VM.cpp@ 1

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1	/** @file
2	*
3	* VM - Virtual Machine
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.alldomusa.eu.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_VM
27	#include <VBox/cfgm.h>
28	#include <VBox/vmm.h>
29	#include <VBox/mm.h>
30	#include <VBox/cpum.h>
31	#include <VBox/selm.h>
32	#include <VBox/trpm.h>
33	#include <VBox/dbgf.h>
34	#include <VBox/pgm.h>
35	#include <VBox/pdm.h>
36	#include <VBox/em.h>
37	#include <VBox/rem.h>
38	#include <VBox/tm.h>
39	#include <VBox/stam.h>
40	#include <VBox/patm.h>
41	#include <VBox/csam.h>
42	#include <VBox/iom.h>
43	#include <VBox/hwaccm.h>
44	#include "VMInternal.h"
45	#include <VBox/vm.h>
46
47	#include <VBox/sup.h>
48	#include <VBox/dbg.h>
49	#include <VBox/err.h>
50	#include <VBox/param.h>
51	#include <VBox/log.h>
52	#include <iprt/assert.h>
53	#include <iprt/alloc.h>
54	#include <iprt/asm.h>
55	#include <iprt/string.h>
56	#include <iprt/time.h>
57	#include <iprt/semaphore.h>
58	#include <iprt/thread.h>
59
60	#include <stdlib.h> /* getenv */
61
62
63	/*******************************************************************************
64	* Structures and Typedefs *
65	*******************************************************************************/
66	/**
67	* VM destruction callback registration record.
68	*/
69	typedef struct VMATDTOR
70	{
71	/** Pointer to the next record in the list. */
72	struct VMATDTOR *pNext;
73	/** Pointer to the callback function. */
74	PFNVMATDTOR pfnAtDtor;
75	/** The user argument. */
76	void *pvUser;
77	} VMATDTOR;
78	/** Pointer to a VM destruction callback registration record. */
79	typedef VMATDTOR *PVMATDTOR;
80
81
82	/*******************************************************************************
83	* Global Variables *
84	*******************************************************************************/
85	/** Pointer to the list of VMs. */
86	static PVM g_pVMsHead;
87
88	/** Pointer to the list of at VM destruction callbacks. */
89	static PVMATDTOR g_pVMAtDtorHead;
90	/** Lock the g_pVMAtDtorHead list. */
91	#define VM_ATDTOR_LOCK() do { } while (0)
92	/** Unlock the g_pVMAtDtorHead list. */
93	#define VM_ATDTOR_UNLOCK() do { } while (0)
94
95	/*******************************************************************************
96	* Internal Functions *
97	*******************************************************************************/
98	static int vmR3Create(PVM pVM, PFNVMATERROR pfnVMAtError, void pvUserVM, PFNCFGMCONSTRUCTOR pfnCFGMConstructor, void pvUserCFGM);
99	static int vmR3InitRing3(PVM pVM);
100	static int vmR3InitRing0(PVM pVM);
101	static int vmR3InitGC(PVM pVM);
102	static int vmR3InitDoCompleted(PVM pVM, VMINITCOMPLETED enmWhat);
103	static DECLCALLBACK(int) vmR3PowerOn(PVM pVM);
104	static DECLCALLBACK(int) vmR3Suspend(PVM pVM);
105	static DECLCALLBACK(int) vmR3Resume(PVM pVM);
106	static DECLCALLBACK(int) vmR3Save(PVM pVM, const char pszFilename, PFNVMPROGRESS pfnProgress, void pvUser);
107	static DECLCALLBACK(int) vmR3Load(PVM pVM, const char pszFilename, PFNVMPROGRESS pfnProgress, void pvUser);
108	static DECLCALLBACK(int) vmR3PowerOff(PVM pVM);
109	static void vmR3AtDtor(PVM pVM);
110	static void vmR3SetState(PVM pVM, VMSTATE enmStateNew);
111	static int vmR3AtReset(PVM pVM);
112	static DECLCALLBACK(int) vmR3Reset(PVM pVM);
113	static DECLCALLBACK(int) vmR3AtStateRegister(PVM pVM, PFNVMATSTATE pfnAtState, void *pvUser);
114	static DECLCALLBACK(int) vmR3AtStateDeregister(PVM pVM, PFNVMATSTATE pfnAtState, void *pvUser);
115	static DECLCALLBACK(int) vmR3AtErrorRegister(PVM pVM, PFNVMATERROR pfnAtError, void *pvUser);
116	static DECLCALLBACK(int) vmR3AtErrorDeregister(PVM pVM, PFNVMATERROR pfnAtError, void *pvUser);
117
118
119	/**
120	* Do global VMM init.
121	*
122	* @returns VBox status code.
123	*/
124	VMR3DECL(int) VMR3GlobalInit(void)
125	{
126	/*
127	* Only once.
128	*/
129	static bool fDone = false;
130	if (fDone)
131	return VINF_SUCCESS;
132
133	/*
134	* We're done.
135	*/
136	fDone = true;
137	return VINF_SUCCESS;
138	}
139
140
141
142	/**
143	* Creates a virtual machine by calling the supplied configuration constructor.
144	*
145	* On successful returned the VM is powered, i.e. VMR3PowerOn() should be
146	* called to start the execution.
147	*
148	* @returns 0 on success.
149	* @returns VBox error code on failure.
150	* @param pfnVMAtError Pointer to callback function for setting VM errors.
151	* This is called in the EM.
152	* @param pvUserVM The user argument passed to pfnVMAtError.
153	* @param pfnCFGMConstructor Pointer to callback function for constructing the VM configuration tree.
154	* This is called in the EM.
155	* @param pvUserCFGM The user argument passed to pfnCFGMConstructor.
156	* @param ppVM Where to store the 'handle' of the created VM.
157	*/
158	VMR3DECL(int) VMR3Create(PFNVMATERROR pfnVMAtError, void pvUserVM, PFNCFGMCONSTRUCTOR pfnCFGMConstructor, void pvUserCFGM, PVM *ppVM)
159	{
160	LogFlow(("VMR3Create: pfnVMAtError=%p pvUserVM=%p pfnCFGMConstructor=%p pvUserCFGM=%p ppVM=%p\n", pfnVMAtError, pvUserVM, pfnCFGMConstructor, pvUserCFGM, ppVM));
161
162	/*
163	* Because of the current hackiness of the applications
164	* we'll have to initialize global stuff from here.
165	* Later the applications will take care of this in a proper way.
166	*/
167	static bool fGlobalInitDone = false;
168	if (!fGlobalInitDone)
169	{
170	int rc = VMR3GlobalInit();
171	if (VBOX_FAILURE(rc))
172	return rc;
173	fGlobalInitDone = true;
174	}
175
176	/*
177	* Init support library.
178	*/
179	PSUPDRVSESSION pSession = NULL;
180	int rc = SUPInit(&pSession, 0);
181	if (VBOX_SUCCESS(rc))
182	{
183	/*
184	* Allocate memory for the VM structure.
185	*/
186	RTHCPHYS HCPhysVM;
187	PVM pVM = (PVM)SUPContAlloc(RT_ALIGN_Z(sizeof(*pVM), PAGE_SIZE), &HCPhysVM);
188	if (pVM)
189	{
190	Log(("VMR3Create: Allocated pVM=%p HCPhysVM=%VHp\n", pVM, HCPhysVM));
191
192	/*
193	* Do basic init of the VM structure.
194	*/
195	memset(pVM, 0, sizeof(*pVM));
196	pVM->pVMHC = pVM;
197	pVM->HCPhysVM = HCPhysVM;
198	pVM->pSession = pSession;
199	pVM->vm.s.offVM = RT_OFFSETOF(VM, vm.s);
200	pVM->vm.s.ppAtResetNext = &pVM->vm.s.pAtReset;
201	pVM->vm.s.ppAtStateNext = &pVM->vm.s.pAtState;
202	pVM->vm.s.ppAtErrorNext = &pVM->vm.s.pAtError;
203	rc = RTSemEventCreate(&pVM->vm.s.EventSemWait);
204	if (VBOX_FAILURE(rc))
205	{
206	AssertMsgFailed(("RTSemEventCreate -> rc=%Vrc\n", rc));
207	return rc;
208	}
209
210	/*
211	* Initialize STAM.
212	*/
213	rc = STAMR3Init(pVM);
214	if (VBOX_SUCCESS(rc))
215	{
216	/*
217	* Create the EMT thread and make it do VM initialization and go sleep
218	* in EM waiting for requests.
219	*/
220	VMEMULATIONTHREADARGS Args;
221	Args.pVM = pVM;
222	rc = RTThreadCreate(&pVM->ThreadEMT, &vmR3EmulationThread, &Args, _1M,
223	RTTHREADTYPE_EMULATION, RTTHREADFLAGS_WAITABLE, "EMT");
224	if (VBOX_SUCCESS(rc))
225	{
226	/*
227	* Issue a VM Create request and wait for it to complete.
228	*/
229	PVMREQ pReq;
230	rc = VMR3ReqCall(pVM, &pReq, RT_INDEFINITE_WAIT, (PFNRT)vmR3Create, 5, pVM, pfnVMAtError, pvUserVM, pfnCFGMConstructor, pvUserCFGM);
231	if (VBOX_SUCCESS(rc))
232	{
233	rc = pReq->iStatus;
234	VMR3ReqFree(pReq);
235	if (VBOX_SUCCESS(rc))
236	{
237	*ppVM = pVM;
238	LogFlow(("VMR3Create: returns VINF_SUCCESS *ppVM=%p\n", pVM));
239	return VINF_SUCCESS;
240	}
241	AssertMsgFailed(("vmR3Create failed rc=%Vrc\n", rc));
242	}
243	else
244	AssertMsgFailed(("VMR3ReqCall failed rc=%Vrc\n", rc));
245
246	/* Forcefully terminate the emulation thread. */
247	VM_FF_SET(pVM, VM_FF_TERMINATE);
248	VMR3NotifyFF(pVM, false);
249	RTThreadWait(pVM->ThreadEMT, 1000, NULL);
250	}
251
252	int rc2 = STAMR3Term(pVM);
253	AssertRC(rc2);
254	}
255
256	/* cleanup the heap. */
257	int rc2 = MMR3Term(pVM);
258	AssertRC(rc2);
259
260	/* free VM memory */
261	rc2 = SUPContFree(pVM);
262	AssertRC(rc2);
263	}
264	else
265	{
266	AssertMsgFailed(("Failed to allocate %d bytes of contiguous memory\n", RT_ALIGN(sizeof(*pVM), PAGE_SIZE)));
267	rc = VERR_NO_MEMORY;
268	}
269
270	/* terminate SUPLib */
271	int rc2 = SUPTerm(false);
272	AssertRC(rc2);
273	}
274	else
275	{
276	const char *pszError;
277	/*
278	* An error occurred at support library initialization time (before the
279	* VM could be created). Set the error message directly using the
280	* initial callback, as the callback list doesn't exist yet.
281	*/
282	switch (rc)
283	{
284	case VERR_VM_DRIVER_LOAD_ERROR:
285	pszError = N_("VirtualBox kernel driver not loaded");
286	break;
287	case VERR_VM_DRIVER_NOT_ACCESSIBLE:
288	pszError = N_("VirtualBox kernel driver not accessible, permission problem");
289	break;
290	case VERR_VM_DRIVER_NOT_INSTALLED:
291	pszError = N_("VirtualBox kernel driver not installed");
292	break;
293	case VERR_NO_MEMORY:
294	pszError = N_("VirtualBox support library out of memory");
295	break;
296	case VERR_VERSION_MISMATCH:
297	pszError = N_("VirtualBox support driver version mismatch");
298	break;
299	default:
300	pszError = N_("Unknown error initializing kernel driver (%Vrc)");
301	AssertMsgFailed(("Add error message for rc=%d (%Vrc)\n", rc, rc));
302	}
303	pfnVMAtError(NULL, pvUserVM, rc, RT_SRC_POS, pszError, (va_list)&rc); /** @todo r=bird: this isn't portable to AMD64, please fix. */
304	}
305
306	LogFlow(("VMR3Create: returns %Vrc\n", rc));
307	return rc;
308	}
309
310	/**
311	* Initializes the VM.
