VMMR0.cpp@ 14499

Last change on this file since 14499 was 14499, checked in by vboxsync, 16 years ago
VMM: Don't try use the invalid pvSavedStack pointer on darwin, set it to NULL instead. (assertions on EMT would cause corruption or crash)
Property svn:eol-style set to `native` Property svn:keywords set to `Id`
File size: 40.9 KB

Line
1	/* $Id: VMMR0.cpp 14499 2008-11-24 01:48:34Z 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	#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
94	rc = PGMR0DynMapInit();
95	#endif
96	if (RT_SUCCESS(rc))
97	{
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 (RT_SUCCESS(rc))
103	{
104	LogFlow(("ModuleInit: returns success. g_pIntNet=%p\n", g_pIntNet));
105	return VINF_SUCCESS;
106	}
107
108	/* bail out */
109	g_pIntNet = NULL;
110	LogFlow(("ModuleTerm: returns %Rrc\n", rc));
111	#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
112	PGMR0DynMapTerm();
113	#endif
114	}
115	HWACCMR0Term();
116	}
117	GMMR0Term();
118	}
119	GVMMR0Term();
120	}
121
122	LogFlow(("ModuleInit: failed %Rrc\n", rc));
123	return rc;
124	}
125
126
127	/**
128	* Terminate the module.
129	* This is called when we're finally unloaded.
130	*/
131	VMMR0DECL(void) ModuleTerm(void)
132	{
133	LogFlow(("ModuleTerm:\n"));
134
135	/*
136	* Destroy the internal networking instance.
137	*/
138	if (g_pIntNet)
139	{
140	INTNETR0Destroy(g_pIntNet);
141	g_pIntNet = NULL;
142	}
143
144	/*
145	* PGM (Darwin) and HWACCM global cleanup.
146	* Destroy the GMM and GVMM instances.
147	*/
148	#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
149	PGMR0DynMapTerm();
150	#endif
151	HWACCMR0Term();
152
153	GMMR0Term();
154	GVMMR0Term();
155
156	LogFlow(("ModuleTerm: returns\n"));
157	}
158
159
160	/**
161	* Initaties the R0 driver for a particular VM instance.
162	*
163	* @returns VBox status code.
164	*
165	* @param pVM The VM instance in question.
166	* @param uSvnRev The SVN revision of the ring-3 part.
167	* @thread EMT.
168	*/
169	static int vmmR0InitVM(PVM pVM, uint32_t uSvnRev)
170	{
171	/*
172	* Match the SVN revisions.
173	*/
174	if (uSvnRev != VMMGetSvnRev())
175	return VERR_VERSION_MISMATCH;
176	if ( !VALID_PTR(pVM)
177	\|\| pVM->pVMR0 != pVM)
178	return VERR_INVALID_PARAMETER;
179
180	/*
181	* Register the EMT R0 logger instance.
182	*/
183	PVMMR0LOGGER pR0Logger = pVM->vmm.s.pR0LoggerR0;
184	if (pR0Logger)
185	{
186	#if 0 /* testing of the logger. */
187	LogCom(("vmmR0InitVM: before %p\n", RTLogDefaultInstance()));
188	LogCom(("vmmR0InitVM: pfnFlush=%p actual=%p\n", pR0Logger->Logger.pfnFlush, vmmR0LoggerFlush));
189	LogCom(("vmmR0InitVM: pfnLogger=%p actual=%p\n", pR0Logger->Logger.pfnLogger, vmmR0LoggerWrapper));
190	LogCom(("vmmR0InitVM: offScratch=%d fFlags=%#x fDestFlags=%#x\n", pR0Logger->Logger.offScratch, pR0Logger->Logger.fFlags, pR0Logger->Logger.fDestFlags));
191
192	RTLogSetDefaultInstanceThread(&pR0Logger->Logger, (uintptr_t)pVM->pSession);
193	LogCom(("vmmR0InitVM: after %p reg\n", RTLogDefaultInstance()));
194	RTLogSetDefaultInstanceThread(NULL, 0);
195	LogCom(("vmmR0InitVM: after %p dereg\n", RTLogDefaultInstance()));
196
197	pR0Logger->Logger.pfnLogger("hello ring-0 logger\n");
198	LogCom(("vmmR0InitVM: returned succesfully from direct logger call.\n"));
199	pR0Logger->Logger.pfnFlush(&pR0Logger->Logger);
200	LogCom(("vmmR0InitVM: returned succesfully from direct flush call.\n"));
201
202	RTLogSetDefaultInstanceThread(&pR0Logger->Logger, (uintptr_t)pVM->pSession);
203	LogCom(("vmmR0InitVM: after %p reg2\n", RTLogDefaultInstance()));
204	pR0Logger->Logger.pfnLogger("hello ring-0 logger\n");
205	LogCom(("vmmR0InitVM: returned succesfully from direct logger call (2). offScratch=%d\n", pR0Logger->Logger.offScratch));
206	RTLogSetDefaultInstanceThread(NULL, 0);
207	LogCom(("vmmR0InitVM: after %p dereg2\n", RTLogDefaultInstance()));
208
209	RTLogLoggerEx(&pR0Logger->Logger, 0, ~0U, "hello ring-0 logger (RTLogLoggerEx)\n");
210	LogCom(("vmmR0InitVM: RTLogLoggerEx returned fine offScratch=%d\n", pR0Logger->Logger.offScratch));
211
212	RTLogSetDefaultInstanceThread(&pR0Logger->Logger, (uintptr_t)pVM->pSession);
213	RTLogPrintf("hello ring-0 logger (RTLogPrintf)\n");
214	LogCom(("vmmR0InitVM: RTLogPrintf returned fine offScratch=%d\n", pR0Logger->Logger.offScratch));
215	#endif
216	Log(("Switching to per-thread logging instance %p (key=%p)\n", &pR0Logger->Logger, pVM->pSession));
217	RTLogSetDefaultInstanceThread(&pR0Logger->Logger, (uintptr_t)pVM->pSession);
218	}
219
220	/*
221	* Initialize the per VM data for GVMM and GMM.
