VMMR0.cpp@ 13049

Last change on this file since 13049 was 12836, checked in by vboxsync, 16 years ago
VMMR0: Fixed va_list reuse bug in AssertMsg2.
Property svn:eol-style set to `native` Property svn:keywords set to `Id`
File size: 39.8 KB

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1	/* $Id: VMMR0.cpp 12836 2008-09-30 15:33:20Z 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	/*******************************************************************************
24	* Header Files *
25	*******************************************************************************/
26	#define LOG_GROUP LOG_GROUP_VMM
27	#include <VBox/vmm.h>
28	#include <VBox/sup.h>
29	#include <VBox/trpm.h>
30	#include <VBox/cpum.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	static int VMMR0Init(PVM pVM, uint32_t uSvnRev);
58	static int VMMR0Term(PVM pVM);
59	__BEGIN_DECLS
60	VMMR0DECL(int) ModuleInit(void);
61	VMMR0DECL(void) ModuleTerm(void);
62	__END_DECLS
63
64
65	/*******************************************************************************
66	* Global Variables *
67	*******************************************************************************/
68	#ifdef VBOX_WITH_INTERNAL_NETWORKING
69	/** Pointer to the internal networking service instance. */
70	PINTNET g_pIntNet = 0;
71	#endif
72
73
74	/**
75	* Initialize the module.
76	* This is called when we're first loaded.
77	*
78	* @returns 0 on success.
79	* @returns VBox status on failure.
80	*/
81	VMMR0DECL(int) ModuleInit(void)
82	{
83	LogFlow(("ModuleInit:\n"));
84
85	/*
86	* Initialize the GVMM, GMM.& HWACCM
87	*/
88	int rc = GVMMR0Init();
89	if (RT_SUCCESS(rc))
90	{
91	rc = GMMR0Init();
92	if (RT_SUCCESS(rc))
93	{
94	rc = HWACCMR0Init();
95	if (RT_SUCCESS(rc))
96	{
97	#ifdef VBOX_WITH_INTERNAL_NETWORKING
98	LogFlow(("ModuleInit: g_pIntNet=%p\n", g_pIntNet));
99	g_pIntNet = NULL;
100	LogFlow(("ModuleInit: g_pIntNet=%p should be NULL now...\n", g_pIntNet));
101	rc = INTNETR0Create(&g_pIntNet);
102	if (VBOX_SUCCESS(rc))
103	{
104	LogFlow(("ModuleInit: returns success. g_pIntNet=%p\n", g_pIntNet));
105	return VINF_SUCCESS;
106	}
107	g_pIntNet = NULL;
108	LogFlow(("ModuleTerm: returns %Vrc\n", rc));
109	#else
110	LogFlow(("ModuleInit: returns success.\n"));
111	return VINF_SUCCESS;
112	#endif
113	}
114	}
115	}
116
117	LogFlow(("ModuleInit: failed %Rrc\n", rc));
118	return rc;
119	}
120
121
122	/**
123	* Terminate the module.
124	* This is called when we're finally unloaded.
125	*/
126	VMMR0DECL(void) ModuleTerm(void)
127	{
128	LogFlow(("ModuleTerm:\n"));
129
130	#ifdef VBOX_WITH_INTERNAL_NETWORKING
131	/*
132	* Destroy the internal networking instance.
133	*/
134	if (g_pIntNet)
135	{
136	INTNETR0Destroy(g_pIntNet);
137	g_pIntNet = NULL;
138	}
139	#endif
140
141	/* Global HWACCM cleanup */
142	HWACCMR0Term();
143
144	/*
145	* Destroy the GMM and GVMM instances.
146	*/
147	GMMR0Term();
148	GVMMR0Term();
149
150	LogFlow(("ModuleTerm: returns\n"));
151	}
152
153
154	/**
155	* Initaties the R0 driver for a particular VM instance.
156	*
157	* @returns VBox status code.
158	*
159	* @param pVM The VM instance in question.
160	* @param uSvnRev The SVN revision of the ring-3 part.
161	* @thread EMT.
162	*/
163	static int VMMR0Init(PVM pVM, uint32_t uSvnRev)
164	{
165	/*
166	* Match the SVN revisions.
167	*/
168	if (uSvnRev != VMMGetSvnRev())
169	return VERR_VERSION_MISMATCH;
170	if ( !VALID_PTR(pVM)
171	\|\| pVM->pVMR0 != pVM)
172	return VERR_INVALID_PARAMETER;
173
174	/*
175	* Register the EMT R0 logger instance.
176	*/
177	PVMMR0LOGGER pR0Logger = pVM->vmm.s.pR0Logger;
178	if (pR0Logger)
179	{
180	#if 0 /* testing of the logger. */
181	LogCom(("VMMR0Init: before %p\n", RTLogDefaultInstance()));
182	LogCom(("VMMR0Init: pfnFlush=%p actual=%p\n", pR0Logger->Logger.pfnFlush, vmmR0LoggerFlush));
183	LogCom(("VMMR0Init: pfnLogger=%p actual=%p\n", pR0Logger->Logger.pfnLogger, vmmR0LoggerWrapper));
184	LogCom(("VMMR0Init: offScratch=%d fFlags=%#x fDestFlags=%#x\n", pR0Logger->Logger.offScratch, pR0Logger->Logger.fFlags, pR0Logger->Logger.fDestFlags));
185
186	RTLogSetDefaultInstanceThread(&pR0Logger->Logger, (uintptr_t)pVM->pSession);
187	LogCom(("VMMR0Init: after %p reg\n", RTLogDefaultInstance()));
188	RTLogSetDefaultInstanceThread(NULL, 0);
189	LogCom(("VMMR0Init: after %p dereg\n", RTLogDefaultInstance()));
190
191	pR0Logger->Logger.pfnLogger("hello ring-0 logger\n");
192	LogCom(("VMMR0Init: returned succesfully from direct logger call.\n"));
193	pR0Logger->Logger.pfnFlush(&pR0Logger->Logger);
194	LogCom(("VMMR0Init: returned succesfully from direct flush call.\n"));
195
196	RTLogSetDefaultInstanceThread(&pR0Logger->Logger, (uintptr_t)pVM->pSession);
197	LogCom(("VMMR0Init: after %p reg2\n", RTLogDefaultInstance()));
198	pR0Logger->Logger.pfnLogger("hello ring-0 logger\n");
199	LogCom(("VMMR0Init: returned succesfully from direct logger call (2). offScratch=%d\n", pR0Logger->Logger.offScratch));
200	RTLogSetDefaultInstanceThread(NULL, 0);
201	LogCom(("VMMR0Init: after %p dereg2\n", RTLogDefaultInstance()));
202
203	RTLogLoggerEx(&pR0Logger->Logger, 0, ~0U, "hello ring-0 logger (RTLogLoggerEx)\n");
204	LogCom(("VMMR0Init: RTLogLoggerEx returned fine offScratch=%d\n", pR0Logger->Logger.offScratch));
205
206	RTLogSetDefaultInstanceThread(&pR0Logger->Logger, (uintptr_t)pVM->pSession);
207	RTLogPrintf("hello ring-0 logger (RTLogPrintf)\n");
208	LogCom(("VMMR0Init: RTLogPrintf returned fine offScratch=%d\n", pR0Logger->Logger.offScratch));
209	#endif
210	Log(("Switching to per-thread logging instance %p (key=%p)\n", &pR0Logger->Logger, pVM->pSession));
211	RTLogSetDefaultInstanceThread(&pR0Logger->Logger, (uintptr_t)pVM->pSession);
212	}
213
214	/*
215	* Initialize the per VM data for GVMM and GMM.
