VMMR0.cpp@ 2756

Last change on this file since 2756 was 2730, checked in by vboxsync, 18 years ago
Temporarily disabled ring 0 to vbox log hack on Vista 64.
Property svn:eol-style set to `native` Property svn:keywords set to `Id`
File size: 25.3 KB

Line
1	/* $Id: VMMR0.cpp 2730 2007-05-21 12:57:46Z vboxsync $ */
2	/** @file
3	* VMM - Host Context Ring 0.
4	*/
5
6	/*
7	* Copyright (C) 2006 InnoTek Systemberatung GmbH
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 as published by the Free Software Foundation,
13	* in version 2 as it comes in the "COPYING" file of the VirtualBox OSE
14	* distribution. VirtualBox OSE is distributed in the hope that it will
15	* be useful, but WITHOUT ANY WARRANTY of any kind.
16	*
17	* If you received this file as part of a commercial VirtualBox
18	* distribution, then only the terms of your commercial VirtualBox
19	* license agreement apply instead of the previous paragraph.
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/intnet.h>
36	#include <VBox/hwaccm.h>
37
38	#include <VBox/err.h>
39	#include <VBox/version.h>
40	#include <VBox/log.h>
41	#include <iprt/assert.h>
42	#include <iprt/stdarg.h>
43
44	#if defined(_MSC_VER) && defined(__AMD64__) /** @todo check this with with VC7! */
45	# pragma intrinsic(_AddressOfReturnAddress)
46	#endif
47
48
49	/*******************************************************************************
50	* Internal Functions *
51	*******************************************************************************/
52	static int VMMR0Init(PVM pVM, unsigned uVersion);
53	static int VMMR0Term(PVM pVM);
54	__BEGIN_DECLS
55	VMMR0DECL(int) ModuleInit(void);
56	VMMR0DECL(void) ModuleTerm(void);
57	__END_DECLS
58
59
60	#ifndef __AMD64__ /* causes crashes in Vista here; disabling for now */
61	#ifdef DEBUG
62	#define DEBUG_NO_RING0_ASSERTIONS
63	#ifdef DEBUG_NO_RING0_ASSERTIONS
64	static PVM g_pVMAssert = 0;
65	#endif
66	#endif
67	#endif
68
69	/*******************************************************************************
70	* Global Variables *
71	*******************************************************************************/
72	#ifdef VBOX_WITH_INTERNAL_NETWORKING
73	/** Pointer to the internal networking service instance. */
74	PINTNET g_pIntNet = 0;
75	#endif
76
77
78	/**
79	* Initialize the module.
80	* This is called when we're first loaded.
81	*
82	* @returns 0 on success.
83	* @returns VBox status on failure.
84	*/
85	VMMR0DECL(int) ModuleInit(void)
86	{
87	#ifdef VBOX_WITH_INTERNAL_NETWORKING
88	LogFlow(("ModuleInit: g_pIntNet=%p\n", g_pIntNet));
89	g_pIntNet = NULL;
90	LogFlow(("ModuleInit: g_pIntNet=%p should be NULL now...\n", g_pIntNet));
91	int rc = INTNETR0Create(&g_pIntNet);
92	if (VBOX_SUCCESS(rc))
93	{
94	LogFlow(("ModuleInit: returns success. g_pIntNet=%p\n", g_pIntNet));
95	return 0;
96	}
97	g_pIntNet = NULL;
98	LogFlow(("ModuleTerm: returns %Vrc\n", rc));
99	return rc;
100	#else
101	return 0;
102	#endif
103	}
104
105
106	/**
107	* Terminate the module.
108	* This is called when we're finally unloaded.
109	*/
110	VMMR0DECL(void) ModuleTerm(void)
111	{
112	#ifdef VBOX_WITH_INTERNAL_NETWORKING
113	LogFlow(("ModuleTerm:\n"));
114	if (g_pIntNet)
115	{
116	INTNETR0Destroy(g_pIntNet);
117	g_pIntNet = NULL;
118	}
119	LogFlow(("ModuleTerm: returns\n"));
120	#endif
121	}
122
123
124	/**
125	* Initaties the R0 driver for a particular VM instance.
126	*
127	* @returns VBox status code.
128	*
129	* @param pVM The VM instance in question.
130	* @param uVersion The minimum module version required.
131	*/
132	static int VMMR0Init(PVM pVM, unsigned uVersion)
133	{
134	/*
135	* Check if compatible version.
