VMMR0.cpp@ 3840

Last change on this file since 3840 was 3696, checked in by vboxsync, 17 years ago
double underscore cleanup.
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1	/* $Id: VMMR0.cpp 3696 2007-07-18 17:00:33Z vboxsync $ */
2	/** @file
3	* VMM - Host Context Ring 0.
4	*/
5
6	/*
7	* Copyright (C) 2006-2007 innotek 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(RT_ARCH_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	#define DEBUG_NO_RING0_ASSERTIONS
61	#ifdef DEBUG_NO_RING0_ASSERTIONS
62	static PVM g_pVMAssert = 0;
63	#endif
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	#ifdef VBOX_WITH_INTERNAL_NETWORKING
84	LogFlow(("ModuleInit: g_pIntNet=%p\n", g_pIntNet));
85	g_pIntNet = NULL;
86	LogFlow(("ModuleInit: g_pIntNet=%p should be NULL now...\n", g_pIntNet));
87	int rc = INTNETR0Create(&g_pIntNet);
88	if (VBOX_SUCCESS(rc))
89	{
90	LogFlow(("ModuleInit: returns success. g_pIntNet=%p\n", g_pIntNet));
91	return 0;
92	}
93	g_pIntNet = NULL;
94	LogFlow(("ModuleTerm: returns %Vrc\n", rc));
95	return rc;
96	#else
97	return 0;
98	#endif
99	}
100
101
102	/**
103	* Terminate the module.
104	* This is called when we're finally unloaded.
105	*/
106	VMMR0DECL(void) ModuleTerm(void)
107	{
108	#ifdef VBOX_WITH_INTERNAL_NETWORKING
109	LogFlow(("ModuleTerm:\n"));
110	if (g_pIntNet)
111	{
112	INTNETR0Destroy(g_pIntNet);
113	g_pIntNet = NULL;
114	}
115	LogFlow(("ModuleTerm: returns\n"));
116	#endif
117	}
118
119
120	/**
121	* Initaties the R0 driver for a particular VM instance.
122	*
123	* @returns VBox status code.
124	*
125	* @param pVM The VM instance in question.
126	* @param uVersion The minimum module version required.
127	*/
128	static int VMMR0Init(PVM pVM, unsigned uVersion)
129	{
130	/*
131	* Check if compatible version.
132	*/
133	if ( uVersion != VBOX_VERSION
134	&& ( VBOX_GET_VERSION_MAJOR(uVersion) != VBOX_VERSION_MAJOR
135	\|\| VBOX_GET_VERSION_MINOR(uVersion) < VBOX_VERSION_MINOR))
136	return VERR_VERSION_MISMATCH;
137	if ( !VALID_PTR(pVM)
138	\|\| pVM->pVMR0 != pVM)
139	return VERR_INVALID_PARAMETER;
140
141	/*
142	* Register the EMT R0 logger instance.