216	*/
217	int rc = GVMMR0InitVM(pVM);
218	// if (RT_SUCCESS(rc))
219	// rc = GMMR0InitPerVMData(pVM);
220	if (RT_SUCCESS(rc))
221	{
222	/*
223	* Init HWACCM.
224	*/
225	rc = HWACCMR0InitVM(pVM);
226	if (RT_SUCCESS(rc))
227	{
228	/*
229	* Init CPUM.
230	*/
231	rc = CPUMR0Init(pVM);
232	if (RT_SUCCESS(rc))
233	return rc;
234	}
235	}
236
237	/* failed */
238	RTLogSetDefaultInstanceThread(NULL, 0);
239	return rc;
240	}
241
242
243	/**
244	* Terminates the R0 driver for a particular VM instance.
245	*
246	* @returns VBox status code.
247	*
248	* @param pVM The VM instance in question.
249	* @thread EMT.
250	*/
251	static int VMMR0Term(PVM pVM)
252	{
253	HWACCMR0TermVM(pVM);
254
255	/*
256	* Deregister the logger.
257	*/
258	RTLogSetDefaultInstanceThread(NULL, 0);
259	return VINF_SUCCESS;
260	}
261
262
263	/**
264	* Calls the ring-3 host code.
265	*
266	* @returns VBox status code of the ring-3 call.
267	* @param pVM The VM handle.
268	* @param enmOperation The operation.
269	* @param uArg The argument to the operation.
270	*/
271	VMMR0DECL(int) VMMR0CallHost(PVM pVM, VMMCALLHOST enmOperation, uint64_t uArg)
272	{
273	/** @todo profile this! */
274	pVM->vmm.s.enmCallHostOperation = enmOperation;
275	pVM->vmm.s.u64CallHostArg = uArg;
276	pVM->vmm.s.rcCallHost = VERR_INTERNAL_ERROR;
277	int rc = vmmR0CallHostLongJmp(&pVM->vmm.s.CallHostR0JmpBuf, VINF_VMM_CALL_HOST);
278	if (rc == VINF_SUCCESS)
279	rc = pVM->vmm.s.rcCallHost;
280	return rc;
281	}
282
283
284	#ifdef VBOX_WITH_STATISTICS
285	/**
286	* Record return code statistics
287	* @param pVM The VM handle.
288	* @param rc The status code.
289	*/
290	static void vmmR0RecordRC(PVM pVM, int rc)
291	{
292	/*
293	* Collect statistics.
294	*/
295	switch (rc)
296	{
297	case VINF_SUCCESS:
298	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetNormal);
299	break;
300	case VINF_EM_RAW_INTERRUPT:
301	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetInterrupt);
302	break;
303	case VINF_EM_RAW_INTERRUPT_HYPER:
304	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetInterruptHyper);
305	break;
306	case VINF_EM_RAW_GUEST_TRAP:
307	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetGuestTrap);
308	break;
309	case VINF_EM_RAW_RING_SWITCH:
310	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetRingSwitch);
311	break;
312	case VINF_EM_RAW_RING_SWITCH_INT:
313	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetRingSwitchInt);
314	break;
315	case VINF_EM_RAW_EXCEPTION_PRIVILEGED:
316	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetExceptionPrivilege);
317	break;
318	case VINF_EM_RAW_STALE_SELECTOR:
319	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetStaleSelector);
320	break;
321	case VINF_EM_RAW_IRET_TRAP:
322	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetIRETTrap);
323	break;
324	case VINF_IOM_HC_IOPORT_READ:
325	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetIORead);
326	break;
327	case VINF_IOM_HC_IOPORT_WRITE:
328	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetIOWrite);
329	break;
330	case VINF_IOM_HC_MMIO_READ:
331	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetMMIORead);
332	break;
333	case VINF_IOM_HC_MMIO_WRITE:
334	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetMMIOWrite);
335	break;
336	case VINF_IOM_HC_MMIO_READ_WRITE:
337	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetMMIOReadWrite);
338	break;
339	case VINF_PATM_HC_MMIO_PATCH_READ:
340	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetMMIOPatchRead);
341	break;
342	case VINF_PATM_HC_MMIO_PATCH_WRITE:
343	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetMMIOPatchWrite);
344	break;
345	case VINF_EM_RAW_EMULATE_INSTR:
346	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetEmulate);
347	break;
348	case VINF_PATCH_EMULATE_INSTR:
349	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetPatchEmulate);
350	break;
351	case VINF_EM_RAW_EMULATE_INSTR_LDT_FAULT:
352	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetLDTFault);
353	break;
354	case VINF_EM_RAW_EMULATE_INSTR_GDT_FAULT:
355	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetGDTFault);
356	break;
357	case VINF_EM_RAW_EMULATE_INSTR_IDT_FAULT:
358	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetIDTFault);
359	break;
360	case VINF_EM_RAW_EMULATE_INSTR_TSS_FAULT:
361	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetTSSFault);
362	break;
363	case VINF_EM_RAW_EMULATE_INSTR_PD_FAULT:
364	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetPDFault);
365	break;
366	case VINF_CSAM_PENDING_ACTION:
367	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetCSAMTask);
368	break;
369	case VINF_PGM_SYNC_CR3:
370	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetSyncCR3);
371	break;
372	case VINF_PATM_PATCH_INT3:
373	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetPatchInt3);