136	*/
137	if ( uVersion != VBOX_VERSION
138	&& ( VBOX_GET_VERSION_MAJOR(uVersion) != VBOX_VERSION_MAJOR
139	\|\| VBOX_GET_VERSION_MINOR(uVersion) < VBOX_VERSION_MINOR))
140	return VERR_VERSION_MISMATCH;
141	if ( !VALID_PTR(pVM)
142	\|\| pVM->pVMR0 != pVM)
143	return VERR_INVALID_PARAMETER;
144
145	/*
146	* Register the EMT R0 logger instance.
147	*/
148	PVMMR0LOGGER pR0Logger = pVM->vmm.s.pR0Logger;
149	if (pR0Logger)
150	{
151	#if 0 /* testing of the logger. */
152	LogCom(("VMMR0Init: before %p\n", RTLogDefaultInstance()));
153	LogCom(("VMMR0Init: pfnFlush=%p actual=%p\n", pR0Logger->Logger.pfnFlush, vmmR0LoggerFlush));
154	LogCom(("VMMR0Init: pfnLogger=%p actual=%p\n", pR0Logger->Logger.pfnLogger, vmmR0LoggerWrapper));
155	LogCom(("VMMR0Init: offScratch=%d fFlags=%#x fDestFlags=%#x\n", pR0Logger->Logger.offScratch, pR0Logger->Logger.fFlags, pR0Logger->Logger.fDestFlags));
156
157	RTLogSetDefaultInstanceThread(&pR0Logger->Logger, (uintptr_t)pVM->pSession);
158	LogCom(("VMMR0Init: after %p reg\n", RTLogDefaultInstance()));
159	RTLogSetDefaultInstanceThread(NULL, 0);
160	LogCom(("VMMR0Init: after %p dereg\n", RTLogDefaultInstance()));
161
162	pR0Logger->Logger.pfnLogger("hello ring-0 logger\n");
163	LogCom(("VMMR0Init: returned succesfully from direct logger call.\n"));
164	pR0Logger->Logger.pfnFlush(&pR0Logger->Logger);
165	LogCom(("VMMR0Init: returned succesfully from direct flush call.\n"));
166
167	RTLogSetDefaultInstanceThread(&pR0Logger->Logger, (uintptr_t)pVM->pSession);
168	LogCom(("VMMR0Init: after %p reg2\n", RTLogDefaultInstance()));
169	pR0Logger->Logger.pfnLogger("hello ring-0 logger\n");
170	LogCom(("VMMR0Init: returned succesfully from direct logger call (2). offScratch=%d\n", pR0Logger->Logger.offScratch));
171	RTLogSetDefaultInstanceThread(NULL, 0);
172	LogCom(("VMMR0Init: after %p dereg2\n", RTLogDefaultInstance()));
173
174	RTLogLoggerEx(&pR0Logger->Logger, 0, ~0U, "hello ring-0 logger (RTLogLoggerEx)\n");
175	LogCom(("VMMR0Init: RTLogLoggerEx returned fine offScratch=%d\n", pR0Logger->Logger.offScratch));
176	#endif
177	RTLogSetDefaultInstanceThread(&pR0Logger->Logger, (uintptr_t)pVM->pSession);
178	}
179
180
181	/*
182	* Init VMXM.
183	*/
184	HWACCMR0Init(pVM);
185
186	/*
187	* Init CPUM.
188	*/
189	int rc = CPUMR0Init(pVM);
190
191	if (RT_FAILURE(rc))
192	RTLogSetDefaultInstanceThread(NULL, 0);
193	return rc;
194	}
195
196
197	/**
198	* Terminates the R0 driver for a particular VM instance.
199	*
200	* @returns VBox status code.
201	*
202	* @param pVM The VM instance in question.
203	*/
204	static int VMMR0Term(PVM pVM)
205	{
206	/*
207	* Deregister the logger.
208	*/
209	RTLogSetDefaultInstanceThread(NULL, 0);
210	return VINF_SUCCESS;
211	}
212
213
214	/**
215	* Calls the ring-3 host code.
216	*
217	* @returns VBox status code of the ring-3 call.
218	* @param pVM The VM handle.
219	* @param enmOperation The operation.
220	* @param uArg The argument to the operation.
