM to operate on.
489	*/
490	VMMR3DECL(int) VMMR3InitR0(PVM pVM)
491	{
492	int rc;
493	PVMCPU pVCpu = VMMGetCpu(pVM);
494	Assert(pVCpu && pVCpu->idCpu == 0);
495
496	#ifdef LOG_ENABLED
497	/*
498	* Initialize the ring-0 logger if we haven't done so yet.
499	*/
500	if ( pVCpu->vmm.s.pR0LoggerR3
501	&& !pVCpu->vmm.s.pR0LoggerR3->fCreated)
502	{
503	rc = VMMR3UpdateLoggers(pVM);
504	if (RT_FAILURE(rc))
505	return rc;
506	}
507	#endif
508
509	/*
510	* Call Ring-0 entry with init code.
511	*/
512	for (;;)
513	{
514	#ifdef NO_SUPCALLR0VMM
515	//rc = VERR_GENERAL_FAILURE;
516	rc = VINF_SUCCESS;
517	#else
518	rc = SUPR3CallVMMR0Ex(pVM->pVMR0, 0 /idCpu/, VMMR0_DO_VMMR0_INIT, VMMGetSvnRev(), NULL);
519	#endif
520	/*
521	* Flush the logs.
522	*/
523	#ifdef LOG_ENABLED
524	if ( pVCpu->vmm.s.pR0LoggerR3
525	&& pVCpu->vmm.s.pR0LoggerR3->Logger.offScratch > 0)
526	RTLogFlushToLogger(&pVCpu->vmm.s.pR0LoggerR3->Logger, NULL);
527	#endif
528	if (rc != VINF_VMM_CALL_HOST)
529	break;
530	rc = vmmR3ServiceCallRing3Request(pVM, pVCpu);
531	if (RT_FAILURE(rc) \|\| (rc >= VINF_EM_FIRST && rc <= VINF_EM_LAST))
532	break;
533	/* Resume R0 */
534	}
535
536	if (RT_FAILURE(rc) \|\| (rc >= VINF_EM_FIRST && rc <= VINF_EM_LAST))
537	{
538	LogRel(("R0 init failed, rc=%Rra\n", rc));
539	if (RT_SUCCESS(rc))
540	rc = VERR_INTERNAL_ERROR;
541	}
542	return rc;
543	}
544
545
546	/**
547	* Initializes the RC VMM.
548	*
549	* @returns VBox status code.
550	* @param pVM The VM to operate on.
551	*/
552	VMMR3DECL(int) VMMR3InitRC(PVM pVM)
553	{
554	PVMCPU pVCpu = VMMGetCpu(pVM);
555	Assert(pVCpu && pVCpu->idCpu == 0);
556
557	/* In VMX mode, there's no need to init RC. */
558	if (pVM->vmm.s.fSwitcherDisabled)
559	return VINF_SUCCESS;
560
561	AssertReturn(pVM->cCPUs == 1, VERR_RAW_MODE_INVALID_SMP);
562
563	/*
564	* Call VMMGCInit():
565	* -# resolve the address.
566	* -# setup stackframe and EIP to use the trampoline.
567	* -# do a generic hypervisor call.
568	*/
569	RTRCPTR RCPtrEP;
570	int rc = PDMR3LdrGetSymbolRC(pVM, VMMGC_MAIN_MODULE_NAME, "VMMGCEntry", &RCPtrEP);
571	if (RT_SUCCESS(rc))
572	{
573	CPUMHyperSetCtxCore(pVCpu, NULL);
574	CPUMSetHyperESP(pVCpu, pVCpu->vmm.s.pbEMTStackBottomRC); /* Clear the stack. */
575	uint64_t u64TS = RTTimeProgramStartNanoTS();
576	CPUMPushHyper(pVCpu, (uint32_t)(u64TS >> 32)); /* Param 3: The program startup TS - Hi. */
577	CPUMPushHyper(pVCpu, (uint32_t)u64TS); /* Param 3: The program startup TS - Lo. */
578	CPUMPushHyper(pVCpu, VMMGetSvnRev()); /* Param 2: Version argument. */
579	CPUMPushHyper(pVCpu, VMMGC_DO_VMMGC_INIT); /* Param 1: Operation. */
580	CPUMPushHyper(pVCpu, pVM->pVMRC); /* Param 0: pVM */
581	CPUMPushHyper(pVCpu, 5 * sizeof(RTRCPTR)); /* trampoline param: stacksize. */
582	CPUMPushHyper(pVCpu, RCPtrEP); /* Call EIP. */
583	CPUMSetHyperEIP(pVCpu, pVM->vmm.s.pfnCallTrampolineRC);
584	Assert(CPUMGetHyperCR3(pVCpu) && CPUMGetHyperCR3(pVCpu) == PGMGetHyperCR3(pVCpu));
585
586	for (;;)
587	{
588	#ifdef NO_SUPCALLR0VMM
589	//rc = VERR_GENERAL_FAILURE;
590	rc = VINF_SUCCESS;
591	#else
592	rc = SUPR3CallVMMR0(pVM->pVMR0, 0 /* VCPU 0 */, VMMR0_DO_CALL_HYPERVISOR, NULL);
593	#endif
594	#ifdef LOG_ENABLED
595	PRTLOGGERRC pLogger = pVM->vmm.s.pRCLoggerR3;
596	if ( pLogger
597	&& pLogger->offScratch > 0)
598	RTLogFlushRC(NULL, pLogger);
599	#endif
600	#ifdef VBOX_WITH_RC_RELEASE_LOGGING
601	PRTLOGGERRC pRelLogger = pVM->vmm.s.pRCRelLoggerR3;
602	if (RT_UNLIKELY(pRelLogger && pRelLogger->offScratch > 0))
603	RTLogFlushRC(RTLogRelDefaultInstance(), pRelLogger);
604	#endif
605	if (rc != VINF_VMM_CALL_HOST)
606	break;
607	rc = vmmR3ServiceCallRing3Request(pVM, pVCpu);
608	if (RT_FAILURE(rc) \|\| (rc >= VINF_EM_FIRST && rc <= VINF_EM_LAST))
609	break;
610	}
611
612	if (RT_FAILURE(rc) \|\| (rc >= VINF_EM_FIRST && rc <= VINF_EM_LAST))
613	{
614	VMMR3FatalDump(pVM, pVCpu, rc);
615	if (rc >= VINF_EM_FIRST && rc <= VINF_EM_LAST)
616	rc = VERR_INTERNAL_ERROR;
617	}
618	AssertRC(rc);
619	}
620	return rc;
621	}
622
623
624	/**
625	* Terminate the VMM bits.
626	*
627	* @returns VINF_SUCCESS.
628	* @param pVM The VM handle.
629	*/
630	VMMR3DECL(int) VMMR3Term(PVM pVM)
631	{
632	PVMCPU pVCpu = VMMGetCpu(pVM);
633	Assert(pVCpu && pVCpu->idCpu == 0);
634
635	/*
636	* Call Ring-0 entry with termination code.
637	*/
638	int rc;
639	for (;;)
640	{
641	#ifdef NO_SUPCALLR0VMM
642	//rc = VERR_GENERAL_FAILURE;
643	rc = VINF_SUCCESS;
644	#else
645	rc = SUPR3CallVMMR0Ex(pVM->pVMR0, 0 /idCpu/, VMMR0_DO_VMMR0_TERM, 0, NULL);
646	#endif
647	/*
648	* Flush the logs.
649	*/
650	#ifdef LOG_ENABLED
651	if ( pVCpu->vmm.s.pR0LoggerR3
652	&& pVCpu->vmm.s.pR0LoggerR3->Logger.offScratch > 0)
653	RTLogFlushToLogger(&pVCpu->vmm.s.pR0LoggerR3->Logger, NULL);
654	#endif
655	if (rc != VINF_VMM_CALL_HOST)
656	break;
657	rc = vmmR3ServiceCallRing3Request(pVM, pVCpu);
658	if (RT_FAILURE(rc) \|\| (rc >= VINF_EM_FIRST && rc <= VINF_EM_LAST))
659	break;
660	/* Resume R0 */
661	}
662	if (RT_FAILURE(rc) \|\| (rc >= VINF_EM_FIRST && rc <= VINF_EM_LAST))
663	{
664	LogRel(("VMMR3Term: R0 term failed, rc=%Rra. (warning)\n", rc));
665	if (RT_SUCCESS(rc))
666	rc = VERR_INTERNAL_ERROR;
667	}
668
669	RTCritSectDelete(&pVM->vmm.s.CritSectSync);
670	RTSemEventDestroy(pVM->vmm.s.hEvtRendezvousEnterOneByOne);
671	pVM->vmm.s.hEvtRendezvousEnterOneByOne = NIL_RTSEMEVENT;
672	RTSemEventMultiDestroy(pVM->vmm.s.hEvtMulRendezvousEnterAllAtOnce);
673	pVM->vmm.s.hEvtMulRendezvousEnterAllAtOnce = NIL_RTSEMEVENTMULTI;
674	RTSemEventMultiDestroy(pVM->vmm.s.hEvtMulRendezvousDone);
675	pVM->vmm.s.hEvtMulRendezvousDone = NIL_RTSEMEVENTMULTI;
676	RTSemEventDestroy(pVM->vmm.s.hEvtRendezvousDoneCaller);
677	pVM->vmm.s.hEvtRendezvousDoneCaller = NIL_RTSEMEVENT;
678
679	#ifdef VBOX_STRICT_VMM_STACK
680	/*
681	* Make the two stack guard pages present again.
682	*/
683	for (VMCPUID i = 0; i < pVM->cCPUs; i++)
684	{
685	MMR3HyperSetGuard(pVM, pVM->aCpus[i].vmm.s.pbEMTStackR3 - PAGE_SIZE, PAGE_SIZE, false /fSet/);
686	MMR3HyperSetGuard(pVM, pVM->aCpus[i].vmm.s.pbEMTStackR3 + VMM_STACK_SIZE, PAGE_SIZE, false /fSet/);
687	}
688	#endif
689	return rc;
690	}
691
692
693	/**
694	* Terminates the per-VCPU VMM.
695	*
696	* Termination means cleaning up and freeing all resources,
697	* the VM it self is at this point powered off or suspended.
