VM.cpp@ 54763

Last change on this file since 54763 was 54763, checked in by vboxsync, 10 years ago
PATM,CPUM: Redid the CPUID stuff by calling a patch helper function implemented by CPUM. This eliminates needing to expose CPUM guts to in patches that gets saved. Also reimplemented the lookup as a binary search (for the leaf, not sub-leaf).
Property svn:eol-style set to `native` Property svn:keywords set to `Id Revision`
File size: 161.1 KB

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1	/* $Id: VM.cpp 54763 2015-03-15 03:15:58Z vboxsync $ */
2	/** @file
3	* VM - Virtual Machine
4	*/
5
6	/*
7	* Copyright (C) 2006-2015 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 <VBox/vmm/gim.h>
70	#include "VMInternal.h"
71	#include <VBox/vmm/vm.h>
72	#include <VBox/vmm/uvm.h>
73
74	#include <VBox/sup.h>
75	#if defined(VBOX_WITH_DTRACE_R3) && !defined(VBOX_WITH_NATIVE_DTRACE)
76	# include <VBox/VBoxTpG.h>
77	#endif
78	#include <VBox/dbg.h>
79	#include <VBox/err.h>
80	#include <VBox/param.h>
81	#include <VBox/log.h>
82	#include <iprt/assert.h>
83	#include <iprt/alloc.h>
84	#include <iprt/asm.h>
85	#include <iprt/env.h>
86	#include <iprt/string.h>
87	#include <iprt/time.h>
88	#include <iprt/semaphore.h>
89	#include <iprt/thread.h>
90	#include <iprt/uuid.h>
91
92
93	/*******************************************************************************
94	* Global Variables *
95	*******************************************************************************/
96	/** Pointer to the list of VMs. */
97	static PUVM g_pUVMsHead = NULL;
98
99
100	/*******************************************************************************
101	* Internal Functions *
102	*******************************************************************************/
103	static int vmR3CreateUVM(uint32_t cCpus, PCVMM2USERMETHODS pVmm2UserMethods, PUVM *ppUVM);
104	static int vmR3CreateU(PUVM pUVM, uint32_t cCpus, PFNCFGMCONSTRUCTOR pfnCFGMConstructor, void *pvUserCFGM);
105	static int vmR3ReadBaseConfig(PVM pVM, PUVM pUVM, uint32_t cCpus);
106	static int vmR3InitRing3(PVM pVM, PUVM pUVM);
107	static int vmR3InitRing0(PVM pVM);
108	#ifdef VBOX_WITH_RAW_MODE
109	static int vmR3InitRC(PVM pVM);
110	#endif
111	static int vmR3InitDoCompleted(PVM pVM, VMINITCOMPLETED enmWhat);
112	#ifdef LOG_ENABLED
113	static DECLCALLBACK(size_t) vmR3LogPrefixCallback(PRTLOGGER pLogger, char pchBuf, size_t cchBuf, void pvUser);
114	#endif
115	static void vmR3DestroyUVM(PUVM pUVM, uint32_t cMilliesEMTWait);
116	static void vmR3AtDtor(PVM pVM);
117	static bool vmR3ValidateStateTransition(VMSTATE enmStateOld, VMSTATE enmStateNew);
118	static void vmR3DoAtState(PVM pVM, PUVM pUVM, VMSTATE enmStateNew, VMSTATE enmStateOld);
119	static int vmR3TrySetState(PVM pVM, const char *pszWho, unsigned cTransitions, ...);
120	static void vmR3SetStateLocked(PVM pVM, PUVM pUVM, VMSTATE enmStateNew, VMSTATE enmStateOld);
121	static void vmR3SetState(PVM pVM, VMSTATE enmStateNew, VMSTATE enmStateOld);
122	static int vmR3SetErrorU(PUVM pUVM, int rc, RT_SRC_POS_DECL, const char *pszFormat, ...);
123
124
125	/**
126	* Do global VMM init.
127	*
128	* @returns VBox status code.
129	*/
130	VMMR3DECL(int) VMR3GlobalInit(void)
131	{
132	/*
133	* Only once.
134	*/
135	static bool volatile s_fDone = false;
136	if (s_fDone)
137	return VINF_SUCCESS;
138
139	#if defined(VBOX_WITH_DTRACE_R3) && !defined(VBOX_WITH_NATIVE_DTRACE)
140	SUPR3TracerRegisterModule(~(uintptr_t)0, "VBoxVMM", &g_VTGObjHeader, (uintptr_t)&g_VTGObjHeader,
141	SUP_TRACER_UMOD_FLAGS_SHARED);
142	#endif
143
144	/*
145	* We're done.
146	*/
147	s_fDone = true;
148	return VINF_SUCCESS;
149	}
150
151
152	/**
153	* Creates a virtual machine by calling the supplied configuration constructor.
154	*
155	* On successful returned the VM is powered, i.e. VMR3PowerOn() should be
156	* called to start the execution.
157	*
158	* @returns 0 on success.
159	* @returns VBox error code on failure.
160	* @param cCpus Number of virtual CPUs for the new VM.
161	* @param pVmm2UserMethods An optional method table that the VMM can use
162	* to make the user perform various action, like
163	* for instance state saving.
164	* @param pfnVMAtError Pointer to callback function for setting VM
165	* errors. This was added as an implicit call to
166	* VMR3AtErrorRegister() since there is no way the
167	* caller can get to the VM handle early enough to
168	* do this on its own.
169	* This is called in the context of an EMT.
170	* @param pvUserVM The user argument passed to pfnVMAtError.
171	* @param pfnCFGMConstructor Pointer to callback function for constructing the VM configuration tree.
172	* This is called in the context of an EMT0.
173	* @param pvUserCFGM The user argument passed to pfnCFGMConstructor.
174	* @param ppVM Where to optionally store the 'handle' of the
175	* created VM.
176	* @param ppUVM Where to optionally store the user 'handle' of
177	* the created VM, this includes one reference as
178	* if VMR3RetainUVM() was called. The caller
179	* MUST remember to pass the returned value to
180	* VMR3ReleaseUVM() once done with the handle.
181	*/
182	VMMR3DECL(int) VMR3Create(uint32_t cCpus, PCVMM2USERMETHODS pVmm2UserMethods,
183	PFNVMATERROR pfnVMAtError, void *pvUserVM,
184	PFNCFGMCONSTRUCTOR pfnCFGMConstructor, void *pvUserCFGM,
185	PVM ppVM, PUVM ppUVM)
186	{
187	LogFlow(("VMR3Create: cCpus=%RU32 pVmm2UserMethods=%p pfnVMAtError=%p pvUserVM=%p pfnCFGMConstructor=%p pvUserCFGM=%p ppVM=%p ppUVM=%p\n",
188	cCpus, pVmm2UserMethods, pfnVMAtError, pvUserVM, pfnCFGMConstructor, pvUserCFGM, ppVM, ppUVM));
189
190	if (pVmm2UserMethods)
191	{
192	AssertPtrReturn(pVmm2UserMethods, VERR_INVALID_POINTER);
193	AssertReturn(pVmm2UserMethods->u32Magic == VMM2USERMETHODS_MAGIC, VERR_INVALID_PARAMETER);
194	AssertReturn(pVmm2UserMethods->u32Version == VMM2USERMETHODS_VERSION, VERR_INVALID_PARAMETER);
195	AssertPtrNullReturn(pVmm2UserMethods->pfnSaveState, VERR_INVALID_POINTER);
196	AssertPtrNullReturn(pVmm2UserMethods->pfnNotifyEmtInit, VERR_INVALID_POINTER);
197	AssertPtrNullReturn(pVmm2UserMethods->pfnNotifyEmtTerm, VERR_INVALID_POINTER);
198	AssertPtrNullReturn(pVmm2UserMethods->pfnNotifyPdmtInit, VERR_INVALID_POINTER);
199	AssertPtrNullReturn(pVmm2UserMethods->pfnNotifyPdmtTerm, VERR_INVALID_POINTER);
200	AssertPtrNullReturn(pVmm2UserMethods->pfnNotifyResetTurnedIntoPowerOff, VERR_INVALID_POINTER);
201	AssertReturn(pVmm2UserMethods->u32EndMagic == VMM2USERMETHODS_MAGIC, VERR_INVALID_PARAMETER);
202	}
203	AssertPtrNullReturn(pfnVMAtError, VERR_INVALID_POINTER);
204	AssertPtrNullReturn(pfnCFGMConstructor, VERR_INVALID_POINTER);
205	AssertPtrNullReturn(ppVM, VERR_INVALID_POINTER);
206	AssertPtrNullReturn(ppUVM, VERR_INVALID_POINTER);
207	AssertReturn(ppVM \|\| ppUVM, VERR_INVALID_PARAMETER);
208
209	/*
210	* Because of the current hackiness of the applications
211	* we'll have to initialize global stuff from here.
212	* Later the applications will take care of this in a proper way.
213	*/
214	static bool fGlobalInitDone = false;
215	if (!fGlobalInitDone)
216	{
217	int rc = VMR3GlobalInit();
218	if (RT_FAILURE(rc))
219	return rc;
220	fGlobalInitDone = true;
221	}
222
223	/*
224	* Validate input.
225	*/
226	AssertLogRelMsgReturn(cCpus > 0 && cCpus <= VMM_MAX_CPU_COUNT, ("%RU32\n", cCpus), VERR_TOO_MANY_CPUS);
227
228	/*
229	* Create the UVM so we can register the at-error callback
230	* and consolidate a bit of cleanup code.
231	*/
232	PUVM pUVM = NULL; /* shuts up gcc */
233	int rc = vmR3CreateUVM(cCpus, pVmm2UserMethods, &pUVM);
234	if (RT_FAILURE(rc))
235	return rc;
236	if (pfnVMAtError)
237	rc = VMR3AtErrorRegister(pUVM, pfnVMAtError, pvUserVM);
238	if (RT_SUCCESS(rc))
239	{
240	/*
241	* Initialize the support library creating the session for this VM.
242	*/
243	rc = SUPR3Init(&pUVM->vm.s.pSession);
244	if (RT_SUCCESS(rc))
245	{
246	/*
247	* Call vmR3CreateU in the EMT thread and wait for it to finish.
248	*
249	* Note! VMCPUID_ANY is used here because VMR3ReqQueueU would have trouble
250	* submitting a request to a specific VCPU without a pVM. So, to make
251	* sure init is running on EMT(0), vmR3EmulationThreadWithId makes sure
252	* that only EMT(0) is servicing VMCPUID_ANY requests when pVM is NULL.
253	*/
254	PVMREQ pReq;
255	rc = VMR3ReqCallU(pUVM, VMCPUID_ANY, &pReq, RT_INDEFINITE_WAIT, VMREQFLAGS_VBOX_STATUS,
256	(PFNRT)vmR3CreateU, 4, pUVM, cCpus, pfnCFGMConstructor, pvUserCFGM);
257	if (RT_SUCCESS(rc))
258	{
259	rc = pReq->iStatus;
260	VMR3ReqFree(pReq);
261	if (RT_SUCCESS(rc))
262	{
263	/*
264	* Success!
265	*/
266	if (ppVM)
267	*ppVM = pUVM->pVM;
268	if (ppUVM)
269	{
270	VMR3RetainUVM(pUVM);
271	*ppUVM = pUVM;
272	}
273	LogFlow(("VMR3Create: returns VINF_SUCCESS (pVM=%p, pUVM=%p\n", pUVM->pVM, pUVM));
274	return VINF_SUCCESS;
275	}
276	}
277	else
278	AssertMsgFailed(("VMR3ReqCallU failed rc=%Rrc\n", rc));
279
280	/*
281	* An error occurred during VM creation. Set the error message directly
282	* using the initial callback, as the callback list might not exist yet.
283	*/
284	const char *pszError;
285	switch (rc)
286	{
287	case VERR_VMX_IN_VMX_ROOT_MODE:
288	#ifdef RT_OS_LINUX
289	pszError = N_("VirtualBox can't operate in VMX root mode. "
290	"Please disable the KVM kernel extension, recompile your kernel and reboot");
291	#else
292	pszError = N_("VirtualBox can't operate in VMX root mode. Please close all other virtualization programs.");
293	#endif
294	break;
295
296	#ifndef RT_OS_DARWIN
297	case VERR_HM_CONFIG_MISMATCH:
298	pszError = N_("VT-x/AMD-V is either not available on your host or disabled. "
299	"This hardware extension is required by the VM configuration");
300	break;
301	#endif
302
303	case VERR_SVM_IN_USE:
304	#ifdef RT_OS_LINUX
305	pszError = N_("VirtualBox can't enable the AMD-V extension. "
306	"Please disable the KVM kernel extension, recompile your kernel and reboot");
307	#else
308	pszError = N_("VirtualBox can't enable the AMD-V extension. Please close all other virtualization programs.");
309	#endif
310	break;
311
312	#ifdef RT_OS_LINUX
313	case VERR_SUPDRV_COMPONENT_NOT_FOUND:
314	pszError = N_("One of the kernel modules was not successfully loaded. Make sure "
315	"that no kernel modules from an older version of VirtualBox exist. "
316	"Then try to recompile and reload the kernel modules by executing "
317	"'/etc/init.d/vboxdrv setup' as root");
318	break;
319	#endif
320
321	case VERR_RAW_MODE_INVALID_SMP:
322	pszError = N_("VT-x/AMD-V is either not available on your host or disabled. "
323	"VirtualBox requires this hardware extension to emulate more than one "
324	"guest CPU");
325	break;
326
327	case VERR_SUPDRV_KERNEL_TOO_OLD_FOR_VTX:
328	#ifdef RT_OS_LINUX
329	pszError = N_("Because the host kernel is too old, VirtualBox cannot enable the VT-x "
330	"extension. Either upgrade your kernel to Linux 2.6.13 or later or disable "
331	"the VT-x extension in the VM settings. Note that without VT-x you have "
332	"to reduce the number of guest CPUs to one");
333	#else
334	pszError = N_("Because the host kernel is too old, VirtualBox cannot enable the VT-x "
335	"extension. Either upgrade your kernel or disable the VT-x extension in the "
336	"VM settings. Note that without VT-x you have to reduce the number of guest "
337	"CPUs to one");
338	#endif
339	break;
340
341	case VERR_PDM_DEVICE_NOT_FOUND:
342	pszError = N_("A virtual device is configured in the VM settings but the device "
343	"implementation is missing.\n"
344	"A possible reason for this error is a missing extension pack. Note "
345	"that as of VirtualBox 4.0, certain features (for example USB 2.0 "
346	"support and remote desktop) are only available from an 'extension "
347	"pack' which must be downloaded and installed separately");
348	break;
349
350	case VERR_PCI_PASSTHROUGH_NO_HM:
351	pszError = N_("PCI passthrough requires VT-x/AMD-V");
352	break;
353
354	case VERR_PCI_PASSTHROUGH_NO_NESTED_PAGING:
355	pszError = N_("PCI passthrough requires nested paging");
356	break;
357
358	default:
359	if (VMR3GetErrorCount(pUVM) == 0)
360	pszError = RTErrGetFull(rc);
361	else
362	pszError = NULL; /* already set. */
363	break;
364	}
365	if (pszError)
366	vmR3SetErrorU(pUVM, rc, RT_SRC_POS, pszError, rc);
367	}
368	else
369	{
370	/*
371	* An error occurred at support library initialization time (before the
372	* VM could be created). Set the error message directly using the
373	* initial callback, as the callback list doesn't exist yet.
374	*/
375	const char *pszError;
376	switch (rc)
377	{
378	case VERR_VM_DRIVER_LOAD_ERROR:
379	#ifdef RT_OS_LINUX
380	pszError = N_("VirtualBox kernel driver not loaded. The vboxdrv kernel module "
381	"was either not loaded or /dev/vboxdrv is not set up properly. "
382	"Re-setup the kernel module by executing "
383	"'/etc/init.d/vboxdrv setup' as root");
384	#else
385	pszError = N_("VirtualBox kernel driver not loaded");
386	#endif
387	break;
388	case VERR_VM_DRIVER_OPEN_ERROR:
389	pszError = N_("VirtualBox kernel driver cannot be opened");
390	break;
391	case VERR_VM_DRIVER_NOT_ACCESSIBLE:
392	#ifdef VBOX_WITH_HARDENING
393	/* This should only happen if the executable wasn't hardened - bad code/build. */
394	pszError = N_("VirtualBox kernel driver not accessible, permission problem. "
395	"Re-install VirtualBox. If you are building it yourself, you "
396	"should make sure it installed correctly and that the setuid "
397	"bit is set on the executables calling VMR3Create.");
398	#else
399	/* This should only happen when mixing builds or with the usual /dev/vboxdrv access issues. */
400	# if defined(RT_OS_DARWIN)
401	pszError = N_("VirtualBox KEXT is not accessible, permission problem. "
402	"If you have built VirtualBox yourself, make sure that you do not "
403	"have the vboxdrv KEXT from a different build or installation loaded.");
404	# elif defined(RT_OS_LINUX)
405	pszError = N_("VirtualBox kernel driver is not accessible, permission problem. "
406	"If you have built VirtualBox yourself, make sure that you do "
407	"not have the vboxdrv kernel module from a different build or "
408	"installation loaded. Also, make sure the vboxdrv udev rule gives "
409	"you the permission you need to access the device.");
410	# elif defined(RT_OS_WINDOWS)
411	pszError = N_("VirtualBox kernel driver is not accessible, permission problem.");
412	# else /* solaris, freebsd, ++. */
413	pszError = N_("VirtualBox kernel module is not accessible, permission problem. "
414	"If you have built VirtualBox yourself, make sure that you do "
415	"not have the vboxdrv kernel module from a different install loaded.");
416	# endif
417	#endif
418	break;
419	case VERR_INVALID_HANDLE: /** @todo track down and fix this error. */
420	case VERR_VM_DRIVER_NOT_INSTALLED:
421	#ifdef RT_OS_LINUX
422	pszError = N_("VirtualBox kernel driver not installed. The vboxdrv kernel module "
423	"was either not loaded or /dev/vboxdrv was not created for some "
424	"reason. Re-setup the kernel module by executing "
425	"'/etc/init.d/vboxdrv setup' as root");
426	#else
427	pszError = N_("VirtualBox kernel driver not installed");
428	#endif
429	break;
430	case VERR_NO_MEMORY:
431	pszError = N_("VirtualBox support library out of memory");
432	break;
433	case VERR_VERSION_MISMATCH:
434	case VERR_VM_DRIVER_VERSION_MISMATCH:
435	pszError = N_("The VirtualBox support driver which is running is from a different "
436	"version of VirtualBox. You can correct this by stopping all "
437	"running instances of VirtualBox and reinstalling the software.");
438	break;
439	default:
440	pszError = N_("Unknown error initializing kernel driver");
441	AssertMsgFailed(("Add error message for rc=%d (%Rrc)\n", rc, rc));
442	}
443	vmR3SetErrorU(pUVM, rc, RT_SRC_POS, pszError, rc);
444	}
445	}
446
447	/* cleanup */
448	vmR3DestroyUVM(pUVM, 2000);
449	LogFlow(("VMR3Create: returns %Rrc\n", rc));
450	return rc;
451	}
452
453
454	/**
455	* Creates the UVM.
456	*
457	* This will not initialize the support library even if vmR3DestroyUVM
458	* will terminate that.
459	*
460	* @returns VBox status code.
461	* @param cCpus Number of virtual CPUs
462	* @param pVmm2UserMethods Pointer to the optional VMM -> User method
463	* table.
464	* @param ppUVM Where to store the UVM pointer.
465	*/
466	static int vmR3CreateUVM(uint32_t cCpus, PCVMM2USERMETHODS pVmm2UserMethods, PUVM *ppUVM)
467	{
468	uint32_t i;
469
470	/*
471	* Create and initialize the UVM.
472	*/
473	PUVM pUVM = (PUVM)RTMemPageAllocZ(RT_OFFSETOF(UVM, aCpus[cCpus]));
474	AssertReturn(pUVM, VERR_NO_MEMORY);
475	pUVM->u32Magic = UVM_MAGIC;
476	pUVM->cCpus = cCpus;
477	pUVM->pVmm2UserMethods = pVmm2UserMethods;
478
479	AssertCompile(sizeof(pUVM->vm.s) <= sizeof(pUVM->vm.padding));
480
481	pUVM->vm.s.cUvmRefs = 1;
482	pUVM->vm.s.ppAtStateNext = &pUVM->vm.s.pAtState;
483	pUVM->vm.s.ppAtErrorNext = &pUVM->vm.s.pAtError;
484	pUVM->vm.s.ppAtRuntimeErrorNext = &pUVM->vm.s.pAtRuntimeError;
485
486	pUVM->vm.s.enmHaltMethod = VMHALTMETHOD_BOOTSTRAP;
487	RTUuidClear(&pUVM->vm.s.Uuid);
488
489	/* Initialize the VMCPU array in the UVM. */
490	for (i = 0; i < cCpus; i++)
491	{
492	pUVM->aCpus[i].pUVM = pUVM;
493	pUVM->aCpus[i].idCpu = i;
494	}
495
496	/* Allocate a TLS entry to store the VMINTUSERPERVMCPU pointer. */
497	int rc = RTTlsAllocEx(&pUVM->vm.s.idxTLS, NULL);
498	AssertRC(rc);
499	if (RT_SUCCESS(rc))
500	{
501	/* Allocate a halt method event semaphore for each VCPU. */
502	for (i = 0; i < cCpus; i++)
503	pUVM->aCpus[i].vm.s.EventSemWait = NIL_RTSEMEVENT;
504	for (i = 0; i < cCpus; i++)
505	{
506	rc = RTSemEventCreate(&pUVM->aCpus[i].vm.s.EventSemWait);
507	if (RT_FAILURE(rc))
508	break;
509	}
510	if (RT_SUCCESS(rc))
511	{
512	rc = RTCritSectInit(&pUVM->vm.s.AtStateCritSect);
513	if (RT_SUCCESS(rc))
514	{
515	rc = RTCritSectInit(&pUVM->vm.s.AtErrorCritSect);
516	if (RT_SUCCESS(rc))
517	{
518	/*
519	* Init fundamental (sub-)components - STAM, MMR3Heap and PDMLdr.
520	*/
521	rc = PDMR3InitUVM(pUVM);
522	if (RT_SUCCESS(rc))
523	{
524	rc = STAMR3InitUVM(pUVM);
525	if (RT_SUCCESS(rc))
526	{
527	rc = MMR3InitUVM(pUVM);
528	if (RT_SUCCESS(rc))
529	{
530	/*
531	* Start the emulation threads for all VMCPUs.
532	*/
533	for (i = 0; i < cCpus; i++)
534	{
535	rc = RTThreadCreateF(&pUVM->aCpus[i].vm.s.ThreadEMT, vmR3EmulationThread, &pUVM->aCpus[i],
536	_1M, RTTHREADTYPE_EMULATION, RTTHREADFLAGS_WAITABLE,
537	cCpus > 1 ? "EMT-%u" : "EMT", i);
538	if (RT_FAILURE(rc))
539	break;
540
541	pUVM->aCpus[i].vm.s.NativeThreadEMT = RTThreadGetNative(pUVM->aCpus[i].vm.s.ThreadEMT);
542	}
543
544	if (RT_SUCCESS(rc))
545	{
546	*ppUVM = pUVM;
547	return VINF_SUCCESS;
548	}
549
550	/* bail out. */
551	while (i-- > 0)
552	{
553	/** @todo rainy day: terminate the EMTs. */
554	}
555	MMR3TermUVM(pUVM);
556	}
557	STAMR3TermUVM(pUVM);
558	}
559	PDMR3TermUVM(pUVM);
560	}
561	RTCritSectDelete(&pUVM->vm.s.AtErrorCritSect);
562	}
563	RTCritSectDelete(&pUVM->vm.s.AtStateCritSect);
564	}
565	}
566	for (i = 0; i < cCpus; i++)
567	{
568	RTSemEventDestroy(pUVM->aCpus[i].vm.s.EventSemWait);
569	pUVM->aCpus[i].vm.s.EventSemWait = NIL_RTSEMEVENT;
570	}
571	RTTlsFree(pUVM->vm.s.idxTLS);
572	}
573	RTMemPageFree(pUVM, RT_OFFSETOF(UVM, aCpus[pUVM->cCpus]));
574	return rc;
575	}
576
577
578	/**
579	* Creates and initializes the VM.
580	*
581	* @thread EMT
582	*/
583	static int vmR3CreateU(PUVM pUVM, uint32_t cCpus, PFNCFGMCONSTRUCTOR pfnCFGMConstructor, void *pvUserCFGM)
584	{
585	/*
586	* Load the VMMR0.r0 module so that we can call GVMMR0CreateVM.
587	*/
588	int rc = PDMR3LdrLoadVMMR0U(pUVM);
589	if (RT_FAILURE(rc))
590	{
591	/** @todo we need a cleaner solution for this (VERR_VMX_IN_VMX_ROOT_MODE).
