VM.cpp@ 70918

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1	/* $Id: VM.cpp 70918 2018-02-08 16:11:47Z vboxsync $ */
2	/** @file
3	* VM - Virtual Machine
4	*/
5
6	/*
7	* Copyright (C) 2006-2017 Oracle Corporation
8	*
9	* This file is part of VirtualBox Open Source Edition (OSE), as
10	* available from http://www.215389.xyz. This file is free software;
11	* you can redistribute it and/or modify it under the terms of the GNU
12	* General Public License (GPL) as published by the Free Software
13	* Foundation, in version 2 as it comes in the "COPYING" file of the
14	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16	*/
17
18	/** @page pg_vm VM API
19	*
20	* This is the encapsulating bit. It provides the APIs that Main and VBoxBFE
21	* use to create a VMM instance for running a guest in. It also provides
22	* facilities for queuing request for execution in EMT (serialization purposes
23	* mostly) and for reporting error back to the VMM user (Main/VBoxBFE).
24	*
25	*
26	* @section sec_vm_design Design Critique / Things To Do
27	*
28	* In hindsight this component is a big design mistake, all this stuff really
29	* belongs in the VMM component. It just seemed like a kind of ok idea at a
30	* time when the VMM bit was a kind of vague. 'VM' also happened to be the name
31	* of the per-VM instance structure (see vm.h), so it kind of made sense.
32	* However as it turned out, VMM(.cpp) is almost empty all it provides in ring-3
33	* is some minor functionally and some "routing" services.
34	*
35	* Fixing this is just a matter of some more or less straight forward
36	* refactoring, the question is just when someone will get to it. Moving the EMT
37	* would be a good start.
38	*
39	*/
40
41
42	/*********************************************************************************************************************************
43	* Header Files *
44	*********************************************************************************************************************************/
45	#define LOG_GROUP LOG_GROUP_VM
46	#include <VBox/vmm/cfgm.h>
47	#include <VBox/vmm/vmm.h>
48	#include <VBox/vmm/gvmm.h>
49	#include <VBox/vmm/mm.h>
50	#include <VBox/vmm/cpum.h>
51	#include <VBox/vmm/selm.h>
52	#include <VBox/vmm/trpm.h>
53	#include <VBox/vmm/dbgf.h>
54	#include <VBox/vmm/pgm.h>
55	#include <VBox/vmm/pdmapi.h>
56	#include <VBox/vmm/pdmdev.h>
57	#include <VBox/vmm/pdmcritsect.h>
58	#include <VBox/vmm/em.h>
59	#include <VBox/vmm/iem.h>
60	#ifdef VBOX_WITH_REM
61	# include <VBox/vmm/rem.h>
62	#endif
63	#include <VBox/vmm/nem.h>
64	#include <VBox/vmm/apic.h>
65	#include <VBox/vmm/tm.h>
66	#include <VBox/vmm/stam.h>
67	#include <VBox/vmm/patm.h>
68	#include <VBox/vmm/csam.h>
69	#include <VBox/vmm/iom.h>
70	#include <VBox/vmm/ssm.h>
71	#include <VBox/vmm/ftm.h>
72	#include <VBox/vmm/hm.h>
73	#include <VBox/vmm/gim.h>
74	#include "VMInternal.h"
75	#include <VBox/vmm/vm.h>
76	#include <VBox/vmm/uvm.h>
77
78	#include <VBox/sup.h>
79	#if defined(VBOX_WITH_DTRACE_R3) && !defined(VBOX_WITH_NATIVE_DTRACE)
80	# include <VBox/VBoxTpG.h>
81	#endif
82	#include <VBox/dbg.h>
83	#include <VBox/err.h>
84	#include <VBox/param.h>
85	#include <VBox/log.h>
86	#include <iprt/assert.h>
87	#include <iprt/alloc.h>
88	#include <iprt/asm.h>
89	#include <iprt/env.h>
90	#include <iprt/string.h>
91	#include <iprt/time.h>
92	#include <iprt/semaphore.h>
93	#include <iprt/thread.h>
94	#include <iprt/uuid.h>
95
96
97	/*********************************************************************************************************************************
98	* Internal Functions *
99	*********************************************************************************************************************************/
100	static int vmR3CreateUVM(uint32_t cCpus, PCVMM2USERMETHODS pVmm2UserMethods, PUVM *ppUVM);
101	static int vmR3CreateU(PUVM pUVM, uint32_t cCpus, PFNCFGMCONSTRUCTOR pfnCFGMConstructor, void *pvUserCFGM);
102	static int vmR3ReadBaseConfig(PVM pVM, PUVM pUVM, uint32_t cCpus);
103	static int vmR3InitRing3(PVM pVM, PUVM pUVM);
104	static int vmR3InitRing0(PVM pVM);
105	#ifdef VBOX_WITH_RAW_MODE
106	static int vmR3InitRC(PVM pVM);
107	#endif
108	static int vmR3InitDoCompleted(PVM pVM, VMINITCOMPLETED enmWhat);
109	#ifdef LOG_ENABLED
110	static DECLCALLBACK(size_t) vmR3LogPrefixCallback(PRTLOGGER pLogger, char pchBuf, size_t cchBuf, void pvUser);
111	#endif
112	static void vmR3DestroyUVM(PUVM pUVM, uint32_t cMilliesEMTWait);
113	static bool vmR3ValidateStateTransition(VMSTATE enmStateOld, VMSTATE enmStateNew);
114	static void vmR3DoAtState(PVM pVM, PUVM pUVM, VMSTATE enmStateNew, VMSTATE enmStateOld);
115	static int vmR3TrySetState(PVM pVM, const char *pszWho, unsigned cTransitions, ...);
116	static void vmR3SetStateLocked(PVM pVM, PUVM pUVM, VMSTATE enmStateNew, VMSTATE enmStateOld, bool fSetRatherThanClearFF);
117	static void vmR3SetState(PVM pVM, VMSTATE enmStateNew, VMSTATE enmStateOld);
118	static int vmR3SetErrorU(PUVM pUVM, int rc, RT_SRC_POS_DECL, const char *pszFormat, ...) RT_IPRT_FORMAT_ATTR(6, 7);
119
120
121	/**
122	* Do global VMM init.
123	*
124	* @returns VBox status code.
125	*/
126	VMMR3DECL(int) VMR3GlobalInit(void)
127	{
128	/*
129	* Only once.
130	*/
131	static bool volatile s_fDone = false;
132	if (s_fDone)
133	return VINF_SUCCESS;
134
135	#if defined(VBOX_WITH_DTRACE_R3) && !defined(VBOX_WITH_NATIVE_DTRACE)
136	SUPR3TracerRegisterModule(~(uintptr_t)0, "VBoxVMM", &g_VTGObjHeader, (uintptr_t)&g_VTGObjHeader,
137	SUP_TRACER_UMOD_FLAGS_SHARED);
138	#endif
139
140	/*
141	* We're done.
142	*/
143	s_fDone = true;
144	return VINF_SUCCESS;
145	}
146
147
148	/**
149	* Creates a virtual machine by calling the supplied configuration constructor.
150	*
151	* On successful returned the VM is powered, i.e. VMR3PowerOn() should be
152	* called to start the execution.
153	*
154	* @returns 0 on success.
155	* @returns VBox error code on failure.
156	* @param cCpus Number of virtual CPUs for the new VM.
157	* @param pVmm2UserMethods An optional method table that the VMM can use
158	* to make the user perform various action, like
159	* for instance state saving.
160	* @param pfnVMAtError Pointer to callback function for setting VM
161	* errors. This was added as an implicit call to
162	* VMR3AtErrorRegister() since there is no way the
163	* caller can get to the VM handle early enough to
164	* do this on its own.
165	* This is called in the context of an EMT.
166	* @param pvUserVM The user argument passed to pfnVMAtError.
167	* @param pfnCFGMConstructor Pointer to callback function for constructing the VM configuration tree.
168	* This is called in the context of an EMT0.
169	* @param pvUserCFGM The user argument passed to pfnCFGMConstructor.
170	* @param ppVM Where to optionally store the 'handle' of the
171	* created VM.
172	* @param ppUVM Where to optionally store the user 'handle' of
173	* the created VM, this includes one reference as
174	* if VMR3RetainUVM() was called. The caller
175	* MUST remember to pass the returned value to
176	* VMR3ReleaseUVM() once done with the handle.
177	*/
178	VMMR3DECL(int) VMR3Create(uint32_t cCpus, PCVMM2USERMETHODS pVmm2UserMethods,
179	PFNVMATERROR pfnVMAtError, void *pvUserVM,
180	PFNCFGMCONSTRUCTOR pfnCFGMConstructor, void *pvUserCFGM,
181	PVM ppVM, PUVM ppUVM)
182	{
183	LogFlow(("VMR3Create: cCpus=%RU32 pVmm2UserMethods=%p pfnVMAtError=%p pvUserVM=%p pfnCFGMConstructor=%p pvUserCFGM=%p ppVM=%p ppUVM=%p\n",
184	cCpus, pVmm2UserMethods, pfnVMAtError, pvUserVM, pfnCFGMConstructor, pvUserCFGM, ppVM, ppUVM));
185
186	if (pVmm2UserMethods)
187	{
188	AssertPtrReturn(pVmm2UserMethods, VERR_INVALID_POINTER);
189	AssertReturn(pVmm2UserMethods->u32Magic == VMM2USERMETHODS_MAGIC, VERR_INVALID_PARAMETER);
190	AssertReturn(pVmm2UserMethods->u32Version == VMM2USERMETHODS_VERSION, VERR_INVALID_PARAMETER);
191	AssertPtrNullReturn(pVmm2UserMethods->pfnSaveState, VERR_INVALID_POINTER);
192	AssertPtrNullReturn(pVmm2UserMethods->pfnNotifyEmtInit, VERR_INVALID_POINTER);
193	AssertPtrNullReturn(pVmm2UserMethods->pfnNotifyEmtTerm, VERR_INVALID_POINTER);
194	AssertPtrNullReturn(pVmm2UserMethods->pfnNotifyPdmtInit, VERR_INVALID_POINTER);
195	AssertPtrNullReturn(pVmm2UserMethods->pfnNotifyPdmtTerm, VERR_INVALID_POINTER);
196	AssertPtrNullReturn(pVmm2UserMethods->pfnNotifyResetTurnedIntoPowerOff, VERR_INVALID_POINTER);
197	AssertReturn(pVmm2UserMethods->u32EndMagic == VMM2USERMETHODS_MAGIC, VERR_INVALID_PARAMETER);
198	}
199	AssertPtrNullReturn(pfnVMAtError, VERR_INVALID_POINTER);
200	AssertPtrNullReturn(pfnCFGMConstructor, VERR_INVALID_POINTER);
201	AssertPtrNullReturn(ppVM, VERR_INVALID_POINTER);
202	AssertPtrNullReturn(ppUVM, VERR_INVALID_POINTER);
203	AssertReturn(ppVM \|\| ppUVM, VERR_INVALID_PARAMETER);
204
205	/*
206	* Because of the current hackiness of the applications
207	* we'll have to initialize global stuff from here.
208	* Later the applications will take care of this in a proper way.
209	*/
210	static bool fGlobalInitDone = false;
211	if (!fGlobalInitDone)
212	{
213	int rc = VMR3GlobalInit();
214	if (RT_FAILURE(rc))
215	return rc;
216	fGlobalInitDone = true;
217	}
218
219	/*
220	* Validate input.
221	*/
222	AssertLogRelMsgReturn(cCpus > 0 && cCpus <= VMM_MAX_CPU_COUNT, ("%RU32\n", cCpus), VERR_TOO_MANY_CPUS);
223
224	/*
225	* Create the UVM so we can register the at-error callback
226	* and consolidate a bit of cleanup code.
227	*/
228	PUVM pUVM = NULL; /* shuts up gcc */
229	int rc = vmR3CreateUVM(cCpus, pVmm2UserMethods, &pUVM);
230	if (RT_FAILURE(rc))
231	return rc;
232	if (pfnVMAtError)
233	rc = VMR3AtErrorRegister(pUVM, pfnVMAtError, pvUserVM);
234	if (RT_SUCCESS(rc))
235	{
236	/*
237	* Initialize the support library creating the session for this VM.
238	*/
239	rc = SUPR3Init(&pUVM->vm.s.pSession);
240	if (RT_SUCCESS(rc))
241	{
242	/*
243	* Call vmR3CreateU in the EMT thread and wait for it to finish.
244	*
245	* Note! VMCPUID_ANY is used here because VMR3ReqQueueU would have trouble
246	* submitting a request to a specific VCPU without a pVM. So, to make
247	* sure init is running on EMT(0), vmR3EmulationThreadWithId makes sure
248	* that only EMT(0) is servicing VMCPUID_ANY requests when pVM is NULL.
249	*/
250	PVMREQ pReq;
251	rc = VMR3ReqCallU(pUVM, VMCPUID_ANY, &pReq, RT_INDEFINITE_WAIT, VMREQFLAGS_VBOX_STATUS,
252	(PFNRT)vmR3CreateU, 4, pUVM, cCpus, pfnCFGMConstructor, pvUserCFGM);
253	if (RT_SUCCESS(rc))
254	{
255	rc = pReq->iStatus;
256	VMR3ReqFree(pReq);
257	if (RT_SUCCESS(rc))
258	{
259	/*
260	* Success!
261	*/
262	if (ppVM)
263	*ppVM = pUVM->pVM;
264	if (ppUVM)
265	{
266	VMR3RetainUVM(pUVM);
267	*ppUVM = pUVM;
268	}
269	LogFlow(("VMR3Create: returns VINF_SUCCESS (pVM=%p, pUVM=%p\n", pUVM->pVM, pUVM));
270	return VINF_SUCCESS;
271	}
272	}
273	else
274	AssertMsgFailed(("VMR3ReqCallU failed rc=%Rrc\n", rc));
275
276	/*
277	* An error occurred during VM creation. Set the error message directly
278	* using the initial callback, as the callback list might not exist yet.
279	*/
280	const char *pszError;
281	switch (rc)
282	{
283	case VERR_VMX_IN_VMX_ROOT_MODE:
284	#ifdef RT_OS_LINUX
285	pszError = N_("VirtualBox can't operate in VMX root mode. "
286	"Please disable the KVM kernel extension, recompile your kernel and reboot");
287	#else
288	pszError = N_("VirtualBox can't operate in VMX root mode. Please close all other virtualization programs.");
289	#endif
290	break;
291
292	#ifndef RT_OS_DARWIN
293	case VERR_HM_CONFIG_MISMATCH:
294	pszError = N_("VT-x/AMD-V is either not available on your host or disabled. "
295	"This hardware extension is required by the VM configuration");
296	break;
297	#endif
298
299	case VERR_SVM_IN_USE:
300	#ifdef RT_OS_LINUX
301	pszError = N_("VirtualBox can't enable the AMD-V extension. "
302	"Please disable the KVM kernel extension, recompile your kernel and reboot");
303	#else
304	pszError = N_("VirtualBox can't enable the AMD-V extension. Please close all other virtualization programs.");
305	#endif
306	break;
307
308	#ifdef RT_OS_LINUX
309	case VERR_SUPDRV_COMPONENT_NOT_FOUND:
310	pszError = N_("One of the kernel modules was not successfully loaded. Make sure "
311	"that no kernel modules from an older version of VirtualBox exist. "
312	"Then try to recompile and reload the kernel modules by executing "
313	"'/sbin/vboxconfig' as root");
314	break;
315	#endif
316
317	case VERR_RAW_MODE_INVALID_SMP:
318	pszError = N_("VT-x/AMD-V is either not available on your host or disabled. "
319	"VirtualBox requires this hardware extension to emulate more than one "
320	"guest CPU");
321	break;
322
323	case VERR_SUPDRV_KERNEL_TOO_OLD_FOR_VTX:
324	#ifdef RT_OS_LINUX
325	pszError = N_("Because the host kernel is too old, VirtualBox cannot enable the VT-x "
326	"extension. Either upgrade your kernel to Linux 2.6.13 or later or disable "
327	"the VT-x extension in the VM settings. Note that without VT-x you have "
328	"to reduce the number of guest CPUs to one");
329	#else
330	pszError = N_("Because the host kernel is too old, VirtualBox cannot enable the VT-x "
331	"extension. Either upgrade your kernel or disable the VT-x extension in the "
332	"VM settings. Note that without VT-x you have to reduce the number of guest "
333	"CPUs to one");
334	#endif
335	break;
336
337	case VERR_PDM_DEVICE_NOT_FOUND:
338	pszError = N_("A virtual device is configured in the VM settings but the device "
339	"implementation is missing.\n"
340	"A possible reason for this error is a missing extension pack. Note "
341	"that as of VirtualBox 4.0, certain features (for example USB 2.0 "
342	"support and remote desktop) are only available from an 'extension "
343	"pack' which must be downloaded and installed separately");
344	break;
345
346	case VERR_PCI_PASSTHROUGH_NO_HM:
347	pszError = N_("PCI passthrough requires VT-x/AMD-V");
348	break;
349
350	case VERR_PCI_PASSTHROUGH_NO_NESTED_PAGING:
351	pszError = N_("PCI passthrough requires nested paging");
352	break;
353
354	default:
355	if (VMR3GetErrorCount(pUVM) == 0)
356	pszError = RTErrGetFull(rc);
357	else
358	pszError = NULL; /* already set. */
359	break;
360	}
361	if (pszError)
362	vmR3SetErrorU(pUVM, rc, RT_SRC_POS, pszError, rc);
363	}
364	else
365	{
366	/*
367	* An error occurred at support library initialization time (before the
368	* VM could be created). Set the error message directly using the
369	* initial callback, as the callback list doesn't exist yet.
370	*/
371	const char *pszError;
372	switch (rc)
373	{
374	case VERR_VM_DRIVER_LOAD_ERROR:
375	#ifdef RT_OS_LINUX
376	pszError = N_("VirtualBox kernel driver not loaded. The vboxdrv kernel module "
377	"was either not loaded or /dev/vboxdrv is not set up properly. "
378	"Re-setup the kernel module by executing "
379	"'/sbin/vboxconfig' as root");
380	#else
381	pszError = N_("VirtualBox kernel driver not loaded");
382	#endif
383	break;
384	case VERR_VM_DRIVER_OPEN_ERROR:
385	pszError = N_("VirtualBox kernel driver cannot be opened");
386	break;
387	case VERR_VM_DRIVER_NOT_ACCESSIBLE:
388	#ifdef VBOX_WITH_HARDENING
389	/* This should only happen if the executable wasn't hardened - bad code/build. */
390	pszError = N_("VirtualBox kernel driver not accessible, permission problem. "
391	"Re-install VirtualBox. If you are building it yourself, you "
392	"should make sure it installed correctly and that the setuid "
393	"bit is set on the executables calling VMR3Create.");
394	#else
395	/* This should only happen when mixing builds or with the usual /dev/vboxdrv access issues. */
396	# if defined(RT_OS_DARWIN)
397	pszError = N_("VirtualBox KEXT is not accessible, permission problem. "
398	"If you have built VirtualBox yourself, make sure that you do not "
399	"have the vboxdrv KEXT from a different build or installation loaded.");
400	# elif defined(RT_OS_LINUX)
401	pszError = N_("VirtualBox kernel driver is not accessible, permission problem. "
402	"If you have built VirtualBox yourself, make sure that you do "
403	"not have the vboxdrv kernel module from a different build or "
404	"installation loaded. Also, make sure the vboxdrv udev rule gives "
405	"you the permission you need to access the device.");
406	# elif defined(RT_OS_WINDOWS)
407	pszError = N_("VirtualBox kernel driver is not accessible, permission problem.");
408	# else /* solaris, freebsd, ++. */
409	pszError = N_("VirtualBox kernel module is not accessible, permission problem. "
410	"If you have built VirtualBox yourself, make sure that you do "
411	"not have the vboxdrv kernel module from a different install loaded.");
412	# endif
413	#endif
414	break;
415	case VERR_INVALID_HANDLE: /** @todo track down and fix this error. */
416	case VERR_VM_DRIVER_NOT_INSTALLED:
417	#ifdef RT_OS_LINUX
418	pszError = N_("VirtualBox kernel driver not installed. The vboxdrv kernel module "
419	"was either not loaded or /dev/vboxdrv was not created for some "
420	"reason. Re-setup the kernel module by executing "
421	"'/sbin/vboxconfig' as root");
422	#else
423	pszError = N_("VirtualBox kernel driver not installed");
424	#endif
425	break;
426	case VERR_NO_MEMORY:
427	pszError = N_("VirtualBox support library out of memory");
428	break;
429	case VERR_VERSION_MISMATCH:
430	case VERR_VM_DRIVER_VERSION_MISMATCH:
431	pszError = N_("The VirtualBox support driver which is running is from a different "
432	"version of VirtualBox. You can correct this by stopping all "
433	"running instances of VirtualBox and reinstalling the software.");
434	break;
435	default:
436	pszError = N_("Unknown error initializing kernel driver");
437	AssertMsgFailed(("Add error message for rc=%d (%Rrc)\n", rc, rc));
438	}
439	vmR3SetErrorU(pUVM, rc, RT_SRC_POS, pszError, rc);
440	}
441	}
442
443	/* cleanup */
444	vmR3DestroyUVM(pUVM, 2000);
445	LogFlow(("VMR3Create: returns %Rrc\n", rc));
446	return rc;
447	}
448
449
450	/**
451	* Creates the UVM.
452	*
453	* This will not initialize the support library even if vmR3DestroyUVM
454	* will terminate that.
455	*
456	* @returns VBox status code.
457	* @param cCpus Number of virtual CPUs
458	* @param pVmm2UserMethods Pointer to the optional VMM -> User method
459	* table.
460	* @param ppUVM Where to store the UVM pointer.
461	*/
462	static int vmR3CreateUVM(uint32_t cCpus, PCVMM2USERMETHODS pVmm2UserMethods, PUVM *ppUVM)
463	{
464	uint32_t i;
465
466	/*
467	* Create and initialize the UVM.
468	*/
469	PUVM pUVM = (PUVM)RTMemPageAllocZ(RT_OFFSETOF(UVM, aCpus[cCpus]));
470	AssertReturn(pUVM, VERR_NO_MEMORY);
471	pUVM->u32Magic = UVM_MAGIC;
472	pUVM->cCpus = cCpus;
473	pUVM->pVmm2UserMethods = pVmm2UserMethods;
474
475	AssertCompile(sizeof(pUVM->vm.s) <= sizeof(pUVM->vm.padding));
476
477	pUVM->vm.s.cUvmRefs = 1;
478	pUVM->vm.s.ppAtStateNext = &pUVM->vm.s.pAtState;
479	pUVM->vm.s.ppAtErrorNext = &pUVM->vm.s.pAtError;
480	pUVM->vm.s.ppAtRuntimeErrorNext = &pUVM->vm.s.pAtRuntimeError;
481
482	pUVM->vm.s.enmHaltMethod = VMHALTMETHOD_BOOTSTRAP;
483	RTUuidClear(&pUVM->vm.s.Uuid);
484
485	/* Initialize the VMCPU array in the UVM. */
486	for (i = 0; i < cCpus; i++)
487	{
488	pUVM->aCpus[i].pUVM = pUVM;
489	pUVM->aCpus[i].idCpu = i;
490	}
491
492	/* Allocate a TLS entry to store the VMINTUSERPERVMCPU pointer. */
493	int rc = RTTlsAllocEx(&pUVM->vm.s.idxTLS, NULL);
494	AssertRC(rc);
495	if (RT_SUCCESS(rc))
496	{
497	/* Allocate a halt method event semaphore for each VCPU. */
498	for (i = 0; i < cCpus; i++)
499	pUVM->aCpus[i].vm.s.EventSemWait = NIL_RTSEMEVENT;
500	for (i = 0; i < cCpus; i++)
501	{
502	rc = RTSemEventCreate(&pUVM->aCpus[i].vm.s.EventSemWait);
503	if (RT_FAILURE(rc))
504	break;
505	}
506	if (RT_SUCCESS(rc))
507	{
508	rc = RTCritSectInit(&pUVM->vm.s.AtStateCritSect);
509	if (RT_SUCCESS(rc))
510	{
511	rc = RTCritSectInit(&pUVM->vm.s.AtErrorCritSect);
512	if (RT_SUCCESS(rc))
513	{
514	/*
515	* Init fundamental (sub-)components - STAM, MMR3Heap and PDMLdr.
516	*/
517	rc = PDMR3InitUVM(pUVM);
518	if (RT_SUCCESS(rc))
519	{
520	rc = STAMR3InitUVM(pUVM);
521	if (RT_SUCCESS(rc))
522	{
523	rc = MMR3InitUVM(pUVM);
524	if (RT_SUCCESS(rc))
525	{
526	/*
527	* Start the emulation threads for all VMCPUs.
528	*/
529	for (i = 0; i < cCpus; i++)
530	{
531	rc = RTThreadCreateF(&pUVM->aCpus[i].vm.s.ThreadEMT, vmR3EmulationThread, &pUVM->aCpus[i],
532	_1M, RTTHREADTYPE_EMULATION, RTTHREADFLAGS_WAITABLE,
533	cCpus > 1 ? "EMT-%u" : "EMT", i);
534	if (RT_FAILURE(rc))
535	break;
536
537	pUVM->aCpus[i].vm.s.NativeThreadEMT = RTThreadGetNative(pUVM->aCpus[i].vm.s.ThreadEMT);
538	}
539
540	if (RT_SUCCESS(rc))
541	{
542	*ppUVM = pUVM;
543	return VINF_SUCCESS;
544	}
545
546	/* bail out. */
547	while (i-- > 0)
548	{
549	/** @todo rainy day: terminate the EMTs. */
550	}
551	MMR3TermUVM(pUVM);
552	}
553	STAMR3TermUVM(pUVM);
554	}
555	PDMR3TermUVM(pUVM);
556	}
557	RTCritSectDelete(&pUVM->vm.s.AtErrorCritSect);
558	}
559	RTCritSectDelete(&pUVM->vm.s.AtStateCritSect);
560	}
561	}
562	for (i = 0; i < cCpus; i++)
563	{
564	RTSemEventDestroy(pUVM->aCpus[i].vm.s.EventSemWait);
565	pUVM->aCpus[i].vm.s.EventSemWait = NIL_RTSEMEVENT;
566	}
567	RTTlsFree(pUVM->vm.s.idxTLS);
568	}
569	RTMemPageFree(pUVM, RT_OFFSETOF(UVM, aCpus[pUVM->cCpus]));
570	return rc;
571	}
572
573
574	/**
575	* Creates and initializes the VM.
576	*
577	* @thread EMT
578	*/
579	static int vmR3CreateU(PUVM pUVM, uint32_t cCpus, PFNCFGMCONSTRUCTOR pfnCFGMConstructor, void *pvUserCFGM)
580	{
581	/*
582	* Load the VMMR0.r0 module so that we can call GVMMR0CreateVM.
