VMMR0.cpp@ 45747

Last change on this file since 45747 was 45701, checked in by vboxsync, 12 years ago
VMM: SELM and VMM early HM init changes.
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1	/* $Id: VMMR0.cpp 45701 2013-04-24 14:21:09Z vboxsync $ */
2	/** @file
3	* VMM - Host Context Ring 0.
4	*/
5
6	/*
7	* Copyright (C) 2006-2012 Oracle Corporation
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
18	/*******************************************************************************
19	* Header Files *
20	*******************************************************************************/
21	#define LOG_GROUP LOG_GROUP_VMM
22	#include <VBox/vmm/vmm.h>
23	#include <VBox/sup.h>
24	#include <VBox/vmm/trpm.h>
25	#include <VBox/vmm/cpum.h>
26	#include <VBox/vmm/pdmapi.h>
27	#include <VBox/vmm/pgm.h>
28	#include <VBox/vmm/stam.h>
29	#include <VBox/vmm/tm.h>
30	#include "VMMInternal.h"
31	#include <VBox/vmm/vm.h>
32	#ifdef VBOX_WITH_PCI_PASSTHROUGH
33	# include <VBox/vmm/pdmpci.h>
34	#endif
35
36	#include <VBox/vmm/gvmm.h>
37	#include <VBox/vmm/gmm.h>
38	#include <VBox/intnet.h>
39	#include <VBox/vmm/hm.h>
40	#include <VBox/param.h>
41	#include <VBox/err.h>
42	#include <VBox/version.h>
43	#include <VBox/log.h>
44
45	#include <iprt/asm-amd64-x86.h>
46	#include <iprt/assert.h>
47	#include <iprt/crc.h>
48	#include <iprt/mp.h>
49	#include <iprt/once.h>
50	#include <iprt/stdarg.h>
51	#include <iprt/string.h>
52	#include <iprt/thread.h>
53	#include <iprt/timer.h>
54
55	#include "dtrace/VBoxVMM.h"
56
57
58	#if defined(_MSC_VER) && defined(RT_ARCH_AMD64) /** @todo check this with with VC7! */
59	# pragma intrinsic(_AddressOfReturnAddress)
60	#endif
61
62
63	/*******************************************************************************
64	* Internal Functions *
65	*******************************************************************************/
66	RT_C_DECLS_BEGIN
67	#if defined(RT_ARCH_X86) && (defined(RT_OS_SOLARIS) \|\| defined(RT_OS_FREEBSD))
68	extern uint64_t __udivdi3(uint64_t, uint64_t);
69	extern uint64_t __umoddi3(uint64_t, uint64_t);
70	#endif
71	RT_C_DECLS_END
72
73
74	/*******************************************************************************
75	* Global Variables *
76	*******************************************************************************/
77	/** Drag in necessary library bits.
78	* The runtime lives here (in VMMR0.r0) and VBoxDDR0.r0 links against us. /
79	PFNRT g_VMMGCDeps[] =
80	{
81	(PFNRT)RTCrc32,
82	(PFNRT)RTOnce,
83	#if defined(RT_ARCH_X86) && (defined(RT_OS_SOLARIS) \|\| defined(RT_OS_FREEBSD))
84	(PFNRT)__udivdi3,
85	(PFNRT)__umoddi3,
86	#endif
87	NULL
88	};
89
90	#ifdef RT_OS_SOLARIS
91	/* Dependency information for the native solaris loader. */
92	extern "C" { char _depends_on[] = "vboxdrv"; }
93	#endif
94
95
96
97	/**
98	* Initialize the module.
99	* This is called when we're first loaded.
100	*
101	* @returns 0 on success.
102	* @returns VBox status on failure.
103	* @param hMod Image handle for use in APIs.
104	*/
105	DECLEXPORT(int) ModuleInit(void *hMod)
106	{
107	#ifdef VBOX_WITH_DTRACE_R0
108	/*
109	* The first thing to do is register the static tracepoints.
110	* (Deregistration is automatic.)
111	*/
112	int rc2 = SUPR0TracerRegisterModule(hMod, &g_VTGObjHeader);
113	if (RT_FAILURE(rc2))
114	return rc2;
115	#endif
116	LogFlow(("ModuleInit:\n"));
117
118	/*
119	* Initialize the VMM, GVMM, GMM, HM, PGM (Darwin) and INTNET.
120	*/
121	int rc = vmmInitFormatTypes();
122	if (RT_SUCCESS(rc))
123	{
124	rc = GVMMR0Init();
125	if (RT_SUCCESS(rc))
126	{
127	rc = GMMR0Init();
128	if (RT_SUCCESS(rc))
129	{
130	rc = HMR0Init();
131	if (RT_SUCCESS(rc))
132	{
133	rc = PGMRegisterStringFormatTypes();
134	if (RT_SUCCESS(rc))
135	{
136	#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
137	rc = PGMR0DynMapInit();
138	#endif
139	if (RT_SUCCESS(rc))
140	{
141	rc = IntNetR0Init();
142	if (RT_SUCCESS(rc))
143	{
144	#ifdef VBOX_WITH_PCI_PASSTHROUGH
145	rc = PciRawR0Init();
146	#endif
147	if (RT_SUCCESS(rc))
148	{
149	rc = CPUMR0ModuleInit();
150	if (RT_SUCCESS(rc))
151	{
152	#ifdef VBOX_WITH_TRIPLE_FAULT_HACK
153	rc = vmmR0TripleFaultHackInit();
154	if (RT_SUCCESS(rc))
155	#endif
156	{
157	LogFlow(("ModuleInit: returns success.\n"));
158	return VINF_SUCCESS;
159	}
160
161	/*
162	* Bail out.
163	*/
164	#ifdef VBOX_WITH_TRIPLE_FAULT_HACK
165	vmmR0TripleFaultHackTerm();
166	#endif
167	}
168	else
169	LogRel(("ModuleInit: CPUMR0ModuleInit -> %Rrc\n", rc));
170	#ifdef VBOX_WITH_PCI_PASSTHROUGH
171	PciRawR0Term();
172	#endif
173	}
174	else
175	LogRel(("ModuleInit: PciRawR0Init -> %Rrc\n", rc));
176	IntNetR0Term();
177	}
178	else
179	LogRel(("ModuleInit: IntNetR0Init -> %Rrc\n", rc));
180	#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
181	PGMR0DynMapTerm();
182	#endif
183	}
184	else
185	LogRel(("ModuleInit: PGMR0DynMapInit -> %Rrc\n", rc));
186	PGMDeregisterStringFormatTypes();
187	}
188	else
189	LogRel(("ModuleInit: PGMRegisterStringFormatTypes -> %Rrc\n", rc));
190	HMR0Term();
191	}
192	else
193	LogRel(("ModuleInit: HMR0Init -> %Rrc\n", rc));
194	GMMR0Term();
195	}
196	else
197	LogRel(("ModuleInit: GMMR0Init -> %Rrc\n", rc));
198	GVMMR0Term();
199	}
200	else
201	LogRel(("ModuleInit: GVMMR0Init -> %Rrc\n", rc));
202	vmmTermFormatTypes();
203	}
204	else
205	LogRel(("ModuleInit: vmmInitFormatTypes -> %Rrc\n", rc));
206
207	LogFlow(("ModuleInit: failed %Rrc\n", rc));
208	return rc;
209	}
210
211
212	/**
213	* Terminate the module.
214	* This is called when we're finally unloaded.
215	*
216	* @param hMod Image handle for use in APIs.
217	*/
218	DECLEXPORT(void) ModuleTerm(void *hMod)
219	{
220	LogFlow(("ModuleTerm:\n"));
221
222	/*
223	* Terminate the CPUM module (Local APIC cleanup).
224	*/
225	CPUMR0ModuleTerm();
226
227	/*
228	* Terminate the internal network service.
229	*/
230	IntNetR0Term();
231
232	/*
233	* PGM (Darwin), HM and PciRaw global cleanup.
234	*/
235	#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
236	PGMR0DynMapTerm();
237	#endif
238	#ifdef VBOX_WITH_PCI_PASSTHROUGH
239	PciRawR0Term();
240	#endif
241	PGMDeregisterStringFormatTypes();
242	HMR0Term();
243	#ifdef VBOX_WITH_TRIPLE_FAULT_HACK
244	vmmR0TripleFaultHackTerm();
245	#endif
246
247	/*
248	* Destroy the GMM and GVMM instances.
249	*/
250	GMMR0Term();
251	GVMMR0Term();
252
253	vmmTermFormatTypes();
254
255	LogFlow(("ModuleTerm: returns\n"));
256	}
257
258
259	/**
260	* Initiates the R0 driver for a particular VM instance.
261	*
262	* @returns VBox status code.
263	*
264	* @param pVM Pointer to the VM.
265	* @param uSvnRev The SVN revision of the ring-3 part.
266	* @thread EMT.
267	*/
268	static int vmmR0InitVM(PVM pVM, uint32_t uSvnRev)
269	{
270	/*
271	* Match the SVN revisions.