592	* bird: what about moving the message down here? Main picks the first message, right? */
593	if (rc == VERR_VMX_IN_VMX_ROOT_MODE)
594	return rc; /* proper error message set later on */
595	return vmR3SetErrorU(pUVM, rc, RT_SRC_POS, N_("Failed to load VMMR0.r0"));
596	}
597
598	/*
599	* Request GVMM to create a new VM for us.
600	*/
601	GVMMCREATEVMREQ CreateVMReq;
602	CreateVMReq.Hdr.u32Magic = SUPVMMR0REQHDR_MAGIC;
603	CreateVMReq.Hdr.cbReq = sizeof(CreateVMReq);
604	CreateVMReq.pSession = pUVM->vm.s.pSession;
605	CreateVMReq.pVMR0 = NIL_RTR0PTR;
606	CreateVMReq.pVMR3 = NULL;
607	CreateVMReq.cCpus = cCpus;
608	rc = SUPR3CallVMMR0Ex(NIL_RTR0PTR, NIL_VMCPUID, VMMR0_DO_GVMM_CREATE_VM, 0, &CreateVMReq.Hdr);
609	if (RT_SUCCESS(rc))
610	{
611	PVM pVM = pUVM->pVM = CreateVMReq.pVMR3;
612	AssertRelease(VALID_PTR(pVM));
613	AssertRelease(pVM->pVMR0 == CreateVMReq.pVMR0);
614	AssertRelease(pVM->pSession == pUVM->vm.s.pSession);
615	AssertRelease(pVM->cCpus == cCpus);
616	AssertRelease(pVM->uCpuExecutionCap == 100);
617	AssertRelease(pVM->offVMCPU == RT_UOFFSETOF(VM, aCpus));
618	AssertCompileMemberAlignment(VM, cpum, 64);
619	AssertCompileMemberAlignment(VM, tm, 64);
620	AssertCompileMemberAlignment(VM, aCpus, PAGE_SIZE);
621
622	Log(("VMR3Create: Created pUVM=%p pVM=%p pVMR0=%p hSelf=%#x cCpus=%RU32\n",
623	pUVM, pVM, pVM->pVMR0, pVM->hSelf, pVM->cCpus));
624
625	/*
626	* Initialize the VM structure and our internal data (VMINT).
627	*/
628	pVM->pUVM = pUVM;
629
630	for (VMCPUID i = 0; i < pVM->cCpus; i++)
631	{
632	pVM->aCpus[i].pUVCpu = &pUVM->aCpus[i];
633	pVM->aCpus[i].idCpu = i;
634	pVM->aCpus[i].hNativeThread = pUVM->aCpus[i].vm.s.NativeThreadEMT;
635	Assert(pVM->aCpus[i].hNativeThread != NIL_RTNATIVETHREAD);
636	/* hNativeThreadR0 is initialized on EMT registration. */
637	pUVM->aCpus[i].pVCpu = &pVM->aCpus[i];
638	pUVM->aCpus[i].pVM = pVM;
639	}
640
641
642	/*
643	* Init the configuration.
644	*/
645	rc = CFGMR3Init(pVM, pfnCFGMConstructor, pvUserCFGM);
646	if (RT_SUCCESS(rc))
647	{
648	rc = vmR3ReadBaseConfig(pVM, pUVM, cCpus);
649	if (RT_SUCCESS(rc))
650	{
651	/*
652	* Init the ring-3 components and ring-3 per cpu data, finishing it off
653	* by a relocation round (intermediate context finalization will do this).
654	*/
655	rc = vmR3InitRing3(pVM, pUVM);
656	if (RT_SUCCESS(rc))
657	{
658	rc = PGMR3FinalizeMappings(pVM);
659	if (RT_SUCCESS(rc))
660	{
661
662	LogFlow(("Ring-3 init succeeded\n"));
663
664	/*
665	* Init the Ring-0 components.
666	*/
667	rc = vmR3InitRing0(pVM);
668	if (RT_SUCCESS(rc))
669	{
670	/* Relocate again, because some switcher fixups depends on R0 init results. */
671	VMR3Relocate(pVM, 0);
672
673	#ifdef VBOX_WITH_DEBUGGER
674	/*
675	* Init the tcp debugger console if we're building
676	* with debugger support.
677	*/
678	void *pvUser = NULL;
679	rc = DBGCTcpCreate(pUVM, &pvUser);
680	if ( RT_SUCCESS(rc)
681	\|\| rc == VERR_NET_ADDRESS_IN_USE)
682	{
683	pUVM->vm.s.pvDBGC = pvUser;
684	#endif
685	/*
686	* Init the Raw-Mode Context components.
687	*/
688	#ifdef VBOX_WITH_RAW_MODE
689	rc = vmR3InitRC(pVM);
690	if (RT_SUCCESS(rc))
691	#endif
692	{
693	/*
694	* Now we can safely set the VM halt method to default.
695	*/
696	rc = vmR3SetHaltMethodU(pUVM, VMHALTMETHOD_DEFAULT);
697	if (RT_SUCCESS(rc))
698	{
699	/*
700	* Set the state and we're done.
701	*/
702	vmR3SetState(pVM, VMSTATE_CREATED, VMSTATE_CREATING);
703
704	#ifdef LOG_ENABLED
705	RTLogSetCustomPrefixCallback(NULL, vmR3LogPrefixCallback, pUVM);
706	#endif
707	return VINF_SUCCESS;
708	}
709	}
710	#ifdef VBOX_WITH_DEBUGGER
711	DBGCTcpTerminate(pUVM, pUVM->vm.s.pvDBGC);
712	pUVM->vm.s.pvDBGC = NULL;
713	}
714	#endif
715	//..
716	}
717	}
718	vmR3Destroy(pVM);
719	}
720	}
721	//..
722
723	/* Clean CFGM. */
724	int rc2 = CFGMR3Term(pVM);
725	AssertRC(rc2);
726	}
727
728	/*
729	* Do automatic cleanups while the VM structure is still alive and all
730	* references to it are still working.
731	*/
732	PDMR3CritSectBothTerm(pVM);
733
734	/*
735	* Drop all references to VM and the VMCPU structures, then
736	* tell GVMM to destroy the VM.
737	*/
738	pUVM->pVM = NULL;
739	for (VMCPUID i = 0; i < pUVM->cCpus; i++)
740	{
741	pUVM->aCpus[i].pVM = NULL;
742	pUVM->aCpus[i].pVCpu = NULL;
743	}
744	Assert(pUVM->vm.s.enmHaltMethod == VMHALTMETHOD_BOOTSTRAP);
745
746	if (pUVM->cCpus > 1)
747	{
748	/* Poke the other EMTs since they may have stale pVM and pVCpu references
749	on the stack (see VMR3WaitU for instance) if they've been awakened after
750	VM creation. */
751	for (VMCPUID i = 1; i < pUVM->cCpus; i++)
752	VMR3NotifyCpuFFU(&pUVM->aCpus[i], 0);
753	RTThreadSleep(RT_MIN(100 + 25 (pUVM->cCpus - 1), 500)); / very sophisticated */
754	}
755
756	int rc2 = SUPR3CallVMMR0Ex(CreateVMReq.pVMR0, 0 /idCpu/, VMMR0_DO_GVMM_DESTROY_VM, 0, NULL);
757	AssertRC(rc2);
758	}
759	else
760	vmR3SetErrorU(pUVM, rc, RT_SRC_POS, N_("VM creation failed (GVMM)"));
761
762	LogFlow(("vmR3CreateU: returns %Rrc\n", rc));
763	return rc;
764	}
765
766
767	/**
768	* Reads the base configuation from CFGM.
769	*
770	* @returns VBox status code.
771	* @param pVM The cross context VM structure.
772	* @param pUVM The user mode VM structure.
773	* @param cCpus The CPU count given to VMR3Create.
774	*/
775	static int vmR3ReadBaseConfig(PVM pVM, PUVM pUVM, uint32_t cCpus)
776	{
777	int rc;
778	PCFGMNODE pRoot = CFGMR3GetRoot(pVM);
779
780	/*
781	* If executing in fake suplib mode disable RR3 and RR0 in the config.
782	*/
783	const char *psz = RTEnvGet("VBOX_SUPLIB_FAKE");
784	if (psz && !strcmp(psz, "fake"))
785	{
786	CFGMR3RemoveValue(pRoot, "RawR3Enabled");
787	CFGMR3InsertInteger(pRoot, "RawR3Enabled", 0);
788	CFGMR3RemoveValue(pRoot, "RawR0Enabled");
789	CFGMR3InsertInteger(pRoot, "RawR0Enabled", 0);
790	}
791
792	/*
793	* Base EM and HM config properties.
794	*/
795	Assert(pVM->fRecompileUser == false); /* ASSUMES all zeros at this point */
796	#ifdef VBOX_WITH_RAW_MODE
797	bool fEnabled;
798	rc = CFGMR3QueryBoolDef(pRoot, "RawR3Enabled", &fEnabled, false); AssertRCReturn(rc, rc);
799	pVM->fRecompileUser = !fEnabled;
800	rc = CFGMR3QueryBoolDef(pRoot, "RawR0Enabled", &fEnabled, false); AssertRCReturn(rc, rc);
801	pVM->fRecompileSupervisor = !fEnabled;
802	# ifdef VBOX_WITH_RAW_RING1
803	rc = CFGMR3QueryBoolDef(pRoot, "RawR1Enabled", &pVM->fRawRing1Enabled, false);
804	# endif
805	rc = CFGMR3QueryBoolDef(pRoot, "PATMEnabled", &pVM->fPATMEnabled, true); AssertRCReturn(rc, rc);
806	rc = CFGMR3QueryBoolDef(pRoot, "CSAMEnabled", &pVM->fCSAMEnabled, true); AssertRCReturn(rc, rc);
807	rc = CFGMR3QueryBoolDef(pRoot, "HMEnabled", &pVM->fHMEnabled, true); AssertRCReturn(rc, rc);
808	#else
809	pVM->fHMEnabled = true;
810	#endif
811	Assert(!pVM->fHMEnabledFixed);
812	LogRel(("VM: fHMEnabled=%RTbool (configured) fRecompileUser=%RTbool fRecompileSupervisor=%RTbool\n"
813	"VM: fRawRing1Enabled=%RTbool CSAM=%RTbool PATM=%RTbool\n",
814	pVM->fHMEnabled, pVM->fRecompileUser, pVM->fRecompileSupervisor,
815	pVM->fRawRing1Enabled, pVM->fCSAMEnabled, pVM->fPATMEnabled));
816
817
818	/*
819	* Make sure the CPU count in the config data matches.
820	*/
821	uint32_t cCPUsCfg;
822	rc = CFGMR3QueryU32Def(pRoot, "NumCPUs", &cCPUsCfg, 1);
823	AssertLogRelMsgRCReturn(rc, ("Configuration error: Querying \"NumCPUs\" as integer failed, rc=%Rrc\n", rc), rc);
824	AssertLogRelMsgReturn(cCPUsCfg == cCpus,
825	("Configuration error: \"NumCPUs\"=%RU32 and VMR3Create::cCpus=%RU32 does not match!\n",
826	cCPUsCfg, cCpus),
827	VERR_INVALID_PARAMETER);
828
829	/*
830	* Get the CPU execution cap.
831	*/
832	rc = CFGMR3QueryU32Def(pRoot, "CpuExecutionCap", &pVM->uCpuExecutionCap, 100);
833	AssertLogRelMsgRCReturn(rc, ("Configuration error: Querying \"CpuExecutionCap\" as integer failed, rc=%Rrc\n", rc), rc);
834
835	/*
836	* Get the VM name and UUID.
837	*/
838	rc = CFGMR3QueryStringAllocDef(pRoot, "Name", &pUVM->vm.s.pszName, "<unknown>");
839	AssertLogRelMsgRCReturn(rc, ("Configuration error: Querying \"Name\" failed, rc=%Rrc\n", rc), rc);
840
841	rc = CFGMR3QueryBytes(pRoot, "UUID", &pUVM->vm.s.Uuid, sizeof(pUVM->vm.s.Uuid));
842	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
843	rc = VINF_SUCCESS;
844	AssertLogRelMsgRCReturn(rc, ("Configuration error: Querying \"UUID\" failed, rc=%Rrc\n", rc), rc);
845
846	rc = CFGMR3QueryBoolDef(pRoot, "PowerOffInsteadOfReset", &pVM->vm.s.fPowerOffInsteadOfReset, false);
847	AssertLogRelMsgRCReturn(rc, ("Configuration error: Querying \"PowerOffInsteadOfReset\" failed, rc=%Rrc\n", rc), rc);
848
849	return VINF_SUCCESS;
850	}
851
852
853	/**
854	* Register the calling EMT with GVM.
855	*
856	* @returns VBox status code.
857	* @param pVM Pointer to the VM.
858	* @param idCpu The Virtual CPU ID.
859	*/
860	static DECLCALLBACK(int) vmR3RegisterEMT(PVM pVM, VMCPUID idCpu)
861	{
862	Assert(VMMGetCpuId(pVM) == idCpu);
863	int rc = SUPR3CallVMMR0Ex(pVM->pVMR0, idCpu, VMMR0_DO_GVMM_REGISTER_VMCPU, 0, NULL);
864	if (RT_FAILURE(rc))
865	LogRel(("idCpu=%u rc=%Rrc\n", idCpu, rc));
866	return rc;
867	}
868
869
870	/**
871	* Initializes all R3 components of the VM
872	*/
873	static int vmR3InitRing3(PVM pVM, PUVM pUVM)
874	{
875	int rc;
876
877	/*
878	* Register the other EMTs with GVM.
879	*/
880	for (VMCPUID idCpu = 1; idCpu < pVM->cCpus; idCpu++)
881	{
882	rc = VMR3ReqCallWait(pVM, idCpu, (PFNRT)vmR3RegisterEMT, 2, pVM, idCpu);
883	if (RT_FAILURE(rc))
884	return rc;
885	}
886
887	/*
888	* Register statistics.
889	*/
890	STAM_REG(pVM, &pVM->StatTotalInGC, STAMTYPE_PROFILE_ADV, "/PROF/VM/InGC", STAMUNIT_TICKS_PER_CALL, "Profiling the total time spent in GC.");
891	STAM_REG(pVM, &pVM->StatSwitcherToGC, STAMTYPE_PROFILE_ADV, "/PROF/VM/SwitchToGC", STAMUNIT_TICKS_PER_CALL, "Profiling switching to GC.");
892	STAM_REG(pVM, &pVM->StatSwitcherToHC, STAMTYPE_PROFILE_ADV, "/PROF/VM/SwitchToHC", STAMUNIT_TICKS_PER_CALL, "Profiling switching to HC.");
893	STAM_REG(pVM, &pVM->StatSwitcherSaveRegs, STAMTYPE_PROFILE_ADV, "/VM/Switcher/ToGC/SaveRegs", STAMUNIT_TICKS_PER_CALL,"Profiling switching to GC.");
894	STAM_REG(pVM, &pVM->StatSwitcherSysEnter, STAMTYPE_PROFILE_ADV, "/VM/Switcher/ToGC/SysEnter", STAMUNIT_TICKS_PER_CALL,"Profiling switching to GC.");
895	STAM_REG(pVM, &pVM->StatSwitcherDebug, STAMTYPE_PROFILE_ADV, "/VM/Switcher/ToGC/Debug", STAMUNIT_TICKS_PER_CALL,"Profiling switching to GC.");
896	STAM_REG(pVM, &pVM->StatSwitcherCR0, STAMTYPE_PROFILE_ADV, "/VM/Switcher/ToGC/CR0", STAMUNIT_TICKS_PER_CALL, "Profiling switching to GC.");
897	STAM_REG(pVM, &pVM->StatSwitcherCR4, STAMTYPE_PROFILE_ADV, "/VM/Switcher/ToGC/CR4", STAMUNIT_TICKS_PER_CALL, "Profiling switching to GC.");
898	STAM_REG(pVM, &pVM->StatSwitcherLgdt, STAMTYPE_PROFILE_ADV, "/VM/Switcher/ToGC/Lgdt", STAMUNIT_TICKS_PER_CALL, "Profiling switching to GC.");
899	STAM_REG(pVM, &pVM->StatSwitcherLidt, STAMTYPE_PROFILE_ADV, "/VM/Switcher/ToGC/Lidt", STAMUNIT_TICKS_PER_CALL, "Profiling switching to GC.");
900	STAM_REG(pVM, &pVM->StatSwitcherLldt, STAMTYPE_PROFILE_ADV, "/VM/Switcher/ToGC/Lldt", STAMUNIT_TICKS_PER_CALL, "Profiling switching to GC.");
901	STAM_REG(pVM, &pVM->StatSwitcherTSS, STAMTYPE_PROFILE_ADV, "/VM/Switcher/ToGC/TSS", STAMUNIT_TICKS_PER_CALL, "Profiling switching to GC.");
902	STAM_REG(pVM, &pVM->StatSwitcherJmpCR3, STAMTYPE_PROFILE_ADV, "/VM/Switcher/ToGC/JmpCR3", STAMUNIT_TICKS_PER_CALL,"Profiling switching to GC.");
903	STAM_REG(pVM, &pVM->StatSwitcherRstrRegs, STAMTYPE_PROFILE_ADV, "/VM/Switcher/ToGC/RstrRegs", STAMUNIT_TICKS_PER_CALL,"Profiling switching to GC.");
904
905	for (VMCPUID idCpu = 0; idCpu < pVM->cCpus; idCpu++)
906	{
907	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);
908	AssertRC(rc);
909	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);
910	AssertRC(rc);
911	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);
912	AssertRC(rc);
913	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);
914	AssertRC(rc);
915	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);
916	AssertRC(rc);
917	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);
918	AssertRC(rc);
919	}
920
921	STAM_REG(pVM, &pUVM->vm.s.StatReqAllocNew, STAMTYPE_COUNTER, "/VM/Req/AllocNew", STAMUNIT_OCCURENCES, "Number of VMR3ReqAlloc returning a new packet.");
922	STAM_REG(pVM, &pUVM->vm.s.StatReqAllocRaces, STAMTYPE_COUNTER, "/VM/Req/AllocRaces", STAMUNIT_OCCURENCES, "Number of VMR3ReqAlloc causing races.");
923	STAM_REG(pVM, &pUVM->vm.s.StatReqAllocRecycled, STAMTYPE_COUNTER, "/VM/Req/AllocRecycled", STAMUNIT_OCCURENCES, "Number of VMR3ReqAlloc returning a recycled packet.");
924	STAM_REG(pVM, &pUVM->vm.s.StatReqFree, STAMTYPE_COUNTER, "/VM/Req/Free", STAMUNIT_OCCURENCES, "Number of VMR3ReqFree calls.");
925	STAM_REG(pVM, &pUVM->vm.s.StatReqFreeOverflow, STAMTYPE_COUNTER, "/VM/Req/FreeOverflow", STAMUNIT_OCCURENCES, "Number of times the request was actually freed.");
926	STAM_REG(pVM, &pUVM->vm.s.StatReqProcessed, STAMTYPE_COUNTER, "/VM/Req/Processed", STAMUNIT_OCCURENCES, "Number of processed requests (any queue).");
927	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.");
928	STAM_REG(pVM, &pUVM->vm.s.StatReqPushBackRaces, STAMTYPE_COUNTER, "/VM/Req/PushBackRaces", STAMUNIT_OCCURENCES, "Number of push back races.");
929
930	/*
931	* Init all R3 components, the order here might be important.
932	* HM shall be initialized first!
933	*/
934	rc = HMR3Init(pVM);
935	if (RT_SUCCESS(rc))
936	{
937	rc = MMR3Init(pVM);
938	if (RT_SUCCESS(rc))
939	{
940	rc = CPUMR3Init(pVM);
941	if (RT_SUCCESS(rc))
942	{
943	rc = PGMR3Init(pVM);
944	if (RT_SUCCESS(rc))
945	{
946	#ifdef VBOX_WITH_REM
947	rc = REMR3Init(pVM);
948	#endif
949	if (RT_SUCCESS(rc))
950	{
951	rc = MMR3InitPaging(pVM);
952	if (RT_SUCCESS(rc))
953	rc = TMR3Init(pVM);
954	if (RT_SUCCESS(rc))
955	{
956	rc = FTMR3Init(pVM);
957	if (RT_SUCCESS(rc))
958	{
959	rc = VMMR3Init(pVM);
960	if (RT_SUCCESS(rc))
961	{
962	rc = SELMR3Init(pVM);
963	if (RT_SUCCESS(rc))
964	{
965	rc = TRPMR3Init(pVM);
966	if (RT_SUCCESS(rc))
967	{
968	#ifdef VBOX_WITH_RAW_MODE
969	rc = CSAMR3Init(pVM);
970	if (RT_SUCCESS(rc))
971	{
972	rc = PATMR3Init(pVM);
973	if (RT_SUCCESS(rc))
974	{
975	#endif
976	rc = IOMR3Init(pVM);
977	if (RT_SUCCESS(rc))
978	{
979	rc = EMR3Init(pVM);
980	if (RT_SUCCESS(rc))
981	{
982	rc = IEMR3Init(pVM);
983	if (RT_SUCCESS(rc))
984	{
985	rc = DBGFR3Init(pVM);
986	if (RT_SUCCESS(rc))
987	{
988	/* GIM must be init'd before PDM, gimdevR3Construct()
989	requires GIM provider to be setup. */
990	rc = GIMR3Init(pVM);
991	if (RT_SUCCESS(rc))
992	{
993	rc = PDMR3Init(pVM);
994	if (RT_SUCCESS(rc))
995	{
996	rc = PGMR3InitDynMap(pVM);
997	if (RT_SUCCESS(rc))
998	rc = MMR3HyperInitFinalize(pVM);
999	#ifdef VBOX_WITH_RAW_MODE
1000	if (RT_SUCCESS(rc))
1001	rc = PATMR3InitFinalize(pVM);
1002	#endif
1003	if (RT_SUCCESS(rc))
1004	rc = PGMR3InitFinalize(pVM);
1005	if (RT_SUCCESS(rc))
1006	rc = SELMR3InitFinalize(pVM);
1007	if (RT_SUCCESS(rc))
1008	rc = TMR3InitFinalize(pVM);
1009	#ifdef VBOX_WITH_REM
1010	if (RT_SUCCESS(rc))
1011	rc = REMR3InitFinalize(pVM);
1012	#endif
1013	if (RT_SUCCESS(rc))
1014	{
1015	PGMR3MemSetup(pVM, false /fAtReset/);
1016	PDMR3MemSetup(pVM, false /fAtReset/);
1017	}
1018	if (RT_SUCCESS(rc))
1019	rc = vmR3InitDoCompleted(pVM, VMINITCOMPLETED_RING3);
1020	if (RT_SUCCESS(rc))
1021	{
1022	LogFlow(("vmR3InitRing3: returns %Rrc\n", VINF_SUCCESS));
1023	return VINF_SUCCESS;
1024	}
1025
1026	int rc2 = PDMR3Term(pVM);
1027	AssertRC(rc2);
1028	}
1029	int rc2 = GIMR3Term(pVM);
1030	AssertRC(rc2);
1031	}
1032	int rc2 = DBGFR3Term(pVM);
1033	AssertRC(rc2);
1034	}
1035	int rc2 = IEMR3Term(pVM);
1036	AssertRC(rc2);
1037	}
1038	int rc2 = EMR3Term(pVM);
1039	AssertRC(rc2);
1040	}
1041	int rc2 = IOMR3Term(pVM);
1042	AssertRC(rc2);
1043	}
1044	#ifdef VBOX_WITH_RAW_MODE
1045	int rc2 = PATMR3Term(pVM);
1046	AssertRC(rc2);
1047	}
1048	int rc2 = CSAMR3Term(pVM);
1049	AssertRC(rc2);
1050	}
1051	#endif
1052	int rc2 = TRPMR3Term(pVM);
1053	AssertRC(rc2);
1054	}
1055	int rc2 = SELMR3Term(pVM);
1056	AssertRC(rc2);
1057	}
1058	int rc2 = VMMR3Term(pVM);
1059	AssertRC(rc2);
1060	}
1061	int rc2 = FTMR3Term(pVM);
1062	AssertRC(rc2);
1063	}
1064	int rc2 = TMR3Term(pVM);
1065	AssertRC(rc2);
1066	}
1067	#ifdef VBOX_WITH_REM
1068	int rc2 = REMR3Term(pVM);
1069	AssertRC(rc2);
1070	#endif
1071	}
1072	int rc2 = PGMR3Term(pVM);
1073	AssertRC(rc2);
1074	}
1075	//int rc2 = CPUMR3Term(pVM);
1076	//AssertRC(rc2);
1077	}
1078	/* MMR3Term is not called here because it'll kill the heap. */
1079	}
1080	int rc2 = HMR3Term(pVM);
1081	AssertRC(rc2);
1082	}
1083
1084
1085	LogFlow(("vmR3InitRing3: returns %Rrc\n", rc));
1086	return rc;
1087	}
1088
1089
1090	/**
1091	* Initializes all R0 components of the VM
1092	*/
1093	static int vmR3InitRing0(PVM pVM)
1094	{
1095	LogFlow(("vmR3InitRing0:\n"));
1096
1097	/*
1098	* Check for FAKE suplib mode.
