VMM.cpp@ 21086

Last change on this file since 21086 was 20875, checked in by vboxsync, 16 years ago
VMM: Renamed almost all references to CallHost to CallRing3.
Property svn:eol-style set to `native` Property svn:keywords set to `Id`
File size: 73.9 KB

Line
1	/* $Id: VMM.cpp 20875 2009-06-24 02:29:17Z 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 u32Version);
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, vmmR3Save, NULL,
172	NULL, vmmR3Load, NULL);
173	if (RT_FAILURE(rc))
174	return rc;
175
176	/*
177	* Register the Ring-0 VM handle with the session for fast ioctl calls.
178	*/
179	rc = SUPR3SetVMForFastIOCtl(pVM->pVMR0);
180	if (RT_FAILURE(rc))
181	return rc;
182
183	/*
184	* Init various sub-components.
185	*/
186	rc = vmmR3SwitcherInit(pVM);
187	if (RT_SUCCESS(rc))
188	{
189	rc = vmmR3InitStacks(pVM);
190	if (RT_SUCCESS(rc))
191	{
192	rc = vmmR3InitLoggers(pVM);
193
194	#ifdef VBOX_WITH_NMI
195	/*
196	* Allocate mapping for the host APIC.
197	*/
198	if (RT_SUCCESS(rc))
199	{
200	rc = MMR3HyperReserve(pVM, PAGE_SIZE, "Host APIC", &pVM->vmm.s.GCPtrApicBase);
201	AssertRC(rc);
202	}
203	#endif
204	if (RT_SUCCESS(rc))
205	{
206	/*
207	* Debug info and statistics.
208	*/
209	DBGFR3InfoRegisterInternal(pVM, "ff", "Displays the current Forced actions Flags.", vmmR3InfoFF);
210	vmmR3InitRegisterStats(pVM);
211
212	return VINF_SUCCESS;
213	}
214	}
215	/** @todo: Need failure cleanup. */
216
217	//more todo in here?
218	//if (RT_SUCCESS(rc))
219	//{
220	//}
221	//int rc2 = vmmR3TermCoreCode(pVM);
222	//AssertRC(rc2));
223	}
224
225	return rc;
226	}
227
228
229	/**
230	* Allocate & setup the VMM RC stack(s) (for EMTs).
231	*
232	* The stacks are also used for long jumps in Ring-0.
233	*
234	* @returns VBox status code.
235	* @param pVM Pointer to the shared VM structure.
236	*
237	* @remarks The optional guard page gets it protection setup up during R3 init
238	* completion because of init order issues.
239	*/
240	static int vmmR3InitStacks(PVM pVM)
241	{
242	int rc = VINF_SUCCESS;
243
244	for (VMCPUID idCpu = 0; idCpu < pVM->cCPUs; idCpu++)
245	{
246	PVMCPU pVCpu = &pVM->aCpus[idCpu];
247
248	#ifdef VBOX_STRICT_VMM_STACK
249	rc = MMR3HyperAllocOnceNoRel(pVM, PAGE_SIZE + VMM_STACK_SIZE + PAGE_SIZE, PAGE_SIZE, MM_TAG_VMM, (void **)&pVCpu->vmm.s.pbEMTStackR3);
250	#else
251	rc = MMR3HyperAllocOnceNoRel(pVM, VMM_STACK_SIZE, PAGE_SIZE, MM_TAG_VMM, (void **)&pVCpu->vmm.s.pbEMTStackR3);
252	#endif
253	if (RT_SUCCESS(rc))
254	{
255	#ifdef VBOX_STRICT_VMM_STACK
256	pVCpu->vmm.s.pbEMTStackR3 += PAGE_SIZE;
257	#endif
258	#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
259	/* MMHyperR3ToR0 returns R3 when not doing hardware assisted virtualization. */
260	if (!VMMIsHwVirtExtForced(pVM))
261	pVCpu->vmm.s.CallRing3JmpBufR0.pvSavedStack = NIL_RTR0PTR;
262	else
263	#endif
264	pVCpu->vmm.s.CallRing3JmpBufR0.pvSavedStack = MMHyperR3ToR0(pVM, pVCpu->vmm.s.pbEMTStackR3);
265	pVCpu->vmm.s.pbEMTStackRC = MMHyperR3ToRC(pVM, pVCpu->vmm.s.pbEMTStackR3);
266	pVCpu->vmm.s.pbEMTStackBottomRC = pVCpu->vmm.s.pbEMTStackRC + VMM_STACK_SIZE;
267	AssertRelease(pVCpu->vmm.s.pbEMTStackRC);
268
269	CPUMSetHyperESP(pVCpu, pVCpu->vmm.s.pbEMTStackBottomRC);
270	}
271	}
272
273	return rc;
274	}
275
276
277	/**
278	* Initialize the loggers.
279	*
280	* @returns VBox status code.
281	* @param pVM Pointer to the shared VM structure.
282	*/
283	static int vmmR3InitLoggers(PVM pVM)
284	{
285	int rc;
286
287	/*
288	* Allocate RC & R0 Logger instances (they are finalized in the relocator).
289	*/
290	#ifdef LOG_ENABLED
291	PRTLOGGER pLogger = RTLogDefaultInstance();
292	if (pLogger)
293	{
294	pVM->vmm.s.cbRCLogger = RT_OFFSETOF(RTLOGGERRC, afGroups[pLogger->cGroups]);
295	rc = MMR3HyperAllocOnceNoRel(pVM, pVM->vmm.s.cbRCLogger, 0, MM_TAG_VMM, (void **)&pVM->vmm.s.pRCLoggerR3);
296	if (RT_FAILURE(rc))
297	return rc;
298	pVM->vmm.s.pRCLoggerRC = MMHyperR3ToRC(pVM, pVM->vmm.s.pRCLoggerR3);
299
300	# ifdef VBOX_WITH_R0_LOGGING
301	for (unsigned i = 0; i < pVM->cCPUs; i++)
302	{
303	PVMCPU pVCpu = &pVM->aCpus[i];
304
305	rc = MMR3HyperAllocOnceNoRel(pVM, RT_OFFSETOF(VMMR0LOGGER, Logger.afGroups[pLogger->cGroups]),
306	0, MM_TAG_VMM, (void **)&pVCpu->vmm.s.pR0LoggerR3);
307	if (RT_FAILURE(rc))
308	return rc;
309	pVCpu->vmm.s.pR0LoggerR3->pVM = pVM->pVMR0;
310	//pVCpu->vmm.s.pR0LoggerR3->fCreated = false;
311	pVCpu->vmm.s.pR0LoggerR3->cbLogger = RT_OFFSETOF(RTLOGGER, afGroups[pLogger->cGroups]);
312	pVCpu->vmm.s.pR0LoggerR0 = MMHyperR3ToR0(pVM, pVCpu->vmm.s.pR0LoggerR3);
313	}
314	# endif
315	}
316	#endif /* LOG_ENABLED */
317
318	#ifdef VBOX_WITH_RC_RELEASE_LOGGING
319	/*
320	* Allocate RC release logger instances (finalized in the relocator).
321	*/
322	PRTLOGGER pRelLogger = RTLogRelDefaultInstance();
323	if (pRelLogger)
324	{
325	pVM->vmm.s.cbRCRelLogger = RT_OFFSETOF(RTLOGGERRC, afGroups[pRelLogger->cGroups]);
326	rc = MMR3HyperAllocOnceNoRel(pVM, pVM->vmm.s.cbRCRelLogger, 0, MM_TAG_VMM, (void **)&pVM->vmm.s.pRCRelLoggerR3);
327	if (RT_FAILURE(rc))
328	return rc;
329	pVM->vmm.s.pRCRelLoggerRC = MMHyperR3ToRC(pVM, pVM->vmm.s.pRCRelLoggerR3);
330	}
331	#endif /* VBOX_WITH_RC_RELEASE_LOGGING */
332	return VINF_SUCCESS;
333	}
334
335
336	/**
337	* VMMR3Init worker that register the statistics with STAM.
338	*
339	* @param pVM The shared VM structure.
340	*/
341	static void vmmR3InitRegisterStats(PVM pVM)
342	{
343	/*
344	* Statistics.
345	*/
346	STAM_REG(pVM, &pVM->vmm.s.StatRunRC, STAMTYPE_COUNTER, "/VMM/RunRC", STAMUNIT_OCCURENCES, "Number of context switches.");
347	STAM_REG(pVM, &pVM->vmm.s.StatRZRetNormal, STAMTYPE_COUNTER, "/VMM/RZRet/Normal", STAMUNIT_OCCURENCES, "Number of VINF_SUCCESS returns.");
348	STAM_REG(pVM, &pVM->vmm.s.StatRZRetInterrupt, STAMTYPE_COUNTER, "/VMM/RZRet/Interrupt", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_INTERRUPT returns.");
349	STAM_REG(pVM, &pVM->vmm.s.StatRZRetInterruptHyper, STAMTYPE_COUNTER, "/VMM/RZRet/InterruptHyper", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_INTERRUPT_HYPER returns.");
350	STAM_REG(pVM, &pVM->vmm.s.StatRZRetGuestTrap, STAMTYPE_COUNTER, "/VMM/RZRet/GuestTrap", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_GUEST_TRAP returns.");
351	STAM_REG(pVM, &pVM->vmm.s.StatRZRetRingSwitch, STAMTYPE_COUNTER, "/VMM/RZRet/RingSwitch", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_RING_SWITCH returns.");
352	STAM_REG(pVM, &pVM->vmm.s.StatRZRetRingSwitchInt, STAMTYPE_COUNTER, "/VMM/RZRet/RingSwitchInt", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_RING_SWITCH_INT returns.");
353	STAM_REG(pVM, &pVM->vmm.s.StatRZRetExceptionPrivilege, STAMTYPE_COUNTER, "/VMM/RZRet/ExceptionPrivilege", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_EXCEPTION_PRIVILEGED returns.");
354	STAM_REG(pVM, &pVM->vmm.s.StatRZRetStaleSelector, STAMTYPE_COUNTER, "/VMM/RZRet/StaleSelector", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_STALE_SELECTOR returns.");
355	STAM_REG(pVM, &pVM->vmm.s.StatRZRetIRETTrap, STAMTYPE_COUNTER, "/VMM/RZRet/IRETTrap", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_IRET_TRAP returns.");
356	STAM_REG(pVM, &pVM->vmm.s.StatRZRetEmulate, STAMTYPE_COUNTER, "/VMM/RZRet/Emulate", STAMUNIT_OCCURENCES, "Number of VINF_EM_EXECUTE_INSTRUCTION returns.");
357	STAM_REG(pVM, &pVM->vmm.s.StatRZRetIOBlockEmulate, STAMTYPE_COUNTER, "/VMM/RZRet/EmulateIOBlock", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_EMULATE_IO_BLOCK returns.");
358	STAM_REG(pVM, &pVM->vmm.s.StatRZRetPatchEmulate, STAMTYPE_COUNTER, "/VMM/RZRet/PatchEmulate", STAMUNIT_OCCURENCES, "Number of VINF_PATCH_EMULATE_INSTR returns.");
359	STAM_REG(pVM, &pVM->vmm.s.StatRZRetIORead, STAMTYPE_COUNTER, "/VMM/RZRet/IORead", STAMUNIT_OCCURENCES, "Number of VINF_IOM_HC_IOPORT_READ returns.");
360	STAM_REG(pVM, &pVM->vmm.s.StatRZRetIOWrite, STAMTYPE_COUNTER, "/VMM/RZRet/IOWrite", STAMUNIT_OCCURENCES, "Number of VINF_IOM_HC_IOPORT_WRITE returns.");
361	STAM_REG(pVM, &pVM->vmm.s.StatRZRetMMIORead, STAMTYPE_COUNTER, "/VMM/RZRet/MMIORead", STAMUNIT_OCCURENCES, "Number of VINF_IOM_HC_MMIO_READ returns.");
362	STAM_REG(pVM, &pVM->vmm.s.StatRZRetMMIOWrite, STAMTYPE_COUNTER, "/VMM/RZRet/MMIOWrite", STAMUNIT_OCCURENCES, "Number of VINF_IOM_HC_MMIO_WRITE returns.");
363	STAM_REG(pVM, &pVM->vmm.s.StatRZRetMMIOReadWrite, STAMTYPE_COUNTER, "/VMM/RZRet/MMIOReadWrite", STAMUNIT_OCCURENCES, "Number of VINF_IOM_HC_MMIO_READ_WRITE returns.");