272	*/
273	if (uSvnRev != VMMGetSvnRev())
274	{
275	LogRel(("VMMR0InitVM: Revision mismatch, r3=%d r0=%d\n", uSvnRev, VMMGetSvnRev()));
276	SUPR0Printf("VMMR0InitVM: Revision mismatch, r3=%d r0=%d\n", uSvnRev, VMMGetSvnRev());
277	return VERR_VMM_R0_VERSION_MISMATCH;
278	}
279	if ( !VALID_PTR(pVM)
280	\|\| pVM->pVMR0 != pVM)
281	return VERR_INVALID_PARAMETER;
282
283	#ifdef LOG_ENABLED
284	/*
285	* Register the EMT R0 logger instance for VCPU 0.
286	*/
287	PVMCPU pVCpu = &pVM->aCpus[0];
288
289	PVMMR0LOGGER pR0Logger = pVCpu->vmm.s.pR0LoggerR0;
290	if (pR0Logger)
291	{
292	# if 0 /* testing of the logger. */
293	LogCom(("vmmR0InitVM: before %p\n", RTLogDefaultInstance()));
294	LogCom(("vmmR0InitVM: pfnFlush=%p actual=%p\n", pR0Logger->Logger.pfnFlush, vmmR0LoggerFlush));
295	LogCom(("vmmR0InitVM: pfnLogger=%p actual=%p\n", pR0Logger->Logger.pfnLogger, vmmR0LoggerWrapper));
296	LogCom(("vmmR0InitVM: offScratch=%d fFlags=%#x fDestFlags=%#x\n", pR0Logger->Logger.offScratch, pR0Logger->Logger.fFlags, pR0Logger->Logger.fDestFlags));
297
298	RTLogSetDefaultInstanceThread(&pR0Logger->Logger, (uintptr_t)pVM->pSession);
299	LogCom(("vmmR0InitVM: after %p reg\n", RTLogDefaultInstance()));
300	RTLogSetDefaultInstanceThread(NULL, pVM->pSession);
301	LogCom(("vmmR0InitVM: after %p dereg\n", RTLogDefaultInstance()));
302
303	pR0Logger->Logger.pfnLogger("hello ring-0 logger\n");
304	LogCom(("vmmR0InitVM: returned successfully from direct logger call.\n"));
305	pR0Logger->Logger.pfnFlush(&pR0Logger->Logger);
306	LogCom(("vmmR0InitVM: returned successfully from direct flush call.\n"));
307
308	RTLogSetDefaultInstanceThread(&pR0Logger->Logger, (uintptr_t)pVM->pSession);
309	LogCom(("vmmR0InitVM: after %p reg2\n", RTLogDefaultInstance()));
310	pR0Logger->Logger.pfnLogger("hello ring-0 logger\n");
311	LogCom(("vmmR0InitVM: returned successfully from direct logger call (2). offScratch=%d\n", pR0Logger->Logger.offScratch));
312	RTLogSetDefaultInstanceThread(NULL, pVM->pSession);
313	LogCom(("vmmR0InitVM: after %p dereg2\n", RTLogDefaultInstance()));
314
315	RTLogLoggerEx(&pR0Logger->Logger, 0, ~0U, "hello ring-0 logger (RTLogLoggerEx)\n");
316	LogCom(("vmmR0InitVM: RTLogLoggerEx returned fine offScratch=%d\n", pR0Logger->Logger.offScratch));
317
318	RTLogSetDefaultInstanceThread(&pR0Logger->Logger, (uintptr_t)pVM->pSession);
319	RTLogPrintf("hello ring-0 logger (RTLogPrintf)\n");
320	LogCom(("vmmR0InitVM: RTLogPrintf returned fine offScratch=%d\n", pR0Logger->Logger.offScratch));
321	# endif
322	Log(("Switching to per-thread logging instance %p (key=%p)\n", &pR0Logger->Logger, pVM->pSession));
323	RTLogSetDefaultInstanceThread(&pR0Logger->Logger, (uintptr_t)pVM->pSession);
324	pR0Logger->fRegistered = true;
325	}
326	#endif /* LOG_ENABLED */
327
328	/*
329	* Check if the host supports high resolution timers or not.
330	*/
331	if ( pVM->vmm.s.fUsePeriodicPreemptionTimers
332	&& !RTTimerCanDoHighResolution())
333	pVM->vmm.s.fUsePeriodicPreemptionTimers = false;
334
335	/*
336	* Initialize the per VM data for GVMM and GMM.
337	*/
338	int rc = GVMMR0InitVM(pVM);
339	// if (RT_SUCCESS(rc))
340	// rc = GMMR0InitPerVMData(pVM);
341	if (RT_SUCCESS(rc))
342	{
343	/*
344	* Init HM, CPUM and PGM (Darwin only).
345	*/
346	rc = HMR0InitVM(pVM);
347	if (RT_SUCCESS(rc))
348	{
349	rc = CPUMR0Init(pVM); /** @todo rename to CPUMR0InitVM */
350	if (RT_SUCCESS(rc))
351	{
352	#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
353	rc = PGMR0DynMapInitVM(pVM);
354	#endif
355	if (RT_SUCCESS(rc))
356	{
357	#ifdef VBOX_WITH_PCI_PASSTHROUGH
358	rc = PciRawR0InitVM(pVM);
359	#endif
360	if (RT_SUCCESS(rc))
361	{
362	GVMMR0DoneInitVM(pVM);
363	return rc;
364	}
365	}
366
367	/* bail out */
368	}
369	#ifdef VBOX_WITH_PCI_PASSTHROUGH
370	PciRawR0TermVM(pVM);
371	#endif
372	HMR0TermVM(pVM);
373	}
374	}
375
376
377	RTLogSetDefaultInstanceThread(NULL, (uintptr_t)pVM->pSession);
378	return rc;
379	}
380
381
382	/**
383	* Terminates the R0 bits for a particular VM instance.
384	*
385	* This is normally called by ring-3 as part of the VM termination process, but
386	* may alternatively be called during the support driver session cleanup when
387	* the VM object is destroyed (see GVMM).
388	*
389	* @returns VBox status code.
390	*
391	* @param pVM Pointer to the VM.
392	* @param pGVM Pointer to the global VM structure. Optional.
393	* @thread EMT or session clean up thread.
394	*/
395	VMMR0DECL(int) VMMR0TermVM(PVM pVM, PGVM pGVM)
396	{
397	#ifdef VBOX_WITH_PCI_PASSTHROUGH
398	PciRawR0TermVM(pVM);
399	#endif
400
401
402	/*
403	* Tell GVMM what we're up to and check that we only do this once.
404	*/
405	if (GVMMR0DoingTermVM(pVM, pGVM))
406	{
407	/** @todo I wish to call PGMR0PhysFlushHandyPages(pVM, &pVM->aCpus[idCpu])
408	* here to make sure we don't leak any shared pages if we crash... */
409	#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
410	PGMR0DynMapTermVM(pVM);
411	#endif
412	HMR0TermVM(pVM);
413	}
414
415	/*
416	* Deregister the logger.
417	*/
418	RTLogSetDefaultInstanceThread(NULL, (uintptr_t)pVM->pSession);
419	return VINF_SUCCESS;
420	}
421
422
423	#ifdef VBOX_WITH_STATISTICS
424	/**
425	* Record return code statistics
426	* @param pVM Pointer to the VM.
427	* @param pVCpu Pointer to the VMCPU.
428	* @param rc The status code.
429	*/
430	static void vmmR0RecordRC(PVM pVM, PVMCPU pVCpu, int rc)
431	{
432	/*
433	* Collect statistics.