222	*/
223	int rc = GVMMR0InitVM(pVM);
224	// if (RT_SUCCESS(rc))
225	// rc = GMMR0InitPerVMData(pVM);
226	if (RT_SUCCESS(rc))
227	{
228	/*
229	* Init HWACCM, CPUM and PGM (Darwin only).
230	*/
231	rc = HWACCMR0InitVM(pVM);
232	if (RT_SUCCESS(rc))
233	{
234	rc = CPUMR0Init(pVM); /** @todo rename to CPUMR0InitVM */
235	if (RT_SUCCESS(rc))
236	{
237	#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
238	rc = PGMR0DynMapInitVM(pVM);
239	#endif
240	if (RT_SUCCESS(rc))
241	return rc;
242
243	/* bail out */
244	}
245	HWACCMR0TermVM(pVM);
246	}
247	}
248	RTLogSetDefaultInstanceThread(NULL, 0);
249	return rc;
250	}
251
252
253	/**
254	* Terminates the R0 driver for a particular VM instance.
255	*
256	* @returns VBox status code.
257	*
258	* @param pVM The VM instance in question.
259	* @thread EMT.
260	*/
261	static int vmmR0TermVM(PVM pVM)
262	{
263	#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
264	PGMR0DynMapTermVM(pVM);
265	#endif
266	HWACCMR0TermVM(pVM);
267
268	/*
269	* Deregister the logger.
270	*/
271	RTLogSetDefaultInstanceThread(NULL, 0);
272	return VINF_SUCCESS;
273	}
274
275
276	/**
277	* Calls the ring-3 host code.
278	*
279	* @returns VBox status code of the ring-3 call.
280	* @param pVM The VM handle.
281	* @param enmOperation The operation.
282	* @param uArg The argument to the operation.
283	*/
284	VMMR0DECL(int) VMMR0CallHost(PVM pVM, VMMCALLHOST enmOperation, uint64_t uArg)
285	{
286	/** @todo profile this! */
287	pVM->vmm.s.enmCallHostOperation = enmOperation;
288	pVM->vmm.s.u64CallHostArg = uArg;
289	pVM->vmm.s.rcCallHost = VERR_INTERNAL_ERROR;
290	int rc = vmmR0CallHostLongJmp(&pVM->vmm.s.CallHostR0JmpBuf, VINF_VMM_CALL_HOST);
291	if (rc == VINF_SUCCESS)
292	rc = pVM->vmm.s.rcCallHost;
293	return rc;
294	}
295
296
297	#ifdef VBOX_WITH_STATISTICS
298	/**
299	* Record return code statistics
300	* @param pVM The VM handle.
301	* @param rc The status code.
302	*/
303	static void vmmR0RecordRC(PVM pVM, int rc)
304	{
305	/*
306	* Collect statistics.
307	*/
308	switch (rc)
309	{
310	case VINF_SUCCESS:
311	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetNormal);
312	break;
313	case VINF_EM_RAW_INTERRUPT:
314	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetInterrupt);
315	break;
316	case VINF_EM_RAW_INTERRUPT_HYPER:
317	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetInterruptHyper);
318	break;
319	case VINF_EM_RAW_GUEST_TRAP:
320	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetGuestTrap);
321	break;
322	case VINF_EM_RAW_RING_SWITCH:
323	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetRingSwitch);
324	break;
325	case VINF_EM_RAW_RING_SWITCH_INT:
326	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetRingSwitchInt);
327	break;
328	case VINF_EM_RAW_EXCEPTION_PRIVILEGED:
329	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetExceptionPrivilege);
330	break;
331	case VINF_EM_RAW_STALE_SELECTOR:
332	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetStaleSelector);
333	break;
334	case VINF_EM_RAW_IRET_TRAP:
335	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetIRETTrap);
336	break;
337	case VINF_IOM_HC_IOPORT_READ:
338	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetIORead);
339	break;
340	case VINF_IOM_HC_IOPORT_WRITE:
341	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetIOWrite);
342	break;
343	case VINF_IOM_HC_MMIO_READ:
344	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetMMIORead);
345	break;
346	case VINF_IOM_HC_MMIO_WRITE:
347	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetMMIOWrite);
348	break;
349	case VINF_IOM_HC_MMIO_READ_WRITE:
350	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetMMIOReadWrite);
351	break;
352	case VINF_PATM_HC_MMIO_PATCH_READ:
353	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetMMIOPatchRead);
354	break;
355	case VINF_PATM_HC_MMIO_PATCH_WRITE:
356	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetMMIOPatchWrite);
357	break;
358	case VINF_EM_RAW_EMULATE_INSTR:
359	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetEmulate);
360	break;
361	case VINF_PATCH_EMULATE_INSTR:
362	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetPatchEmulate);
363	break;
364	case VINF_EM_RAW_EMULATE_INSTR_LDT_FAULT:
365	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetLDTFault);
366	break;
367	case VINF_EM_RAW_EMULATE_INSTR_GDT_FAULT:
368	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetGDTFault);
369	break;
370	case VINF_EM_RAW_EMULATE_INSTR_IDT_FAULT:
371	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetIDTFault);
372	break;
373	case VINF_EM_RAW_EMULATE_INSTR_TSS_FAULT:
374	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetTSSFault);
375	break;
376	case VINF_EM_RAW_EMULATE_INSTR_PD_FAULT:
377	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetPDFault);
378	break;
379	case VINF_CSAM_PENDING_ACTION:
380	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetCSAMTask);
381	break;
382	case VINF_PGM_SYNC_CR3:
383	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetSyncCR3);
384	break;
385	case VINF_PATM_PATCH_INT3:
386	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetPatchInt3);
387	break;
388	case VINF_PATM_PATCH_TRAP_PF:
389	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetPatchPF);
390	break;
391	case VINF_PATM_PATCH_TRAP_GP:
392	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetPatchGP);