364	STAM_REG(pVM, &pVM->vmm.s.StatRZRetMMIOPatchRead, STAMTYPE_COUNTER, "/VMM/RZRet/MMIOPatchRead", STAMUNIT_OCCURENCES, "Number of VINF_IOM_HC_MMIO_PATCH_READ returns.");
365	STAM_REG(pVM, &pVM->vmm.s.StatRZRetMMIOPatchWrite, STAMTYPE_COUNTER, "/VMM/RZRet/MMIOPatchWrite", STAMUNIT_OCCURENCES, "Number of VINF_IOM_HC_MMIO_PATCH_WRITE returns.");
366	STAM_REG(pVM, &pVM->vmm.s.StatRZRetLDTFault, STAMTYPE_COUNTER, "/VMM/RZRet/LDTFault", STAMUNIT_OCCURENCES, "Number of VINF_EM_EXECUTE_INSTRUCTION_GDT_FAULT returns.");
367	STAM_REG(pVM, &pVM->vmm.s.StatRZRetGDTFault, STAMTYPE_COUNTER, "/VMM/RZRet/GDTFault", STAMUNIT_OCCURENCES, "Number of VINF_EM_EXECUTE_INSTRUCTION_LDT_FAULT returns.");
368	STAM_REG(pVM, &pVM->vmm.s.StatRZRetIDTFault, STAMTYPE_COUNTER, "/VMM/RZRet/IDTFault", STAMUNIT_OCCURENCES, "Number of VINF_EM_EXECUTE_INSTRUCTION_IDT_FAULT returns.");
369	STAM_REG(pVM, &pVM->vmm.s.StatRZRetTSSFault, STAMTYPE_COUNTER, "/VMM/RZRet/TSSFault", STAMUNIT_OCCURENCES, "Number of VINF_EM_EXECUTE_INSTRUCTION_TSS_FAULT returns.");
370	STAM_REG(pVM, &pVM->vmm.s.StatRZRetPDFault, STAMTYPE_COUNTER, "/VMM/RZRet/PDFault", STAMUNIT_OCCURENCES, "Number of VINF_EM_EXECUTE_INSTRUCTION_PD_FAULT returns.");
371	STAM_REG(pVM, &pVM->vmm.s.StatRZRetCSAMTask, STAMTYPE_COUNTER, "/VMM/RZRet/CSAMTask", STAMUNIT_OCCURENCES, "Number of VINF_CSAM_PENDING_ACTION returns.");
372	STAM_REG(pVM, &pVM->vmm.s.StatRZRetSyncCR3, STAMTYPE_COUNTER, "/VMM/RZRet/SyncCR", STAMUNIT_OCCURENCES, "Number of VINF_PGM_SYNC_CR3 returns.");
373	STAM_REG(pVM, &pVM->vmm.s.StatRZRetMisc, STAMTYPE_COUNTER, "/VMM/RZRet/Misc", STAMUNIT_OCCURENCES, "Number of misc returns.");
374	STAM_REG(pVM, &pVM->vmm.s.StatRZRetPatchInt3, STAMTYPE_COUNTER, "/VMM/RZRet/PatchInt3", STAMUNIT_OCCURENCES, "Number of VINF_PATM_PATCH_INT3 returns.");
375	STAM_REG(pVM, &pVM->vmm.s.StatRZRetPatchPF, STAMTYPE_COUNTER, "/VMM/RZRet/PatchPF", STAMUNIT_OCCURENCES, "Number of VINF_PATM_PATCH_TRAP_PF returns.");
376	STAM_REG(pVM, &pVM->vmm.s.StatRZRetPatchGP, STAMTYPE_COUNTER, "/VMM/RZRet/PatchGP", STAMUNIT_OCCURENCES, "Number of VINF_PATM_PATCH_TRAP_GP returns.");
377	STAM_REG(pVM, &pVM->vmm.s.StatRZRetPatchIretIRQ, STAMTYPE_COUNTER, "/VMM/RZRet/PatchIret", STAMUNIT_OCCURENCES, "Number of VINF_PATM_PENDING_IRQ_AFTER_IRET returns.");
378	STAM_REG(pVM, &pVM->vmm.s.StatRZRetRescheduleREM, STAMTYPE_COUNTER, "/VMM/RZRet/ScheduleREM", STAMUNIT_OCCURENCES, "Number of VINF_EM_RESCHEDULE_REM returns.");
379	STAM_REG(pVM, &pVM->vmm.s.StatRZRetToR3, STAMTYPE_COUNTER, "/VMM/RZRet/ToR3", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_TO_R3 returns.");
380	STAM_REG(pVM, &pVM->vmm.s.StatRZRetTimerPending, STAMTYPE_COUNTER, "/VMM/RZRet/TimerPending", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_TIMER_PENDING returns.");
381	STAM_REG(pVM, &pVM->vmm.s.StatRZRetInterruptPending, STAMTYPE_COUNTER, "/VMM/RZRet/InterruptPending", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_INTERRUPT_PENDING returns.");
382	STAM_REG(pVM, &pVM->vmm.s.StatRZRetPATMDuplicateFn, STAMTYPE_COUNTER, "/VMM/RZRet/PATMDuplicateFn", STAMUNIT_OCCURENCES, "Number of VINF_PATM_DUPLICATE_FUNCTION returns.");
383	STAM_REG(pVM, &pVM->vmm.s.StatRZRetPGMChangeMode, STAMTYPE_COUNTER, "/VMM/RZRet/PGMChangeMode", STAMUNIT_OCCURENCES, "Number of VINF_PGM_CHANGE_MODE returns.");
384	STAM_REG(pVM, &pVM->vmm.s.StatRZRetEmulHlt, STAMTYPE_COUNTER, "/VMM/RZRet/EmulHlt", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_EMULATE_INSTR_HLT returns.");
385	STAM_REG(pVM, &pVM->vmm.s.StatRZRetPendingRequest, STAMTYPE_COUNTER, "/VMM/RZRet/PendingRequest", STAMUNIT_OCCURENCES, "Number of VINF_EM_PENDING_REQUEST returns.");
386
387	STAM_REG(pVM, &pVM->vmm.s.StatRZRetCallRing3, STAMTYPE_COUNTER, "/VMM/RZCallR3/Misc", STAMUNIT_OCCURENCES, "Number of Other ring-3 calls.");
388	STAM_REG(pVM, &pVM->vmm.s.StatRZCallPDMLock, STAMTYPE_COUNTER, "/VMM/RZCallR3/PDMLock", STAMUNIT_OCCURENCES, "Number of VMMCALLRING3_PDM_LOCK calls.");
389	STAM_REG(pVM, &pVM->vmm.s.StatRZCallPDMQueueFlush, STAMTYPE_COUNTER, "/VMM/RZCallR3/PDMQueueFlush", STAMUNIT_OCCURENCES, "Number of VMMCALLRING3_PDM_QUEUE_FLUSH calls.");
390	STAM_REG(pVM, &pVM->vmm.s.StatRZCallPGMLock, STAMTYPE_COUNTER, "/VMM/RZCallR3/PGMLock", STAMUNIT_OCCURENCES, "Number of VMMCALLRING3_PGM_LOCK calls.");
391	STAM_REG(pVM, &pVM->vmm.s.StatRZCallPGMPoolGrow, STAMTYPE_COUNTER, "/VMM/RZCallR3/PGMPoolGrow", STAMUNIT_OCCURENCES, "Number of VMMCALLRING3_PGM_POOL_GROW calls.");
392	STAM_REG(pVM, &pVM->vmm.s.StatRZCallPGMMapChunk, STAMTYPE_COUNTER, "/VMM/RZCallR3/PGMMapChunk", STAMUNIT_OCCURENCES, "Number of VMMCALLRING3_PGM_MAP_CHUNK calls.");
393	STAM_REG(pVM, &pVM->vmm.s.StatRZCallPGMAllocHandy, STAMTYPE_COUNTER, "/VMM/RZCallR3/PGMAllocHandy", STAMUNIT_OCCURENCES, "Number of VMMCALLRING3_PGM_ALLOCATE_HANDY_PAGES calls.");
394	STAM_REG(pVM, &pVM->vmm.s.StatRZCallRemReplay, STAMTYPE_COUNTER, "/VMM/RZCallR3/REMReplay", STAMUNIT_OCCURENCES, "Number of VMMCALLRING3_REM_REPLAY_HANDLER_NOTIFICATIONS calls.");
395	STAM_REG(pVM, &pVM->vmm.s.StatRZCallLogFlush, STAMTYPE_COUNTER, "/VMM/RZCallR3/VMMLogFlush", STAMUNIT_OCCURENCES, "Number of VMMCALLRING3_VMM_LOGGER_FLUSH calls.");
396	STAM_REG(pVM, &pVM->vmm.s.StatRZCallVMSetError, STAMTYPE_COUNTER, "/VMM/RZCallR3/VMSetError", STAMUNIT_OCCURENCES, "Number of VMMCALLRING3_VM_SET_ERROR calls.");
397	STAM_REG(pVM, &pVM->vmm.s.StatRZCallVMSetRuntimeError, STAMTYPE_COUNTER, "/VMM/RZCallR3/VMRuntimeError", STAMUNIT_OCCURENCES, "Number of VMMCALLRING3_VM_SET_RUNTIME_ERROR calls.");
398
399	#ifdef VBOX_WITH_STATISTICS
400	for (VMCPUID i = 0; i < pVM->cCPUs; i++)
401	{
402	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);
403	STAMR3RegisterF(pVM, &pVM->aCpus[i].vmm.s.CallRing3JmpBufR0.cbUsedAvg, STAMTYPE_U32, STAMVISIBILITY_ALWAYS, STAMUNIT_BYTES, "Average stack usage.", "/VMM/Stack/CPU%u/Avg", i);
404	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);
405	}
406	#endif
407	}
408
409
410	/**
411	* Initializes the per-VCPU VMM.
412	*
413	* @returns VBox status code.
414	* @param pVM The VM to operate on.
415	*/
416	VMMR3DECL(int) VMMR3InitCPU(PVM pVM)
417	{
418	LogFlow(("VMMR3InitCPU\n"));
419	return VINF_SUCCESS;
420	}
421
422
423	/**
424	* Ring-3 init finalizing.
425	*
426	* @returns VBox status code.
427	* @param pVM The VM handle.
428	*/
429	VMMR3DECL(int) VMMR3InitFinalize(PVM pVM)
430	{
431	int rc = VINF_SUCCESS;
432
433	for (VMCPUID idCpu = 0; idCpu < pVM->cCPUs; idCpu++)
434	{
435	PVMCPU pVCpu = &pVM->aCpus[idCpu];
436
437	#ifdef VBOX_STRICT_VMM_STACK
438	/*
439	* Two inaccessible pages at each sides of the stack to catch over/under-flows.
440	*/
441	memset(pVCpu->vmm.s.pbEMTStackR3 - PAGE_SIZE, 0xcc, PAGE_SIZE);
442	MMR3HyperSetGuard(pVM, pVCpu->vmm.s.pbEMTStackR3 - PAGE_SIZE, PAGE_SIZE, true /fSet/);
443
444	memset(pVCpu->vmm.s.pbEMTStackR3 + VMM_STACK_SIZE, 0xcc, PAGE_SIZE);
445	MMR3HyperSetGuard(pVM, pVCpu->vmm.s.pbEMTStackR3 + VMM_STACK_SIZE, PAGE_SIZE, true /fSet/);
446	#endif
447
448	/*
449	* Set page attributes to r/w for stack pages.
450	*/
451	rc = PGMMapSetPage(pVM, pVCpu->vmm.s.pbEMTStackRC, VMM_STACK_SIZE, X86_PTE_P \| X86_PTE_A \| X86_PTE_D \| X86_PTE_RW);
452	AssertRC(rc);
453	if (RT_FAILURE(rc))
454	break;
455	}
456	if (RT_SUCCESS(rc))
457	{
458	/*
459	* Create the EMT yield timer.
460	*/
461	rc = TMR3TimerCreateInternal(pVM, TMCLOCK_REAL, vmmR3YieldEMT, NULL, "EMT Yielder", &pVM->vmm.s.pYieldTimer);
462	if (RT_SUCCESS(rc))
463	rc = TMTimerSetMillies(pVM->vmm.s.pYieldTimer, pVM->vmm.s.cYieldEveryMillies);
464	}
465
466	#ifdef VBOX_WITH_NMI
467	/*
468	* Map the host APIC into GC - This is AMD/Intel + Host OS specific!
469	*/
470	if (RT_SUCCESS(rc))
471	rc = PGMMap(pVM, pVM->vmm.s.GCPtrApicBase, 0xfee00000, PAGE_SIZE,
472	X86_PTE_P \| X86_PTE_RW \| X86_PTE_PWT \| X86_PTE_PCD \| X86_PTE_A \| X86_PTE_D);
473	#endif
474	return rc;
475	}
476
477
478	/**
479	* Initializes the R0 VMM.
480	*
481	* @returns VBox status code.
482	* @param pVM The VM to operate on.
483	*/
484	VMMR3DECL(int) VMMR3InitR0(PVM pVM)
485	{
486	int rc;
487	PVMCPU pVCpu = VMMGetCpu(pVM);
488	Assert(pVCpu && pVCpu->idCpu == 0);
489
490	#ifdef LOG_ENABLED
491	/*
492	* Initialize the ring-0 logger if we haven't done so yet.
493	*/
494	if ( pVCpu->vmm.s.pR0LoggerR3
495	&& !pVCpu->vmm.s.pR0LoggerR3->fCreated)
496	{
497	rc = VMMR3UpdateLoggers(pVM);
498	if (RT_FAILURE(rc))
499	return rc;
500	}
501	#endif
502
503	/*
504	* Call Ring-0 entry with init code.
