VMMR0.cpp@ 17364

Last change on this file since 17364 was 17305, checked in by vboxsync, 16 years ago
VMM: Register %R[pgmpage] and %R[pgmramrange] (logging builds only).
Property svn:eol-style set to `native` Property svn:keywords set to `Id`
File size: 41.2 KB

Line
1	/* $Id: VMMR0.cpp 17305 2009-03-03 18:19:29Z vboxsync $ */
2	/** @file
3	* VMM - Host Context Ring 0.
4	*/
5
6	/*
7	* Copyright (C) 2006-2007 Sun Microsystems, Inc.
8	*
9	* This file is part of VirtualBox Open Source Edition (OSE), as
10	* available from http://www.virtualbox.org. This file is free software;
11	* you can redistribute it and/or modify it under the terms of the GNU
12	* General Public License (GPL) as published by the Free Software
13	* Foundation, in version 2 as it comes in the "COPYING" file of the
14	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16	*
17	* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
18	* Clara, CA 95054 USA or visit http://www.sun.com if you need
19	* additional information or have any questions.
20	*/
21
22	/*******************************************************************************
23	* Header Files *
24	*******************************************************************************/
25	#define LOG_GROUP LOG_GROUP_VMM
26	#include <VBox/vmm.h>
27	#include <VBox/sup.h>
28	#include <VBox/trpm.h>
29	#include <VBox/cpum.h>
30	#include <VBox/pgm.h>
31	#include <VBox/stam.h>
32	#include <VBox/tm.h>
33	#include "VMMInternal.h"
34	#include <VBox/vm.h>
35	#include <VBox/gvmm.h>
36	#include <VBox/gmm.h>
37	#include <VBox/intnet.h>
38	#include <VBox/hwaccm.h>
39	#include <VBox/param.h>
40
41	#include <VBox/err.h>
42	#include <VBox/version.h>
43	#include <VBox/log.h>
44	#include <iprt/assert.h>
45	#include <iprt/stdarg.h>
46	#include <iprt/mp.h>
47	#include <iprt/string.h>
48
49	#if defined(_MSC_VER) && defined(RT_ARCH_AMD64) /** @todo check this with with VC7! */
50	# pragma intrinsic(_AddressOfReturnAddress)
51	#endif
52
53
54	/*******************************************************************************
55	* Internal Functions *
56	*******************************************************************************/
57	__BEGIN_DECLS
58	VMMR0DECL(int) ModuleInit(void);
59	VMMR0DECL(void) ModuleTerm(void);
60	__END_DECLS
61
62
63	/*******************************************************************************
64	* Global Variables *
65	*******************************************************************************/
66	/** Pointer to the internal networking service instance. */
67	PINTNET g_pIntNet = 0;
68
69
70	/**
71	* Initialize the module.
72	* This is called when we're first loaded.
73	*
74	* @returns 0 on success.
75	* @returns VBox status on failure.
76	*/
77	VMMR0DECL(int) ModuleInit(void)
78	{
79	LogFlow(("ModuleInit:\n"));
80
81	/*
82	* Initialize the GVMM, GMM, HWACCM, PGM (Darwin) and INTNET.
83	*/
84	int rc = GVMMR0Init();
85	if (RT_SUCCESS(rc))
86	{
87	rc = GMMR0Init();
88	if (RT_SUCCESS(rc))
89	{
90	rc = HWACCMR0Init();
91	if (RT_SUCCESS(rc))
92	{
93	rc = PGMRegisterStringFormatTypes();
94	if (RT_SUCCESS(rc))
95	{
96	#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
97	rc = PGMR0DynMapInit();
98	#endif
99	if (RT_SUCCESS(rc))
100	{
101	LogFlow(("ModuleInit: g_pIntNet=%p\n", g_pIntNet));
102	g_pIntNet = NULL;
103	LogFlow(("ModuleInit: g_pIntNet=%p should be NULL now...\n", g_pIntNet));
104	rc = INTNETR0Create(&g_pIntNet);
105	if (RT_SUCCESS(rc))
106	{
107	LogFlow(("ModuleInit: returns success. g_pIntNet=%p\n", g_pIntNet));
108	return VINF_SUCCESS;
109	}
110
111	/* bail out */
112	g_pIntNet = NULL;
113	LogFlow(("ModuleTerm: returns %Rrc\n", rc));
114	#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
115	PGMR0DynMapTerm();
116	#endif
117	}
118	PGMDeregisterStringFormatTypes();
119	}
120	HWACCMR0Term();
121	}
122	GMMR0Term();
123	}
124	GVMMR0Term();
125	}
126
127	LogFlow(("ModuleInit: failed %Rrc\n", rc));
128	return rc;
129	}
130
131
132	/**
133	* Terminate the module.
134	* This is called when we're finally unloaded.
135	*/
136	VMMR0DECL(void) ModuleTerm(void)
137	{
138	LogFlow(("ModuleTerm:\n"));
139
140	/*
141	* Destroy the internal networking instance.
142	*/
143	if (g_pIntNet)
144	{
145	INTNETR0Destroy(g_pIntNet);
146	g_pIntNet = NULL;
147	}
148
149	/*
150	* PGM (Darwin) and HWACCM global cleanup.
151	* Destroy the GMM and GVMM instances.
152	*/
153	#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
154	PGMR0DynMapTerm();
155	#endif
156	PGMDeregisterStringFormatTypes();
157	HWACCMR0Term();
158
159	GMMR0Term();
160	GVMMR0Term();
161
162	LogFlow(("ModuleTerm: returns\n"));
163	}
164
165
166	/**
167	* Initaties the R0 driver for a particular VM instance.
168	*
169	* @returns VBox status code.
170	*
171	* @param pVM The VM instance in question.
172	* @param uSvnRev The SVN revision of the ring-3 part.
173	* @thread EMT.
174	*/
175	static int vmmR0InitVM(PVM pVM, uint32_t uSvnRev)
176	{
177	/*
178	* Match the SVN revisions.
179	*/
180	if (uSvnRev != VMMGetSvnRev())
181	return VERR_VERSION_MISMATCH;
182	if ( !VALID_PTR(pVM)
183	\|\| pVM->pVMR0 != pVM)
184	return VERR_INVALID_PARAMETER;
185
186	/*
187	* Register the EMT R0 logger instance.
188	*/
189	PVMMR0LOGGER pR0Logger = pVM->vmm.s.pR0LoggerR0;
190	if (pR0Logger)
191	{
192	#if 0 /* testing of the logger. */
193	LogCom(("vmmR0InitVM: before %p\n", RTLogDefaultInstance()));
194	LogCom(("vmmR0InitVM: pfnFlush=%p actual=%p\n", pR0Logger->Logger.pfnFlush, vmmR0LoggerFlush));
195	LogCom(("vmmR0InitVM: pfnLogger=%p actual=%p\n", pR0Logger->Logger.pfnLogger, vmmR0LoggerWrapper));
196	LogCom(("vmmR0InitVM: offScratch=%d fFlags=%#x fDestFlags=%#x\n", pR0Logger->Logger.offScratch, pR0Logger->Logger.fFlags, pR0Logger->Logger.fDestFlags));
197
198	RTLogSetDefaultInstanceThread(&pR0Logger->Logger, (uintptr_t)pVM->pSession);
199	LogCom(("vmmR0InitVM: after %p reg\n", RTLogDefaultInstance()));
200	RTLogSetDefaultInstanceThread(NULL, 0);
201	LogCom(("vmmR0InitVM: after %p dereg\n", RTLogDefaultInstance()));
202
203	pR0Logger->Logger.pfnLogger("hello ring-0 logger\n");
204	LogCom(("vmmR0InitVM: returned succesfully from direct logger call.\n"));
205	pR0Logger->Logger.pfnFlush(&pR0Logger->Logger);
206	LogCom(("vmmR0InitVM: returned succesfully from direct flush call.\n"));
207
208	RTLogSetDefaultInstanceThread(&pR0Logger->Logger, (uintptr_t)pVM->pSession);
209	LogCom(("vmmR0InitVM: after %p reg2\n", RTLogDefaultInstance()));
210	pR0Logger->Logger.pfnLogger("hello ring-0 logger\n");
211	LogCom(("vmmR0InitVM: returned succesfully from direct logger call (2). offScratch=%d\n", pR0Logger->Logger.offScratch));
212	RTLogSetDefaultInstanceThread(NULL, 0);
213	LogCom(("vmmR0InitVM: after %p dereg2\n", RTLogDefaultInstance()));
214
215	RTLogLoggerEx(&pR0Logger->Logger, 0, ~0U, "hello ring-0 logger (RTLogLoggerEx)\n");
216	LogCom(("vmmR0InitVM: RTLogLoggerEx returned fine offScratch=%d\n", pR0Logger->Logger.offScratch));
217
218	RTLogSetDefaultInstanceThread(&pR0Logger->Logger, (uintptr_t)pVM->pSession);
219	RTLogPrintf("hello ring-0 logger (RTLogPrintf)\n");
220	LogCom(("vmmR0InitVM: RTLogPrintf returned fine offScratch=%d\n", pR0Logger->Logger.offScratch));
221	#endif
222	Log(("Switching to per-thread logging instance %p (key=%p)\n", &pR0Logger->Logger, pVM->pSession));
223	RTLogSetDefaultInstanceThread(&pR0Logger->Logger, (uintptr_t)pVM->pSession);
224	}
225
226	/*
227	* Initialize the per VM data for GVMM and GMM.
228	*/
229	int rc = GVMMR0InitVM(pVM);
230	// if (RT_SUCCESS(rc))
231	// rc = GMMR0InitPerVMData(pVM);
232	if (RT_SUCCESS(rc))
233	{
234	/*
235	* Init HWACCM, CPUM and PGM (Darwin only).
236	*/
237	rc = HWACCMR0InitVM(pVM);
238	if (RT_SUCCESS(rc))
239	{
240	rc = CPUMR0Init(pVM); /** @todo rename to CPUMR0InitVM */
241	if (RT_SUCCESS(rc))
242	{
243	#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
244	rc = PGMR0DynMapInitVM(pVM);
245	#endif
246	if (RT_SUCCESS(rc))
247	{
248	GVMMR0DoneInitVM(pVM);
249	return rc;
250	}
251
252	/* bail out */
253	}
254	HWACCMR0TermVM(pVM);
255	}
256	}
257	RTLogSetDefaultInstanceThread(NULL, 0);
258	return rc;
259	}
260
261
262	/**
263	* Terminates the R0 driver for a particular VM instance.
264	*
265	* This is normally called by ring-3 as part of the VM termination process, but
266	* may alternatively be called during the support driver session cleanup when
267	* the VM object is destroyed (see GVMM).
268	*
269	* @returns VBox status code.
270	*
271	* @param pVM The VM instance in question.
272	* @param pGVM Pointer to the global VM structure. Optional.
273	* @thread EMT or session clean up thread.
274	*/
275	VMMR0DECL(int) VMMR0TermVM(PVM pVM, PGVM pGVM)
276	{
277	/*
278	* Tell GVMM what we're up to and check that we only do this once.
279	*/
280	if (GVMMR0DoingTermVM(pVM, pGVM))
281	{
282	#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
283	PGMR0DynMapTermVM(pVM);
284	#endif
285	HWACCMR0TermVM(pVM);
286	}
287
288	/*
289	* Deregister the logger.
290	*/
291	RTLogSetDefaultInstanceThread(NULL, 0);
292	return VINF_SUCCESS;
293	}
294
295
296	/**
297	* Calls the ring-3 host code.
298	*
299	* @returns VBox status code of the ring-3 call.
300	* @param pVM The VM handle.
301	* @param enmOperation The operation.
302	* @param uArg The argument to the operation.
303	*/
304	VMMR0DECL(int) VMMR0CallHost(PVM pVM, VMMCALLHOST enmOperation, uint64_t uArg)
305	{
306	/** @todo profile this! */
307	pVM->vmm.s.enmCallHostOperation = enmOperation;
308	pVM->vmm.s.u64CallHostArg = uArg;
309	pVM->vmm.s.rcCallHost = VERR_INTERNAL_ERROR;
310	int rc = vmmR0CallHostLongJmp(&pVM->vmm.s.CallHostR0JmpBuf, VINF_VMM_CALL_HOST);
311	if (rc == VINF_SUCCESS)
312	rc = pVM->vmm.s.rcCallHost;
313	return rc;
314	}
315
316
317	#ifdef VBOX_WITH_STATISTICS
318	/**
319	* Record return code statistics
320	* @param pVM The VM handle.
321	* @param rc The status code.
322	*/
323	static void vmmR0RecordRC(PVM pVM, int rc)
324	{
325	/*
326	* Collect statistics.
327	*/
328	switch (rc)
329	{
330	case VINF_SUCCESS:
331	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetNormal);
332	break;
333	case VINF_EM_RAW_INTERRUPT:
334	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetInterrupt);
335	break;
336	case VINF_EM_RAW_INTERRUPT_HYPER:
337	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetInterruptHyper);
338	break;
339	case VINF_EM_RAW_GUEST_TRAP:
340	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetGuestTrap);
341	break;
342	case VINF_EM_RAW_RING_SWITCH:
343	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetRingSwitch);
344	break;
345	case VINF_EM_RAW_RING_SWITCH_INT:
346	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetRingSwitchInt);
347	break;
348	case VINF_EM_RAW_EXCEPTION_PRIVILEGED:
349	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetExceptionPrivilege);
350	break;
351	case VINF_EM_RAW_STALE_SELECTOR:
352	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetStaleSelector);
353	break;
354	case VINF_EM_RAW_IRET_TRAP:
355	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetIRETTrap);
356	break;
357	case VINF_IOM_HC_IOPORT_READ:
358	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetIORead);
359	break;
360	case VINF_IOM_HC_IOPORT_WRITE:
361	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetIOWrite);
362	break;
363	case VINF_IOM_HC_MMIO_READ:
364	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetMMIORead);
365	break;
366	case VINF_IOM_HC_MMIO_WRITE:
367	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetMMIOWrite);
368	break;
369	case VINF_IOM_HC_MMIO_READ_WRITE:
370	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetMMIOReadWrite);
371	break;
372	case VINF_PATM_HC_MMIO_PATCH_READ:
373	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetMMIOPatchRead);
374	break;
375	case VINF_PATM_HC_MMIO_PATCH_WRITE:
376	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetMMIOPatchWrite);
377	break;
378	case VINF_EM_RAW_EMULATE_INSTR:
379	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetEmulate);
380	break;
381	case VINF_EM_RAW_EMULATE_IO_BLOCK:
382	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetIOBlockEmulate);
383	break;
384	case VINF_PATCH_EMULATE_INSTR:
385	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetPatchEmulate);
386	break;
387	case VINF_EM_RAW_EMULATE_INSTR_LDT_FAULT:
388	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetLDTFault);
389	break;
390	case VINF_EM_RAW_EMULATE_INSTR_GDT_FAULT:
391	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetGDTFault);
392	break;
393	case VINF_EM_RAW_EMULATE_INSTR_IDT_FAULT:
394	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetIDTFault);
395	break;
396	case VINF_EM_RAW_EMULATE_INSTR_TSS_FAULT:
397	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetTSSFault);
398	break;
399	case VINF_EM_RAW_EMULATE_INSTR_PD_FAULT:
400	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetPDFault);
401	break;
402	case VINF_CSAM_PENDING_ACTION:
403	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetCSAMTask);
404	break;
405	case VINF_PGM_SYNC_CR3:
406	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetSyncCR3);
407	break;
408	case VINF_PATM_PATCH_INT3:
409	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetPatchInt3);
410	break;
411	case VINF_PATM_PATCH_TRAP_PF:
412	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetPatchPF);
413	break;
414	case VINF_PATM_PATCH_TRAP_GP:
415	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetPatchGP);
416	break;
417	case VINF_PATM_PENDING_IRQ_AFTER_IRET:
418	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetPatchIretIRQ);
419	break;
420	case VERR_REM_FLUSHED_PAGES_OVERFLOW:
421	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetPageOverflow);
422	break;
423	case VINF_EM_RESCHEDULE_REM:
424	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetRescheduleREM);
425	break;
426	case VINF_EM_RAW_TO_R3:
427	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetToR3);
428	break;
429	case VINF_EM_RAW_TIMER_PENDING:
430	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetTimerPending);
431	break;
432	case VINF_EM_RAW_INTERRUPT_PENDING:
433	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetInterruptPending);
434	break;
435	case VINF_VMM_CALL_HOST:
436	switch (pVM->vmm.s.enmCallHostOperation)
437	{
438	case VMMCALLHOST_PDM_LOCK:
439	STAM_COUNTER_INC(&pVM->vmm.s.StatRZCallPDMLock);
440	break;
441	case VMMCALLHOST_PDM_QUEUE_FLUSH:
442	STAM_COUNTER_INC(&pVM->vmm.s.StatRZCallPDMQueueFlush);
443	break;
444	case VMMCALLHOST_PGM_POOL_GROW:
445	STAM_COUNTER_INC(&pVM->vmm.s.StatRZCallPGMPoolGrow);
446	break;
447	case VMMCALLHOST_PGM_LOCK:
448	STAM_COUNTER_INC(&pVM->vmm.s.StatRZCallPGMLock);
449	break;
450	case VMMCALLHOST_PGM_MAP_CHUNK:
451	STAM_COUNTER_INC(&pVM->vmm.s.StatRZCallPGMMapChunk);
452	break;
453	case VMMCALLHOST_PGM_ALLOCATE_HANDY_PAGES:
454	STAM_COUNTER_INC(&pVM->vmm.s.StatRZCallPGMAllocHandy);
455	break;
456	#ifndef VBOX_WITH_NEW_PHYS_CODE
457	case VMMCALLHOST_PGM_RAM_GROW_RANGE:
458	STAM_COUNTER_INC(&pVM->vmm.s.StatRZCallPGMGrowRAM);
459	break;
460	#endif
461	case VMMCALLHOST_REM_REPLAY_HANDLER_NOTIFICATIONS:
462	STAM_COUNTER_INC(&pVM->vmm.s.StatRZCallRemReplay);
463	break;
464	case VMMCALLHOST_VMM_LOGGER_FLUSH:
465	STAM_COUNTER_INC(&pVM->vmm.s.StatRZCallLogFlush);
466	break;
467	case VMMCALLHOST_VM_SET_ERROR:
468	STAM_COUNTER_INC(&pVM->vmm.s.StatRZCallVMSetError);
469	break;
470	case VMMCALLHOST_VM_SET_RUNTIME_ERROR:
471	STAM_COUNTER_INC(&pVM->vmm.s.StatRZCallVMSetRuntimeError);
472	break;
473	case VMMCALLHOST_VM_R0_ASSERTION:
474	default:
475	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetCallHost);
476	break;
477	}
478	break;
479	case VINF_PATM_DUPLICATE_FUNCTION:
480	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetPATMDuplicateFn);
481	break;
482	case VINF_PGM_CHANGE_MODE:
483	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetPGMChangeMode);
484	break;
485	case VINF_EM_RAW_EMULATE_INSTR_HLT:
486	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetEmulHlt);
487	break;
488	case VINF_EM_PENDING_REQUEST:
489	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetPendingRequest);
490	break;
491	default:
492	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetMisc);
493	break;
494	}
495	}
496	#endif /* VBOX_WITH_STATISTICS */
497
498
499	/**
500	* Unused ring-0 entry point that used to be called from the interrupt gate.
501	*
502	* Will be removed one of the next times we do a major SUPDrv version bump.
503	*
504	* @returns VBox status code.
505	* @param pVM The VM to operate on.
506	* @param enmOperation Which operation to execute.
507	* @param pvArg Argument to the operation.
508	* @remarks Assume called with interrupts disabled.
509	*/
510	VMMR0DECL(int) VMMR0EntryInt(PVM pVM, VMMR0OPERATION enmOperation, void *pvArg)
511	{
512	/*
513	* We're returning VERR_NOT_SUPPORT here so we've got something else
514	* than -1 which the interrupt gate glue code might return.
515	*/
516	Log(("operation %#x is not supported\n", enmOperation));
517	return VERR_NOT_SUPPORTED;
518	}
519
520
521	/**
522	* The Ring 0 entry point, called by the fast-ioctl path.
523	*
524	* @param pVM The VM to operate on.
525	* The return code is stored in pVM->vmm.s.iLastGZRc.
526	* @param idCpu VMCPU id.
527	* @param enmOperation Which operation to execute.
528	* @remarks Assume called with interrupts _enabled_.
529	*/
530	VMMR0DECL(void) VMMR0EntryFast(PVM pVM, unsigned idCpu, VMMR0OPERATION enmOperation)
531	{
532	if (RT_UNLIKELY(idCpu >= pVM->cCPUs))
533	{
534	pVM->vmm.s.iLastGZRc = VERR_INVALID_PARAMETER;
535	return;
536	}
537
538	switch (enmOperation)
539	{
540	/*
541	* Switch to GC and run guest raw mode code.
542	* Disable interrupts before doing the world switch.
543	*/
544	case VMMR0_DO_RAW_RUN:
545	{
546	/* Safety precaution as hwaccm disables the switcher. */
547	if (RT_LIKELY(!pVM->vmm.s.fSwitcherDisabled))
548	{
549	RTCCUINTREG uFlags = ASMIntDisableFlags();
550	int rc;
551	bool fVTxDisabled;
552
553	if (RT_UNLIKELY(!PGMGetHyperCR3(pVM)))
554	{
555	pVM->vmm.s.iLastGZRc = VERR_PGM_NO_CR3_SHADOW_ROOT;
556	return;
557	}
558
559	/* We might need to disable VT-x if the active switcher turns off paging. */
560	rc = HWACCMR0EnterSwitcher(pVM, &fVTxDisabled);
561	if (RT_FAILURE(rc))
562	{
563	pVM->vmm.s.iLastGZRc = rc;
564	return;
565	}
566
567	TMNotifyStartOfExecution(pVM);
568	rc = pVM->vmm.s.pfnHostToGuestR0(pVM);
569	pVM->vmm.s.iLastGZRc = rc;
570	TMNotifyEndOfExecution(pVM);
571
572	/* Re-enable VT-x if previously turned off. */
573	HWACCMR0LeaveSwitcher(pVM, fVTxDisabled);
574
575	if ( rc == VINF_EM_RAW_INTERRUPT
576	\|\| rc == VINF_EM_RAW_INTERRUPT_HYPER)
577	TRPMR0DispatchHostInterrupt(pVM);
578
579	ASMSetFlags(uFlags);
580
581	#ifdef VBOX_WITH_STATISTICS
582	STAM_COUNTER_INC(&pVM->vmm.s.StatRunRC);
583	vmmR0RecordRC(pVM, rc);
584	#endif
585	}
586	else
587	{
588	Assert(!pVM->vmm.s.fSwitcherDisabled);
589	pVM->vmm.s.iLastGZRc = VERR_NOT_SUPPORTED;
590	}
591	break;
592	}
593
594	/*
595	* Run guest code using the available hardware acceleration technology.
596	*
597	* Disable interrupts before we do anything interesting. On Windows we avoid
598	* this by having the support driver raise the IRQL before calling us, this way
599	* we hope to get away with page faults and later calling into the kernel.
600	*/
601	case VMMR0_DO_HWACC_RUN:
602	{
603	int rc;
604	PVMCPU pVCpu = &pVM->aCpus[idCpu];
605
606	STAM_COUNTER_INC(&pVM->vmm.s.StatRunRC);
607
608	#ifndef RT_OS_WINDOWS /** @todo check other hosts */
609	RTCCUINTREG uFlags = ASMIntDisableFlags();
610	#endif
611	if (!HWACCMR0SuspendPending())
612	{
613	rc = HWACCMR0Enter(pVM, pVCpu);
614	if (RT_SUCCESS(rc))
615	{
616	rc = vmmR0CallHostSetJmp(&pVM->vmm.s.CallHostR0JmpBuf, HWACCMR0RunGuestCode, pVM, pVCpu); /* this may resume code. */
617	int rc2 = HWACCMR0Leave(pVM, pVCpu);
618	AssertRC(rc2);
619	}
620	}
621	else
622	{
623	/* System is about to go into suspend mode; go back to ring 3. */
624	rc = VINF_EM_RAW_INTERRUPT;
625	}
626	pVM->vmm.s.iLastGZRc = rc;
627	#ifndef RT_OS_WINDOWS /** @todo check other hosts */
628	ASMSetFlags(uFlags);
629	#endif
630
631	#ifdef VBOX_WITH_STATISTICS
632	vmmR0RecordRC(pVM, rc);
633	#endif
634	/* No special action required for external interrupts, just return. */
635	break;
636	}
637
638	/*
639	* For profiling.
640	*/
641	case VMMR0_DO_NOP:
642	pVM->vmm.s.iLastGZRc = VINF_SUCCESS;
643	break;
644
645	/*
646	* Impossible.
647	*/
648	default:
649	AssertMsgFailed(("%#x\n", enmOperation));
650	pVM->vmm.s.iLastGZRc = VERR_NOT_SUPPORTED;
651	break;
652	}
653	}
654
655
656	/**
657	* Validates a session or VM session argument.
658	*
659	* @returns true / false accordingly.
660	* @param pVM The VM argument.
661	* @param pSession The session argument.
662	*/
663	DECLINLINE(bool) vmmR0IsValidSession(PVM pVM, PSUPDRVSESSION pClaimedSession, PSUPDRVSESSION pSession)
664	{
665	/* This must be set! */
666	if (!pSession)
667	return false;
668
669	/* Only one out of the two. */
670	if (pVM && pClaimedSession)
671	return false;
672	if (pVM)
673	pClaimedSession = pVM->pSession;
674	return pClaimedSession == pSession;
675	}
676
677
678	/**
679	* VMMR0EntryEx worker function, either called directly or when ever possible
680	* called thru a longjmp so we can exit safely on failure.
681	*
682	* @returns VBox status code.
683	* @param pVM The VM to operate on.
684	* @param enmOperation Which operation to execute.
685	* @param pReqHdr This points to a SUPVMMR0REQHDR packet. Optional.
686	* The support driver validates this if it's present.
687	* @param u64Arg Some simple constant argument.
688	* @param pSession The session of the caller.
689	* @remarks Assume called with interrupts _enabled_.
690	*/
691	static int vmmR0EntryExWorker(PVM pVM, VMMR0OPERATION enmOperation, PSUPVMMR0REQHDR pReqHdr, uint64_t u64Arg, PSUPDRVSESSION pSession)
692	{
693	/*
694	* Common VM pointer validation.
695	*/
696	if (pVM)
697	{
698	if (RT_UNLIKELY( !VALID_PTR(pVM)
699	\|\| ((uintptr_t)pVM & PAGE_OFFSET_MASK)))
700	{
701	SUPR0Printf("vmmR0EntryExWorker: Invalid pVM=%p! (op=%d)\n", pVM, enmOperation);
702	return VERR_INVALID_POINTER;
703	}
704	if (RT_UNLIKELY( pVM->enmVMState < VMSTATE_CREATING
705	\|\| pVM->enmVMState > VMSTATE_TERMINATED
706	\|\| pVM->pVMR0 != pVM))
707	{
708	SUPR0Printf("vmmR0EntryExWorker: Invalid pVM=%p:{enmVMState=%d, .pVMR0=%p}! (op=%d)\n",
709	pVM, pVM->enmVMState, pVM->pVMR0, enmOperation);
710	return VERR_INVALID_POINTER;
711	}
712	}
713
714	switch (enmOperation)
715	{
716	/*
717	* GVM requests
718	*/
719	case VMMR0_DO_GVMM_CREATE_VM:
720	if (pVM \|\| u64Arg)
721	return VERR_INVALID_PARAMETER;
722	return GVMMR0CreateVMReq((PGVMMCREATEVMREQ)pReqHdr);
723
724	case VMMR0_DO_GVMM_DESTROY_VM:
725	if (pReqHdr \|\| u64Arg)
726	return VERR_INVALID_PARAMETER;
727	return GVMMR0DestroyVM(pVM);
728
729	case VMMR0_DO_GVMM_SCHED_HALT:
730	if (pReqHdr)
731	return VERR_INVALID_PARAMETER;
732	return GVMMR0SchedHalt(pVM, u64Arg);
733
734	case VMMR0_DO_GVMM_SCHED_WAKE_UP:
735	if (pReqHdr \|\| u64Arg)
736	return VERR_INVALID_PARAMETER;
737	return GVMMR0SchedWakeUp(pVM);
738
739	case VMMR0_DO_GVMM_SCHED_POLL:
740	if (pReqHdr \|\| u64Arg > 1)
741	return VERR_INVALID_PARAMETER;
742	return GVMMR0SchedPoll(pVM, !!u64Arg);
743
744	case VMMR0_DO_GVMM_QUERY_STATISTICS:
745	if (u64Arg)
746	return VERR_INVALID_PARAMETER;
747	return GVMMR0QueryStatisticsReq(pVM, (PGVMMQUERYSTATISTICSSREQ)pReqHdr);
748
749	case VMMR0_DO_GVMM_RESET_STATISTICS:
750	if (u64Arg)
751	return VERR_INVALID_PARAMETER;
752	return GVMMR0ResetStatisticsReq(pVM, (PGVMMRESETSTATISTICSSREQ)pReqHdr);
753
754	/*
755	* Initialize the R0 part of a VM instance.
756	*/
757	case VMMR0_DO_VMMR0_INIT:
758	return vmmR0InitVM(pVM, (uint32_t)u64Arg);
759
760	/*
761	* Terminate the R0 part of a VM instance.
762	*/
763	case VMMR0_DO_VMMR0_TERM:
764	return VMMR0TermVM(pVM, NULL);
765
766	/*
767	* Attempt to enable hwacc mode and check the current setting.
768	*
769	*/
770	case VMMR0_DO_HWACC_ENABLE:
771	return HWACCMR0EnableAllCpus(pVM);
772
773	/*
774	* Setup the hardware accelerated raw-mode session.
775	*/
776	case VMMR0_DO_HWACC_SETUP_VM:
777	{
778	RTCCUINTREG fFlags = ASMIntDisableFlags();
779	int rc = HWACCMR0SetupVM(pVM);
780	ASMSetFlags(fFlags);
781	return rc;
782	}
783
784	/*
785	* Switch to GC to execute Hypervisor function.
786	*/
787	case VMMR0_DO_CALL_HYPERVISOR:
788	{
789	int rc;
790	bool fVTxDisabled;
791
792	/* Safety precaution as HWACCM can disable the switcher. */
793	Assert(!pVM->vmm.s.fSwitcherDisabled);
794	if (RT_UNLIKELY(pVM->vmm.s.fSwitcherDisabled))
795	return VERR_NOT_SUPPORTED;
796
797	if (RT_UNLIKELY(!PGMGetHyperCR3(pVM)))
798	return VERR_PGM_NO_CR3_SHADOW_ROOT;
799
800	RTCCUINTREG fFlags = ASMIntDisableFlags();
801
802	/* We might need to disable VT-x if the active switcher turns off paging. */
803	rc = HWACCMR0EnterSwitcher(pVM, &fVTxDisabled);
804	if (RT_FAILURE(rc))
805	return rc;
806
807	rc = pVM->vmm.s.pfnHostToGuestR0(pVM);
808
809	/* Re-enable VT-x if previously turned off. */
810	HWACCMR0LeaveSwitcher(pVM, fVTxDisabled);
811
812	/** @todo dispatch interrupts? */
813	ASMSetFlags(fFlags);
814	return rc;
815	}
816
817	/*
818	* PGM wrappers.
819	*/
820	case VMMR0_DO_PGM_ALLOCATE_HANDY_PAGES:
821	return PGMR0PhysAllocateHandyPages(pVM);
822
823	/*
824	* GMM wrappers.
825	*/
826	case VMMR0_DO_GMM_INITIAL_RESERVATION:
827	if (u64Arg)
828	return VERR_INVALID_PARAMETER;
829	return GMMR0InitialReservationReq(pVM, (PGMMINITIALRESERVATIONREQ)pReqHdr);
830	case VMMR0_DO_GMM_UPDATE_RESERVATION:
831	if (u64Arg)
832	return VERR_INVALID_PARAMETER;
833	return GMMR0UpdateReservationReq(pVM, (PGMMUPDATERESERVATIONREQ)pReqHdr);
834
835	case VMMR0_DO_GMM_ALLOCATE_PAGES:
836	if (u64Arg)
837	return VERR_INVALID_PARAMETER;
838	return GMMR0AllocatePagesReq(pVM, (PGMMALLOCATEPAGESREQ)pReqHdr);
839	case VMMR0_DO_GMM_FREE_PAGES:
840	if (u64Arg)
841	return VERR_INVALID_PARAMETER;
842	return GMMR0FreePagesReq(pVM, (PGMMFREEPAGESREQ)pReqHdr);
843	case VMMR0_DO_GMM_BALLOONED_PAGES:
844	if (u64Arg)
845	return VERR_INVALID_PARAMETER;
846	return GMMR0BalloonedPagesReq(pVM, (PGMMBALLOONEDPAGESREQ)pReqHdr);
847	case VMMR0_DO_GMM_DEFLATED_BALLOON:
848	if (pReqHdr)
849	return VERR_INVALID_PARAMETER;
850	return GMMR0DeflatedBalloon(pVM, (uint32_t)u64Arg);
851
852	case VMMR0_DO_GMM_MAP_UNMAP_CHUNK:
853	if (u64Arg)
854	return VERR_INVALID_PARAMETER;
855	return GMMR0MapUnmapChunkReq(pVM, (PGMMMAPUNMAPCHUNKREQ)pReqHdr);
856	case VMMR0_DO_GMM_SEED_CHUNK:
857	if (pReqHdr)
858	return VERR_INVALID_PARAMETER;
859	return GMMR0SeedChunk(pVM, (RTR3PTR)u64Arg);
860
861	/*
862	* A quick GCFGM mock-up.
863	*/
864	/** @todo GCFGM with proper access control, ring-3 management interface and all that. */
865	case VMMR0_DO_GCFGM_SET_VALUE:
866	case VMMR0_DO_GCFGM_QUERY_VALUE:
867	{
868	if (pVM \|\| !pReqHdr \|\| u64Arg)
869	return VERR_INVALID_PARAMETER;
870	PGCFGMVALUEREQ pReq = (PGCFGMVALUEREQ)pReqHdr;
871	if (pReq->Hdr.cbReq != sizeof(*pReq))
872	return VERR_INVALID_PARAMETER;
873	int rc;
874	if (enmOperation == VMMR0_DO_GCFGM_SET_VALUE)
875	{
876	rc = GVMMR0SetConfig(pReq->pSession, &pReq->szName[0], pReq->u64Value);
877	//if (rc == VERR_CFGM_VALUE_NOT_FOUND)
878	// rc = GMMR0SetConfig(pReq->pSession, &pReq->szName[0], pReq->u64Value);
879	}
880	else
881	{
882	rc = GVMMR0QueryConfig(pReq->pSession, &pReq->szName[0], &pReq->u64Value);
883	//if (rc == VERR_CFGM_VALUE_NOT_FOUND)
884	// rc = GMMR0QueryConfig(pReq->pSession, &pReq->szName[0], &pReq->u64Value);
885	}
886	return rc;
887	}
888
889
890	/*
891	* Requests to the internal networking service.
892	*/
893	case VMMR0_DO_INTNET_OPEN:
894	{
895	PINTNETOPENREQ pReq = (PINTNETOPENREQ)pReqHdr;
896	if (u64Arg \|\| !pReq \|\| !vmmR0IsValidSession(pVM, pReq->pSession, pSession))
897	return VERR_INVALID_PARAMETER;
898	if (!g_pIntNet)
899	return VERR_NOT_SUPPORTED;
900	return INTNETR0OpenReq(g_pIntNet, pSession, pReq);
901	}
902
903	case VMMR0_DO_INTNET_IF_CLOSE:
904	if (u64Arg \|\| !pReqHdr \|\| !vmmR0IsValidSession(pVM, ((PINTNETIFCLOSEREQ)pReqHdr)->pSession, pSession))
905	return VERR_INVALID_PARAMETER;
906	if (!g_pIntNet)
907	return VERR_NOT_SUPPORTED;
908	return INTNETR0IfCloseReq(g_pIntNet, pSession, (PINTNETIFCLOSEREQ)pReqHdr);
909
910	case VMMR0_DO_INTNET_IF_GET_RING3_BUFFER:
911	if (u64Arg \|\| !pReqHdr \|\| !vmmR0IsValidSession(pVM, ((PINTNETIFGETRING3BUFFERREQ)pReqHdr)->pSession, pSession))
912	return VERR_INVALID_PARAMETER;
913	if (!g_pIntNet)
914	return VERR_NOT_SUPPORTED;
915	return INTNETR0IfGetRing3BufferReq(g_pIntNet, pSession, (PINTNETIFGETRING3BUFFERREQ)pReqHdr);
916
917	case VMMR0_DO_INTNET_IF_SET_PROMISCUOUS_MODE:
918	if (u64Arg \|\| !pReqHdr \|\| !vmmR0IsValidSession(pVM, ((PINTNETIFSETPROMISCUOUSMODEREQ)pReqHdr)->pSession, pSession))
919	return VERR_INVALID_PARAMETER;
920	if (!g_pIntNet)
921	return VERR_NOT_SUPPORTED;
922	return INTNETR0IfSetPromiscuousModeReq(g_pIntNet, pSession, (PINTNETIFSETPROMISCUOUSMODEREQ)pReqHdr);
923
924	case VMMR0_DO_INTNET_IF_SET_MAC_ADDRESS:
925	if (u64Arg \|\| !pReqHdr \|\| !vmmR0IsValidSession(pVM, ((PINTNETIFSETMACADDRESSREQ)pReqHdr)->pSession, pSession))
926	return VERR_INVALID_PARAMETER;
927	if (!g_pIntNet)
928	return VERR_NOT_SUPPORTED;
929	return INTNETR0IfSetMacAddressReq(g_pIntNet, pSession, (PINTNETIFSETMACADDRESSREQ)pReqHdr);
930
931	case VMMR0_DO_INTNET_IF_SET_ACTIVE:
932	if (u64Arg \|\| !pReqHdr \|\| !vmmR0IsValidSession(pVM, ((PINTNETIFSETACTIVEREQ)pReqHdr)->pSession, pSession))
933	return VERR_INVALID_PARAMETER;
934	if (!g_pIntNet)
935	return VERR_NOT_SUPPORTED;
936	return INTNETR0IfSetActiveReq(g_pIntNet, pSession, (PINTNETIFSETACTIVEREQ)pReqHdr);
937
938	case VMMR0_DO_INTNET_IF_SEND:
939	if (u64Arg \|\| !pReqHdr \|\| !vmmR0IsValidSession(pVM, ((PINTNETIFSENDREQ)pReqHdr)->pSession, pSession))
940	return VERR_INVALID_PARAMETER;
941	if (!g_pIntNet)
942	return VERR_NOT_SUPPORTED;
943	return INTNETR0IfSendReq(g_pIntNet, pSession, (PINTNETIFSENDREQ)pReqHdr);
944
945	case VMMR0_DO_INTNET_IF_WAIT:
946	if (u64Arg \|\| !pReqHdr \|\| !vmmR0IsValidSession(pVM, ((PINTNETIFWAITREQ)pReqHdr)->pSession, pSession))
947	return VERR_INVALID_PARAMETER;
948	if (!g_pIntNet)
949	return VERR_NOT_SUPPORTED;
950	return INTNETR0IfWaitReq(g_pIntNet, pSession, (PINTNETIFWAITREQ)pReqHdr);
951
952	/*
953	* For profiling.
954	*/
955	case VMMR0_DO_NOP:
956	case VMMR0_DO_SLOW_NOP:
957	return VINF_SUCCESS;
958
959	/*
960	* For testing Ring-0 APIs invoked in this environment.
961	*/
962	case VMMR0_DO_TESTS:
963	/** @todo make new test */
964	return VINF_SUCCESS;
965
966
967	#if HC_ARCH_BITS == 32 && defined(VBOX_WITH_64_BITS_GUESTS) && !defined(VBOX_WITH_HYBRID_32BIT_KERNEL)
968	case VMMR0_DO_TEST_SWITCHER3264:
969	return HWACCMR0TestSwitcher3264(pVM);
970	#endif
971	default:
972	/*
973	* We're returning VERR_NOT_SUPPORT here so we've got something else
974	* than -1 which the interrupt gate glue code might return.
975	*/
976	Log(("operation %#x is not supported\n", enmOperation));
977	return VERR_NOT_SUPPORTED;
978	}
979	}
980
981
982	/**
983	* Argument for vmmR0EntryExWrapper containing the argument s ofr VMMR0EntryEx.
984	*/
985	typedef struct VMMR0ENTRYEXARGS
986	{
987	PVM pVM;
988	VMMR0OPERATION enmOperation;
989	PSUPVMMR0REQHDR pReq;
990	uint64_t u64Arg;
991	PSUPDRVSESSION pSession;
992	} VMMR0ENTRYEXARGS;
993	/** Pointer to a vmmR0EntryExWrapper argument package. */
994	typedef VMMR0ENTRYEXARGS *PVMMR0ENTRYEXARGS;
995
996	/**
997	* This is just a longjmp wrapper function for VMMR0EntryEx calls.
998	*
999	* @returns VBox status code.
1000	* @param pvArgs The argument package
1001	*/
1002	static int vmmR0EntryExWrapper(void *pvArgs)
1003	{
1004	return vmmR0EntryExWorker(((PVMMR0ENTRYEXARGS)pvArgs)->pVM,
1005	((PVMMR0ENTRYEXARGS)pvArgs)->enmOperation,
1006	((PVMMR0ENTRYEXARGS)pvArgs)->pReq,
1007	((PVMMR0ENTRYEXARGS)pvArgs)->u64Arg,
1008	((PVMMR0ENTRYEXARGS)pvArgs)->pSession);
1009	}
1010
1011
1012	/**
1013	* The Ring 0 entry point, called by the support library (SUP).
1014	*
1015	* @returns VBox status code.
1016	* @param pVM The VM to operate on.
1017	* @param enmOperation Which operation to execute.
1018	* @param pReq This points to a SUPVMMR0REQHDR packet. Optional.
1019	* @param u64Arg Some simple constant argument.
1020	* @param pSession The session of the caller.
1021	* @remarks Assume called with interrupts _enabled_.
1022	*/
1023	VMMR0DECL(int) VMMR0EntryEx(PVM pVM, VMMR0OPERATION enmOperation, PSUPVMMR0REQHDR pReq, uint64_t u64Arg, PSUPDRVSESSION pSession)
1024	{
1025	/*
1026	* Requests that should only happen on the EMT thread will be
1027	* wrapped in a setjmp so we can assert without causing trouble.
1028	*/
1029	if ( VALID_PTR(pVM)
1030	&& pVM->pVMR0)
1031	{
1032	switch (enmOperation)
1033	{
1034	/* These might/will be called before VMMR3Init. */
1035	case VMMR0_DO_GMM_INITIAL_RESERVATION:
1036	case VMMR0_DO_GMM_UPDATE_RESERVATION:
1037	case VMMR0_DO_GMM_ALLOCATE_PAGES:
1038	case VMMR0_DO_GMM_FREE_PAGES:
1039	case VMMR0_DO_GMM_BALLOONED_PAGES:
1040	case VMMR0_DO_GMM_DEFLATED_BALLOON:
1041	case VMMR0_DO_GMM_MAP_UNMAP_CHUNK:
1042	case VMMR0_DO_GMM_SEED_CHUNK:
1043	/* On the mac we might not have a valid jmp buf, so check these as well. */
1044	case VMMR0_DO_VMMR0_INIT:
1045	case VMMR0_DO_VMMR0_TERM:
1046	{
1047	if (!pVM->vmm.s.CallHostR0JmpBuf.pvSavedStack)
1048	break;
1049
1050	/** @todo validate this EMT claim... GVM knows. */
1051	VMMR0ENTRYEXARGS Args;
1052	Args.pVM = pVM;
1053	Args.enmOperation = enmOperation;
1054	Args.pReq = pReq;
1055	Args.u64Arg = u64Arg;
1056	Args.pSession = pSession;
1057	return vmmR0CallHostSetJmpEx(&pVM->vmm.s.CallHostR0JmpBuf, vmmR0EntryExWrapper, &Args);
1058	}
1059
1060	default:
1061	break;
1062	}
1063	}
1064	return vmmR0EntryExWorker(pVM, enmOperation, pReq, u64Arg, pSession);
1065	}
1066
1067
1068	/**
1069	* Internal R0 logger worker: Flush logger.
1070	*
1071	* @param pLogger The logger instance to flush.
1072	* @remark This function must be exported!
1073	*/
1074	VMMR0DECL(void) vmmR0LoggerFlush(PRTLOGGER pLogger)
1075	{
1076	/*
1077	* Convert the pLogger into a VM handle and 'call' back to Ring-3.
1078	* (This is a bit paranoid code.)
1079	*/
1080	PVMMR0LOGGER pR0Logger = (PVMMR0LOGGER)((uintptr_t)pLogger - RT_OFFSETOF(VMMR0LOGGER, Logger));
1081	if ( !VALID_PTR(pR0Logger)
1082	\|\| !VALID_PTR(pR0Logger + 1)
1083	\|\| pLogger->u32Magic != RTLOGGER_MAGIC)
1084	{
1085	#ifdef DEBUG
1086	SUPR0Printf("vmmR0LoggerFlush: pLogger=%p!\n", pLogger);
1087	#endif
1088	return;
1089	}
1090	if (pR0Logger->fFlushingDisabled)
1091	return; /* quietly */
1092
1093	PVM pVM = pR0Logger->pVM;
1094	if ( !VALID_PTR(pVM)
1095	\|\| pVM->pVMR0 != pVM)
1096	{
1097	#ifdef DEBUG
1098	SUPR0Printf("vmmR0LoggerFlush: pVM=%p! pVMR0=%p! pLogger=%p\n", pVM, pVM->pVMR0, pLogger);
1099	#endif
1100	return;
1101	}
1102
1103	/*
1104	* Check that the jump buffer is armed.
1105	*/
1106	#ifdef RT_ARCH_X86
1107	if (!pVM->vmm.s.CallHostR0JmpBuf.eip)
1108	#else
1109	if (!pVM->vmm.s.CallHostR0JmpBuf.rip)
1110	#endif
1111	{
1112	#ifdef DEBUG
1113	SUPR0Printf("vmmR0LoggerFlush: Jump buffer isn't armed!\n");
1114	#endif
1115	return;
1116	}
1117	VMMR0CallHost(pVM, VMMCALLHOST_VMM_LOGGER_FLUSH, 0);
1118	}
1119
1120
1121	/**
1122	* Disables flushing of the ring-0 debug log.
1123	*
1124	* @param pVCpu The shared virtual cpu structure.
1125	*/
1126	VMMR0DECL(void) VMMR0LogFlushDisable(PVMCPU pVCpu)
1127	{
1128	PVM pVM = pVCpu->pVMR0;
1129	if (pVM->vmm.s.pR0LoggerR0)
1130	pVM->vmm.s.pR0LoggerR0->fFlushingDisabled = true;
1131	}
1132
1133
1134	/**
1135	* Enables flushing of the ring-0 debug log.
1136	*
1137	* @param pVCpu The shared virtual cpu structure.
1138	*/
1139	VMMR0DECL(void) VMMR0LogFlushEnable(PVMCPU pVCpu)
1140	{
1141	PVM pVM = pVCpu->pVMR0;
1142	if (pVM->vmm.s.pR0LoggerR0)
1143	pVM->vmm.s.pR0LoggerR0->fFlushingDisabled = false;
1144	}
1145
1146
1147	/**
1148	* Jump back to ring-3 if we're the EMT and the longjmp is armed.
1149	*
1150	* @returns true if the breakpoint should be hit, false if it should be ignored.
1151	*/
1152	DECLEXPORT(bool) RTCALL RTAssertShouldPanic(void)
1153	{
1154	#if 0
1155	return true;
1156	#else
1157	PVM pVM = GVMMR0GetVMByEMT(NIL_RTNATIVETHREAD);
1158	if (pVM)
1159	{
1160	#ifdef RT_ARCH_X86
1161	if (pVM->vmm.s.CallHostR0JmpBuf.eip)
1162	#else
1163	if (pVM->vmm.s.CallHostR0JmpBuf.rip)
1164	#endif
1165	{
1166	int rc = VMMR0CallHost(pVM, VMMCALLHOST_VM_R0_ASSERTION, 0);
1167	return RT_FAILURE_NP(rc);
1168	}
1169	}
1170	#ifdef RT_OS_LINUX
1171	return true;
1172	#else
1173	return false;
1174	#endif
1175	#endif
1176	}
1177
1178
1179	/**
1180	* Override this so we can push it up to ring-3.
1181	*
1182	* @param pszExpr Expression. Can be NULL.
1183	* @param uLine Location line number.
1184	* @param pszFile Location file name.
1185	* @param pszFunction Location function name.
1186	*/
1187	DECLEXPORT(void) RTCALL AssertMsg1(const char pszExpr, unsigned uLine, const char pszFile, const char *pszFunction)
1188	{
1189	#if !defined(DEBUG_sandervl) && !defined(RT_OS_DARWIN)
1190	SUPR0Printf("\n!!R0-Assertion Failed!!\n"
1191	"Expression: %s\n"
1192	"Location : %s(%d) %s\n",
1193	pszExpr, pszFile, uLine, pszFunction);
1194	#endif
1195	LogAlways(("\n!!R0-Assertion Failed!!\n"
1196	"Expression: %s\n"
1197	"Location : %s(%d) %s\n",
1198	pszExpr, pszFile, uLine, pszFunction));
1199
1200	PVM pVM = GVMMR0GetVMByEMT(NIL_RTNATIVETHREAD);
1201	if (pVM)
1202	RTStrPrintf(pVM->vmm.s.szRing0AssertMsg1, sizeof(pVM->vmm.s.szRing0AssertMsg1),
1203	"\n!!R0-Assertion Failed!!\n"
1204	"Expression: %s\n"
1205	"Location : %s(%d) %s\n",
1206	pszExpr, pszFile, uLine, pszFunction);
1207	#ifdef RT_OS_DARWIN
1208	RTAssertMsg1(pszExpr, uLine, pszFile, pszFunction);
1209	#endif
1210	}
1211
1212
1213	/**
1214	* Callback for RTLogFormatV which writes to the ring-3 log port.
1215	* See PFNLOGOUTPUT() for details.
1216	*/
1217	static DECLCALLBACK(size_t) rtLogOutput(void pv, const char pachChars, size_t cbChars)
1218	{
1219	for (size_t i = 0; i < cbChars; i++)
1220	{
1221	#if !defined(DEBUG_sandervl) && !defined(RT_OS_DARWIN)
1222	SUPR0Printf("%c", pachChars[i]);
1223	#endif
1224	LogAlways(("%c", pachChars[i]));
1225	}
1226
1227	return cbChars;
1228	}
1229
1230
1231	DECLEXPORT(void) RTCALL AssertMsg2(const char *pszFormat, ...)
1232	{
1233	va_list va;
1234
1235	PRTLOGGER pLog = RTLogDefaultInstance(); /** @todo we want this for release as well! */
1236	if (pLog)
1237	{
1238	va_start(va, pszFormat);
1239	RTLogFormatV(rtLogOutput, pLog, pszFormat, va);
1240	va_end(va);
1241
1242	PVM pVM = GVMMR0GetVMByEMT(NIL_RTNATIVETHREAD);
1243	if (pVM)
1244	{
1245	va_start(va, pszFormat);
1246	RTStrPrintfV(pVM->vmm.s.szRing0AssertMsg2, sizeof(pVM->vmm.s.szRing0AssertMsg2), pszFormat, va);
1247	va_end(va);
1248	}
1249	}
1250
1251	#ifdef RT_OS_DARWIN
1252	va_start(va, pszFormat);
1253	RTAssertMsg2V(pszFormat, va);
1254	va_end(va);
1255	#endif
1256	}
1257

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source: vbox/trunk/src/VBox/VMM/VMMR0/VMMR0.cpp@ 17364

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