143	*/
144	PVMMR0LOGGER pR0Logger = pVM->vmm.s.pR0Logger;
145	if (pR0Logger)
146	{
147	#if 0 /* testing of the logger. */
148	LogCom(("VMMR0Init: before %p\n", RTLogDefaultInstance()));
149	LogCom(("VMMR0Init: pfnFlush=%p actual=%p\n", pR0Logger->Logger.pfnFlush, vmmR0LoggerFlush));
150	LogCom(("VMMR0Init: pfnLogger=%p actual=%p\n", pR0Logger->Logger.pfnLogger, vmmR0LoggerWrapper));
151	LogCom(("VMMR0Init: offScratch=%d fFlags=%#x fDestFlags=%#x\n", pR0Logger->Logger.offScratch, pR0Logger->Logger.fFlags, pR0Logger->Logger.fDestFlags));
152
153	RTLogSetDefaultInstanceThread(&pR0Logger->Logger, (uintptr_t)pVM->pSession);
154	LogCom(("VMMR0Init: after %p reg\n", RTLogDefaultInstance()));
155	RTLogSetDefaultInstanceThread(NULL, 0);
156	LogCom(("VMMR0Init: after %p dereg\n", RTLogDefaultInstance()));
157
158	pR0Logger->Logger.pfnLogger("hello ring-0 logger\n");
159	LogCom(("VMMR0Init: returned succesfully from direct logger call.\n"));
160	pR0Logger->Logger.pfnFlush(&pR0Logger->Logger);
161	LogCom(("VMMR0Init: returned succesfully from direct flush call.\n"));
162
163	RTLogSetDefaultInstanceThread(&pR0Logger->Logger, (uintptr_t)pVM->pSession);
164	LogCom(("VMMR0Init: after %p reg2\n", RTLogDefaultInstance()));
165	pR0Logger->Logger.pfnLogger("hello ring-0 logger\n");
166	LogCom(("VMMR0Init: returned succesfully from direct logger call (2). offScratch=%d\n", pR0Logger->Logger.offScratch));
167	RTLogSetDefaultInstanceThread(NULL, 0);
168	LogCom(("VMMR0Init: after %p dereg2\n", RTLogDefaultInstance()));
169
170	RTLogLoggerEx(&pR0Logger->Logger, 0, ~0U, "hello ring-0 logger (RTLogLoggerEx)\n");
171	LogCom(("VMMR0Init: RTLogLoggerEx returned fine offScratch=%d\n", pR0Logger->Logger.offScratch));
172	#endif
173	RTLogSetDefaultInstanceThread(&pR0Logger->Logger, (uintptr_t)pVM->pSession);
174	}
175
176
177	/*
178	* Init VMXM.
179	*/
180	HWACCMR0Init(pVM);
181
182	/*
183	* Init CPUM.
184	*/
185	int rc = CPUMR0Init(pVM);
186
187	if (RT_FAILURE(rc))
188	RTLogSetDefaultInstanceThread(NULL, 0);
189	return rc;
190	}
191
192
193	/**
194	* Terminates the R0 driver for a particular VM instance.
195	*
196	* @returns VBox status code.
197	*
198	* @param pVM The VM instance in question.
199	*/
200	static int VMMR0Term(PVM pVM)
201	{
202	/*
203	* Deregister the logger.
204	*/
205	RTLogSetDefaultInstanceThread(NULL, 0);
206	return VINF_SUCCESS;
207	}
208
209
210	/**
211	* Calls the ring-3 host code.
212	*
213	* @returns VBox status code of the ring-3 call.
214	* @param pVM The VM handle.
215	* @param enmOperation The operation.
216	* @param uArg The argument to the operation.
217	*/
218	VMMR0DECL(int) VMMR0CallHost(PVM pVM, VMMCALLHOST enmOperation, uint64_t uArg)
219	{
220	/** @todo profile this! */
221	pVM->vmm.s.enmCallHostOperation = enmOperation;
222	pVM->vmm.s.u64CallHostArg = uArg;
223	pVM->vmm.s.rcCallHost = VERR_INTERNAL_ERROR;
224	int rc = vmmR0CallHostLongJmp(&pVM->vmm.s.CallHostR0JmpBuf, VINF_VMM_CALL_HOST);
225	if (rc == VINF_SUCCESS)
226	rc = pVM->vmm.s.rcCallHost;
227	return rc;
228	}
229
230
231	#ifdef VBOX_WITH_STATISTICS
232	/**
233	* Record return code statistics
234	* @param pVM The VM handle.
235	* @param rc The status code.
236	*/
237	static void vmmR0RecordRC(PVM pVM, int rc)
238	{
239	/*
240	* Collect statistics.