505	*/
506	for (;;)
507	{
508	#ifdef NO_SUPCALLR0VMM
509	//rc = VERR_GENERAL_FAILURE;
510	rc = VINF_SUCCESS;
511	#else
512	rc = SUPR3CallVMMR0Ex(pVM->pVMR0, 0 /idCpu/, VMMR0_DO_VMMR0_INIT, VMMGetSvnRev(), NULL);
513	#endif
514	/*
515	* Flush the logs.
516	*/
517	#ifdef LOG_ENABLED
518	if ( pVCpu->vmm.s.pR0LoggerR3
519	&& pVCpu->vmm.s.pR0LoggerR3->Logger.offScratch > 0)
520	RTLogFlushToLogger(&pVCpu->vmm.s.pR0LoggerR3->Logger, NULL);
521	#endif
522	if (rc != VINF_VMM_CALL_HOST)
523	break;
524	rc = vmmR3ServiceCallRing3Request(pVM, pVCpu);
525	if (RT_FAILURE(rc) \|\| (rc >= VINF_EM_FIRST && rc <= VINF_EM_LAST))
526	break;
527	/* Resume R0 */
528	}
529
530	if (RT_FAILURE(rc) \|\| (rc >= VINF_EM_FIRST && rc <= VINF_EM_LAST))
531	{
532	LogRel(("R0 init failed, rc=%Rra\n", rc));
533	if (RT_SUCCESS(rc))
534	rc = VERR_INTERNAL_ERROR;
535	}
536	return rc;
537	}
538
539
540	/**
541	* Initializes the RC VMM.
542	*
543	* @returns VBox status code.
544	* @param pVM The VM to operate on.
545	*/
546	VMMR3DECL(int) VMMR3InitRC(PVM pVM)
547	{
548	PVMCPU pVCpu = VMMGetCpu(pVM);
549	Assert(pVCpu && pVCpu->idCpu == 0);
550
551	/* In VMX mode, there's no need to init RC. */
552	if (pVM->vmm.s.fSwitcherDisabled)
553	return VINF_SUCCESS;
554
555	AssertReturn(pVM->cCPUs == 1, VERR_RAW_MODE_INVALID_SMP);
556
557	/*
558	* Call VMMGCInit():
559	* -# resolve the address.
560	* -# setup stackframe and EIP to use the trampoline.
561	* -# do a generic hypervisor call.
562	*/
563	RTRCPTR RCPtrEP;
564	int rc = PDMR3LdrGetSymbolRC(pVM, VMMGC_MAIN_MODULE_NAME, "VMMGCEntry", &RCPtrEP);
565	if (RT_SUCCESS(rc))
566	{
567	CPUMHyperSetCtxCore(pVCpu, NULL);
568	CPUMSetHyperESP(pVCpu, pVCpu->vmm.s.pbEMTStackBottomRC); /* Clear the stack. */
569	uint64_t u64TS = RTTimeProgramStartNanoTS();
570	CPUMPushHyper(pVCpu, (uint32_t)(u64TS >> 32)); /* Param 3: The program startup TS - Hi. */
571	CPUMPushHyper(pVCpu, (uint32_t)u64TS); /* Param 3: The program startup TS - Lo. */
572	CPUMPushHyper(pVCpu, VMMGetSvnRev()); /* Param 2: Version argument. */
573	CPUMPushHyper(pVCpu, VMMGC_DO_VMMGC_INIT); /* Param 1: Operation. */
574	CPUMPushHyper(pVCpu, pVM->pVMRC); /* Param 0: pVM */
575	CPUMPushHyper(pVCpu, 5 * sizeof(RTRCPTR)); /* trampoline param: stacksize. */
576	CPUMPushHyper(pVCpu, RCPtrEP); /* Call EIP. */
577	CPUMSetHyperEIP(pVCpu, pVM->vmm.s.pfnCallTrampolineRC);
578	Assert(CPUMGetHyperCR3(pVCpu) && CPUMGetHyperCR3(pVCpu) == PGMGetHyperCR3(pVCpu));
579
580	for (;;)
581	{
582	#ifdef NO_SUPCALLR0VMM
583	//rc = VERR_GENERAL_FAILURE;
584	rc = VINF_SUCCESS;
585	#else
586	rc = SUPR3CallVMMR0(pVM->pVMR0, 0 /* VCPU 0 */, VMMR0_DO_CALL_HYPERVISOR, NULL);
587	#endif
588	#ifdef LOG_ENABLED
589	PRTLOGGERRC pLogger = pVM->vmm.s.pRCLoggerR3;
590	if ( pLogger
591	&& pLogger->offScratch > 0)
592	RTLogFlushRC(NULL, pLogger);
593	#endif
594	#ifdef VBOX_WITH_RC_RELEASE_LOGGING
595	PRTLOGGERRC pRelLogger = pVM->vmm.s.pRCRelLoggerR3;
596	if (RT_UNLIKELY(pRelLogger && pRelLogger->offScratch > 0))
597	RTLogFlushRC(RTLogRelDefaultInstance(), pRelLogger);
598	#endif
599	if (rc != VINF_VMM_CALL_HOST)
600	break;
601	rc = vmmR3ServiceCallRing3Request(pVM, pVCpu);
602	if (RT_FAILURE(rc) \|\| (rc >= VINF_EM_FIRST && rc <= VINF_EM_LAST))
603	break;
604	}
605
606	if (RT_FAILURE(rc) \|\| (rc >= VINF_EM_FIRST && rc <= VINF_EM_LAST))
607	{
608	VMMR3FatalDump(pVM, pVCpu, rc);
609	if (rc >= VINF_EM_FIRST && rc <= VINF_EM_LAST)
610	rc = VERR_INTERNAL_ERROR;
611	}
612	AssertRC(rc);
613	}
614	return rc;
615	}
616
617
618	/**
619	* Terminate the VMM bits.
620	*
621	* @returns VINF_SUCCESS.
622	* @param pVM The VM handle.
623	*/
624	VMMR3DECL(int) VMMR3Term(PVM pVM)
625	{
626	PVMCPU pVCpu = VMMGetCpu(pVM);
627	Assert(pVCpu && pVCpu->idCpu == 0);
628
629	/*
630	* Call Ring-0 entry with termination code.
631	*/
632	int rc;
633	for (;;)
634	{
635	#ifdef NO_SUPCALLR0VMM
636	//rc = VERR_GENERAL_FAILURE;
637	rc = VINF_SUCCESS;
638	#else
639	rc = SUPR3CallVMMR0Ex(pVM->pVMR0, 0 /idCpu/, VMMR0_DO_VMMR0_TERM, 0, NULL);
640	#endif
641	/*
642	* Flush the logs.
643	*/
644	#ifdef LOG_ENABLED
645	if ( pVCpu->vmm.s.pR0LoggerR3
646	&& pVCpu->vmm.s.pR0LoggerR3->Logger.offScratch > 0)
647	RTLogFlushToLogger(&pVCpu->vmm.s.pR0LoggerR3->Logger, NULL);
648	#endif
649	if (rc != VINF_VMM_CALL_HOST)
650	break;
651	rc = vmmR3ServiceCallRing3Request(pVM, pVCpu);
652	if (RT_FAILURE(rc) \|\| (rc >= VINF_EM_FIRST && rc <= VINF_EM_LAST))
653	break;
654	/* Resume R0 */
655	}
656	if (RT_FAILURE(rc) \|\| (rc >= VINF_EM_FIRST && rc <= VINF_EM_LAST))
657	{
658	LogRel(("VMMR3Term: R0 term failed, rc=%Rra. (warning)\n", rc));
659	if (RT_SUCCESS(rc))
660	rc = VERR_INTERNAL_ERROR;
661	}
662
663	RTCritSectDelete(&pVM->vmm.s.CritSectSync);
664	RTSemEventDestroy(pVM->vmm.s.hEvtRendezvousEnterOneByOne);
665	pVM->vmm.s.hEvtRendezvousEnterOneByOne = NIL_RTSEMEVENT;
666	RTSemEventMultiDestroy(pVM->vmm.s.hEvtMulRendezvousEnterAllAtOnce);
667	pVM->vmm.s.hEvtMulRendezvousEnterAllAtOnce = NIL_RTSEMEVENTMULTI;
668	RTSemEventMultiDestroy(pVM->vmm.s.hEvtMulRendezvousDone);
669	pVM->vmm.s.hEvtMulRendezvousDone = NIL_RTSEMEVENTMULTI;
670	RTSemEventDestroy(pVM->vmm.s.hEvtRendezvousDoneCaller);
671	pVM->vmm.s.hEvtRendezvousDoneCaller = NIL_RTSEMEVENT;
672
673	#ifdef VBOX_STRICT_VMM_STACK
674	/*
675	* Make the two stack guard pages present again.
676	*/
677	for (VMCPUID i = 0; i < pVM->cCPUs; i++)
678	{
679	MMR3HyperSetGuard(pVM, pVM->aCpus[i].vmm.s.pbEMTStackR3 - PAGE_SIZE, PAGE_SIZE, false /fSet/);
680	MMR3HyperSetGuard(pVM, pVM->aCpus[i].vmm.s.pbEMTStackR3 + VMM_STACK_SIZE, PAGE_SIZE, false /fSet/);
681	}
682	#endif
683	return rc;
684	}
685
686
687	/**
688	* Terminates the per-VCPU VMM.
689	*
690	* Termination means cleaning up and freeing all resources,
691	* the VM it self is at this point powered off or suspended.
692	*
693	* @returns VBox status code.
694	* @param pVM The VM to operate on.
695	*/
696	VMMR3DECL(int) VMMR3TermCPU(PVM pVM)
697	{
698	return VINF_SUCCESS;
699	}
700
701
702	/**
703	* Applies relocations to data and code managed by this
704	* component. This function will be called at init and
705	* whenever the VMM need to relocate it self inside the GC.
706	*
707	* The VMM will need to apply relocations to the core code.
708	*
709	* @param pVM The VM handle.
710	* @param offDelta The relocation delta.
711	*/
712	VMMR3DECL(void) VMMR3Relocate(PVM pVM, RTGCINTPTR offDelta)
713	{
714	LogFlow(("VMMR3Relocate: offDelta=%RGv\n", offDelta));
715
716	/*
717	* Recalc the RC address.
718	*/
719	pVM->vmm.s.pvCoreCodeRC = MMHyperR3ToRC(pVM, pVM->vmm.s.pvCoreCodeR3);
720
721	/*
722	* The stack.
723	*/
724	for (VMCPUID i = 0; i < pVM->cCPUs; i++)
725	{
726	PVMCPU pVCpu = &pVM->aCpus[i];
727
728	CPUMSetHyperESP(pVCpu, CPUMGetHyperESP(pVCpu) + offDelta);
729
730	pVCpu->vmm.s.pbEMTStackRC = MMHyperR3ToRC(pVM, pVCpu->vmm.s.pbEMTStackR3);
731	pVCpu->vmm.s.pbEMTStackBottomRC = pVCpu->vmm.s.pbEMTStackRC + VMM_STACK_SIZE;
732	}
733
734	/*
735	* All the switchers.
736	*/
737	vmmR3SwitcherRelocate(pVM, offDelta);
738
739	/*
740	* Get other RC entry points.
741	*/
742	int rc = PDMR3LdrGetSymbolRC(pVM, VMMGC_MAIN_MODULE_NAME, "CPUMGCResumeGuest", &pVM->vmm.s.pfnCPUMRCResumeGuest);
743	AssertReleaseMsgRC(rc, ("CPUMGCResumeGuest not found! rc=%Rra\n", rc));
744
745	rc = PDMR3LdrGetSymbolRC(pVM, VMMGC_MAIN_MODULE_NAME, "CPUMGCResumeGuestV86", &pVM->vmm.s.pfnCPUMRCResumeGuestV86);
746	AssertReleaseMsgRC(rc, ("CPUMGCResumeGuestV86 not found! rc=%Rra\n", rc));
747
748	/*
749	* Update the logger.
750	*/
751	VMMR3UpdateLoggers(pVM);
752	}
753
754
755	/**
756	* Updates the settings for the RC and R0 loggers.
757	*
758	* @returns VBox status code.
759	* @param pVM The VM handle.
760	*/
761	VMMR3DECL(int) VMMR3UpdateLoggers(PVM pVM)
762	{
763	/*
764	* Simply clone the logger instance (for RC).