374	break;
375	case VINF_PATM_PATCH_TRAP_PF:
376	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetPatchPF);
377	break;
378	case VINF_PATM_PATCH_TRAP_GP:
379	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetPatchGP);
380	break;
381	case VINF_PATM_PENDING_IRQ_AFTER_IRET:
382	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetPatchIretIRQ);
383	break;
384	case VERR_REM_FLUSHED_PAGES_OVERFLOW:
385	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetPageOverflow);
386	break;
387	case VINF_EM_RESCHEDULE_REM:
388	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetRescheduleREM);
389	break;
390	case VINF_EM_RAW_TO_R3:
391	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetToR3);
392	break;
393	case VINF_EM_RAW_TIMER_PENDING:
394	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetTimerPending);
395	break;
396	case VINF_EM_RAW_INTERRUPT_PENDING:
397	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetInterruptPending);
398	break;
399	case VINF_VMM_CALL_HOST:
400	switch (pVM->vmm.s.enmCallHostOperation)
401	{
402	case VMMCALLHOST_PDM_LOCK:
403	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetPDMLock);
404	break;
405	case VMMCALLHOST_PDM_QUEUE_FLUSH:
406	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetPDMQueueFlush);
407	break;
408	case VMMCALLHOST_PGM_POOL_GROW:
409	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetPGMPoolGrow);
410	break;
411	case VMMCALLHOST_PGM_LOCK:
412	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetPGMLock);
413	break;
414	case VMMCALLHOST_REM_REPLAY_HANDLER_NOTIFICATIONS:
415	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetRemReplay);
416	break;
417	case VMMCALLHOST_PGM_RAM_GROW_RANGE:
418	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetPGMGrowRAM);
419	break;
420	case VMMCALLHOST_VMM_LOGGER_FLUSH:
421	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetLogFlush);
422	break;
423	case VMMCALLHOST_VM_SET_ERROR:
424	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetVMSetError);
425	break;
426	case VMMCALLHOST_VM_SET_RUNTIME_ERROR:
427	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetVMSetRuntimeError);
428	break;
429	case VMMCALLHOST_VM_R0_HYPER_ASSERTION:
430	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetHyperAssertion);
431	break;
432	default:
433	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetCallHost);
434	break;
435	}
436	break;
437	case VINF_PATM_DUPLICATE_FUNCTION:
438	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetPATMDuplicateFn);
439	break;
440	case VINF_PGM_CHANGE_MODE:
441	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetPGMChangeMode);
442	break;
443	case VINF_EM_RAW_EMULATE_INSTR_HLT:
444	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetEmulHlt);
445	break;
446	case VINF_EM_PENDING_REQUEST:
447	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetPendingRequest);
448	break;
449	default:
450	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetMisc);
451	break;
452	}
453	}
454	#endif /* VBOX_WITH_STATISTICS */
455
456
457
458	/**
459	* The Ring 0 entry point, called by the interrupt gate.
460	*
461	* @returns VBox status code.
462	* @param pVM The VM to operate on.
463	* @param enmOperation Which operation to execute.
464	* @param pvArg Argument to the operation.
465	* @remarks Assume called with interrupts disabled.
466	*/
467	VMMR0DECL(int) VMMR0EntryInt(PVM pVM, VMMR0OPERATION enmOperation, void *pvArg)
468	{
469	switch (enmOperation)
470	{
471	#ifdef VBOX_WITH_IDT_PATCHING
472	/*
473	* Switch to GC.
474	* These calls return whatever the GC returns.
475	*/
476	case VMMR0_DO_RAW_RUN:
477	{
478	/* Safety precaution as VMX disables the switcher. */
479	Assert(!pVM->vmm.s.fSwitcherDisabled);
480	if (pVM->vmm.s.fSwitcherDisabled)
481	return VERR_NOT_SUPPORTED;
482
483	STAM_COUNTER_INC(&pVM->vmm.s.StatRunGC);
484	register int rc;
485	pVM->vmm.s.iLastGCRc = rc = pVM->vmm.s.pfnR0HostToGuest(pVM);
486
487	#ifdef VBOX_WITH_STATISTICS
488	vmmR0RecordRC(pVM, rc);
489	#endif
490
491	/*
492	* We'll let TRPM change the stack frame so our return is different.
493	* Just keep in mind that after the call, things have changed!
494	*/
495	if ( rc == VINF_EM_RAW_INTERRUPT
496	\|\| rc == VINF_EM_RAW_INTERRUPT_HYPER)
497	{
498	/*
499	* Don't trust the compiler to get this right.
500	* gcc -fomit-frame-pointer screws up big time here. This works fine in 64-bit
501	* mode too because we push the arguments on the stack in the IDT patch code.
502	*/
503	# if defined(__GNUC__)
504	void pvRet = (uint8_t )__builtin_frame_address(0) + sizeof(void *);
505	# elif defined(_MSC_VER) && defined(RT_ARCH_AMD64) /** @todo check this with with VC7! */
506	void pvRet = (uint8_t )_AddressOfReturnAddress();
507	# elif defined(RT_ARCH_X86)
508	void pvRet = (uint8_t )&pVM - sizeof(pVM);
509	# else
510	# error "huh?"
