VMMR0.cpp@ 1144

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1	/* $Id: VMMR0.cpp 1057 2007-02-23 20:38:37Z 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	if ( !VALID_PTR(pVM)
140	\|\| pVM->pVMR0 != pVM)
141	return VERR_INVALID_PARAMETER;
142
143	/*
144	* Register the EMT R0 logger instance.
145	*/
146	PVMMR0LOGGER pR0Logger = pVM->vmm.s.pR0Logger;
147	if (pR0Logger)
148	{
149	#if 0 /* testing of the logger. */
150	LogCom(("VMMR0Init: before %p\n", RTLogDefaultInstance()));
151	LogCom(("VMMR0Init: pfnFlush=%p actual=%p\n", pR0Logger->Logger.pfnFlush, vmmR0LoggerFlush));
152	LogCom(("VMMR0Init: pfnLogger=%p actual=%p\n", pR0Logger->Logger.pfnLogger, vmmR0LoggerWrapper));
153	LogCom(("VMMR0Init: offScratch=%d fFlags=%#x fDestFlags=%#x\n", pR0Logger->Logger.offScratch, pR0Logger->Logger.fFlags, pR0Logger->Logger.fDestFlags));
154
155	RTLogSetDefaultInstanceThread(&pR0Logger->Logger, (uintptr_t)pVM->pSession);
156	LogCom(("VMMR0Init: after %p reg\n", RTLogDefaultInstance()));
157	RTLogSetDefaultInstanceThread(NULL, 0);
158	LogCom(("VMMR0Init: after %p dereg\n", RTLogDefaultInstance()));
159
160	pR0Logger->Logger.pfnLogger("hello ring-0 logger\n");
161	LogCom(("VMMR0Init: returned succesfully from direct logger call.\n"));
162	pR0Logger->Logger.pfnFlush(&pR0Logger->Logger);
163	LogCom(("VMMR0Init: returned succesfully from direct flush call.\n"));
164
165	RTLogSetDefaultInstanceThread(&pR0Logger->Logger, (uintptr_t)pVM->pSession);
166	LogCom(("VMMR0Init: after %p reg2\n", RTLogDefaultInstance()));
167	pR0Logger->Logger.pfnLogger("hello ring-0 logger\n");
168	LogCom(("VMMR0Init: returned succesfully from direct logger call (2). offScratch=%d\n", pR0Logger->Logger.offScratch));
169	RTLogSetDefaultInstanceThread(NULL, 0);
170	LogCom(("VMMR0Init: after %p dereg2\n", RTLogDefaultInstance()));
171
172	RTLogLoggerEx(&pR0Logger->Logger, 0, ~0U, "hello ring-0 logger (RTLogLoggerEx)\n");
173	LogCom(("VMMR0Init: RTLogLoggerEx returned fine offScratch=%d\n", pR0Logger->Logger.offScratch));
174	#endif
175	RTLogSetDefaultInstanceThread(&pR0Logger->Logger, (uintptr_t)pVM->pSession);
176	}
177
178
179	/*
180	* Init VMXM.
181	*/
182	HWACCMR0Init(pVM);
183
184	/*
185	* Init CPUM.
186	*/
187	int rc = CPUMR0Init(pVM);
188
189	if (RT_FAILURE(rc))
190	RTLogSetDefaultInstanceThread(NULL, 0);
191	return rc;
192	}
193
194
195	/**
196	* Terminates the R0 driver for a particular VM instance.
197	*
198	* @returns VBox status code.
199	*
200	* @param pVM The VM instance in question.
201	*/
202	static int VMMR0Term(PVM pVM)
203	{
204	/*
205	* Deregister the logger.
206	*/
207	RTLogSetDefaultInstanceThread(NULL, 0);
208	return VINF_SUCCESS;
209	}
210
211
212	/**
213	* Calls the ring-3 host code.
214	*
215	* @returns VBox status code of the ring-3 call.
216	* @param pVM The VM handle.
217	* @param enmOperation The operation.