698	*
699	* @returns VBox status code.
700	* @param pVM The VM to operate on.
701	*/
702	VMMR3DECL(int) VMMR3TermCPU(PVM pVM)
703	{
704	return VINF_SUCCESS;
705	}
706
707
708	/**
709	* Applies relocations to data and code managed by this
710	* component. This function will be called at init and
711	* whenever the VMM need to relocate it self inside the GC.
712	*
713	* The VMM will need to apply relocations to the core code.
714	*
715	* @param pVM The VM handle.
716	* @param offDelta The relocation delta.
717	*/
718	VMMR3DECL(void) VMMR3Relocate(PVM pVM, RTGCINTPTR offDelta)
719	{
720	LogFlow(("VMMR3Relocate: offDelta=%RGv\n", offDelta));
721
722	/*
723	* Recalc the RC address.
724	*/
725	pVM->vmm.s.pvCoreCodeRC = MMHyperR3ToRC(pVM, pVM->vmm.s.pvCoreCodeR3);
726
727	/*
728	* The stack.
729	*/
730	for (VMCPUID i = 0; i < pVM->cCPUs; i++)
731	{
732	PVMCPU pVCpu = &pVM->aCpus[i];
733
734	CPUMSetHyperESP(pVCpu, CPUMGetHyperESP(pVCpu) + offDelta);
735
736	pVCpu->vmm.s.pbEMTStackRC = MMHyperR3ToRC(pVM, pVCpu->vmm.s.pbEMTStackR3);
737	pVCpu->vmm.s.pbEMTStackBottomRC = pVCpu->vmm.s.pbEMTStackRC + VMM_STACK_SIZE;
738	}
739
740	/*
741	* All the switchers.
742	*/
743	vmmR3SwitcherRelocate(pVM, offDelta);
744
745	/*
746	* Get other RC entry points.
747	*/
748	int rc = PDMR3LdrGetSymbolRC(pVM, VMMGC_MAIN_MODULE_NAME, "CPUMGCResumeGuest", &pVM->vmm.s.pfnCPUMRCResumeGuest);
749	AssertReleaseMsgRC(rc, ("CPUMGCResumeGuest not found! rc=%Rra\n", rc));
750
751	rc = PDMR3LdrGetSymbolRC(pVM, VMMGC_MAIN_MODULE_NAME, "CPUMGCResumeGuestV86", &pVM->vmm.s.pfnCPUMRCResumeGuestV86);
752	AssertReleaseMsgRC(rc, ("CPUMGCResumeGuestV86 not found! rc=%Rra\n", rc));
753
754	/*
755	* Update the logger.
756	*/
757	VMMR3UpdateLoggers(pVM);
758	}
759
760
761	/**
762	* Updates the settings for the RC and R0 loggers.
763	*
764	* @returns VBox status code.
765	* @param pVM The VM handle.
766	*/
767	VMMR3DECL(int) VMMR3UpdateLoggers(PVM pVM)
768	{
769	/*
770	* Simply clone the logger instance (for RC).
771	*/
772	int rc = VINF_SUCCESS;
773	RTRCPTR RCPtrLoggerFlush = 0;
774
775	if (pVM->vmm.s.pRCLoggerR3
776	#ifdef VBOX_WITH_RC_RELEASE_LOGGING
777	\|\| pVM->vmm.s.pRCRelLoggerR3
778	#endif
779	)
780	{
781	rc = PDMR3LdrGetSymbolRC(pVM, VMMGC_MAIN_MODULE_NAME, "vmmGCLoggerFlush", &RCPtrLoggerFlush);
782	AssertReleaseMsgRC(rc, ("vmmGCLoggerFlush not found! rc=%Rra\n", rc));
783	}
784
785	if (pVM->vmm.s.pRCLoggerR3)
786	{
787	RTRCPTR RCPtrLoggerWrapper = 0;
788	rc = PDMR3LdrGetSymbolRC(pVM, VMMGC_MAIN_MODULE_NAME, "vmmGCLoggerWrapper", &RCPtrLoggerWrapper);
789	AssertReleaseMsgRC(rc, ("vmmGCLoggerWrapper not found! rc=%Rra\n", rc));
790
791	pVM->vmm.s.pRCLoggerRC = MMHyperR3ToRC(pVM, pVM->vmm.s.pRCLoggerR3);
792	rc = RTLogCloneRC(NULL /* default */, pVM->vmm.s.pRCLoggerR3, pVM->vmm.s.cbRCLogger,
793	RCPtrLoggerWrapper, RCPtrLoggerFlush, RTLOGFLAGS_BUFFERED);
794	AssertReleaseMsgRC(rc, ("RTLogCloneRC failed! rc=%Rra\n", rc));
795	}
796
797	#ifdef VBOX_WITH_RC_RELEASE_LOGGING
798	if (pVM->vmm.s.pRCRelLoggerR3)
799	{
800	RTRCPTR RCPtrLoggerWrapper = 0;
801	rc = PDMR3LdrGetSymbolRC(pVM, VMMGC_MAIN_MODULE_NAME, "vmmGCRelLoggerWrapper", &RCPtrLoggerWrapper);
802	AssertReleaseMsgRC(rc, ("vmmGCRelLoggerWrapper not found! rc=%Rra\n", rc));
803
804	pVM->vmm.s.pRCRelLoggerRC = MMHyperR3ToRC(pVM, pVM->vmm.s.pRCRelLoggerR3);
805	rc = RTLogCloneRC(RTLogRelDefaultInstance(), pVM->vmm.s.pRCRelLoggerR3, pVM->vmm.s.cbRCRelLogger,
806	RCPtrLoggerWrapper, RCPtrLoggerFlush, RTLOGFLAGS_BUFFERED);
807	AssertReleaseMsgRC(rc, ("RTLogCloneRC failed! rc=%Rra\n", rc));
808	}
809	#endif /* VBOX_WITH_RC_RELEASE_LOGGING */
810
811	#ifdef LOG_ENABLED
812	/*
813	* For the ring-0 EMT logger, we use a per-thread logger instance
814	* in ring-0. Only initialize it once.
815	*/
816	for (VMCPUID i = 0; i < pVM->cCPUs; i++)
817	{
818	PVMCPU pVCpu = &pVM->aCpus[i];
819	PVMMR0LOGGER pR0LoggerR3 = pVCpu->vmm.s.pR0LoggerR3;
820	if (pR0LoggerR3)
821	{
822	if (!pR0LoggerR3->fCreated)
823	{
824	RTR0PTR pfnLoggerWrapper = NIL_RTR0PTR;
825	rc = PDMR3LdrGetSymbolR0(pVM, VMMR0_MAIN_MODULE_NAME, "vmmR0LoggerWrapper", &pfnLoggerWrapper);
826	AssertReleaseMsgRCReturn(rc, ("vmmR0LoggerWrapper not found! rc=%Rra\n", rc), rc);
827
828	RTR0PTR pfnLoggerFlush = NIL_RTR0PTR;
829	rc = PDMR3LdrGetSymbolR0(pVM, VMMR0_MAIN_MODULE_NAME, "vmmR0LoggerFlush", &pfnLoggerFlush);
830	AssertReleaseMsgRCReturn(rc, ("vmmR0LoggerFlush not found! rc=%Rra\n", rc), rc);
831
832	rc = RTLogCreateForR0(&pR0LoggerR3->Logger, pR0LoggerR3->cbLogger,
833	(PFNRTLOGGER )&pfnLoggerWrapper, (PFNRTLOGFLUSH )&pfnLoggerFlush,
834	RTLOGFLAGS_BUFFERED, RTLOGDEST_DUMMY);
835	AssertReleaseMsgRCReturn(rc, ("RTLogCreateForR0 failed! rc=%Rra\n", rc), rc);
836
837	RTR0PTR pfnLoggerPrefix = NIL_RTR0PTR;
838	rc = PDMR3LdrGetSymbolR0(pVM, VMMR0_MAIN_MODULE_NAME, "vmmR0LoggerPrefix", &pfnLoggerPrefix);
839	AssertReleaseMsgRCReturn(rc, ("vmmR0LoggerPrefix not found! rc=%Rra\n", rc), rc);
840	rc = RTLogSetCustomPrefixCallback(&pR0LoggerR3->Logger, (PFNRTLOGPREFIX )&pfnLoggerPrefix, NULL);
841	AssertReleaseMsgRCReturn(rc, ("RTLogSetCustomPrefixCallback failed! rc=%Rra\n", rc), rc);
842
843	pR0LoggerR3->idCpu = i;
844	pR0LoggerR3->fCreated = true;
845	pR0LoggerR3->fFlushingDisabled = false;
846
847	}
848
849	rc = RTLogCopyGroupsAndFlags(&pR0LoggerR3->Logger, NULL /* default */, pVM->vmm.s.pRCLoggerR3->fFlags, RTLOGFLAGS_BUFFERED);
850	AssertRC(rc);
851	}
852	}
853	#endif
854	return rc;
855	}
856
857
858	/**
859	* Gets the pointer to a buffer containing the R0/RC AssertMsg1 output.
860	*
861	* @returns Pointer to the buffer.
862	* @param pVM The VM handle.
863	*/
864	VMMR3DECL(const char *) VMMR3GetRZAssertMsg1(PVM pVM)
865	{
866	if (HWACCMIsEnabled(pVM))
867	return pVM->vmm.s.szRing0AssertMsg1;
868
869	RTRCPTR RCPtr;
870	int rc = PDMR3LdrGetSymbolRC(pVM, NULL, "g_szRTAssertMsg1", &RCPtr);
871	if (RT_SUCCESS(rc))
872	return (const char *)MMHyperRCToR3(pVM, RCPtr);
873
874	return NULL;
875	}
876
877
878	/**
879	* Gets the pointer to a buffer containing the R0/RC AssertMsg2 output.
880	*
881	* @returns Pointer to the buffer.
882	* @param pVM The VM handle.
883	*/
884	VMMR3DECL(const char *) VMMR3GetRZAssertMsg2(PVM pVM)
885	{
886	if (HWACCMIsEnabled(pVM))
887	return pVM->vmm.s.szRing0AssertMsg2;
888
889	RTRCPTR RCPtr;
890	int rc = PDMR3LdrGetSymbolRC(pVM, NULL, "g_szRTAssertMsg2", &RCPtr);
891	if (RT_SUCCESS(rc))
892	return (const char *)MMHyperRCToR3(pVM, RCPtr);
893
894	return NULL;
895	}
896
897
898	/**
899	* Execute state save operation.