511	# endif
512	if ( ((uintptr_t *)pvRet)[1] == (uintptr_t)pVM
513	&& ((uintptr_t *)pvRet)[2] == (uintptr_t)enmOperation
514	&& ((uintptr_t *)pvRet)[3] == (uintptr_t)pvArg)
515	TRPMR0SetupInterruptDispatcherFrame(pVM, pvRet);
516	else
517	{
518	# if defined(DEBUG) \|\| defined(LOG_ENABLED)
519	static bool s_fHaveWarned = false;
520	if (!s_fHaveWarned)
521	{
522	s_fHaveWarned = true;
523	RTLogPrintf("VMMR0.r0: The compiler can't find the stack frame!\n");
524	RTLogComPrintf("VMMR0.r0: The compiler can't find the stack frame!\n");
525	}
526	# endif
527	TRPMR0DispatchHostInterrupt(pVM);
528	}
529	}
530	return rc;
531	}
532
533	/*
534	* Switch to GC to execute Hypervisor function.
535	*/
536	case VMMR0_DO_CALL_HYPERVISOR:
537	{
538	/* Safety precaution as VMX disables the switcher. */
539	Assert(!pVM->vmm.s.fSwitcherDisabled);
540	if (pVM->vmm.s.fSwitcherDisabled)
541	return VERR_NOT_SUPPORTED;
542
543	RTCCUINTREG fFlags = ASMIntDisableFlags();
544	int rc = pVM->vmm.s.pfnR0HostToGuest(pVM);
545	/** @todo dispatch interrupts? */
546	ASMSetFlags(fFlags);
547	return rc;
548	}
549
550	/*
551	* For profiling.
552	*/
553	case VMMR0_DO_NOP:
554	return VINF_SUCCESS;
555	#endif /* VBOX_WITH_IDT_PATCHING */
556
557	default:
558	/*
559	* We're returning VERR_NOT_SUPPORT here so we've got something else
560	* than -1 which the interrupt gate glue code might return.
561	*/
562	Log(("operation %#x is not supported\n", enmOperation));
563	return VERR_NOT_SUPPORTED;
564	}
565	}
566
567
568	/**
569	* The Ring 0 entry point, called by the fast-ioctl path.
570	*
571	* @param pVM The VM to operate on.
572	* The return code is stored in pVM->vmm.s.iLastGCRc.
573	* @param enmOperation Which operation to execute.
574	* @remarks Assume called with interrupts _enabled_.
575	*/
576	VMMR0DECL(void) VMMR0EntryFast(PVM pVM, VMMR0OPERATION enmOperation)
577	{
578	switch (enmOperation)
579	{
580	/*
581	* Switch to GC and run guest raw mode code.
582	* Disable interrupts before doing the world switch.
583	*/
584	case VMMR0_DO_RAW_RUN:
585	{
586	/* Safety precaution as hwaccm disables the switcher. */
587	if (RT_LIKELY(!pVM->vmm.s.fSwitcherDisabled))
588	{
589	RTCCUINTREG uFlags = ASMIntDisableFlags();
590
591	TMNotifyStartOfExecution(pVM);
592	int rc = pVM->vmm.s.pfnR0HostToGuest(pVM);
593	pVM->vmm.s.iLastGCRc = rc;
594	TMNotifyEndOfExecution(pVM);
595
596	if ( rc == VINF_EM_RAW_INTERRUPT
597	\|\| rc == VINF_EM_RAW_INTERRUPT_HYPER)
598	TRPMR0DispatchHostInterrupt(pVM);
599
600	ASMSetFlags(uFlags);
601
602	#ifdef VBOX_WITH_STATISTICS
603	STAM_COUNTER_INC(&pVM->vmm.s.StatRunGC);
604	vmmR0RecordRC(pVM, rc);
605	#endif
606	}
607	else
608	{
609	Assert(!pVM->vmm.s.fSwitcherDisabled);
610	pVM->vmm.s.iLastGCRc = VERR_NOT_SUPPORTED;
611	}
612	break;
613	}
614
615	/*
616	* Run guest code using the available hardware acceleration technology.
617	*
618	* Disable interrupts before we do anything interesting. On Windows we avoid
619	* this by having the support driver raise the IRQL before calling us, this way
620	* we hope to get away we page faults and later calling into the kernel.
621	*/
622	case VMMR0_DO_HWACC_RUN:
623	{
624	STAM_COUNTER_INC(&pVM->vmm.s.StatRunGC);
625
626	#ifndef RT_OS_WINDOWS /** @todo check other hosts */
627	RTCCUINTREG uFlags = ASMIntDisableFlags();
628	#endif
629	int rc = HWACCMR0Enter(pVM);
630	if (VBOX_SUCCESS(rc))
631	{
632	rc = vmmR0CallHostSetJmp(&pVM->vmm.s.CallHostR0JmpBuf, HWACCMR0RunGuestCode, pVM); /* this may resume code. */
633	int rc2 = HWACCMR0Leave(pVM);
634	AssertRC(rc2);
635	}
636	pVM->vmm.s.iLastGCRc = rc;
637	#ifndef RT_OS_WINDOWS /** @todo check other hosts */
638	ASMSetFlags(uFlags);
639	#endif
640
641	#ifdef VBOX_WITH_STATISTICS
642	vmmR0RecordRC(pVM, rc);
643	#endif
644	/* No special action required for external interrupts, just return. */
645	break;
646	}
647
648	/*
649	* For profiling.
650	*/
651	case VMMR0_DO_NOP:
652	pVM->vmm.s.iLastGCRc = VINF_SUCCESS;
653	break;
654
655	/*
656	* Impossible.
657	*/
658	default:
659	AssertMsgFailed(("%#x\n", enmOperation));
660	pVM->vmm.s.iLastGCRc = VERR_NOT_SUPPORTED;
661	break;
662	}
663	}
664
665
666	/**
667	* Validates a session or VM session argument.
668	*
669	* @returns true / false accordingly.
670	* @param pVM The VM argument.
671	* @param pSession The session argument.
672	*/
673	DECLINLINE(bool) vmmR0IsValidSession(PVM pVM, PSUPDRVSESSION pClaimedSession, PSUPDRVSESSION pSession)
674	{
675	/* This must be set! */
676	if (!pSession)
677	return false;
678
679	/* Only one out of the two. */
680	if (pVM && pClaimedSession)
681	return false;
682	if (pVM)
683	pClaimedSession = pVM->pSession;
684	return pClaimedSession == pSession;
685	}
686
687
688	/**
689	* VMMR0EntryEx worker function, either called directly or when ever possible
690	* called thru a longjmp so we can exit safely on failure.