241	*/
242	switch (rc)
243	{
244	case VINF_SUCCESS:
245	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetNormal);
246	break;
247	case VINF_EM_RAW_INTERRUPT:
248	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetInterrupt);
249	break;
250	case VINF_EM_RAW_INTERRUPT_HYPER:
251	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetInterruptHyper);
252	break;
253	case VINF_EM_RAW_GUEST_TRAP:
254	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetGuestTrap);
255	break;
256	case VINF_EM_RAW_RING_SWITCH:
257	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetRingSwitch);
258	break;
259	case VINF_EM_RAW_RING_SWITCH_INT:
260	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetRingSwitchInt);
261	break;
262	case VINF_EM_RAW_EXCEPTION_PRIVILEGED:
263	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetExceptionPrivilege);
264	break;
265	case VINF_EM_RAW_STALE_SELECTOR:
266	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetStaleSelector);
267	break;
268	case VINF_EM_RAW_IRET_TRAP:
269	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetIRETTrap);
270	break;
271	case VINF_IOM_HC_IOPORT_READ:
272	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetIORead);
273	break;
274	case VINF_IOM_HC_IOPORT_WRITE:
275	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetIOWrite);
276	break;
277	case VINF_IOM_HC_MMIO_READ:
278	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetMMIORead);
279	break;
280	case VINF_IOM_HC_MMIO_WRITE:
281	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetMMIOWrite);
282	break;
283	case VINF_IOM_HC_MMIO_READ_WRITE:
284	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetMMIOReadWrite);
285	break;
286	case VINF_PATM_HC_MMIO_PATCH_READ:
287	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetMMIOPatchRead);
288	break;
289	case VINF_PATM_HC_MMIO_PATCH_WRITE:
290	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetMMIOPatchWrite);
291	break;
292	case VINF_EM_RAW_EMULATE_INSTR:
293	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetEmulate);
294	break;
295	case VINF_PATCH_EMULATE_INSTR:
296	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetPatchEmulate);
297	break;
298	case VINF_EM_RAW_EMULATE_INSTR_LDT_FAULT:
299	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetLDTFault);
300	break;
301	case VINF_EM_RAW_EMULATE_INSTR_GDT_FAULT:
302	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetGDTFault);
303	break;
304	case VINF_EM_RAW_EMULATE_INSTR_IDT_FAULT:
305	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetIDTFault);
306	break;
307	case VINF_EM_RAW_EMULATE_INSTR_TSS_FAULT:
308	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetTSSFault);
309	break;
310	case VINF_EM_RAW_EMULATE_INSTR_PD_FAULT:
311	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetPDFault);
312	break;
313	case VINF_CSAM_PENDING_ACTION:
314	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetCSAMTask);
315	break;
316	case VINF_PGM_SYNC_CR3:
317	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetSyncCR3);
318	break;
319	case VINF_PATM_PATCH_INT3:
320	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetPatchInt3);
321	break;
322	case VINF_PATM_PATCH_TRAP_PF:
323	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetPatchPF);
324	break;
325	case VINF_PATM_PATCH_TRAP_GP:
326	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetPatchGP);
327	break;
328	case VINF_PATM_PENDING_IRQ_AFTER_IRET:
329	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetPatchIretIRQ);
330	break;
331	case VERR_REM_FLUSHED_PAGES_OVERFLOW:
332	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetPageOverflow);
333	break;
334	case VINF_EM_RESCHEDULE_REM:
335	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetRescheduleREM);
336	break;
337	case VINF_EM_RAW_TO_R3:
338	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetToR3);
339	break;
340	case VINF_EM_RAW_TIMER_PENDING:
341	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetTimerPending);
342	break;
343	case VINF_EM_RAW_INTERRUPT_PENDING:
344	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetInterruptPending);
345	break;
346	case VINF_VMM_CALL_HOST:
347	switch (pVM->vmm.s.enmCallHostOperation)
348	{
349	case VMMCALLHOST_PDM_LOCK:
350	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetPDMLock);
351	break;
352	case VMMCALLHOST_PDM_QUEUE_FLUSH:
353	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetPDMQueueFlush);
354	break;
355	case VMMCALLHOST_PGM_POOL_GROW:
356	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetPGMPoolGrow);
357	break;
358	case VMMCALLHOST_PGM_LOCK:
359	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetPGMLock);
360	break;
361	case VMMCALLHOST_REM_REPLAY_HANDLER_NOTIFICATIONS:
362	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetRemReplay);
363	break;
364	case VMMCALLHOST_PGM_RAM_GROW_RANGE:
365	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetPGMGrowRAM);
366	break;
367	case VMMCALLHOST_VMM_LOGGER_FLUSH:
368	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetLogFlush);
369	break;
370	case VMMCALLHOST_VM_SET_ERROR:
371	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetVMSetError);
372	break;
373	case VMMCALLHOST_VM_SET_RUNTIME_ERROR:
374	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetVMSetRuntimeError);
375	break;
376	default:
377	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetCallHost);
378	break;
379	}
380	break;
381	case VINF_PATM_DUPLICATE_FUNCTION:
382	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetPATMDuplicateFn);
383	break;
384	case VINF_PGM_CHANGE_MODE:
385	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetPGMChangeMode);
386	break;
387	case VINF_EM_RAW_EMULATE_INSTR_HLT:
388	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetEmulHlt);
389	break;
390	case VINF_EM_PENDING_REQUEST:
391	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetPendingRequest);
392	break;
393	default:
394	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetMisc);
395	break;
396	}
397	}
398	#endif /* VBOX_WITH_STATISTICS */
399
400
401	/**
402	* The Ring 0 entry point, called by the support library (SUP).