900	*
901	* @returns VBox status code.
902	* @param pVM VM Handle.
903	* @param pSSM SSM operation handle.
904	*/
905	static DECLCALLBACK(int) vmmR3Save(PVM pVM, PSSMHANDLE pSSM)
906	{
907	LogFlow(("vmmR3Save:\n"));
908
909	/*
910	* The hypervisor stack.
911	* Note! See note in vmmR3Load (remove this on version change).
912	*/
913	PVMCPU pVCpu0 = &pVM->aCpus[0];
914	SSMR3PutRCPtr(pSSM, pVCpu0->vmm.s.pbEMTStackBottomRC);
915	RTRCPTR RCPtrESP = CPUMGetHyperESP(pVCpu0);
916	AssertMsg(pVCpu0->vmm.s.pbEMTStackBottomRC - RCPtrESP <= VMM_STACK_SIZE, ("Bottom %RRv ESP=%RRv\n", pVCpu0->vmm.s.pbEMTStackBottomRC, RCPtrESP));
917	SSMR3PutRCPtr(pSSM, RCPtrESP);
918	SSMR3PutMem(pSSM, pVCpu0->vmm.s.pbEMTStackR3, VMM_STACK_SIZE);
919
920	/*
921	* Save the started/stopped state of all CPUs except 0 as it will always
922	* be running. This avoids breaking the saved state version. :-)
923	*/
924	for (VMCPUID i = 1; i < pVM->cCPUs; i++)
925	SSMR3PutBool(pSSM, VMCPUSTATE_IS_STARTED(VMCPU_GET_STATE(&pVM->aCpus[i])));
926
927	return SSMR3PutU32(pSSM, ~0); /* terminator */
928	}
929
930
931	/**
932	* Execute state load operation.
933	*
934	* @returns VBox status code.
935	* @param pVM VM Handle.
936	* @param pSSM SSM operation handle.
937	* @param uVersion Data layout version.
938	* @param uPhase The data phase.
939	*/
940	static DECLCALLBACK(int) vmmR3Load(PVM pVM, PSSMHANDLE pSSM, uint32_t uVersion, uint32_t uPhase)
941	{
942	LogFlow(("vmmR3Load:\n"));
943	Assert(uPhase == SSM_PHASE_FINAL); NOREF(uPhase);
944
945	/*
946	* Validate version.
947	*/
948	if (uVersion != VMM_SAVED_STATE_VERSION)
949	{
950	AssertMsgFailed(("vmmR3Load: Invalid version uVersion=%d!\n", uVersion));
951	return VERR_SSM_UNSUPPORTED_DATA_UNIT_VERSION;
952	}
953
954	/*
955	* Check that the stack is in the same place, or that it's fearly empty.
956	*
957	* Note! This can be skipped next time we update saved state as we will
958	* never be in a R0/RC -> ring-3 call when saving the state. The
959	* stack and the two associated pointers are not required.
960	*/
961	RTRCPTR RCPtrStackBottom;
962	SSMR3GetRCPtr(pSSM, &RCPtrStackBottom);
963	RTRCPTR RCPtrESP;
964	int rc = SSMR3GetRCPtr(pSSM, &RCPtrESP);
965	if (RT_FAILURE(rc))
966	return rc;
967	SSMR3GetMem(pSSM, pVM->aCpus[0].vmm.s.pbEMTStackR3, VMM_STACK_SIZE);
968
969	/* Restore the VMCPU states. VCPU 0 is always started. */
970	VMCPU_SET_STATE(&pVM->aCpus[0], VMCPUSTATE_STARTED);
971	for (VMCPUID i = 1; i < pVM->cCPUs; i++)
972	{
973	bool fStarted;
974	rc = SSMR3GetBool(pSSM, &fStarted);
975	if (RT_FAILURE(rc))
976	return rc;
977	VMCPU_SET_STATE(&pVM->aCpus[i], fStarted ? VMCPUSTATE_STARTED : VMCPUSTATE_STOPPED);
978	}
979
980	/* terminator */
981	uint32_t u32;
982	rc = SSMR3GetU32(pSSM, &u32);
983	if (RT_FAILURE(rc))
984	return rc;
985	if (u32 != ~0U)
986	{
987	AssertMsgFailed(("u32=%#x\n", u32));
988	return VERR_SSM_DATA_UNIT_FORMAT_CHANGED;
989	}
990	return VINF_SUCCESS;
991	}
992
993
994	/**
995	* Resolve a builtin RC symbol.
996	*
997	* Called by PDM when loading or relocating RC modules.
998	*
999	* @returns VBox status
1000	* @param pVM VM Handle.
1001	* @param pszSymbol Symbol to resolv
1002	* @param pRCPtrValue Where to store the symbol value.
1003	*
1004	* @remark This has to work before VMMR3Relocate() is called.
1005	*/
1006	VMMR3DECL(int) VMMR3GetImportRC(PVM pVM, const char *pszSymbol, PRTRCPTR pRCPtrValue)
1007	{
1008	if (!strcmp(pszSymbol, "g_Logger"))
1009	{
1010	if (pVM->vmm.s.pRCLoggerR3)
1011	pVM->vmm.s.pRCLoggerRC = MMHyperR3ToRC(pVM, pVM->vmm.s.pRCLoggerR3);
1012	*pRCPtrValue = pVM->vmm.s.pRCLoggerRC;
1013	}
1014	else if (!strcmp(pszSymbol, "g_RelLogger"))
1015	{
1016	#ifdef VBOX_WITH_RC_RELEASE_LOGGING
1017	if (pVM->vmm.s.pRCRelLoggerR3)
1018	pVM->vmm.s.pRCRelLoggerRC = MMHyperR3ToRC(pVM, pVM->vmm.s.pRCRelLoggerR3);
1019	*pRCPtrValue = pVM->vmm.s.pRCRelLoggerRC;
1020	#else
1021	*pRCPtrValue = NIL_RTRCPTR;
1022	#endif
1023	}
1024	else
1025	return VERR_SYMBOL_NOT_FOUND;
1026	return VINF_SUCCESS;
1027	}
1028
1029
1030	/**
1031	* Suspends the CPU yielder.
1032	*
1033	* @param pVM The VM handle.
1034	*/
1035	VMMR3DECL(void) VMMR3YieldSuspend(PVM pVM)
1036	{
1037	VMCPU_ASSERT_EMT(&pVM->aCpus[0]);
1038	if (!pVM->vmm.s.cYieldResumeMillies)
1039	{
1040	uint64_t u64Now = TMTimerGet(pVM->vmm.s.pYieldTimer);
1041	uint64_t u64Expire = TMTimerGetExpire(pVM->vmm.s.pYieldTimer);
1042	if (u64Now >= u64Expire \|\| u64Expire == ~(uint64_t)0)
1043	pVM->vmm.s.cYieldResumeMillies = pVM->vmm.s.cYieldEveryMillies;
1044	else
1045	pVM->vmm.s.cYieldResumeMillies = TMTimerToMilli(pVM->vmm.s.pYieldTimer, u64Expire - u64Now);
1046	TMTimerStop(pVM->vmm.s.pYieldTimer);
1047	}
1048	pVM->vmm.s.u64LastYield = RTTimeNanoTS();
1049	}
1050
1051
1052	/**
1053	* Stops the CPU yielder.
1054	*
1055	* @param pVM The VM handle.
1056	*/
1057	VMMR3DECL(void) VMMR3YieldStop(PVM pVM)
1058	{
1059	if (!pVM->vmm.s.cYieldResumeMillies)
1060	TMTimerStop(pVM->vmm.s.pYieldTimer);
1061	pVM->vmm.s.cYieldResumeMillies = pVM->vmm.s.cYieldEveryMillies;
1062	pVM->vmm.s.u64LastYield = RTTimeNanoTS();
1063	}
1064
1065
1066	/**
1067	* Resumes the CPU yielder when it has been a suspended or stopped.
1068	*
1069	* @param pVM The VM handle.
1070	*/
1071	VMMR3DECL(void) VMMR3YieldResume(PVM pVM)
1072	{
1073	if (pVM->vmm.s.cYieldResumeMillies)
1074	{
1075	TMTimerSetMillies(pVM->vmm.s.pYieldTimer, pVM->vmm.s.cYieldResumeMillies);
1076	pVM->vmm.s.cYieldResumeMillies = 0;
1077	}
1078	}
1079
1080
1081	/**
1082	* Internal timer callback function.
1083	*
1084	* @param pVM The VM.
1085	* @param pTimer The timer handle.
1086	* @param pvUser User argument specified upon timer creation.
1087	*/
1088	static DECLCALLBACK(void) vmmR3YieldEMT(PVM pVM, PTMTIMER pTimer, void *pvUser)
1089	{
1090	/*
1091	* This really needs some careful tuning. While we shouldn't be too greedy since
1092	* that'll cause the rest of the system to stop up, we shouldn't be too nice either
1093	* because that'll cause us to stop up.
1094	*
1095	* The current logic is to use the default interval when there is no lag worth
1096	* mentioning, but when we start accumulating lag we don't bother yielding at all.
1097	*
1098	* (This depends on the TMCLOCK_VIRTUAL_SYNC to be scheduled before TMCLOCK_REAL
1099	* so the lag is up to date.)
1100	*/
1101	const uint64_t u64Lag = TMVirtualSyncGetLag(pVM);
1102	if ( u64Lag < 50000000 /* 50ms */
1103	\|\| ( u64Lag < 1000000000 /* 1s */
1104	&& RTTimeNanoTS() - pVM->vmm.s.u64LastYield < 500000000 /* 500 ms */)
1105	)
1106	{
1107	uint64_t u64Elapsed = RTTimeNanoTS();
1108	pVM->vmm.s.u64LastYield = u64Elapsed;
1109
1110	RTThreadYield();
1111
1112	#ifdef LOG_ENABLED
1113	u64Elapsed = RTTimeNanoTS() - u64Elapsed;
1114	Log(("vmmR3YieldEMT: %RI64 ns\n", u64Elapsed));
1115	#endif
1116	}
1117	TMTimerSetMillies(pTimer, pVM->vmm.s.cYieldEveryMillies);
1118	}
1119
1120
1121	/**
1122	* Executes guest code in the raw-mode context.