691	*
692	* @returns VBox status code.
693	* @param pVM The VM to operate on.
694	* @param enmOperation Which operation to execute.
695	* @param pReqHdr This points to a SUPVMMR0REQHDR packet. Optional.
696	* The support driver validates this if it's present.
697	* @param u64Arg Some simple constant argument.
698	* @param pSession The session of the caller.
699	* @remarks Assume called with interrupts _enabled_.
700	*/
701	static int vmmR0EntryExWorker(PVM pVM, VMMR0OPERATION enmOperation, PSUPVMMR0REQHDR pReqHdr, uint64_t u64Arg, PSUPDRVSESSION pSession)
702	{
703	/*
704	* Common VM pointer validation.
705	*/
706	if (pVM)
707	{
708	if (RT_UNLIKELY( !VALID_PTR(pVM)
709	\|\| ((uintptr_t)pVM & PAGE_OFFSET_MASK)))
710	{
711	SUPR0Printf("vmmR0EntryExWorker: Invalid pVM=%p! (op=%d)\n", pVM, enmOperation);
712	return VERR_INVALID_POINTER;
713	}
714	if (RT_UNLIKELY( pVM->enmVMState < VMSTATE_CREATING
715	\|\| pVM->enmVMState > VMSTATE_TERMINATED
716	\|\| pVM->pVMR0 != pVM))
717	{
718	SUPR0Printf("vmmR0EntryExWorker: Invalid pVM=%p:{enmVMState=%d, .pVMR0=%p}! (op=%d)\n",
719	pVM, pVM->enmVMState, pVM->pVMR0, enmOperation);
720	return VERR_INVALID_POINTER;
721	}
722	}
723
724	switch (enmOperation)
725	{
726	/*
727	* GVM requests
728	*/
729	case VMMR0_DO_GVMM_CREATE_VM:
730	if (pVM \|\| u64Arg)
731	return VERR_INVALID_PARAMETER;
732	return GVMMR0CreateVMReq((PGVMMCREATEVMREQ)pReqHdr);
733
734	case VMMR0_DO_GVMM_DESTROY_VM:
735	if (pReqHdr \|\| u64Arg)
736	return VERR_INVALID_PARAMETER;
737	return GVMMR0DestroyVM(pVM);
738
739	case VMMR0_DO_GVMM_SCHED_HALT:
740	if (pReqHdr)
741	return VERR_INVALID_PARAMETER;
742	return GVMMR0SchedHalt(pVM, u64Arg);
743
744	case VMMR0_DO_GVMM_SCHED_WAKE_UP:
745	if (pReqHdr \|\| u64Arg)
746	return VERR_INVALID_PARAMETER;
747	return GVMMR0SchedWakeUp(pVM);
748
749	case VMMR0_DO_GVMM_SCHED_POLL:
750	if (pReqHdr \|\| u64Arg > 1)
751	return VERR_INVALID_PARAMETER;
752	return GVMMR0SchedPoll(pVM, !!u64Arg);
753
754	case VMMR0_DO_GVMM_QUERY_STATISTICS:
755	if (u64Arg)
756	return VERR_INVALID_PARAMETER;
757	return GVMMR0QueryStatisticsReq(pVM, (PGVMMQUERYSTATISTICSSREQ)pReqHdr);
758
759	case VMMR0_DO_GVMM_RESET_STATISTICS:
760	if (u64Arg)
761	return VERR_INVALID_PARAMETER;
762	return GVMMR0ResetStatisticsReq(pVM, (PGVMMRESETSTATISTICSSREQ)pReqHdr);
763
764	/*
765	* Initialize the R0 part of a VM instance.
766	*/
767	case VMMR0_DO_VMMR0_INIT:
768	return VMMR0Init(pVM, (uint32_t)u64Arg);
769
770	/*
771	* Terminate the R0 part of a VM instance.
772	*/
773	case VMMR0_DO_VMMR0_TERM:
774	return VMMR0Term(pVM);
775
776	/*
777	* Attempt to enable hwacc mode and check the current setting.
778	*
779	*/
780	case VMMR0_DO_HWACC_ENABLE:
781	return HWACCMR0EnableAllCpus(pVM, (HWACCMSTATE)u64Arg);
782
783	/*
784	* Setup the hardware accelerated raw-mode session.
785	*/
786	case VMMR0_DO_HWACC_SETUP_VM:
787	{
788	RTCCUINTREG fFlags = ASMIntDisableFlags();
789	int rc = HWACCMR0SetupVM(pVM);
790	ASMSetFlags(fFlags);
791	return rc;
792	}
793
794	/*
795	* Switch to GC to execute Hypervisor function.
796	*/
797	case VMMR0_DO_CALL_HYPERVISOR:
798	{
799	/* Safety precaution as HWACCM can disable the switcher. */
800	Assert(!pVM->vmm.s.fSwitcherDisabled);
801	if (RT_UNLIKELY(pVM->vmm.s.fSwitcherDisabled))
802	return VERR_NOT_SUPPORTED;
803
804	RTCCUINTREG fFlags = ASMIntDisableFlags();
805	int rc = pVM->vmm.s.pfnR0HostToGuest(pVM);
806	/** @todo dispatch interrupts? */
807	ASMSetFlags(fFlags);
808	return rc;
809	}
810
811	/*
812	* PGM wrappers.
813	*/
814	case VMMR0_DO_PGM_ALLOCATE_HANDY_PAGES:
815	return PGMR0PhysAllocateHandyPages(pVM);
816
817	/*
818	* GMM wrappers.
