VM.cpp@ 45728

Last change on this file since 45728 was 45618, checked in by vboxsync, 12 years ago
Do HMR3Init first in vmR3InitRing3 so the other components can skip raw-mode bits during init.
Property svn:eol-style set to `native` Property svn:keywords set to `Id Revision`
File size: 156.8 KB

Line
1	/* $Id: VM.cpp 45618 2013-04-18 18:41:07Z vboxsync $ */
2	/** @file
3	* VM - Virtual Machine
4	*/
5
6	/*
7	* Copyright (C) 2006-2013 Oracle Corporation
8	*
9	* This file is part of VirtualBox Open Source Edition (OSE), as
10	* available from http://www.virtualbox.org. This file is free software;
11	* you can redistribute it and/or modify it under the terms of the GNU
12	* General Public License (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	* Header Files *
43	*******************************************************************************/
44	#define LOG_GROUP LOG_GROUP_VM
45	#include <VBox/vmm/cfgm.h>
46	#include <VBox/vmm/vmm.h>
47	#include <VBox/vmm/gvmm.h>
48	#include <VBox/vmm/mm.h>
49	#include <VBox/vmm/cpum.h>
50	#include <VBox/vmm/selm.h>
51	#include <VBox/vmm/trpm.h>
52	#include <VBox/vmm/dbgf.h>
53	#include <VBox/vmm/pgm.h>
54	#include <VBox/vmm/pdmapi.h>
55	#include <VBox/vmm/pdmcritsect.h>
56	#include <VBox/vmm/em.h>
57	#include <VBox/vmm/iem.h>
58	#ifdef VBOX_WITH_REM
59	# include <VBox/vmm/rem.h>
60	#endif
61	#include <VBox/vmm/tm.h>
62	#include <VBox/vmm/stam.h>
63	#include <VBox/vmm/patm.h>
64	#include <VBox/vmm/csam.h>
65	#include <VBox/vmm/iom.h>
66	#include <VBox/vmm/ssm.h>
67	#include <VBox/vmm/ftm.h>
68	#include <VBox/vmm/hm.h>
69	#include "VMInternal.h"
70	#include <VBox/vmm/vm.h>
71	#include <VBox/vmm/uvm.h>
72
73	#include <VBox/sup.h>
74	#if defined(VBOX_WITH_DTRACE_R3) && !defined(VBOX_WITH_NATIVE_DTRACE)
75	# include <VBox/VBoxTpG.h>
76	#endif
77	#include <VBox/dbg.h>
78	#include <VBox/err.h>
79	#include <VBox/param.h>
80	#include <VBox/log.h>
81	#include <iprt/assert.h>
82	#include <iprt/alloc.h>
83	#include <iprt/asm.h>
84	#include <iprt/env.h>
85	#include <iprt/string.h>
86	#include <iprt/time.h>
87	#include <iprt/semaphore.h>
88	#include <iprt/thread.h>
89	#include <iprt/uuid.h>
90
91
92	/*******************************************************************************
93	* Global Variables *
94	*******************************************************************************/
95	/** Pointer to the list of VMs. */
96	static PUVM g_pUVMsHead = NULL;
97
98
99	/*******************************************************************************
100	* Internal Functions *
101	*******************************************************************************/
102	static int vmR3CreateUVM(uint32_t cCpus, PCVMM2USERMETHODS pVmm2UserMethods, PUVM *ppUVM);
103	static int vmR3CreateU(PUVM pUVM, uint32_t cCpus, PFNCFGMCONSTRUCTOR pfnCFGMConstructor, void *pvUserCFGM);
104	static int vmR3ReadBaseConfig(PVM pVM, PUVM pUVM, uint32_t cCpus);
105	static int vmR3InitRing3(PVM pVM, PUVM pUVM);
106	static int vmR3InitRing0(PVM pVM);
107	#ifdef VBOX_WITH_RAW_MODE
108	static int vmR3InitRC(PVM pVM);
109	#endif
110	static int vmR3InitDoCompleted(PVM pVM, VMINITCOMPLETED enmWhat);
111	#ifdef LOG_ENABLED
112	static DECLCALLBACK(size_t) vmR3LogPrefixCallback(PRTLOGGER pLogger, char pchBuf, size_t cchBuf, void pvUser);
113	#endif
114	static void vmR3DestroyUVM(PUVM pUVM, uint32_t cMilliesEMTWait);
115	static void vmR3AtDtor(PVM pVM);
116	static bool vmR3ValidateStateTransition(VMSTATE enmStateOld, VMSTATE enmStateNew);
117	static void vmR3DoAtState(PVM pVM, PUVM pUVM, VMSTATE enmStateNew, VMSTATE enmStateOld);
118	static int vmR3TrySetState(PVM pVM, const char *pszWho, unsigned cTransitions, ...);
119	static void vmR3SetStateLocked(PVM pVM, PUVM pUVM, VMSTATE enmStateNew, VMSTATE enmStateOld);
120	static void vmR3SetState(PVM pVM, VMSTATE enmStateNew, VMSTATE enmStateOld);
121	static int vmR3SetErrorU(PUVM pUVM, int rc, RT_SRC_POS_DECL, const char *pszFormat, ...);
122
123
124	/**
125	* Do global VMM init.
126	*
127	* @returns VBox status code.
128	*/
129	VMMR3DECL(int) VMR3GlobalInit(void)
130	{
131	/*
132	* Only once.
133	*/
134	static bool volatile s_fDone = false;
135	if (s_fDone)
136	return VINF_SUCCESS;
137
138	#if defined(VBOX_WITH_DTRACE_R3) && !defined(VBOX_WITH_NATIVE_DTRACE)
139	SUPR3TracerRegisterModule(~(uintptr_t)0, "VBoxVMM", &g_VTGObjHeader, (uintptr_t)&g_VTGObjHeader,
140	SUP_TRACER_UMOD_FLAGS_SHARED);
141	#endif
142
143	/*
144	* We're done.
145	*/
146	s_fDone = true;
147	return VINF_SUCCESS;
148	}
149
150
151	/**
152	* Creates a virtual machine by calling the supplied configuration constructor.
153	*
154	* On successful returned the VM is powered, i.e. VMR3PowerOn() should be
155	* called to start the execution.
156	*
157	* @returns 0 on success.
158	* @returns VBox error code on failure.
159	* @param cCpus Number of virtual CPUs for the new VM.
160	* @param pVmm2UserMethods An optional method table that the VMM can use
161	* to make the user perform various action, like
162	* for instance state saving.
163	* @param pfnVMAtError Pointer to callback function for setting VM
164	* errors. This was added as an implicit call to
165	* VMR3AtErrorRegister() since there is no way the
166	* caller can get to the VM handle early enough to
167	* do this on its own.
168	* This is called in the context of an EMT.
169	* @param pvUserVM The user argument passed to pfnVMAtError.
170	* @param pfnCFGMConstructor Pointer to callback function for constructing the VM configuration tree.
171	* This is called in the context of an EMT0.
172	* @param pvUserCFGM The user argument passed to pfnCFGMConstructor.
173	* @param ppVM Where to optionally store the 'handle' of the
174	* created VM.
175	* @param ppUVM Where to optionally store the user 'handle' of
176	* the created VM, this includes one reference as
177	* if VMR3RetainUVM() was called. The caller
178	* MUST remember to pass the returned value to
179	* VMR3ReleaseUVM() once done with the handle.
180	*/
181	VMMR3DECL(int) VMR3Create(uint32_t cCpus, PCVMM2USERMETHODS pVmm2UserMethods,
182	PFNVMATERROR pfnVMAtError, void *pvUserVM,
183	PFNCFGMCONSTRUCTOR pfnCFGMConstructor, void *pvUserCFGM,
184	PVM ppVM, PUVM ppUVM)
185	{
186	LogFlow(("VMR3Create: cCpus=%RU32 pVmm2UserMethods=%p pfnVMAtError=%p pvUserVM=%p pfnCFGMConstructor=%p pvUserCFGM=%p ppVM=%p ppUVM=%p\n",
187	cCpus, pVmm2UserMethods, pfnVMAtError, pvUserVM, pfnCFGMConstructor, pvUserCFGM, ppVM, ppUVM));
188
189	if (pVmm2UserMethods)
190	{
191	AssertPtrReturn(pVmm2UserMethods, VERR_INVALID_POINTER);
192	AssertReturn(pVmm2UserMethods->u32Magic == VMM2USERMETHODS_MAGIC, VERR_INVALID_PARAMETER);
193	AssertReturn(pVmm2UserMethods->u32Version == VMM2USERMETHODS_VERSION, VERR_INVALID_PARAMETER);
194	AssertPtrNullReturn(pVmm2UserMethods->pfnSaveState, VERR_INVALID_POINTER);
195	AssertPtrNullReturn(pVmm2UserMethods->pfnNotifyEmtInit, VERR_INVALID_POINTER);
196	AssertPtrNullReturn(pVmm2UserMethods->pfnNotifyEmtTerm, VERR_INVALID_POINTER);
197	AssertPtrNullReturn(pVmm2UserMethods->pfnNotifyPdmtInit, VERR_INVALID_POINTER);
198	AssertPtrNullReturn(pVmm2UserMethods->pfnNotifyPdmtTerm, VERR_INVALID_POINTER);
199	AssertReturn(pVmm2UserMethods->u32EndMagic == VMM2USERMETHODS_MAGIC, VERR_INVALID_PARAMETER);
200	}
201	AssertPtrNullReturn(pfnVMAtError, VERR_INVALID_POINTER);
202	AssertPtrNullReturn(pfnCFGMConstructor, VERR_INVALID_POINTER);
203	AssertPtrNullReturn(ppVM, VERR_INVALID_POINTER);
204	AssertPtrNullReturn(ppUVM, VERR_INVALID_POINTER);
205	AssertReturn(ppVM \|\| ppUVM, VERR_INVALID_PARAMETER);
206
207	/*
208	* Because of the current hackiness of the applications
209	* we'll have to initialize global stuff from here.
210	* Later the applications will take care of this in a proper way.
211	*/
212	static bool fGlobalInitDone = false;
213	if (!fGlobalInitDone)
214	{
215	int rc = VMR3GlobalInit();
216	if (RT_FAILURE(rc))
217	return rc;
218	fGlobalInitDone = true;
219	}
220
221	/*
222	* Validate input.
223	*/
224	AssertLogRelMsgReturn(cCpus > 0 && cCpus <= VMM_MAX_CPU_COUNT, ("%RU32\n", cCpus), VERR_TOO_MANY_CPUS);
225
226	/*
227	* Create the UVM so we can register the at-error callback
228	* and consolidate a bit of cleanup code.
229	*/
230	PUVM pUVM = NULL; /* shuts up gcc */
231	int rc = vmR3CreateUVM(cCpus, pVmm2UserMethods, &pUVM);
232	if (RT_FAILURE(rc))
233	return rc;
234	if (pfnVMAtError)
235	rc = VMR3AtErrorRegister(pUVM, pfnVMAtError, pvUserVM);
236	if (RT_SUCCESS(rc))
237	{
238	/*
239	* Initialize the support library creating the session for this VM.
240	*/
241	rc = SUPR3Init(&pUVM->vm.s.pSession);
242	if (RT_SUCCESS(rc))
243	{
244	/*
245	* Call vmR3CreateU in the EMT thread and wait for it to finish.
246	*
247	* Note! VMCPUID_ANY is used here because VMR3ReqQueueU would have trouble
248	* submitting a request to a specific VCPU without a pVM. So, to make
249	* sure init is running on EMT(0), vmR3EmulationThreadWithId makes sure
250	* that only EMT(0) is servicing VMCPUID_ANY requests when pVM is NULL.
251	*/
252	PVMREQ pReq;
253	rc = VMR3ReqCallU(pUVM, VMCPUID_ANY, &pReq, RT_INDEFINITE_WAIT, VMREQFLAGS_VBOX_STATUS,
254	(PFNRT)vmR3CreateU, 4, pUVM, cCpus, pfnCFGMConstructor, pvUserCFGM);
255	if (RT_SUCCESS(rc))
256	{
257	rc = pReq->iStatus;
258	VMR3ReqFree(pReq);
259	if (RT_SUCCESS(rc))
260	{
261	/*
262	* Success!
263	*/
264	if (ppVM)
265	*ppVM = pUVM->pVM;
266	if (ppUVM)
267	{
268	VMR3RetainUVM(pUVM);
269	*ppUVM = pUVM;
270	}
271	LogFlow(("VMR3Create: returns VINF_SUCCESS (pVM=%p, pUVM=%p\n", pUVM->pVM, pUVM));
272	return VINF_SUCCESS;
273	}
274	}
275	else
276	AssertMsgFailed(("VMR3ReqCallU failed rc=%Rrc\n", rc));
277
278	/*
279	* An error occurred during VM creation. Set the error message directly
280	* using the initial callback, as the callback list might not exist yet.
281	*/
282	const char *pszError;
283	switch (rc)
284	{
285	case VERR_VMX_IN_VMX_ROOT_MODE:
286	#ifdef RT_OS_LINUX
287	pszError = N_("VirtualBox can't operate in VMX root mode. "
288	"Please disable the KVM kernel extension, recompile your kernel and reboot");
289	#else
290	pszError = N_("VirtualBox can't operate in VMX root mode. Please close all other virtualization programs.");
291	#endif
292	break;
293
294	#ifndef RT_OS_DARWIN
295	case VERR_HM_CONFIG_MISMATCH:
296	pszError = N_("VT-x/AMD-V is either not available on your host or disabled. "
297	"This hardware extension is required by the VM configuration");
298	break;
299	#endif
300
301	case VERR_SVM_IN_USE:
302	#ifdef RT_OS_LINUX
303	pszError = N_("VirtualBox can't enable the AMD-V extension. "
304	"Please disable the KVM kernel extension, recompile your kernel and reboot");
305	#else
306	pszError = N_("VirtualBox can't enable the AMD-V extension. Please close all other virtualization programs.");
307	#endif
308	break;
309
310	#ifdef RT_OS_LINUX
311	case VERR_SUPDRV_COMPONENT_NOT_FOUND:
312	pszError = N_("One of the kernel modules was not successfully loaded. Make sure "
313	"that no kernel modules from an older version of VirtualBox exist. "
314	"Then try to recompile and reload the kernel modules by executing "
315	"'/etc/init.d/vboxdrv setup' as root");
316	break;
317	#endif
318
319	case VERR_RAW_MODE_INVALID_SMP:
320	pszError = N_("VT-x/AMD-V is either not available on your host or disabled. "
321	"VirtualBox requires this hardware extension to emulate more than one "
322	"guest CPU");
323	break;
324
325	case VERR_SUPDRV_KERNEL_TOO_OLD_FOR_VTX:
326	#ifdef RT_OS_LINUX
327	pszError = N_("Because the host kernel is too old, VirtualBox cannot enable the VT-x "
328	"extension. Either upgrade your kernel to Linux 2.6.13 or later or disable "
329	"the VT-x extension in the VM settings. Note that without VT-x you have "
330	"to reduce the number of guest CPUs to one");
331	#else
332	pszError = N_("Because the host kernel is too old, VirtualBox cannot enable the VT-x "
333	"extension. Either upgrade your kernel or disable the VT-x extension in the "
334	"VM settings. Note that without VT-x you have to reduce the number of guest "
335	"CPUs to one");
336	#endif
337	break;
338
339	case VERR_PDM_DEVICE_NOT_FOUND:
340	pszError = N_("A virtual device is configured in the VM settings but the device "
341	"implementation is missing.\n"
342	"A possible reason for this error is a missing extension pack. Note "
343	"that as of VirtualBox 4.0, certain features (for example USB 2.0 "
344	"support and remote desktop) are only available from an 'extension "
345	"pack' which must be downloaded and installed separately");
346	break;
347
348	case VERR_PCI_PASSTHROUGH_NO_HM:
349	pszError = N_("PCI passthrough requires VT-x/AMD-V");
350	break;
351
352	case VERR_PCI_PASSTHROUGH_NO_NESTED_PAGING:
353	pszError = N_("PCI passthrough requires nested paging");
354	break;
355
356	default:
357	if (VMR3GetErrorCount(pUVM) == 0)
358	pszError = RTErrGetFull(rc);
359	else
360	pszError = NULL; /* already set. */
361	break;
362	}
363	if (pszError)
364	vmR3SetErrorU(pUVM, rc, RT_SRC_POS, pszError, rc);
365	}
366	else
367	{
368	/*
369	* An error occurred at support library initialization time (before the
370	* VM could be created). Set the error message directly using the
371	* initial callback, as the callback list doesn't exist yet.
372	*/
373	const char *pszError;
374	switch (rc)
375	{
376	case VERR_VM_DRIVER_LOAD_ERROR:
377	#ifdef RT_OS_LINUX
378	pszError = N_("VirtualBox kernel driver not loaded. The vboxdrv kernel module "
379	"was either not loaded or /dev/vboxdrv is not set up properly. "
380	"Re-setup the kernel module by executing "
381	"'/etc/init.d/vboxdrv setup' as root");
382	#else
383	pszError = N_("VirtualBox kernel driver not loaded");
384	#endif
385	break;
386	case VERR_VM_DRIVER_OPEN_ERROR:
387	pszError = N_("VirtualBox kernel driver cannot be opened");
388	break;
389	case VERR_VM_DRIVER_NOT_ACCESSIBLE:
390	#ifdef VBOX_WITH_HARDENING
391	/* This should only happen if the executable wasn't hardened - bad code/build. */
392	pszError = N_("VirtualBox kernel driver not accessible, permission problem. "
393	"Re-install VirtualBox. If you are building it yourself, you "
394	"should make sure it installed correctly and that the setuid "
395	"bit is set on the executables calling VMR3Create.");
396	#else
397	/* This should only happen when mixing builds or with the usual /dev/vboxdrv access issues. */
398	# if defined(RT_OS_DARWIN)
399	pszError = N_("VirtualBox KEXT is not accessible, permission problem. "
400	"If you have built VirtualBox yourself, make sure that you do not "
401	"have the vboxdrv KEXT from a different build or installation loaded.");
402	# elif defined(RT_OS_LINUX)
403	pszError = N_("VirtualBox kernel driver is not accessible, permission problem. "
404	"If you have built VirtualBox yourself, make sure that you do "
405	"not have the vboxdrv kernel module from a different build or "
406	"installation loaded. Also, make sure the vboxdrv udev rule gives "
407	"you the permission you need to access the device.");
408	# elif defined(RT_OS_WINDOWS)
409	pszError = N_("VirtualBox kernel driver is not accessible, permission problem.");
410	# else /* solaris, freebsd, ++. */
411	pszError = N_("VirtualBox kernel module is not accessible, permission problem. "
412	"If you have built VirtualBox yourself, make sure that you do "
413	"not have the vboxdrv kernel module from a different install loaded.");
414	# endif
415	#endif
416	break;
417	case VERR_INVALID_HANDLE: /** @todo track down and fix this error. */
418	case VERR_VM_DRIVER_NOT_INSTALLED:
419	#ifdef RT_OS_LINUX
420	pszError = N_("VirtualBox kernel driver not installed. The vboxdrv kernel module "
421	"was either not loaded or /dev/vboxdrv was not created for some "
422	"reason. Re-setup the kernel module by executing "
423	"'/etc/init.d/vboxdrv setup' as root");
424	#else
425	pszError = N_("VirtualBox kernel driver not installed");
426	#endif
427	break;
428	case VERR_NO_MEMORY:
429	pszError = N_("VirtualBox support library out of memory");
430	break;
431	case VERR_VERSION_MISMATCH:
432	case VERR_VM_DRIVER_VERSION_MISMATCH:
433	pszError = N_("The VirtualBox support driver which is running is from a different "
434	"version of VirtualBox. You can correct this by stopping all "
435	"running instances of VirtualBox and reinstalling the software.");
436	break;
437	default:
438	pszError = N_("Unknown error initializing kernel driver");
439	AssertMsgFailed(("Add error message for rc=%d (%Rrc)\n", rc, rc));
440	}
441	vmR3SetErrorU(pUVM, rc, RT_SRC_POS, pszError, rc);
442	}
443	}
444
445	/* cleanup */
446	vmR3DestroyUVM(pUVM, 2000);
447	LogFlow(("VMR3Create: returns %Rrc\n", rc));
448	return rc;
449	}
450
451
452	/**
453	* Creates the UVM.
454	*
455	* This will not initialize the support library even if vmR3DestroyUVM
456	* will terminate that.
457	*
458	* @returns VBox status code.
459	* @param cCpus Number of virtual CPUs
460	* @param pVmm2UserMethods Pointer to the optional VMM -> User method
461	* table.
462	* @param ppUVM Where to store the UVM pointer.
463	*/
464	static int vmR3CreateUVM(uint32_t cCpus, PCVMM2USERMETHODS pVmm2UserMethods, PUVM *ppUVM)
465	{
466	uint32_t i;
467
468	/*
469	* Create and initialize the UVM.
470	*/
471	PUVM pUVM = (PUVM)RTMemPageAllocZ(RT_OFFSETOF(UVM, aCpus[cCpus]));
472	AssertReturn(pUVM, VERR_NO_MEMORY);
473	pUVM->u32Magic = UVM_MAGIC;
474	pUVM->cCpus = cCpus;
475	pUVM->pVmm2UserMethods = pVmm2UserMethods;
476
477	AssertCompile(sizeof(pUVM->vm.s) <= sizeof(pUVM->vm.padding));
478
479	pUVM->vm.s.cUvmRefs = 1;
480	pUVM->vm.s.ppAtStateNext = &pUVM->vm.s.pAtState;
481	pUVM->vm.s.ppAtErrorNext = &pUVM->vm.s.pAtError;
482	pUVM->vm.s.ppAtRuntimeErrorNext = &pUVM->vm.s.pAtRuntimeError;
483
484	pUVM->vm.s.enmHaltMethod = VMHALTMETHOD_BOOTSTRAP;
485	RTUuidClear(&pUVM->vm.s.Uuid);
486
487	/* Initialize the VMCPU array in the UVM. */
488	for (i = 0; i < cCpus; i++)
489	{
490	pUVM->aCpus[i].pUVM = pUVM;
491	pUVM->aCpus[i].idCpu = i;
492	}
493
494	/* Allocate a TLS entry to store the VMINTUSERPERVMCPU pointer. */
495	int rc = RTTlsAllocEx(&pUVM->vm.s.idxTLS, NULL);
496	AssertRC(rc);
497	if (RT_SUCCESS(rc))
498	{
499	/* Allocate a halt method event semaphore for each VCPU. */
500	for (i = 0; i < cCpus; i++)
501	pUVM->aCpus[i].vm.s.EventSemWait = NIL_RTSEMEVENT;
502	for (i = 0; i < cCpus; i++)
503	{
504	rc = RTSemEventCreate(&pUVM->aCpus[i].vm.s.EventSemWait);
505	if (RT_FAILURE(rc))
506	break;
507	}
508	if (RT_SUCCESS(rc))
509	{
510	rc = RTCritSectInit(&pUVM->vm.s.AtStateCritSect);
511	if (RT_SUCCESS(rc))
512	{
513	rc = RTCritSectInit(&pUVM->vm.s.AtErrorCritSect);
514	if (RT_SUCCESS(rc))
515	{
516	/*
517	* Init fundamental (sub-)components - STAM, MMR3Heap and PDMLdr.
518	*/
519	rc = PDMR3InitUVM(pUVM);
520	if (RT_SUCCESS(rc))
521	{
522	rc = STAMR3InitUVM(pUVM);
523	if (RT_SUCCESS(rc))
524	{
525	rc = MMR3InitUVM(pUVM);
526	if (RT_SUCCESS(rc))
527	{
528	/*
529	* Start the emulation threads for all VMCPUs.
