VMM.cpp@ 23794

Last change on this file since 23794 was 23730, checked in by vboxsync, 15 years ago
VMM: Don't save the R0/RC stack (old todo).
Property svn:eol-style set to `native` Property svn:keywords set to `Id`
File size: 80.1 KB

Line
1	/* $Id: VMM.cpp 23730 2009-10-13 14:33:08Z 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 4
103	/** The saved state version used by v3.0 and earlier. (Live migration.) */
104	#define VMM_SAVED_STATE_VERSION_3_0 3
105
106
107	/*******************************************************************************
108	* Internal Functions *
109	*******************************************************************************/
110	static int vmmR3InitStacks(PVM pVM);
111	static int vmmR3InitLoggers(PVM pVM);
112	static void vmmR3InitRegisterStats(PVM pVM);
113	static DECLCALLBACK(int) vmmR3Save(PVM pVM, PSSMHANDLE pSSM);
114	static DECLCALLBACK(int) vmmR3Load(PVM pVM, PSSMHANDLE pSSM, uint32_t uVersion, uint32_t uPass);
115	static DECLCALLBACK(void) vmmR3YieldEMT(PVM pVM, PTMTIMER pTimer, void *pvUser);
116	static int vmmR3ServiceCallRing3Request(PVM pVM, PVMCPU pVCpu);
117	static DECLCALLBACK(void) vmmR3InfoFF(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs);
118
119
120	/**
121	* Initializes the VMM.
122	*
123	* @returns VBox status code.
124	* @param pVM The VM to operate on.
125	*/
126	VMMR3DECL(int) VMMR3Init(PVM pVM)
127	{
128	LogFlow(("VMMR3Init\n"));
129
130	/*
131	* Assert alignment, sizes and order.
132	*/
133	AssertMsg(pVM->vmm.s.offVM == 0, ("Already initialized!\n"));
134	AssertCompile(sizeof(pVM->vmm.s) <= sizeof(pVM->vmm.padding));
135	AssertCompile(sizeof(pVM->aCpus[0].vmm.s) <= sizeof(pVM->aCpus[0].vmm.padding));
136
137	/*
138	* Init basic VM VMM members.
139	*/
140	pVM->vmm.s.offVM = RT_OFFSETOF(VM, vmm);
141	pVM->vmm.s.pahEvtRendezvousEnterOrdered = NULL;
142	pVM->vmm.s.hEvtRendezvousEnterOneByOne = NIL_RTSEMEVENT;
143	pVM->vmm.s.hEvtMulRendezvousEnterAllAtOnce = NIL_RTSEMEVENTMULTI;
144	pVM->vmm.s.hEvtMulRendezvousDone = NIL_RTSEMEVENTMULTI;
145	pVM->vmm.s.hEvtRendezvousDoneCaller = NIL_RTSEMEVENT;
146	int rc = CFGMR3QueryU32(CFGMR3GetRoot(pVM), "YieldEMTInterval", &pVM->vmm.s.cYieldEveryMillies);
147	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
148	pVM->vmm.s.cYieldEveryMillies = 23; /* Value arrived at after experimenting with the grub boot prompt. */
149	//pVM->vmm.s.cYieldEveryMillies = 8; //debugging
150	else
151	AssertMsgRCReturn(rc, ("Configuration error. Failed to query \"YieldEMTInterval\", rc=%Rrc\n", rc), rc);
152
153	/*
154	* Initialize the VMM sync critical section and semaphores.
155	*/
156	rc = RTCritSectInit(&pVM->vmm.s.CritSectSync);
157	AssertRCReturn(rc, rc);
158	pVM->vmm.s.pahEvtRendezvousEnterOrdered = (PRTSEMEVENT)MMR3HeapAlloc(pVM, MM_TAG_VMM, sizeof(RTSEMEVENT) * pVM->cCpus);
159	if (!pVM->vmm.s.pahEvtRendezvousEnterOrdered)
160	return VERR_NO_MEMORY;
161	for (VMCPUID i = 0; i < pVM->cCpus; i++)
162	pVM->vmm.s.pahEvtRendezvousEnterOrdered[i] = NIL_RTSEMEVENT;
163	for (VMCPUID i = 0; i < pVM->cCpus; i++)
164	{
165	rc = RTSemEventCreate(&pVM->vmm.s.pahEvtRendezvousEnterOrdered[i]);
166	AssertRCReturn(rc, rc);
167	}
168	rc = RTSemEventCreate(&pVM->vmm.s.hEvtRendezvousEnterOneByOne);
169	AssertRCReturn(rc, rc);
170	rc = RTSemEventMultiCreate(&pVM->vmm.s.hEvtMulRendezvousEnterAllAtOnce);
171	AssertRCReturn(rc, rc);
172	rc = RTSemEventMultiCreate(&pVM->vmm.s.hEvtMulRendezvousDone);
173	AssertRCReturn(rc, rc);
174	rc = RTSemEventCreate(&pVM->vmm.s.hEvtRendezvousDoneCaller);
175	AssertRCReturn(rc, rc);
176
177	/* GC switchers are enabled by default. Turned off by HWACCM. */
178	pVM->vmm.s.fSwitcherDisabled = false;
179
180	/*
181	* Register the saved state data unit.
182	*/
183	rc = SSMR3RegisterInternal(pVM, "vmm", 1, VMM_SAVED_STATE_VERSION, VMM_STACK_SIZE + sizeof(RTGCPTR),
184	NULL, NULL, NULL,
185	NULL, vmmR3Save, NULL,
186	NULL, vmmR3Load, NULL);
187	if (RT_FAILURE(rc))
188	return rc;
189
190	/*
191	* Register the Ring-0 VM handle with the session for fast ioctl calls.
192	*/
193	rc = SUPR3SetVMForFastIOCtl(pVM->pVMR0);
194	if (RT_FAILURE(rc))
195	return rc;
196
197	/*
198	* Init various sub-components.
199	*/
200	rc = vmmR3SwitcherInit(pVM);
201	if (RT_SUCCESS(rc))
202	{
203	rc = vmmR3InitStacks(pVM);
204	if (RT_SUCCESS(rc))
205	{
206	rc = vmmR3InitLoggers(pVM);
207
208	#ifdef VBOX_WITH_NMI
209	/*
210	* Allocate mapping for the host APIC.
211	*/
212	if (RT_SUCCESS(rc))
213	{
214	rc = MMR3HyperReserve(pVM, PAGE_SIZE, "Host APIC", &pVM->vmm.s.GCPtrApicBase);
215	AssertRC(rc);
216	}
217	#endif
218	if (RT_SUCCESS(rc))
219	{
220	/*
221	* Debug info and statistics.
222	*/
223	DBGFR3InfoRegisterInternal(pVM, "ff", "Displays the current Forced actions Flags.", vmmR3InfoFF);
224	vmmR3InitRegisterStats(pVM);
225
226	return VINF_SUCCESS;
227	}
228	}
229	/** @todo: Need failure cleanup. */
230
231	//more todo in here?
232	//if (RT_SUCCESS(rc))
233	//{
234	//}
235	//int rc2 = vmmR3TermCoreCode(pVM);
236	//AssertRC(rc2));
237	}
238
239	return rc;
240	}
241
242
243	/**
244	* Allocate & setup the VMM RC stack(s) (for EMTs).
245	*
246	* The stacks are also used for long jumps in Ring-0.
247	*
248	* @returns VBox status code.
249	* @param pVM Pointer to the shared VM structure.
250	*
251	* @remarks The optional guard page gets it protection setup up during R3 init
252	* completion because of init order issues.
253	*/
254	static int vmmR3InitStacks(PVM pVM)
255	{
256	int rc = VINF_SUCCESS;
257	#ifdef VMM_R0_SWITCH_STACK
258	uint32_t fFlags = MMHYPER_AONR_FLAGS_KERNEL_MAPPING;
259	#else
260	uint32_t fFlags = 0;
261	#endif
262
263	for (VMCPUID idCpu = 0; idCpu < pVM->cCpus; idCpu++)
264	{
265	PVMCPU pVCpu = &pVM->aCpus[idCpu];
266
267	#ifdef VBOX_STRICT_VMM_STACK
268	rc = MMR3HyperAllocOnceNoRelEx(pVM, PAGE_SIZE + VMM_STACK_SIZE + PAGE_SIZE,
269	#else
270	rc = MMR3HyperAllocOnceNoRelEx(pVM, VMM_STACK_SIZE,
271	#endif
272	PAGE_SIZE, MM_TAG_VMM, fFlags, (void **)&pVCpu->vmm.s.pbEMTStackR3);
273	if (RT_SUCCESS(rc))
274	{
275	#ifdef VBOX_STRICT_VMM_STACK
276	pVCpu->vmm.s.pbEMTStackR3 += PAGE_SIZE;
277	#endif
278	#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
279	/* MMHyperR3ToR0 returns R3 when not doing hardware assisted virtualization. */
280	if (!VMMIsHwVirtExtForced(pVM))
281	pVCpu->vmm.s.CallRing3JmpBufR0.pvSavedStack = NIL_RTR0PTR;
282	else
283	#endif
284	pVCpu->vmm.s.CallRing3JmpBufR0.pvSavedStack = MMHyperR3ToR0(pVM, pVCpu->vmm.s.pbEMTStackR3);
285	pVCpu->vmm.s.pbEMTStackRC = MMHyperR3ToRC(pVM, pVCpu->vmm.s.pbEMTStackR3);
286	pVCpu->vmm.s.pbEMTStackBottomRC = pVCpu->vmm.s.pbEMTStackRC + VMM_STACK_SIZE;
287	AssertRelease(pVCpu->vmm.s.pbEMTStackRC);
288
289	CPUMSetHyperESP(pVCpu, pVCpu->vmm.s.pbEMTStackBottomRC);
290	}
291	}
292
293	return rc;
294	}
295
296
297	/**
298	* Initialize the loggers.
299	*
300	* @returns VBox status code.
301	* @param pVM Pointer to the shared VM structure.
302	*/
303	static int vmmR3InitLoggers(PVM pVM)
304	{
305	int rc;
306
307	/*
308	* Allocate RC & R0 Logger instances (they are finalized in the relocator).
309	*/
310	#ifdef LOG_ENABLED
311	PRTLOGGER pLogger = RTLogDefaultInstance();
312	if (pLogger)
313	{
314	pVM->vmm.s.cbRCLogger = RT_OFFSETOF(RTLOGGERRC, afGroups[pLogger->cGroups]);
315	rc = MMR3HyperAllocOnceNoRel(pVM, pVM->vmm.s.cbRCLogger, 0, MM_TAG_VMM, (void **)&pVM->vmm.s.pRCLoggerR3);
316	if (RT_FAILURE(rc))
317	return rc;
318	pVM->vmm.s.pRCLoggerRC = MMHyperR3ToRC(pVM, pVM->vmm.s.pRCLoggerR3);
319
320	# ifdef VBOX_WITH_R0_LOGGING
321	for (VMCPUID i = 0; i < pVM->cCpus; i++)
322	{
323	PVMCPU pVCpu = &pVM->aCpus[i];
324
325	rc = MMR3HyperAllocOnceNoRelEx(pVM, RT_OFFSETOF(VMMR0LOGGER, Logger.afGroups[pLogger->cGroups]),
326	0, MM_TAG_VMM, MMHYPER_AONR_FLAGS_KERNEL_MAPPING,
327	(void **)&pVCpu->vmm.s.pR0LoggerR3);
328	if (RT_FAILURE(rc))
329	return rc;
330	pVCpu->vmm.s.pR0LoggerR3->pVM = pVM->pVMR0;
331	//pVCpu->vmm.s.pR0LoggerR3->fCreated = false;
332	pVCpu->vmm.s.pR0LoggerR3->cbLogger = RT_OFFSETOF(RTLOGGER, afGroups[pLogger->cGroups]);
333	pVCpu->vmm.s.pR0LoggerR0 = MMHyperR3ToR0(pVM, pVCpu->vmm.s.pR0LoggerR3);
334	}
335	# endif
336	}
337	#endif /* LOG_ENABLED */
338
339	#ifdef VBOX_WITH_RC_RELEASE_LOGGING
340	/*
341	* Allocate RC release logger instances (finalized in the relocator).
342	*/
343	PRTLOGGER pRelLogger = RTLogRelDefaultInstance();
344	if (pRelLogger)
345	{
346	pVM->vmm.s.cbRCRelLogger = RT_OFFSETOF(RTLOGGERRC, afGroups[pRelLogger->cGroups]);
347	rc = MMR3HyperAllocOnceNoRel(pVM, pVM->vmm.s.cbRCRelLogger, 0, MM_TAG_VMM, (void **)&pVM->vmm.s.pRCRelLoggerR3);
348	if (RT_FAILURE(rc))
349	return rc;
350	pVM->vmm.s.pRCRelLoggerRC = MMHyperR3ToRC(pVM, pVM->vmm.s.pRCRelLoggerR3);
351	}
352	#endif /* VBOX_WITH_RC_RELEASE_LOGGING */
353	return VINF_SUCCESS;
354	}
355
356
357	/**
358	* VMMR3Init worker that register the statistics with STAM.
359	*
360	* @param pVM The shared VM structure.
361	*/
362	static void vmmR3InitRegisterStats(PVM pVM)
363	{
364	/*
365	* Statistics.