434	*/
435	switch (rc)
436	{
437	case VINF_SUCCESS:
438	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetNormal);
439	break;
440	case VINF_EM_RAW_INTERRUPT:
441	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetInterrupt);
442	break;
443	case VINF_EM_RAW_INTERRUPT_HYPER:
444	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetInterruptHyper);
445	break;
446	case VINF_EM_RAW_GUEST_TRAP:
447	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetGuestTrap);
448	break;
449	case VINF_EM_RAW_RING_SWITCH:
450	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetRingSwitch);
451	break;
452	case VINF_EM_RAW_RING_SWITCH_INT:
453	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetRingSwitchInt);
454	break;
455	case VINF_EM_RAW_STALE_SELECTOR:
456	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetStaleSelector);
457	break;
458	case VINF_EM_RAW_IRET_TRAP:
459	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetIRETTrap);
460	break;
461	case VINF_IOM_R3_IOPORT_READ:
462	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetIORead);
463	break;
464	case VINF_IOM_R3_IOPORT_WRITE:
465	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetIOWrite);
466	break;
467	case VINF_IOM_R3_MMIO_READ:
468	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetMMIORead);
469	break;
470	case VINF_IOM_R3_MMIO_WRITE:
471	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetMMIOWrite);
472	break;
473	case VINF_IOM_R3_MMIO_READ_WRITE:
474	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetMMIOReadWrite);
475	break;
476	case VINF_PATM_HC_MMIO_PATCH_READ:
477	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetMMIOPatchRead);
478	break;
479	case VINF_PATM_HC_MMIO_PATCH_WRITE:
480	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetMMIOPatchWrite);
481	break;
482	case VINF_EM_RAW_EMULATE_INSTR:
483	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetEmulate);
484	break;
485	case VINF_EM_RAW_EMULATE_IO_BLOCK:
486	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetIOBlockEmulate);
487	break;
488	case VINF_PATCH_EMULATE_INSTR:
489	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetPatchEmulate);
490	break;
491	case VINF_EM_RAW_EMULATE_INSTR_LDT_FAULT:
492	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetLDTFault);
493	break;
494	case VINF_EM_RAW_EMULATE_INSTR_GDT_FAULT:
495	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetGDTFault);
496	break;
497	case VINF_EM_RAW_EMULATE_INSTR_IDT_FAULT:
498	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetIDTFault);
499	break;
500	case VINF_EM_RAW_EMULATE_INSTR_TSS_FAULT:
501	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetTSSFault);
502	break;
503	case VINF_EM_RAW_EMULATE_INSTR_PD_FAULT:
504	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetPDFault);
505	break;
506	case VINF_CSAM_PENDING_ACTION:
507	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetCSAMTask);
508	break;
509	case VINF_PGM_SYNC_CR3:
510	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetSyncCR3);
511	break;
512	case VINF_PATM_PATCH_INT3:
513	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetPatchInt3);
514	break;
515	case VINF_PATM_PATCH_TRAP_PF:
516	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetPatchPF);
517	break;
518	case VINF_PATM_PATCH_TRAP_GP:
519	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetPatchGP);
520	break;
521	case VINF_PATM_PENDING_IRQ_AFTER_IRET:
522	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetPatchIretIRQ);
523	break;
524	case VINF_EM_RESCHEDULE_REM:
525	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetRescheduleREM);
526	break;
527	case VINF_EM_RAW_TO_R3:
528	if (VM_FF_ISPENDING(pVM, VM_FF_TM_VIRTUAL_SYNC))
529	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetToR3TMVirt);
530	else if (VM_FF_ISPENDING(pVM, VM_FF_PGM_NEED_HANDY_PAGES))
531	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetToR3HandyPages);
532	else if (VM_FF_ISPENDING(pVM, VM_FF_PDM_QUEUES))
533	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetToR3PDMQueues);
534	else if (VM_FF_ISPENDING(pVM, VM_FF_EMT_RENDEZVOUS))
535	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetToR3Rendezvous);
536	else if (VM_FF_ISPENDING(pVM, VM_FF_PDM_DMA))
537	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetToR3DMA);
538	else if (VMCPU_FF_ISPENDING(pVCpu, VMCPU_FF_TIMER))
539	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetToR3Timer);
540	else if (VMCPU_FF_ISPENDING(pVCpu, VMCPU_FF_PDM_CRITSECT))
541	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetToR3CritSect);
542	else if (VMCPU_FF_ISPENDING(pVCpu, VMCPU_FF_TO_R3))
543	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetToR3);
544	else
545	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetToR3Unknown);
546	break;
547
548	case VINF_EM_RAW_TIMER_PENDING:
549	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetTimerPending);
550	break;
551	case VINF_EM_RAW_INTERRUPT_PENDING:
552	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetInterruptPending);
553	break;
554	case VINF_VMM_CALL_HOST:
555	switch (pVCpu->vmm.s.enmCallRing3Operation)
556	{
557	case VMMCALLRING3_PDM_CRIT_SECT_ENTER:
558	STAM_COUNTER_INC(&pVM->vmm.s.StatRZCallPDMCritSectEnter);
559	break;
560	case VMMCALLRING3_PDM_LOCK:
561	STAM_COUNTER_INC(&pVM->vmm.s.StatRZCallPDMLock);
562	break;
563	case VMMCALLRING3_PGM_POOL_GROW:
564	STAM_COUNTER_INC(&pVM->vmm.s.StatRZCallPGMPoolGrow);
565	break;
566	case VMMCALLRING3_PGM_LOCK:
567	STAM_COUNTER_INC(&pVM->vmm.s.StatRZCallPGMLock);
568	break;
569	case VMMCALLRING3_PGM_MAP_CHUNK:
570	STAM_COUNTER_INC(&pVM->vmm.s.StatRZCallPGMMapChunk);
571	break;
572	case VMMCALLRING3_PGM_ALLOCATE_HANDY_PAGES:
573	STAM_COUNTER_INC(&pVM->vmm.s.StatRZCallPGMAllocHandy);
574	break;
575	case VMMCALLRING3_REM_REPLAY_HANDLER_NOTIFICATIONS:
576	STAM_COUNTER_INC(&pVM->vmm.s.StatRZCallRemReplay);
577	break;
578	case VMMCALLRING3_VMM_LOGGER_FLUSH:
579	STAM_COUNTER_INC(&pVM->vmm.s.StatRZCallLogFlush);
580	break;
581	case VMMCALLRING3_VM_SET_ERROR:
582	STAM_COUNTER_INC(&pVM->vmm.s.StatRZCallVMSetError);
583	break;
584	case VMMCALLRING3_VM_SET_RUNTIME_ERROR:
585	STAM_COUNTER_INC(&pVM->vmm.s.StatRZCallVMSetRuntimeError);
586	break;
587	case VMMCALLRING3_VM_R0_ASSERTION:
588	default:
589	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetCallRing3);
590	break;
591	}
592	break;
593	case VINF_PATM_DUPLICATE_FUNCTION:
594	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetPATMDuplicateFn);
595	break;
596	case VINF_PGM_CHANGE_MODE:
597	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetPGMChangeMode);
598	break;
599	case VINF_PGM_POOL_FLUSH_PENDING:
600	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetPGMFlushPending);
601	break;
602	case VINF_EM_PENDING_REQUEST:
603	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetPendingRequest);
604	break;
605	case VINF_EM_HM_PATCH_TPR_INSTR:
606	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetPatchTPR);
607	break;
608	default:
609	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetMisc);
610	break;
611	}
612	}
613	#endif /* VBOX_WITH_STATISTICS */
614
615
616	/**
617	* Unused ring-0 entry point that used to be called from the interrupt gate.
618	*
619	* Will be removed one of the next times we do a major SUPDrv version bump.
620	*
621	* @returns VBox status code.
622	* @param pVM Pointer to the VM.
623	* @param enmOperation Which operation to execute.
624	* @param pvArg Argument to the operation.
625	* @remarks Assume called with interrupts disabled.
626	*/
627	VMMR0DECL(int) VMMR0EntryInt(PVM pVM, VMMR0OPERATION enmOperation, void *pvArg)
628	{
629	/*
630	* We're returning VERR_NOT_SUPPORT here so we've got something else
631	* than -1 which the interrupt gate glue code might return.
632	*/
633	Log(("operation %#x is not supported\n", enmOperation));
634	NOREF(enmOperation); NOREF(pvArg); NOREF(pVM);
635	return VERR_NOT_SUPPORTED;
636	}
637
638
639	/**
640	* The Ring 0 entry point, called by the fast-ioctl path.
641	*
642	* @param pVM Pointer to the VM.
643	* The return code is stored in pVM->vmm.s.iLastGZRc.
644	* @param idCpu The Virtual CPU ID of the calling EMT.
645	* @param enmOperation Which operation to execute.
646	* @remarks Assume called with interrupts _enabled_.
647	*/
648	VMMR0DECL(void) VMMR0EntryFast(PVM pVM, VMCPUID idCpu, VMMR0OPERATION enmOperation)
649	{
650	if (RT_UNLIKELY(idCpu >= pVM->cCpus))
651	return;
652	PVMCPU pVCpu = &pVM->aCpus[idCpu];
653
654	switch (enmOperation)
655	{
656	/*
657	* Switch to GC and run guest raw mode code.
658	* Disable interrupts before doing the world switch.