765	*/
766	int rc = VINF_SUCCESS;
767	RTRCPTR RCPtrLoggerFlush = 0;
768
769	if (pVM->vmm.s.pRCLoggerR3
770	#ifdef VBOX_WITH_RC_RELEASE_LOGGING
771	\|\| pVM->vmm.s.pRCRelLoggerR3
772	#endif
773	)
774	{
775	rc = PDMR3LdrGetSymbolRC(pVM, VMMGC_MAIN_MODULE_NAME, "vmmGCLoggerFlush", &RCPtrLoggerFlush);
776	AssertReleaseMsgRC(rc, ("vmmGCLoggerFlush not found! rc=%Rra\n", rc));
777	}
778
779	if (pVM->vmm.s.pRCLoggerR3)
780	{
781	RTRCPTR RCPtrLoggerWrapper = 0;
782	rc = PDMR3LdrGetSymbolRC(pVM, VMMGC_MAIN_MODULE_NAME, "vmmGCLoggerWrapper", &RCPtrLoggerWrapper);
783	AssertReleaseMsgRC(rc, ("vmmGCLoggerWrapper not found! rc=%Rra\n", rc));
784
785	pVM->vmm.s.pRCLoggerRC = MMHyperR3ToRC(pVM, pVM->vmm.s.pRCLoggerR3);
786	rc = RTLogCloneRC(NULL /* default */, pVM->vmm.s.pRCLoggerR3, pVM->vmm.s.cbRCLogger,
787	RCPtrLoggerWrapper, RCPtrLoggerFlush, RTLOGFLAGS_BUFFERED);
788	AssertReleaseMsgRC(rc, ("RTLogCloneRC failed! rc=%Rra\n", rc));
789	}
790
791	#ifdef VBOX_WITH_RC_RELEASE_LOGGING
792	if (pVM->vmm.s.pRCRelLoggerR3)
793	{
794	RTRCPTR RCPtrLoggerWrapper = 0;
795	rc = PDMR3LdrGetSymbolRC(pVM, VMMGC_MAIN_MODULE_NAME, "vmmGCRelLoggerWrapper", &RCPtrLoggerWrapper);
796	AssertReleaseMsgRC(rc, ("vmmGCRelLoggerWrapper not found! rc=%Rra\n", rc));
797
798	pVM->vmm.s.pRCRelLoggerRC = MMHyperR3ToRC(pVM, pVM->vmm.s.pRCRelLoggerR3);
799	rc = RTLogCloneRC(RTLogRelDefaultInstance(), pVM->vmm.s.pRCRelLoggerR3, pVM->vmm.s.cbRCRelLogger,
800	RCPtrLoggerWrapper, RCPtrLoggerFlush, RTLOGFLAGS_BUFFERED);
801	AssertReleaseMsgRC(rc, ("RTLogCloneRC failed! rc=%Rra\n", rc));
802	}
803	#endif /* VBOX_WITH_RC_RELEASE_LOGGING */
804
805	#ifdef LOG_ENABLED
806	/*
807	* For the ring-0 EMT logger, we use a per-thread logger instance
808	* in ring-0. Only initialize it once.
809	*/
810	for (VMCPUID i = 0; i < pVM->cCPUs; i++)
811	{
812	PVMCPU pVCpu = &pVM->aCpus[i];
813	PVMMR0LOGGER pR0LoggerR3 = pVCpu->vmm.s.pR0LoggerR3;
814	if (pR0LoggerR3)
815	{
816	if (!pR0LoggerR3->fCreated)
817	{
818	RTR0PTR pfnLoggerWrapper = NIL_RTR0PTR;
819	rc = PDMR3LdrGetSymbolR0(pVM, VMMR0_MAIN_MODULE_NAME, "vmmR0LoggerWrapper", &pfnLoggerWrapper);
820	AssertReleaseMsgRCReturn(rc, ("vmmR0LoggerWrapper not found! rc=%Rra\n", rc), rc);
821
822	RTR0PTR pfnLoggerFlush = NIL_RTR0PTR;
823	rc = PDMR3LdrGetSymbolR0(pVM, VMMR0_MAIN_MODULE_NAME, "vmmR0LoggerFlush", &pfnLoggerFlush);
824	AssertReleaseMsgRCReturn(rc, ("vmmR0LoggerFlush not found! rc=%Rra\n", rc), rc);
825
826	rc = RTLogCreateForR0(&pR0LoggerR3->Logger, pR0LoggerR3->cbLogger,
827	(PFNRTLOGGER )&pfnLoggerWrapper, (PFNRTLOGFLUSH )&pfnLoggerFlush,
828	RTLOGFLAGS_BUFFERED, RTLOGDEST_DUMMY);
829	AssertReleaseMsgRCReturn(rc, ("RTLogCreateForR0 failed! rc=%Rra\n", rc), rc);
830
831	RTR0PTR pfnLoggerPrefix = NIL_RTR0PTR;
832	rc = PDMR3LdrGetSymbolR0(pVM, VMMR0_MAIN_MODULE_NAME, "vmmR0LoggerPrefix", &pfnLoggerPrefix);
833	AssertReleaseMsgRCReturn(rc, ("vmmR0LoggerPrefix not found! rc=%Rra\n", rc), rc);
834	rc = RTLogSetCustomPrefixCallback(&pR0LoggerR3->Logger, (PFNRTLOGPREFIX )&pfnLoggerPrefix, NULL);
835	AssertReleaseMsgRCReturn(rc, ("RTLogSetCustomPrefixCallback failed! rc=%Rra\n", rc), rc);
836
837	pR0LoggerR3->idCpu = i;
838	pR0LoggerR3->fCreated = true;
839	pR0LoggerR3->fFlushingDisabled = false;
840
841	}
842
843	rc = RTLogCopyGroupsAndFlags(&pR0LoggerR3->Logger, NULL /* default */, pVM->vmm.s.pRCLoggerR3->fFlags, RTLOGFLAGS_BUFFERED);
844	AssertRC(rc);
845	}
846	}
847	#endif
848	return rc;
849	}
850
851
852	/**
853	* Gets the pointer to a buffer containing the R0/RC AssertMsg1 output.
854	*
855	* @returns Pointer to the buffer.
856	* @param pVM The VM handle.
857	*/
858	VMMR3DECL(const char *) VMMR3GetRZAssertMsg1(PVM pVM)
859	{
860	if (HWACCMIsEnabled(pVM))
861	return pVM->vmm.s.szRing0AssertMsg1;
862
863	RTRCPTR RCPtr;
864	int rc = PDMR3LdrGetSymbolRC(pVM, NULL, "g_szRTAssertMsg1", &RCPtr);
865	if (RT_SUCCESS(rc))
866	return (const char *)MMHyperRCToR3(pVM, RCPtr);
867
868	return NULL;
869	}
870
871
872	/**
873	* Gets the pointer to a buffer containing the R0/RC AssertMsg2 output.
874	*
875	* @returns Pointer to the buffer.
876	* @param pVM The VM handle.
877	*/
878	VMMR3DECL(const char *) VMMR3GetRZAssertMsg2(PVM pVM)
879	{
880	if (HWACCMIsEnabled(pVM))
881	return pVM->vmm.s.szRing0AssertMsg2;
882
883	RTRCPTR RCPtr;
884	int rc = PDMR3LdrGetSymbolRC(pVM, NULL, "g_szRTAssertMsg2", &RCPtr);
885	if (RT_SUCCESS(rc))
886	return (const char *)MMHyperRCToR3(pVM, RCPtr);
887
888	return NULL;
889	}
890
891
892	/**
893	* Execute state save operation.
894	*
895	* @returns VBox status code.
896	* @param pVM VM Handle.
897	* @param pSSM SSM operation handle.
898	*/
899	static DECLCALLBACK(int) vmmR3Save(PVM pVM, PSSMHANDLE pSSM)
900	{
901	LogFlow(("vmmR3Save:\n"));
902
903	/*
904	* The hypervisor stack.
905	* Note! See note in vmmR3Load (remove this on version change).
906	*/
907	PVMCPU pVCpu0 = &pVM->aCpus[0];
908	SSMR3PutRCPtr(pSSM, pVCpu0->vmm.s.pbEMTStackBottomRC);
909	RTRCPTR RCPtrESP = CPUMGetHyperESP(pVCpu0);
910	AssertMsg(pVCpu0->vmm.s.pbEMTStackBottomRC - RCPtrESP <= VMM_STACK_SIZE, ("Bottom %RRv ESP=%RRv\n", pVCpu0->vmm.s.pbEMTStackBottomRC, RCPtrESP));
911	SSMR3PutRCPtr(pSSM, RCPtrESP);
912	SSMR3PutMem(pSSM, pVCpu0->vmm.s.pbEMTStackR3, VMM_STACK_SIZE);
913
914	/*
915	* Save the started/stopped state of all CPUs except 0 as it will always
916	* be running. This avoids breaking the saved state version. :-)
917	*/
918	for (VMCPUID i = 1; i < pVM->cCPUs; i++)
919	SSMR3PutBool(pSSM, VMCPUSTATE_IS_STARTED(VMCPU_GET_STATE(&pVM->aCpus[i])));
920
921	return SSMR3PutU32(pSSM, ~0); /* terminator */
922	}
923
924
925	/**
926	* Execute state load operation.
927	*
928	* @returns VBox status code.
929	* @param pVM VM Handle.
930	* @param pSSM SSM operation handle.
931	* @param u32Version Data layout version.
932	*/
933	static DECLCALLBACK(int) vmmR3Load(PVM pVM, PSSMHANDLE pSSM, uint32_t u32Version)
934	{
935	LogFlow(("vmmR3Load:\n"));
936
937	/*
938	* Validate version.
939	*/
940	if (u32Version != VMM_SAVED_STATE_VERSION)
941	{
942	AssertMsgFailed(("vmmR3Load: Invalid version u32Version=%d!\n", u32Version));
943	return VERR_SSM_UNSUPPORTED_DATA_UNIT_VERSION;
944	}
945
946	/*
947	* Check that the stack is in the same place, or that it's fearly empty.
948	*
949	* Note! This can be skipped next time we update saved state as we will
950	* never be in a R0/RC -> ring-3 call when saving the state. The
951	* stack and the two associated pointers are not required.
952	*/
953	RTRCPTR RCPtrStackBottom;
954	SSMR3GetRCPtr(pSSM, &RCPtrStackBottom);
955	RTRCPTR RCPtrESP;
956	int rc = SSMR3GetRCPtr(pSSM, &RCPtrESP);
957	if (RT_FAILURE(rc))
958	return rc;
959	SSMR3GetMem(pSSM, pVM->aCpus[0].vmm.s.pbEMTStackR3, VMM_STACK_SIZE);
960
961	/* Restore the VMCPU states. VCPU 0 is always started. */
962	VMCPU_SET_STATE(&pVM->aCpus[0], VMCPUSTATE_STARTED);
963	for (VMCPUID i = 1; i < pVM->cCPUs; i++)
964	{
965	bool fStarted;
966	rc = SSMR3GetBool(pSSM, &fStarted);
967	if (RT_FAILURE(rc))
968	return rc;
969	VMCPU_SET_STATE(&pVM->aCpus[i], fStarted ? VMCPUSTATE_STARTED : VMCPUSTATE_STOPPED);
970	}
971
972	/* terminator */
973	uint32_t u32;
974	rc = SSMR3GetU32(pSSM, &u32);
975	if (RT_FAILURE(rc))
976	return rc;
977	if (u32 != ~0U)
978	{
979	AssertMsgFailed(("u32=%#x\n", u32));
980	return VERR_SSM_DATA_UNIT_FORMAT_CHANGED;
981	}
982	return VINF_SUCCESS;
983	}
984
985
986	/**
987	* Resolve a builtin RC symbol.
988	*
989	* Called by PDM when loading or relocating RC modules.
990	*
991	* @returns VBox status
992	* @param pVM VM Handle.
993	* @param pszSymbol Symbol to resolv
994	* @param pRCPtrValue Where to store the symbol value.
995	*
996	* @remark This has to work before VMMR3Relocate() is called.
997	*/
998	VMMR3DECL(int) VMMR3GetImportRC(PVM pVM, const char *pszSymbol, PRTRCPTR pRCPtrValue)
999	{
1000	if (!strcmp(pszSymbol, "g_Logger"))
1001	{
1002	if (pVM->vmm.s.pRCLoggerR3)
1003	pVM->vmm.s.pRCLoggerRC = MMHyperR3ToRC(pVM, pVM->vmm.s.pRCLoggerR3);
1004	*pRCPtrValue = pVM->vmm.s.pRCLoggerRC;
1005	}
1006	else if (!strcmp(pszSymbol, "g_RelLogger"))
1007	{
1008	#ifdef VBOX_WITH_RC_RELEASE_LOGGING
1009	if (pVM->vmm.s.pRCRelLoggerR3)
1010	pVM->vmm.s.pRCRelLoggerRC = MMHyperR3ToRC(pVM, pVM->vmm.s.pRCRelLoggerR3);
1011	*pRCPtrValue = pVM->vmm.s.pRCRelLoggerRC;
1012	#else
1013	*pRCPtrValue = NIL_RTRCPTR;
1014	#endif
1015	}
1016	else
1017	return VERR_SYMBOL_NOT_FOUND;
1018	return VINF_SUCCESS;
1019	}
1020
1021
1022	/**
1023	* Suspends the CPU yielder.
1024	*
1025	* @param pVM The VM handle.
1026	*/
1027	VMMR3DECL(void) VMMR3YieldSuspend(PVM pVM)
1028	{
1029	VMCPU_ASSERT_EMT(&pVM->aCpus[0]);
1030	if (!pVM->vmm.s.cYieldResumeMillies)
1031	{
1032	uint64_t u64Now = TMTimerGet(pVM->vmm.s.pYieldTimer);
1033	uint64_t u64Expire = TMTimerGetExpire(pVM->vmm.s.pYieldTimer);
1034	if (u64Now >= u64Expire \|\| u64Expire == ~(uint64_t)0)
1035	pVM->vmm.s.cYieldResumeMillies = pVM->vmm.s.cYieldEveryMillies;
1036	else
1037	pVM->vmm.s.cYieldResumeMillies = TMTimerToMilli(pVM->vmm.s.pYieldTimer, u64Expire - u64Now);
1038	TMTimerStop(pVM->vmm.s.pYieldTimer);
1039	}
1040	pVM->vmm.s.u64LastYield = RTTimeNanoTS();
1041	}
1042
1043
1044	/**
1045	* Stops the CPU yielder.
