VM.cpp@ 73494

Last change on this file since 73494 was 73351, checked in by vboxsync, 6 years ago
VBoxGuest,VMMDev,DBGF,VM: Added bug check report to VBoxGuest/VMMDev and hooked it up to DBGF. Made DBGF remember the last reported bug check, adding an info handler for displaying it. Added VM reset counters w/ getters for use in bug check reporting.
Property svn:eol-style set to `native` Property svn:keywords set to `Id Revision`
File size: 170.6 KB

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1	/* $Id: VM.cpp 73351 2018-07-25 13:02:11Z vboxsync $ */
2	/** @file
3	* VM - Virtual Machine
4	*/
5
6	/*
7	* Copyright (C) 2006-2017 Oracle Corporation
8	*
9	* This file is part of VirtualBox Open Source Edition (OSE), as
10	* available from http://www.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	/*********************************************************************************************************************************
43	* Header Files *
44	*********************************************************************************************************************************/
45	#define LOG_GROUP LOG_GROUP_VM
46	#include <VBox/vmm/cfgm.h>
47	#include <VBox/vmm/vmm.h>
48	#include <VBox/vmm/gvmm.h>
49	#include <VBox/vmm/mm.h>
50	#include <VBox/vmm/cpum.h>
51	#include <VBox/vmm/selm.h>
52	#include <VBox/vmm/trpm.h>
53	#include <VBox/vmm/dbgf.h>
54	#include <VBox/vmm/pgm.h>
55	#include <VBox/vmm/pdmapi.h>
56	#include <VBox/vmm/pdmdev.h>
57	#include <VBox/vmm/pdmcritsect.h>
58	#include <VBox/vmm/em.h>
59	#include <VBox/vmm/iem.h>
60	#ifdef VBOX_WITH_REM
61	# include <VBox/vmm/rem.h>
62	#endif
63	#include <VBox/vmm/nem.h>
64	#include <VBox/vmm/apic.h>
65	#include <VBox/vmm/tm.h>
66	#include <VBox/vmm/stam.h>
67	#include <VBox/vmm/patm.h>
68	#include <VBox/vmm/csam.h>
69	#include <VBox/vmm/iom.h>
70	#include <VBox/vmm/ssm.h>
71	#include <VBox/vmm/ftm.h>
72	#include <VBox/vmm/hm.h>
73	#include <VBox/vmm/gim.h>
74	#include "VMInternal.h"
75	#include <VBox/vmm/vm.h>
76	#include <VBox/vmm/uvm.h>
77
78	#include <VBox/sup.h>
79	#if defined(VBOX_WITH_DTRACE_R3) && !defined(VBOX_WITH_NATIVE_DTRACE)
80	# include <VBox/VBoxTpG.h>
81	#endif
82	#include <VBox/dbg.h>
83	#include <VBox/err.h>
84	#include <VBox/param.h>
85	#include <VBox/log.h>
86	#include <iprt/assert.h>
87	#include <iprt/alloc.h>
88	#include <iprt/asm.h>
89	#include <iprt/env.h>
90	#include <iprt/string.h>
91	#include <iprt/time.h>
92	#include <iprt/semaphore.h>
93	#include <iprt/thread.h>
94	#include <iprt/uuid.h>
95
96
97	/*********************************************************************************************************************************
98	* Internal Functions *
99	*********************************************************************************************************************************/
100	static int vmR3CreateUVM(uint32_t cCpus, PCVMM2USERMETHODS pVmm2UserMethods, PUVM *ppUVM);
101	static int vmR3CreateU(PUVM pUVM, uint32_t cCpus, PFNCFGMCONSTRUCTOR pfnCFGMConstructor, void *pvUserCFGM);
102	static int vmR3ReadBaseConfig(PVM pVM, PUVM pUVM, uint32_t cCpus);
103	static int vmR3InitRing3(PVM pVM, PUVM pUVM);
104	static int vmR3InitRing0(PVM pVM);
105	#ifdef VBOX_WITH_RAW_MODE
106	static int vmR3InitRC(PVM pVM);
107	#endif
108	static int vmR3InitDoCompleted(PVM pVM, VMINITCOMPLETED enmWhat);
109	static void vmR3DestroyUVM(PUVM pUVM, uint32_t cMilliesEMTWait);
110	static bool vmR3ValidateStateTransition(VMSTATE enmStateOld, VMSTATE enmStateNew);
111	static void vmR3DoAtState(PVM pVM, PUVM pUVM, VMSTATE enmStateNew, VMSTATE enmStateOld);
112	static int vmR3TrySetState(PVM pVM, const char *pszWho, unsigned cTransitions, ...);
113	static void vmR3SetStateLocked(PVM pVM, PUVM pUVM, VMSTATE enmStateNew, VMSTATE enmStateOld, bool fSetRatherThanClearFF);
114	static void vmR3SetState(PVM pVM, VMSTATE enmStateNew, VMSTATE enmStateOld);
115	static int vmR3SetErrorU(PUVM pUVM, int rc, RT_SRC_POS_DECL, const char *pszFormat, ...) RT_IPRT_FORMAT_ATTR(6, 7);
116
117
118	/**
119	* Do global VMM init.
120	*
121	* @returns VBox status code.
122	*/
123	VMMR3DECL(int) VMR3GlobalInit(void)
124	{
125	/*
126	* Only once.
127	*/
128	static bool volatile s_fDone = false;
129	if (s_fDone)
130	return VINF_SUCCESS;
131
132	#if defined(VBOX_WITH_DTRACE_R3) && !defined(VBOX_WITH_NATIVE_DTRACE)
133	SUPR3TracerRegisterModule(~(uintptr_t)0, "VBoxVMM", &g_VTGObjHeader, (uintptr_t)&g_VTGObjHeader,
134	SUP_TRACER_UMOD_FLAGS_SHARED);
135	#endif
136
137	/*
138	* We're done.
139	*/
140	s_fDone = true;
141	return VINF_SUCCESS;
142	}
143
144
145	/**
146	* Creates a virtual machine by calling the supplied configuration constructor.
147	*
148	* On successful returned the VM is powered, i.e. VMR3PowerOn() should be
149	* called to start the execution.
150	*
151	* @returns 0 on success.
152	* @returns VBox error code on failure.
153	* @param cCpus Number of virtual CPUs for the new VM.
154	* @param pVmm2UserMethods An optional method table that the VMM can use
155	* to make the user perform various action, like
156	* for instance state saving.
157	* @param pfnVMAtError Pointer to callback function for setting VM
158	* errors. This was added as an implicit call to
159	* VMR3AtErrorRegister() since there is no way the
160	* caller can get to the VM handle early enough to
161	* do this on its own.
162	* This is called in the context of an EMT.
163	* @param pvUserVM The user argument passed to pfnVMAtError.
164	* @param pfnCFGMConstructor Pointer to callback function for constructing the VM configuration tree.
165	* This is called in the context of an EMT0.
166	* @param pvUserCFGM The user argument passed to pfnCFGMConstructor.
167	* @param ppVM Where to optionally store the 'handle' of the
168	* created VM.
169	* @param ppUVM Where to optionally store the user 'handle' of
170	* the created VM, this includes one reference as
171	* if VMR3RetainUVM() was called. The caller
172	* MUST remember to pass the returned value to
173	* VMR3ReleaseUVM() once done with the handle.
174	*/
175	VMMR3DECL(int) VMR3Create(uint32_t cCpus, PCVMM2USERMETHODS pVmm2UserMethods,
176	PFNVMATERROR pfnVMAtError, void *pvUserVM,
177	PFNCFGMCONSTRUCTOR pfnCFGMConstructor, void *pvUserCFGM,
178	PVM ppVM, PUVM ppUVM)
179	{
180	LogFlow(("VMR3Create: cCpus=%RU32 pVmm2UserMethods=%p pfnVMAtError=%p pvUserVM=%p pfnCFGMConstructor=%p pvUserCFGM=%p ppVM=%p ppUVM=%p\n",
181	cCpus, pVmm2UserMethods, pfnVMAtError, pvUserVM, pfnCFGMConstructor, pvUserCFGM, ppVM, ppUVM));
182
183	if (pVmm2UserMethods)
184	{
185	AssertPtrReturn(pVmm2UserMethods, VERR_INVALID_POINTER);
186	AssertReturn(pVmm2UserMethods->u32Magic == VMM2USERMETHODS_MAGIC, VERR_INVALID_PARAMETER);
187	AssertReturn(pVmm2UserMethods->u32Version == VMM2USERMETHODS_VERSION, VERR_INVALID_PARAMETER);
188	AssertPtrNullReturn(pVmm2UserMethods->pfnSaveState, VERR_INVALID_POINTER);
189	AssertPtrNullReturn(pVmm2UserMethods->pfnNotifyEmtInit, VERR_INVALID_POINTER);
190	AssertPtrNullReturn(pVmm2UserMethods->pfnNotifyEmtTerm, VERR_INVALID_POINTER);
191	AssertPtrNullReturn(pVmm2UserMethods->pfnNotifyPdmtInit, VERR_INVALID_POINTER);
192	AssertPtrNullReturn(pVmm2UserMethods->pfnNotifyPdmtTerm, VERR_INVALID_POINTER);
193	AssertPtrNullReturn(pVmm2UserMethods->pfnNotifyResetTurnedIntoPowerOff, VERR_INVALID_POINTER);
194	AssertReturn(pVmm2UserMethods->u32EndMagic == VMM2USERMETHODS_MAGIC, VERR_INVALID_PARAMETER);
195	}
196	AssertPtrNullReturn(pfnVMAtError, VERR_INVALID_POINTER);
197	AssertPtrNullReturn(pfnCFGMConstructor, VERR_INVALID_POINTER);
198	AssertPtrNullReturn(ppVM, VERR_INVALID_POINTER);
199	AssertPtrNullReturn(ppUVM, VERR_INVALID_POINTER);
200	AssertReturn(ppVM \|\| ppUVM, VERR_INVALID_PARAMETER);
201
202	/*
203	* Because of the current hackiness of the applications
204	* we'll have to initialize global stuff from here.
205	* Later the applications will take care of this in a proper way.
206	*/
207	static bool fGlobalInitDone = false;
208	if (!fGlobalInitDone)
209	{
210	int rc = VMR3GlobalInit();
211	if (RT_FAILURE(rc))
212	return rc;
213	fGlobalInitDone = true;
214	}
215
216	/*
217	* Validate input.
218	*/
219	AssertLogRelMsgReturn(cCpus > 0 && cCpus <= VMM_MAX_CPU_COUNT, ("%RU32\n", cCpus), VERR_TOO_MANY_CPUS);
220
221	/*
222	* Create the UVM so we can register the at-error callback
223	* and consolidate a bit of cleanup code.
224	*/
225	PUVM pUVM = NULL; /* shuts up gcc */
226	int rc = vmR3CreateUVM(cCpus, pVmm2UserMethods, &pUVM);
227	if (RT_FAILURE(rc))
228	return rc;
229	if (pfnVMAtError)
230	rc = VMR3AtErrorRegister(pUVM, pfnVMAtError, pvUserVM);
231	if (RT_SUCCESS(rc))
232	{
233	/*
234	* Initialize the support library creating the session for this VM.
235	*/
236	rc = SUPR3Init(&pUVM->vm.s.pSession);
237	if (RT_SUCCESS(rc))
238	{
239	/*
240	* Call vmR3CreateU in the EMT thread and wait for it to finish.
241	*
242	* Note! VMCPUID_ANY is used here because VMR3ReqQueueU would have trouble
243	* submitting a request to a specific VCPU without a pVM. So, to make
244	* sure init is running on EMT(0), vmR3EmulationThreadWithId makes sure
245	* that only EMT(0) is servicing VMCPUID_ANY requests when pVM is NULL.
246	*/
247	PVMREQ pReq;
248	rc = VMR3ReqCallU(pUVM, VMCPUID_ANY, &pReq, RT_INDEFINITE_WAIT, VMREQFLAGS_VBOX_STATUS,
249	(PFNRT)vmR3CreateU, 4, pUVM, cCpus, pfnCFGMConstructor, pvUserCFGM);
250	if (RT_SUCCESS(rc))
251	{
252	rc = pReq->iStatus;
253	VMR3ReqFree(pReq);
254	if (RT_SUCCESS(rc))
255	{
256	/*
257	* Success!
258	*/
259	if (ppVM)
260	*ppVM = pUVM->pVM;
261	if (ppUVM)
262	{
263	VMR3RetainUVM(pUVM);
264	*ppUVM = pUVM;
265	}
266	LogFlow(("VMR3Create: returns VINF_SUCCESS (pVM=%p, pUVM=%p\n", pUVM->pVM, pUVM));
267	return VINF_SUCCESS;
268	}
269	}
270	else
271	AssertMsgFailed(("VMR3ReqCallU failed rc=%Rrc\n", rc));
272
273	/*
274	* An error occurred during VM creation. Set the error message directly
275	* using the initial callback, as the callback list might not exist yet.
276	*/
277	const char *pszError;
278	switch (rc)
279	{
280	case VERR_VMX_IN_VMX_ROOT_MODE:
281	#ifdef RT_OS_LINUX
282	pszError = N_("VirtualBox can't operate in VMX root mode. "
283	"Please disable the KVM kernel extension, recompile your kernel and reboot");
284	#else
285	pszError = N_("VirtualBox can't operate in VMX root mode. Please close all other virtualization programs.");
286	#endif
287	break;
288
289	#ifndef RT_OS_DARWIN
290	case VERR_HM_CONFIG_MISMATCH:
291	pszError = N_("VT-x/AMD-V is either not available on your host or disabled. "
292	"This hardware extension is required by the VM configuration");
293	break;
294	#endif
295
296	case VERR_SVM_IN_USE:
297	#ifdef RT_OS_LINUX
298	pszError = N_("VirtualBox can't enable the AMD-V extension. "
299	"Please disable the KVM kernel extension, recompile your kernel and reboot");
300	#else
301	pszError = N_("VirtualBox can't enable the AMD-V extension. Please close all other virtualization programs.");
302	#endif
303	break;
304
305	#ifdef RT_OS_LINUX
306	case VERR_SUPDRV_COMPONENT_NOT_FOUND:
307	pszError = N_("One of the kernel modules was not successfully loaded. Make sure "
308	"that no kernel modules from an older version of VirtualBox exist. "
309	"Then try to recompile and reload the kernel modules by executing "
310	"'/sbin/vboxconfig' as root");
311	break;
312	#endif
313
314	case VERR_RAW_MODE_INVALID_SMP:
315	pszError = N_("VT-x/AMD-V is either not available on your host or disabled. "
316	"VirtualBox requires this hardware extension to emulate more than one "
317	"guest CPU");
318	break;
319
320	case VERR_SUPDRV_KERNEL_TOO_OLD_FOR_VTX:
321	#ifdef RT_OS_LINUX
322	pszError = N_("Because the host kernel is too old, VirtualBox cannot enable the VT-x "
323	"extension. Either upgrade your kernel to Linux 2.6.13 or later or disable "
324	"the VT-x extension in the VM settings. Note that without VT-x you have "
325	"to reduce the number of guest CPUs to one");
326	#else
327	pszError = N_("Because the host kernel is too old, VirtualBox cannot enable the VT-x "
328	"extension. Either upgrade your kernel or disable the VT-x extension in the "
329	"VM settings. Note that without VT-x you have to reduce the number of guest "
330	"CPUs to one");
331	#endif
332	break;
333
334	case VERR_PDM_DEVICE_NOT_FOUND:
335	pszError = N_("A virtual device is configured in the VM settings but the device "
336	"implementation is missing.\n"
337	"A possible reason for this error is a missing extension pack. Note "
338	"that as of VirtualBox 4.0, certain features (for example USB 2.0 "
339	"support and remote desktop) are only available from an 'extension "
340	"pack' which must be downloaded and installed separately");
341	break;
342
343	case VERR_PCI_PASSTHROUGH_NO_HM:
344	pszError = N_("PCI passthrough requires VT-x/AMD-V");
345	break;
346
347	case VERR_PCI_PASSTHROUGH_NO_NESTED_PAGING:
348	pszError = N_("PCI passthrough requires nested paging");
349	break;
350
351	default:
352	if (VMR3GetErrorCount(pUVM) == 0)
353	pszError = RTErrGetFull(rc);
354	else
355	pszError = NULL; /* already set. */
356	break;
357	}
358	if (pszError)
359	vmR3SetErrorU(pUVM, rc, RT_SRC_POS, pszError, rc);
360	}
361	else
362	{
363	/*
364	* An error occurred at support library initialization time (before the
365	* VM could be created). Set the error message directly using the
366	* initial callback, as the callback list doesn't exist yet.
367	*/
368	const char *pszError;
369	switch (rc)
370	{
371	case VERR_VM_DRIVER_LOAD_ERROR:
372	#ifdef RT_OS_LINUX
373	pszError = N_("VirtualBox kernel driver not loaded. The vboxdrv kernel module "
374	"was either not loaded or /dev/vboxdrv is not set up properly. "
375	"Re-setup the kernel module by executing "
376	"'/sbin/vboxconfig' as root");
377	#else
378	pszError = N_("VirtualBox kernel driver not loaded");
379	#endif
380	break;
381	case VERR_VM_DRIVER_OPEN_ERROR:
382	pszError = N_("VirtualBox kernel driver cannot be opened");
383	break;
384	case VERR_VM_DRIVER_NOT_ACCESSIBLE:
385	#ifdef VBOX_WITH_HARDENING
386	/* This should only happen if the executable wasn't hardened - bad code/build. */
387	pszError = N_("VirtualBox kernel driver not accessible, permission problem. "
388	"Re-install VirtualBox. If you are building it yourself, you "
389	"should make sure it installed correctly and that the setuid "
390	"bit is set on the executables calling VMR3Create.");
391	#else
392	/* This should only happen when mixing builds or with the usual /dev/vboxdrv access issues. */
393	# if defined(RT_OS_DARWIN)
394	pszError = N_("VirtualBox KEXT is not accessible, permission problem. "
395	"If you have built VirtualBox yourself, make sure that you do not "
396	"have the vboxdrv KEXT from a different build or installation loaded.");
397	# elif defined(RT_OS_LINUX)
398	pszError = N_("VirtualBox kernel driver is not accessible, permission problem. "
399	"If you have built VirtualBox yourself, make sure that you do "
400	"not have the vboxdrv kernel module from a different build or "
401	"installation loaded. Also, make sure the vboxdrv udev rule gives "
402	"you the permission you need to access the device.");
403	# elif defined(RT_OS_WINDOWS)
404	pszError = N_("VirtualBox kernel driver is not accessible, permission problem.");
405	# else /* solaris, freebsd, ++. */
406	pszError = N_("VirtualBox kernel module is not accessible, permission problem. "
407	"If you have built VirtualBox yourself, make sure that you do "
408	"not have the vboxdrv kernel module from a different install loaded.");
409	# endif
410	#endif
411	break;
412	case VERR_INVALID_HANDLE: /** @todo track down and fix this error. */
413	case VERR_VM_DRIVER_NOT_INSTALLED:
414	#ifdef RT_OS_LINUX
415	pszError = N_("VirtualBox kernel driver not installed. The vboxdrv kernel module "
416	"was either not loaded or /dev/vboxdrv was not created for some "
417	"reason. Re-setup the kernel module by executing "
418	"'/sbin/vboxconfig' as root");
419	#else
420	pszError = N_("VirtualBox kernel driver not installed");
421	#endif
422	break;
423	case VERR_NO_MEMORY:
424	pszError = N_("VirtualBox support library out of memory");
425	break;
426	case VERR_VERSION_MISMATCH:
427	case VERR_VM_DRIVER_VERSION_MISMATCH:
428	pszError = N_("The VirtualBox support driver which is running is from a different "
429	"version of VirtualBox. You can correct this by stopping all "
430	"running instances of VirtualBox and reinstalling the software.");
431	break;
432	default:
433	pszError = N_("Unknown error initializing kernel driver");
434	AssertMsgFailed(("Add error message for rc=%d (%Rrc)\n", rc, rc));
435	}
436	vmR3SetErrorU(pUVM, rc, RT_SRC_POS, pszError, rc);
437	}
438	}
439
440	/* cleanup */
441	vmR3DestroyUVM(pUVM, 2000);
442	LogFlow(("VMR3Create: returns %Rrc\n", rc));
443	return rc;
444	}
445
446
447	/**
448	* Creates the UVM.
449	*
450	* This will not initialize the support library even if vmR3DestroyUVM
451	* will terminate that.
452	*
453	* @returns VBox status code.
454	* @param cCpus Number of virtual CPUs
455	* @param pVmm2UserMethods Pointer to the optional VMM -> User method
456	* table.
457	* @param ppUVM Where to store the UVM pointer.
458	*/
459	static int vmR3CreateUVM(uint32_t cCpus, PCVMM2USERMETHODS pVmm2UserMethods, PUVM *ppUVM)
460	{
461	uint32_t i;
462
463	/*
464	* Create and initialize the UVM.
465	*/
466	PUVM pUVM = (PUVM)RTMemPageAllocZ(RT_UOFFSETOF_DYN(UVM, aCpus[cCpus]));
467	AssertReturn(pUVM, VERR_NO_MEMORY);
468	pUVM->u32Magic = UVM_MAGIC;
469	pUVM->cCpus = cCpus;
470	pUVM->pVmm2UserMethods = pVmm2UserMethods;
471
472	AssertCompile(sizeof(pUVM->vm.s) <= sizeof(pUVM->vm.padding));
473
474	pUVM->vm.s.cUvmRefs = 1;
475	pUVM->vm.s.ppAtStateNext = &pUVM->vm.s.pAtState;
476	pUVM->vm.s.ppAtErrorNext = &pUVM->vm.s.pAtError;
477	pUVM->vm.s.ppAtRuntimeErrorNext = &pUVM->vm.s.pAtRuntimeError;
478
479	pUVM->vm.s.enmHaltMethod = VMHALTMETHOD_BOOTSTRAP;
480	RTUuidClear(&pUVM->vm.s.Uuid);
481
482	/* Initialize the VMCPU array in the UVM. */
483	for (i = 0; i < cCpus; i++)
484	{
485	pUVM->aCpus[i].pUVM = pUVM;
486	pUVM->aCpus[i].idCpu = i;
487	}
488
489	/* Allocate a TLS entry to store the VMINTUSERPERVMCPU pointer. */
490	int rc = RTTlsAllocEx(&pUVM->vm.s.idxTLS, NULL);
491	AssertRC(rc);
492	if (RT_SUCCESS(rc))
493	{
494	/* Allocate a halt method event semaphore for each VCPU. */
495	for (i = 0; i < cCpus; i++)
496	pUVM->aCpus[i].vm.s.EventSemWait = NIL_RTSEMEVENT;
497	for (i = 0; i < cCpus; i++)
498	{
499	rc = RTSemEventCreate(&pUVM->aCpus[i].vm.s.EventSemWait);
500	if (RT_FAILURE(rc))
501	break;
502	}
503	if (RT_SUCCESS(rc))
504	{
505	rc = RTCritSectInit(&pUVM->vm.s.AtStateCritSect);
506	if (RT_SUCCESS(rc))
507	{
508	rc = RTCritSectInit(&pUVM->vm.s.AtErrorCritSect);
509	if (RT_SUCCESS(rc))
510	{
511	/*
512	* Init fundamental (sub-)components - STAM, MMR3Heap and PDMLdr.
513	*/
514	rc = PDMR3InitUVM(pUVM);
515	if (RT_SUCCESS(rc))
516	{
517	rc = STAMR3InitUVM(pUVM);
518	if (RT_SUCCESS(rc))
519	{
520	rc = MMR3InitUVM(pUVM);
521	if (RT_SUCCESS(rc))
522	{
523	/*
524	* Start the emulation threads for all VMCPUs.