1099	*/
1100	int rc = VINF_SUCCESS;
1101	const char *psz = RTEnvGet("VBOX_SUPLIB_FAKE");
1102	if (!psz \|\| strcmp(psz, "fake"))
1103	{
1104	/*
1105	* Call the VMMR0 component and let it do the init.
1106	*/
1107	rc = VMMR3InitR0(pVM);
1108	}
1109	else
1110	Log(("vmR3InitRing0: skipping because of VBOX_SUPLIB_FAKE=fake\n"));
1111
1112	/*
1113	* Do notifications and return.
1114	*/
1115	if (RT_SUCCESS(rc))
1116	rc = vmR3InitDoCompleted(pVM, VMINITCOMPLETED_RING0);
1117	if (RT_SUCCESS(rc))
1118	rc = vmR3InitDoCompleted(pVM, VMINITCOMPLETED_HM);
1119
1120	/** @todo Move this to the VMINITCOMPLETED_HM notification handler. */
1121	if (RT_SUCCESS(rc))
1122	CPUMR3SetHWVirtEx(pVM, HMIsEnabled(pVM));
1123
1124	LogFlow(("vmR3InitRing0: returns %Rrc\n", rc));
1125	return rc;
1126	}
1127
1128
1129	#ifdef VBOX_WITH_RAW_MODE
1130	/**
1131	* Initializes all RC components of the VM
1132	*/
1133	static int vmR3InitRC(PVM pVM)
1134	{
1135	LogFlow(("vmR3InitRC:\n"));
1136
1137	/*
1138	* Check for FAKE suplib mode.
1139	*/
1140	int rc = VINF_SUCCESS;
1141	const char *psz = RTEnvGet("VBOX_SUPLIB_FAKE");
1142	if (!psz \|\| strcmp(psz, "fake"))
1143	{
1144	/*
1145	* Call the VMMR0 component and let it do the init.
1146	*/
1147	rc = VMMR3InitRC(pVM);
1148	}
1149	else
1150	Log(("vmR3InitRC: skipping because of VBOX_SUPLIB_FAKE=fake\n"));
1151
1152	/*
1153	* Do notifications and return.
1154	*/
1155	if (RT_SUCCESS(rc))
1156	rc = vmR3InitDoCompleted(pVM, VMINITCOMPLETED_RC);
1157	LogFlow(("vmR3InitRC: returns %Rrc\n", rc));
1158	return rc;
1159	}
1160	#endif /* VBOX_WITH_RAW_MODE */
1161
1162
1163	/**
1164	* Do init completed notifications.
1165	*
1166	* @returns VBox status code.
1167	* @param pVM Pointer to the VM.
1168	* @param enmWhat What's completed.
1169	*/
1170	static int vmR3InitDoCompleted(PVM pVM, VMINITCOMPLETED enmWhat)
1171	{
1172	int rc = VMMR3InitCompleted(pVM, enmWhat);
1173	if (RT_SUCCESS(rc))
1174	rc = HMR3InitCompleted(pVM, enmWhat);
1175	if (RT_SUCCESS(rc))
1176	rc = PGMR3InitCompleted(pVM, enmWhat); /** @todo Why is this not inside VMMR3InitCompleted()? */
1177	#ifndef VBOX_WITH_RAW_MODE
1178	if (enmWhat == VMINITCOMPLETED_RING3)
1179	{
1180	if (RT_SUCCESS(rc))
1181	rc = SSMR3RegisterStub(pVM, "CSAM", 0);
1182	if (RT_SUCCESS(rc))
1183	rc = SSMR3RegisterStub(pVM, "PATM", 0);
1184	}
1185	#endif
1186	return rc;
1187	}
1188
1189
1190	#ifdef LOG_ENABLED
1191	/**
1192	* Logger callback for inserting a custom prefix.
1193	*
1194	* @returns Number of chars written.
1195	* @param pLogger The logger.
1196	* @param pchBuf The output buffer.
1197	* @param cchBuf The output buffer size.
1198	* @param pvUser Pointer to the UVM structure.
1199	*/
1200	static DECLCALLBACK(size_t) vmR3LogPrefixCallback(PRTLOGGER pLogger, char pchBuf, size_t cchBuf, void pvUser)
1201	{
1202	AssertReturn(cchBuf >= 2, 0);
1203	PUVM pUVM = (PUVM)pvUser;
1204	PUVMCPU pUVCpu = (PUVMCPU)RTTlsGet(pUVM->vm.s.idxTLS);
1205	if (pUVCpu)
1206	{
1207	static const char s_szHex[17] = "0123456789abcdef";
1208	VMCPUID const idCpu = pUVCpu->idCpu;
1209	pchBuf[1] = s_szHex[ idCpu & 15];
1210	pchBuf[0] = s_szHex[(idCpu >> 4) & 15];
1211	}
1212	else
1213	{
1214	pchBuf[0] = 'x';
1215	pchBuf[1] = 'y';
1216	}
1217
1218	NOREF(pLogger);
1219	return 2;
1220	}
1221	#endif /* LOG_ENABLED */
1222
1223
1224	/**
1225	* Calls the relocation functions for all VMM components so they can update
1226	* any GC pointers. When this function is called all the basic VM members
1227	* have been updated and the actual memory relocation have been done
1228	* by the PGM/MM.
1229	*
1230	* This is used both on init and on runtime relocations.
1231	*
1232	* @param pVM Pointer to the VM.
1233	* @param offDelta Relocation delta relative to old location.
1234	*/
1235	VMMR3_INT_DECL(void) VMR3Relocate(PVM pVM, RTGCINTPTR offDelta)
1236	{
1237	LogFlow(("VMR3Relocate: offDelta=%RGv\n", offDelta));
1238
1239	/*
1240	* The order here is very important!
1241	*/
1242	PGMR3Relocate(pVM, offDelta);
1243	PDMR3LdrRelocateU(pVM->pUVM, offDelta);
1244	PGMR3Relocate(pVM, 0); /* Repeat after PDM relocation. */
1245	CPUMR3Relocate(pVM);
1246	HMR3Relocate(pVM);
1247	SELMR3Relocate(pVM);
1248	VMMR3Relocate(pVM, offDelta);
1249	SELMR3Relocate(pVM); /* !hack! fix stack! */
1250	TRPMR3Relocate(pVM, offDelta);
1251	#ifdef VBOX_WITH_RAW_MODE
1252	PATMR3Relocate(pVM, (RTRCINTPTR)offDelta);
1253	CSAMR3Relocate(pVM, offDelta);
1254	#endif
1255	IOMR3Relocate(pVM, offDelta);
1256	EMR3Relocate(pVM);
1257	TMR3Relocate(pVM, offDelta);
1258	IEMR3Relocate(pVM);
1259	DBGFR3Relocate(pVM, offDelta);
1260	PDMR3Relocate(pVM, offDelta);
1261	}
1262
1263
1264	/**
1265	* EMT rendezvous worker for VMR3PowerOn.
1266	*
1267	* @returns VERR_VM_INVALID_VM_STATE or VINF_SUCCESS. (This is a strict return
1268	* code, see FNVMMEMTRENDEZVOUS.)
1269	*
1270	* @param pVM Pointer to the VM.
1271	* @param pVCpu Pointer to the VMCPU of the EMT.
1272	* @param pvUser Ignored.
1273	*/
1274	static DECLCALLBACK(VBOXSTRICTRC) vmR3PowerOn(PVM pVM, PVMCPU pVCpu, void *pvUser)
1275	{
1276	LogFlow(("vmR3PowerOn: pVM=%p pVCpu=%p/#%u\n", pVM, pVCpu, pVCpu->idCpu));
1277	Assert(!pvUser); NOREF(pvUser);
1278
1279	/*
1280	* The first thread thru here tries to change the state. We shouldn't be
1281	* called again if this fails.
1282	*/
1283	if (pVCpu->idCpu == pVM->cCpus - 1)
1284	{
1285	int rc = vmR3TrySetState(pVM, "VMR3PowerOn", 1, VMSTATE_POWERING_ON, VMSTATE_CREATED);
1286	if (RT_FAILURE(rc))
1287	return rc;
1288	}
1289
1290	VMSTATE enmVMState = VMR3GetState(pVM);
1291	AssertMsgReturn(enmVMState == VMSTATE_POWERING_ON,
1292	("%s\n", VMR3GetStateName(enmVMState)),
1293	VERR_VM_UNEXPECTED_UNSTABLE_STATE);
1294
1295	/*
1296	* All EMTs changes their state to started.
1297	*/
1298	VMCPU_SET_STATE(pVCpu, VMCPUSTATE_STARTED);
1299
1300	/*
1301	* EMT(0) is last thru here and it will make the notification calls
1302	* and advance the state.
1303	*/
1304	if (pVCpu->idCpu == 0)
1305	{
1306	PDMR3PowerOn(pVM);
1307	vmR3SetState(pVM, VMSTATE_RUNNING, VMSTATE_POWERING_ON);
1308	}
1309
1310	return VINF_SUCCESS;
1311	}
1312
1313
1314	/**
1315	* Powers on the virtual machine.
1316	*
1317	* @returns VBox status code.
1318	*
1319	* @param pUVM The VM to power on.
1320	*
1321	* @thread Any thread.
1322	* @vmstate Created
1323	* @vmstateto PoweringOn+Running
1324	*/
1325	VMMR3DECL(int) VMR3PowerOn(PUVM pUVM)
1326	{
1327	LogFlow(("VMR3PowerOn: pUVM=%p\n", pUVM));
1328	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
1329	PVM pVM = pUVM->pVM;
1330	VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
1331
1332	/*
1333	* Gather all the EMTs to reduce the init TSC drift and keep
1334	* the state changing APIs a bit uniform.
1335	*/
1336	int rc = VMMR3EmtRendezvous(pVM, VMMEMTRENDEZVOUS_FLAGS_TYPE_DESCENDING \| VMMEMTRENDEZVOUS_FLAGS_STOP_ON_ERROR,
1337	vmR3PowerOn, NULL);
1338	LogFlow(("VMR3PowerOn: returns %Rrc\n", rc));
1339	return rc;
1340	}
1341
1342
1343	/**
1344	* Does the suspend notifications.
1345	*
1346	* @param pVM Pointer to the VM.
1347	* @thread EMT(0)
1348	*/
1349	static void vmR3SuspendDoWork(PVM pVM)
1350	{
1351	PDMR3Suspend(pVM);
1352	}
1353
1354
1355	/**
1356	* EMT rendezvous worker for VMR3Suspend.
1357	*
1358	* @returns VERR_VM_INVALID_VM_STATE or VINF_EM_SUSPEND. (This is a strict
1359	* return code, see FNVMMEMTRENDEZVOUS.)
1360	*
1361	* @param pVM Pointer to the VM.
1362	* @param pVCpu Pointer to the VMCPU of the EMT.
1363	* @param pvUser Ignored.
1364	*/
1365	static DECLCALLBACK(VBOXSTRICTRC) vmR3Suspend(PVM pVM, PVMCPU pVCpu, void *pvUser)
1366	{
1367	VMSUSPENDREASON enmReason = (VMSUSPENDREASON)(uintptr_t)pvUser;
1368	LogFlow(("vmR3Suspend: pVM=%p pVCpu=%p/#%u enmReason=%d\n", pVM, pVCpu, pVCpu->idCpu, enmReason));
1369
1370	/*
1371	* The first EMT switches the state to suspending. If this fails because
1372	* something was racing us in one way or the other, there will be no more
1373	* calls and thus the state assertion below is not going to annoy anyone.
1374	*/
1375	if (pVCpu->idCpu == pVM->cCpus - 1)
1376	{
1377	int rc = vmR3TrySetState(pVM, "VMR3Suspend", 2,
1378	VMSTATE_SUSPENDING, VMSTATE_RUNNING,
1379	VMSTATE_SUSPENDING_EXT_LS, VMSTATE_RUNNING_LS);
1380	if (RT_FAILURE(rc))
1381	return rc;
1382	pVM->pUVM->vm.s.enmSuspendReason = enmReason;
1383	}
1384
1385	VMSTATE enmVMState = VMR3GetState(pVM);
1386	AssertMsgReturn( enmVMState == VMSTATE_SUSPENDING
1387	\|\| enmVMState == VMSTATE_SUSPENDING_EXT_LS,
1388	("%s\n", VMR3GetStateName(enmVMState)),
1389	VERR_VM_UNEXPECTED_UNSTABLE_STATE);
1390
1391	/*
1392	* EMT(0) does the actually suspending after all the other CPUs have
1393	* been thru here.
1394	*/
1395	if (pVCpu->idCpu == 0)
1396	{
1397	vmR3SuspendDoWork(pVM);
1398
1399	int rc = vmR3TrySetState(pVM, "VMR3Suspend", 2,
1400	VMSTATE_SUSPENDED, VMSTATE_SUSPENDING,
1401	VMSTATE_SUSPENDED_EXT_LS, VMSTATE_SUSPENDING_EXT_LS);
1402	if (RT_FAILURE(rc))
1403	return VERR_VM_UNEXPECTED_UNSTABLE_STATE;
1404	}
1405
1406	return VINF_EM_SUSPEND;
1407	}
1408
1409
1410	/**
1411	* Suspends a running VM.
1412	*
1413	* @returns VBox status code. When called on EMT, this will be a strict status
1414	* code that has to be propagated up the call stack.
1415	*
1416	* @param pUVM The VM to suspend.
1417	* @param enmReason The reason for suspending.
1418	*
1419	* @thread Any thread.
1420	* @vmstate Running or RunningLS
1421	* @vmstateto Suspending + Suspended or SuspendingExtLS + SuspendedExtLS
1422	*/
1423	VMMR3DECL(int) VMR3Suspend(PUVM pUVM, VMSUSPENDREASON enmReason)
1424	{
1425	LogFlow(("VMR3Suspend: pUVM=%p\n", pUVM));
1426	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
1427	AssertReturn(enmReason > VMSUSPENDREASON_INVALID && enmReason < VMSUSPENDREASON_END, VERR_INVALID_PARAMETER);
1428
1429	/*
1430	* Gather all the EMTs to make sure there are no races before
1431	* changing the VM state.
1432	*/
1433	int rc = VMMR3EmtRendezvous(pUVM->pVM, VMMEMTRENDEZVOUS_FLAGS_TYPE_DESCENDING \| VMMEMTRENDEZVOUS_FLAGS_STOP_ON_ERROR,
1434	vmR3Suspend, (void *)(uintptr_t)enmReason);
1435	LogFlow(("VMR3Suspend: returns %Rrc\n", rc));
1436	return rc;
1437	}
1438
1439
1440	/**
1441	* Retrieves the reason for the most recent suspend.
1442	*
1443	* @returns Suspend reason. VMSUSPENDREASON_INVALID if no suspend has been done
1444	* or the handle is invalid.
1445	* @param pUVM The user mode VM handle.
1446	*/
1447	VMMR3DECL(VMSUSPENDREASON) VMR3GetSuspendReason(PUVM pUVM)
1448	{
1449	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VMSUSPENDREASON_INVALID);
1450	return pUVM->vm.s.enmSuspendReason;
1451	}
1452
1453
1454	/**
1455	* EMT rendezvous worker for VMR3Resume.
1456	*
1457	* @returns VERR_VM_INVALID_VM_STATE or VINF_EM_RESUME. (This is a strict
1458	* return code, see FNVMMEMTRENDEZVOUS.)
1459	*
1460	* @param pVM Pointer to the VM.
1461	* @param pVCpu Pointer to the VMCPU of the EMT.
1462	* @param pvUser Reason.
1463	*/
1464	static DECLCALLBACK(VBOXSTRICTRC) vmR3Resume(PVM pVM, PVMCPU pVCpu, void *pvUser)
1465	{
1466	VMRESUMEREASON enmReason = (VMRESUMEREASON)(uintptr_t)pvUser;
1467	LogFlow(("vmR3Resume: pVM=%p pVCpu=%p/#%u enmReason=%d\n", pVM, pVCpu, pVCpu->idCpu, enmReason));
1468
1469	/*
1470	* The first thread thru here tries to change the state. We shouldn't be
1471	* called again if this fails.
1472	*/
1473	if (pVCpu->idCpu == pVM->cCpus - 1)
1474	{
1475	int rc = vmR3TrySetState(pVM, "VMR3Resume", 1, VMSTATE_RESUMING, VMSTATE_SUSPENDED);
1476	if (RT_FAILURE(rc))
1477	return rc;
1478	pVM->pUVM->vm.s.enmResumeReason = enmReason;
1479	}
1480
1481	VMSTATE enmVMState = VMR3GetState(pVM);
1482	AssertMsgReturn(enmVMState == VMSTATE_RESUMING,
1483	("%s\n", VMR3GetStateName(enmVMState)),
1484	VERR_VM_UNEXPECTED_UNSTABLE_STATE);
1485
1486	#if 0
1487	/*
1488	* All EMTs changes their state to started.
1489	*/
1490	VMCPU_SET_STATE(pVCpu, VMCPUSTATE_STARTED);
1491	#endif
1492
1493	/*
1494	* EMT(0) is last thru here and it will make the notification calls
1495	* and advance the state.
1496	*/
1497	if (pVCpu->idCpu == 0)
1498	{
1499	PDMR3Resume(pVM);
1500	vmR3SetState(pVM, VMSTATE_RUNNING, VMSTATE_RESUMING);
1501	pVM->vm.s.fTeleportedAndNotFullyResumedYet = false;
1502	}
1503
1504	return VINF_EM_RESUME;
1505	}
1506
1507
1508	/**
1509	* Resume VM execution.
1510	*
1511	* @returns VBox status code. When called on EMT, this will be a strict status
1512	* code that has to be propagated up the call stack.
1513	*
1514	* @param pVM The VM to resume.
1515	* @param enmReason The reason we're resuming.
1516	*
1517	* @thread Any thread.
1518	* @vmstate Suspended
1519	* @vmstateto Running
1520	*/
1521	VMMR3DECL(int) VMR3Resume(PUVM pUVM, VMRESUMEREASON enmReason)
1522	{
1523	LogFlow(("VMR3Resume: pUVM=%p\n", pUVM));
1524	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
1525	PVM pVM = pUVM->pVM;
1526	VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
1527	AssertReturn(enmReason > VMRESUMEREASON_INVALID && enmReason < VMRESUMEREASON_END, VERR_INVALID_PARAMETER);
1528
1529	/*
1530	* Gather all the EMTs to make sure there are no races before
1531	* changing the VM state.
1532	*/
1533	int rc = VMMR3EmtRendezvous(pVM, VMMEMTRENDEZVOUS_FLAGS_TYPE_DESCENDING \| VMMEMTRENDEZVOUS_FLAGS_STOP_ON_ERROR,
1534	vmR3Resume, (void *)(uintptr_t)enmReason);
1535	LogFlow(("VMR3Resume: returns %Rrc\n", rc));
1536	return rc;
1537	}
1538
1539
1540	/**
1541	* Retrieves the reason for the most recent resume.
1542	*
1543	* @returns Resume reason. VMRESUMEREASON_INVALID if no suspend has been
1544	* done or the handle is invalid.
1545	* @param pUVM The user mode VM handle.
1546	*/
1547	VMMR3DECL(VMRESUMEREASON) VMR3GetResumeReason(PUVM pUVM)
1548	{
1549	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VMRESUMEREASON_INVALID);
1550	return pUVM->vm.s.enmResumeReason;
1551	}
1552
1553
1554	/**
1555	* EMT rendezvous worker for VMR3Save and VMR3Teleport that suspends the VM
1556	* after the live step has been completed.
1557	*
1558	* @returns VERR_VM_INVALID_VM_STATE or VINF_EM_RESUME. (This is a strict
1559	* return code, see FNVMMEMTRENDEZVOUS.)
1560	*
1561	* @param pVM Pointer to the VM.
1562	* @param pVCpu Pointer to the VMCPU of the EMT.
1563	* @param pvUser The pfSuspended argument of vmR3SaveTeleport.
1564	*/
1565	static DECLCALLBACK(VBOXSTRICTRC) vmR3LiveDoSuspend(PVM pVM, PVMCPU pVCpu, void *pvUser)
1566	{
1567	LogFlow(("vmR3LiveDoSuspend: pVM=%p pVCpu=%p/#%u\n", pVM, pVCpu, pVCpu->idCpu));
1568	bool pfSuspended = (bool )pvUser;
1569
1570	/*
1571	* The first thread thru here tries to change the state. We shouldn't be
1572	* called again if this fails.
1573	*/
1574	if (pVCpu->idCpu == pVM->cCpus - 1U)
1575	{
1576	PUVM pUVM = pVM->pUVM;
1577	int rc;
1578
1579	RTCritSectEnter(&pUVM->vm.s.AtStateCritSect);
1580	VMSTATE enmVMState = pVM->enmVMState;
1581	switch (enmVMState)
1582	{
1583	case VMSTATE_RUNNING_LS:
1584	vmR3SetStateLocked(pVM, pUVM, VMSTATE_SUSPENDING_LS, VMSTATE_RUNNING_LS);
1585	rc = VINF_SUCCESS;
1586	break;
1587
1588	case VMSTATE_SUSPENDED_EXT_LS:
1589	case VMSTATE_SUSPENDED_LS: /* (via reset) */
1590	rc = VINF_SUCCESS;
1591	break;
1592
1593	case VMSTATE_DEBUGGING_LS:
1594	rc = VERR_TRY_AGAIN;
1595	break;
1596
1597	case VMSTATE_OFF_LS:
1598	vmR3SetStateLocked(pVM, pUVM, VMSTATE_OFF, VMSTATE_OFF_LS);
1599	rc = VERR_SSM_LIVE_POWERED_OFF;
1600	break;
1601
1602	case VMSTATE_FATAL_ERROR_LS:
1603	vmR3SetStateLocked(pVM, pUVM, VMSTATE_FATAL_ERROR, VMSTATE_FATAL_ERROR_LS);
1604	rc = VERR_SSM_LIVE_FATAL_ERROR;
1605	break;
1606
1607	case VMSTATE_GURU_MEDITATION_LS:
1608	vmR3SetStateLocked(pVM, pUVM, VMSTATE_GURU_MEDITATION, VMSTATE_GURU_MEDITATION_LS);
1609	rc = VERR_SSM_LIVE_GURU_MEDITATION;
1610	break;
1611
1612	case VMSTATE_POWERING_OFF_LS:
1613	case VMSTATE_SUSPENDING_EXT_LS:
1614	case VMSTATE_RESETTING_LS:
1615	default:
1616	AssertMsgFailed(("%s\n", VMR3GetStateName(enmVMState)));
1617	rc = VERR_VM_UNEXPECTED_VM_STATE;
1618	break;
1619	}
1620	RTCritSectLeave(&pUVM->vm.s.AtStateCritSect);
1621	if (RT_FAILURE(rc))
1622	{
1623	LogFlow(("vmR3LiveDoSuspend: returns %Rrc (state was %s)\n", rc, VMR3GetStateName(enmVMState)));
1624	return rc;
1625	}
1626	}
1627
1628	VMSTATE enmVMState = VMR3GetState(pVM);
1629	AssertMsgReturn(enmVMState == VMSTATE_SUSPENDING_LS,
1630	("%s\n", VMR3GetStateName(enmVMState)),
1631	VERR_VM_UNEXPECTED_UNSTABLE_STATE);
1632
1633	/*
1634	* Only EMT(0) have work to do since it's last thru here.
1635	*/
1636	if (pVCpu->idCpu == 0)
1637	{
1638	vmR3SuspendDoWork(pVM);
1639	int rc = vmR3TrySetState(pVM, "VMR3Suspend", 1,
1640	VMSTATE_SUSPENDED_LS, VMSTATE_SUSPENDING_LS);
1641	if (RT_FAILURE(rc))
1642	return VERR_VM_UNEXPECTED_UNSTABLE_STATE;
1643
1644	*pfSuspended = true;
1645	}
1646
1647	return VINF_EM_SUSPEND;
1648	}
1649
1650
1651	/**
1652	* EMT rendezvous worker that VMR3Save and VMR3Teleport uses to clean up a
1653	* SSMR3LiveDoStep1 failure.
1654	*
1655	* Doing this as a rendezvous operation avoids all annoying transition
1656	* states.
1657	*
1658	* @returns VERR_VM_INVALID_VM_STATE, VINF_SUCCESS or some specific VERR_SSM_*
1659	* status code. (This is a strict return code, see FNVMMEMTRENDEZVOUS.)
1660	*
1661	* @param pVM Pointer to the VM.
1662	* @param pVCpu Pointer to the VMCPU of the EMT.
1663	* @param pvUser The pfSuspended argument of vmR3SaveTeleport.