393	break;
394	case VINF_PATM_PENDING_IRQ_AFTER_IRET:
395	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetPatchIretIRQ);
396	break;
397	case VERR_REM_FLUSHED_PAGES_OVERFLOW:
398	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetPageOverflow);
399	break;
400	case VINF_EM_RESCHEDULE_REM:
401	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetRescheduleREM);
402	break;
403	case VINF_EM_RAW_TO_R3:
404	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetToR3);
405	break;
406	case VINF_EM_RAW_TIMER_PENDING:
407	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetTimerPending);
408	break;
409	case VINF_EM_RAW_INTERRUPT_PENDING:
410	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetInterruptPending);
411	break;
412	case VINF_VMM_CALL_HOST:
413	switch (pVM->vmm.s.enmCallHostOperation)
414	{
415	case VMMCALLHOST_PDM_LOCK:
416	STAM_COUNTER_INC(&pVM->vmm.s.StatRZCallPDMLock);
417	break;
418	case VMMCALLHOST_PDM_QUEUE_FLUSH:
419	STAM_COUNTER_INC(&pVM->vmm.s.StatRZCallPDMQueueFlush);
420	break;
421	case VMMCALLHOST_PGM_POOL_GROW:
422	STAM_COUNTER_INC(&pVM->vmm.s.StatRZCallPGMPoolGrow);
423	break;
424	case VMMCALLHOST_PGM_LOCK:
425	STAM_COUNTER_INC(&pVM->vmm.s.StatRZCallPGMLock);
426	break;
427	case VMMCALLHOST_PGM_MAP_CHUNK:
428	STAM_COUNTER_INC(&pVM->vmm.s.StatRZCallPGMMapChunk);
429	break;
430	case VMMCALLHOST_PGM_ALLOCATE_HANDY_PAGES:
431	STAM_COUNTER_INC(&pVM->vmm.s.StatRZCallPGMAllocHandy);
432	break;
433	#ifndef VBOX_WITH_NEW_PHYS_CODE
434	case VMMCALLHOST_PGM_RAM_GROW_RANGE:
435	STAM_COUNTER_INC(&pVM->vmm.s.StatRZCallPGMGrowRAM);
436	break;
437	#endif
438	case VMMCALLHOST_REM_REPLAY_HANDLER_NOTIFICATIONS:
439	STAM_COUNTER_INC(&pVM->vmm.s.StatRZCallRemReplay);
440	break;
441	case VMMCALLHOST_VMM_LOGGER_FLUSH:
442	STAM_COUNTER_INC(&pVM->vmm.s.StatRZCallLogFlush);
443	break;
444	case VMMCALLHOST_VM_SET_ERROR:
445	STAM_COUNTER_INC(&pVM->vmm.s.StatRZCallVMSetError);
446	break;
447	case VMMCALLHOST_VM_SET_RUNTIME_ERROR:
448	STAM_COUNTER_INC(&pVM->vmm.s.StatRZCallVMSetRuntimeError);
449	break;
450	case VMMCALLHOST_VM_R0_ASSERTION:
451	default:
452	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetCallHost);
453	break;
454	}
455	break;
456	case VINF_PATM_DUPLICATE_FUNCTION:
457	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetPATMDuplicateFn);
458	break;
459	case VINF_PGM_CHANGE_MODE:
460	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetPGMChangeMode);
461	break;
462	case VINF_EM_RAW_EMULATE_INSTR_HLT:
463	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetEmulHlt);
464	break;
465	case VINF_EM_PENDING_REQUEST:
466	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetPendingRequest);
467	break;
468	default:
469	STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetMisc);
470	break;
471	}
472	}
473	#endif /* VBOX_WITH_STATISTICS */
474
475
476	/**
477	* The Ring 0 entry point, called by the interrupt gate.
478	*
479	* @returns VBox status code.
480	* @param pVM The VM to operate on.
481	* @param enmOperation Which operation to execute.
482	* @param pvArg Argument to the operation.
483	* @remarks Assume called with interrupts disabled.
484	*/
485	VMMR0DECL(int) VMMR0EntryInt(PVM pVM, VMMR0OPERATION enmOperation, void *pvArg)
486	{
487	switch (enmOperation)
488	{
489	#ifdef VBOX_WITH_IDT_PATCHING
490	/*
491	* Switch to GC.
492	* These calls return whatever the GC returns.
493	*/
494	case VMMR0_DO_RAW_RUN:
495	{
496	/* Safety precaution as VMX disables the switcher. */
497	Assert(!pVM->vmm.s.fSwitcherDisabled);
498	if (pVM->vmm.s.fSwitcherDisabled)
499	return VERR_NOT_SUPPORTED;
500
501	STAM_COUNTER_INC(&pVM->vmm.s.StatRunRC);
502	register int rc;
503	pVM->vmm.s.iLastGZRc = rc = pVM->vmm.s.pfnHostToGuestR0(pVM);
504
505	#ifdef VBOX_WITH_STATISTICS
506	vmmR0RecordRC(pVM, rc);
507	#endif
508
509	/*
510	* We'll let TRPM change the stack frame so our return is different.
511	* Just keep in mind that after the call, things have changed!
512	*/
513	if ( rc == VINF_EM_RAW_INTERRUPT
514	\|\| rc == VINF_EM_RAW_INTERRUPT_HYPER)
515	{
516	/*
517	* Don't trust the compiler to get this right.
518	* gcc -fomit-frame-pointer screws up big time here. This works fine in 64-bit
519	* mode too because we push the arguments on the stack in the IDT patch code.
520	*/
521	# if defined(__GNUC__)
522	void pvRet = (uint8_t )__builtin_frame_address(0) + sizeof(void *);
523	# elif defined(_MSC_VER) && defined(RT_ARCH_AMD64) /** @todo check this with with VC7! */
524	void pvRet = (uint8_t )_AddressOfReturnAddress();
525	# elif defined(RT_ARCH_X86)
526	void pvRet = (uint8_t )&pVM - sizeof(pVM);
527	# else
528	# error "huh?"
529	# endif
530	if ( ((uintptr_t *)pvRet)[1] == (uintptr_t)pVM
531	&& ((uintptr_t *)pvRet)[2] == (uintptr_t)enmOperation
532	&& ((uintptr_t *)pvRet)[3] == (uintptr_t)pvArg)
533	TRPMR0SetupInterruptDispatcherFrame(pVM, pvRet);
534	else
535	{
536	# if defined(DEBUG) \|\| defined(LOG_ENABLED)
537	static bool s_fHaveWarned = false;
538	if (!s_fHaveWarned)
539	{
540	s_fHaveWarned = true;
541	RTLogPrintf("VMMR0.r0: The compiler can't find the stack frame!\n");
542	RTLogComPrintf("VMMR0.r0: The compiler can't find the stack frame!\n");
543	}
544	# endif
545	TRPMR0DispatchHostInterrupt(pVM);
546	}
547	}
548	return rc;
549	}
550
551	/*
552	* Switch to GC to execute Hypervisor function.