218	* @param uArg The argument to the operation.
219	*/
220	VMMR0DECL(int) VMMR0CallHost(PVM pVM, VMMCALLHOST enmOperation, uint64_t uArg)
221	{
222	/** @todo profile this! */
223	pVM->vmm.s.enmCallHostOperation = enmOperation;
224	pVM->vmm.s.u64CallHostArg = uArg;
225	pVM->vmm.s.rcCallHost = VERR_INTERNAL_ERROR;
226	int rc = vmmR0CallHostLongJmp(&pVM->vmm.s.CallHostR0JmpBuf, VINF_VMM_CALL_HOST);
227	if (rc == VINF_SUCCESS)
228	rc = pVM->vmm.s.rcCallHost;
229	return rc;
230	}
231
232
233	#ifdef VBOX_WITH_STATISTICS
234	/**
235	* Record return code statistics
236	* @param pVM The VM handle.
237	* @param rc The status code.
238	*/
239	static void vmmR0RecordRC(PVM pVM, int rc)
240	{
241	/*
242	* Collect statistics.
243	*/
244	switch (rc)
245	{
246	case VINF_SUCCESS:
247	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetNormal);
248	break;
249	case VINF_EM_RAW_INTERRUPT:
250	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetInterrupt);
251	break;
252	case VINF_EM_RAW_INTERRUPT_HYPER:
253	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetInterruptHyper);
254	break;
255	case VINF_EM_RAW_GUEST_TRAP:
256	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetGuestTrap);
257	break;
258	case VINF_EM_RAW_RING_SWITCH:
259	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetRingSwitch);
260	break;
261	case VINF_EM_RAW_RING_SWITCH_INT:
262	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetRingSwitchInt);
263	break;
264	case VINF_EM_RAW_EXCEPTION_PRIVILEGED:
265	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetExceptionPrivilege);
266	break;
267	case VINF_EM_RAW_STALE_SELECTOR:
268	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetStaleSelector);
269	break;
270	case VINF_EM_RAW_IRET_TRAP:
271	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetIRETTrap);
272	break;
273	case VINF_IOM_HC_IOPORT_READ:
274	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetIORead);
275	break;
276	case VINF_IOM_HC_IOPORT_WRITE:
277	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetIOWrite);
278	break;
279	case VINF_IOM_HC_IOPORT_READWRITE:
280	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetIOReadWrite);
281	break;
282	case VINF_IOM_HC_MMIO_READ:
283	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetMMIORead);
284	break;
285	case VINF_IOM_HC_MMIO_WRITE:
286	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetMMIOWrite);
287	break;
288	case VINF_IOM_HC_MMIO_READ_WRITE:
289	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetMMIOReadWrite);
290	break;
291	case VINF_PATM_HC_MMIO_PATCH_READ:
292	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetMMIOPatchRead);
293	break;
294	case VINF_PATM_HC_MMIO_PATCH_WRITE:
295	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetMMIOPatchWrite);
296	break;
297	case VINF_EM_RAW_EMULATE_INSTR:
298	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetEmulate);
299	break;
300	case VINF_PATCH_EMULATE_INSTR:
301	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetPatchEmulate);
302	break;
303	case VINF_EM_RAW_EMULATE_INSTR_LDT_FAULT:
304	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetLDTFault);
305	break;
306	case VINF_EM_RAW_EMULATE_INSTR_GDT_FAULT:
307	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetGDTFault);
308	break;
309	case VINF_EM_RAW_EMULATE_INSTR_IDT_FAULT:
310	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetIDTFault);
311	break;
312	case VINF_EM_RAW_EMULATE_INSTR_TSS_FAULT:
313	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetTSSFault);
314	break;
315	case VINF_EM_RAW_EMULATE_INSTR_PD_FAULT:
316	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetPDFault);
317	break;
318	case VINF_CSAM_PENDING_ACTION:
319	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetCSAMTask);
320	break;
321	case VINF_PGM_SYNC_CR3:
322	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetSyncCR3);
323	break;
324	case VINF_PATM_PATCH_INT3:
325	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetPatchInt3);
326	break;
327	case VINF_PATM_PATCH_TRAP_PF:
328	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetPatchPF);
329	break;
330	case VINF_PATM_PATCH_TRAP_GP:
331	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetPatchGP);
332	break;
333	case VINF_PATM_PENDING_IRQ_AFTER_IRET:
334	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetPatchIretIRQ);
335	break;
336	case VERR_REM_FLUSHED_PAGES_OVERFLOW:
337	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetPageOverflow);
338	break;
339	case VINF_EM_RESCHEDULE_REM:
340	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetRescheduleREM);
341	break;
342	case VINF_EM_RAW_TO_R3:
343	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetToR3);
344	break;
345	case VINF_EM_RAW_TIMER_PENDING:
346	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetTimerPending);
347	break;
348	case VINF_EM_RAW_INTERRUPT_PENDING:
349	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetInterruptPending);
350	break;
351	case VINF_VMM_CALL_HOST:
352	switch (pVM->vmm.s.enmCallHostOperation)
353	{
354	case VMMCALLHOST_PDM_LOCK:
355	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetPDMLock);
356	break;
357	case VMMCALLHOST_PDM_QUEUE_FLUSH:
358	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetPDMQueueFlush);
359	break;
360	case VMMCALLHOST_PGM_POOL_GROW:
361	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetPGMPoolGrow);
362	break;
363	case VMMCALLHOST_PGM_LOCK:
364	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetPGMLock);
365	break;
366	case VMMCALLHOST_REM_REPLAY_HANDLER_NOTIFICATIONS:
367	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetRemReplay);
368	break;
369	case VMMCALLHOST_PGM_RAM_GROW_RANGE:
370	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetPGMGrowRAM);
371	break;
372	case VMMCALLHOST_VMM_LOGGER_FLUSH:
373	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetLogFlush);
374	break;
375	case VMMCALLHOST_VM_SET_ERROR:
376	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetVMSetError);
377	break;
378	case VMMCALLHOST_VM_SET_RUNTIME_ERROR:
379	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetVMSetRuntimeError);
380	break;
381	default:
382	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetCallHost);
383	break;
384	}
385	break;
386	case VINF_PATM_DUPLICATE_FUNCTION:
387	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetPATMDuplicateFn);
388	break;
389	case VINF_PGM_CHANGE_MODE:
390	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetPGMChangeMode);
391	break;
392	case VINF_EM_RAW_EMULATE_INSTR_HLT:
393	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetEmulHlt);
394	break;
395	case VINF_EM_PENDING_REQUEST:
396	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetPendingRequest);
397	break;
398	default:
399	STAM_COUNTER_INC(&pVM->vmm.s.StatGCRetMisc);
400	break;
401	}
402	}
403	#endif /* VBOX_WITH_STATISTICS */
404
405
406	/**
407	* The Ring 0 entry point, called by the support library (SUP).
408	*
409	* @returns VBox status code.
410	* @param pVM The VM to operate on.
411	* @param uOperation Which operation to execute. (VMMR0OPERATION)
412	* @param pvArg Argument to the operation.
413	*/
414	VMMR0DECL(int) VMMR0Entry(PVM pVM, unsigned /* make me an enum / uOperation, void pvArg)
415	{
416	switch (uOperation)
417	{
418	/*
419	* Switch to GC.
420	* These calls return whatever the GC returns.
421	*/
422	case VMMR0_DO_RAW_RUN:
423	{
424	/* Safety precaution as VMX disables the switcher. */
425	Assert(!pVM->vmm.s.fSwitcherDisabled);
426	if (pVM->vmm.s.fSwitcherDisabled)
427	return VERR_NOT_SUPPORTED;
428
429	STAM_COUNTER_INC(&pVM->vmm.s.StatRunGC);
430	register int rc;
431	pVM->vmm.s.iLastGCRc = rc = pVM->vmm.s.pfnR0HostToGuest(pVM);
432
433	#ifdef VBOX_WITH_STATISTICS
434	vmmR0RecordRC(pVM, rc);
435	#endif
436
437	/*
438	* Check if there is an exit R0 action associated with the return code.
439	*/
440	switch (rc)
441	{
442	/*
443	* Default - no action, just return.
444	*/
445	default:
446	#if HC_ARCH_BITS == 64 /* AMD64 debugging - to be removed */
447	if ((unsigned)rc - 0xc0caff00U > 0xff)
448	return rc;
449	/* fall thru */
450	#else
451	return rc;
452	#endif
453
454	/*
455	* We'll let TRPM change the stack frame so our return is different.
456	* Just keep in mind that after the call, things have changed!
457	*/
458	case VINF_EM_RAW_INTERRUPT:
459	case VINF_EM_RAW_INTERRUPT_HYPER:
460	{
461	#ifdef VBOX_WITHOUT_IDT_PATCHING
462	TRPMR0DispatchHostInterrupt(pVM);
463	#else /* !VBOX_WITHOUT_IDT_PATCHING */
464	/*
465	* Don't trust the compiler to get this right.
466	* gcc -fomit-frame-pointer screws up big time here. This works fine in 64-bit
467	* mode too because we push the arguments on the stack in the IDT patch code.
468	*/
469	# if defined(__GNUC__)
470	void pvRet = (uint8_t )__builtin_frame_address(0) + sizeof(void *);
471	# elif defined(_MSC_VER) && defined(__AMD64__) /** @todo check this with with VC7! */
472	void pvRet = (uint8_t )_AddressOfReturnAddress();
473	# elif defined(__X86__)
474	void pvRet = (uint8_t )&pVM - sizeof(pVM);
475	# else
476	# error "huh?"
477	# endif
478	if ( ((uintptr_t *)pvRet)[1] == (uintptr_t)pVM
479	&& ((uintptr_t *)pvRet)[2] == (uintptr_t)uOperation
480	&& ((uintptr_t *)pvRet)[3] == (uintptr_t)pvArg)
481	TRPMR0SetupInterruptDispatcherFrame(pVM, pvRet);
482	else
483	{
484	# if defined(DEBUG) \|\| defined(LOG_ENABLED)
485	static bool s_fHaveWarned = false;
486	if (!s_fHaveWarned)
487	{
488	s_fHaveWarned = true;
489	//RTLogPrintf("VMMR0.r0: The compiler can't find the stack frame!\n"); -- @todo export me!
490	RTLogComPrintf("VMMR0.r0: The compiler can't find the stack frame!\n");
491	}
492	# endif
493	TRPMR0DispatchHostInterrupt(pVM);
494	}
495	#endif /* !VBOX_WITHOUT_IDT_PATCHING */
496	return rc;
497	}
498	}
499	/* Won't get here! */
500	break;
501	}
502
503	/*
504	* Run guest code using the available hardware acceleration technology.
505	*/
506	case VMMR0_DO_HWACC_RUN:
507	{
508	int rc;
509
510	STAM_COUNTER_INC(&pVM->vmm.s.StatRunGC);
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	pVM->vmm.s.iLastGCRc = rc;
525
526	#ifdef VBOX_WITH_STATISTICS
527	vmmR0RecordRC(pVM, rc);
528	#endif
529	/* No special action required for external interrupts, just return. */
530	return rc;
531	}
532
533	/*
534	* Initialize the R0 part of a VM instance.
535	*/
536	case VMMR0_DO_VMMR0_INIT:
537	return VMMR0Init(pVM, (unsigned)(uintptr_t)pvArg);
538
539	/*
540	* Terminate the R0 part of a VM instance.
541	*/
542	case VMMR0_DO_VMMR0_TERM:
543	return VMMR0Term(pVM);
544
545	/*
546	* Setup the hardware accelerated raw-mode session.
547	*/
548	case VMMR0_DO_HWACC_SETUP_VM:
549	return HWACCMR0SetupVMX(pVM);
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	int rc = pVM->vmm.s.pfnR0HostToGuest(pVM);
562	return rc;
563	}
564
565	#if !defined(__L4__) && !defined(__AMD64__) /** @todo Port this to L4. / /* @todo fix logging and other services problems on AMD64. */
566	/*
567	* Services.
568	*/
569	case VMMR0_DO_INTNET_OPEN:
570	case VMMR0_DO_INTNET_IF_CLOSE:
571	case VMMR0_DO_INTNET_IF_GET_RING3_BUFFER:
572	case VMMR0_DO_INTNET_IF_SET_PROMISCUOUS_MODE:
573	case VMMR0_DO_INTNET_IF_SEND:
574	case VMMR0_DO_INTNET_IF_WAIT:
575	{
576	/*
577	* Validate arguments a bit first.
578	*/
579	if (!VALID_PTR(pvArg))
580	return VERR_INVALID_POINTER;
581	if (!VALID_PTR(pVM))
582	return VERR_INVALID_POINTER;
583	if (pVM->pVMR0 != pVM)
584	return VERR_INVALID_POINTER;
585	if (!VALID_PTR(pVM->pSession))
586	return VERR_INVALID_POINTER;
587	if (!g_pIntNet)
588	return VERR_FILE_NOT_FOUND; ///@todo fix this status code!
589
590	/*
591	* Unpack the arguments and call the service.
592	*/
593	switch (uOperation)
594	{
595	case VMMR0_DO_INTNET_OPEN:
596	{
597	PINTNETOPENARGS pArgs = (PINTNETOPENARGS)pvArg;
598	return INTNETR0Open(g_pIntNet, pVM->pSession, &pArgs->szNetwork[0], pArgs->cbSend, pArgs->cbRecv, &pArgs->hIf);
599	}
600
601	case VMMR0_DO_INTNET_IF_CLOSE:
602	{
603	PINTNETIFCLOSEARGS pArgs = (PINTNETIFCLOSEARGS)pvArg;
604	return INTNETR0IfClose(g_pIntNet, pArgs->hIf);
605	}
606
607	case VMMR0_DO_INTNET_IF_GET_RING3_BUFFER:
608	{
609	PINTNETIFGETRING3BUFFERARGS pArgs = (PINTNETIFGETRING3BUFFERARGS)pvArg;
610	return INTNETR0IfGetRing3Buffer(g_pIntNet, pArgs->hIf, &pArgs->pRing3Buf);
611	}
612
613	case VMMR0_DO_INTNET_IF_SET_PROMISCUOUS_MODE:
614	{
615	PINTNETIFSETPROMISCUOUSMODEARGS pArgs = (PINTNETIFSETPROMISCUOUSMODEARGS)pvArg;
616	return INTNETR0IfSetPromiscuousMode(g_pIntNet, pArgs->hIf, pArgs->fPromiscuous);
617	}
618
619	case VMMR0_DO_INTNET_IF_SEND:
620	{
621	PINTNETIFSENDARGS pArgs = (PINTNETIFSENDARGS)pvArg;
622	return INTNETR0IfSend(g_pIntNet, pArgs->hIf, pArgs->pvFrame, pArgs->cbFrame);
623	}
624
625	case VMMR0_DO_INTNET_IF_WAIT:
626	{
627	PINTNETIFWAITARGS pArgs = (PINTNETIFWAITARGS)pvArg;
628	return INTNETR0IfWait(g_pIntNet, pArgs->hIf, pArgs->cMillies);
629	}
630
631	default:
632	return VERR_NOT_SUPPORTED;
633	}
634	}
635	#endif /* !__L4__ */
636
637	/*
638	* For profiling.
639	*/
640	case VMMR0_DO_NOP:
641	return VINF_SUCCESS;
642
643	/*
644	* For testing Ring-0 APIs invoked in this environment.
645	*/
646	case VMMR0_DO_TESTS:
647	/** @todo make new test */
648	return VINF_SUCCESS;
649
650
651	default:
652	/*
653	* We're returning VERR_NOT_SUPPORT here so we've got something else
654	* than -1 which the interrupt gate glue code might return.
655	*/
656	Log(("operation %#x is not supported\n", uOperation));
657	return VERR_NOT_SUPPORTED;
658	}
659	}
660
661
662	/**
663	* Internal R0 logger worker: Flush logger.
664	*
665	* @param pLogger The logger instance to flush.
666	* @remark This function must be exported!
667	*/
668	VMMR0DECL(void) vmmR0LoggerFlush(PRTLOGGER pLogger)
669	{
670	/*
671	* Convert the pLogger into a VM handle and 'call' back to Ring-3.
672	* (This is a bit paranoid code.)
673	*/
674	PVMMR0LOGGER pR0Logger = (PVMMR0LOGGER)((uintptr_t)pLogger - RT_OFFSETOF(VMMR0LOGGER, Logger));
675	if ( !VALID_PTR(pR0Logger)
676	\|\| !VALID_PTR(pR0Logger + 1)
677	\|\| !VALID_PTR(pLogger)
678	\|\| pLogger->u32Magic != RTLOGGER_MAGIC)
679	{
680	LogCom(("vmmR0LoggerFlush: pLogger=%p!\n", pLogger));
681	return;
682	}
683
684	PVM pVM = pR0Logger->pVM;
685	if ( !VALID_PTR(pVM)
686	\|\| pVM->pVMHC != pVM)
687	{
688	LogCom(("vmmR0LoggerFlush: pVM=%p! pLogger=%p\n", pVM, pLogger));
689	return;
690	}
691
692	/*
693	* Check that the jump buffer is armed.
694	*/
695	#ifdef __X86__
696	if (!pVM->vmm.s.CallHostR0JmpBuf.eip)
697	#else
698	if (!pVM->vmm.s.CallHostR0JmpBuf.rip)
699	#endif
700	{
701	LogCom(("vmmR0LoggerFlush: Jump buffer isn't armed!\n"));
702	pLogger->offScratch = 0;
703	return;
704	}
705
706	VMMR0CallHost(pVM, VMMCALLHOST_VMM_LOGGER_FLUSH, 0);
707	}
708
709	#ifdef DEBUG_NO_RING0_ASSERTIONS
710	/**
711	* Check if we really want to hit a breakpoint.
712	* Can jump back to ring-3 when the longjmp is armed.
713	*/
714	DECLEXPORT(bool) RTCALL RTAssertDoBreakpoint()
715	{
716	if (g_pVMAssert)
717	{
718	g_pVMAssert->vmm.s.enmCallHostOperation = VMMCALLHOST_VMM_LOGGER_FLUSH;
719	g_pVMAssert->vmm.s.u64CallHostArg = 0;
720	g_pVMAssert->vmm.s.rcCallHost = VERR_INTERNAL_ERROR;
721	int rc = vmmR0CallHostLongJmp(&g_pVMAssert->vmm.s.CallHostR0JmpBuf, VERR_INTERNAL_ERROR);
722	if (rc == VINF_SUCCESS)
723	rc = g_pVMAssert->vmm.s.rcCallHost;
724	}
725
726	return true;
727	}
728
729
730	#undef LOG_GROUP
731	#define LOG_GROUP LOG_GROUP_EM
732
733	/** Runtime assert implementation for Native Win32 Ring-0. */
734	DECLEXPORT(void) RTCALL AssertMsg1(const char pszExpr, unsigned uLine, const char pszFile, const char *pszFunction)
735	{
736	Log(("\n!!Assertion Failed!!\n"
737	"Expression: %s\n"
738	"Location : %s(%d) %s\n",
739	pszExpr, pszFile, uLine, pszFunction));
740	}
741
742	#endif

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source: vbox/trunk/src/VBox/VMM/VMMR0/VMMR0.cpp@ 1144

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