1046	*
1047	* @param pVM The VM handle.
1048	*/
1049	VMMR3DECL(void) VMMR3YieldStop(PVM pVM)
1050	{
1051	if (!pVM->vmm.s.cYieldResumeMillies)
1052	TMTimerStop(pVM->vmm.s.pYieldTimer);
1053	pVM->vmm.s.cYieldResumeMillies = pVM->vmm.s.cYieldEveryMillies;
1054	pVM->vmm.s.u64LastYield = RTTimeNanoTS();
1055	}
1056
1057
1058	/**
1059	* Resumes the CPU yielder when it has been a suspended or stopped.
1060	*
1061	* @param pVM The VM handle.
1062	*/
1063	VMMR3DECL(void) VMMR3YieldResume(PVM pVM)
1064	{
1065	if (pVM->vmm.s.cYieldResumeMillies)
1066	{
1067	TMTimerSetMillies(pVM->vmm.s.pYieldTimer, pVM->vmm.s.cYieldResumeMillies);
1068	pVM->vmm.s.cYieldResumeMillies = 0;
1069	}
1070	}
1071
1072
1073	/**
1074	* Internal timer callback function.
1075	*
1076	* @param pVM The VM.
1077	* @param pTimer The timer handle.
1078	* @param pvUser User argument specified upon timer creation.
1079	*/
1080	static DECLCALLBACK(void) vmmR3YieldEMT(PVM pVM, PTMTIMER pTimer, void *pvUser)
1081	{
1082	/*
1083	* This really needs some careful tuning. While we shouldn't be too greedy since
1084	* that'll cause the rest of the system to stop up, we shouldn't be too nice either
1085	* because that'll cause us to stop up.
1086	*
1087	* The current logic is to use the default interval when there is no lag worth
1088	* mentioning, but when we start accumulating lag we don't bother yielding at all.
1089	*
1090	* (This depends on the TMCLOCK_VIRTUAL_SYNC to be scheduled before TMCLOCK_REAL
1091	* so the lag is up to date.)
1092	*/
1093	const uint64_t u64Lag = TMVirtualSyncGetLag(pVM);
1094	if ( u64Lag < 50000000 /* 50ms */
1095	\|\| ( u64Lag < 1000000000 /* 1s */
1096	&& RTTimeNanoTS() - pVM->vmm.s.u64LastYield < 500000000 /* 500 ms */)
1097	)
1098	{
1099	uint64_t u64Elapsed = RTTimeNanoTS();
1100	pVM->vmm.s.u64LastYield = u64Elapsed;
1101
1102	RTThreadYield();
1103
1104	#ifdef LOG_ENABLED
1105	u64Elapsed = RTTimeNanoTS() - u64Elapsed;
1106	Log(("vmmR3YieldEMT: %RI64 ns\n", u64Elapsed));
1107	#endif
1108	}
1109	TMTimerSetMillies(pTimer, pVM->vmm.s.cYieldEveryMillies);
1110	}
1111
1112
1113	/**
1114	* Executes guest code in the raw-mode context.
1115	*
1116	* @param pVM VM handle.
1117	* @param pVCpu The VMCPU to operate on.
1118	*/
1119	VMMR3DECL(int) VMMR3RawRunGC(PVM pVM, PVMCPU pVCpu)
1120	{
1121	Log2(("VMMR3RawRunGC: (cs:eip=%04x:%08x)\n", CPUMGetGuestCS(pVCpu), CPUMGetGuestEIP(pVCpu)));
1122
1123	AssertReturn(pVM->cCPUs == 1, VERR_RAW_MODE_INVALID_SMP);
1124
1125	/*
1126	* Set the EIP and ESP.
1127	*/
1128	CPUMSetHyperEIP(pVCpu, CPUMGetGuestEFlags(pVCpu) & X86_EFL_VM
1129	? pVM->vmm.s.pfnCPUMRCResumeGuestV86
1130	: pVM->vmm.s.pfnCPUMRCResumeGuest);
1131	CPUMSetHyperESP(pVCpu, pVCpu->vmm.s.pbEMTStackBottomRC);
1132
1133	/*
1134	* We hide log flushes (outer) and hypervisor interrupts (inner).
1135	*/
1136	for (;;)
1137	{
1138	#ifdef VBOX_STRICT
1139	if (RT_UNLIKELY(!CPUMGetHyperCR3(pVCpu) \|\| CPUMGetHyperCR3(pVCpu) != PGMGetHyperCR3(pVCpu)))
1140	EMR3FatalError(pVCpu, VERR_VMM_HYPER_CR3_MISMATCH);
1141	PGMMapCheck(pVM);
1142	#endif
1143	int rc;
1144	do
1145	{
1146	#ifdef NO_SUPCALLR0VMM
1147	rc = VERR_GENERAL_FAILURE;
1148	#else
1149	rc = SUPR3CallVMMR0Fast(pVM->pVMR0, VMMR0_DO_RAW_RUN, 0);
1150	if (RT_LIKELY(rc == VINF_SUCCESS))
1151	rc = pVCpu->vmm.s.iLastGZRc;
1152	#endif
1153	} while (rc == VINF_EM_RAW_INTERRUPT_HYPER);
1154
1155	/*
1156	* Flush the logs.
1157	*/
1158	#ifdef LOG_ENABLED
1159	PRTLOGGERRC pLogger = pVM->vmm.s.pRCLoggerR3;
1160	if ( pLogger
1161	&& pLogger->offScratch > 0)
1162	RTLogFlushRC(NULL, pLogger);
1163	#endif
1164	#ifdef VBOX_WITH_RC_RELEASE_LOGGING
1165	PRTLOGGERRC pRelLogger = pVM->vmm.s.pRCRelLoggerR3;
1166	if (RT_UNLIKELY(pRelLogger && pRelLogger->offScratch > 0))
1167	RTLogFlushRC(RTLogRelDefaultInstance(), pRelLogger);
1168	#endif
1169	if (rc != VINF_VMM_CALL_HOST)
1170	{
1171	Log2(("VMMR3RawRunGC: returns %Rrc (cs:eip=%04x:%08x)\n", rc, CPUMGetGuestCS(pVCpu), CPUMGetGuestEIP(pVCpu)));
1172	return rc;
1173	}
1174	rc = vmmR3ServiceCallRing3Request(pVM, pVCpu);
1175	if (RT_FAILURE(rc))
1176	return rc;
1177	/* Resume GC */
1178	}
1179	}
1180
1181
1182	/**
1183	* Executes guest code (Intel VT-x and AMD-V).
1184	*
1185	* @param pVM VM handle.
1186	* @param pVCpu The VMCPU to operate on.
1187	*/
1188	VMMR3DECL(int) VMMR3HwAccRunGC(PVM pVM, PVMCPU pVCpu)
1189	{
1190	Log2(("VMMR3HwAccRunGC: (cs:eip=%04x:%08x)\n", CPUMGetGuestCS(pVCpu), CPUMGetGuestEIP(pVCpu)));
1191
1192	for (;;)
1193	{
1194	int rc;
1195	do
1196	{
1197	#ifdef NO_SUPCALLR0VMM
1198	rc = VERR_GENERAL_FAILURE;
1199	#else
1200	rc = SUPR3CallVMMR0Fast(pVM->pVMR0, VMMR0_DO_HWACC_RUN, pVCpu->idCpu);
1201	if (RT_LIKELY(rc == VINF_SUCCESS))
1202	rc = pVCpu->vmm.s.iLastGZRc;
1203	#endif
1204	} while (rc == VINF_EM_RAW_INTERRUPT_HYPER);
1205
1206	#ifdef LOG_ENABLED
1207	/*
1208	* Flush the log
1209	*/
1210	PVMMR0LOGGER pR0LoggerR3 = pVCpu->vmm.s.pR0LoggerR3;
1211	if ( pR0LoggerR3
1212	&& pR0LoggerR3->Logger.offScratch > 0)
1213	RTLogFlushToLogger(&pR0LoggerR3->Logger, NULL);
1214	#endif /* !LOG_ENABLED */
1215	if (rc != VINF_VMM_CALL_HOST)
1216	{
1217	Log2(("VMMR3HwAccRunGC: returns %Rrc (cs:eip=%04x:%08x)\n", rc, CPUMGetGuestCS(pVCpu), CPUMGetGuestEIP(pVCpu)));
1218	return rc;
1219	}
1220	rc = vmmR3ServiceCallRing3Request(pVM, pVCpu);
1221	if (RT_FAILURE(rc))
1222	return rc;
1223	/* Resume R0 */
1224	}
1225	}
1226
1227	/**
1228	* VCPU worker for VMMSendSipi.
1229	*
1230	* @param pVM The VM to operate on.
1231	* @param idCpu Virtual CPU to perform SIPI on
1232	* @param uVector SIPI vector
1233	*/
1234	DECLCALLBACK(int) vmmR3SendSipi(PVM pVM, VMCPUID idCpu, uint32_t uVector)
1235	{
1236	PVMCPU pVCpu = VMMGetCpuById(pVM, idCpu);
1237	VMCPU_ASSERT_EMT(pVCpu);
1238
1239	/** @todo what are we supposed to do if the processor is already running? */
1240	if (EMGetState(pVCpu) != EMSTATE_WAIT_SIPI)
1241	return VERR_ACCESS_DENIED;
1242
1243
1244	PCPUMCTX pCtx = CPUMQueryGuestCtxPtr(pVCpu);
1245
1246	pCtx->cs = uVector << 8;
1247	pCtx->csHid.u64Base = uVector << 12;
1248	pCtx->csHid.u32Limit = 0x0000ffff;
1249	pCtx->rip = 0;
1250
1251	Log(("vmmR3SendSipi for VCPU %d with vector %x\n", uVector));
1252
1253	# if 1 /* If we keep the EMSTATE_WAIT_SIPI method, then move this to EM.cpp. */
1254	EMSetState(pVCpu, EMSTATE_HALTED);
1255	return VINF_EM_RESCHEDULE;
1256	# else /* And if we go the VMCPU::enmState way it can stay here. */
1257	VMCPU_ASSERT_STATE(pVCpu, VMCPUSTATE_STOPPED);
1258	VMCPU_SET_STATE(pVCpu, VMCPUSTATE_STARTED);
1259	return VINF_SUCCESS;
1260	# endif
1261	}
1262
1263	DECLCALLBACK(int) vmmR3SendInitIpi(PVM pVM, VMCPUID idCpu)
1264	{
1265	PVMCPU pVCpu = VMMGetCpuById(pVM, idCpu);
1266	VMCPU_ASSERT_EMT(pVCpu);
1267
1268	Log(("vmmR3SendInitIpi for VCPU %d\n", idCpu));
1269	CPUMR3ResetCpu(pVCpu);
1270	return VINF_EM_WAIT_SIPI;
1271	}
1272
1273	/**
1274	* Sends SIPI to the virtual CPU by setting CS:EIP into vector-dependent state
1275	* and unhalting processor
1276	*
1277	* @param pVM The VM to operate on.
1278	* @param idCpu Virtual CPU to perform SIPI on
1279	* @param uVector SIPI vector
1280	*/
1281	VMMR3DECL(void) VMMR3SendSipi(PVM pVM, VMCPUID idCpu, uint32_t uVector)
1282	{
1283	AssertReturnVoid(idCpu < pVM->cCPUs);
1284
1285	PVMREQ pReq;
1286	int rc = VMR3ReqCallU(pVM->pUVM, idCpu, &pReq, 0, VMREQFLAGS_NO_WAIT,
1287	(PFNRT)vmmR3SendSipi, 3, pVM, idCpu, uVector);
1288	AssertRC(rc);
1289	}
1290
1291	/**
1292	* Sends init IPI to the virtual CPU.
1293	*
1294	* @param pVM The VM to operate on.
1295	* @param idCpu Virtual CPU to perform int IPI on
1296	*/
1297	VMMR3DECL(void) VMMR3SendInitIpi(PVM pVM, VMCPUID idCpu)
1298	{
1299	AssertReturnVoid(idCpu < pVM->cCPUs);
1300
1301	PVMREQ pReq;
1302	int rc = VMR3ReqCallU(pVM->pUVM, idCpu, &pReq, 0, VMREQFLAGS_NO_WAIT,
1303	(PFNRT)vmmR3SendInitIpi, 2, pVM, idCpu);
1304	AssertRC(rc);
1305	}
1306
1307
1308	/**
1309	* VCPU worker for VMMR3SynchronizeAllVCpus.
1310	*
1311	* @param pVM The VM to operate on.
