VMMR0.cpp@ 895

Last change on this file since 895 was 848, checked in by vboxsync, 18 years ago
AMD64 debugging: Added checks for NMIs and that IF is cleared when doing the context switching.
Property svn:eol-style set to `native` Property svn:keywords set to `Id`
File size: 24.6 KB

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1	/* $Id: VMMR0.cpp 848 2007-02-12 16:01:52Z 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	#ifdef __AMD64__ /** @todo fix logging on __AMD64__ (swapgs) */
28	# define LOG_DISABLED
29	#endif
30	#include <VBox/vmm.h>
31	#include <VBox/sup.h>
32	#include <VBox/trpm.h>
33	#include <VBox/cpum.h>
34	#include <VBox/stam.h>
35	#include <VBox/tm.h>
36	#include "VMMInternal.h"
37	#include <VBox/vm.h>
38	#include <VBox/intnet.h>
39	#include <VBox/hwaccm.h>
40
41	#include <VBox/err.h>
42	#include <VBox/version.h>
43	#include <VBox/log.h>
44	#include <iprt/assert.h>
45
46	#if defined(_MSC_VER) && defined(__AMD64__) /** @todo check this with with VC7! */
47	# pragma intrinsic(_AddressOfReturnAddress)
48	#endif
49
50
51	/*******************************************************************************
52	* Internal Functions *
53	*******************************************************************************/
54	static int VMMR0Init(PVM pVM, unsigned uVersion);
55	static int VMMR0Term(PVM pVM);
56	__BEGIN_DECLS
57	VMMR0DECL(int) ModuleInit(void);
58	VMMR0DECL(void) ModuleTerm(void);
59	__END_DECLS
60
61
62	//#define DEBUG_NO_RING0_ASSERTIONS
63	#ifdef DEBUG_NO_RING0_ASSERTIONS
64	static PVM g_pVMAssert = 0;
65	#endif
66
67	/*******************************************************************************
68	* Global Variables *
69	*******************************************************************************/
70	#ifndef __AMD64__ /* doesn't link here */
71	/** Pointer to the internal networking service instance. */
72	PINTNET g_pIntNet = 0;
73	#endif
74
75
76	/**
77	* Initialize the module.
78	* This is called when we're first loaded.
79	*
80	* @returns 0 on success.
81	* @returns VBox status on failure.
82	*/
83	VMMR0DECL(int) ModuleInit(void)
84	{
85	#ifndef __AMD64__ /* doesn't link here */
86	LogFlow(("ModuleInit: g_pIntNet=%p\n", g_pIntNet));
87	g_pIntNet = NULL;
88	LogFlow(("ModuleInit: g_pIntNet=%p should be NULL now...\n", g_pIntNet));
89	int rc = INTNETR0Create(&g_pIntNet);
90	if (VBOX_SUCCESS(rc))
91	{
92	LogFlow(("ModuleInit: returns success. g_pIntNet=%p\n", g_pIntNet));
93	return 0;
94	}
95	g_pIntNet = NULL;
96	LogFlow(("ModuleTerm: returns %Vrc\n", rc));
97	return rc;
98	#else
99	return 0;
100	#endif
101	}
102
103
104	/**
105	* Terminate the module.
106	* This is called when we're finally unloaded.
107	*/
108	VMMR0DECL(void) ModuleTerm(void)
109	{
110	#ifndef __AMD64__ /* doesn't link here */
111	LogFlow(("ModuleTerm:\n"));
112	if (g_pIntNet)
113	{
114	INTNETR0Destroy(g_pIntNet);
115	g_pIntNet = NULL;
116	}
117	LogFlow(("ModuleTerm: returns\n"));
118	#endif
119	}
120
121
122	/**
123	* Initaties the R0 driver for a particular VM instance.
124	*
125	* @returns VBox status code.
126	*
127	* @param pVM The VM instance in question.
128	* @param uVersion The minimum module version required.
129	*/
130	static int VMMR0Init(PVM pVM, unsigned uVersion)
131	{
132	/*
133	* Check if compatible version.