312	*/
313	static int vmR3Create(PVM pVM, PFNVMATERROR pfnVMAtError, void pvUserVM, PFNCFGMCONSTRUCTOR pfnCFGMConstructor, void pvUserCFGM)
314	{
315	int rc = VINF_SUCCESS;
316
317	/* Register error callback if specified. */
318	if (pfnVMAtError)
319	rc = VMR3AtErrorRegister(pVM, pfnVMAtError, pvUserVM);
320	if (VBOX_SUCCESS(rc))
321	{
322	/*
323	* Init the configuration.
324	*/
325	rc = CFGMR3Init(pVM, pfnCFGMConstructor, pvUserCFGM);
326	if (VBOX_SUCCESS(rc))
327	{
328	/*
329	* If executing in fake suplib mode disable RR3 and RR0 in the config.
330	*/
331	const char *psz = getenv("VBOX_SUPLIB_FAKE");
332	if (psz && !strcmp(psz, "fake"))
333	{
334	CFGMR3RemoveValue(CFGMR3GetRoot(pVM), "RawR3Enabled");
335	CFGMR3InsertInteger(CFGMR3GetRoot(pVM), "RawR3Enabled", 0);
336	CFGMR3RemoveValue(CFGMR3GetRoot(pVM), "RawR0Enabled");
337	CFGMR3InsertInteger(CFGMR3GetRoot(pVM), "RawR0Enabled", 0);
338	}
339
340	/*
341	* Check if the required minimum of resources are available.
342	*/
343	/** @todo Check if the required minimum of resources are available. */
344	if (VBOX_SUCCESS(rc))
345	{
346	#if defined(__AMD64__)
347	pVM->fCSAMEnabled = false;
348	pVM->fPATMEnabled = false;
349	#ifndef __WIN__
350	pVM->fRawR0Enabled = false;
351	pVM->fRawR3Enabled = false;
352	#endif
353	#endif
354
355	/*
356	* Init the Ring-3 components and do a round of relocations with 0 delta.
357	*/
358	rc = vmR3InitRing3(pVM);
359	if (VBOX_SUCCESS(rc))
360	{
361	VMR3Relocate(pVM, 0);
362	LogFlow(("Ring-3 init succeeded\n"));
363
364	/*
365	* Init the Ring-0 components.
366	*/
367	rc = vmR3InitRing0(pVM);
368	if (VBOX_SUCCESS(rc))
369	{
370	/* Relocate again, because some switcher fixups depends on R0 init results. */
371	VMR3Relocate(pVM, 0);
372
373	/*
374	* Init the tcp debugger console if we're building
375	* with debugger support.
376	*/
377	void *pvUser = NULL;
378	rc = DBGCTcpCreate(pVM, &pvUser);
379	if ( VBOX_SUCCESS(rc)
380	\|\| rc == VERR_NET_ADDRESS_IN_USE)
381	{
382	pVM->vm.s.pvDBGC = pvUser;
383
384	/*
385	* Init the Guest Context components.
386	*/
387	rc = vmR3InitGC(pVM);
388	if (VBOX_SUCCESS(rc))
389	{
390	/*
391	* Set the state and link into the global list.
392	*/
393	vmR3SetState(pVM, VMSTATE_CREATED);
394	pVM->pNext = g_pVMsHead;
395	g_pVMsHead = pVM;
396	return VINF_SUCCESS;
397	}
398	DBGCTcpTerminate(pVM, pVM->vm.s.pvDBGC);
399	pVM->vm.s.pvDBGC = NULL;
400	}
401	//..
402	}
403	//..
404	}
405	//..
406	}
407
408	/* Clean CFGM. */
409	int rc2 = CFGMR3Term(pVM);
410	AssertRC(rc2);
411	}
412	//..
413	}
414
415	LogFlow(("vmR3Create: returns %Vrc\n", rc));
416	return rc;
417	}
418
419
420
421	/**
422	* Initializes all R3 components of the VM
423	*/
424	static int vmR3InitRing3(PVM pVM)
425	{
426	int rc;
427
428	/*
429	* Init all R3 components, the order here might be important.
430	*/
431	rc = MMR3Init(pVM);
432	if (VBOX_SUCCESS(rc))
433	{
434	STAM_REG(pVM, &pVM->StatTotalInGC, STAMTYPE_PROFILE_ADV, "/PROF/VM/InGC", STAMUNIT_TICKS_PER_CALL, "Profiling the total time spent in GC.");
435	STAM_REG(pVM, &pVM->StatSwitcherToGC, STAMTYPE_PROFILE_ADV, "/PROF/VM/SwitchToGC", STAMUNIT_TICKS_PER_CALL, "Profiling switching to GC.");
436	STAM_REG(pVM, &pVM->StatSwitcherToHC, STAMTYPE_PROFILE_ADV, "/PROF/VM/SwitchToHC", STAMUNIT_TICKS_PER_CALL, "Profiling switching to HC.");
437	STAM_REG(pVM, &pVM->vm.s.StatHaltYield, STAMTYPE_PROFILE_ADV, "/PROF/VM/Halt/Yield", STAMUNIT_TICKS_PER_CALL, "Profiling halted state yielding.");
438	STAM_REG(pVM, &pVM->vm.s.StatHaltBlock, STAMTYPE_PROFILE_ADV, "/PROF/VM/Halt/Block", STAMUNIT_TICKS_PER_CALL, "Profiling halted state blocking.");
439	STAM_REG(pVM, &pVM->vm.s.StatHaltTimers, STAMTYPE_PROFILE_ADV, "/PROF/VM/Halt/Timers", STAMUNIT_TICKS_PER_CALL, "Profiling halted state timer tasks.");
440	STAM_REG(pVM, &pVM->vm.s.StatHaltPoll, STAMTYPE_PROFILE_ADV, "/PROF/VM/Halt/Poll", STAMUNIT_TICKS_PER_CALL, "Profiling halted state poll tasks.");
441
442	STAM_REG(pVM, &pVM->StatSwitcherSaveRegs, STAMTYPE_PROFILE_ADV, "/VM/Switcher/ToGC/SaveRegs", STAMUNIT_TICKS_PER_CALL,"Profiling switching to GC.");
443	STAM_REG(pVM, &pVM->StatSwitcherSysEnter, STAMTYPE_PROFILE_ADV, "/VM/Switcher/ToGC/SysEnter", STAMUNIT_TICKS_PER_CALL,"Profiling switching to GC.");
444	STAM_REG(pVM, &pVM->StatSwitcherDebug, STAMTYPE_PROFILE_ADV, "/VM/Switcher/ToGC/Debug", STAMUNIT_TICKS_PER_CALL,"Profiling switching to GC.");
445	STAM_REG(pVM, &pVM->StatSwitcherCR0, STAMTYPE_PROFILE_ADV, "/VM/Switcher/ToGC/CR0", STAMUNIT_TICKS_PER_CALL, "Profiling switching to GC.");
446	STAM_REG(pVM, &pVM->StatSwitcherCR4, STAMTYPE_PROFILE_ADV, "/VM/Switcher/ToGC/CR4", STAMUNIT_TICKS_PER_CALL, "Profiling switching to GC.");
447	STAM_REG(pVM, &pVM->StatSwitcherLgdt, STAMTYPE_PROFILE_ADV, "/VM/Switcher/ToGC/Lgdt", STAMUNIT_TICKS_PER_CALL, "Profiling switching to GC.");
448	STAM_REG(pVM, &pVM->StatSwitcherLidt, STAMTYPE_PROFILE_ADV, "/VM/Switcher/ToGC/Lidt", STAMUNIT_TICKS_PER_CALL, "Profiling switching to GC.");
449	STAM_REG(pVM, &pVM->StatSwitcherLldt, STAMTYPE_PROFILE_ADV, "/VM/Switcher/ToGC/Lldt", STAMUNIT_TICKS_PER_CALL, "Profiling switching to GC.");
450	STAM_REG(pVM, &pVM->StatSwitcherTSS, STAMTYPE_PROFILE_ADV, "/VM/Switcher/ToGC/TSS", STAMUNIT_TICKS_PER_CALL, "Profiling switching to GC.");
451	STAM_REG(pVM, &pVM->StatSwitcherJmpCR3, STAMTYPE_PROFILE_ADV, "/VM/Switcher/ToGC/JmpCR3", STAMUNIT_TICKS_PER_CALL,"Profiling switching to GC.");
452	STAM_REG(pVM, &pVM->StatSwitcherRstrRegs, STAMTYPE_PROFILE_ADV, "/VM/Switcher/ToGC/RstrRegs", STAMUNIT_TICKS_PER_CALL,"Profiling switching to GC.");
453
454	STAM_REG(pVM, &pVM->vm.s.StatReqAllocNew, STAMTYPE_COUNTER, "/VM/Req/AllocNew", STAMUNIT_OCCURENCES, "Number of VMR3ReqAlloc returning a new packet.");
455	STAM_REG(pVM, &pVM->vm.s.StatReqAllocRaces, STAMTYPE_COUNTER, "/VM/Req/AllocRaces", STAMUNIT_OCCURENCES, "Number of VMR3ReqAlloc causing races.");
456	STAM_REG(pVM, &pVM->vm.s.StatReqAllocRecycled, STAMTYPE_COUNTER, "/VM/Req/AllocRecycled", STAMUNIT_OCCURENCES, "Number of VMR3ReqAlloc returning a recycled packet.");
457	STAM_REG(pVM, &pVM->vm.s.StatReqFree, STAMTYPE_COUNTER, "/VM/Req/Free", STAMUNIT_OCCURENCES, "Number of VMR3ReqFree calls.");
458	STAM_REG(pVM, &pVM->vm.s.StatReqFreeOverflow, STAMTYPE_COUNTER, "/VM/Req/FreeOverflow", STAMUNIT_OCCURENCES, "Number of times the request was actually freed.");
459
460	rc = CPUMR3Init(pVM);
461	if (VBOX_SUCCESS(rc))
462	{
463	rc = HWACCMR3Init(pVM);
464	if (VBOX_SUCCESS(rc))
465	{
466	rc = PGMR3Init(pVM);
467	if (VBOX_SUCCESS(rc))
468	{
469	rc = REMR3Init(pVM);
470	if (VBOX_SUCCESS(rc))
471	{
472	rc = MMR3InitPaging(pVM);
473	if (VBOX_SUCCESS(rc))
474	rc = TMR3Init(pVM);
475	if (VBOX_SUCCESS(rc))
476	{
477	rc = VMMR3Init(pVM);
478	if (VBOX_SUCCESS(rc))
479	{
480	rc = SELMR3Init(pVM);
481	if (VBOX_SUCCESS(rc))
482	{
483	rc = TRPMR3Init(pVM);
484	if (VBOX_SUCCESS(rc))
485	{
486	rc = CSAMR3Init(pVM);
487	if (VBOX_SUCCESS(rc))
488	{
489	rc = PATMR3Init(pVM);
490	if (VBOX_SUCCESS(rc))
491	{
492	rc = IOMR3Init(pVM);
493	if (VBOX_SUCCESS(rc))
494	{
495	rc = EMR3Init(pVM);
496	if (VBOX_SUCCESS(rc))
497	{
498	rc = DBGFR3Init(pVM);
499	if (VBOX_SUCCESS(rc))
500	{
501	rc = PDMR3Init(pVM);
502	if (VBOX_SUCCESS(rc))
503	{
504	rc = PGMR3InitDynMap(pVM);
505	if (VBOX_SUCCESS(rc))
506	rc = MMR3HyperInitFinalize(pVM);
507	if (VBOX_SUCCESS(rc))
508	rc = PATMR3InitFinalize(pVM);
509	if (VBOX_SUCCESS(rc))
510	rc = PGMR3InitFinalize(pVM);
511	if (VBOX_SUCCESS(rc))
512	rc = SELMR3InitFinalize(pVM);
513	if (VBOX_SUCCESS(rc))
514	rc = VMMR3InitFinalize(pVM);
515	if (VBOX_SUCCESS(rc))
516	rc = vmR3InitDoCompleted(pVM, VMINITCOMPLETED_RING3);
517	if (VBOX_SUCCESS(rc))
518	{
519	LogFlow(("vmR3InitRing3: returns %Vrc\n", VINF_SUCCESS));
520	return VINF_SUCCESS;
521	}
522	int rc2 = PDMR3Term(pVM);
523	AssertRC(rc2);
524	}
525	int rc2 = DBGFR3Term(pVM);
526	AssertRC(rc2);
527	}
528	int rc2 = EMR3Term(pVM);
529	AssertRC(rc2);
530	}
531	int rc2 = IOMR3Term(pVM);
532	AssertRC(rc2);
533	}
534	int rc2 = PATMR3Term(pVM);
535	AssertRC(rc2);
536	}
537	int rc2 = CSAMR3Term(pVM);
538	AssertRC(rc2);
539	}
540	int rc2 = TRPMR3Term(pVM);
541	AssertRC(rc2);
542	}
543	int rc2 = SELMR3Term(pVM);
544	AssertRC(rc2);
545	}
546	int rc2 = VMMR3Term(pVM);
547	AssertRC(rc2);
548	}
549	int rc2 = TMR3Term(pVM);
550	AssertRC(rc2);
551	}
552	int rc2 = REMR3Term(pVM);
553	AssertRC(rc2);
554	}
555	int rc2 = PGMR3Term(pVM);
556	AssertRC(rc2);
557	}
558	int rc2 = HWACCMR3Term(pVM);
559	AssertRC(rc2);
560	}
561	//int rc2 = CPUMR3Term(pVM);
562	//AssertRC(rc2);
563	}
564	/* MMR3Term is not called here because it'll kill the heap. */
565	}
566
567	LogFlow(("vmR3InitRing3: returns %Vrc\n", rc));
568	return rc;
569	}
570
571
572	/**
573	* Initializes all R0 components of the VM
574	*/
575	static int vmR3InitRing0(PVM pVM)
576	{
577	LogFlow(("vmR3InitRing0:\n"));
578
579	/*
580	* Check for FAKE suplib mode.