1664	*/
1665	static DECLCALLBACK(VBOXSTRICTRC) vmR3LiveDoStep1Cleanup(PVM pVM, PVMCPU pVCpu, void *pvUser)
1666	{
1667	LogFlow(("vmR3LiveDoStep1Cleanup: pVM=%p pVCpu=%p/#%u\n", pVM, pVCpu, pVCpu->idCpu));
1668	bool pfSuspended = (bool )pvUser;
1669	NOREF(pVCpu);
1670
1671	int rc = vmR3TrySetState(pVM, "vmR3LiveDoStep1Cleanup", 8,
1672	VMSTATE_OFF, VMSTATE_OFF_LS, /* 1 */
1673	VMSTATE_FATAL_ERROR, VMSTATE_FATAL_ERROR_LS, /* 2 */
1674	VMSTATE_GURU_MEDITATION, VMSTATE_GURU_MEDITATION_LS, /* 3 */
1675	VMSTATE_SUSPENDED, VMSTATE_SUSPENDED_LS, /* 4 */
1676	VMSTATE_SUSPENDED, VMSTATE_SAVING,
1677	VMSTATE_SUSPENDED, VMSTATE_SUSPENDED_EXT_LS,
1678	VMSTATE_RUNNING, VMSTATE_RUNNING_LS,
1679	VMSTATE_DEBUGGING, VMSTATE_DEBUGGING_LS);
1680	if (rc == 1)
1681	rc = VERR_SSM_LIVE_POWERED_OFF;
1682	else if (rc == 2)
1683	rc = VERR_SSM_LIVE_FATAL_ERROR;
1684	else if (rc == 3)
1685	rc = VERR_SSM_LIVE_GURU_MEDITATION;
1686	else if (rc == 4)
1687	{
1688	*pfSuspended = true;
1689	rc = VINF_SUCCESS;
1690	}
1691	else if (rc > 0)
1692	rc = VINF_SUCCESS;
1693	return rc;
1694	}
1695
1696
1697	/**
1698	* EMT(0) worker for VMR3Save and VMR3Teleport that completes the live save.
1699	*
1700	* @returns VBox status code.
1701	* @retval VINF_SSM_LIVE_SUSPENDED if VMR3Suspend was called.
1702	*
1703	* @param pVM Pointer to the VM.
1704	* @param pSSM The handle of saved state operation.
1705	*
1706	* @thread EMT(0)
1707	*/
1708	static DECLCALLBACK(int) vmR3LiveDoStep2(PVM pVM, PSSMHANDLE pSSM)
1709	{
1710	LogFlow(("vmR3LiveDoStep2: pVM=%p pSSM=%p\n", pVM, pSSM));
1711	VM_ASSERT_EMT0(pVM);
1712
1713	/*
1714	* Advance the state and mark if VMR3Suspend was called.
1715	*/
1716	int rc = VINF_SUCCESS;
1717	VMSTATE enmVMState = VMR3GetState(pVM);
1718	if (enmVMState == VMSTATE_SUSPENDED_LS)
1719	vmR3SetState(pVM, VMSTATE_SAVING, VMSTATE_SUSPENDED_LS);
1720	else
1721	{
1722	if (enmVMState != VMSTATE_SAVING)
1723	vmR3SetState(pVM, VMSTATE_SAVING, VMSTATE_SUSPENDED_EXT_LS);
1724	rc = VINF_SSM_LIVE_SUSPENDED;
1725	}
1726
1727	/*
1728	* Finish up and release the handle. Careful with the status codes.
1729	*/
1730	int rc2 = SSMR3LiveDoStep2(pSSM);
1731	if (rc == VINF_SUCCESS \|\| (RT_FAILURE(rc2) && RT_SUCCESS(rc)))
1732	rc = rc2;
1733
1734	rc2 = SSMR3LiveDone(pSSM);
1735	if (rc == VINF_SUCCESS \|\| (RT_FAILURE(rc2) && RT_SUCCESS(rc)))
1736	rc = rc2;
1737
1738	/*
1739	* Advance to the final state and return.
1740	*/
1741	vmR3SetState(pVM, VMSTATE_SUSPENDED, VMSTATE_SAVING);
1742	Assert(rc > VINF_EM_LAST \|\| rc < VINF_EM_FIRST);
1743	return rc;
1744	}
1745
1746
1747	/**
1748	* Worker for vmR3SaveTeleport that validates the state and calls SSMR3Save or
1749	* SSMR3LiveSave.
1750	*
1751	* @returns VBox status code.
1752	*
1753	* @param pVM Pointer to the VM.
1754	* @param cMsMaxDowntime The maximum downtime given as milliseconds.
1755	* @param pszFilename The name of the file. NULL if pStreamOps is used.
1756	* @param pStreamOps The stream methods. NULL if pszFilename is used.
1757	* @param pvStreamOpsUser The user argument to the stream methods.
1758	* @param enmAfter What to do afterwards.
1759	* @param pfnProgress Progress callback. Optional.
1760	* @param pvProgressUser User argument for the progress callback.
1761	* @param ppSSM Where to return the saved state handle in case of a
1762	* live snapshot scenario.
1763	* @param fSkipStateChanges Set if we're supposed to skip state changes (FTM delta case)
1764	*
1765	* @thread EMT
1766	*/
1767	static DECLCALLBACK(int) vmR3Save(PVM pVM, uint32_t cMsMaxDowntime, const char pszFilename, PCSSMSTRMOPS pStreamOps, void pvStreamOpsUser,
1768	SSMAFTER enmAfter, PFNVMPROGRESS pfnProgress, void pvProgressUser, PSSMHANDLE ppSSM,
1769	bool fSkipStateChanges)
1770	{
1771	int rc = VINF_SUCCESS;
1772
1773	LogFlow(("vmR3Save: pVM=%p cMsMaxDowntime=%u pszFilename=%p:{%s} pStreamOps=%p pvStreamOpsUser=%p enmAfter=%d pfnProgress=%p pvProgressUser=%p ppSSM=%p\n",
1774	pVM, cMsMaxDowntime, pszFilename, pszFilename, pStreamOps, pvStreamOpsUser, enmAfter, pfnProgress, pvProgressUser, ppSSM));
1775
1776	/*
1777	* Validate input.
1778	*/
1779	AssertPtrNull(pszFilename);
1780	AssertPtrNull(pStreamOps);
1781	AssertPtr(pVM);
1782	Assert( enmAfter == SSMAFTER_DESTROY
1783	\|\| enmAfter == SSMAFTER_CONTINUE
1784	\|\| enmAfter == SSMAFTER_TELEPORT);
1785	AssertPtr(ppSSM);
1786	*ppSSM = NULL;
1787
1788	/*
1789	* Change the state and perform/start the saving.
1790	*/
1791	if (!fSkipStateChanges)
1792	{
1793	rc = vmR3TrySetState(pVM, "VMR3Save", 2,
1794	VMSTATE_SAVING, VMSTATE_SUSPENDED,
1795	VMSTATE_RUNNING_LS, VMSTATE_RUNNING);
1796	}
1797	else
1798	{
1799	Assert(enmAfter != SSMAFTER_TELEPORT);
1800	rc = 1;
1801	}
1802
1803	if (rc == 1 && enmAfter != SSMAFTER_TELEPORT)
1804	{
1805	rc = SSMR3Save(pVM, pszFilename, pStreamOps, pvStreamOpsUser, enmAfter, pfnProgress, pvProgressUser);
1806	if (!fSkipStateChanges)
1807	vmR3SetState(pVM, VMSTATE_SUSPENDED, VMSTATE_SAVING);
1808	}
1809	else if (rc == 2 \|\| enmAfter == SSMAFTER_TELEPORT)
1810	{
1811	Assert(!fSkipStateChanges);
1812	if (enmAfter == SSMAFTER_TELEPORT)
1813	pVM->vm.s.fTeleportedAndNotFullyResumedYet = true;
1814	rc = SSMR3LiveSave(pVM, cMsMaxDowntime, pszFilename, pStreamOps, pvStreamOpsUser,
1815	enmAfter, pfnProgress, pvProgressUser, ppSSM);
1816	/* (We're not subject to cancellation just yet.) */
1817	}
1818	else
1819	Assert(RT_FAILURE(rc));
1820	return rc;
1821	}
1822
1823
1824	/**
1825	* Common worker for VMR3Save and VMR3Teleport.
1826	*
1827	* @returns VBox status code.
1828	*
1829	* @param pVM Pointer to the VM.
1830	* @param cMsMaxDowntime The maximum downtime given as milliseconds.
1831	* @param pszFilename The name of the file. NULL if pStreamOps is used.
1832	* @param pStreamOps The stream methods. NULL if pszFilename is used.
1833	* @param pvStreamOpsUser The user argument to the stream methods.
1834	* @param enmAfter What to do afterwards.
1835	* @param pfnProgress Progress callback. Optional.
1836	* @param pvProgressUser User argument for the progress callback.
1837	* @param pfSuspended Set if we suspended the VM.
1838	* @param fSkipStateChanges Set if we're supposed to skip state changes (FTM delta case)
1839	*
1840	* @thread Non-EMT
1841	*/
1842	static int vmR3SaveTeleport(PVM pVM, uint32_t cMsMaxDowntime,
1843	const char pszFilename, PCSSMSTRMOPS pStreamOps, void pvStreamOpsUser,
1844	SSMAFTER enmAfter, PFNVMPROGRESS pfnProgress, void pvProgressUser, bool pfSuspended,
1845	bool fSkipStateChanges)
1846	{
1847	/*
1848	* Request the operation in EMT(0).
1849	*/
1850	PSSMHANDLE pSSM;
1851	int rc = VMR3ReqCallWait(pVM, 0 /idDstCpu/,
1852	(PFNRT)vmR3Save, 10, pVM, cMsMaxDowntime, pszFilename, pStreamOps, pvStreamOpsUser,
1853	enmAfter, pfnProgress, pvProgressUser, &pSSM, fSkipStateChanges);
1854	if ( RT_SUCCESS(rc)
1855	&& pSSM)
1856	{
1857	Assert(!fSkipStateChanges);
1858
1859	/*
1860	* Live snapshot.
1861	*
1862	* The state handling here is kind of tricky, doing it on EMT(0) helps
1863	* a bit. See the VMSTATE diagram for details.
1864	*/
1865	rc = SSMR3LiveDoStep1(pSSM);
1866	if (RT_SUCCESS(rc))
1867	{
1868	if (VMR3GetState(pVM) != VMSTATE_SAVING)
1869	for (;;)
1870	{
1871	/* Try suspend the VM. */
1872	rc = VMMR3EmtRendezvous(pVM, VMMEMTRENDEZVOUS_FLAGS_TYPE_DESCENDING \| VMMEMTRENDEZVOUS_FLAGS_STOP_ON_ERROR,
1873	vmR3LiveDoSuspend, pfSuspended);
1874	if (rc != VERR_TRY_AGAIN)
1875	break;
1876
1877	/* Wait for the state to change. */
1878	RTThreadSleep(250); /** @todo Live Migration: fix this polling wait by some smart use of multiple release event semaphores.. */
1879	}
1880	if (RT_SUCCESS(rc))
1881	rc = VMR3ReqCallWait(pVM, 0 /idDstCpu/, (PFNRT)vmR3LiveDoStep2, 2, pVM, pSSM);
1882	else
1883	{
1884	int rc2 = VMR3ReqCallWait(pVM, 0 /idDstCpu/, (PFNRT)SSMR3LiveDone, 1, pSSM);
1885	AssertMsg(rc2 == rc, ("%Rrc != %Rrc\n", rc2, rc)); NOREF(rc2);
1886	}
1887	}
1888	else
1889	{
1890	int rc2 = VMR3ReqCallWait(pVM, 0 /idDstCpu/, (PFNRT)SSMR3LiveDone, 1, pSSM);
1891	AssertMsg(rc2 == rc, ("%Rrc != %Rrc\n", rc2, rc));
1892
1893	rc2 = VMMR3EmtRendezvous(pVM, VMMEMTRENDEZVOUS_FLAGS_TYPE_ONCE, vmR3LiveDoStep1Cleanup, pfSuspended);
1894	if (RT_FAILURE(rc2) && rc == VERR_SSM_CANCELLED)
1895	rc = rc2;
1896	}
1897	}
1898
1899	return rc;
1900	}
1901
1902
1903	/**
1904	* Save current VM state.
1905	*
1906	* Can be used for both saving the state and creating snapshots.
1907	*
1908	* When called for a VM in the Running state, the saved state is created live
1909	* and the VM is only suspended when the final part of the saving is preformed.
1910	* The VM state will not be restored to Running in this case and it's up to the
1911	* caller to call VMR3Resume if this is desirable. (The rational is that the
1912	* caller probably wish to reconfigure the disks before resuming the VM.)
1913	*
1914	* @returns VBox status code.
1915	*
1916	* @param pUVM The VM which state should be saved.
1917	* @param pszFilename The name of the save state file.
1918	* @param pStreamOps The stream methods.
1919	* @param pvStreamOpsUser The user argument to the stream methods.
1920	* @param fContinueAfterwards Whether continue execution afterwards or not.
1921	* When in doubt, set this to true.
1922	* @param pfnProgress Progress callback. Optional.
1923	* @param pvUser User argument for the progress callback.
1924	* @param pfSuspended Set if we suspended the VM.
1925	*
1926	* @thread Non-EMT.
1927	* @vmstate Suspended or Running
1928	* @vmstateto Saving+Suspended or
1929	* RunningLS+SuspendingLS+SuspendedLS+Saving+Suspended.
1930	*/
1931	VMMR3DECL(int) VMR3Save(PUVM pUVM, const char pszFilename, bool fContinueAfterwards, PFNVMPROGRESS pfnProgress, void pvUser, bool *pfSuspended)
1932	{
1933	LogFlow(("VMR3Save: pUVM=%p pszFilename=%p:{%s} fContinueAfterwards=%RTbool pfnProgress=%p pvUser=%p pfSuspended=%p\n",
1934	pUVM, pszFilename, pszFilename, fContinueAfterwards, pfnProgress, pvUser, pfSuspended));
1935
1936	/*
1937	* Validate input.
1938	*/
1939	AssertPtr(pfSuspended);
1940	*pfSuspended = false;
1941	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
1942	PVM pVM = pUVM->pVM;
1943	VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
1944	VM_ASSERT_OTHER_THREAD(pVM);
1945	AssertReturn(VALID_PTR(pszFilename), VERR_INVALID_POINTER);
1946	AssertReturn(*pszFilename, VERR_INVALID_PARAMETER);
1947	AssertPtrNullReturn(pfnProgress, VERR_INVALID_POINTER);
1948
1949	/*
1950	* Join paths with VMR3Teleport.
1951	*/
1952	SSMAFTER enmAfter = fContinueAfterwards ? SSMAFTER_CONTINUE : SSMAFTER_DESTROY;
1953	int rc = vmR3SaveTeleport(pVM, 250 /cMsMaxDowntime/,
1954	pszFilename, NULL /* pStreamOps /, NULL / pvStreamOpsUser */,
1955	enmAfter, pfnProgress, pvUser, pfSuspended,
1956	false /* fSkipStateChanges */);
1957	LogFlow(("VMR3Save: returns %Rrc (pfSuspended=%RTbool)\n", rc, pfSuspended));
1958	return rc;
1959	}
1960
1961	/**
1962	* Save current VM state (used by FTM)
1963	*
1964	*
1965	* @returns VBox status code.
1966	*
1967	* @param pVM The VM which state should be saved.
1968	* @param pStreamOps The stream methods.
1969	* @param pvStreamOpsUser The user argument to the stream methods.
1970	* @param pfSuspended Set if we suspended the VM.
1971	* @param fSkipStateChanges Set if we're supposed to skip state changes (FTM delta case)
1972	*
1973	* @thread Any
1974	* @vmstate Suspended or Running
1975	* @vmstateto Saving+Suspended or
1976	* RunningLS+SuspendingLS+SuspendedLS+Saving+Suspended.
1977	*/
1978	VMMR3_INT_DECL(int) VMR3SaveFT(PUVM pUVM, PCSSMSTRMOPS pStreamOps, void pvStreamOpsUser, bool pfSuspended, bool fSkipStateChanges)
1979	{
1980	LogFlow(("VMR3SaveFT: pUVM=%p pStreamOps=%p pvSteamOpsUser=%p pfSuspended=%p\n",
1981	pUVM, pStreamOps, pvStreamOpsUser, pfSuspended));
1982
1983	/*
1984	* Validate input.
1985	*/
1986	AssertPtr(pfSuspended);
1987	*pfSuspended = false;
1988	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
1989	PVM pVM = pUVM->pVM;
1990	VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
1991	AssertReturn(pStreamOps, VERR_INVALID_PARAMETER);
1992
1993	/*
1994	* Join paths with VMR3Teleport.
1995	*/
1996	int rc = vmR3SaveTeleport(pVM, 250 /cMsMaxDowntime/,
1997	NULL, pStreamOps, pvStreamOpsUser,
1998	SSMAFTER_CONTINUE, NULL, NULL, pfSuspended,
1999	fSkipStateChanges);
2000	LogFlow(("VMR3SaveFT: returns %Rrc (pfSuspended=%RTbool)\n", rc, pfSuspended));
2001	return rc;
2002	}
2003
2004
2005	/**
2006	* Teleport the VM (aka live migration).
2007	*
2008	* @returns VBox status code.
2009	*
2010	* @param pUVM The VM which state should be saved.
2011	* @param cMsMaxDowntime The maximum downtime given as milliseconds.
2012	* @param pStreamOps The stream methods.
2013	* @param pvStreamOpsUser The user argument to the stream methods.
2014	* @param pfnProgress Progress callback. Optional.
2015	* @param pvProgressUser User argument for the progress callback.
2016	* @param pfSuspended Set if we suspended the VM.
2017	*
2018	* @thread Non-EMT.
2019	* @vmstate Suspended or Running
2020	* @vmstateto Saving+Suspended or
2021	* RunningLS+SuspendingLS+SuspendedLS+Saving+Suspended.
2022	*/
2023	VMMR3DECL(int) VMR3Teleport(PUVM pUVM, uint32_t cMsMaxDowntime, PCSSMSTRMOPS pStreamOps, void *pvStreamOpsUser,
2024	PFNVMPROGRESS pfnProgress, void pvProgressUser, bool pfSuspended)
2025	{
2026	LogFlow(("VMR3Teleport: pUVM=%p cMsMaxDowntime=%u pStreamOps=%p pvStreamOps=%p pfnProgress=%p pvProgressUser=%p\n",
2027	pUVM, cMsMaxDowntime, pStreamOps, pvStreamOpsUser, pfnProgress, pvProgressUser));
2028
2029	/*
2030	* Validate input.
2031	*/
2032	AssertPtr(pfSuspended);
2033	*pfSuspended = false;
2034	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
2035	PVM pVM = pUVM->pVM;
2036	VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
2037	VM_ASSERT_OTHER_THREAD(pVM);
2038	AssertPtrReturn(pStreamOps, VERR_INVALID_POINTER);
2039	AssertPtrNullReturn(pfnProgress, VERR_INVALID_POINTER);
2040
2041	/*
2042	* Join paths with VMR3Save.
2043	*/
2044	int rc = vmR3SaveTeleport(pVM, cMsMaxDowntime,
2045	NULL /pszFilename/, pStreamOps, pvStreamOpsUser,
2046	SSMAFTER_TELEPORT, pfnProgress, pvProgressUser, pfSuspended,
2047	false /* fSkipStateChanges */);
2048	LogFlow(("VMR3Teleport: returns %Rrc (pfSuspended=%RTbool)\n", rc, pfSuspended));
2049	return rc;
2050	}
2051
2052
2053
2054	/**
2055	* EMT(0) worker for VMR3LoadFromFile and VMR3LoadFromStream.
2056	*
2057	* @returns VBox status code.
2058	*
2059	* @param pUVM Pointer to the VM.
2060	* @param pszFilename The name of the file. NULL if pStreamOps is used.
2061	* @param pStreamOps The stream methods. NULL if pszFilename is used.
2062	* @param pvStreamOpsUser The user argument to the stream methods.
2063	* @param pfnProgress Progress callback. Optional.
2064	* @param pvUser User argument for the progress callback.
2065	* @param fTeleporting Indicates whether we're teleporting or not.
2066	* @param fSkipStateChanges Set if we're supposed to skip state changes (FTM delta case)
2067	*
2068	* @thread EMT.
2069	*/
2070	static DECLCALLBACK(int) vmR3Load(PUVM pUVM, const char pszFilename, PCSSMSTRMOPS pStreamOps, void pvStreamOpsUser,
2071	PFNVMPROGRESS pfnProgress, void *pvProgressUser, bool fTeleporting,
2072	bool fSkipStateChanges)
2073	{
2074	int rc = VINF_SUCCESS;
2075
2076	LogFlow(("vmR3Load: pUVM=%p pszFilename=%p:{%s} pStreamOps=%p pvStreamOpsUser=%p pfnProgress=%p pvProgressUser=%p fTeleporting=%RTbool\n",
2077	pUVM, pszFilename, pszFilename, pStreamOps, pvStreamOpsUser, pfnProgress, pvProgressUser, fTeleporting));
2078
2079	/*
2080	* Validate input (paranoia).
2081	*/
2082	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
2083	PVM pVM = pUVM->pVM;
2084	VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
2085	AssertPtrNull(pszFilename);
2086	AssertPtrNull(pStreamOps);
2087	AssertPtrNull(pfnProgress);
2088
2089	if (!fSkipStateChanges)
2090	{
2091	/*
2092	* Change the state and perform the load.
2093	*
2094	* Always perform a relocation round afterwards to make sure hypervisor
2095	* selectors and such are correct.
2096	*/
2097	rc = vmR3TrySetState(pVM, "VMR3Load", 2,
2098	VMSTATE_LOADING, VMSTATE_CREATED,
2099	VMSTATE_LOADING, VMSTATE_SUSPENDED);
2100	if (RT_FAILURE(rc))
2101	return rc;
2102	}
2103	pVM->vm.s.fTeleportedAndNotFullyResumedYet = fTeleporting;
2104
2105	uint32_t cErrorsPriorToSave = VMR3GetErrorCount(pUVM);
2106	rc = SSMR3Load(pVM, pszFilename, pStreamOps, pvStreamOpsUser, SSMAFTER_RESUME, pfnProgress, pvProgressUser);
2107	if (RT_SUCCESS(rc))
2108	{
2109	VMR3Relocate(pVM, 0 /offDelta/);
2110	if (!fSkipStateChanges)
2111	vmR3SetState(pVM, VMSTATE_SUSPENDED, VMSTATE_LOADING);
2112	}
2113	else
2114	{
2115	pVM->vm.s.fTeleportedAndNotFullyResumedYet = false;
2116	if (!fSkipStateChanges)
2117	vmR3SetState(pVM, VMSTATE_LOAD_FAILURE, VMSTATE_LOADING);
2118
2119	if (cErrorsPriorToSave == VMR3GetErrorCount(pUVM))
2120	rc = VMSetError(pVM, rc, RT_SRC_POS,
2121	N_("Unable to restore the virtual machine's saved state from '%s'. "
2122	"It may be damaged or from an older version of VirtualBox. "
2123	"Please discard the saved state before starting the virtual machine"),
2124	pszFilename);
2125	}
2126
2127	return rc;
2128	}
2129
2130
2131	/**
2132	* Loads a VM state into a newly created VM or a one that is suspended.
2133	*
2134	* To restore a saved state on VM startup, call this function and then resume
2135	* the VM instead of powering it on.
2136	*
2137	* @returns VBox status code.
2138	*
2139	* @param pVM Pointer to the VM.
2140	* @param pszFilename The name of the save state file.
2141	* @param pfnProgress Progress callback. Optional.
2142	* @param pvUser User argument for the progress callback.
2143	*
2144	* @thread Any thread.
2145	* @vmstate Created, Suspended
2146	* @vmstateto Loading+Suspended
2147	*/
2148	VMMR3DECL(int) VMR3LoadFromFile(PUVM pUVM, const char pszFilename, PFNVMPROGRESS pfnProgress, void pvUser)
2149	{
2150	LogFlow(("VMR3LoadFromFile: pUVM=%p pszFilename=%p:{%s} pfnProgress=%p pvUser=%p\n",
2151	pUVM, pszFilename, pszFilename, pfnProgress, pvUser));
2152
2153	/*
2154	* Validate input.
2155	*/
2156	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
2157	AssertPtrReturn(pszFilename, VERR_INVALID_POINTER);
2158
2159	/*
2160	* Forward the request to EMT(0). No need to setup a rendezvous here
2161	* since there is no execution taking place when this call is allowed.
2162	*/
2163	int rc = VMR3ReqCallWaitU(pUVM, 0 /idDstCpu/, (PFNRT)vmR3Load, 8,
2164	pUVM, pszFilename, (uintptr_t)NULL /pStreamOps/, (uintptr_t)NULL /pvStreamOpsUser/, pfnProgress, pvUser,
2165	false /fTeleporting/, false /* fSkipStateChanges */);
2166	LogFlow(("VMR3LoadFromFile: returns %Rrc\n", rc));
2167	return rc;
2168	}
2169
2170
2171	/**
2172	* VMR3LoadFromFile for arbitrary file streams.