403	*
404	* @returns VBox status code.
405	* @param pVM The VM to operate on.
406	* @param uOperation Which operation to execute. (VMMR0OPERATION)
407	* @param pvArg Argument to the operation.
408	*/
409	VMMR0DECL(int) VMMR0Entry(PVM pVM, unsigned /* make me an enum / uOperation, void pvArg)
410	{
411	switch (uOperation)
412	{
413	/*
414	* Switch to GC.
415	* These calls return whatever the GC returns.
416	*/
417	case VMMR0_DO_RAW_RUN:
418	{
419	/* Safety precaution as VMX disables the switcher. */
420	Assert(!pVM->vmm.s.fSwitcherDisabled);
421	if (pVM->vmm.s.fSwitcherDisabled)
422	return VERR_NOT_SUPPORTED;
423
424	STAM_COUNTER_INC(&pVM->vmm.s.StatRunGC);
425	register int rc;
426	pVM->vmm.s.iLastGCRc = rc = pVM->vmm.s.pfnR0HostToGuest(pVM);
427
428	#ifdef VBOX_WITH_STATISTICS
429	vmmR0RecordRC(pVM, rc);
430	#endif
431
432	/*
433	* Check if there is an exit R0 action associated with the return code.
434	*/
435	switch (rc)
436	{
437	/*
438	* Default - no action, just return.
439	*/
440	default:
441	return rc;
442
443	/*
444	* We'll let TRPM change the stack frame so our return is different.
445	* Just keep in mind that after the call, things have changed!
446	*/
447	case VINF_EM_RAW_INTERRUPT:
448	case VINF_EM_RAW_INTERRUPT_HYPER:
449	{
450	#ifdef VBOX_WITHOUT_IDT_PATCHING
451	TRPMR0DispatchHostInterrupt(pVM);
452	#else /* !VBOX_WITHOUT_IDT_PATCHING */
453	/*
454	* Don't trust the compiler to get this right.
455	* gcc -fomit-frame-pointer screws up big time here. This works fine in 64-bit
456	* mode too because we push the arguments on the stack in the IDT patch code.
457	*/
458	# if defined(__GNUC__)
459	void pvRet = (uint8_t )__builtin_frame_address(0) + sizeof(void *);
460	# elif defined(_MSC_VER) && defined(RT_ARCH_AMD64) /** @todo check this with with VC7! */
461	void pvRet = (uint8_t )_AddressOfReturnAddress();
462	# elif defined(RT_ARCH_X86)
463	void pvRet = (uint8_t )&pVM - sizeof(pVM);
464	# else
465	# error "huh?"
466	# endif
467	if ( ((uintptr_t *)pvRet)[1] == (uintptr_t)pVM
468	&& ((uintptr_t *)pvRet)[2] == (uintptr_t)uOperation
469	&& ((uintptr_t *)pvRet)[3] == (uintptr_t)pvArg)
470	TRPMR0SetupInterruptDispatcherFrame(pVM, pvRet);
471	else
472	{
473	# if defined(DEBUG) \|\| defined(LOG_ENABLED)
474	static bool s_fHaveWarned = false;
475	if (!s_fHaveWarned)
476	{
477	s_fHaveWarned = true;
478	//RTLogPrintf("VMMR0.r0: The compiler can't find the stack frame!\n"); -- @todo export me!