581	*/
582	int rc = VINF_SUCCESS;
583	const char *psz = getenv("VBOX_SUPLIB_FAKE");
584	if (!psz \|\| strcmp(psz, "fake"))
585	{
586	/*
587	* Call the VMMR0 component and let it do the init.
588	*/
589	rc = VMMR3InitR0(pVM);
590	}
591	else
592	Log(("vmR3InitRing0: skipping because of VBOX_SUPLIB_FAKE=fake\n"));
593
594	/*
595	* Do notifications and return.
596	*/
597	if (VBOX_SUCCESS(rc))
598	rc = vmR3InitDoCompleted(pVM, VMINITCOMPLETED_RING0);
599	LogFlow(("vmR3InitRing0: returns %Vrc\n", rc));
600	return rc;
601	}
602
603
604	/**
605	* Initializes all GC components of the VM
606	*/
607	static int vmR3InitGC(PVM pVM)
608	{
609	LogFlow(("vmR3InitGC:\n"));
610
611	/*
612	* Check for FAKE suplib mode.
613	*/
614	int rc = VINF_SUCCESS;
615	const char *psz = getenv("VBOX_SUPLIB_FAKE");
616	if (!psz \|\| strcmp(psz, "fake"))
617	{
618	/*
619	* Call the VMMR0 component and let it do the init.
620	*/
621	rc = VMMR3InitGC(pVM);
622	}
623	else
624	Log(("vmR3InitGC: skipping because of VBOX_SUPLIB_FAKE=fake\n"));
625
626	/*
627	* Do notifications and return.
628	*/
629	if (VBOX_SUCCESS(rc))
630	rc = vmR3InitDoCompleted(pVM, VMINITCOMPLETED_GC);
631	LogFlow(("vmR3InitGC: returns %Vrc\n", rc));
632	return rc;
633	}
634
635
636	/**
637	* Do init completed notifications.
638	* This notifications can fail.
639	*
640	* @param pVM The VM handle.
641	* @param enmWhat What's completed.
642	*/
643	static int vmR3InitDoCompleted(PVM pVM, VMINITCOMPLETED enmWhat)
644	{
645
646	return VINF_SUCCESS;
647	}
648
649
650	/**
651	* Calls the relocation functions for all VMM components so they can update
652	* any GC pointers. When this function is called all the basic VM members
653	* have been updated and the actual memory relocation have been done
654	* by the PGM/MM.
655	*
656	* This is used both on init and on runtime relocations.
657	*
658	* @param pVM VM handle.
659	* @param offDelta Relocation delta relative to old location.
660	*/
661	VMR3DECL(void) VMR3Relocate(PVM pVM, RTGCINTPTR offDelta)
662	{
663	LogFlow(("VMR3Relocate: offDelta=%VGv\n", offDelta));
664
665	/*
666	* The order here is very important!
667	*/
668	PGMR3Relocate(pVM, offDelta);
669	PDMR3LdrRelocate(pVM, offDelta);
670	PGMR3Relocate(pVM, 0); /* Repeat after PDM relocation. */
671	CPUMR3Relocate(pVM);
672	HWACCMR3Relocate(pVM);
673	SELMR3Relocate(pVM);
674	VMMR3Relocate(pVM, offDelta);
675	SELMR3Relocate(pVM); /* !hack! fix stack! */
676	TRPMR3Relocate(pVM, offDelta);
677	PATMR3Relocate(pVM);
678	CSAMR3Relocate(pVM, offDelta);
679	IOMR3Relocate(pVM, offDelta);
680	EMR3Relocate(pVM);
681	TMR3Relocate(pVM, offDelta);
682	DBGFR3Relocate(pVM, offDelta);
683	PDMR3Relocate(pVM, offDelta);
684	}
685
686
687
688	/**
689	* Power on the virtual machine.
690	*
691	* @returns 0 on success.
692	* @returns VBox error code on failure.
693	* @param pVM VM to power on.
694	* @thread Any thread.
695	* @vmstate Created
696	* @vmstateto Running
697	*/
698	VMR3DECL(int) VMR3PowerOn(PVM pVM)
699	{
700	LogFlow(("VMR3PowerOn: pVM=%p\n", pVM));
701
702	/*
703	* Validate input.
704	*/
705	if (!pVM)
706	{
707	AssertMsgFailed(("Invalid VM pointer\n"));
708	return VERR_INVALID_PARAMETER;
709	}
710
711	/*
712	* Request the operation in EMT.
713	*/
714	PVMREQ pReq;
715	int rc = VMR3ReqCall(pVM, &pReq, RT_INDEFINITE_WAIT, (PFNRT)vmR3PowerOn, 1, pVM);
716	if (VBOX_SUCCESS(rc))
717	{
718	rc = pReq->iStatus;
719	VMR3ReqFree(pReq);
720	}
721
722	LogFlow(("VMR3PowerOn: returns %Vrc\n", rc));
723	return rc;
724	}
725
726
727	/**
728	* Power on the virtual machine.
729	*
730	* @returns 0 on success.
731	* @returns VBox error code on failure.
732	* @param pVM VM to power on.
733	* @thread EMT
734	*/
735	static DECLCALLBACK(int) vmR3PowerOn(PVM pVM)
736	{
737	LogFlow(("vmR3PowerOn: pVM=%p\n", pVM));
738
739	/*
740	* Validate input.
741	*/
742	if (pVM->enmVMState != VMSTATE_CREATED)
743	{
744	AssertMsgFailed(("Invalid VM state %d\n", pVM->enmVMState));
745	return VERR_VM_INVALID_VM_STATE;
746	}
747
748	/*
749	* Change the state, notify the components and resume the execution.
750	*/
751	vmR3SetState(pVM, VMSTATE_RUNNING);
752	PDMR3PowerOn(pVM);
753
754	return VINF_SUCCESS;
755	}
756
757
758	/**
759	* Suspends a running VM.
760	*
761	* @returns 0 on success.
762	* @returns VBox error code on failure.
763	* @param pVM VM to suspend.
764	* @thread Any thread.
765	* @vmstate Running
766	* @vmstateto Suspended
767	*/
768	VMR3DECL(int) VMR3Suspend(PVM pVM)
769	{
770	LogFlow(("VMR3Suspend: pVM=%p\n", pVM));
771
772	/*
773	* Validate input.
774	*/
775	if (!pVM)
776	{
777	AssertMsgFailed(("Invalid VM pointer\n"));
778	return VERR_INVALID_PARAMETER;
779	}
780
781	/*
782	* Request the operation in EMT.
783	*/
784	PVMREQ pReq;
785	int rc = VMR3ReqCall(pVM, &pReq, RT_INDEFINITE_WAIT, (PFNRT)vmR3Suspend, 1, pVM);
786	if (VBOX_SUCCESS(rc))
787	{
788	rc = pReq->iStatus;
789	VMR3ReqFree(pReq);
790	}
791
792	LogFlow(("VMR3Suspend: returns %Vrc\n", rc));
793	return rc;
794	}
795
796
797	/**
798	* Suspends a running VM.
799	*
800	* @returns 0 on success.
801	* @returns VBox error code on failure.
802	* @param pVM VM to suspend.
803	* @thread EMT
804	*/
805	static DECLCALLBACK(int) vmR3Suspend(PVM pVM)
806	{
807	LogFlow(("vmR3Suspend: pVM=%p\n", pVM));
808
809	/*
810	* Validate input.
811	*/
812	if (pVM->enmVMState != VMSTATE_RUNNING)
813	{
814	AssertMsgFailed(("Invalid VM state %d\n", pVM->enmVMState));
815	return VERR_VM_INVALID_VM_STATE;
816	}
817
818	/*
819	* Change the state, notify the components and resume the execution.
820	*/
821	vmR3SetState(pVM, VMSTATE_SUSPENDED);
822	PDMR3Suspend(pVM);
823
824	return VINF_EM_SUSPEND;
825	}
826
827
828	/**
829	* Resume VM execution.
830	*
831	* @returns 0 on success.
832	* @returns VBox error code on failure.
833	* @param pVM The VM to resume.
834	* @thread Any thread.
835	* @vmstate Suspended
836	* @vmstateto Running
837	*/
838	VMR3DECL(int) VMR3Resume(PVM pVM)
839	{
840	LogFlow(("VMR3Resume: pVM=%p\n", pVM));
841
842	/*
843	* Validate input.
844	*/
845	if (!pVM)
846	{
847	AssertMsgFailed(("Invalid VM pointer\n"));
848	return VERR_INVALID_PARAMETER;
849	}
850
851	/*
852	* Request the operation in EMT.
853	*/
854	PVMREQ pReq;
855	int rc = VMR3ReqCall(pVM, &pReq, RT_INDEFINITE_WAIT, (PFNRT)vmR3Resume, 1, pVM);
856	if (VBOX_SUCCESS(rc))
857	{
858	rc = pReq->iStatus;
859	VMR3ReqFree(pReq);
860	}
861
862	LogFlow(("VMR3Resume: returns %Vrc\n", rc));
863	return rc;
864	}
865
866
867	/**
868	* Resume VM execution.
869	*
870	* @returns 0 on success.
871	* @returns VBox error code on failure.
872	* @param pVM The VM to resume.
873	* @thread EMT
874	*/
875	static DECLCALLBACK(int) vmR3Resume(PVM pVM)
876	{
877	LogFlow(("vmR3Resume: pVM=%p\n", pVM));
878
879	/*
880	* Validate input.
881	*/
882	if (pVM->enmVMState != VMSTATE_SUSPENDED)
883	{
884	AssertMsgFailed(("Invalid VM state %d\n", pVM->enmVMState));
885	return VERR_VM_INVALID_VM_STATE;
886	}
887
888	/*
889	* Change the state, notify the components and resume the execution.
890	*/
891	vmR3SetState(pVM, VMSTATE_RUNNING);
892	PDMR3Resume(pVM);
893
894	return VINF_EM_RESUME;
895	}
896
897
898	/**
899	* Save current VM state.
900	*
901	* To save and terminate the VM, the VM must be suspended before the call.
902	*
903	* @returns 0 on success.
904	* @returns VBox error code on failure.
905	* @param pVM VM which state should be saved.
906	* @param pszFilename Name of the save state file.
907	* @param pfnProgress Progress callback. Optional.
908	* @param pvUser User argument for the progress callback.
909	* @thread Any thread.
910	* @vmstate Suspended
911	* @vmstateto Unchanged state.
912	*/
913	VMR3DECL(int) VMR3Save(PVM pVM, const char pszFilename, PFNVMPROGRESS pfnProgress, void pvUser)
914	{
915	LogFlow(("VMR3Save: pVM=%p pszFilename=%p:{%s} pfnProgress=%p pvUser=%p\n", pVM, pszFilename, pszFilename, pfnProgress, pvUser));
916
917	/*
918	* Validate input.
919	*/
920	if (!pVM)
921	{
922	AssertMsgFailed(("Invalid VM pointer\n"));
923	return VERR_INVALID_PARAMETER;
924	}
925	if (!pszFilename)
926	{
927	AssertMsgFailed(("Must specify a filename to save the state to, wise guy!\n"));
928	return VERR_INVALID_PARAMETER;
929	}
930
931	/*
932	* Request the operation in EMT.
933	*/
934	PVMREQ pReq;
935	int rc = VMR3ReqCall(pVM, &pReq, RT_INDEFINITE_WAIT, (PFNRT)vmR3Save, 4, pVM, pszFilename, pfnProgress, pvUser);
936	if (VBOX_SUCCESS(rc))
937	{
938	rc = pReq->iStatus;
939	VMR3ReqFree(pReq);
940	}
941
942	LogFlow(("VMR3Save: returns %Vrc\n", rc));
943	return rc;
944	}
945
946
947	/**
948	* Save current VM state.
949	*
950	* To save and terminate the VM, the VM must be suspended before the call.
951	*
952	* @returns 0 on success.
953	* @returns VBox error code on failure.
954	* @param pVM VM which state should be saved.
955	* @param pszFilename Name of the save state file.
956	* @param pfnProgress Progress callback. Optional.
957	* @param pvUser User argument for the progress callback.
958	* @thread EMT
959	*/
960	static DECLCALLBACK(int) vmR3Save(PVM pVM, const char pszFilename, PFNVMPROGRESS pfnProgress, void pvUser)
961	{
962	LogFlow(("vmR3Save: pVM=%p pszFilename=%p:{%s} pfnProgress=%p pvUser=%p\n", pVM, pszFilename, pszFilename, pfnProgress, pvUser));
963
964	/*
965	* Validate input.
966	*/
967	if (pVM->enmVMState != VMSTATE_SUSPENDED)
968	{
969	AssertMsgFailed(("Invalid VM state %d\n", pVM->enmVMState));
970	return VERR_VM_INVALID_VM_STATE;
971	}
972
973	/*
974	* Change the state and perform the save.
975	*/
976	/** @todo implement progress support in SSM */
977	vmR3SetState(pVM, VMSTATE_SAVING);
978	int rc = SSMR3Save(pVM, pszFilename, SSMAFTER_CONTINUE, pfnProgress, pvUser);
979	vmR3SetState(pVM, VMSTATE_SUSPENDED);
980
981	return rc;
982	}
983
984
985	/**
986	* Loads a new VM state.
987	*
988	* To restore a saved state on VM startup, call this function and then
989	* resume the VM instead of powering it on.
990	*
991	* @returns 0 on success.
992	* @returns VBox error code on failure.
993	* @param pVM VM which state should be saved.
994	* @param pszFilename Name of the save state file.
995	* @param pfnProgress Progress callback. Optional.
996	* @param pvUser User argument for the progress callback.
997	* @thread Any thread.
998	* @vmstate Created, Suspended
999	* @vmstateto Suspended
1000	*/
1001	VMR3DECL(int) VMR3Load(PVM pVM, const char pszFilename, PFNVMPROGRESS pfnProgress, void pvUser)
1002	{
1003	LogFlow(("VMR3Load: pVM=%p pszFilename=%p:{%s} pfnProgress=%p pvUser=%p\n", pVM, pszFilename, pszFilename, pfnProgress, pvUser));
1004
1005	/*
1006	* Validate input.
1007	*/
1008	if (!pVM)
1009	{
1010	AssertMsgFailed(("Invalid VM pointer\n"));
1011	return VERR_INVALID_PARAMETER;
1012	}
1013	if (!pszFilename)
1014	{
1015	AssertMsgFailed(("Must specify a filename to load the state from, wise guy!\n"));
1016	return VERR_INVALID_PARAMETER;
1017	}
1018
1019	/*
1020	* Request the operation in EMT.
1021	*/
1022	PVMREQ pReq;
1023	int rc = VMR3ReqCall(pVM, &pReq, RT_INDEFINITE_WAIT, (PFNRT)vmR3Load, 4, pVM, pszFilename, pfnProgress, pvUser);
1024	if (VBOX_SUCCESS(rc))
1025	{
1026	rc = pReq->iStatus;
1027	VMR3ReqFree(pReq);
1028	}
1029
1030	LogFlow(("VMR3Load: returns %Vrc\n", rc));
1031	return rc;
1032	}
1033
1034
1035	/**
1036	* Loads a new VM state.
1037	*
1038	* To restore a saved state on VM startup, call this function and then
1039	* resume the VM instead of powering it on.
1040	*
1041	* @returns 0 on success.
1042	* @returns VBox error code on failure.
1043	* @param pVM VM which state should be saved.
1044	* @param pszFilename Name of the save state file.
1045	* @param pfnProgress Progress callback. Optional.
1046	* @param pvUser User argument for the progress callback.
1047	* @thread EMT.
1048	*/
1049	static DECLCALLBACK(int) vmR3Load(PVM pVM, const char pszFilename, PFNVMPROGRESS pfnProgress, void pvUser)
1050	{
1051	LogFlow(("vmR3Load: pVM=%p pszFilename=%p:{%s} pfnProgress=%p pvUser=%p\n", pVM, pszFilename, pszFilename, pfnProgress, pvUser));
1052
1053	/*
1054	* Validate input.
1055	*/
1056	if ( pVM->enmVMState != VMSTATE_SUSPENDED
1057	&& pVM->enmVMState != VMSTATE_CREATED)
1058	{
1059	AssertMsgFailed(("Invalid VM state %d\n", pVM->enmVMState));
1060	return VMSetError(pVM, VERR_VM_INVALID_VM_STATE, RT_SRC_POS, N_("Invalid VM state (%s) for restoring state from '%s'"),
1061	VMR3GetStateName(pVM->enmVMState), pszFilename);
1062	}
1063
1064	/*
1065	* Change the state and perform the load.
1066	*/
1067	vmR3SetState(pVM, VMSTATE_LOADING);
1068	int rc = SSMR3Load(pVM, pszFilename, SSMAFTER_RESUME, pfnProgress, pvUser);
1069	if (VBOX_SUCCESS(rc))
1070	{
1071	VMR3Relocate(pVM, 0); /* paranoia */
1072	vmR3SetState(pVM, VMSTATE_SUSPENDED);
1073	}
1074	else
1075	{
1076	vmR3SetState(pVM, VMSTATE_LOAD_FAILURE);
1077	rc = VMSetError(pVM, rc, RT_SRC_POS, N_("Failed to restore VM state from '%s' (%Vrc)"), pszFilename, rc);
1078	}
1079
1080	return rc;
1081	}
1082
1083
1084	/**
1085	* Power Off the VM.
1086	*
1087	* @returns 0 on success.
1088	* @returns VBox error code on failure.
1089	* @param pVM VM which should be destroyed.
1090	* @thread Any thread.
1091	* @vmstate Suspended, Running, Guru Mediation, Load Failure
1092	* @vmstateto Off
1093	*/
1094	VMR3DECL(int) VMR3PowerOff(PVM pVM)
1095	{
1096	LogFlow(("VMR3PowerOff: pVM=%p\n", pVM));
1097
1098	/*
1099	* Validate input.
1100	*/
1101	if (!pVM)
1102	{
1103	AssertMsgFailed(("Invalid VM pointer\n"));
1104	return VERR_INVALID_PARAMETER;
1105	}
1106
1107	/*
1108	* Request the operation in EMT.
1109	*/
1110	PVMREQ pReq;
1111	int rc = VMR3ReqCall(pVM, &pReq, RT_INDEFINITE_WAIT, (PFNRT)vmR3PowerOff, 1, pVM);
1112	if (VBOX_SUCCESS(rc))
1113	{
1114	rc = pReq->iStatus;
1115	VMR3ReqFree(pReq);
1116	}
1117
1118	LogFlow(("VMR3PowerOff: returns %Vrc\n", rc));
1119	return rc;
1120	}
1121
1122
1123	/**
1124	* Power Off the VM.
1125	*
1126	* @returns 0 on success.
1127	* @returns VBox error code on failure.
1128	* @param pVM VM which should be destroyed.
1129	* @thread EMT.
1130	*/
1131	static DECLCALLBACK(int) vmR3PowerOff(PVM pVM)
1132	{
1133	LogFlow(("vmR3PowerOff: pVM=%p\n", pVM));
1134
1135	/*
1136	* Validate input.
1137	*/
1138	if ( pVM->enmVMState != VMSTATE_RUNNING
1139	&& pVM->enmVMState != VMSTATE_SUSPENDED
1140	&& pVM->enmVMState != VMSTATE_LOAD_FAILURE
1141	&& pVM->enmVMState != VMSTATE_GURU_MEDITATION)
1142	{
1143	AssertMsgFailed(("Invalid VM state %d\n", pVM->enmVMState));
1144	return VERR_VM_INVALID_VM_STATE;
1145	}
1146
1147	/*
1148	* For debugging purposes, we will log a summary of the guest state at this point.
1149	*/
1150	if (pVM->enmVMState != VMSTATE_GURU_MEDITATION)
1151	{
1152	/** @todo make the state dumping at VMR3PowerOff optional. */
1153	RTLogRelPrintf("**************** Guest state at power off ****************\n");
1154	DBGFR3Info(pVM, "cpumguest", "verbose", DBGFR3InfoLogRelHlp());
1155	RTLogRelPrintf("***\n");
1156	DBGFR3Info(pVM, "mode", NULL, DBGFR3InfoLogRelHlp());
1157	RTLogRelPrintf("***\n");
1158	DBGFR3Info(pVM, "activetimers", NULL, DBGFR3InfoLogRelHlp());
1159	RTLogRelPrintf("***\n");
1160	DBGFR3Info(pVM, "gdt", NULL, DBGFR3InfoLogRelHlp());
1161	/** @todo dump guest call stack. */
1162	#if 1 // temporary while debugging #1589
1163	RTLogRelPrintf("***\n");
1164	DBGFR3Info(pVM, "pit", NULL, DBGFR3InfoLogRelHlp());
1165	//RTLogRelPrintf("***\n");
1166	//DBGFR3Info(pVM, "handlers", NULL, DBGFR3InfoLogRelHlp());
1167	uint32_t esp = CPUMGetGuestESP(pVM);
1168	if ( CPUMGetGuestSS(pVM) == 0
1169	&& esp < _64K)
1170	{
1171	RTLogRelPrintf("***\n"
1172	"ss:sp=0000:%04x ", esp);
1173	void *pv;
1174	int rc = PGMPhysGCPtr2HCPtr(pVM, esp, &pv);
1175	if (VBOX_SUCCESS(rc))
1176	{
1177	const uint8_t pb = (uint8_t )((uintptr_t)pv & ~(uintptr_t)0x3f);
1178	RTLogRelPrintf("pb=%p pv=%p\n"
1179	"%.*Rhxd\n", pb, pv,
1180	PAGE_SIZE - ((uintptr_t)pb & PAGE_OFFSET_MASK), pb);
1181	}
1182	else
1183	RTLogRelPrintf("rc=%Vrc\n", rc);
1184	/* grub ... */
1185	if (esp < 0x2000 && esp > 0x1fc0)
1186	{
1187	int rc = PGMPhysGCPtr2HCPtr(pVM, 0x8000, &pv);
1188	if (VBOX_SUCCESS(rc))
1189	RTLogRelPrintf("0000:8000 TO 0000:87ff: pv=%p\n"
1190	"%.*Rhxd\n", pv, 0x8000, pv);
1191	}
1192	/* microsoft cdrom hang ... */
1193	if (true)
1194	{
1195	int rc = PGMPhysGCPtr2HCPtr(pVM, 0x20000, &pv);
1196	if (VBOX_SUCCESS(rc))
1197	RTLogRelPrintf("2000:0000 TO 2000:01ff: pv=%p\n"
1198	"%.*Rhxd\n", pv, 0x200, pv);
1199	}
1200	}
1201	#endif
1202	RTLogRelPrintf("************ End of Guest state at power off *************\n");
1203	}
1204
1205	/*
1206	* Change the state to OFF and notify the components.
1207	*/
1208	vmR3SetState(pVM, VMSTATE_OFF);
1209	PDMR3PowerOff(pVM);
1210
1211	return VINF_EM_OFF;
1212	}
1213
1214
1215	/**
1216	* Destroys the VM.
1217	* The VM must be powered off (or never really powered on) to call this function.
1218	* The VM handle is destroyed and can no longer be used up successful return.
1219	*
1220	* @returns 0 on success.
1221	* @returns VBox error code on failure.
1222	* @param pVM VM which should be destroyed.
1223	* @thread Any thread but the emulation thread.
1224	* @vmstate Off, Created
1225	* @vmstateto N/A
1226	*/
1227	VMR3DECL(int) VMR3Destroy(PVM pVM)
1228	{
1229	LogFlow(("VMR3Destroy: pVM=%p\n", pVM));
1230
1231	/*
1232	* Validate input.
1233	*/
1234	if (!pVM)
1235	return VERR_INVALID_PARAMETER;
1236	if ( pVM->enmVMState != VMSTATE_OFF
1237	&& pVM->enmVMState != VMSTATE_CREATED)
1238	{
1239	AssertMsgFailed(("Invalid VM state %d\n", pVM->enmVMState));
1240	return VERR_VM_INVALID_VM_STATE;
1241	}
1242
1243	/*
1244	* Unlink the VM and change it's state to destroying.
1245	*/
1246	/** @todo lock this when we start having multiple machines in a process... */
1247	PVM pPrev = NULL;
1248	PVM pCur = g_pVMsHead;
1249	while (pCur && pCur != pVM)
1250	{
1251	pPrev = pCur;
1252	pCur = pCur->pNext;
1253	}
1254	if (!pCur)
1255	{
1256	AssertMsgFailed(("pVM=%p is INVALID!\n", pVM));
1257	return VERR_INVALID_PARAMETER;
1258	}
1259	if (pPrev)
1260	pPrev->pNext = pCur->pNext;
1261	else
1262	g_pVMsHead = pCur->pNext;
1263
1264	vmR3SetState(pVM, VMSTATE_DESTROYING);
1265
1266
1267	/*
1268	* Notify registered at destruction listeners.
1269	* (That's the debugger console.)
1270	*/
1271	vmR3AtDtor(pVM);
1272
1273	pVM->pNext = g_pVMsHead;
1274	g_pVMsHead = pVM;
1275
1276	/*
1277	* If we are the EMT we'll delay the cleanup till later.
1278	*/
1279	if (VM_IS_EMT(pVM))
1280	{
1281	pVM->vm.s.fEMTDoesTheCleanup = true;
1282	VM_FF_SET(pVM, VM_FF_TERMINATE);
1283	}
1284	else
1285	{
1286	/*
1287	* Request EMT to do the larger part of the destruction.
1288	*/
1289	PVMREQ pReq = NULL;
1290	int rc = VMR3ReqCall(pVM, &pReq, 0, (PFNRT)vmR3Destroy, 1, pVM);
1291	while (rc == VERR_TIMEOUT)
1292	rc = VMR3ReqWait(pReq, RT_INDEFINITE_WAIT);
1293	if (VBOX_SUCCESS(rc))
1294	rc = pReq->iStatus;
1295	VMR3ReqFree(pReq);
1296
1297	/*
1298	* Wait for the EMT thread to terminate.
1299	*/
1300	VM_FF_SET(pVM, VM_FF_TERMINATE);
1301	uint64_t u64Start = RTTimeMilliTS();
1302	do
1303	{
1304	VMR3NotifyFF(pVM, false);
1305	rc = RTThreadWait(pVM->ThreadEMT, 1000, NULL);
1306	} while ( RTTimeMilliTS() - u64Start < 30000 /* 30 sec */
1307	&& rc == VERR_TIMEOUT);
1308	AssertMsgRC(rc, ("EMT thread wait failed, rc=%Vrc\n", rc));
1309
1310	/*
1311	* Now do the final bit where the heap and VM structures are freed up.
1312	*/
1313	vmR3DestroyFinalBit(pVM);
1314	}
1315
1316	LogFlow(("VMR3Destroy: returns VINF_SUCCESS\n"));
1317	return VINF_SUCCESS;
1318	}
1319
1320
1321	/**
1322	* Internal destruction worker. This will do nearly all of the
1323	* job, including quitting the emulation thread.
1324	*
1325	* @returns VBox status.
1326	* @param pVM VM handle.
1327	*/
1328	DECLCALLBACK(int) vmR3Destroy(PVM pVM)
1329	{
1330	LogFlow(("vmR3Destroy: pVM=%p\n", pVM));
1331	VM_ASSERT_EMT(pVM);
1332
1333	/*
1334	* Dump statistics to the log.
1335	*/
1336	#if defined(VBOX_WITH_STATISTICS) \|\| defined(LOG_ENABLED)
1337	RTLogFlags(NULL, "nodisabled nobuffered");
1338	#endif
1339	#ifdef VBOX_WITH_STATISTICS
1340	STAMR3Dump(pVM, "*");
1341	#endif /* VBOX_WITH_STATISTICS */
1342
1343	/*
1344	* Destroy the VM components.
1345	*/
1346	int rc = TMR3Term(pVM);
1347	AssertRC(rc);
1348	rc = DBGCTcpTerminate(pVM, pVM->vm.s.pvDBGC);
1349	pVM->vm.s.pvDBGC = NULL;
1350	AssertRC(rc);
1351	rc = DBGFR3Term(pVM);
1352	AssertRC(rc);
1353	rc = PDMR3Term(pVM);
1354	AssertRC(rc);
1355	rc = EMR3Term(pVM);
1356	AssertRC(rc);
1357	rc = IOMR3Term(pVM);
1358	AssertRC(rc);
1359	rc = CSAMR3Term(pVM);
1360	AssertRC(rc);
1361	rc = PATMR3Term(pVM);
1362	AssertRC(rc);
1363	rc = TRPMR3Term(pVM);
1364	AssertRC(rc);
1365	rc = SELMR3Term(pVM);
1366	AssertRC(rc);
1367	rc = REMR3Term(pVM);
1368	AssertRC(rc);
1369	rc = HWACCMR3Term(pVM);
1370	AssertRC(rc);
1371	rc = VMMR3Term(pVM);
1372	AssertRC(rc);
1373	rc = PGMR3Term(pVM);
1374	AssertRC(rc);
1375	rc = CPUMR3Term(pVM);
1376	AssertRC(rc);
1377	rc = STAMR3Term(pVM);
1378	AssertRC(rc);
1379	rc = PDMR3CritSectTerm(pVM);
1380	AssertRC(rc);
1381	/* MM is destroyed later in vmR3DestroyFinalBit() for heap reasons. */
1382
1383	/*
1384	* We're done in this thread.
1385	*/
1386	pVM->fForcedActions = VM_FF_TERMINATE;
1387	LogFlow(("vmR3Destroy: returning %Vrc\n", VINF_EM_TERMINATE));
1388	return VINF_EM_TERMINATE;
1389	}
1390
1391
1392	/**
1393	* Does the final part of the VM destruction.
1394	* This is called by EMT in it's final stage or by the VMR3Destroy caller.
1395	*
1396	* @param pVM VM Handle.
1397	*/
1398	void vmR3DestroyFinalBit(PVM pVM)
1399	{
1400	/*
1401	* Free the event semaphores associated with the request packets.s
1402	*/
1403	unsigned cReqs = 0;
1404	for (unsigned i = 0; i < ELEMENTS(pVM->vm.s.apReqFree); i++)
1405	{
1406	PVMREQ pReq = pVM->vm.s.apReqFree[i];
1407	pVM->vm.s.apReqFree[i] = NULL;
1408	for (; pReq; pReq = pReq->pNext, cReqs++)
1409	{
1410	pReq->enmState = VMREQSTATE_INVALID;
1411	RTSemEventDestroy(pReq->EventSem);
1412	}
1413	}
1414	Assert(cReqs == pVM->vm.s.cReqFree); NOREF(cReqs);
1415
1416	/*
1417	* Kill all queued requests. (There really shouldn't be any!)
1418	*/
1419	for (unsigned i = 0; i < 10; i++)
1420	{
1421	PVMREQ pReqHead = (PVMREQ)ASMAtomicXchgPtr((void volatile )&pVM->vm.s.pReqs, NULL);
1422	AssertMsg(!pReqHead, ("This isn't supposed to happen! VMR3Destroy caller has to serialize this.\n"));
1423	if (!pReqHead)
1424	break;
1425	for (PVMREQ pReq = pReqHead; pReq; pReq = pReq->pNext)
1426	{
1427	ASMAtomicXchgSize(&pReq->iStatus, VERR_INTERNAL_ERROR);
1428	ASMAtomicXchgSize(&pReq->enmState, VMREQSTATE_INVALID);
1429	RTSemEventSignal(pReq->EventSem);
1430	RTThreadSleep(2);
1431	RTSemEventDestroy(pReq->EventSem);
1432	}
1433	/* give them a chance to respond before we free the request memory. */
1434	RTThreadSleep(32);
1435	}
1436
1437	/*
1438	* Modify state and then terminate MM.
1439	* (MM must be delayed until this point so we don't destroy the callbacks and the request packet.)
1440	*/
1441	vmR3SetState(pVM, VMSTATE_TERMINATED);
1442	int rc = MMR3Term(pVM);
1443	AssertRC(rc);
1444
1445	/*
1446	* Free the VM structure.
1447	*/
1448	rc = SUPContFree(pVM);
1449	AssertRC(rc);
1450	rc = SUPTerm();
1451	AssertRC(rc);
1452
1453	RTLogFlush(NULL);
1454	}
1455
1456
1457	/**
1458	* Enumerates the VMs in this process.
1459	*
1460	* @returns Pointer to the next VM.
1461	* @returns NULL when no more VMs.
1462	* @param pVMPrev The previous VM
1463	* Use NULL to start the enumeration.
1464	*/
1465	VMR3DECL(PVM) VMR3EnumVMs(PVM pVMPrev)
1466	{
1467	/*
1468	* This is quick and dirty. It has issues with VM being
1469	* destroyed during the enumeration.
1470	*/
1471	if (pVMPrev)
1472	return pVMPrev->pNext;
1473	return g_pVMsHead;
1474	}
1475
1476
1477	/**
1478	* Registers an at VM destruction callback.
1479	*
1480	* @returns VBox status code.
1481	* @param pfnAtDtor Pointer to callback.
1482	* @param pvUser User argument.
1483	*/
1484	VMR3DECL(int) VMR3AtDtorRegister(PFNVMATDTOR pfnAtDtor, void *pvUser)
1485	{
1486	/*
1487	* Check if already registered.
1488	*/
1489	VM_ATDTOR_LOCK();
1490	PVMATDTOR pCur = g_pVMAtDtorHead;
1491	while (pCur)
1492	{
1493	if (pfnAtDtor == pCur->pfnAtDtor)
1494	{
1495	VM_ATDTOR_UNLOCK();
1496	AssertMsgFailed(("Already registered at destruction callback %p!\n", pfnAtDtor));
1497	return VERR_INVALID_PARAMETER;
1498	}
1499
1500	/* next */
1501	pCur = pCur->pNext;
1502	}
1503	VM_ATDTOR_UNLOCK();
1504
1505	/*
1506	* Allocate new entry.