1123	*
1124	* @param pVM VM handle.
1125	* @param pVCpu The VMCPU to operate on.
1126	*/
1127	VMMR3DECL(int) VMMR3RawRunGC(PVM pVM, PVMCPU pVCpu)
1128	{
1129	Log2(("VMMR3RawRunGC: (cs:eip=%04x:%08x)\n", CPUMGetGuestCS(pVCpu), CPUMGetGuestEIP(pVCpu)));
1130
1131	AssertReturn(pVM->cCPUs == 1, VERR_RAW_MODE_INVALID_SMP);
1132
1133	/*
1134	* Set the EIP and ESP.
1135	*/
1136	CPUMSetHyperEIP(pVCpu, CPUMGetGuestEFlags(pVCpu) & X86_EFL_VM
1137	? pVM->vmm.s.pfnCPUMRCResumeGuestV86
1138	: pVM->vmm.s.pfnCPUMRCResumeGuest);
1139	CPUMSetHyperESP(pVCpu, pVCpu->vmm.s.pbEMTStackBottomRC);
1140
1141	/*
1142	* We hide log flushes (outer) and hypervisor interrupts (inner).
1143	*/
1144	for (;;)
1145	{
1146	#ifdef VBOX_STRICT
1147	if (RT_UNLIKELY(!CPUMGetHyperCR3(pVCpu) \|\| CPUMGetHyperCR3(pVCpu) != PGMGetHyperCR3(pVCpu)))
1148	EMR3FatalError(pVCpu, VERR_VMM_HYPER_CR3_MISMATCH);
1149	PGMMapCheck(pVM);
1150	#endif
1151	int rc;
1152	do
1153	{
1154	#ifdef NO_SUPCALLR0VMM
1155	rc = VERR_GENERAL_FAILURE;
1156	#else
1157	rc = SUPR3CallVMMR0Fast(pVM->pVMR0, VMMR0_DO_RAW_RUN, 0);
1158	if (RT_LIKELY(rc == VINF_SUCCESS))
1159	rc = pVCpu->vmm.s.iLastGZRc;
1160	#endif
1161	} while (rc == VINF_EM_RAW_INTERRUPT_HYPER);
1162
1163	/*
1164	* Flush the logs.
1165	*/
1166	#ifdef LOG_ENABLED
1167	PRTLOGGERRC pLogger = pVM->vmm.s.pRCLoggerR3;
1168	if ( pLogger
1169	&& pLogger->offScratch > 0)
1170	RTLogFlushRC(NULL, pLogger);
1171	#endif
1172	#ifdef VBOX_WITH_RC_RELEASE_LOGGING
1173	PRTLOGGERRC pRelLogger = pVM->vmm.s.pRCRelLoggerR3;
1174	if (RT_UNLIKELY(pRelLogger && pRelLogger->offScratch > 0))
1175	RTLogFlushRC(RTLogRelDefaultInstance(), pRelLogger);
1176	#endif
1177	if (rc != VINF_VMM_CALL_HOST)
1178	{
1179	Log2(("VMMR3RawRunGC: returns %Rrc (cs:eip=%04x:%08x)\n", rc, CPUMGetGuestCS(pVCpu), CPUMGetGuestEIP(pVCpu)));
1180	return rc;
1181	}
1182	rc = vmmR3ServiceCallRing3Request(pVM, pVCpu);
1183	if (RT_FAILURE(rc))
1184	return rc;
1185	/* Resume GC */
1186	}
1187	}
1188
1189
1190	/**
1191	* Executes guest code (Intel VT-x and AMD-V).
1192	*
1193	* @param pVM VM handle.
1194	* @param pVCpu The VMCPU to operate on.
1195	*/
1196	VMMR3DECL(int) VMMR3HwAccRunGC(PVM pVM, PVMCPU pVCpu)
1197	{
1198	Log2(("VMMR3HwAccRunGC: (cs:eip=%04x:%08x)\n", CPUMGetGuestCS(pVCpu), CPUMGetGuestEIP(pVCpu)));
1199
1200	for (;;)
1201	{
1202	int rc;
1203	do
1204	{
1205	#ifdef NO_SUPCALLR0VMM
1206	rc = VERR_GENERAL_FAILURE;
1207	#else
1208	rc = SUPR3CallVMMR0Fast(pVM->pVMR0, VMMR0_DO_HWACC_RUN, pVCpu->idCpu);
1209	if (RT_LIKELY(rc == VINF_SUCCESS))
1210	rc = pVCpu->vmm.s.iLastGZRc;
1211	#endif
1212	} while (rc == VINF_EM_RAW_INTERRUPT_HYPER);
1213
1214	#ifdef LOG_ENABLED
1215	/*
1216	* Flush the log
1217	*/
1218	PVMMR0LOGGER pR0LoggerR3 = pVCpu->vmm.s.pR0LoggerR3;
1219	if ( pR0LoggerR3
1220	&& pR0LoggerR3->Logger.offScratch > 0)
1221	RTLogFlushToLogger(&pR0LoggerR3->Logger, NULL);
1222	#endif /* !LOG_ENABLED */
1223	if (rc != VINF_VMM_CALL_HOST)
1224	{
1225	Log2(("VMMR3HwAccRunGC: returns %Rrc (cs:eip=%04x:%08x)\n", rc, CPUMGetGuestCS(pVCpu), CPUMGetGuestEIP(pVCpu)));
1226	return rc;
1227	}
1228	rc = vmmR3ServiceCallRing3Request(pVM, pVCpu);
1229	if (RT_FAILURE(rc))
1230	return rc;
1231	/* Resume R0 */
1232	}
1233	}
1234
1235	/**
1236	* VCPU worker for VMMSendSipi.
1237	*
1238	* @param pVM The VM to operate on.
1239	* @param idCpu Virtual CPU to perform SIPI on
1240	* @param uVector SIPI vector
1241	*/
1242	DECLCALLBACK(int) vmmR3SendSipi(PVM pVM, VMCPUID idCpu, uint32_t uVector)
1243	{
1244	PVMCPU pVCpu = VMMGetCpuById(pVM, idCpu);
1245	VMCPU_ASSERT_EMT(pVCpu);
1246
1247	/** @todo what are we supposed to do if the processor is already running? */
1248	if (EMGetState(pVCpu) != EMSTATE_WAIT_SIPI)
1249	return VERR_ACCESS_DENIED;
1250
1251
1252	PCPUMCTX pCtx = CPUMQueryGuestCtxPtr(pVCpu);
1253
1254	pCtx->cs = uVector << 8;
1255	pCtx->csHid.u64Base = uVector << 12;
1256	pCtx->csHid.u32Limit = 0x0000ffff;
1257	pCtx->rip = 0;
1258
1259	Log(("vmmR3SendSipi for VCPU %d with vector %x\n", uVector));
1260
1261	# if 1 /* If we keep the EMSTATE_WAIT_SIPI method, then move this to EM.cpp. */
1262	EMSetState(pVCpu, EMSTATE_HALTED);
1263	return VINF_EM_RESCHEDULE;
1264	# else /* And if we go the VMCPU::enmState way it can stay here. */
1265	VMCPU_ASSERT_STATE(pVCpu, VMCPUSTATE_STOPPED);
1266	VMCPU_SET_STATE(pVCpu, VMCPUSTATE_STARTED);
1267	return VINF_SUCCESS;
1268	# endif
1269	}
1270
1271	DECLCALLBACK(int) vmmR3SendInitIpi(PVM pVM, VMCPUID idCpu)
1272	{
1273	PVMCPU pVCpu = VMMGetCpuById(pVM, idCpu);
1274	VMCPU_ASSERT_EMT(pVCpu);
1275
1276	Log(("vmmR3SendInitIpi for VCPU %d\n", idCpu));
1277	CPUMR3ResetCpu(pVCpu);
1278	return VINF_EM_WAIT_SIPI;
1279	}
1280
1281	/**
1282	* Sends SIPI to the virtual CPU by setting CS:EIP into vector-dependent state
1283	* and unhalting processor
1284	*
1285	* @param pVM The VM to operate on.
1286	* @param idCpu Virtual CPU to perform SIPI on
1287	* @param uVector SIPI vector
1288	*/
1289	VMMR3DECL(void) VMMR3SendSipi(PVM pVM, VMCPUID idCpu, uint32_t uVector)
1290	{
1291	AssertReturnVoid(idCpu < pVM->cCPUs);
1292
1293	PVMREQ pReq;
1294	int rc = VMR3ReqCallU(pVM->pUVM, idCpu, &pReq, 0, VMREQFLAGS_NO_WAIT,
1295	(PFNRT)vmmR3SendSipi, 3, pVM, idCpu, uVector);
1296	AssertRC(rc);
1297	}
1298
1299	/**
1300	* Sends init IPI to the virtual CPU.
1301	*
1302	* @param pVM The VM to operate on.
1303	* @param idCpu Virtual CPU to perform int IPI on
1304	*/
1305	VMMR3DECL(void) VMMR3SendInitIpi(PVM pVM, VMCPUID idCpu)
1306	{
1307	AssertReturnVoid(idCpu < pVM->cCPUs);
1308
1309	PVMREQ pReq;
1310	int rc = VMR3ReqCallU(pVM->pUVM, idCpu, &pReq, 0, VMREQFLAGS_NO_WAIT,
1311	(PFNRT)vmmR3SendInitIpi, 2, pVM, idCpu);
1312	AssertRC(rc);
1313	}
1314
1315	/**
1316	* Registers the guest memory range that can be used for patching
1317	*
1318	* @returns VBox status code.
1319	* @param pVM The VM to operate on.
1320	* @param pPatchMem Patch memory range
1321	* @param cbPatchMem Size of the memory range
1322	*/
1323	VMMR3DECL(int) VMMR3RegisterPatchMemory(PVM pVM, RTGCPTR pPatchMem, unsigned cbPatchMem)
1324	{
1325	if (HWACCMIsEnabled(pVM))
1326	return HWACMMR3EnablePatching(pVM, pPatchMem, cbPatchMem);
1327
1328	return VERR_NOT_SUPPORTED;
1329	}
1330
1331	/**
1332	* Deregisters the guest memory range that can be used for patching
1333	*
1334	* @returns VBox status code.