530	*/
531	for (i = 0; i < cCpus; i++)
532	{
533	rc = RTThreadCreateF(&pUVM->aCpus[i].vm.s.ThreadEMT, vmR3EmulationThread, &pUVM->aCpus[i],
534	_1M, RTTHREADTYPE_EMULATION, RTTHREADFLAGS_WAITABLE,
535	cCpus > 1 ? "EMT-%u" : "EMT", i);
536	if (RT_FAILURE(rc))
537	break;
538
539	pUVM->aCpus[i].vm.s.NativeThreadEMT = RTThreadGetNative(pUVM->aCpus[i].vm.s.ThreadEMT);
540	}
541
542	if (RT_SUCCESS(rc))
543	{
544	*ppUVM = pUVM;
545	return VINF_SUCCESS;
546	}
547
548	/* bail out. */
549	while (i-- > 0)
550	{
551	/** @todo rainy day: terminate the EMTs. */
552	}
553	MMR3TermUVM(pUVM);
554	}
555	STAMR3TermUVM(pUVM);
556	}
557	PDMR3TermUVM(pUVM);
558	}
559	RTCritSectDelete(&pUVM->vm.s.AtErrorCritSect);
560	}
561	RTCritSectDelete(&pUVM->vm.s.AtStateCritSect);
562	}
563	}
564	for (i = 0; i < cCpus; i++)
565	{
566	RTSemEventDestroy(pUVM->aCpus[i].vm.s.EventSemWait);
567	pUVM->aCpus[i].vm.s.EventSemWait = NIL_RTSEMEVENT;
568	}
569	RTTlsFree(pUVM->vm.s.idxTLS);
570	}
571	RTMemPageFree(pUVM, RT_OFFSETOF(UVM, aCpus[pUVM->cCpus]));
572	return rc;
573	}
574
575
576	/**
577	* Creates and initializes the VM.
578	*
579	* @thread EMT
580	*/
581	static int vmR3CreateU(PUVM pUVM, uint32_t cCpus, PFNCFGMCONSTRUCTOR pfnCFGMConstructor, void *pvUserCFGM)
582	{
583	/*
584	* Load the VMMR0.r0 module so that we can call GVMMR0CreateVM.
585	*/
586	int rc = PDMR3LdrLoadVMMR0U(pUVM);
587	if (RT_FAILURE(rc))
588	{
589	/** @todo we need a cleaner solution for this (VERR_VMX_IN_VMX_ROOT_MODE).
590	* bird: what about moving the message down here? Main picks the first message, right? */
591	if (rc == VERR_VMX_IN_VMX_ROOT_MODE)
592	return rc; /* proper error message set later on */
593	return vmR3SetErrorU(pUVM, rc, RT_SRC_POS, N_("Failed to load VMMR0.r0"));
594	}
595
596	/*
597	* Request GVMM to create a new VM for us.
598	*/
599	GVMMCREATEVMREQ CreateVMReq;
600	CreateVMReq.Hdr.u32Magic = SUPVMMR0REQHDR_MAGIC;
601	CreateVMReq.Hdr.cbReq = sizeof(CreateVMReq);
602	CreateVMReq.pSession = pUVM->vm.s.pSession;
603	CreateVMReq.pVMR0 = NIL_RTR0PTR;
604	CreateVMReq.pVMR3 = NULL;
605	CreateVMReq.cCpus = cCpus;
606	rc = SUPR3CallVMMR0Ex(NIL_RTR0PTR, NIL_VMCPUID, VMMR0_DO_GVMM_CREATE_VM, 0, &CreateVMReq.Hdr);
607	if (RT_SUCCESS(rc))
608	{
609	PVM pVM = pUVM->pVM = CreateVMReq.pVMR3;
610	AssertRelease(VALID_PTR(pVM));
611	AssertRelease(pVM->pVMR0 == CreateVMReq.pVMR0);
612	AssertRelease(pVM->pSession == pUVM->vm.s.pSession);
613	AssertRelease(pVM->cCpus == cCpus);
614	AssertRelease(pVM->uCpuExecutionCap == 100);
615	AssertRelease(pVM->offVMCPU == RT_UOFFSETOF(VM, aCpus));
616	AssertCompileMemberAlignment(VM, cpum, 64);
617	AssertCompileMemberAlignment(VM, tm, 64);
618	AssertCompileMemberAlignment(VM, aCpus, PAGE_SIZE);
619
620	Log(("VMR3Create: Created pUVM=%p pVM=%p pVMR0=%p hSelf=%#x cCpus=%RU32\n",
621	pUVM, pVM, pVM->pVMR0, pVM->hSelf, pVM->cCpus));
622
623	/*
624	* Initialize the VM structure and our internal data (VMINT).
625	*/
626	pVM->pUVM = pUVM;
627
628	for (VMCPUID i = 0; i < pVM->cCpus; i++)
629	{
630	pVM->aCpus[i].pUVCpu = &pUVM->aCpus[i];
631	pVM->aCpus[i].idCpu = i;
632	pVM->aCpus[i].hNativeThread = pUVM->aCpus[i].vm.s.NativeThreadEMT;
633	Assert(pVM->aCpus[i].hNativeThread != NIL_RTNATIVETHREAD);
634	/* hNativeThreadR0 is initialized on EMT registration. */
635	pUVM->aCpus[i].pVCpu = &pVM->aCpus[i];
636	pUVM->aCpus[i].pVM = pVM;
637	}
638
639
640	/*
641	* Init the configuration.
642	*/
643	rc = CFGMR3Init(pVM, pfnCFGMConstructor, pvUserCFGM);
644	if (RT_SUCCESS(rc))
645	{
646	rc = vmR3ReadBaseConfig(pVM, pUVM, cCpus);
647	if (RT_SUCCESS(rc))
648	{
649	/*
650	* Init the ring-3 components and ring-3 per cpu data, finishing it off
651	* by a relocation round (intermediate context finalization will do this).
652	*/
653	rc = vmR3InitRing3(pVM, pUVM);
654	if (RT_SUCCESS(rc))
655	{
656	rc = PGMR3FinalizeMappings(pVM);
657	if (RT_SUCCESS(rc))
658	{
659
660	LogFlow(("Ring-3 init succeeded\n"));
661
662	/*
663	* Init the Ring-0 components.
664	*/
665	rc = vmR3InitRing0(pVM);
666	if (RT_SUCCESS(rc))
667	{
668	/* Relocate again, because some switcher fixups depends on R0 init results. */
669	VMR3Relocate(pVM, 0);
670
671	#ifdef VBOX_WITH_DEBUGGER
672	/*
673	* Init the tcp debugger console if we're building
674	* with debugger support.
675	*/
676	void *pvUser = NULL;
677	rc = DBGCTcpCreate(pUVM, &pvUser);
678	if ( RT_SUCCESS(rc)
679	\|\| rc == VERR_NET_ADDRESS_IN_USE)
680	{
681	pUVM->vm.s.pvDBGC = pvUser;
682	#endif
683	/*
684	* Init the Raw-Mode Context components.
685	*/
686	#ifdef VBOX_WITH_RAW_MODE
687	rc = vmR3InitRC(pVM);
688	if (RT_SUCCESS(rc))
689	#endif
690	{
691	/*
692	* Now we can safely set the VM halt method to default.
693	*/
694	rc = vmR3SetHaltMethodU(pUVM, VMHALTMETHOD_DEFAULT);
695	if (RT_SUCCESS(rc))
696	{
697	/*
698	* Set the state and we're done.
699	*/
700	vmR3SetState(pVM, VMSTATE_CREATED, VMSTATE_CREATING);
701
702	#ifdef LOG_ENABLED
703	RTLogSetCustomPrefixCallback(NULL, vmR3LogPrefixCallback, pUVM);
704	#endif
705	return VINF_SUCCESS;
706	}
707	}
708	#ifdef VBOX_WITH_DEBUGGER
709	DBGCTcpTerminate(pUVM, pUVM->vm.s.pvDBGC);
710	pUVM->vm.s.pvDBGC = NULL;
711	}
712	#endif
713	//..
714	}
715	}
716	vmR3Destroy(pVM);
717	}
718	}
719	//..
720
721	/* Clean CFGM. */
722	int rc2 = CFGMR3Term(pVM);
723	AssertRC(rc2);
724	}
725
726	/*
727	* Do automatic cleanups while the VM structure is still alive and all
728	* references to it are still working.
729	*/
730	PDMR3CritSectBothTerm(pVM);
731
732	/*
733	* Drop all references to VM and the VMCPU structures, then
734	* tell GVMM to destroy the VM.
735	*/
736	pUVM->pVM = NULL;
737	for (VMCPUID i = 0; i < pUVM->cCpus; i++)
738	{
739	pUVM->aCpus[i].pVM = NULL;
740	pUVM->aCpus[i].pVCpu = NULL;
741	}
742	Assert(pUVM->vm.s.enmHaltMethod == VMHALTMETHOD_BOOTSTRAP);
743
744	if (pUVM->cCpus > 1)
745	{
746	/* Poke the other EMTs since they may have stale pVM and pVCpu references
747	on the stack (see VMR3WaitU for instance) if they've been awakened after
748	VM creation. */
749	for (VMCPUID i = 1; i < pUVM->cCpus; i++)
750	VMR3NotifyCpuFFU(&pUVM->aCpus[i], 0);
751	RTThreadSleep(RT_MIN(100 + 25 (pUVM->cCpus - 1), 500)); / very sophisticated */
752	}
753
754	int rc2 = SUPR3CallVMMR0Ex(CreateVMReq.pVMR0, 0 /idCpu/, VMMR0_DO_GVMM_DESTROY_VM, 0, NULL);
755	AssertRC(rc2);
756	}
757	else
758	vmR3SetErrorU(pUVM, rc, RT_SRC_POS, N_("VM creation failed (GVMM)"));
759
760	LogFlow(("vmR3CreateU: returns %Rrc\n", rc));
761	return rc;
762	}
763
764
765	/**
766	* Reads the base configuation from CFGM.
767	*
768	* @returns VBox status code.
769	* @param pVM The cross context VM structure.
770	* @param pUVM The user mode VM structure.
771	* @param cCpus The CPU count given to VMR3Create.
772	*/
773	static int vmR3ReadBaseConfig(PVM pVM, PUVM pUVM, uint32_t cCpus)
774	{
775	int rc;
776	bool fEnabled;
777	PCFGMNODE pRoot = CFGMR3GetRoot(pVM);
778
779	/*
780	* If executing in fake suplib mode disable RR3 and RR0 in the config.
781	*/
782	const char *psz = RTEnvGet("VBOX_SUPLIB_FAKE");
783	if (psz && !strcmp(psz, "fake"))
784	{
785	CFGMR3RemoveValue(pRoot, "RawR3Enabled");
786	CFGMR3InsertInteger(pRoot, "RawR3Enabled", 0);
787	CFGMR3RemoveValue(pRoot, "RawR0Enabled");
788	CFGMR3InsertInteger(pRoot, "RawR0Enabled", 0);
789	}
790
791	/*
792	* Base EM and HM config properties.
793	*/
794	Assert(pVM->fRecompileUser == false); /* ASSUMES all zeros at this point */
795	#ifdef VBOX_WITH_RAW_MODE
796	rc = CFGMR3QueryBoolDef(pRoot, "RawR3Enabled", &fEnabled, false); AssertRCReturn(rc, rc);
797	pVM->fRecompileUser = !fEnabled;
798	rc = CFGMR3QueryBoolDef(pRoot, "RawR0Enabled", &fEnabled, false); AssertRCReturn(rc, rc);
799	pVM->fRecompileSupervisor = !fEnabled;
800	# ifdef VBOX_WITH_RAW_RING1
801	rc = CFGMR3QueryBoolDef(pRoot, "RawR1Enabled", &pVM->fRawRing1Enabled, false);
802	# endif
803	rc = CFGMR3QueryBoolDef(pRoot, "PATMEnabled", &pVM->fPATMEnabled, true); AssertRCReturn(rc, rc);
804	rc = CFGMR3QueryBoolDef(pRoot, "CSAMEnabled", &pVM->fCSAMEnabled, true); AssertRCReturn(rc, rc);
805	rc = CFGMR3QueryBoolDef(pRoot, "HMEnabled", &pVM->fHMEnabled, true); AssertRCReturn(rc, rc);
806	#else
807	pVM->fHMEnabled = true;
808	#endif
809	Assert(!pVM->fHMEnabledFixed);
810	LogRel(("VM: fHMEnabled=%RTbool (configured) fRecompileUser=%RTbool fRecompileSupervisor=%RTbool\n"
811	"VM: fRawRing1Enabled=%RTbool CSAM=%RTbool PATM=%RTbool\n",
812	pVM->fHMEnabled, pVM->fRecompileUser, pVM->fRecompileSupervisor,
813	pVM->fRawRing1Enabled, pVM->fCSAMEnabled, pVM->fPATMEnabled));
814
815
816	/*
817	* Make sure the CPU count in the config data matches.
818	*/
819	uint32_t cCPUsCfg;
820	rc = CFGMR3QueryU32Def(pRoot, "NumCPUs", &cCPUsCfg, 1);
821	AssertLogRelMsgRCReturn(rc, ("Configuration error: Querying \"NumCPUs\" as integer failed, rc=%Rrc\n", rc), rc);
822	AssertLogRelMsgReturn(cCPUsCfg == cCpus,
823	("Configuration error: \"NumCPUs\"=%RU32 and VMR3Create::cCpus=%RU32 does not match!\n",
824	cCPUsCfg, cCpus),
825	VERR_INVALID_PARAMETER);
826
827	/*
828	* Get the CPU execution cap.
829	*/
830	rc = CFGMR3QueryU32Def(pRoot, "CpuExecutionCap", &pVM->uCpuExecutionCap, 100);
831	AssertLogRelMsgRCReturn(rc, ("Configuration error: Querying \"CpuExecutionCap\" as integer failed, rc=%Rrc\n", rc), rc);
832
833	/*
834	* Get the VM name and UUID.
835	*/
836	rc = CFGMR3QueryStringAllocDef(pRoot, "Name", &pUVM->vm.s.pszName, "<unknown>");
837	AssertLogRelMsgRCReturn(rc, ("Configuration error: Querying \"Name\" failed, rc=%Rrc\n", rc), rc);
838
839	rc = CFGMR3QueryBytes(pRoot, "UUID", &pUVM->vm.s.Uuid, sizeof(pUVM->vm.s.Uuid));
840	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
841	rc = VINF_SUCCESS;
842	AssertLogRelMsgRCReturn(rc, ("Configuration error: Querying \"UUID\" failed, rc=%Rrc\n", rc), rc);
843
844	return VINF_SUCCESS;
845	}
846
847
848	/**
849	* Register the calling EMT with GVM.
850	*
851	* @returns VBox status code.
852	* @param pVM Pointer to the VM.
853	* @param idCpu The Virtual CPU ID.
854	*/
855	static DECLCALLBACK(int) vmR3RegisterEMT(PVM pVM, VMCPUID idCpu)
856	{
857	Assert(VMMGetCpuId(pVM) == idCpu);
858	int rc = SUPR3CallVMMR0Ex(pVM->pVMR0, idCpu, VMMR0_DO_GVMM_REGISTER_VMCPU, 0, NULL);
859	if (RT_FAILURE(rc))
860	LogRel(("idCpu=%u rc=%Rrc\n", idCpu, rc));
861	return rc;
862	}
863
864
865	/**
866	* Initializes all R3 components of the VM
867	*/
868	static int vmR3InitRing3(PVM pVM, PUVM pUVM)
869	{
870	int rc;
871
872	/*
873	* Register the other EMTs with GVM.
874	*/
875	for (VMCPUID idCpu = 1; idCpu < pVM->cCpus; idCpu++)
876	{
877	rc = VMR3ReqCallWait(pVM, idCpu, (PFNRT)vmR3RegisterEMT, 2, pVM, idCpu);
878	if (RT_FAILURE(rc))
879	return rc;
880	}
881
882	/*
883	* Register statistics.
884	*/
885	STAM_REG(pVM, &pVM->StatTotalInGC, STAMTYPE_PROFILE_ADV, "/PROF/VM/InGC", STAMUNIT_TICKS_PER_CALL, "Profiling the total time spent in GC.");
886	STAM_REG(pVM, &pVM->StatSwitcherToGC, STAMTYPE_PROFILE_ADV, "/PROF/VM/SwitchToGC", STAMUNIT_TICKS_PER_CALL, "Profiling switching to GC.");
887	STAM_REG(pVM, &pVM->StatSwitcherToHC, STAMTYPE_PROFILE_ADV, "/PROF/VM/SwitchToHC", STAMUNIT_TICKS_PER_CALL, "Profiling switching to HC.");
888	STAM_REG(pVM, &pVM->StatSwitcherSaveRegs, STAMTYPE_PROFILE_ADV, "/VM/Switcher/ToGC/SaveRegs", STAMUNIT_TICKS_PER_CALL,"Profiling switching to GC.");
889	STAM_REG(pVM, &pVM->StatSwitcherSysEnter, STAMTYPE_PROFILE_ADV, "/VM/Switcher/ToGC/SysEnter", STAMUNIT_TICKS_PER_CALL,"Profiling switching to GC.");
890	STAM_REG(pVM, &pVM->StatSwitcherDebug, STAMTYPE_PROFILE_ADV, "/VM/Switcher/ToGC/Debug", STAMUNIT_TICKS_PER_CALL,"Profiling switching to GC.");
891	STAM_REG(pVM, &pVM->StatSwitcherCR0, STAMTYPE_PROFILE_ADV, "/VM/Switcher/ToGC/CR0", STAMUNIT_TICKS_PER_CALL, "Profiling switching to GC.");
892	STAM_REG(pVM, &pVM->StatSwitcherCR4, STAMTYPE_PROFILE_ADV, "/VM/Switcher/ToGC/CR4", STAMUNIT_TICKS_PER_CALL, "Profiling switching to GC.");
893	STAM_REG(pVM, &pVM->StatSwitcherLgdt, STAMTYPE_PROFILE_ADV, "/VM/Switcher/ToGC/Lgdt", STAMUNIT_TICKS_PER_CALL, "Profiling switching to GC.");
894	STAM_REG(pVM, &pVM->StatSwitcherLidt, STAMTYPE_PROFILE_ADV, "/VM/Switcher/ToGC/Lidt", STAMUNIT_TICKS_PER_CALL, "Profiling switching to GC.");
895	STAM_REG(pVM, &pVM->StatSwitcherLldt, STAMTYPE_PROFILE_ADV, "/VM/Switcher/ToGC/Lldt", STAMUNIT_TICKS_PER_CALL, "Profiling switching to GC.");
896	STAM_REG(pVM, &pVM->StatSwitcherTSS, STAMTYPE_PROFILE_ADV, "/VM/Switcher/ToGC/TSS", STAMUNIT_TICKS_PER_CALL, "Profiling switching to GC.");
897	STAM_REG(pVM, &pVM->StatSwitcherJmpCR3, STAMTYPE_PROFILE_ADV, "/VM/Switcher/ToGC/JmpCR3", STAMUNIT_TICKS_PER_CALL,"Profiling switching to GC.");
898	STAM_REG(pVM, &pVM->StatSwitcherRstrRegs, STAMTYPE_PROFILE_ADV, "/VM/Switcher/ToGC/RstrRegs", STAMUNIT_TICKS_PER_CALL,"Profiling switching to GC.");
899
900	for (VMCPUID idCpu = 0; idCpu < pVM->cCpus; idCpu++)
901	{
902	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);
903	AssertRC(rc);
904	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);
905	AssertRC(rc);
906	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);
907	AssertRC(rc);
908	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);
909	AssertRC(rc);
910	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);
911	AssertRC(rc);
912	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);
913	AssertRC(rc);
914	}
915
916	STAM_REG(pVM, &pUVM->vm.s.StatReqAllocNew, STAMTYPE_COUNTER, "/VM/Req/AllocNew", STAMUNIT_OCCURENCES, "Number of VMR3ReqAlloc returning a new packet.");
917	STAM_REG(pVM, &pUVM->vm.s.StatReqAllocRaces, STAMTYPE_COUNTER, "/VM/Req/AllocRaces", STAMUNIT_OCCURENCES, "Number of VMR3ReqAlloc causing races.");
918	STAM_REG(pVM, &pUVM->vm.s.StatReqAllocRecycled, STAMTYPE_COUNTER, "/VM/Req/AllocRecycled", STAMUNIT_OCCURENCES, "Number of VMR3ReqAlloc returning a recycled packet.");
919	STAM_REG(pVM, &pUVM->vm.s.StatReqFree, STAMTYPE_COUNTER, "/VM/Req/Free", STAMUNIT_OCCURENCES, "Number of VMR3ReqFree calls.");
920	STAM_REG(pVM, &pUVM->vm.s.StatReqFreeOverflow, STAMTYPE_COUNTER, "/VM/Req/FreeOverflow", STAMUNIT_OCCURENCES, "Number of times the request was actually freed.");
921	STAM_REG(pVM, &pUVM->vm.s.StatReqProcessed, STAMTYPE_COUNTER, "/VM/Req/Processed", STAMUNIT_OCCURENCES, "Number of processed requests (any queue).");
922	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.");
923	STAM_REG(pVM, &pUVM->vm.s.StatReqPushBackRaces, STAMTYPE_COUNTER, "/VM/Req/PushBackRaces", STAMUNIT_OCCURENCES, "Number of push back races.");
924
925	/*
926	* Init all R3 components, the order here might be important.
927	* HM shall be initialized first!
928	*/
929	rc = HMR3Init(pVM);
930	if (RT_SUCCESS(rc))
931	{
932	rc = MMR3Init(pVM);
933	if (RT_SUCCESS(rc))
934	{
935	rc = CPUMR3Init(pVM);
936	if (RT_SUCCESS(rc))
937	{
938	rc = PGMR3Init(pVM);
939	if (RT_SUCCESS(rc))
940	{
941	#ifdef VBOX_WITH_REM
942	rc = REMR3Init(pVM);
943	#endif
944	if (RT_SUCCESS(rc))
945	{
946	rc = MMR3InitPaging(pVM);
947	if (RT_SUCCESS(rc))
948	rc = TMR3Init(pVM);
949	if (RT_SUCCESS(rc))
950	{
951	rc = FTMR3Init(pVM);
952	if (RT_SUCCESS(rc))
953	{
954	rc = VMMR3Init(pVM);
955	if (RT_SUCCESS(rc))
956	{
957	rc = SELMR3Init(pVM);
958	if (RT_SUCCESS(rc))
959	{
960	rc = TRPMR3Init(pVM);
961	if (RT_SUCCESS(rc))
962	{
963	#ifdef VBOX_WITH_RAW_MODE
964	rc = CSAMR3Init(pVM);
965	if (RT_SUCCESS(rc))
966	{
967	rc = PATMR3Init(pVM);
968	if (RT_SUCCESS(rc))
969	{
970	#endif
971	rc = IOMR3Init(pVM);
972	if (RT_SUCCESS(rc))
973	{
974	rc = EMR3Init(pVM);
975	if (RT_SUCCESS(rc))
976	{
977	rc = IEMR3Init(pVM);
978	if (RT_SUCCESS(rc))
979	{
980	rc = DBGFR3Init(pVM);
981	if (RT_SUCCESS(rc))
982	{
983	rc = PDMR3Init(pVM);
984	if (RT_SUCCESS(rc))
985	{
986	rc = PGMR3InitDynMap(pVM);
987	if (RT_SUCCESS(rc))
988	rc = MMR3HyperInitFinalize(pVM);
989	#ifdef VBOX_WITH_RAW_MODE
990	if (RT_SUCCESS(rc))
991	rc = PATMR3InitFinalize(pVM);
992	#endif
993	if (RT_SUCCESS(rc))
994	rc = PGMR3InitFinalize(pVM);
995	if (RT_SUCCESS(rc))
996	rc = SELMR3InitFinalize(pVM);
997	if (RT_SUCCESS(rc))
998	rc = TMR3InitFinalize(pVM);
999	#ifdef VBOX_WITH_REM
1000	if (RT_SUCCESS(rc))
1001	rc = REMR3InitFinalize(pVM);
1002	#endif
1003	if (RT_SUCCESS(rc))
1004	{
1005	PGMR3MemSetup(pVM, false /fAtReset/);
1006	PDMR3MemSetup(pVM, false /fAtReset/);
1007	}
1008	if (RT_SUCCESS(rc))
1009	rc = vmR3InitDoCompleted(pVM, VMINITCOMPLETED_RING3);
1010	if (RT_SUCCESS(rc))
1011	{
1012	LogFlow(("vmR3InitRing3: returns %Rrc\n", VINF_SUCCESS));
1013	return VINF_SUCCESS;
1014	}
1015
1016	int rc2 = PDMR3Term(pVM);
1017	AssertRC(rc2);
1018	}
1019	int rc2 = DBGFR3Term(pVM);
1020	AssertRC(rc2);
1021	}
1022	int rc2 = IEMR3Term(pVM);
1023	AssertRC(rc2);
1024	}
1025	int rc2 = EMR3Term(pVM);
1026	AssertRC(rc2);
1027	}
1028	int rc2 = IOMR3Term(pVM);
1029	AssertRC(rc2);
1030	}
1031	#ifdef VBOX_WITH_RAW_MODE
1032	int rc2 = PATMR3Term(pVM);
1033	AssertRC(rc2);
1034	}
1035	int rc2 = CSAMR3Term(pVM);
1036	AssertRC(rc2);
1037	}
1038	#endif
1039	int rc2 = TRPMR3Term(pVM);
1040	AssertRC(rc2);
1041	}
1042	int rc2 = SELMR3Term(pVM);
1043	AssertRC(rc2);
1044	}
1045	int rc2 = VMMR3Term(pVM);
1046	AssertRC(rc2);
1047	}
1048	int rc2 = FTMR3Term(pVM);
1049	AssertRC(rc2);
1050	}
1051	int rc2 = TMR3Term(pVM);
1052	AssertRC(rc2);
1053	}
1054	#ifdef VBOX_WITH_REM
1055	int rc2 = REMR3Term(pVM);
1056	AssertRC(rc2);
1057	#endif
1058	}
1059	int rc2 = PGMR3Term(pVM);
1060	AssertRC(rc2);
1061	}
1062	//int rc2 = CPUMR3Term(pVM);
1063	//AssertRC(rc2);
1064	}
1065	/* MMR3Term is not called here because it'll kill the heap. */
1066	}
1067	int rc2 = HMR3Term(pVM);
1068	AssertRC(rc2);
1069	}
1070
1071
1072	LogFlow(("vmR3InitRing3: returns %Rrc\n", rc));
1073	return rc;
1074	}
1075
1076
1077	/**
1078	* Initializes all R0 components of the VM
1079	*/
1080	static int vmR3InitRing0(PVM pVM)
1081	{
1082	LogFlow(("vmR3InitRing0:\n"));
1083
1084	/*
1085	* Check for FAKE suplib mode.
1086	*/
1087	int rc = VINF_SUCCESS;
1088	const char *psz = RTEnvGet("VBOX_SUPLIB_FAKE");
1089	if (!psz \|\| strcmp(psz, "fake"))
1090	{
1091	/*
1092	* Call the VMMR0 component and let it do the init.
1093	*/
1094	rc = VMMR3InitR0(pVM);
1095	}
1096	else
1097	Log(("vmR3InitRing0: skipping because of VBOX_SUPLIB_FAKE=fake\n"));
1098
1099	/*
1100	* Do notifications and return.
1101	*/
1102	if (RT_SUCCESS(rc))
1103	rc = vmR3InitDoCompleted(pVM, VMINITCOMPLETED_RING0);
1104	if (RT_SUCCESS(rc))
1105	rc = vmR3InitDoCompleted(pVM, VMINITCOMPLETED_HM);
1106
1107	/** @todo Move this to the VMINITCOMPLETED_HM notification handler. */
1108	if (RT_SUCCESS(rc))
1109	CPUMR3SetHWVirtEx(pVM, HMIsEnabled(pVM));
1110
1111	LogFlow(("vmR3InitRing0: returns %Rrc\n", rc));
1112	return rc;
1113	}
1114
1115
1116	#ifdef VBOX_WITH_RAW_MODE
1117	/**
1118	* Initializes all RC components of the VM
1119	*/
1120	static int vmR3InitRC(PVM pVM)
1121	{
1122	LogFlow(("vmR3InitRC:\n"));
1123
1124	/*
1125	* Check for FAKE suplib mode.
1126	*/
1127	int rc = VINF_SUCCESS;
1128	const char *psz = RTEnvGet("VBOX_SUPLIB_FAKE");
1129	if (!psz \|\| strcmp(psz, "fake"))
1130	{
1131	/*
1132	* Call the VMMR0 component and let it do the init.
1133	*/
1134	rc = VMMR3InitRC(pVM);
1135	}
1136	else
1137	Log(("vmR3InitRC: skipping because of VBOX_SUPLIB_FAKE=fake\n"));
1138
1139	/*
1140	* Do notifications and return.
1141	*/
1142	if (RT_SUCCESS(rc))
1143	rc = vmR3InitDoCompleted(pVM, VMINITCOMPLETED_RC);
1144	LogFlow(("vmR3InitRC: returns %Rrc\n", rc));
1145	return rc;
1146	}
1147	#endif /* VBOX_WITH_RAW_MODE */
1148
1149
1150	/**
1151	* Do init completed notifications.
1152	*
1153	* @returns VBox status code.
1154	* @param pVM Pointer to the VM.
1155	* @param enmWhat What's completed.
1156	*/
1157	static int vmR3InitDoCompleted(PVM pVM, VMINITCOMPLETED enmWhat)
1158	{
1159	int rc = VMMR3InitCompleted(pVM, enmWhat);
1160	if (RT_SUCCESS(rc))
1161	rc = HMR3InitCompleted(pVM, enmWhat);
1162	if (RT_SUCCESS(rc))
1163	rc = PGMR3InitCompleted(pVM, enmWhat);
1164	return rc;
1165	}
1166
1167
1168	#ifdef LOG_ENABLED
1169	/**
1170	* Logger callback for inserting a custom prefix.
1171	*
1172	* @returns Number of chars written.
1173	* @param pLogger The logger.
1174	* @param pchBuf The output buffer.
1175	* @param cchBuf The output buffer size.
1176	* @param pvUser Pointer to the UVM structure.
1177	*/
1178	static DECLCALLBACK(size_t) vmR3LogPrefixCallback(PRTLOGGER pLogger, char pchBuf, size_t cchBuf, void pvUser)
1179	{
1180	AssertReturn(cchBuf >= 2, 0);
1181	PUVM pUVM = (PUVM)pvUser;
1182	PUVMCPU pUVCpu = (PUVMCPU)RTTlsGet(pUVM->vm.s.idxTLS);
1183	if (pUVCpu)
1184	{
1185	static const char s_szHex[17] = "0123456789abcdef";
1186	VMCPUID const idCpu = pUVCpu->idCpu;
1187	pchBuf[1] = s_szHex[ idCpu & 15];
1188	pchBuf[0] = s_szHex[(idCpu >> 4) & 15];
1189	}
1190	else
1191	{
1192	pchBuf[0] = 'x';
1193	pchBuf[1] = 'y';
1194	}
1195
1196	NOREF(pLogger);
1197	return 2;
1198	}
1199	#endif /* LOG_ENABLED */
1200
1201
1202	/**
1203	* Calls the relocation functions for all VMM components so they can update
1204	* any GC pointers. When this function is called all the basic VM members
1205	* have been updated and the actual memory relocation have been done
1206	* by the PGM/MM.
1207	*
1208	* This is used both on init and on runtime relocations.
1209	*
1210	* @param pVM Pointer to the VM.
1211	* @param offDelta Relocation delta relative to old location.
1212	*/
1213	VMMR3_INT_DECL(void) VMR3Relocate(PVM pVM, RTGCINTPTR offDelta)
1214	{
1215	LogFlow(("VMR3Relocate: offDelta=%RGv\n", offDelta));
1216
1217	/*
1218	* The order here is very important!
1219	*/
1220	PGMR3Relocate(pVM, offDelta);
1221	PDMR3LdrRelocateU(pVM->pUVM, offDelta);
1222	PGMR3Relocate(pVM, 0); /* Repeat after PDM relocation. */
1223	CPUMR3Relocate(pVM);
1224	HMR3Relocate(pVM);
1225	SELMR3Relocate(pVM);
1226	VMMR3Relocate(pVM, offDelta);
1227	SELMR3Relocate(pVM); /* !hack! fix stack! */
1228	TRPMR3Relocate(pVM, offDelta);
1229	#ifdef VBOX_WITH_RAW_MODE
1230	PATMR3Relocate(pVM);
1231	CSAMR3Relocate(pVM, offDelta);
1232	#endif
1233	IOMR3Relocate(pVM, offDelta);
1234	EMR3Relocate(pVM);
1235	TMR3Relocate(pVM, offDelta);
1236	IEMR3Relocate(pVM);
1237	DBGFR3Relocate(pVM, offDelta);
1238	PDMR3Relocate(pVM, offDelta);
1239	}
1240
1241
1242	/**
1243	* EMT rendezvous worker for VMR3PowerOn.
1244	*
1245	* @returns VERR_VM_INVALID_VM_STATE or VINF_SUCCESS. (This is a strict return
1246	* code, see FNVMMEMTRENDEZVOUS.)
1247	*
1248	* @param pVM Pointer to the VM.
1249	* @param pVCpu Pointer to the VMCPU of the EMT.
1250	* @param pvUser Ignored.
1251	*/
1252	static DECLCALLBACK(VBOXSTRICTRC) vmR3PowerOn(PVM pVM, PVMCPU pVCpu, void *pvUser)
1253	{
1254	LogFlow(("vmR3PowerOn: pVM=%p pVCpu=%p/#%u\n", pVM, pVCpu, pVCpu->idCpu));
1255	Assert(!pvUser); NOREF(pvUser);
1256
1257	/*
1258	* The first thread thru here tries to change the state. We shouldn't be
1259	* called again if this fails.
1260	*/
1261	if (pVCpu->idCpu == pVM->cCpus - 1)
1262	{
1263	int rc = vmR3TrySetState(pVM, "VMR3PowerOn", 1, VMSTATE_POWERING_ON, VMSTATE_CREATED);
1264	if (RT_FAILURE(rc))
1265	return rc;
1266	}
1267
1268	VMSTATE enmVMState = VMR3GetState(pVM);
1269	AssertMsgReturn(enmVMState == VMSTATE_POWERING_ON,
1270	("%s\n", VMR3GetStateName(enmVMState)),
1271	VERR_VM_UNEXPECTED_UNSTABLE_STATE);
1272
1273	/*
1274	* All EMTs changes their state to started.
1275	*/
1276	VMCPU_SET_STATE(pVCpu, VMCPUSTATE_STARTED);
1277
1278	/*
1279	* EMT(0) is last thru here and it will make the notification calls
1280	* and advance the state.
1281	*/
1282	if (pVCpu->idCpu == 0)
1283	{
1284	PDMR3PowerOn(pVM);
1285	vmR3SetState(pVM, VMSTATE_RUNNING, VMSTATE_POWERING_ON);
1286	}
1287
1288	return VINF_SUCCESS;
1289	}
1290
1291
1292	/**
1293	* Powers on the virtual machine.
1294	*
1295	* @returns VBox status code.
1296	*
1297	* @param pUVM The VM to power on.
1298	*
1299	* @thread Any thread.
1300	* @vmstate Created
1301	* @vmstateto PoweringOn+Running
1302	*/
1303	VMMR3DECL(int) VMR3PowerOn(PUVM pUVM)
1304	{
1305	LogFlow(("VMR3PowerOn: pUVM=%p\n", pUVM));
1306	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
1307	PVM pVM = pUVM->pVM;
1308	VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
1309
1310	/*
1311	* Gather all the EMTs to reduce the init TSC drift and keep
1312	* the state changing APIs a bit uniform.
1313	*/
1314	int rc = VMMR3EmtRendezvous(pVM, VMMEMTRENDEZVOUS_FLAGS_TYPE_DESCENDING \| VMMEMTRENDEZVOUS_FLAGS_STOP_ON_ERROR,
1315	vmR3PowerOn, NULL);
1316	LogFlow(("VMR3PowerOn: returns %Rrc\n", rc));
1317	return rc;
1318	}
1319
1320
1321	/**
1322	* Does the suspend notifications.
1323	*
1324	* @param pVM Pointer to the VM.
1325	* @thread EMT(0)
1326	*/
1327	static void vmR3SuspendDoWork(PVM pVM)
1328	{
1329	PDMR3Suspend(pVM);
1330	}
1331
1332
1333	/**
1334	* EMT rendezvous worker for VMR3Suspend.
1335	*
1336	* @returns VERR_VM_INVALID_VM_STATE or VINF_EM_SUSPEND. (This is a strict
1337	* return code, see FNVMMEMTRENDEZVOUS.)
1338	*
1339	* @param pVM Pointer to the VM.
1340	* @param pVCpu Pointer to the VMCPU of the EMT.
1341	* @param pvUser Ignored.
1342	*/
1343	static DECLCALLBACK(VBOXSTRICTRC) vmR3Suspend(PVM pVM, PVMCPU pVCpu, void *pvUser)
1344	{
1345	LogFlow(("vmR3Suspend: pVM=%p pVCpu=%p/#%u\n", pVM, pVCpu, pVCpu->idCpu));
1346	Assert(!pvUser); NOREF(pvUser);
1347
1348	/*
1349	* The first EMT switches the state to suspending. If this fails because
1350	* something was racing us in one way or the other, there will be no more
1351	* calls and thus the state assertion below is not going to annoy anyone.
1352	*/
1353	if (pVCpu->idCpu == pVM->cCpus - 1)
1354	{
1355	int rc = vmR3TrySetState(pVM, "VMR3Suspend", 2,
1356	VMSTATE_SUSPENDING, VMSTATE_RUNNING,
1357	VMSTATE_SUSPENDING_EXT_LS, VMSTATE_RUNNING_LS);
1358	if (RT_FAILURE(rc))
1359	return rc;
1360	}
1361
1362	VMSTATE enmVMState = VMR3GetState(pVM);
1363	AssertMsgReturn( enmVMState == VMSTATE_SUSPENDING
1364	\|\| enmVMState == VMSTATE_SUSPENDING_EXT_LS,
1365	("%s\n", VMR3GetStateName(enmVMState)),
1366	VERR_VM_UNEXPECTED_UNSTABLE_STATE);
1367
1368	/*
1369	* EMT(0) does the actually suspending after all the other CPUs have
1370	* been thru here.
1371	*/
1372	if (pVCpu->idCpu == 0)
1373	{
1374	vmR3SuspendDoWork(pVM);
1375
1376	int rc = vmR3TrySetState(pVM, "VMR3Suspend", 2,
1377	VMSTATE_SUSPENDED, VMSTATE_SUSPENDING,
1378	VMSTATE_SUSPENDED_EXT_LS, VMSTATE_SUSPENDING_EXT_LS);
1379	if (RT_FAILURE(rc))
1380	return VERR_VM_UNEXPECTED_UNSTABLE_STATE;
1381	}
1382
1383	return VINF_EM_SUSPEND;
1384	}
1385
1386
1387	/**
1388	* Suspends a running VM.
1389	*
1390	* @returns VBox status code. When called on EMT, this will be a strict status
1391	* code that has to be propagated up the call stack.
1392	*
1393	* @param pUVM The VM to suspend.
1394	*
1395	* @thread Any thread.
1396	* @vmstate Running or RunningLS
1397	* @vmstateto Suspending + Suspended or SuspendingExtLS + SuspendedExtLS
1398	*/
1399	VMMR3DECL(int) VMR3Suspend(PUVM pUVM)
1400	{
1401	LogFlow(("VMR3Suspend: pUVM=%p\n", pUVM));
1402	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
1403
1404	/*
1405	* Gather all the EMTs to make sure there are no races before
1406	* changing the VM state.
1407	*/
1408	int rc = VMMR3EmtRendezvous(pUVM->pVM, VMMEMTRENDEZVOUS_FLAGS_TYPE_DESCENDING \| VMMEMTRENDEZVOUS_FLAGS_STOP_ON_ERROR,
1409	vmR3Suspend, NULL);
1410	LogFlow(("VMR3Suspend: returns %Rrc\n", rc));
1411	return rc;
1412	}
1413
1414
1415	/**
1416	* EMT rendezvous worker for VMR3Resume.
1417	*
1418	* @returns VERR_VM_INVALID_VM_STATE or VINF_EM_RESUME. (This is a strict
1419	* return code, see FNVMMEMTRENDEZVOUS.)
1420	*
1421	* @param pVM Pointer to the VM.
1422	* @param pVCpu Pointer to the VMCPU of the EMT.
1423	* @param pvUser Ignored.
1424	*/
1425	static DECLCALLBACK(VBOXSTRICTRC) vmR3Resume(PVM pVM, PVMCPU pVCpu, void *pvUser)
1426	{
1427	LogFlow(("vmR3Resume: pVM=%p pVCpu=%p/#%u\n", pVM, pVCpu, pVCpu->idCpu));
1428	Assert(!pvUser); NOREF(pvUser);
1429
1430	/*
1431	* The first thread thru here tries to change the state. We shouldn't be
1432	* called again if this fails.
1433	*/
1434	if (pVCpu->idCpu == pVM->cCpus - 1)
1435	{
1436	int rc = vmR3TrySetState(pVM, "VMR3Resume", 1, VMSTATE_RESUMING, VMSTATE_SUSPENDED);
1437	if (RT_FAILURE(rc))
1438	return rc;
1439	}
1440
1441	VMSTATE enmVMState = VMR3GetState(pVM);
1442	AssertMsgReturn(enmVMState == VMSTATE_RESUMING,
1443	("%s\n", VMR3GetStateName(enmVMState)),
1444	VERR_VM_UNEXPECTED_UNSTABLE_STATE);
1445
1446	#if 0
1447	/*
1448	* All EMTs changes their state to started.
1449	*/
1450	VMCPU_SET_STATE(pVCpu, VMCPUSTATE_STARTED);
1451	#endif
1452
1453	/*
1454	* EMT(0) is last thru here and it will make the notification calls
1455	* and advance the state.
1456	*/
1457	if (pVCpu->idCpu == 0)
1458	{
1459	PDMR3Resume(pVM);
1460	vmR3SetState(pVM, VMSTATE_RUNNING, VMSTATE_RESUMING);
1461	pVM->vm.s.fTeleportedAndNotFullyResumedYet = false;
1462	}
1463
1464	return VINF_EM_RESUME;
1465	}
1466
1467
1468	/**
1469	* Resume VM execution.
1470	*
1471	* @returns VBox status code. When called on EMT, this will be a strict status
1472	* code that has to be propagated up the call stack.
1473	*
1474	* @param pVM The VM to resume.
1475	*
1476	* @thread Any thread.
1477	* @vmstate Suspended
1478	* @vmstateto Running
1479	*/
1480	VMMR3DECL(int) VMR3Resume(PUVM pUVM)
1481	{
1482	LogFlow(("VMR3Resume: pUVM=%p\n", pUVM));
1483	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
1484	PVM pVM = pUVM->pVM;
1485	VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
1486
1487	/*
1488	* Gather all the EMTs to make sure there are no races before
1489	* changing the VM state.
1490	*/
1491	int rc = VMMR3EmtRendezvous(pVM, VMMEMTRENDEZVOUS_FLAGS_TYPE_DESCENDING \| VMMEMTRENDEZVOUS_FLAGS_STOP_ON_ERROR,
1492	vmR3Resume, NULL);
1493	LogFlow(("VMR3Resume: returns %Rrc\n", rc));
1494	return rc;
1495	}
1496
1497
1498	/**
1499	* EMT rendezvous worker for VMR3Save and VMR3Teleport that suspends the VM
1500	* after the live step has been completed.
1501	*
1502	* @returns VERR_VM_INVALID_VM_STATE or VINF_EM_RESUME. (This is a strict
1503	* return code, see FNVMMEMTRENDEZVOUS.)
1504	*
1505	* @param pVM Pointer to the VM.
1506	* @param pVCpu Pointer to the VMCPU of the EMT.
1507	* @param pvUser The pfSuspended argument of vmR3SaveTeleport.
1508	*/
1509	static DECLCALLBACK(VBOXSTRICTRC) vmR3LiveDoSuspend(PVM pVM, PVMCPU pVCpu, void *pvUser)
1510	{
1511	LogFlow(("vmR3LiveDoSuspend: pVM=%p pVCpu=%p/#%u\n", pVM, pVCpu, pVCpu->idCpu));
1512	bool pfSuspended = (bool )pvUser;
1513
1514	/*
1515	* The first thread thru here tries to change the state. We shouldn't be
1516	* called again if this fails.
1517	*/
1518	if (pVCpu->idCpu == pVM->cCpus - 1U)
1519	{
1520	PUVM pUVM = pVM->pUVM;
1521	int rc;
1522
1523	RTCritSectEnter(&pUVM->vm.s.AtStateCritSect);
1524	VMSTATE enmVMState = pVM->enmVMState;
1525	switch (enmVMState)
1526	{
1527	case VMSTATE_RUNNING_LS:
1528	vmR3SetStateLocked(pVM, pUVM, VMSTATE_SUSPENDING_LS, VMSTATE_RUNNING_LS);
1529	rc = VINF_SUCCESS;
1530	break;
1531
1532	case VMSTATE_SUSPENDED_EXT_LS:
1533	case VMSTATE_SUSPENDED_LS: /* (via reset) */
1534	rc = VINF_SUCCESS;
1535	break;
1536
1537	case VMSTATE_DEBUGGING_LS:
1538	rc = VERR_TRY_AGAIN;
1539	break;
1540
1541	case VMSTATE_OFF_LS:
1542	vmR3SetStateLocked(pVM, pUVM, VMSTATE_OFF, VMSTATE_OFF_LS);
1543	rc = VERR_SSM_LIVE_POWERED_OFF;
1544	break;
1545
1546	case VMSTATE_FATAL_ERROR_LS:
1547	vmR3SetStateLocked(pVM, pUVM, VMSTATE_FATAL_ERROR, VMSTATE_FATAL_ERROR_LS);
1548	rc = VERR_SSM_LIVE_FATAL_ERROR;
1549	break;
1550
1551	case VMSTATE_GURU_MEDITATION_LS:
1552	vmR3SetStateLocked(pVM, pUVM, VMSTATE_GURU_MEDITATION, VMSTATE_GURU_MEDITATION_LS);
1553	rc = VERR_SSM_LIVE_GURU_MEDITATION;
1554	break;
1555
1556	case VMSTATE_POWERING_OFF_LS:
1557	case VMSTATE_SUSPENDING_EXT_LS:
1558	case VMSTATE_RESETTING_LS:
1559	default:
1560	AssertMsgFailed(("%s\n", VMR3GetStateName(enmVMState)));
1561	rc = VERR_VM_UNEXPECTED_VM_STATE;
1562	break;
1563	}
1564	RTCritSectLeave(&pUVM->vm.s.AtStateCritSect);
1565	if (RT_FAILURE(rc))
1566	{
1567	LogFlow(("vmR3LiveDoSuspend: returns %Rrc (state was %s)\n", rc, VMR3GetStateName(enmVMState)));
1568	return rc;
1569	}
1570	}
1571
1572	VMSTATE enmVMState = VMR3GetState(pVM);
1573	AssertMsgReturn(enmVMState == VMSTATE_SUSPENDING_LS,
1574	("%s\n", VMR3GetStateName(enmVMState)),
1575	VERR_VM_UNEXPECTED_UNSTABLE_STATE);
1576
1577	/*
1578	* Only EMT(0) have work to do since it's last thru here.
1579	*/
1580	if (pVCpu->idCpu == 0)
1581	{
1582	vmR3SuspendDoWork(pVM);
1583	int rc = vmR3TrySetState(pVM, "VMR3Suspend", 1,
1584	VMSTATE_SUSPENDED_LS, VMSTATE_SUSPENDING_LS);
1585	if (RT_FAILURE(rc))
1586	return VERR_VM_UNEXPECTED_UNSTABLE_STATE;
1587
1588	*pfSuspended = true;
1589	}
1590
1591	return VINF_EM_SUSPEND;
1592	}
1593
1594
1595	/**
1596	* EMT rendezvous worker that VMR3Save and VMR3Teleport uses to clean up a
1597	* SSMR3LiveDoStep1 failure.
1598	*
1599	* Doing this as a rendezvous operation avoids all annoying transition
1600	* states.
1601	*
1602	* @returns VERR_VM_INVALID_VM_STATE, VINF_SUCCESS or some specific VERR_SSM_*
1603	* status code. (This is a strict return code, see FNVMMEMTRENDEZVOUS.)
1604	*
1605	* @param pVM Pointer to the VM.
1606	* @param pVCpu Pointer to the VMCPU of the EMT.
1607	* @param pvUser The pfSuspended argument of vmR3SaveTeleport.
1608	*/
1609	static DECLCALLBACK(VBOXSTRICTRC) vmR3LiveDoStep1Cleanup(PVM pVM, PVMCPU pVCpu, void *pvUser)
1610	{
1611	LogFlow(("vmR3LiveDoStep1Cleanup: pVM=%p pVCpu=%p/#%u\n", pVM, pVCpu, pVCpu->idCpu));
1612	bool pfSuspended = (bool )pvUser;
1613	NOREF(pVCpu);
1614
1615	int rc = vmR3TrySetState(pVM, "vmR3LiveDoStep1Cleanup", 8,
1616	VMSTATE_OFF, VMSTATE_OFF_LS, /* 1 */
1617	VMSTATE_FATAL_ERROR, VMSTATE_FATAL_ERROR_LS, /* 2 */
1618	VMSTATE_GURU_MEDITATION, VMSTATE_GURU_MEDITATION_LS, /* 3 */
1619	VMSTATE_SUSPENDED, VMSTATE_SUSPENDED_LS, /* 4 */
1620	VMSTATE_SUSPENDED, VMSTATE_SAVING,
1621	VMSTATE_SUSPENDED, VMSTATE_SUSPENDED_EXT_LS,
1622	VMSTATE_RUNNING, VMSTATE_RUNNING_LS,
1623	VMSTATE_DEBUGGING, VMSTATE_DEBUGGING_LS);
1624	if (rc == 1)
1625	rc = VERR_SSM_LIVE_POWERED_OFF;
1626	else if (rc == 2)
1627	rc = VERR_SSM_LIVE_FATAL_ERROR;
1628	else if (rc == 3)
1629	rc = VERR_SSM_LIVE_GURU_MEDITATION;
1630	else if (rc == 4)
1631	{
1632	*pfSuspended = true;
1633	rc = VINF_SUCCESS;
1634	}
1635	else if (rc > 0)
1636	rc = VINF_SUCCESS;
1637	return rc;
1638	}
1639
1640
1641	/**
1642	* EMT(0) worker for VMR3Save and VMR3Teleport that completes the live save.
1643	*
1644	* @returns VBox status code.
1645	* @retval VINF_SSM_LIVE_SUSPENDED if VMR3Suspend was called.
1646	*
1647	* @param pVM Pointer to the VM.
1648	* @param pSSM The handle of saved state operation.
1649	*
1650	* @thread EMT(0)
1651	*/
1652	static DECLCALLBACK(int) vmR3LiveDoStep2(PVM pVM, PSSMHANDLE pSSM)
1653	{
1654	LogFlow(("vmR3LiveDoStep2: pVM=%p pSSM=%p\n", pVM, pSSM));
1655	VM_ASSERT_EMT0(pVM);
1656
1657	/*
1658	* Advance the state and mark if VMR3Suspend was called.
1659	*/
1660	int rc = VINF_SUCCESS;
1661	VMSTATE enmVMState = VMR3GetState(pVM);
1662	if (enmVMState == VMSTATE_SUSPENDED_LS)
1663	vmR3SetState(pVM, VMSTATE_SAVING, VMSTATE_SUSPENDED_LS);
1664	else
1665	{
1666	if (enmVMState != VMSTATE_SAVING)
1667	vmR3SetState(pVM, VMSTATE_SAVING, VMSTATE_SUSPENDED_EXT_LS);
1668	rc = VINF_SSM_LIVE_SUSPENDED;
1669	}
1670
1671	/*
1672	* Finish up and release the handle. Careful with the status codes.
1673	*/
1674	int rc2 = SSMR3LiveDoStep2(pSSM);
1675	if (rc == VINF_SUCCESS \|\| (RT_FAILURE(rc2) && RT_SUCCESS(rc)))
1676	rc = rc2;
1677
1678	rc2 = SSMR3LiveDone(pSSM);
1679	if (rc == VINF_SUCCESS \|\| (RT_FAILURE(rc2) && RT_SUCCESS(rc)))
1680	rc = rc2;
1681
1682	/*
1683	* Advance to the final state and return.
1684	*/
1685	vmR3SetState(pVM, VMSTATE_SUSPENDED, VMSTATE_SAVING);
1686	Assert(rc > VINF_EM_LAST \|\| rc < VINF_EM_FIRST);
1687	return rc;
1688	}
1689
1690
1691	/**
1692	* Worker for vmR3SaveTeleport that validates the state and calls SSMR3Save or
1693	* SSMR3LiveSave.
1694	*
1695	* @returns VBox status code.
1696	*
1697	* @param pVM Pointer to the VM.
1698	* @param cMsMaxDowntime The maximum downtime given as milliseconds.
1699	* @param pszFilename The name of the file. NULL if pStreamOps is used.
1700	* @param pStreamOps The stream methods. NULL if pszFilename is used.
1701	* @param pvStreamOpsUser The user argument to the stream methods.
1702	* @param enmAfter What to do afterwards.
1703	* @param pfnProgress Progress callback. Optional.
1704	* @param pvProgressUser User argument for the progress callback.
1705	* @param ppSSM Where to return the saved state handle in case of a
1706	* live snapshot scenario.
1707	* @param fSkipStateChanges Set if we're supposed to skip state changes (FTM delta case)
1708	*
1709	* @thread EMT
1710	*/
1711	static DECLCALLBACK(int) vmR3Save(PVM pVM, uint32_t cMsMaxDowntime, const char pszFilename, PCSSMSTRMOPS pStreamOps, void pvStreamOpsUser,
1712	SSMAFTER enmAfter, PFNVMPROGRESS pfnProgress, void pvProgressUser, PSSMHANDLE ppSSM,
1713	bool fSkipStateChanges)
1714	{
1715	int rc = VINF_SUCCESS;
1716
1717	LogFlow(("vmR3Save: pVM=%p cMsMaxDowntime=%u pszFilename=%p:{%s} pStreamOps=%p pvStreamOpsUser=%p enmAfter=%d pfnProgress=%p pvProgressUser=%p ppSSM=%p\n",
1718	pVM, cMsMaxDowntime, pszFilename, pszFilename, pStreamOps, pvStreamOpsUser, enmAfter, pfnProgress, pvProgressUser, ppSSM));
1719
1720	/*
1721	* Validate input.
1722	*/
1723	AssertPtrNull(pszFilename);
1724	AssertPtrNull(pStreamOps);
1725	AssertPtr(pVM);
1726	Assert( enmAfter == SSMAFTER_DESTROY
1727	\|\| enmAfter == SSMAFTER_CONTINUE
1728	\|\| enmAfter == SSMAFTER_TELEPORT);
1729	AssertPtr(ppSSM);
1730	*ppSSM = NULL;
1731
1732	/*
1733	* Change the state and perform/start the saving.
1734	*/
1735	if (!fSkipStateChanges)
1736	{
1737	rc = vmR3TrySetState(pVM, "VMR3Save", 2,
1738	VMSTATE_SAVING, VMSTATE_SUSPENDED,
1739	VMSTATE_RUNNING_LS, VMSTATE_RUNNING);
1740	}
1741	else
1742	{
1743	Assert(enmAfter != SSMAFTER_TELEPORT);
1744	rc = 1;
1745	}
1746
1747	if (rc == 1 && enmAfter != SSMAFTER_TELEPORT)
1748	{
1749	rc = SSMR3Save(pVM, pszFilename, pStreamOps, pvStreamOpsUser, enmAfter, pfnProgress, pvProgressUser);
1750	if (!fSkipStateChanges)
1751	vmR3SetState(pVM, VMSTATE_SUSPENDED, VMSTATE_SAVING);
1752	}
1753	else if (rc == 2 \|\| enmAfter == SSMAFTER_TELEPORT)
1754	{
1755	Assert(!fSkipStateChanges);
1756	if (enmAfter == SSMAFTER_TELEPORT)
1757	pVM->vm.s.fTeleportedAndNotFullyResumedYet = true;
1758	rc = SSMR3LiveSave(pVM, cMsMaxDowntime, pszFilename, pStreamOps, pvStreamOpsUser,
1759	enmAfter, pfnProgress, pvProgressUser, ppSSM);
1760	/* (We're not subject to cancellation just yet.) */
1761	}
1762	else
1763	Assert(RT_FAILURE(rc));
1764	return rc;
1765	}
1766
1767
1768	/**
1769	* Common worker for VMR3Save and VMR3Teleport.
1770	*
1771	* @returns VBox status code.
1772	*
1773	* @param pVM Pointer to the VM.
1774	* @param cMsMaxDowntime The maximum downtime given as milliseconds.
1775	* @param pszFilename The name of the file. NULL if pStreamOps is used.
1776	* @param pStreamOps The stream methods. NULL if pszFilename is used.
1777	* @param pvStreamOpsUser The user argument to the stream methods.
1778	* @param enmAfter What to do afterwards.
1779	* @param pfnProgress Progress callback. Optional.
1780	* @param pvProgressUser User argument for the progress callback.
1781	* @param pfSuspended Set if we suspended the VM.
1782	* @param fSkipStateChanges Set if we're supposed to skip state changes (FTM delta case)
1783	*
1784	* @thread Non-EMT
1785	*/
1786	static int vmR3SaveTeleport(PVM pVM, uint32_t cMsMaxDowntime,
1787	const char pszFilename, PCSSMSTRMOPS pStreamOps, void pvStreamOpsUser,
1788	SSMAFTER enmAfter, PFNVMPROGRESS pfnProgress, void pvProgressUser, bool pfSuspended,
1789	bool fSkipStateChanges)
1790	{
1791	/*
1792	* Request the operation in EMT(0).
1793	*/
1794	PSSMHANDLE pSSM;
1795	int rc = VMR3ReqCallWait(pVM, 0 /idDstCpu/,
1796	(PFNRT)vmR3Save, 10, pVM, cMsMaxDowntime, pszFilename, pStreamOps, pvStreamOpsUser,
1797	enmAfter, pfnProgress, pvProgressUser, &pSSM, fSkipStateChanges);
1798	if ( RT_SUCCESS(rc)
1799	&& pSSM)
1800	{
1801	Assert(!fSkipStateChanges);
1802
1803	/*
1804	* Live snapshot.
1805	*
1806	* The state handling here is kind of tricky, doing it on EMT(0) helps
1807	* a bit. See the VMSTATE diagram for details.
1808	*/
1809	rc = SSMR3LiveDoStep1(pSSM);
1810	if (RT_SUCCESS(rc))
1811	{
1812	if (VMR3GetState(pVM) != VMSTATE_SAVING)
1813	for (;;)
1814	{
1815	/* Try suspend the VM. */
1816	rc = VMMR3EmtRendezvous(pVM, VMMEMTRENDEZVOUS_FLAGS_TYPE_DESCENDING \| VMMEMTRENDEZVOUS_FLAGS_STOP_ON_ERROR,
1817	vmR3LiveDoSuspend, pfSuspended);
1818	if (rc != VERR_TRY_AGAIN)
1819	break;
1820
1821	/* Wait for the state to change. */
1822	RTThreadSleep(250); /** @todo Live Migration: fix this polling wait by some smart use of multiple release event semaphores.. */
1823	}
1824	if (RT_SUCCESS(rc))
1825	rc = VMR3ReqCallWait(pVM, 0 /idDstCpu/, (PFNRT)vmR3LiveDoStep2, 2, pVM, pSSM);
1826	else
1827	{
1828	int rc2 = VMR3ReqCallWait(pVM, 0 /idDstCpu/, (PFNRT)SSMR3LiveDone, 1, pSSM);
1829	AssertMsg(rc2 == rc, ("%Rrc != %Rrc\n", rc2, rc)); NOREF(rc2);
1830	}
1831	}
1832	else
1833	{
1834	int rc2 = VMR3ReqCallWait(pVM, 0 /idDstCpu/, (PFNRT)SSMR3LiveDone, 1, pSSM);
1835	AssertMsg(rc2 == rc, ("%Rrc != %Rrc\n", rc2, rc));
1836
1837	rc2 = VMMR3EmtRendezvous(pVM, VMMEMTRENDEZVOUS_FLAGS_TYPE_ONCE, vmR3LiveDoStep1Cleanup, pfSuspended);
1838	if (RT_FAILURE(rc2) && rc == VERR_SSM_CANCELLED)
1839	rc = rc2;
1840	}
1841	}
1842
1843	return rc;
1844	}
1845
1846
1847	/**
1848	* Save current VM state.
1849	*
1850	* Can be used for both saving the state and creating snapshots.
1851	*
1852	* When called for a VM in the Running state, the saved state is created live
1853	* and the VM is only suspended when the final part of the saving is preformed.
1854	* The VM state will not be restored to Running in this case and it's up to the
1855	* caller to call VMR3Resume if this is desirable. (The rational is that the
1856	* caller probably wish to reconfigure the disks before resuming the VM.)
1857	*
1858	* @returns VBox status code.
1859	*
1860	* @param pUVM The VM which state should be saved.
1861	* @param pszFilename The name of the save state file.
1862	* @param pStreamOps The stream methods.
1863	* @param pvStreamOpsUser The user argument to the stream methods.
1864	* @param fContinueAfterwards Whether continue execution afterwards or not.
1865	* When in doubt, set this to true.
1866	* @param pfnProgress Progress callback. Optional.
1867	* @param pvUser User argument for the progress callback.
1868	* @param pfSuspended Set if we suspended the VM.
1869	*
1870	* @thread Non-EMT.
1871	* @vmstate Suspended or Running
1872	* @vmstateto Saving+Suspended or
1873	* RunningLS+SuspendingLS+SuspendedLS+Saving+Suspended.
1874	*/
1875	VMMR3DECL(int) VMR3Save(PUVM pUVM, const char pszFilename, bool fContinueAfterwards, PFNVMPROGRESS pfnProgress, void pvUser, bool *pfSuspended)
1876	{
1877	LogFlow(("VMR3Save: pUVM=%p pszFilename=%p:{%s} fContinueAfterwards=%RTbool pfnProgress=%p pvUser=%p pfSuspended=%p\n",
1878	pUVM, pszFilename, pszFilename, fContinueAfterwards, pfnProgress, pvUser, pfSuspended));
1879
1880	/*
1881	* Validate input.
1882	*/
1883	AssertPtr(pfSuspended);
1884	*pfSuspended = false;
1885	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
1886	PVM pVM = pUVM->pVM;
1887	VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
1888	VM_ASSERT_OTHER_THREAD(pVM);
1889	AssertReturn(VALID_PTR(pszFilename), VERR_INVALID_POINTER);
1890	AssertReturn(*pszFilename, VERR_INVALID_PARAMETER);
1891	AssertPtrNullReturn(pfnProgress, VERR_INVALID_POINTER);
1892
1893	/*
1894	* Join paths with VMR3Teleport.
1895	*/
1896	SSMAFTER enmAfter = fContinueAfterwards ? SSMAFTER_CONTINUE : SSMAFTER_DESTROY;
1897	int rc = vmR3SaveTeleport(pVM, 250 /cMsMaxDowntime/,
1898	pszFilename, NULL /* pStreamOps /, NULL / pvStreamOpsUser */,
1899	enmAfter, pfnProgress, pvUser, pfSuspended,
1900	false /* fSkipStateChanges */);
1901	LogFlow(("VMR3Save: returns %Rrc (pfSuspended=%RTbool)\n", rc, pfSuspended));
1902	return rc;
1903	}
1904
1905	/**
1906	* Save current VM state (used by FTM)
1907	*
1908	*
1909	* @returns VBox status code.
1910	*
1911	* @param pVM The VM which state should be saved.
1912	* @param pStreamOps The stream methods.
1913	* @param pvStreamOpsUser The user argument to the stream methods.
1914	* @param pfSuspended Set if we suspended the VM.
1915	* @param fSkipStateChanges Set if we're supposed to skip state changes (FTM delta case)
1916	*
1917	* @thread Any
1918	* @vmstate Suspended or Running
1919	* @vmstateto Saving+Suspended or
1920	* RunningLS+SuspendingLS+SuspendedLS+Saving+Suspended.
1921	*/
1922	VMMR3_INT_DECL(int) VMR3SaveFT(PUVM pUVM, PCSSMSTRMOPS pStreamOps, void pvStreamOpsUser, bool pfSuspended, bool fSkipStateChanges)
1923	{
1924	LogFlow(("VMR3SaveFT: pUVM=%p pStreamOps=%p pvSteamOpsUser=%p pfSuspended=%p\n",
1925	pUVM, pStreamOps, pvStreamOpsUser, pfSuspended));
1926
1927	/*
1928	* Validate input.
1929	*/
1930	AssertPtr(pfSuspended);
1931	*pfSuspended = false;
1932	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
1933	PVM pVM = pUVM->pVM;
1934	VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
1935	AssertReturn(pStreamOps, VERR_INVALID_PARAMETER);
1936
1937	/*
1938	* Join paths with VMR3Teleport.
1939	*/
1940	int rc = vmR3SaveTeleport(pVM, 250 /cMsMaxDowntime/,
1941	NULL, pStreamOps, pvStreamOpsUser,
1942	SSMAFTER_CONTINUE, NULL, NULL, pfSuspended,
1943	fSkipStateChanges);
1944	LogFlow(("VMR3SaveFT: returns %Rrc (pfSuspended=%RTbool)\n", rc, pfSuspended));
1945	return rc;
1946	}
1947
1948
1949	/**
1950	* Teleport the VM (aka live migration).
1951	*
1952	* @returns VBox status code.
1953	*
1954	* @param pUVM The VM which state should be saved.
1955	* @param cMsMaxDowntime The maximum downtime given as milliseconds.
1956	* @param pStreamOps The stream methods.
1957	* @param pvStreamOpsUser The user argument to the stream methods.
1958	* @param pfnProgress Progress callback. Optional.
1959	* @param pvProgressUser User argument for the progress callback.
1960	* @param pfSuspended Set if we suspended the VM.
1961	*
1962	* @thread Non-EMT.
1963	* @vmstate Suspended or Running
1964	* @vmstateto Saving+Suspended or
1965	* RunningLS+SuspendingLS+SuspendedLS+Saving+Suspended.
1966	*/
1967	VMMR3DECL(int) VMR3Teleport(PUVM pUVM, uint32_t cMsMaxDowntime, PCSSMSTRMOPS pStreamOps, void *pvStreamOpsUser,
1968	PFNVMPROGRESS pfnProgress, void pvProgressUser, bool pfSuspended)
1969	{
1970	LogFlow(("VMR3Teleport: pUVM=%p cMsMaxDowntime=%u pStreamOps=%p pvStreamOps=%p pfnProgress=%p pvProgressUser=%p\n",
1971	pUVM, cMsMaxDowntime, pStreamOps, pvStreamOpsUser, pfnProgress, pvProgressUser));
1972
1973	/*
1974	* Validate input.
1975	*/
1976	AssertPtr(pfSuspended);
1977	*pfSuspended = false;
1978	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
1979	PVM pVM = pUVM->pVM;
1980	VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
1981	VM_ASSERT_OTHER_THREAD(pVM);
1982	AssertPtrReturn(pStreamOps, VERR_INVALID_POINTER);
1983	AssertPtrNullReturn(pfnProgress, VERR_INVALID_POINTER);
1984
1985	/*
1986	* Join paths with VMR3Save.
1987	*/
1988	int rc = vmR3SaveTeleport(pVM, cMsMaxDowntime,
1989	NULL /pszFilename/, pStreamOps, pvStreamOpsUser,
1990	SSMAFTER_TELEPORT, pfnProgress, pvProgressUser, pfSuspended,
1991	false /* fSkipStateChanges */);
1992	LogFlow(("VMR3Teleport: returns %Rrc (pfSuspended=%RTbool)\n", rc, pfSuspended));
1993	return rc;
1994	}
1995
1996
1997
1998	/**
1999	* EMT(0) worker for VMR3LoadFromFile and VMR3LoadFromStream.
2000	*
2001	* @returns VBox status code.
2002	*
2003	* @param pUVM Pointer to the VM.
2004	* @param pszFilename The name of the file. NULL if pStreamOps is used.
2005	* @param pStreamOps The stream methods. NULL if pszFilename is used.
2006	* @param pvStreamOpsUser The user argument to the stream methods.
2007	* @param pfnProgress Progress callback. Optional.
2008	* @param pvUser User argument for the progress callback.
2009	* @param fTeleporting Indicates whether we're teleporting or not.
2010	* @param fSkipStateChanges Set if we're supposed to skip state changes (FTM delta case)
2011	*
2012	* @thread EMT.
2013	*/
2014	static DECLCALLBACK(int) vmR3Load(PUVM pUVM, const char pszFilename, PCSSMSTRMOPS pStreamOps, void pvStreamOpsUser,
2015	PFNVMPROGRESS pfnProgress, void *pvProgressUser, bool fTeleporting,
2016	bool fSkipStateChanges)
2017	{
2018	int rc = VINF_SUCCESS;
2019
2020	LogFlow(("vmR3Load: pUVM=%p pszFilename=%p:{%s} pStreamOps=%p pvStreamOpsUser=%p pfnProgress=%p pvProgressUser=%p fTeleporting=%RTbool\n",
2021	pUVM, pszFilename, pszFilename, pStreamOps, pvStreamOpsUser, pfnProgress, pvProgressUser, fTeleporting));
2022
2023	/*
2024	* Validate input (paranoia).
2025	*/
2026	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
2027	PVM pVM = pUVM->pVM;
2028	VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
2029	AssertPtrNull(pszFilename);
2030	AssertPtrNull(pStreamOps);
2031	AssertPtrNull(pfnProgress);
2032
2033	if (!fSkipStateChanges)
2034	{
2035	/*
2036	* Change the state and perform the load.
2037	*
2038	* Always perform a relocation round afterwards to make sure hypervisor
2039	* selectors and such are correct.
2040	*/
2041	rc = vmR3TrySetState(pVM, "VMR3Load", 2,
2042	VMSTATE_LOADING, VMSTATE_CREATED,
2043	VMSTATE_LOADING, VMSTATE_SUSPENDED);
2044	if (RT_FAILURE(rc))
2045	return rc;
2046	}
2047	pVM->vm.s.fTeleportedAndNotFullyResumedYet = fTeleporting;
2048
2049	uint32_t cErrorsPriorToSave = VMR3GetErrorCount(pUVM);
2050	rc = SSMR3Load(pVM, pszFilename, pStreamOps, pvStreamOpsUser, SSMAFTER_RESUME, pfnProgress, pvProgressUser);
2051	if (RT_SUCCESS(rc))
2052	{
2053	VMR3Relocate(pVM, 0 /offDelta/);
2054	if (!fSkipStateChanges)
2055	vmR3SetState(pVM, VMSTATE_SUSPENDED, VMSTATE_LOADING);
2056	}
2057	else
2058	{
2059	pVM->vm.s.fTeleportedAndNotFullyResumedYet = false;
2060	if (!fSkipStateChanges)
2061	vmR3SetState(pVM, VMSTATE_LOAD_FAILURE, VMSTATE_LOADING);
2062
2063	if (cErrorsPriorToSave == VMR3GetErrorCount(pUVM))
2064	rc = VMSetError(pVM, rc, RT_SRC_POS,
2065	N_("Unable to restore the virtual machine's saved state from '%s'. "
2066	"It may be damaged or from an older version of VirtualBox. "
2067	"Please discard the saved state before starting the virtual machine"),
2068	pszFilename);
2069	}
2070
2071	return rc;
2072	}
2073
2074
2075	/**
2076	* Loads a VM state into a newly created VM or a one that is suspended.
2077	*
2078	* To restore a saved state on VM startup, call this function and then resume
2079	* the VM instead of powering it on.
2080	*
2081	* @returns VBox status code.
2082	*
2083	* @param pVM Pointer to the VM.
2084	* @param pszFilename The name of the save state file.
2085	* @param pfnProgress Progress callback. Optional.
2086	* @param pvUser User argument for the progress callback.
2087	*
2088	* @thread Any thread.
2089	* @vmstate Created, Suspended
2090	* @vmstateto Loading+Suspended
2091	*/
2092	VMMR3DECL(int) VMR3LoadFromFile(PUVM pUVM, const char pszFilename, PFNVMPROGRESS pfnProgress, void pvUser)
2093	{
2094	LogFlow(("VMR3LoadFromFile: pUVM=%p pszFilename=%p:{%s} pfnProgress=%p pvUser=%p\n",
2095	pUVM, pszFilename, pszFilename, pfnProgress, pvUser));
2096
2097	/*
2098	* Validate input.
2099	*/
2100	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
2101	AssertPtrReturn(pszFilename, VERR_INVALID_POINTER);
2102
2103	/*
2104	* Forward the request to EMT(0). No need to setup a rendezvous here
2105	* since there is no execution taking place when this call is allowed.
2106	*/
2107	int rc = VMR3ReqCallWaitU(pUVM, 0 /idDstCpu/, (PFNRT)vmR3Load, 8,
2108	pUVM, pszFilename, (uintptr_t)NULL /pStreamOps/, (uintptr_t)NULL /pvStreamOpsUser/, pfnProgress, pvUser,
2109	false /fTeleporting/, false /* fSkipStateChanges */);
2110	LogFlow(("VMR3LoadFromFile: returns %Rrc\n", rc));
2111	return rc;
2112	}
2113
2114
2115	/**
2116	* VMR3LoadFromFile for arbitrary file streams.
2117	*
2118	* @returns VBox status code.
2119	*
2120	* @param pUVM Pointer to the VM.
2121	* @param pStreamOps The stream methods.
2122	* @param pvStreamOpsUser The user argument to the stream methods.
2123	* @param pfnProgress Progress callback. Optional.
2124	* @param pvProgressUser User argument for the progress callback.
2125	*
2126	* @thread Any thread.
2127	* @vmstate Created, Suspended
2128	* @vmstateto Loading+Suspended
2129	*/
2130	VMMR3DECL(int) VMR3LoadFromStream(PUVM pUVM, PCSSMSTRMOPS pStreamOps, void *pvStreamOpsUser,
2131	PFNVMPROGRESS pfnProgress, void *pvProgressUser)
2132	{
2133	LogFlow(("VMR3LoadFromStream: pUVM=%p pStreamOps=%p pvStreamOpsUser=%p pfnProgress=%p pvProgressUser=%p\n",
2134	pUVM, pStreamOps, pvStreamOpsUser, pfnProgress, pvProgressUser));
2135
2136	/*
2137	* Validate input.
2138	*/
2139	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
2140	AssertPtrReturn(pStreamOps, VERR_INVALID_POINTER);
2141
2142	/*
2143	* Forward the request to EMT(0). No need to setup a rendezvous here
2144	* since there is no execution taking place when this call is allowed.
2145	*/
2146	int rc = VMR3ReqCallWaitU(pUVM, 0 /idDstCpu/, (PFNRT)vmR3Load, 8,
2147	pUVM, (uintptr_t)NULL /pszFilename/, pStreamOps, pvStreamOpsUser, pfnProgress, pvProgressUser,
2148	true /fTeleporting/, false /* fSkipStateChanges */);
2149	LogFlow(("VMR3LoadFromStream: returns %Rrc\n", rc));
2150	return rc;
2151	}
2152
2153
2154	/**
2155	* Special version for the FT component, it skips state changes.
2156	*
2157	* @returns VBox status code.
2158	*
2159	* @param pUVM The VM handle.
2160	* @param pStreamOps The stream methods.
2161	* @param pvStreamOpsUser The user argument to the stream methods.
2162	* @param pfnProgress Progress callback. Optional.
2163	* @param pvProgressUser User argument for the progress callback.
2164	*
2165	* @thread Any thread.
2166	* @vmstate Created, Suspended
2167	* @vmstateto Loading+Suspended
2168	*/
2169	VMMR3_INT_DECL(int) VMR3LoadFromStreamFT(PUVM pUVM, PCSSMSTRMOPS pStreamOps, void *pvStreamOpsUser)
2170	{
2171	LogFlow(("VMR3LoadFromStreamFT: pUVM=%p pStreamOps=%p pvStreamOpsUser=%p\n", pUVM, pStreamOps, pvStreamOpsUser));
2172
2173	/*
2174	* Validate input.
2175	*/
2176	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
2177	AssertPtrReturn(pStreamOps, VERR_INVALID_POINTER);
2178
2179	/*
2180	* Forward the request to EMT(0). No need to setup a rendezvous here
2181	* since there is no execution taking place when this call is allowed.
2182	*/
2183	int rc = VMR3ReqCallWaitU(pUVM, 0 /idDstCpu/, (PFNRT)vmR3Load, 8,
2184	pUVM, (uintptr_t)NULL /pszFilename/, pStreamOps, pvStreamOpsUser, NULL, NULL,
2185	true /fTeleporting/, true /* fSkipStateChanges */);
2186	LogFlow(("VMR3LoadFromStream: returns %Rrc\n", rc));
2187	return rc;
2188	}
2189
2190	/**
2191	* EMT rendezvous worker for VMR3PowerOff.
2192	*
2193	* @returns VERR_VM_INVALID_VM_STATE or VINF_EM_OFF. (This is a strict
2194	* return code, see FNVMMEMTRENDEZVOUS.)
2195	*
2196	* @param pVM Pointer to the VM.
2197	* @param pVCpu Pointer to the VMCPU of the EMT.
2198	* @param pvUser Ignored.
2199	*/
2200	static DECLCALLBACK(VBOXSTRICTRC) vmR3PowerOff(PVM pVM, PVMCPU pVCpu, void *pvUser)
2201	{
2202	LogFlow(("vmR3PowerOff: pVM=%p pVCpu=%p/#%u\n", pVM, pVCpu, pVCpu->idCpu));
2203	Assert(!pvUser); NOREF(pvUser);
2204
2205	/*
2206	* The first EMT thru here will change the state to PoweringOff.
2207	*/
2208	if (pVCpu->idCpu == pVM->cCpus - 1)
2209	{
2210	int rc = vmR3TrySetState(pVM, "VMR3PowerOff", 11,
2211	VMSTATE_POWERING_OFF, VMSTATE_RUNNING, /* 1 */
2212	VMSTATE_POWERING_OFF, VMSTATE_SUSPENDED, /* 2 */
2213	VMSTATE_POWERING_OFF, VMSTATE_DEBUGGING, /* 3 */
2214	VMSTATE_POWERING_OFF, VMSTATE_LOAD_FAILURE, /* 4 */
2215	VMSTATE_POWERING_OFF, VMSTATE_GURU_MEDITATION, /* 5 */
2216	VMSTATE_POWERING_OFF, VMSTATE_FATAL_ERROR, /* 6 */
2217	VMSTATE_POWERING_OFF, VMSTATE_CREATED, /* 7 / /* @todo update the diagram! */
2218	VMSTATE_POWERING_OFF_LS, VMSTATE_RUNNING_LS, /* 8 */
2219	VMSTATE_POWERING_OFF_LS, VMSTATE_DEBUGGING_LS, /* 9 */
2220	VMSTATE_POWERING_OFF_LS, VMSTATE_GURU_MEDITATION_LS,/* 10 */
2221	VMSTATE_POWERING_OFF_LS, VMSTATE_FATAL_ERROR_LS); /* 11 */
2222	if (RT_FAILURE(rc))
2223	return rc;
2224	if (rc >= 7)
2225	SSMR3Cancel(pVM->pUVM);
2226	}
2227
2228	/*
2229	* Check the state.
2230	*/
2231	VMSTATE enmVMState = VMR3GetState(pVM);
2232	AssertMsgReturn( enmVMState == VMSTATE_POWERING_OFF
2233	\|\| enmVMState == VMSTATE_POWERING_OFF_LS,
2234	("%s\n", VMR3GetStateName(enmVMState)),
2235	VERR_VM_INVALID_VM_STATE);
2236
2237	/*
2238	* EMT(0) does the actual power off work here after all the other EMTs
2239	* have been thru and entered the STOPPED state.
2240	*/
2241	VMCPU_SET_STATE(pVCpu, VMCPUSTATE_STOPPED);
2242	if (pVCpu->idCpu == 0)
2243	{
2244	/*
2245	* For debugging purposes, we will log a summary of the guest state at this point.
2246	*/
2247	if (enmVMState != VMSTATE_GURU_MEDITATION)
2248	{
2249	/** @todo SMP support? */
2250	/** @todo make the state dumping at VMR3PowerOff optional. */
2251	bool fOldBuffered = RTLogRelSetBuffering(true /fBuffered/);
2252	RTLogRelPrintf("**************** Guest state at power off ****************\n");
2253	DBGFR3Info(pVM->pUVM, "cpumguest", "verbose", DBGFR3InfoLogRelHlp());
2254	RTLogRelPrintf("***\n");
2255	DBGFR3Info(pVM->pUVM, "mode", NULL, DBGFR3InfoLogRelHlp());
2256	RTLogRelPrintf("***\n");
2257	DBGFR3Info(pVM->pUVM, "activetimers", NULL, DBGFR3InfoLogRelHlp());
2258	RTLogRelPrintf("***\n");
2259	DBGFR3Info(pVM->pUVM, "gdt", NULL, DBGFR3InfoLogRelHlp());
2260	/** @todo dump guest call stack. */
2261	#if 1 // "temporary" while debugging #1589
2262	RTLogRelPrintf("***\n");
2263	uint32_t esp = CPUMGetGuestESP(pVCpu);
2264	if ( CPUMGetGuestSS(pVCpu) == 0
2265	&& esp < _64K)
2266	{
2267	uint8_t abBuf[PAGE_SIZE];
2268	RTLogRelPrintf("***\n"
2269	"ss:sp=0000:%04x ", esp);
2270	uint32_t Start = esp & ~(uint32_t)63;
2271	int rc = PGMPhysSimpleReadGCPhys(pVM, abBuf, Start, 0x100);
2272	if (RT_SUCCESS(rc))
2273	RTLogRelPrintf("0000:%04x TO 0000:%04x:\n"
2274	"%.*Rhxd\n",
2275	Start, Start + 0x100 - 1,
2276	0x100, abBuf);
2277	else
2278	RTLogRelPrintf("rc=%Rrc\n", rc);
2279
2280	/* grub ... */
2281	if (esp < 0x2000 && esp > 0x1fc0)
2282	{
2283	rc = PGMPhysSimpleReadGCPhys(pVM, abBuf, 0x8000, 0x800);
2284	if (RT_SUCCESS(rc))
2285	RTLogRelPrintf("0000:8000 TO 0000:87ff:\n"
2286	"%.*Rhxd\n",
2287	0x800, abBuf);
2288	}
2289	/* microsoft cdrom hang ... */
2290	if (true)
2291	{
2292	rc = PGMPhysSimpleReadGCPhys(pVM, abBuf, 0x8000, 0x200);
2293	if (RT_SUCCESS(rc))
2294	RTLogRelPrintf("2000:0000 TO 2000:01ff:\n"
2295	"%.*Rhxd\n",
2296	0x200, abBuf);
2297	}
2298	}
2299	#endif
2300	RTLogRelSetBuffering(fOldBuffered);
2301	RTLogRelPrintf("************ End of Guest state at power off *************\n");
2302	}
2303
2304	/*
2305	* Perform the power off notifications and advance the state to
2306	* Off or OffLS.
2307	*/
2308	PDMR3PowerOff(pVM);
2309	DBGFR3PowerOff(pVM);
2310
2311	PUVM pUVM = pVM->pUVM;
2312	RTCritSectEnter(&pUVM->vm.s.AtStateCritSect);
2313	enmVMState = pVM->enmVMState;
2314	if (enmVMState == VMSTATE_POWERING_OFF_LS)
2315	vmR3SetStateLocked(pVM, pUVM, VMSTATE_OFF_LS, VMSTATE_POWERING_OFF_LS);
2316	else
2317	vmR3SetStateLocked(pVM, pUVM, VMSTATE_OFF, VMSTATE_POWERING_OFF);
2318	RTCritSectLeave(&pUVM->vm.s.AtStateCritSect);
2319	}
2320	return VINF_EM_OFF;
2321	}
2322
2323
2324	/**
2325	* Power off the VM.
2326	*
2327	* @returns VBox status code. When called on EMT, this will be a strict status
2328	* code that has to be propagated up the call stack.
2329	*
2330	* @param pUVM The handle of the VM to be powered off.
2331	*
2332	* @thread Any thread.
2333	* @vmstate Suspended, Running, Guru Meditation, Load Failure
2334	* @vmstateto Off or OffLS
2335	*/
2336	VMMR3DECL(int) VMR3PowerOff(PUVM pUVM)
2337	{
2338	LogFlow(("VMR3PowerOff: pUVM=%p\n", pUVM));
2339	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
2340	PVM pVM = pUVM->pVM;
2341	VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
2342
2343	/*
2344	* Gather all the EMTs to make sure there are no races before
2345	* changing the VM state.
2346	*/
2347	int rc = VMMR3EmtRendezvous(pVM, VMMEMTRENDEZVOUS_FLAGS_TYPE_DESCENDING \| VMMEMTRENDEZVOUS_FLAGS_STOP_ON_ERROR,
2348	vmR3PowerOff, NULL);
2349	LogFlow(("VMR3PowerOff: returns %Rrc\n", rc));
2350	return rc;
2351	}
2352
2353
2354	/**
2355	* Destroys the VM.
2356	*
2357	* The VM must be powered off (or never really powered on) to call this
2358	* function. The VM handle is destroyed and can no longer be used up successful
2359	* return.
2360	*
2361	* @returns VBox status code.
2362	*
2363	* @param pVM The handle of the VM which should be destroyed.
2364	*
2365	* @thread Any none emulation thread.
2366	* @vmstate Off, Created
2367	* @vmstateto N/A
2368	*/
2369	VMMR3DECL(int) VMR3Destroy(PUVM pUVM)
2370	{
2371	LogFlow(("VMR3Destroy: pUVM=%p\n", pUVM));
2372
2373	/*
2374	* Validate input.
2375	*/
2376	if (!pUVM)
2377	return VERR_INVALID_VM_HANDLE;
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	AssertLogRelReturn(!VM_IS_EMT(pVM), VERR_VM_THREAD_IS_EMT);
2382
2383	/*
2384	* Change VM state to destroying and aall vmR3Destroy on each of the EMTs
2385	* ending with EMT(0) doing the bulk of the cleanup.
2386	*/
2387	int rc = vmR3TrySetState(pVM, "VMR3Destroy", 1, VMSTATE_DESTROYING, VMSTATE_OFF);
2388	if (RT_FAILURE(rc))
2389	return rc;
2390
2391	rc = VMR3ReqCallWait(pVM, VMCPUID_ALL_REVERSE, (PFNRT)vmR3Destroy, 1, pVM);
2392	AssertLogRelRC(rc);
2393
2394	/*
2395	* Wait for EMTs to quit and destroy the UVM.
2396	*/
2397	vmR3DestroyUVM(pUVM, 30000);
2398
2399	LogFlow(("VMR3Destroy: returns VINF_SUCCESS\n"));
2400	return VINF_SUCCESS;
2401	}
2402
2403
2404	/**
2405	* Internal destruction worker.
2406	*
2407	* This is either called from VMR3Destroy via VMR3ReqCallU or from
2408	* vmR3EmulationThreadWithId when EMT(0) terminates after having called
2409	* VMR3Destroy().
2410	*
2411	* When called on EMT(0), it will performed the great bulk of the destruction.
2412	* When called on the other EMTs, they will do nothing and the whole purpose is
2413	* to return VINF_EM_TERMINATE so they break out of their run loops.
2414	*
2415	* @returns VINF_EM_TERMINATE.
2416	* @param pVM Pointer to the VM.
2417	*/
2418	DECLCALLBACK(int) vmR3Destroy(PVM pVM)
2419	{
2420	PUVM pUVM = pVM->pUVM;
2421	PVMCPU pVCpu = VMMGetCpu(pVM);
2422	Assert(pVCpu);
2423	LogFlow(("vmR3Destroy: pVM=%p pUVM=%p pVCpu=%p idCpu=%u\n", pVM, pUVM, pVCpu, pVCpu->idCpu));
2424
2425	/*
2426	* Only VCPU 0 does the full cleanup (last).
2427	*/
2428	if (pVCpu->idCpu == 0)
2429	{
2430	/*
2431	* Dump statistics to the log.
2432	*/
2433	#if defined(VBOX_WITH_STATISTICS) \|\| defined(LOG_ENABLED)
2434	RTLogFlags(NULL, "nodisabled nobuffered");
2435	#endif
2436	#ifdef VBOX_WITH_STATISTICS
2437	STAMR3Dump(pUVM, "*");
2438	#else
2439	LogRel(("*********************** Statistics ***********************\n"));
2440	STAMR3DumpToReleaseLog(pUVM, "*");
2441	LogRel(("******************* End of statistics ********************\n"));
2442	#endif
2443
2444	/*
2445	* Destroy the VM components.
2446	*/
2447	int rc = TMR3Term(pVM);
2448	AssertRC(rc);
2449	#ifdef VBOX_WITH_DEBUGGER
2450	rc = DBGCTcpTerminate(pUVM, pUVM->vm.s.pvDBGC);
2451	pUVM->vm.s.pvDBGC = NULL;
2452	#endif
2453	AssertRC(rc);
2454	rc = FTMR3Term(pVM);
2455	AssertRC(rc);
2456	rc = PDMR3Term(pVM);
2457	AssertRC(rc);
2458	rc = DBGFR3Term(pVM);
2459	AssertRC(rc);
2460	rc = IEMR3Term(pVM);
2461	AssertRC(rc);
2462	rc = EMR3Term(pVM);
2463	AssertRC(rc);
2464	rc = IOMR3Term(pVM);
2465	AssertRC(rc);
2466	#ifdef VBOX_WITH_RAW_MODE
2467	rc = CSAMR3Term(pVM);
2468	AssertRC(rc);
2469	rc = PATMR3Term(pVM);
2470	AssertRC(rc);
2471	#endif
2472	rc = TRPMR3Term(pVM);
2473	AssertRC(rc);
2474	rc = SELMR3Term(pVM);
2475	AssertRC(rc);
2476	#ifdef VBOX_WITH_REM
2477	rc = REMR3Term(pVM);
2478	AssertRC(rc);
2479	#endif
2480	rc = HMR3Term(pVM);
2481	AssertRC(rc);
2482	rc = PGMR3Term(pVM);
2483	AssertRC(rc);
2484	rc = VMMR3Term(pVM); /* Terminates the ring-0 code! */
2485	AssertRC(rc);
2486	rc = CPUMR3Term(pVM);
2487	AssertRC(rc);
2488	SSMR3Term(pVM);
2489	rc = PDMR3CritSectBothTerm(pVM);
2490	AssertRC(rc);
2491	rc = MMR3Term(pVM);
2492	AssertRC(rc);
2493
2494	/*
2495	* We're done, tell the other EMTs to quit.
2496	*/
2497	ASMAtomicUoWriteBool(&pUVM->vm.s.fTerminateEMT, true);
2498	ASMAtomicWriteU32(&pVM->fGlobalForcedActions, VM_FF_CHECK_VM_STATE); /* Can't hurt... */
2499	LogFlow(("vmR3Destroy: returning %Rrc\n", VINF_EM_TERMINATE));
2500	}
2501	return VINF_EM_TERMINATE;
2502	}
2503
2504
2505	/**
2506	* Destroys the UVM portion.
2507	*
2508	* This is called as the final step in the VM destruction or as the cleanup
2509	* in case of a creation failure.
2510	*
2511	* @param pVM Pointer to the VM.
2512	* @param cMilliesEMTWait The number of milliseconds to wait for the emulation
2513	* threads.
2514	*/
2515	static void vmR3DestroyUVM(PUVM pUVM, uint32_t cMilliesEMTWait)
2516	{
2517	/*
2518	* Signal termination of each the emulation threads and
2519	* wait for them to complete.
2520	*/
2521	/* Signal them. */
2522	ASMAtomicUoWriteBool(&pUVM->vm.s.fTerminateEMT, true);
2523	if (pUVM->pVM)
2524	VM_FF_SET(pUVM->pVM, VM_FF_CHECK_VM_STATE); /* Can't hurt... */
2525	for (VMCPUID i = 0; i < pUVM->cCpus; i++)
2526	{
2527	VMR3NotifyGlobalFFU(pUVM, VMNOTIFYFF_FLAGS_DONE_REM);
2528	RTSemEventSignal(pUVM->aCpus[i].vm.s.EventSemWait);
2529	}
2530
2531	/* Wait for them. */
2532	uint64_t NanoTS = RTTimeNanoTS();
2533	RTTHREAD hSelf = RTThreadSelf();
2534	ASMAtomicUoWriteBool(&pUVM->vm.s.fTerminateEMT, true);
2535	for (VMCPUID i = 0; i < pUVM->cCpus; i++)
2536	{
2537	RTTHREAD hThread = pUVM->aCpus[i].vm.s.ThreadEMT;
2538	if ( hThread != NIL_RTTHREAD
2539	&& hThread != hSelf)
2540	{
2541	uint64_t cMilliesElapsed = (RTTimeNanoTS() - NanoTS) / 1000000;
2542	int rc2 = RTThreadWait(hThread,
2543	cMilliesElapsed < cMilliesEMTWait
2544	? RT_MAX(cMilliesEMTWait - cMilliesElapsed, 2000)
2545	: 2000,
2546	NULL);
2547	if (rc2 == VERR_TIMEOUT) /* avoid the assertion when debugging. */
2548	rc2 = RTThreadWait(hThread, 1000, NULL);
2549	AssertLogRelMsgRC(rc2, ("i=%u rc=%Rrc\n", i, rc2));
2550	if (RT_SUCCESS(rc2))
2551	pUVM->aCpus[0].vm.s.ThreadEMT = NIL_RTTHREAD;
2552	}
2553	}
2554
2555	/* Cleanup the semaphores. */
2556	for (VMCPUID i = 0; i < pUVM->cCpus; i++)
2557	{
2558	RTSemEventDestroy(pUVM->aCpus[i].vm.s.EventSemWait);
2559	pUVM->aCpus[i].vm.s.EventSemWait = NIL_RTSEMEVENT;
2560	}
2561
2562	/*
2563	* Free the event semaphores associated with the request packets.
2564	*/
2565	unsigned cReqs = 0;
2566	for (unsigned i = 0; i < RT_ELEMENTS(pUVM->vm.s.apReqFree); i++)
2567	{
2568	PVMREQ pReq = pUVM->vm.s.apReqFree[i];
2569	pUVM->vm.s.apReqFree[i] = NULL;
2570	for (; pReq; pReq = pReq->pNext, cReqs++)
2571	{
2572	pReq->enmState = VMREQSTATE_INVALID;
2573	RTSemEventDestroy(pReq->EventSem);
2574	}
2575	}
2576	Assert(cReqs == pUVM->vm.s.cReqFree); NOREF(cReqs);
2577
2578	/*
2579	* Kill all queued requests. (There really shouldn't be any!)
2580	*/
2581	for (unsigned i = 0; i < 10; i++)
2582	{
2583	PVMREQ pReqHead = ASMAtomicXchgPtrT(&pUVM->vm.s.pPriorityReqs, NULL, PVMREQ);
2584	if (!pReqHead)
2585	{
2586	pReqHead = ASMAtomicXchgPtrT(&pUVM->vm.s.pNormalReqs, NULL, PVMREQ);
2587	if (!pReqHead)
2588	break;
2589	}
2590	AssertLogRelMsgFailed(("Requests pending! VMR3Destroy caller has to serialize this.\n"));
2591
2592	for (PVMREQ pReq = pReqHead; pReq; pReq = pReq->pNext)
2593	{
2594	ASMAtomicUoWriteS32(&pReq->iStatus, VERR_VM_REQUEST_KILLED);
2595	ASMAtomicWriteSize(&pReq->enmState, VMREQSTATE_INVALID);
2596	RTSemEventSignal(pReq->EventSem);
2597	RTThreadSleep(2);
2598	RTSemEventDestroy(pReq->EventSem);
2599	}
2600	/* give them a chance to respond before we free the request memory. */
2601	RTThreadSleep(32);
2602	}
2603
2604	/*
2605	* Now all queued VCPU requests (again, there shouldn't be any).
2606	*/
2607	for (VMCPUID idCpu = 0; idCpu < pUVM->cCpus; idCpu++)
2608	{
2609	PUVMCPU pUVCpu = &pUVM->aCpus[idCpu];
2610
2611	for (unsigned i = 0; i < 10; i++)
2612	{
2613	PVMREQ pReqHead = ASMAtomicXchgPtrT(&pUVCpu->vm.s.pPriorityReqs, NULL, PVMREQ);
2614	if (!pReqHead)
2615	{
2616	pReqHead = ASMAtomicXchgPtrT(&pUVCpu->vm.s.pNormalReqs, NULL, PVMREQ);
2617	if (!pReqHead)
2618	break;
2619	}
2620	AssertLogRelMsgFailed(("Requests pending! VMR3Destroy caller has to serialize this.\n"));
2621
2622	for (PVMREQ pReq = pReqHead; pReq; pReq = pReq->pNext)
2623	{
2624	ASMAtomicUoWriteS32(&pReq->iStatus, VERR_VM_REQUEST_KILLED);
2625	ASMAtomicWriteSize(&pReq->enmState, VMREQSTATE_INVALID);
2626	RTSemEventSignal(pReq->EventSem);
2627	RTThreadSleep(2);
2628	RTSemEventDestroy(pReq->EventSem);
2629	}
2630	/* give them a chance to respond before we free the request memory. */
2631	RTThreadSleep(32);
2632	}
2633	}
2634
2635	/*
2636	* Make sure the VMMR0.r0 module and whatever else is unloaded.
2637	*/
2638	PDMR3TermUVM(pUVM);
2639
2640	/*
2641	* Terminate the support library if initialized.
2642	*/
2643	if (pUVM->vm.s.pSession)
2644	{
2645	int rc = SUPR3Term(false /fForced/);
2646	AssertRC(rc);
2647	pUVM->vm.s.pSession = NIL_RTR0PTR;
2648	}
2649
2650	/*
2651	* Release the UVM structure reference.
2652	*/
2653	VMR3ReleaseUVM(pUVM);
2654
2655	/*
2656	* Clean up and flush logs.
2657	*/
2658	#ifdef LOG_ENABLED
2659	RTLogSetCustomPrefixCallback(NULL, NULL, NULL);
2660	#endif
2661	RTLogFlush(NULL);
2662	}
2663
2664
2665	/**
2666	* Worker which checks integrity of some internal structures.
2667	* This is yet another attempt to track down that AVL tree crash.
2668	*/
2669	static void vmR3CheckIntegrity(PVM pVM)
2670	{
2671	#ifdef VBOX_STRICT
2672	int rc = PGMR3CheckIntegrity(pVM);
2673	AssertReleaseRC(rc);
2674	#endif
2675	}
2676
2677
2678	/**
2679	* EMT rendezvous worker for VMR3Reset.
2680	*
2681	* This is called by the emulation threads as a response to the reset request
2682	* issued by VMR3Reset().
2683	*
2684	* @returns VERR_VM_INVALID_VM_STATE, VINF_EM_RESET or VINF_EM_SUSPEND. (This
2685	* is a strict return code, see FNVMMEMTRENDEZVOUS.)
2686	*
2687	* @param pVM Pointer to the VM.
2688	* @param pVCpu Pointer to the VMCPU of the EMT.
2689	* @param pvUser Ignored.
2690	*/
2691	static DECLCALLBACK(VBOXSTRICTRC) vmR3Reset(PVM pVM, PVMCPU pVCpu, void *pvUser)
2692	{
2693	Assert(!pvUser); NOREF(pvUser);
2694
2695	/*
2696	* The first EMT will try change the state to resetting. If this fails,
2697	* we won't get called for the other EMTs.
2698	*/
2699	if (pVCpu->idCpu == pVM->cCpus - 1)
2700	{
2701	int rc = vmR3TrySetState(pVM, "VMR3Reset", 3,
2702	VMSTATE_RESETTING, VMSTATE_RUNNING,
2703	VMSTATE_RESETTING, VMSTATE_SUSPENDED,
2704	VMSTATE_RESETTING_LS, VMSTATE_RUNNING_LS);
2705	if (RT_FAILURE(rc))
2706	return rc;
2707	}
2708
2709	/*
2710	* Check the state.
2711	*/
2712	VMSTATE enmVMState = VMR3GetState(pVM);
2713	AssertLogRelMsgReturn( enmVMState == VMSTATE_RESETTING
2714	\|\| enmVMState == VMSTATE_RESETTING_LS,
2715	("%s\n", VMR3GetStateName(enmVMState)),
2716	VERR_VM_UNEXPECTED_UNSTABLE_STATE);
2717
2718	/*
2719	* EMT(0) does the full cleanup after all the other EMTs has been
2720	* thru here and been told to enter the EMSTATE_WAIT_SIPI state.
2721	*
2722	* Because there are per-cpu reset routines and order may/is important,
2723	* the following sequence looks a bit ugly...
2724	*/
2725	if (pVCpu->idCpu == 0)
2726	vmR3CheckIntegrity(pVM);
2727
2728	/* Reset the VCpu state. */
2729	VMCPU_ASSERT_STATE(pVCpu, VMCPUSTATE_STARTED);
2730
2731	/* Clear all pending forced actions. */
2732	VMCPU_FF_CLEAR(pVCpu, VMCPU_FF_ALL_MASK & ~VMCPU_FF_REQUEST);
2733
2734	/*
2735	* Reset the VM components.
2736	*/
2737	if (pVCpu->idCpu == 0)
2738	{
2739	#ifdef VBOX_WITH_RAW_MODE
2740	PATMR3Reset(pVM);
2741	CSAMR3Reset(pVM);
2742	#endif
2743	PDMR3Reset(pVM);
2744	PGMR3Reset(pVM);
2745	SELMR3Reset(pVM);
2746	TRPMR3Reset(pVM);
2747	#ifdef VBOX_WITH_REM
2748	REMR3Reset(pVM);
2749	#endif
2750	IOMR3Reset(pVM);
2751	CPUMR3Reset(pVM);
2752	TMR3Reset(pVM);
2753	EMR3Reset(pVM);
2754	HMR3Reset(pVM); /* This must come after PATM, CSAM, CPUM, SELM and TRPM. */
2755
2756	#ifdef LOG_ENABLED
2757	/*
2758	* Debug logging.
2759	*/
2760	RTLogPrintf("\n\nThe VM was reset:\n");
2761	DBGFR3Info(pVM->pUVM, "cpum", "verbose", NULL);
2762	#endif
2763
2764	/*
2765	* Do memory setup.
2766	*/
2767	PGMR3MemSetup(pVM, true /fAtReset/);
2768	PDMR3MemSetup(pVM, true /fAtReset/);
2769
2770	/*
2771	* Since EMT(0) is the last to go thru here, it will advance the state.
2772	* When a live save is active, we will move on to SuspendingLS but
2773	* leave it for VMR3Reset to do the actual suspending due to deadlock risks.
2774	*/
2775	PUVM pUVM = pVM->pUVM;
2776	RTCritSectEnter(&pUVM->vm.s.AtStateCritSect);
2777	enmVMState = pVM->enmVMState;
2778	if (enmVMState == VMSTATE_RESETTING)
2779	{
2780	if (pUVM->vm.s.enmPrevVMState == VMSTATE_SUSPENDED)
2781	vmR3SetStateLocked(pVM, pUVM, VMSTATE_SUSPENDED, VMSTATE_RESETTING);
2782	else
2783	vmR3SetStateLocked(pVM, pUVM, VMSTATE_RUNNING, VMSTATE_RESETTING);
2784	}
2785	else
2786	vmR3SetStateLocked(pVM, pUVM, VMSTATE_SUSPENDING_LS, VMSTATE_RESETTING_LS);
2787	RTCritSectLeave(&pUVM->vm.s.AtStateCritSect);
2788
2789	vmR3CheckIntegrity(pVM);
2790
2791	/*
2792	* Do the suspend bit as well.
2793	* It only requires some EMT(0) work at present.
2794	*/
2795	if (enmVMState != VMSTATE_RESETTING)
2796	{
2797	vmR3SuspendDoWork(pVM);
2798	vmR3SetState(pVM, VMSTATE_SUSPENDED_LS, VMSTATE_SUSPENDING_LS);
2799	}
2800	}
2801
2802	return enmVMState == VMSTATE_RESETTING
2803	? VINF_EM_RESET
2804	: 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. */
2805	}
2806
2807
2808	/**
2809	* Reset the current VM.
2810	*
2811	* @returns VBox status code.
2812	* @param pUVM The VM to reset.
2813	*/
2814	VMMR3DECL(int) VMR3Reset(PUVM pUVM)
2815	{
2816	LogFlow(("VMR3Reset:\n"));
2817	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
2818	PVM pVM = pUVM->pVM;
2819	VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
2820
2821	/*
2822	* Gather all the EMTs to make sure there are no races before
2823	* changing the VM state.
2824	*/
2825	int rc = VMMR3EmtRendezvous(pVM, VMMEMTRENDEZVOUS_FLAGS_TYPE_DESCENDING \| VMMEMTRENDEZVOUS_FLAGS_STOP_ON_ERROR,
2826	vmR3Reset, NULL);
2827	LogFlow(("VMR3Reset: returns %Rrc\n", rc));
2828	return rc;
2829	}
2830
2831
2832	/**
2833	* Gets the user mode VM structure pointer given Pointer to the VM.
2834	*
2835	* @returns Pointer to the user mode VM structure on success. NULL if @a pVM is
2836	* invalid (asserted).
2837	* @param pVM Pointer to the VM.
2838	* @sa VMR3GetVM, VMR3RetainUVM
2839	*/
2840	VMMR3DECL(PUVM) VMR3GetUVM(PVM pVM)
2841	{
2842	VM_ASSERT_VALID_EXT_RETURN(pVM, NULL);
2843	return pVM->pUVM;
2844	}
2845
2846
2847	/**
2848	* Gets the shared VM structure pointer given the pointer to the user mode VM
2849	* structure.
2850	*
2851	* @returns Pointer to the VM.
2852	* NULL if @a pUVM is invalid (asserted) or if no shared VM structure
2853	* is currently associated with it.
2854	* @param pUVM The user mode VM handle.
2855	* @sa VMR3GetUVM
2856	*/
2857	VMMR3DECL(PVM) VMR3GetVM(PUVM pUVM)
2858	{
2859	UVM_ASSERT_VALID_EXT_RETURN(pUVM, NULL);
2860	return pUVM->pVM;
2861	}
2862
2863
2864	/**
2865	* Retain the user mode VM handle.
2866	*
2867	* @returns Reference count.
2868	* UINT32_MAX if @a pUVM is invalid.
2869	*
2870	* @param pUVM The user mode VM handle.
2871	* @sa VMR3ReleaseUVM
2872	*/
2873	VMMR3DECL(uint32_t) VMR3RetainUVM(PUVM pUVM)
2874	{
2875	UVM_ASSERT_VALID_EXT_RETURN(pUVM, UINT32_MAX);
2876	uint32_t cRefs = ASMAtomicIncU32(&pUVM->vm.s.cUvmRefs);
2877	AssertMsg(cRefs > 0 && cRefs < _64K, ("%u\n", cRefs));
2878	return cRefs;
2879	}
2880
2881
2882	/**
2883	* Does the final release of the UVM structure.
2884	*
2885	* @param pUVM The user mode VM handle.
2886	*/
2887	static void vmR3DoReleaseUVM(PUVM pUVM)
2888	{
2889	/*
2890	* Free the UVM.
2891	*/
2892	Assert(!pUVM->pVM);
2893
2894	MMR3TermUVM(pUVM);
2895	STAMR3TermUVM(pUVM);
2896
2897	ASMAtomicUoWriteU32(&pUVM->u32Magic, UINT32_MAX);
2898	RTTlsFree(pUVM->vm.s.idxTLS);
2899	RTMemPageFree(pUVM, RT_OFFSETOF(UVM, aCpus[pUVM->cCpus]));
2900	}
2901
2902
2903	/**
2904	* Releases a refernece to the mode VM handle.
2905	*
2906	* @returns The new reference count, 0 if destroyed.
2907	* UINT32_MAX if @a pUVM is invalid.
2908	*
2909	* @param pUVM The user mode VM handle.
2910	* @sa VMR3RetainUVM
2911	*/
2912	VMMR3DECL(uint32_t) VMR3ReleaseUVM(PUVM pUVM)
2913	{
2914	if (!pUVM)
2915	return 0;
2916	UVM_ASSERT_VALID_EXT_RETURN(pUVM, UINT32_MAX);
2917	uint32_t cRefs = ASMAtomicDecU32(&pUVM->vm.s.cUvmRefs);
2918	if (!cRefs)
2919	vmR3DoReleaseUVM(pUVM);
2920	else
2921	AssertMsg(cRefs < _64K, ("%u\n", cRefs));
2922	return cRefs;
2923	}
2924
2925
2926	/**
2927	* Gets the VM name.
2928	*
2929	* @returns Pointer to a read-only string containing the name. NULL if called
2930	* too early.
2931	* @param pUVM The user mode VM handle.
2932	*/
2933	VMMR3DECL(const char *) VMR3GetName(PUVM pUVM)
2934	{
2935	UVM_ASSERT_VALID_EXT_RETURN(pUVM, NULL);
2936	return pUVM->vm.s.pszName;
2937	}
2938
2939
2940	/**
2941	* Gets the VM UUID.
2942	*
2943	* @returns pUuid on success, NULL on failure.
2944	* @param pUVM The user mode VM handle.
2945	* @param pUuid Where to store the UUID.
2946	*/
2947	VMMR3DECL(PRTUUID) VMR3GetUuid(PUVM pUVM, PRTUUID pUuid)
2948	{
2949	UVM_ASSERT_VALID_EXT_RETURN(pUVM, NULL);
2950	AssertPtrReturn(pUuid, NULL);
2951
2952	*pUuid = pUVM->vm.s.Uuid;
2953	return pUuid;
2954	}
2955
2956
2957	/**
2958	* Gets the current VM state.
2959	*
2960	* @returns The current VM state.
2961	* @param pVM Pointer to the VM.
2962	* @thread Any
2963	*/
2964	VMMR3DECL(VMSTATE) VMR3GetState(PVM pVM)
2965	{
2966	AssertMsgReturn(RT_VALID_ALIGNED_PTR(pVM, PAGE_SIZE), ("%p\n", pVM), VMSTATE_TERMINATED);
2967	VMSTATE enmVMState = pVM->enmVMState;
2968	return enmVMState >= VMSTATE_CREATING && enmVMState <= VMSTATE_TERMINATED ? enmVMState : VMSTATE_TERMINATED;
2969	}
2970
2971
2972	/**
2973	* Gets the current VM state.
2974	*
2975	* @returns The current VM state.
2976	* @param pUVM The user-mode VM handle.
2977	* @thread Any
2978	*/
2979	VMMR3DECL(VMSTATE) VMR3GetStateU(PUVM pUVM)
2980	{
2981	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VMSTATE_TERMINATED);
2982	if (RT_UNLIKELY(!pUVM->pVM))
2983	return VMSTATE_TERMINATED;
2984	return pUVM->pVM->enmVMState;
2985	}
2986
2987
2988	/**
2989	* Gets the state name string for a VM state.
2990	*
2991	* @returns Pointer to the state name. (readonly)
2992	* @param enmState The state.
2993	*/
2994	VMMR3DECL(const char *) VMR3GetStateName(VMSTATE enmState)
2995	{
2996	switch (enmState)
2997	{
2998	case VMSTATE_CREATING: return "CREATING";
2999	case VMSTATE_CREATED: return "CREATED";
3000	case VMSTATE_LOADING: return "LOADING";
3001	case VMSTATE_POWERING_ON: return "POWERING_ON";
3002	case VMSTATE_RESUMING: return "RESUMING";
3003	case VMSTATE_RUNNING: return "RUNNING";
3004	case VMSTATE_RUNNING_LS: return "RUNNING_LS";
3005	case VMSTATE_RUNNING_FT: return "RUNNING_FT";
3006	case VMSTATE_RESETTING: return "RESETTING";
3007	case VMSTATE_RESETTING_LS: return "RESETTING_LS";
3008	case VMSTATE_SUSPENDED: return "SUSPENDED";
3009	case VMSTATE_SUSPENDED_LS: return "SUSPENDED_LS";
3010	case VMSTATE_SUSPENDED_EXT_LS: return "SUSPENDED_EXT_LS";
3011	case VMSTATE_SUSPENDING: return "SUSPENDING";
3012	case VMSTATE_SUSPENDING_LS: return "SUSPENDING_LS";
3013	case VMSTATE_SUSPENDING_EXT_LS: return "SUSPENDING_EXT_LS";
3014	case VMSTATE_SAVING: return "SAVING";
3015	case VMSTATE_DEBUGGING: return "DEBUGGING";
3016	case VMSTATE_DEBUGGING_LS: return "DEBUGGING_LS";
3017	case VMSTATE_POWERING_OFF: return "POWERING_OFF";
3018	case VMSTATE_POWERING_OFF_LS: return "POWERING_OFF_LS";
3019	case VMSTATE_FATAL_ERROR: return "FATAL_ERROR";
3020	case VMSTATE_FATAL_ERROR_LS: return "FATAL_ERROR_LS";
3021	case VMSTATE_GURU_MEDITATION: return "GURU_MEDITATION";
3022	case VMSTATE_GURU_MEDITATION_LS:return "GURU_MEDITATION_LS";
3023	case VMSTATE_LOAD_FAILURE: return "LOAD_FAILURE";
3024	case VMSTATE_OFF: return "OFF";
3025	case VMSTATE_OFF_LS: return "OFF_LS";
3026	case VMSTATE_DESTROYING: return "DESTROYING";
3027	case VMSTATE_TERMINATED: return "TERMINATED";
3028
3029	default:
3030	AssertMsgFailed(("Unknown state %d\n", enmState));
3031	return "Unknown!\n";
3032	}
3033	}
3034
3035
3036	/**
3037	* Validates the state transition in strict builds.
3038	*
3039	* @returns true if valid, false if not.
3040	*
3041	* @param enmStateOld The old (current) state.
3042	* @param enmStateNew The proposed new state.
3043	*
3044	* @remarks The reference for this is found in doc/vp/VMM.vpp, the VMSTATE
3045	* diagram (under State Machine Diagram).
3046	*/
3047	static bool vmR3ValidateStateTransition(VMSTATE enmStateOld, VMSTATE enmStateNew)
3048	{
3049	#ifdef VBOX_STRICT
3050	switch (enmStateOld)
3051	{
3052	case VMSTATE_CREATING:
3053	AssertMsgReturn(enmStateNew == VMSTATE_CREATED, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3054	break;
3055
3056	case VMSTATE_CREATED:
3057	AssertMsgReturn( enmStateNew == VMSTATE_LOADING
3058	\|\| enmStateNew == VMSTATE_POWERING_ON
3059	\|\| enmStateNew == VMSTATE_POWERING_OFF
3060	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3061	break;
3062
3063	case VMSTATE_LOADING:
3064	AssertMsgReturn( enmStateNew == VMSTATE_SUSPENDED
3065	\|\| enmStateNew == VMSTATE_LOAD_FAILURE
3066	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3067	break;
3068
3069	case VMSTATE_POWERING_ON:
3070	AssertMsgReturn( enmStateNew == VMSTATE_RUNNING
3071	/\|\| enmStateNew == VMSTATE_FATAL_ERROR ?/
3072	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3073	break;
3074
3075	case VMSTATE_RESUMING:
3076	AssertMsgReturn( enmStateNew == VMSTATE_RUNNING
3077	/\|\| enmStateNew == VMSTATE_FATAL_ERROR ?/
3078	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3079	break;
3080
3081	case VMSTATE_RUNNING:
3082	AssertMsgReturn( enmStateNew == VMSTATE_POWERING_OFF
3083	\|\| enmStateNew == VMSTATE_SUSPENDING
3084	\|\| enmStateNew == VMSTATE_RESETTING
3085	\|\| enmStateNew == VMSTATE_RUNNING_LS
3086	\|\| enmStateNew == VMSTATE_RUNNING_FT
3087	\|\| enmStateNew == VMSTATE_DEBUGGING
3088	\|\| enmStateNew == VMSTATE_FATAL_ERROR
3089	\|\| enmStateNew == VMSTATE_GURU_MEDITATION
3090	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3091	break;
3092
3093	case VMSTATE_RUNNING_LS:
3094	AssertMsgReturn( enmStateNew == VMSTATE_POWERING_OFF_LS
3095	\|\| enmStateNew == VMSTATE_SUSPENDING_LS
3096	\|\| enmStateNew == VMSTATE_SUSPENDING_EXT_LS
3097	\|\| enmStateNew == VMSTATE_RESETTING_LS
3098	\|\| enmStateNew == VMSTATE_RUNNING
3099	\|\| enmStateNew == VMSTATE_DEBUGGING_LS
3100	\|\| enmStateNew == VMSTATE_FATAL_ERROR_LS
3101	\|\| enmStateNew == VMSTATE_GURU_MEDITATION_LS
3102	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3103	break;
3104
3105	case VMSTATE_RUNNING_FT:
3106	AssertMsgReturn( enmStateNew == VMSTATE_POWERING_OFF
3107	\|\| enmStateNew == VMSTATE_FATAL_ERROR
3108	\|\| enmStateNew == VMSTATE_GURU_MEDITATION
3109	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3110	break;
3111
3112	case VMSTATE_RESETTING:
3113	AssertMsgReturn(enmStateNew == VMSTATE_RUNNING, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3114	break;
3115
3116	case VMSTATE_RESETTING_LS:
3117	AssertMsgReturn( enmStateNew == VMSTATE_SUSPENDING_LS
3118	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3119	break;
3120
3121	case VMSTATE_SUSPENDING:
3122	AssertMsgReturn(enmStateNew == VMSTATE_SUSPENDED, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3123	break;
3124
3125	case VMSTATE_SUSPENDING_LS:
3126	AssertMsgReturn( enmStateNew == VMSTATE_SUSPENDING
3127	\|\| enmStateNew == VMSTATE_SUSPENDED_LS
3128	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3129	break;
3130
3131	case VMSTATE_SUSPENDING_EXT_LS:
3132	AssertMsgReturn( enmStateNew == VMSTATE_SUSPENDING
3133	\|\| enmStateNew == VMSTATE_SUSPENDED_EXT_LS
3134	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3135	break;
3136
3137	case VMSTATE_SUSPENDED:
3138	AssertMsgReturn( enmStateNew == VMSTATE_POWERING_OFF
3139	\|\| enmStateNew == VMSTATE_SAVING
3140	\|\| enmStateNew == VMSTATE_RESETTING
3141	\|\| enmStateNew == VMSTATE_RESUMING
3142	\|\| enmStateNew == VMSTATE_LOADING
3143	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3144	break;
3145
3146	case VMSTATE_SUSPENDED_LS:
3147	AssertMsgReturn( enmStateNew == VMSTATE_SUSPENDED
3148	\|\| enmStateNew == VMSTATE_SAVING
3149	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3150	break;
3151
3152	case VMSTATE_SUSPENDED_EXT_LS:
3153	AssertMsgReturn( enmStateNew == VMSTATE_SUSPENDED
3154	\|\| enmStateNew == VMSTATE_SAVING
3155	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3156	break;
3157
3158	case VMSTATE_SAVING:
3159	AssertMsgReturn(enmStateNew == VMSTATE_SUSPENDED, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3160	break;
3161
3162	case VMSTATE_DEBUGGING:
3163	AssertMsgReturn( enmStateNew == VMSTATE_RUNNING
3164	\|\| enmStateNew == VMSTATE_POWERING_OFF
3165	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3166	break;
3167
3168	case VMSTATE_DEBUGGING_LS:
3169	AssertMsgReturn( enmStateNew == VMSTATE_DEBUGGING
3170	\|\| enmStateNew == VMSTATE_RUNNING_LS
3171	\|\| enmStateNew == VMSTATE_POWERING_OFF_LS
3172	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3173	break;
3174
3175	case VMSTATE_POWERING_OFF:
3176	AssertMsgReturn(enmStateNew == VMSTATE_OFF, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3177	break;
3178
3179	case VMSTATE_POWERING_OFF_LS:
3180	AssertMsgReturn( enmStateNew == VMSTATE_POWERING_OFF
3181	\|\| enmStateNew == VMSTATE_OFF_LS
3182	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3183	break;
3184
3185	case VMSTATE_OFF:
3186	AssertMsgReturn(enmStateNew == VMSTATE_DESTROYING, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3187	break;
3188
3189	case VMSTATE_OFF_LS:
3190	AssertMsgReturn(enmStateNew == VMSTATE_OFF, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3191	break;
3192
3193	case VMSTATE_FATAL_ERROR:
3194	AssertMsgReturn(enmStateNew == VMSTATE_POWERING_OFF, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3195	break;
3196
3197	case VMSTATE_FATAL_ERROR_LS:
3198	AssertMsgReturn( enmStateNew == VMSTATE_FATAL_ERROR
3199	\|\| enmStateNew == VMSTATE_POWERING_OFF_LS
3200	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3201	break;
3202
3203	case VMSTATE_GURU_MEDITATION:
3204	AssertMsgReturn( enmStateNew == VMSTATE_DEBUGGING
3205	\|\| enmStateNew == VMSTATE_POWERING_OFF
3206	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3207	break;
3208
3209	case VMSTATE_GURU_MEDITATION_LS:
3210	AssertMsgReturn( enmStateNew == VMSTATE_GURU_MEDITATION
3211	\|\| enmStateNew == VMSTATE_DEBUGGING_LS
3212	\|\| enmStateNew == VMSTATE_POWERING_OFF_LS
3213	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3214	break;
3215
3216	case VMSTATE_LOAD_FAILURE:
3217	AssertMsgReturn(enmStateNew == VMSTATE_POWERING_OFF, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3218	break;
3219
3220	case VMSTATE_DESTROYING:
3221	AssertMsgReturn(enmStateNew == VMSTATE_TERMINATED, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3222	break;
3223
3224	case VMSTATE_TERMINATED:
3225	default:
3226	AssertMsgFailedReturn(("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3227	break;
3228	}
3229	#endif /* VBOX_STRICT */
3230	return true;
3231	}
3232
3233
3234	/**
3235	* Does the state change callouts.
3236	*
3237	* The caller owns the AtStateCritSect.
3238	*
3239	* @param pVM Pointer to the VM.
3240	* @param pUVM The UVM handle.
3241	* @param enmStateNew The New state.
3242	* @param enmStateOld The old state.
3243	*/
3244	static void vmR3DoAtState(PVM pVM, PUVM pUVM, VMSTATE enmStateNew, VMSTATE enmStateOld)
3245	{
3246	LogRel(("Changing the VM state from '%s' to '%s'.\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)));
3247
3248	for (PVMATSTATE pCur = pUVM->vm.s.pAtState; pCur; pCur = pCur->pNext)
3249	{
3250	pCur->pfnAtState(pUVM, enmStateNew, enmStateOld, pCur->pvUser);
3251	if ( enmStateNew != VMSTATE_DESTROYING
3252	&& pVM->enmVMState == VMSTATE_DESTROYING)
3253	break;
3254	AssertMsg(pVM->enmVMState == enmStateNew,
3255	("You are not allowed to change the state while in the change callback, except "
3256	"from destroying the VM. There are restrictions in the way the state changes "
3257	"are propagated up to the EM execution loop and it makes the program flow very "
3258	"difficult to follow. (%s, expected %s, old %s)\n",
3259	VMR3GetStateName(pVM->enmVMState), VMR3GetStateName(enmStateNew),
3260	VMR3GetStateName(enmStateOld)));
3261	}
3262	}
3263
3264
3265	/**
3266	* Sets the current VM state, with the AtStatCritSect already entered.
3267	*
3268	* @param pVM Pointer to the VM.
3269	* @param pUVM The UVM handle.
3270	* @param enmStateNew The new state.
3271	* @param enmStateOld The old state.
3272	*/
3273	static void vmR3SetStateLocked(PVM pVM, PUVM pUVM, VMSTATE enmStateNew, VMSTATE enmStateOld)
3274	{
3275	vmR3ValidateStateTransition(enmStateOld, enmStateNew);
3276
3277	AssertMsg(pVM->enmVMState == enmStateOld,
3278	("%s != %s\n", VMR3GetStateName(pVM->enmVMState), VMR3GetStateName(enmStateOld)));
3279	pUVM->vm.s.enmPrevVMState = enmStateOld;
3280	pVM->enmVMState = enmStateNew;
3281	VM_FF_CLEAR(pVM, VM_FF_CHECK_VM_STATE);
3282
3283	vmR3DoAtState(pVM, pUVM, enmStateNew, enmStateOld);
3284	}
3285
3286
3287	/**
3288	* Sets the current VM state.
3289	*
3290	* @param pVM Pointer to the VM.
3291	* @param enmStateNew The new state.
3292	* @param enmStateOld The old state (for asserting only).
3293	*/
3294	static void vmR3SetState(PVM pVM, VMSTATE enmStateNew, VMSTATE enmStateOld)
3295	{
3296	PUVM pUVM = pVM->pUVM;
3297	RTCritSectEnter(&pUVM->vm.s.AtStateCritSect);
3298
3299	AssertMsg(pVM->enmVMState == enmStateOld,
3300	("%s != %s\n", VMR3GetStateName(pVM->enmVMState), VMR3GetStateName(enmStateOld)));
3301	vmR3SetStateLocked(pVM, pUVM, enmStateNew, pVM->enmVMState);
3302
3303	RTCritSectLeave(&pUVM->vm.s.AtStateCritSect);
3304	}
3305
3306
3307	/**
3308	* Tries to perform a state transition.
3309	*
3310	* @returns The 1-based ordinal of the succeeding transition.
3311	* VERR_VM_INVALID_VM_STATE and Assert+LogRel on failure.
3312	*
3313	* @param pVM Pointer to the VM.
3314	* @param pszWho Who is trying to change it.
3315	* @param cTransitions The number of transitions in the ellipsis.
3316	* @param ... Transition pairs; new, old.
3317	*/
3318	static int vmR3TrySetState(PVM pVM, const char *pszWho, unsigned cTransitions, ...)
3319	{
3320	va_list va;
3321	VMSTATE enmStateNew = VMSTATE_CREATED;
3322	VMSTATE enmStateOld = VMSTATE_CREATED;
3323
3324	#ifdef VBOX_STRICT
3325	/*
3326	* Validate the input first.
3327	*/
3328	va_start(va, cTransitions);
3329	for (unsigned i = 0; i < cTransitions; i++)
3330	{
3331	enmStateNew = (VMSTATE)va_arg(va, /VMSTATE/int);
3332	enmStateOld = (VMSTATE)va_arg(va, /VMSTATE/int);
3333	vmR3ValidateStateTransition(enmStateOld, enmStateNew);
3334	}
3335	va_end(va);
3336	#endif
3337
3338	/*
3339	* Grab the lock and see if any of the proposed transitions works out.
3340	*/
3341	va_start(va, cTransitions);
3342	int rc = VERR_VM_INVALID_VM_STATE;
3343	PUVM pUVM = pVM->pUVM;
3344	RTCritSectEnter(&pUVM->vm.s.AtStateCritSect);
3345
3346	VMSTATE enmStateCur = pVM->enmVMState;
3347
3348	for (unsigned i = 0; i < cTransitions; i++)
3349	{
3350	enmStateNew = (VMSTATE)va_arg(va, /VMSTATE/int);
3351	enmStateOld = (VMSTATE)va_arg(va, /VMSTATE/int);
3352	if (enmStateCur == enmStateOld)
3353	{
3354	vmR3SetStateLocked(pVM, pUVM, enmStateNew, enmStateOld);
3355	rc = i + 1;
3356	break;
3357	}
3358	}
3359
3360	if (RT_FAILURE(rc))
3361	{
3362	/*
3363	* Complain about it.
3364	*/
3365	if (cTransitions == 1)
3366	{
3367	LogRel(("%s: %s -> %s failed, because the VM state is actually %s\n",
3368	pszWho, VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew), VMR3GetStateName(enmStateCur)));
3369	VMSetError(pVM, VERR_VM_INVALID_VM_STATE, RT_SRC_POS,
3370	N_("%s failed because the VM state is %s instead of %s"),
3371	pszWho, VMR3GetStateName(enmStateCur), VMR3GetStateName(enmStateOld));
3372	AssertMsgFailed(("%s: %s -> %s failed, because the VM state is actually %s\n",
3373	pszWho, VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew), VMR3GetStateName(enmStateCur)));
3374	}
3375	else
3376	{
3377	va_end(va);
3378	va_start(va, cTransitions);
3379	LogRel(("%s:\n", pszWho));
3380	for (unsigned i = 0; i < cTransitions; i++)
3381	{
3382	enmStateNew = (VMSTATE)va_arg(va, /VMSTATE/int);
3383	enmStateOld = (VMSTATE)va_arg(va, /VMSTATE/int);
3384	LogRel(("%s%s -> %s",
3385	i ? ", " : " ", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)));
3386	}
3387	LogRel((" failed, because the VM state is actually %s\n", VMR3GetStateName(enmStateCur)));
3388	VMSetError(pVM, VERR_VM_INVALID_VM_STATE, RT_SRC_POS,
3389	N_("%s failed because the current VM state, %s, was not found in the state transition table"),
3390	pszWho, VMR3GetStateName(enmStateCur), VMR3GetStateName(enmStateOld));
3391	AssertMsgFailed(("%s - state=%s, see release log for full details. Check the cTransitions passed us.\n",
3392	pszWho, VMR3GetStateName(enmStateCur)));
3393	}
3394	}
3395
3396	RTCritSectLeave(&pUVM->vm.s.AtStateCritSect);
3397	va_end(va);
3398	Assert(rc > 0 \|\| rc < 0);
3399	return rc;
3400	}
3401
3402
3403	/**
3404	* Flag a guru meditation ... a hack.
3405	*
3406	* @param pVM Pointer to the VM.
3407	*
3408	* @todo Rewrite this part. The guru meditation should be flagged
3409	* immediately by the VMM and not by VMEmt.cpp when it's all over.
3410	*/
3411	void vmR3SetGuruMeditation(PVM pVM)
3412	{
3413	PUVM pUVM = pVM->pUVM;
3414	RTCritSectEnter(&pUVM->vm.s.AtStateCritSect);
3415
3416	VMSTATE enmStateCur = pVM->enmVMState;
3417	if (enmStateCur == VMSTATE_RUNNING)
3418	vmR3SetStateLocked(pVM, pUVM, VMSTATE_GURU_MEDITATION, VMSTATE_RUNNING);
3419	else if (enmStateCur == VMSTATE_RUNNING_LS)
3420	{
3421	vmR3SetStateLocked(pVM, pUVM, VMSTATE_GURU_MEDITATION_LS, VMSTATE_RUNNING_LS);
3422	SSMR3Cancel(pUVM);
3423	}
3424
3425	RTCritSectLeave(&pUVM->vm.s.AtStateCritSect);
3426	}
3427
3428
3429	/**
3430	* Called by vmR3EmulationThreadWithId just before the VM structure is freed.
3431	*
3432	* @param pVM Pointer to the VM.
3433	*/
3434	void vmR3SetTerminated(PVM pVM)
3435	{
3436	vmR3SetState(pVM, VMSTATE_TERMINATED, VMSTATE_DESTROYING);
3437	}
3438
3439
3440	/**
3441	* Checks if the VM was teleported and hasn't been fully resumed yet.
3442	*
3443	* This applies to both sides of the teleportation since we may leave a working
3444	* clone behind and the user is allowed to resume this...
3445	*
3446	* @returns true / false.
3447	* @param pVM Pointer to the VM.
3448	* @thread Any thread.
3449	*/
3450	VMMR3_INT_DECL(bool) VMR3TeleportedAndNotFullyResumedYet(PVM pVM)
3451	{
3452	VM_ASSERT_VALID_EXT_RETURN(pVM, false);
3453	return pVM->vm.s.fTeleportedAndNotFullyResumedYet;
3454	}
3455
3456
3457	/**
3458	* Registers a VM state change callback.
3459	*
3460	* You are not allowed to call any function which changes the VM state from a
3461	* state callback.
3462	*
3463	* @returns VBox status code.
3464	* @param pUVM The VM handle.
3465	* @param pfnAtState Pointer to callback.
3466	* @param pvUser User argument.
3467	* @thread Any.
3468	*/
3469	VMMR3DECL(int) VMR3AtStateRegister(PUVM pUVM, PFNVMATSTATE pfnAtState, void *pvUser)
3470	{
3471	LogFlow(("VMR3AtStateRegister: pfnAtState=%p pvUser=%p\n", pfnAtState, pvUser));
3472
3473	/*
3474	* Validate input.
3475	*/
3476	AssertPtrReturn(pfnAtState, VERR_INVALID_PARAMETER);
3477	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
3478
3479	/*
3480	* Allocate a new record.
3481	*/
3482	PVMATSTATE pNew = (PVMATSTATE)MMR3HeapAllocU(pUVM, MM_TAG_VM, sizeof(*pNew));
3483	if (!pNew)
3484	return VERR_NO_MEMORY;
3485
3486	/* fill */
3487	pNew->pfnAtState = pfnAtState;
3488	pNew->pvUser = pvUser;
3489
3490	/* insert */
3491	RTCritSectEnter(&pUVM->vm.s.AtStateCritSect);
3492	pNew->pNext = *pUVM->vm.s.ppAtStateNext;
3493	*pUVM->vm.s.ppAtStateNext = pNew;
3494	pUVM->vm.s.ppAtStateNext = &pNew->pNext;
3495	RTCritSectLeave(&pUVM->vm.s.AtStateCritSect);
3496
3497	return VINF_SUCCESS;
3498	}
3499
3500
3501	/**
3502	* Deregisters a VM state change callback.
3503	*
3504	* @returns VBox status code.
3505	* @param pUVM The VM handle.
3506	* @param pfnAtState Pointer to callback.
3507	* @param pvUser User argument.
3508	* @thread Any.
3509	*/
3510	VMMR3DECL(int) VMR3AtStateDeregister(PUVM pUVM, PFNVMATSTATE pfnAtState, void *pvUser)
3511	{
3512	LogFlow(("VMR3AtStateDeregister: pfnAtState=%p pvUser=%p\n", pfnAtState, pvUser));
3513
3514	/*
3515	* Validate input.
3516	*/
3517	AssertPtrReturn(pfnAtState, VERR_INVALID_PARAMETER);
3518	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
3519
3520	RTCritSectEnter(&pUVM->vm.s.AtStateCritSect);
3521
3522	/*
3523	* Search the list for the entry.
3524	*/
3525	PVMATSTATE pPrev = NULL;
3526	PVMATSTATE pCur = pUVM->vm.s.pAtState;
3527	while ( pCur
3528	&& ( pCur->pfnAtState != pfnAtState
3529	\|\| pCur->pvUser != pvUser))
3530	{
3531	pPrev = pCur;
3532	pCur = pCur->pNext;
3533	}
3534	if (!pCur)
3535	{
3536	AssertMsgFailed(("pfnAtState=%p was not found\n", pfnAtState));
3537	RTCritSectLeave(&pUVM->vm.s.AtStateCritSect);
3538	return VERR_FILE_NOT_FOUND;
3539	}
3540
3541	/*
3542	* Unlink it.
3543	*/
3544	if (pPrev)
3545	{
3546	pPrev->pNext = pCur->pNext;
3547	if (!pCur->pNext)
3548	pUVM->vm.s.ppAtStateNext = &pPrev->pNext;
3549	}
3550	else
3551	{
3552	pUVM->vm.s.pAtState = pCur->pNext;
3553	if (!pCur->pNext)
3554	pUVM->vm.s.ppAtStateNext = &pUVM->vm.s.pAtState;
3555	}
3556
3557	RTCritSectLeave(&pUVM->vm.s.AtStateCritSect);
3558
3559	/*
3560	* Free it.
3561	*/
3562	pCur->pfnAtState = NULL;
3563	pCur->pNext = NULL;
3564	MMR3HeapFree(pCur);
3565
3566	return VINF_SUCCESS;
3567	}
3568
3569
3570	/**
3571	* Registers a VM error callback.
3572	*
3573	* @returns VBox status code.
3574	* @param pUVM The VM handle.
3575	* @param pfnAtError Pointer to callback.
3576	* @param pvUser User argument.
3577	* @thread Any.
3578	*/
3579	VMMR3DECL(int) VMR3AtErrorRegister(PUVM pUVM, PFNVMATERROR pfnAtError, void *pvUser)
3580	{
3581	LogFlow(("VMR3AtErrorRegister: pfnAtError=%p pvUser=%p\n", pfnAtError, pvUser));
3582
3583	/*
3584	* Validate input.
3585	*/
3586	AssertPtrReturn(pfnAtError, VERR_INVALID_PARAMETER);
3587	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
3588
3589	/*
3590	* Allocate a new record.
3591	*/
3592	PVMATERROR pNew = (PVMATERROR)MMR3HeapAllocU(pUVM, MM_TAG_VM, sizeof(*pNew));
3593	if (!pNew)
3594	return VERR_NO_MEMORY;
3595
3596	/* fill */
3597	pNew->pfnAtError = pfnAtError;
3598	pNew->pvUser = pvUser;
3599
3600	/* insert */
3601	RTCritSectEnter(&pUVM->vm.s.AtErrorCritSect);
3602	pNew->pNext = *pUVM->vm.s.ppAtErrorNext;
3603	*pUVM->vm.s.ppAtErrorNext = pNew;
3604	pUVM->vm.s.ppAtErrorNext = &pNew->pNext;
3605	RTCritSectLeave(&pUVM->vm.s.AtErrorCritSect);
3606
3607	return VINF_SUCCESS;
3608	}
3609
3610
3611	/**
3612	* Deregisters a VM error callback.
3613	*
3614	* @returns VBox status code.
3615	* @param pUVM The VM handle.
3616	* @param pfnAtError Pointer to callback.
3617	* @param pvUser User argument.
3618	* @thread Any.
3619	*/
3620	VMMR3DECL(int) VMR3AtErrorDeregister(PUVM pUVM, PFNVMATERROR pfnAtError, void *pvUser)
3621	{
3622	LogFlow(("VMR3AtErrorDeregister: pfnAtError=%p pvUser=%p\n", pfnAtError, pvUser));
3623
3624	/*
3625	* Validate input.
3626	*/
3627	AssertPtrReturn(pfnAtError, VERR_INVALID_PARAMETER);
3628	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
3629
3630	RTCritSectEnter(&pUVM->vm.s.AtErrorCritSect);
3631
3632	/*
3633	* Search the list for the entry.
3634	*/
3635	PVMATERROR pPrev = NULL;
3636	PVMATERROR pCur = pUVM->vm.s.pAtError;
3637	while ( pCur
3638	&& ( pCur->pfnAtError != pfnAtError
3639	\|\| pCur->pvUser != pvUser))
3640	{
3641	pPrev = pCur;
3642	pCur = pCur->pNext;
3643	}
3644	if (!pCur)
3645	{
3646	AssertMsgFailed(("pfnAtError=%p was not found\n", pfnAtError));
3647	RTCritSectLeave(&pUVM->vm.s.AtErrorCritSect);
3648	return VERR_FILE_NOT_FOUND;
3649	}
3650
3651	/*
3652	* Unlink it.
3653	*/
3654	if (pPrev)
3655	{
3656	pPrev->pNext = pCur->pNext;
3657	if (!pCur->pNext)
3658	pUVM->vm.s.ppAtErrorNext = &pPrev->pNext;
3659	}
3660	else
3661	{
3662	pUVM->vm.s.pAtError = pCur->pNext;
3663	if (!pCur->pNext)
3664	pUVM->vm.s.ppAtErrorNext = &pUVM->vm.s.pAtError;
3665	}
3666
3667	RTCritSectLeave(&pUVM->vm.s.AtErrorCritSect);
3668
3669	/*
3670	* Free it.
3671	*/
3672	pCur->pfnAtError = NULL;
3673	pCur->pNext = NULL;
3674	MMR3HeapFree(pCur);
3675
3676	return VINF_SUCCESS;
3677	}
3678
3679
3680	/**
3681	* Ellipsis to va_list wrapper for calling pfnAtError.
3682	*/
3683	static void vmR3SetErrorWorkerDoCall(PVM pVM, PVMATERROR pCur, int rc, RT_SRC_POS_DECL, const char *pszFormat, ...)
3684	{
3685	va_list va;
3686	va_start(va, pszFormat);
3687	pCur->pfnAtError(pVM->pUVM, pCur->pvUser, rc, RT_SRC_POS_ARGS, pszFormat, va);
3688	va_end(va);
3689	}
3690
3691
3692	/**
3693	* This is a worker function for GC and Ring-0 calls to VMSetError and VMSetErrorV.
3694	* The message is found in VMINT.
3695	*
3696	* @param pVM Pointer to the VM.
3697	* @thread EMT.
3698	*/
3699	VMMR3_INT_DECL(void) VMR3SetErrorWorker(PVM pVM)
3700	{
3701	VM_ASSERT_EMT(pVM);
3702	AssertReleaseMsgFailed(("And we have a winner! You get to implement Ring-0 and GC VMSetErrorV! Congrats!\n"));
3703
3704	/*
3705	* Unpack the error (if we managed to format one).
3706	*/
3707	PVMERROR pErr = pVM->vm.s.pErrorR3;
3708	const char *pszFile = NULL;
3709	const char *pszFunction = NULL;
3710	uint32_t iLine = 0;
3711	const char *pszMessage;
3712	int32_t rc = VERR_MM_HYPER_NO_MEMORY;
3713	if (pErr)
3714	{
3715	AssertCompile(sizeof(const char) == sizeof(uint8_t));
3716	if (pErr->offFile)
3717	pszFile = (const char *)pErr + pErr->offFile;
3718	iLine = pErr->iLine;
3719	if (pErr->offFunction)
3720	pszFunction = (const char *)pErr + pErr->offFunction;
3721	if (pErr->offMessage)
3722	pszMessage = (const char *)pErr + pErr->offMessage;
3723	else
3724	pszMessage = "No message!";
3725	}
3726	else
3727	pszMessage = "No message! (Failed to allocate memory to put the error message in!)";
3728
3729	/*
3730	* Call the at error callbacks.
3731	*/
3732	PUVM pUVM = pVM->pUVM;
3733	RTCritSectEnter(&pUVM->vm.s.AtErrorCritSect);
3734	ASMAtomicIncU32(&pUVM->vm.s.cRuntimeErrors);
3735	for (PVMATERROR pCur = pUVM->vm.s.pAtError; pCur; pCur = pCur->pNext)
3736	vmR3SetErrorWorkerDoCall(pVM, pCur, rc, RT_SRC_POS_ARGS, "%s", pszMessage);
3737	RTCritSectLeave(&pUVM->vm.s.AtErrorCritSect);
3738	}
3739
3740
3741	/**
3742	* Gets the number of errors raised via VMSetError.
3743	*
3744	* This can be used avoid double error messages.
3745	*
3746	* @returns The error count.
3747	* @param pUVM The VM handle.
3748	*/
3749	VMMR3_INT_DECL(uint32_t) VMR3GetErrorCount(PUVM pUVM)
3750	{
3751	AssertPtrReturn(pUVM, 0);
3752	AssertReturn(pUVM->u32Magic == UVM_MAGIC, 0);
3753	return pUVM->vm.s.cErrors;
3754	}
3755
3756
3757	/**
3758	* Creation time wrapper for vmR3SetErrorUV.
3759	*
3760	* @returns rc.
3761	* @param pUVM Pointer to the user mode VM structure.
3762	* @param rc The VBox status code.
3763	* @param RT_SRC_POS_DECL The source position of this error.
3764	* @param pszFormat Format string.
3765	* @param ... The arguments.
3766	* @thread Any thread.
3767	*/
3768	static int vmR3SetErrorU(PUVM pUVM, int rc, RT_SRC_POS_DECL, const char *pszFormat, ...)
3769	{
3770	va_list va;
3771	va_start(va, pszFormat);
3772	vmR3SetErrorUV(pUVM, rc, pszFile, iLine, pszFunction, pszFormat, &va);
3773	va_end(va);
3774	return rc;
3775	}
3776
3777
3778	/**
3779	* Worker which calls everyone listening to the VM error messages.
3780	*
3781	* @param pUVM Pointer to the user mode VM structure.
3782	* @param rc The VBox status code.
3783	* @param RT_SRC_POS_DECL The source position of this error.
3784	* @param pszFormat Format string.
3785	* @param pArgs Pointer to the format arguments.
3786	* @thread EMT
3787	*/
3788	DECLCALLBACK(void) vmR3SetErrorUV(PUVM pUVM, int rc, RT_SRC_POS_DECL, const char pszFormat, va_list pArgs)
3789	{
3790	/*
3791	* Log the error.
3792	*/
3793	va_list va3;
3794	va_copy(va3, *pArgs);
3795	RTLogRelPrintf("VMSetError: %s(%d) %s; rc=%Rrc\n"
3796	"VMSetError: %N\n",
3797	pszFile, iLine, pszFunction, rc,
3798	pszFormat, &va3);
3799	va_end(va3);
3800
3801	#ifdef LOG_ENABLED
3802	va_copy(va3, *pArgs);
3803	RTLogPrintf("VMSetError: %s(%d) %s; rc=%Rrc\n"
3804	"%N\n",
3805	pszFile, iLine, pszFunction, rc,
3806	pszFormat, &va3);
3807	va_end(va3);
3808	#endif
3809
3810	/*
3811	* Make a copy of the message.
3812	*/
3813	if (pUVM->pVM)
3814	vmSetErrorCopy(pUVM->pVM, rc, RT_SRC_POS_ARGS, pszFormat, *pArgs);
3815
3816	/*
3817	* Call the at error callbacks.
3818	*/
3819	bool fCalledSomeone = false;
3820	RTCritSectEnter(&pUVM->vm.s.AtErrorCritSect);
3821	ASMAtomicIncU32(&pUVM->vm.s.cErrors);
3822	for (PVMATERROR pCur = pUVM->vm.s.pAtError; pCur; pCur = pCur->pNext)
3823	{
3824	va_list va2;
3825	va_copy(va2, *pArgs);
3826	pCur->pfnAtError(pUVM, pCur->pvUser, rc, RT_SRC_POS_ARGS, pszFormat, va2);
3827	va_end(va2);
3828	fCalledSomeone = true;
3829	}
3830	RTCritSectLeave(&pUVM->vm.s.AtErrorCritSect);
3831	}
3832
3833
3834	/**
3835	* Sets the error message.
3836	*
3837	* @returns rc. Meaning you can do:
3838	* @code
3839	* return VM_SET_ERROR_U(pUVM, VERR_OF_YOUR_CHOICE, "descriptive message");
3840	* @endcode
3841	* @param pUVM The user mode VM handle.
3842	* @param rc VBox status code.
3843	* @param RT_SRC_POS_DECL Use RT_SRC_POS.
3844	* @param pszFormat Error message format string.
3845	* @param ... Error message arguments.
3846	* @thread Any
3847	*/
3848	VMMR3DECL(int) VMR3SetError(PUVM pUVM, int rc, RT_SRC_POS_DECL, const char *pszFormat, ...)
3849	{
3850	va_list va;
3851	va_start(va, pszFormat);
3852	int rcRet = VMR3SetErrorV(pUVM, rc, pszFile, iLine, pszFunction, pszFormat, va);
3853	va_end(va);
3854	return rcRet;
3855	}
3856
3857
3858	/**
3859	* Sets the error message.
3860	*
3861	* @returns rc. Meaning you can do:
3862	* @code
3863	* return VM_SET_ERROR_U(pUVM, VERR_OF_YOUR_CHOICE, "descriptive message");
3864	* @endcode
3865	* @param pUVM The user mode VM handle.
3866	* @param rc VBox status code.
3867	* @param RT_SRC_POS_DECL Use RT_SRC_POS.
3868	* @param pszFormat Error message format string.
3869	* @param va Error message arguments.
3870	* @thread Any
3871	*/
3872	VMMR3DECL(int) VMR3SetErrorV(PUVM pUVM, int rc, RT_SRC_POS_DECL, const char *pszFormat, va_list va)
3873	{
3874	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
3875	VM_ASSERT_VALID_EXT_RETURN(pUVM->pVM, VERR_INVALID_VM_HANDLE);
3876	return VMSetErrorV(pUVM->pVM, rc, pszFile, iLine, pszFunction, pszFormat, va);
3877	}
3878
3879
3880
3881	/**
3882	* Registers a VM runtime error callback.
3883	*
3884	* @returns VBox status code.
3885	* @param pVM Pointer to the VM.
3886	* @param pfnAtRuntimeError Pointer to callback.
3887	* @param pvUser User argument.
3888	* @thread Any.
3889	*/
3890	VMMR3DECL(int) VMR3AtRuntimeErrorRegister(PUVM pUVM, PFNVMATRUNTIMEERROR pfnAtRuntimeError, void *pvUser)
3891	{
3892	LogFlow(("VMR3AtRuntimeErrorRegister: pfnAtRuntimeError=%p pvUser=%p\n", pfnAtRuntimeError, pvUser));
3893
3894	/*
3895	* Validate input.
3896	*/
3897	AssertPtrReturn(pfnAtRuntimeError, VERR_INVALID_PARAMETER);
3898	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
3899
3900	/*
3901	* Allocate a new record.
3902	*/
3903	PVMATRUNTIMEERROR pNew = (PVMATRUNTIMEERROR)MMR3HeapAllocU(pUVM, MM_TAG_VM, sizeof(*pNew));
3904	if (!pNew)
3905	return VERR_NO_MEMORY;
3906
3907	/* fill */
3908	pNew->pfnAtRuntimeError = pfnAtRuntimeError;
3909	pNew->pvUser = pvUser;
3910
3911	/* insert */
3912	RTCritSectEnter(&pUVM->vm.s.AtErrorCritSect);
3913	pNew->pNext = *pUVM->vm.s.ppAtRuntimeErrorNext;
3914	*pUVM->vm.s.ppAtRuntimeErrorNext = pNew;
3915	pUVM->vm.s.ppAtRuntimeErrorNext = &pNew->pNext;
3916	RTCritSectLeave(&pUVM->vm.s.AtErrorCritSect);
3917
3918	return VINF_SUCCESS;
3919	}
3920
3921
3922	/**
3923	* Deregisters a VM runtime error callback.
3924	*
3925	* @returns VBox status code.
3926	* @param pUVM The user mode VM handle.
3927	* @param pfnAtRuntimeError Pointer to callback.
3928	* @param pvUser User argument.
3929	* @thread Any.
3930	*/
3931	VMMR3DECL(int) VMR3AtRuntimeErrorDeregister(PUVM pUVM, PFNVMATRUNTIMEERROR pfnAtRuntimeError, void *pvUser)
3932	{
3933	LogFlow(("VMR3AtRuntimeErrorDeregister: pfnAtRuntimeError=%p pvUser=%p\n", pfnAtRuntimeError, pvUser));
3934
3935	/*
3936	* Validate input.
3937	*/
3938	AssertPtrReturn(pfnAtRuntimeError, VERR_INVALID_PARAMETER);
3939	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
3940
3941	RTCritSectEnter(&pUVM->vm.s.AtErrorCritSect);
3942
3943	/*
3944	* Search the list for the entry.
3945	*/
3946	PVMATRUNTIMEERROR pPrev = NULL;
3947	PVMATRUNTIMEERROR pCur = pUVM->vm.s.pAtRuntimeError;
3948	while ( pCur
3949	&& ( pCur->pfnAtRuntimeError != pfnAtRuntimeError
3950	\|\| pCur->pvUser != pvUser))
3951	{
3952	pPrev = pCur;
3953	pCur = pCur->pNext;
3954	}
3955	if (!pCur)
3956	{
3957	AssertMsgFailed(("pfnAtRuntimeError=%p was not found\n", pfnAtRuntimeError));
3958	RTCritSectLeave(&pUVM->vm.s.AtErrorCritSect);
3959	return VERR_FILE_NOT_FOUND;
3960	}
3961
3962	/*
3963	* Unlink it.
3964	*/
3965	if (pPrev)
3966	{
3967	pPrev->pNext = pCur->pNext;
3968	if (!pCur->pNext)
3969	pUVM->vm.s.ppAtRuntimeErrorNext = &pPrev->pNext;
3970	}
3971	else
3972	{
3973	pUVM->vm.s.pAtRuntimeError = pCur->pNext;
3974	if (!pCur->pNext)
3975	pUVM->vm.s.ppAtRuntimeErrorNext = &pUVM->vm.s.pAtRuntimeError;
3976	}
3977
3978	RTCritSectLeave(&pUVM->vm.s.AtErrorCritSect);
3979
3980	/*
3981	* Free it.
3982	*/
3983	pCur->pfnAtRuntimeError = NULL;
3984	pCur->pNext = NULL;
3985	MMR3HeapFree(pCur);
3986
3987	return VINF_SUCCESS;
3988	}
3989
3990
3991	/**
3992	* EMT rendezvous worker that vmR3SetRuntimeErrorCommon uses to safely change
3993	* the state to FatalError(LS).
3994	*
3995	* @returns VERR_VM_INVALID_VM_STATE or VINF_EM_SUSPEND. (This is a strict
3996	* return code, see FNVMMEMTRENDEZVOUS.)
3997	*
3998	* @param pVM Pointer to the VM.
3999	* @param pVCpu Pointer to the VMCPU of the EMT.
4000	* @param pvUser Ignored.
4001	*/
4002	static DECLCALLBACK(VBOXSTRICTRC) vmR3SetRuntimeErrorChangeState(PVM pVM, PVMCPU pVCpu, void *pvUser)
4003	{
4004	NOREF(pVCpu);
4005	Assert(!pvUser); NOREF(pvUser);
4006
4007	/*
4008	* The first EMT thru here changes the state.
4009	*/
4010	if (pVCpu->idCpu == pVM->cCpus - 1)
4011	{
4012	int rc = vmR3TrySetState(pVM, "VMSetRuntimeError", 2,
4013	VMSTATE_FATAL_ERROR, VMSTATE_RUNNING,
4014	VMSTATE_FATAL_ERROR_LS, VMSTATE_RUNNING_LS);
4015	if (RT_FAILURE(rc))
4016	return rc;
4017	if (rc == 2)
4018	SSMR3Cancel(pVM->pUVM);
4019
4020	VM_FF_SET(pVM, VM_FF_CHECK_VM_STATE);
4021	}
4022
4023	/* This'll make sure we get out of whereever we are (e.g. REM). */
4024	return VINF_EM_SUSPEND;
4025	}
4026
4027
4028	/**
4029	* Worker for VMR3SetRuntimeErrorWorker and vmR3SetRuntimeErrorV.
4030	*
4031	* This does the common parts after the error has been saved / retrieved.
4032	*
4033	* @returns VBox status code with modifications, see VMSetRuntimeErrorV.
4034	*
4035	* @param pVM Pointer to the VM.
4036	* @param fFlags The error flags.
4037	* @param pszErrorId Error ID string.
4038	* @param pszFormat Format string.
4039	* @param pVa Pointer to the format arguments.
4040	*/
4041	static int vmR3SetRuntimeErrorCommon(PVM pVM, uint32_t fFlags, const char pszErrorId, const char pszFormat, va_list *pVa)
4042	{
4043	LogRel(("VM: Raising runtime error '%s' (fFlags=%#x)\n", pszErrorId, fFlags));
4044	PUVM pUVM = pVM->pUVM;
4045
4046	/*
4047	* Take actions before the call.
4048	*/
4049	int rc;
4050	if (fFlags & VMSETRTERR_FLAGS_FATAL)
4051	rc = VMMR3EmtRendezvous(pVM, VMMEMTRENDEZVOUS_FLAGS_TYPE_DESCENDING \| VMMEMTRENDEZVOUS_FLAGS_STOP_ON_ERROR,
4052	vmR3SetRuntimeErrorChangeState, NULL);
4053	else if (fFlags & VMSETRTERR_FLAGS_SUSPEND)
4054	rc = VMR3Suspend(pUVM);
4055	else
4056	rc = VINF_SUCCESS;
4057
4058	/*
4059	* Do the callback round.
4060	*/
4061	RTCritSectEnter(&pUVM->vm.s.AtErrorCritSect);
4062	ASMAtomicIncU32(&pUVM->vm.s.cRuntimeErrors);
4063	for (PVMATRUNTIMEERROR pCur = pUVM->vm.s.pAtRuntimeError; pCur; pCur = pCur->pNext)
4064	{
4065	va_list va;
4066	va_copy(va, *pVa);
4067	pCur->pfnAtRuntimeError(pUVM, pCur->pvUser, fFlags, pszErrorId, pszFormat, va);
4068	va_end(va);
4069	}
4070	RTCritSectLeave(&pUVM->vm.s.AtErrorCritSect);
4071
4072	return rc;
4073	}
4074
4075
4076	/**
4077	* Ellipsis to va_list wrapper for calling vmR3SetRuntimeErrorCommon.
4078	*/
4079	static int vmR3SetRuntimeErrorCommonF(PVM pVM, uint32_t fFlags, const char pszErrorId, const char pszFormat, ...)
4080	{
4081	va_list va;
4082	va_start(va, pszFormat);
4083	int rc = vmR3SetRuntimeErrorCommon(pVM, fFlags, pszErrorId, pszFormat, &va);
4084	va_end(va);
4085	return rc;
4086	}
4087
4088
4089	/**
4090	* This is a worker function for RC and Ring-0 calls to VMSetError and
4091	* VMSetErrorV.
4092	*
4093	* The message is found in VMINT.
4094	*
4095	* @returns VBox status code, see VMSetRuntimeError.
4096	* @param pVM Pointer to the VM.
4097	* @thread EMT.
4098	*/
4099	VMMR3_INT_DECL(int) VMR3SetRuntimeErrorWorker(PVM pVM)
4100	{
4101	VM_ASSERT_EMT(pVM);
4102	AssertReleaseMsgFailed(("And we have a winner! You get to implement Ring-0 and GC VMSetRuntimeErrorV! Congrats!\n"));
4103
4104	/*
4105	* Unpack the error (if we managed to format one).
4106	*/
4107	const char *pszErrorId = "SetRuntimeError";
4108	const char *pszMessage = "No message!";
4109	uint32_t fFlags = VMSETRTERR_FLAGS_FATAL;
4110	PVMRUNTIMEERROR pErr = pVM->vm.s.pRuntimeErrorR3;
4111	if (pErr)
4112	{
4113	AssertCompile(sizeof(const char) == sizeof(uint8_t));
4114	if (pErr->offErrorId)
4115	pszErrorId = (const char *)pErr + pErr->offErrorId;
4116	if (pErr->offMessage)
4117	pszMessage = (const char *)pErr + pErr->offMessage;
4118	fFlags = pErr->fFlags;
4119	}
4120
4121	/*
4122	* Join cause with vmR3SetRuntimeErrorV.
4123	*/
4124	return vmR3SetRuntimeErrorCommonF(pVM, fFlags, pszErrorId, "%s", pszMessage);
4125	}
4126
4127
4128	/**
4129	* Worker for VMSetRuntimeErrorV for doing the job on EMT in ring-3.
4130	*
4131	* @returns VBox status code with modifications, see VMSetRuntimeErrorV.
4132	*
4133	* @param pVM Pointer to the VM.
4134	* @param fFlags The error flags.
4135	* @param pszErrorId Error ID string.
4136	* @param pszMessage The error message residing the MM heap.
4137	*
4138	* @thread EMT
4139	*/
4140	DECLCALLBACK(int) vmR3SetRuntimeError(PVM pVM, uint32_t fFlags, const char pszErrorId, char pszMessage)
4141	{
4142	#if 0 /** @todo make copy of the error msg. */
4143	/*
4144	* Make a copy of the message.
4145	*/
4146	va_list va2;
4147	va_copy(va2, *pVa);
4148	vmSetRuntimeErrorCopy(pVM, fFlags, pszErrorId, pszFormat, va2);
4149	va_end(va2);
4150	#endif
4151
4152	/*
4153	* Join paths with VMR3SetRuntimeErrorWorker.
4154	*/
4155	int rc = vmR3SetRuntimeErrorCommonF(pVM, fFlags, pszErrorId, "%s", pszMessage);
4156	MMR3HeapFree(pszMessage);
4157	return rc;
4158	}
4159
4160
4161	/**
4162	* Worker for VMSetRuntimeErrorV for doing the job on EMT in ring-3.
4163	*
4164	* @returns VBox status code with modifications, see VMSetRuntimeErrorV.
4165	*
4166	* @param pVM Pointer to the VM.
4167	* @param fFlags The error flags.
4168	* @param pszErrorId Error ID string.
4169	* @param pszFormat Format string.
4170	* @param pVa Pointer to the format arguments.
4171	*
4172	* @thread EMT
4173	*/
4174	DECLCALLBACK(int) vmR3SetRuntimeErrorV(PVM pVM, uint32_t fFlags, const char pszErrorId, const char pszFormat, va_list *pVa)
4175	{
4176	/*
4177	* Make a copy of the message.
4178	*/
4179	va_list va2;
4180	va_copy(va2, *pVa);
4181	vmSetRuntimeErrorCopy(pVM, fFlags, pszErrorId, pszFormat, va2);
4182	va_end(va2);
4183
4184	/*
4185	* Join paths with VMR3SetRuntimeErrorWorker.
4186	*/
4187	return vmR3SetRuntimeErrorCommon(pVM, fFlags, pszErrorId, pszFormat, pVa);
4188	}
4189
4190
4191	/**
4192	* Gets the number of runtime errors raised via VMR3SetRuntimeError.
4193	*
4194	* This can be used avoid double error messages.
4195	*
4196	* @returns The runtime error count.
4197	* @param pUVM The user mode VM handle.
4198	*/
4199	VMMR3_INT_DECL(uint32_t) VMR3GetRuntimeErrorCount(PUVM pUVM)
4200	{
4201	return pUVM->vm.s.cRuntimeErrors;
4202	}
4203
4204
4205	/**
4206	* Gets the ID virtual of the virtual CPU associated with the calling thread.
4207	*
4208	* @returns The CPU ID. NIL_VMCPUID if the thread isn't an EMT.
4209	*
4210	* @param pVM Pointer to the VM.
4211	*/
4212	VMMR3_INT_DECL(RTCPUID) VMR3GetVMCPUId(PVM pVM)
4213	{
4214	PUVMCPU pUVCpu = (PUVMCPU)RTTlsGet(pVM->pUVM->vm.s.idxTLS);
4215	return pUVCpu
4216	? pUVCpu->idCpu
4217	: NIL_VMCPUID;
4218	}
4219
4220
4221	/**
4222	* Returns the native handle of the current EMT VMCPU thread.
4223	*
4224	* @returns Handle if this is an EMT thread; NIL_RTNATIVETHREAD otherwise
4225	* @param pVM Pointer to the VM.
4226	* @thread EMT
4227	*/
4228	VMMR3DECL(RTNATIVETHREAD) VMR3GetVMCPUNativeThread(PVM pVM)
4229	{
4230	PUVMCPU pUVCpu = (PUVMCPU)RTTlsGet(pVM->pUVM->vm.s.idxTLS);
4231
4232	if (!pUVCpu)
4233	return NIL_RTNATIVETHREAD;
4234
4235	return pUVCpu->vm.s.NativeThreadEMT;
4236	}
4237
4238
4239	/**
4240	* Returns the native handle of the current EMT VMCPU thread.
4241	*
4242	* @returns Handle if this is an EMT thread; NIL_RTNATIVETHREAD otherwise
4243	* @param pVM Pointer to the VM.
4244	* @thread EMT
4245	*/
4246	VMMR3DECL(RTNATIVETHREAD) VMR3GetVMCPUNativeThreadU(PUVM pUVM)
4247	{
4248	PUVMCPU pUVCpu = (PUVMCPU)RTTlsGet(pUVM->vm.s.idxTLS);
4249
4250	if (!pUVCpu)
4251	return NIL_RTNATIVETHREAD;
4252
4253	return pUVCpu->vm.s.NativeThreadEMT;
4254	}
4255
4256
4257	/**
4258	* Returns the handle of the current EMT VMCPU thread.
4259	*
4260	* @returns Handle if this is an EMT thread; NIL_RTNATIVETHREAD otherwise
4261	* @param pUVM The user mode VM handle.
4262	* @thread EMT
4263	*/
4264	VMMR3DECL(RTTHREAD) VMR3GetVMCPUThread(PUVM pUVM)
4265	{
4266	PUVMCPU pUVCpu = (PUVMCPU)RTTlsGet(pUVM->vm.s.idxTLS);
4267
4268	if (!pUVCpu)
4269	return NIL_RTTHREAD;
4270
4271	return pUVCpu->vm.s.ThreadEMT;
4272	}
4273
4274
4275	/**
4276	* Return the package and core ID of a CPU.
4277	*
4278	* @returns VBOX status code.
4279	* @param pUVM The user mode VM handle.
4280	* @param idCpu Virtual CPU to get the ID from.
4281	* @param pidCpuCore Where to store the core ID of the virtual CPU.
4282	* @param pidCpuPackage Where to store the package ID of the virtual CPU.
4283	*
4284	*/
4285	VMMR3DECL(int) VMR3GetCpuCoreAndPackageIdFromCpuId(PUVM pUVM, VMCPUID idCpu, uint32_t pidCpuCore, uint32_t pidCpuPackage)
4286	{
4287	/*
4288	* Validate input.
4289	*/
4290	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
4291	PVM pVM = pUVM->pVM;
4292	VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
4293	AssertPtrReturn(pidCpuCore, VERR_INVALID_POINTER);
4294	AssertPtrReturn(pidCpuPackage, VERR_INVALID_POINTER);
4295	if (idCpu >= pVM->cCpus)
4296	return VERR_INVALID_CPU_ID;
4297
4298	/*
4299	* Set return values.
4300	*/
4301	#ifdef VBOX_WITH_MULTI_CORE
4302	*pidCpuCore = idCpu;
4303	*pidCpuPackage = 0;
4304	#else
4305	*pidCpuCore = 0;
4306	*pidCpuPackage = idCpu;
4307	#endif
4308
4309	return VINF_SUCCESS;
4310	}
4311
4312
4313	/**
4314	* Worker for VMR3HotUnplugCpu.
4315	*
4316	* @returns VINF_EM_WAIT_SPIP (strict status code).
4317	* @param pVM Pointer to the VM.
4318	* @param idCpu The current CPU.
4319	*/
4320	static DECLCALLBACK(int) vmR3HotUnplugCpu(PVM pVM, VMCPUID idCpu)
4321	{
4322	PVMCPU pVCpu = VMMGetCpuById(pVM, idCpu);
4323	VMCPU_ASSERT_EMT(pVCpu);
4324
4325	/*
4326	* Reset per CPU resources.
4327	*
4328	* Actually only needed for VT-x because the CPU seems to be still in some
4329	* paged mode and startup fails after a new hot plug event. SVM works fine
4330	* even without this.
4331	*/
4332	Log(("vmR3HotUnplugCpu for VCPU %u\n", idCpu));
4333	PGMR3ResetCpu(pVM, pVCpu);
4334	PDMR3ResetCpu(pVCpu);
4335	TRPMR3ResetCpu(pVCpu);
4336	CPUMR3ResetCpu(pVCpu);
4337	EMR3ResetCpu(pVCpu);
4338	HMR3ResetCpu(pVCpu);
4339	return VINF_EM_WAIT_SIPI;
4340	}
4341
4342
4343	/**
4344	* Hot-unplugs a CPU from the guest.
4345	*
4346	* @returns VBox status code.
4347	* @param pUVM The user mode VM handle.
4348	* @param idCpu Virtual CPU to perform the hot unplugging operation on.
4349	*/
4350	VMMR3DECL(int) VMR3HotUnplugCpu(PUVM pUVM, VMCPUID idCpu)
4351	{
4352	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
4353	PVM pVM = pUVM->pVM;
4354	VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
4355	AssertReturn(idCpu < pVM->cCpus, VERR_INVALID_CPU_ID);
4356
4357	/** @todo r=bird: Don't destroy the EMT, it'll break VMMR3EmtRendezvous and
4358	* broadcast requests. Just note down somewhere that the CPU is
4359	* offline and send it to SPIP wait. Maybe modify VMCPUSTATE and push
4360	* it out of the EM loops when offline. */
4361	return VMR3ReqCallNoWaitU(pUVM, idCpu, (PFNRT)vmR3HotUnplugCpu, 2, pVM, idCpu);
4362	}
4363
4364
4365	/**
4366	* Hot-plugs a CPU on the guest.
4367	*
4368	* @returns VBox status code.
4369	* @param pUVM The user mode VM handle.
4370	* @param idCpu Virtual CPU to perform the hot plugging operation on.
4371	*/
4372	VMMR3DECL(int) VMR3HotPlugCpu(PUVM pUVM, VMCPUID idCpu)
4373	{
4374	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
4375	PVM pVM = pUVM->pVM;
4376	VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
4377	AssertReturn(idCpu < pVM->cCpus, VERR_INVALID_CPU_ID);
4378
4379	/** @todo r-bird: Just mark it online and make sure it waits on SPIP. */
4380	return VINF_SUCCESS;
4381	}
4382
4383
4384	/**
4385	* Changes the VMM execution cap.
4386	*
4387	* @returns VBox status code.
4388	* @param pVM Pointer to the VM.
4389	* @param uCpuExecutionCap New CPU execution cap in precent, 1-100. Where
4390	* 100 is max performance (default).
4391	*/
4392	VMMR3DECL(int) VMR3SetCpuExecutionCap(PUVM pUVM, uint32_t uCpuExecutionCap)
4393	{
4394	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
4395	PVM pVM = pUVM->pVM;
4396	VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
4397	AssertReturn(uCpuExecutionCap > 0 && uCpuExecutionCap <= 100, VERR_INVALID_PARAMETER);
4398
4399	Log(("VMR3SetCpuExecutionCap: new priority = %d\n", uCpuExecutionCap));
4400	/* Note: not called from EMT. */
4401	pVM->uCpuExecutionCap = uCpuExecutionCap;
4402	return VINF_SUCCESS;
4403	}
4404

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source: vbox/trunk/src/VBox/VMM/VMMR3/VM.cpp@ 45728

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