VMMR0.cpp@ 46310

Last change on this file since 46310 was 45934, checked in by vboxsync, 12 years ago
VMMR0.cpp/RTAssertMsg2WeakV: Don't instantiate the debug logger, just use it when present. Instead, check for the release logger as well.
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File size: 56.5 KB

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1	/* $Id: VMMR0.cpp 45934 2013-05-07 12:50:12Z 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	VMCPU_SET_STATE(pVCpu, VMCPUSTATE_STARTED_HM);
765
766	rc = vmmR0CallRing3SetJmp(&pVCpu->vmm.s.CallRing3JmpBufR0, HMR0RunGuestCode, pVM, pVCpu); /* this may resume code. */
767	int rc2 = HMR0Leave(pVM, pVCpu);
768	AssertRC(rc2);
769
770	if (RT_UNLIKELY( VMCPU_GET_STATE(pVCpu) != VMCPUSTATE_STARTED_HM
771	&& RT_SUCCESS_NP(rc) && rc != VINF_VMM_CALL_HOST ))
772	{
773	/* Manual assert as normal assertions are going to crash in this case. */
774	pVM->vmm.s.szRing0AssertMsg1[0] = '\0';
775	RTStrPrintf(pVM->vmm.s.szRing0AssertMsg2, sizeof(pVM->vmm.s.szRing0AssertMsg2),
776	"Got VMCPU state %d expected %d.\n", VMCPU_GET_STATE(pVCpu), VMCPUSTATE_STARTED_HM);
777	rc = VERR_VMM_WRONG_HM_VMCPU_STATE;
778	}
779	VMCPU_SET_STATE(pVCpu, VMCPUSTATE_STARTED);
780	}
781	STAM_COUNTER_INC(&pVM->vmm.s.StatRunRC);
782	}
783	else
784	{
785	/* System is about to go into suspend mode; go back to ring 3. */
786	rc = VINF_EM_RAW_INTERRUPT;
787	}
788	pVCpu->vmm.s.iLastGZRc = rc;
789
790	ASMAtomicWriteU32(&pVCpu->idHostCpu, NIL_RTCPUID);
791	#ifdef VBOX_WITH_VMMR0_DISABLE_PREEMPTION
792	RTThreadPreemptRestore(&PreemptState);
793	#elif !defined(RT_OS_WINDOWS)
794	ASMSetFlags(uFlags);
795	#endif
796
797	#ifdef VBOX_WITH_STATISTICS
798	vmmR0RecordRC(pVM, pVCpu, rc);
799	#endif
800	/* No special action required for external interrupts, just return. */
801	break;
802	}
803
804	/*
805	* For profiling.
806	*/
807	case VMMR0_DO_NOP:
808	pVCpu->vmm.s.iLastGZRc = VINF_SUCCESS;
809	break;
810
811	/*
812	* Impossible.
813	*/
814	default:
815	AssertMsgFailed(("%#x\n", enmOperation));
816	pVCpu->vmm.s.iLastGZRc = VERR_NOT_SUPPORTED;
817	break;
818	}
819	}
820
821
822	/**
823	* Validates a session or VM session argument.
824	*
825	* @returns true / false accordingly.
826	* @param pVM Pointer to the VM.
827	* @param pSession The session argument.
828	*/
829	DECLINLINE(bool) vmmR0IsValidSession(PVM pVM, PSUPDRVSESSION pClaimedSession, PSUPDRVSESSION pSession)
830	{
831	/* This must be set! */
832	if (!pSession)
833	return false;
834
835	/* Only one out of the two. */
836	if (pVM && pClaimedSession)
837	return false;
838	if (pVM)
839	pClaimedSession = pVM->pSession;
840	return pClaimedSession == pSession;
841	}
842
843
844	/**
845	* VMMR0EntryEx worker function, either called directly or when ever possible
846	* called thru a longjmp so we can exit safely on failure.
847	*
848	* @returns VBox status code.
849	* @param pVM Pointer to the VM.
850	* @param idCpu Virtual CPU ID argument. Must be NIL_VMCPUID if pVM
851	* is NIL_RTR0PTR, and may be NIL_VMCPUID if it isn't
852	* @param enmOperation Which operation to execute.
853	* @param pReqHdr This points to a SUPVMMR0REQHDR packet. Optional.
854	* The support driver validates this if it's present.
855	* @param u64Arg Some simple constant argument.
856	* @param pSession The session of the caller.
857	* @remarks Assume called with interrupts _enabled_.
858	*/
859	static int vmmR0EntryExWorker(PVM pVM, VMCPUID idCpu, VMMR0OPERATION enmOperation, PSUPVMMR0REQHDR pReqHdr, uint64_t u64Arg, PSUPDRVSESSION pSession)
860	{
861	/*
862	* Common VM pointer validation.
863	*/
864	if (pVM)
865	{
866	if (RT_UNLIKELY( !VALID_PTR(pVM)
867	\|\| ((uintptr_t)pVM & PAGE_OFFSET_MASK)))
868	{
869	SUPR0Printf("vmmR0EntryExWorker: Invalid pVM=%p! (op=%d)\n", pVM, enmOperation);
870	return VERR_INVALID_POINTER;
871	}
872	if (RT_UNLIKELY( pVM->enmVMState < VMSTATE_CREATING
873	\|\| pVM->enmVMState > VMSTATE_TERMINATED
874	\|\| pVM->pVMR0 != pVM))
875	{
876	SUPR0Printf("vmmR0EntryExWorker: Invalid pVM=%p:{enmVMState=%d, .pVMR0=%p}! (op=%d)\n",
877	pVM, pVM->enmVMState, pVM->pVMR0, enmOperation);
878	return VERR_INVALID_POINTER;
879	}
880
881	if (RT_UNLIKELY(idCpu >= pVM->cCpus && idCpu != NIL_VMCPUID))
882	{
883	SUPR0Printf("vmmR0EntryExWorker: Invalid idCpu (%u vs cCpus=%u)\n", idCpu, pVM->cCpus);
884	return VERR_INVALID_PARAMETER;
885	}
886	}
887	else if (RT_UNLIKELY(idCpu != NIL_VMCPUID))
888	{
889	SUPR0Printf("vmmR0EntryExWorker: Invalid idCpu=%u\n", idCpu);
890	return VERR_INVALID_PARAMETER;
891	}
892
893
894	switch (enmOperation)
895	{
896	/*
897	* GVM requests
898	*/
899	case VMMR0_DO_GVMM_CREATE_VM:
900	if (pVM \|\| u64Arg \|\| idCpu != NIL_VMCPUID)
901	return VERR_INVALID_PARAMETER;
902	return GVMMR0CreateVMReq((PGVMMCREATEVMREQ)pReqHdr);
903
904	case VMMR0_DO_GVMM_DESTROY_VM:
905	if (pReqHdr \|\| u64Arg)
906	return VERR_INVALID_PARAMETER;
907	return GVMMR0DestroyVM(pVM);
908
909	case VMMR0_DO_GVMM_REGISTER_VMCPU:
910	{
911	if (!pVM)
912	return VERR_INVALID_PARAMETER;
913	return GVMMR0RegisterVCpu(pVM, idCpu);
914	}
915
916	case VMMR0_DO_GVMM_SCHED_HALT:
917	if (pReqHdr)
918	return VERR_INVALID_PARAMETER;
919	return GVMMR0SchedHalt(pVM, idCpu, u64Arg);
920
921	case VMMR0_DO_GVMM_SCHED_WAKE_UP:
922	if (pReqHdr \|\| u64Arg)
923	return VERR_INVALID_PARAMETER;
924	return GVMMR0SchedWakeUp(pVM, idCpu);
925
926	case VMMR0_DO_GVMM_SCHED_POKE:
927	if (pReqHdr \|\| u64Arg)
928	return VERR_INVALID_PARAMETER;
929	return GVMMR0SchedPoke(pVM, idCpu);
930
931	case VMMR0_DO_GVMM_SCHED_WAKE_UP_AND_POKE_CPUS:
932	if (u64Arg)
933	return VERR_INVALID_PARAMETER;
934	return GVMMR0SchedWakeUpAndPokeCpusReq(pVM, (PGVMMSCHEDWAKEUPANDPOKECPUSREQ)pReqHdr);
935
936	case VMMR0_DO_GVMM_SCHED_POLL:
937	if (pReqHdr \|\| u64Arg > 1)
938	return VERR_INVALID_PARAMETER;
939	return GVMMR0SchedPoll(pVM, idCpu, !!u64Arg);
940
941	case VMMR0_DO_GVMM_QUERY_STATISTICS:
942	if (u64Arg)
943	return VERR_INVALID_PARAMETER;
944	return GVMMR0QueryStatisticsReq(pVM, (PGVMMQUERYSTATISTICSSREQ)pReqHdr);
945
946	case VMMR0_DO_GVMM_RESET_STATISTICS:
947	if (u64Arg)
948	return VERR_INVALID_PARAMETER;
949	return GVMMR0ResetStatisticsReq(pVM, (PGVMMRESETSTATISTICSSREQ)pReqHdr);
950
951	/*
952	* Initialize the R0 part of a VM instance.
953	*/
954	case VMMR0_DO_VMMR0_INIT:
955	return vmmR0InitVM(pVM, (uint32_t)u64Arg);
956
957	/*
958	* Terminate the R0 part of a VM instance.
959	*/
960	case VMMR0_DO_VMMR0_TERM:
961	return VMMR0TermVM(pVM, NULL);
962
963	/*
964	* Attempt to enable hm mode and check the current setting.
965	*/
966	case VMMR0_DO_HM_ENABLE:
967	return HMR0EnableAllCpus(pVM);
968
969	/*
970	* Setup the hardware accelerated session.
971	*/
972	case VMMR0_DO_HM_SETUP_VM:
973	return HMR0SetupVM(pVM);
974
975	/*
976	* Switch to RC to execute Hypervisor function.
977	*/
978	case VMMR0_DO_CALL_HYPERVISOR:
979	{
980	int rc;
981	bool fVTxDisabled;
982
983	#ifndef VBOX_WITH_2X_4GB_ADDR_SPACE_IN_R0
984	if (RT_UNLIKELY(!PGMGetHyperCR3(VMMGetCpu0(pVM))))
985	return VERR_PGM_NO_CR3_SHADOW_ROOT;
986	#endif
987
988	RTCCUINTREG fFlags = ASMIntDisableFlags();
989
990	#ifdef VBOX_WITH_VMMR0_DISABLE_LAPIC_NMI
991	RTCPUID idHostCpu = RTMpCpuId();
992	CPUMR0SetLApic(pVM, idHostCpu);
993	#endif
994
995	/* We might need to disable VT-x if the active switcher turns off paging. */
996	rc = HMR0EnterSwitcher(pVM, pVM->vmm.s.enmSwitcher, &fVTxDisabled);
997	if (RT_FAILURE(rc))
998	return rc;
999
1000	rc = pVM->vmm.s.pfnR0ToRawMode(pVM);
1001
1002	/* Re-enable VT-x if previously turned off. */
1003	HMR0LeaveSwitcher(pVM, fVTxDisabled);
1004
1005	/** @todo dispatch interrupts? */
1006	ASMSetFlags(fFlags);
1007	return rc;
1008	}
1009
1010	/*
1011	* PGM wrappers.
1012	*/
1013	case VMMR0_DO_PGM_ALLOCATE_HANDY_PAGES:
1014	if (idCpu == NIL_VMCPUID)
1015	return VERR_INVALID_CPU_ID;
1016	return PGMR0PhysAllocateHandyPages(pVM, &pVM->aCpus[idCpu]);
1017
1018	case VMMR0_DO_PGM_FLUSH_HANDY_PAGES:
1019	if (idCpu == NIL_VMCPUID)
1020	return VERR_INVALID_CPU_ID;
1021	return PGMR0PhysFlushHandyPages(pVM, &pVM->aCpus[idCpu]);
1022
1023	case VMMR0_DO_PGM_ALLOCATE_LARGE_HANDY_PAGE:
1024	if (idCpu == NIL_VMCPUID)
1025	return VERR_INVALID_CPU_ID;
1026	return PGMR0PhysAllocateLargeHandyPage(pVM, &pVM->aCpus[idCpu]);
1027
1028	case VMMR0_DO_PGM_PHYS_SETUP_IOMMU:
1029	if (idCpu != 0)
1030	return VERR_INVALID_CPU_ID;
1031	return PGMR0PhysSetupIommu(pVM);
1032
1033	/*
1034	* GMM wrappers.
1035	*/
1036	case VMMR0_DO_GMM_INITIAL_RESERVATION:
1037	if (u64Arg)
1038	return VERR_INVALID_PARAMETER;
1039	return GMMR0InitialReservationReq(pVM, idCpu, (PGMMINITIALRESERVATIONREQ)pReqHdr);
1040
1041	case VMMR0_DO_GMM_UPDATE_RESERVATION:
1042	if (u64Arg)
1043	return VERR_INVALID_PARAMETER;
1044	return GMMR0UpdateReservationReq(pVM, idCpu, (PGMMUPDATERESERVATIONREQ)pReqHdr);
1045
1046	case VMMR0_DO_GMM_ALLOCATE_PAGES:
1047	if (u64Arg)
1048	return VERR_INVALID_PARAMETER;
1049	return GMMR0AllocatePagesReq(pVM, idCpu, (PGMMALLOCATEPAGESREQ)pReqHdr);
1050
1051	case VMMR0_DO_GMM_FREE_PAGES:
1052	if (u64Arg)
1053	return VERR_INVALID_PARAMETER;
1054	return GMMR0FreePagesReq(pVM, idCpu, (PGMMFREEPAGESREQ)pReqHdr);
1055
1056	case VMMR0_DO_GMM_FREE_LARGE_PAGE:
1057	if (u64Arg)
1058	return VERR_INVALID_PARAMETER;
1059	return GMMR0FreeLargePageReq(pVM, idCpu, (PGMMFREELARGEPAGEREQ)pReqHdr);
1060
1061	case VMMR0_DO_GMM_QUERY_HYPERVISOR_MEM_STATS:
1062	if (u64Arg)
1063	return VERR_INVALID_PARAMETER;
1064	return GMMR0QueryHypervisorMemoryStatsReq(pVM, (PGMMMEMSTATSREQ)pReqHdr);
1065
1066	case VMMR0_DO_GMM_QUERY_MEM_STATS:
1067	if (idCpu == NIL_VMCPUID)
1068	return VERR_INVALID_CPU_ID;
1069	if (u64Arg)
1070	return VERR_INVALID_PARAMETER;
1071	return GMMR0QueryMemoryStatsReq(pVM, idCpu, (PGMMMEMSTATSREQ)pReqHdr);
1072
1073	case VMMR0_DO_GMM_BALLOONED_PAGES:
1074	if (u64Arg)
1075	return VERR_INVALID_PARAMETER;
1076	return GMMR0BalloonedPagesReq(pVM, idCpu, (PGMMBALLOONEDPAGESREQ)pReqHdr);
1077
1078	case VMMR0_DO_GMM_MAP_UNMAP_CHUNK:
1079	if (u64Arg)
1080	return VERR_INVALID_PARAMETER;
1081	return GMMR0MapUnmapChunkReq(pVM, (PGMMMAPUNMAPCHUNKREQ)pReqHdr);
1082
1083	case VMMR0_DO_GMM_SEED_CHUNK:
1084	if (pReqHdr)
1085	return VERR_INVALID_PARAMETER;
1086	return GMMR0SeedChunk(pVM, idCpu, (RTR3PTR)u64Arg);
1087
1088	case VMMR0_DO_GMM_REGISTER_SHARED_MODULE:
1089	if (idCpu == NIL_VMCPUID)
1090	return VERR_INVALID_CPU_ID;
1091	if (u64Arg)
1092	return VERR_INVALID_PARAMETER;
1093	return GMMR0RegisterSharedModuleReq(pVM, idCpu, (PGMMREGISTERSHAREDMODULEREQ)pReqHdr);
1094
1095	case VMMR0_DO_GMM_UNREGISTER_SHARED_MODULE:
1096	if (idCpu == NIL_VMCPUID)
1097	return VERR_INVALID_CPU_ID;
1098	if (u64Arg)
1099	return VERR_INVALID_PARAMETER;
1100	return GMMR0UnregisterSharedModuleReq(pVM, idCpu, (PGMMUNREGISTERSHAREDMODULEREQ)pReqHdr);
1101
1102	case VMMR0_DO_GMM_RESET_SHARED_MODULES:
1103	if (idCpu == NIL_VMCPUID)
1104	return VERR_INVALID_CPU_ID;
1105	if ( u64Arg
1106	\|\| pReqHdr)
1107	return VERR_INVALID_PARAMETER;
1108	return GMMR0ResetSharedModules(pVM, idCpu);
1109
1110	#ifdef VBOX_WITH_PAGE_SHARING
1111	case VMMR0_DO_GMM_CHECK_SHARED_MODULES:
1112	{
1113	if (idCpu == NIL_VMCPUID)
1114	return VERR_INVALID_CPU_ID;
1115	if ( u64Arg
1116	\|\| pReqHdr)
1117	return VERR_INVALID_PARAMETER;
1118
1119	PVMCPU pVCpu = &pVM->aCpus[idCpu];
1120	Assert(pVCpu->hNativeThreadR0 == RTThreadNativeSelf());
1121
1122	# ifdef DEBUG_sandervl
1123	/* 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). */
1124	/* Todo: this can have bad side effects for unexpected jumps back to r3. */
1125	int rc = GMMR0CheckSharedModulesStart(pVM);
1126	if (rc == VINF_SUCCESS)
1127	{
1128	rc = vmmR0CallRing3SetJmp(&pVCpu->vmm.s.CallRing3JmpBufR0, GMMR0CheckSharedModules, pVM, pVCpu); /* this may resume code. */
1129	Assert( rc == VINF_SUCCESS
1130	\|\| (rc == VINF_VMM_CALL_HOST && pVCpu->vmm.s.enmCallRing3Operation == VMMCALLRING3_VMM_LOGGER_FLUSH));
1131	GMMR0CheckSharedModulesEnd(pVM);
1132	}
1133	# else
1134	int rc = GMMR0CheckSharedModules(pVM, pVCpu);
1135	# endif
1136	return rc;
1137	}
1138	#endif
1139
1140	#if defined(VBOX_STRICT) && HC_ARCH_BITS == 64
1141	case VMMR0_DO_GMM_FIND_DUPLICATE_PAGE:
1142	if (u64Arg)
1143	return VERR_INVALID_PARAMETER;
1144	return GMMR0FindDuplicatePageReq(pVM, (PGMMFINDDUPLICATEPAGEREQ)pReqHdr);
1145	#endif
1146
1147	case VMMR0_DO_GMM_QUERY_STATISTICS:
1148	if (u64Arg)
1149	return VERR_INVALID_PARAMETER;
1150	return GMMR0QueryStatisticsReq(pVM, (PGMMQUERYSTATISTICSSREQ)pReqHdr);
1151
1152	case VMMR0_DO_GMM_RESET_STATISTICS:
1153	if (u64Arg)
1154	return VERR_INVALID_PARAMETER;
1155	return GMMR0ResetStatisticsReq(pVM, (PGMMRESETSTATISTICSSREQ)pReqHdr);
1156
1157	/*
1158	* A quick GCFGM mock-up.
1159	*/
1160	/** @todo GCFGM with proper access control, ring-3 management interface and all that. */
1161	case VMMR0_DO_GCFGM_SET_VALUE:
1162	case VMMR0_DO_GCFGM_QUERY_VALUE:
1163	{
1164	if (pVM \|\| !pReqHdr \|\| u64Arg \|\| idCpu != NIL_VMCPUID)
1165	return VERR_INVALID_PARAMETER;
1166	PGCFGMVALUEREQ pReq = (PGCFGMVALUEREQ)pReqHdr;
1167	if (pReq->Hdr.cbReq != sizeof(*pReq))
1168	return VERR_INVALID_PARAMETER;
1169	int rc;
1170	if (enmOperation == VMMR0_DO_GCFGM_SET_VALUE)
1171	{
1172	rc = GVMMR0SetConfig(pReq->pSession, &pReq->szName[0], pReq->u64Value);
1173	//if (rc == VERR_CFGM_VALUE_NOT_FOUND)
1174	// rc = GMMR0SetConfig(pReq->pSession, &pReq->szName[0], pReq->u64Value);
1175	}
1176	else
1177	{
1178	rc = GVMMR0QueryConfig(pReq->pSession, &pReq->szName[0], &pReq->u64Value);
1179	//if (rc == VERR_CFGM_VALUE_NOT_FOUND)
1180	// rc = GMMR0QueryConfig(pReq->pSession, &pReq->szName[0], &pReq->u64Value);
1181	}
1182	return rc;
1183	}
1184
1185	/*
1186	* PDM Wrappers.
1187	*/
1188	case VMMR0_DO_PDM_DRIVER_CALL_REQ_HANDLER:
1189	{
1190	if (!pVM \|\| !pReqHdr \|\| u64Arg \|\| idCpu != NIL_VMCPUID)
1191	return VERR_INVALID_PARAMETER;
1192	return PDMR0DriverCallReqHandler(pVM, (PPDMDRIVERCALLREQHANDLERREQ)pReqHdr);
1193	}
1194
1195	case VMMR0_DO_PDM_DEVICE_CALL_REQ_HANDLER:
1196	{
1197	if (!pVM \|\| !pReqHdr \|\| u64Arg \|\| idCpu != NIL_VMCPUID)
1198	return VERR_INVALID_PARAMETER;
1199	return PDMR0DeviceCallReqHandler(pVM, (PPDMDEVICECALLREQHANDLERREQ)pReqHdr);
1200	}
1201
1202	/*
1203	* Requests to the internal networking service.
1204	*/
1205	case VMMR0_DO_INTNET_OPEN:
1206	{
1207	PINTNETOPENREQ pReq = (PINTNETOPENREQ)pReqHdr;
1208	if (u64Arg \|\| !pReq \|\| !vmmR0IsValidSession(pVM, pReq->pSession, pSession) \|\| idCpu != NIL_VMCPUID)
1209	return VERR_INVALID_PARAMETER;
1210	return IntNetR0OpenReq(pSession, pReq);
1211	}
1212
1213	case VMMR0_DO_INTNET_IF_CLOSE:
1214	if (u64Arg \|\| !pReqHdr \|\| !vmmR0IsValidSession(pVM, ((PINTNETIFCLOSEREQ)pReqHdr)->pSession, pSession) \|\| idCpu != NIL_VMCPUID)
1215	return VERR_INVALID_PARAMETER;
1216	return IntNetR0IfCloseReq(pSession, (PINTNETIFCLOSEREQ)pReqHdr);
1217
1218	case VMMR0_DO_INTNET_IF_GET_BUFFER_PTRS:
1219	if (u64Arg \|\| !pReqHdr \|\| !vmmR0IsValidSession(pVM, ((PINTNETIFGETBUFFERPTRSREQ)pReqHdr)->pSession, pSession) \|\| idCpu != NIL_VMCPUID)
1220	return VERR_INVALID_PARAMETER;
1221	return IntNetR0IfGetBufferPtrsReq(pSession, (PINTNETIFGETBUFFERPTRSREQ)pReqHdr);
1222
1223	case VMMR0_DO_INTNET_IF_SET_PROMISCUOUS_MODE:
1224	if (u64Arg \|\| !pReqHdr \|\| !vmmR0IsValidSession(pVM, ((PINTNETIFSETPROMISCUOUSMODEREQ)pReqHdr)->pSession, pSession) \|\| idCpu != NIL_VMCPUID)
1225	return VERR_INVALID_PARAMETER;
1226	return IntNetR0IfSetPromiscuousModeReq(pSession, (PINTNETIFSETPROMISCUOUSMODEREQ)pReqHdr);
1227
1228	case VMMR0_DO_INTNET_IF_SET_MAC_ADDRESS:
1229	if (u64Arg \|\| !pReqHdr \|\| !vmmR0IsValidSession(pVM, ((PINTNETIFSETMACADDRESSREQ)pReqHdr)->pSession, pSession) \|\| idCpu != NIL_VMCPUID)
1230	return VERR_INVALID_PARAMETER;
1231	return IntNetR0IfSetMacAddressReq(pSession, (PINTNETIFSETMACADDRESSREQ)pReqHdr);
1232
1233	case VMMR0_DO_INTNET_IF_SET_ACTIVE:
1234	if (u64Arg \|\| !pReqHdr \|\| !vmmR0IsValidSession(pVM, ((PINTNETIFSETACTIVEREQ)pReqHdr)->pSession, pSession) \|\| idCpu != NIL_VMCPUID)
1235	return VERR_INVALID_PARAMETER;
1236	return IntNetR0IfSetActiveReq(pSession, (PINTNETIFSETACTIVEREQ)pReqHdr);
1237
1238	case VMMR0_DO_INTNET_IF_SEND:
1239	if (u64Arg \|\| !pReqHdr \|\| !vmmR0IsValidSession(pVM, ((PINTNETIFSENDREQ)pReqHdr)->pSession, pSession) \|\| idCpu != NIL_VMCPUID)
1240	return VERR_INVALID_PARAMETER;
1241	return IntNetR0IfSendReq(pSession, (PINTNETIFSENDREQ)pReqHdr);
1242
1243	case VMMR0_DO_INTNET_IF_WAIT:
1244	if (u64Arg \|\| !pReqHdr \|\| !vmmR0IsValidSession(pVM, ((PINTNETIFWAITREQ)pReqHdr)->pSession, pSession) \|\| idCpu != NIL_VMCPUID)
1245	return VERR_INVALID_PARAMETER;
1246	return IntNetR0IfWaitReq(pSession, (PINTNETIFWAITREQ)pReqHdr);
1247
1248	case VMMR0_DO_INTNET_IF_ABORT_WAIT:
1249	if (u64Arg \|\| !pReqHdr \|\| !vmmR0IsValidSession(pVM, ((PINTNETIFWAITREQ)pReqHdr)->pSession, pSession) \|\| idCpu != NIL_VMCPUID)
1250	return VERR_INVALID_PARAMETER;
1251	return IntNetR0IfAbortWaitReq(pSession, (PINTNETIFABORTWAITREQ)pReqHdr);
1252
1253	#ifdef VBOX_WITH_PCI_PASSTHROUGH
1254	/*
1255	* Requests to host PCI driver service.
1256	*/
1257	case VMMR0_DO_PCIRAW_REQ:
1258	if (u64Arg \|\| !pReqHdr \|\| !vmmR0IsValidSession(pVM, ((PPCIRAWSENDREQ)pReqHdr)->pSession, pSession) \|\| idCpu != NIL_VMCPUID)
1259	return VERR_INVALID_PARAMETER;
1260	return PciRawR0ProcessReq(pSession, pVM, (PPCIRAWSENDREQ)pReqHdr);
1261	#endif
1262	/*
1263	* For profiling.
1264	*/
1265	case VMMR0_DO_NOP:
1266	case VMMR0_DO_SLOW_NOP:
1267	return VINF_SUCCESS;
1268
1269	/*
1270	* For testing Ring-0 APIs invoked in this environment.
1271	*/
1272	case VMMR0_DO_TESTS:
1273	/** @todo make new test */
1274	return VINF_SUCCESS;
1275
1276
1277	#if HC_ARCH_BITS == 32 && defined(VBOX_WITH_64_BITS_GUESTS) && !defined(VBOX_WITH_HYBRID_32BIT_KERNEL)
1278	case VMMR0_DO_TEST_SWITCHER3264:
1279	if (idCpu == NIL_VMCPUID)
1280	return VERR_INVALID_CPU_ID;
1281	return HMR0TestSwitcher3264(pVM);
1282	#endif
1283	default:
1284	/*
1285	* We're returning VERR_NOT_SUPPORT here so we've got something else
1286	* than -1 which the interrupt gate glue code might return.
1287	*/
1288	Log(("operation %#x is not supported\n", enmOperation));
1289	return VERR_NOT_SUPPORTED;
1290	}
1291	}
1292
1293
1294	/**
1295	* Argument for vmmR0EntryExWrapper containing the arguments for VMMR0EntryEx.
1296	*/
1297	typedef struct VMMR0ENTRYEXARGS
1298	{
1299	PVM pVM;
1300	VMCPUID idCpu;
1301	VMMR0OPERATION enmOperation;
1302	PSUPVMMR0REQHDR pReq;
1303	uint64_t u64Arg;
1304	PSUPDRVSESSION pSession;
1305	} VMMR0ENTRYEXARGS;
1306	/** Pointer to a vmmR0EntryExWrapper argument package. */
1307	typedef VMMR0ENTRYEXARGS *PVMMR0ENTRYEXARGS;
1308
1309	/**
1310	* This is just a longjmp wrapper function for VMMR0EntryEx calls.
1311	*
1312	* @returns VBox status code.
1313	* @param pvArgs The argument package
1314	*/
1315	static DECLCALLBACK(int) vmmR0EntryExWrapper(void *pvArgs)
1316	{
1317	return vmmR0EntryExWorker(((PVMMR0ENTRYEXARGS)pvArgs)->pVM,
1318	((PVMMR0ENTRYEXARGS)pvArgs)->idCpu,
1319	((PVMMR0ENTRYEXARGS)pvArgs)->enmOperation,
1320	((PVMMR0ENTRYEXARGS)pvArgs)->pReq,
1321	((PVMMR0ENTRYEXARGS)pvArgs)->u64Arg,
1322	((PVMMR0ENTRYEXARGS)pvArgs)->pSession);
1323	}
1324
1325
1326	/**
1327	* The Ring 0 entry point, called by the support library (SUP).
1328	*
1329	* @returns VBox status code.
1330	* @param pVM Pointer to the VM.
1331	* @param idCpu Virtual CPU ID argument. Must be NIL_VMCPUID if pVM
1332	* is NIL_RTR0PTR, and may be NIL_VMCPUID if it isn't
1333	* @param enmOperation Which operation to execute.
1334	* @param pReq Pointer to the SUPVMMR0REQHDR packet. Optional.
1335	* @param u64Arg Some simple constant argument.
1336	* @param pSession The session of the caller.
1337	* @remarks Assume called with interrupts _enabled_.
1338	*/
1339	VMMR0DECL(int) VMMR0EntryEx(PVM pVM, VMCPUID idCpu, VMMR0OPERATION enmOperation, PSUPVMMR0REQHDR pReq, uint64_t u64Arg, PSUPDRVSESSION pSession)
1340	{
1341	/*
1342	* Requests that should only happen on the EMT thread will be
1343	* wrapped in a setjmp so we can assert without causing trouble.
1344	*/
1345	if ( VALID_PTR(pVM)
1346	&& pVM->pVMR0
1347	&& idCpu < pVM->cCpus)
1348	{
1349	switch (enmOperation)
1350	{
1351	/* These might/will be called before VMMR3Init. */
1352	case VMMR0_DO_GMM_INITIAL_RESERVATION:
1353	case VMMR0_DO_GMM_UPDATE_RESERVATION:
1354	case VMMR0_DO_GMM_ALLOCATE_PAGES:
1355	case VMMR0_DO_GMM_FREE_PAGES:
1356	case VMMR0_DO_GMM_BALLOONED_PAGES:
1357	/* On the mac we might not have a valid jmp buf, so check these as well. */
1358	case VMMR0_DO_VMMR0_INIT:
1359	case VMMR0_DO_VMMR0_TERM:
1360	{
1361	PVMCPU pVCpu = &pVM->aCpus[idCpu];
1362
1363	if (!pVCpu->vmm.s.CallRing3JmpBufR0.pvSavedStack)
1364	break;
1365
1366	/** @todo validate this EMT claim... GVM knows. */
1367	VMMR0ENTRYEXARGS Args;
1368	Args.pVM = pVM;
1369	Args.idCpu = idCpu;
1370	Args.enmOperation = enmOperation;
1371	Args.pReq = pReq;
1372	Args.u64Arg = u64Arg;
1373	Args.pSession = pSession;
1374	return vmmR0CallRing3SetJmpEx(&pVCpu->vmm.s.CallRing3JmpBufR0, vmmR0EntryExWrapper, &Args);
1375	}
1376
1377	default:
1378	break;
1379	}
1380	}
1381	return vmmR0EntryExWorker(pVM, idCpu, enmOperation, pReq, u64Arg, pSession);
1382	}
1383
1384
1385	/**
1386	* Checks whether we've armed the ring-0 long jump machinery.
1387	*
1388	* @returns @c true / @c false
1389	* @param pVCpu The caller's cross context virtual CPU structure.
1390	* @thread EMT
1391	* @sa VMMIsLongJumpArmed
1392	*/
1393	VMMR0_INT_DECL(bool) VMMR0IsLongJumpArmed(PVMCPU pVCpu)
1394	{
1395	#ifdef RT_ARCH_X86
1396	return pVCpu->vmm.s.CallRing3JmpBufR0.eip
1397	&& !pVCpu->vmm.s.CallRing3JmpBufR0.fInRing3Call;
1398	#else
1399	return pVCpu->vmm.s.CallRing3JmpBufR0.rip
1400	&& !pVCpu->vmm.s.CallRing3JmpBufR0.fInRing3Call;
1401	#endif
1402	}
1403
1404
1405	/**
1406	* Internal R0 logger worker: Flush logger.
1407	*
1408	* @param pLogger The logger instance to flush.
1409	* @remark This function must be exported!
1410	*/
1411	VMMR0DECL(void) vmmR0LoggerFlush(PRTLOGGER pLogger)
1412	{
1413	#ifdef LOG_ENABLED
1414	/*
1415	* Convert the pLogger into a VM handle and 'call' back to Ring-3.
1416	* (This is a bit paranoid code.)
1417	*/
1418	PVMMR0LOGGER pR0Logger = (PVMMR0LOGGER)((uintptr_t)pLogger - RT_OFFSETOF(VMMR0LOGGER, Logger));
1419	if ( !VALID_PTR(pR0Logger)
1420	\|\| !VALID_PTR(pR0Logger + 1)
1421	\|\| pLogger->u32Magic != RTLOGGER_MAGIC)
1422	{
1423	# ifdef DEBUG
1424	SUPR0Printf("vmmR0LoggerFlush: pLogger=%p!\n", pLogger);
1425	# endif
1426	return;
1427	}
1428	if (pR0Logger->fFlushingDisabled)
1429	return; /* quietly */
1430
1431	PVM pVM = pR0Logger->pVM;
1432	if ( !VALID_PTR(pVM)
1433	\|\| pVM->pVMR0 != pVM)
1434	{
1435	# ifdef DEBUG
1436	SUPR0Printf("vmmR0LoggerFlush: pVM=%p! pVMR0=%p! pLogger=%p\n", pVM, pVM->pVMR0, pLogger);
1437	# endif
1438	return;
1439	}
1440
1441	PVMCPU pVCpu = VMMGetCpu(pVM);
1442	if (pVCpu)
1443	{
1444	/*
1445	* Check that the jump buffer is armed.
1446	*/
1447	# ifdef RT_ARCH_X86
1448	if ( !pVCpu->vmm.s.CallRing3JmpBufR0.eip
1449	\|\| pVCpu->vmm.s.CallRing3JmpBufR0.fInRing3Call)
1450	# else
1451	if ( !pVCpu->vmm.s.CallRing3JmpBufR0.rip
1452	\|\| pVCpu->vmm.s.CallRing3JmpBufR0.fInRing3Call)
1453	# endif
1454	{
1455	# ifdef DEBUG
1456	SUPR0Printf("vmmR0LoggerFlush: Jump buffer isn't armed!\n");
1457	# endif
1458	return;
1459	}
1460	VMMRZCallRing3(pVM, pVCpu, VMMCALLRING3_VMM_LOGGER_FLUSH, 0);
1461	}
1462	# ifdef DEBUG
1463	else
1464	SUPR0Printf("vmmR0LoggerFlush: invalid VCPU context!\n");
1465	# endif
1466	#endif
1467	}
1468
1469	/**
1470	* Internal R0 logger worker: Custom prefix.
1471	*
1472	* @returns Number of chars written.
1473	*
1474	* @param pLogger The logger instance.
1475	* @param pchBuf The output buffer.
1476	* @param cchBuf The size of the buffer.
1477	* @param pvUser User argument (ignored).
1478	*/
1479	VMMR0DECL(size_t) vmmR0LoggerPrefix(PRTLOGGER pLogger, char pchBuf, size_t cchBuf, void pvUser)
1480	{
1481	NOREF(pvUser);
1482	#ifdef LOG_ENABLED
1483	PVMMR0LOGGER pR0Logger = (PVMMR0LOGGER)((uintptr_t)pLogger - RT_OFFSETOF(VMMR0LOGGER, Logger));
1484	if ( !VALID_PTR(pR0Logger)
1485	\|\| !VALID_PTR(pR0Logger + 1)
1486	\|\| pLogger->u32Magic != RTLOGGER_MAGIC
1487	\|\| cchBuf < 2)
1488	return 0;
1489
1490	static const char s_szHex[17] = "0123456789abcdef";
1491	VMCPUID const idCpu = pR0Logger->idCpu;
1492	pchBuf[1] = s_szHex[ idCpu & 15];
1493	pchBuf[0] = s_szHex[(idCpu >> 4) & 15];
1494
1495	return 2;
1496	#else
1497	return 0;
1498	#endif
1499	}
1500
1501	#ifdef LOG_ENABLED
1502
1503	/**
1504	* Disables flushing of the ring-0 debug log.
1505	*
1506	* @param pVCpu Pointer to the VMCPU.
1507	*/
1508	VMMR0DECL(void) VMMR0LogFlushDisable(PVMCPU pVCpu)
1509	{
1510	if (pVCpu->vmm.s.pR0LoggerR0)
1511	pVCpu->vmm.s.pR0LoggerR0->fFlushingDisabled = true;
1512	}
1513
1514
1515	/**
1516	* Enables flushing of the ring-0 debug log.
1517	*
1518	* @param pVCpu Pointer to the VMCPU.
1519	*/
1520	VMMR0DECL(void) VMMR0LogFlushEnable(PVMCPU pVCpu)
1521	{
1522	if (pVCpu->vmm.s.pR0LoggerR0)
1523	pVCpu->vmm.s.pR0LoggerR0->fFlushingDisabled = false;
1524	}
1525
1526
1527	/**
1528	* Checks if log flushing is disabled or not.
1529	*
1530	* @param pVCpu Pointer to the VMCPU.
1531	*/
1532	VMMR0DECL(bool) VMMR0IsLogFlushDisabled(PVMCPU pVCpu)
1533	{
1534	if (pVCpu->vmm.s.pR0LoggerR0)
1535	return pVCpu->vmm.s.pR0LoggerR0->fFlushingDisabled;
1536	return true;
1537	}
1538	#endif /* LOG_ENABLED */
1539
1540	/**
1541	* Jump back to ring-3 if we're the EMT and the longjmp is armed.
1542	*
1543	* @returns true if the breakpoint should be hit, false if it should be ignored.
1544	*/
1545	DECLEXPORT(bool) RTCALL RTAssertShouldPanic(void)
1546	{
1547	#if 0
1548	return true;
1549	#else
1550	PVM pVM = GVMMR0GetVMByEMT(NIL_RTNATIVETHREAD);
1551	if (pVM)
1552	{
1553	PVMCPU pVCpu = VMMGetCpu(pVM);
1554
1555	if (pVCpu)
1556	{
1557	#ifdef RT_ARCH_X86
1558	if ( pVCpu->vmm.s.CallRing3JmpBufR0.eip
1559	&& !pVCpu->vmm.s.CallRing3JmpBufR0.fInRing3Call)
1560	#else
1561	if ( pVCpu->vmm.s.CallRing3JmpBufR0.rip
1562	&& !pVCpu->vmm.s.CallRing3JmpBufR0.fInRing3Call)
1563	#endif
1564	{
1565	int rc = VMMRZCallRing3(pVM, pVCpu, VMMCALLRING3_VM_R0_ASSERTION, 0);
1566	return RT_FAILURE_NP(rc);
1567	}
1568	}
1569	}
1570	#ifdef RT_OS_LINUX
1571	return true;
1572	#else
1573	return false;
1574	#endif
1575	#endif
1576	}
1577
1578
1579	/**
1580	* Override this so we can push it up to ring-3.
1581	*
1582	* @param pszExpr Expression. Can be NULL.
1583	* @param uLine Location line number.
1584	* @param pszFile Location file name.
1585	* @param pszFunction Location function name.
1586	*/
1587	DECLEXPORT(void) RTCALL RTAssertMsg1Weak(const char pszExpr, unsigned uLine, const char pszFile, const char *pszFunction)
1588	{
1589	/*
1590	* To the log.
1591	*/
1592	LogAlways(("\n!!R0-Assertion Failed!!\n"
1593	"Expression: %s\n"
1594	"Location : %s(%d) %s\n",
1595	pszExpr, pszFile, uLine, pszFunction));
1596
1597	/*
1598	* To the global VMM buffer.
1599	*/
1600	PVM pVM = GVMMR0GetVMByEMT(NIL_RTNATIVETHREAD);
1601	if (pVM)
1602	RTStrPrintf(pVM->vmm.s.szRing0AssertMsg1, sizeof(pVM->vmm.s.szRing0AssertMsg1),
1603	"\n!!R0-Assertion Failed!!\n"
1604	"Expression: %s\n"
1605	"Location : %s(%d) %s\n",
1606	pszExpr, pszFile, uLine, pszFunction);
1607
1608	/*
1609	* Continue the normal way.
1610	*/
1611	RTAssertMsg1(pszExpr, uLine, pszFile, pszFunction);
1612	}
1613
1614
1615	/**
1616	* Callback for RTLogFormatV which writes to the ring-3 log port.
1617	* See PFNLOGOUTPUT() for details.
1618	*/
1619	static DECLCALLBACK(size_t) rtLogOutput(void pv, const char pachChars, size_t cbChars)
1620	{
1621	for (size_t i = 0; i < cbChars; i++)
1622	LogAlways(("%c", pachChars[i]));
1623
1624	NOREF(pv);
1625	return cbChars;
1626	}
1627
1628
1629	/**
1630	* Override this so we can push it up to ring-3.
1631	*
1632	* @param pszFormat The format string.
1633	* @param va Arguments.
1634	*/
1635	DECLEXPORT(void) RTCALL RTAssertMsg2WeakV(const char *pszFormat, va_list va)
1636	{
1637	va_list vaCopy;
1638
1639	/*
1640	* Push the message to the loggers.
1641	*/
1642	PRTLOGGER pLog = RTLogGetDefaultInstance(); /* Don't initialize it here... */
1643	if (pLog)
1644	{
1645	va_copy(vaCopy, va);
1646	RTLogFormatV(rtLogOutput, pLog, pszFormat, vaCopy);
1647	va_end(vaCopy);
1648	}
1649	pLog = RTLogRelDefaultInstance();
1650	if (pLog)
1651	{
1652	va_copy(vaCopy, va);
1653	RTLogFormatV(rtLogOutput, pLog, pszFormat, vaCopy);
1654	va_end(vaCopy);
1655	}
1656
1657	/*
1658	* Push it to the global VMM buffer.
1659	*/
1660	PVM pVM = GVMMR0GetVMByEMT(NIL_RTNATIVETHREAD);
1661	if (pVM)
1662	{
1663	va_copy(vaCopy, va);
1664	RTStrPrintfV(pVM->vmm.s.szRing0AssertMsg2, sizeof(pVM->vmm.s.szRing0AssertMsg2), pszFormat, vaCopy);
1665	va_end(vaCopy);
1666	}
1667
1668	/*
1669	* Continue the normal way.
1670	*/
1671	RTAssertMsg2V(pszFormat, va);
1672	}
1673

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source: vbox/trunk/src/VBox/VMM/VMMR0/VMMR0.cpp@ 46310

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