1335	* @param pVM The VM to operate on.
1336	* @param pPatchMem Patch memory range
1337	* @param cbPatchMem Size of the memory range
1338	*/
1339	VMMR3DECL(int) VMMR3DeregisterPatchMemory(PVM pVM, RTGCPTR pPatchMem, unsigned cbPatchMem)
1340	{
1341	if (HWACCMIsEnabled(pVM))
1342	return HWACMMR3DisablePatching(pVM, pPatchMem, cbPatchMem);
1343
1344	return VINF_SUCCESS;
1345	}
1346
1347
1348	/**
1349	* VCPU worker for VMMR3SynchronizeAllVCpus.
1350	*
1351	* @param pVM The VM to operate on.
1352	* @param idCpu Virtual CPU to perform SIPI on
1353	* @param uVector SIPI vector
1354	*/
1355	DECLCALLBACK(int) vmmR3SyncVCpu(PVM pVM)
1356	{
1357	/* Block until the job in the caller has finished. */
1358	RTCritSectEnter(&pVM->vmm.s.CritSectSync);
1359	RTCritSectLeave(&pVM->vmm.s.CritSectSync);
1360	return VINF_SUCCESS;
1361	}
1362
1363
1364	/**
1365	* Atomically execute a callback handler
1366	* Note: This is very expensive; avoid using it frequently!
1367	*
1368	* @param pVM The VM to operate on.
1369	* @param pfnHandler Callback handler
1370	* @param pvUser User specified parameter
1371	*
1372	* @thread EMT
1373	*/
1374	VMMR3DECL(int) VMMR3AtomicExecuteHandler(PVM pVM, PFNATOMICHANDLER pfnHandler, void *pvUser)
1375	{
1376	int rc;
1377	PVMCPU pVCpu = VMMGetCpu(pVM);
1378	AssertReturn(pVCpu, VERR_VM_THREAD_NOT_EMT);
1379
1380	/* Shortcut for the uniprocessor case. */
1381	if (pVM->cCPUs == 1)
1382	return pfnHandler(pVM, pvUser);
1383
1384	RTCritSectEnter(&pVM->vmm.s.CritSectSync);
1385	for (VMCPUID idCpu = 0; idCpu < pVM->cCPUs; idCpu++)
1386	{
1387	if (idCpu != pVCpu->idCpu)
1388	{
1389	rc = VMR3ReqCallU(pVM->pUVM, idCpu, NULL, 0, VMREQFLAGS_NO_WAIT,
1390	(PFNRT)vmmR3SyncVCpu, 1, pVM);
1391	AssertRC(rc);
1392	}
1393	}
1394	/* Wait until all other VCPUs are waiting for us. */
1395	while (RTCritSectGetWaiters(&pVM->vmm.s.CritSectSync) != (int32_t)(pVM->cCPUs - 1))
1396	RTThreadSleep(1);
1397
1398	rc = pfnHandler(pVM, pvUser);
1399	RTCritSectLeave(&pVM->vmm.s.CritSectSync);
1400	return rc;
1401	}
1402
1403
1404	/**
1405	* Count returns and have the last non-caller EMT wake up the caller.
1406	*
1407	* @param pVM The VM handle.
1408	*/
1409	DECL_FORCE_INLINE(void) vmmR3EmtRendezvousNonCallerReturn(PVM pVM)
1410	{
1411	uint32_t cReturned = ASMAtomicIncU32(&pVM->vmm.s.cRendezvousEmtsReturned);
1412	if (cReturned == pVM->cCPUs - 1U)
1413	{
1414	int rc = RTSemEventSignal(pVM->vmm.s.hEvtRendezvousDoneCaller);
1415	AssertLogRelRC(rc);
1416	}
1417	}
1418
1419
1420	/**
1421	* Common worker for VMMR3EmtRendezvous and VMMR3EmtRendezvousFF.
1422	*
1423	* @param pVM The VM handle.
1424	* @param pVCpu The VMCPU structure for the calling EMT.
1425	* @param fIsCaller Whether we're the VMMR3EmtRendezvous caller or
1426	* not.
1427	* @param fFlags The flags.
1428	* @param pfnRendezvous The callback.
1429	* @param pvUser The user argument for the callback.
1430	*/
1431	static void vmmR3EmtRendezvousCommon(PVM pVM, PVMCPU pVCpu, bool fIsCaller,
1432	uint32_t fFlags, PFNVMMEMTRENDEZVOUS pfnRendezvous, void *pvUser)
1433	{
1434	int rc;
1435
1436	/*
1437	* Enter, the last EMT triggers the next callback phase.
1438	*/
1439	uint32_t cEntered = ASMAtomicIncU32(&pVM->vmm.s.cRendezvousEmtsEntered);
1440	if (cEntered != pVM->cCPUs)
1441	{
1442	if ((fFlags & VMMEMTRENDEZVOUS_FLAGS_TYPE_MASK) == VMMEMTRENDEZVOUS_FLAGS_TYPE_ONE_BY_ONE)
1443	{
1444	/* Wait for our turn. */
1445	rc = RTSemEventWait(pVM->vmm.s.hEvtRendezvousEnterOneByOne, RT_INDEFINITE_WAIT);
1446	AssertLogRelRC(rc);
1447	}
1448	else if ((fFlags & VMMEMTRENDEZVOUS_FLAGS_TYPE_MASK) == VMMEMTRENDEZVOUS_FLAGS_TYPE_ALL_AT_ONCE)
1449	{
1450	/* Wait for the last EMT to arrive and wake everyone up. */
1451	rc = RTSemEventMultiWait(pVM->vmm.s.hEvtMulRendezvousEnterAllAtOnce, RT_INDEFINITE_WAIT);
1452	AssertLogRelRC(rc);
1453	}
1454	else
1455	{
1456	Assert((fFlags & VMMEMTRENDEZVOUS_FLAGS_TYPE_MASK) == VMMEMTRENDEZVOUS_FLAGS_TYPE_ONCE);
1457
1458	/*
1459	* The execute once is handled specially to optimize the code flow.
1460	*
1461	* The last EMT to arrive will perform the callback and the other
1462	* EMTs will wait on the Done/DoneCaller semaphores (instead of
1463	* the EnterOneByOne/AllAtOnce) in the meanwhile. When the callback
1464	* returns, that EMT will initiate the normal return sequence.
1465	*/
1466	if (!fIsCaller)
1467	{
1468	rc = RTSemEventMultiWait(pVM->vmm.s.hEvtMulRendezvousDone, RT_INDEFINITE_WAIT);
1469	AssertLogRelRC(rc);
1470
1471	vmmR3EmtRendezvousNonCallerReturn(pVM);
1472	}
1473	return;
1474	}
1475	}
1476	else
1477	{
1478	/*
1479	* All EMTs are waiting, clear the FF and take action according to the
1480	* execution method.
1481	*/
1482	VM_FF_CLEAR(pVM, VM_FF_EMT_RENDEZVOUS);
1483
1484	if ((fFlags & VMMEMTRENDEZVOUS_FLAGS_TYPE_MASK) == VMMEMTRENDEZVOUS_FLAGS_TYPE_ALL_AT_ONCE)
1485	{
1486	/* Wake up everyone. */
1487	rc = RTSemEventMultiSignal(pVM->vmm.s.hEvtMulRendezvousEnterAllAtOnce);
1488	AssertLogRelRC(rc);
1489	}
1490	/* else: execute the handler on the current EMT and wake up one or more threads afterwards. */
1491	}
1492
1493
1494	/*
1495	* Do the callback and update the status if necessary.
1496	*/
1497	rc = pfnRendezvous(pVM, pVCpu, pvUser);
1498	if (rc != VINF_SUCCESS)
1499	{
1500	int32_t i32RendezvousStatus;
1501	do
1502	{
1503	i32RendezvousStatus = ASMAtomicUoReadS32(&pVM->vmm.s.i32RendezvousStatus);
1504	if ( RT_FAILURE(i32RendezvousStatus)
1505	\|\| ( i32RendezvousStatus != VINF_SUCCESS
1506	&& RT_SUCCESS(rc)))
1507	break;
1508	} while (!ASMAtomicCmpXchgS32(&pVM->vmm.s.i32RendezvousStatus, rc, i32RendezvousStatus));
1509	}
1510
1511	/*
1512	* Increment the done counter and take action depending on whether we're
1513	* the last to finish callback execution.
1514	*/
1515	uint32_t cDone = ASMAtomicIncU32(&pVM->vmm.s.cRendezvousEmtsDone);
1516	if ( cDone != pVM->cCPUs
1517	&& (fFlags & VMMEMTRENDEZVOUS_FLAGS_TYPE_MASK) != VMMEMTRENDEZVOUS_FLAGS_TYPE_ONCE)
1518	{
1519	/* Signal the next EMT? */
1520	if ((fFlags & VMMEMTRENDEZVOUS_FLAGS_TYPE_MASK) == VMMEMTRENDEZVOUS_FLAGS_TYPE_ONE_BY_ONE)
1521	{
1522	rc = RTSemEventSignal(pVM->vmm.s.hEvtRendezvousEnterOneByOne);
1523	AssertLogRelRC(rc);
1524	}
1525
1526	/* Wait for the rest to finish (the caller waits on hEvtRendezvousDoneCaller). */
1527	if (!fIsCaller)
1528	{
1529	rc = RTSemEventMultiWait(pVM->vmm.s.hEvtMulRendezvousDone, RT_INDEFINITE_WAIT);
1530	AssertLogRelRC(rc);
1531	}
1532	}
1533	else
1534	{
1535	/* Callback execution is all done, tell the rest to return. */
1536	rc = RTSemEventMultiSignal(pVM->vmm.s.hEvtMulRendezvousDone);
1537	AssertLogRelRC(rc);
1538	}
1539
1540	if (!fIsCaller)
1541	vmmR3EmtRendezvousNonCallerReturn(pVM);
1542	}
1543
1544
1545	/**
1546	* Called in response to VM_FF_EMT_RENDEZVOUS.