221	*/
222	VMMR0DECL(int) VMMR0CallHost(PVM pVM, VMMCALLHOST enmOperation, uint64_t uArg)
223	{
224	/** @todo profile this! */
225	pVM->vmm.s.enmCallHostOperation = enmOperation;
226	pVM->vmm.s.u64CallHostArg = uArg;
227	pVM->vmm.s.rcCallHost = VERR_INTERNAL_ERROR;
228	int rc = vmmR0CallHostLongJmp(&pVM->vmm.s.CallHostR0JmpBuf, VINF_VMM_CALL_HOST);
229	if (rc == VINF_SUCCESS)
230	rc = pVM->vmm.s.rcCallHost;
231	return rc;
232	}
233
234
235	#ifdef VBOX_WITH_STATISTICS
236	/**
237	* Record return code statistics
238	* @param pVM The VM handle.
239	* @param rc The status code.
240	*/
241	static void vmmR0RecordRC(PVM pVM, int rc)
242	{
243	/*
244	* Collect statistics.
245	*/
246	switch (rc)
247	{
248	case VINF_SUCCESS:
249	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetNormal);
250	break;
251	case VINF_EM_RAW_INTERRUPT:
252	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetInterrupt);
253	break;
254	case VINF_EM_RAW_INTERRUPT_HYPER:
255	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetInterruptHyper);
256	break;
257	case VINF_EM_RAW_GUEST_TRAP:
258	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetGuestTrap);
259	break;
260	case VINF_EM_RAW_RING_SWITCH:
261	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetRingSwitch);
262	break;
263	case VINF_EM_RAW_RING_SWITCH_INT:
264	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetRingSwitchInt);
265	break;
266	case VINF_EM_RAW_EXCEPTION_PRIVILEGED:
267	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetExceptionPrivilege);
268	break;
269	case VINF_EM_RAW_STALE_SELECTOR:
270	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetStaleSelector);
271	break;
272	case VINF_EM_RAW_IRET_TRAP:
273	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetIRETTrap);
274	break;
275	case VINF_IOM_HC_IOPORT_READ:
276	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetIORead);
277	break;
278	case VINF_IOM_HC_IOPORT_WRITE:
279	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetIOWrite);
280	break;
281	case VINF_IOM_HC_MMIO_READ:
282	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetMMIORead);
283	break;
284	case VINF_IOM_HC_MMIO_WRITE:
285	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetMMIOWrite);
286	break;
287	case VINF_IOM_HC_MMIO_READ_WRITE:
288	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetMMIOReadWrite);
289	break;
290	case VINF_PATM_HC_MMIO_PATCH_READ:
291	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetMMIOPatchRead);
292	break;
293	case VINF_PATM_HC_MMIO_PATCH_WRITE:
294	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetMMIOPatchWrite);
295	break;
296	case VINF_EM_RAW_EMULATE_INSTR:
297	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetEmulate);
298	break;
299	case VINF_PATCH_EMULATE_INSTR:
300	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetPatchEmulate);
301	break;
302	case VINF_EM_RAW_EMULATE_INSTR_LDT_FAULT:
303	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetLDTFault);
304	break;
305	case VINF_EM_RAW_EMULATE_INSTR_GDT_FAULT:
306	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetGDTFault);
307	break;
308	case VINF_EM_RAW_EMULATE_INSTR_IDT_FAULT:
309	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetIDTFault);
310	break;
311	case VINF_EM_RAW_EMULATE_INSTR_TSS_FAULT:
312	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetTSSFault);
313	break;
314	case VINF_EM_RAW_EMULATE_INSTR_PD_FAULT:
315	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetPDFault);
316	break;
317	case VINF_CSAM_PENDING_ACTION:
318	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetCSAMTask);
319	break;
320	case VINF_PGM_SYNC_CR3:
321	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetSyncCR3);
322	break;
323	case VINF_PATM_PATCH_INT3:
324	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetPatchInt3);
325	break;
326	case VINF_PATM_PATCH_TRAP_PF:
327	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetPatchPF);
328	break;
329	case VINF_PATM_PATCH_TRAP_GP:
330	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetPatchGP);
331	break;
332	case VINF_PATM_PENDING_IRQ_AFTER_IRET:
333	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetPatchIretIRQ);
334	break;