366	*/
367	STAM_REG(pVM, &pVM->vmm.s.StatRunRC, STAMTYPE_COUNTER, "/VMM/RunRC", STAMUNIT_OCCURENCES, "Number of context switches.");
368	STAM_REG(pVM, &pVM->vmm.s.StatRZRetNormal, STAMTYPE_COUNTER, "/VMM/RZRet/Normal", STAMUNIT_OCCURENCES, "Number of VINF_SUCCESS returns.");
369	STAM_REG(pVM, &pVM->vmm.s.StatRZRetInterrupt, STAMTYPE_COUNTER, "/VMM/RZRet/Interrupt", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_INTERRUPT returns.");
370	STAM_REG(pVM, &pVM->vmm.s.StatRZRetInterruptHyper, STAMTYPE_COUNTER, "/VMM/RZRet/InterruptHyper", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_INTERRUPT_HYPER returns.");
371	STAM_REG(pVM, &pVM->vmm.s.StatRZRetGuestTrap, STAMTYPE_COUNTER, "/VMM/RZRet/GuestTrap", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_GUEST_TRAP returns.");
372	STAM_REG(pVM, &pVM->vmm.s.StatRZRetRingSwitch, STAMTYPE_COUNTER, "/VMM/RZRet/RingSwitch", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_RING_SWITCH returns.");
373	STAM_REG(pVM, &pVM->vmm.s.StatRZRetRingSwitchInt, STAMTYPE_COUNTER, "/VMM/RZRet/RingSwitchInt", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_RING_SWITCH_INT returns.");
374	STAM_REG(pVM, &pVM->vmm.s.StatRZRetStaleSelector, STAMTYPE_COUNTER, "/VMM/RZRet/StaleSelector", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_STALE_SELECTOR returns.");
375	STAM_REG(pVM, &pVM->vmm.s.StatRZRetIRETTrap, STAMTYPE_COUNTER, "/VMM/RZRet/IRETTrap", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_IRET_TRAP returns.");
376	STAM_REG(pVM, &pVM->vmm.s.StatRZRetEmulate, STAMTYPE_COUNTER, "/VMM/RZRet/Emulate", STAMUNIT_OCCURENCES, "Number of VINF_EM_EXECUTE_INSTRUCTION returns.");
377	STAM_REG(pVM, &pVM->vmm.s.StatRZRetIOBlockEmulate, STAMTYPE_COUNTER, "/VMM/RZRet/EmulateIOBlock", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_EMULATE_IO_BLOCK returns.");
378	STAM_REG(pVM, &pVM->vmm.s.StatRZRetPatchEmulate, STAMTYPE_COUNTER, "/VMM/RZRet/PatchEmulate", STAMUNIT_OCCURENCES, "Number of VINF_PATCH_EMULATE_INSTR returns.");
379	STAM_REG(pVM, &pVM->vmm.s.StatRZRetIORead, STAMTYPE_COUNTER, "/VMM/RZRet/IORead", STAMUNIT_OCCURENCES, "Number of VINF_IOM_HC_IOPORT_READ returns.");
380	STAM_REG(pVM, &pVM->vmm.s.StatRZRetIOWrite, STAMTYPE_COUNTER, "/VMM/RZRet/IOWrite", STAMUNIT_OCCURENCES, "Number of VINF_IOM_HC_IOPORT_WRITE returns.");
381	STAM_REG(pVM, &pVM->vmm.s.StatRZRetMMIORead, STAMTYPE_COUNTER, "/VMM/RZRet/MMIORead", STAMUNIT_OCCURENCES, "Number of VINF_IOM_HC_MMIO_READ returns.");
382	STAM_REG(pVM, &pVM->vmm.s.StatRZRetMMIOWrite, STAMTYPE_COUNTER, "/VMM/RZRet/MMIOWrite", STAMUNIT_OCCURENCES, "Number of VINF_IOM_HC_MMIO_WRITE returns.");
383	STAM_REG(pVM, &pVM->vmm.s.StatRZRetMMIOReadWrite, STAMTYPE_COUNTER, "/VMM/RZRet/MMIOReadWrite", STAMUNIT_OCCURENCES, "Number of VINF_IOM_HC_MMIO_READ_WRITE returns.");
384	STAM_REG(pVM, &pVM->vmm.s.StatRZRetMMIOPatchRead, STAMTYPE_COUNTER, "/VMM/RZRet/MMIOPatchRead", STAMUNIT_OCCURENCES, "Number of VINF_IOM_HC_MMIO_PATCH_READ returns.");
385	STAM_REG(pVM, &pVM->vmm.s.StatRZRetMMIOPatchWrite, STAMTYPE_COUNTER, "/VMM/RZRet/MMIOPatchWrite", STAMUNIT_OCCURENCES, "Number of VINF_IOM_HC_MMIO_PATCH_WRITE returns.");
386	STAM_REG(pVM, &pVM->vmm.s.StatRZRetLDTFault, STAMTYPE_COUNTER, "/VMM/RZRet/LDTFault", STAMUNIT_OCCURENCES, "Number of VINF_EM_EXECUTE_INSTRUCTION_GDT_FAULT returns.");
387	STAM_REG(pVM, &pVM->vmm.s.StatRZRetGDTFault, STAMTYPE_COUNTER, "/VMM/RZRet/GDTFault", STAMUNIT_OCCURENCES, "Number of VINF_EM_EXECUTE_INSTRUCTION_LDT_FAULT returns.");
388	STAM_REG(pVM, &pVM->vmm.s.StatRZRetIDTFault, STAMTYPE_COUNTER, "/VMM/RZRet/IDTFault", STAMUNIT_OCCURENCES, "Number of VINF_EM_EXECUTE_INSTRUCTION_IDT_FAULT returns.");
389	STAM_REG(pVM, &pVM->vmm.s.StatRZRetTSSFault, STAMTYPE_COUNTER, "/VMM/RZRet/TSSFault", STAMUNIT_OCCURENCES, "Number of VINF_EM_EXECUTE_INSTRUCTION_TSS_FAULT returns.");
390	STAM_REG(pVM, &pVM->vmm.s.StatRZRetPDFault, STAMTYPE_COUNTER, "/VMM/RZRet/PDFault", STAMUNIT_OCCURENCES, "Number of VINF_EM_EXECUTE_INSTRUCTION_PD_FAULT returns.");
391	STAM_REG(pVM, &pVM->vmm.s.StatRZRetCSAMTask, STAMTYPE_COUNTER, "/VMM/RZRet/CSAMTask", STAMUNIT_OCCURENCES, "Number of VINF_CSAM_PENDING_ACTION returns.");
392	STAM_REG(pVM, &pVM->vmm.s.StatRZRetSyncCR3, STAMTYPE_COUNTER, "/VMM/RZRet/SyncCR", STAMUNIT_OCCURENCES, "Number of VINF_PGM_SYNC_CR3 returns.");
393	STAM_REG(pVM, &pVM->vmm.s.StatRZRetMisc, STAMTYPE_COUNTER, "/VMM/RZRet/Misc", STAMUNIT_OCCURENCES, "Number of misc returns.");
394	STAM_REG(pVM, &pVM->vmm.s.StatRZRetPatchInt3, STAMTYPE_COUNTER, "/VMM/RZRet/PatchInt3", STAMUNIT_OCCURENCES, "Number of VINF_PATM_PATCH_INT3 returns.");
395	STAM_REG(pVM, &pVM->vmm.s.StatRZRetPatchPF, STAMTYPE_COUNTER, "/VMM/RZRet/PatchPF", STAMUNIT_OCCURENCES, "Number of VINF_PATM_PATCH_TRAP_PF returns.");
396	STAM_REG(pVM, &pVM->vmm.s.StatRZRetPatchGP, STAMTYPE_COUNTER, "/VMM/RZRet/PatchGP", STAMUNIT_OCCURENCES, "Number of VINF_PATM_PATCH_TRAP_GP returns.");
397	STAM_REG(pVM, &pVM->vmm.s.StatRZRetPatchIretIRQ, STAMTYPE_COUNTER, "/VMM/RZRet/PatchIret", STAMUNIT_OCCURENCES, "Number of VINF_PATM_PENDING_IRQ_AFTER_IRET returns.");
398	STAM_REG(pVM, &pVM->vmm.s.StatRZRetRescheduleREM, STAMTYPE_COUNTER, "/VMM/RZRet/ScheduleREM", STAMUNIT_OCCURENCES, "Number of VINF_EM_RESCHEDULE_REM returns.");
399	STAM_REG(pVM, &pVM->vmm.s.StatRZRetToR3, STAMTYPE_COUNTER, "/VMM/RZRet/ToR3", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_TO_R3 returns.");
400	STAM_REG(pVM, &pVM->vmm.s.StatRZRetTimerPending, STAMTYPE_COUNTER, "/VMM/RZRet/TimerPending", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_TIMER_PENDING returns.");
401	STAM_REG(pVM, &pVM->vmm.s.StatRZRetInterruptPending, STAMTYPE_COUNTER, "/VMM/RZRet/InterruptPending", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_INTERRUPT_PENDING returns.");
402	STAM_REG(pVM, &pVM->vmm.s.StatRZRetPATMDuplicateFn, STAMTYPE_COUNTER, "/VMM/RZRet/PATMDuplicateFn", STAMUNIT_OCCURENCES, "Number of VINF_PATM_DUPLICATE_FUNCTION returns.");
403	STAM_REG(pVM, &pVM->vmm.s.StatRZRetPGMChangeMode, STAMTYPE_COUNTER, "/VMM/RZRet/PGMChangeMode", STAMUNIT_OCCURENCES, "Number of VINF_PGM_CHANGE_MODE returns.");
404	STAM_REG(pVM, &pVM->vmm.s.StatRZRetPendingRequest, STAMTYPE_COUNTER, "/VMM/RZRet/PendingRequest", STAMUNIT_OCCURENCES, "Number of VINF_EM_PENDING_REQUEST returns.");
405	STAM_REG(pVM, &pVM->vmm.s.StatRZRetPatchTPR, STAMTYPE_COUNTER, "/VMM/RZRet/PatchTPR", STAMUNIT_OCCURENCES, "Number of VINF_EM_HWACCM_PATCH_TPR_INSTR returns.");
406	STAM_REG(pVM, &pVM->vmm.s.StatRZRetCallRing3, STAMTYPE_COUNTER, "/VMM/RZCallR3/Misc", STAMUNIT_OCCURENCES, "Number of Other ring-3 calls.");
407	STAM_REG(pVM, &pVM->vmm.s.StatRZCallPDMLock, STAMTYPE_COUNTER, "/VMM/RZCallR3/PDMLock", STAMUNIT_OCCURENCES, "Number of VMMCALLRING3_PDM_LOCK calls.");
408	STAM_REG(pVM, &pVM->vmm.s.StatRZCallPDMQueueFlush, STAMTYPE_COUNTER, "/VMM/RZCallR3/PDMQueueFlush", STAMUNIT_OCCURENCES, "Number of VMMCALLRING3_PDM_QUEUE_FLUSH calls.");
409	STAM_REG(pVM, &pVM->vmm.s.StatRZCallPGMLock, STAMTYPE_COUNTER, "/VMM/RZCallR3/PGMLock", STAMUNIT_OCCURENCES, "Number of VMMCALLRING3_PGM_LOCK calls.");
410	STAM_REG(pVM, &pVM->vmm.s.StatRZCallPGMPoolGrow, STAMTYPE_COUNTER, "/VMM/RZCallR3/PGMPoolGrow", STAMUNIT_OCCURENCES, "Number of VMMCALLRING3_PGM_POOL_GROW calls.");
411	STAM_REG(pVM, &pVM->vmm.s.StatRZCallPGMMapChunk, STAMTYPE_COUNTER, "/VMM/RZCallR3/PGMMapChunk", STAMUNIT_OCCURENCES, "Number of VMMCALLRING3_PGM_MAP_CHUNK calls.");
412	STAM_REG(pVM, &pVM->vmm.s.StatRZCallPGMAllocHandy, STAMTYPE_COUNTER, "/VMM/RZCallR3/PGMAllocHandy", STAMUNIT_OCCURENCES, "Number of VMMCALLRING3_PGM_ALLOCATE_HANDY_PAGES calls.");
413	STAM_REG(pVM, &pVM->vmm.s.StatRZCallRemReplay, STAMTYPE_COUNTER, "/VMM/RZCallR3/REMReplay", STAMUNIT_OCCURENCES, "Number of VMMCALLRING3_REM_REPLAY_HANDLER_NOTIFICATIONS calls.");
414	STAM_REG(pVM, &pVM->vmm.s.StatRZCallLogFlush, STAMTYPE_COUNTER, "/VMM/RZCallR3/VMMLogFlush", STAMUNIT_OCCURENCES, "Number of VMMCALLRING3_VMM_LOGGER_FLUSH calls.");
415	STAM_REG(pVM, &pVM->vmm.s.StatRZCallVMSetError, STAMTYPE_COUNTER, "/VMM/RZCallR3/VMSetError", STAMUNIT_OCCURENCES, "Number of VMMCALLRING3_VM_SET_ERROR calls.");
416	STAM_REG(pVM, &pVM->vmm.s.StatRZCallVMSetRuntimeError, STAMTYPE_COUNTER, "/VMM/RZCallR3/VMRuntimeError", STAMUNIT_OCCURENCES, "Number of VMMCALLRING3_VM_SET_RUNTIME_ERROR calls.");
417
418	#ifdef VBOX_WITH_STATISTICS
419	for (VMCPUID i = 0; i < pVM->cCpus; i++)
420	{
421	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);
422	STAMR3RegisterF(pVM, &pVM->aCpus[i].vmm.s.CallRing3JmpBufR0.cbUsedAvg, STAMTYPE_U32, STAMVISIBILITY_ALWAYS, STAMUNIT_BYTES, "Average stack usage.", "/VMM/Stack/CPU%u/Avg", i);
423	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);
424	}
425	#endif
426	}
427
428
429	/**
430	* Initializes the per-VCPU VMM.
431	*
432	* @returns VBox status code.
433	* @param pVM The VM to operate on.
434	*/
435	VMMR3DECL(int) VMMR3InitCPU(PVM pVM)
436	{
437	LogFlow(("VMMR3InitCPU\n"));
438	return VINF_SUCCESS;
439	}
440
441
442	/**
443	* Ring-3 init finalizing.
444	*
445	* @returns VBox status code.
446	* @param pVM The VM handle.
447	*/
448	VMMR3DECL(int) VMMR3InitFinalize(PVM pVM)
449	{
450	int rc = VINF_SUCCESS;
451
452	for (VMCPUID idCpu = 0; idCpu < pVM->cCpus; idCpu++)
453	{
454	PVMCPU pVCpu = &pVM->aCpus[idCpu];
455
456	#ifdef VBOX_STRICT_VMM_STACK
457	/*
458	* Two inaccessible pages at each sides of the stack to catch over/under-flows.
459	*/
460	memset(pVCpu->vmm.s.pbEMTStackR3 - PAGE_SIZE, 0xcc, PAGE_SIZE);
461	MMR3HyperSetGuard(pVM, pVCpu->vmm.s.pbEMTStackR3 - PAGE_SIZE, PAGE_SIZE, true /fSet/);
462
463	memset(pVCpu->vmm.s.pbEMTStackR3 + VMM_STACK_SIZE, 0xcc, PAGE_SIZE);
464	MMR3HyperSetGuard(pVM, pVCpu->vmm.s.pbEMTStackR3 + VMM_STACK_SIZE, PAGE_SIZE, true /fSet/);
465	#endif
466
467	/*
468	* Set page attributes to r/w for stack pages.