819	*/
820	case VMMR0_DO_GMM_INITIAL_RESERVATION:
821	if (u64Arg)
822	return VERR_INVALID_PARAMETER;
823	return GMMR0InitialReservationReq(pVM, (PGMMINITIALRESERVATIONREQ)pReqHdr);
824	case VMMR0_DO_GMM_UPDATE_RESERVATION:
825	if (u64Arg)
826	return VERR_INVALID_PARAMETER;
827	return GMMR0UpdateReservationReq(pVM, (PGMMUPDATERESERVATIONREQ)pReqHdr);
828
829	case VMMR0_DO_GMM_ALLOCATE_PAGES:
830	if (u64Arg)
831	return VERR_INVALID_PARAMETER;
832	return GMMR0AllocatePagesReq(pVM, (PGMMALLOCATEPAGESREQ)pReqHdr);
833	case VMMR0_DO_GMM_FREE_PAGES:
834	if (u64Arg)
835	return VERR_INVALID_PARAMETER;
836	return GMMR0FreePagesReq(pVM, (PGMMFREEPAGESREQ)pReqHdr);
837	case VMMR0_DO_GMM_BALLOONED_PAGES:
838	if (u64Arg)
839	return VERR_INVALID_PARAMETER;
840	return GMMR0BalloonedPagesReq(pVM, (PGMMBALLOONEDPAGESREQ)pReqHdr);
841	case VMMR0_DO_GMM_DEFLATED_BALLOON:
842	if (pReqHdr)
843	return VERR_INVALID_PARAMETER;
844	return GMMR0DeflatedBalloon(pVM, (uint32_t)u64Arg);
845
846	case VMMR0_DO_GMM_MAP_UNMAP_CHUNK:
847	if (u64Arg)
848	return VERR_INVALID_PARAMETER;
849	return GMMR0MapUnmapChunkReq(pVM, (PGMMMAPUNMAPCHUNKREQ)pReqHdr);
850	case VMMR0_DO_GMM_SEED_CHUNK:
851	if (pReqHdr)
852	return VERR_INVALID_PARAMETER;
853	return GMMR0SeedChunk(pVM, (RTR3PTR)u64Arg);
854
855	/*
856	* A quick GCFGM mock-up.
857	*/
858	/** @todo GCFGM with proper access control, ring-3 management interface and all that. */
859	case VMMR0_DO_GCFGM_SET_VALUE:
860	case VMMR0_DO_GCFGM_QUERY_VALUE:
861	{
862	if (pVM \|\| !pReqHdr \|\| u64Arg)
863	return VERR_INVALID_PARAMETER;
864	PGCFGMVALUEREQ pReq = (PGCFGMVALUEREQ)pReqHdr;
865	if (pReq->Hdr.cbReq != sizeof(*pReq))
866	return VERR_INVALID_PARAMETER;
867	int rc;
868	if (enmOperation == VMMR0_DO_GCFGM_SET_VALUE)
869	{
870	rc = GVMMR0SetConfig(pReq->pSession, &pReq->szName[0], pReq->u64Value);
871	//if (rc == VERR_CFGM_VALUE_NOT_FOUND)
872	// rc = GMMR0SetConfig(pReq->pSession, &pReq->szName[0], pReq->u64Value);
873	}
874	else
875	{
876	rc = GVMMR0QueryConfig(pReq->pSession, &pReq->szName[0], &pReq->u64Value);
877	//if (rc == VERR_CFGM_VALUE_NOT_FOUND)
878	// rc = GMMR0QueryConfig(pReq->pSession, &pReq->szName[0], &pReq->u64Value);
879	}
880	return rc;
881	}
882
883
884	#ifdef VBOX_WITH_INTERNAL_NETWORKING
885	/*
886	* Requests to the internal networking service.
887	*/
888	case VMMR0_DO_INTNET_OPEN:
889	{
890	PINTNETOPENREQ pReq = (PINTNETOPENREQ)pReqHdr;
891	if (u64Arg \|\| !pReq \|\| !vmmR0IsValidSession(pVM, pReq->pSession, pSession))
892	return VERR_INVALID_PARAMETER;
893	if (!g_pIntNet)
894	return VERR_NOT_SUPPORTED;
895	return INTNETR0OpenReq(g_pIntNet, pSession, pReq);
896	}
897
898	case VMMR0_DO_INTNET_IF_CLOSE:
899	if (u64Arg \|\| !pReqHdr \|\| !vmmR0IsValidSession(pVM, ((PINTNETIFCLOSEREQ)pReqHdr)->pSession, pSession))
900	return VERR_INVALID_PARAMETER;
901	if (!g_pIntNet)
902	return VERR_NOT_SUPPORTED;
903	return INTNETR0IfCloseReq(g_pIntNet, pSession, (PINTNETIFCLOSEREQ)pReqHdr);
904
905	case VMMR0_DO_INTNET_IF_GET_RING3_BUFFER:
906	if (u64Arg \|\| !pReqHdr \|\| !vmmR0IsValidSession(pVM, ((PINTNETIFGETRING3BUFFERREQ)pReqHdr)->pSession, pSession))
907	return VERR_INVALID_PARAMETER;
908	if (!g_pIntNet)
909	return VERR_NOT_SUPPORTED;
910	return INTNETR0IfGetRing3BufferReq(g_pIntNet, pSession, (PINTNETIFGETRING3BUFFERREQ)pReqHdr);
911
912	case VMMR0_DO_INTNET_IF_SET_PROMISCUOUS_MODE:
913	if (u64Arg \|\| !pReqHdr \|\| !vmmR0IsValidSession(pVM, ((PINTNETIFSETPROMISCUOUSMODEREQ)pReqHdr)->pSession, pSession))
914	return VERR_INVALID_PARAMETER;
915	if (!g_pIntNet)
916	return VERR_NOT_SUPPORTED;
917	return INTNETR0IfSetPromiscuousModeReq(g_pIntNet, pSession, (PINTNETIFSETPROMISCUOUSMODEREQ)pReqHdr);
918
919	case VMMR0_DO_INTNET_IF_SET_MAC_ADDRESS:
920	if (u64Arg \|\| !pReqHdr \|\| !vmmR0IsValidSession(pVM, ((PINTNETIFSETMACADDRESSREQ)pReqHdr)->pSession, pSession))
921	return VERR_INVALID_PARAMETER;
922	if (!g_pIntNet)
923	return VERR_NOT_SUPPORTED;
924	return INTNETR0IfSetMacAddressReq(g_pIntNet, pSession, (PINTNETIFSETMACADDRESSREQ)pReqHdr);
925
926	case VMMR0_DO_INTNET_IF_SET_ACTIVE:
927	if (u64Arg \|\| !pReqHdr \|\| !vmmR0IsValidSession(pVM, ((PINTNETIFSETACTIVEREQ)pReqHdr)->pSession, pSession))
928	return VERR_INVALID_PARAMETER;
929	if (!g_pIntNet)
930	return VERR_NOT_SUPPORTED;
931	return INTNETR0IfSetActiveReq(g_pIntNet, pSession, (PINTNETIFSETACTIVEREQ)pReqHdr);
932
933	case VMMR0_DO_INTNET_IF_SEND:
934	if (u64Arg \|\| !pReqHdr \|\| !vmmR0IsValidSession(pVM, ((PINTNETIFSENDREQ)pReqHdr)->pSession, pSession))
935	return VERR_INVALID_PARAMETER;
936	if (!g_pIntNet)
937	return VERR_NOT_SUPPORTED;
938	return INTNETR0IfSendReq(g_pIntNet, pSession, (PINTNETIFSENDREQ)pReqHdr);
939
940	case VMMR0_DO_INTNET_IF_WAIT:
941	if (u64Arg \|\| !pReqHdr \|\| !vmmR0IsValidSession(pVM, ((PINTNETIFWAITREQ)pReqHdr)->pSession, pSession))
942	return VERR_INVALID_PARAMETER;
943	if (!g_pIntNet)
944	return VERR_NOT_SUPPORTED;
945	return INTNETR0IfWaitReq(g_pIntNet, pSession, (PINTNETIFWAITREQ)pReqHdr);
946	#endif /* VBOX_WITH_INTERNAL_NETWORKING */
947
948	/*
949	* For profiling.