335	case VERR_REM_FLUSHED_PAGES_OVERFLOW:
336	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetPageOverflow);
337	break;
338	case VINF_EM_RESCHEDULE_REM:
339	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetRescheduleREM);
340	break;
341	case VINF_EM_RAW_TO_R3:
342	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetToR3);
343	break;
344	case VINF_EM_RAW_TIMER_PENDING:
345	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetTimerPending);
346	break;
347	case VINF_EM_RAW_INTERRUPT_PENDING:
348	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetInterruptPending);
349	break;
350	case VINF_VMM_CALL_HOST:
351	switch (pVM->vmm.s.enmCallHostOperation)
352	{
353	case VMMCALLHOST_PDM_LOCK:
354	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetPDMLock);
355	break;
356	case VMMCALLHOST_PDM_QUEUE_FLUSH:
357	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetPDMQueueFlush);
358	break;
359	case VMMCALLHOST_PGM_POOL_GROW:
360	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetPGMPoolGrow);
361	break;
362	case VMMCALLHOST_PGM_LOCK:
363	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetPGMLock);
364	break;
365	case VMMCALLHOST_REM_REPLAY_HANDLER_NOTIFICATIONS:
366	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetRemReplay);
367	break;
368	case VMMCALLHOST_PGM_RAM_GROW_RANGE:
369	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetPGMGrowRAM);
370	break;
371	case VMMCALLHOST_VMM_LOGGER_FLUSH:
372	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetLogFlush);
373	break;
374	case VMMCALLHOST_VM_SET_ERROR:
375	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetVMSetError);
376	break;
377	case VMMCALLHOST_VM_SET_RUNTIME_ERROR:
378	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetVMSetRuntimeError);
379	break;
380	default:
381	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetCallHost);
382	break;
383	}
384	break;
385	case VINF_PATM_DUPLICATE_FUNCTION:
386	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetPATMDuplicateFn);
387	break;
388	case VINF_PGM_CHANGE_MODE:
389	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetPGMChangeMode);
390	break;
391	case VINF_EM_RAW_EMULATE_INSTR_HLT:
392	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetEmulHlt);
393	break;
394	case VINF_EM_PENDING_REQUEST:
395	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetPendingRequest);
396	break;
397	default:
398	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetMisc);
399	break;
400	}
401	}
402	#endif /* VBOX_WITH_STATISTICS */
403
404
405	/**
406	* The Ring 0 entry point, called by the support library (SUP).
407	*
408	* @returns VBox status code.
409	* @param pVM The VM to operate on.
410	* @param uOperation Which operation to execute. (VMMR0OPERATION)
411	* @param pvArg Argument to the operation.
412	*/
413	VMMR0DECL(int) VMMR0Entry(PVM pVM, unsigned /* make me an enum / uOperation, void pvArg)
414	{
415	switch (uOperation)
416	{
417	/*
418	* Switch to GC.
419	* These calls return whatever the GC returns.
420	*/
421	case VMMR0_DO_RAW_RUN:
422	{
423	/* Safety precaution as VMX disables the switcher. */
424	Assert(!pVM->vmm.s.fSwitcherDisabled);
425	if (pVM->vmm.s.fSwitcherDisabled)
426	return VERR_NOT_SUPPORTED;
427
428	STAM_COUNTER_INC(&pVM->vmm.s.StatRunGC);
429	register int rc;
430	pVM->vmm.s.iLastGCRc = rc = pVM->vmm.s.pfnR0HostToGuest(pVM);
431
432	#ifdef VBOX_WITH_STATISTICS
433	vmmR0RecordRC(pVM, rc);
434	#endif
435
436	/*
437	* Check if there is an exit R0 action associated with the return code.
438	*/
439	switch (rc)
440	{
441	/*
442	* Default - no action, just return.
443	*/
444	default:
445	return rc;
446
447	/*
448	* We'll let TRPM change the stack frame so our return is different.
449	* Just keep in mind that after the call, things have changed!
450	*/
451	case VINF_EM_RAW_INTERRUPT:
452	case VINF_EM_RAW_INTERRUPT_HYPER:
453	{
454	#ifdef VBOX_WITHOUT_IDT_PATCHING
455	TRPMR0DispatchHostInterrupt(pVM);
456	#else /* !VBOX_WITHOUT_IDT_PATCHING */
457	/*
458	* Don't trust the compiler to get this right.
459	* gcc -fomit-frame-pointer screws up big time here. This works fine in 64-bit
460	* mode too because we push the arguments on the stack in the IDT patch code.