134	*/
135	if ( uVersion != VBOX_VERSION
136	&& ( VBOX_GET_VERSION_MAJOR(uVersion) != VBOX_VERSION_MAJOR
137	\|\| VBOX_GET_VERSION_MINOR(uVersion) < VBOX_VERSION_MINOR))
138	return VERR_VERSION_MISMATCH;
139
140	/*
141	* Register the EMT R0 logger instance.
142	*/
143	PVMMR0LOGGER pR0Logger = pVM->vmm.s.pR0Logger;
144	if (pR0Logger)
145	{
146	#if 0 /* testing of the logger. */
147	LogCom(("VMMR0Init: before %p\n", RTLogDefaultInstance()));
148	LogCom(("VMMR0Init: pfnFlush=%p actual=%p\n", pR0Logger->Logger.pfnFlush, vmmR0LoggerFlush));
149	LogCom(("VMMR0Init: pfnLogger=%p actual=%p\n", pR0Logger->Logger.pfnLogger, vmmR0LoggerWrapper));
150	LogCom(("VMMR0Init: offScratch=%d fFlags=%#x fDestFlags=%#x\n", pR0Logger->Logger.offScratch, pR0Logger->Logger.fFlags, pR0Logger->Logger.fDestFlags));
151
152	RTLogSetDefaultInstanceThread(&pR0Logger->Logger, (uintptr_t)pVM->pSession);
153	LogCom(("VMMR0Init: after %p reg\n", RTLogDefaultInstance()));
154	RTLogSetDefaultInstanceThread(NULL, 0);
155	LogCom(("VMMR0Init: after %p dereg\n", RTLogDefaultInstance()));
156
157	pR0Logger->Logger.pfnLogger("hello ring-0 logger\n");
158	LogCom(("VMMR0Init: returned succesfully from direct logger call.\n"));
159	pR0Logger->Logger.pfnFlush(&pR0Logger->Logger);
160	LogCom(("VMMR0Init: returned succesfully from direct flush call.\n"));
161
162	RTLogSetDefaultInstanceThread(&pR0Logger->Logger, (uintptr_t)pVM->pSession);
163	LogCom(("VMMR0Init: after %p reg2\n", RTLogDefaultInstance()));
164	pR0Logger->Logger.pfnLogger("hello ring-0 logger\n");
165	LogCom(("VMMR0Init: returned succesfully from direct logger call (2). offScratch=%d\n", pR0Logger->Logger.offScratch));
166	RTLogSetDefaultInstanceThread(NULL, 0);
167	LogCom(("VMMR0Init: after %p dereg2\n", RTLogDefaultInstance()));
168
169	RTLogLoggerEx(&pR0Logger->Logger, 0, ~0U, "hello ring-0 logger (RTLogLoggerEx)\n");
170	LogCom(("VMMR0Init: RTLogLoggerEx returned fine offScratch=%d\n", pR0Logger->Logger.offScratch));
171	#endif
172	RTLogSetDefaultInstanceThread(&pR0Logger->Logger, (uintptr_t)pVM->pSession);
173	}
174
175
176	/*
177	* Init VMXM.
178	*/
179	HWACCMR0Init(pVM);
180
181	/*
182	* Init CPUM.
183	*/
184	int rc = CPUMR0Init(pVM);
185
186	if (RT_FAILURE(rc))
187	RTLogSetDefaultInstanceThread(NULL, 0);
188	return rc;
189	}
190
191
192	/**
193	* Terminates the R0 driver for a particular VM instance.
194	*
195	* @returns VBox status code.
196	*
197	* @param pVM The VM instance in question.
198	*/
199	static int VMMR0Term(PVM pVM)
200	{
201	/*
202	* Deregister the logger.
203	*/
204	RTLogSetDefaultInstanceThread(NULL, 0);
205	return VINF_SUCCESS;
206	}
207
208
209	/**
210	* Calls the ring-3 host code.
211	*
212	* @returns VBox status code of the ring-3 call.
213	* @param pVM The VM handle.
214	* @param enmOperation The operation.
215	* @param uArg The argument to the operation.