583	*/
584	int rc = PDMR3LdrLoadVMMR0U(pUVM);
585	if (RT_FAILURE(rc))
586	{
587	/** @todo we need a cleaner solution for this (VERR_VMX_IN_VMX_ROOT_MODE).
588	* bird: what about moving the message down here? Main picks the first message, right? */
589	if (rc == VERR_VMX_IN_VMX_ROOT_MODE)
590	return rc; /* proper error message set later on */
591	return vmR3SetErrorU(pUVM, rc, RT_SRC_POS, N_("Failed to load VMMR0.r0"));
592	}
593
594	/*
595	* Request GVMM to create a new VM for us.
596	*/
597	GVMMCREATEVMREQ CreateVMReq;
598	CreateVMReq.Hdr.u32Magic = SUPVMMR0REQHDR_MAGIC;
599	CreateVMReq.Hdr.cbReq = sizeof(CreateVMReq);
600	CreateVMReq.pSession = pUVM->vm.s.pSession;
601	CreateVMReq.pVMR0 = NIL_RTR0PTR;
602	CreateVMReq.pVMR3 = NULL;
603	CreateVMReq.cCpus = cCpus;
604	rc = SUPR3CallVMMR0Ex(NIL_RTR0PTR, NIL_VMCPUID, VMMR0_DO_GVMM_CREATE_VM, 0, &CreateVMReq.Hdr);
605	if (RT_SUCCESS(rc))
606	{
607	PVM pVM = pUVM->pVM = CreateVMReq.pVMR3;
608	AssertRelease(VALID_PTR(pVM));
609	AssertRelease(pVM->pVMR0 == CreateVMReq.pVMR0);
610	AssertRelease(pVM->pSession == pUVM->vm.s.pSession);
611	AssertRelease(pVM->cCpus == cCpus);
612	AssertRelease(pVM->uCpuExecutionCap == 100);
613	AssertRelease(pVM->offVMCPU == RT_UOFFSETOF(VM, aCpus));
614	AssertCompileMemberAlignment(VM, cpum, 64);
615	AssertCompileMemberAlignment(VM, tm, 64);
616	AssertCompileMemberAlignment(VM, aCpus, PAGE_SIZE);
617
618	Log(("VMR3Create: Created pUVM=%p pVM=%p pVMR0=%p hSelf=%#x cCpus=%RU32\n",
619	pUVM, pVM, pVM->pVMR0, pVM->hSelf, pVM->cCpus));
620
621	/*
622	* Initialize the VM structure and our internal data (VMINT).
623	*/
624	pVM->pUVM = pUVM;
625
626	for (VMCPUID i = 0; i < pVM->cCpus; i++)
627	{
628	pVM->aCpus[i].pUVCpu = &pUVM->aCpus[i];
629	pVM->aCpus[i].idCpu = i;
630	pVM->aCpus[i].hNativeThread = pUVM->aCpus[i].vm.s.NativeThreadEMT;
631	Assert(pVM->aCpus[i].hNativeThread != NIL_RTNATIVETHREAD);
632	/* hNativeThreadR0 is initialized on EMT registration. */
633	pUVM->aCpus[i].pVCpu = &pVM->aCpus[i];
634	pUVM->aCpus[i].pVM = pVM;
635	}
636
637
638	/*
639	* Init the configuration.
640	*/
641	rc = CFGMR3Init(pVM, pfnCFGMConstructor, pvUserCFGM);
642	if (RT_SUCCESS(rc))
643	{
644	rc = vmR3ReadBaseConfig(pVM, pUVM, cCpus);
645	if (RT_SUCCESS(rc))
646	{
647	/*
648	* Init the ring-3 components and ring-3 per cpu data, finishing it off
649	* by a relocation round (intermediate context finalization will do this).
650	*/
651	rc = vmR3InitRing3(pVM, pUVM);
652	if (RT_SUCCESS(rc))
653	{
654	rc = PGMR3FinalizeMappings(pVM);
655	if (RT_SUCCESS(rc))
656	{
657
658	LogFlow(("Ring-3 init succeeded\n"));
659
660	/*
661	* Init the Ring-0 components.
662	*/
663	rc = vmR3InitRing0(pVM);
664	if (RT_SUCCESS(rc))
665	{
666	/* Relocate again, because some switcher fixups depends on R0 init results. */
667	VMR3Relocate(pVM, 0 /* offDelta */);
668
669	#ifdef VBOX_WITH_DEBUGGER
670	/*
671	* Init the tcp debugger console if we're building
672	* with debugger support.
673	*/
674	void *pvUser = NULL;
675	rc = DBGCTcpCreate(pUVM, &pvUser);
676	if ( RT_SUCCESS(rc)
677	\|\| rc == VERR_NET_ADDRESS_IN_USE)
678	{
679	pUVM->vm.s.pvDBGC = pvUser;
680	#endif
681	/*
682	* Init the Raw-Mode Context components.
683	*/
684	#ifdef VBOX_WITH_RAW_MODE
685	rc = vmR3InitRC(pVM);
686	if (RT_SUCCESS(rc))
687	#endif
688	{
689	/*
690	* Now we can safely set the VM halt method to default.
691	*/
692	rc = vmR3SetHaltMethodU(pUVM, VMHALTMETHOD_DEFAULT);
693	if (RT_SUCCESS(rc))
694	{
695	/*
696	* Set the state and we're done.
697	*/
698	vmR3SetState(pVM, VMSTATE_CREATED, VMSTATE_CREATING);
699
700	#ifdef LOG_ENABLED
701	RTLogSetCustomPrefixCallback(NULL, vmR3LogPrefixCallback, pUVM);
702	#endif
703	return VINF_SUCCESS;
704	}
705	}
706	#ifdef VBOX_WITH_DEBUGGER
707	DBGCTcpTerminate(pUVM, pUVM->vm.s.pvDBGC);
708	pUVM->vm.s.pvDBGC = NULL;
709	}
710	#endif
711	//..
712	}
713	}
714	vmR3Destroy(pVM);
715	}
716	}
717	//..
718
719	/* Clean CFGM. */
720	int rc2 = CFGMR3Term(pVM);
721	AssertRC(rc2);
722	}
723
724	/*
725	* Do automatic cleanups while the VM structure is still alive and all
726	* references to it are still working.
727	*/
728	PDMR3CritSectBothTerm(pVM);
729
730	/*
731	* Drop all references to VM and the VMCPU structures, then
732	* tell GVMM to destroy the VM.
733	*/
734	pUVM->pVM = NULL;
735	for (VMCPUID i = 0; i < pUVM->cCpus; i++)
736	{
737	pUVM->aCpus[i].pVM = NULL;
738	pUVM->aCpus[i].pVCpu = NULL;
739	}
740	Assert(pUVM->vm.s.enmHaltMethod == VMHALTMETHOD_BOOTSTRAP);
741
742	if (pUVM->cCpus > 1)
743	{
744	/* Poke the other EMTs since they may have stale pVM and pVCpu references
745	on the stack (see VMR3WaitU for instance) if they've been awakened after
746	VM creation. */
747	for (VMCPUID i = 1; i < pUVM->cCpus; i++)
748	VMR3NotifyCpuFFU(&pUVM->aCpus[i], 0);
749	RTThreadSleep(RT_MIN(100 + 25 (pUVM->cCpus - 1), 500)); / very sophisticated */
750	}
751
752	int rc2 = SUPR3CallVMMR0Ex(CreateVMReq.pVMR0, 0 /idCpu/, VMMR0_DO_GVMM_DESTROY_VM, 0, NULL);
753	AssertRC(rc2);
754	}
755	else
756	vmR3SetErrorU(pUVM, rc, RT_SRC_POS, N_("VM creation failed (GVMM)"));
757
758	LogFlow(("vmR3CreateU: returns %Rrc\n", rc));
759	return rc;
760	}
761
762
763	/**
764	* Reads the base configuation from CFGM.
765	*
766	* @returns VBox status code.
767	* @param pVM The cross context VM structure.
768	* @param pUVM The user mode VM structure.
769	* @param cCpus The CPU count given to VMR3Create.
770	*/
771	static int vmR3ReadBaseConfig(PVM pVM, PUVM pUVM, uint32_t cCpus)
772	{
773	int rc;
774	PCFGMNODE pRoot = CFGMR3GetRoot(pVM);
775
776	/*
777	* If executing in fake suplib mode disable RR3 and RR0 in the config.
778	*/
779	const char *psz = RTEnvGet("VBOX_SUPLIB_FAKE");
780	if (psz && !strcmp(psz, "fake"))
781	{
782	CFGMR3RemoveValue(pRoot, "RawR3Enabled");
783	CFGMR3InsertInteger(pRoot, "RawR3Enabled", 0);
784	CFGMR3RemoveValue(pRoot, "RawR0Enabled");
785	CFGMR3InsertInteger(pRoot, "RawR0Enabled", 0);
786	}
787
788	/*
789	* Base EM and HM config properties.
790	*/
791	Assert(pVM->fRecompileUser == false); /* ASSUMES all zeros at this point */
792	#ifdef VBOX_WITH_RAW_MODE
793	bool fEnabled;
794	rc = CFGMR3QueryBoolDef(pRoot, "RawR3Enabled", &fEnabled, false); AssertRCReturn(rc, rc);
795	pVM->fRecompileUser = !fEnabled;
796	rc = CFGMR3QueryBoolDef(pRoot, "RawR0Enabled", &fEnabled, false); AssertRCReturn(rc, rc);
797	pVM->fRecompileSupervisor = !fEnabled;
798	# ifdef VBOX_WITH_RAW_RING1
799	rc = CFGMR3QueryBoolDef(pRoot, "RawR1Enabled", &pVM->fRawRing1Enabled, false);
800	# endif
801	rc = CFGMR3QueryBoolDef(pRoot, "PATMEnabled", &pVM->fPATMEnabled, true); AssertRCReturn(rc, rc);
802	rc = CFGMR3QueryBoolDef(pRoot, "CSAMEnabled", &pVM->fCSAMEnabled, true); AssertRCReturn(rc, rc);
803	rc = CFGMR3QueryBoolDef(pRoot, "HMEnabled", &pVM->fHMEnabled, true); AssertRCReturn(rc, rc);
804	#else
805	pVM->fHMEnabled = true;
806	#endif
807	Assert(!pVM->fHMEnabledFixed);
808	LogRel(("VM: fHMEnabled=%RTbool (configured) fRecompileUser=%RTbool fRecompileSupervisor=%RTbool\n"
809	"VM: fRawRing1Enabled=%RTbool CSAM=%RTbool PATM=%RTbool\n",
810	pVM->fHMEnabled, pVM->fRecompileUser, pVM->fRecompileSupervisor,
811	pVM->fRawRing1Enabled, pVM->fCSAMEnabled, pVM->fPATMEnabled));
812
813
814	/*
815	* Make sure the CPU count in the config data matches.
816	*/
817	uint32_t cCPUsCfg;
818	rc = CFGMR3QueryU32Def(pRoot, "NumCPUs", &cCPUsCfg, 1);
819	AssertLogRelMsgRCReturn(rc, ("Configuration error: Querying \"NumCPUs\" as integer failed, rc=%Rrc\n", rc), rc);
820	AssertLogRelMsgReturn(cCPUsCfg == cCpus,
821	("Configuration error: \"NumCPUs\"=%RU32 and VMR3Create::cCpus=%RU32 does not match!\n",
822	cCPUsCfg, cCpus),
823	VERR_INVALID_PARAMETER);
824
825	/*
826	* Get the CPU execution cap.
827	*/
828	rc = CFGMR3QueryU32Def(pRoot, "CpuExecutionCap", &pVM->uCpuExecutionCap, 100);
829	AssertLogRelMsgRCReturn(rc, ("Configuration error: Querying \"CpuExecutionCap\" as integer failed, rc=%Rrc\n", rc), rc);
830
831	/*
832	* Get the VM name and UUID.
833	*/
834	rc = CFGMR3QueryStringAllocDef(pRoot, "Name", &pUVM->vm.s.pszName, "<unknown>");
835	AssertLogRelMsgRCReturn(rc, ("Configuration error: Querying \"Name\" failed, rc=%Rrc\n", rc), rc);
836
837	rc = CFGMR3QueryBytes(pRoot, "UUID", &pUVM->vm.s.Uuid, sizeof(pUVM->vm.s.Uuid));
838	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
839	rc = VINF_SUCCESS;
840	AssertLogRelMsgRCReturn(rc, ("Configuration error: Querying \"UUID\" failed, rc=%Rrc\n", rc), rc);
841
842	rc = CFGMR3QueryBoolDef(pRoot, "PowerOffInsteadOfReset", &pVM->vm.s.fPowerOffInsteadOfReset, false);
843	AssertLogRelMsgRCReturn(rc, ("Configuration error: Querying \"PowerOffInsteadOfReset\" failed, rc=%Rrc\n", rc), rc);
844
845	return VINF_SUCCESS;
846	}
847
848
849	/**
850	* Register the calling EMT with GVM.
851	*
852	* @returns VBox status code.
853	* @param pVM The cross context VM structure.
854	* @param idCpu The Virtual CPU ID.
855	*/
856	static DECLCALLBACK(int) vmR3RegisterEMT(PVM pVM, VMCPUID idCpu)
857	{
858	Assert(VMMGetCpuId(pVM) == idCpu);
859	int rc = SUPR3CallVMMR0Ex(pVM->pVMR0, idCpu, VMMR0_DO_GVMM_REGISTER_VMCPU, 0, NULL);
860	if (RT_FAILURE(rc))
861	LogRel(("idCpu=%u rc=%Rrc\n", idCpu, rc));
862	return rc;
863	}
864
865
866	/**
867	* Initializes all R3 components of the VM
868	*/
869	static int vmR3InitRing3(PVM pVM, PUVM pUVM)
870	{
871	int rc;
872
873	/*
874	* Register the other EMTs with GVM.
875	*/
876	for (VMCPUID idCpu = 1; idCpu < pVM->cCpus; idCpu++)
877	{
878	rc = VMR3ReqCallWait(pVM, idCpu, (PFNRT)vmR3RegisterEMT, 2, pVM, idCpu);
879	if (RT_FAILURE(rc))
880	return rc;
881	}
882
883	/*
884	* Register statistics.
885	*/
886	STAM_REG(pVM, &pVM->StatTotalInGC, STAMTYPE_PROFILE_ADV, "/PROF/VM/InGC", STAMUNIT_TICKS_PER_CALL, "Profiling the total time spent in GC.");
887	STAM_REG(pVM, &pVM->StatSwitcherToGC, STAMTYPE_PROFILE_ADV, "/PROF/VM/SwitchToGC", STAMUNIT_TICKS_PER_CALL, "Profiling switching to GC.");
888	STAM_REG(pVM, &pVM->StatSwitcherToHC, STAMTYPE_PROFILE_ADV, "/PROF/VM/SwitchToHC", STAMUNIT_TICKS_PER_CALL, "Profiling switching to HC.");
889	STAM_REG(pVM, &pVM->StatSwitcherSaveRegs, STAMTYPE_PROFILE_ADV, "/VM/Switcher/ToGC/SaveRegs", STAMUNIT_TICKS_PER_CALL,"Profiling switching to GC.");
890	STAM_REG(pVM, &pVM->StatSwitcherSysEnter, STAMTYPE_PROFILE_ADV, "/VM/Switcher/ToGC/SysEnter", STAMUNIT_TICKS_PER_CALL,"Profiling switching to GC.");
891	STAM_REG(pVM, &pVM->StatSwitcherDebug, STAMTYPE_PROFILE_ADV, "/VM/Switcher/ToGC/Debug", STAMUNIT_TICKS_PER_CALL,"Profiling switching to GC.");
892	STAM_REG(pVM, &pVM->StatSwitcherCR0, STAMTYPE_PROFILE_ADV, "/VM/Switcher/ToGC/CR0", STAMUNIT_TICKS_PER_CALL, "Profiling switching to GC.");
893	STAM_REG(pVM, &pVM->StatSwitcherCR4, STAMTYPE_PROFILE_ADV, "/VM/Switcher/ToGC/CR4", STAMUNIT_TICKS_PER_CALL, "Profiling switching to GC.");
894	STAM_REG(pVM, &pVM->StatSwitcherLgdt, STAMTYPE_PROFILE_ADV, "/VM/Switcher/ToGC/Lgdt", STAMUNIT_TICKS_PER_CALL, "Profiling switching to GC.");
895	STAM_REG(pVM, &pVM->StatSwitcherLidt, STAMTYPE_PROFILE_ADV, "/VM/Switcher/ToGC/Lidt", STAMUNIT_TICKS_PER_CALL, "Profiling switching to GC.");
896	STAM_REG(pVM, &pVM->StatSwitcherLldt, STAMTYPE_PROFILE_ADV, "/VM/Switcher/ToGC/Lldt", STAMUNIT_TICKS_PER_CALL, "Profiling switching to GC.");
897	STAM_REG(pVM, &pVM->StatSwitcherTSS, STAMTYPE_PROFILE_ADV, "/VM/Switcher/ToGC/TSS", STAMUNIT_TICKS_PER_CALL, "Profiling switching to GC.");
898	STAM_REG(pVM, &pVM->StatSwitcherJmpCR3, STAMTYPE_PROFILE_ADV, "/VM/Switcher/ToGC/JmpCR3", STAMUNIT_TICKS_PER_CALL,"Profiling switching to GC.");
899	STAM_REG(pVM, &pVM->StatSwitcherRstrRegs, STAMTYPE_PROFILE_ADV, "/VM/Switcher/ToGC/RstrRegs", STAMUNIT_TICKS_PER_CALL,"Profiling switching to GC.");
900
901	for (VMCPUID idCpu = 0; idCpu < pVM->cCpus; idCpu++)
902	{
903	rc = STAMR3RegisterF(pVM, &pUVM->aCpus[idCpu].vm.s.StatHaltYield, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_NS_PER_CALL, "Profiling halted state yielding.", "/PROF/CPU%d/VM/Halt/Yield", idCpu);
904	AssertRC(rc);
905	rc = STAMR3RegisterF(pVM, &pUVM->aCpus[idCpu].vm.s.StatHaltBlock, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_NS_PER_CALL, "Profiling halted state blocking.", "/PROF/CPU%d/VM/Halt/Block", idCpu);
906	AssertRC(rc);
907	rc = STAMR3RegisterF(pVM, &pUVM->aCpus[idCpu].vm.s.StatHaltBlockOverslept, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_NS_PER_CALL, "Time wasted by blocking too long.", "/PROF/CPU%d/VM/Halt/BlockOverslept", idCpu);
908	AssertRC(rc);
909	rc = STAMR3RegisterF(pVM, &pUVM->aCpus[idCpu].vm.s.StatHaltBlockInsomnia, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_NS_PER_CALL, "Time slept when returning to early.","/PROF/CPU%d/VM/Halt/BlockInsomnia", idCpu);
910	AssertRC(rc);
911	rc = STAMR3RegisterF(pVM, &pUVM->aCpus[idCpu].vm.s.StatHaltBlockOnTime, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_NS_PER_CALL, "Time slept on time.", "/PROF/CPU%d/VM/Halt/BlockOnTime", idCpu);
912	AssertRC(rc);
913	rc = STAMR3RegisterF(pVM, &pUVM->aCpus[idCpu].vm.s.StatHaltTimers, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_NS_PER_CALL, "Profiling halted state timer tasks.", "/PROF/CPU%d/VM/Halt/Timers", idCpu);
914	AssertRC(rc);
915	}
916
917	STAM_REG(pVM, &pUVM->vm.s.StatReqAllocNew, STAMTYPE_COUNTER, "/VM/Req/AllocNew", STAMUNIT_OCCURENCES, "Number of VMR3ReqAlloc returning a new packet.");
918	STAM_REG(pVM, &pUVM->vm.s.StatReqAllocRaces, STAMTYPE_COUNTER, "/VM/Req/AllocRaces", STAMUNIT_OCCURENCES, "Number of VMR3ReqAlloc causing races.");
919	STAM_REG(pVM, &pUVM->vm.s.StatReqAllocRecycled, STAMTYPE_COUNTER, "/VM/Req/AllocRecycled", STAMUNIT_OCCURENCES, "Number of VMR3ReqAlloc returning a recycled packet.");
920	STAM_REG(pVM, &pUVM->vm.s.StatReqFree, STAMTYPE_COUNTER, "/VM/Req/Free", STAMUNIT_OCCURENCES, "Number of VMR3ReqFree calls.");
921	STAM_REG(pVM, &pUVM->vm.s.StatReqFreeOverflow, STAMTYPE_COUNTER, "/VM/Req/FreeOverflow", STAMUNIT_OCCURENCES, "Number of times the request was actually freed.");
922	STAM_REG(pVM, &pUVM->vm.s.StatReqProcessed, STAMTYPE_COUNTER, "/VM/Req/Processed", STAMUNIT_OCCURENCES, "Number of processed requests (any queue).");
923	STAM_REG(pVM, &pUVM->vm.s.StatReqMoreThan1, STAMTYPE_COUNTER, "/VM/Req/MoreThan1", STAMUNIT_OCCURENCES, "Number of times there are more than one request on the queue when processing it.");
924	STAM_REG(pVM, &pUVM->vm.s.StatReqPushBackRaces, STAMTYPE_COUNTER, "/VM/Req/PushBackRaces", STAMUNIT_OCCURENCES, "Number of push back races.");
925
926	/*
927	* Init all R3 components, the order here might be important.
928	* NEM and HM shall be initialized first!
929	*/
930	rc = NEMR3InitConfig(pVM);
931	if (RT_SUCCESS(rc))
932	rc = HMR3Init(pVM);
933	if (RT_SUCCESS(rc))
934	{
935	rc = MMR3Init(pVM);
936	if (RT_SUCCESS(rc))
937	{
938	rc = CPUMR3Init(pVM);
939	if (RT_SUCCESS(rc))
940	{
941	rc = PGMR3Init(pVM);
942	if (RT_SUCCESS(rc))
943	{
944	#ifdef VBOX_WITH_REM
945	rc = REMR3Init(pVM);
946	#endif
947	if (RT_SUCCESS(rc))
948	{
949	rc = MMR3InitPaging(pVM);
950	if (RT_SUCCESS(rc))
951	rc = TMR3Init(pVM);
952	if (RT_SUCCESS(rc))
953	{
954	rc = FTMR3Init(pVM);
955	if (RT_SUCCESS(rc))
956	{
957	rc = VMMR3Init(pVM);
958	if (RT_SUCCESS(rc))
959	{
960	rc = SELMR3Init(pVM);
961	if (RT_SUCCESS(rc))
962	{
963	rc = TRPMR3Init(pVM);
964	if (RT_SUCCESS(rc))
965	{
966	#ifdef VBOX_WITH_RAW_MODE
967	rc = CSAMR3Init(pVM);
968	if (RT_SUCCESS(rc))
969	{
970	rc = PATMR3Init(pVM);
971	if (RT_SUCCESS(rc))
972	{
973	#endif
974	rc = IOMR3Init(pVM);
975	if (RT_SUCCESS(rc))
976	{
977	rc = EMR3Init(pVM);
978	if (RT_SUCCESS(rc))
979	{
980	rc = IEMR3Init(pVM);
981	if (RT_SUCCESS(rc))
982	{
983	rc = DBGFR3Init(pVM);
984	if (RT_SUCCESS(rc))
985	{
986	/* GIM must be init'd before PDM, gimdevR3Construct()
987	requires GIM provider to be setup. */
988	rc = GIMR3Init(pVM);
989	if (RT_SUCCESS(rc))
990	{
991	rc = PDMR3Init(pVM);
992	if (RT_SUCCESS(rc))
993	{
994	rc = PGMR3InitDynMap(pVM);
995	if (RT_SUCCESS(rc))
996	rc = MMR3HyperInitFinalize(pVM);
997	#ifdef VBOX_WITH_RAW_MODE
998	if (RT_SUCCESS(rc))
999	rc = PATMR3InitFinalize(pVM);
1000	#endif
1001	if (RT_SUCCESS(rc))
1002	rc = PGMR3InitFinalize(pVM);
1003	if (RT_SUCCESS(rc))
1004	rc = SELMR3InitFinalize(pVM);
1005	if (RT_SUCCESS(rc))
1006	rc = TMR3InitFinalize(pVM);
1007	#ifdef VBOX_WITH_REM
1008	if (RT_SUCCESS(rc))
1009	rc = REMR3InitFinalize(pVM);
1010	#endif
1011	if (RT_SUCCESS(rc))
1012	{
1013	PGMR3MemSetup(pVM, false /fAtReset/);
1014	PDMR3MemSetup(pVM, false /fAtReset/);
1015	}
1016	if (RT_SUCCESS(rc))
1017	rc = vmR3InitDoCompleted(pVM, VMINITCOMPLETED_RING3);
1018	if (RT_SUCCESS(rc))
1019	{
1020	LogFlow(("vmR3InitRing3: returns %Rrc\n", VINF_SUCCESS));
1021	return VINF_SUCCESS;
1022	}
1023
1024	int rc2 = PDMR3Term(pVM);
1025	AssertRC(rc2);
1026	}
1027	int rc2 = GIMR3Term(pVM);
1028	AssertRC(rc2);
1029	}
1030	int rc2 = DBGFR3Term(pVM);
1031	AssertRC(rc2);
1032	}
1033	int rc2 = IEMR3Term(pVM);
1034	AssertRC(rc2);
1035	}
1036	int rc2 = EMR3Term(pVM);
1037	AssertRC(rc2);
1038	}
1039	int rc2 = IOMR3Term(pVM);
1040	AssertRC(rc2);
1041	}
1042	#ifdef VBOX_WITH_RAW_MODE
1043	int rc2 = PATMR3Term(pVM);
1044	AssertRC(rc2);
1045	}
1046	int rc2 = CSAMR3Term(pVM);
1047	AssertRC(rc2);
1048	}
1049	#endif
1050	int rc2 = TRPMR3Term(pVM);
1051	AssertRC(rc2);
1052	}
1053	int rc2 = SELMR3Term(pVM);
1054	AssertRC(rc2);
1055	}
1056	int rc2 = VMMR3Term(pVM);
1057	AssertRC(rc2);
1058	}
1059	int rc2 = FTMR3Term(pVM);
1060	AssertRC(rc2);
1061	}
1062	int rc2 = TMR3Term(pVM);
1063	AssertRC(rc2);
1064	}
1065	#ifdef VBOX_WITH_REM
1066	int rc2 = REMR3Term(pVM);
1067	AssertRC(rc2);
1068	#endif
1069	}
1070	int rc2 = PGMR3Term(pVM);
1071	AssertRC(rc2);
1072	}
1073	//int rc2 = CPUMR3Term(pVM);
1074	//AssertRC(rc2);
1075	}
1076	/* MMR3Term is not called here because it'll kill the heap. */
1077	}
1078	int rc2 = HMR3Term(pVM);
1079	AssertRC(rc2);
1080	}
1081	NEMR3Term(pVM);
1082
1083	LogFlow(("vmR3InitRing3: returns %Rrc\n", rc));
1084	return rc;
1085	}
1086
1087
1088	/**
1089	* Initializes all R0 components of the VM
1090	*/
1091	static int vmR3InitRing0(PVM pVM)
1092	{
1093	LogFlow(("vmR3InitRing0:\n"));
1094
1095	/*
1096	* Check for FAKE suplib mode.
1097	*/
1098	int rc = VINF_SUCCESS;
1099	const char *psz = RTEnvGet("VBOX_SUPLIB_FAKE");
1100	if (!psz \|\| strcmp(psz, "fake"))
1101	{
1102	/*
1103	* Call the VMMR0 component and let it do the init.
1104	*/
1105	rc = VMMR3InitR0(pVM);
1106	}
1107	else
1108	Log(("vmR3InitRing0: skipping because of VBOX_SUPLIB_FAKE=fake\n"));
1109
1110	/*
1111	* Do notifications and return.
1112	*/
1113	if (RT_SUCCESS(rc))
1114	rc = vmR3InitDoCompleted(pVM, VMINITCOMPLETED_RING0);
1115	if (RT_SUCCESS(rc))
1116	rc = vmR3InitDoCompleted(pVM, VMINITCOMPLETED_HM);
1117
1118	/** @todo Move this to the VMINITCOMPLETED_HM notification handler. */
1119	if (RT_SUCCESS(rc))
1120	CPUMR3SetHWVirtEx(pVM, HMIsEnabled(pVM));
1121
1122	LogFlow(("vmR3InitRing0: returns %Rrc\n", rc));
1123	return rc;
1124	}
1125
1126
1127	#ifdef VBOX_WITH_RAW_MODE
1128	/**
1129	* Initializes all RC components of the VM
1130	*/
1131	static int vmR3InitRC(PVM pVM)
1132	{
1133	LogFlow(("vmR3InitRC:\n"));
1134
1135	/*
1136	* Check for FAKE suplib mode.
1137	*/
1138	int rc = VINF_SUCCESS;
1139	const char *psz = RTEnvGet("VBOX_SUPLIB_FAKE");
1140	if (!psz \|\| strcmp(psz, "fake"))
1141	{
1142	/*
1143	* Call the VMMR0 component and let it do the init.
1144	*/
1145	rc = VMMR3InitRC(pVM);
1146	}
1147	else
1148	Log(("vmR3InitRC: skipping because of VBOX_SUPLIB_FAKE=fake\n"));
1149
1150	/*
1151	* Do notifications and return.
1152	*/
1153	if (RT_SUCCESS(rc))
1154	rc = vmR3InitDoCompleted(pVM, VMINITCOMPLETED_RC);
1155	LogFlow(("vmR3InitRC: returns %Rrc\n", rc));
1156	return rc;
1157	}
1158	#endif /* VBOX_WITH_RAW_MODE */
1159
1160
1161	/**
1162	* Do init completed notifications.
1163	*
1164	* @returns VBox status code.
1165	* @param pVM The cross context VM structure.
1166	* @param enmWhat What's completed.
1167	*/
1168	static int vmR3InitDoCompleted(PVM pVM, VMINITCOMPLETED enmWhat)
1169	{
1170	int rc = VMMR3InitCompleted(pVM, enmWhat);
1171	if (RT_SUCCESS(rc))
1172	rc = HMR3InitCompleted(pVM, enmWhat);
1173	if (RT_SUCCESS(rc))
1174	rc = NEMR3InitCompleted(pVM, enmWhat);
1175	if (RT_SUCCESS(rc))
1176	rc = PGMR3InitCompleted(pVM, enmWhat);
1177	if (RT_SUCCESS(rc))
1178	rc = CPUMR3InitCompleted(pVM, enmWhat);
1179	if (enmWhat == VMINITCOMPLETED_RING3)
1180	{
1181	#ifndef VBOX_WITH_RAW_MODE
1182	if (RT_SUCCESS(rc))
1183	rc = SSMR3RegisterStub(pVM, "CSAM", 0);
1184	if (RT_SUCCESS(rc))
1185	rc = SSMR3RegisterStub(pVM, "PATM", 0);
1186	#endif
1187	#ifndef VBOX_WITH_REM
1188	if (RT_SUCCESS(rc))
1189	rc = SSMR3RegisterStub(pVM, "rem", 1);
1190	#endif
1191	}
1192	if (RT_SUCCESS(rc))
1193	rc = PDMR3InitCompleted(pVM, enmWhat);
1194	return rc;
1195	}
1196
1197
1198	#ifdef LOG_ENABLED
1199	/**
1200	* Logger callback for inserting a custom prefix.
1201	*
1202	* @returns Number of chars written.
1203	* @param pLogger The logger.
1204	* @param pchBuf The output buffer.
1205	* @param cchBuf The output buffer size.
1206	* @param pvUser Pointer to the UVM structure.
1207	*/
1208	static DECLCALLBACK(size_t) vmR3LogPrefixCallback(PRTLOGGER pLogger, char pchBuf, size_t cchBuf, void pvUser)
1209	{
1210	AssertReturn(cchBuf >= 2, 0);
1211	PUVM pUVM = (PUVM)pvUser;
1212	PUVMCPU pUVCpu = (PUVMCPU)RTTlsGet(pUVM->vm.s.idxTLS);
1213	if (pUVCpu)
1214	{
1215	static const char s_szHex[17] = "0123456789abcdef";
1216	VMCPUID const idCpu = pUVCpu->idCpu;
1217	pchBuf[1] = s_szHex[ idCpu & 15];
1218	pchBuf[0] = s_szHex[(idCpu >> 4) & 15];
1219	}
1220	else
1221	{
1222	pchBuf[0] = 'x';
1223	pchBuf[1] = 'y';
1224	}
1225
1226	NOREF(pLogger);
1227	return 2;
1228	}
1229	#endif /* LOG_ENABLED */
1230
1231
1232	/**
1233	* Calls the relocation functions for all VMM components so they can update
1234	* any GC pointers. When this function is called all the basic VM members
1235	* have been updated and the actual memory relocation have been done
1236	* by the PGM/MM.
1237	*
1238	* This is used both on init and on runtime relocations.
1239	*
1240	* @param pVM The cross context VM structure.
1241	* @param offDelta Relocation delta relative to old location.
1242	*/
1243	VMMR3_INT_DECL(void) VMR3Relocate(PVM pVM, RTGCINTPTR offDelta)
1244	{
1245	LogFlow(("VMR3Relocate: offDelta=%RGv\n", offDelta));
1246
1247	/*
1248	* The order here is very important!
1249	*/
1250	PGMR3Relocate(pVM, offDelta);
1251	PDMR3LdrRelocateU(pVM->pUVM, offDelta);
1252	PGMR3Relocate(pVM, 0); /* Repeat after PDM relocation. */
1253	CPUMR3Relocate(pVM);
1254	HMR3Relocate(pVM);
1255	SELMR3Relocate(pVM);
1256	VMMR3Relocate(pVM, offDelta);
1257	SELMR3Relocate(pVM); /* !hack! fix stack! */
1258	TRPMR3Relocate(pVM, offDelta);
1259	#ifdef VBOX_WITH_RAW_MODE
1260	PATMR3Relocate(pVM, (RTRCINTPTR)offDelta);
1261	CSAMR3Relocate(pVM, offDelta);
1262	#endif
1263	IOMR3Relocate(pVM, offDelta);
1264	EMR3Relocate(pVM);
1265	TMR3Relocate(pVM, offDelta);
1266	IEMR3Relocate(pVM);
1267	DBGFR3Relocate(pVM, offDelta);
1268	PDMR3Relocate(pVM, offDelta);
1269	GIMR3Relocate(pVM, offDelta);
1270	}
1271
1272
1273	/**
1274	* EMT rendezvous worker for VMR3PowerOn.
1275	*
1276	* @returns VERR_VM_INVALID_VM_STATE or VINF_SUCCESS. (This is a strict return
1277	* code, see FNVMMEMTRENDEZVOUS.)
1278	*
1279	* @param pVM The cross context VM structure.
1280	* @param pVCpu The cross context virtual CPU structure of the calling EMT.
1281	* @param pvUser Ignored.
1282	*/
1283	static DECLCALLBACK(VBOXSTRICTRC) vmR3PowerOn(PVM pVM, PVMCPU pVCpu, void *pvUser)
1284	{
1285	LogFlow(("vmR3PowerOn: pVM=%p pVCpu=%p/#%u\n", pVM, pVCpu, pVCpu->idCpu));
1286	Assert(!pvUser); NOREF(pvUser);
1287
1288	/*
1289	* The first thread thru here tries to change the state. We shouldn't be
1290	* called again if this fails.
1291	*/
1292	if (pVCpu->idCpu == pVM->cCpus - 1)
1293	{
1294	int rc = vmR3TrySetState(pVM, "VMR3PowerOn", 1, VMSTATE_POWERING_ON, VMSTATE_CREATED);
1295	if (RT_FAILURE(rc))
1296	return rc;
1297	}
1298
1299	VMSTATE enmVMState = VMR3GetState(pVM);
1300	AssertMsgReturn(enmVMState == VMSTATE_POWERING_ON,
1301	("%s\n", VMR3GetStateName(enmVMState)),
1302	VERR_VM_UNEXPECTED_UNSTABLE_STATE);
1303
1304	/*
1305	* All EMTs changes their state to started.
1306	*/
1307	VMCPU_SET_STATE(pVCpu, VMCPUSTATE_STARTED);
1308
1309	/*
1310	* EMT(0) is last thru here and it will make the notification calls
1311	* and advance the state.
1312	*/
1313	if (pVCpu->idCpu == 0)
1314	{
1315	PDMR3PowerOn(pVM);
1316	vmR3SetState(pVM, VMSTATE_RUNNING, VMSTATE_POWERING_ON);
1317	}
1318
1319	return VINF_SUCCESS;
1320	}
1321
1322
1323	/**
1324	* Powers on the virtual machine.
1325	*
1326	* @returns VBox status code.
1327	*
1328	* @param pUVM The VM to power on.
1329	*
1330	* @thread Any thread.
1331	* @vmstate Created
1332	* @vmstateto PoweringOn+Running
1333	*/
1334	VMMR3DECL(int) VMR3PowerOn(PUVM pUVM)
1335	{
1336	LogFlow(("VMR3PowerOn: pUVM=%p\n", pUVM));
1337	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
1338	PVM pVM = pUVM->pVM;
1339	VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
1340
1341	/*
1342	* Gather all the EMTs to reduce the init TSC drift and keep
1343	* the state changing APIs a bit uniform.
1344	*/
1345	int rc = VMMR3EmtRendezvous(pVM, VMMEMTRENDEZVOUS_FLAGS_TYPE_DESCENDING \| VMMEMTRENDEZVOUS_FLAGS_STOP_ON_ERROR,
1346	vmR3PowerOn, NULL);
1347	LogFlow(("VMR3PowerOn: returns %Rrc\n", rc));
1348	return rc;
1349	}
1350
1351
1352	/**
1353	* Does the suspend notifications.
1354	*
1355	* @param pVM The cross context VM structure.
1356	* @thread EMT(0)
1357	*/
1358	static void vmR3SuspendDoWork(PVM pVM)
1359	{
1360	PDMR3Suspend(pVM);
1361	}
1362
1363
1364	/**
1365	* EMT rendezvous worker for VMR3Suspend.
1366	*
1367	* @returns VERR_VM_INVALID_VM_STATE or VINF_EM_SUSPEND. (This is a strict
1368	* return code, see FNVMMEMTRENDEZVOUS.)
1369	*
1370	* @param pVM The cross context VM structure.
1371	* @param pVCpu The cross context virtual CPU structure of the calling EMT.
1372	* @param pvUser Ignored.
1373	*/
1374	static DECLCALLBACK(VBOXSTRICTRC) vmR3Suspend(PVM pVM, PVMCPU pVCpu, void *pvUser)
1375	{
1376	VMSUSPENDREASON enmReason = (VMSUSPENDREASON)(uintptr_t)pvUser;
1377	LogFlow(("vmR3Suspend: pVM=%p pVCpu=%p/#%u enmReason=%d\n", pVM, pVCpu, pVCpu->idCpu, enmReason));
1378
1379	/*
1380	* The first EMT switches the state to suspending. If this fails because
1381	* something was racing us in one way or the other, there will be no more
1382	* calls and thus the state assertion below is not going to annoy anyone.
1383	*/
1384	if (pVCpu->idCpu == pVM->cCpus - 1)
1385	{
1386	int rc = vmR3TrySetState(pVM, "VMR3Suspend", 2,
1387	VMSTATE_SUSPENDING, VMSTATE_RUNNING,
1388	VMSTATE_SUSPENDING_EXT_LS, VMSTATE_RUNNING_LS);
1389	if (RT_FAILURE(rc))
1390	return rc;
1391	pVM->pUVM->vm.s.enmSuspendReason = enmReason;
1392	}
1393
1394	VMSTATE enmVMState = VMR3GetState(pVM);
1395	AssertMsgReturn( enmVMState == VMSTATE_SUSPENDING
1396	\|\| enmVMState == VMSTATE_SUSPENDING_EXT_LS,
1397	("%s\n", VMR3GetStateName(enmVMState)),
1398	VERR_VM_UNEXPECTED_UNSTABLE_STATE);
1399
1400	/*
1401	* EMT(0) does the actually suspending after all the other CPUs have
1402	* been thru here.
1403	*/
1404	if (pVCpu->idCpu == 0)
1405	{
1406	vmR3SuspendDoWork(pVM);
1407
1408	int rc = vmR3TrySetState(pVM, "VMR3Suspend", 2,
1409	VMSTATE_SUSPENDED, VMSTATE_SUSPENDING,
1410	VMSTATE_SUSPENDED_EXT_LS, VMSTATE_SUSPENDING_EXT_LS);
1411	if (RT_FAILURE(rc))
1412	return VERR_VM_UNEXPECTED_UNSTABLE_STATE;
1413	}
1414
1415	return VINF_EM_SUSPEND;
1416	}
1417
1418
1419	/**
1420	* Suspends a running VM.
1421	*
1422	* @returns VBox status code. When called on EMT, this will be a strict status
1423	* code that has to be propagated up the call stack.
1424	*
1425	* @param pUVM The VM to suspend.
1426	* @param enmReason The reason for suspending.
1427	*
1428	* @thread Any thread.
1429	* @vmstate Running or RunningLS
1430	* @vmstateto Suspending + Suspended or SuspendingExtLS + SuspendedExtLS
1431	*/
1432	VMMR3DECL(int) VMR3Suspend(PUVM pUVM, VMSUSPENDREASON enmReason)
1433	{
1434	LogFlow(("VMR3Suspend: pUVM=%p\n", pUVM));
1435	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
1436	AssertReturn(enmReason > VMSUSPENDREASON_INVALID && enmReason < VMSUSPENDREASON_END, VERR_INVALID_PARAMETER);
1437
1438	/*
1439	* Gather all the EMTs to make sure there are no races before
1440	* changing the VM state.
1441	*/
1442	int rc = VMMR3EmtRendezvous(pUVM->pVM, VMMEMTRENDEZVOUS_FLAGS_TYPE_DESCENDING \| VMMEMTRENDEZVOUS_FLAGS_STOP_ON_ERROR,
1443	vmR3Suspend, (void *)(uintptr_t)enmReason);
1444	LogFlow(("VMR3Suspend: returns %Rrc\n", rc));
1445	return rc;
1446	}
1447
1448
1449	/**
1450	* Retrieves the reason for the most recent suspend.
1451	*
1452	* @returns Suspend reason. VMSUSPENDREASON_INVALID if no suspend has been done
1453	* or the handle is invalid.
1454	* @param pUVM The user mode VM handle.
1455	*/
1456	VMMR3DECL(VMSUSPENDREASON) VMR3GetSuspendReason(PUVM pUVM)
1457	{
1458	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VMSUSPENDREASON_INVALID);
1459	return pUVM->vm.s.enmSuspendReason;
1460	}
1461
1462
1463	/**
1464	* EMT rendezvous worker for VMR3Resume.
1465	*
1466	* @returns VERR_VM_INVALID_VM_STATE or VINF_EM_RESUME. (This is a strict
1467	* return code, see FNVMMEMTRENDEZVOUS.)
1468	*
1469	* @param pVM The cross context VM structure.
1470	* @param pVCpu The cross context virtual CPU structure of the calling EMT.
1471	* @param pvUser Reason.
1472	*/
1473	static DECLCALLBACK(VBOXSTRICTRC) vmR3Resume(PVM pVM, PVMCPU pVCpu, void *pvUser)
1474	{
1475	VMRESUMEREASON enmReason = (VMRESUMEREASON)(uintptr_t)pvUser;
1476	LogFlow(("vmR3Resume: pVM=%p pVCpu=%p/#%u enmReason=%d\n", pVM, pVCpu, pVCpu->idCpu, enmReason));
1477
1478	/*
1479	* The first thread thru here tries to change the state. We shouldn't be
1480	* called again if this fails.
1481	*/
1482	if (pVCpu->idCpu == pVM->cCpus - 1)
1483	{
1484	int rc = vmR3TrySetState(pVM, "VMR3Resume", 1, VMSTATE_RESUMING, VMSTATE_SUSPENDED);
1485	if (RT_FAILURE(rc))
1486	return rc;
1487	pVM->pUVM->vm.s.enmResumeReason = enmReason;
1488	}
1489
1490	VMSTATE enmVMState = VMR3GetState(pVM);
1491	AssertMsgReturn(enmVMState == VMSTATE_RESUMING,
1492	("%s\n", VMR3GetStateName(enmVMState)),
1493	VERR_VM_UNEXPECTED_UNSTABLE_STATE);
1494
1495	#if 0
1496	/*
1497	* All EMTs changes their state to started.
1498	*/
1499	VMCPU_SET_STATE(pVCpu, VMCPUSTATE_STARTED);
1500	#endif
1501
1502	/*
1503	* EMT(0) is last thru here and it will make the notification calls
1504	* and advance the state.
1505	*/
1506	if (pVCpu->idCpu == 0)
1507	{
1508	PDMR3Resume(pVM);
1509	vmR3SetState(pVM, VMSTATE_RUNNING, VMSTATE_RESUMING);
1510	pVM->vm.s.fTeleportedAndNotFullyResumedYet = false;
1511	}
1512
1513	return VINF_EM_RESUME;
1514	}
1515
1516
1517	/**
1518	* Resume VM execution.
1519	*
1520	* @returns VBox status code. When called on EMT, this will be a strict status
1521	* code that has to be propagated up the call stack.
1522	*
1523	* @param pUVM The user mode VM handle.
1524	* @param enmReason The reason we're resuming.
1525	*
1526	* @thread Any thread.
1527	* @vmstate Suspended
1528	* @vmstateto Running
1529	*/
1530	VMMR3DECL(int) VMR3Resume(PUVM pUVM, VMRESUMEREASON enmReason)
1531	{
1532	LogFlow(("VMR3Resume: pUVM=%p\n", pUVM));
1533	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
1534	PVM pVM = pUVM->pVM;
1535	VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
1536	AssertReturn(enmReason > VMRESUMEREASON_INVALID && enmReason < VMRESUMEREASON_END, VERR_INVALID_PARAMETER);
1537
1538	/*
1539	* Gather all the EMTs to make sure there are no races before
1540	* changing the VM state.
1541	*/
1542	int rc = VMMR3EmtRendezvous(pVM, VMMEMTRENDEZVOUS_FLAGS_TYPE_DESCENDING \| VMMEMTRENDEZVOUS_FLAGS_STOP_ON_ERROR,
1543	vmR3Resume, (void *)(uintptr_t)enmReason);
1544	LogFlow(("VMR3Resume: returns %Rrc\n", rc));
1545	return rc;
1546	}
1547
1548
1549	/**
1550	* Retrieves the reason for the most recent resume.
1551	*
1552	* @returns Resume reason. VMRESUMEREASON_INVALID if no suspend has been
1553	* done or the handle is invalid.
1554	* @param pUVM The user mode VM handle.
1555	*/
1556	VMMR3DECL(VMRESUMEREASON) VMR3GetResumeReason(PUVM pUVM)
1557	{
1558	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VMRESUMEREASON_INVALID);
1559	return pUVM->vm.s.enmResumeReason;
1560	}
1561
1562
1563	/**
1564	* EMT rendezvous worker for VMR3Save and VMR3Teleport that suspends the VM
1565	* after the live step has been completed.
1566	*
1567	* @returns VERR_VM_INVALID_VM_STATE or VINF_EM_RESUME. (This is a strict
1568	* return code, see FNVMMEMTRENDEZVOUS.)
1569	*
1570	* @param pVM The cross context VM structure.
1571	* @param pVCpu The cross context virtual CPU structure of the calling EMT.
1572	* @param pvUser The pfSuspended argument of vmR3SaveTeleport.
1573	*/
1574	static DECLCALLBACK(VBOXSTRICTRC) vmR3LiveDoSuspend(PVM pVM, PVMCPU pVCpu, void *pvUser)
1575	{
1576	LogFlow(("vmR3LiveDoSuspend: pVM=%p pVCpu=%p/#%u\n", pVM, pVCpu, pVCpu->idCpu));
1577	bool pfSuspended = (bool )pvUser;
1578
1579	/*
1580	* The first thread thru here tries to change the state. We shouldn't be
1581	* called again if this fails.
1582	*/
1583	if (pVCpu->idCpu == pVM->cCpus - 1U)
1584	{
1585	PUVM pUVM = pVM->pUVM;
1586	int rc;
1587
1588	RTCritSectEnter(&pUVM->vm.s.AtStateCritSect);
1589	VMSTATE enmVMState = pVM->enmVMState;
1590	switch (enmVMState)
1591	{
1592	case VMSTATE_RUNNING_LS:
1593	vmR3SetStateLocked(pVM, pUVM, VMSTATE_SUSPENDING_LS, VMSTATE_RUNNING_LS, false /fSetRatherThanClearFF/);
1594	rc = VINF_SUCCESS;
1595	break;
1596
1597	case VMSTATE_SUSPENDED_EXT_LS:
1598	case VMSTATE_SUSPENDED_LS: /* (via reset) */
1599	rc = VINF_SUCCESS;
1600	break;
1601
1602	case VMSTATE_DEBUGGING_LS:
1603	rc = VERR_TRY_AGAIN;
1604	break;
1605
1606	case VMSTATE_OFF_LS:
1607	vmR3SetStateLocked(pVM, pUVM, VMSTATE_OFF, VMSTATE_OFF_LS, false /fSetRatherThanClearFF/);
1608	rc = VERR_SSM_LIVE_POWERED_OFF;
1609	break;
1610
1611	case VMSTATE_FATAL_ERROR_LS:
1612	vmR3SetStateLocked(pVM, pUVM, VMSTATE_FATAL_ERROR, VMSTATE_FATAL_ERROR_LS, false /fSetRatherThanClearFF/);
1613	rc = VERR_SSM_LIVE_FATAL_ERROR;
1614	break;
1615
1616	case VMSTATE_GURU_MEDITATION_LS:
1617	vmR3SetStateLocked(pVM, pUVM, VMSTATE_GURU_MEDITATION, VMSTATE_GURU_MEDITATION_LS, false /fSetRatherThanClearFF/);
1618	rc = VERR_SSM_LIVE_GURU_MEDITATION;
1619	break;
1620
1621	case VMSTATE_POWERING_OFF_LS:
1622	case VMSTATE_SUSPENDING_EXT_LS:
1623	case VMSTATE_RESETTING_LS:
1624	default:
1625	AssertMsgFailed(("%s\n", VMR3GetStateName(enmVMState)));
1626	rc = VERR_VM_UNEXPECTED_VM_STATE;
1627	break;
1628	}
1629	RTCritSectLeave(&pUVM->vm.s.AtStateCritSect);
1630	if (RT_FAILURE(rc))
1631	{
1632	LogFlow(("vmR3LiveDoSuspend: returns %Rrc (state was %s)\n", rc, VMR3GetStateName(enmVMState)));
1633	return rc;
1634	}
1635	}
1636
1637	VMSTATE enmVMState = VMR3GetState(pVM);
1638	AssertMsgReturn(enmVMState == VMSTATE_SUSPENDING_LS,
1639	("%s\n", VMR3GetStateName(enmVMState)),
1640	VERR_VM_UNEXPECTED_UNSTABLE_STATE);
1641
1642	/*
1643	* Only EMT(0) have work to do since it's last thru here.
1644	*/
1645	if (pVCpu->idCpu == 0)
1646	{
1647	vmR3SuspendDoWork(pVM);
1648	int rc = vmR3TrySetState(pVM, "VMR3Suspend", 1,
1649	VMSTATE_SUSPENDED_LS, VMSTATE_SUSPENDING_LS);
1650	if (RT_FAILURE(rc))
1651	return VERR_VM_UNEXPECTED_UNSTABLE_STATE;
1652
1653	*pfSuspended = true;
1654	}
1655
1656	return VINF_EM_SUSPEND;
1657	}
1658
1659
1660	/**
1661	* EMT rendezvous worker that VMR3Save and VMR3Teleport uses to clean up a
1662	* SSMR3LiveDoStep1 failure.
1663	*
1664	* Doing this as a rendezvous operation avoids all annoying transition
1665	* states.
1666	*
1667	* @returns VERR_VM_INVALID_VM_STATE, VINF_SUCCESS or some specific VERR_SSM_*
1668	* status code. (This is a strict return code, see FNVMMEMTRENDEZVOUS.)
1669	*
1670	* @param pVM The cross context VM structure.
1671	* @param pVCpu The cross context virtual CPU structure of the calling EMT.
1672	* @param pvUser The pfSuspended argument of vmR3SaveTeleport.
1673	*/
1674	static DECLCALLBACK(VBOXSTRICTRC) vmR3LiveDoStep1Cleanup(PVM pVM, PVMCPU pVCpu, void *pvUser)
1675	{
1676	LogFlow(("vmR3LiveDoStep1Cleanup: pVM=%p pVCpu=%p/#%u\n", pVM, pVCpu, pVCpu->idCpu));
1677	bool pfSuspended = (bool )pvUser;
1678	NOREF(pVCpu);
1679
1680	int rc = vmR3TrySetState(pVM, "vmR3LiveDoStep1Cleanup", 8,
1681	VMSTATE_OFF, VMSTATE_OFF_LS, /* 1 */
1682	VMSTATE_FATAL_ERROR, VMSTATE_FATAL_ERROR_LS, /* 2 */
1683	VMSTATE_GURU_MEDITATION, VMSTATE_GURU_MEDITATION_LS, /* 3 */
1684	VMSTATE_SUSPENDED, VMSTATE_SUSPENDED_LS, /* 4 */
1685	VMSTATE_SUSPENDED, VMSTATE_SAVING,
1686	VMSTATE_SUSPENDED, VMSTATE_SUSPENDED_EXT_LS,
1687	VMSTATE_RUNNING, VMSTATE_RUNNING_LS,
1688	VMSTATE_DEBUGGING, VMSTATE_DEBUGGING_LS);
1689	if (rc == 1)
1690	rc = VERR_SSM_LIVE_POWERED_OFF;
1691	else if (rc == 2)
1692	rc = VERR_SSM_LIVE_FATAL_ERROR;
1693	else if (rc == 3)
1694	rc = VERR_SSM_LIVE_GURU_MEDITATION;
1695	else if (rc == 4)
1696	{
1697	*pfSuspended = true;
1698	rc = VINF_SUCCESS;
1699	}
1700	else if (rc > 0)
1701	rc = VINF_SUCCESS;
1702	return rc;
1703	}
1704
1705
1706	/**
1707	* EMT(0) worker for VMR3Save and VMR3Teleport that completes the live save.
1708	*
1709	* @returns VBox status code.
1710	* @retval VINF_SSM_LIVE_SUSPENDED if VMR3Suspend was called.
1711	*
1712	* @param pVM The cross context VM structure.
1713	* @param pSSM The handle of saved state operation.
1714	*
1715	* @thread EMT(0)
1716	*/
1717	static DECLCALLBACK(int) vmR3LiveDoStep2(PVM pVM, PSSMHANDLE pSSM)
1718	{
1719	LogFlow(("vmR3LiveDoStep2: pVM=%p pSSM=%p\n", pVM, pSSM));
1720	VM_ASSERT_EMT0(pVM);
1721
1722	/*
1723	* Advance the state and mark if VMR3Suspend was called.
1724	*/
1725	int rc = VINF_SUCCESS;
1726	VMSTATE enmVMState = VMR3GetState(pVM);
1727	if (enmVMState == VMSTATE_SUSPENDED_LS)
1728	vmR3SetState(pVM, VMSTATE_SAVING, VMSTATE_SUSPENDED_LS);
1729	else
1730	{
1731	if (enmVMState != VMSTATE_SAVING)
1732	vmR3SetState(pVM, VMSTATE_SAVING, VMSTATE_SUSPENDED_EXT_LS);
1733	rc = VINF_SSM_LIVE_SUSPENDED;
1734	}
1735
1736	/*
1737	* Finish up and release the handle. Careful with the status codes.
1738	*/
1739	int rc2 = SSMR3LiveDoStep2(pSSM);
1740	if (rc == VINF_SUCCESS \|\| (RT_FAILURE(rc2) && RT_SUCCESS(rc)))
1741	rc = rc2;
1742
1743	rc2 = SSMR3LiveDone(pSSM);
1744	if (rc == VINF_SUCCESS \|\| (RT_FAILURE(rc2) && RT_SUCCESS(rc)))
1745	rc = rc2;
1746
1747	/*
1748	* Advance to the final state and return.
1749	*/
1750	vmR3SetState(pVM, VMSTATE_SUSPENDED, VMSTATE_SAVING);
1751	Assert(rc > VINF_EM_LAST \|\| rc < VINF_EM_FIRST);
1752	return rc;
1753	}
1754
1755
1756	/**
1757	* Worker for vmR3SaveTeleport that validates the state and calls SSMR3Save or
1758	* SSMR3LiveSave.
1759	*
1760	* @returns VBox status code.
1761	*
1762	* @param pVM The cross context VM structure.
1763	* @param cMsMaxDowntime The maximum downtime given as milliseconds.
1764	* @param pszFilename The name of the file. NULL if pStreamOps is used.
1765	* @param pStreamOps The stream methods. NULL if pszFilename is used.
1766	* @param pvStreamOpsUser The user argument to the stream methods.
1767	* @param enmAfter What to do afterwards.
1768	* @param pfnProgress Progress callback. Optional.
1769	* @param pvProgressUser User argument for the progress callback.
1770	* @param ppSSM Where to return the saved state handle in case of a
1771	* live snapshot scenario.
1772	* @param fSkipStateChanges Set if we're supposed to skip state changes (FTM delta case)
1773	*
1774	* @thread EMT
1775	*/
1776	static DECLCALLBACK(int) vmR3Save(PVM pVM, uint32_t cMsMaxDowntime, const char pszFilename, PCSSMSTRMOPS pStreamOps, void pvStreamOpsUser,
1777	SSMAFTER enmAfter, PFNVMPROGRESS pfnProgress, void pvProgressUser, PSSMHANDLE ppSSM,
1778	bool fSkipStateChanges)
1779	{
1780	int rc = VINF_SUCCESS;
1781
1782	LogFlow(("vmR3Save: pVM=%p cMsMaxDowntime=%u pszFilename=%p:{%s} pStreamOps=%p pvStreamOpsUser=%p enmAfter=%d pfnProgress=%p pvProgressUser=%p ppSSM=%p\n",
1783	pVM, cMsMaxDowntime, pszFilename, pszFilename, pStreamOps, pvStreamOpsUser, enmAfter, pfnProgress, pvProgressUser, ppSSM));
1784
1785	/*
1786	* Validate input.
1787	*/
1788	AssertPtrNull(pszFilename);
1789	AssertPtrNull(pStreamOps);
1790	AssertPtr(pVM);
1791	Assert( enmAfter == SSMAFTER_DESTROY
1792	\|\| enmAfter == SSMAFTER_CONTINUE
1793	\|\| enmAfter == SSMAFTER_TELEPORT);
1794	AssertPtr(ppSSM);
1795	*ppSSM = NULL;
1796
1797	/*
1798	* Change the state and perform/start the saving.
1799	*/
1800	if (!fSkipStateChanges)
1801	{
1802	rc = vmR3TrySetState(pVM, "VMR3Save", 2,
1803	VMSTATE_SAVING, VMSTATE_SUSPENDED,
1804	VMSTATE_RUNNING_LS, VMSTATE_RUNNING);
1805	}
1806	else
1807	{
1808	Assert(enmAfter != SSMAFTER_TELEPORT);
1809	rc = 1;
1810	}
1811
1812	if (rc == 1 && enmAfter != SSMAFTER_TELEPORT)
1813	{
1814	rc = SSMR3Save(pVM, pszFilename, pStreamOps, pvStreamOpsUser, enmAfter, pfnProgress, pvProgressUser);
1815	if (!fSkipStateChanges)
1816	vmR3SetState(pVM, VMSTATE_SUSPENDED, VMSTATE_SAVING);
1817	}
1818	else if (rc == 2 \|\| enmAfter == SSMAFTER_TELEPORT)
1819	{
1820	Assert(!fSkipStateChanges);
1821	if (enmAfter == SSMAFTER_TELEPORT)
1822	pVM->vm.s.fTeleportedAndNotFullyResumedYet = true;
1823	rc = SSMR3LiveSave(pVM, cMsMaxDowntime, pszFilename, pStreamOps, pvStreamOpsUser,
1824	enmAfter, pfnProgress, pvProgressUser, ppSSM);
1825	/* (We're not subject to cancellation just yet.) */
1826	}
1827	else
1828	Assert(RT_FAILURE(rc));
1829	return rc;
1830	}
1831
1832
1833	/**
1834	* Common worker for VMR3Save and VMR3Teleport.
1835	*
1836	* @returns VBox status code.
1837	*
1838	* @param pVM The cross context VM structure.
1839	* @param cMsMaxDowntime The maximum downtime given as milliseconds.
1840	* @param pszFilename The name of the file. NULL if pStreamOps is used.
1841	* @param pStreamOps The stream methods. NULL if pszFilename is used.
1842	* @param pvStreamOpsUser The user argument to the stream methods.
1843	* @param enmAfter What to do afterwards.
1844	* @param pfnProgress Progress callback. Optional.
1845	* @param pvProgressUser User argument for the progress callback.
1846	* @param pfSuspended Set if we suspended the VM.
1847	* @param fSkipStateChanges Set if we're supposed to skip state changes (FTM delta case)
1848	*
1849	* @thread Non-EMT
1850	*/
1851	static int vmR3SaveTeleport(PVM pVM, uint32_t cMsMaxDowntime,
1852	const char pszFilename, PCSSMSTRMOPS pStreamOps, void pvStreamOpsUser,
1853	SSMAFTER enmAfter, PFNVMPROGRESS pfnProgress, void pvProgressUser, bool pfSuspended,
1854	bool fSkipStateChanges)
1855	{
1856	/*
1857	* Request the operation in EMT(0).
1858	*/
1859	PSSMHANDLE pSSM;
1860	int rc = VMR3ReqCallWait(pVM, 0 /idDstCpu/,
1861	(PFNRT)vmR3Save, 10, pVM, cMsMaxDowntime, pszFilename, pStreamOps, pvStreamOpsUser,
1862	enmAfter, pfnProgress, pvProgressUser, &pSSM, fSkipStateChanges);
1863	if ( RT_SUCCESS(rc)
1864	&& pSSM)
1865	{
1866	Assert(!fSkipStateChanges);
1867
1868	/*
1869	* Live snapshot.
1870	*
1871	* The state handling here is kind of tricky, doing it on EMT(0) helps
1872	* a bit. See the VMSTATE diagram for details.
1873	*/
1874	rc = SSMR3LiveDoStep1(pSSM);
1875	if (RT_SUCCESS(rc))
1876	{
1877	if (VMR3GetState(pVM) != VMSTATE_SAVING)
1878	for (;;)
1879	{
1880	/* Try suspend the VM. */
1881	rc = VMMR3EmtRendezvous(pVM, VMMEMTRENDEZVOUS_FLAGS_TYPE_DESCENDING \| VMMEMTRENDEZVOUS_FLAGS_STOP_ON_ERROR,
1882	vmR3LiveDoSuspend, pfSuspended);
1883	if (rc != VERR_TRY_AGAIN)
1884	break;
1885
1886	/* Wait for the state to change. */
1887	RTThreadSleep(250); /** @todo Live Migration: fix this polling wait by some smart use of multiple release event semaphores.. */
1888	}
1889	if (RT_SUCCESS(rc))
1890	rc = VMR3ReqCallWait(pVM, 0 /idDstCpu/, (PFNRT)vmR3LiveDoStep2, 2, pVM, pSSM);
1891	else
1892	{
1893	int rc2 = VMR3ReqCallWait(pVM, 0 /idDstCpu/, (PFNRT)SSMR3LiveDone, 1, pSSM);
1894	AssertMsg(rc2 == rc, ("%Rrc != %Rrc\n", rc2, rc)); NOREF(rc2);
1895	}
1896	}
1897	else
1898	{
1899	int rc2 = VMR3ReqCallWait(pVM, 0 /idDstCpu/, (PFNRT)SSMR3LiveDone, 1, pSSM);
1900	AssertMsg(rc2 == rc, ("%Rrc != %Rrc\n", rc2, rc));
1901
1902	rc2 = VMMR3EmtRendezvous(pVM, VMMEMTRENDEZVOUS_FLAGS_TYPE_ONCE, vmR3LiveDoStep1Cleanup, pfSuspended);
1903	if (RT_FAILURE(rc2) && rc == VERR_SSM_CANCELLED)
1904	rc = rc2;
1905	}
1906	}
1907
1908	return rc;
1909	}
1910
1911
1912	/**
1913	* Save current VM state.
1914	*
1915	* Can be used for both saving the state and creating snapshots.
1916	*
1917	* When called for a VM in the Running state, the saved state is created live
1918	* and the VM is only suspended when the final part of the saving is preformed.
1919	* The VM state will not be restored to Running in this case and it's up to the
1920	* caller to call VMR3Resume if this is desirable. (The rational is that the
1921	* caller probably wish to reconfigure the disks before resuming the VM.)
1922	*
1923	* @returns VBox status code.
1924	*
1925	* @param pUVM The VM which state should be saved.
1926	* @param pszFilename The name of the save state file.
1927	* @param fContinueAfterwards Whether continue execution afterwards or not.
1928	* When in doubt, set this to true.
1929	* @param pfnProgress Progress callback. Optional.
1930	* @param pvUser User argument for the progress callback.
1931	* @param pfSuspended Set if we suspended the VM.
1932	*
1933	* @thread Non-EMT.
1934	* @vmstate Suspended or Running
1935	* @vmstateto Saving+Suspended or
1936	* RunningLS+SuspendingLS+SuspendedLS+Saving+Suspended.
1937	*/
1938	VMMR3DECL(int) VMR3Save(PUVM pUVM, const char pszFilename, bool fContinueAfterwards, PFNVMPROGRESS pfnProgress, void pvUser,
1939	bool *pfSuspended)
1940	{
1941	LogFlow(("VMR3Save: pUVM=%p pszFilename=%p:{%s} fContinueAfterwards=%RTbool pfnProgress=%p pvUser=%p pfSuspended=%p\n",
1942	pUVM, pszFilename, pszFilename, fContinueAfterwards, pfnProgress, pvUser, pfSuspended));
1943
1944	/*
1945	* Validate input.
1946	*/
1947	AssertPtr(pfSuspended);
1948	*pfSuspended = false;
1949	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
1950	PVM pVM = pUVM->pVM;
1951	VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
1952	VM_ASSERT_OTHER_THREAD(pVM);
1953	AssertReturn(VALID_PTR(pszFilename), VERR_INVALID_POINTER);
1954	AssertReturn(*pszFilename, VERR_INVALID_PARAMETER);
1955	AssertPtrNullReturn(pfnProgress, VERR_INVALID_POINTER);
1956
1957	/*
1958	* Join paths with VMR3Teleport.
1959	*/
1960	SSMAFTER enmAfter = fContinueAfterwards ? SSMAFTER_CONTINUE : SSMAFTER_DESTROY;
1961	int rc = vmR3SaveTeleport(pVM, 250 /cMsMaxDowntime/,
1962	pszFilename, NULL /* pStreamOps /, NULL / pvStreamOpsUser */,
1963	enmAfter, pfnProgress, pvUser, pfSuspended,
1964	false /* fSkipStateChanges */);
1965	LogFlow(("VMR3Save: returns %Rrc (pfSuspended=%RTbool)\n", rc, pfSuspended));
1966	return rc;
1967	}
1968
1969	/**
1970	* Save current VM state (used by FTM)
1971	*
1972	*
1973	* @returns VBox status code.
1974	*
1975	* @param pUVM The user mode VM handle.
1976	* @param pStreamOps The stream methods.
1977	* @param pvStreamOpsUser The user argument to the stream methods.
1978	* @param pfSuspended Set if we suspended the VM.
1979	* @param fSkipStateChanges Set if we're supposed to skip state changes (FTM delta case)
1980	*
1981	* @thread Any
1982	* @vmstate Suspended or Running
1983	* @vmstateto Saving+Suspended or
1984	* RunningLS+SuspendingLS+SuspendedLS+Saving+Suspended.
1985	*/
1986	VMMR3_INT_DECL(int) VMR3SaveFT(PUVM pUVM, PCSSMSTRMOPS pStreamOps, void pvStreamOpsUser, bool pfSuspended, bool fSkipStateChanges)
1987	{
1988	LogFlow(("VMR3SaveFT: pUVM=%p pStreamOps=%p pvSteamOpsUser=%p pfSuspended=%p\n",
1989	pUVM, pStreamOps, pvStreamOpsUser, pfSuspended));
1990
1991	/*
1992	* Validate input.
1993	*/
1994	AssertPtr(pfSuspended);
1995	*pfSuspended = false;
1996	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
1997	PVM pVM = pUVM->pVM;
1998	VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
1999	AssertReturn(pStreamOps, VERR_INVALID_PARAMETER);
2000
2001	/*
2002	* Join paths with VMR3Teleport.
2003	*/
2004	int rc = vmR3SaveTeleport(pVM, 250 /cMsMaxDowntime/,
2005	NULL, pStreamOps, pvStreamOpsUser,
2006	SSMAFTER_CONTINUE, NULL, NULL, pfSuspended,
2007	fSkipStateChanges);
2008	LogFlow(("VMR3SaveFT: returns %Rrc (pfSuspended=%RTbool)\n", rc, pfSuspended));
2009	return rc;
2010	}
2011
2012
2013	/**
2014	* Teleport the VM (aka live migration).
2015	*
2016	* @returns VBox status code.
2017	*
2018	* @param pUVM The VM which state should be saved.
2019	* @param cMsMaxDowntime The maximum downtime given as milliseconds.
2020	* @param pStreamOps The stream methods.
2021	* @param pvStreamOpsUser The user argument to the stream methods.
2022	* @param pfnProgress Progress callback. Optional.
2023	* @param pvProgressUser User argument for the progress callback.
2024	* @param pfSuspended Set if we suspended the VM.
2025	*
2026	* @thread Non-EMT.
2027	* @vmstate Suspended or Running
2028	* @vmstateto Saving+Suspended or
2029	* RunningLS+SuspendingLS+SuspendedLS+Saving+Suspended.
2030	*/
2031	VMMR3DECL(int) VMR3Teleport(PUVM pUVM, uint32_t cMsMaxDowntime, PCSSMSTRMOPS pStreamOps, void *pvStreamOpsUser,
2032	PFNVMPROGRESS pfnProgress, void pvProgressUser, bool pfSuspended)
2033	{
2034	LogFlow(("VMR3Teleport: pUVM=%p cMsMaxDowntime=%u pStreamOps=%p pvStreamOps=%p pfnProgress=%p pvProgressUser=%p\n",
2035	pUVM, cMsMaxDowntime, pStreamOps, pvStreamOpsUser, pfnProgress, pvProgressUser));
2036
2037	/*
2038	* Validate input.
2039	*/
2040	AssertPtr(pfSuspended);
2041	*pfSuspended = false;
2042	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
2043	PVM pVM = pUVM->pVM;
2044	VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
2045	VM_ASSERT_OTHER_THREAD(pVM);
2046	AssertPtrReturn(pStreamOps, VERR_INVALID_POINTER);
2047	AssertPtrNullReturn(pfnProgress, VERR_INVALID_POINTER);
2048
2049	/*
2050	* Join paths with VMR3Save.
2051	*/
2052	int rc = vmR3SaveTeleport(pVM, cMsMaxDowntime,
2053	NULL /pszFilename/, pStreamOps, pvStreamOpsUser,
2054	SSMAFTER_TELEPORT, pfnProgress, pvProgressUser, pfSuspended,
2055	false /* fSkipStateChanges */);
2056	LogFlow(("VMR3Teleport: returns %Rrc (pfSuspended=%RTbool)\n", rc, pfSuspended));
2057	return rc;
2058	}
2059
2060
2061
2062	/**
2063	* EMT(0) worker for VMR3LoadFromFile and VMR3LoadFromStream.
2064	*
2065	* @returns VBox status code.
2066	*
2067	* @param pUVM Pointer to the VM.
2068	* @param pszFilename The name of the file. NULL if pStreamOps is used.
2069	* @param pStreamOps The stream methods. NULL if pszFilename is used.
2070	* @param pvStreamOpsUser The user argument to the stream methods.
2071	* @param pfnProgress Progress callback. Optional.
2072	* @param pvProgressUser User argument for the progress callback.
2073	* @param fTeleporting Indicates whether we're teleporting or not.
2074	* @param fSkipStateChanges Set if we're supposed to skip state changes (FTM delta case)
2075	*
2076	* @thread EMT.
2077	*/
2078	static DECLCALLBACK(int) vmR3Load(PUVM pUVM, const char pszFilename, PCSSMSTRMOPS pStreamOps, void pvStreamOpsUser,
2079	PFNVMPROGRESS pfnProgress, void *pvProgressUser, bool fTeleporting,
2080	bool fSkipStateChanges)
2081	{
2082	int rc = VINF_SUCCESS;
2083
2084	LogFlow(("vmR3Load: pUVM=%p pszFilename=%p:{%s} pStreamOps=%p pvStreamOpsUser=%p pfnProgress=%p pvProgressUser=%p fTeleporting=%RTbool\n",
2085	pUVM, pszFilename, pszFilename, pStreamOps, pvStreamOpsUser, pfnProgress, pvProgressUser, fTeleporting));
2086
2087	/*
2088	* Validate input (paranoia).
2089	*/
2090	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
2091	PVM pVM = pUVM->pVM;
2092	VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
2093	AssertPtrNull(pszFilename);
2094	AssertPtrNull(pStreamOps);
2095	AssertPtrNull(pfnProgress);
2096
2097	if (!fSkipStateChanges)
2098	{
2099	/*
2100	* Change the state and perform the load.
2101	*
2102	* Always perform a relocation round afterwards to make sure hypervisor
2103	* selectors and such are correct.
2104	*/
2105	rc = vmR3TrySetState(pVM, "VMR3Load", 2,
2106	VMSTATE_LOADING, VMSTATE_CREATED,
2107	VMSTATE_LOADING, VMSTATE_SUSPENDED);
2108	if (RT_FAILURE(rc))
2109	return rc;
2110	}
2111	pVM->vm.s.fTeleportedAndNotFullyResumedYet = fTeleporting;
2112
2113	uint32_t cErrorsPriorToSave = VMR3GetErrorCount(pUVM);
2114	rc = SSMR3Load(pVM, pszFilename, pStreamOps, pvStreamOpsUser, SSMAFTER_RESUME, pfnProgress, pvProgressUser);
2115	if (RT_SUCCESS(rc))
2116	{
2117	VMR3Relocate(pVM, 0 /offDelta/);
2118	if (!fSkipStateChanges)
2119	vmR3SetState(pVM, VMSTATE_SUSPENDED, VMSTATE_LOADING);
2120	}
2121	else
2122	{
2123	pVM->vm.s.fTeleportedAndNotFullyResumedYet = false;
2124	if (!fSkipStateChanges)
2125	vmR3SetState(pVM, VMSTATE_LOAD_FAILURE, VMSTATE_LOADING);
2126
2127	if (cErrorsPriorToSave == VMR3GetErrorCount(pUVM))
2128	rc = VMSetError(pVM, rc, RT_SRC_POS,
2129	N_("Unable to restore the virtual machine's saved state from '%s'. "
2130	"It may be damaged or from an older version of VirtualBox. "
2131	"Please discard the saved state before starting the virtual machine"),
2132	pszFilename);
2133	}
2134
2135	return rc;
2136	}
2137
2138
2139	/**
2140	* Loads a VM state into a newly created VM or a one that is suspended.
2141	*
2142	* To restore a saved state on VM startup, call this function and then resume
2143	* the VM instead of powering it on.
2144	*
2145	* @returns VBox status code.
2146	*
2147	* @param pUVM The user mode VM structure.
2148	* @param pszFilename The name of the save state file.
2149	* @param pfnProgress Progress callback. Optional.
2150	* @param pvUser User argument for the progress callback.
2151	*
2152	* @thread Any thread.
2153	* @vmstate Created, Suspended
2154	* @vmstateto Loading+Suspended
2155	*/
2156	VMMR3DECL(int) VMR3LoadFromFile(PUVM pUVM, const char pszFilename, PFNVMPROGRESS pfnProgress, void pvUser)
2157	{
2158	LogFlow(("VMR3LoadFromFile: pUVM=%p pszFilename=%p:{%s} pfnProgress=%p pvUser=%p\n",
2159	pUVM, pszFilename, pszFilename, pfnProgress, pvUser));
2160
2161	/*
2162	* Validate input.
2163	*/
2164	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
2165	AssertPtrReturn(pszFilename, VERR_INVALID_POINTER);
2166
2167	/*
2168	* Forward the request to EMT(0). No need to setup a rendezvous here
2169	* since there is no execution taking place when this call is allowed.
2170	*/
2171	int rc = VMR3ReqCallWaitU(pUVM, 0 /idDstCpu/, (PFNRT)vmR3Load, 8,
2172	pUVM, pszFilename, (uintptr_t)NULL /pStreamOps/, (uintptr_t)NULL /pvStreamOpsUser/, pfnProgress, pvUser,
2173	false /fTeleporting/, false /* fSkipStateChanges */);
2174	LogFlow(("VMR3LoadFromFile: returns %Rrc\n", rc));
2175	return rc;
2176	}
2177
2178
2179	/**
2180	* VMR3LoadFromFile for arbitrary file streams.
2181	*
2182	* @returns VBox status code.
2183	*
2184	* @param pUVM Pointer to the VM.
2185	* @param pStreamOps The stream methods.
2186	* @param pvStreamOpsUser The user argument to the stream methods.
2187	* @param pfnProgress Progress callback. Optional.
2188	* @param pvProgressUser User argument for the progress callback.
2189	*
2190	* @thread Any thread.
2191	* @vmstate Created, Suspended
2192	* @vmstateto Loading+Suspended
2193	*/
2194	VMMR3DECL(int) VMR3LoadFromStream(PUVM pUVM, PCSSMSTRMOPS pStreamOps, void *pvStreamOpsUser,
2195	PFNVMPROGRESS pfnProgress, void *pvProgressUser)
2196	{
2197	LogFlow(("VMR3LoadFromStream: pUVM=%p pStreamOps=%p pvStreamOpsUser=%p pfnProgress=%p pvProgressUser=%p\n",
2198	pUVM, pStreamOps, pvStreamOpsUser, pfnProgress, pvProgressUser));
2199
2200	/*
2201	* Validate input.
2202	*/
2203	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
2204	AssertPtrReturn(pStreamOps, VERR_INVALID_POINTER);
2205
2206	/*
2207	* Forward the request to EMT(0). No need to setup a rendezvous here
2208	* since there is no execution taking place when this call is allowed.
2209	*/
2210	int rc = VMR3ReqCallWaitU(pUVM, 0 /idDstCpu/, (PFNRT)vmR3Load, 8,
2211	pUVM, (uintptr_t)NULL /pszFilename/, pStreamOps, pvStreamOpsUser, pfnProgress, pvProgressUser,
2212	true /fTeleporting/, false /* fSkipStateChanges */);
2213	LogFlow(("VMR3LoadFromStream: returns %Rrc\n", rc));
2214	return rc;
2215	}
2216
2217
2218	/**
2219	* Special version for the FT component, it skips state changes.
2220	*
2221	* @returns VBox status code.
2222	*
2223	* @param pUVM The VM handle.
2224	* @param pStreamOps The stream methods.
2225	* @param pvStreamOpsUser The user argument to the stream methods.
2226	*
2227	* @thread Any thread.
2228	* @vmstate Created, Suspended
2229	* @vmstateto Loading+Suspended
2230	*/
2231	VMMR3_INT_DECL(int) VMR3LoadFromStreamFT(PUVM pUVM, PCSSMSTRMOPS pStreamOps, void *pvStreamOpsUser)
2232	{
2233	LogFlow(("VMR3LoadFromStreamFT: pUVM=%p pStreamOps=%p pvStreamOpsUser=%p\n", pUVM, pStreamOps, pvStreamOpsUser));
2234
2235	/*
2236	* Validate input.
2237	*/
2238	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
2239	AssertPtrReturn(pStreamOps, VERR_INVALID_POINTER);
2240
2241	/*
2242	* Forward the request to EMT(0). No need to setup a rendezvous here
2243	* since there is no execution taking place when this call is allowed.