1312	* @param idCpu Virtual CPU to perform SIPI on
1313	* @param uVector SIPI vector
1314	*/
1315	DECLCALLBACK(int) vmmR3SyncVCpu(PVM pVM)
1316	{
1317	/* Block until the job in the caller has finished. */
1318	RTCritSectEnter(&pVM->vmm.s.CritSectSync);
1319	RTCritSectLeave(&pVM->vmm.s.CritSectSync);
1320	return VINF_SUCCESS;
1321	}
1322
1323
1324	/**
1325	* Atomically execute a callback handler
1326	* Note: This is very expensive; avoid using it frequently!
1327	*
1328	* @param pVM The VM to operate on.
1329	* @param pfnHandler Callback handler
1330	* @param pvUser User specified parameter
1331	*
1332	* @thread EMT
1333	*/
1334	VMMR3DECL(int) VMMR3AtomicExecuteHandler(PVM pVM, PFNATOMICHANDLER pfnHandler, void *pvUser)
1335	{
1336	int rc;
1337	PVMCPU pVCpu = VMMGetCpu(pVM);
1338	AssertReturn(pVCpu, VERR_VM_THREAD_NOT_EMT);
1339
1340	/* Shortcut for the uniprocessor case. */
1341	if (pVM->cCPUs == 1)
1342	return pfnHandler(pVM, pvUser);
1343
1344	RTCritSectEnter(&pVM->vmm.s.CritSectSync);
1345	for (VMCPUID idCpu = 0; idCpu < pVM->cCPUs; idCpu++)
1346	{
1347	if (idCpu != pVCpu->idCpu)
1348	{
1349	rc = VMR3ReqCallU(pVM->pUVM, idCpu, NULL, 0, VMREQFLAGS_NO_WAIT,
1350	(PFNRT)vmmR3SyncVCpu, 1, pVM);
1351	AssertRC(rc);
1352	}
1353	}
1354	/* Wait until all other VCPUs are waiting for us. */
1355	while (RTCritSectGetWaiters(&pVM->vmm.s.CritSectSync) != (int32_t)(pVM->cCPUs - 1))
1356	RTThreadSleep(1);
1357
1358	rc = pfnHandler(pVM, pvUser);
1359	RTCritSectLeave(&pVM->vmm.s.CritSectSync);
1360	return rc;
1361	}
1362
1363
1364	/**
1365	* Count returns and have the last non-caller EMT wake up the caller.
1366	*
1367	* @param pVM The VM handle.
1368	*/
1369	DECL_FORCE_INLINE(void) vmmR3EmtRendezvousNonCallerReturn(PVM pVM)
1370	{
1371	uint32_t cReturned = ASMAtomicIncU32(&pVM->vmm.s.cRendezvousEmtsReturned);
1372	if (cReturned == pVM->cCPUs - 1U)
1373	{
1374	int rc = RTSemEventSignal(pVM->vmm.s.hEvtRendezvousDoneCaller);
1375	AssertLogRelRC(rc);
1376	}
1377	}
1378
1379
1380	/**
1381	* Common worker for VMMR3EmtRendezvous and VMMR3EmtRendezvousFF.
1382	*
1383	* @param pVM The VM handle.
1384	* @param pVCpu The VMCPU structure for the calling EMT.
1385	* @param fIsCaller Whether we're the VMMR3EmtRendezvous caller or
1386	* not.
1387	* @param fFlags The flags.
1388	* @param pfnRendezvous The callback.
1389	* @param pvUser The user argument for the callback.
1390	*/
1391	static void vmmR3EmtRendezvousCommon(PVM pVM, PVMCPU pVCpu, bool fIsCaller,
1392	uint32_t fFlags, PFNVMMEMTRENDEZVOUS pfnRendezvous, void *pvUser)
1393	{
1394	int rc;
1395
1396	/*
1397	* Enter, the last EMT triggers the next callback phase.
1398	*/
1399	uint32_t cEntered = ASMAtomicIncU32(&pVM->vmm.s.cRendezvousEmtsEntered);
1400	if (cEntered != pVM->cCPUs)
1401	{
1402	if ((fFlags & VMMEMTRENDEZVOUS_FLAGS_TYPE_MASK) == VMMEMTRENDEZVOUS_FLAGS_TYPE_ONE_BY_ONE)
1403	{
1404	/* Wait for our turn. */
1405	rc = RTSemEventWait(pVM->vmm.s.hEvtRendezvousEnterOneByOne, RT_INDEFINITE_WAIT);
1406	AssertLogRelRC(rc);
1407	}
1408	else if ((fFlags & VMMEMTRENDEZVOUS_FLAGS_TYPE_MASK) == VMMEMTRENDEZVOUS_FLAGS_TYPE_ALL_AT_ONCE)
1409	{
1410	/* Wait for the last EMT to arrive and wake everyone up. */
1411	rc = RTSemEventMultiWait(pVM->vmm.s.hEvtMulRendezvousEnterAllAtOnce, RT_INDEFINITE_WAIT);
1412	AssertLogRelRC(rc);
1413	}
1414	else
1415	{
1416	Assert((fFlags & VMMEMTRENDEZVOUS_FLAGS_TYPE_MASK) == VMMEMTRENDEZVOUS_FLAGS_TYPE_ONCE);
1417
1418	/*
1419	* The execute once is handled specially to optimize the code flow.
1420	*
1421	* The last EMT to arrive will perform the callback and the other
1422	* EMTs will wait on the Done/DoneCaller semaphores (instead of
1423	* the EnterOneByOne/AllAtOnce) in the meanwhile. When the callback
1424	* returns, that EMT will initiate the normal return sequence.
1425	*/
1426	if (!fIsCaller)
1427	{
1428	rc = RTSemEventMultiWait(pVM->vmm.s.hEvtMulRendezvousDone, RT_INDEFINITE_WAIT);
1429	AssertLogRelRC(rc);
1430
1431	vmmR3EmtRendezvousNonCallerReturn(pVM);
1432	}
1433	return;
1434	}
1435	}
1436	else
1437	{
1438	/*
1439	* All EMTs are waiting, clear the FF and take action according to the
1440	* execution method.
1441	*/
1442	VM_FF_CLEAR(pVM, VM_FF_EMT_RENDEZVOUS);
1443
1444	if ((fFlags & VMMEMTRENDEZVOUS_FLAGS_TYPE_MASK) == VMMEMTRENDEZVOUS_FLAGS_TYPE_ALL_AT_ONCE)
1445	{
1446	/* Wake up everyone. */
1447	rc = RTSemEventMultiSignal(pVM->vmm.s.hEvtMulRendezvousEnterAllAtOnce);
1448	AssertLogRelRC(rc);
1449	}
1450	/* else: execute the handler on the current EMT and wake up one or more threads afterwards. */
1451	}
1452
1453
1454	/*
1455	* Do the callback and update the status if necessary.
1456	*/
1457	rc = pfnRendezvous(pVM, pVCpu, pvUser);
1458	if (rc != VINF_SUCCESS)
1459	{
1460	int32_t i32RendezvousStatus;
1461	do
1462	{
1463	i32RendezvousStatus = ASMAtomicUoReadS32(&pVM->vmm.s.i32RendezvousStatus);
1464	if ( RT_FAILURE(i32RendezvousStatus)
1465	\|\| ( i32RendezvousStatus != VINF_SUCCESS
1466	&& RT_SUCCESS(rc)))
1467	break;
1468	} while (!ASMAtomicCmpXchgS32(&pVM->vmm.s.i32RendezvousStatus, rc, i32RendezvousStatus));
1469	}
1470
1471	/*
1472	* Increment the done counter and take action depending on whether we're
1473	* the last to finish callback execution.
1474	*/
1475	uint32_t cDone = ASMAtomicIncU32(&pVM->vmm.s.cRendezvousEmtsDone);
1476	if ( cDone != pVM->cCPUs
1477	&& (fFlags & VMMEMTRENDEZVOUS_FLAGS_TYPE_MASK) != VMMEMTRENDEZVOUS_FLAGS_TYPE_ONCE)
1478	{
1479	/* Signal the next EMT? */
1480	if ((fFlags & VMMEMTRENDEZVOUS_FLAGS_TYPE_MASK) == VMMEMTRENDEZVOUS_FLAGS_TYPE_ONE_BY_ONE)
1481	{
1482	rc = RTSemEventSignal(pVM->vmm.s.hEvtRendezvousEnterOneByOne);
1483	AssertLogRelRC(rc);
1484	}
1485
1486	/* Wait for the rest to finish (the caller waits on hEvtRendezvousDoneCaller). */
1487	if (!fIsCaller)
1488	{
1489	rc = RTSemEventMultiWait(pVM->vmm.s.hEvtMulRendezvousDone, RT_INDEFINITE_WAIT);
1490	AssertLogRelRC(rc);
1491	}
1492	}
1493	else
1494	{
1495	/* Callback execution is all done, tell the rest to return. */
1496	rc = RTSemEventMultiSignal(pVM->vmm.s.hEvtMulRendezvousDone);
1497	AssertLogRelRC(rc);
1498	}
1499
1500	if (!fIsCaller)
1501	vmmR3EmtRendezvousNonCallerReturn(pVM);
1502	}
1503
1504
1505	/**
1506	* Called in response to VM_FF_EMT_RENDEZVOUS.
1507	*
1508	* @param pVM The VM handle
1509	* @param pVCpu The handle of the calling EMT.
1510	*
1511	* @thread EMT
1512	*/
1513	VMMR3DECL(void) VMMR3EmtRendezvousFF(PVM pVM, PVMCPU pVCpu)
1514	{
1515	vmmR3EmtRendezvousCommon(pVM, pVCpu, false /* fIsCaller */, pVM->vmm.s.fRendezvousFlags,
1516	pVM->vmm.s.pfnRendezvous, pVM->vmm.s.pvRendezvousUser);
1517	}
1518
1519
1520	/**
1521	* EMT rendezvous.
1522	*
1523	* Gathers all the EMTs and execute some code on each of them, either in a one
1524	* by one fashion or all at once.
1525	*
1526	* @returns VBox status code. This will be the first error or, if all succeed,
1527	* the first informational status code.
1528	* @retval VERR_VM_THREAD_NOT_EMT if the caller is not an EMT.
1529	*
1530	* @param pVM The VM handle.
1531	* @param fFlags Flags indicating execution methods. See
1532	* grp_VMMR3EmtRendezvous_fFlags.
1533	* @param pfnRendezvous The callback.
1534	* @param pvUser User argument for the callback.
1535	*
1536	* @thread EMT
1537	*/
1538	VMMR3DECL(int) VMMR3EmtRendezvous(PVM pVM, uint32_t fFlags, PFNVMMEMTRENDEZVOUS pfnRendezvous, void *pvUser)
1539	{
1540	/*
1541	* Validate input.
1542	*/
1543	PVMCPU pVCpu = VMMGetCpu(pVM);
1544	AssertReturn(pVCpu, VERR_VM_THREAD_NOT_EMT);
1545	AssertMsg( (fFlags & VMMEMTRENDEZVOUS_FLAGS_TYPE_MASK) != VMMEMTRENDEZVOUS_FLAGS_TYPE_INVALID
1546	&& !(fFlags & ~VMMEMTRENDEZVOUS_FLAGS_VALID_MASK), ("%#x\n", fFlags));
1547
1548	int rc;
1549	if (pVM->cCPUs == 1)
1550	/*
1551	* Shortcut for the single EMT case.
1552	*/
1553	rc = pfnRendezvous(pVM, pVCpu, pvUser);
1554	else
1555	{
1556	/*
1557	* Spin lock. If busy, wait for the other EMT to finish while keeping a
1558	* lookout of the RENDEZVOUS FF.
1559	*/
1560	while (!ASMAtomicCmpXchgU32(&pVM->vmm.s.u32RendezvousLock, 0x77778888, 0))
1561	{
1562	if (VM_FF_ISPENDING(pVM, VM_FF_EMT_RENDEZVOUS))
1563	VMMR3EmtRendezvousFF(pVM, pVCpu);
1564	}
1565	Assert(!VM_FF_ISPENDING(pVM, VM_FF_EMT_RENDEZVOUS));
1566
1567	/*
1568	* Clear the slate. This is a semaphore ping-pong orgy. :-)
1569	*/
1570	rc = RTSemEventWait(pVM->vmm.s.hEvtRendezvousEnterOneByOne, 0); AssertLogRelMsg(rc == VERR_TIMEOUT \|\| rc == VINF_SUCCESS, ("%Rrc\n", rc));
1571	rc = RTSemEventMultiReset(pVM->vmm.s.hEvtMulRendezvousEnterAllAtOnce); AssertLogRelRC(rc);
1572	rc = RTSemEventMultiReset(pVM->vmm.s.hEvtMulRendezvousDone); AssertLogRelRC(rc);
1573	rc = RTSemEventWait(pVM->vmm.s.hEvtRendezvousDoneCaller, 0); AssertLogRelMsg(rc == VERR_TIMEOUT \|\| rc == VINF_SUCCESS, ("%Rrc\n", rc));
1574	ASMAtomicWriteU32(&pVM->vmm.s.cRendezvousEmtsEntered, 0);
1575	ASMAtomicWriteU32(&pVM->vmm.s.cRendezvousEmtsDone, 0);
1576	ASMAtomicWriteU32(&pVM->vmm.s.cRendezvousEmtsReturned, 0);
1577	ASMAtomicWriteS32(&pVM->vmm.s.i32RendezvousStatus, VINF_SUCCESS);
1578	ASMAtomicWritePtr((void * volatile )&pVM->vmm.s.pfnRendezvous, (void )(uintptr_t)pfnRendezvous);
1579	ASMAtomicWritePtr(&pVM->vmm.s.pvRendezvousUser, pvUser);
1580	ASMAtomicWriteU32(&pVM->vmm.s.fRendezvousFlags, fFlags);
1581
1582	/*
1583	* Set the FF and poke the other EMTs.