461	*/
462	# if defined(__GNUC__)
463	void pvRet = (uint8_t )__builtin_frame_address(0) + sizeof(void *);
464	# elif defined(_MSC_VER) && defined(__AMD64__) /** @todo check this with with VC7! */
465	void pvRet = (uint8_t )_AddressOfReturnAddress();
466	# elif defined(__X86__)
467	void pvRet = (uint8_t )&pVM - sizeof(pVM);
468	# else
469	# error "huh?"
470	# endif
471	if ( ((uintptr_t *)pvRet)[1] == (uintptr_t)pVM
472	&& ((uintptr_t *)pvRet)[2] == (uintptr_t)uOperation
473	&& ((uintptr_t *)pvRet)[3] == (uintptr_t)pvArg)
474	TRPMR0SetupInterruptDispatcherFrame(pVM, pvRet);
475	else
476	{
477	# if defined(DEBUG) \|\| defined(LOG_ENABLED)
478	static bool s_fHaveWarned = false;
479	if (!s_fHaveWarned)
480	{
481	s_fHaveWarned = true;
482	//RTLogPrintf("VMMR0.r0: The compiler can't find the stack frame!\n"); -- @todo export me!
483	RTLogComPrintf("VMMR0.r0: The compiler can't find the stack frame!\n");
484	}
485	# endif
486	TRPMR0DispatchHostInterrupt(pVM);
487	}
488	#endif /* !VBOX_WITHOUT_IDT_PATCHING */
489	return rc;
490	}
491	}
492	/* Won't get here! */
493	break;
494	}
495
496	/*
497	* Run guest code using the available hardware acceleration technology.
498	*/
499	case VMMR0_DO_HWACC_RUN:
500	{
501	int rc;
502
503	STAM_COUNTER_INC(&pVM->vmm.s.StatRunGC);
504	rc = HWACCMR0Enable(pVM);
505	if (VBOX_SUCCESS(rc))
506	{
507	#ifdef DEBUG_NO_RING0_ASSERTIONS
508	g_pVMAssert = pVM;
509	#endif
510	rc = vmmR0CallHostSetJmp(&pVM->vmm.s.CallHostR0JmpBuf, HWACCMR0RunGuestCode, pVM); /* this may resume code. */
511	#ifdef DEBUG_NO_RING0_ASSERTIONS
512	g_pVMAssert = 0;
513	#endif
514	int rc2 = HWACCMR0Disable(pVM);
515	AssertRC(rc2);
516	}
517	pVM->vmm.s.iLastGCRc = rc;
518
519	#ifdef VBOX_WITH_STATISTICS
520	vmmR0RecordRC(pVM, rc);
521	#endif
522	/* No special action required for external interrupts, just return. */
523	return rc;
524	}
525
526	/*
527	* Initialize the R0 part of a VM instance.
528	*/
529	case VMMR0_DO_VMMR0_INIT:
530	{
531	RTCCUINTREG fFlags = ASMIntDisableFlags();
532	int rc = VMMR0Init(pVM, (unsigned)(uintptr_t)pvArg);
533	ASMSetFlags(fFlags);
534	return rc;
535	}
536
537	/*
538	* Terminate the R0 part of a VM instance.
539	*/
540	case VMMR0_DO_VMMR0_TERM:
541	{
542	RTCCUINTREG fFlags = ASMIntDisableFlags();
543	int rc = VMMR0Term(pVM);
544	ASMSetFlags(fFlags);
545	return rc;
546	}
547
548	/*
549	* Setup the hardware accelerated raw-mode session.
550	*/
551	case VMMR0_DO_HWACC_SETUP_VM:
552	{
553	RTCCUINTREG fFlags = ASMIntDisableFlags();
554	int rc = HWACCMR0SetupVMX(pVM);
555	ASMSetFlags(fFlags);
556	return rc;
557	}
558
559	/*
560	* Switch to GC to execute Hypervisor function.
561	*/
562	case VMMR0_DO_CALL_HYPERVISOR:
563	{
564	/* Safety precaution as VMX disables the switcher. */
565	Assert(!pVM->vmm.s.fSwitcherDisabled);
566	if (pVM->vmm.s.fSwitcherDisabled)
567	return VERR_NOT_SUPPORTED;
568
569	RTCCUINTREG fFlags = ASMIntDisableFlags();
570	int rc = pVM->vmm.s.pfnR0HostToGuest(pVM);
571	ASMSetFlags(fFlags);
572	return rc;
573	}
574
575	#ifdef VBOX_WITH_INTERNAL_NETWORKING
576	/*
577	* Services.
578	*/
579	case VMMR0_DO_INTNET_OPEN:
580	case VMMR0_DO_INTNET_IF_CLOSE:
581	case VMMR0_DO_INTNET_IF_GET_RING3_BUFFER:
582	case VMMR0_DO_INTNET_IF_SET_PROMISCUOUS_MODE:
583	case VMMR0_DO_INTNET_IF_SEND:
584	case VMMR0_DO_INTNET_IF_WAIT:
585	{
586	/*
587	* Validate arguments a bit first.
588	*/
589	if (!VALID_PTR(pvArg))
590	return VERR_INVALID_POINTER;
591	if (!VALID_PTR(pVM))
592	return VERR_INVALID_POINTER;
593	if (pVM->pVMR0 != pVM)
594	return VERR_INVALID_POINTER;
595	if (!VALID_PTR(pVM->pSession))
596	return VERR_INVALID_POINTER;
597	if (!g_pIntNet)
598	return VERR_FILE_NOT_FOUND; ///@todo fix this status code!
599
600	/*
601	* Unpack the arguments and call the service.
602	*/
603	switch (uOperation)
604	{
605	case VMMR0_DO_INTNET_OPEN:
606	{
607	PINTNETOPENARGS pArgs = (PINTNETOPENARGS)pvArg;
608	return INTNETR0Open(g_pIntNet, pVM->pSession, &pArgs->szNetwork[0], pArgs->cbSend, pArgs->cbRecv, pArgs->fRestrictAccess, &pArgs->hIf);
609	}
610
611	case VMMR0_DO_INTNET_IF_CLOSE:
612	{
613	PINTNETIFCLOSEARGS pArgs = (PINTNETIFCLOSEARGS)pvArg;
614	return INTNETR0IfClose(g_pIntNet, pArgs->hIf);
615	}
616
617	case VMMR0_DO_INTNET_IF_GET_RING3_BUFFER:
618	{
619	PINTNETIFGETRING3BUFFERARGS pArgs = (PINTNETIFGETRING3BUFFERARGS)pvArg;
620	return INTNETR0IfGetRing3Buffer(g_pIntNet, pArgs->hIf, &pArgs->pRing3Buf);
621	}
622
623	case VMMR0_DO_INTNET_IF_SET_PROMISCUOUS_MODE:
624	{
625	PINTNETIFSETPROMISCUOUSMODEARGS pArgs = (PINTNETIFSETPROMISCUOUSMODEARGS)pvArg;
626	return INTNETR0IfSetPromiscuousMode(g_pIntNet, pArgs->hIf, pArgs->fPromiscuous);
627	}
628
629	case VMMR0_DO_INTNET_IF_SEND:
630	{
631	PINTNETIFSENDARGS pArgs = (PINTNETIFSENDARGS)pvArg;
632	return INTNETR0IfSend(g_pIntNet, pArgs->hIf, pArgs->pvFrame, pArgs->cbFrame);
633	}
634
635	case VMMR0_DO_INTNET_IF_WAIT:
636	{
637	PINTNETIFWAITARGS pArgs = (PINTNETIFWAITARGS)pvArg;
638	return INTNETR0IfWait(g_pIntNet, pArgs->hIf, pArgs->cMillies);
639	}
640
641	default:
642	return VERR_NOT_SUPPORTED;
643	}
644	}
645	#endif /* VBOX_WITH_INTERNAL_NETWORKING */
646
647	/*
648	* For profiling.
649	*/
650	case VMMR0_DO_NOP:
651	return VINF_SUCCESS;
652
653	/*
654	* For testing Ring-0 APIs invoked in this environment.
655	*/
656	case VMMR0_DO_TESTS:
657	/** @todo make new test */
658	return VINF_SUCCESS;
659
660
661	default:
662	/*
663	* We're returning VERR_NOT_SUPPORT here so we've got something else
664	* than -1 which the interrupt gate glue code might return.
665	*/
666	Log(("operation %#x is not supported\n", uOperation));
667	return VERR_NOT_SUPPORTED;
668	}
669	}
670
671
672	/**
673	* Internal R0 logger worker: Flush logger.
674	*
675	* @param pLogger The logger instance to flush.
676	* @remark This function must be exported!