525	*/
526	for (i = 0; i < cCpus; i++)
527	{
528	rc = RTThreadCreateF(&pUVM->aCpus[i].vm.s.ThreadEMT, vmR3EmulationThread, &pUVM->aCpus[i],
529	_1M, RTTHREADTYPE_EMULATION, RTTHREADFLAGS_WAITABLE,
530	cCpus > 1 ? "EMT-%u" : "EMT", i);
531	if (RT_FAILURE(rc))
532	break;
533
534	pUVM->aCpus[i].vm.s.NativeThreadEMT = RTThreadGetNative(pUVM->aCpus[i].vm.s.ThreadEMT);
535	}
536
537	if (RT_SUCCESS(rc))
538	{
539	*ppUVM = pUVM;
540	return VINF_SUCCESS;
541	}
542
543	/* bail out. */
544	while (i-- > 0)
545	{
546	/** @todo rainy day: terminate the EMTs. */
547	}
548	MMR3TermUVM(pUVM);
549	}
550	STAMR3TermUVM(pUVM);
551	}
552	PDMR3TermUVM(pUVM);
553	}
554	RTCritSectDelete(&pUVM->vm.s.AtErrorCritSect);
555	}
556	RTCritSectDelete(&pUVM->vm.s.AtStateCritSect);
557	}
558	}
559	for (i = 0; i < cCpus; i++)
560	{
561	RTSemEventDestroy(pUVM->aCpus[i].vm.s.EventSemWait);
562	pUVM->aCpus[i].vm.s.EventSemWait = NIL_RTSEMEVENT;
563	}
564	RTTlsFree(pUVM->vm.s.idxTLS);
565	}
566	RTMemPageFree(pUVM, RT_UOFFSETOF_DYN(UVM, aCpus[pUVM->cCpus]));
567	return rc;
568	}
569
570
571	/**
572	* Creates and initializes the VM.
573	*
574	* @thread EMT
575	*/
576	static int vmR3CreateU(PUVM pUVM, uint32_t cCpus, PFNCFGMCONSTRUCTOR pfnCFGMConstructor, void *pvUserCFGM)
577	{
578	#if (defined(RT_ARCH_AMD64) \|\| defined(RT_ARCH_X86)) && !defined(VBOX_WITH_OLD_CPU_SUPPORT)
579	/*
580	* Require SSE2 to be present (already checked for in supdrv, so we
581	* shouldn't ever really get here).
582	*/
583	if (!(ASMCpuId_EDX(1) & X86_CPUID_FEATURE_EDX_SSE2))
584	{
585	LogRel(("vboxdrv: Requires SSE2 (cpuid(0).EDX=%#x)\n", ASMCpuId_EDX(1)));
586	return VERR_UNSUPPORTED_CPU;
587	}
588	#endif
589
590	/*
591	* Load the VMMR0.r0 module so that we can call GVMMR0CreateVM.
592	*/
593	int rc = PDMR3LdrLoadVMMR0U(pUVM);
594	if (RT_FAILURE(rc))
595	{
596	/** @todo we need a cleaner solution for this (VERR_VMX_IN_VMX_ROOT_MODE).
597	* bird: what about moving the message down here? Main picks the first message, right? */
598	if (rc == VERR_VMX_IN_VMX_ROOT_MODE)
599	return rc; /* proper error message set later on */
600	return vmR3SetErrorU(pUVM, rc, RT_SRC_POS, N_("Failed to load VMMR0.r0"));
601	}
602
603	/*
604	* Request GVMM to create a new VM for us.
605	*/
606	GVMMCREATEVMREQ CreateVMReq;
607	CreateVMReq.Hdr.u32Magic = SUPVMMR0REQHDR_MAGIC;
608	CreateVMReq.Hdr.cbReq = sizeof(CreateVMReq);
609	CreateVMReq.pSession = pUVM->vm.s.pSession;
610	CreateVMReq.pVMR0 = NIL_RTR0PTR;
611	CreateVMReq.pVMR3 = NULL;
612	CreateVMReq.cCpus = cCpus;
613	rc = SUPR3CallVMMR0Ex(NIL_RTR0PTR, NIL_VMCPUID, VMMR0_DO_GVMM_CREATE_VM, 0, &CreateVMReq.Hdr);
614	if (RT_SUCCESS(rc))
615	{
616	PVM pVM = pUVM->pVM = CreateVMReq.pVMR3;
617	AssertRelease(VALID_PTR(pVM));
618	AssertRelease(pVM->pVMR0 == CreateVMReq.pVMR0);
619	AssertRelease(pVM->pSession == pUVM->vm.s.pSession);
620	AssertRelease(pVM->cCpus == cCpus);
621	AssertRelease(pVM->uCpuExecutionCap == 100);
622	AssertRelease(pVM->offVMCPU == RT_UOFFSETOF(VM, aCpus));
623	AssertCompileMemberAlignment(VM, cpum, 64);
624	AssertCompileMemberAlignment(VM, tm, 64);
625	AssertCompileMemberAlignment(VM, aCpus, PAGE_SIZE);
626
627	Log(("VMR3Create: Created pUVM=%p pVM=%p pVMR0=%p hSelf=%#x cCpus=%RU32\n",
628	pUVM, pVM, pVM->pVMR0, pVM->hSelf, pVM->cCpus));
629
630	/*
631	* Initialize the VM structure and our internal data (VMINT).
632	*/
633	pVM->pUVM = pUVM;
634
635	for (VMCPUID i = 0; i < pVM->cCpus; i++)
636	{
637	pVM->aCpus[i].pUVCpu = &pUVM->aCpus[i];
638	pVM->aCpus[i].idCpu = i;
639	pVM->aCpus[i].hNativeThread = pUVM->aCpus[i].vm.s.NativeThreadEMT;
640	Assert(pVM->aCpus[i].hNativeThread != NIL_RTNATIVETHREAD);
641	/* hNativeThreadR0 is initialized on EMT registration. */
642	pUVM->aCpus[i].pVCpu = &pVM->aCpus[i];
643	pUVM->aCpus[i].pVM = pVM;
644	}
645
646
647	/*
648	* Init the configuration.
649	*/
650	rc = CFGMR3Init(pVM, pfnCFGMConstructor, pvUserCFGM);
651	if (RT_SUCCESS(rc))
652	{
653	rc = vmR3ReadBaseConfig(pVM, pUVM, cCpus);
654	if (RT_SUCCESS(rc))
655	{
656	/*
657	* Init the ring-3 components and ring-3 per cpu data, finishing it off
658	* by a relocation round (intermediate context finalization will do this).
659	*/
660	rc = vmR3InitRing3(pVM, pUVM);
661	if (RT_SUCCESS(rc))
662	{
663	rc = PGMR3FinalizeMappings(pVM);
664	if (RT_SUCCESS(rc))
665	{
666
667	LogFlow(("Ring-3 init succeeded\n"));
668
669	/*
670	* Init the Ring-0 components.
671	*/
672	rc = vmR3InitRing0(pVM);
673	if (RT_SUCCESS(rc))
674	{
675	/* Relocate again, because some switcher fixups depends on R0 init results. */
676	VMR3Relocate(pVM, 0 /* offDelta */);
677
678	#ifdef VBOX_WITH_DEBUGGER
679	/*
680	* Init the tcp debugger console if we're building
681	* with debugger support.
682	*/
683	void *pvUser = NULL;
684	rc = DBGCTcpCreate(pUVM, &pvUser);
685	if ( RT_SUCCESS(rc)
686	\|\| rc == VERR_NET_ADDRESS_IN_USE)
687	{
688	pUVM->vm.s.pvDBGC = pvUser;
689	#endif
690	/*
691	* Init the Raw-Mode Context components.
692	*/
693	#ifdef VBOX_WITH_RAW_MODE
694	rc = vmR3InitRC(pVM);
695	if (RT_SUCCESS(rc))
696	#endif
697	{
698	/*
699	* Now we can safely set the VM halt method to default.
700	*/
701	rc = vmR3SetHaltMethodU(pUVM, VMHALTMETHOD_DEFAULT);
702	if (RT_SUCCESS(rc))
703	{
704	/*
705	* Set the state and we're done.
706	*/
707	vmR3SetState(pVM, VMSTATE_CREATED, VMSTATE_CREATING);
708	return VINF_SUCCESS;
709	}
710	}
711	#ifdef VBOX_WITH_DEBUGGER
712	DBGCTcpTerminate(pUVM, pUVM->vm.s.pvDBGC);
713	pUVM->vm.s.pvDBGC = NULL;
714	}
715	#endif
716	//..
717	}
718	}
719	vmR3Destroy(pVM);
720	}
721	}
722	//..
723
724	/* Clean CFGM. */
725	int rc2 = CFGMR3Term(pVM);
726	AssertRC(rc2);
727	}
728
729	/*
730	* Do automatic cleanups while the VM structure is still alive and all
731	* references to it are still working.
732	*/
733	PDMR3CritSectBothTerm(pVM);
734
735	/*
736	* Drop all references to VM and the VMCPU structures, then
737	* tell GVMM to destroy the VM.
738	*/
739	pUVM->pVM = NULL;
740	for (VMCPUID i = 0; i < pUVM->cCpus; i++)
741	{
742	pUVM->aCpus[i].pVM = NULL;
743	pUVM->aCpus[i].pVCpu = NULL;
744	}
745	Assert(pUVM->vm.s.enmHaltMethod == VMHALTMETHOD_BOOTSTRAP);
746
747	if (pUVM->cCpus > 1)
748	{
749	/* Poke the other EMTs since they may have stale pVM and pVCpu references
750	on the stack (see VMR3WaitU for instance) if they've been awakened after
751	VM creation. */
752	for (VMCPUID i = 1; i < pUVM->cCpus; i++)
753	VMR3NotifyCpuFFU(&pUVM->aCpus[i], 0);
754	RTThreadSleep(RT_MIN(100 + 25 (pUVM->cCpus - 1), 500)); / very sophisticated */
755	}
756
757	int rc2 = SUPR3CallVMMR0Ex(CreateVMReq.pVMR0, 0 /idCpu/, VMMR0_DO_GVMM_DESTROY_VM, 0, NULL);
758	AssertRC(rc2);
759	}
760	else
761	vmR3SetErrorU(pUVM, rc, RT_SRC_POS, N_("VM creation failed (GVMM)"));
762
763	LogFlow(("vmR3CreateU: returns %Rrc\n", rc));
764	return rc;
765	}
766
767
768	/**
769	* Reads the base configuation from CFGM.
770	*
771	* @returns VBox status code.
772	* @param pVM The cross context VM structure.
773	* @param pUVM The user mode VM structure.
774	* @param cCpus The CPU count given to VMR3Create.
775	*/
776	static int vmR3ReadBaseConfig(PVM pVM, PUVM pUVM, uint32_t cCpus)
777	{
778	int rc;
779	PCFGMNODE pRoot = CFGMR3GetRoot(pVM);
780
781	/*
782	* If executing in fake suplib mode disable RR3 and RR0 in the config.
783	*/
784	const char *psz = RTEnvGet("VBOX_SUPLIB_FAKE");
785	if (psz && !strcmp(psz, "fake"))
786	{
787	CFGMR3RemoveValue(pRoot, "RawR3Enabled");
788	CFGMR3InsertInteger(pRoot, "RawR3Enabled", 0);
789	CFGMR3RemoveValue(pRoot, "RawR0Enabled");
790	CFGMR3InsertInteger(pRoot, "RawR0Enabled", 0);
791	}
792
793	/*
794	* Base EM and HM config properties.
795	*/
796	/** @todo We don't need to read any of this here. The relevant modules reads
797	* them again and will be in a better position to set them correctly. */
798	Assert(pVM->fRecompileUser == false); /* ASSUMES all zeros at this point */
799	bool fEnabled;
800	rc = CFGMR3QueryBoolDef(pRoot, "RawR3Enabled", &fEnabled, false); AssertRCReturn(rc, rc);
801	pVM->fRecompileUser = !fEnabled;
802	rc = CFGMR3QueryBoolDef(pRoot, "RawR0Enabled", &fEnabled, false); AssertRCReturn(rc, rc);
803	pVM->fRecompileSupervisor = !fEnabled;
804	#ifdef VBOX_WITH_RAW_MODE
805	# ifdef VBOX_WITH_RAW_RING1
806	rc = CFGMR3QueryBoolDef(pRoot, "RawR1Enabled", &pVM->fRawRing1Enabled, false);
807	# endif
808	rc = CFGMR3QueryBoolDef(pRoot, "PATMEnabled", &pVM->fPATMEnabled, true); AssertRCReturn(rc, rc);
809	rc = CFGMR3QueryBoolDef(pRoot, "CSAMEnabled", &pVM->fCSAMEnabled, true); AssertRCReturn(rc, rc);
810	rc = CFGMR3QueryBoolDef(pRoot, "HMEnabled", &pVM->fHMEnabled, true); AssertRCReturn(rc, rc);
811	#else
812	pVM->fHMEnabled = true;
813	#endif
814	LogRel(("VM: fHMEnabled=%RTbool (configured) fRecompileUser=%RTbool fRecompileSupervisor=%RTbool\n"
815	"VM: fRawRing1Enabled=%RTbool CSAM=%RTbool PATM=%RTbool\n",
816	pVM->fHMEnabled, pVM->fRecompileUser, pVM->fRecompileSupervisor,
817	pVM->fRawRing1Enabled, pVM->fCSAMEnabled, pVM->fPATMEnabled));
818
819	/*
820	* Make sure the CPU count in the config data matches.
821	*/
822	uint32_t cCPUsCfg;
823	rc = CFGMR3QueryU32Def(pRoot, "NumCPUs", &cCPUsCfg, 1);
824	AssertLogRelMsgRCReturn(rc, ("Configuration error: Querying \"NumCPUs\" as integer failed, rc=%Rrc\n", rc), rc);
825	AssertLogRelMsgReturn(cCPUsCfg == cCpus,
826	("Configuration error: \"NumCPUs\"=%RU32 and VMR3Create::cCpus=%RU32 does not match!\n",
827	cCPUsCfg, cCpus),
828	VERR_INVALID_PARAMETER);
829
830	/*
831	* Get the CPU execution cap.
832	*/
833	rc = CFGMR3QueryU32Def(pRoot, "CpuExecutionCap", &pVM->uCpuExecutionCap, 100);
834	AssertLogRelMsgRCReturn(rc, ("Configuration error: Querying \"CpuExecutionCap\" as integer failed, rc=%Rrc\n", rc), rc);
835
836	/*
837	* Get the VM name and UUID.
838	*/
839	rc = CFGMR3QueryStringAllocDef(pRoot, "Name", &pUVM->vm.s.pszName, "<unknown>");
840	AssertLogRelMsgRCReturn(rc, ("Configuration error: Querying \"Name\" failed, rc=%Rrc\n", rc), rc);
841
842	rc = CFGMR3QueryBytes(pRoot, "UUID", &pUVM->vm.s.Uuid, sizeof(pUVM->vm.s.Uuid));
843	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
844	rc = VINF_SUCCESS;
845	AssertLogRelMsgRCReturn(rc, ("Configuration error: Querying \"UUID\" failed, rc=%Rrc\n", rc), rc);
846
847	rc = CFGMR3QueryBoolDef(pRoot, "PowerOffInsteadOfReset", &pVM->vm.s.fPowerOffInsteadOfReset, false);
848	AssertLogRelMsgRCReturn(rc, ("Configuration error: Querying \"PowerOffInsteadOfReset\" failed, rc=%Rrc\n", rc), rc);
849
850	return VINF_SUCCESS;
851	}
852
853
854	/**
855	* Register the calling EMT with GVM.
856	*
857	* @returns VBox status code.
858	* @param pVM The cross context VM structure.
859	* @param idCpu The Virtual CPU ID.
860	*/
861	static DECLCALLBACK(int) vmR3RegisterEMT(PVM pVM, VMCPUID idCpu)
862	{
863	Assert(VMMGetCpuId(pVM) == idCpu);
864	int rc = SUPR3CallVMMR0Ex(pVM->pVMR0, idCpu, VMMR0_DO_GVMM_REGISTER_VMCPU, 0, NULL);
865	if (RT_FAILURE(rc))
866	LogRel(("idCpu=%u rc=%Rrc\n", idCpu, rc));
867	return rc;
868	}
869
870
871	/**
872	* Initializes all R3 components of the VM
873	*/
874	static int vmR3InitRing3(PVM pVM, PUVM pUVM)
875	{
876	int rc;
877
878	/*
879	* Register the other EMTs with GVM.
880	*/
881	for (VMCPUID idCpu = 1; idCpu < pVM->cCpus; idCpu++)
882	{
883	rc = VMR3ReqCallWait(pVM, idCpu, (PFNRT)vmR3RegisterEMT, 2, pVM, idCpu);
884	if (RT_FAILURE(rc))
885	return rc;
886	}
887
888	/*
889	* Register statistics.
890	*/
891	STAM_REG(pVM, &pVM->StatTotalInGC, STAMTYPE_PROFILE_ADV, "/PROF/VM/InGC", STAMUNIT_TICKS_PER_CALL, "Profiling the total time spent in GC.");
892	STAM_REG(pVM, &pVM->StatSwitcherToGC, STAMTYPE_PROFILE_ADV, "/PROF/VM/SwitchToGC", STAMUNIT_TICKS_PER_CALL, "Profiling switching to GC.");
893	STAM_REG(pVM, &pVM->StatSwitcherToHC, STAMTYPE_PROFILE_ADV, "/PROF/VM/SwitchToHC", STAMUNIT_TICKS_PER_CALL, "Profiling switching to HC.");
894	STAM_REG(pVM, &pVM->StatSwitcherSaveRegs, STAMTYPE_PROFILE_ADV, "/VM/Switcher/ToGC/SaveRegs", STAMUNIT_TICKS_PER_CALL,"Profiling switching to GC.");
895	STAM_REG(pVM, &pVM->StatSwitcherSysEnter, STAMTYPE_PROFILE_ADV, "/VM/Switcher/ToGC/SysEnter", STAMUNIT_TICKS_PER_CALL,"Profiling switching to GC.");
896	STAM_REG(pVM, &pVM->StatSwitcherDebug, STAMTYPE_PROFILE_ADV, "/VM/Switcher/ToGC/Debug", STAMUNIT_TICKS_PER_CALL,"Profiling switching to GC.");
897	STAM_REG(pVM, &pVM->StatSwitcherCR0, STAMTYPE_PROFILE_ADV, "/VM/Switcher/ToGC/CR0", STAMUNIT_TICKS_PER_CALL, "Profiling switching to GC.");
898	STAM_REG(pVM, &pVM->StatSwitcherCR4, STAMTYPE_PROFILE_ADV, "/VM/Switcher/ToGC/CR4", STAMUNIT_TICKS_PER_CALL, "Profiling switching to GC.");
899	STAM_REG(pVM, &pVM->StatSwitcherLgdt, STAMTYPE_PROFILE_ADV, "/VM/Switcher/ToGC/Lgdt", STAMUNIT_TICKS_PER_CALL, "Profiling switching to GC.");
900	STAM_REG(pVM, &pVM->StatSwitcherLidt, STAMTYPE_PROFILE_ADV, "/VM/Switcher/ToGC/Lidt", STAMUNIT_TICKS_PER_CALL, "Profiling switching to GC.");
901	STAM_REG(pVM, &pVM->StatSwitcherLldt, STAMTYPE_PROFILE_ADV, "/VM/Switcher/ToGC/Lldt", STAMUNIT_TICKS_PER_CALL, "Profiling switching to GC.");
902	STAM_REG(pVM, &pVM->StatSwitcherTSS, STAMTYPE_PROFILE_ADV, "/VM/Switcher/ToGC/TSS", STAMUNIT_TICKS_PER_CALL, "Profiling switching to GC.");
903	STAM_REG(pVM, &pVM->StatSwitcherJmpCR3, STAMTYPE_PROFILE_ADV, "/VM/Switcher/ToGC/JmpCR3", STAMUNIT_TICKS_PER_CALL,"Profiling switching to GC.");
904	STAM_REG(pVM, &pVM->StatSwitcherRstrRegs, STAMTYPE_PROFILE_ADV, "/VM/Switcher/ToGC/RstrRegs", STAMUNIT_TICKS_PER_CALL,"Profiling switching to GC.");
905
906	for (VMCPUID idCpu = 0; idCpu < pVM->cCpus; idCpu++)
907	{
908	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);
909	AssertRC(rc);
910	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);
911	AssertRC(rc);
912	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);
913	AssertRC(rc);
914	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);
915	AssertRC(rc);
916	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);
917	AssertRC(rc);
918	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);
919	AssertRC(rc);
920	}
921
922	STAM_REG(pVM, &pUVM->vm.s.StatReqAllocNew, STAMTYPE_COUNTER, "/VM/Req/AllocNew", STAMUNIT_OCCURENCES, "Number of VMR3ReqAlloc returning a new packet.");
923	STAM_REG(pVM, &pUVM->vm.s.StatReqAllocRaces, STAMTYPE_COUNTER, "/VM/Req/AllocRaces", STAMUNIT_OCCURENCES, "Number of VMR3ReqAlloc causing races.");
924	STAM_REG(pVM, &pUVM->vm.s.StatReqAllocRecycled, STAMTYPE_COUNTER, "/VM/Req/AllocRecycled", STAMUNIT_OCCURENCES, "Number of VMR3ReqAlloc returning a recycled packet.");
925	STAM_REG(pVM, &pUVM->vm.s.StatReqFree, STAMTYPE_COUNTER, "/VM/Req/Free", STAMUNIT_OCCURENCES, "Number of VMR3ReqFree calls.");
926	STAM_REG(pVM, &pUVM->vm.s.StatReqFreeOverflow, STAMTYPE_COUNTER, "/VM/Req/FreeOverflow", STAMUNIT_OCCURENCES, "Number of times the request was actually freed.");
927	STAM_REG(pVM, &pUVM->vm.s.StatReqProcessed, STAMTYPE_COUNTER, "/VM/Req/Processed", STAMUNIT_OCCURENCES, "Number of processed requests (any queue).");
928	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.");
929	STAM_REG(pVM, &pUVM->vm.s.StatReqPushBackRaces, STAMTYPE_COUNTER, "/VM/Req/PushBackRaces", STAMUNIT_OCCURENCES, "Number of push back races.");
930
931	/*
932	* Init all R3 components, the order here might be important.
933	* NEM and HM shall be initialized first!