1584	*/
1585	VM_FF_SET(pVM, VM_FF_EMT_RENDEZVOUS);
1586	VMR3NotifyGlobalFFU(pVM->pUVM, VMNOTIFYFF_FLAGS_POKE);
1587
1588	/*
1589	* Do the same ourselves.
1590	*/
1591	vmmR3EmtRendezvousCommon(pVM, pVCpu, true /* fIsCaller */, fFlags, pfnRendezvous, pvUser);
1592
1593	/*
1594	* The caller waits for the other EMTs to be done and return before doing
1595	* the cleanup. This makes away with wakeup / reset races we would otherwise
1596	* risk in the multiple release event semaphore code (hEvtRendezvousDoneCaller).
1597	*/
1598	rc = RTSemEventWait(pVM->vmm.s.hEvtRendezvousDoneCaller, RT_INDEFINITE_WAIT);
1599	AssertLogRelRC(rc);
1600
1601	/*
1602	* Get the return code and clean up a little bit.
1603	*/
1604	rc = pVM->vmm.s.i32RendezvousStatus;
1605	ASMAtomicWritePtr((void * volatile *)&pVM->vmm.s.pfnRendezvous, NULL);
1606
1607	ASMAtomicWriteU32(&pVM->vmm.s.u32RendezvousLock, 0);
1608	}
1609
1610	return rc;
1611	}
1612
1613
1614	/**
1615	* Read from the ring 0 jump buffer stack
1616	*
1617	* @returns VBox status code.
1618	*
1619	* @param pVM Pointer to the shared VM structure.
1620	* @param idCpu The ID of the source CPU context (for the address).
1621	* @param pAddress Where to start reading.
1622	* @param pvBuf Where to store the data we've read.
1623	* @param cbRead The number of bytes to read.
1624	*/
1625	VMMR3DECL(int) VMMR3ReadR0Stack(PVM pVM, VMCPUID idCpu, RTHCUINTPTR pAddress, void *pvBuf, size_t cbRead)
1626	{
1627	PVMCPU pVCpu = VMMGetCpuById(pVM, idCpu);
1628	AssertReturn(pVCpu, VERR_INVALID_PARAMETER);
1629
1630	RTHCUINTPTR offset = pVCpu->vmm.s.CallRing3JmpBufR0.SpCheck - pAddress;
1631	if (offset >= pVCpu->vmm.s.CallRing3JmpBufR0.cbSavedStack)
1632	return VERR_INVALID_POINTER;
1633
1634	memcpy(pvBuf, pVCpu->vmm.s.pbEMTStackR3 + pVCpu->vmm.s.CallRing3JmpBufR0.cbSavedStack - offset, cbRead);
1635	return VINF_SUCCESS;
1636	}
1637
1638
1639	/**
1640	* Calls a RC function.
1641	*
1642	* @param pVM The VM handle.
1643	* @param RCPtrEntry The address of the RC function.
1644	* @param cArgs The number of arguments in the ....
1645	* @param ... Arguments to the function.
1646	*/
1647	VMMR3DECL(int) VMMR3CallRC(PVM pVM, RTRCPTR RCPtrEntry, unsigned cArgs, ...)
1648	{
1649	va_list args;
1650	va_start(args, cArgs);
1651	int rc = VMMR3CallRCV(pVM, RCPtrEntry, cArgs, args);
1652	va_end(args);
1653	return rc;
1654	}
1655
1656
1657	/**
1658	* Calls a RC function.
1659	*
1660	* @param pVM The VM handle.
1661	* @param RCPtrEntry The address of the RC function.
1662	* @param cArgs The number of arguments in the ....
1663	* @param args Arguments to the function.
1664	*/
1665	VMMR3DECL(int) VMMR3CallRCV(PVM pVM, RTRCPTR RCPtrEntry, unsigned cArgs, va_list args)
1666	{
1667	/* Raw mode implies 1 VCPU. */
1668	AssertReturn(pVM->cCPUs == 1, VERR_RAW_MODE_INVALID_SMP);
1669	PVMCPU pVCpu = &pVM->aCpus[0];
1670
1671	Log2(("VMMR3CallGCV: RCPtrEntry=%RRv cArgs=%d\n", RCPtrEntry, cArgs));
1672
1673	/*
1674	* Setup the call frame using the trampoline.
1675	*/
1676	CPUMHyperSetCtxCore(pVCpu, NULL);
1677	memset(pVCpu->vmm.s.pbEMTStackR3, 0xaa, VMM_STACK_SIZE); /* Clear the stack. */
1678	CPUMSetHyperESP(pVCpu, pVCpu->vmm.s.pbEMTStackBottomRC - cArgs * sizeof(RTGCUINTPTR32));
1679	PRTGCUINTPTR32 pFrame = (PRTGCUINTPTR32)(pVCpu->vmm.s.pbEMTStackR3 + VMM_STACK_SIZE) - cArgs;
1680	int i = cArgs;
1681	while (i-- > 0)
1682	*pFrame++ = va_arg(args, RTGCUINTPTR32);
1683
1684	CPUMPushHyper(pVCpu, cArgs * sizeof(RTGCUINTPTR32)); /* stack frame size */
1685	CPUMPushHyper(pVCpu, RCPtrEntry); /* what to call */
1686	CPUMSetHyperEIP(pVCpu, pVM->vmm.s.pfnCallTrampolineRC);
1687
1688	/*
1689	* We hide log flushes (outer) and hypervisor interrupts (inner).
1690	*/
1691	for (;;)
1692	{
1693	int rc;
1694	Assert(CPUMGetHyperCR3(pVCpu) && CPUMGetHyperCR3(pVCpu) == PGMGetHyperCR3(pVCpu));
1695	do
1696	{
1697	#ifdef NO_SUPCALLR0VMM
1698	rc = VERR_GENERAL_FAILURE;
1699	#else
1700	rc = SUPR3CallVMMR0Fast(pVM->pVMR0, VMMR0_DO_RAW_RUN, 0);
1701	if (RT_LIKELY(rc == VINF_SUCCESS))
1702	rc = pVCpu->vmm.s.iLastGZRc;
1703	#endif
1704	} while (rc == VINF_EM_RAW_INTERRUPT_HYPER);
1705
1706	/*
1707	* Flush the logs.
1708	*/
1709	#ifdef LOG_ENABLED
1710	PRTLOGGERRC pLogger = pVM->vmm.s.pRCLoggerR3;
1711	if ( pLogger
1712	&& pLogger->offScratch > 0)
1713	RTLogFlushRC(NULL, pLogger);
1714	#endif
1715	#ifdef VBOX_WITH_RC_RELEASE_LOGGING
1716	PRTLOGGERRC pRelLogger = pVM->vmm.s.pRCRelLoggerR3;
1717	if (RT_UNLIKELY(pRelLogger && pRelLogger->offScratch > 0))
1718	RTLogFlushRC(RTLogRelDefaultInstance(), pRelLogger);
1719	#endif
1720	if (rc == VERR_TRPM_PANIC \|\| rc == VERR_TRPM_DONT_PANIC)
1721	VMMR3FatalDump(pVM, pVCpu, rc);
1722	if (rc != VINF_VMM_CALL_HOST)
1723	{
1724	Log2(("VMMR3CallGCV: returns %Rrc (cs:eip=%04x:%08x)\n", rc, CPUMGetGuestCS(pVCpu), CPUMGetGuestEIP(pVCpu)));
1725	return rc;
1726	}
1727	rc = vmmR3ServiceCallRing3Request(pVM, pVCpu);
1728	if (RT_FAILURE(rc))
1729	return rc;
1730	}
1731	}
1732
1733
1734	/**
1735	* Wrapper for SUPR3CallVMMR0Ex which will deal with VINF_VMM_CALL_HOST returns.
1736	*
1737	* @returns VBox status code.
1738	* @param pVM The VM to operate on.
1739	* @param uOperation Operation to execute.
1740	* @param u64Arg Constant argument.
1741	* @param pReqHdr Pointer to a request header. See SUPR3CallVMMR0Ex for
1742	* details.
1743	*/
1744	VMMR3DECL(int) VMMR3CallR0(PVM pVM, uint32_t uOperation, uint64_t u64Arg, PSUPVMMR0REQHDR pReqHdr)
1745	{
1746	PVMCPU pVCpu = VMMGetCpu(pVM);
1747	AssertReturn(pVCpu, VERR_VM_THREAD_NOT_EMT);
1748
1749	/*
1750	* Call Ring-0 entry with init code.
1751	*/
1752	int rc;
1753	for (;;)
1754	{
1755	#ifdef NO_SUPCALLR0VMM
1756	rc = VERR_GENERAL_FAILURE;
1757	#else
1758	rc = SUPR3CallVMMR0Ex(pVM->pVMR0, pVCpu->idCpu, uOperation, u64Arg, pReqHdr);
1759	#endif
1760	/*
1761	* Flush the logs.
1762	*/
1763	#ifdef LOG_ENABLED
1764	if ( pVCpu->vmm.s.pR0LoggerR3
1765	&& pVCpu->vmm.s.pR0LoggerR3->Logger.offScratch > 0)
1766	RTLogFlushToLogger(&pVCpu->vmm.s.pR0LoggerR3->Logger, NULL);
1767	#endif
1768	if (rc != VINF_VMM_CALL_HOST)
1769	break;
1770	rc = vmmR3ServiceCallRing3Request(pVM, pVCpu);
1771	if (RT_FAILURE(rc) \|\| (rc >= VINF_EM_FIRST && rc <= VINF_EM_LAST))
1772	break;
1773	/* Resume R0 */
1774	}
1775
1776	AssertLogRelMsgReturn(rc == VINF_SUCCESS \|\| VBOX_FAILURE(rc),
1777	("uOperation=%u rc=%Rrc\n", uOperation, rc),
1778	VERR_INTERNAL_ERROR);
1779	return rc;
1780	}
1781
1782
1783	/**
1784	* Resumes executing hypervisor code when interrupted by a queue flush or a
1785	* debug event.
1786	*
1787	* @returns VBox status code.
1788	* @param pVM VM handle.
1789	* @param pVCpu VMCPU handle.
1790	*/
1791	VMMR3DECL(int) VMMR3ResumeHyper(PVM pVM, PVMCPU pVCpu)
1792	{
1793	Log(("VMMR3ResumeHyper: eip=%RRv esp=%RRv\n", CPUMGetHyperEIP(pVCpu), CPUMGetHyperESP(pVCpu)));
1794	AssertReturn(pVM->cCPUs == 1, VERR_RAW_MODE_INVALID_SMP);
1795
1796	/*
1797	* We hide log flushes (outer) and hypervisor interrupts (inner).
1798	*/
1799	for (;;)
1800	{
1801	int rc;
1802	Assert(CPUMGetHyperCR3(pVCpu) && CPUMGetHyperCR3(pVCpu) == PGMGetHyperCR3(pVCpu));
1803	do
1804	{
1805	#ifdef NO_SUPCALLR0VMM
1806	rc = VERR_GENERAL_FAILURE;
1807	#else
1808	rc = SUPR3CallVMMR0Fast(pVM->pVMR0, VMMR0_DO_RAW_RUN, 0);
1809	if (RT_LIKELY(rc == VINF_SUCCESS))
1810	rc = pVCpu->vmm.s.iLastGZRc;
1811	#endif
1812	} while (rc == VINF_EM_RAW_INTERRUPT_HYPER);
1813
1814	/*
1815	* Flush the loggers,
1816	*/
1817	#ifdef LOG_ENABLED
1818	PRTLOGGERRC pLogger = pVM->vmm.s.pRCLoggerR3;
1819	if ( pLogger
1820	&& pLogger->offScratch > 0)
1821	RTLogFlushRC(NULL, pLogger);
1822	#endif
1823	#ifdef VBOX_WITH_RC_RELEASE_LOGGING
1824	PRTLOGGERRC pRelLogger = pVM->vmm.s.pRCRelLoggerR3;
1825	if (RT_UNLIKELY(pRelLogger && pRelLogger->offScratch > 0))
1826	RTLogFlushRC(RTLogRelDefaultInstance(), pRelLogger);
1827	#endif
1828	if (rc == VERR_TRPM_PANIC \|\| rc == VERR_TRPM_DONT_PANIC)
1829	VMMR3FatalDump(pVM, pVCpu, rc);
1830	if (rc != VINF_VMM_CALL_HOST)
1831	{
1832	Log(("VMMR3ResumeHyper: returns %Rrc\n", rc));
1833	return rc;
1834	}
1835	rc = vmmR3ServiceCallRing3Request(pVM, pVCpu);
1836	if (RT_FAILURE(rc))
1837	return rc;
1838	}
1839	}
1840
1841
1842	/**
1843	* Service a call to the ring-3 host code.