950	*/
951	case VMMR0_DO_NOP:
952	case VMMR0_DO_SLOW_NOP:
953	return VINF_SUCCESS;
954
955	/*
956	* For testing Ring-0 APIs invoked in this environment.
957	*/
958	case VMMR0_DO_TESTS:
959	/** @todo make new test */
960	return VINF_SUCCESS;
961
962
963	default:
964	/*
965	* We're returning VERR_NOT_SUPPORT here so we've got something else
966	* than -1 which the interrupt gate glue code might return.
967	*/
968	Log(("operation %#x is not supported\n", enmOperation));
969	return VERR_NOT_SUPPORTED;
970	}
971	}
972
973
974	/**
975	* Argument for vmmR0EntryExWrapper containing the argument s ofr VMMR0EntryEx.
976	*/
977	typedef struct VMMR0ENTRYEXARGS
978	{
979	PVM pVM;
980	VMMR0OPERATION enmOperation;
981	PSUPVMMR0REQHDR pReq;
982	uint64_t u64Arg;
983	PSUPDRVSESSION pSession;
984	} VMMR0ENTRYEXARGS;
985	/** Pointer to a vmmR0EntryExWrapper argument package. */
986	typedef VMMR0ENTRYEXARGS *PVMMR0ENTRYEXARGS;
987
988	/**
989	* This is just a longjmp wrapper function for VMMR0EntryEx calls.
990	*
991	* @returns VBox status code.
992	* @param pvArgs The argument package
993	*/
994	static int vmmR0EntryExWrapper(void *pvArgs)
995	{
996	return vmmR0EntryExWorker(((PVMMR0ENTRYEXARGS)pvArgs)->pVM,
997	((PVMMR0ENTRYEXARGS)pvArgs)->enmOperation,
998	((PVMMR0ENTRYEXARGS)pvArgs)->pReq,
999	((PVMMR0ENTRYEXARGS)pvArgs)->u64Arg,
1000	((PVMMR0ENTRYEXARGS)pvArgs)->pSession);
1001	}
1002
1003
1004	/**
1005	* The Ring 0 entry point, called by the support library (SUP).
1006	*
1007	* @returns VBox status code.
1008	* @param pVM The VM to operate on.
1009	* @param enmOperation Which operation to execute.
1010	* @param pReq This points to a SUPVMMR0REQHDR packet. Optional.
1011	* @param u64Arg Some simple constant argument.
1012	* @param pSession The session of the caller.
1013	* @remarks Assume called with interrupts _enabled_.
1014	*/
1015	VMMR0DECL(int) VMMR0EntryEx(PVM pVM, VMMR0OPERATION enmOperation, PSUPVMMR0REQHDR pReq, uint64_t u64Arg, PSUPDRVSESSION pSession)
1016	{
1017	/*
1018	* Requests that should only happen on the EMT thread will be
1019	* wrapped in a setjmp so we can assert without causing trouble.
1020	*/
1021	if ( VALID_PTR(pVM)
1022	&& pVM->pVMR0)
1023	{
1024	switch (enmOperation)
1025	{
1026	case VMMR0_DO_VMMR0_INIT:
1027	case VMMR0_DO_VMMR0_TERM:
1028	case VMMR0_DO_GMM_INITIAL_RESERVATION:
1029	case VMMR0_DO_GMM_UPDATE_RESERVATION:
1030	case VMMR0_DO_GMM_ALLOCATE_PAGES:
1031	case VMMR0_DO_GMM_FREE_PAGES:
1032	case VMMR0_DO_GMM_BALLOONED_PAGES:
1033	case VMMR0_DO_GMM_DEFLATED_BALLOON:
1034	case VMMR0_DO_GMM_MAP_UNMAP_CHUNK:
1035	case VMMR0_DO_GMM_SEED_CHUNK:
1036	{
1037	/** @todo validate this EMT claim... GVM knows. */
1038	VMMR0ENTRYEXARGS Args;
1039	Args.pVM = pVM;
1040	Args.enmOperation = enmOperation;
1041	Args.pReq = pReq;
1042	Args.u64Arg = u64Arg;
1043	Args.pSession = pSession;
1044	return vmmR0CallHostSetJmpEx(&pVM->vmm.s.CallHostR0JmpBuf, vmmR0EntryExWrapper, &Args);
1045	}
1046
1047	default:
1048	break;
1049	}
1050	}
1051	return vmmR0EntryExWorker(pVM, enmOperation, pReq, u64Arg, pSession);
1052	}
1053
1054
1055
1056	/**
1057	* Internal R0 logger worker: Flush logger.
1058	*
1059	* @param pLogger The logger instance to flush.
1060	* @remark This function must be exported!
1061	*/
1062	VMMR0DECL(void) vmmR0LoggerFlush(PRTLOGGER pLogger)
1063	{
1064	/*
1065	* Convert the pLogger into a VM handle and 'call' back to Ring-3.
1066	* (This is a bit paranoid code.)
1067	*/
1068	PVMMR0LOGGER pR0Logger = (PVMMR0LOGGER)((uintptr_t)pLogger - RT_OFFSETOF(VMMR0LOGGER, Logger));
1069	if ( !VALID_PTR(pR0Logger)
1070	\|\| !VALID_PTR(pR0Logger + 1)
1071	\|\| !VALID_PTR(pLogger)
1072	\|\| pLogger->u32Magic != RTLOGGER_MAGIC)
1073	{
1074	#ifdef DEBUG
1075	SUPR0Printf("vmmR0LoggerFlush: pLogger=%p!\n", pLogger);
1076	#endif
1077	return;
1078	}
1079
1080	PVM pVM = pR0Logger->pVM;
1081	if ( !VALID_PTR(pVM)
1082	\|\| pVM->pVMR0 != pVM)
1083	{
1084	#ifdef DEBUG
1085	SUPR0Printf("vmmR0LoggerFlush: pVM=%p! pVMR0=%p! pLogger=%p\n", pVM, pVM->pVMR0, pLogger);
1086	#endif
1087	return;
1088	}
1089
1090	/*
1091	* Check that the jump buffer is armed.
1092	*/
1093	#ifdef RT_ARCH_X86
1094	if (!pVM->vmm.s.CallHostR0JmpBuf.eip)
1095	#else
1096	if (!pVM->vmm.s.CallHostR0JmpBuf.rip)
1097	#endif
1098	{
1099	#ifdef DEBUG
1100	SUPR0Printf("vmmR0LoggerFlush: Jump buffer isn't armed!\n");
1101	#endif
1102	pLogger->offScratch = 0;
1103	return;
1104	}
1105	VMMR0CallHost(pVM, VMMCALLHOST_VMM_LOGGER_FLUSH, 0);
1106	}
1107
1108
1109
1110	/**
1111	* Jump back to ring-3 if we're the EMT and the longjmp is armed.
1112	*
1113	* @returns true if the breakpoint should be hit, false if it should be ignored.
1114	* @remark The RTDECL() makes this a bit difficult to override on windows. Sorry.
1115	*/
1116	DECLEXPORT(bool) RTCALL RTAssertDoBreakpoint(void)
1117	{
1118	PVM pVM = GVMMR0GetVMByEMT(NIL_RTNATIVETHREAD);
1119	if (pVM)
1120	{
1121	#ifdef RT_ARCH_X86
1122	if (pVM->vmm.s.CallHostR0JmpBuf.eip)
1123	#else
1124	if (pVM->vmm.s.CallHostR0JmpBuf.rip)
1125	#endif
1126	{
1127	int rc = VMMR0CallHost(pVM, VMMCALLHOST_VM_R0_HYPER_ASSERTION, 0);
1128	return RT_FAILURE_NP(rc);
1129	}
1130	}
1131	#ifdef RT_OS_LINUX
1132	return true;
1133	#else
1134	return false;
1135	#endif
1136	}
1137
1138
1139
1140	/**
1141	* Override this so we can push it up to ring-3.
1142	*
1143	* @param pszExpr Expression. Can be NULL.
1144	* @param uLine Location line number.
1145	* @param pszFile Location file name.
1146	* @param pszFunction Location function name.
1147	*/
1148	DECLEXPORT(void) RTCALL AssertMsg1(const char pszExpr, unsigned uLine, const char pszFile, const char *pszFunction)
1149	{
1150	#ifndef DEBUG_sandervl
1151	SUPR0Printf("\n!!R0-Assertion Failed!!\n"
1152	"Expression: %s\n"
1153	"Location : %s(%d) %s\n",
1154	pszExpr, pszFile, uLine, pszFunction);
1155	#endif
1156	LogAlways(("\n!!R0-Assertion Failed!!\n"
1157	"Expression: %s\n"
1158	"Location : %s(%d) %s\n",
1159	pszExpr, pszFile, uLine, pszFunction));
1160
1161	PVM pVM = GVMMR0GetVMByEMT(NIL_RTNATIVETHREAD);
1162	if (pVM)
1163	RTStrPrintf(pVM->vmm.s.szRing0AssertMsg1, sizeof(pVM->vmm.s.szRing0AssertMsg1),
1164	"\n!!R0-Assertion Failed!!\n"
1165	"Expression: %s\n"
1166	"Location : %s(%d) %s\n",
1167	pszExpr, pszFile, uLine, pszFunction);
1168	}
1169
1170
1171	/**
1172	* Callback for RTLogFormatV which writes to the ring-3 log port.
1173	* See PFNLOGOUTPUT() for details.
1174	*/
1175	static DECLCALLBACK(size_t) rtLogOutput(void pv, const char pachChars, size_t cbChars)
1176	{
1177	for (size_t i = 0; i < cbChars; i++)
1178	{
1179	#ifndef DEBUG_sandervl
1180	SUPR0Printf("%c", pachChars[i]);
1181	#endif
1182	LogAlways(("%c", pachChars[i]));
1183	}
1184
1185	return cbChars;
1186	}
1187
1188
1189	DECLEXPORT(void) RTCALL AssertMsg2(const char *pszFormat, ...)
1190	{
1191	PRTLOGGER pLog = RTLogDefaultInstance(); /** @todo we want this for release as well! */
1192	if (pLog)
1193	{
1194	va_list va;
1195	va_start(va, pszFormat);
1196	RTLogFormatV(rtLogOutput, pLog, pszFormat, va);
1197	va_end(va);
1198
1199	PVM pVM = GVMMR0GetVMByEMT(NIL_RTNATIVETHREAD);
1200	if (pVM)
1201	{
1202	va_start(va, pszFormat);
1203	RTStrPrintfV(pVM->vmm.s.szRing0AssertMsg2, sizeof(pVM->vmm.s.szRing0AssertMsg2), pszFormat, va);
1204	va_end(va);
1205	}
1206	}
1207	}
1208
1209

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source: vbox/trunk/src/VBox/VMM/VMMR0/VMMR0.cpp@ 13049

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