934	*/
935	Assert(pVM->bMainExecutionEngine == VM_EXEC_ENGINE_NOT_SET);
936	rc = NEMR3InitConfig(pVM);
937	if (RT_SUCCESS(rc))
938	rc = HMR3Init(pVM);
939	if (RT_SUCCESS(rc))
940	{
941	ASMCompilerBarrier(); /* HMR3Init will have modified bMainExecutionEngine */
942	#ifdef VBOX_WITH_RAW_MODE
943	Assert( pVM->bMainExecutionEngine == VM_EXEC_ENGINE_HW_VIRT
944	\|\| pVM->bMainExecutionEngine == VM_EXEC_ENGINE_RAW_MODE
945	\|\| pVM->bMainExecutionEngine == VM_EXEC_ENGINE_NATIVE_API);
946	#else
947	Assert( pVM->bMainExecutionEngine == VM_EXEC_ENGINE_HW_VIRT
948	\|\| pVM->bMainExecutionEngine == VM_EXEC_ENGINE_NATIVE_API);
949	#endif
950	rc = MMR3Init(pVM);
951	if (RT_SUCCESS(rc))
952	{
953	rc = CPUMR3Init(pVM);
954	if (RT_SUCCESS(rc))
955	{
956	rc = NEMR3InitAfterCPUM(pVM);
957	if (RT_SUCCESS(rc))
958	rc = PGMR3Init(pVM);
959	if (RT_SUCCESS(rc))
960	{
961	#ifdef VBOX_WITH_REM
962	rc = REMR3Init(pVM);
963	#endif
964	if (RT_SUCCESS(rc))
965	{
966	rc = MMR3InitPaging(pVM);
967	if (RT_SUCCESS(rc))
968	rc = TMR3Init(pVM);
969	if (RT_SUCCESS(rc))
970	{
971	rc = FTMR3Init(pVM);
972	if (RT_SUCCESS(rc))
973	{
974	rc = VMMR3Init(pVM);
975	if (RT_SUCCESS(rc))
976	{
977	rc = SELMR3Init(pVM);
978	if (RT_SUCCESS(rc))
979	{
980	rc = TRPMR3Init(pVM);
981	if (RT_SUCCESS(rc))
982	{
983	#ifdef VBOX_WITH_RAW_MODE
984	rc = CSAMR3Init(pVM);
985	if (RT_SUCCESS(rc))
986	{
987	rc = PATMR3Init(pVM);
988	if (RT_SUCCESS(rc))
989	{
990	#endif
991	rc = IOMR3Init(pVM);
992	if (RT_SUCCESS(rc))
993	{
994	rc = EMR3Init(pVM);
995	if (RT_SUCCESS(rc))
996	{
997	rc = IEMR3Init(pVM);
998	if (RT_SUCCESS(rc))
999	{
1000	rc = DBGFR3Init(pVM);
1001	if (RT_SUCCESS(rc))
1002	{
1003	/* GIM must be init'd before PDM, gimdevR3Construct()
1004	requires GIM provider to be setup. */
1005	rc = GIMR3Init(pVM);
1006	if (RT_SUCCESS(rc))
1007	{
1008	rc = PDMR3Init(pVM);
1009	if (RT_SUCCESS(rc))
1010	{
1011	rc = PGMR3InitDynMap(pVM);
1012	if (RT_SUCCESS(rc))
1013	rc = MMR3HyperInitFinalize(pVM);
1014	#ifdef VBOX_WITH_RAW_MODE
1015	if (RT_SUCCESS(rc))
1016	rc = PATMR3InitFinalize(pVM);
1017	#endif
1018	if (RT_SUCCESS(rc))
1019	rc = PGMR3InitFinalize(pVM);
1020	if (RT_SUCCESS(rc))
1021	rc = SELMR3InitFinalize(pVM);
1022	if (RT_SUCCESS(rc))
1023	rc = TMR3InitFinalize(pVM);
1024	#ifdef VBOX_WITH_REM
1025	if (RT_SUCCESS(rc))
1026	rc = REMR3InitFinalize(pVM);
1027	#endif
1028	if (RT_SUCCESS(rc))
1029	{
1030	PGMR3MemSetup(pVM, false /fAtReset/);
1031	PDMR3MemSetup(pVM, false /fAtReset/);
1032	}
1033	if (RT_SUCCESS(rc))
1034	rc = vmR3InitDoCompleted(pVM, VMINITCOMPLETED_RING3);
1035	if (RT_SUCCESS(rc))
1036	{
1037	LogFlow(("vmR3InitRing3: returns %Rrc\n", VINF_SUCCESS));
1038	return VINF_SUCCESS;
1039	}
1040
1041	int rc2 = PDMR3Term(pVM);
1042	AssertRC(rc2);
1043	}
1044	int rc2 = GIMR3Term(pVM);
1045	AssertRC(rc2);
1046	}
1047	int rc2 = DBGFR3Term(pVM);
1048	AssertRC(rc2);
1049	}
1050	int rc2 = IEMR3Term(pVM);
1051	AssertRC(rc2);
1052	}
1053	int rc2 = EMR3Term(pVM);
1054	AssertRC(rc2);
1055	}
1056	int rc2 = IOMR3Term(pVM);
1057	AssertRC(rc2);
1058	}
1059	#ifdef VBOX_WITH_RAW_MODE
1060	int rc2 = PATMR3Term(pVM);
1061	AssertRC(rc2);
1062	}
1063	int rc2 = CSAMR3Term(pVM);
1064	AssertRC(rc2);
1065	}
1066	#endif
1067	int rc2 = TRPMR3Term(pVM);
1068	AssertRC(rc2);
1069	}
1070	int rc2 = SELMR3Term(pVM);
1071	AssertRC(rc2);
1072	}
1073	int rc2 = VMMR3Term(pVM);
1074	AssertRC(rc2);
1075	}
1076	int rc2 = FTMR3Term(pVM);
1077	AssertRC(rc2);
1078	}
1079	int rc2 = TMR3Term(pVM);
1080	AssertRC(rc2);
1081	}
1082	#ifdef VBOX_WITH_REM
1083	int rc2 = REMR3Term(pVM);
1084	AssertRC(rc2);
1085	#endif
1086	}
1087	int rc2 = PGMR3Term(pVM);
1088	AssertRC(rc2);
1089	}
1090	//int rc2 = CPUMR3Term(pVM);
1091	//AssertRC(rc2);
1092	}
1093	/* MMR3Term is not called here because it'll kill the heap. */
1094	}
1095	int rc2 = HMR3Term(pVM);
1096	AssertRC(rc2);
1097	}
1098	NEMR3Term(pVM);
1099
1100	LogFlow(("vmR3InitRing3: returns %Rrc\n", rc));
1101	return rc;
1102	}
1103
1104
1105	/**
1106	* Initializes all R0 components of the VM
1107	*/
1108	static int vmR3InitRing0(PVM pVM)
1109	{
1110	LogFlow(("vmR3InitRing0:\n"));
1111
1112	/*
1113	* Check for FAKE suplib mode.
1114	*/
1115	int rc = VINF_SUCCESS;
1116	const char *psz = RTEnvGet("VBOX_SUPLIB_FAKE");
1117	if (!psz \|\| strcmp(psz, "fake"))
1118	{
1119	/*
1120	* Call the VMMR0 component and let it do the init.
1121	*/
1122	rc = VMMR3InitR0(pVM);
1123	}
1124	else
1125	Log(("vmR3InitRing0: skipping because of VBOX_SUPLIB_FAKE=fake\n"));
1126
1127	/*
1128	* Do notifications and return.
1129	*/
1130	if (RT_SUCCESS(rc))
1131	rc = vmR3InitDoCompleted(pVM, VMINITCOMPLETED_RING0);
1132	if (RT_SUCCESS(rc))
1133	rc = vmR3InitDoCompleted(pVM, VMINITCOMPLETED_HM);
1134
1135	LogFlow(("vmR3InitRing0: returns %Rrc\n", rc));
1136	return rc;
1137	}
1138
1139
1140	#ifdef VBOX_WITH_RAW_MODE
1141	/**
1142	* Initializes all RC components of the VM
1143	*/
1144	static int vmR3InitRC(PVM pVM)
1145	{
1146	LogFlow(("vmR3InitRC:\n"));
1147
1148	/*
1149	* Check for FAKE suplib mode.
1150	*/
1151	int rc = VINF_SUCCESS;
1152	const char *psz = RTEnvGet("VBOX_SUPLIB_FAKE");
1153	if (!psz \|\| strcmp(psz, "fake"))
1154	{
1155	/*
1156	* Call the VMMR0 component and let it do the init.
1157	*/
1158	rc = VMMR3InitRC(pVM);
1159	}
1160	else
1161	Log(("vmR3InitRC: skipping because of VBOX_SUPLIB_FAKE=fake\n"));
1162
1163	/*
1164	* Do notifications and return.
1165	*/
1166	if (RT_SUCCESS(rc))
1167	rc = vmR3InitDoCompleted(pVM, VMINITCOMPLETED_RC);
1168	LogFlow(("vmR3InitRC: returns %Rrc\n", rc));
1169	return rc;
1170	}
1171	#endif /* VBOX_WITH_RAW_MODE */
1172
1173
1174	/**
1175	* Do init completed notifications.
1176	*
1177	* @returns VBox status code.
1178	* @param pVM The cross context VM structure.
1179	* @param enmWhat What's completed.
1180	*/
1181	static int vmR3InitDoCompleted(PVM pVM, VMINITCOMPLETED enmWhat)
1182	{
1183	int rc = VMMR3InitCompleted(pVM, enmWhat);
1184	if (RT_SUCCESS(rc))
1185	rc = HMR3InitCompleted(pVM, enmWhat);
1186	if (RT_SUCCESS(rc))
1187	rc = NEMR3InitCompleted(pVM, enmWhat);
1188	if (RT_SUCCESS(rc))
1189	rc = PGMR3InitCompleted(pVM, enmWhat);
1190	if (RT_SUCCESS(rc))
1191	rc = CPUMR3InitCompleted(pVM, enmWhat);
1192	if (RT_SUCCESS(rc))
1193	rc = EMR3InitCompleted(pVM, enmWhat);
1194	if (enmWhat == VMINITCOMPLETED_RING3)
1195	{
1196	#ifndef VBOX_WITH_RAW_MODE
1197	if (RT_SUCCESS(rc))
1198	rc = SSMR3RegisterStub(pVM, "CSAM", 0);
1199	if (RT_SUCCESS(rc))
1200	rc = SSMR3RegisterStub(pVM, "PATM", 0);
1201	#endif
1202	#ifndef VBOX_WITH_REM
1203	if (RT_SUCCESS(rc))
1204	rc = SSMR3RegisterStub(pVM, "rem", 1);
1205	#endif
1206	}
1207	if (RT_SUCCESS(rc))
1208	rc = PDMR3InitCompleted(pVM, enmWhat);
1209	return rc;
1210	}
1211
1212
1213	/**
1214	* Calls the relocation functions for all VMM components so they can update
1215	* any GC pointers. When this function is called all the basic VM members
1216	* have been updated and the actual memory relocation have been done
1217	* by the PGM/MM.
1218	*
1219	* This is used both on init and on runtime relocations.
1220	*
1221	* @param pVM The cross context VM structure.
1222	* @param offDelta Relocation delta relative to old location.
1223	*/
1224	VMMR3_INT_DECL(void) VMR3Relocate(PVM pVM, RTGCINTPTR offDelta)
1225	{
1226	LogFlow(("VMR3Relocate: offDelta=%RGv\n", offDelta));
1227
1228	/*
1229	* The order here is very important!
1230	*/
1231	PGMR3Relocate(pVM, offDelta);
1232	PDMR3LdrRelocateU(pVM->pUVM, offDelta);
1233	PGMR3Relocate(pVM, 0); /* Repeat after PDM relocation. */
1234	CPUMR3Relocate(pVM);
1235	HMR3Relocate(pVM);
1236	SELMR3Relocate(pVM);
1237	VMMR3Relocate(pVM, offDelta);
1238	SELMR3Relocate(pVM); /* !hack! fix stack! */
1239	TRPMR3Relocate(pVM, offDelta);
1240	#ifdef VBOX_WITH_RAW_MODE
1241	PATMR3Relocate(pVM, (RTRCINTPTR)offDelta);
1242	CSAMR3Relocate(pVM, offDelta);
1243	#endif
1244	IOMR3Relocate(pVM, offDelta);
1245	EMR3Relocate(pVM);
1246	TMR3Relocate(pVM, offDelta);
1247	IEMR3Relocate(pVM);
1248	DBGFR3Relocate(pVM, offDelta);
1249	PDMR3Relocate(pVM, offDelta);
1250	GIMR3Relocate(pVM, offDelta);
1251	}
1252
1253
1254	/**
1255	* EMT rendezvous worker for VMR3PowerOn.
1256	*
1257	* @returns VERR_VM_INVALID_VM_STATE or VINF_SUCCESS. (This is a strict return
1258	* code, see FNVMMEMTRENDEZVOUS.)
1259	*
1260	* @param pVM The cross context VM structure.
1261	* @param pVCpu The cross context virtual CPU structure of the calling EMT.
1262	* @param pvUser Ignored.
1263	*/
1264	static DECLCALLBACK(VBOXSTRICTRC) vmR3PowerOn(PVM pVM, PVMCPU pVCpu, void *pvUser)
1265	{
1266	LogFlow(("vmR3PowerOn: pVM=%p pVCpu=%p/#%u\n", pVM, pVCpu, pVCpu->idCpu));
1267	Assert(!pvUser); NOREF(pvUser);
1268
1269	/*
1270	* The first thread thru here tries to change the state. We shouldn't be
1271	* called again if this fails.
1272	*/
1273	if (pVCpu->idCpu == pVM->cCpus - 1)
1274	{
1275	int rc = vmR3TrySetState(pVM, "VMR3PowerOn", 1, VMSTATE_POWERING_ON, VMSTATE_CREATED);
1276	if (RT_FAILURE(rc))
1277	return rc;
1278	}
1279
1280	VMSTATE enmVMState = VMR3GetState(pVM);
1281	AssertMsgReturn(enmVMState == VMSTATE_POWERING_ON,
1282	("%s\n", VMR3GetStateName(enmVMState)),
1283	VERR_VM_UNEXPECTED_UNSTABLE_STATE);
1284
1285	/*
1286	* All EMTs changes their state to started.
1287	*/
1288	VMCPU_SET_STATE(pVCpu, VMCPUSTATE_STARTED);
1289
1290	/*
1291	* EMT(0) is last thru here and it will make the notification calls
1292	* and advance the state.
1293	*/
1294	if (pVCpu->idCpu == 0)
1295	{
1296	PDMR3PowerOn(pVM);
1297	vmR3SetState(pVM, VMSTATE_RUNNING, VMSTATE_POWERING_ON);
1298	}
1299
1300	return VINF_SUCCESS;
1301	}
1302
1303
1304	/**
1305	* Powers on the virtual machine.
1306	*
1307	* @returns VBox status code.
1308	*
1309	* @param pUVM The VM to power on.
1310	*
1311	* @thread Any thread.
1312	* @vmstate Created
1313	* @vmstateto PoweringOn+Running
1314	*/
1315	VMMR3DECL(int) VMR3PowerOn(PUVM pUVM)
1316	{
1317	LogFlow(("VMR3PowerOn: pUVM=%p\n", pUVM));
1318	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
1319	PVM pVM = pUVM->pVM;
1320	VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
1321
1322	/*
1323	* Gather all the EMTs to reduce the init TSC drift and keep
1324	* the state changing APIs a bit uniform.
1325	*/
1326	int rc = VMMR3EmtRendezvous(pVM, VMMEMTRENDEZVOUS_FLAGS_TYPE_DESCENDING \| VMMEMTRENDEZVOUS_FLAGS_STOP_ON_ERROR,
1327	vmR3PowerOn, NULL);
1328	LogFlow(("VMR3PowerOn: returns %Rrc\n", rc));
1329	return rc;
1330	}
1331
1332
1333	/**
1334	* Does the suspend notifications.
1335	*
1336	* @param pVM The cross context VM structure.
1337	* @thread EMT(0)
1338	*/
1339	static void vmR3SuspendDoWork(PVM pVM)
1340	{
1341	PDMR3Suspend(pVM);
1342	}
1343
1344
1345	/**
1346	* EMT rendezvous worker for VMR3Suspend.
1347	*
1348	* @returns VERR_VM_INVALID_VM_STATE or VINF_EM_SUSPEND. (This is a strict
1349	* return code, see FNVMMEMTRENDEZVOUS.)
1350	*
1351	* @param pVM The cross context VM structure.
1352	* @param pVCpu The cross context virtual CPU structure of the calling EMT.
1353	* @param pvUser Ignored.
1354	*/
1355	static DECLCALLBACK(VBOXSTRICTRC) vmR3Suspend(PVM pVM, PVMCPU pVCpu, void *pvUser)
1356	{
1357	VMSUSPENDREASON enmReason = (VMSUSPENDREASON)(uintptr_t)pvUser;
1358	LogFlow(("vmR3Suspend: pVM=%p pVCpu=%p/#%u enmReason=%d\n", pVM, pVCpu, pVCpu->idCpu, enmReason));
1359
1360	/*
1361	* The first EMT switches the state to suspending. If this fails because
1362	* something was racing us in one way or the other, there will be no more
1363	* calls and thus the state assertion below is not going to annoy anyone.
1364	*/
1365	if (pVCpu->idCpu == pVM->cCpus - 1)
1366	{
1367	int rc = vmR3TrySetState(pVM, "VMR3Suspend", 2,
1368	VMSTATE_SUSPENDING, VMSTATE_RUNNING,
1369	VMSTATE_SUSPENDING_EXT_LS, VMSTATE_RUNNING_LS);
1370	if (RT_FAILURE(rc))
1371	return rc;
1372	pVM->pUVM->vm.s.enmSuspendReason = enmReason;
1373	}
1374
1375	VMSTATE enmVMState = VMR3GetState(pVM);
1376	AssertMsgReturn( enmVMState == VMSTATE_SUSPENDING
1377	\|\| enmVMState == VMSTATE_SUSPENDING_EXT_LS,
1378	("%s\n", VMR3GetStateName(enmVMState)),
1379	VERR_VM_UNEXPECTED_UNSTABLE_STATE);
1380
1381	/*
1382	* EMT(0) does the actually suspending after all the other CPUs have
1383	* been thru here.
1384	*/
1385	if (pVCpu->idCpu == 0)
1386	{
1387	vmR3SuspendDoWork(pVM);
1388
1389	int rc = vmR3TrySetState(pVM, "VMR3Suspend", 2,
1390	VMSTATE_SUSPENDED, VMSTATE_SUSPENDING,
1391	VMSTATE_SUSPENDED_EXT_LS, VMSTATE_SUSPENDING_EXT_LS);
1392	if (RT_FAILURE(rc))
1393	return VERR_VM_UNEXPECTED_UNSTABLE_STATE;
1394	}
1395
1396	return VINF_EM_SUSPEND;
1397	}
1398
1399
1400	/**
1401	* Suspends a running VM.
1402	*
1403	* @returns VBox status code. When called on EMT, this will be a strict status
1404	* code that has to be propagated up the call stack.
1405	*
1406	* @param pUVM The VM to suspend.
1407	* @param enmReason The reason for suspending.
1408	*
1409	* @thread Any thread.
1410	* @vmstate Running or RunningLS
1411	* @vmstateto Suspending + Suspended or SuspendingExtLS + SuspendedExtLS
1412	*/
1413	VMMR3DECL(int) VMR3Suspend(PUVM pUVM, VMSUSPENDREASON enmReason)
1414	{
1415	LogFlow(("VMR3Suspend: pUVM=%p\n", pUVM));
1416	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
1417	AssertReturn(enmReason > VMSUSPENDREASON_INVALID && enmReason < VMSUSPENDREASON_END, VERR_INVALID_PARAMETER);
1418
1419	/*
1420	* Gather all the EMTs to make sure there are no races before
1421	* changing the VM state.
1422	*/
1423	int rc = VMMR3EmtRendezvous(pUVM->pVM, VMMEMTRENDEZVOUS_FLAGS_TYPE_DESCENDING \| VMMEMTRENDEZVOUS_FLAGS_STOP_ON_ERROR,
1424	vmR3Suspend, (void *)(uintptr_t)enmReason);
1425	LogFlow(("VMR3Suspend: returns %Rrc\n", rc));
1426	return rc;
1427	}
1428
1429
1430	/**
1431	* Retrieves the reason for the most recent suspend.
1432	*
1433	* @returns Suspend reason. VMSUSPENDREASON_INVALID if no suspend has been done
1434	* or the handle is invalid.
1435	* @param pUVM The user mode VM handle.
1436	*/
1437	VMMR3DECL(VMSUSPENDREASON) VMR3GetSuspendReason(PUVM pUVM)
1438	{
1439	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VMSUSPENDREASON_INVALID);
1440	return pUVM->vm.s.enmSuspendReason;
1441	}
1442
1443
1444	/**
1445	* EMT rendezvous worker for VMR3Resume.
1446	*
1447	* @returns VERR_VM_INVALID_VM_STATE or VINF_EM_RESUME. (This is a strict
1448	* return code, see FNVMMEMTRENDEZVOUS.)
1449	*
1450	* @param pVM The cross context VM structure.
1451	* @param pVCpu The cross context virtual CPU structure of the calling EMT.
1452	* @param pvUser Reason.
1453	*/
1454	static DECLCALLBACK(VBOXSTRICTRC) vmR3Resume(PVM pVM, PVMCPU pVCpu, void *pvUser)
1455	{
1456	VMRESUMEREASON enmReason = (VMRESUMEREASON)(uintptr_t)pvUser;
1457	LogFlow(("vmR3Resume: pVM=%p pVCpu=%p/#%u enmReason=%d\n", pVM, pVCpu, pVCpu->idCpu, enmReason));
1458
1459	/*
1460	* The first thread thru here tries to change the state. We shouldn't be
1461	* called again if this fails.
1462	*/
1463	if (pVCpu->idCpu == pVM->cCpus - 1)
1464	{
1465	int rc = vmR3TrySetState(pVM, "VMR3Resume", 1, VMSTATE_RESUMING, VMSTATE_SUSPENDED);
1466	if (RT_FAILURE(rc))
1467	return rc;
1468	pVM->pUVM->vm.s.enmResumeReason = enmReason;
1469	}
1470
1471	VMSTATE enmVMState = VMR3GetState(pVM);
1472	AssertMsgReturn(enmVMState == VMSTATE_RESUMING,
1473	("%s\n", VMR3GetStateName(enmVMState)),
1474	VERR_VM_UNEXPECTED_UNSTABLE_STATE);
1475
1476	#if 0
1477	/*
1478	* All EMTs changes their state to started.
1479	*/
1480	VMCPU_SET_STATE(pVCpu, VMCPUSTATE_STARTED);
1481	#endif
1482
1483	/*
1484	* EMT(0) is last thru here and it will make the notification calls
1485	* and advance the state.
1486	*/
1487	if (pVCpu->idCpu == 0)
1488	{
1489	PDMR3Resume(pVM);
1490	vmR3SetState(pVM, VMSTATE_RUNNING, VMSTATE_RESUMING);
1491	pVM->vm.s.fTeleportedAndNotFullyResumedYet = false;
1492	}
1493
1494	return VINF_EM_RESUME;
1495	}
1496
1497
1498	/**
1499	* Resume VM execution.
1500	*
1501	* @returns VBox status code. When called on EMT, this will be a strict status
1502	* code that has to be propagated up the call stack.
1503	*
1504	* @param pUVM The user mode VM handle.
1505	* @param enmReason The reason we're resuming.
1506	*
1507	* @thread Any thread.
1508	* @vmstate Suspended
1509	* @vmstateto Running
1510	*/
1511	VMMR3DECL(int) VMR3Resume(PUVM pUVM, VMRESUMEREASON enmReason)
1512	{
1513	LogFlow(("VMR3Resume: pUVM=%p\n", pUVM));
1514	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
1515	PVM pVM = pUVM->pVM;
1516	VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
1517	AssertReturn(enmReason > VMRESUMEREASON_INVALID && enmReason < VMRESUMEREASON_END, VERR_INVALID_PARAMETER);
1518
1519	/*
1520	* Gather all the EMTs to make sure there are no races before
1521	* changing the VM state.
1522	*/
1523	int rc = VMMR3EmtRendezvous(pVM, VMMEMTRENDEZVOUS_FLAGS_TYPE_DESCENDING \| VMMEMTRENDEZVOUS_FLAGS_STOP_ON_ERROR,
1524	vmR3Resume, (void *)(uintptr_t)enmReason);
1525	LogFlow(("VMR3Resume: returns %Rrc\n", rc));
1526	return rc;
1527	}
1528
1529
1530	/**
1531	* Retrieves the reason for the most recent resume.
1532	*
1533	* @returns Resume reason. VMRESUMEREASON_INVALID if no suspend has been
1534	* done or the handle is invalid.