677	*/
678	VMMR0DECL(void) vmmR0LoggerFlush(PRTLOGGER pLogger)
679	{
680	/*
681	* Convert the pLogger into a VM handle and 'call' back to Ring-3.
682	* (This is a bit paranoid code.)
683	*/
684	PVMMR0LOGGER pR0Logger = (PVMMR0LOGGER)((uintptr_t)pLogger - RT_OFFSETOF(VMMR0LOGGER, Logger));
685	if ( !VALID_PTR(pR0Logger)
686	\|\| !VALID_PTR(pR0Logger + 1)
687	\|\| !VALID_PTR(pLogger)
688	\|\| pLogger->u32Magic != RTLOGGER_MAGIC)
689	{
690	LogCom(("vmmR0LoggerFlush: pLogger=%p!\n", pLogger));
691	return;
692	}
693
694	PVM pVM = pR0Logger->pVM;
695	if ( !VALID_PTR(pVM)
696	\|\| pVM->pVMHC != pVM)
697	{
698	LogCom(("vmmR0LoggerFlush: pVM=%p! pLogger=%p\n", pVM, pLogger));
699	return;
700	}
701
702	/*
703	* Check that the jump buffer is armed.
704	*/
705	#ifdef __X86__
706	if (!pVM->vmm.s.CallHostR0JmpBuf.eip)
707	#else
708	if (!pVM->vmm.s.CallHostR0JmpBuf.rip)
709	#endif
710	{
711	LogCom(("vmmR0LoggerFlush: Jump buffer isn't armed!\n"));
712	pLogger->offScratch = 0;
713	return;
714	}
715
716	VMMR0CallHost(pVM, VMMCALLHOST_VMM_LOGGER_FLUSH, 0);
717	}
718
719	void R0LogFlush()
720	{
721	vmmR0LoggerFlush(RTLogDefaultInstance());
722	}
723
724	#ifdef DEBUG_NO_RING0_ASSERTIONS
725	#undef LOG_GROUP
726	#define LOG_GROUP LOG_GROUP_EM
727
728	/**
729	* Check if we really want to hit a breakpoint.
730	* Can jump back to ring-3 when the longjmp is armed.
731	*/
732	DECLEXPORT(bool) RTCALL RTAssertDoBreakpoint()
733	{
734	if (g_pVMAssert)
735	{
736	g_pVMAssert->vmm.s.enmCallHostOperation = VMMCALLHOST_VMM_LOGGER_FLUSH;
737	g_pVMAssert->vmm.s.u64CallHostArg = 0;
738	g_pVMAssert->vmm.s.rcCallHost = VERR_INTERNAL_ERROR;
739	int rc = vmmR0CallHostLongJmp(&g_pVMAssert->vmm.s.CallHostR0JmpBuf, VERR_INTERNAL_ERROR);
740	if (rc == VINF_SUCCESS)
741	rc = g_pVMAssert->vmm.s.rcCallHost;
742	}
743
744	return false;
745	}
746
747
748
749	/** Runtime assert implementation for Native Win32 Ring-0. */
750	DECLEXPORT(void) RTCALL AssertMsg1(const char pszExpr, unsigned uLine, const char pszFile, const char *pszFunction)
751	{
752	Log(("\n!!R0-Assertion Failed!!\n"
753	"Expression: %s\n"
754	"Location : %s(%d) %s\n",
755	pszExpr, pszFile, uLine, pszFunction));
756	}
757
758	/**
759	* Callback for RTLogFormatV which writes to the com port.
760	* See PFNLOGOUTPUT() for details.
761	*/
762	static DECLCALLBACK(size_t) rtLogOutput(void pv, const char pachChars, size_t cbChars)
763	{
764	for (size_t i=0;i<cbChars;i++)
765	Log(("%c", pachChars[i]));
766
767	return cbChars;
768	}
769
770	DECLEXPORT(void) RTCALL AssertMsg2(const char *pszFormat, ...)
771	{
772	PRTLOGGER pLog = RTLogDefaultInstance();
773	if (pLog)
774	{
775	va_list args;
776
777	va_start(args, pszFormat);
778	RTLogFormatV(rtLogOutput, pLog, pszFormat, args);
779	va_end(args);
780	R0LogFlush();
781	}
782	}
783
784	#endif

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source: vbox/trunk/src/VBox/VMM/VMMR0/VMMR0.cpp@ 2756

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