1507	*/
1508	PVMATDTOR pVMAtDtor = (PVMATDTOR)RTMemAlloc(sizeof(*pVMAtDtor));
1509	if (!pVMAtDtor)
1510	return VERR_NO_MEMORY;
1511
1512	VM_ATDTOR_LOCK();
1513	pVMAtDtor->pfnAtDtor = pfnAtDtor;
1514	pVMAtDtor->pvUser = pvUser;
1515	pVMAtDtor->pNext = g_pVMAtDtorHead;
1516	g_pVMAtDtorHead = pVMAtDtor;
1517	VM_ATDTOR_UNLOCK();
1518
1519	return VINF_SUCCESS;
1520	}
1521
1522
1523	/**
1524	* Deregisters an at VM destruction callback.
1525	*
1526	* @returns VBox status code.
1527	* @param pfnAtDtor Pointer to callback.
1528	*/
1529	VMR3DECL(int) VMR3AtDtorDeregister(PFNVMATDTOR pfnAtDtor)
1530	{
1531	/*
1532	* Find it, unlink it and free it.
1533	*/
1534	VM_ATDTOR_LOCK();
1535	PVMATDTOR pPrev = NULL;
1536	PVMATDTOR pCur = g_pVMAtDtorHead;
1537	while (pCur)
1538	{
1539	if (pfnAtDtor == pCur->pfnAtDtor)
1540	{
1541	if (pPrev)
1542	pPrev->pNext = pCur->pNext;
1543	else
1544	g_pVMAtDtorHead = pCur->pNext;
1545	pCur->pNext = NULL;
1546	VM_ATDTOR_UNLOCK();
1547
1548	RTMemFree(pCur);
1549	return VINF_SUCCESS;
1550	}
1551
1552	/* next */
1553	pPrev = pCur;
1554	pCur = pCur->pNext;
1555	}
1556	VM_ATDTOR_UNLOCK();
1557
1558	return VERR_INVALID_PARAMETER;
1559	}
1560
1561
1562	/**
1563	* Walks the list of at VM destructor callbacks.
1564	* @param pVM The VM which is about to be destroyed.
1565	*/
1566	static void vmR3AtDtor(PVM pVM)
1567	{
1568	/*
1569	* Find it, unlink it and free it.
1570	*/
1571	VM_ATDTOR_LOCK();
1572	for (PVMATDTOR pCur = g_pVMAtDtorHead; pCur; pCur = pCur->pNext)
1573	pCur->pfnAtDtor(pVM, pCur->pvUser);
1574	VM_ATDTOR_UNLOCK();
1575	}
1576
1577
1578	/**
1579	* Reset the current VM.
1580	*
1581	* @returns VBox status code.
1582	* @param pVM VM to reset.
1583	*/
1584	VMR3DECL(int) VMR3Reset(PVM pVM)
1585	{
1586	int rc = VINF_SUCCESS;
1587
1588	/*
1589	* Check the state.
1590	*/
1591	if (!pVM)
1592	return VERR_INVALID_PARAMETER;
1593	if ( pVM->enmVMState != VMSTATE_RUNNING
1594	&& pVM->enmVMState != VMSTATE_SUSPENDED)
1595	{
1596	AssertMsgFailed(("Invalid VM state %d\n", pVM->enmVMState));
1597	return VERR_VM_INVALID_VM_STATE;
1598	}
1599
1600	/*
1601	* Queue reset request to the emulation thread
1602	* and wait for it to be processed.
1603	*/
1604	PVMREQ pReq = NULL;
1605	rc = VMR3ReqCall(pVM, &pReq, 0, (PFNRT)vmR3Reset, 1, pVM);
1606	while (rc == VERR_TIMEOUT)
1607	rc = VMR3ReqWait(pReq, RT_INDEFINITE_WAIT);
1608	if (VBOX_SUCCESS(rc))
1609	rc = pReq->iStatus;
1610	VMR3ReqFree(pReq);
1611
1612	return rc;
1613	}
1614
1615
1616	/**
1617	* Worker which checks integrity of some internal structures.
1618	* This is yet another attempt to track down that AVL tree crash.
1619	*/
1620	static void vmR3CheckIntegrity(PVM pVM)
1621	{
1622	#ifdef VBOX_STRICT
1623	int rc = PGMR3CheckIntegrity(pVM);
1624	AssertReleaseRC(rc);
1625	#endif
1626	}
1627
1628
1629	/**
1630	* Reset request processor.
1631	*
1632	* This is called by the emulation thread as a response to the
1633	* reset request issued by VMR3Reset().
1634	*
1635	* @returns VBox status code.
1636	* @param pVM VM to reset.
1637	*/
1638	static DECLCALLBACK(int) vmR3Reset(PVM pVM)
1639	{
1640	/*
1641	* As a safety precaution we temporarily change the state while resetting.
1642	* (If VMR3Reset was not called from EMT we might have change state... let's ignore that fact for now.)
1643	*/
1644	VMSTATE enmVMState = pVM->enmVMState;
1645	Assert(enmVMState == VMSTATE_SUSPENDED \|\| enmVMState == VMSTATE_RUNNING);
1646	vmR3SetState(pVM, VMSTATE_RESETTING);
1647	vmR3CheckIntegrity(pVM);
1648
1649
1650	/*
1651	* Reset the VM components.
1652	*/
1653	PATMR3Reset(pVM);
1654	CSAMR3Reset(pVM);
1655	PGMR3Reset(pVM); /* We clear VM RAM in PGMR3Reset. It's vital PDMR3Reset is executed
1656	* _afterwards_. E.g. ACPI sets up RAM tables during init/reset. */
1657	PDMR3Reset(pVM);
1658	SELMR3Reset(pVM);
1659	TRPMR3Reset(pVM);
1660	vmR3AtReset(pVM);
1661	REMR3Reset(pVM);
1662	IOMR3Reset(pVM);
1663	CPUMR3Reset(pVM);
1664	TMR3Reset(pVM);
1665	EMR3Reset(pVM);
1666	HWACCMR3Reset(pVM); /* This must come after PATM, CSAM, CPUM, SELM and TRPM. */
1667
1668	#ifdef LOG_ENABLED
1669	/*
1670	* Debug logging.
1671	*/
1672	RTLogPrintf("\n\nThe VM was reset:\n");
1673	DBGFR3Info(pVM, "cpum", "verbose", NULL);
1674	#endif
1675
1676	/*
1677	* Restore the state.
1678	*/
1679	vmR3CheckIntegrity(pVM);
1680	Assert(pVM->enmVMState == VMSTATE_RESETTING);
1681	vmR3SetState(pVM, enmVMState);
1682
1683	#if defined(__AMD64__)
1684	pVM->fCSAMEnabled = false;
1685	pVM->fPATMEnabled = false;
1686	#ifndef __WIN__
1687	pVM->fRawR0Enabled = false;
1688	pVM->fRawR3Enabled = false;
1689	#endif
1690	#endif
1691	return VINF_EM_RESET;
1692	}
1693
1694
1695	/**
1696	* Walks the list of at VM reset callbacks and calls them
1697	*
1698	* @returns VBox status code.
1699	* Any failure is fatal.
1700	* @param pVM The VM which is being reset.
1701	*/
1702	static int vmR3AtReset(PVM pVM)
1703	{
1704	/*
1705	* Walk the list and call them all.
1706	*/
1707	int rc = VINF_SUCCESS;
1708	for (PVMATRESET pCur = pVM->vm.s.pAtReset; pCur; pCur = pCur->pNext)
1709	{
1710	/* do the call */
1711	switch (pCur->enmType)
1712	{
1713	case VMATRESETTYPE_DEV:
1714	rc = pCur->u.Dev.pfnCallback(pCur->u.Dev.pDevIns, pCur->pvUser);
1715	break;
1716	case VMATRESETTYPE_INTERNAL:
1717	rc = pCur->u.Internal.pfnCallback(pVM, pCur->pvUser);
1718	break;
1719	case VMATRESETTYPE_EXTERNAL:
1720	pCur->u.External.pfnCallback(pCur->pvUser);
1721	break;
1722	default:
1723	AssertMsgFailed(("Invalid at-reset type %d!\n", pCur->enmType));
1724	return VERR_INTERNAL_ERROR;
1725	}
1726
1727	if (VBOX_FAILURE(rc))
1728	{
1729	AssertMsgFailed(("At-reset handler %s failed with rc=%d\n", pCur->pszDesc, rc));
1730	return rc;
1731	}
1732	}
1733
1734	return VINF_SUCCESS;
1735	}
1736
1737
1738	/**
1739	* Internal registration function
1740	*/
1741	static int vmr3AtResetRegister(PVM pVM, void pvUser, const char pszDesc, PVMATRESET *ppNew)
1742	{
1743	/*
1744	* Allocate restration structure.
1745	*/
1746	PVMATRESET pNew = (PVMATRESET)MMR3HeapAlloc(pVM, MM_TAG_VM, sizeof(*pNew));
1747	if (pNew)
1748	{
1749	/* fill data. */
1750	pNew->pNext = NULL;
1751	pNew->pszDesc = pszDesc;
1752	pNew->pvUser = pvUser;
1753
1754	/* insert */
1755	*pVM->vm.s.ppAtResetNext = pNew;
1756	pVM->vm.s.ppAtResetNext = &pNew->pNext;
1757
1758	return VINF_SUCCESS;
1759	}
1760	return VERR_NO_MEMORY;
1761	}
1762
1763
1764	/**
1765	* Registers an at VM reset callback.
1766	*
1767	* @returns VBox status code.
1768	* @param pVM The VM.
1769	* @param pDevInst Device instance.
1770	* @param pfnCallback Callback function.
1771	* @param pvUser User argument.
1772	* @param pszDesc Description (optional).
1773	*/
1774	VMR3DECL(int) VMR3AtResetRegister(PVM pVM, PPDMDEVINS pDevInst, PFNVMATRESET pfnCallback, void pvUser, const char pszDesc)
1775	{
1776	/*
1777	* Validate.
1778	*/
1779	if (!pDevInst)
1780	{
1781	AssertMsgFailed(("pDevIns is NULL!\n"));
1782	return VERR_INVALID_PARAMETER;
1783	}
1784
1785	/*
1786	* Create the new entry.
1787	*/
1788	PVMATRESET pNew;
1789	int rc = vmr3AtResetRegister(pVM, pvUser, pszDesc, &pNew);
1790	if (VBOX_SUCCESS(rc))
1791	{
1792	/*
1793	* Fill in type data.
1794	*/
1795	pNew->enmType = VMATRESETTYPE_DEV;
1796	pNew->u.Dev.pfnCallback = pfnCallback;
1797	pNew->u.Dev.pDevIns = pDevInst;
1798	}
1799
1800	return rc;
1801	}
1802
1803
1804	/**
1805	* Registers an at VM reset internal callback.
1806	*
1807	* @returns VBox status code.
1808	* @param pVM The VM.
1809	* @param pfnCallback Callback function.
1810	* @param pvUser User argument.
1811	* @param pszDesc Description (optional).
1812	*/
1813	VMR3DECL(int) VMR3AtResetRegisterInternal(PVM pVM, PFNVMATRESETINT pfnCallback, void pvUser, const char pszDesc)
1814	{
1815	/*
1816	* Validate.
1817	*/
1818	if (!pfnCallback)
1819	{
1820	AssertMsgFailed(("pfnCallback is NULL!\n"));
1821	return VERR_INVALID_PARAMETER;
1822	}
1823
1824	/*
1825	* Create the new entry.
1826	*/
1827	PVMATRESET pNew;
1828	int rc = vmr3AtResetRegister(pVM, pvUser, pszDesc, &pNew);
1829	if (VBOX_SUCCESS(rc))
1830	{
1831	/*
1832	* Fill in type data.
1833	*/
1834	pNew->enmType = VMATRESETTYPE_INTERNAL;
1835	pNew->u.Internal.pfnCallback = pfnCallback;
1836	}
1837
1838	return rc;
1839	}
1840
1841
1842	/**
1843	* Registers an at VM reset external callback.
1844	*
1845	* @returns VBox status code.
1846	* @param pVM The VM.
1847	* @param pfnCallback Callback function.
1848	* @param pvUser User argument.
1849	* @param pszDesc Description (optional).
1850	*/
1851	VMR3DECL(int) VMR3AtResetRegisterExternal(PVM pVM, PFNVMATRESETEXT pfnCallback, void pvUser, const char pszDesc)
1852	{
1853	/*
1854	* Validate.
1855	*/
1856	if (!pfnCallback)
1857	{
1858	AssertMsgFailed(("pfnCallback is NULL!\n"));
1859	return VERR_INVALID_PARAMETER;
1860	}
1861
1862	/*
1863	* Create the new entry.
1864	*/
1865	PVMATRESET pNew;
1866	int rc = vmr3AtResetRegister(pVM, pvUser, pszDesc, &pNew);
1867	if (VBOX_SUCCESS(rc))
1868	{
1869	/*
1870	* Fill in type data.
1871	*/
1872	pNew->enmType = VMATRESETTYPE_EXTERNAL;
1873	pNew->u.External.pfnCallback = pfnCallback;
1874	}
1875
1876	return rc;
1877	}
1878
1879
1880	/**
1881	* Unlinks and frees a callback.
1882	*
1883	* @returns Pointer to the next callback structure.
1884	* @param pVM The VM.
1885	* @param pCur The one to free.
1886	* @param pPrev The one before pCur.
1887	*/
1888	static PVMATRESET vmr3AtResetFree(PVM pVM, PVMATRESET pCur, PVMATRESET pPrev)
1889	{
1890	/*
1891	* Unlink it.
1892	*/
1893	PVMATRESET pNext = pCur->pNext;
1894	if (pPrev)
1895	{
1896	pPrev->pNext = pNext;
1897	if (!pNext)
1898	pVM->vm.s.ppAtResetNext = &pPrev->pNext;
1899	}
1900	else
1901	{
1902	pVM->vm.s.pAtReset = pNext;
1903	if (!pNext)
1904	pVM->vm.s.ppAtResetNext = &pVM->vm.s.pAtReset;
1905	}
1906
1907	/*
1908	* Free it.
1909	*/
1910	MMR3HeapFree(pCur);
1911
1912	return pNext;
1913	}
1914
1915
1916	/**
1917	* Deregisters an at VM reset callback.
1918	*
1919	* @returns VBox status code.
1920	* @param pVM The VM.
1921	* @param pDevInst Device instance.
1922	* @param pfnCallback Callback function.
1923	*/
1924	VMR3DECL(int) VMR3AtResetDeregister(PVM pVM, PPDMDEVINS pDevInst, PFNVMATRESET pfnCallback)
1925	{
1926	int rc = VERR_VM_ATRESET_NOT_FOUND;
1927	PVMATRESET pPrev = NULL;
1928	PVMATRESET pCur = pVM->vm.s.pAtReset;
1929	while (pCur)
1930	{
1931	if ( pCur->enmType == VMATRESETTYPE_DEV
1932	&& pCur->u.Dev.pDevIns == pDevInst
1933	&& (!pfnCallback \|\| pCur->u.Dev.pfnCallback == pfnCallback))
1934	{
1935	pCur = vmr3AtResetFree(pVM, pCur, pPrev);
1936	rc = VINF_SUCCESS;
1937	}
1938	else
1939	{
1940	pPrev = pCur;
1941	pCur = pCur->pNext;
1942	}
1943	}
1944
1945	AssertRC(rc);
1946	return rc;
1947	}
1948
1949
1950	/**
1951	* Deregisters an at VM reset internal callback.
1952	*
1953	* @returns VBox status code.
1954	* @param pVM The VM.
1955	* @param pfnCallback Callback function.
1956	*/
1957	VMR3DECL(int) VMR3AtResetDeregisterInternal(PVM pVM, PFNVMATRESETINT pfnCallback)
1958	{
1959	int rc = VERR_VM_ATRESET_NOT_FOUND;
1960	PVMATRESET pPrev = NULL;
1961	PVMATRESET pCur = pVM->vm.s.pAtReset;
1962	while (pCur)
1963	{
1964	if ( pCur->enmType == VMATRESETTYPE_INTERNAL
1965	&& pCur->u.Internal.pfnCallback == pfnCallback)
1966	{
1967	pCur = vmr3AtResetFree(pVM, pCur, pPrev);
1968	rc = VINF_SUCCESS;
1969	}
1970	else
1971	{
1972	pPrev = pCur;
1973	pCur = pCur->pNext;
1974	}
1975	}
1976
1977	AssertRC(rc);
1978	return rc;
1979	}
1980
1981
1982	/**
1983	* Deregisters an at VM reset external callback.
1984	*
1985	* @returns VBox status code.
1986	* @param pVM The VM.
1987	* @param pfnCallback Callback function.
1988	*/
1989	VMR3DECL(int) VMR3AtResetDeregisterExternal(PVM pVM, PFNVMATRESETEXT pfnCallback)
1990	{
1991	int rc = VERR_VM_ATRESET_NOT_FOUND;
1992	PVMATRESET pPrev = NULL;
1993	PVMATRESET pCur = pVM->vm.s.pAtReset;
1994	while (pCur)
1995	{
1996	if ( pCur->enmType == VMATRESETTYPE_INTERNAL
1997	&& pCur->u.External.pfnCallback == pfnCallback)
1998	{
1999	pCur = vmr3AtResetFree(pVM, pCur, pPrev);
2000	rc = VINF_SUCCESS;
2001	}
2002	else
2003	{
2004	pPrev = pCur;
2005	pCur = pCur->pNext;
2006	}
2007	}
2008
2009	AssertRC(rc);
2010	return rc;
2011	}
2012
2013
2014	/**
2015	* Gets the current VM state.
2016	*
2017	* @returns The current VM state.
2018	* @param pVM VM handle.
2019	* @thread Any
2020	*/
2021	VMR3DECL(VMSTATE) VMR3GetState(PVM pVM)
2022	{
2023	return pVM->enmVMState;
2024	}
2025
2026
2027	/**
2028	* Gets the state name string for a VM state.
2029	*
2030	* @returns Pointer to the state name. (readonly)
2031	* @param enmState The state.
2032	*/
2033	VMR3DECL(const char *) VMR3GetStateName(VMSTATE enmState)
2034	{
2035	switch (enmState)
2036	{
2037	case VMSTATE_CREATING: return "CREATING";
2038	case VMSTATE_CREATED: return "CREATED";
2039	case VMSTATE_RUNNING: return "RUNNING";
2040	case VMSTATE_LOADING: return "LOADING";
2041	case VMSTATE_LOAD_FAILURE: return "LOAD_FAILURE";
2042	case VMSTATE_SAVING: return "SAVING";
2043	case VMSTATE_SUSPENDED: return "SUSPENDED";
2044	case VMSTATE_RESETTING: return "RESETTING";
2045	case VMSTATE_GURU_MEDITATION: return "GURU_MEDIATION";
2046	case VMSTATE_OFF: return "OFF";
2047	case VMSTATE_DESTROYING: return "DESTROYING";
2048	case VMSTATE_TERMINATED: return "TERMINATED";
2049	default:
2050	AssertMsgFailed(("Unknown state %d\n", enmState));
2051	return "Unknown!\n";
2052	}
2053	}
2054
2055
2056	/**
2057	* Sets the current VM state.
2058	*
2059	* @returns The current VM state.
2060	* @param pVM VM handle.
2061	* @param enmStateNew The new state.
2062	*/
2063	static void vmR3SetState(PVM pVM, VMSTATE enmStateNew)
2064	{
2065	VMSTATE enmStateOld = pVM->enmVMState;
2066	pVM->enmVMState = enmStateNew;
2067	LogRel(("Changing the VM state from '%s' to '%s'.\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)));
2068
2069	/*
2070	* Call the at state change callbacks.
2071	*/
2072	for (PVMATSTATE pCur = pVM->vm.s.pAtState; pCur; pCur = pCur->pNext)
2073	{
2074	pCur->pfnAtState(pVM, enmStateNew, enmStateOld, pCur->pvUser);
2075	if (pVM->enmVMState == VMSTATE_DESTROYING)
2076	break;
2077	AssertMsg(pVM->enmVMState == enmStateNew,
2078	("You are not allowed to change the state while in the change callback, except "
2079	"from destroying the VM. There are restrictions in the way the state changes "
2080	"are propagated up to the EM execution loop and it makes the program flow very "
2081	"difficult to follow.\n"));
2082	}
2083	}
2084
2085
2086	/**
2087	* Registers a VM state change callback.
2088	*
2089	* You are not allowed to call any function which changes the VM state from a
2090	* state callback, except VMR3Destroy().
2091	*
2092	* @returns VBox status code.
2093	* @param pVM VM handle.
2094	* @param pfnAtState Pointer to callback.
2095	* @param pvUser User argument.
2096	* @thread Any.
2097	*/
2098	VMR3DECL(int) VMR3AtStateRegister(PVM pVM, PFNVMATSTATE pfnAtState, void *pvUser)
2099	{
2100	LogFlow(("VMR3AtStateRegister: pfnAtState=%p pvUser=%p\n", pfnAtState, pvUser));
2101
2102	/*
2103	* Validate input.
2104	*/
2105	if (!pfnAtState)
2106	{
2107	AssertMsgFailed(("callback is required\n"));
2108	return VERR_INVALID_PARAMETER;
2109	}
2110
2111	/*
2112	* Make sure we're in EMT (to avoid the logging).
2113	*/
2114	PVMREQ pReq;
2115	int rc = VMR3ReqCall(pVM, &pReq, RT_INDEFINITE_WAIT, (PFNRT)vmR3AtStateRegister, 3, pVM, pfnAtState, pvUser);
2116	if (VBOX_FAILURE(rc))
2117	return rc;
2118	rc = pReq->iStatus;
2119	VMR3ReqFree(pReq);
2120
2121	LogFlow(("VMR3AtStateRegister: returns %Vrc\n", rc));
2122	return rc;
2123	}
2124
2125
2126	/**
2127	* Registers a VM state change callback.
2128	*
2129	* @returns VBox status code.
2130	* @param pVM VM handle.
2131	* @param pfnAtState Pointer to callback.
2132	* @param pvUser User argument.
2133	* @thread EMT
2134	*/
2135	static DECLCALLBACK(int) vmR3AtStateRegister(PVM pVM, PFNVMATSTATE pfnAtState, void *pvUser)
2136	{
2137	/*
2138	* Allocate a new record.
2139	*/
2140
2141	PVMATSTATE pNew = (PVMATSTATE)MMR3HeapAlloc(pVM, MM_TAG_VM, sizeof(*pNew));
2142	if (!pNew)
2143	return VERR_NO_MEMORY;
2144
2145	/* fill */
2146	pNew->pfnAtState = pfnAtState;
2147	pNew->pvUser = pvUser;
2148	pNew->pNext = NULL;
2149
2150	/* insert */
2151	*pVM->vm.s.ppAtStateNext = pNew;
2152	pVM->vm.s.ppAtStateNext = &pNew->pNext;
2153
2154	return VINF_SUCCESS;
2155	}
2156
2157
2158	/**
2159	* Deregisters a VM state change callback.
2160	*
2161	* @returns VBox status code.
2162	* @param pVM VM handle.
2163	* @param pfnAtState Pointer to callback.
2164	* @param pvUser User argument.
2165	* @thread Any.
2166	*/
2167	VMR3DECL(int) VMR3AtStateDeregister(PVM pVM, PFNVMATSTATE pfnAtState, void *pvUser)
2168	{
2169	LogFlow(("VMR3AtStateDeregister: pfnAtState=%p pvUser=%p\n", pfnAtState, pvUser));
2170
2171	/*
2172	* Validate input.
2173	*/
2174	if (!pfnAtState)
2175	{
2176	AssertMsgFailed(("callback is required\n"));
2177	return VERR_INVALID_PARAMETER;
2178	}
2179
2180	/*
2181	* Make sure we're in EMT (to avoid the logging).
2182	*/
2183	PVMREQ pReq;
2184	int rc = VMR3ReqCall(pVM, &pReq, RT_INDEFINITE_WAIT, (PFNRT)vmR3AtStateDeregister, 3, pVM, pfnAtState, pvUser);
2185	if (VBOX_FAILURE(rc))
2186	return rc;
2187	rc = pReq->iStatus;
2188	VMR3ReqFree(pReq);
2189
2190	LogFlow(("VMR3AtStateDeregister: returns %Vrc\n", rc));
2191	return rc;
2192	}
2193
2194
2195	/**
2196	* Deregisters a VM state change callback.
2197	*
2198	* @returns VBox status code.
2199	* @param pVM VM handle.
2200	* @param pfnAtState Pointer to callback.
2201	* @param pvUser User argument.
2202	* @thread EMT
2203	*/
2204	static DECLCALLBACK(int) vmR3AtStateDeregister(PVM pVM, PFNVMATSTATE pfnAtState, void *pvUser)
2205	{
2206	LogFlow(("vmR3AtStateDeregister: pfnAtState=%p pvUser=%p\n", pfnAtState, pvUser));
2207
2208	/*
2209	* Search the list for the entry.
2210	*/
2211	PVMATSTATE pPrev = NULL;
2212	PVMATSTATE pCur = pVM->vm.s.pAtState;
2213	while ( pCur
2214	&& pCur->pfnAtState == pfnAtState
2215	&& pCur->pvUser == pvUser)
2216	{
2217	pPrev = pCur;
2218	pCur = pCur->pNext;
2219	}
2220	if (!pCur)
2221	{
2222	AssertMsgFailed(("pfnAtState=%p was not found\n", pfnAtState));
2223	return VERR_FILE_NOT_FOUND;
2224	}
2225
2226	/*
2227	* Unlink it.
2228	*/
2229	if (pPrev)
2230	{
2231	pPrev->pNext = pCur->pNext;
2232	if (!pCur->pNext)
2233	pVM->vm.s.ppAtStateNext = &pPrev->pNext;
2234	}
2235	else
2236	{
2237	pVM->vm.s.pAtState = pCur->pNext;
2238	if (!pCur->pNext)
2239	pVM->vm.s.ppAtStateNext = &pVM->vm.s.pAtState;
2240	}
2241
2242	/*
2243	* Free it.
2244	*/
2245	pCur->pfnAtState = NULL;
2246	pCur->pNext = NULL;
2247	MMR3HeapFree(pCur);
2248
2249	return VINF_SUCCESS;
2250	}
2251
2252
2253	/**
2254	* Registers a VM error callback.
2255	*
2256	* @returns VBox status code.
2257	* @param pVM The VM handle.
2258	* @param pfnAtError Pointer to callback.
2259	* @param pvUser User argument.
2260	* @thread Any.
2261	*/
2262	VMR3DECL(int) VMR3AtErrorRegister(PVM pVM, PFNVMATERROR pfnAtError, void *pvUser)
2263	{
2264	LogFlow(("VMR3AtErrorRegister: pfnAtError=%p pvUser=%p\n", pfnAtError, pvUser));
2265
2266	/*
2267	* Validate input.
2268	*/
2269	if (!pfnAtError)
2270	{
2271	AssertMsgFailed(("callback is required\n"));
2272	return VERR_INVALID_PARAMETER;
2273	}
2274
2275	/*
2276	* Make sure we're in EMT (to avoid the logging).
2277	*/
2278	PVMREQ pReq;
2279	int rc = VMR3ReqCall(pVM, &pReq, RT_INDEFINITE_WAIT, (PFNRT)vmR3AtErrorRegister, 3, pVM, pfnAtError, pvUser);
2280	if (VBOX_FAILURE(rc))
2281	return rc;
2282	rc = pReq->iStatus;
2283	VMR3ReqFree(pReq);
2284
2285	LogFlow(("VMR3AtErrorRegister: returns %Vrc\n", rc));
2286	return rc;
2287	}
2288
2289
2290	/**
2291	* Registers a VM error callback.
2292	*
2293	* @returns VBox status code.
2294	* @param pVM The VM handle.
2295	* @param pfnAtError Pointer to callback.
2296	* @param pvUser User argument.
2297	* @thread EMT
2298	*/
2299	static DECLCALLBACK(int) vmR3AtErrorRegister(PVM pVM, PFNVMATERROR pfnAtError, void *pvUser)
2300	{
2301	/*
2302	* Allocate a new record.
2303	*/
2304
2305	PVMATERROR pNew = (PVMATERROR)MMR3HeapAlloc(pVM, MM_TAG_VM, sizeof(*pNew));
2306	if (!pNew)
2307	return VERR_NO_MEMORY;
2308
2309	/* fill */
2310	pNew->pfnAtError = pfnAtError;
2311	pNew->pvUser = pvUser;
2312	pNew->pNext = NULL;
2313
2314	/* insert */
2315	*pVM->vm.s.ppAtErrorNext = pNew;
2316	pVM->vm.s.ppAtErrorNext = &pNew->pNext;
2317
2318	return VINF_SUCCESS;
2319	}
2320
2321
2322	/**
2323	* Deregisters a VM error callback.
2324	*
2325	* @returns VBox status code.
2326	* @param pVM The VM handle.
2327	* @param pfnAtError Pointer to callback.
2328	* @param pvUser User argument.
2329	* @thread Any.
2330	*/
2331	VMR3DECL(int) VMR3AtErrorDeregister(PVM pVM, PFNVMATERROR pfnAtError, void *pvUser)
2332	{
2333	LogFlow(("VMR3AtErrorDeregister: pfnAtError=%p pvUser=%p\n", pfnAtError, pvUser));
2334
2335	/*
2336	* Validate input.
2337	*/
2338	if (!pfnAtError)
2339	{
2340	AssertMsgFailed(("callback is required\n"));
2341	return VERR_INVALID_PARAMETER;
2342	}
2343
2344	/*
2345	* Make sure we're in EMT (to avoid the logging).
2346	*/
2347	PVMREQ pReq;
2348	int rc = VMR3ReqCall(pVM, &pReq, RT_INDEFINITE_WAIT, (PFNRT)vmR3AtErrorDeregister, 3, pVM, pfnAtError, pvUser);
2349	if (VBOX_FAILURE(rc))
2350	return rc;
2351	rc = pReq->iStatus;
2352	VMR3ReqFree(pReq);
2353
2354	LogFlow(("VMR3AtErrorDeregister: returns %Vrc\n", rc));
2355	return rc;
2356	}
2357
2358
2359	/**
2360	* Deregisters a VM error callback.
2361	*
2362	* @returns VBox status code.
2363	* @param pVM The VM handle.
2364	* @param pfnAtError Pointer to callback.
2365	* @param pvUser User argument.
2366	* @thread EMT
2367	*/
2368	static DECLCALLBACK(int) vmR3AtErrorDeregister(PVM pVM, PFNVMATERROR pfnAtError, void *pvUser)
2369	{
2370	LogFlow(("vmR3AtErrorDeregister: pfnAtError=%p pvUser=%p\n", pfnAtError, pvUser));
2371
2372	/*
2373	* Search the list for the entry.
2374	*/
2375	PVMATERROR pPrev = NULL;
2376	PVMATERROR pCur = pVM->vm.s.pAtError;
2377	while ( pCur
2378	&& pCur->pfnAtError == pfnAtError
2379	&& pCur->pvUser == pvUser)
2380	{
2381	pPrev = pCur;
2382	pCur = pCur->pNext;
2383	}
2384	if (!pCur)
2385	{
2386	AssertMsgFailed(("pfnAtError=%p was not found\n", pfnAtError));
2387	return VERR_FILE_NOT_FOUND;
2388	}
2389
2390	/*
2391	* Unlink it.
2392	*/
2393	if (pPrev)
2394	{
2395	pPrev->pNext = pCur->pNext;
2396	if (!pCur->pNext)
2397	pVM->vm.s.ppAtErrorNext = &pPrev->pNext;
2398	}
2399	else
2400	{
2401	pVM->vm.s.pAtError = pCur->pNext;
2402	if (!pCur->pNext)
2403	pVM->vm.s.ppAtErrorNext = &pVM->vm.s.pAtError;
2404	}
2405
2406	/*
2407	* Free it.
2408	*/
2409	pCur->pfnAtError = NULL;
2410	pCur->pNext = NULL;
2411	MMR3HeapFree(pCur);
2412
2413	return VINF_SUCCESS;
2414	}
2415
2416
2417	/**
2418	* Ellipsis to va_list wrapper for calling pfnAtError.
2419	*/
2420	static void vmR3SetErrorWorkerDoCall(PVM pVM, PVMATERROR pCur, int rc, RT_SRC_POS_DECL, const char *pszFormat, ...)
2421	{
2422	va_list va;
2423	va_start(va, pszFormat);
2424	pCur->pfnAtError(pVM, pCur->pvUser, rc, RT_SRC_POS_ARGS, pszFormat, va);
2425	va_end(va);
2426	}
2427
2428
2429	/**
2430	* This is a worker function for GC and Ring-0 calls to VMSetError and VMSetErrorV.
2431	* The message is found in VMINT.
2432	*
2433	* @param pVM The VM handle.
2434	* @thread EMT.
2435	*/
2436	VMR3DECL(void) VMR3SetErrorWorker(PVM pVM)
2437	{
2438	VM_ASSERT_EMT(pVM);
2439	AssertReleaseMsgFailed(("And we have a winner! You get to implement Ring-0 and GC VMSetErrorV! Contrats!\n"));
2440
2441	/*
2442	* Unpack the error (if we managed to format one).
2443	*/
2444	PVMERROR pErr = pVM->vm.s.pErrorR3;
2445	const char *pszFile = NULL;
2446	const char *pszFunction = NULL;
2447	uint32_t iLine = 0;
2448	const char *pszMessage;
2449	int32_t rc = VERR_MM_HYPER_NO_MEMORY;
2450	if (pErr)
2451	{
2452	AssertCompile(sizeof(const char) == sizeof(uint8_t));
2453	if (pErr->offFile)
2454	pszFile = (const char *)pErr + pErr->offFile;
2455	if (pErr->offFunction)
2456	pszFunction = (const char *)pErr + pErr->offFunction;
2457	if (pErr->offMessage)
2458	pszMessage = (const char *)pErr + pErr->offMessage;
2459	else
2460	pszMessage = "No message!";
2461	}
2462	else
2463	pszMessage = "No message! (Failed to allocate memory to put the error message in!)";
2464
2465	/*
2466	* Call the at error callbacks.
2467	*/
2468	for (PVMATERROR pCur = pVM->vm.s.pAtError; pCur; pCur = pCur->pNext)
2469	vmR3SetErrorWorkerDoCall(pVM, pCur, rc, RT_SRC_POS_ARGS, "%s", pszMessage);
2470	}
2471
2472
2473	/**
2474	* Worker which calls everyone listening to the VM error messages.
2475	*
2476	* @param pVM The VM handle.
2477	* @param rc The VBox status code.
2478	* @param RT_SRC_POS_DECL The source position of this error.
2479	* @param pszFormat Format string.
2480	* @param pArgs Pointer to the format arguments.
2481	* @thread EMT
2482	*/
2483	DECLCALLBACK(void) vmR3SetErrorV(PVM pVM, int rc, RT_SRC_POS_DECL, const char pszFormat, va_list pArgs)
2484	{
2485	/*
2486	* Make a copy of the message.
2487	*/
2488	vmSetErrorCopy(pVM, rc, RT_SRC_POS_ARGS, pszFormat, *pArgs);
2489
2490	/*
2491	* Call the at error callbacks.
2492	*/
2493	for (PVMATERROR pCur = pVM->vm.s.pAtError; pCur; pCur = pCur->pNext)
2494	{
2495	va_list va2;
2496	va_copy(va2, *pArgs);
2497	pCur->pfnAtError(pVM, pCur->pvUser, rc, RT_SRC_POS_ARGS, pszFormat, va2);
2498	va_end(va2);
2499	}
2500	}
2501

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source: vbox/trunk/src/VBox/VMM/VM.cpp@ 1

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