2173	*
2174	* @returns VBox status code.
2175	*
2176	* @param pUVM Pointer to the VM.
2177	* @param pStreamOps The stream methods.
2178	* @param pvStreamOpsUser The user argument to the stream methods.
2179	* @param pfnProgress Progress callback. Optional.
2180	* @param pvProgressUser User argument for the progress callback.
2181	*
2182	* @thread Any thread.
2183	* @vmstate Created, Suspended
2184	* @vmstateto Loading+Suspended
2185	*/
2186	VMMR3DECL(int) VMR3LoadFromStream(PUVM pUVM, PCSSMSTRMOPS pStreamOps, void *pvStreamOpsUser,
2187	PFNVMPROGRESS pfnProgress, void *pvProgressUser)
2188	{
2189	LogFlow(("VMR3LoadFromStream: pUVM=%p pStreamOps=%p pvStreamOpsUser=%p pfnProgress=%p pvProgressUser=%p\n",
2190	pUVM, pStreamOps, pvStreamOpsUser, pfnProgress, pvProgressUser));
2191
2192	/*
2193	* Validate input.
2194	*/
2195	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
2196	AssertPtrReturn(pStreamOps, VERR_INVALID_POINTER);
2197
2198	/*
2199	* Forward the request to EMT(0). No need to setup a rendezvous here
2200	* since there is no execution taking place when this call is allowed.
2201	*/
2202	int rc = VMR3ReqCallWaitU(pUVM, 0 /idDstCpu/, (PFNRT)vmR3Load, 8,
2203	pUVM, (uintptr_t)NULL /pszFilename/, pStreamOps, pvStreamOpsUser, pfnProgress, pvProgressUser,
2204	true /fTeleporting/, false /* fSkipStateChanges */);
2205	LogFlow(("VMR3LoadFromStream: returns %Rrc\n", rc));
2206	return rc;
2207	}
2208
2209
2210	/**
2211	* Special version for the FT component, it skips state changes.
2212	*
2213	* @returns VBox status code.
2214	*
2215	* @param pUVM The VM handle.
2216	* @param pStreamOps The stream methods.
2217	* @param pvStreamOpsUser The user argument to the stream methods.
2218	* @param pfnProgress Progress callback. Optional.
2219	* @param pvProgressUser User argument for the progress callback.
2220	*
2221	* @thread Any thread.
2222	* @vmstate Created, Suspended
2223	* @vmstateto Loading+Suspended
2224	*/
2225	VMMR3_INT_DECL(int) VMR3LoadFromStreamFT(PUVM pUVM, PCSSMSTRMOPS pStreamOps, void *pvStreamOpsUser)
2226	{
2227	LogFlow(("VMR3LoadFromStreamFT: pUVM=%p pStreamOps=%p pvStreamOpsUser=%p\n", pUVM, pStreamOps, pvStreamOpsUser));
2228
2229	/*
2230	* Validate input.
2231	*/
2232	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
2233	AssertPtrReturn(pStreamOps, VERR_INVALID_POINTER);
2234
2235	/*
2236	* Forward the request to EMT(0). No need to setup a rendezvous here
2237	* since there is no execution taking place when this call is allowed.
2238	*/
2239	int rc = VMR3ReqCallWaitU(pUVM, 0 /idDstCpu/, (PFNRT)vmR3Load, 8,
2240	pUVM, (uintptr_t)NULL /pszFilename/, pStreamOps, pvStreamOpsUser, NULL, NULL,
2241	true /fTeleporting/, true /* fSkipStateChanges */);
2242	LogFlow(("VMR3LoadFromStream: returns %Rrc\n", rc));
2243	return rc;
2244	}
2245
2246	/**
2247	* EMT rendezvous worker for VMR3PowerOff.
2248	*
2249	* @returns VERR_VM_INVALID_VM_STATE or VINF_EM_OFF. (This is a strict
2250	* return code, see FNVMMEMTRENDEZVOUS.)
2251	*
2252	* @param pVM Pointer to the VM.
2253	* @param pVCpu Pointer to the VMCPU of the EMT.
2254	* @param pvUser Ignored.
2255	*/
2256	static DECLCALLBACK(VBOXSTRICTRC) vmR3PowerOff(PVM pVM, PVMCPU pVCpu, void *pvUser)
2257	{
2258	LogFlow(("vmR3PowerOff: pVM=%p pVCpu=%p/#%u\n", pVM, pVCpu, pVCpu->idCpu));
2259	Assert(!pvUser); NOREF(pvUser);
2260
2261	/*
2262	* The first EMT thru here will change the state to PoweringOff.
2263	*/
2264	if (pVCpu->idCpu == pVM->cCpus - 1)
2265	{
2266	int rc = vmR3TrySetState(pVM, "VMR3PowerOff", 11,
2267	VMSTATE_POWERING_OFF, VMSTATE_RUNNING, /* 1 */
2268	VMSTATE_POWERING_OFF, VMSTATE_SUSPENDED, /* 2 */
2269	VMSTATE_POWERING_OFF, VMSTATE_DEBUGGING, /* 3 */
2270	VMSTATE_POWERING_OFF, VMSTATE_LOAD_FAILURE, /* 4 */
2271	VMSTATE_POWERING_OFF, VMSTATE_GURU_MEDITATION, /* 5 */
2272	VMSTATE_POWERING_OFF, VMSTATE_FATAL_ERROR, /* 6 */
2273	VMSTATE_POWERING_OFF, VMSTATE_CREATED, /* 7 / /* @todo update the diagram! */
2274	VMSTATE_POWERING_OFF_LS, VMSTATE_RUNNING_LS, /* 8 */
2275	VMSTATE_POWERING_OFF_LS, VMSTATE_DEBUGGING_LS, /* 9 */
2276	VMSTATE_POWERING_OFF_LS, VMSTATE_GURU_MEDITATION_LS,/* 10 */
2277	VMSTATE_POWERING_OFF_LS, VMSTATE_FATAL_ERROR_LS); /* 11 */
2278	if (RT_FAILURE(rc))
2279	return rc;
2280	if (rc >= 7)
2281	SSMR3Cancel(pVM->pUVM);
2282	}
2283
2284	/*
2285	* Check the state.
2286	*/
2287	VMSTATE enmVMState = VMR3GetState(pVM);
2288	AssertMsgReturn( enmVMState == VMSTATE_POWERING_OFF
2289	\|\| enmVMState == VMSTATE_POWERING_OFF_LS,
2290	("%s\n", VMR3GetStateName(enmVMState)),
2291	VERR_VM_INVALID_VM_STATE);
2292
2293	/*
2294	* EMT(0) does the actual power off work here after all the other EMTs
2295	* have been thru and entered the STOPPED state.
2296	*/
2297	VMCPU_SET_STATE(pVCpu, VMCPUSTATE_STOPPED);
2298	if (pVCpu->idCpu == 0)
2299	{
2300	/*
2301	* For debugging purposes, we will log a summary of the guest state at this point.
2302	*/
2303	if (enmVMState != VMSTATE_GURU_MEDITATION)
2304	{
2305	/** @todo SMP support? */
2306	/** @todo make the state dumping at VMR3PowerOff optional. */
2307	bool fOldBuffered = RTLogRelSetBuffering(true /fBuffered/);
2308	RTLogRelPrintf("**************** Guest state at power off ****************\n");
2309	DBGFR3Info(pVM->pUVM, "cpumguest", "verbose", DBGFR3InfoLogRelHlp());
2310	RTLogRelPrintf("***\n");
2311	DBGFR3Info(pVM->pUVM, "mode", NULL, DBGFR3InfoLogRelHlp());
2312	RTLogRelPrintf("***\n");
2313	DBGFR3Info(pVM->pUVM, "activetimers", NULL, DBGFR3InfoLogRelHlp());
2314	RTLogRelPrintf("***\n");
2315	DBGFR3Info(pVM->pUVM, "gdt", NULL, DBGFR3InfoLogRelHlp());
2316	/** @todo dump guest call stack. */
2317	#if 1 // "temporary" while debugging #1589
2318	RTLogRelPrintf("***\n");
2319	uint32_t esp = CPUMGetGuestESP(pVCpu);
2320	if ( CPUMGetGuestSS(pVCpu) == 0
2321	&& esp < _64K)
2322	{
2323	uint8_t abBuf[PAGE_SIZE];
2324	RTLogRelPrintf("***\n"
2325	"ss:sp=0000:%04x ", esp);
2326	uint32_t Start = esp & ~(uint32_t)63;
2327	int rc = PGMPhysSimpleReadGCPhys(pVM, abBuf, Start, 0x100);
2328	if (RT_SUCCESS(rc))
2329	RTLogRelPrintf("0000:%04x TO 0000:%04x:\n"
2330	"%.*Rhxd\n",
2331	Start, Start + 0x100 - 1,
2332	0x100, abBuf);
2333	else
2334	RTLogRelPrintf("rc=%Rrc\n", rc);
2335
2336	/* grub ... */
2337	if (esp < 0x2000 && esp > 0x1fc0)
2338	{
2339	rc = PGMPhysSimpleReadGCPhys(pVM, abBuf, 0x8000, 0x800);
2340	if (RT_SUCCESS(rc))
2341	RTLogRelPrintf("0000:8000 TO 0000:87ff:\n"
2342	"%.*Rhxd\n",
2343	0x800, abBuf);
2344	}
2345	/* microsoft cdrom hang ... */
2346	if (true)
2347	{
2348	rc = PGMPhysSimpleReadGCPhys(pVM, abBuf, 0x8000, 0x200);
2349	if (RT_SUCCESS(rc))
2350	RTLogRelPrintf("2000:0000 TO 2000:01ff:\n"
2351	"%.*Rhxd\n",
2352	0x200, abBuf);
2353	}
2354	}
2355	#endif
2356	RTLogRelSetBuffering(fOldBuffered);
2357	RTLogRelPrintf("************ End of Guest state at power off *************\n");
2358	}
2359
2360	/*
2361	* Perform the power off notifications and advance the state to
2362	* Off or OffLS.
2363	*/
2364	PDMR3PowerOff(pVM);
2365	DBGFR3PowerOff(pVM);
2366
2367	PUVM pUVM = pVM->pUVM;
2368	RTCritSectEnter(&pUVM->vm.s.AtStateCritSect);
2369	enmVMState = pVM->enmVMState;
2370	if (enmVMState == VMSTATE_POWERING_OFF_LS)
2371	vmR3SetStateLocked(pVM, pUVM, VMSTATE_OFF_LS, VMSTATE_POWERING_OFF_LS);
2372	else
2373	vmR3SetStateLocked(pVM, pUVM, VMSTATE_OFF, VMSTATE_POWERING_OFF);
2374	RTCritSectLeave(&pUVM->vm.s.AtStateCritSect);
2375	}
2376	return VINF_EM_OFF;
2377	}
2378
2379
2380	/**
2381	* Power off the VM.
2382	*
2383	* @returns VBox status code. When called on EMT, this will be a strict status
2384	* code that has to be propagated up the call stack.
2385	*
2386	* @param pUVM The handle of the VM to be powered off.
2387	*
2388	* @thread Any thread.
2389	* @vmstate Suspended, Running, Guru Meditation, Load Failure
2390	* @vmstateto Off or OffLS
2391	*/
2392	VMMR3DECL(int) VMR3PowerOff(PUVM pUVM)
2393	{
2394	LogFlow(("VMR3PowerOff: pUVM=%p\n", pUVM));
2395	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
2396	PVM pVM = pUVM->pVM;
2397	VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
2398
2399	/*
2400	* Gather all the EMTs to make sure there are no races before
2401	* changing the VM state.
2402	*/
2403	int rc = VMMR3EmtRendezvous(pVM, VMMEMTRENDEZVOUS_FLAGS_TYPE_DESCENDING \| VMMEMTRENDEZVOUS_FLAGS_STOP_ON_ERROR,
2404	vmR3PowerOff, NULL);
2405	LogFlow(("VMR3PowerOff: returns %Rrc\n", rc));
2406	return rc;
2407	}
2408
2409
2410	/**
2411	* Destroys the VM.
2412	*
2413	* The VM must be powered off (or never really powered on) to call this
2414	* function. The VM handle is destroyed and can no longer be used up successful
2415	* return.
2416	*
2417	* @returns VBox status code.
2418	*
2419	* @param pVM The handle of the VM which should be destroyed.
2420	*
2421	* @thread Any none emulation thread.
2422	* @vmstate Off, Created
2423	* @vmstateto N/A
2424	*/
2425	VMMR3DECL(int) VMR3Destroy(PUVM pUVM)
2426	{
2427	LogFlow(("VMR3Destroy: pUVM=%p\n", pUVM));
2428
2429	/*
2430	* Validate input.
2431	*/
2432	if (!pUVM)
2433	return VERR_INVALID_VM_HANDLE;
2434	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
2435	PVM pVM = pUVM->pVM;
2436	VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
2437	AssertLogRelReturn(!VM_IS_EMT(pVM), VERR_VM_THREAD_IS_EMT);
2438
2439	/*
2440	* Change VM state to destroying and aall vmR3Destroy on each of the EMTs
2441	* ending with EMT(0) doing the bulk of the cleanup.
2442	*/
2443	int rc = vmR3TrySetState(pVM, "VMR3Destroy", 1, VMSTATE_DESTROYING, VMSTATE_OFF);
2444	if (RT_FAILURE(rc))
2445	return rc;
2446
2447	rc = VMR3ReqCallWait(pVM, VMCPUID_ALL_REVERSE, (PFNRT)vmR3Destroy, 1, pVM);
2448	AssertLogRelRC(rc);
2449
2450	/*
2451	* Wait for EMTs to quit and destroy the UVM.
2452	*/
2453	vmR3DestroyUVM(pUVM, 30000);
2454
2455	LogFlow(("VMR3Destroy: returns VINF_SUCCESS\n"));
2456	return VINF_SUCCESS;
2457	}
2458
2459
2460	/**
2461	* Internal destruction worker.
2462	*
2463	* This is either called from VMR3Destroy via VMR3ReqCallU or from
2464	* vmR3EmulationThreadWithId when EMT(0) terminates after having called
2465	* VMR3Destroy().
2466	*
2467	* When called on EMT(0), it will performed the great bulk of the destruction.
2468	* When called on the other EMTs, they will do nothing and the whole purpose is
2469	* to return VINF_EM_TERMINATE so they break out of their run loops.
2470	*
2471	* @returns VINF_EM_TERMINATE.
2472	* @param pVM Pointer to the VM.
2473	*/
2474	DECLCALLBACK(int) vmR3Destroy(PVM pVM)
2475	{
2476	PUVM pUVM = pVM->pUVM;
2477	PVMCPU pVCpu = VMMGetCpu(pVM);
2478	Assert(pVCpu);
2479	LogFlow(("vmR3Destroy: pVM=%p pUVM=%p pVCpu=%p idCpu=%u\n", pVM, pUVM, pVCpu, pVCpu->idCpu));
2480
2481	/*
2482	* Only VCPU 0 does the full cleanup (last).
2483	*/
2484	if (pVCpu->idCpu == 0)
2485	{
2486	/*
2487	* Dump statistics to the log.
2488	*/
2489	#if defined(VBOX_WITH_STATISTICS) \|\| defined(LOG_ENABLED)
2490	RTLogFlags(NULL, "nodisabled nobuffered");
2491	#endif
2492	#ifdef VBOX_WITH_STATISTICS
2493	STAMR3Dump(pUVM, "*");
2494	#else
2495	LogRel(("*********************** Statistics ***********************\n"));
2496	STAMR3DumpToReleaseLog(pUVM, "*");
2497	LogRel(("******************* End of statistics ********************\n"));
2498	#endif
2499
2500	/*
2501	* Destroy the VM components.
2502	*/
2503	int rc = TMR3Term(pVM);
2504	AssertRC(rc);
2505	#ifdef VBOX_WITH_DEBUGGER
2506	rc = DBGCTcpTerminate(pUVM, pUVM->vm.s.pvDBGC);
2507	pUVM->vm.s.pvDBGC = NULL;
2508	#endif
2509	AssertRC(rc);
2510	rc = FTMR3Term(pVM);
2511	AssertRC(rc);
2512	rc = PDMR3Term(pVM);
2513	AssertRC(rc);
2514	rc = DBGFR3Term(pVM);
2515	AssertRC(rc);
2516	rc = IEMR3Term(pVM);
2517	AssertRC(rc);
2518	rc = EMR3Term(pVM);
2519	AssertRC(rc);
2520	rc = IOMR3Term(pVM);
2521	AssertRC(rc);
2522	#ifdef VBOX_WITH_RAW_MODE
2523	rc = CSAMR3Term(pVM);
2524	AssertRC(rc);
2525	rc = PATMR3Term(pVM);
2526	AssertRC(rc);
2527	#endif
2528	rc = TRPMR3Term(pVM);
2529	AssertRC(rc);
2530	rc = SELMR3Term(pVM);
2531	AssertRC(rc);
2532	#ifdef VBOX_WITH_REM
2533	rc = REMR3Term(pVM);
2534	AssertRC(rc);
2535	#endif
2536	rc = HMR3Term(pVM);
2537	AssertRC(rc);
2538	rc = PGMR3Term(pVM);
2539	AssertRC(rc);
2540	rc = VMMR3Term(pVM); /* Terminates the ring-0 code! */
2541	AssertRC(rc);
2542	rc = CPUMR3Term(pVM);
2543	AssertRC(rc);
2544	SSMR3Term(pVM);
2545	rc = PDMR3CritSectBothTerm(pVM);
2546	AssertRC(rc);
2547	rc = MMR3Term(pVM);
2548	AssertRC(rc);
2549
2550	/*
2551	* We're done, tell the other EMTs to quit.
2552	*/
2553	ASMAtomicUoWriteBool(&pUVM->vm.s.fTerminateEMT, true);
2554	ASMAtomicWriteU32(&pVM->fGlobalForcedActions, VM_FF_CHECK_VM_STATE); /* Can't hurt... */
2555	LogFlow(("vmR3Destroy: returning %Rrc\n", VINF_EM_TERMINATE));
2556	}
2557	return VINF_EM_TERMINATE;
2558	}
2559
2560
2561	/**
2562	* Destroys the UVM portion.
2563	*
2564	* This is called as the final step in the VM destruction or as the cleanup
2565	* in case of a creation failure.
2566	*
2567	* @param pVM Pointer to the VM.
2568	* @param cMilliesEMTWait The number of milliseconds to wait for the emulation
2569	* threads.
2570	*/
2571	static void vmR3DestroyUVM(PUVM pUVM, uint32_t cMilliesEMTWait)
2572	{
2573	/*
2574	* Signal termination of each the emulation threads and
2575	* wait for them to complete.
2576	*/
2577	/* Signal them. */
2578	ASMAtomicUoWriteBool(&pUVM->vm.s.fTerminateEMT, true);
2579	if (pUVM->pVM)
2580	VM_FF_SET(pUVM->pVM, VM_FF_CHECK_VM_STATE); /* Can't hurt... */
2581	for (VMCPUID i = 0; i < pUVM->cCpus; i++)
2582	{
2583	VMR3NotifyGlobalFFU(pUVM, VMNOTIFYFF_FLAGS_DONE_REM);
2584	RTSemEventSignal(pUVM->aCpus[i].vm.s.EventSemWait);
2585	}
2586
2587	/* Wait for them. */
2588	uint64_t NanoTS = RTTimeNanoTS();
2589	RTTHREAD hSelf = RTThreadSelf();
2590	ASMAtomicUoWriteBool(&pUVM->vm.s.fTerminateEMT, true);
2591	for (VMCPUID i = 0; i < pUVM->cCpus; i++)
2592	{
2593	RTTHREAD hThread = pUVM->aCpus[i].vm.s.ThreadEMT;
2594	if ( hThread != NIL_RTTHREAD
2595	&& hThread != hSelf)
2596	{
2597	uint64_t cMilliesElapsed = (RTTimeNanoTS() - NanoTS) / 1000000;
2598	int rc2 = RTThreadWait(hThread,
2599	cMilliesElapsed < cMilliesEMTWait
2600	? RT_MAX(cMilliesEMTWait - cMilliesElapsed, 2000)
2601	: 2000,
2602	NULL);
2603	if (rc2 == VERR_TIMEOUT) /* avoid the assertion when debugging. */
2604	rc2 = RTThreadWait(hThread, 1000, NULL);
2605	AssertLogRelMsgRC(rc2, ("i=%u rc=%Rrc\n", i, rc2));
2606	if (RT_SUCCESS(rc2))
2607	pUVM->aCpus[0].vm.s.ThreadEMT = NIL_RTTHREAD;
2608	}
2609	}
2610
2611	/* Cleanup the semaphores. */
2612	for (VMCPUID i = 0; i < pUVM->cCpus; i++)
2613	{
2614	RTSemEventDestroy(pUVM->aCpus[i].vm.s.EventSemWait);
2615	pUVM->aCpus[i].vm.s.EventSemWait = NIL_RTSEMEVENT;
2616	}
2617
2618	/*
2619	* Free the event semaphores associated with the request packets.
2620	*/
2621	unsigned cReqs = 0;
2622	for (unsigned i = 0; i < RT_ELEMENTS(pUVM->vm.s.apReqFree); i++)
2623	{
2624	PVMREQ pReq = pUVM->vm.s.apReqFree[i];
2625	pUVM->vm.s.apReqFree[i] = NULL;
2626	for (; pReq; pReq = pReq->pNext, cReqs++)
2627	{
2628	pReq->enmState = VMREQSTATE_INVALID;
2629	RTSemEventDestroy(pReq->EventSem);
2630	}
2631	}
2632	Assert(cReqs == pUVM->vm.s.cReqFree); NOREF(cReqs);
2633
2634	/*
2635	* Kill all queued requests. (There really shouldn't be any!)
2636	*/
2637	for (unsigned i = 0; i < 10; i++)
2638	{
2639	PVMREQ pReqHead = ASMAtomicXchgPtrT(&pUVM->vm.s.pPriorityReqs, NULL, PVMREQ);
2640	if (!pReqHead)
2641	{
2642	pReqHead = ASMAtomicXchgPtrT(&pUVM->vm.s.pNormalReqs, NULL, PVMREQ);
2643	if (!pReqHead)
2644	break;
2645	}
2646	AssertLogRelMsgFailed(("Requests pending! VMR3Destroy caller has to serialize this.\n"));
2647
2648	for (PVMREQ pReq = pReqHead; pReq; pReq = pReq->pNext)
2649	{
2650	ASMAtomicUoWriteS32(&pReq->iStatus, VERR_VM_REQUEST_KILLED);
2651	ASMAtomicWriteSize(&pReq->enmState, VMREQSTATE_INVALID);
2652	RTSemEventSignal(pReq->EventSem);
2653	RTThreadSleep(2);
2654	RTSemEventDestroy(pReq->EventSem);
2655	}
2656	/* give them a chance to respond before we free the request memory. */
2657	RTThreadSleep(32);
2658	}
2659
2660	/*
2661	* Now all queued VCPU requests (again, there shouldn't be any).
2662	*/
2663	for (VMCPUID idCpu = 0; idCpu < pUVM->cCpus; idCpu++)
2664	{
2665	PUVMCPU pUVCpu = &pUVM->aCpus[idCpu];
2666
2667	for (unsigned i = 0; i < 10; i++)
2668	{
2669	PVMREQ pReqHead = ASMAtomicXchgPtrT(&pUVCpu->vm.s.pPriorityReqs, NULL, PVMREQ);
2670	if (!pReqHead)
2671	{
2672	pReqHead = ASMAtomicXchgPtrT(&pUVCpu->vm.s.pNormalReqs, NULL, PVMREQ);
2673	if (!pReqHead)
2674	break;
2675	}
2676	AssertLogRelMsgFailed(("Requests pending! VMR3Destroy caller has to serialize this.\n"));
2677
2678	for (PVMREQ pReq = pReqHead; pReq; pReq = pReq->pNext)
2679	{
2680	ASMAtomicUoWriteS32(&pReq->iStatus, VERR_VM_REQUEST_KILLED);
2681	ASMAtomicWriteSize(&pReq->enmState, VMREQSTATE_INVALID);
2682	RTSemEventSignal(pReq->EventSem);
2683	RTThreadSleep(2);
2684	RTSemEventDestroy(pReq->EventSem);
2685	}
2686	/* give them a chance to respond before we free the request memory. */
2687	RTThreadSleep(32);
2688	}
2689	}
2690
2691	/*
2692	* Make sure the VMMR0.r0 module and whatever else is unloaded.
2693	*/
2694	PDMR3TermUVM(pUVM);
2695
2696	/*
2697	* Terminate the support library if initialized.
2698	*/
2699	if (pUVM->vm.s.pSession)
2700	{
2701	int rc = SUPR3Term(false /fForced/);
2702	AssertRC(rc);
2703	pUVM->vm.s.pSession = NIL_RTR0PTR;
2704	}
2705
2706	/*
2707	* Release the UVM structure reference.
2708	*/
2709	VMR3ReleaseUVM(pUVM);
2710
2711	/*
2712	* Clean up and flush logs.
2713	*/
2714	#ifdef LOG_ENABLED
2715	RTLogSetCustomPrefixCallback(NULL, NULL, NULL);
2716	#endif
2717	RTLogFlush(NULL);
2718	}
2719
2720
2721	/**
2722	* Worker which checks integrity of some internal structures.
2723	* This is yet another attempt to track down that AVL tree crash.
2724	*/
2725	static void vmR3CheckIntegrity(PVM pVM)
2726	{
2727	#ifdef VBOX_STRICT
2728	int rc = PGMR3CheckIntegrity(pVM);
2729	AssertReleaseRC(rc);
2730	#endif
2731	}
2732
2733
2734	/**
2735	* EMT rendezvous worker for VMR3Reset.
2736	*
2737	* This is called by the emulation threads as a response to the reset request
2738	* issued by VMR3Reset().
2739	*
2740	* @returns VERR_VM_INVALID_VM_STATE, VINF_EM_RESET or VINF_EM_SUSPEND. (This
2741	* is a strict return code, see FNVMMEMTRENDEZVOUS.)
2742	*
2743	* @param pVM Pointer to the VM.
2744	* @param pVCpu Pointer to the VMCPU of the EMT.
2745	* @param pvUser Ignored.
2746	*/
2747	static DECLCALLBACK(VBOXSTRICTRC) vmR3Reset(PVM pVM, PVMCPU pVCpu, void *pvUser)
2748	{
2749	Assert(!pvUser); NOREF(pvUser);
2750
2751	/*
2752	* The first EMT will try change the state to resetting. If this fails,
2753	* we won't get called for the other EMTs.
2754	*/
2755	if (pVCpu->idCpu == pVM->cCpus - 1)
2756	{
2757	int rc = vmR3TrySetState(pVM, "VMR3Reset", 3,
2758	VMSTATE_RESETTING, VMSTATE_RUNNING,
2759	VMSTATE_RESETTING, VMSTATE_SUSPENDED,
2760	VMSTATE_RESETTING_LS, VMSTATE_RUNNING_LS);
2761	if (RT_FAILURE(rc))
2762	return rc;
2763	}
2764
2765	/*
2766	* Check the state.
2767	*/
2768	VMSTATE enmVMState = VMR3GetState(pVM);
2769	AssertLogRelMsgReturn( enmVMState == VMSTATE_RESETTING
2770	\|\| enmVMState == VMSTATE_RESETTING_LS,
2771	("%s\n", VMR3GetStateName(enmVMState)),
2772	VERR_VM_UNEXPECTED_UNSTABLE_STATE);
2773
2774	/*
2775	* EMT(0) does the full cleanup after all the other EMTs has been
2776	* thru here and been told to enter the EMSTATE_WAIT_SIPI state.
2777	*
2778	* Because there are per-cpu reset routines and order may/is important,
2779	* the following sequence looks a bit ugly...
2780	*/
2781	if (pVCpu->idCpu == 0)
2782	vmR3CheckIntegrity(pVM);
2783
2784	/* Reset the VCpu state. */
2785	VMCPU_ASSERT_STATE(pVCpu, VMCPUSTATE_STARTED);
2786
2787	/* Clear all pending forced actions. */
2788	VMCPU_FF_CLEAR(pVCpu, VMCPU_FF_ALL_MASK & ~VMCPU_FF_REQUEST);
2789
2790	/*
2791	* Reset the VM components.
2792	*/
2793	if (pVCpu->idCpu == 0)
2794	{
2795	#ifdef VBOX_WITH_RAW_MODE
2796	PATMR3Reset(pVM);
2797	CSAMR3Reset(pVM);
2798	#endif
2799	GIMR3Reset(pVM); /* This must come before PDM and TM. */
2800	PDMR3Reset(pVM);
2801	PGMR3Reset(pVM);
2802	SELMR3Reset(pVM);
2803	TRPMR3Reset(pVM);
2804	#ifdef VBOX_WITH_REM
2805	REMR3Reset(pVM);
2806	#endif
2807	IOMR3Reset(pVM);
2808	CPUMR3Reset(pVM);
2809	TMR3Reset(pVM);
2810	EMR3Reset(pVM);
2811	HMR3Reset(pVM); /* This must come after PATM, CSAM, CPUM, SELM and TRPM. */
2812
2813	#ifdef LOG_ENABLED
2814	/*
2815	* Debug logging.
2816	*/
2817	RTLogPrintf("\n\nThe VM was reset:\n");
2818	DBGFR3Info(pVM->pUVM, "cpum", "verbose", NULL);
2819	#endif
2820
2821	/*
2822	* Do memory setup.
2823	*/
2824	PGMR3MemSetup(pVM, true /fAtReset/);
2825	PDMR3MemSetup(pVM, true /fAtReset/);
2826
2827	/*
2828	* Since EMT(0) is the last to go thru here, it will advance the state.
2829	* When a live save is active, we will move on to SuspendingLS but
2830	* leave it for VMR3Reset to do the actual suspending due to deadlock risks.
2831	*/
2832	PUVM pUVM = pVM->pUVM;
2833	RTCritSectEnter(&pUVM->vm.s.AtStateCritSect);
2834	enmVMState = pVM->enmVMState;
2835	if (enmVMState == VMSTATE_RESETTING)
2836	{
2837	if (pUVM->vm.s.enmPrevVMState == VMSTATE_SUSPENDED)
2838	vmR3SetStateLocked(pVM, pUVM, VMSTATE_SUSPENDED, VMSTATE_RESETTING);
2839	else
2840	vmR3SetStateLocked(pVM, pUVM, VMSTATE_RUNNING, VMSTATE_RESETTING);
2841	}
2842	else
2843	vmR3SetStateLocked(pVM, pUVM, VMSTATE_SUSPENDING_LS, VMSTATE_RESETTING_LS);
2844	RTCritSectLeave(&pUVM->vm.s.AtStateCritSect);
2845
2846	vmR3CheckIntegrity(pVM);
2847
2848	/*
2849	* Do the suspend bit as well.
2850	* It only requires some EMT(0) work at present.
2851	*/
2852	if (enmVMState != VMSTATE_RESETTING)
2853	{
2854	vmR3SuspendDoWork(pVM);
2855	vmR3SetState(pVM, VMSTATE_SUSPENDED_LS, VMSTATE_SUSPENDING_LS);
2856	}
2857	}
2858
2859	return enmVMState == VMSTATE_RESETTING
2860	? VINF_EM_RESET
2861	: 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. */
2862	}
2863
2864
2865	/**
2866	* Reset the current VM.
2867	*
2868	* @returns VBox status code.
2869	* @param pUVM The VM to reset.
2870	*/
2871	VMMR3DECL(int) VMR3Reset(PUVM pUVM)
2872	{
2873	LogFlow(("VMR3Reset:\n"));
2874	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
2875	PVM pVM = pUVM->pVM;
2876	VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
2877
2878	if (pVM->vm.s.fPowerOffInsteadOfReset)
2879	{
2880	if ( pUVM->pVmm2UserMethods
2881	&& pUVM->pVmm2UserMethods->pfnNotifyResetTurnedIntoPowerOff)
2882	pUVM->pVmm2UserMethods->pfnNotifyResetTurnedIntoPowerOff(pUVM->pVmm2UserMethods, pUVM);
2883	return VMR3PowerOff(pUVM);
2884	}
2885
2886	/*
2887	* Gather all the EMTs to make sure there are no races before
2888	* changing the VM state.
2889	*/
2890	int rc = VMMR3EmtRendezvous(pVM, VMMEMTRENDEZVOUS_FLAGS_TYPE_DESCENDING \| VMMEMTRENDEZVOUS_FLAGS_STOP_ON_ERROR,
2891	vmR3Reset, NULL);
2892	LogFlow(("VMR3Reset: returns %Rrc\n", rc));
2893	return rc;
2894	}
2895
2896
2897	/**
2898	* Gets the user mode VM structure pointer given Pointer to the VM.
2899	*
2900	* @returns Pointer to the user mode VM structure on success. NULL if @a pVM is
2901	* invalid (asserted).
2902	* @param pVM Pointer to the VM.
2903	* @sa VMR3GetVM, VMR3RetainUVM
2904	*/
2905	VMMR3DECL(PUVM) VMR3GetUVM(PVM pVM)
2906	{
2907	VM_ASSERT_VALID_EXT_RETURN(pVM, NULL);
2908	return pVM->pUVM;
2909	}
2910
2911
2912	/**
2913	* Gets the shared VM structure pointer given the pointer to the user mode VM
2914	* structure.
2915	*
2916	* @returns Pointer to the VM.
2917	* NULL if @a pUVM is invalid (asserted) or if no shared VM structure
2918	* is currently associated with it.
2919	* @param pUVM The user mode VM handle.
2920	* @sa VMR3GetUVM
2921	*/
2922	VMMR3DECL(PVM) VMR3GetVM(PUVM pUVM)
2923	{
2924	UVM_ASSERT_VALID_EXT_RETURN(pUVM, NULL);
2925	return pUVM->pVM;
2926	}
2927
2928
2929	/**
2930	* Retain the user mode VM handle.
2931	*
2932	* @returns Reference count.
2933	* UINT32_MAX if @a pUVM is invalid.
2934	*
2935	* @param pUVM The user mode VM handle.
2936	* @sa VMR3ReleaseUVM
2937	*/
2938	VMMR3DECL(uint32_t) VMR3RetainUVM(PUVM pUVM)
2939	{
2940	UVM_ASSERT_VALID_EXT_RETURN(pUVM, UINT32_MAX);
2941	uint32_t cRefs = ASMAtomicIncU32(&pUVM->vm.s.cUvmRefs);
2942	AssertMsg(cRefs > 0 && cRefs < _64K, ("%u\n", cRefs));
2943	return cRefs;
2944	}
2945
2946
2947	/**
2948	* Does the final release of the UVM structure.
2949	*
2950	* @param pUVM The user mode VM handle.
2951	*/
2952	static void vmR3DoReleaseUVM(PUVM pUVM)
2953	{
2954	/*
2955	* Free the UVM.
2956	*/
2957	Assert(!pUVM->pVM);
2958
2959	MMR3TermUVM(pUVM);
2960	STAMR3TermUVM(pUVM);
2961
2962	ASMAtomicUoWriteU32(&pUVM->u32Magic, UINT32_MAX);
2963	RTTlsFree(pUVM->vm.s.idxTLS);
2964	RTMemPageFree(pUVM, RT_OFFSETOF(UVM, aCpus[pUVM->cCpus]));
2965	}
2966
2967
2968	/**
2969	* Releases a refernece to the mode VM handle.
2970	*
2971	* @returns The new reference count, 0 if destroyed.
2972	* UINT32_MAX if @a pUVM is invalid.
2973	*
2974	* @param pUVM The user mode VM handle.
2975	* @sa VMR3RetainUVM
2976	*/
2977	VMMR3DECL(uint32_t) VMR3ReleaseUVM(PUVM pUVM)
2978	{
2979	if (!pUVM)
2980	return 0;
2981	UVM_ASSERT_VALID_EXT_RETURN(pUVM, UINT32_MAX);
2982	uint32_t cRefs = ASMAtomicDecU32(&pUVM->vm.s.cUvmRefs);
2983	if (!cRefs)
2984	vmR3DoReleaseUVM(pUVM);
2985	else
2986	AssertMsg(cRefs < _64K, ("%u\n", cRefs));
2987	return cRefs;
2988	}
2989
2990
2991	/**
2992	* Gets the VM name.
2993	*
2994	* @returns Pointer to a read-only string containing the name. NULL if called
2995	* too early.
2996	* @param pUVM The user mode VM handle.
2997	*/
2998	VMMR3DECL(const char *) VMR3GetName(PUVM pUVM)
2999	{
3000	UVM_ASSERT_VALID_EXT_RETURN(pUVM, NULL);
3001	return pUVM->vm.s.pszName;
3002	}
3003
3004
3005	/**
3006	* Gets the VM UUID.
3007	*
3008	* @returns pUuid on success, NULL on failure.
3009	* @param pUVM The user mode VM handle.
3010	* @param pUuid Where to store the UUID.
3011	*/
3012	VMMR3DECL(PRTUUID) VMR3GetUuid(PUVM pUVM, PRTUUID pUuid)
3013	{
3014	UVM_ASSERT_VALID_EXT_RETURN(pUVM, NULL);
3015	AssertPtrReturn(pUuid, NULL);
3016
3017	*pUuid = pUVM->vm.s.Uuid;
3018	return pUuid;
3019	}
3020
3021
3022	/**
3023	* Gets the current VM state.
3024	*
3025	* @returns The current VM state.
3026	* @param pVM Pointer to the VM.
3027	* @thread Any
3028	*/
3029	VMMR3DECL(VMSTATE) VMR3GetState(PVM pVM)
3030	{
3031	AssertMsgReturn(RT_VALID_ALIGNED_PTR(pVM, PAGE_SIZE), ("%p\n", pVM), VMSTATE_TERMINATED);
3032	VMSTATE enmVMState = pVM->enmVMState;
3033	return enmVMState >= VMSTATE_CREATING && enmVMState <= VMSTATE_TERMINATED ? enmVMState : VMSTATE_TERMINATED;
3034	}
3035
3036
3037	/**
3038	* Gets the current VM state.
3039	*
3040	* @returns The current VM state.
3041	* @param pUVM The user-mode VM handle.
3042	* @thread Any
3043	*/
3044	VMMR3DECL(VMSTATE) VMR3GetStateU(PUVM pUVM)
3045	{
3046	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VMSTATE_TERMINATED);
3047	if (RT_UNLIKELY(!pUVM->pVM))
3048	return VMSTATE_TERMINATED;
3049	return pUVM->pVM->enmVMState;
3050	}
3051
3052
3053	/**
3054	* Gets the state name string for a VM state.
3055	*
3056	* @returns Pointer to the state name. (readonly)
3057	* @param enmState The state.
3058	*/
3059	VMMR3DECL(const char *) VMR3GetStateName(VMSTATE enmState)
3060	{
3061	switch (enmState)
3062	{
3063	case VMSTATE_CREATING: return "CREATING";
3064	case VMSTATE_CREATED: return "CREATED";
3065	case VMSTATE_LOADING: return "LOADING";
3066	case VMSTATE_POWERING_ON: return "POWERING_ON";
3067	case VMSTATE_RESUMING: return "RESUMING";
3068	case VMSTATE_RUNNING: return "RUNNING";
3069	case VMSTATE_RUNNING_LS: return "RUNNING_LS";
3070	case VMSTATE_RUNNING_FT: return "RUNNING_FT";
3071	case VMSTATE_RESETTING: return "RESETTING";
3072	case VMSTATE_RESETTING_LS: return "RESETTING_LS";
3073	case VMSTATE_SUSPENDED: return "SUSPENDED";
3074	case VMSTATE_SUSPENDED_LS: return "SUSPENDED_LS";
3075	case VMSTATE_SUSPENDED_EXT_LS: return "SUSPENDED_EXT_LS";
3076	case VMSTATE_SUSPENDING: return "SUSPENDING";
3077	case VMSTATE_SUSPENDING_LS: return "SUSPENDING_LS";
3078	case VMSTATE_SUSPENDING_EXT_LS: return "SUSPENDING_EXT_LS";
3079	case VMSTATE_SAVING: return "SAVING";
3080	case VMSTATE_DEBUGGING: return "DEBUGGING";
3081	case VMSTATE_DEBUGGING_LS: return "DEBUGGING_LS";
3082	case VMSTATE_POWERING_OFF: return "POWERING_OFF";
3083	case VMSTATE_POWERING_OFF_LS: return "POWERING_OFF_LS";
3084	case VMSTATE_FATAL_ERROR: return "FATAL_ERROR";
3085	case VMSTATE_FATAL_ERROR_LS: return "FATAL_ERROR_LS";
3086	case VMSTATE_GURU_MEDITATION: return "GURU_MEDITATION";
3087	case VMSTATE_GURU_MEDITATION_LS:return "GURU_MEDITATION_LS";
3088	case VMSTATE_LOAD_FAILURE: return "LOAD_FAILURE";
3089	case VMSTATE_OFF: return "OFF";
3090	case VMSTATE_OFF_LS: return "OFF_LS";
3091	case VMSTATE_DESTROYING: return "DESTROYING";
3092	case VMSTATE_TERMINATED: return "TERMINATED";
3093
3094	default:
3095	AssertMsgFailed(("Unknown state %d\n", enmState));
3096	return "Unknown!\n";
3097	}
3098	}
3099
3100
3101	/**
3102	* Validates the state transition in strict builds.
3103	*
3104	* @returns true if valid, false if not.
3105	*
3106	* @param enmStateOld The old (current) state.
3107	* @param enmStateNew The proposed new state.
3108	*
3109	* @remarks The reference for this is found in doc/vp/VMM.vpp, the VMSTATE
3110	* diagram (under State Machine Diagram).
3111	*/
3112	static bool vmR3ValidateStateTransition(VMSTATE enmStateOld, VMSTATE enmStateNew)
3113	{
3114	#ifdef VBOX_STRICT
3115	switch (enmStateOld)
3116	{
3117	case VMSTATE_CREATING:
3118	AssertMsgReturn(enmStateNew == VMSTATE_CREATED, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3119	break;
3120
3121	case VMSTATE_CREATED:
3122	AssertMsgReturn( enmStateNew == VMSTATE_LOADING
3123	\|\| enmStateNew == VMSTATE_POWERING_ON
3124	\|\| enmStateNew == VMSTATE_POWERING_OFF
3125	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3126	break;
3127
3128	case VMSTATE_LOADING:
3129	AssertMsgReturn( enmStateNew == VMSTATE_SUSPENDED
3130	\|\| enmStateNew == VMSTATE_LOAD_FAILURE
3131	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3132	break;
3133
3134	case VMSTATE_POWERING_ON:
3135	AssertMsgReturn( enmStateNew == VMSTATE_RUNNING
3136	/\|\| enmStateNew == VMSTATE_FATAL_ERROR ?/
3137	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3138	break;
3139
3140	case VMSTATE_RESUMING:
3141	AssertMsgReturn( enmStateNew == VMSTATE_RUNNING
3142	/\|\| enmStateNew == VMSTATE_FATAL_ERROR ?/
3143	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3144	break;
3145
3146	case VMSTATE_RUNNING:
3147	AssertMsgReturn( enmStateNew == VMSTATE_POWERING_OFF
3148	\|\| enmStateNew == VMSTATE_SUSPENDING
3149	\|\| enmStateNew == VMSTATE_RESETTING
3150	\|\| enmStateNew == VMSTATE_RUNNING_LS
3151	\|\| enmStateNew == VMSTATE_RUNNING_FT
3152	\|\| enmStateNew == VMSTATE_DEBUGGING
3153	\|\| enmStateNew == VMSTATE_FATAL_ERROR
3154	\|\| enmStateNew == VMSTATE_GURU_MEDITATION
3155	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3156	break;
3157
3158	case VMSTATE_RUNNING_LS:
3159	AssertMsgReturn( enmStateNew == VMSTATE_POWERING_OFF_LS
3160	\|\| enmStateNew == VMSTATE_SUSPENDING_LS
3161	\|\| enmStateNew == VMSTATE_SUSPENDING_EXT_LS
3162	\|\| enmStateNew == VMSTATE_RESETTING_LS
3163	\|\| enmStateNew == VMSTATE_RUNNING
3164	\|\| enmStateNew == VMSTATE_DEBUGGING_LS
3165	\|\| enmStateNew == VMSTATE_FATAL_ERROR_LS
3166	\|\| enmStateNew == VMSTATE_GURU_MEDITATION_LS
3167	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3168	break;
3169
3170	case VMSTATE_RUNNING_FT:
3171	AssertMsgReturn( enmStateNew == VMSTATE_POWERING_OFF
3172	\|\| enmStateNew == VMSTATE_FATAL_ERROR
3173	\|\| enmStateNew == VMSTATE_GURU_MEDITATION
3174	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3175	break;
3176
3177	case VMSTATE_RESETTING:
3178	AssertMsgReturn(enmStateNew == VMSTATE_RUNNING, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3179	break;
3180
3181	case VMSTATE_RESETTING_LS:
3182	AssertMsgReturn( enmStateNew == VMSTATE_SUSPENDING_LS
3183	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3184	break;
3185
3186	case VMSTATE_SUSPENDING:
3187	AssertMsgReturn(enmStateNew == VMSTATE_SUSPENDED, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3188	break;
3189
3190	case VMSTATE_SUSPENDING_LS:
3191	AssertMsgReturn( enmStateNew == VMSTATE_SUSPENDING
3192	\|\| enmStateNew == VMSTATE_SUSPENDED_LS
3193	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3194	break;
3195
3196	case VMSTATE_SUSPENDING_EXT_LS:
3197	AssertMsgReturn( enmStateNew == VMSTATE_SUSPENDING
3198	\|\| enmStateNew == VMSTATE_SUSPENDED_EXT_LS
3199	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3200	break;
3201
3202	case VMSTATE_SUSPENDED:
3203	AssertMsgReturn( enmStateNew == VMSTATE_POWERING_OFF
3204	\|\| enmStateNew == VMSTATE_SAVING
3205	\|\| enmStateNew == VMSTATE_RESETTING
3206	\|\| enmStateNew == VMSTATE_RESUMING
3207	\|\| enmStateNew == VMSTATE_LOADING
3208	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3209	break;
3210
3211	case VMSTATE_SUSPENDED_LS:
3212	AssertMsgReturn( enmStateNew == VMSTATE_SUSPENDED
3213	\|\| enmStateNew == VMSTATE_SAVING
3214	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3215	break;
3216
3217	case VMSTATE_SUSPENDED_EXT_LS:
3218	AssertMsgReturn( enmStateNew == VMSTATE_SUSPENDED
3219	\|\| enmStateNew == VMSTATE_SAVING
3220	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3221	break;
3222
3223	case VMSTATE_SAVING:
3224	AssertMsgReturn(enmStateNew == VMSTATE_SUSPENDED, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3225	break;
3226
3227	case VMSTATE_DEBUGGING:
3228	AssertMsgReturn( enmStateNew == VMSTATE_RUNNING
3229	\|\| enmStateNew == VMSTATE_POWERING_OFF
3230	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3231	break;
3232
3233	case VMSTATE_DEBUGGING_LS:
3234	AssertMsgReturn( enmStateNew == VMSTATE_DEBUGGING
3235	\|\| enmStateNew == VMSTATE_RUNNING_LS
3236	\|\| enmStateNew == VMSTATE_POWERING_OFF_LS
3237	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3238	break;
3239
3240	case VMSTATE_POWERING_OFF:
3241	AssertMsgReturn(enmStateNew == VMSTATE_OFF, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3242	break;
3243
3244	case VMSTATE_POWERING_OFF_LS:
3245	AssertMsgReturn( enmStateNew == VMSTATE_POWERING_OFF
3246	\|\| enmStateNew == VMSTATE_OFF_LS
3247	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3248	break;
3249
3250	case VMSTATE_OFF:
3251	AssertMsgReturn(enmStateNew == VMSTATE_DESTROYING, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3252	break;
3253
3254	case VMSTATE_OFF_LS:
3255	AssertMsgReturn(enmStateNew == VMSTATE_OFF, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3256	break;
3257
3258	case VMSTATE_FATAL_ERROR:
3259	AssertMsgReturn(enmStateNew == VMSTATE_POWERING_OFF, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3260	break;
3261
3262	case VMSTATE_FATAL_ERROR_LS:
3263	AssertMsgReturn( enmStateNew == VMSTATE_FATAL_ERROR
3264	\|\| enmStateNew == VMSTATE_POWERING_OFF_LS
3265	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3266	break;
3267
3268	case VMSTATE_GURU_MEDITATION:
3269	AssertMsgReturn( enmStateNew == VMSTATE_DEBUGGING
3270	\|\| enmStateNew == VMSTATE_POWERING_OFF
3271	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3272	break;
3273
3274	case VMSTATE_GURU_MEDITATION_LS:
3275	AssertMsgReturn( enmStateNew == VMSTATE_GURU_MEDITATION
3276	\|\| enmStateNew == VMSTATE_DEBUGGING_LS
3277	\|\| enmStateNew == VMSTATE_POWERING_OFF_LS
3278	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3279	break;
3280
3281	case VMSTATE_LOAD_FAILURE:
3282	AssertMsgReturn(enmStateNew == VMSTATE_POWERING_OFF, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3283	break;
3284
3285	case VMSTATE_DESTROYING:
3286	AssertMsgReturn(enmStateNew == VMSTATE_TERMINATED, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3287	break;
3288
3289	case VMSTATE_TERMINATED:
3290	default:
3291	AssertMsgFailedReturn(("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3292	break;
3293	}
3294	#endif /* VBOX_STRICT */
3295	return true;
3296	}
3297
3298
3299	/**
3300	* Does the state change callouts.
3301	*
3302	* The caller owns the AtStateCritSect.
3303	*
3304	* @param pVM Pointer to the VM.
3305	* @param pUVM The UVM handle.
3306	* @param enmStateNew The New state.
3307	* @param enmStateOld The old state.
3308	*/
3309	static void vmR3DoAtState(PVM pVM, PUVM pUVM, VMSTATE enmStateNew, VMSTATE enmStateOld)
3310	{
3311	LogRel(("Changing the VM state from '%s' to '%s'\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)));
3312
3313	for (PVMATSTATE pCur = pUVM->vm.s.pAtState; pCur; pCur = pCur->pNext)
3314	{
3315	pCur->pfnAtState(pUVM, enmStateNew, enmStateOld, pCur->pvUser);
3316	if ( enmStateNew != VMSTATE_DESTROYING
3317	&& pVM->enmVMState == VMSTATE_DESTROYING)
3318	break;
3319	AssertMsg(pVM->enmVMState == enmStateNew,
3320	("You are not allowed to change the state while in the change callback, except "
3321	"from destroying the VM. There are restrictions in the way the state changes "
3322	"are propagated up to the EM execution loop and it makes the program flow very "
3323	"difficult to follow. (%s, expected %s, old %s)\n",
3324	VMR3GetStateName(pVM->enmVMState), VMR3GetStateName(enmStateNew),
3325	VMR3GetStateName(enmStateOld)));
3326	}
3327	}
3328
3329
3330	/**
3331	* Sets the current VM state, with the AtStatCritSect already entered.
3332	*
3333	* @param pVM Pointer to the VM.
3334	* @param pUVM The UVM handle.
3335	* @param enmStateNew The new state.
3336	* @param enmStateOld The old state.
3337	*/
3338	static void vmR3SetStateLocked(PVM pVM, PUVM pUVM, VMSTATE enmStateNew, VMSTATE enmStateOld)
3339	{
3340	vmR3ValidateStateTransition(enmStateOld, enmStateNew);
3341
3342	AssertMsg(pVM->enmVMState == enmStateOld,
3343	("%s != %s\n", VMR3GetStateName(pVM->enmVMState), VMR3GetStateName(enmStateOld)));
3344	pUVM->vm.s.enmPrevVMState = enmStateOld;
3345	pVM->enmVMState = enmStateNew;
3346	VM_FF_CLEAR(pVM, VM_FF_CHECK_VM_STATE);
3347
3348	vmR3DoAtState(pVM, pUVM, enmStateNew, enmStateOld);
3349	}
3350
3351
3352	/**
3353	* Sets the current VM state.
3354	*
3355	* @param pVM Pointer to the VM.
3356	* @param enmStateNew The new state.
3357	* @param enmStateOld The old state (for asserting only).
3358	*/
3359	static void vmR3SetState(PVM pVM, VMSTATE enmStateNew, VMSTATE enmStateOld)
3360	{
3361	PUVM pUVM = pVM->pUVM;
3362	RTCritSectEnter(&pUVM->vm.s.AtStateCritSect);
3363
3364	AssertMsg(pVM->enmVMState == enmStateOld,
3365	("%s != %s\n", VMR3GetStateName(pVM->enmVMState), VMR3GetStateName(enmStateOld)));
3366	vmR3SetStateLocked(pVM, pUVM, enmStateNew, pVM->enmVMState);
3367
3368	RTCritSectLeave(&pUVM->vm.s.AtStateCritSect);
3369	}
3370
3371
3372	/**
3373	* Tries to perform a state transition.
3374	*
3375	* @returns The 1-based ordinal of the succeeding transition.
3376	* VERR_VM_INVALID_VM_STATE and Assert+LogRel on failure.
3377	*
3378	* @param pVM Pointer to the VM.
3379	* @param pszWho Who is trying to change it.
3380	* @param cTransitions The number of transitions in the ellipsis.
3381	* @param ... Transition pairs; new, old.
3382	*/
3383	static int vmR3TrySetState(PVM pVM, const char *pszWho, unsigned cTransitions, ...)
3384	{
3385	va_list va;
3386	VMSTATE enmStateNew = VMSTATE_CREATED;
3387	VMSTATE enmStateOld = VMSTATE_CREATED;
3388
3389	#ifdef VBOX_STRICT
3390	/*
3391	* Validate the input first.
3392	*/
3393	va_start(va, cTransitions);
3394	for (unsigned i = 0; i < cTransitions; i++)
3395	{
3396	enmStateNew = (VMSTATE)va_arg(va, /VMSTATE/int);
3397	enmStateOld = (VMSTATE)va_arg(va, /VMSTATE/int);
3398	vmR3ValidateStateTransition(enmStateOld, enmStateNew);
3399	}
3400	va_end(va);
3401	#endif
3402
3403	/*
3404	* Grab the lock and see if any of the proposed transitions works out.
3405	*/
3406	va_start(va, cTransitions);
3407	int rc = VERR_VM_INVALID_VM_STATE;
3408	PUVM pUVM = pVM->pUVM;
3409	RTCritSectEnter(&pUVM->vm.s.AtStateCritSect);
3410
3411	VMSTATE enmStateCur = pVM->enmVMState;
3412
3413	for (unsigned i = 0; i < cTransitions; i++)
3414	{
3415	enmStateNew = (VMSTATE)va_arg(va, /VMSTATE/int);
3416	enmStateOld = (VMSTATE)va_arg(va, /VMSTATE/int);
3417	if (enmStateCur == enmStateOld)
3418	{
3419	vmR3SetStateLocked(pVM, pUVM, enmStateNew, enmStateOld);
3420	rc = i + 1;
3421	break;
3422	}
3423	}
3424
3425	if (RT_FAILURE(rc))
3426	{
3427	/*
3428	* Complain about it.
3429	*/
3430	if (cTransitions == 1)
3431	{
3432	LogRel(("%s: %s -> %s failed, because the VM state is actually %s\n",
3433	pszWho, VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew), VMR3GetStateName(enmStateCur)));
3434	VMSetError(pVM, VERR_VM_INVALID_VM_STATE, RT_SRC_POS,
3435	N_("%s failed because the VM state is %s instead of %s"),
3436	pszWho, VMR3GetStateName(enmStateCur), VMR3GetStateName(enmStateOld));
3437	AssertMsgFailed(("%s: %s -> %s failed, because the VM state is actually %s\n",
3438	pszWho, VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew), VMR3GetStateName(enmStateCur)));
3439	}
3440	else
3441	{
3442	va_end(va);
3443	va_start(va, cTransitions);
3444	LogRel(("%s:\n", pszWho));
3445	for (unsigned i = 0; i < cTransitions; i++)
3446	{
3447	enmStateNew = (VMSTATE)va_arg(va, /VMSTATE/int);
3448	enmStateOld = (VMSTATE)va_arg(va, /VMSTATE/int);
3449	LogRel(("%s%s -> %s",
3450	i ? ", " : " ", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)));
3451	}
3452	LogRel((" failed, because the VM state is actually %s\n", VMR3GetStateName(enmStateCur)));
3453	VMSetError(pVM, VERR_VM_INVALID_VM_STATE, RT_SRC_POS,
3454	N_("%s failed because the current VM state, %s, was not found in the state transition table"),
3455	pszWho, VMR3GetStateName(enmStateCur), VMR3GetStateName(enmStateOld));
3456	AssertMsgFailed(("%s - state=%s, see release log for full details. Check the cTransitions passed us.\n",
3457	pszWho, VMR3GetStateName(enmStateCur)));
3458	}
3459	}
3460
3461	RTCritSectLeave(&pUVM->vm.s.AtStateCritSect);
3462	va_end(va);
3463	Assert(rc > 0 \|\| rc < 0);
3464	return rc;
3465	}
3466
3467
3468	/**
3469	* Flag a guru meditation ... a hack.
3470	*
3471	* @param pVM Pointer to the VM.
3472	*
3473	* @todo Rewrite this part. The guru meditation should be flagged
3474	* immediately by the VMM and not by VMEmt.cpp when it's all over.
3475	*/
3476	void vmR3SetGuruMeditation(PVM pVM)
3477	{
3478	PUVM pUVM = pVM->pUVM;
3479	RTCritSectEnter(&pUVM->vm.s.AtStateCritSect);
3480
3481	VMSTATE enmStateCur = pVM->enmVMState;
3482	if (enmStateCur == VMSTATE_RUNNING)
3483	vmR3SetStateLocked(pVM, pUVM, VMSTATE_GURU_MEDITATION, VMSTATE_RUNNING);
3484	else if (enmStateCur == VMSTATE_RUNNING_LS)
3485	{
3486	vmR3SetStateLocked(pVM, pUVM, VMSTATE_GURU_MEDITATION_LS, VMSTATE_RUNNING_LS);
3487	SSMR3Cancel(pUVM);
3488	}
3489
3490	RTCritSectLeave(&pUVM->vm.s.AtStateCritSect);
3491	}
3492
3493
3494	/**
3495	* Called by vmR3EmulationThreadWithId just before the VM structure is freed.
3496	*
3497	* @param pVM Pointer to the VM.
3498	*/
3499	void vmR3SetTerminated(PVM pVM)
3500	{
3501	vmR3SetState(pVM, VMSTATE_TERMINATED, VMSTATE_DESTROYING);
3502	}
3503
3504
3505	/**
3506	* Checks if the VM was teleported and hasn't been fully resumed yet.
3507	*
3508	* This applies to both sides of the teleportation since we may leave a working
3509	* clone behind and the user is allowed to resume this...
3510	*
3511	* @returns true / false.
3512	* @param pVM Pointer to the VM.
3513	* @thread Any thread.
3514	*/
3515	VMMR3_INT_DECL(bool) VMR3TeleportedAndNotFullyResumedYet(PVM pVM)
3516	{
3517	VM_ASSERT_VALID_EXT_RETURN(pVM, false);
3518	return pVM->vm.s.fTeleportedAndNotFullyResumedYet;
3519	}
3520
3521
3522	/**
3523	* Registers a VM state change callback.
3524	*
3525	* You are not allowed to call any function which changes the VM state from a
3526	* state callback.
3527	*
3528	* @returns VBox status code.
3529	* @param pUVM The VM handle.
3530	* @param pfnAtState Pointer to callback.
3531	* @param pvUser User argument.
3532	* @thread Any.
3533	*/
3534	VMMR3DECL(int) VMR3AtStateRegister(PUVM pUVM, PFNVMATSTATE pfnAtState, void *pvUser)
3535	{
3536	LogFlow(("VMR3AtStateRegister: pfnAtState=%p pvUser=%p\n", pfnAtState, pvUser));
3537
3538	/*
3539	* Validate input.
3540	*/
3541	AssertPtrReturn(pfnAtState, VERR_INVALID_PARAMETER);
3542	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
3543
3544	/*
3545	* Allocate a new record.
3546	*/
3547	PVMATSTATE pNew = (PVMATSTATE)MMR3HeapAllocU(pUVM, MM_TAG_VM, sizeof(*pNew));
3548	if (!pNew)
3549	return VERR_NO_MEMORY;
3550
3551	/* fill */
3552	pNew->pfnAtState = pfnAtState;
3553	pNew->pvUser = pvUser;
3554
3555	/* insert */
3556	RTCritSectEnter(&pUVM->vm.s.AtStateCritSect);
3557	pNew->pNext = *pUVM->vm.s.ppAtStateNext;
3558	*pUVM->vm.s.ppAtStateNext = pNew;
3559	pUVM->vm.s.ppAtStateNext = &pNew->pNext;
3560	RTCritSectLeave(&pUVM->vm.s.AtStateCritSect);
3561
3562	return VINF_SUCCESS;
3563	}
3564
3565
3566	/**
3567	* Deregisters a VM state change callback.
3568	*
3569	* @returns VBox status code.
3570	* @param pUVM The VM handle.
3571	* @param pfnAtState Pointer to callback.
3572	* @param pvUser User argument.
3573	* @thread Any.
3574	*/
3575	VMMR3DECL(int) VMR3AtStateDeregister(PUVM pUVM, PFNVMATSTATE pfnAtState, void *pvUser)
3576	{
3577	LogFlow(("VMR3AtStateDeregister: pfnAtState=%p pvUser=%p\n", pfnAtState, pvUser));
3578
3579	/*
3580	* Validate input.
3581	*/
3582	AssertPtrReturn(pfnAtState, VERR_INVALID_PARAMETER);
3583	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
3584
3585	RTCritSectEnter(&pUVM->vm.s.AtStateCritSect);
3586
3587	/*
3588	* Search the list for the entry.
3589	*/
3590	PVMATSTATE pPrev = NULL;
3591	PVMATSTATE pCur = pUVM->vm.s.pAtState;
3592	while ( pCur
3593	&& ( pCur->pfnAtState != pfnAtState
3594	\|\| pCur->pvUser != pvUser))
3595	{
3596	pPrev = pCur;
3597	pCur = pCur->pNext;
3598	}
3599	if (!pCur)
3600	{
3601	AssertMsgFailed(("pfnAtState=%p was not found\n", pfnAtState));
3602	RTCritSectLeave(&pUVM->vm.s.AtStateCritSect);
3603	return VERR_FILE_NOT_FOUND;
3604	}
3605
3606	/*
3607	* Unlink it.
3608	*/
3609	if (pPrev)
3610	{
3611	pPrev->pNext = pCur->pNext;
3612	if (!pCur->pNext)
3613	pUVM->vm.s.ppAtStateNext = &pPrev->pNext;
3614	}
3615	else
3616	{
3617	pUVM->vm.s.pAtState = pCur->pNext;
3618	if (!pCur->pNext)
3619	pUVM->vm.s.ppAtStateNext = &pUVM->vm.s.pAtState;
3620	}
3621
3622	RTCritSectLeave(&pUVM->vm.s.AtStateCritSect);
3623
3624	/*
3625	* Free it.
3626	*/
3627	pCur->pfnAtState = NULL;
3628	pCur->pNext = NULL;
3629	MMR3HeapFree(pCur);
3630
3631	return VINF_SUCCESS;
3632	}
3633
3634
3635	/**
3636	* Registers a VM error callback.
3637	*
3638	* @returns VBox status code.
3639	* @param pUVM The VM handle.
3640	* @param pfnAtError Pointer to callback.
3641	* @param pvUser User argument.
3642	* @thread Any.
3643	*/
3644	VMMR3DECL(int) VMR3AtErrorRegister(PUVM pUVM, PFNVMATERROR pfnAtError, void *pvUser)
3645	{
3646	LogFlow(("VMR3AtErrorRegister: pfnAtError=%p pvUser=%p\n", pfnAtError, pvUser));
3647
3648	/*
3649	* Validate input.
3650	*/
3651	AssertPtrReturn(pfnAtError, VERR_INVALID_PARAMETER);
3652	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
3653
3654	/*
3655	* Allocate a new record.
3656	*/
3657	PVMATERROR pNew = (PVMATERROR)MMR3HeapAllocU(pUVM, MM_TAG_VM, sizeof(*pNew));
3658	if (!pNew)
3659	return VERR_NO_MEMORY;
3660
3661	/* fill */
3662	pNew->pfnAtError = pfnAtError;
3663	pNew->pvUser = pvUser;
3664
3665	/* insert */
3666	RTCritSectEnter(&pUVM->vm.s.AtErrorCritSect);
3667	pNew->pNext = *pUVM->vm.s.ppAtErrorNext;
3668	*pUVM->vm.s.ppAtErrorNext = pNew;
3669	pUVM->vm.s.ppAtErrorNext = &pNew->pNext;
3670	RTCritSectLeave(&pUVM->vm.s.AtErrorCritSect);
3671
3672	return VINF_SUCCESS;
3673	}
3674
3675
3676	/**
3677	* Deregisters a VM error callback.
3678	*
3679	* @returns VBox status code.
3680	* @param pUVM The VM handle.
3681	* @param pfnAtError Pointer to callback.
3682	* @param pvUser User argument.
3683	* @thread Any.
3684	*/
3685	VMMR3DECL(int) VMR3AtErrorDeregister(PUVM pUVM, PFNVMATERROR pfnAtError, void *pvUser)
3686	{
3687	LogFlow(("VMR3AtErrorDeregister: pfnAtError=%p pvUser=%p\n", pfnAtError, pvUser));
3688
3689	/*
3690	* Validate input.
3691	*/
3692	AssertPtrReturn(pfnAtError, VERR_INVALID_PARAMETER);
3693	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
3694
3695	RTCritSectEnter(&pUVM->vm.s.AtErrorCritSect);
3696
3697	/*
3698	* Search the list for the entry.
3699	*/
3700	PVMATERROR pPrev = NULL;
3701	PVMATERROR pCur = pUVM->vm.s.pAtError;
3702	while ( pCur
3703	&& ( pCur->pfnAtError != pfnAtError
3704	\|\| pCur->pvUser != pvUser))
3705	{
3706	pPrev = pCur;
3707	pCur = pCur->pNext;
3708	}
3709	if (!pCur)
3710	{
3711	AssertMsgFailed(("pfnAtError=%p was not found\n", pfnAtError));
3712	RTCritSectLeave(&pUVM->vm.s.AtErrorCritSect);
3713	return VERR_FILE_NOT_FOUND;
3714	}
3715
3716	/*
3717	* Unlink it.
3718	*/
3719	if (pPrev)
3720	{
3721	pPrev->pNext = pCur->pNext;
3722	if (!pCur->pNext)
3723	pUVM->vm.s.ppAtErrorNext = &pPrev->pNext;
3724	}
3725	else
3726	{
3727	pUVM->vm.s.pAtError = pCur->pNext;
3728	if (!pCur->pNext)
3729	pUVM->vm.s.ppAtErrorNext = &pUVM->vm.s.pAtError;
3730	}
3731
3732	RTCritSectLeave(&pUVM->vm.s.AtErrorCritSect);
3733
3734	/*
3735	* Free it.
3736	*/
3737	pCur->pfnAtError = NULL;
3738	pCur->pNext = NULL;
3739	MMR3HeapFree(pCur);
3740
3741	return VINF_SUCCESS;
3742	}
3743
3744
3745	/**
3746	* Ellipsis to va_list wrapper for calling pfnAtError.
3747	*/
3748	static void vmR3SetErrorWorkerDoCall(PVM pVM, PVMATERROR pCur, int rc, RT_SRC_POS_DECL, const char *pszFormat, ...)
3749	{
3750	va_list va;
3751	va_start(va, pszFormat);
3752	pCur->pfnAtError(pVM->pUVM, pCur->pvUser, rc, RT_SRC_POS_ARGS, pszFormat, va);
3753	va_end(va);
3754	}
3755
3756
3757	/**
3758	* This is a worker function for GC and Ring-0 calls to VMSetError and VMSetErrorV.
3759	* The message is found in VMINT.
3760	*
3761	* @param pVM Pointer to the VM.
3762	* @thread EMT.
3763	*/
3764	VMMR3_INT_DECL(void) VMR3SetErrorWorker(PVM pVM)
3765	{
3766	VM_ASSERT_EMT(pVM);
3767	AssertReleaseMsgFailed(("And we have a winner! You get to implement Ring-0 and GC VMSetErrorV! Congrats!\n"));
3768
3769	/*
3770	* Unpack the error (if we managed to format one).
3771	*/
3772	PVMERROR pErr = pVM->vm.s.pErrorR3;
3773	const char *pszFile = NULL;
3774	const char *pszFunction = NULL;
3775	uint32_t iLine = 0;
3776	const char *pszMessage;
3777	int32_t rc = VERR_MM_HYPER_NO_MEMORY;
3778	if (pErr)
3779	{
3780	AssertCompile(sizeof(const char) == sizeof(uint8_t));
3781	if (pErr->offFile)
3782	pszFile = (const char *)pErr + pErr->offFile;
3783	iLine = pErr->iLine;
3784	if (pErr->offFunction)
3785	pszFunction = (const char *)pErr + pErr->offFunction;
3786	if (pErr->offMessage)
3787	pszMessage = (const char *)pErr + pErr->offMessage;
3788	else
3789	pszMessage = "No message!";
3790	}
3791	else
3792	pszMessage = "No message! (Failed to allocate memory to put the error message in!)";
3793
3794	/*
3795	* Call the at error callbacks.
3796	*/
3797	PUVM pUVM = pVM->pUVM;
3798	RTCritSectEnter(&pUVM->vm.s.AtErrorCritSect);
3799	ASMAtomicIncU32(&pUVM->vm.s.cRuntimeErrors);
3800	for (PVMATERROR pCur = pUVM->vm.s.pAtError; pCur; pCur = pCur->pNext)
3801	vmR3SetErrorWorkerDoCall(pVM, pCur, rc, RT_SRC_POS_ARGS, "%s", pszMessage);
3802	RTCritSectLeave(&pUVM->vm.s.AtErrorCritSect);
3803	}
3804
3805
3806	/**
3807	* Gets the number of errors raised via VMSetError.
3808	*
3809	* This can be used avoid double error messages.
3810	*
3811	* @returns The error count.
3812	* @param pUVM The VM handle.
3813	*/
3814	VMMR3_INT_DECL(uint32_t) VMR3GetErrorCount(PUVM pUVM)
3815	{
3816	AssertPtrReturn(pUVM, 0);
3817	AssertReturn(pUVM->u32Magic == UVM_MAGIC, 0);
3818	return pUVM->vm.s.cErrors;
3819	}
3820
3821
3822	/**
3823	* Creation time wrapper for vmR3SetErrorUV.
3824	*
3825	* @returns rc.
3826	* @param pUVM Pointer to the user mode VM structure.
3827	* @param rc The VBox status code.
3828	* @param RT_SRC_POS_DECL The source position of this error.
3829	* @param pszFormat Format string.
3830	* @param ... The arguments.
3831	* @thread Any thread.
3832	*/
3833	static int vmR3SetErrorU(PUVM pUVM, int rc, RT_SRC_POS_DECL, const char *pszFormat, ...)
3834	{
3835	va_list va;
3836	va_start(va, pszFormat);
3837	vmR3SetErrorUV(pUVM, rc, pszFile, iLine, pszFunction, pszFormat, &va);
3838	va_end(va);
3839	return rc;
3840	}
3841
3842
3843	/**
3844	* Worker which calls everyone listening to the VM error messages.
3845	*
3846	* @param pUVM Pointer to the user mode VM structure.
3847	* @param rc The VBox status code.
3848	* @param RT_SRC_POS_DECL The source position of this error.
3849	* @param pszFormat Format string.
3850	* @param pArgs Pointer to the format arguments.
3851	* @thread EMT
3852	*/
3853	DECLCALLBACK(void) vmR3SetErrorUV(PUVM pUVM, int rc, RT_SRC_POS_DECL, const char pszFormat, va_list pArgs)
3854	{
3855	/*
3856	* Log the error.
3857	*/
3858	va_list va3;
3859	va_copy(va3, *pArgs);
3860	RTLogRelPrintf("VMSetError: %s(%d) %s; rc=%Rrc\n"
3861	"VMSetError: %N\n",
3862	pszFile, iLine, pszFunction, rc,
3863	pszFormat, &va3);
3864	va_end(va3);
3865
3866	#ifdef LOG_ENABLED
3867	va_copy(va3, *pArgs);
3868	RTLogPrintf("VMSetError: %s(%d) %s; rc=%Rrc\n"
3869	"%N\n",
3870	pszFile, iLine, pszFunction, rc,
3871	pszFormat, &va3);
3872	va_end(va3);
3873	#endif
3874
3875	/*
3876	* Make a copy of the message.
3877	*/
3878	if (pUVM->pVM)
3879	vmSetErrorCopy(pUVM->pVM, rc, RT_SRC_POS_ARGS, pszFormat, *pArgs);
3880
3881	/*
3882	* Call the at error callbacks.
3883	*/
3884	bool fCalledSomeone = false;
3885	RTCritSectEnter(&pUVM->vm.s.AtErrorCritSect);
3886	ASMAtomicIncU32(&pUVM->vm.s.cErrors);
3887	for (PVMATERROR pCur = pUVM->vm.s.pAtError; pCur; pCur = pCur->pNext)
3888	{
3889	va_list va2;
3890	va_copy(va2, *pArgs);
3891	pCur->pfnAtError(pUVM, pCur->pvUser, rc, RT_SRC_POS_ARGS, pszFormat, va2);
3892	va_end(va2);
3893	fCalledSomeone = true;
3894	}
3895	RTCritSectLeave(&pUVM->vm.s.AtErrorCritSect);
3896	}
3897
3898
3899	/**
3900	* Sets the error message.
3901	*
3902	* @returns rc. Meaning you can do:
3903	* @code
3904	* return VM_SET_ERROR_U(pUVM, VERR_OF_YOUR_CHOICE, "descriptive message");
3905	* @endcode
3906	* @param pUVM The user mode VM handle.
3907	* @param rc VBox status code.
3908	* @param RT_SRC_POS_DECL Use RT_SRC_POS.
3909	* @param pszFormat Error message format string.
3910	* @param ... Error message arguments.
3911	* @thread Any
3912	*/
3913	VMMR3DECL(int) VMR3SetError(PUVM pUVM, int rc, RT_SRC_POS_DECL, const char *pszFormat, ...)
3914	{
3915	va_list va;
3916	va_start(va, pszFormat);
3917	int rcRet = VMR3SetErrorV(pUVM, rc, pszFile, iLine, pszFunction, pszFormat, va);
3918	va_end(va);
3919	return rcRet;
3920	}
3921
3922
3923	/**
3924	* Sets the error message.
3925	*
3926	* @returns rc. Meaning you can do:
3927	* @code
3928	* return VM_SET_ERROR_U(pUVM, VERR_OF_YOUR_CHOICE, "descriptive message");
3929	* @endcode
3930	* @param pUVM The user mode VM handle.
3931	* @param rc VBox status code.
3932	* @param RT_SRC_POS_DECL Use RT_SRC_POS.
3933	* @param pszFormat Error message format string.
3934	* @param va Error message arguments.
3935	* @thread Any
3936	*/
3937	VMMR3DECL(int) VMR3SetErrorV(PUVM pUVM, int rc, RT_SRC_POS_DECL, const char *pszFormat, va_list va)
3938	{
3939	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
3940	VM_ASSERT_VALID_EXT_RETURN(pUVM->pVM, VERR_INVALID_VM_HANDLE);
3941	return VMSetErrorV(pUVM->pVM, rc, pszFile, iLine, pszFunction, pszFormat, va);
3942	}
3943
3944
3945
3946	/**
3947	* Registers a VM runtime error callback.
3948	*
3949	* @returns VBox status code.
3950	* @param pVM Pointer to the VM.
3951	* @param pfnAtRuntimeError Pointer to callback.
3952	* @param pvUser User argument.
3953	* @thread Any.
3954	*/
3955	VMMR3DECL(int) VMR3AtRuntimeErrorRegister(PUVM pUVM, PFNVMATRUNTIMEERROR pfnAtRuntimeError, void *pvUser)
3956	{
3957	LogFlow(("VMR3AtRuntimeErrorRegister: pfnAtRuntimeError=%p pvUser=%p\n", pfnAtRuntimeError, pvUser));
3958
3959	/*
3960	* Validate input.
3961	*/
3962	AssertPtrReturn(pfnAtRuntimeError, VERR_INVALID_PARAMETER);
3963	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
3964
3965	/*
3966	* Allocate a new record.
3967	*/
3968	PVMATRUNTIMEERROR pNew = (PVMATRUNTIMEERROR)MMR3HeapAllocU(pUVM, MM_TAG_VM, sizeof(*pNew));
3969	if (!pNew)
3970	return VERR_NO_MEMORY;
3971
3972	/* fill */
3973	pNew->pfnAtRuntimeError = pfnAtRuntimeError;
3974	pNew->pvUser = pvUser;
3975
3976	/* insert */
3977	RTCritSectEnter(&pUVM->vm.s.AtErrorCritSect);
3978	pNew->pNext = *pUVM->vm.s.ppAtRuntimeErrorNext;
3979	*pUVM->vm.s.ppAtRuntimeErrorNext = pNew;
3980	pUVM->vm.s.ppAtRuntimeErrorNext = &pNew->pNext;
3981	RTCritSectLeave(&pUVM->vm.s.AtErrorCritSect);
3982
3983	return VINF_SUCCESS;
3984	}
3985
3986
3987	/**
3988	* Deregisters a VM runtime error callback.
3989	*
3990	* @returns VBox status code.
3991	* @param pUVM The user mode VM handle.
3992	* @param pfnAtRuntimeError Pointer to callback.
3993	* @param pvUser User argument.
3994	* @thread Any.
3995	*/
3996	VMMR3DECL(int) VMR3AtRuntimeErrorDeregister(PUVM pUVM, PFNVMATRUNTIMEERROR pfnAtRuntimeError, void *pvUser)
3997	{
3998	LogFlow(("VMR3AtRuntimeErrorDeregister: pfnAtRuntimeError=%p pvUser=%p\n", pfnAtRuntimeError, pvUser));
3999
4000	/*
4001	* Validate input.
4002	*/
4003	AssertPtrReturn(pfnAtRuntimeError, VERR_INVALID_PARAMETER);
4004	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
4005
4006	RTCritSectEnter(&pUVM->vm.s.AtErrorCritSect);
4007
4008	/*
4009	* Search the list for the entry.
4010	*/
4011	PVMATRUNTIMEERROR pPrev = NULL;
4012	PVMATRUNTIMEERROR pCur = pUVM->vm.s.pAtRuntimeError;
4013	while ( pCur
4014	&& ( pCur->pfnAtRuntimeError != pfnAtRuntimeError
4015	\|\| pCur->pvUser != pvUser))
4016	{
4017	pPrev = pCur;
4018	pCur = pCur->pNext;
4019	}
4020	if (!pCur)
4021	{
4022	AssertMsgFailed(("pfnAtRuntimeError=%p was not found\n", pfnAtRuntimeError));
4023	RTCritSectLeave(&pUVM->vm.s.AtErrorCritSect);
4024	return VERR_FILE_NOT_FOUND;
4025	}
4026
4027	/*
4028	* Unlink it.
4029	*/
4030	if (pPrev)
4031	{
4032	pPrev->pNext = pCur->pNext;
4033	if (!pCur->pNext)
4034	pUVM->vm.s.ppAtRuntimeErrorNext = &pPrev->pNext;
4035	}
4036	else
4037	{
4038	pUVM->vm.s.pAtRuntimeError = pCur->pNext;
4039	if (!pCur->pNext)
4040	pUVM->vm.s.ppAtRuntimeErrorNext = &pUVM->vm.s.pAtRuntimeError;
4041	}
4042
4043	RTCritSectLeave(&pUVM->vm.s.AtErrorCritSect);
4044
4045	/*
4046	* Free it.
4047	*/
4048	pCur->pfnAtRuntimeError = NULL;
4049	pCur->pNext = NULL;
4050	MMR3HeapFree(pCur);
4051
4052	return VINF_SUCCESS;
4053	}
4054
4055
4056	/**
4057	* EMT rendezvous worker that vmR3SetRuntimeErrorCommon uses to safely change
4058	* the state to FatalError(LS).
4059	*
4060	* @returns VERR_VM_INVALID_VM_STATE or VINF_EM_SUSPEND. (This is a strict
4061	* return code, see FNVMMEMTRENDEZVOUS.)
4062	*
4063	* @param pVM Pointer to the VM.
4064	* @param pVCpu Pointer to the VMCPU of the EMT.
4065	* @param pvUser Ignored.
4066	*/
4067	static DECLCALLBACK(VBOXSTRICTRC) vmR3SetRuntimeErrorChangeState(PVM pVM, PVMCPU pVCpu, void *pvUser)
4068	{
4069	NOREF(pVCpu);
4070	Assert(!pvUser); NOREF(pvUser);
4071
4072	/*
4073	* The first EMT thru here changes the state.
4074	*/
4075	if (pVCpu->idCpu == pVM->cCpus - 1)
4076	{
4077	int rc = vmR3TrySetState(pVM, "VMSetRuntimeError", 2,
4078	VMSTATE_FATAL_ERROR, VMSTATE_RUNNING,
4079	VMSTATE_FATAL_ERROR_LS, VMSTATE_RUNNING_LS);
4080	if (RT_FAILURE(rc))
4081	return rc;
4082	if (rc == 2)
4083	SSMR3Cancel(pVM->pUVM);
4084
4085	VM_FF_SET(pVM, VM_FF_CHECK_VM_STATE);
4086	}
4087
4088	/* This'll make sure we get out of whereever we are (e.g. REM). */
4089	return VINF_EM_SUSPEND;
4090	}
4091
4092
4093	/**
4094	* Worker for VMR3SetRuntimeErrorWorker and vmR3SetRuntimeErrorV.
4095	*
4096	* This does the common parts after the error has been saved / retrieved.
4097	*
4098	* @returns VBox status code with modifications, see VMSetRuntimeErrorV.
4099	*
4100	* @param pVM Pointer to the VM.
4101	* @param fFlags The error flags.
4102	* @param pszErrorId Error ID string.
4103	* @param pszFormat Format string.
4104	* @param pVa Pointer to the format arguments.
4105	*/
4106	static int vmR3SetRuntimeErrorCommon(PVM pVM, uint32_t fFlags, const char pszErrorId, const char pszFormat, va_list *pVa)
4107	{
4108	LogRel(("VM: Raising runtime error '%s' (fFlags=%#x)\n", pszErrorId, fFlags));
4109	PUVM pUVM = pVM->pUVM;
4110
4111	/*
4112	* Take actions before the call.
4113	*/
4114	int rc;
4115	if (fFlags & VMSETRTERR_FLAGS_FATAL)
4116	rc = VMMR3EmtRendezvous(pVM, VMMEMTRENDEZVOUS_FLAGS_TYPE_DESCENDING \| VMMEMTRENDEZVOUS_FLAGS_STOP_ON_ERROR,
4117	vmR3SetRuntimeErrorChangeState, NULL);
4118	else if (fFlags & VMSETRTERR_FLAGS_SUSPEND)
4119	rc = VMR3Suspend(pUVM, VMSUSPENDREASON_RUNTIME_ERROR);
4120	else
4121	rc = VINF_SUCCESS;
4122
4123	/*
4124	* Do the callback round.
4125	*/
4126	RTCritSectEnter(&pUVM->vm.s.AtErrorCritSect);
4127	ASMAtomicIncU32(&pUVM->vm.s.cRuntimeErrors);
4128	for (PVMATRUNTIMEERROR pCur = pUVM->vm.s.pAtRuntimeError; pCur; pCur = pCur->pNext)
4129	{
4130	va_list va;
4131	va_copy(va, *pVa);
4132	pCur->pfnAtRuntimeError(pUVM, pCur->pvUser, fFlags, pszErrorId, pszFormat, va);
4133	va_end(va);
4134	}
4135	RTCritSectLeave(&pUVM->vm.s.AtErrorCritSect);
4136
4137	return rc;
4138	}
4139
4140
4141	/**
4142	* Ellipsis to va_list wrapper for calling vmR3SetRuntimeErrorCommon.
4143	*/
4144	static int vmR3SetRuntimeErrorCommonF(PVM pVM, uint32_t fFlags, const char pszErrorId, const char pszFormat, ...)
4145	{
4146	va_list va;
4147	va_start(va, pszFormat);
4148	int rc = vmR3SetRuntimeErrorCommon(pVM, fFlags, pszErrorId, pszFormat, &va);
4149	va_end(va);
4150	return rc;
4151	}
4152
4153
4154	/**
4155	* This is a worker function for RC and Ring-0 calls to VMSetError and
4156	* VMSetErrorV.
4157	*
4158	* The message is found in VMINT.
4159	*
4160	* @returns VBox status code, see VMSetRuntimeError.
4161	* @param pVM Pointer to the VM.
4162	* @thread EMT.
4163	*/
4164	VMMR3_INT_DECL(int) VMR3SetRuntimeErrorWorker(PVM pVM)
4165	{
4166	VM_ASSERT_EMT(pVM);
4167	AssertReleaseMsgFailed(("And we have a winner! You get to implement Ring-0 and GC VMSetRuntimeErrorV! Congrats!\n"));
4168
4169	/*
4170	* Unpack the error (if we managed to format one).
4171	*/
4172	const char *pszErrorId = "SetRuntimeError";
4173	const char *pszMessage = "No message!";
4174	uint32_t fFlags = VMSETRTERR_FLAGS_FATAL;
4175	PVMRUNTIMEERROR pErr = pVM->vm.s.pRuntimeErrorR3;
4176	if (pErr)
4177	{
4178	AssertCompile(sizeof(const char) == sizeof(uint8_t));
4179	if (pErr->offErrorId)
4180	pszErrorId = (const char *)pErr + pErr->offErrorId;
4181	if (pErr->offMessage)
4182	pszMessage = (const char *)pErr + pErr->offMessage;
4183	fFlags = pErr->fFlags;
4184	}
4185
4186	/*
4187	* Join cause with vmR3SetRuntimeErrorV.
4188	*/
4189	return vmR3SetRuntimeErrorCommonF(pVM, fFlags, pszErrorId, "%s", pszMessage);
4190	}
4191
4192
4193	/**
4194	* Worker for VMSetRuntimeErrorV for doing the job on EMT in ring-3.
4195	*
4196	* @returns VBox status code with modifications, see VMSetRuntimeErrorV.
4197	*
4198	* @param pVM Pointer to the VM.
4199	* @param fFlags The error flags.
4200	* @param pszErrorId Error ID string.
4201	* @param pszMessage The error message residing the MM heap.
4202	*
4203	* @thread EMT
4204	*/
4205	DECLCALLBACK(int) vmR3SetRuntimeError(PVM pVM, uint32_t fFlags, const char pszErrorId, char pszMessage)
4206	{
4207	#if 0 /** @todo make copy of the error msg. */
4208	/*
4209	* Make a copy of the message.
4210	*/
4211	va_list va2;
4212	va_copy(va2, *pVa);
4213	vmSetRuntimeErrorCopy(pVM, fFlags, pszErrorId, pszFormat, va2);
4214	va_end(va2);
4215	#endif
4216
4217	/*
4218	* Join paths with VMR3SetRuntimeErrorWorker.
4219	*/
4220	int rc = vmR3SetRuntimeErrorCommonF(pVM, fFlags, pszErrorId, "%s", pszMessage);
4221	MMR3HeapFree(pszMessage);
4222	return rc;
4223	}
4224
4225
4226	/**
4227	* Worker for VMSetRuntimeErrorV for doing the job on EMT in ring-3.
4228	*
4229	* @returns VBox status code with modifications, see VMSetRuntimeErrorV.
4230	*
4231	* @param pVM Pointer to the VM.
4232	* @param fFlags The error flags.
4233	* @param pszErrorId Error ID string.
4234	* @param pszFormat Format string.
4235	* @param pVa Pointer to the format arguments.
4236	*
4237	* @thread EMT
4238	*/
4239	DECLCALLBACK(int) vmR3SetRuntimeErrorV(PVM pVM, uint32_t fFlags, const char pszErrorId, const char pszFormat, va_list *pVa)
4240	{
4241	/*
4242	* Make a copy of the message.
4243	*/
4244	va_list va2;
4245	va_copy(va2, *pVa);
4246	vmSetRuntimeErrorCopy(pVM, fFlags, pszErrorId, pszFormat, va2);
4247	va_end(va2);
4248
4249	/*
4250	* Join paths with VMR3SetRuntimeErrorWorker.
4251	*/
4252	return vmR3SetRuntimeErrorCommon(pVM, fFlags, pszErrorId, pszFormat, pVa);
4253	}
4254
4255
4256	/**
4257	* Gets the number of runtime errors raised via VMR3SetRuntimeError.
4258	*
4259	* This can be used avoid double error messages.
4260	*
4261	* @returns The runtime error count.
4262	* @param pUVM The user mode VM handle.
4263	*/
4264	VMMR3_INT_DECL(uint32_t) VMR3GetRuntimeErrorCount(PUVM pUVM)
4265	{
4266	return pUVM->vm.s.cRuntimeErrors;
4267	}
4268
4269
4270	/**
4271	* Gets the ID virtual of the virtual CPU associated with the calling thread.
4272	*
4273	* @returns The CPU ID. NIL_VMCPUID if the thread isn't an EMT.
4274	*
4275	* @param pVM Pointer to the VM.
4276	*/
4277	VMMR3_INT_DECL(RTCPUID) VMR3GetVMCPUId(PVM pVM)
4278	{
4279	PUVMCPU pUVCpu = (PUVMCPU)RTTlsGet(pVM->pUVM->vm.s.idxTLS);
4280	return pUVCpu
4281	? pUVCpu->idCpu
4282	: NIL_VMCPUID;
4283	}
4284
4285
4286	/**
4287	* Checks if the VM is long-mode (64-bit) capable or not.
4288	* @returns true if VM can operate in long-mode, false
4289	* otherwise.
4290	*
4291	* @param pVM Pointer to the VM.
4292	*/
4293	VMMR3_INT_DECL(bool) VMR3IsLongModeAllowed(PVM pVM)
4294	{
4295	if (HMIsEnabled(pVM))
4296	return HMIsLongModeAllowed(pVM);
4297	return false;
4298	}
4299
4300
4301	/**
4302	* Returns the native handle of the current EMT VMCPU thread.
4303	*
4304	* @returns Handle if this is an EMT thread; NIL_RTNATIVETHREAD otherwise
4305	* @param pVM Pointer to the VM.
4306	* @thread EMT
4307	*/
4308	VMMR3DECL(RTNATIVETHREAD) VMR3GetVMCPUNativeThread(PVM pVM)
4309	{
4310	PUVMCPU pUVCpu = (PUVMCPU)RTTlsGet(pVM->pUVM->vm.s.idxTLS);
4311
4312	if (!pUVCpu)
4313	return NIL_RTNATIVETHREAD;
4314
4315	return pUVCpu->vm.s.NativeThreadEMT;
4316	}
4317
4318
4319	/**
4320	* Returns the native handle of the current EMT VMCPU thread.
4321	*
4322	* @returns Handle if this is an EMT thread; NIL_RTNATIVETHREAD otherwise
4323	* @param pVM Pointer to the VM.
4324	* @thread EMT
4325	*/
4326	VMMR3DECL(RTNATIVETHREAD) VMR3GetVMCPUNativeThreadU(PUVM pUVM)
4327	{
4328	PUVMCPU pUVCpu = (PUVMCPU)RTTlsGet(pUVM->vm.s.idxTLS);
4329
4330	if (!pUVCpu)
4331	return NIL_RTNATIVETHREAD;
4332
4333	return pUVCpu->vm.s.NativeThreadEMT;
4334	}
4335
4336
4337	/**
4338	* Returns the handle of the current EMT VMCPU thread.
4339	*
4340	* @returns Handle if this is an EMT thread; NIL_RTNATIVETHREAD otherwise
4341	* @param pUVM The user mode VM handle.
4342	* @thread EMT
4343	*/
4344	VMMR3DECL(RTTHREAD) VMR3GetVMCPUThread(PUVM pUVM)
4345	{
4346	PUVMCPU pUVCpu = (PUVMCPU)RTTlsGet(pUVM->vm.s.idxTLS);
4347
4348	if (!pUVCpu)
4349	return NIL_RTTHREAD;
4350
4351	return pUVCpu->vm.s.ThreadEMT;
4352	}
4353
4354
4355	/**
4356	* Return the package and core ID of a CPU.
4357	*
4358	* @returns VBOX status code.
4359	* @param pUVM The user mode VM handle.
4360	* @param idCpu Virtual CPU to get the ID from.
4361	* @param pidCpuCore Where to store the core ID of the virtual CPU.
4362	* @param pidCpuPackage Where to store the package ID of the virtual CPU.
4363	*
4364	*/
4365	VMMR3DECL(int) VMR3GetCpuCoreAndPackageIdFromCpuId(PUVM pUVM, VMCPUID idCpu, uint32_t pidCpuCore, uint32_t pidCpuPackage)
4366	{
4367	/*
4368	* Validate input.
4369	*/
4370	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
4371	PVM pVM = pUVM->pVM;
4372	VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
4373	AssertPtrReturn(pidCpuCore, VERR_INVALID_POINTER);
4374	AssertPtrReturn(pidCpuPackage, VERR_INVALID_POINTER);
4375	if (idCpu >= pVM->cCpus)
4376	return VERR_INVALID_CPU_ID;
4377
4378	/*
4379	* Set return values.
4380	*/
4381	#ifdef VBOX_WITH_MULTI_CORE
4382	*pidCpuCore = idCpu;
4383	*pidCpuPackage = 0;
4384	#else
4385	*pidCpuCore = 0;
4386	*pidCpuPackage = idCpu;
4387	#endif
4388
4389	return VINF_SUCCESS;
4390	}
4391
4392
4393	/**
4394	* Worker for VMR3HotUnplugCpu.
4395	*
4396	* @returns VINF_EM_WAIT_SPIP (strict status code).
4397	* @param pVM Pointer to the VM.
4398	* @param idCpu The current CPU.
4399	*/
4400	static DECLCALLBACK(int) vmR3HotUnplugCpu(PVM pVM, VMCPUID idCpu)
4401	{
4402	PVMCPU pVCpu = VMMGetCpuById(pVM, idCpu);
4403	VMCPU_ASSERT_EMT(pVCpu);
4404
4405	/*
4406	* Reset per CPU resources.
4407	*
4408	* Actually only needed for VT-x because the CPU seems to be still in some
4409	* paged mode and startup fails after a new hot plug event. SVM works fine
4410	* even without this.
4411	*/
4412	Log(("vmR3HotUnplugCpu for VCPU %u\n", idCpu));
4413	PGMR3ResetCpu(pVM, pVCpu);
4414	PDMR3ResetCpu(pVCpu);
4415	TRPMR3ResetCpu(pVCpu);
4416	CPUMR3ResetCpu(pVM, pVCpu);
4417	EMR3ResetCpu(pVCpu);
4418	HMR3ResetCpu(pVCpu);
4419	return VINF_EM_WAIT_SIPI;
4420	}
4421
4422
4423	/**
4424	* Hot-unplugs a CPU from the guest.
4425	*
4426	* @returns VBox status code.
4427	* @param pUVM The user mode VM handle.
4428	* @param idCpu Virtual CPU to perform the hot unplugging operation on.
4429	*/
4430	VMMR3DECL(int) VMR3HotUnplugCpu(PUVM pUVM, VMCPUID idCpu)
4431	{
4432	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
4433	PVM pVM = pUVM->pVM;
4434	VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
4435	AssertReturn(idCpu < pVM->cCpus, VERR_INVALID_CPU_ID);
4436
4437	/** @todo r=bird: Don't destroy the EMT, it'll break VMMR3EmtRendezvous and
4438	* broadcast requests. Just note down somewhere that the CPU is
4439	* offline and send it to SPIP wait. Maybe modify VMCPUSTATE and push
4440	* it out of the EM loops when offline. */
4441	return VMR3ReqCallNoWaitU(pUVM, idCpu, (PFNRT)vmR3HotUnplugCpu, 2, pVM, idCpu);
4442	}
4443
4444
4445	/**
4446	* Hot-plugs a CPU on the guest.
4447	*
4448	* @returns VBox status code.
4449	* @param pUVM The user mode VM handle.
4450	* @param idCpu Virtual CPU to perform the hot plugging operation on.
4451	*/
4452	VMMR3DECL(int) VMR3HotPlugCpu(PUVM pUVM, VMCPUID idCpu)
4453	{
4454	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
4455	PVM pVM = pUVM->pVM;
4456	VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
4457	AssertReturn(idCpu < pVM->cCpus, VERR_INVALID_CPU_ID);
4458
4459	/** @todo r-bird: Just mark it online and make sure it waits on SPIP. */
4460	return VINF_SUCCESS;
4461	}
4462
4463
4464	/**
4465	* Changes the VMM execution cap.
4466	*
4467	* @returns VBox status code.
4468	* @param pVM Pointer to the VM.
4469	* @param uCpuExecutionCap New CPU execution cap in precent, 1-100. Where
4470	* 100 is max performance (default).
4471	*/
4472	VMMR3DECL(int) VMR3SetCpuExecutionCap(PUVM pUVM, uint32_t uCpuExecutionCap)
4473	{
4474	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
4475	PVM pVM = pUVM->pVM;
4476	VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
4477	AssertReturn(uCpuExecutionCap > 0 && uCpuExecutionCap <= 100, VERR_INVALID_PARAMETER);
4478
4479	Log(("VMR3SetCpuExecutionCap: new priority = %d\n", uCpuExecutionCap));
4480	/* Note: not called from EMT. */
4481	pVM->uCpuExecutionCap = uCpuExecutionCap;
4482	return VINF_SUCCESS;
4483	}
4484
4485
4486	/**
4487	* Control whether the VM should power off when resetting.
4488	*
4489	* @returns VBox status code.
4490	* @param pUVM The user mode VM handle.
4491	* @param fPowerOffInsteadOfReset Flag whether the VM should power off when
4492	* resetting.
4493	*/
4494	VMMR3DECL(int) VMR3SetPowerOffInsteadOfReset(PUVM pUVM, bool fPowerOffInsteadOfReset)
4495	{
4496	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
4497	PVM pVM = pUVM->pVM;
4498	VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
4499
4500	/* Note: not called from EMT. */
4501	pVM->vm.s.fPowerOffInsteadOfReset = fPowerOffInsteadOfReset;
4502	return VINF_SUCCESS;
4503	}
4504

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source: vbox/trunk/src/VBox/VMM/VMMR3/VM.cpp@ 54763

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