553	*/
554	case VMMR0_DO_CALL_HYPERVISOR:
555	{
556	/* Safety precaution as VMX disables the switcher. */
557	Assert(!pVM->vmm.s.fSwitcherDisabled);
558	if (pVM->vmm.s.fSwitcherDisabled)
559	return VERR_NOT_SUPPORTED;
560
561	RTCCUINTREG fFlags = ASMIntDisableFlags();
562	int rc = pVM->vmm.s.pfnHostToGuestR0(pVM);
563	/** @todo dispatch interrupts? */
564	ASMSetFlags(fFlags);
565	return rc;
566	}
567
568	/*
569	* For profiling.
570	*/
571	case VMMR0_DO_NOP:
572	return VINF_SUCCESS;
573	#endif /* VBOX_WITH_IDT_PATCHING */
574
575	default:
576	/*
577	* We're returning VERR_NOT_SUPPORT here so we've got something else
578	* than -1 which the interrupt gate glue code might return.
579	*/
580	Log(("operation %#x is not supported\n", enmOperation));
581	return VERR_NOT_SUPPORTED;
582	}
583	}
584
585
586	/**
587	* The Ring 0 entry point, called by the fast-ioctl path.
588	*
589	* @param pVM The VM to operate on.
590	* The return code is stored in pVM->vmm.s.iLastGZRc.
591	* @param idCpu VMCPU id.
592	* @param enmOperation Which operation to execute.
593	* @remarks Assume called with interrupts _enabled_.
594	*/
595	VMMR0DECL(void) VMMR0EntryFast(PVM pVM, unsigned idCpu, VMMR0OPERATION enmOperation)
596	{
597	if (RT_UNLIKELY(idCpu >= pVM->cCPUs))
598	{
599	pVM->vmm.s.iLastGZRc = VERR_INVALID_PARAMETER;
600	return;
601	}
602
603	switch (enmOperation)
604	{
605	/*
606	* Switch to GC and run guest raw mode code.
607	* Disable interrupts before doing the world switch.
608	*/
609	case VMMR0_DO_RAW_RUN:
610	{
611	/* Safety precaution as hwaccm disables the switcher. */
612	if (RT_LIKELY(!pVM->vmm.s.fSwitcherDisabled))
613	{
614	RTCCUINTREG uFlags = ASMIntDisableFlags();
615
616	TMNotifyStartOfExecution(pVM);
617	int rc = pVM->vmm.s.pfnHostToGuestR0(pVM);
618	pVM->vmm.s.iLastGZRc = rc;
619	TMNotifyEndOfExecution(pVM);
620
621	if ( rc == VINF_EM_RAW_INTERRUPT
622	\|\| rc == VINF_EM_RAW_INTERRUPT_HYPER)
623	TRPMR0DispatchHostInterrupt(pVM);
624
625	ASMSetFlags(uFlags);
626
627	#ifdef VBOX_WITH_STATISTICS
628	STAM_COUNTER_INC(&pVM->vmm.s.StatRunRC);
629	vmmR0RecordRC(pVM, rc);
630	#endif
631	}
632	else
633	{
634	Assert(!pVM->vmm.s.fSwitcherDisabled);
635	pVM->vmm.s.iLastGZRc = VERR_NOT_SUPPORTED;
636	}
637	break;
638	}
639
640	/*
641	* Run guest code using the available hardware acceleration technology.
642	*
643	* Disable interrupts before we do anything interesting. On Windows we avoid
644	* this by having the support driver raise the IRQL before calling us, this way
645	* we hope to get away with page faults and later calling into the kernel.
646	*/
647	case VMMR0_DO_HWACC_RUN:
648	{
649	int rc;
650	PVMCPU pVCpu = &pVM->aCpus[idCpu];
651
652	STAM_COUNTER_INC(&pVM->vmm.s.StatRunRC);
653
654	#ifndef RT_OS_WINDOWS /** @todo check other hosts */
655	RTCCUINTREG uFlags = ASMIntDisableFlags();
656	#endif
657	if (!HWACCMR0SuspendPending())
658	{
659	rc = HWACCMR0Enter(pVM, pVCpu);
660	if (RT_SUCCESS(rc))
661	{
662	rc = vmmR0CallHostSetJmp(&pVM->vmm.s.CallHostR0JmpBuf, HWACCMR0RunGuestCode, pVM, pVCpu); /* this may resume code. */
663	int rc2 = HWACCMR0Leave(pVM, pVCpu);
664	AssertRC(rc2);
665	}
666	}
667	else
668	{
669	/* System is about to go into suspend mode; go back to ring 3. */
670	rc = VINF_EM_RAW_INTERRUPT;
671	}
672	pVM->vmm.s.iLastGZRc = rc;
673	#ifndef RT_OS_WINDOWS /** @todo check other hosts */
674	ASMSetFlags(uFlags);
675	#endif
676
677	#ifdef VBOX_WITH_STATISTICS
678	vmmR0RecordRC(pVM, rc);
679	#endif
680	/* No special action required for external interrupts, just return. */
681	break;
682	}
683
684	/*
685	* For profiling.
686	*/
687	case VMMR0_DO_NOP:
688	pVM->vmm.s.iLastGZRc = VINF_SUCCESS;
689	break;
690
691	/*
692	* Impossible.
693	*/
694	default:
695	AssertMsgFailed(("%#x\n", enmOperation));
696	pVM->vmm.s.iLastGZRc = VERR_NOT_SUPPORTED;
697	break;
698	}
699	}
700
701
702	/**
703	* Validates a session or VM session argument.
704	*
705	* @returns true / false accordingly.
706	* @param pVM The VM argument.
707	* @param pSession The session argument.