1547	*
1548	* @param pVM The VM handle
1549	* @param pVCpu The handle of the calling EMT.
1550	*
1551	* @thread EMT
1552	*/
1553	VMMR3DECL(void) VMMR3EmtRendezvousFF(PVM pVM, PVMCPU pVCpu)
1554	{
1555	vmmR3EmtRendezvousCommon(pVM, pVCpu, false /* fIsCaller */, pVM->vmm.s.fRendezvousFlags,
1556	pVM->vmm.s.pfnRendezvous, pVM->vmm.s.pvRendezvousUser);
1557	}
1558
1559
1560	/**
1561	* EMT rendezvous.
1562	*
1563	* Gathers all the EMTs and execute some code on each of them, either in a one
1564	* by one fashion or all at once.
1565	*
1566	* @returns VBox status code. This will be the first error or, if all succeed,
1567	* the first informational status code.
1568	* @retval VERR_VM_THREAD_NOT_EMT if the caller is not an EMT.
1569	*
1570	* @param pVM The VM handle.
1571	* @param fFlags Flags indicating execution methods. See
1572	* grp_VMMR3EmtRendezvous_fFlags.
1573	* @param pfnRendezvous The callback.
1574	* @param pvUser User argument for the callback.
1575	*
1576	* @thread EMT
1577	*/
1578	VMMR3DECL(int) VMMR3EmtRendezvous(PVM pVM, uint32_t fFlags, PFNVMMEMTRENDEZVOUS pfnRendezvous, void *pvUser)
1579	{
1580	/*
1581	* Validate input.
1582	*/
1583	PVMCPU pVCpu = VMMGetCpu(pVM);
1584	AssertReturn(pVCpu, VERR_VM_THREAD_NOT_EMT);
1585	AssertMsg( (fFlags & VMMEMTRENDEZVOUS_FLAGS_TYPE_MASK) != VMMEMTRENDEZVOUS_FLAGS_TYPE_INVALID
1586	&& !(fFlags & ~VMMEMTRENDEZVOUS_FLAGS_VALID_MASK), ("%#x\n", fFlags));
1587
1588	int rc;
1589	if (pVM->cCPUs == 1)
1590	/*
1591	* Shortcut for the single EMT case.
1592	*/
1593	rc = pfnRendezvous(pVM, pVCpu, pvUser);
1594	else
1595	{
1596	/*
1597	* Spin lock. If busy, wait for the other EMT to finish while keeping a
1598	* lookout of the RENDEZVOUS FF.
1599	*/
1600	while (!ASMAtomicCmpXchgU32(&pVM->vmm.s.u32RendezvousLock, 0x77778888, 0))
1601	{
1602	if (VM_FF_ISPENDING(pVM, VM_FF_EMT_RENDEZVOUS))
1603	VMMR3EmtRendezvousFF(pVM, pVCpu);
1604	}
1605	Assert(!VM_FF_ISPENDING(pVM, VM_FF_EMT_RENDEZVOUS));
1606
1607	/*
1608	* Clear the slate. This is a semaphore ping-pong orgy. :-)
1609	*/
1610	rc = RTSemEventWait(pVM->vmm.s.hEvtRendezvousEnterOneByOne, 0); AssertLogRelMsg(rc == VERR_TIMEOUT \|\| rc == VINF_SUCCESS, ("%Rrc\n", rc));
1611	rc = RTSemEventMultiReset(pVM->vmm.s.hEvtMulRendezvousEnterAllAtOnce); AssertLogRelRC(rc);
1612	rc = RTSemEventMultiReset(pVM->vmm.s.hEvtMulRendezvousDone); AssertLogRelRC(rc);
1613	rc = RTSemEventWait(pVM->vmm.s.hEvtRendezvousDoneCaller, 0); AssertLogRelMsg(rc == VERR_TIMEOUT \|\| rc == VINF_SUCCESS, ("%Rrc\n", rc));
1614	ASMAtomicWriteU32(&pVM->vmm.s.cRendezvousEmtsEntered, 0);
1615	ASMAtomicWriteU32(&pVM->vmm.s.cRendezvousEmtsDone, 0);
1616	ASMAtomicWriteU32(&pVM->vmm.s.cRendezvousEmtsReturned, 0);
1617	ASMAtomicWriteS32(&pVM->vmm.s.i32RendezvousStatus, VINF_SUCCESS);
1618	ASMAtomicWritePtr((void * volatile )&pVM->vmm.s.pfnRendezvous, (void )(uintptr_t)pfnRendezvous);
1619	ASMAtomicWritePtr(&pVM->vmm.s.pvRendezvousUser, pvUser);
1620	ASMAtomicWriteU32(&pVM->vmm.s.fRendezvousFlags, fFlags);
1621
1622	/*
1623	* Set the FF and poke the other EMTs.
1624	*/
1625	VM_FF_SET(pVM, VM_FF_EMT_RENDEZVOUS);
1626	VMR3NotifyGlobalFFU(pVM->pUVM, VMNOTIFYFF_FLAGS_POKE);
1627
1628	/*
1629	* Do the same ourselves.
1630	*/
1631	vmmR3EmtRendezvousCommon(pVM, pVCpu, true /* fIsCaller */, fFlags, pfnRendezvous, pvUser);
1632
1633	/*
1634	* The caller waits for the other EMTs to be done and return before doing
1635	* the cleanup. This makes away with wakeup / reset races we would otherwise
1636	* risk in the multiple release event semaphore code (hEvtRendezvousDoneCaller).
1637	*/
1638	rc = RTSemEventWait(pVM->vmm.s.hEvtRendezvousDoneCaller, RT_INDEFINITE_WAIT);
1639	AssertLogRelRC(rc);
1640
1641	/*
1642	* Get the return code and clean up a little bit.
1643	*/
1644	rc = pVM->vmm.s.i32RendezvousStatus;
1645	ASMAtomicWritePtr((void * volatile *)&pVM->vmm.s.pfnRendezvous, NULL);
1646
1647	ASMAtomicWriteU32(&pVM->vmm.s.u32RendezvousLock, 0);
1648	}
1649
1650	return rc;
1651	}
1652
1653
1654	/**
1655	* Read from the ring 0 jump buffer stack
1656	*
1657	* @returns VBox status code.
1658	*
1659	* @param pVM Pointer to the shared VM structure.
1660	* @param idCpu The ID of the source CPU context (for the address).
1661	* @param pAddress Where to start reading.
1662	* @param pvBuf Where to store the data we've read.
1663	* @param cbRead The number of bytes to read.
1664	*/
1665	VMMR3DECL(int) VMMR3ReadR0Stack(PVM pVM, VMCPUID idCpu, RTHCUINTPTR pAddress, void *pvBuf, size_t cbRead)
1666	{
1667	PVMCPU pVCpu = VMMGetCpuById(pVM, idCpu);
1668	AssertReturn(pVCpu, VERR_INVALID_PARAMETER);
1669
1670	RTHCUINTPTR offset = pVCpu->vmm.s.CallRing3JmpBufR0.SpCheck - pAddress;
1671	if (offset >= pVCpu->vmm.s.CallRing3JmpBufR0.cbSavedStack)
1672	return VERR_INVALID_POINTER;
1673
1674	memcpy(pvBuf, pVCpu->vmm.s.pbEMTStackR3 + pVCpu->vmm.s.CallRing3JmpBufR0.cbSavedStack - offset, cbRead);
1675	return VINF_SUCCESS;
1676	}
1677
1678
1679	/**
1680	* Calls a RC function.
1681	*
1682	* @param pVM The VM handle.
1683	* @param RCPtrEntry The address of the RC function.
1684	* @param cArgs The number of arguments in the ....
1685	* @param ... Arguments to the function.
1686	*/
1687	VMMR3DECL(int) VMMR3CallRC(PVM pVM, RTRCPTR RCPtrEntry, unsigned cArgs, ...)
1688	{
1689	va_list args;
1690	va_start(args, cArgs);
1691	int rc = VMMR3CallRCV(pVM, RCPtrEntry, cArgs, args);
1692	va_end(args);
1693	return rc;
1694	}
1695
1696
1697	/**
1698	* Calls a RC function.
1699	*
1700	* @param pVM The VM handle.
1701	* @param RCPtrEntry The address of the RC function.
1702	* @param cArgs The number of arguments in the ....
1703	* @param args Arguments to the function.
1704	*/
1705	VMMR3DECL(int) VMMR3CallRCV(PVM pVM, RTRCPTR RCPtrEntry, unsigned cArgs, va_list args)
1706	{
1707	/* Raw mode implies 1 VCPU. */
1708	AssertReturn(pVM->cCPUs == 1, VERR_RAW_MODE_INVALID_SMP);
1709	PVMCPU pVCpu = &pVM->aCpus[0];
1710
1711	Log2(("VMMR3CallGCV: RCPtrEntry=%RRv cArgs=%d\n", RCPtrEntry, cArgs));
1712
1713	/*
1714	* Setup the call frame using the trampoline.
1715	*/
1716	CPUMHyperSetCtxCore(pVCpu, NULL);
1717	memset(pVCpu->vmm.s.pbEMTStackR3, 0xaa, VMM_STACK_SIZE); /* Clear the stack. */
1718	CPUMSetHyperESP(pVCpu, pVCpu->vmm.s.pbEMTStackBottomRC - cArgs * sizeof(RTGCUINTPTR32));
1719	PRTGCUINTPTR32 pFrame = (PRTGCUINTPTR32)(pVCpu->vmm.s.pbEMTStackR3 + VMM_STACK_SIZE) - cArgs;
1720	int i = cArgs;
1721	while (i-- > 0)
1722	*pFrame++ = va_arg(args, RTGCUINTPTR32);
1723
1724	CPUMPushHyper(pVCpu, cArgs * sizeof(RTGCUINTPTR32)); /* stack frame size */
1725	CPUMPushHyper(pVCpu, RCPtrEntry); /* what to call */
1726	CPUMSetHyperEIP(pVCpu, pVM->vmm.s.pfnCallTrampolineRC);
1727
1728	/*
1729	* We hide log flushes (outer) and hypervisor interrupts (inner).
1730	*/
1731	for (;;)
1732	{
1733	int rc;
1734	Assert(CPUMGetHyperCR3(pVCpu) && CPUMGetHyperCR3(pVCpu) == PGMGetHyperCR3(pVCpu));
1735	do
1736	{
1737	#ifdef NO_SUPCALLR0VMM
1738	rc = VERR_GENERAL_FAILURE;
1739	#else
1740	rc = SUPR3CallVMMR0Fast(pVM->pVMR0, VMMR0_DO_RAW_RUN, 0);
1741	if (RT_LIKELY(rc == VINF_SUCCESS))
1742	rc = pVCpu->vmm.s.iLastGZRc;
1743	#endif
1744	} while (rc == VINF_EM_RAW_INTERRUPT_HYPER);
1745
1746	/*
1747	* Flush the logs.
1748	*/
1749	#ifdef LOG_ENABLED
1750	PRTLOGGERRC pLogger = pVM->vmm.s.pRCLoggerR3;
1751	if ( pLogger
1752	&& pLogger->offScratch > 0)
1753	RTLogFlushRC(NULL, pLogger);
1754	#endif
1755	#ifdef VBOX_WITH_RC_RELEASE_LOGGING
1756	PRTLOGGERRC pRelLogger = pVM->vmm.s.pRCRelLoggerR3;
1757	if (RT_UNLIKELY(pRelLogger && pRelLogger->offScratch > 0))
1758	RTLogFlushRC(RTLogRelDefaultInstance(), pRelLogger);
1759	#endif
1760	if (rc == VERR_TRPM_PANIC \|\| rc == VERR_TRPM_DONT_PANIC)
1761	VMMR3FatalDump(pVM, pVCpu, rc);
1762	if (rc != VINF_VMM_CALL_HOST)
1763	{
1764	Log2(("VMMR3CallGCV: returns %Rrc (cs:eip=%04x:%08x)\n", rc, CPUMGetGuestCS(pVCpu), CPUMGetGuestEIP(pVCpu)));
1765	return rc;
1766	}
1767	rc = vmmR3ServiceCallRing3Request(pVM, pVCpu);
1768	if (RT_FAILURE(rc))
1769	return rc;
1770	}
1771	}
1772
1773
1774	/**
1775	* Wrapper for SUPR3CallVMMR0Ex which will deal with VINF_VMM_CALL_HOST returns.
1776	*
1777	* @returns VBox status code.
1778	* @param pVM The VM to operate on.
1779	* @param uOperation Operation to execute.
1780	* @param u64Arg Constant argument.
1781	* @param pReqHdr Pointer to a request header. See SUPR3CallVMMR0Ex for
1782	* details.
1783	*/
1784	VMMR3DECL(int) VMMR3CallR0(PVM pVM, uint32_t uOperation, uint64_t u64Arg, PSUPVMMR0REQHDR pReqHdr)
1785	{
1786	PVMCPU pVCpu = VMMGetCpu(pVM);
1787	AssertReturn(pVCpu, VERR_VM_THREAD_NOT_EMT);
1788
1789	/*
1790	* Call Ring-0 entry with init code.
1791	*/
1792	int rc;
1793	for (;;)
1794	{
1795	#ifdef NO_SUPCALLR0VMM
1796	rc = VERR_GENERAL_FAILURE;
1797	#else
1798	rc = SUPR3CallVMMR0Ex(pVM->pVMR0, pVCpu->idCpu, uOperation, u64Arg, pReqHdr);
1799	#endif
1800	/*
1801	* Flush the logs.
1802	*/
1803	#ifdef LOG_ENABLED
1804	if ( pVCpu->vmm.s.pR0LoggerR3
1805	&& pVCpu->vmm.s.pR0LoggerR3->Logger.offScratch > 0)
1806	RTLogFlushToLogger(&pVCpu->vmm.s.pR0LoggerR3->Logger, NULL);
1807	#endif
1808	if (rc != VINF_VMM_CALL_HOST)
1809	break;
1810	rc = vmmR3ServiceCallRing3Request(pVM, pVCpu);
1811	if (RT_FAILURE(rc) \|\| (rc >= VINF_EM_FIRST && rc <= VINF_EM_LAST))
1812	break;
1813	/* Resume R0 */
1814	}
1815
1816	AssertLogRelMsgReturn(rc == VINF_SUCCESS \|\| VBOX_FAILURE(rc),
1817	("uOperation=%u rc=%Rrc\n", uOperation, rc),
1818	VERR_INTERNAL_ERROR);
1819	return rc;
1820	}
1821
1822
1823	/**
1824	* Resumes executing hypervisor code when interrupted by a queue flush or a
1825	* debug event.
1826	*
1827	* @returns VBox status code.
1828	* @param pVM VM handle.
1829	* @param pVCpu VMCPU handle.
1830	*/
1831	VMMR3DECL(int) VMMR3ResumeHyper(PVM pVM, PVMCPU pVCpu)
1832	{
1833	Log(("VMMR3ResumeHyper: eip=%RRv esp=%RRv\n", CPUMGetHyperEIP(pVCpu), CPUMGetHyperESP(pVCpu)));
1834	AssertReturn(pVM->cCPUs == 1, VERR_RAW_MODE_INVALID_SMP);
1835
1836	/*
1837	* We hide log flushes (outer) and hypervisor interrupts (inner).
1838	*/
1839	for (;;)
1840	{
1841	int rc;
1842	Assert(CPUMGetHyperCR3(pVCpu) && CPUMGetHyperCR3(pVCpu) == PGMGetHyperCR3(pVCpu));
1843	do
1844	{
1845	#ifdef NO_SUPCALLR0VMM
1846	rc = VERR_GENERAL_FAILURE;
1847	#else
1848	rc = SUPR3CallVMMR0Fast(pVM->pVMR0, VMMR0_DO_RAW_RUN, 0);
1849	if (RT_LIKELY(rc == VINF_SUCCESS))
1850	rc = pVCpu->vmm.s.iLastGZRc;
1851	#endif
1852	} while (rc == VINF_EM_RAW_INTERRUPT_HYPER);
1853
1854	/*
1855	* Flush the loggers,
1856	*/
1857	#ifdef LOG_ENABLED
1858	PRTLOGGERRC pLogger = pVM->vmm.s.pRCLoggerR3;
1859	if ( pLogger
1860	&& pLogger->offScratch > 0)
1861	RTLogFlushRC(NULL, pLogger);
1862	#endif
1863	#ifdef VBOX_WITH_RC_RELEASE_LOGGING
1864	PRTLOGGERRC pRelLogger = pVM->vmm.s.pRCRelLoggerR3;
1865	if (RT_UNLIKELY(pRelLogger && pRelLogger->offScratch > 0))
1866	RTLogFlushRC(RTLogRelDefaultInstance(), pRelLogger);
1867	#endif
1868	if (rc == VERR_TRPM_PANIC \|\| rc == VERR_TRPM_DONT_PANIC)
1869	VMMR3FatalDump(pVM, pVCpu, rc);
1870	if (rc != VINF_VMM_CALL_HOST)
1871	{
1872	Log(("VMMR3ResumeHyper: returns %Rrc\n", rc));
1873	return rc;
1874	}
1875	rc = vmmR3ServiceCallRing3Request(pVM, pVCpu);
1876	if (RT_FAILURE(rc))
1877	return rc;
1878	}
1879	}
1880
1881
1882	/**
1883	* Service a call to the ring-3 host code.
1884	*
1885	* @returns VBox status code.
1886	* @param pVM VM handle.
1887	* @param pVCpu VMCPU handle
1888	* @remark Careful with critsects.
1889	*/
1890	static int vmmR3ServiceCallRing3Request(PVM pVM, PVMCPU pVCpu)
1891	{
1892	/*
1893	* We must also check for pending critsect exits or else we can deadlock
1894	* when entering other critsects here.
1895	*/
1896	if (VMCPU_FF_ISPENDING(pVCpu, VMCPU_FF_PDM_CRITSECT))
1897	PDMCritSectFF(pVCpu);
1898
1899	switch (pVCpu->vmm.s.enmCallRing3Operation)
1900	{
1901	/*
1902	* Acquire the PDM lock.
1903	*/
1904	case VMMCALLRING3_PDM_LOCK:
1905	{
1906	pVCpu->vmm.s.rcCallRing3 = PDMR3LockCall(pVM);
1907	break;
1908	}
1909
1910	/*
1911	* Flush a PDM queue.
1912	*/
1913	case VMMCALLRING3_PDM_QUEUE_FLUSH:
1914	{
1915	PDMR3QueueFlushWorker(pVM, NULL);
1916	pVCpu->vmm.s.rcCallRing3 = VINF_SUCCESS;
1917	break;
1918	}
1919
1920	/*
1921	* Grow the PGM pool.
1922	*/
1923	case VMMCALLRING3_PGM_POOL_GROW:
1924	{
1925	pVCpu->vmm.s.rcCallRing3 = PGMR3PoolGrow(pVM);
1926	break;
1927	}
1928
1929	/*
1930	* Maps an page allocation chunk into ring-3 so ring-0 can use it.
1931	*/
1932	case VMMCALLRING3_PGM_MAP_CHUNK:
1933	{
1934	pVCpu->vmm.s.rcCallRing3 = PGMR3PhysChunkMap(pVM, pVCpu->vmm.s.u64CallRing3Arg);
1935	break;
1936	}
1937
1938	/*
1939	* Allocates more handy pages.
1940	*/
1941	case VMMCALLRING3_PGM_ALLOCATE_HANDY_PAGES:
1942	{
1943	pVCpu->vmm.s.rcCallRing3 = PGMR3PhysAllocateHandyPages(pVM);
1944	break;
1945	}
1946
1947	/*
1948	* Acquire the PGM lock.
1949	*/
1950	case VMMCALLRING3_PGM_LOCK:
1951	{
1952	pVCpu->vmm.s.rcCallRing3 = PGMR3LockCall(pVM);
1953	break;
1954	}
1955
1956	/*
1957	* Acquire the MM hypervisor heap lock.
1958	*/
1959	case VMMCALLRING3_MMHYPER_LOCK:
1960	{
1961	pVCpu->vmm.s.rcCallRing3 = MMR3LockCall(pVM);
1962	break;
1963	}
1964
1965	/*
1966	* Flush REM handler notifications.
1967	*/
1968	case VMMCALLRING3_REM_REPLAY_HANDLER_NOTIFICATIONS:
1969	{
1970	REMR3ReplayHandlerNotifications(pVM);
1971	pVCpu->vmm.s.rcCallRing3 = VINF_SUCCESS;
1972	break;
1973	}
1974
1975	/*
1976	* This is a noop. We just take this route to avoid unnecessary
1977	* tests in the loops.
1978	*/
1979	case VMMCALLRING3_VMM_LOGGER_FLUSH:
1980	pVCpu->vmm.s.rcCallRing3 = VINF_SUCCESS;
1981	LogAlways(("FLUSH\n"));
1982	break;
1983
1984	/*
1985	* Set the VM error message.
1986	*/
1987	case VMMCALLRING3_VM_SET_ERROR:
1988	VMR3SetErrorWorker(pVM);
1989	pVCpu->vmm.s.rcCallRing3 = VINF_SUCCESS;
1990	break;
1991
1992	/*
1993	* Set the VM runtime error message.
1994	*/
1995	case VMMCALLRING3_VM_SET_RUNTIME_ERROR:
1996	pVCpu->vmm.s.rcCallRing3 = VMR3SetRuntimeErrorWorker(pVM);
1997	break;
1998
1999	/*
2000	* Signal a ring 0 hypervisor assertion.
2001	* Cancel the longjmp operation that's in progress.
2002	*/
2003	case VMMCALLRING3_VM_R0_ASSERTION:
2004	pVCpu->vmm.s.enmCallRing3Operation = VMMCALLRING3_INVALID;
2005	pVCpu->vmm.s.CallRing3JmpBufR0.fInRing3Call = false;
2006	#ifdef RT_ARCH_X86
2007	pVCpu->vmm.s.CallRing3JmpBufR0.eip = 0;
2008	#else
2009	pVCpu->vmm.s.CallRing3JmpBufR0.rip = 0;
2010	#endif
2011	LogRel((pVM->vmm.s.szRing0AssertMsg1));
2012	LogRel((pVM->vmm.s.szRing0AssertMsg2));
2013	return VERR_VMM_RING0_ASSERTION;
2014
2015	/*
2016	* A forced switch to ring 0 for preemption purposes.
2017	*/
2018	case VMMCALLRING3_VM_R0_PREEMPT:
2019	pVCpu->vmm.s.rcCallRing3 = VINF_SUCCESS;
2020	break;
2021
2022	default:
2023	AssertMsgFailed(("enmCallRing3Operation=%d\n", pVCpu->vmm.s.enmCallRing3Operation));
2024	return VERR_INTERNAL_ERROR;
2025	}
2026
2027	pVCpu->vmm.s.enmCallRing3Operation = VMMCALLRING3_INVALID;
2028	return VINF_SUCCESS;
2029	}
2030
2031
2032	/**
2033	* Displays the Force action Flags.
2034	*
2035	* @param pVM The VM handle.
2036	* @param pHlp The output helpers.
2037	* @param pszArgs The additional arguments (ignored).
2038	*/
2039	static DECLCALLBACK(void) vmmR3InfoFF(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs)
2040	{
2041	int c;
2042	uint32_t f;
2043	#define PRINT_FLAG(prf,flag) do { \
2044	if (f & (prf##flag)) \
2045	{ \
2046	static const char *s_psz = #flag; \
2047	if (!(c % 6)) \
2048	pHlp->pfnPrintf(pHlp, "%s\n %s", c ? "," : "", s_psz); \
2049	else \
2050	pHlp->pfnPrintf(pHlp, ", %s", s_psz); \
2051	c++; \
2052	f &= ~(prf##flag); \
2053	} \
2054	} while (0)
2055
2056	#define PRINT_GROUP(prf,grp,sfx) do { \
2057	if (f & (prf##grp##sfx)) \
2058	{ \
2059	static const char *s_psz = #grp; \
2060	if (!(c % 5)) \
2061	pHlp->pfnPrintf(pHlp, "%s %s", c ? ",\n" : " Groups:\n", s_psz); \
2062	else \
2063	pHlp->pfnPrintf(pHlp, ", %s", s_psz); \
2064	c++; \
2065	} \
2066	} while (0)
2067
2068	/*
2069	* The global flags.
2070	*/
2071	const uint32_t fGlobalForcedActions = pVM->fGlobalForcedActions;
2072	pHlp->pfnPrintf(pHlp, "Global FFs: %#RX32", fGlobalForcedActions);
2073
2074	/* show the flag mnemonics */
2075	c = 0;
2076	f = fGlobalForcedActions;
2077	PRINT_FLAG(VM_FF_,TM_VIRTUAL_SYNC);
2078	PRINT_FLAG(VM_FF_,PDM_QUEUES);
2079	PRINT_FLAG(VM_FF_,PDM_DMA);
2080	PRINT_FLAG(VM_FF_,DBGF);
2081	PRINT_FLAG(VM_FF_,REQUEST);
2082	PRINT_FLAG(VM_FF_,TERMINATE);
2083	PRINT_FLAG(VM_FF_,RESET);
2084	PRINT_FLAG(VM_FF_,EMT_RENDEZVOUS);
2085	PRINT_FLAG(VM_FF_,PGM_NEED_HANDY_PAGES);
2086	PRINT_FLAG(VM_FF_,PGM_NO_MEMORY);
2087	PRINT_FLAG(VM_FF_,REM_HANDLER_NOTIFY);
2088	PRINT_FLAG(VM_FF_,DEBUG_SUSPEND);
2089	if (f)
2090	pHlp->pfnPrintf(pHlp, "%s\n Unknown bits: %#RX32\n", c ? "," : "", f);
2091	else
2092	pHlp->pfnPrintf(pHlp, "\n");
2093
2094	/* the groups */
2095	c = 0;
2096	f = fGlobalForcedActions;
2097	PRINT_GROUP(VM_FF_,EXTERNAL_SUSPENDED,_MASK);
2098	PRINT_GROUP(VM_FF_,EXTERNAL_HALTED,_MASK);
2099	PRINT_GROUP(VM_FF_,HIGH_PRIORITY_PRE,_MASK);
2100	PRINT_GROUP(VM_FF_,HIGH_PRIORITY_PRE_RAW,_MASK);
2101	PRINT_GROUP(VM_FF_,HIGH_PRIORITY_POST,_MASK);
2102	PRINT_GROUP(VM_FF_,NORMAL_PRIORITY_POST,_MASK);
2103	PRINT_GROUP(VM_FF_,NORMAL_PRIORITY,_MASK);
2104	PRINT_GROUP(VM_FF_,ALL_BUT_RAW,_MASK);
2105	if (c)
2106	pHlp->pfnPrintf(pHlp, "\n");
2107
2108	/*
2109	* Per CPU flags.
2110	*/
2111	for (VMCPUID i = 0; i < pVM->cCPUs; i++)
2112	{
2113	const uint32_t fLocalForcedActions = pVM->aCpus[i].fLocalForcedActions;
2114	pHlp->pfnPrintf(pHlp, "CPU %u FFs: %#RX32", i, fLocalForcedActions);
2115
2116	/* show the flag mnemonics */
2117	c = 0;
2118	f = fLocalForcedActions;
2119	PRINT_FLAG(VMCPU_FF_,INTERRUPT_APIC);
2120	PRINT_FLAG(VMCPU_FF_,INTERRUPT_PIC);
2121	PRINT_FLAG(VMCPU_FF_,TIMER);
2122	PRINT_FLAG(VMCPU_FF_,PDM_CRITSECT);
2123	PRINT_FLAG(VMCPU_FF_,PGM_SYNC_CR3);
2124	PRINT_FLAG(VMCPU_FF_,PGM_SYNC_CR3_NON_GLOBAL);
2125	PRINT_FLAG(VMCPU_FF_,TRPM_SYNC_IDT);
2126	PRINT_FLAG(VMCPU_FF_,SELM_SYNC_TSS);
2127	PRINT_FLAG(VMCPU_FF_,SELM_SYNC_GDT);
2128	PRINT_FLAG(VMCPU_FF_,SELM_SYNC_LDT);
2129	PRINT_FLAG(VMCPU_FF_,INHIBIT_INTERRUPTS);
2130	PRINT_FLAG(VMCPU_FF_,CSAM_SCAN_PAGE);
2131	PRINT_FLAG(VMCPU_FF_,CSAM_PENDING_ACTION);
2132	PRINT_FLAG(VMCPU_FF_,TO_R3);
2133	if (f)
2134	pHlp->pfnPrintf(pHlp, "%s\n Unknown bits: %#RX32\n", c ? "," : "", f);
2135	else
2136	pHlp->pfnPrintf(pHlp, "\n");
2137
2138	/* the groups */
2139	c = 0;
2140	f = fLocalForcedActions;
2141	PRINT_GROUP(VMCPU_FF_,EXTERNAL_SUSPENDED,_MASK);
2142	PRINT_GROUP(VMCPU_FF_,EXTERNAL_HALTED,_MASK);
2143	PRINT_GROUP(VMCPU_FF_,HIGH_PRIORITY_PRE,_MASK);
2144	PRINT_GROUP(VMCPU_FF_,HIGH_PRIORITY_PRE_RAW,_MASK);
2145	PRINT_GROUP(VMCPU_FF_,HIGH_PRIORITY_POST,_MASK);
2146	PRINT_GROUP(VMCPU_FF_,NORMAL_PRIORITY_POST,_MASK);
2147	PRINT_GROUP(VMCPU_FF_,NORMAL_PRIORITY,_MASK);
2148	PRINT_GROUP(VMCPU_FF_,RESUME_GUEST,_MASK);
2149	PRINT_GROUP(VMCPU_FF_,HWACCM_TO_R3,_MASK);
2150	PRINT_GROUP(VMCPU_FF_,ALL_BUT_RAW,_MASK);
2151	if (c)
2152	pHlp->pfnPrintf(pHlp, "\n");
2153	}
2154
2155	#undef PRINT_FLAG
2156	#undef PRINT_GROUP
2157	}
2158

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source: vbox/trunk/src/VBox/VMM/VMM.cpp@ 22480

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