1535	* @param pUVM The user mode VM handle.
1536	*/
1537	VMMR3DECL(VMRESUMEREASON) VMR3GetResumeReason(PUVM pUVM)
1538	{
1539	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VMRESUMEREASON_INVALID);
1540	return pUVM->vm.s.enmResumeReason;
1541	}
1542
1543
1544	/**
1545	* EMT rendezvous worker for VMR3Save and VMR3Teleport that suspends the VM
1546	* after the live step has been completed.
1547	*
1548	* @returns VERR_VM_INVALID_VM_STATE or VINF_EM_RESUME. (This is a strict
1549	* return code, see FNVMMEMTRENDEZVOUS.)
1550	*
1551	* @param pVM The cross context VM structure.
1552	* @param pVCpu The cross context virtual CPU structure of the calling EMT.
1553	* @param pvUser The pfSuspended argument of vmR3SaveTeleport.
1554	*/
1555	static DECLCALLBACK(VBOXSTRICTRC) vmR3LiveDoSuspend(PVM pVM, PVMCPU pVCpu, void *pvUser)
1556	{
1557	LogFlow(("vmR3LiveDoSuspend: pVM=%p pVCpu=%p/#%u\n", pVM, pVCpu, pVCpu->idCpu));
1558	bool pfSuspended = (bool )pvUser;
1559
1560	/*
1561	* The first thread thru here tries to change the state. We shouldn't be
1562	* called again if this fails.
1563	*/
1564	if (pVCpu->idCpu == pVM->cCpus - 1U)
1565	{
1566	PUVM pUVM = pVM->pUVM;
1567	int rc;
1568
1569	RTCritSectEnter(&pUVM->vm.s.AtStateCritSect);
1570	VMSTATE enmVMState = pVM->enmVMState;
1571	switch (enmVMState)
1572	{
1573	case VMSTATE_RUNNING_LS:
1574	vmR3SetStateLocked(pVM, pUVM, VMSTATE_SUSPENDING_LS, VMSTATE_RUNNING_LS, false /fSetRatherThanClearFF/);
1575	rc = VINF_SUCCESS;
1576	break;
1577
1578	case VMSTATE_SUSPENDED_EXT_LS:
1579	case VMSTATE_SUSPENDED_LS: /* (via reset) */
1580	rc = VINF_SUCCESS;
1581	break;
1582
1583	case VMSTATE_DEBUGGING_LS:
1584	rc = VERR_TRY_AGAIN;
1585	break;
1586
1587	case VMSTATE_OFF_LS:
1588	vmR3SetStateLocked(pVM, pUVM, VMSTATE_OFF, VMSTATE_OFF_LS, false /fSetRatherThanClearFF/);
1589	rc = VERR_SSM_LIVE_POWERED_OFF;
1590	break;
1591
1592	case VMSTATE_FATAL_ERROR_LS:
1593	vmR3SetStateLocked(pVM, pUVM, VMSTATE_FATAL_ERROR, VMSTATE_FATAL_ERROR_LS, false /fSetRatherThanClearFF/);
1594	rc = VERR_SSM_LIVE_FATAL_ERROR;
1595	break;
1596
1597	case VMSTATE_GURU_MEDITATION_LS:
1598	vmR3SetStateLocked(pVM, pUVM, VMSTATE_GURU_MEDITATION, VMSTATE_GURU_MEDITATION_LS, false /fSetRatherThanClearFF/);
1599	rc = VERR_SSM_LIVE_GURU_MEDITATION;
1600	break;
1601
1602	case VMSTATE_POWERING_OFF_LS:
1603	case VMSTATE_SUSPENDING_EXT_LS:
1604	case VMSTATE_RESETTING_LS:
1605	default:
1606	AssertMsgFailed(("%s\n", VMR3GetStateName(enmVMState)));
1607	rc = VERR_VM_UNEXPECTED_VM_STATE;
1608	break;
1609	}
1610	RTCritSectLeave(&pUVM->vm.s.AtStateCritSect);
1611	if (RT_FAILURE(rc))
1612	{
1613	LogFlow(("vmR3LiveDoSuspend: returns %Rrc (state was %s)\n", rc, VMR3GetStateName(enmVMState)));
1614	return rc;
1615	}
1616	}
1617
1618	VMSTATE enmVMState = VMR3GetState(pVM);
1619	AssertMsgReturn(enmVMState == VMSTATE_SUSPENDING_LS,
1620	("%s\n", VMR3GetStateName(enmVMState)),
1621	VERR_VM_UNEXPECTED_UNSTABLE_STATE);
1622
1623	/*
1624	* Only EMT(0) have work to do since it's last thru here.
1625	*/
1626	if (pVCpu->idCpu == 0)
1627	{
1628	vmR3SuspendDoWork(pVM);
1629	int rc = vmR3TrySetState(pVM, "VMR3Suspend", 1,
1630	VMSTATE_SUSPENDED_LS, VMSTATE_SUSPENDING_LS);
1631	if (RT_FAILURE(rc))
1632	return VERR_VM_UNEXPECTED_UNSTABLE_STATE;
1633
1634	*pfSuspended = true;
1635	}
1636
1637	return VINF_EM_SUSPEND;
1638	}
1639
1640
1641	/**
1642	* EMT rendezvous worker that VMR3Save and VMR3Teleport uses to clean up a
1643	* SSMR3LiveDoStep1 failure.
1644	*
1645	* Doing this as a rendezvous operation avoids all annoying transition
1646	* states.
1647	*
1648	* @returns VERR_VM_INVALID_VM_STATE, VINF_SUCCESS or some specific VERR_SSM_*
1649	* status code. (This is a strict return code, see FNVMMEMTRENDEZVOUS.)
1650	*
1651	* @param pVM The cross context VM structure.
1652	* @param pVCpu The cross context virtual CPU structure of the calling EMT.
1653	* @param pvUser The pfSuspended argument of vmR3SaveTeleport.
1654	*/
1655	static DECLCALLBACK(VBOXSTRICTRC) vmR3LiveDoStep1Cleanup(PVM pVM, PVMCPU pVCpu, void *pvUser)
1656	{
1657	LogFlow(("vmR3LiveDoStep1Cleanup: pVM=%p pVCpu=%p/#%u\n", pVM, pVCpu, pVCpu->idCpu));
1658	bool pfSuspended = (bool )pvUser;
1659	NOREF(pVCpu);
1660
1661	int rc = vmR3TrySetState(pVM, "vmR3LiveDoStep1Cleanup", 8,
1662	VMSTATE_OFF, VMSTATE_OFF_LS, /* 1 */
1663	VMSTATE_FATAL_ERROR, VMSTATE_FATAL_ERROR_LS, /* 2 */
1664	VMSTATE_GURU_MEDITATION, VMSTATE_GURU_MEDITATION_LS, /* 3 */
1665	VMSTATE_SUSPENDED, VMSTATE_SUSPENDED_LS, /* 4 */
1666	VMSTATE_SUSPENDED, VMSTATE_SAVING,
1667	VMSTATE_SUSPENDED, VMSTATE_SUSPENDED_EXT_LS,
1668	VMSTATE_RUNNING, VMSTATE_RUNNING_LS,
1669	VMSTATE_DEBUGGING, VMSTATE_DEBUGGING_LS);
1670	if (rc == 1)
1671	rc = VERR_SSM_LIVE_POWERED_OFF;
1672	else if (rc == 2)
1673	rc = VERR_SSM_LIVE_FATAL_ERROR;
1674	else if (rc == 3)
1675	rc = VERR_SSM_LIVE_GURU_MEDITATION;
1676	else if (rc == 4)
1677	{
1678	*pfSuspended = true;
1679	rc = VINF_SUCCESS;
1680	}
1681	else if (rc > 0)
1682	rc = VINF_SUCCESS;
1683	return rc;
1684	}
1685
1686
1687	/**
1688	* EMT(0) worker for VMR3Save and VMR3Teleport that completes the live save.
1689	*
1690	* @returns VBox status code.
1691	* @retval VINF_SSM_LIVE_SUSPENDED if VMR3Suspend was called.
1692	*
1693	* @param pVM The cross context VM structure.
1694	* @param pSSM The handle of saved state operation.
1695	*
1696	* @thread EMT(0)
1697	*/
1698	static DECLCALLBACK(int) vmR3LiveDoStep2(PVM pVM, PSSMHANDLE pSSM)
1699	{
1700	LogFlow(("vmR3LiveDoStep2: pVM=%p pSSM=%p\n", pVM, pSSM));
1701	VM_ASSERT_EMT0(pVM);
1702
1703	/*
1704	* Advance the state and mark if VMR3Suspend was called.
1705	*/
1706	int rc = VINF_SUCCESS;
1707	VMSTATE enmVMState = VMR3GetState(pVM);
1708	if (enmVMState == VMSTATE_SUSPENDED_LS)
1709	vmR3SetState(pVM, VMSTATE_SAVING, VMSTATE_SUSPENDED_LS);
1710	else
1711	{
1712	if (enmVMState != VMSTATE_SAVING)
1713	vmR3SetState(pVM, VMSTATE_SAVING, VMSTATE_SUSPENDED_EXT_LS);
1714	rc = VINF_SSM_LIVE_SUSPENDED;
1715	}
1716
1717	/*
1718	* Finish up and release the handle. Careful with the status codes.
1719	*/
1720	int rc2 = SSMR3LiveDoStep2(pSSM);
1721	if (rc == VINF_SUCCESS \|\| (RT_FAILURE(rc2) && RT_SUCCESS(rc)))
1722	rc = rc2;
1723
1724	rc2 = SSMR3LiveDone(pSSM);
1725	if (rc == VINF_SUCCESS \|\| (RT_FAILURE(rc2) && RT_SUCCESS(rc)))
1726	rc = rc2;
1727
1728	/*
1729	* Advance to the final state and return.
1730	*/
1731	vmR3SetState(pVM, VMSTATE_SUSPENDED, VMSTATE_SAVING);
1732	Assert(rc > VINF_EM_LAST \|\| rc < VINF_EM_FIRST);
1733	return rc;
1734	}
1735
1736
1737	/**
1738	* Worker for vmR3SaveTeleport that validates the state and calls SSMR3Save or
1739	* SSMR3LiveSave.
1740	*
1741	* @returns VBox status code.
1742	*
1743	* @param pVM The cross context VM structure.
1744	* @param cMsMaxDowntime The maximum downtime given as milliseconds.
1745	* @param pszFilename The name of the file. NULL if pStreamOps is used.
1746	* @param pStreamOps The stream methods. NULL if pszFilename is used.
1747	* @param pvStreamOpsUser The user argument to the stream methods.
1748	* @param enmAfter What to do afterwards.
1749	* @param pfnProgress Progress callback. Optional.
1750	* @param pvProgressUser User argument for the progress callback.
1751	* @param ppSSM Where to return the saved state handle in case of a
1752	* live snapshot scenario.
1753	* @param fSkipStateChanges Set if we're supposed to skip state changes (FTM delta case)
1754	*
1755	* @thread EMT
1756	*/
1757	static DECLCALLBACK(int) vmR3Save(PVM pVM, uint32_t cMsMaxDowntime, const char pszFilename, PCSSMSTRMOPS pStreamOps, void pvStreamOpsUser,
1758	SSMAFTER enmAfter, PFNVMPROGRESS pfnProgress, void pvProgressUser, PSSMHANDLE ppSSM,
1759	bool fSkipStateChanges)
1760	{
1761	int rc = VINF_SUCCESS;
1762
1763	LogFlow(("vmR3Save: pVM=%p cMsMaxDowntime=%u pszFilename=%p:{%s} pStreamOps=%p pvStreamOpsUser=%p enmAfter=%d pfnProgress=%p pvProgressUser=%p ppSSM=%p\n",
1764	pVM, cMsMaxDowntime, pszFilename, pszFilename, pStreamOps, pvStreamOpsUser, enmAfter, pfnProgress, pvProgressUser, ppSSM));
1765
1766	/*
1767	* Validate input.
1768	*/
1769	AssertPtrNull(pszFilename);
1770	AssertPtrNull(pStreamOps);
1771	AssertPtr(pVM);
1772	Assert( enmAfter == SSMAFTER_DESTROY
1773	\|\| enmAfter == SSMAFTER_CONTINUE
1774	\|\| enmAfter == SSMAFTER_TELEPORT);
1775	AssertPtr(ppSSM);
1776	*ppSSM = NULL;
1777
1778	/*
1779	* Change the state and perform/start the saving.
1780	*/
1781	if (!fSkipStateChanges)
1782	{
1783	rc = vmR3TrySetState(pVM, "VMR3Save", 2,
1784	VMSTATE_SAVING, VMSTATE_SUSPENDED,
1785	VMSTATE_RUNNING_LS, VMSTATE_RUNNING);
1786	}
1787	else
1788	{
1789	Assert(enmAfter != SSMAFTER_TELEPORT);
1790	rc = 1;
1791	}
1792
1793	if (rc == 1 && enmAfter != SSMAFTER_TELEPORT)
1794	{
1795	rc = SSMR3Save(pVM, pszFilename, pStreamOps, pvStreamOpsUser, enmAfter, pfnProgress, pvProgressUser);
1796	if (!fSkipStateChanges)
1797	vmR3SetState(pVM, VMSTATE_SUSPENDED, VMSTATE_SAVING);
1798	}
1799	else if (rc == 2 \|\| enmAfter == SSMAFTER_TELEPORT)
1800	{
1801	Assert(!fSkipStateChanges);
1802	if (enmAfter == SSMAFTER_TELEPORT)
1803	pVM->vm.s.fTeleportedAndNotFullyResumedYet = true;
1804	rc = SSMR3LiveSave(pVM, cMsMaxDowntime, pszFilename, pStreamOps, pvStreamOpsUser,
1805	enmAfter, pfnProgress, pvProgressUser, ppSSM);
1806	/* (We're not subject to cancellation just yet.) */
1807	}
1808	else
1809	Assert(RT_FAILURE(rc));
1810	return rc;
1811	}
1812
1813
1814	/**
1815	* Common worker for VMR3Save and VMR3Teleport.
1816	*
1817	* @returns VBox status code.
1818	*
1819	* @param pVM The cross context VM structure.
1820	* @param cMsMaxDowntime The maximum downtime given as milliseconds.
1821	* @param pszFilename The name of the file. NULL if pStreamOps is used.
1822	* @param pStreamOps The stream methods. NULL if pszFilename is used.
1823	* @param pvStreamOpsUser The user argument to the stream methods.
1824	* @param enmAfter What to do afterwards.
1825	* @param pfnProgress Progress callback. Optional.
1826	* @param pvProgressUser User argument for the progress callback.
1827	* @param pfSuspended Set if we suspended the VM.
1828	* @param fSkipStateChanges Set if we're supposed to skip state changes (FTM delta case)
1829	*
1830	* @thread Non-EMT
1831	*/
1832	static int vmR3SaveTeleport(PVM pVM, uint32_t cMsMaxDowntime,
1833	const char pszFilename, PCSSMSTRMOPS pStreamOps, void pvStreamOpsUser,
1834	SSMAFTER enmAfter, PFNVMPROGRESS pfnProgress, void pvProgressUser, bool pfSuspended,
1835	bool fSkipStateChanges)
1836	{
1837	/*
1838	* Request the operation in EMT(0).
1839	*/
1840	PSSMHANDLE pSSM;
1841	int rc = VMR3ReqCallWait(pVM, 0 /idDstCpu/,
1842	(PFNRT)vmR3Save, 10, pVM, cMsMaxDowntime, pszFilename, pStreamOps, pvStreamOpsUser,
1843	enmAfter, pfnProgress, pvProgressUser, &pSSM, fSkipStateChanges);
1844	if ( RT_SUCCESS(rc)
1845	&& pSSM)
1846	{
1847	Assert(!fSkipStateChanges);
1848
1849	/*
1850	* Live snapshot.
1851	*
1852	* The state handling here is kind of tricky, doing it on EMT(0) helps
1853	* a bit. See the VMSTATE diagram for details.
1854	*/
1855	rc = SSMR3LiveDoStep1(pSSM);
1856	if (RT_SUCCESS(rc))
1857	{
1858	if (VMR3GetState(pVM) != VMSTATE_SAVING)
1859	for (;;)
1860	{
1861	/* Try suspend the VM. */
1862	rc = VMMR3EmtRendezvous(pVM, VMMEMTRENDEZVOUS_FLAGS_TYPE_DESCENDING \| VMMEMTRENDEZVOUS_FLAGS_STOP_ON_ERROR,
1863	vmR3LiveDoSuspend, pfSuspended);
1864	if (rc != VERR_TRY_AGAIN)
1865	break;
1866
1867	/* Wait for the state to change. */
1868	RTThreadSleep(250); /** @todo Live Migration: fix this polling wait by some smart use of multiple release event semaphores.. */
1869	}
1870	if (RT_SUCCESS(rc))
1871	rc = VMR3ReqCallWait(pVM, 0 /idDstCpu/, (PFNRT)vmR3LiveDoStep2, 2, pVM, pSSM);
1872	else
1873	{
1874	int rc2 = VMR3ReqCallWait(pVM, 0 /idDstCpu/, (PFNRT)SSMR3LiveDone, 1, pSSM);
1875	AssertMsg(rc2 == rc, ("%Rrc != %Rrc\n", rc2, rc)); NOREF(rc2);
1876	}
1877	}
1878	else
1879	{
1880	int rc2 = VMR3ReqCallWait(pVM, 0 /idDstCpu/, (PFNRT)SSMR3LiveDone, 1, pSSM);
1881	AssertMsg(rc2 == rc, ("%Rrc != %Rrc\n", rc2, rc));
1882
1883	rc2 = VMMR3EmtRendezvous(pVM, VMMEMTRENDEZVOUS_FLAGS_TYPE_ONCE, vmR3LiveDoStep1Cleanup, pfSuspended);
1884	if (RT_FAILURE(rc2) && rc == VERR_SSM_CANCELLED)
1885	rc = rc2;
1886	}
1887	}
1888
1889	return rc;
1890	}
1891
1892
1893	/**
1894	* Save current VM state.
1895	*
1896	* Can be used for both saving the state and creating snapshots.
1897	*
1898	* When called for a VM in the Running state, the saved state is created live
1899	* and the VM is only suspended when the final part of the saving is preformed.
1900	* The VM state will not be restored to Running in this case and it's up to the
1901	* caller to call VMR3Resume if this is desirable. (The rational is that the
1902	* caller probably wish to reconfigure the disks before resuming the VM.)
1903	*
1904	* @returns VBox status code.
1905	*
1906	* @param pUVM The VM which state should be saved.
1907	* @param pszFilename The name of the save state file.
1908	* @param fContinueAfterwards Whether continue execution afterwards or not.
1909	* When in doubt, set this to true.
1910	* @param pfnProgress Progress callback. Optional.
1911	* @param pvUser User argument for the progress callback.
1912	* @param pfSuspended Set if we suspended the VM.
1913	*
1914	* @thread Non-EMT.
1915	* @vmstate Suspended or Running
1916	* @vmstateto Saving+Suspended or
1917	* RunningLS+SuspendingLS+SuspendedLS+Saving+Suspended.
1918	*/
1919	VMMR3DECL(int) VMR3Save(PUVM pUVM, const char pszFilename, bool fContinueAfterwards, PFNVMPROGRESS pfnProgress, void pvUser,
1920	bool *pfSuspended)
1921	{
1922	LogFlow(("VMR3Save: pUVM=%p pszFilename=%p:{%s} fContinueAfterwards=%RTbool pfnProgress=%p pvUser=%p pfSuspended=%p\n",
1923	pUVM, pszFilename, pszFilename, fContinueAfterwards, pfnProgress, pvUser, pfSuspended));
1924
1925	/*
1926	* Validate input.
1927	*/
1928	AssertPtr(pfSuspended);
1929	*pfSuspended = false;
1930	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
1931	PVM pVM = pUVM->pVM;
1932	VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
1933	VM_ASSERT_OTHER_THREAD(pVM);
1934	AssertReturn(VALID_PTR(pszFilename), VERR_INVALID_POINTER);
1935	AssertReturn(*pszFilename, VERR_INVALID_PARAMETER);
1936	AssertPtrNullReturn(pfnProgress, VERR_INVALID_POINTER);
1937
1938	/*
1939	* Join paths with VMR3Teleport.
1940	*/
1941	SSMAFTER enmAfter = fContinueAfterwards ? SSMAFTER_CONTINUE : SSMAFTER_DESTROY;
1942	int rc = vmR3SaveTeleport(pVM, 250 /cMsMaxDowntime/,
1943	pszFilename, NULL /* pStreamOps /, NULL / pvStreamOpsUser */,
1944	enmAfter, pfnProgress, pvUser, pfSuspended,
1945	false /* fSkipStateChanges */);
1946	LogFlow(("VMR3Save: returns %Rrc (pfSuspended=%RTbool)\n", rc, pfSuspended));
1947	return rc;
1948	}
1949
1950	/**
1951	* Save current VM state (used by FTM)
1952	*
1953	*
1954	* @returns VBox status code.
1955	*
1956	* @param pUVM The user mode VM handle.
1957	* @param pStreamOps The stream methods.
1958	* @param pvStreamOpsUser The user argument to the stream methods.
1959	* @param pfSuspended Set if we suspended the VM.
1960	* @param fSkipStateChanges Set if we're supposed to skip state changes (FTM delta case)
1961	*
1962	* @thread Any
1963	* @vmstate Suspended or Running
1964	* @vmstateto Saving+Suspended or
1965	* RunningLS+SuspendingLS+SuspendedLS+Saving+Suspended.
1966	*/
1967	VMMR3_INT_DECL(int) VMR3SaveFT(PUVM pUVM, PCSSMSTRMOPS pStreamOps, void pvStreamOpsUser, bool pfSuspended, bool fSkipStateChanges)
1968	{
1969	LogFlow(("VMR3SaveFT: pUVM=%p pStreamOps=%p pvSteamOpsUser=%p pfSuspended=%p\n",
1970	pUVM, pStreamOps, pvStreamOpsUser, pfSuspended));
1971
1972	/*
1973	* Validate input.
1974	*/
1975	AssertPtr(pfSuspended);
1976	*pfSuspended = false;
1977	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
1978	PVM pVM = pUVM->pVM;
1979	VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
1980	AssertReturn(pStreamOps, VERR_INVALID_PARAMETER);
1981
1982	/*
1983	* Join paths with VMR3Teleport.
1984	*/
1985	int rc = vmR3SaveTeleport(pVM, 250 /cMsMaxDowntime/,
1986	NULL, pStreamOps, pvStreamOpsUser,
1987	SSMAFTER_CONTINUE, NULL, NULL, pfSuspended,
1988	fSkipStateChanges);
1989	LogFlow(("VMR3SaveFT: returns %Rrc (pfSuspended=%RTbool)\n", rc, pfSuspended));
1990	return rc;
1991	}
1992
1993
1994	/**
1995	* Teleport the VM (aka live migration).
1996	*
1997	* @returns VBox status code.
1998	*
1999	* @param pUVM The VM which state should be saved.
2000	* @param cMsMaxDowntime The maximum downtime given as milliseconds.
2001	* @param pStreamOps The stream methods.
2002	* @param pvStreamOpsUser The user argument to the stream methods.
2003	* @param pfnProgress Progress callback. Optional.
2004	* @param pvProgressUser User argument for the progress callback.
2005	* @param pfSuspended Set if we suspended the VM.
2006	*
2007	* @thread Non-EMT.
2008	* @vmstate Suspended or Running
2009	* @vmstateto Saving+Suspended or
2010	* RunningLS+SuspendingLS+SuspendedLS+Saving+Suspended.