216	*/
217	VMMR0DECL(int) VMMR0CallHost(PVM pVM, VMMCALLHOST enmOperation, uint64_t uArg)
218	{
219	/** @todo profile this! */
220	pVM->vmm.s.enmCallHostOperation = enmOperation;
221	pVM->vmm.s.u64CallHostArg = uArg;
222	pVM->vmm.s.rcCallHost = VERR_INTERNAL_ERROR;
223	int rc = vmmR0CallHostLongJmp(&pVM->vmm.s.CallHostR0JmpBuf, VINF_VMM_CALL_HOST);
224	if (rc == VINF_SUCCESS)
225	rc = pVM->vmm.s.rcCallHost;
226	return rc;
227	}
228
229
230	#ifdef VBOX_WITH_STATISTICS
231	/**
232	* Record return code statistics
233	* @param pVM The VM handle.
234	* @param rc The status code.
235	*/
236	static void vmmR0RecordRC(PVM pVM, int rc)
237	{
238	/*
239	* Collect statistics.
240	*/
241	switch (rc)
242	{
243	case VINF_SUCCESS:
244	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetNormal);
245	break;
246	case VINF_EM_RAW_INTERRUPT:
247	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetInterrupt);
248	break;
249	case VINF_EM_RAW_INTERRUPT_HYPER:
250	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetInterruptHyper);
251	break;
252	case VINF_EM_RAW_GUEST_TRAP:
253	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetGuestTrap);
254	break;
255	case VINF_EM_RAW_RING_SWITCH:
256	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetRingSwitch);
257	break;
258	case VINF_EM_RAW_RING_SWITCH_INT:
259	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetRingSwitchInt);
260	break;
261	case VINF_EM_RAW_EXCEPTION_PRIVILEGED:
262	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetExceptionPrivilege);
263	break;
264	case VINF_EM_RAW_STALE_SELECTOR:
265	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetStaleSelector);
266	break;
267	case VINF_EM_RAW_IRET_TRAP:
268	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetIRETTrap);
269	break;
270	case VINF_IOM_HC_IOPORT_READ:
271	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetIORead);
272	break;
273	case VINF_IOM_HC_IOPORT_WRITE:
274	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetIOWrite);
275	break;
276	case VINF_IOM_HC_IOPORT_READWRITE:
277	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetIOReadWrite);
278	break;
279	case VINF_IOM_HC_MMIO_READ:
280	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetMMIORead);
281	break;
282	case VINF_IOM_HC_MMIO_WRITE:
283	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetMMIOWrite);
284	break;
285	case VINF_IOM_HC_MMIO_READ_WRITE:
286	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetMMIOReadWrite);
287	break;
288	case VINF_PATM_HC_MMIO_PATCH_READ:
289	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetMMIOPatchRead);
290	break;
291	case VINF_PATM_HC_MMIO_PATCH_WRITE:
292	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetMMIOPatchWrite);
293	break;
294	case VINF_EM_RAW_EMULATE_INSTR:
295	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetEmulate);
296	break;
297	case VINF_PATCH_EMULATE_INSTR:
298	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetPatchEmulate);
299	break;
300	case VINF_EM_RAW_EMULATE_INSTR_LDT_FAULT:
301	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetLDTFault);
302	break;
303	case VINF_EM_RAW_EMULATE_INSTR_GDT_FAULT:
304	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetGDTFault);
305	break;
306	case VINF_EM_RAW_EMULATE_INSTR_IDT_FAULT:
307	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetIDTFault);
308	break;
309	case VINF_EM_RAW_EMULATE_INSTR_TSS_FAULT:
310	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetTSSFault);
311	break;
312	case VINF_EM_RAW_EMULATE_INSTR_PD_FAULT:
313	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetPDFault);
314	break;
315	case VINF_CSAM_PENDING_ACTION:
316	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetCSAMTask);
317	break;
318	case VINF_PGM_SYNC_CR3:
319	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetSyncCR3);
320	break;
321	case VINF_PATM_PATCH_INT3:
322	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetPatchInt3);
323	break;
324	case VINF_PATM_PATCH_TRAP_PF:
325	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetPatchPF);
326	break;
327	case VINF_PATM_PATCH_TRAP_GP:
328	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetPatchGP);
329	break;
330	case VINF_PATM_PENDING_IRQ_AFTER_IRET:
331	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetPatchIretIRQ);
332	break;
333	case VERR_REM_FLUSHED_PAGES_OVERFLOW:
334	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetPageOverflow);
335	break;
336	case VINF_EM_RESCHEDULE_REM:
337	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetRescheduleREM);
338	break;
339	case VINF_EM_RAW_TO_R3:
340	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetToR3);
341	break;
342	case VINF_EM_RAW_TIMER_PENDING:
343	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetTimerPending);
344	break;
345	case VINF_EM_RAW_INTERRUPT_PENDING:
346	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetInterruptPending);
347	break;
348	case VINF_VMM_CALL_HOST:
349	switch (pVM->vmm.s.enmCallHostOperation)
350	{
351	case VMMCALLHOST_PDM_LOCK:
352	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetPDMLock);
353	break;
354	case VMMCALLHOST_PDM_QUEUE_FLUSH:
355	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetPDMQueueFlush);
356	break;
357	case VMMCALLHOST_PGM_POOL_GROW:
358	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetPGMPoolGrow);
359	break;
360	case VMMCALLHOST_PGM_LOCK:
361	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetPGMLock);
362	break;
363	case VMMCALLHOST_REM_REPLAY_HANDLER_NOTIFICATIONS:
364	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetRemReplay);
365	break;
366	case VMMCALLHOST_PGM_RAM_GROW_RANGE:
367	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetPGMGrowRAM);
368	break;
369	case VMMCALLHOST_VMM_LOGGER_FLUSH:
370	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetLogFlush);
371	break;
372	case VMMCALLHOST_VM_SET_ERROR:
373	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetVMSetError);
374	break;
375	case VMMCALLHOST_VM_SET_RUNTIME_ERROR:
376	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetVMSetRuntimeError);
377	break;
378	default:
379	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetCallHost);
380	break;
381	}
382	break;
383	case VINF_PATM_DUPLICATE_FUNCTION:
384	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetPATMDuplicateFn);
385	break;
386	case VINF_PGM_CHANGE_MODE:
387	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetPGMChangeMode);
388	break;
389	case VINF_EM_RAW_EMULATE_INSTR_HLT:
390	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetEmulHlt);
391	break;
392	case VINF_EM_PENDING_REQUEST:
393	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetPendingRequest);
394	break;
395	default:
396	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetMisc);
397	break;
398	}
399	}
400	#endif /* VBOX_WITH_STATISTICS */
401
402
403	/**
404	* The Ring 0 entry point, called by the support library (SUP).
405	*
406	* @returns VBox status code.
407	* @param pVM The VM to operate on.
408	* @param uOperation Which operation to execute. (VMMR0OPERATION)
409	* @param pvArg Argument to the operation.
410	*/
411	VMMR0DECL(int) VMMR0Entry(PVM pVM, unsigned /* make me an enum / uOperation, void pvArg)
412	{
413	switch (uOperation)
414	{
415	/*
416	* Switch to GC.
417	* These calls return whatever the GC returns.
418	*/
419	case VMMR0_DO_RAW_RUN:
420	{
421	/* Safety precaution as VMX disables the switcher. */
422	Assert(!pVM->vmm.s.fSwitcherDisabled);
423	if (pVM->vmm.s.fSwitcherDisabled)
424	return VERR_NOT_SUPPORTED;
425
426	STAM_COUNTER_INC(&pVM->vmm.s.StatRunGC);
427	register int rc;
428	TMCpuTickResume(pVM);
429	pVM->vmm.s.iLastGCRc = rc = pVM->vmm.s.pfnR0HostToGuest(pVM);
430	TMCpuTickPause(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	#if HC_ARCH_BITS == 64 /* AMD64 debugging - to be removed */
446	if ((unsigned)rc - 0xc0caff00U > 0xff)
447	return rc;
448	/* fall thru */
449	#else
450	return rc;
451	#endif
452
453	/*
454	* We'll let TRPM change the stack frame so our return is different.