659	*/
660	case VMMR0_DO_RAW_RUN:
661	{
662	#ifndef VBOX_WITH_2X_4GB_ADDR_SPACE_IN_R0
663	/* Some safety precautions first. */
664	if (RT_UNLIKELY(!PGMGetHyperCR3(pVCpu)))
665	{
666	pVCpu->vmm.s.iLastGZRc = VERR_PGM_NO_CR3_SHADOW_ROOT;
667	break;
668	}
669	#endif
670
671	/* Disable preemption and update the periodic preemption timer. */
672	RTTHREADPREEMPTSTATE PreemptState = RTTHREADPREEMPTSTATE_INITIALIZER;
673	RTThreadPreemptDisable(&PreemptState);
674	RTCPUID idHostCpu = RTMpCpuId();
675	#ifdef VBOX_WITH_VMMR0_DISABLE_LAPIC_NMI
676	CPUMR0SetLApic(pVM, idHostCpu);
677	#endif
678	ASMAtomicWriteU32(&pVCpu->idHostCpu, idHostCpu);
679	if (pVM->vmm.s.fUsePeriodicPreemptionTimers)
680	GVMMR0SchedUpdatePeriodicPreemptionTimer(pVM, pVCpu->idHostCpu, TMCalcHostTimerFrequency(pVM, pVCpu));
681
682	/* We might need to disable VT-x if the active switcher turns off paging. */
683	bool fVTxDisabled;
684	int rc = HMR0EnterSwitcher(pVM, pVM->vmm.s.enmSwitcher, &fVTxDisabled);
685	if (RT_SUCCESS(rc))
686	{
687	RTCCUINTREG uFlags = ASMIntDisableFlags();
688
689	for (;;)
690	{
691	VMCPU_SET_STATE(pVCpu, VMCPUSTATE_STARTED_EXEC);
692	TMNotifyStartOfExecution(pVCpu);
693
694	rc = pVM->vmm.s.pfnR0ToRawMode(pVM);
695	pVCpu->vmm.s.iLastGZRc = rc;
696
697	TMNotifyEndOfExecution(pVCpu);
698	VMCPU_SET_STATE(pVCpu, VMCPUSTATE_STARTED);
699
700	if (rc != VINF_VMM_CALL_TRACER)
701	break;
702	SUPR0TracerUmodProbeFire(pVM->pSession, &pVCpu->vmm.s.TracerCtx);
703	}
704
705	/* Re-enable VT-x if previously turned off. */
706	HMR0LeaveSwitcher(pVM, fVTxDisabled);
707
708	if ( rc == VINF_EM_RAW_INTERRUPT
709	\|\| rc == VINF_EM_RAW_INTERRUPT_HYPER)
710	TRPMR0DispatchHostInterrupt(pVM);
711
712	ASMSetFlags(uFlags);
713
714	#ifdef VBOX_WITH_STATISTICS
715	STAM_COUNTER_INC(&pVM->vmm.s.StatRunRC);
716	vmmR0RecordRC(pVM, pVCpu, rc);
717	#endif
718	}
719	else
720	pVCpu->vmm.s.iLastGZRc = rc;
721	ASMAtomicWriteU32(&pVCpu->idHostCpu, NIL_RTCPUID);
722	RTThreadPreemptRestore(&PreemptState);
723	break;
724	}
725
726	/*
727	* Run guest code using the available hardware acceleration technology.
728	*
729	* Disable interrupts before we do anything interesting. On Windows we avoid
730	* this by having the support driver raise the IRQL before calling us, this way
731	* we hope to get away with page faults and later calling into the kernel.
732	*/
733	case VMMR0_DO_HM_RUN:
734	{
735	#ifdef VBOX_WITH_VMMR0_DISABLE_PREEMPTION
736	RTTHREADPREEMPTSTATE PreemptState = RTTHREADPREEMPTSTATE_INITIALIZER;
737	RTThreadPreemptDisable(&PreemptState);
738	#elif !defined(RT_OS_WINDOWS)
739	RTCCUINTREG uFlags = ASMIntDisableFlags();
740	#endif
741	ASMAtomicWriteU32(&pVCpu->idHostCpu, RTMpCpuId());
742	if (pVM->vmm.s.fUsePeriodicPreemptionTimers)
743	GVMMR0SchedUpdatePeriodicPreemptionTimer(pVM, pVCpu->idHostCpu, TMCalcHostTimerFrequency(pVM, pVCpu));
744
745	#ifdef LOG_ENABLED
746	if (pVCpu->idCpu > 0)
747	{
748	/* Lazy registration of ring 0 loggers. */
749	PVMMR0LOGGER pR0Logger = pVCpu->vmm.s.pR0LoggerR0;
750	if ( pR0Logger
751	&& !pR0Logger->fRegistered)
752	{
753	RTLogSetDefaultInstanceThread(&pR0Logger->Logger, (uintptr_t)pVM->pSession);
754	pR0Logger->fRegistered = true;
755	}
756	}
757	#endif
758	int rc;
759	if (!HMR0SuspendPending())
760	{
761	rc = HMR0Enter(pVM, pVCpu);
762	if (RT_SUCCESS(rc))
763	{
764	rc = vmmR0CallRing3SetJmp(&pVCpu->vmm.s.CallRing3JmpBufR0, HMR0RunGuestCode, pVM, pVCpu); /* this may resume code. */
765	int rc2 = HMR0Leave(pVM, pVCpu);
766	AssertRC(rc2);
767	}
768	STAM_COUNTER_INC(&pVM->vmm.s.StatRunRC);
769	}
770	else
771	{
772	/* System is about to go into suspend mode; go back to ring 3. */
773	rc = VINF_EM_RAW_INTERRUPT;
774	}
775	pVCpu->vmm.s.iLastGZRc = rc;
776
777	ASMAtomicWriteU32(&pVCpu->idHostCpu, NIL_RTCPUID);
778	#ifdef VBOX_WITH_VMMR0_DISABLE_PREEMPTION
779	RTThreadPreemptRestore(&PreemptState);
780	#elif !defined(RT_OS_WINDOWS)
781	ASMSetFlags(uFlags);
782	#endif
783
784	#ifdef VBOX_WITH_STATISTICS
785	vmmR0RecordRC(pVM, pVCpu, rc);
786	#endif
787	/* No special action required for external interrupts, just return. */
788	break;
789	}
790
791	/*
792	* For profiling.
793	*/
794	case VMMR0_DO_NOP:
795	pVCpu->vmm.s.iLastGZRc = VINF_SUCCESS;
796	break;
797
798	/*
799	* Impossible.
800	*/
801	default:
802	AssertMsgFailed(("%#x\n", enmOperation));
803	pVCpu->vmm.s.iLastGZRc = VERR_NOT_SUPPORTED;
804	break;
805	}
806	}
807
808
809	/**
810	* Validates a session or VM session argument.
811	*
812	* @returns true / false accordingly.
813	* @param pVM Pointer to the VM.
814	* @param pSession The session argument.
815	*/
816	DECLINLINE(bool) vmmR0IsValidSession(PVM pVM, PSUPDRVSESSION pClaimedSession, PSUPDRVSESSION pSession)
817	{
818	/* This must be set! */
819	if (!pSession)
820	return false;
821
822	/* Only one out of the two. */
823	if (pVM && pClaimedSession)
824	return false;
825	if (pVM)
826	pClaimedSession = pVM->pSession;
827	return pClaimedSession == pSession;
828	}
829
830
831	/**
832	* VMMR0EntryEx worker function, either called directly or when ever possible
833	* called thru a longjmp so we can exit safely on failure.
834	*
835	* @returns VBox status code.
836	* @param pVM Pointer to the VM.
837	* @param idCpu Virtual CPU ID argument. Must be NIL_VMCPUID if pVM
838	* is NIL_RTR0PTR, and may be NIL_VMCPUID if it isn't
839	* @param enmOperation Which operation to execute.
840	* @param pReqHdr This points to a SUPVMMR0REQHDR packet. Optional.
841	* The support driver validates this if it's present.
842	* @param u64Arg Some simple constant argument.
843	* @param pSession The session of the caller.
844	* @remarks Assume called with interrupts _enabled_.
845	*/
846	static int vmmR0EntryExWorker(PVM pVM, VMCPUID idCpu, VMMR0OPERATION enmOperation, PSUPVMMR0REQHDR pReqHdr, uint64_t u64Arg, PSUPDRVSESSION pSession)
847	{
848	/*
849	* Common VM pointer validation.
850	*/
851	if (pVM)
852	{
853	if (RT_UNLIKELY( !VALID_PTR(pVM)
854	\|\| ((uintptr_t)pVM & PAGE_OFFSET_MASK)))
855	{
856	SUPR0Printf("vmmR0EntryExWorker: Invalid pVM=%p! (op=%d)\n", pVM, enmOperation);
857	return VERR_INVALID_POINTER;
858	}
859	if (RT_UNLIKELY( pVM->enmVMState < VMSTATE_CREATING
860	\|\| pVM->enmVMState > VMSTATE_TERMINATED
861	\|\| pVM->pVMR0 != pVM))
862	{
863	SUPR0Printf("vmmR0EntryExWorker: Invalid pVM=%p:{enmVMState=%d, .pVMR0=%p}! (op=%d)\n",
864	pVM, pVM->enmVMState, pVM->pVMR0, enmOperation);
865	return VERR_INVALID_POINTER;
866	}
867
868	if (RT_UNLIKELY(idCpu >= pVM->cCpus && idCpu != NIL_VMCPUID))
869	{
870	SUPR0Printf("vmmR0EntryExWorker: Invalid idCpu (%u vs cCpus=%u)\n", idCpu, pVM->cCpus);
871	return VERR_INVALID_PARAMETER;
872	}
873	}
874	else if (RT_UNLIKELY(idCpu != NIL_VMCPUID))
875	{
876	SUPR0Printf("vmmR0EntryExWorker: Invalid idCpu=%u\n", idCpu);
877	return VERR_INVALID_PARAMETER;
878	}
879
880
881	switch (enmOperation)
882	{
883	/*
884	* GVM requests
885	*/
886	case VMMR0_DO_GVMM_CREATE_VM:
887	if (pVM \|\| u64Arg \|\| idCpu != NIL_VMCPUID)
888	return VERR_INVALID_PARAMETER;
889	return GVMMR0CreateVMReq((PGVMMCREATEVMREQ)pReqHdr);
890
891	case VMMR0_DO_GVMM_DESTROY_VM:
892	if (pReqHdr \|\| u64Arg)
893	return VERR_INVALID_PARAMETER;
894	return GVMMR0DestroyVM(pVM);
895
896	case VMMR0_DO_GVMM_REGISTER_VMCPU:
897	{
898	if (!pVM)
899	return VERR_INVALID_PARAMETER;
900	return GVMMR0RegisterVCpu(pVM, idCpu);
901	}
902
903	case VMMR0_DO_GVMM_SCHED_HALT:
904	if (pReqHdr)
905	return VERR_INVALID_PARAMETER;
906	return GVMMR0SchedHalt(pVM, idCpu, u64Arg);
907
908	case VMMR0_DO_GVMM_SCHED_WAKE_UP:
909	if (pReqHdr \|\| u64Arg)
910	return VERR_INVALID_PARAMETER;
911	return GVMMR0SchedWakeUp(pVM, idCpu);
912
913	case VMMR0_DO_GVMM_SCHED_POKE:
914	if (pReqHdr \|\| u64Arg)
915	return VERR_INVALID_PARAMETER;
916	return GVMMR0SchedPoke(pVM, idCpu);
917
918	case VMMR0_DO_GVMM_SCHED_WAKE_UP_AND_POKE_CPUS:
919	if (u64Arg)
920	return VERR_INVALID_PARAMETER;
921	return GVMMR0SchedWakeUpAndPokeCpusReq(pVM, (PGVMMSCHEDWAKEUPANDPOKECPUSREQ)pReqHdr);
922
923	case VMMR0_DO_GVMM_SCHED_POLL:
924	if (pReqHdr \|\| u64Arg > 1)
925	return VERR_INVALID_PARAMETER;
926	return GVMMR0SchedPoll(pVM, idCpu, !!u64Arg);
927
928	case VMMR0_DO_GVMM_QUERY_STATISTICS:
929	if (u64Arg)
930	return VERR_INVALID_PARAMETER;
931	return GVMMR0QueryStatisticsReq(pVM, (PGVMMQUERYSTATISTICSSREQ)pReqHdr);
932
933	case VMMR0_DO_GVMM_RESET_STATISTICS:
934	if (u64Arg)
935	return VERR_INVALID_PARAMETER;
936	return GVMMR0ResetStatisticsReq(pVM, (PGVMMRESETSTATISTICSSREQ)pReqHdr);
937
938	/*
939	* Initialize the R0 part of a VM instance.
940	*/
941	case VMMR0_DO_VMMR0_INIT:
942	return vmmR0InitVM(pVM, (uint32_t)u64Arg);
943
944	/*
945	* Terminate the R0 part of a VM instance.
946	*/
947	case VMMR0_DO_VMMR0_TERM:
948	return VMMR0TermVM(pVM, NULL);
949
950	/*
951	* Attempt to enable hm mode and check the current setting.
952	*/
953	case VMMR0_DO_HM_ENABLE:
954	return HMR0EnableAllCpus(pVM);
955
956	/*
957	* Setup the hardware accelerated session.
958	*/
959	case VMMR0_DO_HM_SETUP_VM:
960	return HMR0SetupVM(pVM);
961
962	/*
963	* Switch to RC to execute Hypervisor function.
964	*/
965	case VMMR0_DO_CALL_HYPERVISOR:
966	{
967	int rc;
968	bool fVTxDisabled;
969
970	#ifndef VBOX_WITH_2X_4GB_ADDR_SPACE_IN_R0
971	if (RT_UNLIKELY(!PGMGetHyperCR3(VMMGetCpu0(pVM))))
972	return VERR_PGM_NO_CR3_SHADOW_ROOT;
973	#endif
974
975	RTCCUINTREG fFlags = ASMIntDisableFlags();
976
977	#ifdef VBOX_WITH_VMMR0_DISABLE_LAPIC_NMI
978	RTCPUID idHostCpu = RTMpCpuId();
979	CPUMR0SetLApic(pVM, idHostCpu);
980	#endif
981
982	/* We might need to disable VT-x if the active switcher turns off paging. */
983	rc = HMR0EnterSwitcher(pVM, pVM->vmm.s.enmSwitcher, &fVTxDisabled);
984	if (RT_FAILURE(rc))
985	return rc;
986
987	rc = pVM->vmm.s.pfnR0ToRawMode(pVM);
988
989	/* Re-enable VT-x if previously turned off. */
990	HMR0LeaveSwitcher(pVM, fVTxDisabled);
991
992	/** @todo dispatch interrupts? */
993	ASMSetFlags(fFlags);
994	return rc;
995	}
996
997	/*
998	* PGM wrappers.
999	*/
1000	case VMMR0_DO_PGM_ALLOCATE_HANDY_PAGES:
1001	if (idCpu == NIL_VMCPUID)
1002	return VERR_INVALID_CPU_ID;
1003	return PGMR0PhysAllocateHandyPages(pVM, &pVM->aCpus[idCpu]);
1004
1005	case VMMR0_DO_PGM_FLUSH_HANDY_PAGES:
1006	if (idCpu == NIL_VMCPUID)
1007	return VERR_INVALID_CPU_ID;
1008	return PGMR0PhysFlushHandyPages(pVM, &pVM->aCpus[idCpu]);
1009
1010	case VMMR0_DO_PGM_ALLOCATE_LARGE_HANDY_PAGE:
1011	if (idCpu == NIL_VMCPUID)
1012	return VERR_INVALID_CPU_ID;
1013	return PGMR0PhysAllocateLargeHandyPage(pVM, &pVM->aCpus[idCpu]);
1014
1015	case VMMR0_DO_PGM_PHYS_SETUP_IOMMU:
1016	if (idCpu != 0)
1017	return VERR_INVALID_CPU_ID;
1018	return PGMR0PhysSetupIommu(pVM);
1019
1020	/*
1021	* GMM wrappers.
1022	*/
1023	case VMMR0_DO_GMM_INITIAL_RESERVATION:
1024	if (u64Arg)
1025	return VERR_INVALID_PARAMETER;
1026	return GMMR0InitialReservationReq(pVM, idCpu, (PGMMINITIALRESERVATIONREQ)pReqHdr);
1027
1028	case VMMR0_DO_GMM_UPDATE_RESERVATION:
1029	if (u64Arg)
1030	return VERR_INVALID_PARAMETER;
1031	return GMMR0UpdateReservationReq(pVM, idCpu, (PGMMUPDATERESERVATIONREQ)pReqHdr);
1032
1033	case VMMR0_DO_GMM_ALLOCATE_PAGES:
1034	if (u64Arg)
1035	return VERR_INVALID_PARAMETER;
1036	return GMMR0AllocatePagesReq(pVM, idCpu, (PGMMALLOCATEPAGESREQ)pReqHdr);
1037
1038	case VMMR0_DO_GMM_FREE_PAGES:
1039	if (u64Arg)
1040	return VERR_INVALID_PARAMETER;
1041	return GMMR0FreePagesReq(pVM, idCpu, (PGMMFREEPAGESREQ)pReqHdr);
1042
1043	case VMMR0_DO_GMM_FREE_LARGE_PAGE:
1044	if (u64Arg)
1045	return VERR_INVALID_PARAMETER;
1046	return GMMR0FreeLargePageReq(pVM, idCpu, (PGMMFREELARGEPAGEREQ)pReqHdr);
1047
1048	case VMMR0_DO_GMM_QUERY_HYPERVISOR_MEM_STATS:
1049	if (u64Arg)
1050	return VERR_INVALID_PARAMETER;
1051	return GMMR0QueryHypervisorMemoryStatsReq(pVM, (PGMMMEMSTATSREQ)pReqHdr);
1052
1053	case VMMR0_DO_GMM_QUERY_MEM_STATS:
1054	if (idCpu == NIL_VMCPUID)
1055	return VERR_INVALID_CPU_ID;
1056	if (u64Arg)
1057	return VERR_INVALID_PARAMETER;
1058	return GMMR0QueryMemoryStatsReq(pVM, idCpu, (PGMMMEMSTATSREQ)pReqHdr);
1059
1060	case VMMR0_DO_GMM_BALLOONED_PAGES:
1061	if (u64Arg)
1062	return VERR_INVALID_PARAMETER;
1063	return GMMR0BalloonedPagesReq(pVM, idCpu, (PGMMBALLOONEDPAGESREQ)pReqHdr);
1064
1065	case VMMR0_DO_GMM_MAP_UNMAP_CHUNK:
1066	if (u64Arg)
1067	return VERR_INVALID_PARAMETER;
1068	return GMMR0MapUnmapChunkReq(pVM, (PGMMMAPUNMAPCHUNKREQ)pReqHdr);
1069
1070	case VMMR0_DO_GMM_SEED_CHUNK:
1071	if (pReqHdr)
1072	return VERR_INVALID_PARAMETER;
1073	return GMMR0SeedChunk(pVM, idCpu, (RTR3PTR)u64Arg);
1074
1075	case VMMR0_DO_GMM_REGISTER_SHARED_MODULE:
1076	if (idCpu == NIL_VMCPUID)
1077	return VERR_INVALID_CPU_ID;
1078	if (u64Arg)
1079	return VERR_INVALID_PARAMETER;
1080	return GMMR0RegisterSharedModuleReq(pVM, idCpu, (PGMMREGISTERSHAREDMODULEREQ)pReqHdr);
1081
1082	case VMMR0_DO_GMM_UNREGISTER_SHARED_MODULE:
1083	if (idCpu == NIL_VMCPUID)
1084	return VERR_INVALID_CPU_ID;
1085	if (u64Arg)
1086	return VERR_INVALID_PARAMETER;
1087	return GMMR0UnregisterSharedModuleReq(pVM, idCpu, (PGMMUNREGISTERSHAREDMODULEREQ)pReqHdr);
1088
1089	case VMMR0_DO_GMM_RESET_SHARED_MODULES:
1090	if (idCpu == NIL_VMCPUID)
1091	return VERR_INVALID_CPU_ID;
1092	if ( u64Arg
1093	\|\| pReqHdr)
1094	return VERR_INVALID_PARAMETER;
1095	return GMMR0ResetSharedModules(pVM, idCpu);
1096
1097	#ifdef VBOX_WITH_PAGE_SHARING
1098	case VMMR0_DO_GMM_CHECK_SHARED_MODULES:
1099	{
1100	if (idCpu == NIL_VMCPUID)
1101	return VERR_INVALID_CPU_ID;
1102	if ( u64Arg
1103	\|\| pReqHdr)
1104	return VERR_INVALID_PARAMETER;
1105
1106	PVMCPU pVCpu = &pVM->aCpus[idCpu];
1107	Assert(pVCpu->hNativeThreadR0 == RTThreadNativeSelf());
1108
1109	# ifdef DEBUG_sandervl
1110	/* Make sure that log flushes can jump back to ring-3; annoying to get an incomplete log (this is risky though as the code doesn't take this into account). */
1111	/* Todo: this can have bad side effects for unexpected jumps back to r3. */
1112	int rc = GMMR0CheckSharedModulesStart(pVM);
1113	if (rc == VINF_SUCCESS)
1114	{
1115	rc = vmmR0CallRing3SetJmp(&pVCpu->vmm.s.CallRing3JmpBufR0, GMMR0CheckSharedModules, pVM, pVCpu); /* this may resume code. */
1116	Assert( rc == VINF_SUCCESS
1117	\|\| (rc == VINF_VMM_CALL_HOST && pVCpu->vmm.s.enmCallRing3Operation == VMMCALLRING3_VMM_LOGGER_FLUSH));
1118	GMMR0CheckSharedModulesEnd(pVM);
1119	}
1120	# else
1121	int rc = GMMR0CheckSharedModules(pVM, pVCpu);
1122	# endif
1123	return rc;
1124	}
1125	#endif
1126
1127	#if defined(VBOX_STRICT) && HC_ARCH_BITS == 64
1128	case VMMR0_DO_GMM_FIND_DUPLICATE_PAGE:
1129	if (u64Arg)
1130	return VERR_INVALID_PARAMETER;
1131	return GMMR0FindDuplicatePageReq(pVM, (PGMMFINDDUPLICATEPAGEREQ)pReqHdr);
1132	#endif
1133
1134	case VMMR0_DO_GMM_QUERY_STATISTICS:
1135	if (u64Arg)
1136	return VERR_INVALID_PARAMETER;
1137	return GMMR0QueryStatisticsReq(pVM, (PGMMQUERYSTATISTICSSREQ)pReqHdr);
1138
1139	case VMMR0_DO_GMM_RESET_STATISTICS:
1140	if (u64Arg)
1141	return VERR_INVALID_PARAMETER;
1142	return GMMR0ResetStatisticsReq(pVM, (PGMMRESETSTATISTICSSREQ)pReqHdr);
1143
1144	/*
1145	* A quick GCFGM mock-up.
1146	*/
1147	/** @todo GCFGM with proper access control, ring-3 management interface and all that. */
1148	case VMMR0_DO_GCFGM_SET_VALUE:
1149	case VMMR0_DO_GCFGM_QUERY_VALUE:
1150	{
1151	if (pVM \|\| !pReqHdr \|\| u64Arg \|\| idCpu != NIL_VMCPUID)
1152	return VERR_INVALID_PARAMETER;
1153	PGCFGMVALUEREQ pReq = (PGCFGMVALUEREQ)pReqHdr;
1154	if (pReq->Hdr.cbReq != sizeof(*pReq))
1155	return VERR_INVALID_PARAMETER;
1156	int rc;
1157	if (enmOperation == VMMR0_DO_GCFGM_SET_VALUE)
1158	{
1159	rc = GVMMR0SetConfig(pReq->pSession, &pReq->szName[0], pReq->u64Value);
1160	//if (rc == VERR_CFGM_VALUE_NOT_FOUND)
1161	// rc = GMMR0SetConfig(pReq->pSession, &pReq->szName[0], pReq->u64Value);
1162	}
1163	else
1164	{
1165	rc = GVMMR0QueryConfig(pReq->pSession, &pReq->szName[0], &pReq->u64Value);
1166	//if (rc == VERR_CFGM_VALUE_NOT_FOUND)
1167	// rc = GMMR0QueryConfig(pReq->pSession, &pReq->szName[0], &pReq->u64Value);
1168	}
1169	return rc;
1170	}
1171
1172	/*
1173	* PDM Wrappers.
1174	*/
1175	case VMMR0_DO_PDM_DRIVER_CALL_REQ_HANDLER:
1176	{
1177	if (!pVM \|\| !pReqHdr \|\| u64Arg \|\| idCpu != NIL_VMCPUID)
1178	return VERR_INVALID_PARAMETER;
1179	return PDMR0DriverCallReqHandler(pVM, (PPDMDRIVERCALLREQHANDLERREQ)pReqHdr);
1180	}
1181
1182	case VMMR0_DO_PDM_DEVICE_CALL_REQ_HANDLER:
1183	{
1184	if (!pVM \|\| !pReqHdr \|\| u64Arg \|\| idCpu != NIL_VMCPUID)
1185	return VERR_INVALID_PARAMETER;
1186	return PDMR0DeviceCallReqHandler(pVM, (PPDMDEVICECALLREQHANDLERREQ)pReqHdr);
1187	}
1188
1189	/*
1190	* Requests to the internal networking service.
1191	*/
1192	case VMMR0_DO_INTNET_OPEN:
1193	{
1194	PINTNETOPENREQ pReq = (PINTNETOPENREQ)pReqHdr;
1195	if (u64Arg \|\| !pReq \|\| !vmmR0IsValidSession(pVM, pReq->pSession, pSession) \|\| idCpu != NIL_VMCPUID)
1196	return VERR_INVALID_PARAMETER;
1197	return IntNetR0OpenReq(pSession, pReq);
1198	}
1199
1200	case VMMR0_DO_INTNET_IF_CLOSE:
1201	if (u64Arg \|\| !pReqHdr \|\| !vmmR0IsValidSession(pVM, ((PINTNETIFCLOSEREQ)pReqHdr)->pSession, pSession) \|\| idCpu != NIL_VMCPUID)
1202	return VERR_INVALID_PARAMETER;
1203	return IntNetR0IfCloseReq(pSession, (PINTNETIFCLOSEREQ)pReqHdr);
1204
1205	case VMMR0_DO_INTNET_IF_GET_BUFFER_PTRS:
1206	if (u64Arg \|\| !pReqHdr \|\| !vmmR0IsValidSession(pVM, ((PINTNETIFGETBUFFERPTRSREQ)pReqHdr)->pSession, pSession) \|\| idCpu != NIL_VMCPUID)
1207	return VERR_INVALID_PARAMETER;
1208	return IntNetR0IfGetBufferPtrsReq(pSession, (PINTNETIFGETBUFFERPTRSREQ)pReqHdr);
1209
1210	case VMMR0_DO_INTNET_IF_SET_PROMISCUOUS_MODE:
1211	if (u64Arg \|\| !pReqHdr \|\| !vmmR0IsValidSession(pVM, ((PINTNETIFSETPROMISCUOUSMODEREQ)pReqHdr)->pSession, pSession) \|\| idCpu != NIL_VMCPUID)
1212	return VERR_INVALID_PARAMETER;
1213	return IntNetR0IfSetPromiscuousModeReq(pSession, (PINTNETIFSETPROMISCUOUSMODEREQ)pReqHdr);
1214
1215	case VMMR0_DO_INTNET_IF_SET_MAC_ADDRESS:
1216	if (u64Arg \|\| !pReqHdr \|\| !vmmR0IsValidSession(pVM, ((PINTNETIFSETMACADDRESSREQ)pReqHdr)->pSession, pSession) \|\| idCpu != NIL_VMCPUID)
1217	return VERR_INVALID_PARAMETER;
1218	return IntNetR0IfSetMacAddressReq(pSession, (PINTNETIFSETMACADDRESSREQ)pReqHdr);
1219
1220	case VMMR0_DO_INTNET_IF_SET_ACTIVE:
1221	if (u64Arg \|\| !pReqHdr \|\| !vmmR0IsValidSession(pVM, ((PINTNETIFSETACTIVEREQ)pReqHdr)->pSession, pSession) \|\| idCpu != NIL_VMCPUID)
1222	return VERR_INVALID_PARAMETER;
1223	return IntNetR0IfSetActiveReq(pSession, (PINTNETIFSETACTIVEREQ)pReqHdr);
1224
1225	case VMMR0_DO_INTNET_IF_SEND:
1226	if (u64Arg \|\| !pReqHdr \|\| !vmmR0IsValidSession(pVM, ((PINTNETIFSENDREQ)pReqHdr)->pSession, pSession) \|\| idCpu != NIL_VMCPUID)
1227	return VERR_INVALID_PARAMETER;
1228	return IntNetR0IfSendReq(pSession, (PINTNETIFSENDREQ)pReqHdr);
1229
1230	case VMMR0_DO_INTNET_IF_WAIT:
1231	if (u64Arg \|\| !pReqHdr \|\| !vmmR0IsValidSession(pVM, ((PINTNETIFWAITREQ)pReqHdr)->pSession, pSession) \|\| idCpu != NIL_VMCPUID)
1232	return VERR_INVALID_PARAMETER;
1233	return IntNetR0IfWaitReq(pSession, (PINTNETIFWAITREQ)pReqHdr);
1234
1235	case VMMR0_DO_INTNET_IF_ABORT_WAIT:
1236	if (u64Arg \|\| !pReqHdr \|\| !vmmR0IsValidSession(pVM, ((PINTNETIFWAITREQ)pReqHdr)->pSession, pSession) \|\| idCpu != NIL_VMCPUID)
1237	return VERR_INVALID_PARAMETER;
1238	return IntNetR0IfAbortWaitReq(pSession, (PINTNETIFABORTWAITREQ)pReqHdr);
1239
1240	#ifdef VBOX_WITH_PCI_PASSTHROUGH
1241	/*
1242	* Requests to host PCI driver service.
1243	*/
1244	case VMMR0_DO_PCIRAW_REQ:
1245	if (u64Arg \|\| !pReqHdr \|\| !vmmR0IsValidSession(pVM, ((PPCIRAWSENDREQ)pReqHdr)->pSession, pSession) \|\| idCpu != NIL_VMCPUID)
1246	return VERR_INVALID_PARAMETER;
1247	return PciRawR0ProcessReq(pSession, pVM, (PPCIRAWSENDREQ)pReqHdr);
1248	#endif
1249	/*
1250	* For profiling.
1251	*/
1252	case VMMR0_DO_NOP:
1253	case VMMR0_DO_SLOW_NOP:
1254	return VINF_SUCCESS;
1255
1256	/*
1257	* For testing Ring-0 APIs invoked in this environment.
1258	*/
1259	case VMMR0_DO_TESTS:
1260	/** @todo make new test */
1261	return VINF_SUCCESS;
1262
1263
1264	#if HC_ARCH_BITS == 32 && defined(VBOX_WITH_64_BITS_GUESTS) && !defined(VBOX_WITH_HYBRID_32BIT_KERNEL)
1265	case VMMR0_DO_TEST_SWITCHER3264:
1266	if (idCpu == NIL_VMCPUID)
1267	return VERR_INVALID_CPU_ID;
1268	return HMR0TestSwitcher3264(pVM);
1269	#endif
1270	default:
1271	/*
1272	* We're returning VERR_NOT_SUPPORT here so we've got something else
1273	* than -1 which the interrupt gate glue code might return.
1274	*/
1275	Log(("operation %#x is not supported\n", enmOperation));
1276	return VERR_NOT_SUPPORTED;
1277	}
1278	}
1279
1280
1281	/**
1282	* Argument for vmmR0EntryExWrapper containing the arguments for VMMR0EntryEx.
1283	*/
1284	typedef struct VMMR0ENTRYEXARGS
1285	{
1286	PVM pVM;
1287	VMCPUID idCpu;
1288	VMMR0OPERATION enmOperation;
1289	PSUPVMMR0REQHDR pReq;
1290	uint64_t u64Arg;
1291	PSUPDRVSESSION pSession;
1292	} VMMR0ENTRYEXARGS;
1293	/** Pointer to a vmmR0EntryExWrapper argument package. */
1294	typedef VMMR0ENTRYEXARGS *PVMMR0ENTRYEXARGS;
1295
1296	/**
1297	* This is just a longjmp wrapper function for VMMR0EntryEx calls.
1298	*
1299	* @returns VBox status code.
1300	* @param pvArgs The argument package
1301	*/
1302	static DECLCALLBACK(int) vmmR0EntryExWrapper(void *pvArgs)
1303	{
1304	return vmmR0EntryExWorker(((PVMMR0ENTRYEXARGS)pvArgs)->pVM,
1305	((PVMMR0ENTRYEXARGS)pvArgs)->idCpu,
1306	((PVMMR0ENTRYEXARGS)pvArgs)->enmOperation,
1307	((PVMMR0ENTRYEXARGS)pvArgs)->pReq,
1308	((PVMMR0ENTRYEXARGS)pvArgs)->u64Arg,
1309	((PVMMR0ENTRYEXARGS)pvArgs)->pSession);
1310	}
1311
1312
1313	/**
1314	* The Ring 0 entry point, called by the support library (SUP).
1315	*
1316	* @returns VBox status code.
1317	* @param pVM Pointer to the VM.
1318	* @param idCpu Virtual CPU ID argument. Must be NIL_VMCPUID if pVM
1319	* is NIL_RTR0PTR, and may be NIL_VMCPUID if it isn't
1320	* @param enmOperation Which operation to execute.
1321	* @param pReq Pointer to the SUPVMMR0REQHDR packet. Optional.
1322	* @param u64Arg Some simple constant argument.
1323	* @param pSession The session of the caller.
1324	* @remarks Assume called with interrupts _enabled_.
1325	*/
1326	VMMR0DECL(int) VMMR0EntryEx(PVM pVM, VMCPUID idCpu, VMMR0OPERATION enmOperation, PSUPVMMR0REQHDR pReq, uint64_t u64Arg, PSUPDRVSESSION pSession)
1327	{
1328	/*
1329	* Requests that should only happen on the EMT thread will be
1330	* wrapped in a setjmp so we can assert without causing trouble.
1331	*/
1332	if ( VALID_PTR(pVM)
1333	&& pVM->pVMR0
1334	&& idCpu < pVM->cCpus)
1335	{
1336	switch (enmOperation)
1337	{
1338	/* These might/will be called before VMMR3Init. */
1339	case VMMR0_DO_GMM_INITIAL_RESERVATION:
1340	case VMMR0_DO_GMM_UPDATE_RESERVATION:
1341	case VMMR0_DO_GMM_ALLOCATE_PAGES:
1342	case VMMR0_DO_GMM_FREE_PAGES:
1343	case VMMR0_DO_GMM_BALLOONED_PAGES:
1344	/* On the mac we might not have a valid jmp buf, so check these as well. */
1345	case VMMR0_DO_VMMR0_INIT:
1346	case VMMR0_DO_VMMR0_TERM:
1347	{
1348	PVMCPU pVCpu = &pVM->aCpus[idCpu];
1349
1350	if (!pVCpu->vmm.s.CallRing3JmpBufR0.pvSavedStack)
1351	break;
1352
1353	/** @todo validate this EMT claim... GVM knows. */
1354	VMMR0ENTRYEXARGS Args;
1355	Args.pVM = pVM;
1356	Args.idCpu = idCpu;
1357	Args.enmOperation = enmOperation;
1358	Args.pReq = pReq;
1359	Args.u64Arg = u64Arg;
1360	Args.pSession = pSession;
1361	return vmmR0CallRing3SetJmpEx(&pVCpu->vmm.s.CallRing3JmpBufR0, vmmR0EntryExWrapper, &Args);
1362	}
1363
1364	default:
1365	break;
1366	}
1367	}
1368	return vmmR0EntryExWorker(pVM, idCpu, enmOperation, pReq, u64Arg, pSession);
1369	}
1370
1371	/**
1372	* Internal R0 logger worker: Flush logger.
1373	*
1374	* @param pLogger The logger instance to flush.
1375	* @remark This function must be exported!
1376	*/
1377	VMMR0DECL(void) vmmR0LoggerFlush(PRTLOGGER pLogger)
1378	{
1379	#ifdef LOG_ENABLED
1380	/*
1381	* Convert the pLogger into a VM handle and 'call' back to Ring-3.
1382	* (This is a bit paranoid code.)
1383	*/
1384	PVMMR0LOGGER pR0Logger = (PVMMR0LOGGER)((uintptr_t)pLogger - RT_OFFSETOF(VMMR0LOGGER, Logger));
1385	if ( !VALID_PTR(pR0Logger)
1386	\|\| !VALID_PTR(pR0Logger + 1)
1387	\|\| pLogger->u32Magic != RTLOGGER_MAGIC)
1388	{
1389	# ifdef DEBUG
1390	SUPR0Printf("vmmR0LoggerFlush: pLogger=%p!\n", pLogger);
1391	# endif
1392	return;
1393	}
1394	if (pR0Logger->fFlushingDisabled)
1395	return; /* quietly */
1396
1397	PVM pVM = pR0Logger->pVM;
1398	if ( !VALID_PTR(pVM)
1399	\|\| pVM->pVMR0 != pVM)
1400	{
1401	# ifdef DEBUG
1402	SUPR0Printf("vmmR0LoggerFlush: pVM=%p! pVMR0=%p! pLogger=%p\n", pVM, pVM->pVMR0, pLogger);
1403	# endif
1404	return;
1405	}
1406
1407	PVMCPU pVCpu = VMMGetCpu(pVM);
1408	if (pVCpu)
1409	{
1410	/*
1411	* Check that the jump buffer is armed.
1412	*/
1413	# ifdef RT_ARCH_X86
1414	if ( !pVCpu->vmm.s.CallRing3JmpBufR0.eip
1415	\|\| pVCpu->vmm.s.CallRing3JmpBufR0.fInRing3Call)
1416	# else
1417	if ( !pVCpu->vmm.s.CallRing3JmpBufR0.rip
1418	\|\| pVCpu->vmm.s.CallRing3JmpBufR0.fInRing3Call)
1419	# endif
1420	{
1421	# ifdef DEBUG
1422	SUPR0Printf("vmmR0LoggerFlush: Jump buffer isn't armed!\n");
1423	# endif
1424	return;
1425	}
1426	VMMRZCallRing3(pVM, pVCpu, VMMCALLRING3_VMM_LOGGER_FLUSH, 0);
1427	}
1428	# ifdef DEBUG
1429	else
1430	SUPR0Printf("vmmR0LoggerFlush: invalid VCPU context!\n");
1431	# endif
1432	#endif
1433	}
1434
1435	/**
1436	* Internal R0 logger worker: Custom prefix.
1437	*
1438	* @returns Number of chars written.
1439	*
1440	* @param pLogger The logger instance.
1441	* @param pchBuf The output buffer.
1442	* @param cchBuf The size of the buffer.
1443	* @param pvUser User argument (ignored).
1444	*/
1445	VMMR0DECL(size_t) vmmR0LoggerPrefix(PRTLOGGER pLogger, char pchBuf, size_t cchBuf, void pvUser)
1446	{
1447	NOREF(pvUser);
1448	#ifdef LOG_ENABLED
1449	PVMMR0LOGGER pR0Logger = (PVMMR0LOGGER)((uintptr_t)pLogger - RT_OFFSETOF(VMMR0LOGGER, Logger));
1450	if ( !VALID_PTR(pR0Logger)
1451	\|\| !VALID_PTR(pR0Logger + 1)
1452	\|\| pLogger->u32Magic != RTLOGGER_MAGIC
1453	\|\| cchBuf < 2)
1454	return 0;
1455
1456	static const char s_szHex[17] = "0123456789abcdef";
1457	VMCPUID const idCpu = pR0Logger->idCpu;
1458	pchBuf[1] = s_szHex[ idCpu & 15];
1459	pchBuf[0] = s_szHex[(idCpu >> 4) & 15];
1460
1461	return 2;
1462	#else
1463	return 0;
1464	#endif
1465	}
1466
1467	#ifdef LOG_ENABLED
1468
1469	/**
1470	* Disables flushing of the ring-0 debug log.
1471	*
1472	* @param pVCpu Pointer to the VMCPU.
1473	*/
1474	VMMR0DECL(void) VMMR0LogFlushDisable(PVMCPU pVCpu)
1475	{
1476	if (pVCpu->vmm.s.pR0LoggerR0)
1477	pVCpu->vmm.s.pR0LoggerR0->fFlushingDisabled = true;
1478	}
1479
1480
1481	/**
1482	* Enables flushing of the ring-0 debug log.
1483	*
1484	* @param pVCpu Pointer to the VMCPU.
1485	*/
1486	VMMR0DECL(void) VMMR0LogFlushEnable(PVMCPU pVCpu)
1487	{
1488	if (pVCpu->vmm.s.pR0LoggerR0)
1489	pVCpu->vmm.s.pR0LoggerR0->fFlushingDisabled = false;
1490	}
1491
1492
1493	/**
1494	* Checks if log flushing is disabled or not.
1495	*
1496	* @param pVCpu Pointer to the VMCPU.
1497	*/
1498	VMMR0DECL(bool) VMMR0IsLogFlushDisabled(PVMCPU pVCpu)
1499	{
1500	if (pVCpu->vmm.s.pR0LoggerR0)
1501	return pVCpu->vmm.s.pR0LoggerR0->fFlushingDisabled;
1502	return true;
1503	}
1504	#endif /* LOG_ENABLED */
1505
1506	/**
1507	* Jump back to ring-3 if we're the EMT and the longjmp is armed.
1508	*
1509	* @returns true if the breakpoint should be hit, false if it should be ignored.
1510	*/
1511	DECLEXPORT(bool) RTCALL RTAssertShouldPanic(void)
1512	{
1513	#if 0
1514	return true;
1515	#else
1516	PVM pVM = GVMMR0GetVMByEMT(NIL_RTNATIVETHREAD);
1517	if (pVM)
1518	{
1519	PVMCPU pVCpu = VMMGetCpu(pVM);
1520
1521	if (pVCpu)
1522	{
1523	#ifdef RT_ARCH_X86
1524	if ( pVCpu->vmm.s.CallRing3JmpBufR0.eip
1525	&& !pVCpu->vmm.s.CallRing3JmpBufR0.fInRing3Call)
1526	#else
1527	if ( pVCpu->vmm.s.CallRing3JmpBufR0.rip
1528	&& !pVCpu->vmm.s.CallRing3JmpBufR0.fInRing3Call)
1529	#endif
1530	{
1531	int rc = VMMRZCallRing3(pVM, pVCpu, VMMCALLRING3_VM_R0_ASSERTION, 0);
1532	return RT_FAILURE_NP(rc);
1533	}
1534	}
1535	}
1536	#ifdef RT_OS_LINUX
1537	return true;
1538	#else
1539	return false;
1540	#endif
1541	#endif
1542	}
1543
1544
1545	/**
1546	* Override this so we can push it up to ring-3.
1547	*
1548	* @param pszExpr Expression. Can be NULL.
1549	* @param uLine Location line number.
1550	* @param pszFile Location file name.
1551	* @param pszFunction Location function name.
1552	*/
1553	DECLEXPORT(void) RTCALL RTAssertMsg1Weak(const char pszExpr, unsigned uLine, const char pszFile, const char *pszFunction)
1554	{
1555	/*
1556	* To the log.
1557	*/
1558	LogAlways(("\n!!R0-Assertion Failed!!\n"
1559	"Expression: %s\n"
1560	"Location : %s(%d) %s\n",
1561	pszExpr, pszFile, uLine, pszFunction));
1562
1563	/*
1564	* To the global VMM buffer.
1565	*/
1566	PVM pVM = GVMMR0GetVMByEMT(NIL_RTNATIVETHREAD);
1567	if (pVM)
1568	RTStrPrintf(pVM->vmm.s.szRing0AssertMsg1, sizeof(pVM->vmm.s.szRing0AssertMsg1),
1569	"\n!!R0-Assertion Failed!!\n"
1570	"Expression: %s\n"
1571	"Location : %s(%d) %s\n",
1572	pszExpr, pszFile, uLine, pszFunction);
1573
1574	/*
1575	* Continue the normal way.
1576	*/
1577	RTAssertMsg1(pszExpr, uLine, pszFile, pszFunction);
1578	}
1579
1580
1581	/**
1582	* Callback for RTLogFormatV which writes to the ring-3 log port.
1583	* See PFNLOGOUTPUT() for details.
1584	*/
1585	static DECLCALLBACK(size_t) rtLogOutput(void pv, const char pachChars, size_t cbChars)
1586	{
1587	for (size_t i = 0; i < cbChars; i++)
1588	LogAlways(("%c", pachChars[i]));
1589
1590	NOREF(pv);
1591	return cbChars;
1592	}
1593
1594
1595	/**
1596	* Override this so we can push it up to ring-3.
1597	*
1598	* @param pszFormat The format string.
1599	* @param va Arguments.
1600	*/
1601	DECLEXPORT(void) RTCALL RTAssertMsg2WeakV(const char *pszFormat, va_list va)
1602	{
1603	va_list vaCopy;
1604
1605	/*
1606	* Push the message to the logger.
1607	*/
1608	PRTLOGGER pLog = RTLogDefaultInstance(); /** @todo we want this for release as well! */
1609	if (pLog)
1610	{
1611	va_copy(vaCopy, va);
1612	RTLogFormatV(rtLogOutput, pLog, pszFormat, vaCopy);
1613	va_end(vaCopy);
1614	}
1615
1616	/*
1617	* Push it to the global VMM buffer.
1618	*/
1619	PVM pVM = GVMMR0GetVMByEMT(NIL_RTNATIVETHREAD);
1620	if (pVM)
1621	{
1622	va_copy(vaCopy, va);
1623	RTStrPrintfV(pVM->vmm.s.szRing0AssertMsg2, sizeof(pVM->vmm.s.szRing0AssertMsg2), pszFormat, vaCopy);
1624	va_end(vaCopy);
1625	}
1626
1627	/*
1628	* Continue the normal way.
1629	*/
1630	RTAssertMsg2V(pszFormat, va);
1631	}
1632

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source: vbox/trunk/src/VBox/VMM/VMMR0/VMMR0.cpp@ 45747

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