479	RTLogComPrintf("VMMR0.r0: The compiler can't find the stack frame!\n");
480	}
481	# endif
482	TRPMR0DispatchHostInterrupt(pVM);
483	}
484	#endif /* !VBOX_WITHOUT_IDT_PATCHING */
485	return rc;
486	}
487	}
488	/* Won't get here! */
489	break;
490	}
491
492	/*
493	* Run guest code using the available hardware acceleration technology.
494	*/
495	case VMMR0_DO_HWACC_RUN:
496	{
497	int rc;
498
499	STAM_COUNTER_INC(&pVM->vmm.s.StatRunGC);
500	rc = HWACCMR0Enable(pVM);
501	if (VBOX_SUCCESS(rc))
502	{
503	#ifdef DEBUG_NO_RING0_ASSERTIONS
504	g_pVMAssert = pVM;
505	#endif
506	rc = vmmR0CallHostSetJmp(&pVM->vmm.s.CallHostR0JmpBuf, HWACCMR0RunGuestCode, pVM); /* this may resume code. */
507	#ifdef DEBUG_NO_RING0_ASSERTIONS
508	g_pVMAssert = 0;
509	#endif
510	int rc2 = HWACCMR0Disable(pVM);
511	AssertRC(rc2);
512	}
513	pVM->vmm.s.iLastGCRc = rc;
514
515	#ifdef VBOX_WITH_STATISTICS
516	vmmR0RecordRC(pVM, rc);
517	#endif
518	/* No special action required for external interrupts, just return. */
519	return rc;
520	}
521
522	/*
523	* Initialize the R0 part of a VM instance.
524	*/
525	case VMMR0_DO_VMMR0_INIT:
526	{
527	RTCCUINTREG fFlags = ASMIntDisableFlags();
528	int rc = VMMR0Init(pVM, (unsigned)(uintptr_t)pvArg);
529	ASMSetFlags(fFlags);
530	return rc;
531	}
532
533	/*
534	* Terminate the R0 part of a VM instance.
535	*/
536	case VMMR0_DO_VMMR0_TERM:
537	{
538	RTCCUINTREG fFlags = ASMIntDisableFlags();
539	int rc = VMMR0Term(pVM);
540	ASMSetFlags(fFlags);
541	return rc;
542	}
543
544	/*
545	* Setup the hardware accelerated raw-mode session.
546	*/
547	case VMMR0_DO_HWACC_SETUP_VM:
548	{
549	RTCCUINTREG fFlags = ASMIntDisableFlags();
550	int rc = HWACCMR0SetupVMX(pVM);
551	ASMSetFlags(fFlags);
552	return rc;
553	}
554
555	/*
556	* Switch to GC to execute Hypervisor function.
557	*/
558	case VMMR0_DO_CALL_HYPERVISOR:
559	{
560	/* Safety precaution as VMX disables the switcher. */
561	Assert(!pVM->vmm.s.fSwitcherDisabled);
562	if (pVM->vmm.s.fSwitcherDisabled)
563	return VERR_NOT_SUPPORTED;
564
565	RTCCUINTREG fFlags = ASMIntDisableFlags();
566	int rc = pVM->vmm.s.pfnR0HostToGuest(pVM);
567	ASMSetFlags(fFlags);
568	return rc;
569	}
570
571	#ifdef VBOX_WITH_INTERNAL_NETWORKING
572	/*
573	* Services.
574	*/
575	case VMMR0_DO_INTNET_OPEN:
576	case VMMR0_DO_INTNET_IF_CLOSE:
577	case VMMR0_DO_INTNET_IF_GET_RING3_BUFFER:
578	case VMMR0_DO_INTNET_IF_SET_PROMISCUOUS_MODE:
579	case VMMR0_DO_INTNET_IF_SEND:
580	case VMMR0_DO_INTNET_IF_WAIT:
581	{
582	/*
583	* Validate arguments a bit first.