2244	*/
2245	int rc = VMR3ReqCallWaitU(pUVM, 0 /idDstCpu/, (PFNRT)vmR3Load, 8,
2246	pUVM, (uintptr_t)NULL /pszFilename/, pStreamOps, pvStreamOpsUser, NULL, NULL,
2247	true /fTeleporting/, true /* fSkipStateChanges */);
2248	LogFlow(("VMR3LoadFromStream: returns %Rrc\n", rc));
2249	return rc;
2250	}
2251
2252	/**
2253	* EMT rendezvous worker for VMR3PowerOff.
2254	*
2255	* @returns VERR_VM_INVALID_VM_STATE or VINF_EM_OFF. (This is a strict
2256	* return code, see FNVMMEMTRENDEZVOUS.)
2257	*
2258	* @param pVM The cross context VM structure.
2259	* @param pVCpu The cross context virtual CPU structure of the calling EMT.
2260	* @param pvUser Ignored.
2261	*/
2262	static DECLCALLBACK(VBOXSTRICTRC) vmR3PowerOff(PVM pVM, PVMCPU pVCpu, void *pvUser)
2263	{
2264	LogFlow(("vmR3PowerOff: pVM=%p pVCpu=%p/#%u\n", pVM, pVCpu, pVCpu->idCpu));
2265	Assert(!pvUser); NOREF(pvUser);
2266
2267	/*
2268	* The first EMT thru here will change the state to PoweringOff.
2269	*/
2270	if (pVCpu->idCpu == pVM->cCpus - 1)
2271	{
2272	int rc = vmR3TrySetState(pVM, "VMR3PowerOff", 11,
2273	VMSTATE_POWERING_OFF, VMSTATE_RUNNING, /* 1 */
2274	VMSTATE_POWERING_OFF, VMSTATE_SUSPENDED, /* 2 */
2275	VMSTATE_POWERING_OFF, VMSTATE_DEBUGGING, /* 3 */
2276	VMSTATE_POWERING_OFF, VMSTATE_LOAD_FAILURE, /* 4 */
2277	VMSTATE_POWERING_OFF, VMSTATE_GURU_MEDITATION, /* 5 */
2278	VMSTATE_POWERING_OFF, VMSTATE_FATAL_ERROR, /* 6 */
2279	VMSTATE_POWERING_OFF, VMSTATE_CREATED, /* 7 / /* @todo update the diagram! */
2280	VMSTATE_POWERING_OFF_LS, VMSTATE_RUNNING_LS, /* 8 */
2281	VMSTATE_POWERING_OFF_LS, VMSTATE_DEBUGGING_LS, /* 9 */
2282	VMSTATE_POWERING_OFF_LS, VMSTATE_GURU_MEDITATION_LS,/* 10 */
2283	VMSTATE_POWERING_OFF_LS, VMSTATE_FATAL_ERROR_LS); /* 11 */
2284	if (RT_FAILURE(rc))
2285	return rc;
2286	if (rc >= 7)
2287	SSMR3Cancel(pVM->pUVM);
2288	}
2289
2290	/*
2291	* Check the state.
2292	*/
2293	VMSTATE enmVMState = VMR3GetState(pVM);
2294	AssertMsgReturn( enmVMState == VMSTATE_POWERING_OFF
2295	\|\| enmVMState == VMSTATE_POWERING_OFF_LS,
2296	("%s\n", VMR3GetStateName(enmVMState)),
2297	VERR_VM_INVALID_VM_STATE);
2298
2299	/*
2300	* EMT(0) does the actual power off work here after all the other EMTs
2301	* have been thru and entered the STOPPED state.
2302	*/
2303	VMCPU_SET_STATE(pVCpu, VMCPUSTATE_STOPPED);
2304	if (pVCpu->idCpu == 0)
2305	{
2306	/*
2307	* For debugging purposes, we will log a summary of the guest state at this point.
2308	*/
2309	if (enmVMState != VMSTATE_GURU_MEDITATION)
2310	{
2311	/** @todo make the state dumping at VMR3PowerOff optional. */
2312	bool fOldBuffered = RTLogRelSetBuffering(true /fBuffered/);
2313	RTLogRelPrintf("**************** Guest state at power off for VCpu %u ****************\n", pVCpu->idCpu);
2314	DBGFR3InfoEx(pVM->pUVM, pVCpu->idCpu, "cpumguest", "verbose", DBGFR3InfoLogRelHlp());
2315	RTLogRelPrintf("***\n");
2316	DBGFR3InfoEx(pVM->pUVM, pVCpu->idCpu, "cpumguesthwvirt", "verbose", DBGFR3InfoLogRelHlp());
2317	RTLogRelPrintf("***\n");
2318	DBGFR3InfoEx(pVM->pUVM, pVCpu->idCpu, "mode", NULL, DBGFR3InfoLogRelHlp());
2319	RTLogRelPrintf("***\n");
2320	DBGFR3Info(pVM->pUVM, "activetimers", NULL, DBGFR3InfoLogRelHlp());
2321	RTLogRelPrintf("***\n");
2322	DBGFR3Info(pVM->pUVM, "gdt", NULL, DBGFR3InfoLogRelHlp());
2323	/** @todo dump guest call stack. */
2324	RTLogRelSetBuffering(fOldBuffered);
2325	RTLogRelPrintf("************ End of Guest state at power off *************\n");
2326	}
2327
2328	/*
2329	* Perform the power off notifications and advance the state to
2330	* Off or OffLS.
2331	*/
2332	PDMR3PowerOff(pVM);
2333	DBGFR3PowerOff(pVM);
2334
2335	PUVM pUVM = pVM->pUVM;
2336	RTCritSectEnter(&pUVM->vm.s.AtStateCritSect);
2337	enmVMState = pVM->enmVMState;
2338	if (enmVMState == VMSTATE_POWERING_OFF_LS)
2339	vmR3SetStateLocked(pVM, pUVM, VMSTATE_OFF_LS, VMSTATE_POWERING_OFF_LS, false /fSetRatherThanClearFF/);
2340	else
2341	vmR3SetStateLocked(pVM, pUVM, VMSTATE_OFF, VMSTATE_POWERING_OFF, false /fSetRatherThanClearFF/);
2342	RTCritSectLeave(&pUVM->vm.s.AtStateCritSect);
2343	}
2344	else if (enmVMState != VMSTATE_GURU_MEDITATION)
2345	{
2346	/** @todo make the state dumping at VMR3PowerOff optional. */
2347	bool fOldBuffered = RTLogRelSetBuffering(true /fBuffered/);
2348	RTLogRelPrintf("**************** Guest state at power off for VCpu %u ****************\n", pVCpu->idCpu);
2349	DBGFR3InfoEx(pVM->pUVM, pVCpu->idCpu, "cpumguest", "verbose", DBGFR3InfoLogRelHlp());
2350	RTLogRelPrintf("***\n");
2351	DBGFR3InfoEx(pVM->pUVM, pVCpu->idCpu, "cpumguesthwvirt", "verbose", DBGFR3InfoLogRelHlp());
2352	RTLogRelPrintf("***\n");
2353	DBGFR3InfoEx(pVM->pUVM, pVCpu->idCpu, "mode", NULL, DBGFR3InfoLogRelHlp());
2354	RTLogRelPrintf("***\n");
2355	RTLogRelSetBuffering(fOldBuffered);
2356	RTLogRelPrintf("************ End of Guest state at power off for VCpu %u *************\n", pVCpu->idCpu);
2357	}
2358
2359	return VINF_EM_OFF;
2360	}
2361
2362
2363	/**
2364	* Power off the VM.
2365	*
2366	* @returns VBox status code. When called on EMT, this will be a strict status
2367	* code that has to be propagated up the call stack.
2368	*
2369	* @param pUVM The handle of the VM to be powered off.
2370	*
2371	* @thread Any thread.
2372	* @vmstate Suspended, Running, Guru Meditation, Load Failure
2373	* @vmstateto Off or OffLS
2374	*/
2375	VMMR3DECL(int) VMR3PowerOff(PUVM pUVM)
2376	{
2377	LogFlow(("VMR3PowerOff: pUVM=%p\n", pUVM));
2378	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
2379	PVM pVM = pUVM->pVM;
2380	VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
2381
2382	/*
2383	* Gather all the EMTs to make sure there are no races before
2384	* changing the VM state.
2385	*/
2386	int rc = VMMR3EmtRendezvous(pVM, VMMEMTRENDEZVOUS_FLAGS_TYPE_DESCENDING \| VMMEMTRENDEZVOUS_FLAGS_STOP_ON_ERROR,
2387	vmR3PowerOff, NULL);
2388	LogFlow(("VMR3PowerOff: returns %Rrc\n", rc));
2389	return rc;
2390	}
2391
2392
2393	/**
2394	* Destroys the VM.
2395	*
2396	* The VM must be powered off (or never really powered on) to call this
2397	* function. The VM handle is destroyed and can no longer be used up successful
2398	* return.
2399	*
2400	* @returns VBox status code.
2401	*
2402	* @param pUVM The user mode VM handle.
2403	*
2404	* @thread Any none emulation thread.
2405	* @vmstate Off, Created
2406	* @vmstateto N/A
2407	*/
2408	VMMR3DECL(int) VMR3Destroy(PUVM pUVM)
2409	{
2410	LogFlow(("VMR3Destroy: pUVM=%p\n", pUVM));
2411
2412	/*
2413	* Validate input.
2414	*/
2415	if (!pUVM)
2416	return VERR_INVALID_VM_HANDLE;
2417	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
2418	PVM pVM = pUVM->pVM;
2419	VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
2420	AssertLogRelReturn(!VM_IS_EMT(pVM), VERR_VM_THREAD_IS_EMT);
2421
2422	/*
2423	* Change VM state to destroying and aall vmR3Destroy on each of the EMTs
2424	* ending with EMT(0) doing the bulk of the cleanup.
2425	*/
2426	int rc = vmR3TrySetState(pVM, "VMR3Destroy", 1, VMSTATE_DESTROYING, VMSTATE_OFF);
2427	if (RT_FAILURE(rc))
2428	return rc;
2429
2430	rc = VMR3ReqCallWait(pVM, VMCPUID_ALL_REVERSE, (PFNRT)vmR3Destroy, 1, pVM);
2431	AssertLogRelRC(rc);
2432
2433	/*
2434	* Wait for EMTs to quit and destroy the UVM.
2435	*/
2436	vmR3DestroyUVM(pUVM, 30000);
2437
2438	LogFlow(("VMR3Destroy: returns VINF_SUCCESS\n"));
2439	return VINF_SUCCESS;
2440	}
2441
2442
2443	/**
2444	* Internal destruction worker.
2445	*
2446	* This is either called from VMR3Destroy via VMR3ReqCallU or from
2447	* vmR3EmulationThreadWithId when EMT(0) terminates after having called
2448	* VMR3Destroy().
2449	*
2450	* When called on EMT(0), it will performed the great bulk of the destruction.
2451	* When called on the other EMTs, they will do nothing and the whole purpose is
2452	* to return VINF_EM_TERMINATE so they break out of their run loops.
2453	*
2454	* @returns VINF_EM_TERMINATE.
2455	* @param pVM The cross context VM structure.
2456	*/
2457	DECLCALLBACK(int) vmR3Destroy(PVM pVM)
2458	{
2459	PUVM pUVM = pVM->pUVM;
2460	PVMCPU pVCpu = VMMGetCpu(pVM);
2461	Assert(pVCpu);
2462	LogFlow(("vmR3Destroy: pVM=%p pUVM=%p pVCpu=%p idCpu=%u\n", pVM, pUVM, pVCpu, pVCpu->idCpu));
2463
2464	/*
2465	* Only VCPU 0 does the full cleanup (last).
2466	*/
2467	if (pVCpu->idCpu == 0)
2468	{
2469	/*
2470	* Dump statistics to the log.
2471	*/
2472	#if defined(VBOX_WITH_STATISTICS) \|\| defined(LOG_ENABLED)
2473	RTLogFlags(NULL, "nodisabled nobuffered");
2474	#endif
2475	//#ifdef VBOX_WITH_STATISTICS
2476	// STAMR3Dump(pUVM, "*");
2477	//#else
2478	LogRel(("*********************** Statistics ***********************\n"));
2479	STAMR3DumpToReleaseLog(pUVM, "*");
2480	LogRel(("******************* End of statistics ********************\n"));
2481	//#endif
2482
2483	/*
2484	* Destroy the VM components.
2485	*/
2486	int rc = TMR3Term(pVM);
2487	AssertRC(rc);
2488	#ifdef VBOX_WITH_DEBUGGER
2489	rc = DBGCTcpTerminate(pUVM, pUVM->vm.s.pvDBGC);
2490	pUVM->vm.s.pvDBGC = NULL;
2491	#endif
2492	AssertRC(rc);
2493	rc = FTMR3Term(pVM);
2494	AssertRC(rc);
2495	rc = PDMR3Term(pVM);
2496	AssertRC(rc);
2497	rc = GIMR3Term(pVM);
2498	AssertRC(rc);
2499	rc = DBGFR3Term(pVM);
2500	AssertRC(rc);
2501	rc = IEMR3Term(pVM);
2502	AssertRC(rc);
2503	rc = EMR3Term(pVM);
2504	AssertRC(rc);
2505	rc = IOMR3Term(pVM);
2506	AssertRC(rc);
2507	#ifdef VBOX_WITH_RAW_MODE
2508	rc = CSAMR3Term(pVM);
2509	AssertRC(rc);
2510	rc = PATMR3Term(pVM);
2511	AssertRC(rc);
2512	#endif
2513	rc = TRPMR3Term(pVM);
2514	AssertRC(rc);
2515	rc = SELMR3Term(pVM);
2516	AssertRC(rc);
2517	#ifdef VBOX_WITH_REM
2518	rc = REMR3Term(pVM);
2519	AssertRC(rc);
2520	#endif
2521	rc = HMR3Term(pVM);
2522	AssertRC(rc);
2523	rc = NEMR3Term(pVM);
2524	AssertRC(rc);
2525	rc = PGMR3Term(pVM);
2526	AssertRC(rc);
2527	rc = VMMR3Term(pVM); /* Terminates the ring-0 code! */
2528	AssertRC(rc);
2529	rc = CPUMR3Term(pVM);
2530	AssertRC(rc);
2531	SSMR3Term(pVM);
2532	rc = PDMR3CritSectBothTerm(pVM);
2533	AssertRC(rc);
2534	rc = MMR3Term(pVM);
2535	AssertRC(rc);
2536
2537	/*
2538	* We're done, tell the other EMTs to quit.
2539	*/
2540	ASMAtomicUoWriteBool(&pUVM->vm.s.fTerminateEMT, true);
2541	ASMAtomicWriteU32(&pVM->fGlobalForcedActions, VM_FF_CHECK_VM_STATE); /* Can't hurt... */
2542	LogFlow(("vmR3Destroy: returning %Rrc\n", VINF_EM_TERMINATE));
2543	}
2544
2545	/*
2546	* Decrement the active EMT count here.
2547	*/
2548	PUVMCPU pUVCpu = &pUVM->aCpus[pVCpu->idCpu];
2549	if (!pUVCpu->vm.s.fBeenThruVmDestroy)
2550	{
2551	pUVCpu->vm.s.fBeenThruVmDestroy = true;
2552	ASMAtomicDecU32(&pUVM->vm.s.cActiveEmts);
2553	}
2554	else
2555	AssertFailed();
2556
2557	return VINF_EM_TERMINATE;
2558	}
2559
2560
2561	/**
2562	* Destroys the UVM portion.
2563	*
2564	* This is called as the final step in the VM destruction or as the cleanup
2565	* in case of a creation failure.
2566	*
2567	* @param pUVM The user mode VM structure.
2568	* @param cMilliesEMTWait The number of milliseconds to wait for the emulation
2569	* threads.
2570	*/
2571	static void vmR3DestroyUVM(PUVM pUVM, uint32_t cMilliesEMTWait)
2572	{
2573	/*
2574	* Signal termination of each the emulation threads and
2575	* wait for them to complete.
2576	*/
2577	/* Signal them - in reverse order since EMT(0) waits for the others. */
2578	ASMAtomicUoWriteBool(&pUVM->vm.s.fTerminateEMT, true);
2579	if (pUVM->pVM)
2580	VM_FF_SET(pUVM->pVM, VM_FF_CHECK_VM_STATE); /* Can't hurt... */
2581	VMCPUID iCpu = pUVM->cCpus;
2582	while (iCpu-- > 0)
2583	{
2584	VMR3NotifyGlobalFFU(pUVM, VMNOTIFYFF_FLAGS_DONE_REM);
2585	RTSemEventSignal(pUVM->aCpus[iCpu].vm.s.EventSemWait);
2586	}
2587
2588	/* Wait for EMT(0), it in turn waits for the rest. */
2589	ASMAtomicUoWriteBool(&pUVM->vm.s.fTerminateEMT, true);
2590
2591	RTTHREAD const hSelf = RTThreadSelf();
2592	RTTHREAD hThread = pUVM->aCpus[0].vm.s.ThreadEMT;
2593	if ( hThread != NIL_RTTHREAD
2594	&& hThread != hSelf)
2595	{
2596	int rc2 = RTThreadWait(hThread, RT_MAX(cMilliesEMTWait, 2000), NULL);
2597	if (rc2 == VERR_TIMEOUT) /* avoid the assertion when debugging. */
2598	rc2 = RTThreadWait(hThread, 1000, NULL);
2599	AssertLogRelMsgRC(rc2, ("iCpu=0 rc=%Rrc\n", rc2));
2600	if (RT_SUCCESS(rc2))
2601	pUVM->aCpus[0].vm.s.ThreadEMT = NIL_RTTHREAD;
2602	}
2603
2604	/* Just in case we're in a weird failure situation w/o EMT(0) to do the
2605	waiting, wait the other EMTs too. */
2606	for (iCpu = 1; iCpu < pUVM->cCpus; iCpu++)
2607	{
2608	ASMAtomicXchgHandle(&pUVM->aCpus[iCpu].vm.s.ThreadEMT, NIL_RTTHREAD, &hThread);
2609	if (hThread != NIL_RTTHREAD)
2610	{
2611	if (hThread != hSelf)
2612	{
2613	int rc2 = RTThreadWait(hThread, 250 /ms/, NULL);
2614	AssertLogRelMsgRC(rc2, ("iCpu=%u rc=%Rrc\n", iCpu, rc2));
2615	if (RT_SUCCESS(rc2))
2616	continue;
2617	}
2618	pUVM->aCpus[iCpu].vm.s.ThreadEMT = hThread;
2619	}
2620	}
2621
2622	/* Cleanup the semaphores. */
2623	iCpu = pUVM->cCpus;
2624	while (iCpu-- > 0)
2625	{
2626	RTSemEventDestroy(pUVM->aCpus[iCpu].vm.s.EventSemWait);
2627	pUVM->aCpus[iCpu].vm.s.EventSemWait = NIL_RTSEMEVENT;
2628	}
2629
2630	/*
2631	* Free the event semaphores associated with the request packets.
2632	*/
2633	unsigned cReqs = 0;
2634	for (unsigned i = 0; i < RT_ELEMENTS(pUVM->vm.s.apReqFree); i++)
2635	{
2636	PVMREQ pReq = pUVM->vm.s.apReqFree[i];
2637	pUVM->vm.s.apReqFree[i] = NULL;
2638	for (; pReq; pReq = pReq->pNext, cReqs++)
2639	{
2640	pReq->enmState = VMREQSTATE_INVALID;
2641	RTSemEventDestroy(pReq->EventSem);
2642	}
2643	}
2644	Assert(cReqs == pUVM->vm.s.cReqFree); NOREF(cReqs);
2645
2646	/*
2647	* Kill all queued requests. (There really shouldn't be any!)
2648	*/
2649	for (unsigned i = 0; i < 10; i++)
2650	{
2651	PVMREQ pReqHead = ASMAtomicXchgPtrT(&pUVM->vm.s.pPriorityReqs, NULL, PVMREQ);
2652	if (!pReqHead)
2653	{
2654	pReqHead = ASMAtomicXchgPtrT(&pUVM->vm.s.pNormalReqs, NULL, PVMREQ);
2655	if (!pReqHead)
2656	break;
2657	}
2658	AssertLogRelMsgFailed(("Requests pending! VMR3Destroy caller has to serialize this.\n"));
2659
2660	for (PVMREQ pReq = pReqHead; pReq; pReq = pReq->pNext)
2661	{
2662	ASMAtomicUoWriteS32(&pReq->iStatus, VERR_VM_REQUEST_KILLED);
2663	ASMAtomicWriteSize(&pReq->enmState, VMREQSTATE_INVALID);
2664	RTSemEventSignal(pReq->EventSem);
2665	RTThreadSleep(2);
2666	RTSemEventDestroy(pReq->EventSem);
2667	}
2668	/* give them a chance to respond before we free the request memory. */
2669	RTThreadSleep(32);
2670	}
2671
2672	/*
2673	* Now all queued VCPU requests (again, there shouldn't be any).
2674	*/
2675	for (VMCPUID idCpu = 0; idCpu < pUVM->cCpus; idCpu++)
2676	{
2677	PUVMCPU pUVCpu = &pUVM->aCpus[idCpu];
2678
2679	for (unsigned i = 0; i < 10; i++)
2680	{
2681	PVMREQ pReqHead = ASMAtomicXchgPtrT(&pUVCpu->vm.s.pPriorityReqs, NULL, PVMREQ);
2682	if (!pReqHead)
2683	{
2684	pReqHead = ASMAtomicXchgPtrT(&pUVCpu->vm.s.pNormalReqs, NULL, PVMREQ);
2685	if (!pReqHead)
2686	break;
2687	}
2688	AssertLogRelMsgFailed(("Requests pending! VMR3Destroy caller has to serialize this.\n"));
2689
2690	for (PVMREQ pReq = pReqHead; pReq; pReq = pReq->pNext)
2691	{
2692	ASMAtomicUoWriteS32(&pReq->iStatus, VERR_VM_REQUEST_KILLED);
2693	ASMAtomicWriteSize(&pReq->enmState, VMREQSTATE_INVALID);
2694	RTSemEventSignal(pReq->EventSem);
2695	RTThreadSleep(2);
2696	RTSemEventDestroy(pReq->EventSem);
2697	}
2698	/* give them a chance to respond before we free the request memory. */
2699	RTThreadSleep(32);
2700	}
2701	}
2702
2703	/*
2704	* Make sure the VMMR0.r0 module and whatever else is unloaded.
2705	*/
2706	PDMR3TermUVM(pUVM);
2707
2708	RTCritSectDelete(&pUVM->vm.s.AtErrorCritSect);
2709	RTCritSectDelete(&pUVM->vm.s.AtStateCritSect);
2710
2711	/*
2712	* Terminate the support library if initialized.
2713	*/
2714	if (pUVM->vm.s.pSession)
2715	{
2716	int rc = SUPR3Term(false /fForced/);
2717	AssertRC(rc);
2718	pUVM->vm.s.pSession = NIL_RTR0PTR;
2719	}
2720
2721	/*
2722	* Release the UVM structure reference.
2723	*/
2724	VMR3ReleaseUVM(pUVM);
2725
2726	/*
2727	* Clean up and flush logs.
2728	*/
2729	#ifdef LOG_ENABLED
2730	RTLogSetCustomPrefixCallback(NULL, NULL, NULL);
2731	#endif
2732	RTLogFlush(NULL);
2733	}
2734
2735
2736	/**
2737	* Worker which checks integrity of some internal structures.
2738	* This is yet another attempt to track down that AVL tree crash.
2739	*/
2740	static void vmR3CheckIntegrity(PVM pVM)
2741	{
2742	#ifdef VBOX_STRICT
2743	int rc = PGMR3CheckIntegrity(pVM);
2744	AssertReleaseRC(rc);
2745	#else
2746	RT_NOREF_PV(pVM);
2747	#endif
2748	}
2749
2750
2751	/**
2752	* EMT rendezvous worker for VMR3ResetFF for doing soft/warm reset.
2753	*
2754	* @returns VERR_VM_INVALID_VM_STATE, VINF_EM_RESCHEDULE.
2755	* (This is a strict return code, see FNVMMEMTRENDEZVOUS.)
2756	*
2757	* @param pVM The cross context VM structure.
2758	* @param pVCpu The cross context virtual CPU structure of the calling EMT.
2759	* @param pvUser The reset flags.
2760	*/
2761	static DECLCALLBACK(VBOXSTRICTRC) vmR3SoftReset(PVM pVM, PVMCPU pVCpu, void *pvUser)
2762	{
2763	uint32_t fResetFlags = (uint32_t )pvUser;
2764
2765
2766	/*
2767	* The first EMT will try change the state to resetting. If this fails,
2768	* we won't get called for the other EMTs.
2769	*/
2770	if (pVCpu->idCpu == pVM->cCpus - 1)
2771	{
2772	int rc = vmR3TrySetState(pVM, "vmR3ResetSoft", 3,
2773	VMSTATE_SOFT_RESETTING, VMSTATE_RUNNING,
2774	VMSTATE_SOFT_RESETTING, VMSTATE_SUSPENDED,
2775	VMSTATE_SOFT_RESETTING_LS, VMSTATE_RUNNING_LS);
2776	if (RT_FAILURE(rc))
2777	return rc;
2778	}
2779
2780	/*
2781	* Check the state.
2782	*/
2783	VMSTATE enmVMState = VMR3GetState(pVM);
2784	AssertLogRelMsgReturn( enmVMState == VMSTATE_SOFT_RESETTING
2785	\|\| enmVMState == VMSTATE_SOFT_RESETTING_LS,
2786	("%s\n", VMR3GetStateName(enmVMState)),
2787	VERR_VM_UNEXPECTED_UNSTABLE_STATE);
2788
2789	/*
2790	* EMT(0) does the full cleanup after all the other EMTs has been
2791	* thru here and been told to enter the EMSTATE_WAIT_SIPI state.
2792	*
2793	* Because there are per-cpu reset routines and order may/is important,
2794	* the following sequence looks a bit ugly...
2795	*/
2796
2797	/* Reset the VCpu state. */
2798	VMCPU_ASSERT_STATE(pVCpu, VMCPUSTATE_STARTED);
2799
2800	/*
2801	* Soft reset the VM components.
2802	*/
2803	if (pVCpu->idCpu == 0)
2804	{
2805	#ifdef VBOX_WITH_REM
2806	REMR3Reset(pVM);
2807	#endif
2808	PDMR3SoftReset(pVM, fResetFlags);
2809	TRPMR3Reset(pVM);
2810	CPUMR3Reset(pVM); /* This must come after PDM (due to APIC base MSR caching). */
2811	EMR3Reset(pVM);
2812	HMR3Reset(pVM); /* This must come after PATM, CSAM, CPUM, SELM and TRPM. */
2813	NEMR3Reset(pVM);
2814
2815	/*
2816	* Since EMT(0) is the last to go thru here, it will advance the state.
2817	* (Unlike vmR3HardReset we won't be doing any suspending of live
2818	* migration VMs here since memory is unchanged.)
2819	*/
2820	PUVM pUVM = pVM->pUVM;
2821	RTCritSectEnter(&pUVM->vm.s.AtStateCritSect);
2822	enmVMState = pVM->enmVMState;
2823	if (enmVMState == VMSTATE_SOFT_RESETTING)
2824	{
2825	if (pUVM->vm.s.enmPrevVMState == VMSTATE_SUSPENDED)
2826	vmR3SetStateLocked(pVM, pUVM, VMSTATE_SUSPENDED, VMSTATE_SOFT_RESETTING, false /fSetRatherThanClearFF/);
2827	else
2828	vmR3SetStateLocked(pVM, pUVM, VMSTATE_RUNNING, VMSTATE_SOFT_RESETTING, false /fSetRatherThanClearFF/);
2829	}
2830	else
2831	vmR3SetStateLocked(pVM, pUVM, VMSTATE_RUNNING_LS, VMSTATE_SOFT_RESETTING_LS, false /fSetRatherThanClearFF/);
2832	RTCritSectLeave(&pUVM->vm.s.AtStateCritSect);
2833	}
2834
2835	return VINF_EM_RESCHEDULE;
2836	}
2837
2838
2839	/**
2840	* EMT rendezvous worker for VMR3Reset and VMR3ResetFF.
2841	*
2842	* This is called by the emulation threads as a response to the reset request
2843	* issued by VMR3Reset().
2844	*
2845	* @returns VERR_VM_INVALID_VM_STATE, VINF_EM_RESET or VINF_EM_SUSPEND. (This
2846	* is a strict return code, see FNVMMEMTRENDEZVOUS.)
2847	*
2848	* @param pVM The cross context VM structure.
2849	* @param pVCpu The cross context virtual CPU structure of the calling EMT.
2850	* @param pvUser Ignored.
2851	*/
2852	static DECLCALLBACK(VBOXSTRICTRC) vmR3HardReset(PVM pVM, PVMCPU pVCpu, void *pvUser)
2853	{
2854	Assert(!pvUser); NOREF(pvUser);
2855
2856	/*
2857	* The first EMT will try change the state to resetting. If this fails,
2858	* we won't get called for the other EMTs.
2859	*/
2860	if (pVCpu->idCpu == pVM->cCpus - 1)
2861	{
2862	int rc = vmR3TrySetState(pVM, "vmR3HardReset", 3,
2863	VMSTATE_RESETTING, VMSTATE_RUNNING,
2864	VMSTATE_RESETTING, VMSTATE_SUSPENDED,
2865	VMSTATE_RESETTING_LS, VMSTATE_RUNNING_LS);
2866	if (RT_FAILURE(rc))
2867	return rc;
2868	}
2869
2870	/*
2871	* Check the state.
2872	*/
2873	VMSTATE enmVMState = VMR3GetState(pVM);
2874	AssertLogRelMsgReturn( enmVMState == VMSTATE_RESETTING
2875	\|\| enmVMState == VMSTATE_RESETTING_LS,
2876	("%s\n", VMR3GetStateName(enmVMState)),
2877	VERR_VM_UNEXPECTED_UNSTABLE_STATE);
2878
2879	/*
2880	* EMT(0) does the full cleanup after all the other EMTs has been
2881	* thru here and been told to enter the EMSTATE_WAIT_SIPI state.
2882	*
2883	* Because there are per-cpu reset routines and order may/is important,
2884	* the following sequence looks a bit ugly...
2885	*/
2886	if (pVCpu->idCpu == 0)
2887	vmR3CheckIntegrity(pVM);
2888
2889	/* Reset the VCpu state. */
2890	VMCPU_ASSERT_STATE(pVCpu, VMCPUSTATE_STARTED);
2891
2892	/* Clear all pending forced actions. */
2893	VMCPU_FF_CLEAR(pVCpu, VMCPU_FF_ALL_MASK & ~VMCPU_FF_REQUEST);
2894
2895	/*
2896	* Reset the VM components.
2897	*/
2898	if (pVCpu->idCpu == 0)
2899	{
2900	#ifdef VBOX_WITH_RAW_MODE
2901	PATMR3Reset(pVM);
2902	CSAMR3Reset(pVM);
2903	#endif
2904	GIMR3Reset(pVM); /* This must come before PDM and TM. */
2905	PDMR3Reset(pVM);
2906	PGMR3Reset(pVM);
2907	SELMR3Reset(pVM);
2908	TRPMR3Reset(pVM);
2909	#ifdef VBOX_WITH_REM
2910	REMR3Reset(pVM);
2911	#endif
2912	IOMR3Reset(pVM);
2913	CPUMR3Reset(pVM); /* This must come after PDM (due to APIC base MSR caching). */
2914	TMR3Reset(pVM);
2915	EMR3Reset(pVM);
2916	HMR3Reset(pVM); /* This must come after PATM, CSAM, CPUM, SELM and TRPM. */
2917	NEMR3Reset(pVM);
2918
2919	/*
2920	* Do memory setup.
2921	*/
2922	PGMR3MemSetup(pVM, true /fAtReset/);
2923	PDMR3MemSetup(pVM, true /fAtReset/);
2924
2925	/*
2926	* Since EMT(0) is the last to go thru here, it will advance the state.
2927	* When a live save is active, we will move on to SuspendingLS but
2928	* leave it for VMR3Reset to do the actual suspending due to deadlock risks.
2929	*/
2930	PUVM pUVM = pVM->pUVM;
2931	RTCritSectEnter(&pUVM->vm.s.AtStateCritSect);
2932	enmVMState = pVM->enmVMState;
2933	if (enmVMState == VMSTATE_RESETTING)
2934	{
2935	if (pUVM->vm.s.enmPrevVMState == VMSTATE_SUSPENDED)
2936	vmR3SetStateLocked(pVM, pUVM, VMSTATE_SUSPENDED, VMSTATE_RESETTING, false /fSetRatherThanClearFF/);
2937	else
2938	vmR3SetStateLocked(pVM, pUVM, VMSTATE_RUNNING, VMSTATE_RESETTING, false /fSetRatherThanClearFF/);
2939	}
2940	else
2941	vmR3SetStateLocked(pVM, pUVM, VMSTATE_SUSPENDING_LS, VMSTATE_RESETTING_LS, false /fSetRatherThanClearFF/);
2942	RTCritSectLeave(&pUVM->vm.s.AtStateCritSect);
2943
2944	vmR3CheckIntegrity(pVM);
2945
2946	/*
2947	* Do the suspend bit as well.
2948	* It only requires some EMT(0) work at present.
2949	*/
2950	if (enmVMState != VMSTATE_RESETTING)
2951	{
2952	vmR3SuspendDoWork(pVM);
2953	vmR3SetState(pVM, VMSTATE_SUSPENDED_LS, VMSTATE_SUSPENDING_LS);
2954	}
2955	}
2956
2957	return enmVMState == VMSTATE_RESETTING
2958	? VINF_EM_RESET
2959	: VINF_EM_SUSPEND; /** @todo VINF_EM_SUSPEND has lower priority than VINF_EM_RESET, so fix races. Perhaps add a new code for this combined case. */
2960	}
2961
2962
2963	/**
2964	* Internal worker for VMR3Reset, VMR3ResetFF, VMR3TripleFault.
2965	*
2966	* @returns VBox status code.
2967	* @param pVM The cross context VM structure.
2968	* @param fHardReset Whether it's a hard reset or not.
2969	* @param fResetFlags The reset flags (PDMVMRESET_F_XXX).
2970	*/
2971	static VBOXSTRICTRC vmR3ResetCommon(PVM pVM, bool fHardReset, uint32_t fResetFlags)
2972	{
2973	LogFlow(("vmR3ResetCommon: fHardReset=%RTbool fResetFlags=%#x\n", fHardReset, fResetFlags));
2974	int rc;
2975	if (fHardReset)
2976	{
2977	/*
2978	* Hard reset.
2979	*/
2980	/* Check whether we're supposed to power off instead of resetting. */
2981	if (pVM->vm.s.fPowerOffInsteadOfReset)
2982	{
2983	PUVM pUVM = pVM->pUVM;
2984	if ( pUVM->pVmm2UserMethods
2985	&& pUVM->pVmm2UserMethods->pfnNotifyResetTurnedIntoPowerOff)
2986	pUVM->pVmm2UserMethods->pfnNotifyResetTurnedIntoPowerOff(pUVM->pVmm2UserMethods, pUVM);
2987	return VMR3PowerOff(pUVM);
2988	}
2989
2990	/* Gather all the EMTs to make sure there are no races before changing
2991	the VM state. */
2992	rc = VMMR3EmtRendezvous(pVM, VMMEMTRENDEZVOUS_FLAGS_TYPE_DESCENDING \| VMMEMTRENDEZVOUS_FLAGS_STOP_ON_ERROR,
2993	vmR3HardReset, NULL);
2994	}
2995	else
2996	{
2997	/*
2998	* Soft reset. Since we only support this with a single CPU active,
2999	* we must be on EMT #0 here.
3000	*/
3001	VM_ASSERT_EMT0(pVM);
3002	rc = VMMR3EmtRendezvous(pVM, VMMEMTRENDEZVOUS_FLAGS_TYPE_DESCENDING \| VMMEMTRENDEZVOUS_FLAGS_STOP_ON_ERROR,
3003	vmR3SoftReset, &fResetFlags);
3004	}
3005
3006	LogFlow(("vmR3ResetCommon: returns %Rrc\n", rc));
3007	return rc;
3008	}
3009
3010
3011
3012	/**
3013	* Reset the current VM.
3014	*
3015	* @returns VBox status code.
3016	* @param pUVM The VM to reset.
3017	*/
3018	VMMR3DECL(int) VMR3Reset(PUVM pUVM)
3019	{
3020	LogFlow(("VMR3Reset:\n"));
3021	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
3022	PVM pVM = pUVM->pVM;
3023	VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
3024
3025	return VBOXSTRICTRC_VAL(vmR3ResetCommon(pVM, true, 0));
3026	}
3027
3028
3029	/**
3030	* Handle the reset force flag or triple fault.
3031	*
3032	* This handles both soft and hard resets (see PDMVMRESET_F_XXX).
3033	*
3034	* @returns VBox status code.
3035	* @param pVM The cross context VM structure.
3036	* @thread EMT
3037	*
3038	* @remarks Caller is expected to clear the VM_FF_RESET force flag.
3039	*/
3040	VMMR3_INT_DECL(VBOXSTRICTRC) VMR3ResetFF(PVM pVM)
3041	{
3042	LogFlow(("VMR3ResetFF:\n"));
3043
3044	/*
3045	* First consult the firmware on whether this is a hard or soft reset.
3046	*/
3047	uint32_t fResetFlags;
3048	bool fHardReset = PDMR3GetResetInfo(pVM, 0 /fOverride/, &fResetFlags);
3049	return vmR3ResetCommon(pVM, fHardReset, fResetFlags);
3050	}
3051
3052
3053	/**
3054	* For handling a CPU reset on triple fault.
3055	*
3056	* According to one mainboard manual, a CPU triple fault causes the 286 CPU to
3057	* send a SHUTDOWN signal to the chipset. The chipset responds by sending a
3058	* RESET signal to the CPU. So, it should be very similar to a soft/warm reset.
3059	*
3060	* @returns VBox status code.
3061	* @param pVM The cross context VM structure.
3062	* @thread EMT
3063	*/
3064	VMMR3_INT_DECL(VBOXSTRICTRC) VMR3ResetTripleFault(PVM pVM)
3065	{
3066	LogFlow(("VMR3ResetTripleFault:\n"));
3067
3068	/*
3069	* First consult the firmware on whether this is a hard or soft reset.
3070	*/
3071	uint32_t fResetFlags;
3072	bool fHardReset = PDMR3GetResetInfo(pVM, PDMVMRESET_F_TRIPLE_FAULT, &fResetFlags);
3073	return vmR3ResetCommon(pVM, fHardReset, fResetFlags);
3074	}
3075
3076
3077	/**
3078	* Gets the user mode VM structure pointer given Pointer to the VM.
3079	*
3080	* @returns Pointer to the user mode VM structure on success. NULL if @a pVM is
3081	* invalid (asserted).
3082	* @param pVM The cross context VM structure.
3083	* @sa VMR3GetVM, VMR3RetainUVM
3084	*/
3085	VMMR3DECL(PUVM) VMR3GetUVM(PVM pVM)
3086	{
3087	VM_ASSERT_VALID_EXT_RETURN(pVM, NULL);
3088	return pVM->pUVM;
3089	}
3090
3091
3092	/**
3093	* Gets the shared VM structure pointer given the pointer to the user mode VM
3094	* structure.
3095	*
3096	* @returns Pointer to the VM.
3097	* NULL if @a pUVM is invalid (asserted) or if no shared VM structure
3098	* is currently associated with it.
3099	* @param pUVM The user mode VM handle.
3100	* @sa VMR3GetUVM
3101	*/
3102	VMMR3DECL(PVM) VMR3GetVM(PUVM pUVM)
3103	{
3104	UVM_ASSERT_VALID_EXT_RETURN(pUVM, NULL);
3105	return pUVM->pVM;
3106	}
3107
3108
3109	/**
3110	* Retain the user mode VM handle.
3111	*
3112	* @returns Reference count.
3113	* UINT32_MAX if @a pUVM is invalid.
3114	*
3115	* @param pUVM The user mode VM handle.
3116	* @sa VMR3ReleaseUVM
3117	*/
3118	VMMR3DECL(uint32_t) VMR3RetainUVM(PUVM pUVM)
3119	{
3120	UVM_ASSERT_VALID_EXT_RETURN(pUVM, UINT32_MAX);
3121	uint32_t cRefs = ASMAtomicIncU32(&pUVM->vm.s.cUvmRefs);
3122	AssertMsg(cRefs > 0 && cRefs < _64K, ("%u\n", cRefs));
3123	return cRefs;
3124	}
3125
3126
3127	/**
3128	* Does the final release of the UVM structure.
3129	*
3130	* @param pUVM The user mode VM handle.
3131	*/
3132	static void vmR3DoReleaseUVM(PUVM pUVM)
3133	{
3134	/*
3135	* Free the UVM.
3136	*/
3137	Assert(!pUVM->pVM);
3138
3139	MMR3HeapFree(pUVM->vm.s.pszName);
3140	pUVM->vm.s.pszName = NULL;
3141
3142	MMR3TermUVM(pUVM);
3143	STAMR3TermUVM(pUVM);
3144
3145	ASMAtomicUoWriteU32(&pUVM->u32Magic, UINT32_MAX);
3146	RTTlsFree(pUVM->vm.s.idxTLS);
3147	RTMemPageFree(pUVM, RT_OFFSETOF(UVM, aCpus[pUVM->cCpus]));
3148	}
3149
3150
3151	/**
3152	* Releases a refernece to the mode VM handle.
3153	*
3154	* @returns The new reference count, 0 if destroyed.
3155	* UINT32_MAX if @a pUVM is invalid.
3156	*
3157	* @param pUVM The user mode VM handle.
3158	* @sa VMR3RetainUVM
3159	*/
3160	VMMR3DECL(uint32_t) VMR3ReleaseUVM(PUVM pUVM)
3161	{
3162	if (!pUVM)
3163	return 0;
3164	UVM_ASSERT_VALID_EXT_RETURN(pUVM, UINT32_MAX);
3165	uint32_t cRefs = ASMAtomicDecU32(&pUVM->vm.s.cUvmRefs);
3166	if (!cRefs)
3167	vmR3DoReleaseUVM(pUVM);
3168	else
3169	AssertMsg(cRefs < _64K, ("%u\n", cRefs));
3170	return cRefs;
3171	}
3172
3173
3174	/**
3175	* Gets the VM name.
3176	*
3177	* @returns Pointer to a read-only string containing the name. NULL if called
3178	* too early.
3179	* @param pUVM The user mode VM handle.
3180	*/
3181	VMMR3DECL(const char *) VMR3GetName(PUVM pUVM)
3182	{
3183	UVM_ASSERT_VALID_EXT_RETURN(pUVM, NULL);
3184	return pUVM->vm.s.pszName;
3185	}
3186
3187
3188	/**
3189	* Gets the VM UUID.
3190	*
3191	* @returns pUuid on success, NULL on failure.
3192	* @param pUVM The user mode VM handle.
3193	* @param pUuid Where to store the UUID.
3194	*/
3195	VMMR3DECL(PRTUUID) VMR3GetUuid(PUVM pUVM, PRTUUID pUuid)
3196	{
3197	UVM_ASSERT_VALID_EXT_RETURN(pUVM, NULL);
3198	AssertPtrReturn(pUuid, NULL);
3199
3200	*pUuid = pUVM->vm.s.Uuid;
3201	return pUuid;
3202	}
3203
3204
3205	/**
3206	* Gets the current VM state.
3207	*
3208	* @returns The current VM state.
3209	* @param pVM The cross context VM structure.
3210	* @thread Any
3211	*/
3212	VMMR3DECL(VMSTATE) VMR3GetState(PVM pVM)
3213	{
3214	AssertMsgReturn(RT_VALID_ALIGNED_PTR(pVM, PAGE_SIZE), ("%p\n", pVM), VMSTATE_TERMINATED);
3215	VMSTATE enmVMState = pVM->enmVMState;
3216	return enmVMState >= VMSTATE_CREATING && enmVMState <= VMSTATE_TERMINATED ? enmVMState : VMSTATE_TERMINATED;
3217	}
3218
3219
3220	/**
3221	* Gets the current VM state.
3222	*
3223	* @returns The current VM state.
3224	* @param pUVM The user-mode VM handle.
3225	* @thread Any
3226	*/
3227	VMMR3DECL(VMSTATE) VMR3GetStateU(PUVM pUVM)
3228	{
3229	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VMSTATE_TERMINATED);
3230	if (RT_UNLIKELY(!pUVM->pVM))
3231	return VMSTATE_TERMINATED;
3232	return pUVM->pVM->enmVMState;
3233	}
3234
3235
3236	/**
3237	* Gets the state name string for a VM state.
3238	*
3239	* @returns Pointer to the state name. (readonly)
3240	* @param enmState The state.
3241	*/
3242	VMMR3DECL(const char *) VMR3GetStateName(VMSTATE enmState)
3243	{
3244	switch (enmState)
3245	{
3246	case VMSTATE_CREATING: return "CREATING";
3247	case VMSTATE_CREATED: return "CREATED";
3248	case VMSTATE_LOADING: return "LOADING";
3249	case VMSTATE_POWERING_ON: return "POWERING_ON";
3250	case VMSTATE_RESUMING: return "RESUMING";
3251	case VMSTATE_RUNNING: return "RUNNING";
3252	case VMSTATE_RUNNING_LS: return "RUNNING_LS";
3253	case VMSTATE_RUNNING_FT: return "RUNNING_FT";
3254	case VMSTATE_RESETTING: return "RESETTING";
3255	case VMSTATE_RESETTING_LS: return "RESETTING_LS";
3256	case VMSTATE_SOFT_RESETTING: return "SOFT_RESETTING";
3257	case VMSTATE_SOFT_RESETTING_LS: return "SOFT_RESETTING_LS";
3258	case VMSTATE_SUSPENDED: return "SUSPENDED";
3259	case VMSTATE_SUSPENDED_LS: return "SUSPENDED_LS";
3260	case VMSTATE_SUSPENDED_EXT_LS: return "SUSPENDED_EXT_LS";
3261	case VMSTATE_SUSPENDING: return "SUSPENDING";
3262	case VMSTATE_SUSPENDING_LS: return "SUSPENDING_LS";
3263	case VMSTATE_SUSPENDING_EXT_LS: return "SUSPENDING_EXT_LS";
3264	case VMSTATE_SAVING: return "SAVING";
3265	case VMSTATE_DEBUGGING: return "DEBUGGING";
3266	case VMSTATE_DEBUGGING_LS: return "DEBUGGING_LS";
3267	case VMSTATE_POWERING_OFF: return "POWERING_OFF";
3268	case VMSTATE_POWERING_OFF_LS: return "POWERING_OFF_LS";
3269	case VMSTATE_FATAL_ERROR: return "FATAL_ERROR";
3270	case VMSTATE_FATAL_ERROR_LS: return "FATAL_ERROR_LS";
3271	case VMSTATE_GURU_MEDITATION: return "GURU_MEDITATION";
3272	case VMSTATE_GURU_MEDITATION_LS:return "GURU_MEDITATION_LS";
3273	case VMSTATE_LOAD_FAILURE: return "LOAD_FAILURE";
3274	case VMSTATE_OFF: return "OFF";
3275	case VMSTATE_OFF_LS: return "OFF_LS";
3276	case VMSTATE_DESTROYING: return "DESTROYING";
3277	case VMSTATE_TERMINATED: return "TERMINATED";
3278
3279	default:
3280	AssertMsgFailed(("Unknown state %d\n", enmState));
3281	return "Unknown!\n";
3282	}
3283	}
3284
3285
3286	/**
3287	* Validates the state transition in strict builds.
3288	*
3289	* @returns true if valid, false if not.
3290	*
3291	* @param enmStateOld The old (current) state.
3292	* @param enmStateNew The proposed new state.
3293	*
3294	* @remarks The reference for this is found in doc/vp/VMM.vpp, the VMSTATE
3295	* diagram (under State Machine Diagram).
3296	*/
3297	static bool vmR3ValidateStateTransition(VMSTATE enmStateOld, VMSTATE enmStateNew)
3298	{
3299	#ifndef VBOX_STRICT
3300	RT_NOREF2(enmStateOld, enmStateNew);
3301	#else
3302	switch (enmStateOld)
3303	{
3304	case VMSTATE_CREATING:
3305	AssertMsgReturn(enmStateNew == VMSTATE_CREATED, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3306	break;
3307
3308	case VMSTATE_CREATED:
3309	AssertMsgReturn( enmStateNew == VMSTATE_LOADING
3310	\|\| enmStateNew == VMSTATE_POWERING_ON
3311	\|\| enmStateNew == VMSTATE_POWERING_OFF
3312	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3313	break;
3314
3315	case VMSTATE_LOADING:
3316	AssertMsgReturn( enmStateNew == VMSTATE_SUSPENDED
3317	\|\| enmStateNew == VMSTATE_LOAD_FAILURE
3318	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3319	break;
3320
3321	case VMSTATE_POWERING_ON:
3322	AssertMsgReturn( enmStateNew == VMSTATE_RUNNING
3323	/\|\| enmStateNew == VMSTATE_FATAL_ERROR ?/
3324	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3325	break;
3326
3327	case VMSTATE_RESUMING:
3328	AssertMsgReturn( enmStateNew == VMSTATE_RUNNING
3329	/\|\| enmStateNew == VMSTATE_FATAL_ERROR ?/
3330	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3331	break;
3332
3333	case VMSTATE_RUNNING:
3334	AssertMsgReturn( enmStateNew == VMSTATE_POWERING_OFF
3335	\|\| enmStateNew == VMSTATE_SUSPENDING
3336	\|\| enmStateNew == VMSTATE_RESETTING
3337	\|\| enmStateNew == VMSTATE_SOFT_RESETTING
3338	\|\| enmStateNew == VMSTATE_RUNNING_LS
3339	\|\| enmStateNew == VMSTATE_RUNNING_FT
3340	\|\| enmStateNew == VMSTATE_DEBUGGING
3341	\|\| enmStateNew == VMSTATE_FATAL_ERROR
3342	\|\| enmStateNew == VMSTATE_GURU_MEDITATION
3343	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3344	break;
3345
3346	case VMSTATE_RUNNING_LS:
3347	AssertMsgReturn( enmStateNew == VMSTATE_POWERING_OFF_LS
3348	\|\| enmStateNew == VMSTATE_SUSPENDING_LS
3349	\|\| enmStateNew == VMSTATE_SUSPENDING_EXT_LS
3350	\|\| enmStateNew == VMSTATE_RESETTING_LS
3351	\|\| enmStateNew == VMSTATE_SOFT_RESETTING_LS
3352	\|\| enmStateNew == VMSTATE_RUNNING
3353	\|\| enmStateNew == VMSTATE_DEBUGGING_LS
3354	\|\| enmStateNew == VMSTATE_FATAL_ERROR_LS
3355	\|\| enmStateNew == VMSTATE_GURU_MEDITATION_LS
3356	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3357	break;
3358
3359	case VMSTATE_RUNNING_FT:
3360	AssertMsgReturn( enmStateNew == VMSTATE_POWERING_OFF
3361	\|\| enmStateNew == VMSTATE_FATAL_ERROR
3362	\|\| enmStateNew == VMSTATE_GURU_MEDITATION
3363	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3364	break;
3365
3366	case VMSTATE_RESETTING:
3367	AssertMsgReturn(enmStateNew == VMSTATE_RUNNING, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3368	break;
3369
3370	case VMSTATE_SOFT_RESETTING:
3371	AssertMsgReturn(enmStateNew == VMSTATE_RUNNING, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3372	break;
3373
3374	case VMSTATE_RESETTING_LS:
3375	AssertMsgReturn( enmStateNew == VMSTATE_SUSPENDING_LS
3376	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3377	break;
3378
3379	case VMSTATE_SOFT_RESETTING_LS:
3380	AssertMsgReturn( enmStateNew == VMSTATE_RUNNING_LS
3381	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3382	break;
3383
3384	case VMSTATE_SUSPENDING:
3385	AssertMsgReturn(enmStateNew == VMSTATE_SUSPENDED, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3386	break;
3387
3388	case VMSTATE_SUSPENDING_LS:
3389	AssertMsgReturn( enmStateNew == VMSTATE_SUSPENDING
3390	\|\| enmStateNew == VMSTATE_SUSPENDED_LS
3391	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3392	break;
3393
3394	case VMSTATE_SUSPENDING_EXT_LS:
3395	AssertMsgReturn( enmStateNew == VMSTATE_SUSPENDING
3396	\|\| enmStateNew == VMSTATE_SUSPENDED_EXT_LS
3397	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3398	break;
3399
3400	case VMSTATE_SUSPENDED:
3401	AssertMsgReturn( enmStateNew == VMSTATE_POWERING_OFF
3402	\|\| enmStateNew == VMSTATE_SAVING
3403	\|\| enmStateNew == VMSTATE_RESETTING
3404	\|\| enmStateNew == VMSTATE_SOFT_RESETTING
3405	\|\| enmStateNew == VMSTATE_RESUMING
3406	\|\| enmStateNew == VMSTATE_LOADING
3407	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3408	break;
3409
3410	case VMSTATE_SUSPENDED_LS:
3411	AssertMsgReturn( enmStateNew == VMSTATE_SUSPENDED
3412	\|\| enmStateNew == VMSTATE_SAVING
3413	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3414	break;
3415
3416	case VMSTATE_SUSPENDED_EXT_LS:
3417	AssertMsgReturn( enmStateNew == VMSTATE_SUSPENDED
3418	\|\| enmStateNew == VMSTATE_SAVING
3419	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3420	break;
3421
3422	case VMSTATE_SAVING:
3423	AssertMsgReturn(enmStateNew == VMSTATE_SUSPENDED, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3424	break;
3425
3426	case VMSTATE_DEBUGGING:
3427	AssertMsgReturn( enmStateNew == VMSTATE_RUNNING
3428	\|\| enmStateNew == VMSTATE_POWERING_OFF
3429	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3430	break;
3431
3432	case VMSTATE_DEBUGGING_LS:
3433	AssertMsgReturn( enmStateNew == VMSTATE_DEBUGGING
3434	\|\| enmStateNew == VMSTATE_RUNNING_LS
3435	\|\| enmStateNew == VMSTATE_POWERING_OFF_LS
3436	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3437	break;
3438
3439	case VMSTATE_POWERING_OFF:
3440	AssertMsgReturn(enmStateNew == VMSTATE_OFF, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3441	break;
3442
3443	case VMSTATE_POWERING_OFF_LS:
3444	AssertMsgReturn( enmStateNew == VMSTATE_POWERING_OFF
3445	\|\| enmStateNew == VMSTATE_OFF_LS
3446	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3447	break;
3448
3449	case VMSTATE_OFF:
3450	AssertMsgReturn(enmStateNew == VMSTATE_DESTROYING, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3451	break;
3452
3453	case VMSTATE_OFF_LS:
3454	AssertMsgReturn(enmStateNew == VMSTATE_OFF, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3455	break;
3456
3457	case VMSTATE_FATAL_ERROR:
3458	AssertMsgReturn(enmStateNew == VMSTATE_POWERING_OFF, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3459	break;
3460
3461	case VMSTATE_FATAL_ERROR_LS:
3462	AssertMsgReturn( enmStateNew == VMSTATE_FATAL_ERROR
3463	\|\| enmStateNew == VMSTATE_POWERING_OFF_LS
3464	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3465	break;
3466
3467	case VMSTATE_GURU_MEDITATION:
3468	AssertMsgReturn( enmStateNew == VMSTATE_DEBUGGING
3469	\|\| enmStateNew == VMSTATE_POWERING_OFF
3470	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3471	break;
3472
3473	case VMSTATE_GURU_MEDITATION_LS:
3474	AssertMsgReturn( enmStateNew == VMSTATE_GURU_MEDITATION
3475	\|\| enmStateNew == VMSTATE_DEBUGGING_LS
3476	\|\| enmStateNew == VMSTATE_POWERING_OFF_LS
3477	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3478	break;
3479
3480	case VMSTATE_LOAD_FAILURE:
3481	AssertMsgReturn(enmStateNew == VMSTATE_POWERING_OFF, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3482	break;
3483
3484	case VMSTATE_DESTROYING:
3485	AssertMsgReturn(enmStateNew == VMSTATE_TERMINATED, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3486	break;
3487
3488	case VMSTATE_TERMINATED:
3489	default:
3490	AssertMsgFailedReturn(("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3491	break;
3492	}
3493	#endif /* VBOX_STRICT */
3494	return true;
3495	}
3496
3497
3498	/**
3499	* Does the state change callouts.
3500	*
3501	* The caller owns the AtStateCritSect.
3502	*
3503	* @param pVM The cross context VM structure.
3504	* @param pUVM The UVM handle.
3505	* @param enmStateNew The New state.
3506	* @param enmStateOld The old state.
3507	*/
3508	static void vmR3DoAtState(PVM pVM, PUVM pUVM, VMSTATE enmStateNew, VMSTATE enmStateOld)
3509	{
3510	LogRel(("Changing the VM state from '%s' to '%s'\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)));
3511
3512	for (PVMATSTATE pCur = pUVM->vm.s.pAtState; pCur; pCur = pCur->pNext)
3513	{
3514	pCur->pfnAtState(pUVM, enmStateNew, enmStateOld, pCur->pvUser);
3515	if ( enmStateNew != VMSTATE_DESTROYING
3516	&& pVM->enmVMState == VMSTATE_DESTROYING)
3517	break;
3518	AssertMsg(pVM->enmVMState == enmStateNew,
3519	("You are not allowed to change the state while in the change callback, except "
3520	"from destroying the VM. There are restrictions in the way the state changes "
3521	"are propagated up to the EM execution loop and it makes the program flow very "
3522	"difficult to follow. (%s, expected %s, old %s)\n",
3523	VMR3GetStateName(pVM->enmVMState), VMR3GetStateName(enmStateNew),
3524	VMR3GetStateName(enmStateOld)));
3525	}
3526	}
3527
3528
3529	/**
3530	* Sets the current VM state, with the AtStatCritSect already entered.
3531	*
3532	* @param pVM The cross context VM structure.
3533	* @param pUVM The UVM handle.
3534	* @param enmStateNew The new state.
3535	* @param enmStateOld The old state.
3536	* @param fSetRatherThanClearFF The usual behavior is to clear the
3537	* VM_FF_CHECK_VM_STATE force flag, but for
3538	* some transitions (-> guru) we need to kick
3539	* the other EMTs to stop what they're doing.
3540	*/
3541	static void vmR3SetStateLocked(PVM pVM, PUVM pUVM, VMSTATE enmStateNew, VMSTATE enmStateOld, bool fSetRatherThanClearFF)
3542	{
3543	vmR3ValidateStateTransition(enmStateOld, enmStateNew);
3544
3545	AssertMsg(pVM->enmVMState == enmStateOld,
3546	("%s != %s\n", VMR3GetStateName(pVM->enmVMState), VMR3GetStateName(enmStateOld)));
3547
3548	pUVM->vm.s.enmPrevVMState = enmStateOld;
3549	pVM->enmVMState = enmStateNew;
3550
3551	if (!fSetRatherThanClearFF)
3552	VM_FF_CLEAR(pVM, VM_FF_CHECK_VM_STATE);
3553	else if (pVM->cCpus > 0)
3554	VM_FF_SET(pVM, VM_FF_CHECK_VM_STATE);
3555
3556	vmR3DoAtState(pVM, pUVM, enmStateNew, enmStateOld);
3557	}
3558
3559
3560	/**
3561	* Sets the current VM state.
3562	*
3563	* @param pVM The cross context VM structure.
3564	* @param enmStateNew The new state.
3565	* @param enmStateOld The old state (for asserting only).
3566	*/
3567	static void vmR3SetState(PVM pVM, VMSTATE enmStateNew, VMSTATE enmStateOld)
3568	{
3569	PUVM pUVM = pVM->pUVM;
3570	RTCritSectEnter(&pUVM->vm.s.AtStateCritSect);
3571
3572	RT_NOREF_PV(enmStateOld);
3573	AssertMsg(pVM->enmVMState == enmStateOld,
3574	("%s != %s\n", VMR3GetStateName(pVM->enmVMState), VMR3GetStateName(enmStateOld)));
3575	vmR3SetStateLocked(pVM, pUVM, enmStateNew, pVM->enmVMState, false /fSetRatherThanClearFF/);
3576
3577	RTCritSectLeave(&pUVM->vm.s.AtStateCritSect);
3578	}
3579
3580
3581	/**
3582	* Tries to perform a state transition.
3583	*
3584	* @returns The 1-based ordinal of the succeeding transition.
3585	* VERR_VM_INVALID_VM_STATE and Assert+LogRel on failure.
3586	*
3587	* @param pVM The cross context VM structure.
3588	* @param pszWho Who is trying to change it.
3589	* @param cTransitions The number of transitions in the ellipsis.
3590	* @param ... Transition pairs; new, old.
3591	*/
3592	static int vmR3TrySetState(PVM pVM, const char *pszWho, unsigned cTransitions, ...)
3593	{
3594	va_list va;
3595	VMSTATE enmStateNew = VMSTATE_CREATED;
3596	VMSTATE enmStateOld = VMSTATE_CREATED;
3597
3598	#ifdef VBOX_STRICT
3599	/*
3600	* Validate the input first.
3601	*/
3602	va_start(va, cTransitions);
3603	for (unsigned i = 0; i < cTransitions; i++)
3604	{
3605	enmStateNew = (VMSTATE)va_arg(va, /VMSTATE/int);
3606	enmStateOld = (VMSTATE)va_arg(va, /VMSTATE/int);
3607	vmR3ValidateStateTransition(enmStateOld, enmStateNew);
3608	}
3609	va_end(va);
3610	#endif
3611
3612	/*
3613	* Grab the lock and see if any of the proposed transitions works out.
3614	*/
3615	va_start(va, cTransitions);
3616	int rc = VERR_VM_INVALID_VM_STATE;
3617	PUVM pUVM = pVM->pUVM;
3618	RTCritSectEnter(&pUVM->vm.s.AtStateCritSect);
3619
3620	VMSTATE enmStateCur = pVM->enmVMState;
3621
3622	for (unsigned i = 0; i < cTransitions; i++)
3623	{
3624	enmStateNew = (VMSTATE)va_arg(va, /VMSTATE/int);
3625	enmStateOld = (VMSTATE)va_arg(va, /VMSTATE/int);
3626	if (enmStateCur == enmStateOld)
3627	{
3628	vmR3SetStateLocked(pVM, pUVM, enmStateNew, enmStateOld, false /fSetRatherThanClearFF/);
3629	rc = i + 1;
3630	break;
3631	}
3632	}
3633
3634	if (RT_FAILURE(rc))
3635	{
3636	/*
3637	* Complain about it.
3638	*/
3639	if (cTransitions == 1)
3640	{
3641	LogRel(("%s: %s -> %s failed, because the VM state is actually %s\n",
3642	pszWho, VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew), VMR3GetStateName(enmStateCur)));
3643	VMSetError(pVM, VERR_VM_INVALID_VM_STATE, RT_SRC_POS,
3644	N_("%s failed because the VM state is %s instead of %s"),
3645	pszWho, VMR3GetStateName(enmStateCur), VMR3GetStateName(enmStateOld));
3646	AssertMsgFailed(("%s: %s -> %s failed, because the VM state is actually %s\n",
3647	pszWho, VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew), VMR3GetStateName(enmStateCur)));
3648	}
3649	else
3650	{
3651	va_end(va);
3652	va_start(va, cTransitions);
3653	LogRel(("%s:\n", pszWho));
3654	for (unsigned i = 0; i < cTransitions; i++)
3655	{
3656	enmStateNew = (VMSTATE)va_arg(va, /VMSTATE/int);
3657	enmStateOld = (VMSTATE)va_arg(va, /VMSTATE/int);
3658	LogRel(("%s%s -> %s",
3659	i ? ", " : " ", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)));
3660	}
3661	LogRel((" failed, because the VM state is actually %s\n", VMR3GetStateName(enmStateCur)));
3662	VMSetError(pVM, VERR_VM_INVALID_VM_STATE, RT_SRC_POS,
3663	N_("%s failed because the current VM state, %s, was not found in the state transition table (old state %s)"),
3664	pszWho, VMR3GetStateName(enmStateCur), VMR3GetStateName(enmStateOld));
3665	AssertMsgFailed(("%s - state=%s, see release log for full details. Check the cTransitions passed us.\n",
3666	pszWho, VMR3GetStateName(enmStateCur)));
3667	}
3668	}
3669
3670	RTCritSectLeave(&pUVM->vm.s.AtStateCritSect);
3671	va_end(va);
3672	Assert(rc > 0 \|\| rc < 0);
3673	return rc;
3674	}
3675
3676
3677	/**
3678	* Interface used by EM to signal that it's entering the guru meditation state.
3679	*
3680	* This will notifying other threads.
3681	*
3682	* @returns true if the state changed to Guru, false if no state change.
3683	* @param pVM The cross context VM structure.
3684	*/
3685	VMMR3_INT_DECL(bool) VMR3SetGuruMeditation(PVM pVM)
3686	{
3687	PUVM pUVM = pVM->pUVM;
3688	RTCritSectEnter(&pUVM->vm.s.AtStateCritSect);
3689
3690	VMSTATE enmStateCur = pVM->enmVMState;
3691	bool fRc = true;
3692	if (enmStateCur == VMSTATE_RUNNING)
3693	vmR3SetStateLocked(pVM, pUVM, VMSTATE_GURU_MEDITATION, VMSTATE_RUNNING, true /fSetRatherThanClearFF/);
3694	else if (enmStateCur == VMSTATE_RUNNING_LS)
3695	{
3696	vmR3SetStateLocked(pVM, pUVM, VMSTATE_GURU_MEDITATION_LS, VMSTATE_RUNNING_LS, true /fSetRatherThanClearFF/);
3697	SSMR3Cancel(pUVM);
3698	}
3699	else
3700	fRc = false;
3701
3702	RTCritSectLeave(&pUVM->vm.s.AtStateCritSect);
3703	return fRc;
3704	}
3705
3706
3707	/**
3708	* Called by vmR3EmulationThreadWithId just before the VM structure is freed.
3709	*
3710	* @param pVM The cross context VM structure.
3711	*/
3712	void vmR3SetTerminated(PVM pVM)
3713	{
3714	vmR3SetState(pVM, VMSTATE_TERMINATED, VMSTATE_DESTROYING);
3715	}
3716
3717
3718	/**
3719	* Checks if the VM was teleported and hasn't been fully resumed yet.
3720	*
3721	* This applies to both sides of the teleportation since we may leave a working
3722	* clone behind and the user is allowed to resume this...
3723	*
3724	* @returns true / false.
3725	* @param pVM The cross context VM structure.
3726	* @thread Any thread.
3727	*/
3728	VMMR3_INT_DECL(bool) VMR3TeleportedAndNotFullyResumedYet(PVM pVM)
3729	{
3730	VM_ASSERT_VALID_EXT_RETURN(pVM, false);
3731	return pVM->vm.s.fTeleportedAndNotFullyResumedYet;
3732	}
3733
3734
3735	/**
3736	* Registers a VM state change callback.
3737	*
3738	* You are not allowed to call any function which changes the VM state from a
3739	* state callback.
3740	*
3741	* @returns VBox status code.
3742	* @param pUVM The VM handle.
3743	* @param pfnAtState Pointer to callback.
3744	* @param pvUser User argument.
3745	* @thread Any.
3746	*/
3747	VMMR3DECL(int) VMR3AtStateRegister(PUVM pUVM, PFNVMATSTATE pfnAtState, void *pvUser)
3748	{
3749	LogFlow(("VMR3AtStateRegister: pfnAtState=%p pvUser=%p\n", pfnAtState, pvUser));
3750
3751	/*
3752	* Validate input.
3753	*/
3754	AssertPtrReturn(pfnAtState, VERR_INVALID_PARAMETER);
3755	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
3756
3757	/*
3758	* Allocate a new record.
3759	*/
3760	PVMATSTATE pNew = (PVMATSTATE)MMR3HeapAllocU(pUVM, MM_TAG_VM, sizeof(*pNew));
3761	if (!pNew)
3762	return VERR_NO_MEMORY;
3763
3764	/* fill */
3765	pNew->pfnAtState = pfnAtState;
3766	pNew->pvUser = pvUser;
3767
3768	/* insert */
3769	RTCritSectEnter(&pUVM->vm.s.AtStateCritSect);
3770	pNew->pNext = *pUVM->vm.s.ppAtStateNext;
3771	*pUVM->vm.s.ppAtStateNext = pNew;
3772	pUVM->vm.s.ppAtStateNext = &pNew->pNext;
3773	RTCritSectLeave(&pUVM->vm.s.AtStateCritSect);
3774
3775	return VINF_SUCCESS;
3776	}
3777
3778
3779	/**
3780	* Deregisters a VM state change callback.
3781	*
3782	* @returns VBox status code.
3783	* @param pUVM The VM handle.
3784	* @param pfnAtState Pointer to callback.
3785	* @param pvUser User argument.
3786	* @thread Any.
3787	*/
3788	VMMR3DECL(int) VMR3AtStateDeregister(PUVM pUVM, PFNVMATSTATE pfnAtState, void *pvUser)
3789	{
3790	LogFlow(("VMR3AtStateDeregister: pfnAtState=%p pvUser=%p\n", pfnAtState, pvUser));
3791
3792	/*
3793	* Validate input.
3794	*/
3795	AssertPtrReturn(pfnAtState, VERR_INVALID_PARAMETER);
3796	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
3797
3798	RTCritSectEnter(&pUVM->vm.s.AtStateCritSect);
3799
3800	/*
3801	* Search the list for the entry.
3802	*/
3803	PVMATSTATE pPrev = NULL;
3804	PVMATSTATE pCur = pUVM->vm.s.pAtState;
3805	while ( pCur
3806	&& ( pCur->pfnAtState != pfnAtState
3807	\|\| pCur->pvUser != pvUser))
3808	{
3809	pPrev = pCur;
3810	pCur = pCur->pNext;
3811	}
3812	if (!pCur)
3813	{
3814	AssertMsgFailed(("pfnAtState=%p was not found\n", pfnAtState));
3815	RTCritSectLeave(&pUVM->vm.s.AtStateCritSect);
3816	return VERR_FILE_NOT_FOUND;
3817	}
3818
3819	/*
3820	* Unlink it.
3821	*/
3822	if (pPrev)
3823	{
3824	pPrev->pNext = pCur->pNext;
3825	if (!pCur->pNext)
3826	pUVM->vm.s.ppAtStateNext = &pPrev->pNext;
3827	}
3828	else
3829	{
3830	pUVM->vm.s.pAtState = pCur->pNext;
3831	if (!pCur->pNext)
3832	pUVM->vm.s.ppAtStateNext = &pUVM->vm.s.pAtState;
3833	}
3834
3835	RTCritSectLeave(&pUVM->vm.s.AtStateCritSect);
3836
3837	/*
3838	* Free it.
3839	*/
3840	pCur->pfnAtState = NULL;
3841	pCur->pNext = NULL;
3842	MMR3HeapFree(pCur);
3843
3844	return VINF_SUCCESS;
3845	}
3846
3847
3848	/**
3849	* Registers a VM error callback.
3850	*
3851	* @returns VBox status code.
3852	* @param pUVM The VM handle.
3853	* @param pfnAtError Pointer to callback.
3854	* @param pvUser User argument.
3855	* @thread Any.
3856	*/
3857	VMMR3DECL(int) VMR3AtErrorRegister(PUVM pUVM, PFNVMATERROR pfnAtError, void *pvUser)
3858	{
3859	LogFlow(("VMR3AtErrorRegister: pfnAtError=%p pvUser=%p\n", pfnAtError, pvUser));
3860
3861	/*
3862	* Validate input.
3863	*/
3864	AssertPtrReturn(pfnAtError, VERR_INVALID_PARAMETER);
3865	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
3866
3867	/*
3868	* Allocate a new record.
3869	*/
3870	PVMATERROR pNew = (PVMATERROR)MMR3HeapAllocU(pUVM, MM_TAG_VM, sizeof(*pNew));
3871	if (!pNew)
3872	return VERR_NO_MEMORY;
3873
3874	/* fill */
3875	pNew->pfnAtError = pfnAtError;
3876	pNew->pvUser = pvUser;
3877
3878	/* insert */
3879	RTCritSectEnter(&pUVM->vm.s.AtErrorCritSect);
3880	pNew->pNext = *pUVM->vm.s.ppAtErrorNext;
3881	*pUVM->vm.s.ppAtErrorNext = pNew;
3882	pUVM->vm.s.ppAtErrorNext = &pNew->pNext;
3883	RTCritSectLeave(&pUVM->vm.s.AtErrorCritSect);
3884
3885	return VINF_SUCCESS;
3886	}
3887
3888
3889	/**
3890	* Deregisters a VM error callback.
3891	*
3892	* @returns VBox status code.
3893	* @param pUVM The VM handle.
3894	* @param pfnAtError Pointer to callback.
3895	* @param pvUser User argument.
3896	* @thread Any.
3897	*/
3898	VMMR3DECL(int) VMR3AtErrorDeregister(PUVM pUVM, PFNVMATERROR pfnAtError, void *pvUser)
3899	{
3900	LogFlow(("VMR3AtErrorDeregister: pfnAtError=%p pvUser=%p\n", pfnAtError, pvUser));
3901
3902	/*
3903	* Validate input.
3904	*/
3905	AssertPtrReturn(pfnAtError, VERR_INVALID_PARAMETER);
3906	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
3907
3908	RTCritSectEnter(&pUVM->vm.s.AtErrorCritSect);
3909
3910	/*
3911	* Search the list for the entry.
3912	*/
3913	PVMATERROR pPrev = NULL;
3914	PVMATERROR pCur = pUVM->vm.s.pAtError;
3915	while ( pCur
3916	&& ( pCur->pfnAtError != pfnAtError
3917	\|\| pCur->pvUser != pvUser))
3918	{
3919	pPrev = pCur;
3920	pCur = pCur->pNext;
3921	}
3922	if (!pCur)
3923	{
3924	AssertMsgFailed(("pfnAtError=%p was not found\n", pfnAtError));
3925	RTCritSectLeave(&pUVM->vm.s.AtErrorCritSect);
3926	return VERR_FILE_NOT_FOUND;
3927	}
3928
3929	/*
3930	* Unlink it.
3931	*/
3932	if (pPrev)
3933	{
3934	pPrev->pNext = pCur->pNext;
3935	if (!pCur->pNext)
3936	pUVM->vm.s.ppAtErrorNext = &pPrev->pNext;
3937	}
3938	else
3939	{
3940	pUVM->vm.s.pAtError = pCur->pNext;
3941	if (!pCur->pNext)
3942	pUVM->vm.s.ppAtErrorNext = &pUVM->vm.s.pAtError;
3943	}
3944
3945	RTCritSectLeave(&pUVM->vm.s.AtErrorCritSect);
3946
3947	/*
3948	* Free it.
3949	*/
3950	pCur->pfnAtError = NULL;
3951	pCur->pNext = NULL;
3952	MMR3HeapFree(pCur);
3953
3954	return VINF_SUCCESS;
3955	}
3956
3957
3958	/**
3959	* Ellipsis to va_list wrapper for calling pfnAtError.
3960	*/
3961	static void vmR3SetErrorWorkerDoCall(PVM pVM, PVMATERROR pCur, int rc, RT_SRC_POS_DECL, const char *pszFormat, ...)
3962	{
3963	va_list va;
3964	va_start(va, pszFormat);
3965	pCur->pfnAtError(pVM->pUVM, pCur->pvUser, rc, RT_SRC_POS_ARGS, pszFormat, va);
3966	va_end(va);
3967	}
3968
3969
3970	/**
3971	* This is a worker function for GC and Ring-0 calls to VMSetError and VMSetErrorV.
3972	* The message is found in VMINT.
3973	*
3974	* @param pVM The cross context VM structure.
3975	* @thread EMT.
3976	*/
3977	VMMR3_INT_DECL(void) VMR3SetErrorWorker(PVM pVM)
3978	{
3979	VM_ASSERT_EMT(pVM);
3980	AssertReleaseMsgFailed(("And we have a winner! You get to implement Ring-0 and GC VMSetErrorV! Congrats!\n"));
3981
3982	/*
3983	* Unpack the error (if we managed to format one).
3984	*/
3985	PVMERROR pErr = pVM->vm.s.pErrorR3;
3986	const char *pszFile = NULL;
3987	const char *pszFunction = NULL;
3988	uint32_t iLine = 0;
3989	const char *pszMessage;
3990	int32_t rc = VERR_MM_HYPER_NO_MEMORY;
3991	if (pErr)
3992	{
3993	AssertCompile(sizeof(const char) == sizeof(uint8_t));
3994	if (pErr->offFile)
3995	pszFile = (const char *)pErr + pErr->offFile;
3996	iLine = pErr->iLine;
3997	if (pErr->offFunction)
3998	pszFunction = (const char *)pErr + pErr->offFunction;
3999	if (pErr->offMessage)
4000	pszMessage = (const char *)pErr + pErr->offMessage;
4001	else
4002	pszMessage = "No message!";
4003	}
4004	else
4005	pszMessage = "No message! (Failed to allocate memory to put the error message in!)";
4006
4007	/*
4008	* Call the at error callbacks.
4009	*/
4010	PUVM pUVM = pVM->pUVM;
4011	RTCritSectEnter(&pUVM->vm.s.AtErrorCritSect);
4012	ASMAtomicIncU32(&pUVM->vm.s.cRuntimeErrors);
4013	for (PVMATERROR pCur = pUVM->vm.s.pAtError; pCur; pCur = pCur->pNext)
4014	vmR3SetErrorWorkerDoCall(pVM, pCur, rc, RT_SRC_POS_ARGS, "%s", pszMessage);
4015	RTCritSectLeave(&pUVM->vm.s.AtErrorCritSect);
4016	}
4017
4018
4019	/**
4020	* Gets the number of errors raised via VMSetError.
4021	*
4022	* This can be used avoid double error messages.
4023	*
4024	* @returns The error count.
4025	* @param pUVM The VM handle.
4026	*/
4027	VMMR3_INT_DECL(uint32_t) VMR3GetErrorCount(PUVM pUVM)
4028	{
4029	AssertPtrReturn(pUVM, 0);
4030	AssertReturn(pUVM->u32Magic == UVM_MAGIC, 0);
4031	return pUVM->vm.s.cErrors;
4032	}
4033
4034
4035	/**
4036	* Creation time wrapper for vmR3SetErrorUV.
4037	*
4038	* @returns rc.
4039	* @param pUVM Pointer to the user mode VM structure.
4040	* @param rc The VBox status code.
4041	* @param SRC_POS The source position of this error.
4042	* @param pszFormat Format string.
4043	* @param ... The arguments.
4044	* @thread Any thread.
4045	*/
4046	static int vmR3SetErrorU(PUVM pUVM, int rc, RT_SRC_POS_DECL, const char *pszFormat, ...)
4047	{
4048	va_list va;
4049	va_start(va, pszFormat);
4050	vmR3SetErrorUV(pUVM, rc, pszFile, iLine, pszFunction, pszFormat, &va);
4051	va_end(va);
4052	return rc;
4053	}
4054
4055
4056	/**
4057	* Worker which calls everyone listening to the VM error messages.
4058	*
4059	* @param pUVM Pointer to the user mode VM structure.
4060	* @param rc The VBox status code.
4061	* @param SRC_POS The source position of this error.
4062	* @param pszFormat Format string.
4063	* @param pArgs Pointer to the format arguments.
4064	* @thread EMT
4065	*/
4066	DECLCALLBACK(void) vmR3SetErrorUV(PUVM pUVM, int rc, RT_SRC_POS_DECL, const char pszFormat, va_list pArgs)
4067	{
4068	/*
4069	* Log the error.
4070	*/
4071	va_list va3;
4072	va_copy(va3, *pArgs);
4073	RTLogRelPrintf("VMSetError: %s(%d) %s; rc=%Rrc\n"
4074	"VMSetError: %N\n",
4075	pszFile, iLine, pszFunction, rc,
4076	pszFormat, &va3);
4077	va_end(va3);
4078
4079	#ifdef LOG_ENABLED
4080	va_copy(va3, *pArgs);
4081	RTLogPrintf("VMSetError: %s(%d) %s; rc=%Rrc\n"
4082	"%N\n",
4083	pszFile, iLine, pszFunction, rc,
4084	pszFormat, &va3);
4085	va_end(va3);
4086	#endif
4087
4088	/*
4089	* Make a copy of the message.
4090	*/
4091	if (pUVM->pVM)
4092	vmSetErrorCopy(pUVM->pVM, rc, RT_SRC_POS_ARGS, pszFormat, *pArgs);
4093
4094	/*
4095	* Call the at error callbacks.
4096	*/
4097	bool fCalledSomeone = false;
4098	RTCritSectEnter(&pUVM->vm.s.AtErrorCritSect);
4099	ASMAtomicIncU32(&pUVM->vm.s.cErrors);
4100	for (PVMATERROR pCur = pUVM->vm.s.pAtError; pCur; pCur = pCur->pNext)
4101	{
4102	va_list va2;
4103	va_copy(va2, *pArgs);
4104	pCur->pfnAtError(pUVM, pCur->pvUser, rc, RT_SRC_POS_ARGS, pszFormat, va2);
4105	va_end(va2);
4106	fCalledSomeone = true;
4107	}
4108	RTCritSectLeave(&pUVM->vm.s.AtErrorCritSect);
4109	}
4110
4111
4112	/**
4113	* Sets the error message.
4114	*
4115	* @returns rc. Meaning you can do:
4116	* @code
4117	* return VM_SET_ERROR_U(pUVM, VERR_OF_YOUR_CHOICE, "descriptive message");
4118	* @endcode
4119	* @param pUVM The user mode VM handle.
4120	* @param rc VBox status code.
4121	* @param SRC_POS Use RT_SRC_POS.
4122	* @param pszFormat Error message format string.
4123	* @param ... Error message arguments.
4124	* @thread Any
4125	*/
4126	VMMR3DECL(int) VMR3SetError(PUVM pUVM, int rc, RT_SRC_POS_DECL, const char *pszFormat, ...)
4127	{
4128	va_list va;
4129	va_start(va, pszFormat);
4130	int rcRet = VMR3SetErrorV(pUVM, rc, pszFile, iLine, pszFunction, pszFormat, va);
4131	va_end(va);
4132	return rcRet;
4133	}
4134
4135
4136	/**
4137	* Sets the error message.
4138	*
4139	* @returns rc. Meaning you can do:
4140	* @code
4141	* return VM_SET_ERROR_U(pUVM, VERR_OF_YOUR_CHOICE, "descriptive message");
4142	* @endcode
4143	* @param pUVM The user mode VM handle.
4144	* @param rc VBox status code.
4145	* @param SRC_POS Use RT_SRC_POS.
4146	* @param pszFormat Error message format string.
4147	* @param va Error message arguments.
4148	* @thread Any
4149	*/
4150	VMMR3DECL(int) VMR3SetErrorV(PUVM pUVM, int rc, RT_SRC_POS_DECL, const char *pszFormat, va_list va)
4151	{
4152	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
4153
4154	/* Take shortcut when called on EMT, skipping VM handle requirement + validation. */
4155	if (VMR3GetVMCPUThread(pUVM) != NIL_RTTHREAD)
4156	{
4157	va_list vaCopy;
4158	va_copy(vaCopy, va);
4159	vmR3SetErrorUV(pUVM, rc, RT_SRC_POS_ARGS, pszFormat, &vaCopy);
4160	va_end(vaCopy);
4161	return rc;
4162	}
4163
4164	VM_ASSERT_VALID_EXT_RETURN(pUVM->pVM, VERR_INVALID_VM_HANDLE);
4165	return VMSetErrorV(pUVM->pVM, rc, pszFile, iLine, pszFunction, pszFormat, va);
4166	}
4167
4168
4169
4170	/**
4171	* Registers a VM runtime error callback.
4172	*
4173	* @returns VBox status code.
4174	* @param pUVM The user mode VM structure.
4175	* @param pfnAtRuntimeError Pointer to callback.
4176	* @param pvUser User argument.
4177	* @thread Any.
4178	*/
4179	VMMR3DECL(int) VMR3AtRuntimeErrorRegister(PUVM pUVM, PFNVMATRUNTIMEERROR pfnAtRuntimeError, void *pvUser)
4180	{
4181	LogFlow(("VMR3AtRuntimeErrorRegister: pfnAtRuntimeError=%p pvUser=%p\n", pfnAtRuntimeError, pvUser));
4182
4183	/*
4184	* Validate input.
4185	*/
4186	AssertPtrReturn(pfnAtRuntimeError, VERR_INVALID_PARAMETER);
4187	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
4188
4189	/*
4190	* Allocate a new record.
4191	*/
4192	PVMATRUNTIMEERROR pNew = (PVMATRUNTIMEERROR)MMR3HeapAllocU(pUVM, MM_TAG_VM, sizeof(*pNew));
4193	if (!pNew)
4194	return VERR_NO_MEMORY;
4195
4196	/* fill */
4197	pNew->pfnAtRuntimeError = pfnAtRuntimeError;
4198	pNew->pvUser = pvUser;
4199
4200	/* insert */
4201	RTCritSectEnter(&pUVM->vm.s.AtErrorCritSect);
4202	pNew->pNext = *pUVM->vm.s.ppAtRuntimeErrorNext;
4203	*pUVM->vm.s.ppAtRuntimeErrorNext = pNew;
4204	pUVM->vm.s.ppAtRuntimeErrorNext = &pNew->pNext;
4205	RTCritSectLeave(&pUVM->vm.s.AtErrorCritSect);
4206
4207	return VINF_SUCCESS;
4208	}
4209
4210
4211	/**
4212	* Deregisters a VM runtime error callback.
4213	*
4214	* @returns VBox status code.
4215	* @param pUVM The user mode VM handle.
4216	* @param pfnAtRuntimeError Pointer to callback.
4217	* @param pvUser User argument.
4218	* @thread Any.
4219	*/
4220	VMMR3DECL(int) VMR3AtRuntimeErrorDeregister(PUVM pUVM, PFNVMATRUNTIMEERROR pfnAtRuntimeError, void *pvUser)
4221	{
4222	LogFlow(("VMR3AtRuntimeErrorDeregister: pfnAtRuntimeError=%p pvUser=%p\n", pfnAtRuntimeError, pvUser));
4223
4224	/*
4225	* Validate input.
4226	*/
4227	AssertPtrReturn(pfnAtRuntimeError, VERR_INVALID_PARAMETER);
4228	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
4229
4230	RTCritSectEnter(&pUVM->vm.s.AtErrorCritSect);
4231
4232	/*
4233	* Search the list for the entry.
4234	*/
4235	PVMATRUNTIMEERROR pPrev = NULL;
4236	PVMATRUNTIMEERROR pCur = pUVM->vm.s.pAtRuntimeError;
4237	while ( pCur
4238	&& ( pCur->pfnAtRuntimeError != pfnAtRuntimeError
4239	\|\| pCur->pvUser != pvUser))
4240	{
4241	pPrev = pCur;
4242	pCur = pCur->pNext;
4243	}
4244	if (!pCur)
4245	{
4246	AssertMsgFailed(("pfnAtRuntimeError=%p was not found\n", pfnAtRuntimeError));
4247	RTCritSectLeave(&pUVM->vm.s.AtErrorCritSect);
4248	return VERR_FILE_NOT_FOUND;
4249	}
4250
4251	/*
4252	* Unlink it.
4253	*/
4254	if (pPrev)
4255	{
4256	pPrev->pNext = pCur->pNext;
4257	if (!pCur->pNext)
4258	pUVM->vm.s.ppAtRuntimeErrorNext = &pPrev->pNext;
4259	}
4260	else
4261	{
4262	pUVM->vm.s.pAtRuntimeError = pCur->pNext;
4263	if (!pCur->pNext)
4264	pUVM->vm.s.ppAtRuntimeErrorNext = &pUVM->vm.s.pAtRuntimeError;
4265	}
4266
4267	RTCritSectLeave(&pUVM->vm.s.AtErrorCritSect);
4268
4269	/*
4270	* Free it.
4271	*/
4272	pCur->pfnAtRuntimeError = NULL;
4273	pCur->pNext = NULL;
4274	MMR3HeapFree(pCur);
4275
4276	return VINF_SUCCESS;
4277	}
4278
4279
4280	/**
4281	* EMT rendezvous worker that vmR3SetRuntimeErrorCommon uses to safely change
4282	* the state to FatalError(LS).
4283	*
4284	* @returns VERR_VM_INVALID_VM_STATE or VINF_EM_SUSPEND. (This is a strict
4285	* return code, see FNVMMEMTRENDEZVOUS.)
4286	*
4287	* @param pVM The cross context VM structure.
4288	* @param pVCpu The cross context virtual CPU structure of the calling EMT.
4289	* @param pvUser Ignored.
4290	*/
4291	static DECLCALLBACK(VBOXSTRICTRC) vmR3SetRuntimeErrorChangeState(PVM pVM, PVMCPU pVCpu, void *pvUser)
4292	{
4293	NOREF(pVCpu);
4294	Assert(!pvUser); NOREF(pvUser);
4295
4296	/*
4297	* The first EMT thru here changes the state.
4298	*/
4299	if (pVCpu->idCpu == pVM->cCpus - 1)
4300	{
4301	int rc = vmR3TrySetState(pVM, "VMSetRuntimeError", 2,
4302	VMSTATE_FATAL_ERROR, VMSTATE_RUNNING,
4303	VMSTATE_FATAL_ERROR_LS, VMSTATE_RUNNING_LS);
4304	if (RT_FAILURE(rc))
4305	return rc;
4306	if (rc == 2)
4307	SSMR3Cancel(pVM->pUVM);
4308
4309	VM_FF_SET(pVM, VM_FF_CHECK_VM_STATE);
4310	}
4311
4312	/* This'll make sure we get out of whereever we are (e.g. REM). */
4313	return VINF_EM_SUSPEND;
4314	}
4315
4316
4317	/**
4318	* Worker for VMR3SetRuntimeErrorWorker and vmR3SetRuntimeErrorV.
4319	*
4320	* This does the common parts after the error has been saved / retrieved.
4321	*
4322	* @returns VBox status code with modifications, see VMSetRuntimeErrorV.
4323	*
4324	* @param pVM The cross context VM structure.
4325	* @param fFlags The error flags.
4326	* @param pszErrorId Error ID string.
4327	* @param pszFormat Format string.
4328	* @param pVa Pointer to the format arguments.
4329	*/
4330	static int vmR3SetRuntimeErrorCommon(PVM pVM, uint32_t fFlags, const char pszErrorId, const char pszFormat, va_list *pVa)
4331	{
4332	LogRel(("VM: Raising runtime error '%s' (fFlags=%#x)\n", pszErrorId, fFlags));
4333	PUVM pUVM = pVM->pUVM;
4334
4335	/*
4336	* Take actions before the call.
4337	*/
4338	int rc;
4339	if (fFlags & VMSETRTERR_FLAGS_FATAL)
4340	rc = VMMR3EmtRendezvous(pVM, VMMEMTRENDEZVOUS_FLAGS_TYPE_DESCENDING \| VMMEMTRENDEZVOUS_FLAGS_STOP_ON_ERROR,
4341	vmR3SetRuntimeErrorChangeState, NULL);
4342	else if (fFlags & VMSETRTERR_FLAGS_SUSPEND)
4343	rc = VMR3Suspend(pUVM, VMSUSPENDREASON_RUNTIME_ERROR);
4344	else
4345	rc = VINF_SUCCESS;
4346
4347	/*
4348	* Do the callback round.
4349	*/
4350	RTCritSectEnter(&pUVM->vm.s.AtErrorCritSect);
4351	ASMAtomicIncU32(&pUVM->vm.s.cRuntimeErrors);
4352	for (PVMATRUNTIMEERROR pCur = pUVM->vm.s.pAtRuntimeError; pCur; pCur = pCur->pNext)
4353	{
4354	va_list va;
4355	va_copy(va, *pVa);
4356	pCur->pfnAtRuntimeError(pUVM, pCur->pvUser, fFlags, pszErrorId, pszFormat, va);
4357	va_end(va);
4358	}
4359	RTCritSectLeave(&pUVM->vm.s.AtErrorCritSect);
4360
4361	return rc;
4362	}
4363
4364
4365	/**
4366	* Ellipsis to va_list wrapper for calling vmR3SetRuntimeErrorCommon.
4367	*/
4368	static int vmR3SetRuntimeErrorCommonF(PVM pVM, uint32_t fFlags, const char pszErrorId, const char pszFormat, ...)
4369	{
4370	va_list va;
4371	va_start(va, pszFormat);
4372	int rc = vmR3SetRuntimeErrorCommon(pVM, fFlags, pszErrorId, pszFormat, &va);
4373	va_end(va);
4374	return rc;
4375	}
4376
4377
4378	/**
4379	* This is a worker function for RC and Ring-0 calls to VMSetError and
4380	* VMSetErrorV.
4381	*
4382	* The message is found in VMINT.
4383	*
4384	* @returns VBox status code, see VMSetRuntimeError.
4385	* @param pVM The cross context VM structure.
4386	* @thread EMT.
4387	*/
4388	VMMR3_INT_DECL(int) VMR3SetRuntimeErrorWorker(PVM pVM)
4389	{
4390	VM_ASSERT_EMT(pVM);
4391	AssertReleaseMsgFailed(("And we have a winner! You get to implement Ring-0 and GC VMSetRuntimeErrorV! Congrats!\n"));
4392
4393	/*
4394	* Unpack the error (if we managed to format one).
4395	*/
4396	const char *pszErrorId = "SetRuntimeError";
4397	const char *pszMessage = "No message!";
4398	uint32_t fFlags = VMSETRTERR_FLAGS_FATAL;
4399	PVMRUNTIMEERROR pErr = pVM->vm.s.pRuntimeErrorR3;
4400	if (pErr)
4401	{
4402	AssertCompile(sizeof(const char) == sizeof(uint8_t));
4403	if (pErr->offErrorId)
4404	pszErrorId = (const char *)pErr + pErr->offErrorId;
4405	if (pErr->offMessage)
4406	pszMessage = (const char *)pErr + pErr->offMessage;
4407	fFlags = pErr->fFlags;
4408	}
4409
4410	/*
4411	* Join cause with vmR3SetRuntimeErrorV.
4412	*/
4413	return vmR3SetRuntimeErrorCommonF(pVM, fFlags, pszErrorId, "%s", pszMessage);
4414	}
4415
4416
4417	/**
4418	* Worker for VMSetRuntimeErrorV for doing the job on EMT in ring-3.
4419	*
4420	* @returns VBox status code with modifications, see VMSetRuntimeErrorV.
4421	*
4422	* @param pVM The cross context VM structure.
4423	* @param fFlags The error flags.
4424	* @param pszErrorId Error ID string.
4425	* @param pszMessage The error message residing the MM heap.
4426	*
4427	* @thread EMT
4428	*/
4429	DECLCALLBACK(int) vmR3SetRuntimeError(PVM pVM, uint32_t fFlags, const char pszErrorId, char pszMessage)
4430	{
4431	#if 0 /** @todo make copy of the error msg. */
4432	/*
4433	* Make a copy of the message.
4434	*/
4435	va_list va2;
4436	va_copy(va2, *pVa);
4437	vmSetRuntimeErrorCopy(pVM, fFlags, pszErrorId, pszFormat, va2);
4438	va_end(va2);
4439	#endif
4440
4441	/*
4442	* Join paths with VMR3SetRuntimeErrorWorker.
4443	*/
4444	int rc = vmR3SetRuntimeErrorCommonF(pVM, fFlags, pszErrorId, "%s", pszMessage);
4445	MMR3HeapFree(pszMessage);
4446	return rc;
4447	}
4448
4449
4450	/**
4451	* Worker for VMSetRuntimeErrorV for doing the job on EMT in ring-3.
4452	*
4453	* @returns VBox status code with modifications, see VMSetRuntimeErrorV.
4454	*
4455	* @param pVM The cross context VM structure.
4456	* @param fFlags The error flags.
4457	* @param pszErrorId Error ID string.
4458	* @param pszFormat Format string.
4459	* @param pVa Pointer to the format arguments.
4460	*
4461	* @thread EMT
4462	*/
4463	DECLCALLBACK(int) vmR3SetRuntimeErrorV(PVM pVM, uint32_t fFlags, const char pszErrorId, const char pszFormat, va_list *pVa)
4464	{
4465	/*
4466	* Make a copy of the message.
4467	*/
4468	va_list va2;
4469	va_copy(va2, *pVa);
4470	vmSetRuntimeErrorCopy(pVM, fFlags, pszErrorId, pszFormat, va2);
4471	va_end(va2);
4472
4473	/*
4474	* Join paths with VMR3SetRuntimeErrorWorker.
4475	*/
4476	return vmR3SetRuntimeErrorCommon(pVM, fFlags, pszErrorId, pszFormat, pVa);
4477	}
4478
4479
4480	/**
4481	* Gets the number of runtime errors raised via VMR3SetRuntimeError.
4482	*
4483	* This can be used avoid double error messages.
4484	*
4485	* @returns The runtime error count.
4486	* @param pUVM The user mode VM handle.
4487	*/
4488	VMMR3_INT_DECL(uint32_t) VMR3GetRuntimeErrorCount(PUVM pUVM)
4489	{
4490	return pUVM->vm.s.cRuntimeErrors;
4491	}
4492
4493
4494	/**
4495	* Gets the ID virtual of the virtual CPU associated with the calling thread.
4496	*
4497	* @returns The CPU ID. NIL_VMCPUID if the thread isn't an EMT.
4498	*
4499	* @param pVM The cross context VM structure.
4500	*/
4501	VMMR3_INT_DECL(RTCPUID) VMR3GetVMCPUId(PVM pVM)
4502	{
4503	PUVMCPU pUVCpu = (PUVMCPU)RTTlsGet(pVM->pUVM->vm.s.idxTLS);
4504	return pUVCpu
4505	? pUVCpu->idCpu
4506	: NIL_VMCPUID;
4507	}
4508
4509
4510	/**
4511	* Checks if the VM is long-mode (64-bit) capable or not.
4512	* @returns true if VM can operate in long-mode, false
4513	* otherwise.
4514	*
4515	* @param pVM The cross context VM structure.
4516	*/
4517	VMMR3_INT_DECL(bool) VMR3IsLongModeAllowed(PVM pVM)
4518	{
4519	if (HMIsEnabled(pVM))
4520	return HMIsLongModeAllowed(pVM);
4521	return false;
4522	}
4523
4524
4525	/**
4526	* Returns the native handle of the current EMT VMCPU thread.
4527	*
4528	* @returns Handle if this is an EMT thread; NIL_RTNATIVETHREAD otherwise
4529	* @param pVM The cross context VM structure.
4530	* @thread EMT
4531	*/
4532	VMMR3DECL(RTNATIVETHREAD) VMR3GetVMCPUNativeThread(PVM pVM)
4533	{
4534	PUVMCPU pUVCpu = (PUVMCPU)RTTlsGet(pVM->pUVM->vm.s.idxTLS);
4535
4536	if (!pUVCpu)
4537	return NIL_RTNATIVETHREAD;
4538
4539	return pUVCpu->vm.s.NativeThreadEMT;
4540	}
4541
4542
4543	/**
4544	* Returns the native handle of the current EMT VMCPU thread.
4545	*
4546	* @returns Handle if this is an EMT thread; NIL_RTNATIVETHREAD otherwise
4547	* @param pUVM The user mode VM structure.
4548	* @thread EMT
4549	*/
4550	VMMR3DECL(RTNATIVETHREAD) VMR3GetVMCPUNativeThreadU(PUVM pUVM)
4551	{
4552	PUVMCPU pUVCpu = (PUVMCPU)RTTlsGet(pUVM->vm.s.idxTLS);
4553
4554	if (!pUVCpu)
4555	return NIL_RTNATIVETHREAD;
4556
4557	return pUVCpu->vm.s.NativeThreadEMT;
4558	}
4559
4560
4561	/**
4562	* Returns the handle of the current EMT VMCPU thread.
4563	*
4564	* @returns Handle if this is an EMT thread; NIL_RTNATIVETHREAD otherwise
4565	* @param pUVM The user mode VM handle.
4566	* @thread EMT
4567	*/
4568	VMMR3DECL(RTTHREAD) VMR3GetVMCPUThread(PUVM pUVM)
4569	{
4570	PUVMCPU pUVCpu = (PUVMCPU)RTTlsGet(pUVM->vm.s.idxTLS);
4571
4572	if (!pUVCpu)
4573	return NIL_RTTHREAD;
4574
4575	return pUVCpu->vm.s.ThreadEMT;
4576	}
4577
4578
4579	/**
4580	* Return the package and core ID of a CPU.
4581	*
4582	* @returns VBOX status code.
4583	* @param pUVM The user mode VM handle.
4584	* @param idCpu Virtual CPU to get the ID from.
4585	* @param pidCpuCore Where to store the core ID of the virtual CPU.
4586	* @param pidCpuPackage Where to store the package ID of the virtual CPU.
4587	*
4588	*/
4589	VMMR3DECL(int) VMR3GetCpuCoreAndPackageIdFromCpuId(PUVM pUVM, VMCPUID idCpu, uint32_t pidCpuCore, uint32_t pidCpuPackage)
4590	{
4591	/*
4592	* Validate input.
4593	*/
4594	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
4595	PVM pVM = pUVM->pVM;
4596	VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
4597	AssertPtrReturn(pidCpuCore, VERR_INVALID_POINTER);
4598	AssertPtrReturn(pidCpuPackage, VERR_INVALID_POINTER);
4599	if (idCpu >= pVM->cCpus)
4600	return VERR_INVALID_CPU_ID;
4601
4602	/*
4603	* Set return values.
4604	*/
4605	#ifdef VBOX_WITH_MULTI_CORE
4606	*pidCpuCore = idCpu;
4607	*pidCpuPackage = 0;
4608	#else
4609	*pidCpuCore = 0;
4610	*pidCpuPackage = idCpu;
4611	#endif
4612
4613	return VINF_SUCCESS;
4614	}
4615
4616
4617	/**
4618	* Worker for VMR3HotUnplugCpu.
4619	*
4620	* @returns VINF_EM_WAIT_SPIP (strict status code).
4621	* @param pVM The cross context VM structure.
4622	* @param idCpu The current CPU.
4623	*/
4624	static DECLCALLBACK(int) vmR3HotUnplugCpu(PVM pVM, VMCPUID idCpu)
4625	{
4626	PVMCPU pVCpu = VMMGetCpuById(pVM, idCpu);
4627	VMCPU_ASSERT_EMT(pVCpu);
4628
4629	/*
4630	* Reset per CPU resources.
4631	*
4632	* Actually only needed for VT-x because the CPU seems to be still in some
4633	* paged mode and startup fails after a new hot plug event. SVM works fine
4634	* even without this.
4635	*/
4636	Log(("vmR3HotUnplugCpu for VCPU %u\n", idCpu));
4637	PGMR3ResetCpu(pVM, pVCpu);
4638	PDMR3ResetCpu(pVCpu);
4639	TRPMR3ResetCpu(pVCpu);
4640	CPUMR3ResetCpu(pVM, pVCpu);
4641	EMR3ResetCpu(pVCpu);
4642	HMR3ResetCpu(pVCpu);
4643	NEMR3ResetCpu(pVCpu);
4644	return VINF_EM_WAIT_SIPI;
4645	}
4646
4647
4648	/**
4649	* Hot-unplugs a CPU from the guest.
4650	*
4651	* @returns VBox status code.
4652	* @param pUVM The user mode VM handle.
4653	* @param idCpu Virtual CPU to perform the hot unplugging operation on.
4654	*/
4655	VMMR3DECL(int) VMR3HotUnplugCpu(PUVM pUVM, VMCPUID idCpu)
4656	{
4657	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
4658	PVM pVM = pUVM->pVM;
4659	VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
4660	AssertReturn(idCpu < pVM->cCpus, VERR_INVALID_CPU_ID);
4661
4662	/** @todo r=bird: Don't destroy the EMT, it'll break VMMR3EmtRendezvous and
4663	* broadcast requests. Just note down somewhere that the CPU is
4664	* offline and send it to SPIP wait. Maybe modify VMCPUSTATE and push
4665	* it out of the EM loops when offline. */
4666	return VMR3ReqCallNoWaitU(pUVM, idCpu, (PFNRT)vmR3HotUnplugCpu, 2, pVM, idCpu);
4667	}
4668
4669
4670	/**
4671	* Hot-plugs a CPU on the guest.
4672	*
4673	* @returns VBox status code.
4674	* @param pUVM The user mode VM handle.
4675	* @param idCpu Virtual CPU to perform the hot plugging operation on.
4676	*/
4677	VMMR3DECL(int) VMR3HotPlugCpu(PUVM pUVM, VMCPUID idCpu)
4678	{
4679	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
4680	PVM pVM = pUVM->pVM;
4681	VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
4682	AssertReturn(idCpu < pVM->cCpus, VERR_INVALID_CPU_ID);
4683
4684	/** @todo r-bird: Just mark it online and make sure it waits on SPIP. */
4685	return VINF_SUCCESS;
4686	}
4687
4688
4689	/**
4690	* Changes the VMM execution cap.
4691	*
4692	* @returns VBox status code.
4693	* @param pUVM The user mode VM structure.
4694	* @param uCpuExecutionCap New CPU execution cap in precent, 1-100. Where
4695	* 100 is max performance (default).
4696	*/
4697	VMMR3DECL(int) VMR3SetCpuExecutionCap(PUVM pUVM, uint32_t uCpuExecutionCap)
4698	{
4699	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
4700	PVM pVM = pUVM->pVM;
4701	VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
4702	AssertReturn(uCpuExecutionCap > 0 && uCpuExecutionCap <= 100, VERR_INVALID_PARAMETER);
4703
4704	Log(("VMR3SetCpuExecutionCap: new priority = %d\n", uCpuExecutionCap));
4705	/* Note: not called from EMT. */
4706	pVM->uCpuExecutionCap = uCpuExecutionCap;
4707	return VINF_SUCCESS;
4708	}
4709
4710
4711	/**
4712	* Control whether the VM should power off when resetting.
4713	*
4714	* @returns VBox status code.
4715	* @param pUVM The user mode VM handle.
4716	* @param fPowerOffInsteadOfReset Flag whether the VM should power off when
4717	* resetting.
4718	*/
4719	VMMR3DECL(int) VMR3SetPowerOffInsteadOfReset(PUVM pUVM, bool fPowerOffInsteadOfReset)
4720	{
4721	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
4722	PVM pVM = pUVM->pVM;
4723	VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
4724
4725	/* Note: not called from EMT. */
4726	pVM->vm.s.fPowerOffInsteadOfReset = fPowerOffInsteadOfReset;
4727	return VINF_SUCCESS;
4728	}
4729

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source: vbox/trunk/src/VBox/VMM/VMMR3/VM.cpp@ 70918

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