VMMR0.cpp@ 47742

Last change on this file since 47742 was 47645, checked in by vboxsync, 11 years ago
VMM: RTThreadCtxHooksAre[Registered\|Created](). Moved it into IN_RING0 as soon we'll require PFNRTTHREADCTXHOOK.
Property svn:eol-style set to `native` Property svn:keywords set to `Id Revision`
File size: 58.4 KB

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1	/* $Id: VMMR0.cpp 47645 2013-08-09 13:47:38Z 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	* @param uBuildType Build type indicator.
267	* @thread EMT.
268	*/
269	static int vmmR0InitVM(PVM pVM, uint32_t uSvnRev, uint32_t uBuildType)
270	{
271	/*
272	* Match the SVN revisions and build type.
273	*/
274	if (uSvnRev != VMMGetSvnRev())
275	{
276	LogRel(("VMMR0InitVM: Revision mismatch, r3=%d r0=%d\n", uSvnRev, VMMGetSvnRev()));
277	SUPR0Printf("VMMR0InitVM: Revision mismatch, r3=%d r0=%d\n", uSvnRev, VMMGetSvnRev());
278	return VERR_VMM_R0_VERSION_MISMATCH;
279	}
280	if (uBuildType != vmmGetBuildType())
281	{
282	LogRel(("VMMR0InitVM: Build type mismatch, r3=%#x r0=%#x\n", uBuildType, vmmGetBuildType()));
283	SUPR0Printf("VMMR0InitVM: Build type mismatch, r3=%#x r0=%#x\n", uBuildType, vmmGetBuildType());
284	return VERR_VMM_R0_VERSION_MISMATCH;
285	}
286	if ( !VALID_PTR(pVM)
287	\|\| pVM->pVMR0 != pVM)
288	return VERR_INVALID_PARAMETER;
289
290
291	#ifdef LOG_ENABLED
292	/*
293	* Register the EMT R0 logger instance for VCPU 0.
294	*/
295	PVMCPU pVCpu = &pVM->aCpus[0];
296
297	PVMMR0LOGGER pR0Logger = pVCpu->vmm.s.pR0LoggerR0;
298	if (pR0Logger)
299	{
300	# if 0 /* testing of the logger. */
301	LogCom(("vmmR0InitVM: before %p\n", RTLogDefaultInstance()));
302	LogCom(("vmmR0InitVM: pfnFlush=%p actual=%p\n", pR0Logger->Logger.pfnFlush, vmmR0LoggerFlush));
303	LogCom(("vmmR0InitVM: pfnLogger=%p actual=%p\n", pR0Logger->Logger.pfnLogger, vmmR0LoggerWrapper));
304	LogCom(("vmmR0InitVM: offScratch=%d fFlags=%#x fDestFlags=%#x\n", pR0Logger->Logger.offScratch, pR0Logger->Logger.fFlags, pR0Logger->Logger.fDestFlags));
305
306	RTLogSetDefaultInstanceThread(&pR0Logger->Logger, (uintptr_t)pVM->pSession);
307	LogCom(("vmmR0InitVM: after %p reg\n", RTLogDefaultInstance()));
308	RTLogSetDefaultInstanceThread(NULL, pVM->pSession);
309	LogCom(("vmmR0InitVM: after %p dereg\n", RTLogDefaultInstance()));
310
311	pR0Logger->Logger.pfnLogger("hello ring-0 logger\n");
312	LogCom(("vmmR0InitVM: returned successfully from direct logger call.\n"));
313	pR0Logger->Logger.pfnFlush(&pR0Logger->Logger);
314	LogCom(("vmmR0InitVM: returned successfully from direct flush call.\n"));
315
316	RTLogSetDefaultInstanceThread(&pR0Logger->Logger, (uintptr_t)pVM->pSession);
317	LogCom(("vmmR0InitVM: after %p reg2\n", RTLogDefaultInstance()));
318	pR0Logger->Logger.pfnLogger("hello ring-0 logger\n");
319	LogCom(("vmmR0InitVM: returned successfully from direct logger call (2). offScratch=%d\n", pR0Logger->Logger.offScratch));
320	RTLogSetDefaultInstanceThread(NULL, pVM->pSession);
321	LogCom(("vmmR0InitVM: after %p dereg2\n", RTLogDefaultInstance()));
322
323	RTLogLoggerEx(&pR0Logger->Logger, 0, ~0U, "hello ring-0 logger (RTLogLoggerEx)\n");
324	LogCom(("vmmR0InitVM: RTLogLoggerEx returned fine offScratch=%d\n", pR0Logger->Logger.offScratch));
325
326	RTLogSetDefaultInstanceThread(&pR0Logger->Logger, (uintptr_t)pVM->pSession);
327	RTLogPrintf("hello ring-0 logger (RTLogPrintf)\n");
328	LogCom(("vmmR0InitVM: RTLogPrintf returned fine offScratch=%d\n", pR0Logger->Logger.offScratch));
329	# endif
330	Log(("Switching to per-thread logging instance %p (key=%p)\n", &pR0Logger->Logger, pVM->pSession));
331	RTLogSetDefaultInstanceThread(&pR0Logger->Logger, (uintptr_t)pVM->pSession);
332	pR0Logger->fRegistered = true;
333	}
334	#endif /* LOG_ENABLED */
335
336	/*
337	* Check if the host supports high resolution timers or not.
338	*/
339	if ( pVM->vmm.s.fUsePeriodicPreemptionTimers
340	&& !RTTimerCanDoHighResolution())
341	pVM->vmm.s.fUsePeriodicPreemptionTimers = false;
342
343	/*
344	* Initialize the per VM data for GVMM and GMM.
345	*/
346	int rc = GVMMR0InitVM(pVM);
347	// if (RT_SUCCESS(rc))
348	// rc = GMMR0InitPerVMData(pVM);
349	if (RT_SUCCESS(rc))
350	{
351	/*
352	* Init HM, CPUM and PGM (Darwin only).
353	*/
354	rc = HMR0InitVM(pVM);
355	if (RT_SUCCESS(rc))
356	{
357	rc = CPUMR0Init(pVM); /** @todo rename to CPUMR0InitVM */
358	if (RT_SUCCESS(rc))
359	{
360	#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
361	rc = PGMR0DynMapInitVM(pVM);
362	#endif
363	if (RT_SUCCESS(rc))
364	{
365	#ifdef VBOX_WITH_PCI_PASSTHROUGH
366	rc = PciRawR0InitVM(pVM);
367	#endif
368	if (RT_SUCCESS(rc))
369	{
370	GVMMR0DoneInitVM(pVM);
371	return rc;
372	}
373	}
374
375	/* bail out */
376	}
377	#ifdef VBOX_WITH_PCI_PASSTHROUGH
378	PciRawR0TermVM(pVM);
379	#endif
380	HMR0TermVM(pVM);
381	}
382	}
383
384
385	RTLogSetDefaultInstanceThread(NULL, (uintptr_t)pVM->pSession);
386	return rc;
387	}
388
389
390	/**
391	* Terminates the R0 bits for a particular VM instance.
392	*
393	* This is normally called by ring-3 as part of the VM termination process, but
394	* may alternatively be called during the support driver session cleanup when
395	* the VM object is destroyed (see GVMM).
396	*
397	* @returns VBox status code.
398	*
399	* @param pVM Pointer to the VM.
400	* @param pGVM Pointer to the global VM structure. Optional.
401	* @thread EMT or session clean up thread.
402	*/
403	VMMR0DECL(int) VMMR0TermVM(PVM pVM, PGVM pGVM)
404	{
405	#ifdef VBOX_WITH_PCI_PASSTHROUGH
406	PciRawR0TermVM(pVM);
407	#endif
408
409
410	/*
411	* Tell GVMM what we're up to and check that we only do this once.
412	*/
413	if (GVMMR0DoingTermVM(pVM, pGVM))
414	{
415	/** @todo I wish to call PGMR0PhysFlushHandyPages(pVM, &pVM->aCpus[idCpu])
416	* here to make sure we don't leak any shared pages if we crash... */
417	#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
418	PGMR0DynMapTermVM(pVM);
419	#endif
420	HMR0TermVM(pVM);
421	}
422
423	/*
424	* Deregister the logger.
425	*/
426	RTLogSetDefaultInstanceThread(NULL, (uintptr_t)pVM->pSession);
427	return VINF_SUCCESS;
428	}
429
430
431	/**
432	* Creates R0 thread-context hooks for the current EMT thread.
433	*
434	* @returns VBox status code.
435	*
436	* @param pVCpu Pointer to the VMCPU.
437	* @thread EMT.
438	*/
439	VMMR0DECL(int) VMMR0ThreadCtxHooksCreate(PVMCPU pVCpu)
440	{
441	VMCPU_ASSERT_EMT(pVCpu);
442	Assert(pVCpu->vmm.s.hR0ThreadCtx == NIL_RTTHREADCTX);
443	int rc = RTThreadCtxHooksCreate(&pVCpu->vmm.s.hR0ThreadCtx);
444	if ( RT_SUCCESS(rc)
445	\|\| rc == VERR_NOT_SUPPORTED)
446	{
447	return VINF_SUCCESS;
448	}
449
450	Log(("RTThreadCtxHooksCreate failed! rc=%Rrc pVCpu=%p idCpu=%RU32\n", rc, pVCpu, pVCpu->idCpu));
451	return rc;
452	}
453
454
455	/**
456	* Releases the object reference for the thread-context hook.
457	*
458	* @param pVCpu Pointer to the VMCPU.
459	* @remarks Can be called from any thread.
460	*/
461	VMMR0DECL(void) VMMR0ThreadCtxHooksRelease(PVMCPU pVCpu)
462	{
463	RTThreadCtxHooksRelease(pVCpu->vmm.s.hR0ThreadCtx);
464	}
465
466
467	/**
468	* Whether thread-context hooks are created (implying they're supported) on this
469	* platform.
470	*
471	* @returns true if the hooks are created, false otherwise.
472	* @param pVCpu Pointer to the VMCPU.
473	*
474	* @remarks Can be called from any thread.
475	*/
476	VMMR0DECL(bool) VMMR0ThreadCtxHooksAreCreated(PVMCPU pVCpu)
477	{
478	return pVCpu->vmm.s.hR0ThreadCtx != NIL_RTTHREADCTX;
479	}
480
481
482	/**
483	* Whether thread-context hooks are registered for this VCPU.
484	*
485	* @returns true if registered, false otherwise.
486	* @param pVCpu Pointer to the VMCPU.
487	*/
488	VMMR0DECL(bool) VMMR0ThreadCtxHooksAreRegistered(PVMCPU pVCpu)
489	{
490	return RTThreadCtxHooksAreRegistered(pVCpu->vmm.s.hR0ThreadCtx);
491	}
492
493
494	#ifdef VBOX_WITH_STATISTICS
495	/**
496	* Record return code statistics
497	* @param pVM Pointer to the VM.
498	* @param pVCpu Pointer to the VMCPU.
499	* @param rc The status code.
500	*/
501	static void vmmR0RecordRC(PVM pVM, PVMCPU pVCpu, int rc)
502	{
503	/*
504	* Collect statistics.
505	*/
506	switch (rc)
507	{
508	case VINF_SUCCESS:
509	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetNormal);
510	break;
511	case VINF_EM_RAW_INTERRUPT:
512	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetInterrupt);
513	break;
514	case VINF_EM_RAW_INTERRUPT_HYPER:
515	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetInterruptHyper);
516	break;
517	case VINF_EM_RAW_GUEST_TRAP:
518	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetGuestTrap);
519	break;
520	case VINF_EM_RAW_RING_SWITCH:
521	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetRingSwitch);
522	break;
523	case VINF_EM_RAW_RING_SWITCH_INT:
524	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetRingSwitchInt);
525	break;
526	case VINF_EM_RAW_STALE_SELECTOR:
527	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetStaleSelector);
528	break;
529	case VINF_EM_RAW_IRET_TRAP:
530	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetIRETTrap);
531	break;
532	case VINF_IOM_R3_IOPORT_READ:
533	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetIORead);
534	break;
535	case VINF_IOM_R3_IOPORT_WRITE:
536	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetIOWrite);
537	break;
538	case VINF_IOM_R3_MMIO_READ:
539	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetMMIORead);
540	break;
541	case VINF_IOM_R3_MMIO_WRITE:
542	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetMMIOWrite);
543	break;
544	case VINF_IOM_R3_MMIO_READ_WRITE:
545	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetMMIOReadWrite);
546	break;
547	case VINF_PATM_HC_MMIO_PATCH_READ:
548	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetMMIOPatchRead);
549	break;
550	case VINF_PATM_HC_MMIO_PATCH_WRITE:
551	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetMMIOPatchWrite);
552	break;
553	case VINF_EM_RAW_EMULATE_INSTR:
554	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetEmulate);
555	break;
556	case VINF_EM_RAW_EMULATE_IO_BLOCK:
557	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetIOBlockEmulate);
558	break;
559	case VINF_PATCH_EMULATE_INSTR:
560	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetPatchEmulate);
561	break;
562	case VINF_EM_RAW_EMULATE_INSTR_LDT_FAULT:
563	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetLDTFault);
564	break;
565	case VINF_EM_RAW_EMULATE_INSTR_GDT_FAULT:
566	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetGDTFault);
567	break;
568	case VINF_EM_RAW_EMULATE_INSTR_IDT_FAULT:
569	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetIDTFault);
570	break;
571	case VINF_EM_RAW_EMULATE_INSTR_TSS_FAULT:
572	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetTSSFault);
573	break;
574	case VINF_EM_RAW_EMULATE_INSTR_PD_FAULT:
575	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetPDFault);
576	break;
577	case VINF_CSAM_PENDING_ACTION:
578	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetCSAMTask);
579	break;
580	case VINF_PGM_SYNC_CR3:
581	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetSyncCR3);
582	break;
583	case VINF_PATM_PATCH_INT3:
584	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetPatchInt3);
585	break;
586	case VINF_PATM_PATCH_TRAP_PF:
587	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetPatchPF);
588	break;
589	case VINF_PATM_PATCH_TRAP_GP:
590	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetPatchGP);
591	break;
592	case VINF_PATM_PENDING_IRQ_AFTER_IRET:
593	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetPatchIretIRQ);
594	break;
595	case VINF_EM_RESCHEDULE_REM:
596	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetRescheduleREM);
597	break;
598	case VINF_EM_RAW_TO_R3:
599	if (VM_FF_IS_PENDING(pVM, VM_FF_TM_VIRTUAL_SYNC))
600	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetToR3TMVirt);
601	else if (VM_FF_IS_PENDING(pVM, VM_FF_PGM_NEED_HANDY_PAGES))
602	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetToR3HandyPages);
603	else if (VM_FF_IS_PENDING(pVM, VM_FF_PDM_QUEUES))
604	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetToR3PDMQueues);
605	else if (VM_FF_IS_PENDING(pVM, VM_FF_EMT_RENDEZVOUS))
606	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetToR3Rendezvous);
607	else if (VM_FF_IS_PENDING(pVM, VM_FF_PDM_DMA))
608	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetToR3DMA);
609	else if (VMCPU_FF_IS_PENDING(pVCpu, VMCPU_FF_TIMER))
610	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetToR3Timer);
611	else if (VMCPU_FF_IS_PENDING(pVCpu, VMCPU_FF_PDM_CRITSECT))
612	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetToR3CritSect);
613	else if (VMCPU_FF_IS_PENDING(pVCpu, VMCPU_FF_TO_R3))
614	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetToR3);
615	else
616	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetToR3Unknown);
617	break;
618
619	case VINF_EM_RAW_TIMER_PENDING:
620	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetTimerPending);
621	break;
622	case VINF_EM_RAW_INTERRUPT_PENDING:
623	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetInterruptPending);
624	break;
625	case VINF_VMM_CALL_HOST:
626	switch (pVCpu->vmm.s.enmCallRing3Operation)
627	{
628	case VMMCALLRING3_PDM_CRIT_SECT_ENTER:
629	STAM_COUNTER_INC(&pVM->vmm.s.StatRZCallPDMCritSectEnter);
630	break;
631	case VMMCALLRING3_PDM_LOCK:
632	STAM_COUNTER_INC(&pVM->vmm.s.StatRZCallPDMLock);
633	break;
634	case VMMCALLRING3_PGM_POOL_GROW:
635	STAM_COUNTER_INC(&pVM->vmm.s.StatRZCallPGMPoolGrow);
636	break;
637	case VMMCALLRING3_PGM_LOCK:
638	STAM_COUNTER_INC(&pVM->vmm.s.StatRZCallPGMLock);
639	break;
640	case VMMCALLRING3_PGM_MAP_CHUNK:
641	STAM_COUNTER_INC(&pVM->vmm.s.StatRZCallPGMMapChunk);
642	break;
643	case VMMCALLRING3_PGM_ALLOCATE_HANDY_PAGES:
644	STAM_COUNTER_INC(&pVM->vmm.s.StatRZCallPGMAllocHandy);
645	break;
646	case VMMCALLRING3_REM_REPLAY_HANDLER_NOTIFICATIONS:
647	STAM_COUNTER_INC(&pVM->vmm.s.StatRZCallRemReplay);
648	break;
649	case VMMCALLRING3_VMM_LOGGER_FLUSH:
650	STAM_COUNTER_INC(&pVM->vmm.s.StatRZCallLogFlush);
651	break;
652	case VMMCALLRING3_VM_SET_ERROR:
653	STAM_COUNTER_INC(&pVM->vmm.s.StatRZCallVMSetError);
654	break;
655	case VMMCALLRING3_VM_SET_RUNTIME_ERROR:
656	STAM_COUNTER_INC(&pVM->vmm.s.StatRZCallVMSetRuntimeError);
657	break;
658	case VMMCALLRING3_VM_R0_ASSERTION:
659	default:
660	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetCallRing3);
661	break;
662	}
663	break;
664	case VINF_PATM_DUPLICATE_FUNCTION:
665	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetPATMDuplicateFn);
666	break;
667	case VINF_PGM_CHANGE_MODE:
668	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetPGMChangeMode);
669	break;
670	case VINF_PGM_POOL_FLUSH_PENDING:
671	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetPGMFlushPending);
672	break;
673	case VINF_EM_PENDING_REQUEST:
674	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetPendingRequest);
675	break;
676	case VINF_EM_HM_PATCH_TPR_INSTR:
677	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetPatchTPR);
678	break;
679	default:
680	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetMisc);
681	break;
682	}
683	}
684	#endif /* VBOX_WITH_STATISTICS */
685
686
687	/**
688	* Unused ring-0 entry point that used to be called from the interrupt gate.
689	*
690	* Will be removed one of the next times we do a major SUPDrv version bump.
691	*
692	* @returns VBox status code.
693	* @param pVM Pointer to the VM.
694	* @param enmOperation Which operation to execute.
695	* @param pvArg Argument to the operation.
696	* @remarks Assume called with interrupts disabled.
697	*/
698	VMMR0DECL(int) VMMR0EntryInt(PVM pVM, VMMR0OPERATION enmOperation, void *pvArg)
699	{
700	/*
701	* We're returning VERR_NOT_SUPPORT here so we've got something else
702	* than -1 which the interrupt gate glue code might return.
703	*/
704	Log(("operation %#x is not supported\n", enmOperation));
705	NOREF(enmOperation); NOREF(pvArg); NOREF(pVM);
706	return VERR_NOT_SUPPORTED;
707	}
708
709
710	/**
711	* The Ring 0 entry point, called by the fast-ioctl path.
712	*
713	* @param pVM Pointer to the VM.
714	* The return code is stored in pVM->vmm.s.iLastGZRc.
715	* @param idCpu The Virtual CPU ID of the calling EMT.
716	* @param enmOperation Which operation to execute.
717	* @remarks Assume called with interrupts _enabled_.
718	*/
719	VMMR0DECL(void) VMMR0EntryFast(PVM pVM, VMCPUID idCpu, VMMR0OPERATION enmOperation)
720	{
721	if (RT_UNLIKELY(idCpu >= pVM->cCpus))
722	return;
723	PVMCPU pVCpu = &pVM->aCpus[idCpu];
724
725	switch (enmOperation)
726	{
727	/*
728	* Switch to GC and run guest raw mode code.
729	* Disable interrupts before doing the world switch.
730	*/
731	case VMMR0_DO_RAW_RUN:
732	{
733	#ifndef VBOX_WITH_2X_4GB_ADDR_SPACE_IN_R0
734	/* Some safety precautions first. */
735	if (RT_UNLIKELY(!PGMGetHyperCR3(pVCpu)))
736	{
737	pVCpu->vmm.s.iLastGZRc = VERR_PGM_NO_CR3_SHADOW_ROOT;
738	break;
739	}
740	#endif
741
742	/* Disable preemption and update the periodic preemption timer. */
743	RTTHREADPREEMPTSTATE PreemptState = RTTHREADPREEMPTSTATE_INITIALIZER;
744	RTThreadPreemptDisable(&PreemptState);
745	RTCPUID idHostCpu = RTMpCpuId();
746	#ifdef VBOX_WITH_VMMR0_DISABLE_LAPIC_NMI
747	CPUMR0SetLApic(pVM, idHostCpu);
748	#endif
749	ASMAtomicWriteU32(&pVCpu->idHostCpu, idHostCpu);
750	if (pVM->vmm.s.fUsePeriodicPreemptionTimers)
751	GVMMR0SchedUpdatePeriodicPreemptionTimer(pVM, pVCpu->idHostCpu, TMCalcHostTimerFrequency(pVM, pVCpu));
752
753	/* We might need to disable VT-x if the active switcher turns off paging. */
754	bool fVTxDisabled;
755	int rc = HMR0EnterSwitcher(pVM, pVM->vmm.s.enmSwitcher, &fVTxDisabled);
756	if (RT_SUCCESS(rc))
757	{
758	RTCCUINTREG uFlags = ASMIntDisableFlags();
759
760	for (;;)
761	{
762	VMCPU_SET_STATE(pVCpu, VMCPUSTATE_STARTED_EXEC);
763	TMNotifyStartOfExecution(pVCpu);
764
765	rc = pVM->vmm.s.pfnR0ToRawMode(pVM);
766	pVCpu->vmm.s.iLastGZRc = rc;
767
768	TMNotifyEndOfExecution(pVCpu);
769	VMCPU_SET_STATE(pVCpu, VMCPUSTATE_STARTED);
770
771	if (rc != VINF_VMM_CALL_TRACER)
772	break;
773	SUPR0TracerUmodProbeFire(pVM->pSession, &pVCpu->vmm.s.TracerCtx);
774	}
775
776	/* Re-enable VT-x if previously turned off. */
777	HMR0LeaveSwitcher(pVM, fVTxDisabled);
778
779	if ( rc == VINF_EM_RAW_INTERRUPT
780	\|\| rc == VINF_EM_RAW_INTERRUPT_HYPER)
781	TRPMR0DispatchHostInterrupt(pVM);
782
783	ASMSetFlags(uFlags);
784
785	#ifdef VBOX_WITH_STATISTICS
786	STAM_COUNTER_INC(&pVM->vmm.s.StatRunRC);
787	vmmR0RecordRC(pVM, pVCpu, rc);
788	#endif
789	}
790	else
791	pVCpu->vmm.s.iLastGZRc = rc;
792	ASMAtomicWriteU32(&pVCpu->idHostCpu, NIL_RTCPUID);
793	RTThreadPreemptRestore(&PreemptState);
794	break;
795	}
796
797	/*
798	* Run guest code using the available hardware acceleration technology.
799	*
800	* Disable interrupts before we do anything interesting. On Windows we avoid
801	* this by having the support driver raise the IRQL before calling us, this way
802	* we hope to get away with page faults and later calling into the kernel.
803	*/
804	case VMMR0_DO_HM_RUN:
805	{
806	#ifdef VBOX_WITH_VMMR0_DISABLE_PREEMPTION
807	RTTHREADPREEMPTSTATE PreemptState = RTTHREADPREEMPTSTATE_INITIALIZER;
808	RTThreadPreemptDisable(&PreemptState);
809	#elif !defined(RT_OS_WINDOWS)
810	RTCCUINTREG uFlags = ASMIntDisableFlags();
811	#endif
812	ASMAtomicWriteU32(&pVCpu->idHostCpu, RTMpCpuId());
813	if (pVM->vmm.s.fUsePeriodicPreemptionTimers)
814	GVMMR0SchedUpdatePeriodicPreemptionTimer(pVM, pVCpu->idHostCpu, TMCalcHostTimerFrequency(pVM, pVCpu));
815
816	#ifdef LOG_ENABLED
817	if (pVCpu->idCpu > 0)
818	{
819	/* Lazy registration of ring 0 loggers. */
820	PVMMR0LOGGER pR0Logger = pVCpu->vmm.s.pR0LoggerR0;
821	if ( pR0Logger
822	&& !pR0Logger->fRegistered)
823	{
824	RTLogSetDefaultInstanceThread(&pR0Logger->Logger, (uintptr_t)pVM->pSession);
825	pR0Logger->fRegistered = true;
826	}
827	}
828	#endif
829	int rc;
830	if (!HMR0SuspendPending())
831	{
832	rc = HMR0Enter(pVM, pVCpu);
833	if (RT_SUCCESS(rc))
834	{
835	VMCPU_SET_STATE(pVCpu, VMCPUSTATE_STARTED_HM);
836
837	rc = vmmR0CallRing3SetJmp(&pVCpu->vmm.s.CallRing3JmpBufR0, HMR0RunGuestCode, pVM, pVCpu); /* this may resume code. */
838	int rc2 = HMR0Leave(pVM, pVCpu);
839	AssertRC(rc2);
840
841	if (RT_UNLIKELY( VMCPU_GET_STATE(pVCpu) != VMCPUSTATE_STARTED_HM
842	&& RT_SUCCESS_NP(rc) && rc != VINF_VMM_CALL_HOST ))
843	{
844	/* Manual assert as normal assertions are going to crash in this case. */
845	pVM->vmm.s.szRing0AssertMsg1[0] = '\0';
846	RTStrPrintf(pVM->vmm.s.szRing0AssertMsg2, sizeof(pVM->vmm.s.szRing0AssertMsg2),
847	"Got VMCPU state %d expected %d.\n", VMCPU_GET_STATE(pVCpu), VMCPUSTATE_STARTED_HM);
848	rc = VERR_VMM_WRONG_HM_VMCPU_STATE;
849	}
850	VMCPU_SET_STATE(pVCpu, VMCPUSTATE_STARTED);
851	}
852	STAM_COUNTER_INC(&pVM->vmm.s.StatRunRC);
853	}
854	else
855	{
856	/* System is about to go into suspend mode; go back to ring 3. */
857	rc = VINF_EM_RAW_INTERRUPT;
858	}
859	pVCpu->vmm.s.iLastGZRc = rc;
860
861	ASMAtomicWriteU32(&pVCpu->idHostCpu, NIL_RTCPUID);
862	#ifdef VBOX_WITH_VMMR0_DISABLE_PREEMPTION
863	RTThreadPreemptRestore(&PreemptState);
864	#elif !defined(RT_OS_WINDOWS)
865	ASMSetFlags(uFlags);
866	#endif
867
868	#ifdef VBOX_WITH_STATISTICS
869	vmmR0RecordRC(pVM, pVCpu, rc);
870	#endif
871	/* No special action required for external interrupts, just return. */
872	break;
873	}
874
875	/*
876	* For profiling.
877	*/
878	case VMMR0_DO_NOP:
879	pVCpu->vmm.s.iLastGZRc = VINF_SUCCESS;
880	break;
881
882	/*
883	* Impossible.
884	*/
885	default:
886	AssertMsgFailed(("%#x\n", enmOperation));
887	pVCpu->vmm.s.iLastGZRc = VERR_NOT_SUPPORTED;
888	break;
889	}
890	}
891
892
893	/**
894	* Validates a session or VM session argument.
895	*
896	* @returns true / false accordingly.
897	* @param pVM Pointer to the VM.
898	* @param pSession The session argument.
899	*/
900	DECLINLINE(bool) vmmR0IsValidSession(PVM pVM, PSUPDRVSESSION pClaimedSession, PSUPDRVSESSION pSession)
901	{
902	/* This must be set! */
903	if (!pSession)
904	return false;
905
906	/* Only one out of the two. */
907	if (pVM && pClaimedSession)
908	return false;
909	if (pVM)
910	pClaimedSession = pVM->pSession;
911	return pClaimedSession == pSession;
912	}
913
914
915	/**
916	* VMMR0EntryEx worker function, either called directly or when ever possible
917	* called thru a longjmp so we can exit safely on failure.
918	*
919	* @returns VBox status code.
920	* @param pVM Pointer to the VM.
921	* @param idCpu Virtual CPU ID argument. Must be NIL_VMCPUID if pVM
922	* is NIL_RTR0PTR, and may be NIL_VMCPUID if it isn't
923	* @param enmOperation Which operation to execute.
924	* @param pReqHdr This points to a SUPVMMR0REQHDR packet. Optional.
925	* The support driver validates this if it's present.
926	* @param u64Arg Some simple constant argument.
927	* @param pSession The session of the caller.
928	* @remarks Assume called with interrupts _enabled_.
929	*/
930	static int vmmR0EntryExWorker(PVM pVM, VMCPUID idCpu, VMMR0OPERATION enmOperation, PSUPVMMR0REQHDR pReqHdr, uint64_t u64Arg, PSUPDRVSESSION pSession)
931	{
932	/*
933	* Common VM pointer validation.
934	*/
935	if (pVM)
936	{
937	if (RT_UNLIKELY( !VALID_PTR(pVM)
938	\|\| ((uintptr_t)pVM & PAGE_OFFSET_MASK)))
939	{
940	SUPR0Printf("vmmR0EntryExWorker: Invalid pVM=%p! (op=%d)\n", pVM, enmOperation);
941	return VERR_INVALID_POINTER;
942	}
943	if (RT_UNLIKELY( pVM->enmVMState < VMSTATE_CREATING
944	\|\| pVM->enmVMState > VMSTATE_TERMINATED
945	\|\| pVM->pVMR0 != pVM))
946	{
947	SUPR0Printf("vmmR0EntryExWorker: Invalid pVM=%p:{enmVMState=%d, .pVMR0=%p}! (op=%d)\n",
948	pVM, pVM->enmVMState, pVM->pVMR0, enmOperation);
949	return VERR_INVALID_POINTER;
950	}
951
952	if (RT_UNLIKELY(idCpu >= pVM->cCpus && idCpu != NIL_VMCPUID))
953	{
954	SUPR0Printf("vmmR0EntryExWorker: Invalid idCpu (%u vs cCpus=%u)\n", idCpu, pVM->cCpus);
955	return VERR_INVALID_PARAMETER;
956	}
957	}
958	else if (RT_UNLIKELY(idCpu != NIL_VMCPUID))
959	{
960	SUPR0Printf("vmmR0EntryExWorker: Invalid idCpu=%u\n", idCpu);
961	return VERR_INVALID_PARAMETER;
962	}
963
964
965	switch (enmOperation)
966	{
967	/*
968	* GVM requests
969	*/
970	case VMMR0_DO_GVMM_CREATE_VM:
971	if (pVM \|\| u64Arg \|\| idCpu != NIL_VMCPUID)
972	return VERR_INVALID_PARAMETER;
973	return GVMMR0CreateVMReq((PGVMMCREATEVMREQ)pReqHdr);
974
975	case VMMR0_DO_GVMM_DESTROY_VM:
976	if (pReqHdr \|\| u64Arg)
977	return VERR_INVALID_PARAMETER;
978	return GVMMR0DestroyVM(pVM);
979
980	case VMMR0_DO_GVMM_REGISTER_VMCPU:
981	{
982	if (!pVM)
983	return VERR_INVALID_PARAMETER;
984	return GVMMR0RegisterVCpu(pVM, idCpu);
985	}
986
987	case VMMR0_DO_GVMM_SCHED_HALT:
988	if (pReqHdr)
989	return VERR_INVALID_PARAMETER;
990	return GVMMR0SchedHalt(pVM, idCpu, u64Arg);
991
992	case VMMR0_DO_GVMM_SCHED_WAKE_UP:
993	if (pReqHdr \|\| u64Arg)
994	return VERR_INVALID_PARAMETER;
995	return GVMMR0SchedWakeUp(pVM, idCpu);
996
997	case VMMR0_DO_GVMM_SCHED_POKE:
998	if (pReqHdr \|\| u64Arg)
999	return VERR_INVALID_PARAMETER;
1000	return GVMMR0SchedPoke(pVM, idCpu);
1001
1002	case VMMR0_DO_GVMM_SCHED_WAKE_UP_AND_POKE_CPUS:
1003	if (u64Arg)
1004	return VERR_INVALID_PARAMETER;
1005	return GVMMR0SchedWakeUpAndPokeCpusReq(pVM, (PGVMMSCHEDWAKEUPANDPOKECPUSREQ)pReqHdr);
1006
1007	case VMMR0_DO_GVMM_SCHED_POLL:
1008	if (pReqHdr \|\| u64Arg > 1)
1009	return VERR_INVALID_PARAMETER;
1010	return GVMMR0SchedPoll(pVM, idCpu, !!u64Arg);
1011
1012	case VMMR0_DO_GVMM_QUERY_STATISTICS:
1013	if (u64Arg)
1014	return VERR_INVALID_PARAMETER;
1015	return GVMMR0QueryStatisticsReq(pVM, (PGVMMQUERYSTATISTICSSREQ)pReqHdr);
1016
1017	case VMMR0_DO_GVMM_RESET_STATISTICS:
1018	if (u64Arg)
1019	return VERR_INVALID_PARAMETER;
1020	return GVMMR0ResetStatisticsReq(pVM, (PGVMMRESETSTATISTICSSREQ)pReqHdr);
1021
1022	/*
1023	* Initialize the R0 part of a VM instance.
1024	*/
1025	case VMMR0_DO_VMMR0_INIT:
1026	return vmmR0InitVM(pVM, RT_LODWORD(u64Arg), RT_HIDWORD(u64Arg));
1027
1028	/*
1029	* Terminate the R0 part of a VM instance.
1030	*/
1031	case VMMR0_DO_VMMR0_TERM:
1032	return VMMR0TermVM(pVM, NULL);
1033
1034	/*
1035	* Attempt to enable hm mode and check the current setting.
1036	*/
1037	case VMMR0_DO_HM_ENABLE:
1038	return HMR0EnableAllCpus(pVM);
1039
1040	/*
1041	* Setup the hardware accelerated session.
1042	*/
1043	case VMMR0_DO_HM_SETUP_VM:
1044	return HMR0SetupVM(pVM);
1045
1046	/*
1047	* Switch to RC to execute Hypervisor function.
1048	*/
1049	case VMMR0_DO_CALL_HYPERVISOR:
1050	{
1051	int rc;
1052	bool fVTxDisabled;
1053
1054	#ifndef VBOX_WITH_2X_4GB_ADDR_SPACE_IN_R0
1055	if (RT_UNLIKELY(!PGMGetHyperCR3(VMMGetCpu0(pVM))))
1056	return VERR_PGM_NO_CR3_SHADOW_ROOT;
1057	#endif
1058
1059	RTCCUINTREG fFlags = ASMIntDisableFlags();
1060
1061	#ifdef VBOX_WITH_VMMR0_DISABLE_LAPIC_NMI
1062	RTCPUID idHostCpu = RTMpCpuId();
1063	CPUMR0SetLApic(pVM, idHostCpu);
1064	#endif
1065
1066	/* We might need to disable VT-x if the active switcher turns off paging. */
1067	rc = HMR0EnterSwitcher(pVM, pVM->vmm.s.enmSwitcher, &fVTxDisabled);
1068	if (RT_FAILURE(rc))
1069	return rc;
1070
1071	rc = pVM->vmm.s.pfnR0ToRawMode(pVM);
1072
1073	/* Re-enable VT-x if previously turned off. */
1074	HMR0LeaveSwitcher(pVM, fVTxDisabled);
1075
1076	/** @todo dispatch interrupts? */
1077	ASMSetFlags(fFlags);
1078	return rc;
1079	}
1080
1081	/*
1082	* PGM wrappers.
1083	*/
1084	case VMMR0_DO_PGM_ALLOCATE_HANDY_PAGES:
1085	if (idCpu == NIL_VMCPUID)
1086	return VERR_INVALID_CPU_ID;
1087	return PGMR0PhysAllocateHandyPages(pVM, &pVM->aCpus[idCpu]);
1088
1089	case VMMR0_DO_PGM_FLUSH_HANDY_PAGES:
1090	if (idCpu == NIL_VMCPUID)
1091	return VERR_INVALID_CPU_ID;
1092	return PGMR0PhysFlushHandyPages(pVM, &pVM->aCpus[idCpu]);
1093
1094	case VMMR0_DO_PGM_ALLOCATE_LARGE_HANDY_PAGE:
1095	if (idCpu == NIL_VMCPUID)
1096	return VERR_INVALID_CPU_ID;
1097	return PGMR0PhysAllocateLargeHandyPage(pVM, &pVM->aCpus[idCpu]);
1098
1099	case VMMR0_DO_PGM_PHYS_SETUP_IOMMU:
1100	if (idCpu != 0)
1101	return VERR_INVALID_CPU_ID;
1102	return PGMR0PhysSetupIommu(pVM);
1103
1104	/*
1105	* GMM wrappers.
1106	*/
1107	case VMMR0_DO_GMM_INITIAL_RESERVATION:
1108	if (u64Arg)
1109	return VERR_INVALID_PARAMETER;
1110	return GMMR0InitialReservationReq(pVM, idCpu, (PGMMINITIALRESERVATIONREQ)pReqHdr);
1111
1112	case VMMR0_DO_GMM_UPDATE_RESERVATION:
1113	if (u64Arg)
1114	return VERR_INVALID_PARAMETER;
1115	return GMMR0UpdateReservationReq(pVM, idCpu, (PGMMUPDATERESERVATIONREQ)pReqHdr);
1116
1117	case VMMR0_DO_GMM_ALLOCATE_PAGES:
1118	if (u64Arg)
1119	return VERR_INVALID_PARAMETER;
1120	return GMMR0AllocatePagesReq(pVM, idCpu, (PGMMALLOCATEPAGESREQ)pReqHdr);
1121
1122	case VMMR0_DO_GMM_FREE_PAGES:
1123	if (u64Arg)
1124	return VERR_INVALID_PARAMETER;
1125	return GMMR0FreePagesReq(pVM, idCpu, (PGMMFREEPAGESREQ)pReqHdr);
1126
1127	case VMMR0_DO_GMM_FREE_LARGE_PAGE:
1128	if (u64Arg)
1129	return VERR_INVALID_PARAMETER;
1130	return GMMR0FreeLargePageReq(pVM, idCpu, (PGMMFREELARGEPAGEREQ)pReqHdr);
1131
1132	case VMMR0_DO_GMM_QUERY_HYPERVISOR_MEM_STATS:
1133	if (u64Arg)
1134	return VERR_INVALID_PARAMETER;
1135	return GMMR0QueryHypervisorMemoryStatsReq(pVM, (PGMMMEMSTATSREQ)pReqHdr);
1136
1137	case VMMR0_DO_GMM_QUERY_MEM_STATS:
1138	if (idCpu == NIL_VMCPUID)
1139	return VERR_INVALID_CPU_ID;
1140	if (u64Arg)
1141	return VERR_INVALID_PARAMETER;
1142	return GMMR0QueryMemoryStatsReq(pVM, idCpu, (PGMMMEMSTATSREQ)pReqHdr);
1143
1144	case VMMR0_DO_GMM_BALLOONED_PAGES:
1145	if (u64Arg)
1146	return VERR_INVALID_PARAMETER;
1147	return GMMR0BalloonedPagesReq(pVM, idCpu, (PGMMBALLOONEDPAGESREQ)pReqHdr);
1148
1149	case VMMR0_DO_GMM_MAP_UNMAP_CHUNK:
1150	if (u64Arg)
1151	return VERR_INVALID_PARAMETER;
1152	return GMMR0MapUnmapChunkReq(pVM, (PGMMMAPUNMAPCHUNKREQ)pReqHdr);
1153
1154	case VMMR0_DO_GMM_SEED_CHUNK:
1155	if (pReqHdr)
1156	return VERR_INVALID_PARAMETER;
1157	return GMMR0SeedChunk(pVM, idCpu, (RTR3PTR)u64Arg);
1158
1159	case VMMR0_DO_GMM_REGISTER_SHARED_MODULE:
1160	if (idCpu == NIL_VMCPUID)
1161	return VERR_INVALID_CPU_ID;
1162	if (u64Arg)
1163	return VERR_INVALID_PARAMETER;
1164	return GMMR0RegisterSharedModuleReq(pVM, idCpu, (PGMMREGISTERSHAREDMODULEREQ)pReqHdr);
1165
1166	case VMMR0_DO_GMM_UNREGISTER_SHARED_MODULE:
1167	if (idCpu == NIL_VMCPUID)
1168	return VERR_INVALID_CPU_ID;
1169	if (u64Arg)
1170	return VERR_INVALID_PARAMETER;
1171	return GMMR0UnregisterSharedModuleReq(pVM, idCpu, (PGMMUNREGISTERSHAREDMODULEREQ)pReqHdr);
1172
1173	case VMMR0_DO_GMM_RESET_SHARED_MODULES:
1174	if (idCpu == NIL_VMCPUID)
1175	return VERR_INVALID_CPU_ID;
1176	if ( u64Arg
1177	\|\| pReqHdr)
1178	return VERR_INVALID_PARAMETER;
1179	return GMMR0ResetSharedModules(pVM, idCpu);
1180
1181	#ifdef VBOX_WITH_PAGE_SHARING
1182	case VMMR0_DO_GMM_CHECK_SHARED_MODULES:
1183	{
1184	if (idCpu == NIL_VMCPUID)
1185	return VERR_INVALID_CPU_ID;
1186	if ( u64Arg
1187	\|\| pReqHdr)
1188	return VERR_INVALID_PARAMETER;
1189
1190	PVMCPU pVCpu = &pVM->aCpus[idCpu];
1191	Assert(pVCpu->hNativeThreadR0 == RTThreadNativeSelf());
1192
1193	# ifdef DEBUG_sandervl
1194	/* 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). */
1195	/* Todo: this can have bad side effects for unexpected jumps back to r3. */
1196	int rc = GMMR0CheckSharedModulesStart(pVM);
1197	if (rc == VINF_SUCCESS)
1198	{
1199	rc = vmmR0CallRing3SetJmp(&pVCpu->vmm.s.CallRing3JmpBufR0, GMMR0CheckSharedModules, pVM, pVCpu); /* this may resume code. */
1200	Assert( rc == VINF_SUCCESS
1201	\|\| (rc == VINF_VMM_CALL_HOST && pVCpu->vmm.s.enmCallRing3Operation == VMMCALLRING3_VMM_LOGGER_FLUSH));
1202	GMMR0CheckSharedModulesEnd(pVM);
1203	}
1204	# else
1205	int rc = GMMR0CheckSharedModules(pVM, pVCpu);
1206	# endif
1207	return rc;
1208	}
1209	#endif
1210
1211	#if defined(VBOX_STRICT) && HC_ARCH_BITS == 64
1212	case VMMR0_DO_GMM_FIND_DUPLICATE_PAGE:
1213	if (u64Arg)
1214	return VERR_INVALID_PARAMETER;
1215	return GMMR0FindDuplicatePageReq(pVM, (PGMMFINDDUPLICATEPAGEREQ)pReqHdr);
1216	#endif
1217
1218	case VMMR0_DO_GMM_QUERY_STATISTICS:
1219	if (u64Arg)
1220	return VERR_INVALID_PARAMETER;
1221	return GMMR0QueryStatisticsReq(pVM, (PGMMQUERYSTATISTICSSREQ)pReqHdr);
1222
1223	case VMMR0_DO_GMM_RESET_STATISTICS:
1224	if (u64Arg)
1225	return VERR_INVALID_PARAMETER;
1226	return GMMR0ResetStatisticsReq(pVM, (PGMMRESETSTATISTICSSREQ)pReqHdr);
1227
1228	/*
1229	* A quick GCFGM mock-up.
1230	*/
1231	/** @todo GCFGM with proper access control, ring-3 management interface and all that. */
1232	case VMMR0_DO_GCFGM_SET_VALUE:
1233	case VMMR0_DO_GCFGM_QUERY_VALUE:
1234	{
1235	if (pVM \|\| !pReqHdr \|\| u64Arg \|\| idCpu != NIL_VMCPUID)
1236	return VERR_INVALID_PARAMETER;
1237	PGCFGMVALUEREQ pReq = (PGCFGMVALUEREQ)pReqHdr;
1238	if (pReq->Hdr.cbReq != sizeof(*pReq))
1239	return VERR_INVALID_PARAMETER;
1240	int rc;
1241	if (enmOperation == VMMR0_DO_GCFGM_SET_VALUE)
1242	{
1243	rc = GVMMR0SetConfig(pReq->pSession, &pReq->szName[0], pReq->u64Value);
1244	//if (rc == VERR_CFGM_VALUE_NOT_FOUND)
1245	// rc = GMMR0SetConfig(pReq->pSession, &pReq->szName[0], pReq->u64Value);
1246	}
1247	else
1248	{
1249	rc = GVMMR0QueryConfig(pReq->pSession, &pReq->szName[0], &pReq->u64Value);
1250	//if (rc == VERR_CFGM_VALUE_NOT_FOUND)
1251	// rc = GMMR0QueryConfig(pReq->pSession, &pReq->szName[0], &pReq->u64Value);
1252	}
1253	return rc;
1254	}
1255
1256	/*
1257	* PDM Wrappers.
1258	*/
1259	case VMMR0_DO_PDM_DRIVER_CALL_REQ_HANDLER:
1260	{
1261	if (!pVM \|\| !pReqHdr \|\| u64Arg \|\| idCpu != NIL_VMCPUID)
1262	return VERR_INVALID_PARAMETER;
1263	return PDMR0DriverCallReqHandler(pVM, (PPDMDRIVERCALLREQHANDLERREQ)pReqHdr);
1264	}
1265
1266	case VMMR0_DO_PDM_DEVICE_CALL_REQ_HANDLER:
1267	{
1268	if (!pVM \|\| !pReqHdr \|\| u64Arg \|\| idCpu != NIL_VMCPUID)
1269	return VERR_INVALID_PARAMETER;
1270	return PDMR0DeviceCallReqHandler(pVM, (PPDMDEVICECALLREQHANDLERREQ)pReqHdr);
1271	}
1272
1273	/*
1274	* Requests to the internal networking service.
1275	*/
1276	case VMMR0_DO_INTNET_OPEN:
1277	{
1278	PINTNETOPENREQ pReq = (PINTNETOPENREQ)pReqHdr;
1279	if (u64Arg \|\| !pReq \|\| !vmmR0IsValidSession(pVM, pReq->pSession, pSession) \|\| idCpu != NIL_VMCPUID)
1280	return VERR_INVALID_PARAMETER;
1281	return IntNetR0OpenReq(pSession, pReq);
1282	}
1283
1284	case VMMR0_DO_INTNET_IF_CLOSE:
1285	if (u64Arg \|\| !pReqHdr \|\| !vmmR0IsValidSession(pVM, ((PINTNETIFCLOSEREQ)pReqHdr)->pSession, pSession) \|\| idCpu != NIL_VMCPUID)
1286	return VERR_INVALID_PARAMETER;
1287	return IntNetR0IfCloseReq(pSession, (PINTNETIFCLOSEREQ)pReqHdr);
1288
1289	case VMMR0_DO_INTNET_IF_GET_BUFFER_PTRS:
1290	if (u64Arg \|\| !pReqHdr \|\| !vmmR0IsValidSession(pVM, ((PINTNETIFGETBUFFERPTRSREQ)pReqHdr)->pSession, pSession) \|\| idCpu != NIL_VMCPUID)
1291	return VERR_INVALID_PARAMETER;
1292	return IntNetR0IfGetBufferPtrsReq(pSession, (PINTNETIFGETBUFFERPTRSREQ)pReqHdr);
1293
1294	case VMMR0_DO_INTNET_IF_SET_PROMISCUOUS_MODE:
1295	if (u64Arg \|\| !pReqHdr \|\| !vmmR0IsValidSession(pVM, ((PINTNETIFSETPROMISCUOUSMODEREQ)pReqHdr)->pSession, pSession) \|\| idCpu != NIL_VMCPUID)
1296	return VERR_INVALID_PARAMETER;
1297	return IntNetR0IfSetPromiscuousModeReq(pSession, (PINTNETIFSETPROMISCUOUSMODEREQ)pReqHdr);
1298
1299	case VMMR0_DO_INTNET_IF_SET_MAC_ADDRESS:
1300	if (u64Arg \|\| !pReqHdr \|\| !vmmR0IsValidSession(pVM, ((PINTNETIFSETMACADDRESSREQ)pReqHdr)->pSession, pSession) \|\| idCpu != NIL_VMCPUID)
1301	return VERR_INVALID_PARAMETER;
1302	return IntNetR0IfSetMacAddressReq(pSession, (PINTNETIFSETMACADDRESSREQ)pReqHdr);
1303
1304	case VMMR0_DO_INTNET_IF_SET_ACTIVE:
1305	if (u64Arg \|\| !pReqHdr \|\| !vmmR0IsValidSession(pVM, ((PINTNETIFSETACTIVEREQ)pReqHdr)->pSession, pSession) \|\| idCpu != NIL_VMCPUID)
1306	return VERR_INVALID_PARAMETER;
1307	return IntNetR0IfSetActiveReq(pSession, (PINTNETIFSETACTIVEREQ)pReqHdr);
1308
1309	case VMMR0_DO_INTNET_IF_SEND:
1310	if (u64Arg \|\| !pReqHdr \|\| !vmmR0IsValidSession(pVM, ((PINTNETIFSENDREQ)pReqHdr)->pSession, pSession) \|\| idCpu != NIL_VMCPUID)
1311	return VERR_INVALID_PARAMETER;
1312	return IntNetR0IfSendReq(pSession, (PINTNETIFSENDREQ)pReqHdr);
1313
1314	case VMMR0_DO_INTNET_IF_WAIT:
1315	if (u64Arg \|\| !pReqHdr \|\| !vmmR0IsValidSession(pVM, ((PINTNETIFWAITREQ)pReqHdr)->pSession, pSession) \|\| idCpu != NIL_VMCPUID)
1316	return VERR_INVALID_PARAMETER;
1317	return IntNetR0IfWaitReq(pSession, (PINTNETIFWAITREQ)pReqHdr);
1318
1319	case VMMR0_DO_INTNET_IF_ABORT_WAIT:
1320	if (u64Arg \|\| !pReqHdr \|\| !vmmR0IsValidSession(pVM, ((PINTNETIFWAITREQ)pReqHdr)->pSession, pSession) \|\| idCpu != NIL_VMCPUID)
1321	return VERR_INVALID_PARAMETER;
1322	return IntNetR0IfAbortWaitReq(pSession, (PINTNETIFABORTWAITREQ)pReqHdr);
1323
1324	#ifdef VBOX_WITH_PCI_PASSTHROUGH
1325	/*
1326	* Requests to host PCI driver service.
1327	*/
1328	case VMMR0_DO_PCIRAW_REQ:
1329	if (u64Arg \|\| !pReqHdr \|\| !vmmR0IsValidSession(pVM, ((PPCIRAWSENDREQ)pReqHdr)->pSession, pSession) \|\| idCpu != NIL_VMCPUID)
1330	return VERR_INVALID_PARAMETER;
1331	return PciRawR0ProcessReq(pSession, pVM, (PPCIRAWSENDREQ)pReqHdr);
1332	#endif
1333	/*
1334	* For profiling.
1335	*/
1336	case VMMR0_DO_NOP:
1337	case VMMR0_DO_SLOW_NOP:
1338	return VINF_SUCCESS;
1339
1340	/*
1341	* For testing Ring-0 APIs invoked in this environment.
1342	*/
1343	case VMMR0_DO_TESTS:
1344	/** @todo make new test */
1345	return VINF_SUCCESS;
1346
1347
1348	#if HC_ARCH_BITS == 32 && defined(VBOX_WITH_64_BITS_GUESTS) && !defined(VBOX_WITH_HYBRID_32BIT_KERNEL)
1349	case VMMR0_DO_TEST_SWITCHER3264:
1350	if (idCpu == NIL_VMCPUID)
1351	return VERR_INVALID_CPU_ID;
1352	return HMR0TestSwitcher3264(pVM);
1353	#endif
1354	default:
1355	/*
1356	* We're returning VERR_NOT_SUPPORT here so we've got something else
1357	* than -1 which the interrupt gate glue code might return.
1358	*/
1359	Log(("operation %#x is not supported\n", enmOperation));
1360	return VERR_NOT_SUPPORTED;
1361	}
1362	}
1363
1364
1365	/**
1366	* Argument for vmmR0EntryExWrapper containing the arguments for VMMR0EntryEx.
1367	*/
1368	typedef struct VMMR0ENTRYEXARGS
1369	{
1370	PVM pVM;
1371	VMCPUID idCpu;
1372	VMMR0OPERATION enmOperation;
1373	PSUPVMMR0REQHDR pReq;
1374	uint64_t u64Arg;
1375	PSUPDRVSESSION pSession;
1376	} VMMR0ENTRYEXARGS;
1377	/** Pointer to a vmmR0EntryExWrapper argument package. */
1378	typedef VMMR0ENTRYEXARGS *PVMMR0ENTRYEXARGS;
1379
1380	/**
1381	* This is just a longjmp wrapper function for VMMR0EntryEx calls.
1382	*
1383	* @returns VBox status code.
1384	* @param pvArgs The argument package
1385	*/
1386	static DECLCALLBACK(int) vmmR0EntryExWrapper(void *pvArgs)
1387	{
1388	return vmmR0EntryExWorker(((PVMMR0ENTRYEXARGS)pvArgs)->pVM,
1389	((PVMMR0ENTRYEXARGS)pvArgs)->idCpu,
1390	((PVMMR0ENTRYEXARGS)pvArgs)->enmOperation,
1391	((PVMMR0ENTRYEXARGS)pvArgs)->pReq,
1392	((PVMMR0ENTRYEXARGS)pvArgs)->u64Arg,
1393	((PVMMR0ENTRYEXARGS)pvArgs)->pSession);
1394	}
1395
1396
1397	/**
1398	* The Ring 0 entry point, called by the support library (SUP).
1399	*
1400	* @returns VBox status code.
1401	* @param pVM Pointer to the VM.
1402	* @param idCpu Virtual CPU ID argument. Must be NIL_VMCPUID if pVM
1403	* is NIL_RTR0PTR, and may be NIL_VMCPUID if it isn't
1404	* @param enmOperation Which operation to execute.
1405	* @param pReq Pointer to the SUPVMMR0REQHDR packet. Optional.
1406	* @param u64Arg Some simple constant argument.
1407	* @param pSession The session of the caller.
1408	* @remarks Assume called with interrupts _enabled_.
1409	*/
1410	VMMR0DECL(int) VMMR0EntryEx(PVM pVM, VMCPUID idCpu, VMMR0OPERATION enmOperation, PSUPVMMR0REQHDR pReq, uint64_t u64Arg, PSUPDRVSESSION pSession)
1411	{
1412	/*
1413	* Requests that should only happen on the EMT thread will be
1414	* wrapped in a setjmp so we can assert without causing trouble.
1415	*/
1416	if ( VALID_PTR(pVM)
1417	&& pVM->pVMR0
1418	&& idCpu < pVM->cCpus)
1419	{
1420	switch (enmOperation)
1421	{
1422	/* These might/will be called before VMMR3Init. */
1423	case VMMR0_DO_GMM_INITIAL_RESERVATION:
1424	case VMMR0_DO_GMM_UPDATE_RESERVATION:
1425	case VMMR0_DO_GMM_ALLOCATE_PAGES:
1426	case VMMR0_DO_GMM_FREE_PAGES:
1427	case VMMR0_DO_GMM_BALLOONED_PAGES:
1428	/* On the mac we might not have a valid jmp buf, so check these as well. */
1429	case VMMR0_DO_VMMR0_INIT:
1430	case VMMR0_DO_VMMR0_TERM:
1431	{
1432	PVMCPU pVCpu = &pVM->aCpus[idCpu];
1433
1434	if (!pVCpu->vmm.s.CallRing3JmpBufR0.pvSavedStack)
1435	break;
1436
1437	/** @todo validate this EMT claim... GVM knows. */
1438	VMMR0ENTRYEXARGS Args;
1439	Args.pVM = pVM;
1440	Args.idCpu = idCpu;
1441	Args.enmOperation = enmOperation;
1442	Args.pReq = pReq;
1443	Args.u64Arg = u64Arg;
1444	Args.pSession = pSession;
1445	return vmmR0CallRing3SetJmpEx(&pVCpu->vmm.s.CallRing3JmpBufR0, vmmR0EntryExWrapper, &Args);
1446	}
1447
1448	default:
1449	break;
1450	}
1451	}
1452	return vmmR0EntryExWorker(pVM, idCpu, enmOperation, pReq, u64Arg, pSession);
1453	}
1454
1455
1456	/**
1457	* Checks whether we've armed the ring-0 long jump machinery.
1458	*
1459	* @returns @c true / @c false
1460	* @param pVCpu The caller's cross context virtual CPU structure.
1461	* @thread EMT
1462	* @sa VMMIsLongJumpArmed
1463	*/
1464	VMMR0_INT_DECL(bool) VMMR0IsLongJumpArmed(PVMCPU pVCpu)
1465	{
1466	#ifdef RT_ARCH_X86
1467	return pVCpu->vmm.s.CallRing3JmpBufR0.eip
1468	&& !pVCpu->vmm.s.CallRing3JmpBufR0.fInRing3Call;
1469	#else
1470	return pVCpu->vmm.s.CallRing3JmpBufR0.rip
1471	&& !pVCpu->vmm.s.CallRing3JmpBufR0.fInRing3Call;
1472	#endif
1473	}
1474
1475
1476	/**
1477	* Internal R0 logger worker: Flush logger.
1478	*
1479	* @param pLogger The logger instance to flush.
1480	* @remark This function must be exported!
1481	*/
1482	VMMR0DECL(void) vmmR0LoggerFlush(PRTLOGGER pLogger)
1483	{
1484	#ifdef LOG_ENABLED
1485	/*
1486	* Convert the pLogger into a VM handle and 'call' back to Ring-3.
1487	* (This is a bit paranoid code.)
1488	*/
1489	PVMMR0LOGGER pR0Logger = (PVMMR0LOGGER)((uintptr_t)pLogger - RT_OFFSETOF(VMMR0LOGGER, Logger));
1490	if ( !VALID_PTR(pR0Logger)
1491	\|\| !VALID_PTR(pR0Logger + 1)
1492	\|\| pLogger->u32Magic != RTLOGGER_MAGIC)
1493	{
1494	# ifdef DEBUG
1495	SUPR0Printf("vmmR0LoggerFlush: pLogger=%p!\n", pLogger);
1496	# endif
1497	return;
1498	}
1499	if (pR0Logger->fFlushingDisabled)
1500	return; /* quietly */
1501
1502	PVM pVM = pR0Logger->pVM;
1503	if ( !VALID_PTR(pVM)
1504	\|\| pVM->pVMR0 != pVM)
1505	{
1506	# ifdef DEBUG
1507	SUPR0Printf("vmmR0LoggerFlush: pVM=%p! pVMR0=%p! pLogger=%p\n", pVM, pVM->pVMR0, pLogger);
1508	# endif
1509	return;
1510	}
1511
1512	PVMCPU pVCpu = VMMGetCpu(pVM);
1513	if (pVCpu)
1514	{
1515	/*
1516	* Check that the jump buffer is armed.
1517	*/
1518	# ifdef RT_ARCH_X86
1519	if ( !pVCpu->vmm.s.CallRing3JmpBufR0.eip
1520	\|\| pVCpu->vmm.s.CallRing3JmpBufR0.fInRing3Call)
1521	# else
1522	if ( !pVCpu->vmm.s.CallRing3JmpBufR0.rip
1523	\|\| pVCpu->vmm.s.CallRing3JmpBufR0.fInRing3Call)
1524	# endif
1525	{
1526	# ifdef DEBUG
1527	SUPR0Printf("vmmR0LoggerFlush: Jump buffer isn't armed!\n");
1528	# endif
1529	return;
1530	}
1531	VMMRZCallRing3(pVM, pVCpu, VMMCALLRING3_VMM_LOGGER_FLUSH, 0);
1532	}
1533	# ifdef DEBUG
1534	else
1535	SUPR0Printf("vmmR0LoggerFlush: invalid VCPU context!\n");
1536	# endif
1537	#endif
1538	}
1539
1540	/**
1541	* Internal R0 logger worker: Custom prefix.
1542	*
1543	* @returns Number of chars written.
1544	*
1545	* @param pLogger The logger instance.
1546	* @param pchBuf The output buffer.
1547	* @param cchBuf The size of the buffer.
1548	* @param pvUser User argument (ignored).
1549	*/
1550	VMMR0DECL(size_t) vmmR0LoggerPrefix(PRTLOGGER pLogger, char pchBuf, size_t cchBuf, void pvUser)
1551	{
1552	NOREF(pvUser);
1553	#ifdef LOG_ENABLED
1554	PVMMR0LOGGER pR0Logger = (PVMMR0LOGGER)((uintptr_t)pLogger - RT_OFFSETOF(VMMR0LOGGER, Logger));
1555	if ( !VALID_PTR(pR0Logger)
1556	\|\| !VALID_PTR(pR0Logger + 1)
1557	\|\| pLogger->u32Magic != RTLOGGER_MAGIC
1558	\|\| cchBuf < 2)
1559	return 0;
1560
1561	static const char s_szHex[17] = "0123456789abcdef";
1562	VMCPUID const idCpu = pR0Logger->idCpu;
1563	pchBuf[1] = s_szHex[ idCpu & 15];
1564	pchBuf[0] = s_szHex[(idCpu >> 4) & 15];
1565
1566	return 2;
1567	#else
1568	return 0;
1569	#endif
1570	}
1571
1572	#ifdef LOG_ENABLED
1573
1574	/**
1575	* Disables flushing of the ring-0 debug log.
1576	*
1577	* @param pVCpu Pointer to the VMCPU.
1578	*/
1579	VMMR0DECL(void) VMMR0LogFlushDisable(PVMCPU pVCpu)
1580	{
1581	if (pVCpu->vmm.s.pR0LoggerR0)
1582	pVCpu->vmm.s.pR0LoggerR0->fFlushingDisabled = true;
1583	}
1584
1585
1586	/**
1587	* Enables flushing of the ring-0 debug log.
1588	*
1589	* @param pVCpu Pointer to the VMCPU.
1590	*/
1591	VMMR0DECL(void) VMMR0LogFlushEnable(PVMCPU pVCpu)
1592	{
1593	if (pVCpu->vmm.s.pR0LoggerR0)
1594	pVCpu->vmm.s.pR0LoggerR0->fFlushingDisabled = false;
1595	}
1596
1597
1598	/**
1599	* Checks if log flushing is disabled or not.
1600	*
1601	* @param pVCpu Pointer to the VMCPU.
1602	*/
1603	VMMR0DECL(bool) VMMR0IsLogFlushDisabled(PVMCPU pVCpu)
1604	{
1605	if (pVCpu->vmm.s.pR0LoggerR0)
1606	return pVCpu->vmm.s.pR0LoggerR0->fFlushingDisabled;
1607	return true;
1608	}
1609	#endif /* LOG_ENABLED */
1610
1611	/**
1612	* Jump back to ring-3 if we're the EMT and the longjmp is armed.
1613	*
1614	* @returns true if the breakpoint should be hit, false if it should be ignored.
1615	*/
1616	DECLEXPORT(bool) RTCALL RTAssertShouldPanic(void)
1617	{
1618	#if 0
1619	return true;
1620	#else
1621	PVM pVM = GVMMR0GetVMByEMT(NIL_RTNATIVETHREAD);
1622	if (pVM)
1623	{
1624	PVMCPU pVCpu = VMMGetCpu(pVM);
1625
1626	if (pVCpu)
1627	{
1628	#ifdef RT_ARCH_X86
1629	if ( pVCpu->vmm.s.CallRing3JmpBufR0.eip
1630	&& !pVCpu->vmm.s.CallRing3JmpBufR0.fInRing3Call)
1631	#else
1632	if ( pVCpu->vmm.s.CallRing3JmpBufR0.rip
1633	&& !pVCpu->vmm.s.CallRing3JmpBufR0.fInRing3Call)
1634	#endif
1635	{
1636	int rc = VMMRZCallRing3(pVM, pVCpu, VMMCALLRING3_VM_R0_ASSERTION, 0);
1637	return RT_FAILURE_NP(rc);
1638	}
1639	}
1640	}
1641	#ifdef RT_OS_LINUX
1642	return true;
1643	#else
1644	return false;
1645	#endif
1646	#endif
1647	}
1648
1649
1650	/**
1651	* Override this so we can push it up to ring-3.
1652	*
1653	* @param pszExpr Expression. Can be NULL.
1654	* @param uLine Location line number.
1655	* @param pszFile Location file name.
1656	* @param pszFunction Location function name.
1657	*/
1658	DECLEXPORT(void) RTCALL RTAssertMsg1Weak(const char pszExpr, unsigned uLine, const char pszFile, const char *pszFunction)
1659	{
1660	/*
1661	* To the log.
1662	*/
1663	LogAlways(("\n!!R0-Assertion Failed!!\n"
1664	"Expression: %s\n"
1665	"Location : %s(%d) %s\n",
1666	pszExpr, pszFile, uLine, pszFunction));
1667
1668	/*
1669	* To the global VMM buffer.
1670	*/
1671	PVM pVM = GVMMR0GetVMByEMT(NIL_RTNATIVETHREAD);
1672	if (pVM)
1673	RTStrPrintf(pVM->vmm.s.szRing0AssertMsg1, sizeof(pVM->vmm.s.szRing0AssertMsg1),
1674	"\n!!R0-Assertion Failed!!\n"
1675	"Expression: %s\n"
1676	"Location : %s(%d) %s\n",
1677	pszExpr, pszFile, uLine, pszFunction);
1678
1679	/*
1680	* Continue the normal way.
1681	*/
1682	RTAssertMsg1(pszExpr, uLine, pszFile, pszFunction);
1683	}
1684
1685
1686	/**
1687	* Callback for RTLogFormatV which writes to the ring-3 log port.
1688	* See PFNLOGOUTPUT() for details.
1689	*/
1690	static DECLCALLBACK(size_t) rtLogOutput(void pv, const char pachChars, size_t cbChars)
1691	{
1692	for (size_t i = 0; i < cbChars; i++)
1693	LogAlways(("%c", pachChars[i]));
1694
1695	NOREF(pv);
1696	return cbChars;
1697	}
1698
1699
1700	/**
1701	* Override this so we can push it up to ring-3.
1702	*
1703	* @param pszFormat The format string.
1704	* @param va Arguments.
1705	*/
1706	DECLEXPORT(void) RTCALL RTAssertMsg2WeakV(const char *pszFormat, va_list va)
1707	{
1708	va_list vaCopy;
1709
1710	/*
1711	* Push the message to the loggers.
1712	*/
1713	PRTLOGGER pLog = RTLogGetDefaultInstance(); /* Don't initialize it here... */
1714	if (pLog)
1715	{
1716	va_copy(vaCopy, va);
1717	RTLogFormatV(rtLogOutput, pLog, pszFormat, vaCopy);
1718	va_end(vaCopy);
1719	}
1720	pLog = RTLogRelDefaultInstance();
1721	if (pLog)
1722	{
1723	va_copy(vaCopy, va);
1724	RTLogFormatV(rtLogOutput, pLog, pszFormat, vaCopy);
1725	va_end(vaCopy);
1726	}
1727
1728	/*
1729	* Push it to the global VMM buffer.
1730	*/
1731	PVM pVM = GVMMR0GetVMByEMT(NIL_RTNATIVETHREAD);
1732	if (pVM)
1733	{
1734	va_copy(vaCopy, va);
1735	RTStrPrintfV(pVM->vmm.s.szRing0AssertMsg2, sizeof(pVM->vmm.s.szRing0AssertMsg2), pszFormat, vaCopy);
1736	va_end(vaCopy);
1737	}
1738
1739	/*
1740	* Continue the normal way.
1741	*/
1742	RTAssertMsg2V(pszFormat, va);
1743	}
1744

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source: vbox/trunk/src/VBox/VMM/VMMR0/VMMR0.cpp@ 47742

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