584	*/
585	if (!VALID_PTR(pvArg))
586	return VERR_INVALID_POINTER;
587	if (!VALID_PTR(pVM))
588	return VERR_INVALID_POINTER;
589	if (pVM->pVMR0 != pVM)
590	return VERR_INVALID_POINTER;
591	if (!VALID_PTR(pVM->pSession))
592	return VERR_INVALID_POINTER;
593	if (!g_pIntNet)
594	return VERR_FILE_NOT_FOUND; ///@todo fix this status code!
595
596	/*
597	* Unpack the arguments and call the service.
598	*/
599	switch (uOperation)
600	{
601	case VMMR0_DO_INTNET_OPEN:
602	{
603	PINTNETOPENARGS pArgs = (PINTNETOPENARGS)pvArg;
604	return INTNETR0Open(g_pIntNet, pVM->pSession, &pArgs->szNetwork[0], pArgs->cbSend, pArgs->cbRecv, pArgs->fRestrictAccess, &pArgs->hIf);
605	}
606
607	case VMMR0_DO_INTNET_IF_CLOSE:
608	{
609	PINTNETIFCLOSEARGS pArgs = (PINTNETIFCLOSEARGS)pvArg;
610	return INTNETR0IfClose(g_pIntNet, pArgs->hIf);
611	}
612
613	case VMMR0_DO_INTNET_IF_GET_RING3_BUFFER:
614	{
615	PINTNETIFGETRING3BUFFERARGS pArgs = (PINTNETIFGETRING3BUFFERARGS)pvArg;
616	return INTNETR0IfGetRing3Buffer(g_pIntNet, pArgs->hIf, &pArgs->pRing3Buf);
617	}
618
619	case VMMR0_DO_INTNET_IF_SET_PROMISCUOUS_MODE:
620	{
621	PINTNETIFSETPROMISCUOUSMODEARGS pArgs = (PINTNETIFSETPROMISCUOUSMODEARGS)pvArg;
622	return INTNETR0IfSetPromiscuousMode(g_pIntNet, pArgs->hIf, pArgs->fPromiscuous);
623	}
624
625	case VMMR0_DO_INTNET_IF_SEND:
626	{
627	PINTNETIFSENDARGS pArgs = (PINTNETIFSENDARGS)pvArg;
628	return INTNETR0IfSend(g_pIntNet, pArgs->hIf, pArgs->pvFrame, pArgs->cbFrame);
629	}
630
631	case VMMR0_DO_INTNET_IF_WAIT:
632	{
633	PINTNETIFWAITARGS pArgs = (PINTNETIFWAITARGS)pvArg;
634	return INTNETR0IfWait(g_pIntNet, pArgs->hIf, pArgs->cMillies);
635	}
636
637	default:
638	return VERR_NOT_SUPPORTED;
639	}
640	}
641	#endif /* VBOX_WITH_INTERNAL_NETWORKING */
642
643	/*
644	* For profiling.
645	*/
646	case VMMR0_DO_NOP:
647	return VINF_SUCCESS;
648
649	/*
650	* For testing Ring-0 APIs invoked in this environment.
651	*/
652	case VMMR0_DO_TESTS:
653	/** @todo make new test */
654	return VINF_SUCCESS;
655
656
657	default:
658	/*
659	* We're returning VERR_NOT_SUPPORT here so we've got something else
660	* than -1 which the interrupt gate glue code might return.
661	*/
662	Log(("operation %#x is not supported\n", uOperation));
663	return VERR_NOT_SUPPORTED;
664	}
665	}
666
667
668	/**
669	* Internal R0 logger worker: Flush logger.
670	*
671	* @param pLogger The logger instance to flush.
672	* @remark This function must be exported!
673	*/
674	VMMR0DECL(void) vmmR0LoggerFlush(PRTLOGGER pLogger)
675	{
676	/*
677	* Convert the pLogger into a VM handle and 'call' back to Ring-3.
678	* (This is a bit paranoid code.)
679	*/
680	PVMMR0LOGGER pR0Logger = (PVMMR0LOGGER)((uintptr_t)pLogger - RT_OFFSETOF(VMMR0LOGGER, Logger));
681	if ( !VALID_PTR(pR0Logger)
682	\|\| !VALID_PTR(pR0Logger + 1)
683	\|\| !VALID_PTR(pLogger)
684	\|\| pLogger->u32Magic != RTLOGGER_MAGIC)
685	{
686	LogCom(("vmmR0LoggerFlush: pLogger=%p!\n", pLogger));
687	return;
688	}
689
690	PVM pVM = pR0Logger->pVM;
691	if ( !VALID_PTR(pVM)
692	\|\| pVM->pVMHC != pVM)
693	{
694	LogCom(("vmmR0LoggerFlush: pVM=%p! pLogger=%p\n", pVM, pLogger));
695	return;
696	}
697
698	/*
699	* Check that the jump buffer is armed.
700	*/
701	#ifdef RT_ARCH_X86
702	if (!pVM->vmm.s.CallHostR0JmpBuf.eip)
703	#else
704	if (!pVM->vmm.s.CallHostR0JmpBuf.rip)
705	#endif
706	{
707	LogCom(("vmmR0LoggerFlush: Jump buffer isn't armed!\n"));
708	pLogger->offScratch = 0;
709	return;
710	}
711
712	VMMR0CallHost(pVM, VMMCALLHOST_VMM_LOGGER_FLUSH, 0);
713	}
714
715
716	void R0LogFlush(void)
717	{
718	vmmR0LoggerFlush(RTLogDefaultInstance());
719	}
720
721
722	#ifdef DEBUG_NO_RING0_ASSERTIONS
723	/**
724	* Check if we really want to hit a breakpoint.
725	* Can jump back to ring-3 when the longjmp is armed.
726	*/
727	DECLEXPORT(bool) RTCALL RTAssertDoBreakpoint()
728	{
729	if (g_pVMAssert)
730	{
731	g_pVMAssert->vmm.s.enmCallHostOperation = VMMCALLHOST_VMM_LOGGER_FLUSH;
732	g_pVMAssert->vmm.s.u64CallHostArg = 0;
733	g_pVMAssert->vmm.s.rcCallHost = VERR_INTERNAL_ERROR;
734	int rc = vmmR0CallHostLongJmp(&g_pVMAssert->vmm.s.CallHostR0JmpBuf, VERR_INTERNAL_ERROR);
735	if (rc == VINF_SUCCESS)
736	rc = g_pVMAssert->vmm.s.rcCallHost;
737	}
738
739	return false;
740	}
741	#endif /* !DEBUG_NO_RING0_ASSERTIONS */
742
743
744
745	# undef LOG_GROUP
746	# define LOG_GROUP LOG_GROUP_EM
747
748	/** Runtime assert implementation for Native Win32 Ring-0. */
749	DECLEXPORT(void) RTCALL AssertMsg1(const char pszExpr, unsigned uLine, const char pszFile, const char *pszFunction)
750	{
751	LogRel(("\n!!R0-Assertion Failed!!\n"
752	"Expression: %s\n"
753	"Location : %s(%d) %s\n",
754	pszExpr, pszFile, uLine, pszFunction));
755	}
756
757	/**
758	* Callback for RTLogFormatV which writes to the com port.
759	* See PFNLOGOUTPUT() for details.
760	*/
761	static DECLCALLBACK(size_t) rtLogOutput(void pv, const char pachChars, size_t cbChars)
762	{
763	for (size_t i=0;i<cbChars;i++)
764	LogRel(("%c", pachChars[i]));
765
766	return cbChars;
767	}
768
769	DECLEXPORT(void) RTCALL AssertMsg2(const char *pszFormat, ...)
770	{
771	PRTLOGGER pLog = RTLogDefaultInstance();
772	if (pLog)
773	{
774	va_list args;
775
776	va_start(args, pszFormat);
777	RTLogFormatV(rtLogOutput, pLog, pszFormat, args);
778	va_end(args);
779	R0LogFlush();
780	}
781	}

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source: vbox/trunk/src/VBox/VMM/VMMR0/VMMR0.cpp@ 3840

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