469	*/
470	rc = PGMMapSetPage(pVM, pVCpu->vmm.s.pbEMTStackRC, VMM_STACK_SIZE, X86_PTE_P \| X86_PTE_A \| X86_PTE_D \| X86_PTE_RW);
471	AssertRC(rc);
472	if (RT_FAILURE(rc))
473	break;
474	}
475	if (RT_SUCCESS(rc))
476	{
477	/*
478	* Create the EMT yield timer.
479	*/
480	rc = TMR3TimerCreateInternal(pVM, TMCLOCK_REAL, vmmR3YieldEMT, NULL, "EMT Yielder", &pVM->vmm.s.pYieldTimer);
481	if (RT_SUCCESS(rc))
482	rc = TMTimerSetMillies(pVM->vmm.s.pYieldTimer, pVM->vmm.s.cYieldEveryMillies);
483	}
484
485	#ifdef VBOX_WITH_NMI
486	/*
487	* Map the host APIC into GC - This is AMD/Intel + Host OS specific!
488	*/
489	if (RT_SUCCESS(rc))
490	rc = PGMMap(pVM, pVM->vmm.s.GCPtrApicBase, 0xfee00000, PAGE_SIZE,
491	X86_PTE_P \| X86_PTE_RW \| X86_PTE_PWT \| X86_PTE_PCD \| X86_PTE_A \| X86_PTE_D);
492	#endif
493	return rc;
494	}
495
496
497	/**
498	* Initializes the R0 VMM.
499	*
500	* @returns VBox status code.
501	* @param pVM The VM to operate on.
502	*/
503	VMMR3DECL(int) VMMR3InitR0(PVM pVM)
504	{
505	int rc;
506	PVMCPU pVCpu = VMMGetCpu(pVM);
507	Assert(pVCpu && pVCpu->idCpu == 0);
508
509	#ifdef LOG_ENABLED
510	/*
511	* Initialize the ring-0 logger if we haven't done so yet.
512	*/
513	if ( pVCpu->vmm.s.pR0LoggerR3
514	&& !pVCpu->vmm.s.pR0LoggerR3->fCreated)
515	{
516	rc = VMMR3UpdateLoggers(pVM);
517	if (RT_FAILURE(rc))
518	return rc;
519	}
520	#endif
521
522	/*
523	* Call Ring-0 entry with init code.
524	*/
525	for (;;)
526	{
527	#ifdef NO_SUPCALLR0VMM
528	//rc = VERR_GENERAL_FAILURE;
529	rc = VINF_SUCCESS;
530	#else
531	rc = SUPR3CallVMMR0Ex(pVM->pVMR0, 0 /idCpu/, VMMR0_DO_VMMR0_INIT, VMMGetSvnRev(), NULL);
532	#endif
533	/*
534	* Flush the logs.
535	*/
536	#ifdef LOG_ENABLED
537	if ( pVCpu->vmm.s.pR0LoggerR3
538	&& pVCpu->vmm.s.pR0LoggerR3->Logger.offScratch > 0)
539	RTLogFlushToLogger(&pVCpu->vmm.s.pR0LoggerR3->Logger, NULL);
540	#endif
541	if (rc != VINF_VMM_CALL_HOST)
542	break;
543	rc = vmmR3ServiceCallRing3Request(pVM, pVCpu);
544	if (RT_FAILURE(rc) \|\| (rc >= VINF_EM_FIRST && rc <= VINF_EM_LAST))
545	break;
546	/* Resume R0 */
547	}
548
549	if (RT_FAILURE(rc) \|\| (rc >= VINF_EM_FIRST && rc <= VINF_EM_LAST))
550	{
551	LogRel(("R0 init failed, rc=%Rra\n", rc));
552	if (RT_SUCCESS(rc))
553	rc = VERR_INTERNAL_ERROR;
554	}
555	return rc;
556	}
557
558
559	/**
560	* Initializes the RC VMM.
561	*
562	* @returns VBox status code.
563	* @param pVM The VM to operate on.
564	*/
565	VMMR3DECL(int) VMMR3InitRC(PVM pVM)
566	{
567	PVMCPU pVCpu = VMMGetCpu(pVM);
568	Assert(pVCpu && pVCpu->idCpu == 0);
569
570	/* In VMX mode, there's no need to init RC. */
571	if (pVM->vmm.s.fSwitcherDisabled)
572	return VINF_SUCCESS;
573
574	AssertReturn(pVM->cCpus == 1, VERR_RAW_MODE_INVALID_SMP);
575
576	/*
577	* Call VMMGCInit():
578	* -# resolve the address.
579	* -# setup stackframe and EIP to use the trampoline.
580	* -# do a generic hypervisor call.
581	*/
582	RTRCPTR RCPtrEP;
583	int rc = PDMR3LdrGetSymbolRC(pVM, VMMGC_MAIN_MODULE_NAME, "VMMGCEntry", &RCPtrEP);
584	if (RT_SUCCESS(rc))
585	{
586	CPUMHyperSetCtxCore(pVCpu, NULL);
587	CPUMSetHyperESP(pVCpu, pVCpu->vmm.s.pbEMTStackBottomRC); /* Clear the stack. */
588	uint64_t u64TS = RTTimeProgramStartNanoTS();
589	CPUMPushHyper(pVCpu, (uint32_t)(u64TS >> 32)); /* Param 3: The program startup TS - Hi. */
590	CPUMPushHyper(pVCpu, (uint32_t)u64TS); /* Param 3: The program startup TS - Lo. */
591	CPUMPushHyper(pVCpu, VMMGetSvnRev()); /* Param 2: Version argument. */
592	CPUMPushHyper(pVCpu, VMMGC_DO_VMMGC_INIT); /* Param 1: Operation. */
593	CPUMPushHyper(pVCpu, pVM->pVMRC); /* Param 0: pVM */
594	CPUMPushHyper(pVCpu, 5 * sizeof(RTRCPTR)); /* trampoline param: stacksize. */
595	CPUMPushHyper(pVCpu, RCPtrEP); /* Call EIP. */
596	CPUMSetHyperEIP(pVCpu, pVM->vmm.s.pfnCallTrampolineRC);
597	Assert(CPUMGetHyperCR3(pVCpu) && CPUMGetHyperCR3(pVCpu) == PGMGetHyperCR3(pVCpu));
598
599	for (;;)
600	{
601	#ifdef NO_SUPCALLR0VMM
602	//rc = VERR_GENERAL_FAILURE;
603	rc = VINF_SUCCESS;
604	#else
605	rc = SUPR3CallVMMR0(pVM->pVMR0, 0 /* VCPU 0 */, VMMR0_DO_CALL_HYPERVISOR, NULL);
606	#endif
607	#ifdef LOG_ENABLED
608	PRTLOGGERRC pLogger = pVM->vmm.s.pRCLoggerR3;
609	if ( pLogger
610	&& pLogger->offScratch > 0)
611	RTLogFlushRC(NULL, pLogger);
612	#endif
613	#ifdef VBOX_WITH_RC_RELEASE_LOGGING
614	PRTLOGGERRC pRelLogger = pVM->vmm.s.pRCRelLoggerR3;
615	if (RT_UNLIKELY(pRelLogger && pRelLogger->offScratch > 0))
616	RTLogFlushRC(RTLogRelDefaultInstance(), pRelLogger);
617	#endif
618	if (rc != VINF_VMM_CALL_HOST)
619	break;
620	rc = vmmR3ServiceCallRing3Request(pVM, pVCpu);
621	if (RT_FAILURE(rc) \|\| (rc >= VINF_EM_FIRST && rc <= VINF_EM_LAST))
622	break;
623	}
624
625	if (RT_FAILURE(rc) \|\| (rc >= VINF_EM_FIRST && rc <= VINF_EM_LAST))
626	{
627	VMMR3FatalDump(pVM, pVCpu, rc);
628	if (rc >= VINF_EM_FIRST && rc <= VINF_EM_LAST)
629	rc = VERR_INTERNAL_ERROR;
630	}
631	AssertRC(rc);
632	}
633	return rc;
634	}
635
636
637	/**
638	* Terminate the VMM bits.
639	*
640	* @returns VINF_SUCCESS.
641	* @param pVM The VM handle.
642	*/
643	VMMR3DECL(int) VMMR3Term(PVM pVM)
644	{
645	PVMCPU pVCpu = VMMGetCpu(pVM);
646	Assert(pVCpu && pVCpu->idCpu == 0);
647
648	/*
649	* Call Ring-0 entry with termination code.
650	*/
651	int rc;
652	for (;;)
653	{
654	#ifdef NO_SUPCALLR0VMM
655	//rc = VERR_GENERAL_FAILURE;
656	rc = VINF_SUCCESS;
657	#else
658	rc = SUPR3CallVMMR0Ex(pVM->pVMR0, 0 /idCpu/, VMMR0_DO_VMMR0_TERM, 0, NULL);
659	#endif
660	/*
661	* Flush the logs.
662	*/
663	#ifdef LOG_ENABLED
664	if ( pVCpu->vmm.s.pR0LoggerR3
665	&& pVCpu->vmm.s.pR0LoggerR3->Logger.offScratch > 0)
666	RTLogFlushToLogger(&pVCpu->vmm.s.pR0LoggerR3->Logger, NULL);
667	#endif
668	if (rc != VINF_VMM_CALL_HOST)
669	break;
670	rc = vmmR3ServiceCallRing3Request(pVM, pVCpu);
671	if (RT_FAILURE(rc) \|\| (rc >= VINF_EM_FIRST && rc <= VINF_EM_LAST))
672	break;
673	/* Resume R0 */
674	}
675	if (RT_FAILURE(rc) \|\| (rc >= VINF_EM_FIRST && rc <= VINF_EM_LAST))
676	{
677	LogRel(("VMMR3Term: R0 term failed, rc=%Rra. (warning)\n", rc));
678	if (RT_SUCCESS(rc))
679	rc = VERR_INTERNAL_ERROR;
680	}
681
682	RTCritSectDelete(&pVM->vmm.s.CritSectSync);
683	for (VMCPUID i = 0; i < pVM->cCpus; i++)
684	{
685	RTSemEventDestroy(pVM->vmm.s.pahEvtRendezvousEnterOrdered[i]);
686	pVM->vmm.s.pahEvtRendezvousEnterOrdered[i] = NIL_RTSEMEVENT;
687	}
688	RTSemEventDestroy(pVM->vmm.s.hEvtRendezvousEnterOneByOne);
689	pVM->vmm.s.hEvtRendezvousEnterOneByOne = NIL_RTSEMEVENT;
690	RTSemEventMultiDestroy(pVM->vmm.s.hEvtMulRendezvousEnterAllAtOnce);
691	pVM->vmm.s.hEvtMulRendezvousEnterAllAtOnce = NIL_RTSEMEVENTMULTI;
692	RTSemEventMultiDestroy(pVM->vmm.s.hEvtMulRendezvousDone);
693	pVM->vmm.s.hEvtMulRendezvousDone = NIL_RTSEMEVENTMULTI;
694	RTSemEventDestroy(pVM->vmm.s.hEvtRendezvousDoneCaller);
695	pVM->vmm.s.hEvtRendezvousDoneCaller = NIL_RTSEMEVENT;
696
697	#ifdef VBOX_STRICT_VMM_STACK
698	/*
699	* Make the two stack guard pages present again.
700	*/
701	for (VMCPUID i = 0; i < pVM->cCpus; i++)
702	{
703	MMR3HyperSetGuard(pVM, pVM->aCpus[i].vmm.s.pbEMTStackR3 - PAGE_SIZE, PAGE_SIZE, false /fSet/);
704	MMR3HyperSetGuard(pVM, pVM->aCpus[i].vmm.s.pbEMTStackR3 + VMM_STACK_SIZE, PAGE_SIZE, false /fSet/);
705	}
706	#endif
707	return rc;
708	}
709
710
711	/**
712	* Terminates the per-VCPU VMM.
713	*
714	* Termination means cleaning up and freeing all resources,
715	* the VM it self is at this point powered off or suspended.
716	*
717	* @returns VBox status code.
718	* @param pVM The VM to operate on.
719	*/
720	VMMR3DECL(int) VMMR3TermCPU(PVM pVM)
721	{
722	return VINF_SUCCESS;
723	}
724
725
726	/**
727	* Applies relocations to data and code managed by this
728	* component. This function will be called at init and
729	* whenever the VMM need to relocate it self inside the GC.
730	*
731	* The VMM will need to apply relocations to the core code.
732	*
733	* @param pVM The VM handle.
734	* @param offDelta The relocation delta.
735	*/
736	VMMR3DECL(void) VMMR3Relocate(PVM pVM, RTGCINTPTR offDelta)
737	{
738	LogFlow(("VMMR3Relocate: offDelta=%RGv\n", offDelta));
739
740	/*
741	* Recalc the RC address.
742	*/
743	pVM->vmm.s.pvCoreCodeRC = MMHyperR3ToRC(pVM, pVM->vmm.s.pvCoreCodeR3);
744
745	/*
746	* The stack.
747	*/
748	for (VMCPUID i = 0; i < pVM->cCpus; i++)
749	{
750	PVMCPU pVCpu = &pVM->aCpus[i];
751
752	CPUMSetHyperESP(pVCpu, CPUMGetHyperESP(pVCpu) + offDelta);
753
754	pVCpu->vmm.s.pbEMTStackRC = MMHyperR3ToRC(pVM, pVCpu->vmm.s.pbEMTStackR3);
755	pVCpu->vmm.s.pbEMTStackBottomRC = pVCpu->vmm.s.pbEMTStackRC + VMM_STACK_SIZE;
756	}
757
758	/*
759	* All the switchers.
760	*/
761	vmmR3SwitcherRelocate(pVM, offDelta);
762
763	/*
764	* Get other RC entry points.