2011	*/
2012	VMMR3DECL(int) VMR3Teleport(PUVM pUVM, uint32_t cMsMaxDowntime, PCSSMSTRMOPS pStreamOps, void *pvStreamOpsUser,
2013	PFNVMPROGRESS pfnProgress, void pvProgressUser, bool pfSuspended)
2014	{
2015	LogFlow(("VMR3Teleport: pUVM=%p cMsMaxDowntime=%u pStreamOps=%p pvStreamOps=%p pfnProgress=%p pvProgressUser=%p\n",
2016	pUVM, cMsMaxDowntime, pStreamOps, pvStreamOpsUser, pfnProgress, pvProgressUser));
2017
2018	/*
2019	* Validate input.
2020	*/
2021	AssertPtr(pfSuspended);
2022	*pfSuspended = false;
2023	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
2024	PVM pVM = pUVM->pVM;
2025	VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
2026	VM_ASSERT_OTHER_THREAD(pVM);
2027	AssertPtrReturn(pStreamOps, VERR_INVALID_POINTER);
2028	AssertPtrNullReturn(pfnProgress, VERR_INVALID_POINTER);
2029
2030	/*
2031	* Join paths with VMR3Save.
2032	*/
2033	int rc = vmR3SaveTeleport(pVM, cMsMaxDowntime,
2034	NULL /pszFilename/, pStreamOps, pvStreamOpsUser,
2035	SSMAFTER_TELEPORT, pfnProgress, pvProgressUser, pfSuspended,
2036	false /* fSkipStateChanges */);
2037	LogFlow(("VMR3Teleport: returns %Rrc (pfSuspended=%RTbool)\n", rc, pfSuspended));
2038	return rc;
2039	}
2040
2041
2042
2043	/**
2044	* EMT(0) worker for VMR3LoadFromFile and VMR3LoadFromStream.
2045	*
2046	* @returns VBox status code.
2047	*
2048	* @param pUVM Pointer to the VM.
2049	* @param pszFilename The name of the file. NULL if pStreamOps is used.
2050	* @param pStreamOps The stream methods. NULL if pszFilename is used.
2051	* @param pvStreamOpsUser The user argument to the stream methods.
2052	* @param pfnProgress Progress callback. Optional.
2053	* @param pvProgressUser User argument for the progress callback.
2054	* @param fTeleporting Indicates whether we're teleporting or not.
2055	* @param fSkipStateChanges Set if we're supposed to skip state changes (FTM delta case)
2056	*
2057	* @thread EMT.
2058	*/
2059	static DECLCALLBACK(int) vmR3Load(PUVM pUVM, const char pszFilename, PCSSMSTRMOPS pStreamOps, void pvStreamOpsUser,
2060	PFNVMPROGRESS pfnProgress, void *pvProgressUser, bool fTeleporting,
2061	bool fSkipStateChanges)
2062	{
2063	int rc = VINF_SUCCESS;
2064
2065	LogFlow(("vmR3Load: pUVM=%p pszFilename=%p:{%s} pStreamOps=%p pvStreamOpsUser=%p pfnProgress=%p pvProgressUser=%p fTeleporting=%RTbool\n",
2066	pUVM, pszFilename, pszFilename, pStreamOps, pvStreamOpsUser, pfnProgress, pvProgressUser, fTeleporting));
2067
2068	/*
2069	* Validate input (paranoia).
2070	*/
2071	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
2072	PVM pVM = pUVM->pVM;
2073	VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
2074	AssertPtrNull(pszFilename);
2075	AssertPtrNull(pStreamOps);
2076	AssertPtrNull(pfnProgress);
2077
2078	if (!fSkipStateChanges)
2079	{
2080	/*
2081	* Change the state and perform the load.
2082	*
2083	* Always perform a relocation round afterwards to make sure hypervisor
2084	* selectors and such are correct.
2085	*/
2086	rc = vmR3TrySetState(pVM, "VMR3Load", 2,
2087	VMSTATE_LOADING, VMSTATE_CREATED,
2088	VMSTATE_LOADING, VMSTATE_SUSPENDED);
2089	if (RT_FAILURE(rc))
2090	return rc;
2091	}
2092	pVM->vm.s.fTeleportedAndNotFullyResumedYet = fTeleporting;
2093
2094	uint32_t cErrorsPriorToSave = VMR3GetErrorCount(pUVM);
2095	rc = SSMR3Load(pVM, pszFilename, pStreamOps, pvStreamOpsUser, SSMAFTER_RESUME, pfnProgress, pvProgressUser);
2096	if (RT_SUCCESS(rc))
2097	{
2098	VMR3Relocate(pVM, 0 /offDelta/);
2099	if (!fSkipStateChanges)
2100	vmR3SetState(pVM, VMSTATE_SUSPENDED, VMSTATE_LOADING);
2101	}
2102	else
2103	{
2104	pVM->vm.s.fTeleportedAndNotFullyResumedYet = false;
2105	if (!fSkipStateChanges)
2106	vmR3SetState(pVM, VMSTATE_LOAD_FAILURE, VMSTATE_LOADING);
2107
2108	if (cErrorsPriorToSave == VMR3GetErrorCount(pUVM))
2109	rc = VMSetError(pVM, rc, RT_SRC_POS,
2110	N_("Unable to restore the virtual machine's saved state from '%s'. "
2111	"It may be damaged or from an older version of VirtualBox. "
2112	"Please discard the saved state before starting the virtual machine"),
2113	pszFilename);
2114	}
2115
2116	return rc;
2117	}
2118
2119
2120	/**
2121	* Loads a VM state into a newly created VM or a one that is suspended.
2122	*
2123	* To restore a saved state on VM startup, call this function and then resume
2124	* the VM instead of powering it on.
2125	*
2126	* @returns VBox status code.
2127	*
2128	* @param pUVM The user mode VM structure.
2129	* @param pszFilename The name of the save state file.
2130	* @param pfnProgress Progress callback. Optional.
2131	* @param pvUser User argument for the progress callback.
2132	*
2133	* @thread Any thread.
2134	* @vmstate Created, Suspended
2135	* @vmstateto Loading+Suspended
2136	*/
2137	VMMR3DECL(int) VMR3LoadFromFile(PUVM pUVM, const char pszFilename, PFNVMPROGRESS pfnProgress, void pvUser)
2138	{
2139	LogFlow(("VMR3LoadFromFile: pUVM=%p pszFilename=%p:{%s} pfnProgress=%p pvUser=%p\n",
2140	pUVM, pszFilename, pszFilename, pfnProgress, pvUser));
2141
2142	/*
2143	* Validate input.
2144	*/
2145	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
2146	AssertPtrReturn(pszFilename, VERR_INVALID_POINTER);
2147
2148	/*
2149	* Forward the request to EMT(0). No need to setup a rendezvous here
2150	* since there is no execution taking place when this call is allowed.
2151	*/
2152	int rc = VMR3ReqCallWaitU(pUVM, 0 /idDstCpu/, (PFNRT)vmR3Load, 8,
2153	pUVM, pszFilename, (uintptr_t)NULL /pStreamOps/, (uintptr_t)NULL /pvStreamOpsUser/, pfnProgress, pvUser,
2154	false /fTeleporting/, false /* fSkipStateChanges */);
2155	LogFlow(("VMR3LoadFromFile: returns %Rrc\n", rc));
2156	return rc;
2157	}
2158
2159
2160	/**
2161	* VMR3LoadFromFile for arbitrary file streams.
2162	*
2163	* @returns VBox status code.
2164	*
2165	* @param pUVM Pointer to the VM.
2166	* @param pStreamOps The stream methods.
2167	* @param pvStreamOpsUser The user argument to the stream methods.
2168	* @param pfnProgress Progress callback. Optional.
2169	* @param pvProgressUser User argument for the progress callback.
2170	*
2171	* @thread Any thread.
2172	* @vmstate Created, Suspended
2173	* @vmstateto Loading+Suspended
2174	*/
2175	VMMR3DECL(int) VMR3LoadFromStream(PUVM pUVM, PCSSMSTRMOPS pStreamOps, void *pvStreamOpsUser,
2176	PFNVMPROGRESS pfnProgress, void *pvProgressUser)
2177	{
2178	LogFlow(("VMR3LoadFromStream: pUVM=%p pStreamOps=%p pvStreamOpsUser=%p pfnProgress=%p pvProgressUser=%p\n",
2179	pUVM, pStreamOps, pvStreamOpsUser, pfnProgress, pvProgressUser));
2180
2181	/*
2182	* Validate input.
2183	*/
2184	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
2185	AssertPtrReturn(pStreamOps, VERR_INVALID_POINTER);
2186
2187	/*
2188	* Forward the request to EMT(0). No need to setup a rendezvous here
2189	* since there is no execution taking place when this call is allowed.
2190	*/
2191	int rc = VMR3ReqCallWaitU(pUVM, 0 /idDstCpu/, (PFNRT)vmR3Load, 8,
2192	pUVM, (uintptr_t)NULL /pszFilename/, pStreamOps, pvStreamOpsUser, pfnProgress, pvProgressUser,
2193	true /fTeleporting/, false /* fSkipStateChanges */);
2194	LogFlow(("VMR3LoadFromStream: returns %Rrc\n", rc));
2195	return rc;
2196	}
2197
2198
2199	/**
2200	* Special version for the FT component, it skips state changes.
2201	*
2202	* @returns VBox status code.
2203	*
2204	* @param pUVM The VM handle.
2205	* @param pStreamOps The stream methods.
2206	* @param pvStreamOpsUser The user argument to the stream methods.
2207	*
2208	* @thread Any thread.
2209	* @vmstate Created, Suspended
2210	* @vmstateto Loading+Suspended
2211	*/
2212	VMMR3_INT_DECL(int) VMR3LoadFromStreamFT(PUVM pUVM, PCSSMSTRMOPS pStreamOps, void *pvStreamOpsUser)
2213	{
2214	LogFlow(("VMR3LoadFromStreamFT: pUVM=%p pStreamOps=%p pvStreamOpsUser=%p\n", pUVM, pStreamOps, pvStreamOpsUser));
2215
2216	/*
2217	* Validate input.
2218	*/
2219	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
2220	AssertPtrReturn(pStreamOps, VERR_INVALID_POINTER);
2221
2222	/*
2223	* Forward the request to EMT(0). No need to setup a rendezvous here
2224	* since there is no execution taking place when this call is allowed.
2225	*/
2226	int rc = VMR3ReqCallWaitU(pUVM, 0 /idDstCpu/, (PFNRT)vmR3Load, 8,
2227	pUVM, (uintptr_t)NULL /pszFilename/, pStreamOps, pvStreamOpsUser, NULL, NULL,
2228	true /fTeleporting/, true /* fSkipStateChanges */);
2229	LogFlow(("VMR3LoadFromStream: returns %Rrc\n", rc));
2230	return rc;
2231	}
2232
2233	/**
2234	* EMT rendezvous worker for VMR3PowerOff.
2235	*
2236	* @returns VERR_VM_INVALID_VM_STATE or VINF_EM_OFF. (This is a strict
2237	* return code, see FNVMMEMTRENDEZVOUS.)
2238	*
2239	* @param pVM The cross context VM structure.
2240	* @param pVCpu The cross context virtual CPU structure of the calling EMT.
2241	* @param pvUser Ignored.
2242	*/
2243	static DECLCALLBACK(VBOXSTRICTRC) vmR3PowerOff(PVM pVM, PVMCPU pVCpu, void *pvUser)
2244	{
2245	LogFlow(("vmR3PowerOff: pVM=%p pVCpu=%p/#%u\n", pVM, pVCpu, pVCpu->idCpu));
2246	Assert(!pvUser); NOREF(pvUser);
2247
2248	/*
2249	* The first EMT thru here will change the state to PoweringOff.
2250	*/
2251	if (pVCpu->idCpu == pVM->cCpus - 1)
2252	{
2253	int rc = vmR3TrySetState(pVM, "VMR3PowerOff", 11,
2254	VMSTATE_POWERING_OFF, VMSTATE_RUNNING, /* 1 */
2255	VMSTATE_POWERING_OFF, VMSTATE_SUSPENDED, /* 2 */
2256	VMSTATE_POWERING_OFF, VMSTATE_DEBUGGING, /* 3 */
2257	VMSTATE_POWERING_OFF, VMSTATE_LOAD_FAILURE, /* 4 */
2258	VMSTATE_POWERING_OFF, VMSTATE_GURU_MEDITATION, /* 5 */
2259	VMSTATE_POWERING_OFF, VMSTATE_FATAL_ERROR, /* 6 */
2260	VMSTATE_POWERING_OFF, VMSTATE_CREATED, /* 7 / /* @todo update the diagram! */
2261	VMSTATE_POWERING_OFF_LS, VMSTATE_RUNNING_LS, /* 8 */
2262	VMSTATE_POWERING_OFF_LS, VMSTATE_DEBUGGING_LS, /* 9 */
2263	VMSTATE_POWERING_OFF_LS, VMSTATE_GURU_MEDITATION_LS,/* 10 */
2264	VMSTATE_POWERING_OFF_LS, VMSTATE_FATAL_ERROR_LS); /* 11 */
2265	if (RT_FAILURE(rc))
2266	return rc;
2267	if (rc >= 7)
2268	SSMR3Cancel(pVM->pUVM);
2269	}
2270
2271	/*
2272	* Check the state.
2273	*/
2274	VMSTATE enmVMState = VMR3GetState(pVM);
2275	AssertMsgReturn( enmVMState == VMSTATE_POWERING_OFF
2276	\|\| enmVMState == VMSTATE_POWERING_OFF_LS,
2277	("%s\n", VMR3GetStateName(enmVMState)),
2278	VERR_VM_INVALID_VM_STATE);
2279
2280	/*
2281	* EMT(0) does the actual power off work here after all the other EMTs
2282	* have been thru and entered the STOPPED state.
2283	*/
2284	VMCPU_SET_STATE(pVCpu, VMCPUSTATE_STOPPED);
2285	if (pVCpu->idCpu == 0)
2286	{
2287	/*
2288	* For debugging purposes, we will log a summary of the guest state at this point.
2289	*/
2290	if (enmVMState != VMSTATE_GURU_MEDITATION)
2291	{
2292	/** @todo make the state dumping at VMR3PowerOff optional. */
2293	bool fOldBuffered = RTLogRelSetBuffering(true /fBuffered/);
2294	RTLogRelPrintf("**************** Guest state at power off for VCpu %u ****************\n", pVCpu->idCpu);
2295	DBGFR3InfoEx(pVM->pUVM, pVCpu->idCpu, "cpumguest", "verbose", DBGFR3InfoLogRelHlp());
2296	RTLogRelPrintf("***\n");
2297	DBGFR3InfoEx(pVM->pUVM, pVCpu->idCpu, "cpumguesthwvirt", "verbose", DBGFR3InfoLogRelHlp());
2298	RTLogRelPrintf("***\n");
2299	DBGFR3InfoEx(pVM->pUVM, pVCpu->idCpu, "mode", NULL, DBGFR3InfoLogRelHlp());
2300	RTLogRelPrintf("***\n");
2301	DBGFR3Info(pVM->pUVM, "activetimers", NULL, DBGFR3InfoLogRelHlp());
2302	RTLogRelPrintf("***\n");
2303	DBGFR3Info(pVM->pUVM, "gdt", NULL, DBGFR3InfoLogRelHlp());
2304	/** @todo dump guest call stack. */
2305	RTLogRelSetBuffering(fOldBuffered);
2306	RTLogRelPrintf("************ End of Guest state at power off *************\n");
2307	}
2308
2309	/*
2310	* Perform the power off notifications and advance the state to
2311	* Off or OffLS.
2312	*/
2313	PDMR3PowerOff(pVM);
2314	DBGFR3PowerOff(pVM);
2315
2316	PUVM pUVM = pVM->pUVM;
2317	RTCritSectEnter(&pUVM->vm.s.AtStateCritSect);
2318	enmVMState = pVM->enmVMState;
2319	if (enmVMState == VMSTATE_POWERING_OFF_LS)
2320	vmR3SetStateLocked(pVM, pUVM, VMSTATE_OFF_LS, VMSTATE_POWERING_OFF_LS, false /fSetRatherThanClearFF/);
2321	else
2322	vmR3SetStateLocked(pVM, pUVM, VMSTATE_OFF, VMSTATE_POWERING_OFF, false /fSetRatherThanClearFF/);
2323	RTCritSectLeave(&pUVM->vm.s.AtStateCritSect);
2324	}
2325	else if (enmVMState != VMSTATE_GURU_MEDITATION)
2326	{
2327	/** @todo make the state dumping at VMR3PowerOff optional. */
2328	bool fOldBuffered = RTLogRelSetBuffering(true /fBuffered/);
2329	RTLogRelPrintf("**************** Guest state at power off for VCpu %u ****************\n", pVCpu->idCpu);
2330	DBGFR3InfoEx(pVM->pUVM, pVCpu->idCpu, "cpumguest", "verbose", DBGFR3InfoLogRelHlp());
2331	RTLogRelPrintf("***\n");
2332	DBGFR3InfoEx(pVM->pUVM, pVCpu->idCpu, "cpumguesthwvirt", "verbose", DBGFR3InfoLogRelHlp());
2333	RTLogRelPrintf("***\n");
2334	DBGFR3InfoEx(pVM->pUVM, pVCpu->idCpu, "mode", NULL, DBGFR3InfoLogRelHlp());
2335	RTLogRelPrintf("***\n");
2336	RTLogRelSetBuffering(fOldBuffered);
2337	RTLogRelPrintf("************ End of Guest state at power off for VCpu %u *************\n", pVCpu->idCpu);
2338	}
2339
2340	return VINF_EM_OFF;
2341	}
2342
2343
2344	/**
2345	* Power off the VM.
2346	*
2347	* @returns VBox status code. When called on EMT, this will be a strict status
2348	* code that has to be propagated up the call stack.
2349	*
2350	* @param pUVM The handle of the VM to be powered off.
2351	*
2352	* @thread Any thread.
2353	* @vmstate Suspended, Running, Guru Meditation, Load Failure
2354	* @vmstateto Off or OffLS
2355	*/
2356	VMMR3DECL(int) VMR3PowerOff(PUVM pUVM)
2357	{
2358	LogFlow(("VMR3PowerOff: pUVM=%p\n", pUVM));
2359	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
2360	PVM pVM = pUVM->pVM;
2361	VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
2362
2363	/*
2364	* Gather all the EMTs to make sure there are no races before
2365	* changing the VM state.
2366	*/
2367	int rc = VMMR3EmtRendezvous(pVM, VMMEMTRENDEZVOUS_FLAGS_TYPE_DESCENDING \| VMMEMTRENDEZVOUS_FLAGS_STOP_ON_ERROR,
2368	vmR3PowerOff, NULL);
2369	LogFlow(("VMR3PowerOff: returns %Rrc\n", rc));
2370	return rc;
2371	}
2372
2373
2374	/**
2375	* Destroys the VM.
2376	*
2377	* The VM must be powered off (or never really powered on) to call this
2378	* function. The VM handle is destroyed and can no longer be used up successful
2379	* return.
2380	*
2381	* @returns VBox status code.
2382	*
2383	* @param pUVM The user mode VM handle.
2384	*
2385	* @thread Any none emulation thread.
2386	* @vmstate Off, Created
2387	* @vmstateto N/A
2388	*/
2389	VMMR3DECL(int) VMR3Destroy(PUVM pUVM)
2390	{
2391	LogFlow(("VMR3Destroy: pUVM=%p\n", pUVM));
2392
2393	/*
2394	* Validate input.
2395	*/
2396	if (!pUVM)
2397	return VERR_INVALID_VM_HANDLE;
2398	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
2399	PVM pVM = pUVM->pVM;
2400	VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
2401	AssertLogRelReturn(!VM_IS_EMT(pVM), VERR_VM_THREAD_IS_EMT);
2402
2403	/*
2404	* Change VM state to destroying and aall vmR3Destroy on each of the EMTs
2405	* ending with EMT(0) doing the bulk of the cleanup.
2406	*/
2407	int rc = vmR3TrySetState(pVM, "VMR3Destroy", 1, VMSTATE_DESTROYING, VMSTATE_OFF);
2408	if (RT_FAILURE(rc))
2409	return rc;
2410
2411	rc = VMR3ReqCallWait(pVM, VMCPUID_ALL_REVERSE, (PFNRT)vmR3Destroy, 1, pVM);
2412	AssertLogRelRC(rc);
2413
2414	/*
2415	* Wait for EMTs to quit and destroy the UVM.
2416	*/
2417	vmR3DestroyUVM(pUVM, 30000);
2418
2419	LogFlow(("VMR3Destroy: returns VINF_SUCCESS\n"));
2420	return VINF_SUCCESS;
2421	}
2422
2423
2424	/**
2425	* Internal destruction worker.
2426	*
2427	* This is either called from VMR3Destroy via VMR3ReqCallU or from
2428	* vmR3EmulationThreadWithId when EMT(0) terminates after having called
2429	* VMR3Destroy().
2430	*
2431	* When called on EMT(0), it will performed the great bulk of the destruction.
2432	* When called on the other EMTs, they will do nothing and the whole purpose is
2433	* to return VINF_EM_TERMINATE so they break out of their run loops.
2434	*
2435	* @returns VINF_EM_TERMINATE.
2436	* @param pVM The cross context VM structure.
2437	*/
2438	DECLCALLBACK(int) vmR3Destroy(PVM pVM)
2439	{
2440	PUVM pUVM = pVM->pUVM;
2441	PVMCPU pVCpu = VMMGetCpu(pVM);
2442	Assert(pVCpu);
2443	LogFlow(("vmR3Destroy: pVM=%p pUVM=%p pVCpu=%p idCpu=%u\n", pVM, pUVM, pVCpu, pVCpu->idCpu));
2444
2445	/*
2446	* Only VCPU 0 does the full cleanup (last).
2447	*/
2448	if (pVCpu->idCpu == 0)
2449	{
2450	/*
2451	* Dump statistics to the log.
2452	*/
2453	#if defined(VBOX_WITH_STATISTICS) \|\| defined(LOG_ENABLED)
2454	RTLogFlags(NULL, "nodisabled nobuffered");
2455	#endif
2456	//#ifdef VBOX_WITH_STATISTICS
2457	// STAMR3Dump(pUVM, "*");
2458	//#else
2459	LogRel(("*********************** Statistics ***********************\n"));
2460	STAMR3DumpToReleaseLog(pUVM, "*");
2461	LogRel(("******************* End of statistics ********************\n"));
2462	//#endif
2463
2464	/*
2465	* Destroy the VM components.
2466	*/
2467	int rc = TMR3Term(pVM);
2468	AssertRC(rc);
2469	#ifdef VBOX_WITH_DEBUGGER
2470	rc = DBGCTcpTerminate(pUVM, pUVM->vm.s.pvDBGC);
2471	pUVM->vm.s.pvDBGC = NULL;
2472	#endif
2473	AssertRC(rc);
2474	rc = FTMR3Term(pVM);
2475	AssertRC(rc);
2476	rc = PDMR3Term(pVM);
2477	AssertRC(rc);
2478	rc = GIMR3Term(pVM);
2479	AssertRC(rc);
2480	rc = DBGFR3Term(pVM);
2481	AssertRC(rc);
2482	rc = IEMR3Term(pVM);
2483	AssertRC(rc);
2484	rc = EMR3Term(pVM);
2485	AssertRC(rc);
2486	rc = IOMR3Term(pVM);
2487	AssertRC(rc);
2488	#ifdef VBOX_WITH_RAW_MODE
2489	rc = CSAMR3Term(pVM);
2490	AssertRC(rc);
2491	rc = PATMR3Term(pVM);
2492	AssertRC(rc);
2493	#endif
2494	rc = TRPMR3Term(pVM);
2495	AssertRC(rc);
2496	rc = SELMR3Term(pVM);
2497	AssertRC(rc);
2498	#ifdef VBOX_WITH_REM
2499	rc = REMR3Term(pVM);
2500	AssertRC(rc);
2501	#endif
2502	rc = HMR3Term(pVM);
2503	AssertRC(rc);
2504	rc = NEMR3Term(pVM);
2505	AssertRC(rc);
2506	rc = PGMR3Term(pVM);
2507	AssertRC(rc);
2508	rc = VMMR3Term(pVM); /* Terminates the ring-0 code! */
2509	AssertRC(rc);
2510	rc = CPUMR3Term(pVM);
2511	AssertRC(rc);
2512	SSMR3Term(pVM);
2513	rc = PDMR3CritSectBothTerm(pVM);
2514	AssertRC(rc);
2515	rc = MMR3Term(pVM);
2516	AssertRC(rc);
2517
2518	/*
2519	* We're done, tell the other EMTs to quit.