455	* Just keep in mind that after the call, things have changed!
456	*/
457	case VINF_EM_RAW_INTERRUPT:
458	case VINF_EM_RAW_INTERRUPT_HYPER:
459	{
460	#ifdef VBOX_WITHOUT_IDT_PATCHING
461	TRPMR0DispatchHostInterrupt(pVM);
462	#else /* !VBOX_WITHOUT_IDT_PATCHING */
463	/*
464	* Don't trust the compiler to get this right.
465	* gcc -fomit-frame-pointer screws up big time here. This works fine in 64-bit
466	* mode too because we push the arguments on the stack in the IDT patch code.
467	*/
468	# if defined(__GNUC__)
469	void pvRet = (uint8_t )__builtin_frame_address(0) + sizeof(void *);
470	# elif defined(_MSC_VER) && defined(__AMD64__) /** @todo check this with with VC7! */
471	void pvRet = (uint8_t )_AddressOfReturnAddress();
472	# elif defined(__X86__)
473	void pvRet = (uint8_t )&pVM - sizeof(pVM);
474	# else
475	# error "huh?"
476	# endif
477	if ( ((uintptr_t *)pvRet)[1] == (uintptr_t)pVM
478	&& ((uintptr_t *)pvRet)[2] == (uintptr_t)uOperation
479	&& ((uintptr_t *)pvRet)[3] == (uintptr_t)pvArg)
480	TRPMR0SetupInterruptDispatcherFrame(pVM, pvRet);
481	else
482	{
483	# if defined(DEBUG) \|\| defined(LOG_ENABLED)
484	static bool s_fHaveWarned = false;
485	if (!s_fHaveWarned)
486	{
487	s_fHaveWarned = true;
488	//RTLogPrintf("VMMR0.r0: The compiler can't find the stack frame!\n"); -- @todo export me!
489	RTLogComPrintf("VMMR0.r0: The compiler can't find the stack frame!\n");
490	}
491	# endif
492	TRPMR0DispatchHostInterrupt(pVM);
493	}
494	#endif /* !VBOX_WITHOUT_IDT_PATCHING */
495	return rc;
496	}
497	}
498	/* Won't get here! */
499	break;
500	}
501
502	/*
503	* Run guest code using the available hardware acceleration technology.
504	*/
505	case VMMR0_DO_HWACC_RUN:
506	{
507	int rc;
508
509	STAM_COUNTER_INC(&pVM->vmm.s.StatRunGC);
510	TMCpuTickResume(pVM);
511	rc = HWACCMR0Enable(pVM);
512	if (VBOX_SUCCESS(rc))
513	{
514	#ifdef DEBUG_NO_RING0_ASSERTIONS
515	g_pVMAssert = pVM;
516	#endif
517	rc = vmmR0CallHostSetJmp(&pVM->vmm.s.CallHostR0JmpBuf, HWACCMR0RunGuestCode, pVM); /* this may resume code. */
518	#ifdef DEBUG_NO_RING0_ASSERTIONS
519	g_pVMAssert = 0;
520	#endif
521	int rc2 = HWACCMR0Disable(pVM);
522	AssertRC(rc2);
523	}
524	TMCpuTickPause(pVM);
525	pVM->vmm.s.iLastGCRc = rc;
526
527	#ifdef VBOX_WITH_STATISTICS
528	vmmR0RecordRC(pVM, rc);
529	#endif
530	/* No special action required for external interrupts, just return. */
531	return rc;
532	}
533
534	/*
535	* Initialize the R0 part of a VM instance.
536	*/
537	case VMMR0_DO_VMMR0_INIT:
538	return VMMR0Init(pVM, (unsigned)(uintptr_t)pvArg);
539
540	/*
541	* Terminate the R0 part of a VM instance.
542	*/
543	case VMMR0_DO_VMMR0_TERM:
544	return VMMR0Term(pVM);
545
546	/*
547	* Setup the hardware accelerated raw-mode session.
548	*/
549	case VMMR0_DO_HWACC_SETUP_VM:
550	return HWACCMR0SetupVMX(pVM);
551
552	/*
553	* Switch to GC to execute Hypervisor function.
554	*/
555	case VMMR0_DO_CALL_HYPERVISOR:
556	{
557	/* Safety precaution as VMX disables the switcher. */
558	Assert(!pVM->vmm.s.fSwitcherDisabled);
559	if (pVM->vmm.s.fSwitcherDisabled)
560	return VERR_NOT_SUPPORTED;
561
562	int rc = pVM->vmm.s.pfnR0HostToGuest(pVM);
563	return rc;
564	}
565
566	#if !defined(__L4__) && !defined(__AMD64__) /** @todo Port this to L4. / /* @todo fix logging and other services problems on AMD64. */
567	/*
568	* Services.
569	*/
570	case VMMR0_DO_INTNET_OPEN:
571	case VMMR0_DO_INTNET_IF_CLOSE:
572	case VMMR0_DO_INTNET_IF_GET_RING3_BUFFER:
573	case VMMR0_DO_INTNET_IF_SET_PROMISCUOUS_MODE:
574	case VMMR0_DO_INTNET_IF_SEND:
575	case VMMR0_DO_INTNET_IF_WAIT:
576	{
577	/*
578	* Validate arguments a bit first.
579	*/
580	if (!VALID_PTR(pvArg))
581	return VERR_INVALID_POINTER;
582	if (!VALID_PTR(pVM))
583	return VERR_INVALID_POINTER;
584	if (pVM->pVMHC != pVM)
585	return VERR_INVALID_POINTER;
586	if (!VALID_PTR(pVM->pSession))
587	return VERR_INVALID_POINTER;
588	if (!g_pIntNet)
589	return VERR_FILE_NOT_FOUND; ///@todo fix this status code!
590
591	/*
592	* Unpack the arguments and call the service.
593	*/
594	switch (uOperation)
595	{
596	case VMMR0_DO_INTNET_OPEN:
597	{
598	PINTNETOPENARGS pArgs = (PINTNETOPENARGS)pvArg;
599	return INTNETR0Open(g_pIntNet, pVM->pSession, &pArgs->szNetwork[0], pArgs->cbSend, pArgs->cbRecv, &pArgs->hIf);
600	}
601
602	case VMMR0_DO_INTNET_IF_CLOSE:
603	{
604	PINTNETIFCLOSEARGS pArgs = (PINTNETIFCLOSEARGS)pvArg;
605	return INTNETR0IfClose(g_pIntNet, pArgs->hIf);
606	}
607
608	case VMMR0_DO_INTNET_IF_GET_RING3_BUFFER:
609	{
610	PINTNETIFGETRING3BUFFERARGS pArgs = (PINTNETIFGETRING3BUFFERARGS)pvArg;
611	return INTNETR0IfGetRing3Buffer(g_pIntNet, pArgs->hIf, &pArgs->pRing3Buf);
612	}
613
614	case VMMR0_DO_INTNET_IF_SET_PROMISCUOUS_MODE:
615	{
616	PINTNETIFSETPROMISCUOUSMODEARGS pArgs = (PINTNETIFSETPROMISCUOUSMODEARGS)pvArg;
617	return INTNETR0IfSetPromiscuousMode(g_pIntNet, pArgs->hIf, pArgs->fPromiscuous);
618	}
619
620	case VMMR0_DO_INTNET_IF_SEND:
621	{
622	PINTNETIFSENDARGS pArgs = (PINTNETIFSENDARGS)pvArg;
623	return INTNETR0IfSend(g_pIntNet, pArgs->hIf, pArgs->pvFrame, pArgs->cbFrame);
624	}
625
626	case VMMR0_DO_INTNET_IF_WAIT:
627	{
628	PINTNETIFWAITARGS pArgs = (PINTNETIFWAITARGS)pvArg;
629	return INTNETR0IfWait(g_pIntNet, pArgs->hIf, pArgs->cMillies);
630	}
631
632	default:
633	return VERR_NOT_SUPPORTED;
634	}
635	}
636	#endif /* !__L4__ */
637
638	/*
639	* For profiling.
640	*/
641	case VMMR0_DO_NOP:
642	return VINF_SUCCESS;
643
644	/*
645	* For testing Ring-0 APIs invoked in this environment.
646	*/
647	case VMMR0_DO_TESTS:
648	/** @todo make new test */
649	return VINF_SUCCESS;
650
651
652	default:
653	/*
654	* We're returning VERR_NOT_SUPPORT here so we've got something else
655	* than -1 which the interrupt gate glue code might return.
656	*/
657	Log(("operation %#x is not supported\n", uOperation));
658	return VERR_NOT_SUPPORTED;
659	}
660	}
661
662
663	/**
664	* Internal R0 logger worker: Flush logger.
665	*
666	* @param pLogger The logger instance to flush.
667	* @remark This function must be exported!
668	*/
669	VMMR0DECL(void) vmmR0LoggerFlush(PRTLOGGER pLogger)
670	{
671	/*
672	* Convert the pLogger into a VM handle and 'call' back to Ring-3.
673	* (This is a bit paranoid code.)
674	*/
675	PVMMR0LOGGER pR0Logger = (PVMMR0LOGGER)((uintptr_t)pLogger - RT_OFFSETOF(VMMR0LOGGER, Logger));
676	if ( !VALID_PTR(pR0Logger)
677	\|\| !VALID_PTR(pR0Logger + 1)
678	\|\| !VALID_PTR(pLogger)
679	\|\| pLogger->u32Magic != RTLOGGER_MAGIC)
680	{
681	LogCom(("vmmR0LoggerFlush: pLogger=%p!\n", pLogger));
682	return;
683	}
684
685	PVM pVM = pR0Logger->pVM;
686	if ( !VALID_PTR(pVM)
687	\|\| pVM->pVMHC != pVM)
688	{
689	LogCom(("vmmR0LoggerFlush: pVM=%p! pLogger=%p\n", pVM, pLogger));
690	return;
691	}
692
693	/*
694	* Check that the jump buffer is armed.
695	*/
696	#ifdef __X86__
697	if (!pVM->vmm.s.CallHostR0JmpBuf.eip)
698	#else
699	if (!pVM->vmm.s.CallHostR0JmpBuf.rip)
700	#endif
701	{
702	LogCom(("vmmR0LoggerFlush: Jump buffer isn't armed!\n"));
703	pLogger->offScratch = 0;
704	return;
705	}
706
707	VMMR0CallHost(pVM, VMMCALLHOST_VMM_LOGGER_FLUSH, 0);
708	}
709
710	#ifdef DEBUG_NO_RING0_ASSERTIONS
711	/**
712	* Check if we really want to hit a breakpoint.
713	* Can jump back to ring-3 when the longjmp is armed.
714	*/
715	DECLEXPORT(bool) RTCALL RTAssertDoBreakpoint()
716	{
717	if (g_pVMAssert)
718	{
719	g_pVMAssert->vmm.s.enmCallHostOperation = VMMCALLHOST_VMM_LOGGER_FLUSH;
720	g_pVMAssert->vmm.s.u64CallHostArg = 0;
721	g_pVMAssert->vmm.s.rcCallHost = VERR_INTERNAL_ERROR;
722	int rc = vmmR0CallHostLongJmp(&g_pVMAssert->vmm.s.CallHostR0JmpBuf, VERR_INTERNAL_ERROR);
723	if (rc == VINF_SUCCESS)
724	rc = g_pVMAssert->vmm.s.rcCallHost;
725	}
726
727	return true;
728	}
729
730
731	#undef LOG_GROUP
732	#define LOG_GROUP LOG_GROUP_EM
733
734	/** Runtime assert implementation for Native Win32 Ring-0. */
735	DECLEXPORT(void) RTCALL AssertMsg1(const char pszExpr, unsigned uLine, const char pszFile, const char *pszFunction)
736	{
737	Log(("\n!!Assertion Failed!!\n"
738	"Expression: %s\n"
739	"Location : %s(%d) %s\n",
740	pszExpr, pszFile, uLine, pszFunction));
741	}
742
743	#endif

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source: vbox/trunk/src/VBox/VMM/VMMR0/VMMR0.cpp@ 895

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