765	*/
766	int rc = PDMR3LdrGetSymbolRC(pVM, VMMGC_MAIN_MODULE_NAME, "CPUMGCResumeGuest", &pVM->vmm.s.pfnCPUMRCResumeGuest);
767	AssertReleaseMsgRC(rc, ("CPUMGCResumeGuest not found! rc=%Rra\n", rc));
768
769	rc = PDMR3LdrGetSymbolRC(pVM, VMMGC_MAIN_MODULE_NAME, "CPUMGCResumeGuestV86", &pVM->vmm.s.pfnCPUMRCResumeGuestV86);
770	AssertReleaseMsgRC(rc, ("CPUMGCResumeGuestV86 not found! rc=%Rra\n", rc));
771
772	/*
773	* Update the logger.
774	*/
775	VMMR3UpdateLoggers(pVM);
776	}
777
778
779	/**
780	* Updates the settings for the RC and R0 loggers.
781	*
782	* @returns VBox status code.
783	* @param pVM The VM handle.
784	*/
785	VMMR3DECL(int) VMMR3UpdateLoggers(PVM pVM)
786	{
787	/*
788	* Simply clone the logger instance (for RC).
789	*/
790	int rc = VINF_SUCCESS;
791	RTRCPTR RCPtrLoggerFlush = 0;
792
793	if (pVM->vmm.s.pRCLoggerR3
794	#ifdef VBOX_WITH_RC_RELEASE_LOGGING
795	\|\| pVM->vmm.s.pRCRelLoggerR3
796	#endif
797	)
798	{
799	rc = PDMR3LdrGetSymbolRC(pVM, VMMGC_MAIN_MODULE_NAME, "vmmGCLoggerFlush", &RCPtrLoggerFlush);
800	AssertReleaseMsgRC(rc, ("vmmGCLoggerFlush not found! rc=%Rra\n", rc));
801	}
802
803	if (pVM->vmm.s.pRCLoggerR3)
804	{
805	RTRCPTR RCPtrLoggerWrapper = 0;
806	rc = PDMR3LdrGetSymbolRC(pVM, VMMGC_MAIN_MODULE_NAME, "vmmGCLoggerWrapper", &RCPtrLoggerWrapper);
807	AssertReleaseMsgRC(rc, ("vmmGCLoggerWrapper not found! rc=%Rra\n", rc));
808
809	pVM->vmm.s.pRCLoggerRC = MMHyperR3ToRC(pVM, pVM->vmm.s.pRCLoggerR3);
810	rc = RTLogCloneRC(NULL /* default */, pVM->vmm.s.pRCLoggerR3, pVM->vmm.s.cbRCLogger,
811	RCPtrLoggerWrapper, RCPtrLoggerFlush, RTLOGFLAGS_BUFFERED);
812	AssertReleaseMsgRC(rc, ("RTLogCloneRC failed! rc=%Rra\n", rc));
813	}
814
815	#ifdef VBOX_WITH_RC_RELEASE_LOGGING
816	if (pVM->vmm.s.pRCRelLoggerR3)
817	{
818	RTRCPTR RCPtrLoggerWrapper = 0;
819	rc = PDMR3LdrGetSymbolRC(pVM, VMMGC_MAIN_MODULE_NAME, "vmmGCRelLoggerWrapper", &RCPtrLoggerWrapper);
820	AssertReleaseMsgRC(rc, ("vmmGCRelLoggerWrapper not found! rc=%Rra\n", rc));
821
822	pVM->vmm.s.pRCRelLoggerRC = MMHyperR3ToRC(pVM, pVM->vmm.s.pRCRelLoggerR3);
823	rc = RTLogCloneRC(RTLogRelDefaultInstance(), pVM->vmm.s.pRCRelLoggerR3, pVM->vmm.s.cbRCRelLogger,
824	RCPtrLoggerWrapper, RCPtrLoggerFlush, RTLOGFLAGS_BUFFERED);
825	AssertReleaseMsgRC(rc, ("RTLogCloneRC failed! rc=%Rra\n", rc));
826	}
827	#endif /* VBOX_WITH_RC_RELEASE_LOGGING */
828
829	#ifdef LOG_ENABLED
830	/*
831	* For the ring-0 EMT logger, we use a per-thread logger instance
832	* in ring-0. Only initialize it once.
833	*/
834	for (VMCPUID i = 0; i < pVM->cCpus; i++)
835	{
836	PVMCPU pVCpu = &pVM->aCpus[i];
837	PVMMR0LOGGER pR0LoggerR3 = pVCpu->vmm.s.pR0LoggerR3;
838	if (pR0LoggerR3)
839	{
840	if (!pR0LoggerR3->fCreated)
841	{
842	RTR0PTR pfnLoggerWrapper = NIL_RTR0PTR;
843	rc = PDMR3LdrGetSymbolR0(pVM, VMMR0_MAIN_MODULE_NAME, "vmmR0LoggerWrapper", &pfnLoggerWrapper);
844	AssertReleaseMsgRCReturn(rc, ("vmmR0LoggerWrapper not found! rc=%Rra\n", rc), rc);
845
846	RTR0PTR pfnLoggerFlush = NIL_RTR0PTR;
847	rc = PDMR3LdrGetSymbolR0(pVM, VMMR0_MAIN_MODULE_NAME, "vmmR0LoggerFlush", &pfnLoggerFlush);
848	AssertReleaseMsgRCReturn(rc, ("vmmR0LoggerFlush not found! rc=%Rra\n", rc), rc);
849
850	rc = RTLogCreateForR0(&pR0LoggerR3->Logger, pR0LoggerR3->cbLogger,
851	(PFNRTLOGGER )&pfnLoggerWrapper, (PFNRTLOGFLUSH )&pfnLoggerFlush,
852	RTLOGFLAGS_BUFFERED, RTLOGDEST_DUMMY);
853	AssertReleaseMsgRCReturn(rc, ("RTLogCreateForR0 failed! rc=%Rra\n", rc), rc);
854
855	RTR0PTR pfnLoggerPrefix = NIL_RTR0PTR;
856	rc = PDMR3LdrGetSymbolR0(pVM, VMMR0_MAIN_MODULE_NAME, "vmmR0LoggerPrefix", &pfnLoggerPrefix);
857	AssertReleaseMsgRCReturn(rc, ("vmmR0LoggerPrefix not found! rc=%Rra\n", rc), rc);
858	rc = RTLogSetCustomPrefixCallback(&pR0LoggerR3->Logger, (PFNRTLOGPREFIX )&pfnLoggerPrefix, NULL);
859	AssertReleaseMsgRCReturn(rc, ("RTLogSetCustomPrefixCallback failed! rc=%Rra\n", rc), rc);
860
861	pR0LoggerR3->idCpu = i;
862	pR0LoggerR3->fCreated = true;
863	pR0LoggerR3->fFlushingDisabled = false;
864
865	}
866
867	rc = RTLogCopyGroupsAndFlags(&pR0LoggerR3->Logger, NULL /* default */, pVM->vmm.s.pRCLoggerR3->fFlags, RTLOGFLAGS_BUFFERED);
868	AssertRC(rc);
869	}
870	}
871	#endif
872	return rc;
873	}
874
875
876	/**
877	* Gets the pointer to a buffer containing the R0/RC AssertMsg1 output.
878	*
879	* @returns Pointer to the buffer.
880	* @param pVM The VM handle.
881	*/
882	VMMR3DECL(const char *) VMMR3GetRZAssertMsg1(PVM pVM)
883	{
884	if (HWACCMIsEnabled(pVM))
885	return pVM->vmm.s.szRing0AssertMsg1;
886
887	RTRCPTR RCPtr;
888	int rc = PDMR3LdrGetSymbolRC(pVM, NULL, "g_szRTAssertMsg1", &RCPtr);
889	if (RT_SUCCESS(rc))
890	return (const char *)MMHyperRCToR3(pVM, RCPtr);
891
892	return NULL;
893	}
894
895
896	/**
897	* Gets the pointer to a buffer containing the R0/RC AssertMsg2 output.
898	*
899	* @returns Pointer to the buffer.
900	* @param pVM The VM handle.
901	*/
902	VMMR3DECL(const char *) VMMR3GetRZAssertMsg2(PVM pVM)
903	{
904	if (HWACCMIsEnabled(pVM))
905	return pVM->vmm.s.szRing0AssertMsg2;
906
907	RTRCPTR RCPtr;
908	int rc = PDMR3LdrGetSymbolRC(pVM, NULL, "g_szRTAssertMsg2", &RCPtr);
909	if (RT_SUCCESS(rc))
910	return (const char *)MMHyperRCToR3(pVM, RCPtr);
911
912	return NULL;
913	}
914
915
916	/**
917	* Execute state save operation.
918	*
919	* @returns VBox status code.
920	* @param pVM VM Handle.
921	* @param pSSM SSM operation handle.
922	*/
923	static DECLCALLBACK(int) vmmR3Save(PVM pVM, PSSMHANDLE pSSM)
924	{
925	LogFlow(("vmmR3Save:\n"));
926
927	/*
928	* Save the started/stopped state of all CPUs except 0 as it will always
929	* be running. This avoids breaking the saved state version. :-)
930	*/
931	for (VMCPUID i = 1; i < pVM->cCpus; i++)
932	SSMR3PutBool(pSSM, VMCPUSTATE_IS_STARTED(VMCPU_GET_STATE(&pVM->aCpus[i])));
933
934	return SSMR3PutU32(pSSM, UINT32_MAX); /* terminator */
935	}
936
937
938	/**
939	* Execute state load operation.
940	*
941	* @returns VBox status code.
942	* @param pVM VM Handle.
943	* @param pSSM SSM operation handle.
944	* @param uVersion Data layout version.
945	* @param uPass The data pass.
946	*/
947	static DECLCALLBACK(int) vmmR3Load(PVM pVM, PSSMHANDLE pSSM, uint32_t uVersion, uint32_t uPass)
948	{
949	LogFlow(("vmmR3Load:\n"));
950	Assert(uPass == SSM_PASS_FINAL); NOREF(uPass);
951
952	/*
953	* Validate version.
954	*/
955	if ( uVersion != VMM_SAVED_STATE_VERSION
956	&& uVersion != VMM_SAVED_STATE_VERSION_3_0)
957	{
958	AssertMsgFailed(("vmmR3Load: Invalid version uVersion=%u!\n", uVersion));
959	return VERR_SSM_UNSUPPORTED_DATA_UNIT_VERSION;
960	}
961
962	if (uVersion <= VMM_SAVED_STATE_VERSION_3_0)
963	{
964	/* Ignore the stack bottom, stack pointer and stack bits. */
965	RTRCPTR RCPtrIgnored;
966	SSMR3GetRCPtr(pSSM, &RCPtrIgnored);
967	SSMR3GetRCPtr(pSSM, &RCPtrIgnored);
968	SSMR3Skip(pSSM, VMM_STACK_SIZE);
969	}
970
971	/*
972	* Restore the VMCPU states. VCPU 0 is always started.
973	*/
974	VMCPU_SET_STATE(&pVM->aCpus[0], VMCPUSTATE_STARTED);
975	for (VMCPUID i = 1; i < pVM->cCpus; i++)
976	{
977	bool fStarted;
978	int rc = SSMR3GetBool(pSSM, &fStarted);
979	if (RT_FAILURE(rc))
980	return rc;
981	VMCPU_SET_STATE(&pVM->aCpus[i], fStarted ? VMCPUSTATE_STARTED : VMCPUSTATE_STOPPED);
982	}
983
984	/* terminator */
985	uint32_t u32;
986	int rc = SSMR3GetU32(pSSM, &u32);
987	if (RT_FAILURE(rc))
988	return rc;
989	if (u32 != UINT32_MAX)
990	{
991	AssertMsgFailed(("u32=%#x\n", u32));
992	return VERR_SSM_DATA_UNIT_FORMAT_CHANGED;
993	}
994	return VINF_SUCCESS;
995	}
996
997
998	/**
999	* Resolve a builtin RC symbol.
1000	*
1001	* Called by PDM when loading or relocating RC modules.
1002	*
1003	* @returns VBox status
1004	* @param pVM VM Handle.
1005	* @param pszSymbol Symbol to resolv
1006	* @param pRCPtrValue Where to store the symbol value.
1007	*
1008	* @remark This has to work before VMMR3Relocate() is called.
1009	*/
1010	VMMR3DECL(int) VMMR3GetImportRC(PVM pVM, const char *pszSymbol, PRTRCPTR pRCPtrValue)
1011	{
1012	if (!strcmp(pszSymbol, "g_Logger"))
1013	{
1014	if (pVM->vmm.s.pRCLoggerR3)
1015	pVM->vmm.s.pRCLoggerRC = MMHyperR3ToRC(pVM, pVM->vmm.s.pRCLoggerR3);
1016	*pRCPtrValue = pVM->vmm.s.pRCLoggerRC;
1017	}
1018	else if (!strcmp(pszSymbol, "g_RelLogger"))
1019	{
1020	#ifdef VBOX_WITH_RC_RELEASE_LOGGING
1021	if (pVM->vmm.s.pRCRelLoggerR3)
1022	pVM->vmm.s.pRCRelLoggerRC = MMHyperR3ToRC(pVM, pVM->vmm.s.pRCRelLoggerR3);
1023	*pRCPtrValue = pVM->vmm.s.pRCRelLoggerRC;
1024	#else
1025	*pRCPtrValue = NIL_RTRCPTR;
1026	#endif
1027	}
1028	else
1029	return VERR_SYMBOL_NOT_FOUND;
1030	return VINF_SUCCESS;
1031	}
1032
1033
1034	/**
1035	* Suspends the CPU yielder.
1036	*
1037	* @param pVM The VM handle.
1038	*/
1039	VMMR3DECL(void) VMMR3YieldSuspend(PVM pVM)
1040	{
1041	VMCPU_ASSERT_EMT(&pVM->aCpus[0]);
1042	if (!pVM->vmm.s.cYieldResumeMillies)
1043	{
1044	uint64_t u64Now = TMTimerGet(pVM->vmm.s.pYieldTimer);
1045	uint64_t u64Expire = TMTimerGetExpire(pVM->vmm.s.pYieldTimer);
1046	if (u64Now >= u64Expire \|\| u64Expire == ~(uint64_t)0)
1047	pVM->vmm.s.cYieldResumeMillies = pVM->vmm.s.cYieldEveryMillies;
1048	else
1049	pVM->vmm.s.cYieldResumeMillies = TMTimerToMilli(pVM->vmm.s.pYieldTimer, u64Expire - u64Now);
1050	TMTimerStop(pVM->vmm.s.pYieldTimer);
1051	}
1052	pVM->vmm.s.u64LastYield = RTTimeNanoTS();
1053	}
1054
1055
1056	/**
1057	* Stops the CPU yielder.
1058	*
1059	* @param pVM The VM handle.
1060	*/
1061	VMMR3DECL(void) VMMR3YieldStop(PVM pVM)
1062	{
1063	if (!pVM->vmm.s.cYieldResumeMillies)
1064	TMTimerStop(pVM->vmm.s.pYieldTimer);
1065	pVM->vmm.s.cYieldResumeMillies = pVM->vmm.s.cYieldEveryMillies;
1066	pVM->vmm.s.u64LastYield = RTTimeNanoTS();
1067	}
1068
1069
1070	/**
1071	* Resumes the CPU yielder when it has been a suspended or stopped.
1072	*
1073	* @param pVM The VM handle.
1074	*/
1075	VMMR3DECL(void) VMMR3YieldResume(PVM pVM)
1076	{
1077	if (pVM->vmm.s.cYieldResumeMillies)
1078	{
1079	TMTimerSetMillies(pVM->vmm.s.pYieldTimer, pVM->vmm.s.cYieldResumeMillies);
1080	pVM->vmm.s.cYieldResumeMillies = 0;
1081	}
1082	}
1083
1084
1085	/**
1086	* Internal timer callback function.
1087	*
1088	* @param pVM The VM.
1089	* @param pTimer The timer handle.
1090	* @param pvUser User argument specified upon timer creation.
1091	*/
1092	static DECLCALLBACK(void) vmmR3YieldEMT(PVM pVM, PTMTIMER pTimer, void *pvUser)
1093	{
1094	/*
1095	* This really needs some careful tuning. While we shouldn't be too greedy since
1096	* that'll cause the rest of the system to stop up, we shouldn't be too nice either
1097	* because that'll cause us to stop up.
1098	*
1099	* The current logic is to use the default interval when there is no lag worth
1100	* mentioning, but when we start accumulating lag we don't bother yielding at all.
1101	*
1102	* (This depends on the TMCLOCK_VIRTUAL_SYNC to be scheduled before TMCLOCK_REAL
1103	* so the lag is up to date.)
1104	*/
1105	const uint64_t u64Lag = TMVirtualSyncGetLag(pVM);
1106	if ( u64Lag < 50000000 /* 50ms */
1107	\|\| ( u64Lag < 1000000000 /* 1s */
1108	&& RTTimeNanoTS() - pVM->vmm.s.u64LastYield < 500000000 /* 500 ms */)
1109	)
1110	{
1111	uint64_t u64Elapsed = RTTimeNanoTS();
1112	pVM->vmm.s.u64LastYield = u64Elapsed;
1113
1114	RTThreadYield();
1115
1116	#ifdef LOG_ENABLED
1117	u64Elapsed = RTTimeNanoTS() - u64Elapsed;
1118	Log(("vmmR3YieldEMT: %RI64 ns\n", u64Elapsed));
1119	#endif
1120	}
1121	TMTimerSetMillies(pTimer, pVM->vmm.s.cYieldEveryMillies);
1122	}
1123
1124
1125	/**
1126	* Executes guest code in the raw-mode context.
1127	*
1128	* @param pVM VM handle.
1129	* @param pVCpu The VMCPU to operate on.
1130	*/
1131	VMMR3DECL(int) VMMR3RawRunGC(PVM pVM, PVMCPU pVCpu)
1132	{
1133	Log2(("VMMR3RawRunGC: (cs:eip=%04x:%08x)\n", CPUMGetGuestCS(pVCpu), CPUMGetGuestEIP(pVCpu)));
1134
1135	AssertReturn(pVM->cCpus == 1, VERR_RAW_MODE_INVALID_SMP);
1136
1137	/*
1138	* Set the EIP and ESP.
1139	*/
1140	CPUMSetHyperEIP(pVCpu, CPUMGetGuestEFlags(pVCpu) & X86_EFL_VM
1141	? pVM->vmm.s.pfnCPUMRCResumeGuestV86
1142	: pVM->vmm.s.pfnCPUMRCResumeGuest);
1143	CPUMSetHyperESP(pVCpu, pVCpu->vmm.s.pbEMTStackBottomRC);
1144
1145	/*
1146	* We hide log flushes (outer) and hypervisor interrupts (inner).
1147	*/
1148	for (;;)
1149	{
1150	#ifdef VBOX_STRICT
1151	if (RT_UNLIKELY(!CPUMGetHyperCR3(pVCpu) \|\| CPUMGetHyperCR3(pVCpu) != PGMGetHyperCR3(pVCpu)))
1152	EMR3FatalError(pVCpu, VERR_VMM_HYPER_CR3_MISMATCH);
1153	PGMMapCheck(pVM);
1154	#endif
1155	int rc;
1156	do
1157	{
1158	#ifdef NO_SUPCALLR0VMM
1159	rc = VERR_GENERAL_FAILURE;
1160	#else
1161	rc = SUPR3CallVMMR0Fast(pVM->pVMR0, VMMR0_DO_RAW_RUN, 0);
1162	if (RT_LIKELY(rc == VINF_SUCCESS))
1163	rc = pVCpu->vmm.s.iLastGZRc;
1164	#endif
1165	} while (rc == VINF_EM_RAW_INTERRUPT_HYPER);
1166
1167	/*
1168	* Flush the logs.
1169	*/
1170	#ifdef LOG_ENABLED
1171	PRTLOGGERRC pLogger = pVM->vmm.s.pRCLoggerR3;
1172	if ( pLogger
1173	&& pLogger->offScratch > 0)
1174	RTLogFlushRC(NULL, pLogger);
1175	#endif
1176	#ifdef VBOX_WITH_RC_RELEASE_LOGGING
1177	PRTLOGGERRC pRelLogger = pVM->vmm.s.pRCRelLoggerR3;
1178	if (RT_UNLIKELY(pRelLogger && pRelLogger->offScratch > 0))
1179	RTLogFlushRC(RTLogRelDefaultInstance(), pRelLogger);
1180	#endif
1181	if (rc != VINF_VMM_CALL_HOST)
1182	{
1183	Log2(("VMMR3RawRunGC: returns %Rrc (cs:eip=%04x:%08x)\n", rc, CPUMGetGuestCS(pVCpu), CPUMGetGuestEIP(pVCpu)));
1184	return rc;
1185	}
1186	rc = vmmR3ServiceCallRing3Request(pVM, pVCpu);
1187	if (RT_FAILURE(rc))
1188	return rc;
1189	/* Resume GC */
1190	}
1191	}
1192
1193
1194	/**
1195	* Executes guest code (Intel VT-x and AMD-V).
1196	*
1197	* @param pVM VM handle.
1198	* @param pVCpu The VMCPU to operate on.
1199	*/
1200	VMMR3DECL(int) VMMR3HwAccRunGC(PVM pVM, PVMCPU pVCpu)
1201	{
1202	Log2(("VMMR3HwAccRunGC: (cs:eip=%04x:%08x)\n", CPUMGetGuestCS(pVCpu), CPUMGetGuestEIP(pVCpu)));
1203
1204	for (;;)
1205	{
1206	int rc;
1207	do
1208	{
1209	#ifdef NO_SUPCALLR0VMM
1210	rc = VERR_GENERAL_FAILURE;
1211	#else
1212	rc = SUPR3CallVMMR0Fast(pVM->pVMR0, VMMR0_DO_HWACC_RUN, pVCpu->idCpu);
1213	if (RT_LIKELY(rc == VINF_SUCCESS))
1214	rc = pVCpu->vmm.s.iLastGZRc;
1215	#endif
1216	} while (rc == VINF_EM_RAW_INTERRUPT_HYPER);
1217
1218	#ifdef LOG_ENABLED
1219	/*
1220	* Flush the log
1221	*/
1222	PVMMR0LOGGER pR0LoggerR3 = pVCpu->vmm.s.pR0LoggerR3;
1223	if ( pR0LoggerR3
1224	&& pR0LoggerR3->Logger.offScratch > 0)
1225	RTLogFlushToLogger(&pR0LoggerR3->Logger, NULL);
1226	#endif /* !LOG_ENABLED */
1227	if (rc != VINF_VMM_CALL_HOST)
1228	{
1229	Log2(("VMMR3HwAccRunGC: returns %Rrc (cs:eip=%04x:%08x)\n", rc, CPUMGetGuestCS(pVCpu), CPUMGetGuestEIP(pVCpu)));
1230	return rc;
1231	}
1232	rc = vmmR3ServiceCallRing3Request(pVM, pVCpu);
1233	if (RT_FAILURE(rc))
1234	return rc;
1235	/* Resume R0 */
1236	}
1237	}
1238
1239	/**
1240	* VCPU worker for VMMSendSipi.
1241	*
1242	* @param pVM The VM to operate on.
1243	* @param idCpu Virtual CPU to perform SIPI on
1244	* @param uVector SIPI vector
1245	*/
1246	DECLCALLBACK(int) vmmR3SendSipi(PVM pVM, VMCPUID idCpu, uint32_t uVector)
1247	{
1248	PVMCPU pVCpu = VMMGetCpuById(pVM, idCpu);
1249	VMCPU_ASSERT_EMT(pVCpu);
1250
1251	/** @todo what are we supposed to do if the processor is already running? */
1252	if (EMGetState(pVCpu) != EMSTATE_WAIT_SIPI)
1253	return VERR_ACCESS_DENIED;
1254
1255
1256	PCPUMCTX pCtx = CPUMQueryGuestCtxPtr(pVCpu);
1257
1258	pCtx->cs = uVector << 8;
1259	pCtx->csHid.u64Base = uVector << 12;
1260	pCtx->csHid.u32Limit = 0x0000ffff;
1261	pCtx->rip = 0;
1262
1263	Log(("vmmR3SendSipi for VCPU %d with vector %x\n", uVector));
1264
1265	# if 1 /* If we keep the EMSTATE_WAIT_SIPI method, then move this to EM.cpp. */
1266	EMSetState(pVCpu, EMSTATE_HALTED);
1267	return VINF_EM_RESCHEDULE;
1268	# else /* And if we go the VMCPU::enmState way it can stay here. */
1269	VMCPU_ASSERT_STATE(pVCpu, VMCPUSTATE_STOPPED);
1270	VMCPU_SET_STATE(pVCpu, VMCPUSTATE_STARTED);
1271	return VINF_SUCCESS;
1272	# endif
1273	}
1274
1275	DECLCALLBACK(int) vmmR3SendInitIpi(PVM pVM, VMCPUID idCpu)
1276	{
1277	PVMCPU pVCpu = VMMGetCpuById(pVM, idCpu);
1278	VMCPU_ASSERT_EMT(pVCpu);
1279
1280	Log(("vmmR3SendInitIpi for VCPU %d\n", idCpu));
1281	CPUMR3ResetCpu(pVCpu);
1282	return VINF_EM_WAIT_SIPI;
1283	}
1284
1285	/**
1286	* Sends SIPI to the virtual CPU by setting CS:EIP into vector-dependent state
1287	* and unhalting processor
1288	*
1289	* @param pVM The VM to operate on.
1290	* @param idCpu Virtual CPU to perform SIPI on
1291	* @param uVector SIPI vector
1292	*/
1293	VMMR3DECL(void) VMMR3SendSipi(PVM pVM, VMCPUID idCpu, uint32_t uVector)
1294	{
1295	AssertReturnVoid(idCpu < pVM->cCpus);
1296
1297	int rc = VMR3ReqCallNoWaitU(pVM->pUVM, idCpu, (PFNRT)vmmR3SendSipi, 3, pVM, idCpu, uVector);
1298	AssertRC(rc);
1299	}
1300
1301	/**
1302	* Sends init IPI to the virtual CPU.
1303	*
1304	* @param pVM The VM to operate on.
1305	* @param idCpu Virtual CPU to perform int IPI on
1306	*/
1307	VMMR3DECL(void) VMMR3SendInitIpi(PVM pVM, VMCPUID idCpu)
1308	{
1309	AssertReturnVoid(idCpu < pVM->cCpus);
1310
1311	int rc = VMR3ReqCallNoWaitU(pVM->pUVM, idCpu, (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 = VMR3ReqCallNoWaitU(pVM->pUVM, idCpu, (PFNRT)vmmR3SyncVCpu, 1, pVM);
1390	AssertRC(rc);
1391	}
1392	}
1393	/* Wait until all other VCPUs are waiting for us. */
1394	while (RTCritSectGetWaiters(&pVM->vmm.s.CritSectSync) != (int32_t)(pVM->cCpus - 1))
1395	RTThreadSleep(1);
1396
1397	rc = pfnHandler(pVM, pvUser);
1398	RTCritSectLeave(&pVM->vmm.s.CritSectSync);
1399	return rc;
1400	}
1401
1402
1403	/**
1404	* Count returns and have the last non-caller EMT wake up the caller.
1405	*
1406	* @returns VBox strict informational status code for EM scheduling. No failures
1407	* will be returned here, those are for the caller only.
1408	*
1409	* @param pVM The VM handle.
1410	*/
1411	DECL_FORCE_INLINE(int) vmmR3EmtRendezvousNonCallerReturn(PVM pVM)
1412	{
1413	int rcRet = ASMAtomicReadS32(&pVM->vmm.s.i32RendezvousStatus);
1414	uint32_t cReturned = ASMAtomicIncU32(&pVM->vmm.s.cRendezvousEmtsReturned);
1415	if (cReturned == pVM->cCpus - 1U)
1416	{
1417	int rc = RTSemEventSignal(pVM->vmm.s.hEvtRendezvousDoneCaller);
1418	AssertLogRelRC(rc);
1419	}
1420
1421	AssertLogRelMsgReturn( rcRet <= VINF_SUCCESS
1422	\|\| (rcRet >= VINF_EM_FIRST && rcRet <= VINF_EM_LAST),
1423	("%Rrc\n", rcRet),
1424	VERR_IPE_UNEXPECTED_INFO_STATUS);
1425	return RT_SUCCESS(rcRet) ? rcRet : VINF_SUCCESS;
1426	}
1427
1428
1429	/**
1430	* Common worker for VMMR3EmtRendezvous and VMMR3EmtRendezvousFF.
1431	*
1432	* @returns VBox strict informational status code for EM scheduling. No failures
1433	* will be returned here, those are for the caller only. When
1434	* fIsCaller is set, VINF_SUCESS is always returned.
1435	*
1436	* @param pVM The VM handle.
1437	* @param pVCpu The VMCPU structure for the calling EMT.
1438	* @param fIsCaller Whether we're the VMMR3EmtRendezvous caller or
1439	* not.
1440	* @param fFlags The flags.
1441	* @param pfnRendezvous The callback.
1442	* @param pvUser The user argument for the callback.
1443	*/
1444	static int vmmR3EmtRendezvousCommon(PVM pVM, PVMCPU pVCpu, bool fIsCaller,
1445	uint32_t fFlags, PFNVMMEMTRENDEZVOUS pfnRendezvous, void *pvUser)
1446	{
1447	int rc;
1448
1449	/*
1450	* Enter, the last EMT triggers the next callback phase.
1451	*/
1452	uint32_t cEntered = ASMAtomicIncU32(&pVM->vmm.s.cRendezvousEmtsEntered);
1453	if (cEntered != pVM->cCpus)
1454	{
1455	if ((fFlags & VMMEMTRENDEZVOUS_FLAGS_TYPE_MASK) == VMMEMTRENDEZVOUS_FLAGS_TYPE_ONE_BY_ONE)
1456	{
1457	/* Wait for our turn. */
1458	rc = RTSemEventWait(pVM->vmm.s.hEvtRendezvousEnterOneByOne, RT_INDEFINITE_WAIT);
1459	AssertLogRelRC(rc);
1460	}
1461	else if ((fFlags & VMMEMTRENDEZVOUS_FLAGS_TYPE_MASK) == VMMEMTRENDEZVOUS_FLAGS_TYPE_ALL_AT_ONCE)
1462	{
1463	/* Wait for the last EMT to arrive and wake everyone up. */
1464	rc = RTSemEventMultiWait(pVM->vmm.s.hEvtMulRendezvousEnterAllAtOnce, RT_INDEFINITE_WAIT);
1465	AssertLogRelRC(rc);
1466	}
1467	else if ( (fFlags & VMMEMTRENDEZVOUS_FLAGS_TYPE_MASK) == VMMEMTRENDEZVOUS_FLAGS_TYPE_ASCENDING
1468	\|\| (fFlags & VMMEMTRENDEZVOUS_FLAGS_TYPE_MASK) == VMMEMTRENDEZVOUS_FLAGS_TYPE_DESCENDING)
1469	{
1470	/* Wait for our turn. */
1471	rc = RTSemEventWait(pVM->vmm.s.pahEvtRendezvousEnterOrdered[pVCpu->idCpu], RT_INDEFINITE_WAIT);
1472	AssertLogRelRC(rc);
1473	}
1474	else
1475	{
1476	Assert((fFlags & VMMEMTRENDEZVOUS_FLAGS_TYPE_MASK) == VMMEMTRENDEZVOUS_FLAGS_TYPE_ONCE);
1477
1478	/*
1479	* The execute once is handled specially to optimize the code flow.
1480	*
1481	* The last EMT to arrive will perform the callback and the other
1482	* EMTs will wait on the Done/DoneCaller semaphores (instead of
1483	* the EnterOneByOne/AllAtOnce) in the meanwhile. When the callback
1484	* returns, that EMT will initiate the normal return sequence.
1485	*/
1486	if (!fIsCaller)
1487	{
1488	rc = RTSemEventMultiWait(pVM->vmm.s.hEvtMulRendezvousDone, RT_INDEFINITE_WAIT);
1489	AssertLogRelRC(rc);
1490
1491	return vmmR3EmtRendezvousNonCallerReturn(pVM);
1492	}
1493	return VINF_SUCCESS;
1494	}
1495	}
1496	else
1497	{
1498	/*
1499	* All EMTs are waiting, clear the FF and take action according to the
1500	* execution method.
1501	*/
1502	VM_FF_CLEAR(pVM, VM_FF_EMT_RENDEZVOUS);
1503
1504	if ((fFlags & VMMEMTRENDEZVOUS_FLAGS_TYPE_MASK) == VMMEMTRENDEZVOUS_FLAGS_TYPE_ALL_AT_ONCE)
1505	{
1506	/* Wake up everyone. */
1507	rc = RTSemEventMultiSignal(pVM->vmm.s.hEvtMulRendezvousEnterAllAtOnce);
1508	AssertLogRelRC(rc);
1509	}
1510	else if ( (fFlags & VMMEMTRENDEZVOUS_FLAGS_TYPE_MASK) == VMMEMTRENDEZVOUS_FLAGS_TYPE_ASCENDING
1511	\|\| (fFlags & VMMEMTRENDEZVOUS_FLAGS_TYPE_MASK) == VMMEMTRENDEZVOUS_FLAGS_TYPE_DESCENDING)
1512	{
1513	/* Figure out who to wake up and wake it up. If it's ourself, then
1514	it's easy otherwise wait for our turn. */
1515	VMCPUID iFirst = (fFlags & VMMEMTRENDEZVOUS_FLAGS_TYPE_MASK) == VMMEMTRENDEZVOUS_FLAGS_TYPE_ASCENDING
1516	? 0
1517	: pVM->cCpus - 1U;
1518	if (pVCpu->idCpu != iFirst)
1519	{
1520	rc = RTSemEventSignal(pVM->vmm.s.pahEvtRendezvousEnterOrdered[iFirst]);
1521	AssertLogRelRC(rc);
1522	rc = RTSemEventWait(pVM->vmm.s.pahEvtRendezvousEnterOrdered[pVCpu->idCpu], RT_INDEFINITE_WAIT);
1523	AssertLogRelRC(rc);
1524	}
1525	}
1526	/* else: execute the handler on the current EMT and wake up one or more threads afterwards. */
1527	}
1528
1529
1530	/*
1531	* Do the callback and update the status if necessary.
1532	*/
1533	if ( !(fFlags & VMMEMTRENDEZVOUS_FLAGS_STOP_ON_ERROR)
1534	\|\| RT_SUCCESS(ASMAtomicUoReadS32(&pVM->vmm.s.i32RendezvousStatus)) )
1535	{
1536	VBOXSTRICTRC rcStrict = pfnRendezvous(pVM, pVCpu, pvUser);
1537	if (rcStrict != VINF_SUCCESS)
1538	{
1539	AssertLogRelMsg( rcStrict <= VINF_SUCCESS
1540	\|\| (rcStrict >= VINF_EM_FIRST && rcStrict <= VINF_EM_LAST),
1541	("%Rrc\n", VBOXSTRICTRC_VAL(rcStrict)));
1542	int32_t i32RendezvousStatus;
1543	do
1544	{
1545	i32RendezvousStatus = ASMAtomicUoReadS32(&pVM->vmm.s.i32RendezvousStatus);
1546	if ( rcStrict == i32RendezvousStatus
1547	\|\| RT_FAILURE(i32RendezvousStatus)
1548	\|\| ( i32RendezvousStatus != VINF_SUCCESS
1549	&& rcStrict > i32RendezvousStatus))
1550	break;
1551	} while (!ASMAtomicCmpXchgS32(&pVM->vmm.s.i32RendezvousStatus, VBOXSTRICTRC_VAL(rcStrict), i32RendezvousStatus));
1552	}
1553	}
1554
1555	/*
1556	* Increment the done counter and take action depending on whether we're
1557	* the last to finish callback execution.
1558	*/
1559	uint32_t cDone = ASMAtomicIncU32(&pVM->vmm.s.cRendezvousEmtsDone);
1560	if ( cDone != pVM->cCpus
1561	&& (fFlags & VMMEMTRENDEZVOUS_FLAGS_TYPE_MASK) != VMMEMTRENDEZVOUS_FLAGS_TYPE_ONCE)
1562	{
1563	/* Signal the next EMT? */
1564	if ((fFlags & VMMEMTRENDEZVOUS_FLAGS_TYPE_MASK) == VMMEMTRENDEZVOUS_FLAGS_TYPE_ONE_BY_ONE)
1565	{
1566	rc = RTSemEventSignal(pVM->vmm.s.hEvtRendezvousEnterOneByOne);
1567	AssertLogRelRC(rc);
1568	}
1569	else if ((fFlags & VMMEMTRENDEZVOUS_FLAGS_TYPE_MASK) == VMMEMTRENDEZVOUS_FLAGS_TYPE_ASCENDING)
1570	{
1571	Assert(cDone == pVCpu->idCpu + 1U);
1572	rc = RTSemEventSignal(pVM->vmm.s.pahEvtRendezvousEnterOrdered[pVCpu->idCpu + 1U]);
1573	AssertLogRelRC(rc);
1574	}
1575	else if ((fFlags & VMMEMTRENDEZVOUS_FLAGS_TYPE_MASK) == VMMEMTRENDEZVOUS_FLAGS_TYPE_DESCENDING)
1576	{
1577	Assert(pVM->cCpus - cDone == pVCpu->idCpu);
1578	rc = RTSemEventSignal(pVM->vmm.s.pahEvtRendezvousEnterOrdered[pVM->cCpus - cDone - 1U]);
1579	AssertLogRelRC(rc);
1580	}
1581
1582	/* Wait for the rest to finish (the caller waits on hEvtRendezvousDoneCaller). */
1583	if (!fIsCaller)
1584	{
1585	rc = RTSemEventMultiWait(pVM->vmm.s.hEvtMulRendezvousDone, RT_INDEFINITE_WAIT);
1586	AssertLogRelRC(rc);
1587	}
1588	}
1589	else
1590	{
1591	/* Callback execution is all done, tell the rest to return. */
1592	rc = RTSemEventMultiSignal(pVM->vmm.s.hEvtMulRendezvousDone);
1593	AssertLogRelRC(rc);
1594	}
1595
1596	if (!fIsCaller)
1597	return vmmR3EmtRendezvousNonCallerReturn(pVM);
1598	return VINF_SUCCESS;
1599	}
1600
1601
1602	/**
1603	* Called in response to VM_FF_EMT_RENDEZVOUS.
1604	*
1605	* @returns VBox strict status code - EM scheduling. No errors will be returned
1606	* here, nor will any non-EM scheduling status codes be returned.
1607	*
1608	* @param pVM The VM handle
1609	* @param pVCpu The handle of the calling EMT.
1610	*
1611	* @thread EMT
1612	*/
1613	VMMR3DECL(int) VMMR3EmtRendezvousFF(PVM pVM, PVMCPU pVCpu)
1614	{
1615	return vmmR3EmtRendezvousCommon(pVM, pVCpu, false /* fIsCaller */, pVM->vmm.s.fRendezvousFlags,
1616	pVM->vmm.s.pfnRendezvous, pVM->vmm.s.pvRendezvousUser);
1617	}
1618
1619
1620	/**
1621	* EMT rendezvous.
1622	*
1623	* Gathers all the EMTs and execute some code on each of them, either in a one
1624	* by one fashion or all at once.
1625	*
1626	* @returns VBox strict status code. This will be the the first error,
1627	* VINF_SUCCESS, or an EM scheduling status code.
1628	*
1629	* @param pVM The VM handle.
1630	* @param fFlags Flags indicating execution methods. See
1631	* grp_VMMR3EmtRendezvous_fFlags.
1632	* @param pfnRendezvous The callback.
1633	* @param pvUser User argument for the callback.
1634	*
1635	* @thread Any.
1636	*/
1637	VMMR3DECL(int) VMMR3EmtRendezvous(PVM pVM, uint32_t fFlags, PFNVMMEMTRENDEZVOUS pfnRendezvous, void *pvUser)
1638	{
1639	/*
1640	* Validate input.
1641	*/
1642	AssertMsg( (fFlags & VMMEMTRENDEZVOUS_FLAGS_TYPE_MASK) != VMMEMTRENDEZVOUS_FLAGS_TYPE_INVALID
1643	&& (fFlags & VMMEMTRENDEZVOUS_FLAGS_TYPE_MASK) <= VMMEMTRENDEZVOUS_FLAGS_TYPE_DESCENDING
1644	&& !(fFlags & ~VMMEMTRENDEZVOUS_FLAGS_VALID_MASK), ("%#x\n", fFlags));
1645	AssertMsg( !(fFlags & VMMEMTRENDEZVOUS_FLAGS_STOP_ON_ERROR)
1646	\|\| ( (fFlags & VMMEMTRENDEZVOUS_FLAGS_TYPE_MASK) != VMMEMTRENDEZVOUS_FLAGS_TYPE_ALL_AT_ONCE
1647	&& (fFlags & VMMEMTRENDEZVOUS_FLAGS_TYPE_MASK) != VMMEMTRENDEZVOUS_FLAGS_TYPE_ONCE),
1648	("type %u\n", fFlags & VMMEMTRENDEZVOUS_FLAGS_TYPE_MASK));
1649
1650	VBOXSTRICTRC rcStrict;
1651	PVMCPU pVCpu = VMMGetCpu(pVM);
1652	if (!pVCpu)
1653	/*
1654	* Forward the request to an EMT thread.
1655	*/
1656	rcStrict = VMR3ReqCallWait(pVM, VMCPUID_ANY,
1657	(PFNRT)VMMR3EmtRendezvous, 4, pVM, fFlags, pfnRendezvous, pvUser);
1658	else if (pVM->cCpus == 1)
1659	/*
1660	* Shortcut for the single EMT case.
1661	*/
1662	rcStrict = pfnRendezvous(pVM, pVCpu, pvUser);
1663	else
1664	{
1665	/*
1666	* Spin lock. If busy, wait for the other EMT to finish while keeping a
1667	* lookout of the RENDEZVOUS FF.
1668	*/
1669	int rc;
1670	rcStrict = VINF_SUCCESS;
1671	if (RT_UNLIKELY(!ASMAtomicCmpXchgU32(&pVM->vmm.s.u32RendezvousLock, 0x77778888, 0)))
1672	{
1673	while (!ASMAtomicCmpXchgU32(&pVM->vmm.s.u32RendezvousLock, 0x77778888, 0))
1674	{
1675	if (VM_FF_ISPENDING(pVM, VM_FF_EMT_RENDEZVOUS))
1676	{
1677	rc = VMMR3EmtRendezvousFF(pVM, pVCpu);
1678	if ( rc != VINF_SUCCESS
1679	&& ( rcStrict == VINF_SUCCESS
1680	\|\| rcStrict > rc))
1681	rcStrict = rc;
1682	/** @todo Perhaps deal with termination here? */
1683	}
1684	ASMNopPause();
1685	}
1686	}
1687	Assert(!VM_FF_ISPENDING(pVM, VM_FF_EMT_RENDEZVOUS));
1688
1689	/*
1690	* Clear the slate. This is a semaphore ping-pong orgy. :-)
1691	*/
1692	for (VMCPUID i = 0; i < pVM->cCpus; i++)
1693	{
1694	rc = RTSemEventWait(pVM->vmm.s.pahEvtRendezvousEnterOrdered[i], 0);
1695	AssertLogRelMsg(rc == VERR_TIMEOUT \|\| rc == VINF_SUCCESS, ("%Rrc\n", rc));
1696	}
1697	rc = RTSemEventWait(pVM->vmm.s.hEvtRendezvousEnterOneByOne, 0); AssertLogRelMsg(rc == VERR_TIMEOUT \|\| rc == VINF_SUCCESS, ("%Rrc\n", rc));
1698	rc = RTSemEventMultiReset(pVM->vmm.s.hEvtMulRendezvousEnterAllAtOnce); AssertLogRelRC(rc);
1699	rc = RTSemEventMultiReset(pVM->vmm.s.hEvtMulRendezvousDone); AssertLogRelRC(rc);
1700	rc = RTSemEventWait(pVM->vmm.s.hEvtRendezvousDoneCaller, 0); AssertLogRelMsg(rc == VERR_TIMEOUT \|\| rc == VINF_SUCCESS, ("%Rrc\n", rc));
1701	ASMAtomicWriteU32(&pVM->vmm.s.cRendezvousEmtsEntered, 0);
1702	ASMAtomicWriteU32(&pVM->vmm.s.cRendezvousEmtsDone, 0);
1703	ASMAtomicWriteU32(&pVM->vmm.s.cRendezvousEmtsReturned, 0);
1704	ASMAtomicWriteS32(&pVM->vmm.s.i32RendezvousStatus, VINF_SUCCESS);
1705	ASMAtomicWritePtr((void * volatile )&pVM->vmm.s.pfnRendezvous, (void )(uintptr_t)pfnRendezvous);
1706	ASMAtomicWritePtr(&pVM->vmm.s.pvRendezvousUser, pvUser);
1707	ASMAtomicWriteU32(&pVM->vmm.s.fRendezvousFlags, fFlags);
1708
1709	/*
1710	* Set the FF and poke the other EMTs.
1711	*/
1712	VM_FF_SET(pVM, VM_FF_EMT_RENDEZVOUS);
1713	VMR3NotifyGlobalFFU(pVM->pUVM, VMNOTIFYFF_FLAGS_POKE);
1714
1715	/*
1716	* Do the same ourselves.
1717	*/
1718	vmmR3EmtRendezvousCommon(pVM, pVCpu, true /* fIsCaller */, fFlags, pfnRendezvous, pvUser);
1719
1720	/*
1721	* The caller waits for the other EMTs to be done and return before doing
1722	* the cleanup. This makes away with wakeup / reset races we would otherwise
1723	* risk in the multiple release event semaphore code (hEvtRendezvousDoneCaller).
1724	*/
1725	rc = RTSemEventWait(pVM->vmm.s.hEvtRendezvousDoneCaller, RT_INDEFINITE_WAIT);
1726	AssertLogRelRC(rc);
1727
1728	/*
1729	* Get the return code and clean up a little bit.
1730	*/
1731	int rcMy = pVM->vmm.s.i32RendezvousStatus;
1732	ASMAtomicWritePtr((void * volatile *)&pVM->vmm.s.pfnRendezvous, NULL);
1733
1734	ASMAtomicWriteU32(&pVM->vmm.s.u32RendezvousLock, 0);
1735
1736	/*
1737	* Merge rcStrict and rcMy.
1738	*/
1739	AssertRC(VBOXSTRICTRC_VAL(rcStrict));
1740	if ( rcMy != VINF_SUCCESS
1741	&& ( rcStrict == VINF_SUCCESS
1742	\|\| rcStrict > rcMy))
1743	rcStrict = rcMy;
1744	}
1745
1746	AssertLogRelMsgReturn( rcStrict <= VINF_SUCCESS
1747	\|\| (rcStrict >= VINF_EM_FIRST && rcStrict <= VINF_EM_LAST),
1748	("%Rrc\n", VBOXSTRICTRC_VAL(rcStrict)),
1749	VERR_IPE_UNEXPECTED_INFO_STATUS);
1750	return VBOXSTRICTRC_VAL(rcStrict);
1751	}
1752
1753
1754	/**
1755	* Read from the ring 0 jump buffer stack
1756	*
1757	* @returns VBox status code.
1758	*
1759	* @param pVM Pointer to the shared VM structure.
1760	* @param idCpu The ID of the source CPU context (for the address).
1761	* @param pAddress Where to start reading.
1762	* @param pvBuf Where to store the data we've read.
1763	* @param cbRead The number of bytes to read.
1764	*/
1765	VMMR3DECL(int) VMMR3ReadR0Stack(PVM pVM, VMCPUID idCpu, RTHCUINTPTR pAddress, void *pvBuf, size_t cbRead)
1766	{
1767	PVMCPU pVCpu = VMMGetCpuById(pVM, idCpu);
1768	AssertReturn(pVCpu, VERR_INVALID_PARAMETER);
1769
1770	RTHCUINTPTR offset = pVCpu->vmm.s.CallRing3JmpBufR0.SpCheck - pAddress;
1771	if (offset >= pVCpu->vmm.s.CallRing3JmpBufR0.cbSavedStack)
1772	return VERR_INVALID_POINTER;
1773
1774	memcpy(pvBuf, pVCpu->vmm.s.pbEMTStackR3 + pVCpu->vmm.s.CallRing3JmpBufR0.cbSavedStack - offset, cbRead);
1775	return VINF_SUCCESS;
1776	}
1777
1778
1779	/**
1780	* Calls a RC function.
1781	*
1782	* @param pVM The VM handle.
1783	* @param RCPtrEntry The address of the RC function.
1784	* @param cArgs The number of arguments in the ....
1785	* @param ... Arguments to the function.
1786	*/
1787	VMMR3DECL(int) VMMR3CallRC(PVM pVM, RTRCPTR RCPtrEntry, unsigned cArgs, ...)
1788	{
1789	va_list args;
1790	va_start(args, cArgs);
1791	int rc = VMMR3CallRCV(pVM, RCPtrEntry, cArgs, args);
1792	va_end(args);
1793	return rc;
1794	}
1795
1796
1797	/**
1798	* Calls a RC function.
1799	*
1800	* @param pVM The VM handle.
1801	* @param RCPtrEntry The address of the RC function.
1802	* @param cArgs The number of arguments in the ....
1803	* @param args Arguments to the function.
1804	*/
1805	VMMR3DECL(int) VMMR3CallRCV(PVM pVM, RTRCPTR RCPtrEntry, unsigned cArgs, va_list args)
1806	{
1807	/* Raw mode implies 1 VCPU. */
1808	AssertReturn(pVM->cCpus == 1, VERR_RAW_MODE_INVALID_SMP);
1809	PVMCPU pVCpu = &pVM->aCpus[0];
1810
1811	Log2(("VMMR3CallGCV: RCPtrEntry=%RRv cArgs=%d\n", RCPtrEntry, cArgs));
1812
1813	/*
1814	* Setup the call frame using the trampoline.
1815	*/
1816	CPUMHyperSetCtxCore(pVCpu, NULL);
1817	memset(pVCpu->vmm.s.pbEMTStackR3, 0xaa, VMM_STACK_SIZE); /* Clear the stack. */
1818	CPUMSetHyperESP(pVCpu, pVCpu->vmm.s.pbEMTStackBottomRC - cArgs * sizeof(RTGCUINTPTR32));
1819	PRTGCUINTPTR32 pFrame = (PRTGCUINTPTR32)(pVCpu->vmm.s.pbEMTStackR3 + VMM_STACK_SIZE) - cArgs;
1820	int i = cArgs;
1821	while (i-- > 0)
1822	*pFrame++ = va_arg(args, RTGCUINTPTR32);
1823
1824	CPUMPushHyper(pVCpu, cArgs * sizeof(RTGCUINTPTR32)); /* stack frame size */
1825	CPUMPushHyper(pVCpu, RCPtrEntry); /* what to call */
1826	CPUMSetHyperEIP(pVCpu, pVM->vmm.s.pfnCallTrampolineRC);
1827
1828	/*
1829	* We hide log flushes (outer) and hypervisor interrupts (inner).
1830	*/
1831	for (;;)
1832	{
1833	int rc;
1834	Assert(CPUMGetHyperCR3(pVCpu) && CPUMGetHyperCR3(pVCpu) == PGMGetHyperCR3(pVCpu));
1835	do
1836	{
1837	#ifdef NO_SUPCALLR0VMM
1838	rc = VERR_GENERAL_FAILURE;
1839	#else
1840	rc = SUPR3CallVMMR0Fast(pVM->pVMR0, VMMR0_DO_RAW_RUN, 0);
1841	if (RT_LIKELY(rc == VINF_SUCCESS))
1842	rc = pVCpu->vmm.s.iLastGZRc;
1843	#endif
1844	} while (rc == VINF_EM_RAW_INTERRUPT_HYPER);
1845
1846	/*
1847	* Flush the logs.
1848	*/
1849	#ifdef LOG_ENABLED
1850	PRTLOGGERRC pLogger = pVM->vmm.s.pRCLoggerR3;
1851	if ( pLogger
1852	&& pLogger->offScratch > 0)
1853	RTLogFlushRC(NULL, pLogger);
1854	#endif
1855	#ifdef VBOX_WITH_RC_RELEASE_LOGGING
1856	PRTLOGGERRC pRelLogger = pVM->vmm.s.pRCRelLoggerR3;
1857	if (RT_UNLIKELY(pRelLogger && pRelLogger->offScratch > 0))
1858	RTLogFlushRC(RTLogRelDefaultInstance(), pRelLogger);
1859	#endif
1860	if (rc == VERR_TRPM_PANIC \|\| rc == VERR_TRPM_DONT_PANIC)
1861	VMMR3FatalDump(pVM, pVCpu, rc);
1862	if (rc != VINF_VMM_CALL_HOST)
1863	{
1864	Log2(("VMMR3CallGCV: returns %Rrc (cs:eip=%04x:%08x)\n", rc, CPUMGetGuestCS(pVCpu), CPUMGetGuestEIP(pVCpu)));
1865	return rc;
1866	}
1867	rc = vmmR3ServiceCallRing3Request(pVM, pVCpu);
1868	if (RT_FAILURE(rc))
1869	return rc;
1870	}
1871	}
1872
1873
1874	/**
1875	* Wrapper for SUPR3CallVMMR0Ex which will deal with VINF_VMM_CALL_HOST returns.
1876	*
1877	* @returns VBox status code.
1878	* @param pVM The VM to operate on.
1879	* @param uOperation Operation to execute.
1880	* @param u64Arg Constant argument.
1881	* @param pReqHdr Pointer to a request header. See SUPR3CallVMMR0Ex for
1882	* details.
1883	*/
1884	VMMR3DECL(int) VMMR3CallR0(PVM pVM, uint32_t uOperation, uint64_t u64Arg, PSUPVMMR0REQHDR pReqHdr)
1885	{
1886	PVMCPU pVCpu = VMMGetCpu(pVM);
1887	AssertReturn(pVCpu, VERR_VM_THREAD_NOT_EMT);
1888
1889	/*
1890	* Call Ring-0 entry with init code.
1891	*/
1892	int rc;
1893	for (;;)
1894	{
1895	#ifdef NO_SUPCALLR0VMM
1896	rc = VERR_GENERAL_FAILURE;
1897	#else
1898	rc = SUPR3CallVMMR0Ex(pVM->pVMR0, pVCpu->idCpu, uOperation, u64Arg, pReqHdr);
1899	#endif
1900	/*
1901	* Flush the logs.
1902	*/
1903	#ifdef LOG_ENABLED
1904	if ( pVCpu->vmm.s.pR0LoggerR3
1905	&& pVCpu->vmm.s.pR0LoggerR3->Logger.offScratch > 0)
1906	RTLogFlushToLogger(&pVCpu->vmm.s.pR0LoggerR3->Logger, NULL);
1907	#endif
1908	if (rc != VINF_VMM_CALL_HOST)
1909	break;
1910	rc = vmmR3ServiceCallRing3Request(pVM, pVCpu);
1911	if (RT_FAILURE(rc) \|\| (rc >= VINF_EM_FIRST && rc <= VINF_EM_LAST))
1912	break;
1913	/* Resume R0 */
1914	}
1915
1916	AssertLogRelMsgReturn(rc == VINF_SUCCESS \|\| VBOX_FAILURE(rc),
1917	("uOperation=%u rc=%Rrc\n", uOperation, rc),
1918	VERR_INTERNAL_ERROR);
1919	return rc;
1920	}
1921
1922
1923	/**
1924	* Resumes executing hypervisor code when interrupted by a queue flush or a
1925	* debug event.
1926	*
1927	* @returns VBox status code.
1928	* @param pVM VM handle.
1929	* @param pVCpu VMCPU handle.
1930	*/
1931	VMMR3DECL(int) VMMR3ResumeHyper(PVM pVM, PVMCPU pVCpu)
1932	{
1933	Log(("VMMR3ResumeHyper: eip=%RRv esp=%RRv\n", CPUMGetHyperEIP(pVCpu), CPUMGetHyperESP(pVCpu)));
1934	AssertReturn(pVM->cCpus == 1, VERR_RAW_MODE_INVALID_SMP);
1935
1936	/*
1937	* We hide log flushes (outer) and hypervisor interrupts (inner).
1938	*/
1939	for (;;)
1940	{
1941	int rc;
1942	Assert(CPUMGetHyperCR3(pVCpu) && CPUMGetHyperCR3(pVCpu) == PGMGetHyperCR3(pVCpu));
1943	do
1944	{
1945	#ifdef NO_SUPCALLR0VMM
1946	rc = VERR_GENERAL_FAILURE;
1947	#else
1948	rc = SUPR3CallVMMR0Fast(pVM->pVMR0, VMMR0_DO_RAW_RUN, 0);
1949	if (RT_LIKELY(rc == VINF_SUCCESS))
1950	rc = pVCpu->vmm.s.iLastGZRc;
1951	#endif
1952	} while (rc == VINF_EM_RAW_INTERRUPT_HYPER);
1953
1954	/*
1955	* Flush the loggers,
1956	*/
1957	#ifdef LOG_ENABLED
1958	PRTLOGGERRC pLogger = pVM->vmm.s.pRCLoggerR3;
1959	if ( pLogger
1960	&& pLogger->offScratch > 0)
1961	RTLogFlushRC(NULL, pLogger);
1962	#endif
1963	#ifdef VBOX_WITH_RC_RELEASE_LOGGING
1964	PRTLOGGERRC pRelLogger = pVM->vmm.s.pRCRelLoggerR3;
1965	if (RT_UNLIKELY(pRelLogger && pRelLogger->offScratch > 0))
1966	RTLogFlushRC(RTLogRelDefaultInstance(), pRelLogger);
1967	#endif
1968	if (rc == VERR_TRPM_PANIC \|\| rc == VERR_TRPM_DONT_PANIC)
1969	VMMR3FatalDump(pVM, pVCpu, rc);
1970	if (rc != VINF_VMM_CALL_HOST)
1971	{
1972	Log(("VMMR3ResumeHyper: returns %Rrc\n", rc));
1973	return rc;
1974	}
1975	rc = vmmR3ServiceCallRing3Request(pVM, pVCpu);
1976	if (RT_FAILURE(rc))
1977	return rc;
1978	}
1979	}
1980
1981
1982	/**
1983	* Service a call to the ring-3 host code.
1984	*
1985	* @returns VBox status code.
1986	* @param pVM VM handle.
1987	* @param pVCpu VMCPU handle
1988	* @remark Careful with critsects.
1989	*/
1990	static int vmmR3ServiceCallRing3Request(PVM pVM, PVMCPU pVCpu)
1991	{
1992	/*
1993	* We must also check for pending critsect exits or else we can deadlock
1994	* when entering other critsects here.
1995	*/
1996	if (VMCPU_FF_ISPENDING(pVCpu, VMCPU_FF_PDM_CRITSECT))
1997	PDMCritSectFF(pVCpu);
1998
1999	switch (pVCpu->vmm.s.enmCallRing3Operation)
2000	{
2001	/*
2002	* Acquire the PDM lock.
2003	*/
2004	case VMMCALLRING3_PDM_LOCK:
2005	{
2006	pVCpu->vmm.s.rcCallRing3 = PDMR3LockCall(pVM);
2007	break;
2008	}
2009
2010	/*
2011	* Flush a PDM queue.
2012	*/
2013	case VMMCALLRING3_PDM_QUEUE_FLUSH:
2014	{
2015	PDMR3QueueFlushWorker(pVM, NULL);
2016	pVCpu->vmm.s.rcCallRing3 = VINF_SUCCESS;
2017	break;
2018	}
2019
2020	/*
2021	* Grow the PGM pool.
2022	*/
2023	case VMMCALLRING3_PGM_POOL_GROW:
2024	{
2025	pVCpu->vmm.s.rcCallRing3 = PGMR3PoolGrow(pVM);
2026	break;
2027	}
2028
2029	/*
2030	* Maps an page allocation chunk into ring-3 so ring-0 can use it.
2031	*/
2032	case VMMCALLRING3_PGM_MAP_CHUNK:
2033	{
2034	pVCpu->vmm.s.rcCallRing3 = PGMR3PhysChunkMap(pVM, pVCpu->vmm.s.u64CallRing3Arg);
2035	break;
2036	}
2037
2038	/*
2039	* Allocates more handy pages.
2040	*/
2041	case VMMCALLRING3_PGM_ALLOCATE_HANDY_PAGES:
2042	{
2043	pVCpu->vmm.s.rcCallRing3 = PGMR3PhysAllocateHandyPages(pVM);
2044	break;
2045	}
2046
2047	/*
2048	* Acquire the PGM lock.
2049	*/
2050	case VMMCALLRING3_PGM_LOCK:
2051	{
2052	pVCpu->vmm.s.rcCallRing3 = PGMR3LockCall(pVM);
2053	break;
2054	}
2055
2056	/*
2057	* Acquire the MM hypervisor heap lock.
2058	*/
2059	case VMMCALLRING3_MMHYPER_LOCK:
2060	{
2061	pVCpu->vmm.s.rcCallRing3 = MMR3LockCall(pVM);
2062	break;
2063	}
2064
2065	/*
2066	* Flush REM handler notifications.
2067	*/
2068	case VMMCALLRING3_REM_REPLAY_HANDLER_NOTIFICATIONS:
2069	{
2070	REMR3ReplayHandlerNotifications(pVM);
2071	pVCpu->vmm.s.rcCallRing3 = VINF_SUCCESS;
2072	break;
2073	}
2074
2075	/*
2076	* This is a noop. We just take this route to avoid unnecessary
2077	* tests in the loops.
2078	*/
2079	case VMMCALLRING3_VMM_LOGGER_FLUSH:
2080	pVCpu->vmm.s.rcCallRing3 = VINF_SUCCESS;
2081	LogAlways(("FLUSH\n"));
2082	break;
2083
2084	/*
2085	* Set the VM error message.
2086	*/
2087	case VMMCALLRING3_VM_SET_ERROR:
2088	VMR3SetErrorWorker(pVM);
2089	pVCpu->vmm.s.rcCallRing3 = VINF_SUCCESS;
2090	break;
2091
2092	/*
2093	* Set the VM runtime error message.
2094	*/
2095	case VMMCALLRING3_VM_SET_RUNTIME_ERROR:
2096	pVCpu->vmm.s.rcCallRing3 = VMR3SetRuntimeErrorWorker(pVM);
2097	break;
2098
2099	/*
2100	* Signal a ring 0 hypervisor assertion.
2101	* Cancel the longjmp operation that's in progress.
2102	*/
2103	case VMMCALLRING3_VM_R0_ASSERTION:
2104	pVCpu->vmm.s.enmCallRing3Operation = VMMCALLRING3_INVALID;
2105	pVCpu->vmm.s.CallRing3JmpBufR0.fInRing3Call = false;
2106	#ifdef RT_ARCH_X86
2107	pVCpu->vmm.s.CallRing3JmpBufR0.eip = 0;
2108	#else
2109	pVCpu->vmm.s.CallRing3JmpBufR0.rip = 0;
2110	#endif
2111	LogRel((pVM->vmm.s.szRing0AssertMsg1));
2112	LogRel((pVM->vmm.s.szRing0AssertMsg2));
2113	return VERR_VMM_RING0_ASSERTION;
2114
2115	/*
2116	* A forced switch to ring 0 for preemption purposes.
2117	*/
2118	case VMMCALLRING3_VM_R0_PREEMPT:
2119	pVCpu->vmm.s.rcCallRing3 = VINF_SUCCESS;
2120	break;
2121
2122	default:
2123	AssertMsgFailed(("enmCallRing3Operation=%d\n", pVCpu->vmm.s.enmCallRing3Operation));
2124	return VERR_INTERNAL_ERROR;
2125	}
2126
2127	pVCpu->vmm.s.enmCallRing3Operation = VMMCALLRING3_INVALID;
2128	return VINF_SUCCESS;
2129	}
2130
2131
2132	/**
2133	* Displays the Force action Flags.
2134	*
2135	* @param pVM The VM handle.
2136	* @param pHlp The output helpers.
2137	* @param pszArgs The additional arguments (ignored).
2138	*/
2139	static DECLCALLBACK(void) vmmR3InfoFF(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs)
2140	{
2141	int c;
2142	uint32_t f;
2143	#define PRINT_FLAG(prf,flag) do { \
2144	if (f & (prf##flag)) \
2145	{ \
2146	static const char *s_psz = #flag; \
2147	if (!(c % 6)) \
2148	pHlp->pfnPrintf(pHlp, "%s\n %s", c ? "," : "", s_psz); \
2149	else \
2150	pHlp->pfnPrintf(pHlp, ", %s", s_psz); \
2151	c++; \
2152	f &= ~(prf##flag); \
2153	} \
2154	} while (0)
2155
2156	#define PRINT_GROUP(prf,grp,sfx) do { \
2157	if (f & (prf##grp##sfx)) \
2158	{ \
2159	static const char *s_psz = #grp; \
2160	if (!(c % 5)) \
2161	pHlp->pfnPrintf(pHlp, "%s %s", c ? ",\n" : " Groups:\n", s_psz); \
2162	else \
2163	pHlp->pfnPrintf(pHlp, ", %s", s_psz); \
2164	c++; \
2165	} \
2166	} while (0)
2167
2168	/*
2169	* The global flags.
2170	*/
2171	const uint32_t fGlobalForcedActions = pVM->fGlobalForcedActions;
2172	pHlp->pfnPrintf(pHlp, "Global FFs: %#RX32", fGlobalForcedActions);
2173
2174	/* show the flag mnemonics */
2175	c = 0;
2176	f = fGlobalForcedActions;
2177	PRINT_FLAG(VM_FF_,TM_VIRTUAL_SYNC);
2178	PRINT_FLAG(VM_FF_,PDM_QUEUES);
2179	PRINT_FLAG(VM_FF_,PDM_DMA);
2180	PRINT_FLAG(VM_FF_,DBGF);
2181	PRINT_FLAG(VM_FF_,REQUEST);
2182	PRINT_FLAG(VM_FF_,TERMINATE);
2183	PRINT_FLAG(VM_FF_,RESET);
2184	PRINT_FLAG(VM_FF_,EMT_RENDEZVOUS);
2185	PRINT_FLAG(VM_FF_,PGM_NEED_HANDY_PAGES);
2186	PRINT_FLAG(VM_FF_,PGM_NO_MEMORY);
2187	PRINT_FLAG(VM_FF_,REM_HANDLER_NOTIFY);
2188	PRINT_FLAG(VM_FF_,DEBUG_SUSPEND);
2189	if (f)
2190	pHlp->pfnPrintf(pHlp, "%s\n Unknown bits: %#RX32\n", c ? "," : "", f);
2191	else
2192	pHlp->pfnPrintf(pHlp, "\n");
2193
2194	/* the groups */
2195	c = 0;
2196	f = fGlobalForcedActions;
2197	PRINT_GROUP(VM_FF_,EXTERNAL_SUSPENDED,_MASK);
2198	PRINT_GROUP(VM_FF_,EXTERNAL_HALTED,_MASK);
2199	PRINT_GROUP(VM_FF_,HIGH_PRIORITY_PRE,_MASK);
2200	PRINT_GROUP(VM_FF_,HIGH_PRIORITY_PRE_RAW,_MASK);
2201	PRINT_GROUP(VM_FF_,HIGH_PRIORITY_POST,_MASK);
2202	PRINT_GROUP(VM_FF_,NORMAL_PRIORITY_POST,_MASK);
2203	PRINT_GROUP(VM_FF_,NORMAL_PRIORITY,_MASK);
2204	PRINT_GROUP(VM_FF_,ALL_BUT_RAW,_MASK);
2205	if (c)
2206	pHlp->pfnPrintf(pHlp, "\n");
2207
2208	/*
2209	* Per CPU flags.
2210	*/
2211	for (VMCPUID i = 0; i < pVM->cCpus; i++)
2212	{
2213	const uint32_t fLocalForcedActions = pVM->aCpus[i].fLocalForcedActions;
2214	pHlp->pfnPrintf(pHlp, "CPU %u FFs: %#RX32", i, fLocalForcedActions);
2215
2216	/* show the flag mnemonics */
2217	c = 0;
2218	f = fLocalForcedActions;
2219	PRINT_FLAG(VMCPU_FF_,INTERRUPT_APIC);
2220	PRINT_FLAG(VMCPU_FF_,INTERRUPT_PIC);
2221	PRINT_FLAG(VMCPU_FF_,TIMER);
2222	PRINT_FLAG(VMCPU_FF_,PDM_CRITSECT);
2223	PRINT_FLAG(VMCPU_FF_,PGM_SYNC_CR3);
2224	PRINT_FLAG(VMCPU_FF_,PGM_SYNC_CR3_NON_GLOBAL);
2225	PRINT_FLAG(VMCPU_FF_,TRPM_SYNC_IDT);
2226	PRINT_FLAG(VMCPU_FF_,SELM_SYNC_TSS);
2227	PRINT_FLAG(VMCPU_FF_,SELM_SYNC_GDT);
2228	PRINT_FLAG(VMCPU_FF_,SELM_SYNC_LDT);
2229	PRINT_FLAG(VMCPU_FF_,INHIBIT_INTERRUPTS);
2230	PRINT_FLAG(VMCPU_FF_,CSAM_SCAN_PAGE);
2231	PRINT_FLAG(VMCPU_FF_,CSAM_PENDING_ACTION);
2232	PRINT_FLAG(VMCPU_FF_,TO_R3);
2233	if (f)
2234	pHlp->pfnPrintf(pHlp, "%s\n Unknown bits: %#RX32\n", c ? "," : "", f);
2235	else
2236	pHlp->pfnPrintf(pHlp, "\n");
2237
2238	/* the groups */
2239	c = 0;
2240	f = fLocalForcedActions;
2241	PRINT_GROUP(VMCPU_FF_,EXTERNAL_SUSPENDED,_MASK);
2242	PRINT_GROUP(VMCPU_FF_,EXTERNAL_HALTED,_MASK);
2243	PRINT_GROUP(VMCPU_FF_,HIGH_PRIORITY_PRE,_MASK);
2244	PRINT_GROUP(VMCPU_FF_,HIGH_PRIORITY_PRE_RAW,_MASK);
2245	PRINT_GROUP(VMCPU_FF_,HIGH_PRIORITY_POST,_MASK);
2246	PRINT_GROUP(VMCPU_FF_,NORMAL_PRIORITY_POST,_MASK);
2247	PRINT_GROUP(VMCPU_FF_,NORMAL_PRIORITY,_MASK);
2248	PRINT_GROUP(VMCPU_FF_,RESUME_GUEST,_MASK);
2249	PRINT_GROUP(VMCPU_FF_,HWACCM_TO_R3,_MASK);
2250	PRINT_GROUP(VMCPU_FF_,ALL_BUT_RAW,_MASK);
2251	if (c)
2252	pHlp->pfnPrintf(pHlp, "\n");
2253	}
2254
2255	#undef PRINT_FLAG
2256	#undef PRINT_GROUP
2257	}
2258

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

source: vbox/trunk/src/VBox/VMM/VMM.cpp@ 23794

Download in other formats: