VMMR0.cpp@ 18768

Last change on this file since 18768 was 18666, checked in by vboxsync, 16 years ago
VMM: Clean out the VBOX_WITH_NEW_PHYS_CODE #ifdefs. (part 2)
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1	/* $Id: VMMR0.cpp 18666 2009-04-02 23:10:12Z 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	{
182	LogRel(("VMMR0InitVM: Revision mismatch, r3=%d r0=%d\n", uSvnRev, VMMGetSvnRev()));
183	SUPR0Printf("VMMR0InitVM: Revision mismatch, r3=%d r0=%d\n", uSvnRev, VMMGetSvnRev());
184	return VERR_VERSION_MISMATCH;
185	}
186	if ( !VALID_PTR(pVM)
187	\|\| pVM->pVMR0 != pVM)
188	return VERR_INVALID_PARAMETER;
189
190	/*
191	* Register the EMT R0 logger instance.
192	*/
193	PVMMR0LOGGER pR0Logger = pVM->vmm.s.pR0LoggerR0;
194	if (pR0Logger)
195	{
196	#if 0 /* testing of the logger. */
197	LogCom(("vmmR0InitVM: before %p\n", RTLogDefaultInstance()));
198	LogCom(("vmmR0InitVM: pfnFlush=%p actual=%p\n", pR0Logger->Logger.pfnFlush, vmmR0LoggerFlush));
199	LogCom(("vmmR0InitVM: pfnLogger=%p actual=%p\n", pR0Logger->Logger.pfnLogger, vmmR0LoggerWrapper));
200	LogCom(("vmmR0InitVM: offScratch=%d fFlags=%#x fDestFlags=%#x\n", pR0Logger->Logger.offScratch, pR0Logger->Logger.fFlags, pR0Logger->Logger.fDestFlags));
201
202	RTLogSetDefaultInstanceThread(&pR0Logger->Logger, (uintptr_t)pVM->pSession);
203	LogCom(("vmmR0InitVM: after %p reg\n", RTLogDefaultInstance()));
204	RTLogSetDefaultInstanceThread(NULL, 0);
205	LogCom(("vmmR0InitVM: after %p dereg\n", RTLogDefaultInstance()));
206
207	pR0Logger->Logger.pfnLogger("hello ring-0 logger\n");
208	LogCom(("vmmR0InitVM: returned succesfully from direct logger call.\n"));
209	pR0Logger->Logger.pfnFlush(&pR0Logger->Logger);
210	LogCom(("vmmR0InitVM: returned succesfully from direct flush call.\n"));
211
212	RTLogSetDefaultInstanceThread(&pR0Logger->Logger, (uintptr_t)pVM->pSession);
213	LogCom(("vmmR0InitVM: after %p reg2\n", RTLogDefaultInstance()));
214	pR0Logger->Logger.pfnLogger("hello ring-0 logger\n");
215	LogCom(("vmmR0InitVM: returned succesfully from direct logger call (2). offScratch=%d\n", pR0Logger->Logger.offScratch));
216	RTLogSetDefaultInstanceThread(NULL, 0);
217	LogCom(("vmmR0InitVM: after %p dereg2\n", RTLogDefaultInstance()));
218
219	RTLogLoggerEx(&pR0Logger->Logger, 0, ~0U, "hello ring-0 logger (RTLogLoggerEx)\n");
220	LogCom(("vmmR0InitVM: RTLogLoggerEx returned fine offScratch=%d\n", pR0Logger->Logger.offScratch));
221
222	RTLogSetDefaultInstanceThread(&pR0Logger->Logger, (uintptr_t)pVM->pSession);
223	RTLogPrintf("hello ring-0 logger (RTLogPrintf)\n");
224	LogCom(("vmmR0InitVM: RTLogPrintf returned fine offScratch=%d\n", pR0Logger->Logger.offScratch));
225	#endif
226	Log(("Switching to per-thread logging instance %p (key=%p)\n", &pR0Logger->Logger, pVM->pSession));
227	RTLogSetDefaultInstanceThread(&pR0Logger->Logger, (uintptr_t)pVM->pSession);
228	}
229
230	/*
231	* Initialize the per VM data for GVMM and GMM.
232	*/
233	int rc = GVMMR0InitVM(pVM);
234	// if (RT_SUCCESS(rc))
235	// rc = GMMR0InitPerVMData(pVM);
236	if (RT_SUCCESS(rc))
237	{
238	/*
239	* Init HWACCM, CPUM and PGM (Darwin only).
240	*/
241	rc = HWACCMR0InitVM(pVM);
242	if (RT_SUCCESS(rc))
243	{
244	rc = CPUMR0Init(pVM); /** @todo rename to CPUMR0InitVM */
245	if (RT_SUCCESS(rc))
246	{
247	#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
248	rc = PGMR0DynMapInitVM(pVM);
249	#endif
250	if (RT_SUCCESS(rc))
251	{
252	GVMMR0DoneInitVM(pVM);
253	return rc;
254	}
255
256	/* bail out */
257	}
258	HWACCMR0TermVM(pVM);
259	}
260	}
261	RTLogSetDefaultInstanceThread(NULL, 0);
262	return rc;
263	}
264
265
266	/**
267	* Terminates the R0 driver for a particular VM instance.
268	*
269	* This is normally called by ring-3 as part of the VM termination process, but
270	* may alternatively be called during the support driver session cleanup when
271	* the VM object is destroyed (see GVMM).
272	*
273	* @returns VBox status code.
274	*
275	* @param pVM The VM instance in question.
276	* @param pGVM Pointer to the global VM structure. Optional.
277	* @thread EMT or session clean up thread.
278	*/
279	VMMR0DECL(int) VMMR0TermVM(PVM pVM, PGVM pGVM)
280	{
281	/*
282	* Tell GVMM what we're up to and check that we only do this once.
283	*/
284	if (GVMMR0DoingTermVM(pVM, pGVM))
285	{
286	#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
287	PGMR0DynMapTermVM(pVM);
288	#endif
289	HWACCMR0TermVM(pVM);
290	}
291
292	/*
293	* Deregister the logger.
294	*/
295	RTLogSetDefaultInstanceThread(NULL, 0);
296	return VINF_SUCCESS;
297	}
298
299
300	/**
301	* Calls the ring-3 host code.
302	*
303	* @returns VBox status code of the ring-3 call.
304	* @param pVM The VM handle.
305	* @param enmOperation The operation.
306	* @param uArg The argument to the operation.
307	*/
308	VMMR0DECL(int) VMMR0CallHost(PVM pVM, VMMCALLHOST enmOperation, uint64_t uArg)
309	{
310	/** @todo profile this! */
311	pVM->vmm.s.enmCallHostOperation = enmOperation;
312	pVM->vmm.s.u64CallHostArg = uArg;
313	pVM->vmm.s.rcCallHost = VERR_INTERNAL_ERROR;
314	int rc = vmmR0CallHostLongJmp(&pVM->vmm.s.CallHostR0JmpBuf, VINF_VMM_CALL_HOST);
315	if (rc == VINF_SUCCESS)
316	rc = pVM->vmm.s.rcCallHost;
317	return rc;
318	}
319
320
321	#ifdef VBOX_WITH_STATISTICS
322	/**
323	* Record return code statistics
324	* @param pVM The VM handle.
325	* @param rc The status code.
326	*/
327	static void vmmR0RecordRC(PVM pVM, int rc)
328	{
329	/*
330	* Collect statistics.
331	*/
332	switch (rc)
333	{
334	case VINF_SUCCESS:
335	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetNormal);
336	break;
337	case VINF_EM_RAW_INTERRUPT:
338	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetInterrupt);
339	break;
340	case VINF_EM_RAW_INTERRUPT_HYPER:
341	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetInterruptHyper);
342	break;
343	case VINF_EM_RAW_GUEST_TRAP:
344	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetGuestTrap);
345	break;
346	case VINF_EM_RAW_RING_SWITCH:
347	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetRingSwitch);
348	break;
349	case VINF_EM_RAW_RING_SWITCH_INT:
350	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetRingSwitchInt);
351	break;
352	case VINF_EM_RAW_EXCEPTION_PRIVILEGED:
353	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetExceptionPrivilege);
354	break;
355	case VINF_EM_RAW_STALE_SELECTOR:
356	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetStaleSelector);
357	break;
358	case VINF_EM_RAW_IRET_TRAP:
359	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetIRETTrap);
360	break;
361	case VINF_IOM_HC_IOPORT_READ:
362	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetIORead);
363	break;
364	case VINF_IOM_HC_IOPORT_WRITE:
365	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetIOWrite);
366	break;
367	case VINF_IOM_HC_MMIO_READ:
368	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetMMIORead);
369	break;
370	case VINF_IOM_HC_MMIO_WRITE:
371	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetMMIOWrite);
372	break;
373	case VINF_IOM_HC_MMIO_READ_WRITE:
374	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetMMIOReadWrite);
375	break;
376	case VINF_PATM_HC_MMIO_PATCH_READ:
377	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetMMIOPatchRead);
378	break;
379	case VINF_PATM_HC_MMIO_PATCH_WRITE:
380	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetMMIOPatchWrite);
381	break;
382	case VINF_EM_RAW_EMULATE_INSTR:
383	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetEmulate);
384	break;
385	case VINF_EM_RAW_EMULATE_IO_BLOCK:
386	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetIOBlockEmulate);
387	break;
388	case VINF_PATCH_EMULATE_INSTR:
389	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetPatchEmulate);
390	break;
391	case VINF_EM_RAW_EMULATE_INSTR_LDT_FAULT:
392	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetLDTFault);
393	break;
394	case VINF_EM_RAW_EMULATE_INSTR_GDT_FAULT:
395	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetGDTFault);
396	break;
397	case VINF_EM_RAW_EMULATE_INSTR_IDT_FAULT:
398	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetIDTFault);
399	break;
400	case VINF_EM_RAW_EMULATE_INSTR_TSS_FAULT:
401	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetTSSFault);
402	break;
403	case VINF_EM_RAW_EMULATE_INSTR_PD_FAULT:
404	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetPDFault);
405	break;
406	case VINF_CSAM_PENDING_ACTION:
407	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetCSAMTask);
408	break;
409	case VINF_PGM_SYNC_CR3:
410	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetSyncCR3);
411	break;
412	case VINF_PATM_PATCH_INT3:
413	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetPatchInt3);
414	break;
415	case VINF_PATM_PATCH_TRAP_PF:
416	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetPatchPF);
417	break;
418	case VINF_PATM_PATCH_TRAP_GP:
419	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetPatchGP);
420	break;
421	case VINF_PATM_PENDING_IRQ_AFTER_IRET:
422	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetPatchIretIRQ);
423	break;
424	case VERR_REM_FLUSHED_PAGES_OVERFLOW:
425	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetPageOverflow);
426	break;
427	case VINF_EM_RESCHEDULE_REM:
428	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetRescheduleREM);
429	break;
430	case VINF_EM_RAW_TO_R3:
431	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetToR3);
432	break;
433	case VINF_EM_RAW_TIMER_PENDING:
434	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetTimerPending);
435	break;
436	case VINF_EM_RAW_INTERRUPT_PENDING:
437	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetInterruptPending);
438	break;
439	case VINF_VMM_CALL_HOST:
440	switch (pVM->vmm.s.enmCallHostOperation)
441	{
442	case VMMCALLHOST_PDM_LOCK:
443	STAM_COUNTER_INC(&pVM->vmm.s.StatRZCallPDMLock);
444	break;
445	case VMMCALLHOST_PDM_QUEUE_FLUSH:
446	STAM_COUNTER_INC(&pVM->vmm.s.StatRZCallPDMQueueFlush);
447	break;
448	case VMMCALLHOST_PGM_POOL_GROW:
449	STAM_COUNTER_INC(&pVM->vmm.s.StatRZCallPGMPoolGrow);
450	break;
451	case VMMCALLHOST_PGM_LOCK:
452	STAM_COUNTER_INC(&pVM->vmm.s.StatRZCallPGMLock);
453	break;
454	case VMMCALLHOST_PGM_MAP_CHUNK:
455	STAM_COUNTER_INC(&pVM->vmm.s.StatRZCallPGMMapChunk);
456	break;
457	case VMMCALLHOST_PGM_ALLOCATE_HANDY_PAGES:
458	STAM_COUNTER_INC(&pVM->vmm.s.StatRZCallPGMAllocHandy);
459	break;
460	case VMMCALLHOST_REM_REPLAY_HANDLER_NOTIFICATIONS:
461	STAM_COUNTER_INC(&pVM->vmm.s.StatRZCallRemReplay);
462	break;
463	case VMMCALLHOST_VMM_LOGGER_FLUSH:
464	STAM_COUNTER_INC(&pVM->vmm.s.StatRZCallLogFlush);
465	break;
466	case VMMCALLHOST_VM_SET_ERROR:
467	STAM_COUNTER_INC(&pVM->vmm.s.StatRZCallVMSetError);
468	break;
469	case VMMCALLHOST_VM_SET_RUNTIME_ERROR:
470	STAM_COUNTER_INC(&pVM->vmm.s.StatRZCallVMSetRuntimeError);
471	break;
472	case VMMCALLHOST_VM_R0_ASSERTION:
473	default:
474	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetCallHost);
475	break;
476	}
477	break;
478	case VINF_PATM_DUPLICATE_FUNCTION:
479	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetPATMDuplicateFn);
480	break;
481	case VINF_PGM_CHANGE_MODE:
482	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetPGMChangeMode);
483	break;
484	case VINF_EM_RAW_EMULATE_INSTR_HLT:
485	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetEmulHlt);
486	break;
487	case VINF_EM_PENDING_REQUEST:
488	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetPendingRequest);
489	break;
490	default:
491	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetMisc);
492	break;
493	}
494	}
495	#endif /* VBOX_WITH_STATISTICS */
496
497
498	/**
499	* Unused ring-0 entry point that used to be called from the interrupt gate.
500	*
501	* Will be removed one of the next times we do a major SUPDrv version bump.
502	*
503	* @returns VBox status code.
504	* @param pVM The VM to operate on.
505	* @param enmOperation Which operation to execute.
506	* @param pvArg Argument to the operation.
507	* @remarks Assume called with interrupts disabled.
508	*/
509	VMMR0DECL(int) VMMR0EntryInt(PVM pVM, VMMR0OPERATION enmOperation, void *pvArg)
510	{
511	/*
512	* We're returning VERR_NOT_SUPPORT here so we've got something else
513	* than -1 which the interrupt gate glue code might return.
514	*/
515	Log(("operation %#x is not supported\n", enmOperation));
516	return VERR_NOT_SUPPORTED;
517	}
518
519
520	/**
521	* The Ring 0 entry point, called by the fast-ioctl path.
522	*
523	* @param pVM The VM to operate on.
524	* The return code is stored in pVM->vmm.s.iLastGZRc.
525	* @param idCpu VMCPU id.
526	* @param enmOperation Which operation to execute.
527	* @remarks Assume called with interrupts _enabled_.
528	*/
529	VMMR0DECL(void) VMMR0EntryFast(PVM pVM, unsigned idCpu, VMMR0OPERATION enmOperation)
530	{
531	if (RT_UNLIKELY(idCpu >= pVM->cCPUs))
532	{
533	pVM->vmm.s.iLastGZRc = VERR_INVALID_PARAMETER;
534	return;
535	}
536
537	switch (enmOperation)
538	{
539	/*
540	* Switch to GC and run guest raw mode code.
541	* Disable interrupts before doing the world switch.
542	*/
543	case VMMR0_DO_RAW_RUN:
544	{
545	/* Safety precaution as hwaccm disables the switcher. */
546	if (RT_LIKELY(!pVM->vmm.s.fSwitcherDisabled))
547	{
548	RTCCUINTREG uFlags = ASMIntDisableFlags();
549	int rc;
550	bool fVTxDisabled;
551
552	#ifndef VBOX_WITH_2X_4GB_ADDR_SPACE_IN_R0
553	if (RT_UNLIKELY(!PGMGetHyperCR3(pVM)))
554	{
555	pVM->vmm.s.iLastGZRc = VERR_PGM_NO_CR3_SHADOW_ROOT;
556	return;
557	}
558	#endif
559
560	/* We might need to disable VT-x if the active switcher turns off paging. */
561	rc = HWACCMR0EnterSwitcher(pVM, &fVTxDisabled);
562	if (RT_FAILURE(rc))
563	{
564	pVM->vmm.s.iLastGZRc = rc;
565	return;
566	}
567
568	TMNotifyStartOfExecution(pVM);
569	rc = pVM->vmm.s.pfnHostToGuestR0(pVM);
570	pVM->vmm.s.iLastGZRc = rc;
571	TMNotifyEndOfExecution(pVM);
572
573	/* Re-enable VT-x if previously turned off. */
574	HWACCMR0LeaveSwitcher(pVM, fVTxDisabled);
575
576	if ( rc == VINF_EM_RAW_INTERRUPT
577	\|\| rc == VINF_EM_RAW_INTERRUPT_HYPER)
578	TRPMR0DispatchHostInterrupt(pVM);
579
580	ASMSetFlags(uFlags);
581
582	#ifdef VBOX_WITH_STATISTICS
583	STAM_COUNTER_INC(&pVM->vmm.s.StatRunRC);
584	vmmR0RecordRC(pVM, rc);
585	#endif
586	}
587	else
588	{
589	Assert(!pVM->vmm.s.fSwitcherDisabled);
590	pVM->vmm.s.iLastGZRc = VERR_NOT_SUPPORTED;
591	}
592	break;
593	}
594
595	/*
596	* Run guest code using the available hardware acceleration technology.
597	*
598	* Disable interrupts before we do anything interesting. On Windows we avoid
599	* this by having the support driver raise the IRQL before calling us, this way
600	* we hope to get away with page faults and later calling into the kernel.
601	*/
602	case VMMR0_DO_HWACC_RUN:
603	{
604	int rc;
605	PVMCPU pVCpu = &pVM->aCpus[idCpu];
606
607	STAM_COUNTER_INC(&pVM->vmm.s.StatRunRC);
608
609	#ifndef RT_OS_WINDOWS /** @todo check other hosts */
610	RTCCUINTREG uFlags = ASMIntDisableFlags();
611	#endif
612	if (!HWACCMR0SuspendPending())
613	{
614	rc = HWACCMR0Enter(pVM, pVCpu);
615	if (RT_SUCCESS(rc))
616	{
617	rc = vmmR0CallHostSetJmp(&pVM->vmm.s.CallHostR0JmpBuf, HWACCMR0RunGuestCode, pVM, pVCpu); /* this may resume code. */
618	int rc2 = HWACCMR0Leave(pVM, pVCpu);
619	AssertRC(rc2);
620	}
621	}
622	else
623	{
624	/* System is about to go into suspend mode; go back to ring 3. */
625	rc = VINF_EM_RAW_INTERRUPT;
626	}
627	pVM->vmm.s.iLastGZRc = rc;
628	#ifndef RT_OS_WINDOWS /** @todo check other hosts */
629	ASMSetFlags(uFlags);
630	#endif
631
632	#ifdef VBOX_WITH_STATISTICS
633	vmmR0RecordRC(pVM, rc);
634	#endif
635	/* No special action required for external interrupts, just return. */
636	break;
637	}
638
639	/*
640	* For profiling.
641	*/
642	case VMMR0_DO_NOP:
643	pVM->vmm.s.iLastGZRc = VINF_SUCCESS;
644	break;
645
646	/*
647	* Impossible.
648	*/
649	default:
650	AssertMsgFailed(("%#x\n", enmOperation));
651	pVM->vmm.s.iLastGZRc = VERR_NOT_SUPPORTED;
652	break;
653	}
654	}
655
656
657	/**
658	* Validates a session or VM session argument.
659	*
660	* @returns true / false accordingly.
661	* @param pVM The VM argument.
662	* @param pSession The session argument.
663	*/
664	DECLINLINE(bool) vmmR0IsValidSession(PVM pVM, PSUPDRVSESSION pClaimedSession, PSUPDRVSESSION pSession)
665	{
666	/* This must be set! */
667	if (!pSession)
668	return false;
669
670	/* Only one out of the two. */
671	if (pVM && pClaimedSession)
672	return false;
673	if (pVM)
674	pClaimedSession = pVM->pSession;
675	return pClaimedSession == pSession;
676	}
677
678
679	/**
680	* VMMR0EntryEx worker function, either called directly or when ever possible
681	* called thru a longjmp so we can exit safely on failure.
682	*
683	* @returns VBox status code.
684	* @param pVM The VM to operate on.
685	* @param enmOperation Which operation to execute.
686	* @param pReqHdr This points to a SUPVMMR0REQHDR packet. Optional.
687	* The support driver validates this if it's present.
688	* @param u64Arg Some simple constant argument.
689	* @param pSession The session of the caller.
690	* @remarks Assume called with interrupts _enabled_.
691	*/
692	static int vmmR0EntryExWorker(PVM pVM, VMMR0OPERATION enmOperation, PSUPVMMR0REQHDR pReqHdr, uint64_t u64Arg, PSUPDRVSESSION pSession)
693	{
694	/*
695	* Common VM pointer validation.
696	*/
697	if (pVM)
698	{
699	if (RT_UNLIKELY( !VALID_PTR(pVM)
700	\|\| ((uintptr_t)pVM & PAGE_OFFSET_MASK)))
701	{
702	SUPR0Printf("vmmR0EntryExWorker: Invalid pVM=%p! (op=%d)\n", pVM, enmOperation);
703	return VERR_INVALID_POINTER;
704	}
705	if (RT_UNLIKELY( pVM->enmVMState < VMSTATE_CREATING
706	\|\| pVM->enmVMState > VMSTATE_TERMINATED
707	\|\| pVM->pVMR0 != pVM))
708	{
709	SUPR0Printf("vmmR0EntryExWorker: Invalid pVM=%p:{enmVMState=%d, .pVMR0=%p}! (op=%d)\n",
710	pVM, pVM->enmVMState, pVM->pVMR0, enmOperation);
711	return VERR_INVALID_POINTER;
712	}
713	}
714
715	switch (enmOperation)
716	{
717	/*
718	* GVM requests
719	*/
720	case VMMR0_DO_GVMM_CREATE_VM:
721	if (pVM \|\| u64Arg)
722	return VERR_INVALID_PARAMETER;
723	return GVMMR0CreateVMReq((PGVMMCREATEVMREQ)pReqHdr);
724
725	case VMMR0_DO_GVMM_DESTROY_VM:
726	if (pReqHdr \|\| u64Arg)
727	return VERR_INVALID_PARAMETER;
728	return GVMMR0DestroyVM(pVM);
729
730	case VMMR0_DO_GVMM_SCHED_HALT:
731	if (pReqHdr)
732	return VERR_INVALID_PARAMETER;
733	return GVMMR0SchedHalt(pVM, u64Arg);
734
735	case VMMR0_DO_GVMM_SCHED_WAKE_UP:
736	if (pReqHdr \|\| u64Arg)
737	return VERR_INVALID_PARAMETER;
738	return GVMMR0SchedWakeUp(pVM);
739
740	case VMMR0_DO_GVMM_SCHED_POLL:
741	if (pReqHdr \|\| u64Arg > 1)
742	return VERR_INVALID_PARAMETER;
743	return GVMMR0SchedPoll(pVM, !!u64Arg);
744
745	case VMMR0_DO_GVMM_QUERY_STATISTICS:
746	if (u64Arg)
747	return VERR_INVALID_PARAMETER;
748	return GVMMR0QueryStatisticsReq(pVM, (PGVMMQUERYSTATISTICSSREQ)pReqHdr);
749
750	case VMMR0_DO_GVMM_RESET_STATISTICS:
751	if (u64Arg)
752	return VERR_INVALID_PARAMETER;
753	return GVMMR0ResetStatisticsReq(pVM, (PGVMMRESETSTATISTICSSREQ)pReqHdr);
754
755	/*
756	* Initialize the R0 part of a VM instance.
757	*/
758	case VMMR0_DO_VMMR0_INIT:
759	return vmmR0InitVM(pVM, (uint32_t)u64Arg);
760
761	/*
762	* Terminate the R0 part of a VM instance.
763	*/
764	case VMMR0_DO_VMMR0_TERM:
765	return VMMR0TermVM(pVM, NULL);
766
767	/*
768	* Attempt to enable hwacc mode and check the current setting.
769	*
770	*/
771	case VMMR0_DO_HWACC_ENABLE:
772	return HWACCMR0EnableAllCpus(pVM);
773
774	/*
775	* Setup the hardware accelerated raw-mode session.
776	*/
777	case VMMR0_DO_HWACC_SETUP_VM:
778	{
779	RTCCUINTREG fFlags = ASMIntDisableFlags();
780	int rc = HWACCMR0SetupVM(pVM);
781	ASMSetFlags(fFlags);
782	return rc;
783	}
784
785	/*
786	* Switch to GC to execute Hypervisor function.
787	*/
788	case VMMR0_DO_CALL_HYPERVISOR:
789	{
790	int rc;
791	bool fVTxDisabled;
792
793	/* Safety precaution as HWACCM can disable the switcher. */
794	Assert(!pVM->vmm.s.fSwitcherDisabled);
795	if (RT_UNLIKELY(pVM->vmm.s.fSwitcherDisabled))
796	return VERR_NOT_SUPPORTED;
797
798	#ifndef VBOX_WITH_2X_4GB_ADDR_SPACE_IN_R0
799	if (RT_UNLIKELY(!PGMGetHyperCR3(pVM)))
800	return VERR_PGM_NO_CR3_SHADOW_ROOT;
801	#endif
802
803	RTCCUINTREG fFlags = ASMIntDisableFlags();
804
805	/* We might need to disable VT-x if the active switcher turns off paging. */
806	rc = HWACCMR0EnterSwitcher(pVM, &fVTxDisabled);
807	if (RT_FAILURE(rc))
808	return rc;
809
810	rc = pVM->vmm.s.pfnHostToGuestR0(pVM);
811
812	/* Re-enable VT-x if previously turned off. */
813	HWACCMR0LeaveSwitcher(pVM, fVTxDisabled);
814
815	/** @todo dispatch interrupts? */
816	ASMSetFlags(fFlags);
817	return rc;
818	}
819
820	/*
821	* PGM wrappers.
822	*/
823	case VMMR0_DO_PGM_ALLOCATE_HANDY_PAGES:
824	return PGMR0PhysAllocateHandyPages(pVM);
825
826	/*
827	* GMM wrappers.
828	*/
829	case VMMR0_DO_GMM_INITIAL_RESERVATION:
830	if (u64Arg)
831	return VERR_INVALID_PARAMETER;
832	return GMMR0InitialReservationReq(pVM, (PGMMINITIALRESERVATIONREQ)pReqHdr);
833	case VMMR0_DO_GMM_UPDATE_RESERVATION:
834	if (u64Arg)
835	return VERR_INVALID_PARAMETER;
836	return GMMR0UpdateReservationReq(pVM, (PGMMUPDATERESERVATIONREQ)pReqHdr);
837
838	case VMMR0_DO_GMM_ALLOCATE_PAGES:
839	if (u64Arg)
840	return VERR_INVALID_PARAMETER;
841	return GMMR0AllocatePagesReq(pVM, (PGMMALLOCATEPAGESREQ)pReqHdr);
842	case VMMR0_DO_GMM_FREE_PAGES:
843	if (u64Arg)
844	return VERR_INVALID_PARAMETER;
845	return GMMR0FreePagesReq(pVM, (PGMMFREEPAGESREQ)pReqHdr);
846	case VMMR0_DO_GMM_BALLOONED_PAGES:
847	if (u64Arg)
848	return VERR_INVALID_PARAMETER;
849	return GMMR0BalloonedPagesReq(pVM, (PGMMBALLOONEDPAGESREQ)pReqHdr);
850	case VMMR0_DO_GMM_DEFLATED_BALLOON:
851	if (pReqHdr)
852	return VERR_INVALID_PARAMETER;
853	return GMMR0DeflatedBalloon(pVM, (uint32_t)u64Arg);
854
855	case VMMR0_DO_GMM_MAP_UNMAP_CHUNK:
856	if (u64Arg)
857	return VERR_INVALID_PARAMETER;
858	return GMMR0MapUnmapChunkReq(pVM, (PGMMMAPUNMAPCHUNKREQ)pReqHdr);
859	case VMMR0_DO_GMM_SEED_CHUNK:
860	if (pReqHdr)
861	return VERR_INVALID_PARAMETER;
862	return GMMR0SeedChunk(pVM, (RTR3PTR)u64Arg);
863
864	/*
865	* A quick GCFGM mock-up.
866	*/
867	/** @todo GCFGM with proper access control, ring-3 management interface and all that. */
868	case VMMR0_DO_GCFGM_SET_VALUE:
869	case VMMR0_DO_GCFGM_QUERY_VALUE:
870	{
871	if (pVM \|\| !pReqHdr \|\| u64Arg)
872	return VERR_INVALID_PARAMETER;
873	PGCFGMVALUEREQ pReq = (PGCFGMVALUEREQ)pReqHdr;
874	if (pReq->Hdr.cbReq != sizeof(*pReq))
875	return VERR_INVALID_PARAMETER;
876	int rc;
877	if (enmOperation == VMMR0_DO_GCFGM_SET_VALUE)
878	{
879	rc = GVMMR0SetConfig(pReq->pSession, &pReq->szName[0], pReq->u64Value);
880	//if (rc == VERR_CFGM_VALUE_NOT_FOUND)
881	// rc = GMMR0SetConfig(pReq->pSession, &pReq->szName[0], pReq->u64Value);
882	}
883	else
884	{
885	rc = GVMMR0QueryConfig(pReq->pSession, &pReq->szName[0], &pReq->u64Value);
886	//if (rc == VERR_CFGM_VALUE_NOT_FOUND)
887	// rc = GMMR0QueryConfig(pReq->pSession, &pReq->szName[0], &pReq->u64Value);
888	}
889	return rc;
890	}
891
892
893	/*
894	* Requests to the internal networking service.
895	*/
896	case VMMR0_DO_INTNET_OPEN:
897	{
898	PINTNETOPENREQ pReq = (PINTNETOPENREQ)pReqHdr;
899	if (u64Arg \|\| !pReq \|\| !vmmR0IsValidSession(pVM, pReq->pSession, pSession))
900	return VERR_INVALID_PARAMETER;
901	if (!g_pIntNet)
902	return VERR_NOT_SUPPORTED;
903	return INTNETR0OpenReq(g_pIntNet, pSession, pReq);
904	}
905
906	case VMMR0_DO_INTNET_IF_CLOSE:
907	if (u64Arg \|\| !pReqHdr \|\| !vmmR0IsValidSession(pVM, ((PINTNETIFCLOSEREQ)pReqHdr)->pSession, pSession))
908	return VERR_INVALID_PARAMETER;
909	if (!g_pIntNet)
910	return VERR_NOT_SUPPORTED;
911	return INTNETR0IfCloseReq(g_pIntNet, pSession, (PINTNETIFCLOSEREQ)pReqHdr);
912
913	case VMMR0_DO_INTNET_IF_GET_RING3_BUFFER:
914	if (u64Arg \|\| !pReqHdr \|\| !vmmR0IsValidSession(pVM, ((PINTNETIFGETRING3BUFFERREQ)pReqHdr)->pSession, pSession))
915	return VERR_INVALID_PARAMETER;
916	if (!g_pIntNet)
917	return VERR_NOT_SUPPORTED;
918	return INTNETR0IfGetRing3BufferReq(g_pIntNet, pSession, (PINTNETIFGETRING3BUFFERREQ)pReqHdr);
919
920	case VMMR0_DO_INTNET_IF_SET_PROMISCUOUS_MODE:
921	if (u64Arg \|\| !pReqHdr \|\| !vmmR0IsValidSession(pVM, ((PINTNETIFSETPROMISCUOUSMODEREQ)pReqHdr)->pSession, pSession))
922	return VERR_INVALID_PARAMETER;
923	if (!g_pIntNet)
924	return VERR_NOT_SUPPORTED;
925	return INTNETR0IfSetPromiscuousModeReq(g_pIntNet, pSession, (PINTNETIFSETPROMISCUOUSMODEREQ)pReqHdr);
926
927	case VMMR0_DO_INTNET_IF_SET_MAC_ADDRESS:
928	if (u64Arg \|\| !pReqHdr \|\| !vmmR0IsValidSession(pVM, ((PINTNETIFSETMACADDRESSREQ)pReqHdr)->pSession, pSession))
929	return VERR_INVALID_PARAMETER;
930	if (!g_pIntNet)
931	return VERR_NOT_SUPPORTED;
932	return INTNETR0IfSetMacAddressReq(g_pIntNet, pSession, (PINTNETIFSETMACADDRESSREQ)pReqHdr);
933
934	case VMMR0_DO_INTNET_IF_SET_ACTIVE:
935	if (u64Arg \|\| !pReqHdr \|\| !vmmR0IsValidSession(pVM, ((PINTNETIFSETACTIVEREQ)pReqHdr)->pSession, pSession))
936	return VERR_INVALID_PARAMETER;
937	if (!g_pIntNet)
938	return VERR_NOT_SUPPORTED;
939	return INTNETR0IfSetActiveReq(g_pIntNet, pSession, (PINTNETIFSETACTIVEREQ)pReqHdr);
940
941	case VMMR0_DO_INTNET_IF_SEND:
942	if (u64Arg \|\| !pReqHdr \|\| !vmmR0IsValidSession(pVM, ((PINTNETIFSENDREQ)pReqHdr)->pSession, pSession))
943	return VERR_INVALID_PARAMETER;
944	if (!g_pIntNet)
945	return VERR_NOT_SUPPORTED;
946	return INTNETR0IfSendReq(g_pIntNet, pSession, (PINTNETIFSENDREQ)pReqHdr);
947
948	case VMMR0_DO_INTNET_IF_WAIT:
949	if (u64Arg \|\| !pReqHdr \|\| !vmmR0IsValidSession(pVM, ((PINTNETIFWAITREQ)pReqHdr)->pSession, pSession))
950	return VERR_INVALID_PARAMETER;
951	if (!g_pIntNet)
952	return VERR_NOT_SUPPORTED;
953	return INTNETR0IfWaitReq(g_pIntNet, pSession, (PINTNETIFWAITREQ)pReqHdr);
954
955	/*
956	* For profiling.
957	*/
958	case VMMR0_DO_NOP:
959	case VMMR0_DO_SLOW_NOP:
960	return VINF_SUCCESS;
961
962	/*
963	* For testing Ring-0 APIs invoked in this environment.
964	*/
965	case VMMR0_DO_TESTS:
966	/** @todo make new test */
967	return VINF_SUCCESS;
968
969
970	#if HC_ARCH_BITS == 32 && defined(VBOX_WITH_64_BITS_GUESTS) && !defined(VBOX_WITH_HYBRID_32BIT_KERNEL)
971	case VMMR0_DO_TEST_SWITCHER3264:
972	return HWACCMR0TestSwitcher3264(pVM);
973	#endif
974	default:
975	/*
976	* We're returning VERR_NOT_SUPPORT here so we've got something else
977	* than -1 which the interrupt gate glue code might return.
978	*/
979	Log(("operation %#x is not supported\n", enmOperation));
980	return VERR_NOT_SUPPORTED;
981	}
982	}
983
984
985	/**
986	* Argument for vmmR0EntryExWrapper containing the argument s ofr VMMR0EntryEx.
987	*/
988	typedef struct VMMR0ENTRYEXARGS
989	{
990	PVM pVM;
991	VMMR0OPERATION enmOperation;
992	PSUPVMMR0REQHDR pReq;
993	uint64_t u64Arg;
994	PSUPDRVSESSION pSession;
995	} VMMR0ENTRYEXARGS;
996	/** Pointer to a vmmR0EntryExWrapper argument package. */
997	typedef VMMR0ENTRYEXARGS *PVMMR0ENTRYEXARGS;
998
999	/**
1000	* This is just a longjmp wrapper function for VMMR0EntryEx calls.
1001	*
1002	* @returns VBox status code.
1003	* @param pvArgs The argument package
1004	*/
1005	static int vmmR0EntryExWrapper(void *pvArgs)
1006	{
1007	return vmmR0EntryExWorker(((PVMMR0ENTRYEXARGS)pvArgs)->pVM,
1008	((PVMMR0ENTRYEXARGS)pvArgs)->enmOperation,
1009	((PVMMR0ENTRYEXARGS)pvArgs)->pReq,
1010	((PVMMR0ENTRYEXARGS)pvArgs)->u64Arg,
1011	((PVMMR0ENTRYEXARGS)pvArgs)->pSession);
1012	}
1013
1014
1015	/**
1016	* The Ring 0 entry point, called by the support library (SUP).
1017	*
1018	* @returns VBox status code.
1019	* @param pVM The VM to operate on.
1020	* @param enmOperation Which operation to execute.
1021	* @param pReq This points to a SUPVMMR0REQHDR packet. Optional.
1022	* @param u64Arg Some simple constant argument.
1023	* @param pSession The session of the caller.
1024	* @remarks Assume called with interrupts _enabled_.
1025	*/
1026	VMMR0DECL(int) VMMR0EntryEx(PVM pVM, VMMR0OPERATION enmOperation, PSUPVMMR0REQHDR pReq, uint64_t u64Arg, PSUPDRVSESSION pSession)
1027	{
1028	/*
1029	* Requests that should only happen on the EMT thread will be
1030	* wrapped in a setjmp so we can assert without causing trouble.
1031	*/
1032	if ( VALID_PTR(pVM)
1033	&& pVM->pVMR0)
1034	{
1035	switch (enmOperation)
1036	{
1037	/* These might/will be called before VMMR3Init. */
1038	case VMMR0_DO_GMM_INITIAL_RESERVATION:
1039	case VMMR0_DO_GMM_UPDATE_RESERVATION:
1040	case VMMR0_DO_GMM_ALLOCATE_PAGES:
1041	case VMMR0_DO_GMM_FREE_PAGES:
1042	case VMMR0_DO_GMM_BALLOONED_PAGES:
1043	case VMMR0_DO_GMM_DEFLATED_BALLOON:
1044	/* On the mac we might not have a valid jmp buf, so check these as well. */
1045	case VMMR0_DO_VMMR0_INIT:
1046	case VMMR0_DO_VMMR0_TERM:
1047	{
1048	if (!pVM->vmm.s.CallHostR0JmpBuf.pvSavedStack)
1049	break;
1050
1051	/** @todo validate this EMT claim... GVM knows. */
1052	VMMR0ENTRYEXARGS Args;
1053	Args.pVM = pVM;
1054	Args.enmOperation = enmOperation;
1055	Args.pReq = pReq;
1056	Args.u64Arg = u64Arg;
1057	Args.pSession = pSession;
1058	return vmmR0CallHostSetJmpEx(&pVM->vmm.s.CallHostR0JmpBuf, vmmR0EntryExWrapper, &Args);
1059	}
1060
1061	default:
1062	break;
1063	}
1064	}
1065	return vmmR0EntryExWorker(pVM, enmOperation, pReq, u64Arg, pSession);
1066	}
1067
1068
1069	/**
1070	* Internal R0 logger worker: Flush logger.
1071	*
1072	* @param pLogger The logger instance to flush.
1073	* @remark This function must be exported!
1074	*/
1075	VMMR0DECL(void) vmmR0LoggerFlush(PRTLOGGER pLogger)
1076	{
1077	/*
1078	* Convert the pLogger into a VM handle and 'call' back to Ring-3.
1079	* (This is a bit paranoid code.)
1080	*/
1081	PVMMR0LOGGER pR0Logger = (PVMMR0LOGGER)((uintptr_t)pLogger - RT_OFFSETOF(VMMR0LOGGER, Logger));
1082	if ( !VALID_PTR(pR0Logger)
1083	\|\| !VALID_PTR(pR0Logger + 1)
1084	\|\| pLogger->u32Magic != RTLOGGER_MAGIC)
1085	{
1086	#ifdef DEBUG
1087	SUPR0Printf("vmmR0LoggerFlush: pLogger=%p!\n", pLogger);
1088	#endif
1089	return;
1090	}
1091	if (pR0Logger->fFlushingDisabled)
1092	return; /* quietly */
1093
1094	PVM pVM = pR0Logger->pVM;
1095	if ( !VALID_PTR(pVM)
1096	\|\| pVM->pVMR0 != pVM)
1097	{
1098	#ifdef DEBUG
1099	SUPR0Printf("vmmR0LoggerFlush: pVM=%p! pVMR0=%p! pLogger=%p\n", pVM, pVM->pVMR0, pLogger);
1100	#endif
1101	return;
1102	}
1103
1104	/*
1105	* Check that the jump buffer is armed.
1106	*/
1107	#ifdef RT_ARCH_X86
1108	if ( !pVM->vmm.s.CallHostR0JmpBuf.eip
1109	\|\| pVM->vmm.s.CallHostR0JmpBuf.fInRing3Call)
1110	#else
1111	if ( !pVM->vmm.s.CallHostR0JmpBuf.rip
1112	\|\| pVM->vmm.s.CallHostR0JmpBuf.fInRing3Call)
1113	#endif
1114	{
1115	#ifdef DEBUG
1116	SUPR0Printf("vmmR0LoggerFlush: Jump buffer isn't armed!\n");
1117	#endif
1118	return;
1119	}
1120	VMMR0CallHost(pVM, VMMCALLHOST_VMM_LOGGER_FLUSH, 0);
1121	}
1122
1123
1124	/**
1125	* Disables flushing of the ring-0 debug log.
1126	*
1127	* @param pVCpu The shared virtual cpu structure.
1128	*/
1129	VMMR0DECL(void) VMMR0LogFlushDisable(PVMCPU pVCpu)
1130	{
1131	PVM pVM = pVCpu->pVMR0;
1132	if (pVM->vmm.s.pR0LoggerR0)
1133	pVM->vmm.s.pR0LoggerR0->fFlushingDisabled = true;
1134	}
1135
1136
1137	/**
1138	* Enables flushing of the ring-0 debug log.
1139	*
1140	* @param pVCpu The shared virtual cpu structure.
1141	*/
1142	VMMR0DECL(void) VMMR0LogFlushEnable(PVMCPU pVCpu)
1143	{
1144	PVM pVM = pVCpu->pVMR0;
1145	if (pVM->vmm.s.pR0LoggerR0)
1146	pVM->vmm.s.pR0LoggerR0->fFlushingDisabled = false;
1147	}
1148
1149
1150	/**
1151	* Jump back to ring-3 if we're the EMT and the longjmp is armed.
1152	*
1153	* @returns true if the breakpoint should be hit, false if it should be ignored.
1154	*/
1155	DECLEXPORT(bool) RTCALL RTAssertShouldPanic(void)
1156	{
1157	#if 0
1158	return true;
1159	#else
1160	PVM pVM = GVMMR0GetVMByEMT(NIL_RTNATIVETHREAD);
1161	if (pVM)
1162	{
1163	#ifdef RT_ARCH_X86
1164	if ( pVM->vmm.s.CallHostR0JmpBuf.eip
1165	&& !pVM->vmm.s.CallHostR0JmpBuf.fInRing3Call)
1166	#else
1167	if ( pVM->vmm.s.CallHostR0JmpBuf.rip
1168	&& !pVM->vmm.s.CallHostR0JmpBuf.fInRing3Call)
1169	#endif
1170	{
1171	int rc = VMMR0CallHost(pVM, VMMCALLHOST_VM_R0_ASSERTION, 0);
1172	return RT_FAILURE_NP(rc);
1173	}
1174	}
1175	#ifdef RT_OS_LINUX
1176	return true;
1177	#else
1178	return false;
1179	#endif
1180	#endif
1181	}
1182
1183
1184	/**
1185	* Override this so we can push it up to ring-3.
1186	*
1187	* @param pszExpr Expression. Can be NULL.
1188	* @param uLine Location line number.
1189	* @param pszFile Location file name.
1190	* @param pszFunction Location function name.
1191	*/
1192	DECLEXPORT(void) RTCALL AssertMsg1(const char pszExpr, unsigned uLine, const char pszFile, const char *pszFunction)
1193	{
1194	#if !defined(DEBUG_sandervl) && !defined(RT_OS_DARWIN)
1195	SUPR0Printf("\n!!R0-Assertion Failed!!\n"
1196	"Expression: %s\n"
1197	"Location : %s(%d) %s\n",
1198	pszExpr, pszFile, uLine, pszFunction);
1199	#endif
1200	LogAlways(("\n!!R0-Assertion Failed!!\n"
1201	"Expression: %s\n"
1202	"Location : %s(%d) %s\n",
1203	pszExpr, pszFile, uLine, pszFunction));
1204
1205	PVM pVM = GVMMR0GetVMByEMT(NIL_RTNATIVETHREAD);
1206	if (pVM)
1207	RTStrPrintf(pVM->vmm.s.szRing0AssertMsg1, sizeof(pVM->vmm.s.szRing0AssertMsg1),
1208	"\n!!R0-Assertion Failed!!\n"
1209	"Expression: %s\n"
1210	"Location : %s(%d) %s\n",
1211	pszExpr, pszFile, uLine, pszFunction);
1212	#ifdef RT_OS_DARWIN
1213	RTAssertMsg1(pszExpr, uLine, pszFile, pszFunction);
1214	#endif
1215	}
1216
1217
1218	/**
1219	* Callback for RTLogFormatV which writes to the ring-3 log port.
1220	* See PFNLOGOUTPUT() for details.
1221	*/
1222	static DECLCALLBACK(size_t) rtLogOutput(void pv, const char pachChars, size_t cbChars)
1223	{
1224	for (size_t i = 0; i < cbChars; i++)
1225	{
1226	#if !defined(DEBUG_sandervl) && !defined(RT_OS_DARWIN)
1227	SUPR0Printf("%c", pachChars[i]);
1228	#endif
1229	LogAlways(("%c", pachChars[i]));
1230	}
1231
1232	return cbChars;
1233	}
1234
1235
1236	DECLEXPORT(void) RTCALL AssertMsg2(const char *pszFormat, ...)
1237	{
1238	va_list va;
1239
1240	PRTLOGGER pLog = RTLogDefaultInstance(); /** @todo we want this for release as well! */
1241	if (pLog)
1242	{
1243	va_start(va, pszFormat);
1244	RTLogFormatV(rtLogOutput, pLog, pszFormat, va);
1245	va_end(va);
1246
1247	PVM pVM = GVMMR0GetVMByEMT(NIL_RTNATIVETHREAD);
1248	if (pVM)
1249	{
1250	va_start(va, pszFormat);
1251	RTStrPrintfV(pVM->vmm.s.szRing0AssertMsg2, sizeof(pVM->vmm.s.szRing0AssertMsg2), pszFormat, va);
1252	va_end(va);
1253	}
1254	}
1255
1256	#ifdef RT_OS_DARWIN
1257	va_start(va, pszFormat);
1258	RTAssertMsg2V(pszFormat, va);
1259	va_end(va);
1260	#endif
1261	}
1262

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source: vbox/trunk/src/VBox/VMM/VMMR0/VMMR0.cpp@ 18768

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