2520	*/
2521	ASMAtomicUoWriteBool(&pUVM->vm.s.fTerminateEMT, true);
2522	ASMAtomicWriteU32(&pVM->fGlobalForcedActions, VM_FF_CHECK_VM_STATE); /* Can't hurt... */
2523	LogFlow(("vmR3Destroy: returning %Rrc\n", VINF_EM_TERMINATE));
2524	}
2525
2526	/*
2527	* Decrement the active EMT count here.
2528	*/
2529	PUVMCPU pUVCpu = &pUVM->aCpus[pVCpu->idCpu];
2530	if (!pUVCpu->vm.s.fBeenThruVmDestroy)
2531	{
2532	pUVCpu->vm.s.fBeenThruVmDestroy = true;
2533	ASMAtomicDecU32(&pUVM->vm.s.cActiveEmts);
2534	}
2535	else
2536	AssertFailed();
2537
2538	return VINF_EM_TERMINATE;
2539	}
2540
2541
2542	/**
2543	* Destroys the UVM portion.
2544	*
2545	* This is called as the final step in the VM destruction or as the cleanup
2546	* in case of a creation failure.
2547	*
2548	* @param pUVM The user mode VM structure.
2549	* @param cMilliesEMTWait The number of milliseconds to wait for the emulation
2550	* threads.
2551	*/
2552	static void vmR3DestroyUVM(PUVM pUVM, uint32_t cMilliesEMTWait)
2553	{
2554	/*
2555	* Signal termination of each the emulation threads and
2556	* wait for them to complete.
2557	*/
2558	/* Signal them - in reverse order since EMT(0) waits for the others. */
2559	ASMAtomicUoWriteBool(&pUVM->vm.s.fTerminateEMT, true);
2560	if (pUVM->pVM)
2561	VM_FF_SET(pUVM->pVM, VM_FF_CHECK_VM_STATE); /* Can't hurt... */
2562	VMCPUID iCpu = pUVM->cCpus;
2563	while (iCpu-- > 0)
2564	{
2565	VMR3NotifyGlobalFFU(pUVM, VMNOTIFYFF_FLAGS_DONE_REM);
2566	RTSemEventSignal(pUVM->aCpus[iCpu].vm.s.EventSemWait);
2567	}
2568
2569	/* Wait for EMT(0), it in turn waits for the rest. */
2570	ASMAtomicUoWriteBool(&pUVM->vm.s.fTerminateEMT, true);
2571
2572	RTTHREAD const hSelf = RTThreadSelf();
2573	RTTHREAD hThread = pUVM->aCpus[0].vm.s.ThreadEMT;
2574	if ( hThread != NIL_RTTHREAD
2575	&& hThread != hSelf)
2576	{
2577	int rc2 = RTThreadWait(hThread, RT_MAX(cMilliesEMTWait, 2000), NULL);
2578	if (rc2 == VERR_TIMEOUT) /* avoid the assertion when debugging. */
2579	rc2 = RTThreadWait(hThread, 1000, NULL);
2580	AssertLogRelMsgRC(rc2, ("iCpu=0 rc=%Rrc\n", rc2));
2581	if (RT_SUCCESS(rc2))
2582	pUVM->aCpus[0].vm.s.ThreadEMT = NIL_RTTHREAD;
2583	}
2584
2585	/* Just in case we're in a weird failure situation w/o EMT(0) to do the
2586	waiting, wait the other EMTs too. */
2587	for (iCpu = 1; iCpu < pUVM->cCpus; iCpu++)
2588	{
2589	ASMAtomicXchgHandle(&pUVM->aCpus[iCpu].vm.s.ThreadEMT, NIL_RTTHREAD, &hThread);
2590	if (hThread != NIL_RTTHREAD)
2591	{
2592	if (hThread != hSelf)
2593	{
2594	int rc2 = RTThreadWait(hThread, 250 /ms/, NULL);
2595	AssertLogRelMsgRC(rc2, ("iCpu=%u rc=%Rrc\n", iCpu, rc2));
2596	if (RT_SUCCESS(rc2))
2597	continue;
2598	}
2599	pUVM->aCpus[iCpu].vm.s.ThreadEMT = hThread;
2600	}
2601	}
2602
2603	/* Cleanup the semaphores. */
2604	iCpu = pUVM->cCpus;
2605	while (iCpu-- > 0)
2606	{
2607	RTSemEventDestroy(pUVM->aCpus[iCpu].vm.s.EventSemWait);
2608	pUVM->aCpus[iCpu].vm.s.EventSemWait = NIL_RTSEMEVENT;
2609	}
2610
2611	/*
2612	* Free the event semaphores associated with the request packets.
2613	*/
2614	unsigned cReqs = 0;
2615	for (unsigned i = 0; i < RT_ELEMENTS(pUVM->vm.s.apReqFree); i++)
2616	{
2617	PVMREQ pReq = pUVM->vm.s.apReqFree[i];
2618	pUVM->vm.s.apReqFree[i] = NULL;
2619	for (; pReq; pReq = pReq->pNext, cReqs++)
2620	{
2621	pReq->enmState = VMREQSTATE_INVALID;
2622	RTSemEventDestroy(pReq->EventSem);
2623	}
2624	}
2625	Assert(cReqs == pUVM->vm.s.cReqFree); NOREF(cReqs);
2626
2627	/*
2628	* Kill all queued requests. (There really shouldn't be any!)
2629	*/
2630	for (unsigned i = 0; i < 10; i++)
2631	{
2632	PVMREQ pReqHead = ASMAtomicXchgPtrT(&pUVM->vm.s.pPriorityReqs, NULL, PVMREQ);
2633	if (!pReqHead)
2634	{
2635	pReqHead = ASMAtomicXchgPtrT(&pUVM->vm.s.pNormalReqs, NULL, PVMREQ);
2636	if (!pReqHead)
2637	break;
2638	}
2639	AssertLogRelMsgFailed(("Requests pending! VMR3Destroy caller has to serialize this.\n"));
2640
2641	for (PVMREQ pReq = pReqHead; pReq; pReq = pReq->pNext)
2642	{
2643	ASMAtomicUoWriteS32(&pReq->iStatus, VERR_VM_REQUEST_KILLED);
2644	ASMAtomicWriteSize(&pReq->enmState, VMREQSTATE_INVALID);
2645	RTSemEventSignal(pReq->EventSem);
2646	RTThreadSleep(2);
2647	RTSemEventDestroy(pReq->EventSem);
2648	}
2649	/* give them a chance to respond before we free the request memory. */
2650	RTThreadSleep(32);
2651	}
2652
2653	/*
2654	* Now all queued VCPU requests (again, there shouldn't be any).
2655	*/
2656	for (VMCPUID idCpu = 0; idCpu < pUVM->cCpus; idCpu++)
2657	{
2658	PUVMCPU pUVCpu = &pUVM->aCpus[idCpu];
2659
2660	for (unsigned i = 0; i < 10; i++)
2661	{
2662	PVMREQ pReqHead = ASMAtomicXchgPtrT(&pUVCpu->vm.s.pPriorityReqs, NULL, PVMREQ);
2663	if (!pReqHead)
2664	{
2665	pReqHead = ASMAtomicXchgPtrT(&pUVCpu->vm.s.pNormalReqs, NULL, PVMREQ);
2666	if (!pReqHead)
2667	break;
2668	}
2669	AssertLogRelMsgFailed(("Requests pending! VMR3Destroy caller has to serialize this.\n"));
2670
2671	for (PVMREQ pReq = pReqHead; pReq; pReq = pReq->pNext)
2672	{
2673	ASMAtomicUoWriteS32(&pReq->iStatus, VERR_VM_REQUEST_KILLED);
2674	ASMAtomicWriteSize(&pReq->enmState, VMREQSTATE_INVALID);
2675	RTSemEventSignal(pReq->EventSem);
2676	RTThreadSleep(2);
2677	RTSemEventDestroy(pReq->EventSem);
2678	}
2679	/* give them a chance to respond before we free the request memory. */
2680	RTThreadSleep(32);
2681	}
2682	}
2683
2684	/*
2685	* Make sure the VMMR0.r0 module and whatever else is unloaded.
2686	*/
2687	PDMR3TermUVM(pUVM);
2688
2689	RTCritSectDelete(&pUVM->vm.s.AtErrorCritSect);
2690	RTCritSectDelete(&pUVM->vm.s.AtStateCritSect);
2691
2692	/*
2693	* Terminate the support library if initialized.
2694	*/
2695	if (pUVM->vm.s.pSession)
2696	{
2697	int rc = SUPR3Term(false /fForced/);
2698	AssertRC(rc);
2699	pUVM->vm.s.pSession = NIL_RTR0PTR;
2700	}
2701
2702	/*
2703	* Release the UVM structure reference.
2704	*/
2705	VMR3ReleaseUVM(pUVM);
2706
2707	/*
2708	* Clean up and flush logs.
2709	*/
2710	RTLogFlush(NULL);
2711	}
2712
2713
2714	/**
2715	* Worker which checks integrity of some internal structures.
2716	* This is yet another attempt to track down that AVL tree crash.
2717	*/
2718	static void vmR3CheckIntegrity(PVM pVM)
2719	{
2720	#ifdef VBOX_STRICT
2721	int rc = PGMR3CheckIntegrity(pVM);
2722	AssertReleaseRC(rc);
2723	#else
2724	RT_NOREF_PV(pVM);
2725	#endif
2726	}
2727
2728
2729	/**
2730	* EMT rendezvous worker for VMR3ResetFF for doing soft/warm reset.
2731	*
2732	* @returns VERR_VM_INVALID_VM_STATE, VINF_EM_RESCHEDULE.
2733	* (This is a strict return code, see FNVMMEMTRENDEZVOUS.)
2734	*
2735	* @param pVM The cross context VM structure.
2736	* @param pVCpu The cross context virtual CPU structure of the calling EMT.
2737	* @param pvUser The reset flags.
2738	*/
2739	static DECLCALLBACK(VBOXSTRICTRC) vmR3SoftReset(PVM pVM, PVMCPU pVCpu, void *pvUser)
2740	{
2741	uint32_t fResetFlags = (uint32_t )pvUser;
2742
2743
2744	/*
2745	* The first EMT will try change the state to resetting. If this fails,
2746	* we won't get called for the other EMTs.
2747	*/
2748	if (pVCpu->idCpu == pVM->cCpus - 1)
2749	{
2750	int rc = vmR3TrySetState(pVM, "vmR3ResetSoft", 3,
2751	VMSTATE_SOFT_RESETTING, VMSTATE_RUNNING,
2752	VMSTATE_SOFT_RESETTING, VMSTATE_SUSPENDED,
2753	VMSTATE_SOFT_RESETTING_LS, VMSTATE_RUNNING_LS);
2754	if (RT_FAILURE(rc))
2755	return rc;
2756	pVM->vm.s.cResets++;
2757	pVM->vm.s.cSoftResets++;
2758	}
2759
2760	/*
2761	* Check the state.
2762	*/
2763	VMSTATE enmVMState = VMR3GetState(pVM);
2764	AssertLogRelMsgReturn( enmVMState == VMSTATE_SOFT_RESETTING
2765	\|\| enmVMState == VMSTATE_SOFT_RESETTING_LS,
2766	("%s\n", VMR3GetStateName(enmVMState)),
2767	VERR_VM_UNEXPECTED_UNSTABLE_STATE);
2768
2769	/*
2770	* EMT(0) does the full cleanup after all the other EMTs has been
2771	* thru here and been told to enter the EMSTATE_WAIT_SIPI state.
2772	*
2773	* Because there are per-cpu reset routines and order may/is important,
2774	* the following sequence looks a bit ugly...
2775	*/
2776
2777	/* Reset the VCpu state. */
2778	VMCPU_ASSERT_STATE(pVCpu, VMCPUSTATE_STARTED);
2779
2780	/*
2781	* Soft reset the VM components.
2782	*/
2783	if (pVCpu->idCpu == 0)
2784	{
2785	#ifdef VBOX_WITH_REM
2786	REMR3Reset(pVM);
2787	#endif
2788	PDMR3SoftReset(pVM, fResetFlags);
2789	TRPMR3Reset(pVM);
2790	CPUMR3Reset(pVM); /* This must come after PDM (due to APIC base MSR caching). */
2791	EMR3Reset(pVM);
2792	HMR3Reset(pVM); /* This must come after PATM, CSAM, CPUM, SELM and TRPM. */
2793	NEMR3Reset(pVM);
2794
2795	/*
2796	* Since EMT(0) is the last to go thru here, it will advance the state.
2797	* (Unlike vmR3HardReset we won't be doing any suspending of live
2798	* migration VMs here since memory is unchanged.)
2799	*/
2800	PUVM pUVM = pVM->pUVM;
2801	RTCritSectEnter(&pUVM->vm.s.AtStateCritSect);
2802	enmVMState = pVM->enmVMState;
2803	if (enmVMState == VMSTATE_SOFT_RESETTING)
2804	{
2805	if (pUVM->vm.s.enmPrevVMState == VMSTATE_SUSPENDED)
2806	vmR3SetStateLocked(pVM, pUVM, VMSTATE_SUSPENDED, VMSTATE_SOFT_RESETTING, false /fSetRatherThanClearFF/);
2807	else
2808	vmR3SetStateLocked(pVM, pUVM, VMSTATE_RUNNING, VMSTATE_SOFT_RESETTING, false /fSetRatherThanClearFF/);
2809	}
2810	else
2811	vmR3SetStateLocked(pVM, pUVM, VMSTATE_RUNNING_LS, VMSTATE_SOFT_RESETTING_LS, false /fSetRatherThanClearFF/);
2812	RTCritSectLeave(&pUVM->vm.s.AtStateCritSect);
2813	}
2814
2815	return VINF_EM_RESCHEDULE;
2816	}
2817
2818
2819	/**
2820	* EMT rendezvous worker for VMR3Reset and VMR3ResetFF.
2821	*
2822	* This is called by the emulation threads as a response to the reset request
2823	* issued by VMR3Reset().
2824	*
2825	* @returns VERR_VM_INVALID_VM_STATE, VINF_EM_RESET or VINF_EM_SUSPEND. (This
2826	* is a strict return code, see FNVMMEMTRENDEZVOUS.)
2827	*
2828	* @param pVM The cross context VM structure.
2829	* @param pVCpu The cross context virtual CPU structure of the calling EMT.
2830	* @param pvUser Ignored.
2831	*/
2832	static DECLCALLBACK(VBOXSTRICTRC) vmR3HardReset(PVM pVM, PVMCPU pVCpu, void *pvUser)
2833	{
2834	Assert(!pvUser); NOREF(pvUser);
2835
2836	/*
2837	* The first EMT will try change the state to resetting. If this fails,
2838	* we won't get called for the other EMTs.
2839	*/
2840	if (pVCpu->idCpu == pVM->cCpus - 1)
2841	{
2842	int rc = vmR3TrySetState(pVM, "vmR3HardReset", 3,
2843	VMSTATE_RESETTING, VMSTATE_RUNNING,
2844	VMSTATE_RESETTING, VMSTATE_SUSPENDED,
2845	VMSTATE_RESETTING_LS, VMSTATE_RUNNING_LS);
2846	if (RT_FAILURE(rc))
2847	return rc;
2848	pVM->vm.s.cResets++;
2849	pVM->vm.s.cHardResets++;
2850	}
2851
2852	/*
2853	* Check the state.
2854	*/
2855	VMSTATE enmVMState = VMR3GetState(pVM);
2856	AssertLogRelMsgReturn( enmVMState == VMSTATE_RESETTING
2857	\|\| enmVMState == VMSTATE_RESETTING_LS,
2858	("%s\n", VMR3GetStateName(enmVMState)),
2859	VERR_VM_UNEXPECTED_UNSTABLE_STATE);
2860
2861	/*
2862	* EMT(0) does the full cleanup after all the other EMTs has been
2863	* thru here and been told to enter the EMSTATE_WAIT_SIPI state.
2864	*
2865	* Because there are per-cpu reset routines and order may/is important,
2866	* the following sequence looks a bit ugly...
2867	*/
2868	if (pVCpu->idCpu == 0)
2869	vmR3CheckIntegrity(pVM);
2870
2871	/* Reset the VCpu state. */
2872	VMCPU_ASSERT_STATE(pVCpu, VMCPUSTATE_STARTED);
2873
2874	/* Clear all pending forced actions. */
2875	VMCPU_FF_CLEAR(pVCpu, VMCPU_FF_ALL_MASK & ~VMCPU_FF_REQUEST);
2876
2877	/*
2878	* Reset the VM components.
2879	*/
2880	if (pVCpu->idCpu == 0)
2881	{
2882	#ifdef VBOX_WITH_RAW_MODE
2883	PATMR3Reset(pVM);
2884	CSAMR3Reset(pVM);
2885	#endif
2886	GIMR3Reset(pVM); /* This must come before PDM and TM. */
2887	PDMR3Reset(pVM);
2888	PGMR3Reset(pVM);
2889	SELMR3Reset(pVM);
2890	TRPMR3Reset(pVM);
2891	#ifdef VBOX_WITH_REM
2892	REMR3Reset(pVM);
2893	#endif
2894	IOMR3Reset(pVM);
2895	CPUMR3Reset(pVM); /* This must come after PDM (due to APIC base MSR caching). */
2896	TMR3Reset(pVM);
2897	EMR3Reset(pVM);
2898	HMR3Reset(pVM); /* This must come after PATM, CSAM, CPUM, SELM and TRPM. */
2899	NEMR3Reset(pVM);
2900
2901	/*
2902	* Do memory setup.
2903	*/
2904	PGMR3MemSetup(pVM, true /fAtReset/);
2905	PDMR3MemSetup(pVM, true /fAtReset/);
2906
2907	/*
2908	* Since EMT(0) is the last to go thru here, it will advance the state.
2909	* When a live save is active, we will move on to SuspendingLS but
2910	* leave it for VMR3Reset to do the actual suspending due to deadlock risks.
2911	*/
2912	PUVM pUVM = pVM->pUVM;
2913	RTCritSectEnter(&pUVM->vm.s.AtStateCritSect);
2914	enmVMState = pVM->enmVMState;
2915	if (enmVMState == VMSTATE_RESETTING)
2916	{
2917	if (pUVM->vm.s.enmPrevVMState == VMSTATE_SUSPENDED)
2918	vmR3SetStateLocked(pVM, pUVM, VMSTATE_SUSPENDED, VMSTATE_RESETTING, false /fSetRatherThanClearFF/);
2919	else
2920	vmR3SetStateLocked(pVM, pUVM, VMSTATE_RUNNING, VMSTATE_RESETTING, false /fSetRatherThanClearFF/);
2921	}
2922	else
2923	vmR3SetStateLocked(pVM, pUVM, VMSTATE_SUSPENDING_LS, VMSTATE_RESETTING_LS, false /fSetRatherThanClearFF/);
2924	RTCritSectLeave(&pUVM->vm.s.AtStateCritSect);
2925
2926	vmR3CheckIntegrity(pVM);
2927
2928	/*
2929	* Do the suspend bit as well.
2930	* It only requires some EMT(0) work at present.
2931	*/
2932	if (enmVMState != VMSTATE_RESETTING)
2933	{
2934	vmR3SuspendDoWork(pVM);
2935	vmR3SetState(pVM, VMSTATE_SUSPENDED_LS, VMSTATE_SUSPENDING_LS);
2936	}
2937	}
2938
2939	return enmVMState == VMSTATE_RESETTING
2940	? VINF_EM_RESET
2941	: 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. */
2942	}
2943
2944
2945	/**
2946	* Internal worker for VMR3Reset, VMR3ResetFF, VMR3TripleFault.
2947	*
2948	* @returns VBox status code.
2949	* @param pVM The cross context VM structure.
2950	* @param fHardReset Whether it's a hard reset or not.
2951	* @param fResetFlags The reset flags (PDMVMRESET_F_XXX).
2952	*/
2953	static VBOXSTRICTRC vmR3ResetCommon(PVM pVM, bool fHardReset, uint32_t fResetFlags)
2954	{
2955	LogFlow(("vmR3ResetCommon: fHardReset=%RTbool fResetFlags=%#x\n", fHardReset, fResetFlags));
2956	int rc;
2957	if (fHardReset)
2958	{
2959	/*
2960	* Hard reset.
2961	*/
2962	/* Check whether we're supposed to power off instead of resetting. */
2963	if (pVM->vm.s.fPowerOffInsteadOfReset)
2964	{
2965	PUVM pUVM = pVM->pUVM;
2966	if ( pUVM->pVmm2UserMethods
2967	&& pUVM->pVmm2UserMethods->pfnNotifyResetTurnedIntoPowerOff)
2968	pUVM->pVmm2UserMethods->pfnNotifyResetTurnedIntoPowerOff(pUVM->pVmm2UserMethods, pUVM);
2969	return VMR3PowerOff(pUVM);
2970	}
2971
2972	/* Gather all the EMTs to make sure there are no races before changing
2973	the VM state. */
2974	rc = VMMR3EmtRendezvous(pVM, VMMEMTRENDEZVOUS_FLAGS_TYPE_DESCENDING \| VMMEMTRENDEZVOUS_FLAGS_STOP_ON_ERROR,
2975	vmR3HardReset, NULL);
2976	}
2977	else
2978	{
2979	/*
2980	* Soft reset. Since we only support this with a single CPU active,
2981	* we must be on EMT #0 here.
2982	*/
2983	VM_ASSERT_EMT0(pVM);
2984	rc = VMMR3EmtRendezvous(pVM, VMMEMTRENDEZVOUS_FLAGS_TYPE_DESCENDING \| VMMEMTRENDEZVOUS_FLAGS_STOP_ON_ERROR,
2985	vmR3SoftReset, &fResetFlags);
2986	}
2987
2988	LogFlow(("vmR3ResetCommon: returns %Rrc\n", rc));
2989	return rc;
2990	}
2991
2992
2993
2994	/**
2995	* Reset the current VM.
2996	*
2997	* @returns VBox status code.
2998	* @param pUVM The VM to reset.
2999	*/
3000	VMMR3DECL(int) VMR3Reset(PUVM pUVM)
3001	{
3002	LogFlow(("VMR3Reset:\n"));
3003	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
3004	PVM pVM = pUVM->pVM;
3005	VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
3006
3007	return VBOXSTRICTRC_VAL(vmR3ResetCommon(pVM, true, 0));
3008	}
3009
3010
3011	/**
3012	* Handle the reset force flag or triple fault.
3013	*
3014	* This handles both soft and hard resets (see PDMVMRESET_F_XXX).
3015	*
3016	* @returns VBox status code.
3017	* @param pVM The cross context VM structure.
3018	* @thread EMT
3019	*
3020	* @remarks Caller is expected to clear the VM_FF_RESET force flag.
3021	*/
3022	VMMR3_INT_DECL(VBOXSTRICTRC) VMR3ResetFF(PVM pVM)
3023	{
3024	LogFlow(("VMR3ResetFF:\n"));
3025
3026	/*
3027	* First consult the firmware on whether this is a hard or soft reset.
3028	*/
3029	uint32_t fResetFlags;
3030	bool fHardReset = PDMR3GetResetInfo(pVM, 0 /fOverride/, &fResetFlags);
3031	return vmR3ResetCommon(pVM, fHardReset, fResetFlags);
3032	}
3033
3034
3035	/**
3036	* For handling a CPU reset on triple fault.
3037	*
3038	* According to one mainboard manual, a CPU triple fault causes the 286 CPU to
3039	* send a SHUTDOWN signal to the chipset. The chipset responds by sending a
3040	* RESET signal to the CPU. So, it should be very similar to a soft/warm reset.
3041	*
3042	* @returns VBox status code.
3043	* @param pVM The cross context VM structure.
3044	* @thread EMT
3045	*/
3046	VMMR3_INT_DECL(VBOXSTRICTRC) VMR3ResetTripleFault(PVM pVM)
3047	{
3048	LogFlow(("VMR3ResetTripleFault:\n"));
3049
3050	/*
3051	* First consult the firmware on whether this is a hard or soft reset.
3052	*/
3053	uint32_t fResetFlags;
3054	bool fHardReset = PDMR3GetResetInfo(pVM, PDMVMRESET_F_TRIPLE_FAULT, &fResetFlags);
3055	return vmR3ResetCommon(pVM, fHardReset, fResetFlags);
3056	}
3057
3058
3059	/**
3060	* Gets the user mode VM structure pointer given Pointer to the VM.
3061	*
3062	* @returns Pointer to the user mode VM structure on success. NULL if @a pVM is
3063	* invalid (asserted).
3064	* @param pVM The cross context VM structure.
3065	* @sa VMR3GetVM, VMR3RetainUVM
3066	*/
3067	VMMR3DECL(PUVM) VMR3GetUVM(PVM pVM)
3068	{
3069	VM_ASSERT_VALID_EXT_RETURN(pVM, NULL);
3070	return pVM->pUVM;
3071	}
3072
3073
3074	/**
3075	* Gets the shared VM structure pointer given the pointer to the user mode VM
3076	* structure.
3077	*
3078	* @returns Pointer to the VM.
3079	* NULL if @a pUVM is invalid (asserted) or if no shared VM structure
3080	* is currently associated with it.
3081	* @param pUVM The user mode VM handle.
3082	* @sa VMR3GetUVM
3083	*/
3084	VMMR3DECL(PVM) VMR3GetVM(PUVM pUVM)
3085	{
3086	UVM_ASSERT_VALID_EXT_RETURN(pUVM, NULL);
3087	return pUVM->pVM;
3088	}
3089
3090
3091	/**
3092	* Retain the user mode VM handle.
3093	*
3094	* @returns Reference count.
3095	* UINT32_MAX if @a pUVM is invalid.
3096	*
3097	* @param pUVM The user mode VM handle.
3098	* @sa VMR3ReleaseUVM
3099	*/
3100	VMMR3DECL(uint32_t) VMR3RetainUVM(PUVM pUVM)
3101	{
3102	UVM_ASSERT_VALID_EXT_RETURN(pUVM, UINT32_MAX);
3103	uint32_t cRefs = ASMAtomicIncU32(&pUVM->vm.s.cUvmRefs);
3104	AssertMsg(cRefs > 0 && cRefs < _64K, ("%u\n", cRefs));
3105	return cRefs;
3106	}
3107
3108
3109	/**
3110	* Does the final release of the UVM structure.
3111	*
3112	* @param pUVM The user mode VM handle.
3113	*/
3114	static void vmR3DoReleaseUVM(PUVM pUVM)
3115	{
3116	/*
3117	* Free the UVM.
3118	*/
3119	Assert(!pUVM->pVM);
3120
3121	MMR3HeapFree(pUVM->vm.s.pszName);
3122	pUVM->vm.s.pszName = NULL;
3123
3124	MMR3TermUVM(pUVM);
3125	STAMR3TermUVM(pUVM);
3126
3127	ASMAtomicUoWriteU32(&pUVM->u32Magic, UINT32_MAX);
3128	RTTlsFree(pUVM->vm.s.idxTLS);
3129	RTMemPageFree(pUVM, RT_UOFFSETOF_DYN(UVM, aCpus[pUVM->cCpus]));
3130	}
3131
3132
3133	/**
3134	* Releases a refernece to the mode VM handle.
3135	*
3136	* @returns The new reference count, 0 if destroyed.
3137	* UINT32_MAX if @a pUVM is invalid.
3138	*
3139	* @param pUVM The user mode VM handle.
3140	* @sa VMR3RetainUVM
3141	*/
3142	VMMR3DECL(uint32_t) VMR3ReleaseUVM(PUVM pUVM)
3143	{
3144	if (!pUVM)
3145	return 0;
3146	UVM_ASSERT_VALID_EXT_RETURN(pUVM, UINT32_MAX);
3147	uint32_t cRefs = ASMAtomicDecU32(&pUVM->vm.s.cUvmRefs);
3148	if (!cRefs)
3149	vmR3DoReleaseUVM(pUVM);
3150	else
3151	AssertMsg(cRefs < _64K, ("%u\n", cRefs));
3152	return cRefs;
3153	}
3154
3155
3156	/**
3157	* Gets the VM name.
3158	*
3159	* @returns Pointer to a read-only string containing the name. NULL if called
3160	* too early.
3161	* @param pUVM The user mode VM handle.
3162	*/
3163	VMMR3DECL(const char *) VMR3GetName(PUVM pUVM)
3164	{
3165	UVM_ASSERT_VALID_EXT_RETURN(pUVM, NULL);
3166	return pUVM->vm.s.pszName;
3167	}
3168
3169
3170	/**
3171	* Gets the VM UUID.
3172	*
3173	* @returns pUuid on success, NULL on failure.
3174	* @param pUVM The user mode VM handle.
3175	* @param pUuid Where to store the UUID.
3176	*/
3177	VMMR3DECL(PRTUUID) VMR3GetUuid(PUVM pUVM, PRTUUID pUuid)
3178	{
3179	UVM_ASSERT_VALID_EXT_RETURN(pUVM, NULL);
3180	AssertPtrReturn(pUuid, NULL);
3181
3182	*pUuid = pUVM->vm.s.Uuid;
3183	return pUuid;
3184	}
3185
3186
3187	/**
3188	* Gets the current VM state.
3189	*
3190	* @returns The current VM state.
3191	* @param pVM The cross context VM structure.
3192	* @thread Any
3193	*/
3194	VMMR3DECL(VMSTATE) VMR3GetState(PVM pVM)
3195	{
3196	AssertMsgReturn(RT_VALID_ALIGNED_PTR(pVM, PAGE_SIZE), ("%p\n", pVM), VMSTATE_TERMINATED);
3197	VMSTATE enmVMState = pVM->enmVMState;
3198	return enmVMState >= VMSTATE_CREATING && enmVMState <= VMSTATE_TERMINATED ? enmVMState : VMSTATE_TERMINATED;
3199	}
3200
3201
3202	/**
3203	* Gets the current VM state.
3204	*
3205	* @returns The current VM state.
3206	* @param pUVM The user-mode VM handle.
3207	* @thread Any
3208	*/
3209	VMMR3DECL(VMSTATE) VMR3GetStateU(PUVM pUVM)
3210	{
3211	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VMSTATE_TERMINATED);
3212	if (RT_UNLIKELY(!pUVM->pVM))
3213	return VMSTATE_TERMINATED;
3214	return pUVM->pVM->enmVMState;
3215	}
3216
3217
3218	/**
3219	* Gets the state name string for a VM state.
3220	*
3221	* @returns Pointer to the state name. (readonly)
3222	* @param enmState The state.
3223	*/
3224	VMMR3DECL(const char *) VMR3GetStateName(VMSTATE enmState)
3225	{
3226	switch (enmState)
3227	{
3228	case VMSTATE_CREATING: return "CREATING";
3229	case VMSTATE_CREATED: return "CREATED";
3230	case VMSTATE_LOADING: return "LOADING";
3231	case VMSTATE_POWERING_ON: return "POWERING_ON";
3232	case VMSTATE_RESUMING: return "RESUMING";
3233	case VMSTATE_RUNNING: return "RUNNING";
3234	case VMSTATE_RUNNING_LS: return "RUNNING_LS";
3235	case VMSTATE_RUNNING_FT: return "RUNNING_FT";
3236	case VMSTATE_RESETTING: return "RESETTING";
3237	case VMSTATE_RESETTING_LS: return "RESETTING_LS";
3238	case VMSTATE_SOFT_RESETTING: return "SOFT_RESETTING";
3239	case VMSTATE_SOFT_RESETTING_LS: return "SOFT_RESETTING_LS";
3240	case VMSTATE_SUSPENDED: return "SUSPENDED";
3241	case VMSTATE_SUSPENDED_LS: return "SUSPENDED_LS";
3242	case VMSTATE_SUSPENDED_EXT_LS: return "SUSPENDED_EXT_LS";
3243	case VMSTATE_SUSPENDING: return "SUSPENDING";
3244	case VMSTATE_SUSPENDING_LS: return "SUSPENDING_LS";
3245	case VMSTATE_SUSPENDING_EXT_LS: return "SUSPENDING_EXT_LS";
3246	case VMSTATE_SAVING: return "SAVING";
3247	case VMSTATE_DEBUGGING: return "DEBUGGING";
3248	case VMSTATE_DEBUGGING_LS: return "DEBUGGING_LS";
3249	case VMSTATE_POWERING_OFF: return "POWERING_OFF";
3250	case VMSTATE_POWERING_OFF_LS: return "POWERING_OFF_LS";
3251	case VMSTATE_FATAL_ERROR: return "FATAL_ERROR";
3252	case VMSTATE_FATAL_ERROR_LS: return "FATAL_ERROR_LS";
3253	case VMSTATE_GURU_MEDITATION: return "GURU_MEDITATION";
3254	case VMSTATE_GURU_MEDITATION_LS:return "GURU_MEDITATION_LS";
3255	case VMSTATE_LOAD_FAILURE: return "LOAD_FAILURE";
3256	case VMSTATE_OFF: return "OFF";
3257	case VMSTATE_OFF_LS: return "OFF_LS";
3258	case VMSTATE_DESTROYING: return "DESTROYING";
3259	case VMSTATE_TERMINATED: return "TERMINATED";
3260
3261	default:
3262	AssertMsgFailed(("Unknown state %d\n", enmState));
3263	return "Unknown!\n";
3264	}
3265	}
3266
3267
3268	/**
3269	* Validates the state transition in strict builds.
3270	*
3271	* @returns true if valid, false if not.
3272	*
3273	* @param enmStateOld The old (current) state.
3274	* @param enmStateNew The proposed new state.
3275	*
3276	* @remarks The reference for this is found in doc/vp/VMM.vpp, the VMSTATE
3277	* diagram (under State Machine Diagram).
3278	*/
3279	static bool vmR3ValidateStateTransition(VMSTATE enmStateOld, VMSTATE enmStateNew)
3280	{
3281	#ifndef VBOX_STRICT
3282	RT_NOREF2(enmStateOld, enmStateNew);
3283	#else
3284	switch (enmStateOld)
3285	{
3286	case VMSTATE_CREATING:
3287	AssertMsgReturn(enmStateNew == VMSTATE_CREATED, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3288	break;
3289
3290	case VMSTATE_CREATED:
3291	AssertMsgReturn( enmStateNew == VMSTATE_LOADING
3292	\|\| enmStateNew == VMSTATE_POWERING_ON
3293	\|\| enmStateNew == VMSTATE_POWERING_OFF
3294	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3295	break;
3296
3297	case VMSTATE_LOADING:
3298	AssertMsgReturn( enmStateNew == VMSTATE_SUSPENDED
3299	\|\| enmStateNew == VMSTATE_LOAD_FAILURE
3300	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3301	break;
3302
3303	case VMSTATE_POWERING_ON:
3304	AssertMsgReturn( enmStateNew == VMSTATE_RUNNING
3305	/\|\| enmStateNew == VMSTATE_FATAL_ERROR ?/
3306	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3307	break;
3308
3309	case VMSTATE_RESUMING:
3310	AssertMsgReturn( enmStateNew == VMSTATE_RUNNING
3311	/\|\| enmStateNew == VMSTATE_FATAL_ERROR ?/
3312	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3313	break;
3314
3315	case VMSTATE_RUNNING:
3316	AssertMsgReturn( enmStateNew == VMSTATE_POWERING_OFF
3317	\|\| enmStateNew == VMSTATE_SUSPENDING
3318	\|\| enmStateNew == VMSTATE_RESETTING
3319	\|\| enmStateNew == VMSTATE_SOFT_RESETTING
3320	\|\| enmStateNew == VMSTATE_RUNNING_LS
3321	\|\| enmStateNew == VMSTATE_RUNNING_FT
3322	\|\| enmStateNew == VMSTATE_DEBUGGING
3323	\|\| enmStateNew == VMSTATE_FATAL_ERROR
3324	\|\| enmStateNew == VMSTATE_GURU_MEDITATION
3325	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3326	break;
3327
3328	case VMSTATE_RUNNING_LS:
3329	AssertMsgReturn( enmStateNew == VMSTATE_POWERING_OFF_LS
3330	\|\| enmStateNew == VMSTATE_SUSPENDING_LS
3331	\|\| enmStateNew == VMSTATE_SUSPENDING_EXT_LS
3332	\|\| enmStateNew == VMSTATE_RESETTING_LS
3333	\|\| enmStateNew == VMSTATE_SOFT_RESETTING_LS
3334	\|\| enmStateNew == VMSTATE_RUNNING
3335	\|\| enmStateNew == VMSTATE_DEBUGGING_LS
3336	\|\| enmStateNew == VMSTATE_FATAL_ERROR_LS
3337	\|\| enmStateNew == VMSTATE_GURU_MEDITATION_LS
3338	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3339	break;
3340
3341	case VMSTATE_RUNNING_FT:
3342	AssertMsgReturn( enmStateNew == VMSTATE_POWERING_OFF
3343	\|\| enmStateNew == VMSTATE_FATAL_ERROR
3344	\|\| enmStateNew == VMSTATE_GURU_MEDITATION
3345	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3346	break;
3347
3348	case VMSTATE_RESETTING:
3349	AssertMsgReturn(enmStateNew == VMSTATE_RUNNING, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3350	break;
3351
3352	case VMSTATE_SOFT_RESETTING:
3353	AssertMsgReturn(enmStateNew == VMSTATE_RUNNING, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3354	break;
3355
3356	case VMSTATE_RESETTING_LS:
3357	AssertMsgReturn( enmStateNew == VMSTATE_SUSPENDING_LS
3358	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3359	break;
3360
3361	case VMSTATE_SOFT_RESETTING_LS:
3362	AssertMsgReturn( enmStateNew == VMSTATE_RUNNING_LS
3363	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3364	break;
3365
3366	case VMSTATE_SUSPENDING:
3367	AssertMsgReturn(enmStateNew == VMSTATE_SUSPENDED, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3368	break;
3369
3370	case VMSTATE_SUSPENDING_LS:
3371	AssertMsgReturn( enmStateNew == VMSTATE_SUSPENDING
3372	\|\| enmStateNew == VMSTATE_SUSPENDED_LS
3373	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3374	break;
3375
3376	case VMSTATE_SUSPENDING_EXT_LS:
3377	AssertMsgReturn( enmStateNew == VMSTATE_SUSPENDING
3378	\|\| enmStateNew == VMSTATE_SUSPENDED_EXT_LS
3379	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3380	break;
3381
3382	case VMSTATE_SUSPENDED:
3383	AssertMsgReturn( enmStateNew == VMSTATE_POWERING_OFF
3384	\|\| enmStateNew == VMSTATE_SAVING
3385	\|\| enmStateNew == VMSTATE_RESETTING
3386	\|\| enmStateNew == VMSTATE_SOFT_RESETTING
3387	\|\| enmStateNew == VMSTATE_RESUMING
3388	\|\| enmStateNew == VMSTATE_LOADING
3389	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3390	break;
3391
3392	case VMSTATE_SUSPENDED_LS:
3393	AssertMsgReturn( enmStateNew == VMSTATE_SUSPENDED
3394	\|\| enmStateNew == VMSTATE_SAVING
3395	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3396	break;
3397
3398	case VMSTATE_SUSPENDED_EXT_LS:
3399	AssertMsgReturn( enmStateNew == VMSTATE_SUSPENDED
3400	\|\| enmStateNew == VMSTATE_SAVING
3401	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3402	break;
3403
3404	case VMSTATE_SAVING:
3405	AssertMsgReturn(enmStateNew == VMSTATE_SUSPENDED, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3406	break;
3407
3408	case VMSTATE_DEBUGGING:
3409	AssertMsgReturn( enmStateNew == VMSTATE_RUNNING
3410	\|\| enmStateNew == VMSTATE_POWERING_OFF
3411	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3412	break;
3413
3414	case VMSTATE_DEBUGGING_LS:
3415	AssertMsgReturn( enmStateNew == VMSTATE_DEBUGGING
3416	\|\| enmStateNew == VMSTATE_RUNNING_LS
3417	\|\| enmStateNew == VMSTATE_POWERING_OFF_LS
3418	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3419	break;
3420
3421	case VMSTATE_POWERING_OFF:
3422	AssertMsgReturn(enmStateNew == VMSTATE_OFF, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3423	break;
3424
3425	case VMSTATE_POWERING_OFF_LS:
3426	AssertMsgReturn( enmStateNew == VMSTATE_POWERING_OFF
3427	\|\| enmStateNew == VMSTATE_OFF_LS
3428	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3429	break;
3430
3431	case VMSTATE_OFF:
3432	AssertMsgReturn(enmStateNew == VMSTATE_DESTROYING, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3433	break;
3434
3435	case VMSTATE_OFF_LS:
3436	AssertMsgReturn(enmStateNew == VMSTATE_OFF, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3437	break;
3438
3439	case VMSTATE_FATAL_ERROR:
3440	AssertMsgReturn(enmStateNew == VMSTATE_POWERING_OFF, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3441	break;
3442
3443	case VMSTATE_FATAL_ERROR_LS:
3444	AssertMsgReturn( enmStateNew == VMSTATE_FATAL_ERROR
3445	\|\| enmStateNew == VMSTATE_POWERING_OFF_LS
3446	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3447	break;
3448
3449	case VMSTATE_GURU_MEDITATION:
3450	AssertMsgReturn( enmStateNew == VMSTATE_DEBUGGING
3451	\|\| enmStateNew == VMSTATE_POWERING_OFF
3452	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3453	break;
3454
3455	case VMSTATE_GURU_MEDITATION_LS:
3456	AssertMsgReturn( enmStateNew == VMSTATE_GURU_MEDITATION
3457	\|\| enmStateNew == VMSTATE_DEBUGGING_LS
3458	\|\| enmStateNew == VMSTATE_POWERING_OFF_LS
3459	, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3460	break;
3461
3462	case VMSTATE_LOAD_FAILURE:
3463	AssertMsgReturn(enmStateNew == VMSTATE_POWERING_OFF, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3464	break;
3465
3466	case VMSTATE_DESTROYING:
3467	AssertMsgReturn(enmStateNew == VMSTATE_TERMINATED, ("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3468	break;
3469
3470	case VMSTATE_TERMINATED:
3471	default:
3472	AssertMsgFailedReturn(("%s -> %s\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)), false);
3473	break;
3474	}
3475	#endif /* VBOX_STRICT */
3476	return true;
3477	}
3478
3479
3480	/**
3481	* Does the state change callouts.
3482	*
3483	* The caller owns the AtStateCritSect.
3484	*
3485	* @param pVM The cross context VM structure.
3486	* @param pUVM The UVM handle.
3487	* @param enmStateNew The New state.
3488	* @param enmStateOld The old state.
3489	*/
3490	static void vmR3DoAtState(PVM pVM, PUVM pUVM, VMSTATE enmStateNew, VMSTATE enmStateOld)
3491	{
3492	LogRel(("Changing the VM state from '%s' to '%s'\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)));
3493
3494	for (PVMATSTATE pCur = pUVM->vm.s.pAtState; pCur; pCur = pCur->pNext)
3495	{
3496	pCur->pfnAtState(pUVM, enmStateNew, enmStateOld, pCur->pvUser);
3497	if ( enmStateNew != VMSTATE_DESTROYING
3498	&& pVM->enmVMState == VMSTATE_DESTROYING)
3499	break;
3500	AssertMsg(pVM->enmVMState == enmStateNew,
3501	("You are not allowed to change the state while in the change callback, except "
3502	"from destroying the VM. There are restrictions in the way the state changes "
3503	"are propagated up to the EM execution loop and it makes the program flow very "
3504	"difficult to follow. (%s, expected %s, old %s)\n",
3505	VMR3GetStateName(pVM->enmVMState), VMR3GetStateName(enmStateNew),
3506	VMR3GetStateName(enmStateOld)));
3507	}
3508	}
3509
3510
3511	/**
3512	* Sets the current VM state, with the AtStatCritSect already entered.
3513	*
3514	* @param pVM The cross context VM structure.
3515	* @param pUVM The UVM handle.
3516	* @param enmStateNew The new state.
3517	* @param enmStateOld The old state.
3518	* @param fSetRatherThanClearFF The usual behavior is to clear the
3519	* VM_FF_CHECK_VM_STATE force flag, but for
3520	* some transitions (-> guru) we need to kick
3521	* the other EMTs to stop what they're doing.
3522	*/
3523	static void vmR3SetStateLocked(PVM pVM, PUVM pUVM, VMSTATE enmStateNew, VMSTATE enmStateOld, bool fSetRatherThanClearFF)
3524	{
3525	vmR3ValidateStateTransition(enmStateOld, enmStateNew);
3526
3527	AssertMsg(pVM->enmVMState == enmStateOld,
3528	("%s != %s\n", VMR3GetStateName(pVM->enmVMState), VMR3GetStateName(enmStateOld)));
3529
3530	pUVM->vm.s.enmPrevVMState = enmStateOld;
3531	pVM->enmVMState = enmStateNew;
3532
3533	if (!fSetRatherThanClearFF)
3534	VM_FF_CLEAR(pVM, VM_FF_CHECK_VM_STATE);
3535	else if (pVM->cCpus > 0)
3536	VM_FF_SET(pVM, VM_FF_CHECK_VM_STATE);
3537
3538	vmR3DoAtState(pVM, pUVM, enmStateNew, enmStateOld);
3539	}
3540
3541
3542	/**
3543	* Sets the current VM state.
3544	*
3545	* @param pVM The cross context VM structure.
3546	* @param enmStateNew The new state.
3547	* @param enmStateOld The old state (for asserting only).
3548	*/
3549	static void vmR3SetState(PVM pVM, VMSTATE enmStateNew, VMSTATE enmStateOld)
3550	{
3551	PUVM pUVM = pVM->pUVM;
3552	RTCritSectEnter(&pUVM->vm.s.AtStateCritSect);
3553
3554	RT_NOREF_PV(enmStateOld);
3555	AssertMsg(pVM->enmVMState == enmStateOld,
3556	("%s != %s\n", VMR3GetStateName(pVM->enmVMState), VMR3GetStateName(enmStateOld)));
3557	vmR3SetStateLocked(pVM, pUVM, enmStateNew, pVM->enmVMState, false /fSetRatherThanClearFF/);
3558
3559	RTCritSectLeave(&pUVM->vm.s.AtStateCritSect);
3560	}
3561
3562
3563	/**
3564	* Tries to perform a state transition.