1844	*
1845	* @returns VBox status code.
1846	* @param pVM VM handle.
1847	* @param pVCpu VMCPU handle
1848	* @remark Careful with critsects.
1849	*/
1850	static int vmmR3ServiceCallRing3Request(PVM pVM, PVMCPU pVCpu)
1851	{
1852	/*
1853	* We must also check for pending critsect exits or else we can deadlock
1854	* when entering other critsects here.
1855	*/
1856	if (VMCPU_FF_ISPENDING(pVCpu, VMCPU_FF_PDM_CRITSECT))
1857	PDMCritSectFF(pVCpu);
1858
1859	switch (pVCpu->vmm.s.enmCallRing3Operation)
1860	{
1861	/*
1862	* Acquire the PDM lock.
1863	*/
1864	case VMMCALLRING3_PDM_LOCK:
1865	{
1866	pVCpu->vmm.s.rcCallRing3 = PDMR3LockCall(pVM);
1867	break;
1868	}
1869
1870	/*
1871	* Flush a PDM queue.
1872	*/
1873	case VMMCALLRING3_PDM_QUEUE_FLUSH:
1874	{
1875	PDMR3QueueFlushWorker(pVM, NULL);
1876	pVCpu->vmm.s.rcCallRing3 = VINF_SUCCESS;
1877	break;
1878	}
1879
1880	/*
1881	* Grow the PGM pool.
1882	*/
1883	case VMMCALLRING3_PGM_POOL_GROW:
1884	{
1885	pVCpu->vmm.s.rcCallRing3 = PGMR3PoolGrow(pVM);
1886	break;
1887	}
1888
1889	/*
1890	* Maps an page allocation chunk into ring-3 so ring-0 can use it.
1891	*/
1892	case VMMCALLRING3_PGM_MAP_CHUNK:
1893	{
1894	pVCpu->vmm.s.rcCallRing3 = PGMR3PhysChunkMap(pVM, pVCpu->vmm.s.u64CallRing3Arg);
1895	break;
1896	}
1897
1898	/*
1899	* Allocates more handy pages.
1900	*/
1901	case VMMCALLRING3_PGM_ALLOCATE_HANDY_PAGES:
1902	{
1903	pVCpu->vmm.s.rcCallRing3 = PGMR3PhysAllocateHandyPages(pVM);
1904	break;
1905	}
1906
1907	/*
1908	* Acquire the PGM lock.
1909	*/
1910	case VMMCALLRING3_PGM_LOCK:
1911	{
1912	pVCpu->vmm.s.rcCallRing3 = PGMR3LockCall(pVM);
1913	break;
1914	}
1915
1916	/*
1917	* Acquire the MM hypervisor heap lock.
1918	*/
1919	case VMMCALLRING3_MMHYPER_LOCK:
1920	{
1921	pVCpu->vmm.s.rcCallRing3 = MMR3LockCall(pVM);
1922	break;
1923	}
1924
1925	/*
1926	* Flush REM handler notifications.
1927	*/
1928	case VMMCALLRING3_REM_REPLAY_HANDLER_NOTIFICATIONS:
1929	{
1930	REMR3ReplayHandlerNotifications(pVM);
1931	pVCpu->vmm.s.rcCallRing3 = VINF_SUCCESS;
1932	break;
1933	}
1934
1935	/*
1936	* This is a noop. We just take this route to avoid unnecessary
1937	* tests in the loops.
1938	*/
1939	case VMMCALLRING3_VMM_LOGGER_FLUSH:
1940	pVCpu->vmm.s.rcCallRing3 = VINF_SUCCESS;
1941	LogAlways(("FLUSH\n"));
1942	break;
1943
1944	/*
1945	* Set the VM error message.
1946	*/
1947	case VMMCALLRING3_VM_SET_ERROR:
1948	VMR3SetErrorWorker(pVM);
1949	pVCpu->vmm.s.rcCallRing3 = VINF_SUCCESS;
1950	break;
1951
1952	/*
1953	* Set the VM runtime error message.
1954	*/
1955	case VMMCALLRING3_VM_SET_RUNTIME_ERROR:
1956	pVCpu->vmm.s.rcCallRing3 = VMR3SetRuntimeErrorWorker(pVM);
1957	break;
1958
1959	/*
1960	* Signal a ring 0 hypervisor assertion.
1961	* Cancel the longjmp operation that's in progress.
1962	*/
1963	case VMMCALLRING3_VM_R0_ASSERTION:
1964	pVCpu->vmm.s.enmCallRing3Operation = VMMCALLRING3_INVALID;
1965	pVCpu->vmm.s.CallRing3JmpBufR0.fInRing3Call = false;
1966	#ifdef RT_ARCH_X86
1967	pVCpu->vmm.s.CallRing3JmpBufR0.eip = 0;
1968	#else
1969	pVCpu->vmm.s.CallRing3JmpBufR0.rip = 0;
1970	#endif
1971	LogRel((pVM->vmm.s.szRing0AssertMsg1));
1972	LogRel((pVM->vmm.s.szRing0AssertMsg2));
1973	return VERR_VMM_RING0_ASSERTION;
1974
1975	/*
1976	* A forced switch to ring 0 for preemption purposes.
1977	*/
1978	case VMMCALLRING3_VM_R0_PREEMPT:
1979	pVCpu->vmm.s.rcCallRing3 = VINF_SUCCESS;
1980	break;
1981
1982	default:
1983	AssertMsgFailed(("enmCallRing3Operation=%d\n", pVCpu->vmm.s.enmCallRing3Operation));
1984	return VERR_INTERNAL_ERROR;
1985	}
1986
1987	pVCpu->vmm.s.enmCallRing3Operation = VMMCALLRING3_INVALID;
1988	return VINF_SUCCESS;
1989	}
1990
1991
1992	/**
1993	* Displays the Force action Flags.
1994	*
1995	* @param pVM The VM handle.
1996	* @param pHlp The output helpers.
1997	* @param pszArgs The additional arguments (ignored).
1998	*/
1999	static DECLCALLBACK(void) vmmR3InfoFF(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs)
2000	{
2001	int c;
2002	uint32_t f;
2003	#define PRINT_FLAG(prf,flag) do { \
2004	if (f & (prf##flag)) \
2005	{ \
2006	static const char *s_psz = #flag; \
2007	if (!(c % 6)) \
2008	pHlp->pfnPrintf(pHlp, "%s\n %s", c ? "," : "", s_psz); \
2009	else \
2010	pHlp->pfnPrintf(pHlp, ", %s", s_psz); \
2011	c++; \
2012	f &= ~(prf##flag); \
2013	} \
2014	} while (0)
2015
2016	#define PRINT_GROUP(prf,grp,sfx) do { \
2017	if (f & (prf##grp##sfx)) \
2018	{ \
2019	static const char *s_psz = #grp; \
2020	if (!(c % 5)) \
2021	pHlp->pfnPrintf(pHlp, "%s %s", c ? ",\n" : " Groups:\n", s_psz); \
2022	else \
2023	pHlp->pfnPrintf(pHlp, ", %s", s_psz); \
2024	c++; \
2025	} \
2026	} while (0)
2027
2028	/*
2029	* The global flags.
2030	*/
2031	const uint32_t fGlobalForcedActions = pVM->fGlobalForcedActions;
2032	pHlp->pfnPrintf(pHlp, "Global FFs: %#RX32", fGlobalForcedActions);
2033
2034	/* show the flag mnemonics */
2035	c = 0;
2036	f = fGlobalForcedActions;
2037	PRINT_FLAG(VM_FF_,TM_VIRTUAL_SYNC);
2038	PRINT_FLAG(VM_FF_,PDM_QUEUES);
2039	PRINT_FLAG(VM_FF_,PDM_DMA);
2040	PRINT_FLAG(VM_FF_,DBGF);
2041	PRINT_FLAG(VM_FF_,REQUEST);
2042	PRINT_FLAG(VM_FF_,TERMINATE);
2043	PRINT_FLAG(VM_FF_,RESET);
2044	PRINT_FLAG(VM_FF_,EMT_RENDEZVOUS);
2045	PRINT_FLAG(VM_FF_,PGM_NEED_HANDY_PAGES);
2046	PRINT_FLAG(VM_FF_,PGM_NO_MEMORY);
2047	PRINT_FLAG(VM_FF_,REM_HANDLER_NOTIFY);
2048	PRINT_FLAG(VM_FF_,DEBUG_SUSPEND);
2049	if (f)
2050	pHlp->pfnPrintf(pHlp, "%s\n Unknown bits: %#RX32\n", c ? "," : "", f);
2051	else
2052	pHlp->pfnPrintf(pHlp, "\n");
2053
2054	/* the groups */
2055	c = 0;
2056	f = fGlobalForcedActions;
2057	PRINT_GROUP(VM_FF_,EXTERNAL_SUSPENDED,_MASK);
2058	PRINT_GROUP(VM_FF_,EXTERNAL_HALTED,_MASK);
2059	PRINT_GROUP(VM_FF_,HIGH_PRIORITY_PRE,_MASK);
2060	PRINT_GROUP(VM_FF_,HIGH_PRIORITY_PRE_RAW,_MASK);
2061	PRINT_GROUP(VM_FF_,HIGH_PRIORITY_POST,_MASK);
2062	PRINT_GROUP(VM_FF_,NORMAL_PRIORITY_POST,_MASK);
2063	PRINT_GROUP(VM_FF_,NORMAL_PRIORITY,_MASK);
2064	PRINT_GROUP(VM_FF_,ALL_BUT_RAW,_MASK);
2065	if (c)
2066	pHlp->pfnPrintf(pHlp, "\n");
2067
2068	/*
2069	* Per CPU flags.
2070	*/
2071	for (VMCPUID i = 0; i < pVM->cCPUs; i++)
2072	{
2073	const uint32_t fLocalForcedActions = pVM->aCpus[i].fLocalForcedActions;
2074	pHlp->pfnPrintf(pHlp, "CPU %u FFs: %#RX32", i, fLocalForcedActions);
2075
2076	/* show the flag mnemonics */
2077	c = 0;
2078	f = fLocalForcedActions;
2079	PRINT_FLAG(VMCPU_FF_,INTERRUPT_APIC);
2080	PRINT_FLAG(VMCPU_FF_,INTERRUPT_PIC);
2081	PRINT_FLAG(VMCPU_FF_,TIMER);
2082	PRINT_FLAG(VMCPU_FF_,PDM_CRITSECT);
2083	PRINT_FLAG(VMCPU_FF_,PGM_SYNC_CR3);
2084	PRINT_FLAG(VMCPU_FF_,PGM_SYNC_CR3_NON_GLOBAL);
2085	PRINT_FLAG(VMCPU_FF_,TRPM_SYNC_IDT);
2086	PRINT_FLAG(VMCPU_FF_,SELM_SYNC_TSS);
2087	PRINT_FLAG(VMCPU_FF_,SELM_SYNC_GDT);
2088	PRINT_FLAG(VMCPU_FF_,SELM_SYNC_LDT);
2089	PRINT_FLAG(VMCPU_FF_,INHIBIT_INTERRUPTS);
2090	PRINT_FLAG(VMCPU_FF_,CSAM_SCAN_PAGE);
2091	PRINT_FLAG(VMCPU_FF_,CSAM_PENDING_ACTION);
2092	PRINT_FLAG(VMCPU_FF_,TO_R3);
2093	if (f)
2094	pHlp->pfnPrintf(pHlp, "%s\n Unknown bits: %#RX32\n", c ? "," : "", f);
2095	else
2096	pHlp->pfnPrintf(pHlp, "\n");
2097
2098	/* the groups */
2099	c = 0;
2100	f = fLocalForcedActions;
2101	PRINT_GROUP(VMCPU_FF_,EXTERNAL_SUSPENDED,_MASK);
2102	PRINT_GROUP(VMCPU_FF_,EXTERNAL_HALTED,_MASK);
2103	PRINT_GROUP(VMCPU_FF_,HIGH_PRIORITY_PRE,_MASK);
2104	PRINT_GROUP(VMCPU_FF_,HIGH_PRIORITY_PRE_RAW,_MASK);
2105	PRINT_GROUP(VMCPU_FF_,HIGH_PRIORITY_POST,_MASK);
2106	PRINT_GROUP(VMCPU_FF_,NORMAL_PRIORITY_POST,_MASK);
2107	PRINT_GROUP(VMCPU_FF_,NORMAL_PRIORITY,_MASK);
2108	PRINT_GROUP(VMCPU_FF_,RESUME_GUEST,_MASK);
2109	PRINT_GROUP(VMCPU_FF_,HWACCM_TO_R3,_MASK);
2110	PRINT_GROUP(VMCPU_FF_,ALL_BUT_RAW,_MASK);
2111	if (c)
2112	pHlp->pfnPrintf(pHlp, "\n");
2113	}
2114
2115	#undef PRINT_FLAG
2116	#undef PRINT_GROUP
2117	}
2118

Note: See TracBrowser for help on using the repository browser.

source: vbox/trunk/src/VBox/VMM/VMM.cpp@ 21086

Download in other formats: