VMM.cpp@ 20552

Last change on this file since 20552 was 20545, checked in by vboxsync, 16 years ago
VMM: Instrumented the setjump code with stack usage statistics (only 32-bit and stack switching version atm).
Property svn:eol-style set to `native` Property svn:keywords set to `Id`
File size: 62.9 KB

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1	/* $Id: VMM.cpp 20545 2009-06-13 23:56:48Z 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/stream.h>
91	#include <iprt/string.h>
92	#include <iprt/stdarg.h>
93	#include <iprt/ctype.h>
94
95
96
97	/*******************************************************************************
98	* Defined Constants And Macros *
99	*******************************************************************************/
100	/** The saved state version. */
101	#define VMM_SAVED_STATE_VERSION 3
102
103
104	/*******************************************************************************
105	* Internal Functions *
106	*******************************************************************************/
107	static int vmmR3InitStacks(PVM pVM);
108	static int vmmR3InitLoggers(PVM pVM);
109	static void vmmR3InitRegisterStats(PVM pVM);
110	static DECLCALLBACK(int) vmmR3Save(PVM pVM, PSSMHANDLE pSSM);
111	static DECLCALLBACK(int) vmmR3Load(PVM pVM, PSSMHANDLE pSSM, uint32_t u32Version);
112	static DECLCALLBACK(void) vmmR3YieldEMT(PVM pVM, PTMTIMER pTimer, void *pvUser);
113	static int vmmR3ServiceCallHostRequest(PVM pVM, PVMCPU pVCpu);
114	static DECLCALLBACK(void) vmmR3InfoFF(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs);
115
116
117	/**
118	* Initializes the VMM.
119	*
120	* @returns VBox status code.
121	* @param pVM The VM to operate on.
122	*/
123	VMMR3DECL(int) VMMR3Init(PVM pVM)
124	{
125	LogFlow(("VMMR3Init\n"));
126
127	/*
128	* Assert alignment, sizes and order.
129	*/
130	AssertMsg(pVM->vmm.s.offVM == 0, ("Already initialized!\n"));
131	AssertCompile(sizeof(pVM->vmm.s) <= sizeof(pVM->vmm.padding));
132	AssertCompile(sizeof(pVM->aCpus[0].vmm.s) <= sizeof(pVM->aCpus[0].vmm.padding));
133
134	/*
135	* Init basic VM VMM members.
136	*/
137	pVM->vmm.s.offVM = RT_OFFSETOF(VM, vmm);
138	int rc = CFGMR3QueryU32(CFGMR3GetRoot(pVM), "YieldEMTInterval", &pVM->vmm.s.cYieldEveryMillies);
139	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
140	pVM->vmm.s.cYieldEveryMillies = 23; /* Value arrived at after experimenting with the grub boot prompt. */
141	//pVM->vmm.s.cYieldEveryMillies = 8; //debugging
142	else
143	AssertMsgRCReturn(rc, ("Configuration error. Failed to query \"YieldEMTInterval\", rc=%Rrc\n", rc), rc);
144
145	/*
146	* Initialize the VMM sync critical section.
147	*/
148	rc = RTCritSectInit(&pVM->vmm.s.CritSectSync);
149	AssertRCReturn(rc, rc);
150
151	/* GC switchers are enabled by default. Turned off by HWACCM. */
152	pVM->vmm.s.fSwitcherDisabled = false;
153
154	/*
155	* Register the saved state data unit.
156	*/
157	rc = SSMR3RegisterInternal(pVM, "vmm", 1, VMM_SAVED_STATE_VERSION, VMM_STACK_SIZE + sizeof(RTGCPTR),
158	NULL, vmmR3Save, NULL,
159	NULL, vmmR3Load, NULL);
160	if (RT_FAILURE(rc))
161	return rc;
162
163	/*
164	* Register the Ring-0 VM handle with the session for fast ioctl calls.
165	*/
166	rc = SUPSetVMForFastIOCtl(pVM->pVMR0);
167	if (RT_FAILURE(rc))
168	return rc;
169
170	/*
171	* Init various sub-components.
172	*/
173	rc = vmmR3SwitcherInit(pVM);
174	if (RT_SUCCESS(rc))
175	{
176	rc = vmmR3InitStacks(pVM);
177	if (RT_SUCCESS(rc))
178	{
179	rc = vmmR3InitLoggers(pVM);
180
181	#ifdef VBOX_WITH_NMI
182	/*
183	* Allocate mapping for the host APIC.
184	*/
185	if (RT_SUCCESS(rc))
186	{
187	rc = MMR3HyperReserve(pVM, PAGE_SIZE, "Host APIC", &pVM->vmm.s.GCPtrApicBase);
188	AssertRC(rc);
189	}
190	#endif
191	if (RT_SUCCESS(rc))
192	{
193	/*
194	* Debug info and statistics.
195	*/
196	DBGFR3InfoRegisterInternal(pVM, "ff", "Displays the current Forced actions Flags.", vmmR3InfoFF);
197	vmmR3InitRegisterStats(pVM);
198
199	return VINF_SUCCESS;
200	}
201	}
202	/** @todo: Need failure cleanup. */
203
204	//more todo in here?
205	//if (RT_SUCCESS(rc))
206	//{
207	//}
208	//int rc2 = vmmR3TermCoreCode(pVM);
209	//AssertRC(rc2));
210	}
211
212	return rc;
213	}
214
215
216	/**
217	* Allocate & setup the VMM RC stack(s) (for EMTs).
218	*
219	* The stacks are also used for long jumps in Ring-0.
220	*
221	* @returns VBox status code.
222	* @param pVM Pointer to the shared VM structure.
223	*
224	* @remarks The optional guard page gets it protection setup up during R3 init
225	* completion because of init order issues.
226	*/
227	static int vmmR3InitStacks(PVM pVM)
228	{
229	int rc = VINF_SUCCESS;
230
231	for (VMCPUID idCpu = 0; idCpu < pVM->cCPUs; idCpu++)
232	{
233	PVMCPU pVCpu = &pVM->aCpus[idCpu];
234
235	#ifdef VBOX_STRICT_VMM_STACK
236	rc = MMR3HyperAllocOnceNoRel(pVM, VMM_STACK_SIZE + PAGE_SIZE + PAGE_SIZE, PAGE_SIZE, MM_TAG_VMM, (void **)&pVCpu->vmm.s.pbEMTStackR3);
237	#else
238	rc = MMR3HyperAllocOnceNoRel(pVM, VMM_STACK_SIZE, PAGE_SIZE, MM_TAG_VMM, (void **)&pVCpu->vmm.s.pbEMTStackR3);
239	#endif
240	if (RT_SUCCESS(rc))
241	{
242	#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
243	/* MMHyperR3ToR0 returns R3 when not doing hardware assisted virtualization. */
244	if (!VMMIsHwVirtExtForced(pVM))
245	pVCpu->vmm.s.CallHostR0JmpBuf.pvSavedStack = NIL_RTR0PTR;
246	else
247	#endif
248	pVCpu->vmm.s.CallHostR0JmpBuf.pvSavedStack = MMHyperR3ToR0(pVM, pVCpu->vmm.s.pbEMTStackR3);
249	pVCpu->vmm.s.pbEMTStackRC = MMHyperR3ToRC(pVM, pVCpu->vmm.s.pbEMTStackR3);
250	pVCpu->vmm.s.pbEMTStackBottomRC = pVCpu->vmm.s.pbEMTStackRC + VMM_STACK_SIZE;
251	AssertRelease(pVCpu->vmm.s.pbEMTStackRC);
252
253	CPUMSetHyperESP(pVCpu, pVCpu->vmm.s.pbEMTStackBottomRC);
254	}
255	}
256
257	return rc;
258	}
259
260
261	/**
262	* Initialize the loggers.
263	*
264	* @returns VBox status code.
265	* @param pVM Pointer to the shared VM structure.
266	*/
267	static int vmmR3InitLoggers(PVM pVM)
268	{
269	int rc;
270
271	/*
272	* Allocate RC & R0 Logger instances (they are finalized in the relocator).
273	*/
274	#ifdef LOG_ENABLED
275	PRTLOGGER pLogger = RTLogDefaultInstance();
276	if (pLogger)
277	{
278	pVM->vmm.s.cbRCLogger = RT_OFFSETOF(RTLOGGERRC, afGroups[pLogger->cGroups]);
279	rc = MMR3HyperAllocOnceNoRel(pVM, pVM->vmm.s.cbRCLogger, 0, MM_TAG_VMM, (void **)&pVM->vmm.s.pRCLoggerR3);
280	if (RT_FAILURE(rc))
281	return rc;
282	pVM->vmm.s.pRCLoggerRC = MMHyperR3ToRC(pVM, pVM->vmm.s.pRCLoggerR3);
283
284	# ifdef VBOX_WITH_R0_LOGGING
285	for (unsigned i = 0; i < pVM->cCPUs; i++)
286	{
287	PVMCPU pVCpu = &pVM->aCpus[i];
288
289	rc = MMR3HyperAllocOnceNoRel(pVM, RT_OFFSETOF(VMMR0LOGGER, Logger.afGroups[pLogger->cGroups]),
290	0, MM_TAG_VMM, (void **)&pVCpu->vmm.s.pR0LoggerR3);
291	if (RT_FAILURE(rc))
292	return rc;
293	pVCpu->vmm.s.pR0LoggerR3->pVM = pVM->pVMR0;
294	//pVCpu->vmm.s.pR0LoggerR3->fCreated = false;
295	pVCpu->vmm.s.pR0LoggerR3->cbLogger = RT_OFFSETOF(RTLOGGER, afGroups[pLogger->cGroups]);
296	pVCpu->vmm.s.pR0LoggerR0 = MMHyperR3ToR0(pVM, pVCpu->vmm.s.pR0LoggerR3);
297	}
298	# endif
299	}
300	#endif /* LOG_ENABLED */
301
302	#ifdef VBOX_WITH_RC_RELEASE_LOGGING
303	/*
304	* Allocate RC release logger instances (finalized in the relocator).
305	*/
306	PRTLOGGER pRelLogger = RTLogRelDefaultInstance();
307	if (pRelLogger)
308	{
309	pVM->vmm.s.cbRCRelLogger = RT_OFFSETOF(RTLOGGERRC, afGroups[pRelLogger->cGroups]);
310	rc = MMR3HyperAllocOnceNoRel(pVM, pVM->vmm.s.cbRCRelLogger, 0, MM_TAG_VMM, (void **)&pVM->vmm.s.pRCRelLoggerR3);
311	if (RT_FAILURE(rc))
312	return rc;
313	pVM->vmm.s.pRCRelLoggerRC = MMHyperR3ToRC(pVM, pVM->vmm.s.pRCRelLoggerR3);
314	}
315	#endif /* VBOX_WITH_RC_RELEASE_LOGGING */
316	return VINF_SUCCESS;
317	}
318
319
320	/**
321	* VMMR3Init worker that register the statistics with STAM.
322	*
323	* @param pVM The shared VM structure.
324	*/
325	static void vmmR3InitRegisterStats(PVM pVM)
326	{
327	/*
328	* Statistics.
329	*/
330	STAM_REG(pVM, &pVM->vmm.s.StatRunRC, STAMTYPE_COUNTER, "/VMM/RunRC", STAMUNIT_OCCURENCES, "Number of context switches.");
331	STAM_REG(pVM, &pVM->vmm.s.StatRZRetNormal, STAMTYPE_COUNTER, "/VMM/RZRet/Normal", STAMUNIT_OCCURENCES, "Number of VINF_SUCCESS returns.");
332	STAM_REG(pVM, &pVM->vmm.s.StatRZRetInterrupt, STAMTYPE_COUNTER, "/VMM/RZRet/Interrupt", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_INTERRUPT returns.");
333	STAM_REG(pVM, &pVM->vmm.s.StatRZRetInterruptHyper, STAMTYPE_COUNTER, "/VMM/RZRet/InterruptHyper", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_INTERRUPT_HYPER returns.");
334	STAM_REG(pVM, &pVM->vmm.s.StatRZRetGuestTrap, STAMTYPE_COUNTER, "/VMM/RZRet/GuestTrap", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_GUEST_TRAP returns.");
335	STAM_REG(pVM, &pVM->vmm.s.StatRZRetRingSwitch, STAMTYPE_COUNTER, "/VMM/RZRet/RingSwitch", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_RING_SWITCH returns.");
336	STAM_REG(pVM, &pVM->vmm.s.StatRZRetRingSwitchInt, STAMTYPE_COUNTER, "/VMM/RZRet/RingSwitchInt", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_RING_SWITCH_INT returns.");
337	STAM_REG(pVM, &pVM->vmm.s.StatRZRetExceptionPrivilege, STAMTYPE_COUNTER, "/VMM/RZRet/ExceptionPrivilege", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_EXCEPTION_PRIVILEGED returns.");
338	STAM_REG(pVM, &pVM->vmm.s.StatRZRetStaleSelector, STAMTYPE_COUNTER, "/VMM/RZRet/StaleSelector", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_STALE_SELECTOR returns.");
339	STAM_REG(pVM, &pVM->vmm.s.StatRZRetIRETTrap, STAMTYPE_COUNTER, "/VMM/RZRet/IRETTrap", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_IRET_TRAP returns.");
340	STAM_REG(pVM, &pVM->vmm.s.StatRZRetEmulate, STAMTYPE_COUNTER, "/VMM/RZRet/Emulate", STAMUNIT_OCCURENCES, "Number of VINF_EM_EXECUTE_INSTRUCTION returns.");
341	STAM_REG(pVM, &pVM->vmm.s.StatRZRetIOBlockEmulate, STAMTYPE_COUNTER, "/VMM/RZRet/EmulateIOBlock", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_EMULATE_IO_BLOCK returns.");
342	STAM_REG(pVM, &pVM->vmm.s.StatRZRetPatchEmulate, STAMTYPE_COUNTER, "/VMM/RZRet/PatchEmulate", STAMUNIT_OCCURENCES, "Number of VINF_PATCH_EMULATE_INSTR returns.");
343	STAM_REG(pVM, &pVM->vmm.s.StatRZRetIORead, STAMTYPE_COUNTER, "/VMM/RZRet/IORead", STAMUNIT_OCCURENCES, "Number of VINF_IOM_HC_IOPORT_READ returns.");
344	STAM_REG(pVM, &pVM->vmm.s.StatRZRetIOWrite, STAMTYPE_COUNTER, "/VMM/RZRet/IOWrite", STAMUNIT_OCCURENCES, "Number of VINF_IOM_HC_IOPORT_WRITE returns.");
345	STAM_REG(pVM, &pVM->vmm.s.StatRZRetMMIORead, STAMTYPE_COUNTER, "/VMM/RZRet/MMIORead", STAMUNIT_OCCURENCES, "Number of VINF_IOM_HC_MMIO_READ returns.");
346	STAM_REG(pVM, &pVM->vmm.s.StatRZRetMMIOWrite, STAMTYPE_COUNTER, "/VMM/RZRet/MMIOWrite", STAMUNIT_OCCURENCES, "Number of VINF_IOM_HC_MMIO_WRITE returns.");
347	STAM_REG(pVM, &pVM->vmm.s.StatRZRetMMIOReadWrite, STAMTYPE_COUNTER, "/VMM/RZRet/MMIOReadWrite", STAMUNIT_OCCURENCES, "Number of VINF_IOM_HC_MMIO_READ_WRITE returns.");
348	STAM_REG(pVM, &pVM->vmm.s.StatRZRetMMIOPatchRead, STAMTYPE_COUNTER, "/VMM/RZRet/MMIOPatchRead", STAMUNIT_OCCURENCES, "Number of VINF_IOM_HC_MMIO_PATCH_READ returns.");
349	STAM_REG(pVM, &pVM->vmm.s.StatRZRetMMIOPatchWrite, STAMTYPE_COUNTER, "/VMM/RZRet/MMIOPatchWrite", STAMUNIT_OCCURENCES, "Number of VINF_IOM_HC_MMIO_PATCH_WRITE returns.");
350	STAM_REG(pVM, &pVM->vmm.s.StatRZRetLDTFault, STAMTYPE_COUNTER, "/VMM/RZRet/LDTFault", STAMUNIT_OCCURENCES, "Number of VINF_EM_EXECUTE_INSTRUCTION_GDT_FAULT returns.");
351	STAM_REG(pVM, &pVM->vmm.s.StatRZRetGDTFault, STAMTYPE_COUNTER, "/VMM/RZRet/GDTFault", STAMUNIT_OCCURENCES, "Number of VINF_EM_EXECUTE_INSTRUCTION_LDT_FAULT returns.");
352	STAM_REG(pVM, &pVM->vmm.s.StatRZRetIDTFault, STAMTYPE_COUNTER, "/VMM/RZRet/IDTFault", STAMUNIT_OCCURENCES, "Number of VINF_EM_EXECUTE_INSTRUCTION_IDT_FAULT returns.");
353	STAM_REG(pVM, &pVM->vmm.s.StatRZRetTSSFault, STAMTYPE_COUNTER, "/VMM/RZRet/TSSFault", STAMUNIT_OCCURENCES, "Number of VINF_EM_EXECUTE_INSTRUCTION_TSS_FAULT returns.");
354	STAM_REG(pVM, &pVM->vmm.s.StatRZRetPDFault, STAMTYPE_COUNTER, "/VMM/RZRet/PDFault", STAMUNIT_OCCURENCES, "Number of VINF_EM_EXECUTE_INSTRUCTION_PD_FAULT returns.");
355	STAM_REG(pVM, &pVM->vmm.s.StatRZRetCSAMTask, STAMTYPE_COUNTER, "/VMM/RZRet/CSAMTask", STAMUNIT_OCCURENCES, "Number of VINF_CSAM_PENDING_ACTION returns.");
356	STAM_REG(pVM, &pVM->vmm.s.StatRZRetSyncCR3, STAMTYPE_COUNTER, "/VMM/RZRet/SyncCR", STAMUNIT_OCCURENCES, "Number of VINF_PGM_SYNC_CR3 returns.");
357	STAM_REG(pVM, &pVM->vmm.s.StatRZRetMisc, STAMTYPE_COUNTER, "/VMM/RZRet/Misc", STAMUNIT_OCCURENCES, "Number of misc returns.");
358	STAM_REG(pVM, &pVM->vmm.s.StatRZRetPatchInt3, STAMTYPE_COUNTER, "/VMM/RZRet/PatchInt3", STAMUNIT_OCCURENCES, "Number of VINF_PATM_PATCH_INT3 returns.");
359	STAM_REG(pVM, &pVM->vmm.s.StatRZRetPatchPF, STAMTYPE_COUNTER, "/VMM/RZRet/PatchPF", STAMUNIT_OCCURENCES, "Number of VINF_PATM_PATCH_TRAP_PF returns.");
360	STAM_REG(pVM, &pVM->vmm.s.StatRZRetPatchGP, STAMTYPE_COUNTER, "/VMM/RZRet/PatchGP", STAMUNIT_OCCURENCES, "Number of VINF_PATM_PATCH_TRAP_GP returns.");
361	STAM_REG(pVM, &pVM->vmm.s.StatRZRetPatchIretIRQ, STAMTYPE_COUNTER, "/VMM/RZRet/PatchIret", STAMUNIT_OCCURENCES, "Number of VINF_PATM_PENDING_IRQ_AFTER_IRET returns.");
362	STAM_REG(pVM, &pVM->vmm.s.StatRZRetRescheduleREM, STAMTYPE_COUNTER, "/VMM/RZRet/ScheduleREM", STAMUNIT_OCCURENCES, "Number of VINF_EM_RESCHEDULE_REM returns.");
363	STAM_REG(pVM, &pVM->vmm.s.StatRZRetToR3, STAMTYPE_COUNTER, "/VMM/RZRet/ToR3", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_TO_R3 returns.");
364	STAM_REG(pVM, &pVM->vmm.s.StatRZRetTimerPending, STAMTYPE_COUNTER, "/VMM/RZRet/TimerPending", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_TIMER_PENDING returns.");
365	STAM_REG(pVM, &pVM->vmm.s.StatRZRetInterruptPending, STAMTYPE_COUNTER, "/VMM/RZRet/InterruptPending", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_INTERRUPT_PENDING returns.");
366	STAM_REG(pVM, &pVM->vmm.s.StatRZRetPATMDuplicateFn, STAMTYPE_COUNTER, "/VMM/RZRet/PATMDuplicateFn", STAMUNIT_OCCURENCES, "Number of VINF_PATM_DUPLICATE_FUNCTION returns.");
367	STAM_REG(pVM, &pVM->vmm.s.StatRZRetPGMChangeMode, STAMTYPE_COUNTER, "/VMM/RZRet/PGMChangeMode", STAMUNIT_OCCURENCES, "Number of VINF_PGM_CHANGE_MODE returns.");
368	STAM_REG(pVM, &pVM->vmm.s.StatRZRetEmulHlt, STAMTYPE_COUNTER, "/VMM/RZRet/EmulHlt", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_EMULATE_INSTR_HLT returns.");
369	STAM_REG(pVM, &pVM->vmm.s.StatRZRetPendingRequest, STAMTYPE_COUNTER, "/VMM/RZRet/PendingRequest", STAMUNIT_OCCURENCES, "Number of VINF_EM_PENDING_REQUEST returns.");
370
371	STAM_REG(pVM, &pVM->vmm.s.StatRZRetCallHost, STAMTYPE_COUNTER, "/VMM/RZCallR3/Misc", STAMUNIT_OCCURENCES, "Number of Other ring-3 calls.");
372	STAM_REG(pVM, &pVM->vmm.s.StatRZCallPDMLock, STAMTYPE_COUNTER, "/VMM/RZCallR3/PDMLock", STAMUNIT_OCCURENCES, "Number of VMMCALLHOST_PDM_LOCK calls.");
373	STAM_REG(pVM, &pVM->vmm.s.StatRZCallPDMQueueFlush, STAMTYPE_COUNTER, "/VMM/RZCallR3/PDMQueueFlush", STAMUNIT_OCCURENCES, "Number of VMMCALLHOST_PDM_QUEUE_FLUSH calls.");
374	STAM_REG(pVM, &pVM->vmm.s.StatRZCallPGMLock, STAMTYPE_COUNTER, "/VMM/RZCallR3/PGMLock", STAMUNIT_OCCURENCES, "Number of VMMCALLHOST_PGM_LOCK calls.");
375	STAM_REG(pVM, &pVM->vmm.s.StatRZCallPGMPoolGrow, STAMTYPE_COUNTER, "/VMM/RZCallR3/PGMPoolGrow", STAMUNIT_OCCURENCES, "Number of VMMCALLHOST_PGM_POOL_GROW calls.");
376	STAM_REG(pVM, &pVM->vmm.s.StatRZCallPGMMapChunk, STAMTYPE_COUNTER, "/VMM/RZCallR3/PGMMapChunk", STAMUNIT_OCCURENCES, "Number of VMMCALLHOST_PGM_MAP_CHUNK calls.");
377	STAM_REG(pVM, &pVM->vmm.s.StatRZCallPGMAllocHandy, STAMTYPE_COUNTER, "/VMM/RZCallR3/PGMAllocHandy", STAMUNIT_OCCURENCES, "Number of VMMCALLHOST_PGM_ALLOCATE_HANDY_PAGES calls.");
378	STAM_REG(pVM, &pVM->vmm.s.StatRZCallRemReplay, STAMTYPE_COUNTER, "/VMM/RZCallR3/REMReplay", STAMUNIT_OCCURENCES, "Number of VMMCALLHOST_REM_REPLAY_HANDLER_NOTIFICATIONS calls.");
379	STAM_REG(pVM, &pVM->vmm.s.StatRZCallLogFlush, STAMTYPE_COUNTER, "/VMM/RZCallR3/VMMLogFlush", STAMUNIT_OCCURENCES, "Number of VMMCALLHOST_VMM_LOGGER_FLUSH calls.");
380	STAM_REG(pVM, &pVM->vmm.s.StatRZCallVMSetError, STAMTYPE_COUNTER, "/VMM/RZCallR3/VMSetError", STAMUNIT_OCCURENCES, "Number of VMMCALLHOST_VM_SET_ERROR calls.");
381	STAM_REG(pVM, &pVM->vmm.s.StatRZCallVMSetRuntimeError, STAMTYPE_COUNTER, "/VMM/RZCallR3/VMRuntimeError", STAMUNIT_OCCURENCES, "Number of VMMCALLHOST_VM_SET_RUNTIME_ERROR calls.");
382
383	#ifdef VBOX_WITH_STATISTICS
384	for (VMCPUID i = 0; i < pVM->cCPUs; i++)
385	{
386	STAMR3RegisterF(pVM, &pVM->aCpus[i].vmm.s.CallHostR0JmpBuf.cbUsedMax, STAMTYPE_U32_RESET, STAMVISIBILITY_ALWAYS, STAMUNIT_BYTES, "Max amount of stack used.", "/VMM/Stack/CPU%u/Max", i);
387	STAMR3RegisterF(pVM, &pVM->aCpus[i].vmm.s.CallHostR0JmpBuf.cbUsedAvg, STAMTYPE_U32, STAMVISIBILITY_ALWAYS, STAMUNIT_BYTES, "Average stack usage.", "/VMM/Stack/CPU%u/Avg", i);
388	STAMR3RegisterF(pVM, &pVM->aCpus[i].vmm.s.CallHostR0JmpBuf.cUsedTotal, STAMTYPE_U64, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of stack usages.", "/VMM/Stack/CPU%u/Uses", i);
389	}
390	#endif
391	}
392
393
394	/**
395	* Initializes the per-VCPU VMM.
396	*
397	* @returns VBox status code.
398	* @param pVM The VM to operate on.
399	*/
400	VMMR3DECL(int) VMMR3InitCPU(PVM pVM)
401	{
402	LogFlow(("VMMR3InitCPU\n"));
403	return VINF_SUCCESS;
404	}
405
406
407	/**
408	* Ring-3 init finalizing.
409	*
410	* @returns VBox status code.
411	* @param pVM The VM handle.
412	*/
413	VMMR3DECL(int) VMMR3InitFinalize(PVM pVM)
414	{
415	int rc = VINF_SUCCESS;
416
417	for (VMCPUID idCpu = 0; idCpu < pVM->cCPUs; idCpu++)
418	{
419	PVMCPU pVCpu = &pVM->aCpus[idCpu];
420
421	#ifdef VBOX_STRICT_VMM_STACK
422	/*
423	* Two inaccessible pages at each sides of the stack to catch over/under-flows.
424	*/
425	memset(pVCpu->vmm.s.pbEMTStackR3 - PAGE_SIZE, 0xcc, PAGE_SIZE);
426	MMR3HyperSetGuard(pVM, pVCpu->vmm.s.pbEMTStackR3 - PAGE_SIZE, PAGE_SIZE, true /fSet/);
427
428	memset(pVCpu->vmm.s.pbEMTStackR3 + VMM_STACK_SIZE, 0xcc, PAGE_SIZE);
429	MMR3HyperSetGuard(pVM, pVCpu->vmm.s.pbEMTStackR3 + VMM_STACK_SIZE, PAGE_SIZE, true /fSet/);
430	#endif
431
432	/*
433	* Set page attributes to r/w for stack pages.
434	*/
435	rc = PGMMapSetPage(pVM, pVCpu->vmm.s.pbEMTStackRC, VMM_STACK_SIZE, X86_PTE_P \| X86_PTE_A \| X86_PTE_D \| X86_PTE_RW);
436	AssertRC(rc);
437	if (RT_FAILURE(rc))
438	break;
439	}
440	if (RT_SUCCESS(rc))
441	{
442	/*
443	* Create the EMT yield timer.
444	*/
445	rc = TMR3TimerCreateInternal(pVM, TMCLOCK_REAL, vmmR3YieldEMT, NULL, "EMT Yielder", &pVM->vmm.s.pYieldTimer);
446	if (RT_SUCCESS(rc))
447	rc = TMTimerSetMillies(pVM->vmm.s.pYieldTimer, pVM->vmm.s.cYieldEveryMillies);
448	}
449
450	#ifdef VBOX_WITH_NMI
451	/*
452	* Map the host APIC into GC - This is AMD/Intel + Host OS specific!
453	*/
454	if (RT_SUCCESS(rc))
455	rc = PGMMap(pVM, pVM->vmm.s.GCPtrApicBase, 0xfee00000, PAGE_SIZE,
456	X86_PTE_P \| X86_PTE_RW \| X86_PTE_PWT \| X86_PTE_PCD \| X86_PTE_A \| X86_PTE_D);
457	#endif
458	return rc;
459	}
460
461
462	/**
463	* Initializes the R0 VMM.
464	*
465	* @returns VBox status code.
466	* @param pVM The VM to operate on.
467	*/
468	VMMR3DECL(int) VMMR3InitR0(PVM pVM)
469	{
470	int rc;
471	PVMCPU pVCpu = VMMGetCpu(pVM);
472	Assert(pVCpu && pVCpu->idCpu == 0);
473
474	#ifdef LOG_ENABLED
475	/*
476	* Initialize the ring-0 logger if we haven't done so yet.
477	*/
478	if ( pVCpu->vmm.s.pR0LoggerR3
479	&& !pVCpu->vmm.s.pR0LoggerR3->fCreated)
480	{
481	rc = VMMR3UpdateLoggers(pVM);
482	if (RT_FAILURE(rc))
483	return rc;
484	}
485	#endif
486
487	/*
488	* Call Ring-0 entry with init code.
489	*/
490	for (;;)
491	{
492	#ifdef NO_SUPCALLR0VMM
493	//rc = VERR_GENERAL_FAILURE;
494	rc = VINF_SUCCESS;
495	#else
496	rc = SUPCallVMMR0Ex(pVM->pVMR0, 0 /* VCPU 0 */, VMMR0_DO_VMMR0_INIT, VMMGetSvnRev(), NULL);
497	#endif
498	/*
499	* Flush the logs.
500	*/
501	#ifdef LOG_ENABLED
502	if ( pVCpu->vmm.s.pR0LoggerR3
503	&& pVCpu->vmm.s.pR0LoggerR3->Logger.offScratch > 0)
504	RTLogFlushToLogger(&pVCpu->vmm.s.pR0LoggerR3->Logger, NULL);
505	#endif
506	if (rc != VINF_VMM_CALL_HOST)
507	break;
508	rc = vmmR3ServiceCallHostRequest(pVM, pVCpu);
509	if (RT_FAILURE(rc) \|\| (rc >= VINF_EM_FIRST && rc <= VINF_EM_LAST))
510	break;
511	/* Resume R0 */
512	}
513
514	if (RT_FAILURE(rc) \|\| (rc >= VINF_EM_FIRST && rc <= VINF_EM_LAST))
515	{
516	LogRel(("R0 init failed, rc=%Rra\n", rc));
517	if (RT_SUCCESS(rc))
518	rc = VERR_INTERNAL_ERROR;
519	}
520	return rc;
521	}
522
523
524	/**
525	* Initializes the RC VMM.
526	*
527	* @returns VBox status code.
528	* @param pVM The VM to operate on.
529	*/
530	VMMR3DECL(int) VMMR3InitRC(PVM pVM)
531	{
532	PVMCPU pVCpu = VMMGetCpu(pVM);
533	Assert(pVCpu && pVCpu->idCpu == 0);
534
535	/* In VMX mode, there's no need to init RC. */
536	if (pVM->vmm.s.fSwitcherDisabled)
537	return VINF_SUCCESS;
538
539	AssertReturn(pVM->cCPUs == 1, VERR_RAW_MODE_INVALID_SMP);
540
541	/*
542	* Call VMMGCInit():
543	* -# resolve the address.
544	* -# setup stackframe and EIP to use the trampoline.
545	* -# do a generic hypervisor call.
546	*/
547	RTRCPTR RCPtrEP;
548	int rc = PDMR3LdrGetSymbolRC(pVM, VMMGC_MAIN_MODULE_NAME, "VMMGCEntry", &RCPtrEP);
549	if (RT_SUCCESS(rc))
550	{
551	CPUMHyperSetCtxCore(pVCpu, NULL);
552	CPUMSetHyperESP(pVCpu, pVCpu->vmm.s.pbEMTStackBottomRC); /* Clear the stack. */
553	uint64_t u64TS = RTTimeProgramStartNanoTS();
554	CPUMPushHyper(pVCpu, (uint32_t)(u64TS >> 32)); /* Param 3: The program startup TS - Hi. */
555	CPUMPushHyper(pVCpu, (uint32_t)u64TS); /* Param 3: The program startup TS - Lo. */
556	CPUMPushHyper(pVCpu, VMMGetSvnRev()); /* Param 2: Version argument. */
557	CPUMPushHyper(pVCpu, VMMGC_DO_VMMGC_INIT); /* Param 1: Operation. */
558	CPUMPushHyper(pVCpu, pVM->pVMRC); /* Param 0: pVM */
559	CPUMPushHyper(pVCpu, 5 * sizeof(RTRCPTR)); /* trampoline param: stacksize. */
560	CPUMPushHyper(pVCpu, RCPtrEP); /* Call EIP. */
561	CPUMSetHyperEIP(pVCpu, pVM->vmm.s.pfnCallTrampolineRC);
562	Assert(CPUMGetHyperCR3(pVCpu) && CPUMGetHyperCR3(pVCpu) == PGMGetHyperCR3(pVCpu));
563
564	for (;;)
565	{
566	#ifdef NO_SUPCALLR0VMM
567	//rc = VERR_GENERAL_FAILURE;
568	rc = VINF_SUCCESS;
569	#else
570	rc = SUPCallVMMR0(pVM->pVMR0, 0 /* VCPU 0 */, VMMR0_DO_CALL_HYPERVISOR, NULL);
571	#endif
572	#ifdef LOG_ENABLED
573	PRTLOGGERRC pLogger = pVM->vmm.s.pRCLoggerR3;
574	if ( pLogger
575	&& pLogger->offScratch > 0)
576	RTLogFlushRC(NULL, pLogger);
577	#endif
578	#ifdef VBOX_WITH_RC_RELEASE_LOGGING
579	PRTLOGGERRC pRelLogger = pVM->vmm.s.pRCRelLoggerR3;
580	if (RT_UNLIKELY(pRelLogger && pRelLogger->offScratch > 0))
581	RTLogFlushRC(RTLogRelDefaultInstance(), pRelLogger);
582	#endif
583	if (rc != VINF_VMM_CALL_HOST)
584	break;
585	rc = vmmR3ServiceCallHostRequest(pVM, pVCpu);
586	if (RT_FAILURE(rc) \|\| (rc >= VINF_EM_FIRST && rc <= VINF_EM_LAST))
587	break;
588	}
589
590	if (RT_FAILURE(rc) \|\| (rc >= VINF_EM_FIRST && rc <= VINF_EM_LAST))
591	{
592	VMMR3FatalDump(pVM, pVCpu, rc);
593	if (rc >= VINF_EM_FIRST && rc <= VINF_EM_LAST)
594	rc = VERR_INTERNAL_ERROR;
595	}
596	AssertRC(rc);
597	}
598	return rc;
599	}
600
601
602	/**
603	* Terminate the VMM bits.
604	*
605	* @returns VINF_SUCCESS.
606	* @param pVM The VM handle.
607	*/
608	VMMR3DECL(int) VMMR3Term(PVM pVM)
609	{
610	PVMCPU pVCpu = VMMGetCpu(pVM);
611	Assert(pVCpu && pVCpu->idCpu == 0);
612
613	/*
614	* Call Ring-0 entry with termination code.
615	*/
616	int rc;
617	for (;;)
618	{
619	#ifdef NO_SUPCALLR0VMM
620	//rc = VERR_GENERAL_FAILURE;
621	rc = VINF_SUCCESS;
622	#else
623	rc = SUPCallVMMR0Ex(pVM->pVMR0, 0 /* VCPU 0 */, VMMR0_DO_VMMR0_TERM, 0, NULL);
624	#endif
625	/*
626	* Flush the logs.
627	*/
628	#ifdef LOG_ENABLED
629	if ( pVCpu->vmm.s.pR0LoggerR3
630	&& pVCpu->vmm.s.pR0LoggerR3->Logger.offScratch > 0)
631	RTLogFlushToLogger(&pVCpu->vmm.s.pR0LoggerR3->Logger, NULL);
632	#endif
633	if (rc != VINF_VMM_CALL_HOST)
634	break;
635	rc = vmmR3ServiceCallHostRequest(pVM, pVCpu);
636	if (RT_FAILURE(rc) \|\| (rc >= VINF_EM_FIRST && rc <= VINF_EM_LAST))
637	break;
638	/* Resume R0 */
639	}
640	if (RT_FAILURE(rc) \|\| (rc >= VINF_EM_FIRST && rc <= VINF_EM_LAST))
641	{
642	LogRel(("VMMR3Term: R0 term failed, rc=%Rra. (warning)\n", rc));
643	if (RT_SUCCESS(rc))
644	rc = VERR_INTERNAL_ERROR;
645	}
646
647	RTCritSectDelete(&pVM->vmm.s.CritSectSync);
648
649	#ifdef VBOX_STRICT_VMM_STACK
650	/*
651	* Make the two stack guard pages present again.
652	*/
653	for (VMCPUID i = 0; i < pVM->cCPUs; i++)
654	{
655	RTMemProtect(pVM->aCpus[i].vmm.s.pbEMTStackR3 - PAGE_SIZE, PAGE_SIZE, RTMEM_PROT_READ \| RTMEM_PROT_WRITE);
656	RTMemProtect(pVM->aCpus[i].vmm.s.pbEMTStackR3 + VMM_STACK_SIZE, PAGE_SIZE, RTMEM_PROT_READ \| RTMEM_PROT_WRITE);
657	}
658	#endif
659	return rc;
660	}
661
662
663	/**
664	* Terminates the per-VCPU VMM.
665	*
666	* Termination means cleaning up and freeing all resources,
667	* the VM it self is at this point powered off or suspended.
668	*
669	* @returns VBox status code.
670	* @param pVM The VM to operate on.
671	*/
672	VMMR3DECL(int) VMMR3TermCPU(PVM pVM)
673	{
674	return VINF_SUCCESS;
675	}
676
677
678	/**
679	* Applies relocations to data and code managed by this
680	* component. This function will be called at init and
681	* whenever the VMM need to relocate it self inside the GC.
682	*
683	* The VMM will need to apply relocations to the core code.
684	*
685	* @param pVM The VM handle.
686	* @param offDelta The relocation delta.
687	*/
688	VMMR3DECL(void) VMMR3Relocate(PVM pVM, RTGCINTPTR offDelta)
689	{
690	LogFlow(("VMMR3Relocate: offDelta=%RGv\n", offDelta));
691
692	/*
693	* Recalc the RC address.
694	*/
695	pVM->vmm.s.pvCoreCodeRC = MMHyperR3ToRC(pVM, pVM->vmm.s.pvCoreCodeR3);
696
697	/*
698	* The stack.
699	*/
700	for (VMCPUID i = 0; i < pVM->cCPUs; i++)
701	{
702	PVMCPU pVCpu = &pVM->aCpus[i];
703
704	CPUMSetHyperESP(pVCpu, CPUMGetHyperESP(pVCpu) + offDelta);
705
706	pVCpu->vmm.s.pbEMTStackRC = MMHyperR3ToRC(pVM, pVCpu->vmm.s.pbEMTStackR3);
707	pVCpu->vmm.s.pbEMTStackBottomRC = pVCpu->vmm.s.pbEMTStackRC + VMM_STACK_SIZE;
708	}
709
710	/*
711	* All the switchers.
712	*/
713	vmmR3SwitcherRelocate(pVM, offDelta);
714
715	/*
716	* Get other RC entry points.
717	*/
718	int rc = PDMR3LdrGetSymbolRC(pVM, VMMGC_MAIN_MODULE_NAME, "CPUMGCResumeGuest", &pVM->vmm.s.pfnCPUMRCResumeGuest);
719	AssertReleaseMsgRC(rc, ("CPUMGCResumeGuest not found! rc=%Rra\n", rc));
720
721	rc = PDMR3LdrGetSymbolRC(pVM, VMMGC_MAIN_MODULE_NAME, "CPUMGCResumeGuestV86", &pVM->vmm.s.pfnCPUMRCResumeGuestV86);
722	AssertReleaseMsgRC(rc, ("CPUMGCResumeGuestV86 not found! rc=%Rra\n", rc));
723
724	/*
725	* Update the logger.
726	*/
727	VMMR3UpdateLoggers(pVM);
728	}
729
730
731	/**
732	* Updates the settings for the RC and R0 loggers.
733	*
734	* @returns VBox status code.
735	* @param pVM The VM handle.
736	*/
737	VMMR3DECL(int) VMMR3UpdateLoggers(PVM pVM)
738	{
739	/*
740	* Simply clone the logger instance (for RC).
741	*/
742	int rc = VINF_SUCCESS;
743	RTRCPTR RCPtrLoggerFlush = 0;
744
745	if (pVM->vmm.s.pRCLoggerR3
746	#ifdef VBOX_WITH_RC_RELEASE_LOGGING
747	\|\| pVM->vmm.s.pRCRelLoggerR3
748	#endif
749	)
750	{
751	rc = PDMR3LdrGetSymbolRC(pVM, VMMGC_MAIN_MODULE_NAME, "vmmGCLoggerFlush", &RCPtrLoggerFlush);
752	AssertReleaseMsgRC(rc, ("vmmGCLoggerFlush not found! rc=%Rra\n", rc));
753	}
754
755	if (pVM->vmm.s.pRCLoggerR3)
756	{
757	RTRCPTR RCPtrLoggerWrapper = 0;
758	rc = PDMR3LdrGetSymbolRC(pVM, VMMGC_MAIN_MODULE_NAME, "vmmGCLoggerWrapper", &RCPtrLoggerWrapper);
759	AssertReleaseMsgRC(rc, ("vmmGCLoggerWrapper not found! rc=%Rra\n", rc));
760
761	pVM->vmm.s.pRCLoggerRC = MMHyperR3ToRC(pVM, pVM->vmm.s.pRCLoggerR3);
762	rc = RTLogCloneRC(NULL /* default */, pVM->vmm.s.pRCLoggerR3, pVM->vmm.s.cbRCLogger,
763	RCPtrLoggerWrapper, RCPtrLoggerFlush, RTLOGFLAGS_BUFFERED);
764	AssertReleaseMsgRC(rc, ("RTLogCloneRC failed! rc=%Rra\n", rc));
765	}
766
767	#ifdef VBOX_WITH_RC_RELEASE_LOGGING
768	if (pVM->vmm.s.pRCRelLoggerR3)
769	{
770	RTRCPTR RCPtrLoggerWrapper = 0;
771	rc = PDMR3LdrGetSymbolRC(pVM, VMMGC_MAIN_MODULE_NAME, "vmmGCRelLoggerWrapper", &RCPtrLoggerWrapper);
772	AssertReleaseMsgRC(rc, ("vmmGCRelLoggerWrapper not found! rc=%Rra\n", rc));
773
774	pVM->vmm.s.pRCRelLoggerRC = MMHyperR3ToRC(pVM, pVM->vmm.s.pRCRelLoggerR3);
775	rc = RTLogCloneRC(RTLogRelDefaultInstance(), pVM->vmm.s.pRCRelLoggerR3, pVM->vmm.s.cbRCRelLogger,
776	RCPtrLoggerWrapper, RCPtrLoggerFlush, RTLOGFLAGS_BUFFERED);
777	AssertReleaseMsgRC(rc, ("RTLogCloneRC failed! rc=%Rra\n", rc));
778	}
779	#endif /* VBOX_WITH_RC_RELEASE_LOGGING */
780
781	#ifdef LOG_ENABLED
782	/*
783	* For the ring-0 EMT logger, we use a per-thread logger instance
784	* in ring-0. Only initialize it once.
785	*/
786	for (unsigned i = 0; i < pVM->cCPUs; i++)
787	{
788	PVMCPU pVCpu = &pVM->aCpus[i];
789	PVMMR0LOGGER pR0LoggerR3 = pVCpu->vmm.s.pR0LoggerR3;
790	if (pR0LoggerR3)
791	{
792	if (!pR0LoggerR3->fCreated)
793	{
794	RTR0PTR pfnLoggerWrapper = NIL_RTR0PTR;
795	rc = PDMR3LdrGetSymbolR0(pVM, VMMR0_MAIN_MODULE_NAME, "vmmR0LoggerWrapper", &pfnLoggerWrapper);
796	AssertReleaseMsgRCReturn(rc, ("VMMLoggerWrapper not found! rc=%Rra\n", rc), rc);
797
798	RTR0PTR pfnLoggerFlush = NIL_RTR0PTR;
799	rc = PDMR3LdrGetSymbolR0(pVM, VMMR0_MAIN_MODULE_NAME, "vmmR0LoggerFlush", &pfnLoggerFlush);
800	AssertReleaseMsgRCReturn(rc, ("VMMLoggerFlush not found! rc=%Rra\n", rc), rc);
801
802	rc = RTLogCreateForR0(&pR0LoggerR3->Logger, pR0LoggerR3->cbLogger,
803	(PFNRTLOGGER )&pfnLoggerWrapper, (PFNRTLOGFLUSH )&pfnLoggerFlush,
804	RTLOGFLAGS_BUFFERED, RTLOGDEST_DUMMY);
805	AssertReleaseMsgRCReturn(rc, ("RTLogCreateForR0 failed! rc=%Rra\n", rc), rc);
806	pR0LoggerR3->fCreated = true;
807	pR0LoggerR3->fFlushingDisabled = false;
808	}
809
810	rc = RTLogCopyGroupsAndFlags(&pR0LoggerR3->Logger, NULL /* default */, pVM->vmm.s.pRCLoggerR3->fFlags, RTLOGFLAGS_BUFFERED);
811	AssertRC(rc);
812	}
813	}
814	#endif
815	return rc;
816	}
817
818
819	/**
820	* Gets the pointer to a buffer containing the R0/RC AssertMsg1 output.
821	*
822	* @returns Pointer to the buffer.
823	* @param pVM The VM handle.
824	*/
825	VMMR3DECL(const char *) VMMR3GetRZAssertMsg1(PVM pVM)
826	{
827	if (HWACCMIsEnabled(pVM))
828	return pVM->vmm.s.szRing0AssertMsg1;
829
830	RTRCPTR RCPtr;
831	int rc = PDMR3LdrGetSymbolRC(pVM, NULL, "g_szRTAssertMsg1", &RCPtr);
832	if (RT_SUCCESS(rc))
833	return (const char *)MMHyperRCToR3(pVM, RCPtr);
834
835	return NULL;
836	}
837
838
839	/**
840	* Gets the pointer to a buffer containing the R0/RC AssertMsg2 output.
841	*
842	* @returns Pointer to the buffer.
843	* @param pVM The VM handle.
844	*/
845	VMMR3DECL(const char *) VMMR3GetRZAssertMsg2(PVM pVM)
846	{
847	if (HWACCMIsEnabled(pVM))
848	return pVM->vmm.s.szRing0AssertMsg2;
849
850	RTRCPTR RCPtr;
851	int rc = PDMR3LdrGetSymbolRC(pVM, NULL, "g_szRTAssertMsg2", &RCPtr);
852	if (RT_SUCCESS(rc))
853	return (const char *)MMHyperRCToR3(pVM, RCPtr);
854
855	return NULL;
856	}
857
858
859	/**
860	* Execute state save operation.
861	*
862	* @returns VBox status code.
863	* @param pVM VM Handle.
864	* @param pSSM SSM operation handle.
865	*/
866	static DECLCALLBACK(int) vmmR3Save(PVM pVM, PSSMHANDLE pSSM)
867	{
868	LogFlow(("vmmR3Save:\n"));
869
870	/*
871	* The hypervisor stack.
872	* Note! See note in vmmR3Load (remove this on version change).
873	*/
874	PVMCPU pVCpu0 = &pVM->aCpus[0];
875	SSMR3PutRCPtr(pSSM, pVCpu0->vmm.s.pbEMTStackBottomRC);
876	RTRCPTR RCPtrESP = CPUMGetHyperESP(pVCpu0);
877	AssertMsg(pVCpu0->vmm.s.pbEMTStackBottomRC - RCPtrESP <= VMM_STACK_SIZE, ("Bottom %RRv ESP=%RRv\n", pVCpu0->vmm.s.pbEMTStackBottomRC, RCPtrESP));
878	SSMR3PutRCPtr(pSSM, RCPtrESP);
879	SSMR3PutMem(pSSM, pVCpu0->vmm.s.pbEMTStackR3, VMM_STACK_SIZE);
880
881	/*
882	* Save the started/stopped state of all CPUs except 0 as it will always
883	* be running. This avoids breaking the saved state version. :-)
884	*/
885	for (VMCPUID i = 1; i < pVM->cCPUs; i++)
886	SSMR3PutBool(pSSM, VMCPUSTATE_IS_STARTED(VMCPU_GET_STATE(&pVM->aCpus[i])));
887
888	return SSMR3PutU32(pSSM, ~0); /* terminator */
889	}
890
891
892	/**
893	* Execute state load operation.
894	*
895	* @returns VBox status code.
896	* @param pVM VM Handle.
897	* @param pSSM SSM operation handle.
898	* @param u32Version Data layout version.
899	*/
900	static DECLCALLBACK(int) vmmR3Load(PVM pVM, PSSMHANDLE pSSM, uint32_t u32Version)
901	{
902	LogFlow(("vmmR3Load:\n"));
903
904	/*
905	* Validate version.
906	*/
907	if (u32Version != VMM_SAVED_STATE_VERSION)
908	{
909	AssertMsgFailed(("vmmR3Load: Invalid version u32Version=%d!\n", u32Version));
910	return VERR_SSM_UNSUPPORTED_DATA_UNIT_VERSION;
911	}
912
913	/*
914	* Check that the stack is in the same place, or that it's fearly empty.
915	*
916	* Note! This can be skipped next time we update saved state as we will
917	* never be in a R0/RC -> ring-3 call when saving the state. The
918	* stack and the two associated pointers are not required.
919	*/
920	RTRCPTR RCPtrStackBottom;
921	SSMR3GetRCPtr(pSSM, &RCPtrStackBottom);
922	RTRCPTR RCPtrESP;
923	int rc = SSMR3GetRCPtr(pSSM, &RCPtrESP);
924	if (RT_FAILURE(rc))
925	return rc;
926	SSMR3GetMem(pSSM, pVM->aCpus[0].vmm.s.pbEMTStackR3, VMM_STACK_SIZE);
927
928	/* Restore the VMCPU states. VCPU 0 is always started. */
929	VMCPU_SET_STATE(&pVM->aCpus[0], VMCPUSTATE_STARTED);
930	for (VMCPUID i = 1; i < pVM->cCPUs; i++)
931	{
932	bool fStarted;
933	rc = SSMR3GetBool(pSSM, &fStarted);
934	if (RT_FAILURE(rc))
935	return rc;
936	VMCPU_SET_STATE(&pVM->aCpus[i], fStarted ? VMCPUSTATE_STARTED : VMCPUSTATE_STOPPED);
937	}
938
939	/* terminator */
940	uint32_t u32;
941	rc = SSMR3GetU32(pSSM, &u32);
942	if (RT_FAILURE(rc))
943	return rc;
944	if (u32 != ~0U)
945	{
946	AssertMsgFailed(("u32=%#x\n", u32));
947	return VERR_SSM_DATA_UNIT_FORMAT_CHANGED;
948	}
949	return VINF_SUCCESS;
950	}
951
952
953	/**
954	* Resolve a builtin RC symbol.
955	*
956	* Called by PDM when loading or relocating RC modules.
957	*
958	* @returns VBox status
959	* @param pVM VM Handle.
960	* @param pszSymbol Symbol to resolv
961	* @param pRCPtrValue Where to store the symbol value.
962	*
963	* @remark This has to work before VMMR3Relocate() is called.
964	*/
965	VMMR3DECL(int) VMMR3GetImportRC(PVM pVM, const char *pszSymbol, PRTRCPTR pRCPtrValue)
966	{
967	if (!strcmp(pszSymbol, "g_Logger"))
968	{
969	if (pVM->vmm.s.pRCLoggerR3)
970	pVM->vmm.s.pRCLoggerRC = MMHyperR3ToRC(pVM, pVM->vmm.s.pRCLoggerR3);
971	*pRCPtrValue = pVM->vmm.s.pRCLoggerRC;
972	}
973	else if (!strcmp(pszSymbol, "g_RelLogger"))
974	{
975	#ifdef VBOX_WITH_RC_RELEASE_LOGGING
976	if (pVM->vmm.s.pRCRelLoggerR3)
977	pVM->vmm.s.pRCRelLoggerRC = MMHyperR3ToRC(pVM, pVM->vmm.s.pRCRelLoggerR3);
978	*pRCPtrValue = pVM->vmm.s.pRCRelLoggerRC;
979	#else
980	*pRCPtrValue = NIL_RTRCPTR;
981	#endif
982	}
983	else
984	return VERR_SYMBOL_NOT_FOUND;
985	return VINF_SUCCESS;
986	}
987
988
989	/**
990	* Suspends the CPU yielder.
991	*
992	* @param pVM The VM handle.
993	*/
994	VMMR3DECL(void) VMMR3YieldSuspend(PVM pVM)
995	{
996	VMCPU_ASSERT_EMT(&pVM->aCpus[0]);
997	if (!pVM->vmm.s.cYieldResumeMillies)
998	{
999	uint64_t u64Now = TMTimerGet(pVM->vmm.s.pYieldTimer);
1000	uint64_t u64Expire = TMTimerGetExpire(pVM->vmm.s.pYieldTimer);
1001	if (u64Now >= u64Expire \|\| u64Expire == ~(uint64_t)0)
1002	pVM->vmm.s.cYieldResumeMillies = pVM->vmm.s.cYieldEveryMillies;
1003	else
1004	pVM->vmm.s.cYieldResumeMillies = TMTimerToMilli(pVM->vmm.s.pYieldTimer, u64Expire - u64Now);
1005	TMTimerStop(pVM->vmm.s.pYieldTimer);
1006	}
1007	pVM->vmm.s.u64LastYield = RTTimeNanoTS();
1008	}
1009
1010
1011	/**
1012	* Stops the CPU yielder.
1013	*
1014	* @param pVM The VM handle.
1015	*/
1016	VMMR3DECL(void) VMMR3YieldStop(PVM pVM)
1017	{
1018	if (!pVM->vmm.s.cYieldResumeMillies)
1019	TMTimerStop(pVM->vmm.s.pYieldTimer);
1020	pVM->vmm.s.cYieldResumeMillies = pVM->vmm.s.cYieldEveryMillies;
1021	pVM->vmm.s.u64LastYield = RTTimeNanoTS();
1022	}
1023
1024
1025	/**
1026	* Resumes the CPU yielder when it has been a suspended or stopped.
1027	*
1028	* @param pVM The VM handle.
1029	*/
1030	VMMR3DECL(void) VMMR3YieldResume(PVM pVM)
1031	{
1032	if (pVM->vmm.s.cYieldResumeMillies)
1033	{
1034	TMTimerSetMillies(pVM->vmm.s.pYieldTimer, pVM->vmm.s.cYieldResumeMillies);
1035	pVM->vmm.s.cYieldResumeMillies = 0;
1036	}
1037	}
1038
1039
1040	/**
1041	* Internal timer callback function.
1042	*
1043	* @param pVM The VM.
1044	* @param pTimer The timer handle.
1045	* @param pvUser User argument specified upon timer creation.
1046	*/
1047	static DECLCALLBACK(void) vmmR3YieldEMT(PVM pVM, PTMTIMER pTimer, void *pvUser)
1048	{
1049	/*
1050	* This really needs some careful tuning. While we shouldn't be too greedy since
1051	* that'll cause the rest of the system to stop up, we shouldn't be too nice either
1052	* because that'll cause us to stop up.
1053	*
1054	* The current logic is to use the default interval when there is no lag worth
1055	* mentioning, but when we start accumulating lag we don't bother yielding at all.
1056	*
1057	* (This depends on the TMCLOCK_VIRTUAL_SYNC to be scheduled before TMCLOCK_REAL
1058	* so the lag is up to date.)
1059	*/
1060	const uint64_t u64Lag = TMVirtualSyncGetLag(pVM);
1061	if ( u64Lag < 50000000 /* 50ms */
1062	\|\| ( u64Lag < 1000000000 /* 1s */
1063	&& RTTimeNanoTS() - pVM->vmm.s.u64LastYield < 500000000 /* 500 ms */)
1064	)
1065	{
1066	uint64_t u64Elapsed = RTTimeNanoTS();
1067	pVM->vmm.s.u64LastYield = u64Elapsed;
1068
1069	RTThreadYield();
1070
1071	#ifdef LOG_ENABLED
1072	u64Elapsed = RTTimeNanoTS() - u64Elapsed;
1073	Log(("vmmR3YieldEMT: %RI64 ns\n", u64Elapsed));
1074	#endif
1075	}
1076	TMTimerSetMillies(pTimer, pVM->vmm.s.cYieldEveryMillies);
1077	}
1078
1079
1080	/**
1081	* Executes guest code in the raw-mode context.
1082	*
1083	* @param pVM VM handle.
1084	* @param pVCpu The VMCPU to operate on.
1085	*/
1086	VMMR3DECL(int) VMMR3RawRunGC(PVM pVM, PVMCPU pVCpu)
1087	{
1088	Log2(("VMMR3RawRunGC: (cs:eip=%04x:%08x)\n", CPUMGetGuestCS(pVCpu), CPUMGetGuestEIP(pVCpu)));
1089
1090	AssertReturn(pVM->cCPUs == 1, VERR_RAW_MODE_INVALID_SMP);
1091
1092	/*
1093	* Set the EIP and ESP.
1094	*/
1095	CPUMSetHyperEIP(pVCpu, CPUMGetGuestEFlags(pVCpu) & X86_EFL_VM
1096	? pVM->vmm.s.pfnCPUMRCResumeGuestV86
1097	: pVM->vmm.s.pfnCPUMRCResumeGuest);
1098	CPUMSetHyperESP(pVCpu, pVCpu->vmm.s.pbEMTStackBottomRC);
1099
1100	/*
1101	* We hide log flushes (outer) and hypervisor interrupts (inner).
1102	*/
1103	for (;;)
1104	{
1105	Assert(CPUMGetHyperCR3(pVCpu) && CPUMGetHyperCR3(pVCpu) == PGMGetHyperCR3(pVCpu));
1106	#ifdef VBOX_STRICT
1107	PGMMapCheck(pVM);
1108	#endif
1109	int rc;
1110	do
1111	{
1112	#ifdef NO_SUPCALLR0VMM
1113	rc = VERR_GENERAL_FAILURE;
1114	#else
1115	rc = SUPCallVMMR0Fast(pVM->pVMR0, VMMR0_DO_RAW_RUN, 0);
1116	if (RT_LIKELY(rc == VINF_SUCCESS))
1117	rc = pVCpu->vmm.s.iLastGZRc;
1118	#endif
1119	} while (rc == VINF_EM_RAW_INTERRUPT_HYPER);
1120
1121	/*
1122	* Flush the logs.
1123	*/
1124	#ifdef LOG_ENABLED
1125	PRTLOGGERRC pLogger = pVM->vmm.s.pRCLoggerR3;
1126	if ( pLogger
1127	&& pLogger->offScratch > 0)
1128	RTLogFlushRC(NULL, pLogger);
1129	#endif
1130	#ifdef VBOX_WITH_RC_RELEASE_LOGGING
1131	PRTLOGGERRC pRelLogger = pVM->vmm.s.pRCRelLoggerR3;
1132	if (RT_UNLIKELY(pRelLogger && pRelLogger->offScratch > 0))
1133	RTLogFlushRC(RTLogRelDefaultInstance(), pRelLogger);
1134	#endif
1135	if (rc != VINF_VMM_CALL_HOST)
1136	{
1137	Log2(("VMMR3RawRunGC: returns %Rrc (cs:eip=%04x:%08x)\n", rc, CPUMGetGuestCS(pVCpu), CPUMGetGuestEIP(pVCpu)));
1138	return rc;
1139	}
1140	rc = vmmR3ServiceCallHostRequest(pVM, pVCpu);
1141	if (RT_FAILURE(rc))
1142	return rc;
1143	/* Resume GC */
1144	}
1145	}
1146
1147
1148	/**
1149	* Executes guest code (Intel VT-x and AMD-V).
1150	*
1151	* @param pVM VM handle.
1152	* @param pVCpu The VMCPU to operate on.
1153	*/
1154	VMMR3DECL(int) VMMR3HwAccRunGC(PVM pVM, PVMCPU pVCpu)
1155	{
1156	Log2(("VMMR3HwAccRunGC: (cs:eip=%04x:%08x)\n", CPUMGetGuestCS(pVCpu), CPUMGetGuestEIP(pVCpu)));
1157
1158	for (;;)
1159	{
1160	int rc;
1161	do
1162	{
1163	#ifdef NO_SUPCALLR0VMM
1164	rc = VERR_GENERAL_FAILURE;
1165	#else
1166	rc = SUPCallVMMR0Fast(pVM->pVMR0, VMMR0_DO_HWACC_RUN, pVCpu->idCpu);
1167	if (RT_LIKELY(rc == VINF_SUCCESS))
1168	rc = pVCpu->vmm.s.iLastGZRc;
1169	#endif
1170	} while (rc == VINF_EM_RAW_INTERRUPT_HYPER);
1171
1172	#ifdef LOG_ENABLED
1173	/*
1174	* Flush the log
1175	*/
1176	PVMMR0LOGGER pR0LoggerR3 = pVCpu->vmm.s.pR0LoggerR3;
1177	if ( pR0LoggerR3
1178	&& pR0LoggerR3->Logger.offScratch > 0)
1179	RTLogFlushToLogger(&pR0LoggerR3->Logger, NULL);
1180	#endif /* !LOG_ENABLED */
1181	if (rc != VINF_VMM_CALL_HOST)
1182	{
1183	Log2(("VMMR3HwAccRunGC: returns %Rrc (cs:eip=%04x:%08x)\n", rc, CPUMGetGuestCS(pVCpu), CPUMGetGuestEIP(pVCpu)));
1184	return rc;
1185	}
1186	rc = vmmR3ServiceCallHostRequest(pVM, pVCpu);
1187	if (RT_FAILURE(rc))
1188	return rc;
1189	/* Resume R0 */
1190	}
1191	}
1192
1193	/**
1194	* VCPU worker for VMMSendSipi.
1195	*
1196	* @param pVM The VM to operate on.
1197	* @param idCpu Virtual CPU to perform SIPI on
1198	* @param uVector SIPI vector
1199	*/
1200	DECLCALLBACK(int) vmmR3SendSipi(PVM pVM, VMCPUID idCpu, uint32_t uVector)
1201	{
1202	PVMCPU pVCpu = VMMGetCpuById(pVM, idCpu);
1203	VMCPU_ASSERT_EMT(pVCpu);
1204
1205	/** @todo what are we supposed to do if the processor is already running? */
1206	if (EMGetState(pVCpu) != EMSTATE_WAIT_SIPI)
1207	return VERR_ACCESS_DENIED;
1208
1209
1210	PCPUMCTX pCtx = CPUMQueryGuestCtxPtr(pVCpu);
1211
1212	pCtx->cs = uVector << 8;
1213	pCtx->csHid.u64Base = uVector << 12;
1214	pCtx->csHid.u32Limit = 0x0000ffff;
1215	pCtx->rip = 0;
1216
1217	Log(("vmmR3SendSipi for VCPU %d with vector %x\n", uVector));
1218
1219	# if 1 /* If we keep the EMSTATE_WAIT_SIPI method, then move this to EM.cpp. */
1220	EMSetState(pVCpu, EMSTATE_HALTED);
1221	return VINF_EM_RESCHEDULE;
1222	# else /* And if we go the VMCPU::enmState way it can stay here. */
1223	VMCPU_ASSERT_STATE(pVCpu, VMCPUSTATE_STOPPED);
1224	VMCPU_SET_STATE(pVCpu, VMCPUSTATE_STARTED);
1225	return VINF_SUCCESS;
1226	# endif
1227	}
1228
1229	DECLCALLBACK(int) vmmR3SendInitIpi(PVM pVM, VMCPUID idCpu)
1230	{
1231	PVMCPU pVCpu = VMMGetCpuById(pVM, idCpu);
1232	VMCPU_ASSERT_EMT(pVCpu);
1233
1234	Log(("vmmR3SendInitIpi for VCPU %d\n", idCpu));
1235	CPUMR3ResetCpu(pVCpu);
1236	return VINF_EM_WAIT_SIPI;
1237	}
1238
1239	/**
1240	* Sends SIPI to the virtual CPU by setting CS:EIP into vector-dependent state
1241	* and unhalting processor
1242	*
1243	* @param pVM The VM to operate on.
1244	* @param idCpu Virtual CPU to perform SIPI on
1245	* @param uVector SIPI vector
1246	*/
1247	VMMR3DECL(void) VMMR3SendSipi(PVM pVM, VMCPUID idCpu, uint32_t uVector)
1248	{
1249	AssertReturnVoid(idCpu < pVM->cCPUs);
1250
1251	PVMREQ pReq;
1252	int rc = VMR3ReqCallU(pVM->pUVM, idCpu, &pReq, 0, VMREQFLAGS_NO_WAIT,
1253	(PFNRT)vmmR3SendSipi, 3, pVM, idCpu, uVector);
1254	AssertRC(rc);
1255	}
1256
1257	/**
1258	* Sends init IPI to the virtual CPU.
1259	*
1260	* @param pVM The VM to operate on.
1261	* @param idCpu Virtual CPU to perform int IPI on
1262	*/
1263	VMMR3DECL(void) VMMR3SendInitIpi(PVM pVM, VMCPUID idCpu)
1264	{
1265	AssertReturnVoid(idCpu < pVM->cCPUs);
1266
1267	PVMREQ pReq;
1268	int rc = VMR3ReqCallU(pVM->pUVM, idCpu, &pReq, 0, VMREQFLAGS_NO_WAIT,
1269	(PFNRT)vmmR3SendInitIpi, 2, pVM, idCpu);
1270	AssertRC(rc);
1271	}
1272
1273
1274	/**
1275	* VCPU worker for VMMR3SynchronizeAllVCpus.
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	DECLCALLBACK(int) vmmR3SyncVCpu(PVM pVM)
1282	{
1283	/* Block until the job in the caller has finished. */
1284	RTCritSectEnter(&pVM->vmm.s.CritSectSync);
1285	RTCritSectLeave(&pVM->vmm.s.CritSectSync);
1286	return VINF_SUCCESS;
1287	}
1288
1289
1290	/**
1291	* Atomically execute a callback handler
1292	* Note: This is very expensive; avoid using it frequently!
1293	*
1294	* @param pVM The VM to operate on.
1295	* @param pfnHandler Callback handler
1296	* @param pvUser User specified parameter
1297	*/
1298	VMMR3DECL(int) VMMR3AtomicExecuteHandler(PVM pVM, PFNATOMICHANDLER pfnHandler, void *pvUser)
1299	{
1300	int rc;
1301	PVMCPU pVCpu = VMMGetCpu(pVM);
1302	AssertReturn(pVCpu, VERR_VM_THREAD_NOT_EMT);
1303
1304	/* Shortcut for the uniprocessor case. */
1305	if (pVM->cCPUs == 1)
1306	return pfnHandler(pVM, pvUser);
1307
1308	RTCritSectEnter(&pVM->vmm.s.CritSectSync);
1309	for (VMCPUID idCpu = 0; idCpu < pVM->cCPUs; idCpu++)
1310	{
1311	if (idCpu != pVCpu->idCpu)
1312	{
1313	rc = VMR3ReqCallU(pVM->pUVM, idCpu, NULL, 0, VMREQFLAGS_NO_WAIT,
1314	(PFNRT)vmmR3SyncVCpu, 1, pVM);
1315	AssertRC(rc);
1316	}
1317	}
1318	/* Wait until all other VCPUs are waiting for us. */
1319	while (RTCritSectGetWaiters(&pVM->vmm.s.CritSectSync) != (int32_t)(pVM->cCPUs - 1))
1320	RTThreadSleep(1);
1321
1322	rc = pfnHandler(pVM, pvUser);
1323	RTCritSectLeave(&pVM->vmm.s.CritSectSync);
1324	return rc;
1325	}
1326
1327
1328	/**
1329	* Read from the ring 0 jump buffer stack
1330	*
1331	* @returns VBox status code.
1332	*
1333	* @param pVM Pointer to the shared VM structure.
1334	* @param idCpu The ID of the source CPU context (for the address).
1335	* @param pAddress Where to start reading.
1336	* @param pvBuf Where to store the data we've read.
1337	* @param cbRead The number of bytes to read.
1338	*/
1339	VMMR3DECL(int) VMMR3ReadR0Stack(PVM pVM, VMCPUID idCpu, RTHCUINTPTR pAddress, void *pvBuf, size_t cbRead)
1340	{
1341	PVMCPU pVCpu = VMMGetCpuById(pVM, idCpu);
1342	AssertReturn(pVCpu, VERR_INVALID_PARAMETER);
1343
1344	RTHCUINTPTR offset = pVCpu->vmm.s.CallHostR0JmpBuf.SpCheck - pAddress;
1345	if (offset >= pVCpu->vmm.s.CallHostR0JmpBuf.cbSavedStack)
1346	return VERR_INVALID_POINTER;
1347
1348	memcpy(pvBuf, pVCpu->vmm.s.pbEMTStackR3 + pVCpu->vmm.s.CallHostR0JmpBuf.cbSavedStack - offset, cbRead);
1349	return VINF_SUCCESS;
1350	}
1351
1352
1353	/**
1354	* Calls a RC function.
1355	*
1356	* @param pVM The VM handle.
1357	* @param RCPtrEntry The address of the RC function.
1358	* @param cArgs The number of arguments in the ....
1359	* @param ... Arguments to the function.
1360	*/
1361	VMMR3DECL(int) VMMR3CallRC(PVM pVM, RTRCPTR RCPtrEntry, unsigned cArgs, ...)
1362	{
1363	va_list args;
1364	va_start(args, cArgs);
1365	int rc = VMMR3CallRCV(pVM, RCPtrEntry, cArgs, args);
1366	va_end(args);
1367	return rc;
1368	}
1369
1370
1371	/**
1372	* Calls a RC function.
1373	*
1374	* @param pVM The VM handle.
1375	* @param RCPtrEntry The address of the RC function.
1376	* @param cArgs The number of arguments in the ....
1377	* @param args Arguments to the function.
1378	*/
1379	VMMR3DECL(int) VMMR3CallRCV(PVM pVM, RTRCPTR RCPtrEntry, unsigned cArgs, va_list args)
1380	{
1381	/* Raw mode implies 1 VCPU. */
1382	AssertReturn(pVM->cCPUs == 1, VERR_RAW_MODE_INVALID_SMP);
1383	PVMCPU pVCpu = &pVM->aCpus[0];
1384
1385	Log2(("VMMR3CallGCV: RCPtrEntry=%RRv cArgs=%d\n", RCPtrEntry, cArgs));
1386
1387	/*
1388	* Setup the call frame using the trampoline.
1389	*/
1390	CPUMHyperSetCtxCore(pVCpu, NULL);
1391	memset(pVCpu->vmm.s.pbEMTStackR3, 0xaa, VMM_STACK_SIZE); /* Clear the stack. */
1392	CPUMSetHyperESP(pVCpu, pVCpu->vmm.s.pbEMTStackBottomRC - cArgs * sizeof(RTGCUINTPTR32));
1393	PRTGCUINTPTR32 pFrame = (PRTGCUINTPTR32)(pVCpu->vmm.s.pbEMTStackR3 + VMM_STACK_SIZE) - cArgs;
1394	int i = cArgs;
1395	while (i-- > 0)
1396	*pFrame++ = va_arg(args, RTGCUINTPTR32);
1397
1398	CPUMPushHyper(pVCpu, cArgs * sizeof(RTGCUINTPTR32)); /* stack frame size */
1399	CPUMPushHyper(pVCpu, RCPtrEntry); /* what to call */
1400	CPUMSetHyperEIP(pVCpu, pVM->vmm.s.pfnCallTrampolineRC);
1401
1402	/*
1403	* We hide log flushes (outer) and hypervisor interrupts (inner).
1404	*/
1405	for (;;)
1406	{
1407	int rc;
1408	Assert(CPUMGetHyperCR3(pVCpu) && CPUMGetHyperCR3(pVCpu) == PGMGetHyperCR3(pVCpu));
1409	do
1410	{
1411	#ifdef NO_SUPCALLR0VMM
1412	rc = VERR_GENERAL_FAILURE;
1413	#else
1414	rc = SUPCallVMMR0Fast(pVM->pVMR0, VMMR0_DO_RAW_RUN, 0);
1415	if (RT_LIKELY(rc == VINF_SUCCESS))
1416	rc = pVCpu->vmm.s.iLastGZRc;
1417	#endif
1418	} while (rc == VINF_EM_RAW_INTERRUPT_HYPER);
1419
1420	/*
1421	* Flush the logs.
1422	*/
1423	#ifdef LOG_ENABLED
1424	PRTLOGGERRC pLogger = pVM->vmm.s.pRCLoggerR3;
1425	if ( pLogger
1426	&& pLogger->offScratch > 0)
1427	RTLogFlushRC(NULL, pLogger);
1428	#endif
1429	#ifdef VBOX_WITH_RC_RELEASE_LOGGING
1430	PRTLOGGERRC pRelLogger = pVM->vmm.s.pRCRelLoggerR3;
1431	if (RT_UNLIKELY(pRelLogger && pRelLogger->offScratch > 0))
1432	RTLogFlushRC(RTLogRelDefaultInstance(), pRelLogger);
1433	#endif
1434	if (rc == VERR_TRPM_PANIC \|\| rc == VERR_TRPM_DONT_PANIC)
1435	VMMR3FatalDump(pVM, pVCpu, rc);
1436	if (rc != VINF_VMM_CALL_HOST)
1437	{
1438	Log2(("VMMR3CallGCV: returns %Rrc (cs:eip=%04x:%08x)\n", rc, CPUMGetGuestCS(pVCpu), CPUMGetGuestEIP(pVCpu)));
1439	return rc;
1440	}
1441	rc = vmmR3ServiceCallHostRequest(pVM, pVCpu);
1442	if (RT_FAILURE(rc))
1443	return rc;
1444	}
1445	}
1446
1447
1448	/**
1449	* Wrapper for SUPCallVMMR0Ex which will deal with
1450	* VINF_VMM_CALL_HOST returns.
1451	*
1452	* @returns VBox status code.
1453	* @param pVM The VM to operate on.
1454	* @param uOperation Operation to execute.
1455	* @param u64Arg Constant argument.
1456	* @param pReqHdr Pointer to a request header. See SUPCallVMMR0Ex for
1457	* details.
1458	*/
1459	VMMR3DECL(int) VMMR3CallR0(PVM pVM, uint32_t uOperation, uint64_t u64Arg, PSUPVMMR0REQHDR pReqHdr)
1460	{
1461	PVMCPU pVCpu = VMMGetCpu(pVM);
1462	AssertReturn(pVCpu, VERR_VM_THREAD_NOT_EMT);
1463
1464	/*
1465	* Call Ring-0 entry with init code.
1466	*/
1467	int rc;
1468	for (;;)
1469	{
1470	#ifdef NO_SUPCALLR0VMM
1471	rc = VERR_GENERAL_FAILURE;
1472	#else
1473	rc = SUPCallVMMR0Ex(pVM->pVMR0, pVCpu->idCpu, uOperation, u64Arg, pReqHdr);
1474	#endif
1475	/*
1476	* Flush the logs.
1477	*/
1478	#ifdef LOG_ENABLED
1479	if ( pVCpu->vmm.s.pR0LoggerR3
1480	&& pVCpu->vmm.s.pR0LoggerR3->Logger.offScratch > 0)
1481	RTLogFlushToLogger(&pVCpu->vmm.s.pR0LoggerR3->Logger, NULL);
1482	#endif
1483	if (rc != VINF_VMM_CALL_HOST)
1484	break;
1485	rc = vmmR3ServiceCallHostRequest(pVM, pVCpu);
1486	if (RT_FAILURE(rc) \|\| (rc >= VINF_EM_FIRST && rc <= VINF_EM_LAST))
1487	break;
1488	/* Resume R0 */
1489	}
1490
1491	AssertLogRelMsgReturn(rc == VINF_SUCCESS \|\| VBOX_FAILURE(rc),
1492	("uOperation=%u rc=%Rrc\n", uOperation, rc),
1493	VERR_INTERNAL_ERROR);
1494	return rc;
1495	}
1496
1497
1498	/**
1499	* Resumes executing hypervisor code when interrupted by a queue flush or a
1500	* debug event.
1501	*
1502	* @returns VBox status code.
1503	* @param pVM VM handle.
1504	* @param pVCpu VMCPU handle.
1505	*/
1506	VMMR3DECL(int) VMMR3ResumeHyper(PVM pVM, PVMCPU pVCpu)
1507	{
1508	Log(("VMMR3ResumeHyper: eip=%RRv esp=%RRv\n", CPUMGetHyperEIP(pVCpu), CPUMGetHyperESP(pVCpu)));
1509	AssertReturn(pVM->cCPUs == 1, VERR_RAW_MODE_INVALID_SMP);
1510
1511	/*
1512	* We hide log flushes (outer) and hypervisor interrupts (inner).
1513	*/
1514	for (;;)
1515	{
1516	int rc;
1517	Assert(CPUMGetHyperCR3(pVCpu) && CPUMGetHyperCR3(pVCpu) == PGMGetHyperCR3(pVCpu));
1518	do
1519	{
1520	#ifdef NO_SUPCALLR0VMM
1521	rc = VERR_GENERAL_FAILURE;
1522	#else
1523	rc = SUPCallVMMR0Fast(pVM->pVMR0, VMMR0_DO_RAW_RUN, 0);
1524	if (RT_LIKELY(rc == VINF_SUCCESS))
1525	rc = pVCpu->vmm.s.iLastGZRc;
1526	#endif
1527	} while (rc == VINF_EM_RAW_INTERRUPT_HYPER);
1528
1529	/*
1530	* Flush the loggers,
1531	*/
1532	#ifdef LOG_ENABLED
1533	PRTLOGGERRC pLogger = pVM->vmm.s.pRCLoggerR3;
1534	if ( pLogger
1535	&& pLogger->offScratch > 0)
1536	RTLogFlushRC(NULL, pLogger);
1537	#endif
1538	#ifdef VBOX_WITH_RC_RELEASE_LOGGING
1539	PRTLOGGERRC pRelLogger = pVM->vmm.s.pRCRelLoggerR3;
1540	if (RT_UNLIKELY(pRelLogger && pRelLogger->offScratch > 0))
1541	RTLogFlushRC(RTLogRelDefaultInstance(), pRelLogger);
1542	#endif
1543	if (rc == VERR_TRPM_PANIC \|\| rc == VERR_TRPM_DONT_PANIC)
1544	VMMR3FatalDump(pVM, pVCpu, rc);
1545	if (rc != VINF_VMM_CALL_HOST)
1546	{
1547	Log(("VMMR3ResumeHyper: returns %Rrc\n", rc));
1548	return rc;
1549	}
1550	rc = vmmR3ServiceCallHostRequest(pVM, pVCpu);
1551	if (RT_FAILURE(rc))
1552	return rc;
1553	}
1554	}
1555
1556
1557	/**
1558	* Service a call to the ring-3 host code.
1559	*
1560	* @returns VBox status code.
1561	* @param pVM VM handle.
1562	* @param pVCpu VMCPU handle
1563	* @remark Careful with critsects.
1564	*/
1565	static int vmmR3ServiceCallHostRequest(PVM pVM, PVMCPU pVCpu)
1566	{
1567	/*
1568	* We must also check for pending critsect exits or else we can deadlock
1569	* when entering other critsects here.
1570	*/
1571	if (VMCPU_FF_ISPENDING(pVCpu, VMCPU_FF_PDM_CRITSECT))
1572	PDMCritSectFF(pVCpu);
1573
1574	switch (pVCpu->vmm.s.enmCallHostOperation)
1575	{
1576	/*
1577	* Acquire the PDM lock.
1578	*/
1579	case VMMCALLHOST_PDM_LOCK:
1580	{
1581	pVCpu->vmm.s.rcCallHost = PDMR3LockCall(pVM);
1582	break;
1583	}
1584
1585	/*
1586	* Flush a PDM queue.
1587	*/
1588	case VMMCALLHOST_PDM_QUEUE_FLUSH:
1589	{
1590	PDMR3QueueFlushWorker(pVM, NULL);
1591	pVCpu->vmm.s.rcCallHost = VINF_SUCCESS;
1592	break;
1593	}
1594
1595	/*
1596	* Grow the PGM pool.
1597	*/
1598	case VMMCALLHOST_PGM_POOL_GROW:
1599	{
1600	pVCpu->vmm.s.rcCallHost = PGMR3PoolGrow(pVM);
1601	break;
1602	}
1603
1604	/*
1605	* Maps an page allocation chunk into ring-3 so ring-0 can use it.
1606	*/
1607	case VMMCALLHOST_PGM_MAP_CHUNK:
1608	{
1609	pVCpu->vmm.s.rcCallHost = PGMR3PhysChunkMap(pVM, pVCpu->vmm.s.u64CallHostArg);
1610	break;
1611	}
1612
1613	/*
1614	* Allocates more handy pages.
1615	*/
1616	case VMMCALLHOST_PGM_ALLOCATE_HANDY_PAGES:
1617	{
1618	pVCpu->vmm.s.rcCallHost = PGMR3PhysAllocateHandyPages(pVM);
1619	break;
1620	}
1621
1622	/*
1623	* Acquire the PGM lock.
1624	*/
1625	case VMMCALLHOST_PGM_LOCK:
1626	{
1627	pVCpu->vmm.s.rcCallHost = PGMR3LockCall(pVM);
1628	break;
1629	}
1630
1631	/*
1632	* Acquire the MM hypervisor heap lock.
1633	*/
1634	case VMMCALLHOST_MMHYPER_LOCK:
1635	{
1636	pVCpu->vmm.s.rcCallHost = MMR3LockCall(pVM);
1637	break;
1638	}
1639
1640	/*
1641	* Flush REM handler notifications.
1642	*/
1643	case VMMCALLHOST_REM_REPLAY_HANDLER_NOTIFICATIONS:
1644	{
1645	REMR3ReplayHandlerNotifications(pVM);
1646	pVCpu->vmm.s.rcCallHost = VINF_SUCCESS;
1647	break;
1648	}
1649
1650	/*
1651	* This is a noop. We just take this route to avoid unnecessary
1652	* tests in the loops.
1653	*/
1654	case VMMCALLHOST_VMM_LOGGER_FLUSH:
1655	pVCpu->vmm.s.rcCallHost = VINF_SUCCESS;
1656	LogAlways(("FLUSH\n"));
1657	break;
1658
1659	/*
1660	* Set the VM error message.
1661	*/
1662	case VMMCALLHOST_VM_SET_ERROR:
1663	VMR3SetErrorWorker(pVM);
1664	pVCpu->vmm.s.rcCallHost = VINF_SUCCESS;
1665	break;
1666
1667	/*
1668	* Set the VM runtime error message.
1669	*/
1670	case VMMCALLHOST_VM_SET_RUNTIME_ERROR:
1671	pVCpu->vmm.s.rcCallHost = VMR3SetRuntimeErrorWorker(pVM);
1672	break;
1673
1674	/*
1675	* Signal a ring 0 hypervisor assertion.
1676	* Cancel the longjmp operation that's in progress.
1677	*/
1678	case VMMCALLHOST_VM_R0_ASSERTION:
1679	pVCpu->vmm.s.enmCallHostOperation = VMMCALLHOST_INVALID;
1680	pVCpu->vmm.s.CallHostR0JmpBuf.fInRing3Call = false;
1681	#ifdef RT_ARCH_X86
1682	pVCpu->vmm.s.CallHostR0JmpBuf.eip = 0;
1683	#else
1684	pVCpu->vmm.s.CallHostR0JmpBuf.rip = 0;
1685	#endif
1686	LogRel((pVM->vmm.s.szRing0AssertMsg1));
1687	LogRel((pVM->vmm.s.szRing0AssertMsg2));
1688	return VERR_VMM_RING0_ASSERTION;
1689
1690	/*
1691	* A forced switch to ring 0 for preemption purposes.
1692	*/
1693	case VMMCALLHOST_VM_R0_PREEMPT:
1694	pVCpu->vmm.s.rcCallHost = VINF_SUCCESS;
1695	break;
1696
1697	default:
1698	AssertMsgFailed(("enmCallHostOperation=%d\n", pVCpu->vmm.s.enmCallHostOperation));
1699	return VERR_INTERNAL_ERROR;
1700	}
1701
1702	pVCpu->vmm.s.enmCallHostOperation = VMMCALLHOST_INVALID;
1703	return VINF_SUCCESS;
1704	}
1705
1706
1707	/**
1708	* Displays the Force action Flags.
1709	*
1710	* @param pVM The VM handle.
1711	* @param pHlp The output helpers.
1712	* @param pszArgs The additional arguments (ignored).
1713	*/
1714	static DECLCALLBACK(void) vmmR3InfoFF(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs)
1715	{
1716	int c;
1717	uint32_t f;
1718	#define PRINT_FLAG(prf,flag) do { \
1719	if (f & (prf##flag)) \
1720	{ \
1721	static const char *s_psz = #flag; \
1722	if (!(c % 6)) \
1723	pHlp->pfnPrintf(pHlp, "%s\n %s", c ? "," : "", s_psz); \
1724	else \
1725	pHlp->pfnPrintf(pHlp, ", %s", s_psz); \
1726	c++; \
1727	f &= ~(prf##flag); \
1728	} \
1729	} while (0)
1730
1731	#define PRINT_GROUP(prf,grp,sfx) do { \
1732	if (f & (prf##grp##sfx)) \
1733	{ \
1734	static const char *s_psz = #grp; \
1735	if (!(c % 5)) \
1736	pHlp->pfnPrintf(pHlp, "%s %s", c ? ",\n" : " Groups:\n", s_psz); \
1737	else \
1738	pHlp->pfnPrintf(pHlp, ", %s", s_psz); \
1739	c++; \
1740	} \
1741	} while (0)
1742
1743	/*
1744	* The global flags.
1745	*/
1746	const uint32_t fGlobalForcedActions = pVM->fGlobalForcedActions;
1747	pHlp->pfnPrintf(pHlp, "Global FFs: %#RX32", fGlobalForcedActions);
1748
1749	/* show the flag mnemonics */
1750	c = 0;
1751	f = fGlobalForcedActions;
1752	PRINT_FLAG(VM_FF_,TM_VIRTUAL_SYNC);
1753	PRINT_FLAG(VM_FF_,PDM_QUEUES);
1754	PRINT_FLAG(VM_FF_,PDM_DMA);
1755	PRINT_FLAG(VM_FF_,DBGF);
1756	PRINT_FLAG(VM_FF_,REQUEST);
1757	PRINT_FLAG(VM_FF_,TERMINATE);
1758	PRINT_FLAG(VM_FF_,RESET);
1759	PRINT_FLAG(VM_FF_,PGM_NEED_HANDY_PAGES);
1760	PRINT_FLAG(VM_FF_,PGM_NO_MEMORY);
1761	PRINT_FLAG(VM_FF_,REM_HANDLER_NOTIFY);
1762	PRINT_FLAG(VM_FF_,DEBUG_SUSPEND);
1763	if (f)
1764	pHlp->pfnPrintf(pHlp, "%s\n Unknown bits: %#RX32\n", c ? "," : "", f);
1765	else
1766	pHlp->pfnPrintf(pHlp, "\n");
1767
1768	/* the groups */
1769	c = 0;
1770	f = fGlobalForcedActions;
1771	PRINT_GROUP(VM_FF_,EXTERNAL_SUSPENDED,_MASK);
1772	PRINT_GROUP(VM_FF_,EXTERNAL_HALTED,_MASK);
1773	PRINT_GROUP(VM_FF_,HIGH_PRIORITY_PRE,_MASK);
1774	PRINT_GROUP(VM_FF_,HIGH_PRIORITY_PRE_RAW,_MASK);
1775	PRINT_GROUP(VM_FF_,HIGH_PRIORITY_POST,_MASK);
1776	PRINT_GROUP(VM_FF_,NORMAL_PRIORITY_POST,_MASK);
1777	PRINT_GROUP(VM_FF_,NORMAL_PRIORITY,_MASK);
1778	PRINT_GROUP(VM_FF_,ALL_BUT_RAW,_MASK);
1779	if (c)
1780	pHlp->pfnPrintf(pHlp, "\n");
1781
1782	/*
1783	* Per CPU flags.
1784	*/
1785	for (VMCPUID i = 0; i < pVM->cCPUs; i++)
1786	{
1787	const uint32_t fLocalForcedActions = pVM->aCpus[i].fLocalForcedActions;
1788	pHlp->pfnPrintf(pHlp, "CPU %u FFs: %#RX32", i, fLocalForcedActions);
1789
1790	/* show the flag mnemonics */
1791	c = 0;
1792	f = fLocalForcedActions;
1793	PRINT_FLAG(VMCPU_FF_,INTERRUPT_APIC);
1794	PRINT_FLAG(VMCPU_FF_,INTERRUPT_PIC);
1795	PRINT_FLAG(VMCPU_FF_,TIMER);
1796	PRINT_FLAG(VMCPU_FF_,PDM_CRITSECT);
1797	PRINT_FLAG(VMCPU_FF_,PGM_SYNC_CR3);
1798	PRINT_FLAG(VMCPU_FF_,PGM_SYNC_CR3_NON_GLOBAL);
1799	PRINT_FLAG(VMCPU_FF_,TRPM_SYNC_IDT);
1800	PRINT_FLAG(VMCPU_FF_,SELM_SYNC_TSS);
1801	PRINT_FLAG(VMCPU_FF_,SELM_SYNC_GDT);
1802	PRINT_FLAG(VMCPU_FF_,SELM_SYNC_LDT);
1803	PRINT_FLAG(VMCPU_FF_,INHIBIT_INTERRUPTS);
1804	PRINT_FLAG(VMCPU_FF_,CSAM_SCAN_PAGE);
1805	PRINT_FLAG(VMCPU_FF_,CSAM_PENDING_ACTION);
1806	PRINT_FLAG(VMCPU_FF_,TO_R3);
1807	if (f)
1808	pHlp->pfnPrintf(pHlp, "%s\n Unknown bits: %#RX32\n", c ? "," : "", f);
1809	else
1810	pHlp->pfnPrintf(pHlp, "\n");
1811
1812	/* the groups */
1813	c = 0;
1814	f = fLocalForcedActions;
1815	PRINT_GROUP(VMCPU_FF_,EXTERNAL_SUSPENDED,_MASK);
1816	PRINT_GROUP(VMCPU_FF_,EXTERNAL_HALTED,_MASK);
1817	PRINT_GROUP(VMCPU_FF_,HIGH_PRIORITY_PRE,_MASK);
1818	PRINT_GROUP(VMCPU_FF_,HIGH_PRIORITY_PRE_RAW,_MASK);
1819	PRINT_GROUP(VMCPU_FF_,HIGH_PRIORITY_POST,_MASK);
1820	PRINT_GROUP(VMCPU_FF_,NORMAL_PRIORITY_POST,_MASK);
1821	PRINT_GROUP(VMCPU_FF_,NORMAL_PRIORITY,_MASK);
1822	PRINT_GROUP(VMCPU_FF_,RESUME_GUEST,_MASK);
1823	PRINT_GROUP(VMCPU_FF_,HWACCM_TO_R3,_MASK);
1824	PRINT_GROUP(VMCPU_FF_,ALL_BUT_RAW,_MASK);
1825	if (c)
1826	pHlp->pfnPrintf(pHlp, "\n");
1827	}
1828
1829	#undef PRINT_FLAG
1830	#undef PRINT_GROUP
1831	}
1832

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source: vbox/trunk/src/VBox/VMM/VMM.cpp@ 20552

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