708	*/
709	DECLINLINE(bool) vmmR0IsValidSession(PVM pVM, PSUPDRVSESSION pClaimedSession, PSUPDRVSESSION pSession)
710	{
711	/* This must be set! */
712	if (!pSession)
713	return false;
714
715	/* Only one out of the two. */
716	if (pVM && pClaimedSession)
717	return false;
718	if (pVM)
719	pClaimedSession = pVM->pSession;
720	return pClaimedSession == pSession;
721	}
722
723
724	/**
725	* VMMR0EntryEx worker function, either called directly or when ever possible
726	* called thru a longjmp so we can exit safely on failure.
727	*
728	* @returns VBox status code.
729	* @param pVM The VM to operate on.
730	* @param enmOperation Which operation to execute.
731	* @param pReqHdr This points to a SUPVMMR0REQHDR packet. Optional.
732	* The support driver validates this if it's present.
733	* @param u64Arg Some simple constant argument.
734	* @param pSession The session of the caller.
735	* @remarks Assume called with interrupts _enabled_.
736	*/
737	static int vmmR0EntryExWorker(PVM pVM, VMMR0OPERATION enmOperation, PSUPVMMR0REQHDR pReqHdr, uint64_t u64Arg, PSUPDRVSESSION pSession)
738	{
739	/*
740	* Common VM pointer validation.
741	*/
742	if (pVM)
743	{
744	if (RT_UNLIKELY( !VALID_PTR(pVM)
745	\|\| ((uintptr_t)pVM & PAGE_OFFSET_MASK)))
746	{
747	SUPR0Printf("vmmR0EntryExWorker: Invalid pVM=%p! (op=%d)\n", pVM, enmOperation);
748	return VERR_INVALID_POINTER;
749	}
750	if (RT_UNLIKELY( pVM->enmVMState < VMSTATE_CREATING
751	\|\| pVM->enmVMState > VMSTATE_TERMINATED
752	\|\| pVM->pVMR0 != pVM))
753	{
754	SUPR0Printf("vmmR0EntryExWorker: Invalid pVM=%p:{enmVMState=%d, .pVMR0=%p}! (op=%d)\n",
755	pVM, pVM->enmVMState, pVM->pVMR0, enmOperation);
756	return VERR_INVALID_POINTER;
757	}
758	}
759
760	switch (enmOperation)
761	{
762	/*
763	* GVM requests
764	*/
765	case VMMR0_DO_GVMM_CREATE_VM:
766	if (pVM \|\| u64Arg)
767	return VERR_INVALID_PARAMETER;
768	return GVMMR0CreateVMReq((PGVMMCREATEVMREQ)pReqHdr);
769
770	case VMMR0_DO_GVMM_DESTROY_VM:
771	if (pReqHdr \|\| u64Arg)
772	return VERR_INVALID_PARAMETER;
773	return GVMMR0DestroyVM(pVM);
774
775	case VMMR0_DO_GVMM_SCHED_HALT:
776	if (pReqHdr)
777	return VERR_INVALID_PARAMETER;
778	return GVMMR0SchedHalt(pVM, u64Arg);
779
780	case VMMR0_DO_GVMM_SCHED_WAKE_UP:
781	if (pReqHdr \|\| u64Arg)
782	return VERR_INVALID_PARAMETER;
783	return GVMMR0SchedWakeUp(pVM);
784
785	case VMMR0_DO_GVMM_SCHED_POLL:
786	if (pReqHdr \|\| u64Arg > 1)
787	return VERR_INVALID_PARAMETER;
788	return GVMMR0SchedPoll(pVM, !!u64Arg);
789
790	case VMMR0_DO_GVMM_QUERY_STATISTICS:
791	if (u64Arg)
792	return VERR_INVALID_PARAMETER;
793	return GVMMR0QueryStatisticsReq(pVM, (PGVMMQUERYSTATISTICSSREQ)pReqHdr);
794
795	case VMMR0_DO_GVMM_RESET_STATISTICS:
796	if (u64Arg)
797	return VERR_INVALID_PARAMETER;
798	return GVMMR0ResetStatisticsReq(pVM, (PGVMMRESETSTATISTICSSREQ)pReqHdr);
799
800	/*
801	* Initialize the R0 part of a VM instance.
802	*/
803	case VMMR0_DO_VMMR0_INIT:
804	return vmmR0InitVM(pVM, (uint32_t)u64Arg);
805
806	/*
807	* Terminate the R0 part of a VM instance.
808	*/
809	case VMMR0_DO_VMMR0_TERM:
810	return vmmR0TermVM(pVM);
811
812	/*
813	* Attempt to enable hwacc mode and check the current setting.
814	*
815	*/
816	case VMMR0_DO_HWACC_ENABLE:
817	return HWACCMR0EnableAllCpus(pVM, (HWACCMSTATE)u64Arg);
818
819	/*
820	* Setup the hardware accelerated raw-mode session.
821	*/
822	case VMMR0_DO_HWACC_SETUP_VM:
823	{
824	RTCCUINTREG fFlags = ASMIntDisableFlags();
825	int rc = HWACCMR0SetupVM(pVM);
826	ASMSetFlags(fFlags);
827	return rc;
828	}
829
830	/*
831	* Switch to GC to execute Hypervisor function.
832	*/
833	case VMMR0_DO_CALL_HYPERVISOR:
834	{
835	/* Safety precaution as HWACCM can disable the switcher. */
836	Assert(!pVM->vmm.s.fSwitcherDisabled);
837	if (RT_UNLIKELY(pVM->vmm.s.fSwitcherDisabled))
838	return VERR_NOT_SUPPORTED;
839
840	RTCCUINTREG fFlags = ASMIntDisableFlags();
841	int rc = pVM->vmm.s.pfnHostToGuestR0(pVM);
842	/** @todo dispatch interrupts? */
843	ASMSetFlags(fFlags);
844	return rc;
845	}
846
847	/*
848	* PGM wrappers.
849	*/
850	case VMMR0_DO_PGM_ALLOCATE_HANDY_PAGES:
851	return PGMR0PhysAllocateHandyPages(pVM);
852
853	/*
854	* GMM wrappers.
855	*/
856	case VMMR0_DO_GMM_INITIAL_RESERVATION:
857	if (u64Arg)
858	return VERR_INVALID_PARAMETER;
859	return GMMR0InitialReservationReq(pVM, (PGMMINITIALRESERVATIONREQ)pReqHdr);
860	case VMMR0_DO_GMM_UPDATE_RESERVATION:
861	if (u64Arg)
862	return VERR_INVALID_PARAMETER;
863	return GMMR0UpdateReservationReq(pVM, (PGMMUPDATERESERVATIONREQ)pReqHdr);
864
865	case VMMR0_DO_GMM_ALLOCATE_PAGES:
866	if (u64Arg)
867	return VERR_INVALID_PARAMETER;
868	return GMMR0AllocatePagesReq(pVM, (PGMMALLOCATEPAGESREQ)pReqHdr);
869	case VMMR0_DO_GMM_FREE_PAGES:
870	if (u64Arg)
871	return VERR_INVALID_PARAMETER;
872	return GMMR0FreePagesReq(pVM, (PGMMFREEPAGESREQ)pReqHdr);
873	case VMMR0_DO_GMM_BALLOONED_PAGES:
874	if (u64Arg)
875	return VERR_INVALID_PARAMETER;
876	return GMMR0BalloonedPagesReq(pVM, (PGMMBALLOONEDPAGESREQ)pReqHdr);
877	case VMMR0_DO_GMM_DEFLATED_BALLOON:
878	if (pReqHdr)
879	return VERR_INVALID_PARAMETER;
880	return GMMR0DeflatedBalloon(pVM, (uint32_t)u64Arg);
881
882	case VMMR0_DO_GMM_MAP_UNMAP_CHUNK:
883	if (u64Arg)
884	return VERR_INVALID_PARAMETER;
885	return GMMR0MapUnmapChunkReq(pVM, (PGMMMAPUNMAPCHUNKREQ)pReqHdr);
886	case VMMR0_DO_GMM_SEED_CHUNK:
887	if (pReqHdr)
888	return VERR_INVALID_PARAMETER;
889	return GMMR0SeedChunk(pVM, (RTR3PTR)u64Arg);
890
891	/*
892	* A quick GCFGM mock-up.
893	*/
894	/** @todo GCFGM with proper access control, ring-3 management interface and all that. */
895	case VMMR0_DO_GCFGM_SET_VALUE:
896	case VMMR0_DO_GCFGM_QUERY_VALUE:
897	{
898	if (pVM \|\| !pReqHdr \|\| u64Arg)
899	return VERR_INVALID_PARAMETER;
900	PGCFGMVALUEREQ pReq = (PGCFGMVALUEREQ)pReqHdr;
901	if (pReq->Hdr.cbReq != sizeof(*pReq))
902	return VERR_INVALID_PARAMETER;
903	int rc;
904	if (enmOperation == VMMR0_DO_GCFGM_SET_VALUE)
905	{
906	rc = GVMMR0SetConfig(pReq->pSession, &pReq->szName[0], pReq->u64Value);
907	//if (rc == VERR_CFGM_VALUE_NOT_FOUND)
908	// rc = GMMR0SetConfig(pReq->pSession, &pReq->szName[0], pReq->u64Value);
909	}
910	else
911	{
912	rc = GVMMR0QueryConfig(pReq->pSession, &pReq->szName[0], &pReq->u64Value);
913	//if (rc == VERR_CFGM_VALUE_NOT_FOUND)
914	// rc = GMMR0QueryConfig(pReq->pSession, &pReq->szName[0], &pReq->u64Value);
915	}
916	return rc;
917	}
918
919
920	/*
921	* Requests to the internal networking service.
922	*/
923	case VMMR0_DO_INTNET_OPEN:
924	{
925	PINTNETOPENREQ pReq = (PINTNETOPENREQ)pReqHdr;
926	if (u64Arg \|\| !pReq \|\| !vmmR0IsValidSession(pVM, pReq->pSession, pSession))
927	return VERR_INVALID_PARAMETER;
928	if (!g_pIntNet)
929	return VERR_NOT_SUPPORTED;
930	return INTNETR0OpenReq(g_pIntNet, pSession, pReq);
931	}
932
933	case VMMR0_DO_INTNET_IF_CLOSE:
934	if (u64Arg \|\| !pReqHdr \|\| !vmmR0IsValidSession(pVM, ((PINTNETIFCLOSEREQ)pReqHdr)->pSession, pSession))
935	return VERR_INVALID_PARAMETER;
936	if (!g_pIntNet)
937	return VERR_NOT_SUPPORTED;
938	return INTNETR0IfCloseReq(g_pIntNet, pSession, (PINTNETIFCLOSEREQ)pReqHdr);
939
940	case VMMR0_DO_INTNET_IF_GET_RING3_BUFFER:
941	if (u64Arg \|\| !pReqHdr \|\| !vmmR0IsValidSession(pVM, ((PINTNETIFGETRING3BUFFERREQ)pReqHdr)->pSession, pSession))
942	return VERR_INVALID_PARAMETER;
943	if (!g_pIntNet)
944	return VERR_NOT_SUPPORTED;
945	return INTNETR0IfGetRing3BufferReq(g_pIntNet, pSession, (PINTNETIFGETRING3BUFFERREQ)pReqHdr);
946
947	case VMMR0_DO_INTNET_IF_SET_PROMISCUOUS_MODE:
948	if (u64Arg \|\| !pReqHdr \|\| !vmmR0IsValidSession(pVM, ((PINTNETIFSETPROMISCUOUSMODEREQ)pReqHdr)->pSession, pSession))
949	return VERR_INVALID_PARAMETER;
950	if (!g_pIntNet)
951	return VERR_NOT_SUPPORTED;
952	return INTNETR0IfSetPromiscuousModeReq(g_pIntNet, pSession, (PINTNETIFSETPROMISCUOUSMODEREQ)pReqHdr);
953
954	case VMMR0_DO_INTNET_IF_SET_MAC_ADDRESS:
955	if (u64Arg \|\| !pReqHdr \|\| !vmmR0IsValidSession(pVM, ((PINTNETIFSETMACADDRESSREQ)pReqHdr)->pSession, pSession))
956	return VERR_INVALID_PARAMETER;
957	if (!g_pIntNet)
958	return VERR_NOT_SUPPORTED;
959	return INTNETR0IfSetMacAddressReq(g_pIntNet, pSession, (PINTNETIFSETMACADDRESSREQ)pReqHdr);
960
961	case VMMR0_DO_INTNET_IF_SET_ACTIVE:
962	if (u64Arg \|\| !pReqHdr \|\| !vmmR0IsValidSession(pVM, ((PINTNETIFSETACTIVEREQ)pReqHdr)->pSession, pSession))
963	return VERR_INVALID_PARAMETER;
964	if (!g_pIntNet)
965	return VERR_NOT_SUPPORTED;
966	return INTNETR0IfSetActiveReq(g_pIntNet, pSession, (PINTNETIFSETACTIVEREQ)pReqHdr);
967
968	case VMMR0_DO_INTNET_IF_SEND:
969	if (u64Arg \|\| !pReqHdr \|\| !vmmR0IsValidSession(pVM, ((PINTNETIFSENDREQ)pReqHdr)->pSession, pSession))
970	return VERR_INVALID_PARAMETER;
971	if (!g_pIntNet)
972	return VERR_NOT_SUPPORTED;
973	return INTNETR0IfSendReq(g_pIntNet, pSession, (PINTNETIFSENDREQ)pReqHdr);
974
975	case VMMR0_DO_INTNET_IF_WAIT:
976	if (u64Arg \|\| !pReqHdr \|\| !vmmR0IsValidSession(pVM, ((PINTNETIFWAITREQ)pReqHdr)->pSession, pSession))
977	return VERR_INVALID_PARAMETER;
978	if (!g_pIntNet)
979	return VERR_NOT_SUPPORTED;
980	return INTNETR0IfWaitReq(g_pIntNet, pSession, (PINTNETIFWAITREQ)pReqHdr);
981
982	/*
983	* For profiling.
984	*/
985	case VMMR0_DO_NOP:
986	case VMMR0_DO_SLOW_NOP:
987	return VINF_SUCCESS;
988
989	/*
990	* For testing Ring-0 APIs invoked in this environment.
991	*/
992	case VMMR0_DO_TESTS:
993	/** @todo make new test */
994	return VINF_SUCCESS;
995
996
997	default:
998	/*
999	* We're returning VERR_NOT_SUPPORT here so we've got something else
1000	* than -1 which the interrupt gate glue code might return.
1001	*/
1002	Log(("operation %#x is not supported\n", enmOperation));
1003	return VERR_NOT_SUPPORTED;
1004	}
1005	}
1006
1007
1008	/**
1009	* Argument for vmmR0EntryExWrapper containing the argument s ofr VMMR0EntryEx.
1010	*/
1011	typedef struct VMMR0ENTRYEXARGS
1012	{
1013	PVM pVM;
1014	VMMR0OPERATION enmOperation;
1015	PSUPVMMR0REQHDR pReq;
1016	uint64_t u64Arg;
1017	PSUPDRVSESSION pSession;
1018	} VMMR0ENTRYEXARGS;
1019	/** Pointer to a vmmR0EntryExWrapper argument package. */
1020	typedef VMMR0ENTRYEXARGS *PVMMR0ENTRYEXARGS;
1021
1022	/**
1023	* This is just a longjmp wrapper function for VMMR0EntryEx calls.
1024	*
1025	* @returns VBox status code.
1026	* @param pvArgs The argument package
1027	*/
1028	static int vmmR0EntryExWrapper(void *pvArgs)
1029	{
1030	return vmmR0EntryExWorker(((PVMMR0ENTRYEXARGS)pvArgs)->pVM,
1031	((PVMMR0ENTRYEXARGS)pvArgs)->enmOperation,
1032	((PVMMR0ENTRYEXARGS)pvArgs)->pReq,
1033	((PVMMR0ENTRYEXARGS)pvArgs)->u64Arg,
1034	((PVMMR0ENTRYEXARGS)pvArgs)->pSession);
1035	}
1036
1037
1038	/**
1039	* The Ring 0 entry point, called by the support library (SUP).
1040	*
1041	* @returns VBox status code.
1042	* @param pVM The VM to operate on.
1043	* @param enmOperation Which operation to execute.
1044	* @param pReq This points to a SUPVMMR0REQHDR packet. Optional.
1045	* @param u64Arg Some simple constant argument.
1046	* @param pSession The session of the caller.
1047	* @remarks Assume called with interrupts _enabled_.
1048	*/
1049	VMMR0DECL(int) VMMR0EntryEx(PVM pVM, VMMR0OPERATION enmOperation, PSUPVMMR0REQHDR pReq, uint64_t u64Arg, PSUPDRVSESSION pSession)
1050	{
1051	/*
1052	* Requests that should only happen on the EMT thread will be
1053	* wrapped in a setjmp so we can assert without causing trouble.
1054	*/
1055	if ( VALID_PTR(pVM)
1056	&& pVM->pVMR0)
1057	{
1058	switch (enmOperation)
1059	{
1060	case VMMR0_DO_VMMR0_INIT:
1061	case VMMR0_DO_VMMR0_TERM:
1062	case VMMR0_DO_GMM_INITIAL_RESERVATION:
1063	case VMMR0_DO_GMM_UPDATE_RESERVATION:
1064	case VMMR0_DO_GMM_ALLOCATE_PAGES:
1065	case VMMR0_DO_GMM_FREE_PAGES:
1066	case VMMR0_DO_GMM_BALLOONED_PAGES:
1067	case VMMR0_DO_GMM_DEFLATED_BALLOON:
1068	case VMMR0_DO_GMM_MAP_UNMAP_CHUNK:
1069	case VMMR0_DO_GMM_SEED_CHUNK:
1070	{
1071	/** @todo validate this EMT claim... GVM knows. */
1072	VMMR0ENTRYEXARGS Args;
1073	Args.pVM = pVM;
1074	Args.enmOperation = enmOperation;
1075	Args.pReq = pReq;
1076	Args.u64Arg = u64Arg;
1077	Args.pSession = pSession;
1078	return vmmR0CallHostSetJmpEx(&pVM->vmm.s.CallHostR0JmpBuf, vmmR0EntryExWrapper, &Args);
1079	}
1080
1081	default:
1082	break;
1083	}
1084	}
1085	return vmmR0EntryExWorker(pVM, enmOperation, pReq, u64Arg, pSession);
1086	}
1087
1088
1089	/**
1090	* Internal R0 logger worker: Flush logger.
1091	*
1092	* @param pLogger The logger instance to flush.
1093	* @remark This function must be exported!
1094	*/
1095	VMMR0DECL(void) vmmR0LoggerFlush(PRTLOGGER pLogger)
1096	{
1097	/*
1098	* Convert the pLogger into a VM handle and 'call' back to Ring-3.
1099	* (This is a bit paranoid code.)
1100	*/
1101	PVMMR0LOGGER pR0Logger = (PVMMR0LOGGER)((uintptr_t)pLogger - RT_OFFSETOF(VMMR0LOGGER, Logger));
1102	if ( !VALID_PTR(pR0Logger)
1103	\|\| !VALID_PTR(pR0Logger + 1)
1104	\|\| !VALID_PTR(pLogger)
1105	\|\| pLogger->u32Magic != RTLOGGER_MAGIC)
1106	{
1107	#ifdef DEBUG
1108	SUPR0Printf("vmmR0LoggerFlush: pLogger=%p!\n", pLogger);
1109	#endif
1110	return;
1111	}
1112
1113	PVM pVM = pR0Logger->pVM;
1114	if ( !VALID_PTR(pVM)
1115	\|\| pVM->pVMR0 != pVM)
1116	{
1117	#ifdef DEBUG
1118	SUPR0Printf("vmmR0LoggerFlush: pVM=%p! pVMR0=%p! pLogger=%p\n", pVM, pVM->pVMR0, pLogger);
1119	#endif
1120	return;
1121	}
1122
1123	/*
1124	* Check that the jump buffer is armed.
1125	*/
1126	#ifdef RT_ARCH_X86
1127	if (!pVM->vmm.s.CallHostR0JmpBuf.eip)
1128	#else
1129	if (!pVM->vmm.s.CallHostR0JmpBuf.rip)
1130	#endif
1131	{
1132	#ifdef DEBUG
1133	SUPR0Printf("vmmR0LoggerFlush: Jump buffer isn't armed!\n");
1134	#endif
1135	pLogger->offScratch = 0;
1136	return;
1137	}
1138	VMMR0CallHost(pVM, VMMCALLHOST_VMM_LOGGER_FLUSH, 0);
1139	}
1140
1141
1142	/**
1143	* Jump back to ring-3 if we're the EMT and the longjmp is armed.
1144	*
1145	* @returns true if the breakpoint should be hit, false if it should be ignored.
1146	*/
1147	DECLEXPORT(bool) RTCALL RTAssertShouldPanic(void)
1148	{
1149	PVM pVM = GVMMR0GetVMByEMT(NIL_RTNATIVETHREAD);
1150	if (pVM)
1151	{
1152	#ifdef RT_ARCH_X86
1153	if (pVM->vmm.s.CallHostR0JmpBuf.eip)
1154	#else
1155	if (pVM->vmm.s.CallHostR0JmpBuf.rip)
1156	#endif
1157	{
1158	int rc = VMMR0CallHost(pVM, VMMCALLHOST_VM_R0_ASSERTION, 0);
1159	return RT_FAILURE_NP(rc);
1160	}
1161	}
1162	#ifdef RT_OS_LINUX
1163	return true;
1164	#else
1165	return false;
1166	#endif
1167	}
1168
1169
1170	/**
1171	* Override this so we can push it up to ring-3.
1172	*
1173	* @param pszExpr Expression. Can be NULL.
1174	* @param uLine Location line number.
1175	* @param pszFile Location file name.
1176	* @param pszFunction Location function name.
1177	*/
1178	DECLEXPORT(void) RTCALL AssertMsg1(const char pszExpr, unsigned uLine, const char pszFile, const char *pszFunction)
1179	{
1180	#ifndef DEBUG_sandervl
1181	SUPR0Printf("\n!!R0-Assertion Failed!!\n"
1182	"Expression: %s\n"
1183	"Location : %s(%d) %s\n",
1184	pszExpr, pszFile, uLine, pszFunction);
1185	#endif
1186	LogAlways(("\n!!R0-Assertion Failed!!\n"
1187	"Expression: %s\n"
1188	"Location : %s(%d) %s\n",
1189	pszExpr, pszFile, uLine, pszFunction));
1190
1191	PVM pVM = GVMMR0GetVMByEMT(NIL_RTNATIVETHREAD);
1192	if (pVM)
1193	RTStrPrintf(pVM->vmm.s.szRing0AssertMsg1, sizeof(pVM->vmm.s.szRing0AssertMsg1),
1194	"\n!!R0-Assertion Failed!!\n"
1195	"Expression: %s\n"
1196	"Location : %s(%d) %s\n",
1197	pszExpr, pszFile, uLine, pszFunction);
1198	}
1199
1200
1201	/**
1202	* Callback for RTLogFormatV which writes to the ring-3 log port.
1203	* See PFNLOGOUTPUT() for details.
1204	*/
1205	static DECLCALLBACK(size_t) rtLogOutput(void pv, const char pachChars, size_t cbChars)
1206	{
1207	for (size_t i = 0; i < cbChars; i++)
1208	{
1209	#ifndef DEBUG_sandervl
1210	SUPR0Printf("%c", pachChars[i]);
1211	#endif
1212	LogAlways(("%c", pachChars[i]));
1213	}
1214
1215	return cbChars;
1216	}
1217
1218
1219	DECLEXPORT(void) RTCALL AssertMsg2(const char *pszFormat, ...)
1220	{
1221	PRTLOGGER pLog = RTLogDefaultInstance(); /** @todo we want this for release as well! */
1222	if (pLog)
1223	{
1224	va_list va;
1225	va_start(va, pszFormat);
1226	RTLogFormatV(rtLogOutput, pLog, pszFormat, va);
1227	va_end(va);
1228
1229	PVM pVM = GVMMR0GetVMByEMT(NIL_RTNATIVETHREAD);
1230	if (pVM)
1231	{
1232	va_start(va, pszFormat);
1233	RTStrPrintfV(pVM->vmm.s.szRing0AssertMsg2, sizeof(pVM->vmm.s.szRing0AssertMsg2), pszFormat, va);
1234	va_end(va);
1235	}
1236	}
1237	}
1238

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source: vbox/trunk/src/VBox/VMM/VMMR0/VMMR0.cpp@ 14499

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