3565	*
3566	* @returns The 1-based ordinal of the succeeding transition.
3567	* VERR_VM_INVALID_VM_STATE and Assert+LogRel on failure.
3568	*
3569	* @param pVM The cross context VM structure.
3570	* @param pszWho Who is trying to change it.
3571	* @param cTransitions The number of transitions in the ellipsis.
3572	* @param ... Transition pairs; new, old.
3573	*/
3574	static int vmR3TrySetState(PVM pVM, const char *pszWho, unsigned cTransitions, ...)
3575	{
3576	va_list va;
3577	VMSTATE enmStateNew = VMSTATE_CREATED;
3578	VMSTATE enmStateOld = VMSTATE_CREATED;
3579
3580	#ifdef VBOX_STRICT
3581	/*
3582	* Validate the input first.
3583	*/
3584	va_start(va, cTransitions);
3585	for (unsigned i = 0; i < cTransitions; i++)
3586	{
3587	enmStateNew = (VMSTATE)va_arg(va, /VMSTATE/int);
3588	enmStateOld = (VMSTATE)va_arg(va, /VMSTATE/int);
3589	vmR3ValidateStateTransition(enmStateOld, enmStateNew);
3590	}
3591	va_end(va);
3592	#endif
3593
3594	/*
3595	* Grab the lock and see if any of the proposed transitions works out.
3596	*/
3597	va_start(va, cTransitions);
3598	int rc = VERR_VM_INVALID_VM_STATE;
3599	PUVM pUVM = pVM->pUVM;
3600	RTCritSectEnter(&pUVM->vm.s.AtStateCritSect);
3601
3602	VMSTATE enmStateCur = pVM->enmVMState;
3603
3604	for (unsigned i = 0; i < cTransitions; i++)
3605	{
3606	enmStateNew = (VMSTATE)va_arg(va, /VMSTATE/int);
3607	enmStateOld = (VMSTATE)va_arg(va, /VMSTATE/int);
3608	if (enmStateCur == enmStateOld)
3609	{
3610	vmR3SetStateLocked(pVM, pUVM, enmStateNew, enmStateOld, false /fSetRatherThanClearFF/);
3611	rc = i + 1;
3612	break;
3613	}
3614	}
3615
3616	if (RT_FAILURE(rc))
3617	{
3618	/*
3619	* Complain about it.
3620	*/
3621	if (cTransitions == 1)
3622	{
3623	LogRel(("%s: %s -> %s failed, because the VM state is actually %s\n",
3624	pszWho, VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew), VMR3GetStateName(enmStateCur)));
3625	VMSetError(pVM, VERR_VM_INVALID_VM_STATE, RT_SRC_POS,
3626	N_("%s failed because the VM state is %s instead of %s"),
3627	pszWho, VMR3GetStateName(enmStateCur), VMR3GetStateName(enmStateOld));
3628	AssertMsgFailed(("%s: %s -> %s failed, because the VM state is actually %s\n",
3629	pszWho, VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew), VMR3GetStateName(enmStateCur)));
3630	}
3631	else
3632	{
3633	va_end(va);
3634	va_start(va, cTransitions);
3635	LogRel(("%s:\n", pszWho));
3636	for (unsigned i = 0; i < cTransitions; i++)
3637	{
3638	enmStateNew = (VMSTATE)va_arg(va, /VMSTATE/int);
3639	enmStateOld = (VMSTATE)va_arg(va, /VMSTATE/int);
3640	LogRel(("%s%s -> %s",
3641	i ? ", " : " ", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew)));
3642	}
3643	LogRel((" failed, because the VM state is actually %s\n", VMR3GetStateName(enmStateCur)));
3644	VMSetError(pVM, VERR_VM_INVALID_VM_STATE, RT_SRC_POS,
3645	N_("%s failed because the current VM state, %s, was not found in the state transition table (old state %s)"),
3646	pszWho, VMR3GetStateName(enmStateCur), VMR3GetStateName(enmStateOld));
3647	AssertMsgFailed(("%s - state=%s, see release log for full details. Check the cTransitions passed us.\n",
3648	pszWho, VMR3GetStateName(enmStateCur)));
3649	}
3650	}
3651
3652	RTCritSectLeave(&pUVM->vm.s.AtStateCritSect);
3653	va_end(va);
3654	Assert(rc > 0 \|\| rc < 0);
3655	return rc;
3656	}
3657
3658
3659	/**
3660	* Interface used by EM to signal that it's entering the guru meditation state.
3661	*
3662	* This will notifying other threads.
3663	*
3664	* @returns true if the state changed to Guru, false if no state change.
3665	* @param pVM The cross context VM structure.
3666	*/
3667	VMMR3_INT_DECL(bool) VMR3SetGuruMeditation(PVM pVM)
3668	{
3669	PUVM pUVM = pVM->pUVM;
3670	RTCritSectEnter(&pUVM->vm.s.AtStateCritSect);
3671
3672	VMSTATE enmStateCur = pVM->enmVMState;
3673	bool fRc = true;
3674	if (enmStateCur == VMSTATE_RUNNING)
3675	vmR3SetStateLocked(pVM, pUVM, VMSTATE_GURU_MEDITATION, VMSTATE_RUNNING, true /fSetRatherThanClearFF/);
3676	else if (enmStateCur == VMSTATE_RUNNING_LS)
3677	{
3678	vmR3SetStateLocked(pVM, pUVM, VMSTATE_GURU_MEDITATION_LS, VMSTATE_RUNNING_LS, true /fSetRatherThanClearFF/);
3679	SSMR3Cancel(pUVM);
3680	}
3681	else
3682	fRc = false;
3683
3684	RTCritSectLeave(&pUVM->vm.s.AtStateCritSect);
3685	return fRc;
3686	}
3687
3688
3689	/**
3690	* Called by vmR3EmulationThreadWithId just before the VM structure is freed.
3691	*
3692	* @param pVM The cross context VM structure.
3693	*/
3694	void vmR3SetTerminated(PVM pVM)
3695	{
3696	vmR3SetState(pVM, VMSTATE_TERMINATED, VMSTATE_DESTROYING);
3697	}
3698
3699
3700	/**
3701	* Checks if the VM was teleported and hasn't been fully resumed yet.
3702	*
3703	* This applies to both sides of the teleportation since we may leave a working
3704	* clone behind and the user is allowed to resume this...
3705	*
3706	* @returns true / false.
3707	* @param pVM The cross context VM structure.
3708	* @thread Any thread.
3709	*/
3710	VMMR3_INT_DECL(bool) VMR3TeleportedAndNotFullyResumedYet(PVM pVM)
3711	{
3712	VM_ASSERT_VALID_EXT_RETURN(pVM, false);
3713	return pVM->vm.s.fTeleportedAndNotFullyResumedYet;
3714	}
3715
3716
3717	/**
3718	* Registers a VM state change callback.
3719	*
3720	* You are not allowed to call any function which changes the VM state from a
3721	* state callback.
3722	*
3723	* @returns VBox status code.
3724	* @param pUVM The VM handle.
3725	* @param pfnAtState Pointer to callback.
3726	* @param pvUser User argument.
3727	* @thread Any.
3728	*/
3729	VMMR3DECL(int) VMR3AtStateRegister(PUVM pUVM, PFNVMATSTATE pfnAtState, void *pvUser)
3730	{
3731	LogFlow(("VMR3AtStateRegister: pfnAtState=%p pvUser=%p\n", pfnAtState, pvUser));
3732
3733	/*
3734	* Validate input.
3735	*/
3736	AssertPtrReturn(pfnAtState, VERR_INVALID_PARAMETER);
3737	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
3738
3739	/*
3740	* Allocate a new record.
3741	*/
3742	PVMATSTATE pNew = (PVMATSTATE)MMR3HeapAllocU(pUVM, MM_TAG_VM, sizeof(*pNew));
3743	if (!pNew)
3744	return VERR_NO_MEMORY;
3745
3746	/* fill */
3747	pNew->pfnAtState = pfnAtState;
3748	pNew->pvUser = pvUser;
3749
3750	/* insert */
3751	RTCritSectEnter(&pUVM->vm.s.AtStateCritSect);
3752	pNew->pNext = *pUVM->vm.s.ppAtStateNext;
3753	*pUVM->vm.s.ppAtStateNext = pNew;
3754	pUVM->vm.s.ppAtStateNext = &pNew->pNext;
3755	RTCritSectLeave(&pUVM->vm.s.AtStateCritSect);
3756
3757	return VINF_SUCCESS;
3758	}
3759
3760
3761	/**
3762	* Deregisters a VM state change callback.
3763	*
3764	* @returns VBox status code.
3765	* @param pUVM The VM handle.
3766	* @param pfnAtState Pointer to callback.
3767	* @param pvUser User argument.
3768	* @thread Any.
3769	*/
3770	VMMR3DECL(int) VMR3AtStateDeregister(PUVM pUVM, PFNVMATSTATE pfnAtState, void *pvUser)
3771	{
3772	LogFlow(("VMR3AtStateDeregister: pfnAtState=%p pvUser=%p\n", pfnAtState, pvUser));
3773
3774	/*
3775	* Validate input.
3776	*/
3777	AssertPtrReturn(pfnAtState, VERR_INVALID_PARAMETER);
3778	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
3779
3780	RTCritSectEnter(&pUVM->vm.s.AtStateCritSect);
3781
3782	/*
3783	* Search the list for the entry.
3784	*/
3785	PVMATSTATE pPrev = NULL;
3786	PVMATSTATE pCur = pUVM->vm.s.pAtState;
3787	while ( pCur
3788	&& ( pCur->pfnAtState != pfnAtState
3789	\|\| pCur->pvUser != pvUser))
3790	{
3791	pPrev = pCur;
3792	pCur = pCur->pNext;
3793	}
3794	if (!pCur)
3795	{
3796	AssertMsgFailed(("pfnAtState=%p was not found\n", pfnAtState));
3797	RTCritSectLeave(&pUVM->vm.s.AtStateCritSect);
3798	return VERR_FILE_NOT_FOUND;
3799	}
3800
3801	/*
3802	* Unlink it.
3803	*/
3804	if (pPrev)
3805	{
3806	pPrev->pNext = pCur->pNext;
3807	if (!pCur->pNext)
3808	pUVM->vm.s.ppAtStateNext = &pPrev->pNext;
3809	}
3810	else
3811	{
3812	pUVM->vm.s.pAtState = pCur->pNext;
3813	if (!pCur->pNext)
3814	pUVM->vm.s.ppAtStateNext = &pUVM->vm.s.pAtState;
3815	}
3816
3817	RTCritSectLeave(&pUVM->vm.s.AtStateCritSect);
3818
3819	/*
3820	* Free it.
3821	*/
3822	pCur->pfnAtState = NULL;
3823	pCur->pNext = NULL;
3824	MMR3HeapFree(pCur);
3825
3826	return VINF_SUCCESS;
3827	}
3828
3829
3830	/**
3831	* Registers a VM error callback.
3832	*
3833	* @returns VBox status code.
3834	* @param pUVM The VM handle.
3835	* @param pfnAtError Pointer to callback.
3836	* @param pvUser User argument.
3837	* @thread Any.
3838	*/
3839	VMMR3DECL(int) VMR3AtErrorRegister(PUVM pUVM, PFNVMATERROR pfnAtError, void *pvUser)
3840	{
3841	LogFlow(("VMR3AtErrorRegister: pfnAtError=%p pvUser=%p\n", pfnAtError, pvUser));
3842
3843	/*
3844	* Validate input.
3845	*/
3846	AssertPtrReturn(pfnAtError, VERR_INVALID_PARAMETER);
3847	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
3848
3849	/*
3850	* Allocate a new record.
3851	*/
3852	PVMATERROR pNew = (PVMATERROR)MMR3HeapAllocU(pUVM, MM_TAG_VM, sizeof(*pNew));
3853	if (!pNew)
3854	return VERR_NO_MEMORY;
3855
3856	/* fill */
3857	pNew->pfnAtError = pfnAtError;
3858	pNew->pvUser = pvUser;
3859
3860	/* insert */
3861	RTCritSectEnter(&pUVM->vm.s.AtErrorCritSect);
3862	pNew->pNext = *pUVM->vm.s.ppAtErrorNext;
3863	*pUVM->vm.s.ppAtErrorNext = pNew;
3864	pUVM->vm.s.ppAtErrorNext = &pNew->pNext;
3865	RTCritSectLeave(&pUVM->vm.s.AtErrorCritSect);
3866
3867	return VINF_SUCCESS;
3868	}
3869
3870
3871	/**
3872	* Deregisters a VM error callback.
3873	*
3874	* @returns VBox status code.
3875	* @param pUVM The VM handle.
3876	* @param pfnAtError Pointer to callback.
3877	* @param pvUser User argument.
3878	* @thread Any.
3879	*/
3880	VMMR3DECL(int) VMR3AtErrorDeregister(PUVM pUVM, PFNVMATERROR pfnAtError, void *pvUser)
3881	{
3882	LogFlow(("VMR3AtErrorDeregister: pfnAtError=%p pvUser=%p\n", pfnAtError, pvUser));
3883
3884	/*
3885	* Validate input.
3886	*/
3887	AssertPtrReturn(pfnAtError, VERR_INVALID_PARAMETER);
3888	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
3889
3890	RTCritSectEnter(&pUVM->vm.s.AtErrorCritSect);
3891
3892	/*
3893	* Search the list for the entry.
3894	*/
3895	PVMATERROR pPrev = NULL;
3896	PVMATERROR pCur = pUVM->vm.s.pAtError;
3897	while ( pCur
3898	&& ( pCur->pfnAtError != pfnAtError
3899	\|\| pCur->pvUser != pvUser))
3900	{
3901	pPrev = pCur;
3902	pCur = pCur->pNext;
3903	}
3904	if (!pCur)
3905	{
3906	AssertMsgFailed(("pfnAtError=%p was not found\n", pfnAtError));
3907	RTCritSectLeave(&pUVM->vm.s.AtErrorCritSect);
3908	return VERR_FILE_NOT_FOUND;
3909	}
3910
3911	/*
3912	* Unlink it.
3913	*/
3914	if (pPrev)
3915	{
3916	pPrev->pNext = pCur->pNext;
3917	if (!pCur->pNext)
3918	pUVM->vm.s.ppAtErrorNext = &pPrev->pNext;
3919	}
3920	else
3921	{
3922	pUVM->vm.s.pAtError = pCur->pNext;
3923	if (!pCur->pNext)
3924	pUVM->vm.s.ppAtErrorNext = &pUVM->vm.s.pAtError;
3925	}
3926
3927	RTCritSectLeave(&pUVM->vm.s.AtErrorCritSect);
3928
3929	/*
3930	* Free it.
3931	*/
3932	pCur->pfnAtError = NULL;
3933	pCur->pNext = NULL;
3934	MMR3HeapFree(pCur);
3935
3936	return VINF_SUCCESS;
3937	}
3938
3939
3940	/**
3941	* Ellipsis to va_list wrapper for calling pfnAtError.
3942	*/
3943	static void vmR3SetErrorWorkerDoCall(PVM pVM, PVMATERROR pCur, int rc, RT_SRC_POS_DECL, const char *pszFormat, ...)
3944	{
3945	va_list va;
3946	va_start(va, pszFormat);
3947	pCur->pfnAtError(pVM->pUVM, pCur->pvUser, rc, RT_SRC_POS_ARGS, pszFormat, va);
3948	va_end(va);
3949	}
3950
3951
3952	/**
3953	* This is a worker function for GC and Ring-0 calls to VMSetError and VMSetErrorV.
3954	* The message is found in VMINT.
3955	*
3956	* @param pVM The cross context VM structure.
3957	* @thread EMT.
3958	*/
3959	VMMR3_INT_DECL(void) VMR3SetErrorWorker(PVM pVM)
3960	{
3961	VM_ASSERT_EMT(pVM);
3962	AssertReleaseMsgFailed(("And we have a winner! You get to implement Ring-0 and GC VMSetErrorV! Congrats!\n"));
3963
3964	/*
3965	* Unpack the error (if we managed to format one).
3966	*/
3967	PVMERROR pErr = pVM->vm.s.pErrorR3;
3968	const char *pszFile = NULL;
3969	const char *pszFunction = NULL;
3970	uint32_t iLine = 0;
3971	const char *pszMessage;
3972	int32_t rc = VERR_MM_HYPER_NO_MEMORY;
3973	if (pErr)
3974	{
3975	AssertCompile(sizeof(const char) == sizeof(uint8_t));
3976	if (pErr->offFile)
3977	pszFile = (const char *)pErr + pErr->offFile;
3978	iLine = pErr->iLine;
3979	if (pErr->offFunction)
3980	pszFunction = (const char *)pErr + pErr->offFunction;
3981	if (pErr->offMessage)
3982	pszMessage = (const char *)pErr + pErr->offMessage;
3983	else
3984	pszMessage = "No message!";
3985	}
3986	else
3987	pszMessage = "No message! (Failed to allocate memory to put the error message in!)";
3988
3989	/*
3990	* Call the at error callbacks.
3991	*/
3992	PUVM pUVM = pVM->pUVM;
3993	RTCritSectEnter(&pUVM->vm.s.AtErrorCritSect);
3994	ASMAtomicIncU32(&pUVM->vm.s.cRuntimeErrors);
3995	for (PVMATERROR pCur = pUVM->vm.s.pAtError; pCur; pCur = pCur->pNext)
3996	vmR3SetErrorWorkerDoCall(pVM, pCur, rc, RT_SRC_POS_ARGS, "%s", pszMessage);
3997	RTCritSectLeave(&pUVM->vm.s.AtErrorCritSect);
3998	}
3999
4000
4001	/**
4002	* Gets the number of errors raised via VMSetError.
4003	*
4004	* This can be used avoid double error messages.
4005	*
4006	* @returns The error count.
4007	* @param pUVM The VM handle.
4008	*/
4009	VMMR3_INT_DECL(uint32_t) VMR3GetErrorCount(PUVM pUVM)
4010	{
4011	AssertPtrReturn(pUVM, 0);
4012	AssertReturn(pUVM->u32Magic == UVM_MAGIC, 0);
4013	return pUVM->vm.s.cErrors;
4014	}
4015
4016
4017	/**
4018	* Creation time wrapper for vmR3SetErrorUV.
4019	*
4020	* @returns rc.
4021	* @param pUVM Pointer to the user mode VM structure.
4022	* @param rc The VBox status code.
4023	* @param SRC_POS The source position of this error.
4024	* @param pszFormat Format string.
4025	* @param ... The arguments.
4026	* @thread Any thread.
4027	*/
4028	static int vmR3SetErrorU(PUVM pUVM, int rc, RT_SRC_POS_DECL, const char *pszFormat, ...)
4029	{
4030	va_list va;
4031	va_start(va, pszFormat);
4032	vmR3SetErrorUV(pUVM, rc, pszFile, iLine, pszFunction, pszFormat, &va);
4033	va_end(va);
4034	return rc;
4035	}
4036
4037
4038	/**
4039	* Worker which calls everyone listening to the VM error messages.
4040	*
4041	* @param pUVM Pointer to the user mode VM structure.
4042	* @param rc The VBox status code.
4043	* @param SRC_POS The source position of this error.
4044	* @param pszFormat Format string.
4045	* @param pArgs Pointer to the format arguments.
4046	* @thread EMT
4047	*/
4048	DECLCALLBACK(void) vmR3SetErrorUV(PUVM pUVM, int rc, RT_SRC_POS_DECL, const char pszFormat, va_list pArgs)
4049	{
4050	/*
4051	* Log the error.
4052	*/
4053	va_list va3;
4054	va_copy(va3, *pArgs);
4055	RTLogRelPrintf("VMSetError: %s(%d) %s; rc=%Rrc\n"
4056	"VMSetError: %N\n",
4057	pszFile, iLine, pszFunction, rc,
4058	pszFormat, &va3);
4059	va_end(va3);
4060
4061	#ifdef LOG_ENABLED
4062	va_copy(va3, *pArgs);
4063	RTLogPrintf("VMSetError: %s(%d) %s; rc=%Rrc\n"
4064	"%N\n",
4065	pszFile, iLine, pszFunction, rc,
4066	pszFormat, &va3);
4067	va_end(va3);
4068	#endif
4069
4070	/*
4071	* Make a copy of the message.
4072	*/
4073	if (pUVM->pVM)
4074	vmSetErrorCopy(pUVM->pVM, rc, RT_SRC_POS_ARGS, pszFormat, *pArgs);
4075
4076	/*
4077	* Call the at error callbacks.
4078	*/
4079	bool fCalledSomeone = false;
4080	RTCritSectEnter(&pUVM->vm.s.AtErrorCritSect);
4081	ASMAtomicIncU32(&pUVM->vm.s.cErrors);
4082	for (PVMATERROR pCur = pUVM->vm.s.pAtError; pCur; pCur = pCur->pNext)
4083	{
4084	va_list va2;
4085	va_copy(va2, *pArgs);
4086	pCur->pfnAtError(pUVM, pCur->pvUser, rc, RT_SRC_POS_ARGS, pszFormat, va2);
4087	va_end(va2);
4088	fCalledSomeone = true;
4089	}
4090	RTCritSectLeave(&pUVM->vm.s.AtErrorCritSect);
4091	}
4092
4093
4094	/**
4095	* Sets the error message.
4096	*
4097	* @returns rc. Meaning you can do:
4098	* @code
4099	* return VM_SET_ERROR_U(pUVM, VERR_OF_YOUR_CHOICE, "descriptive message");
4100	* @endcode
4101	* @param pUVM The user mode VM handle.
4102	* @param rc VBox status code.
4103	* @param SRC_POS Use RT_SRC_POS.
4104	* @param pszFormat Error message format string.
4105	* @param ... Error message arguments.
4106	* @thread Any
4107	*/
4108	VMMR3DECL(int) VMR3SetError(PUVM pUVM, int rc, RT_SRC_POS_DECL, const char *pszFormat, ...)
4109	{
4110	va_list va;
4111	va_start(va, pszFormat);
4112	int rcRet = VMR3SetErrorV(pUVM, rc, pszFile, iLine, pszFunction, pszFormat, va);
4113	va_end(va);
4114	return rcRet;
4115	}
4116
4117
4118	/**
4119	* Sets the error message.
4120	*
4121	* @returns rc. Meaning you can do:
4122	* @code
4123	* return VM_SET_ERROR_U(pUVM, VERR_OF_YOUR_CHOICE, "descriptive message");
4124	* @endcode
4125	* @param pUVM The user mode VM handle.
4126	* @param rc VBox status code.
4127	* @param SRC_POS Use RT_SRC_POS.
4128	* @param pszFormat Error message format string.
4129	* @param va Error message arguments.
4130	* @thread Any
4131	*/
4132	VMMR3DECL(int) VMR3SetErrorV(PUVM pUVM, int rc, RT_SRC_POS_DECL, const char *pszFormat, va_list va)
4133	{
4134	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
4135
4136	/* Take shortcut when called on EMT, skipping VM handle requirement + validation. */
4137	if (VMR3GetVMCPUThread(pUVM) != NIL_RTTHREAD)
4138	{
4139	va_list vaCopy;
4140	va_copy(vaCopy, va);
4141	vmR3SetErrorUV(pUVM, rc, RT_SRC_POS_ARGS, pszFormat, &vaCopy);
4142	va_end(vaCopy);
4143	return rc;
4144	}
4145
4146	VM_ASSERT_VALID_EXT_RETURN(pUVM->pVM, VERR_INVALID_VM_HANDLE);
4147	return VMSetErrorV(pUVM->pVM, rc, pszFile, iLine, pszFunction, pszFormat, va);
4148	}
4149
4150
4151
4152	/**
4153	* Registers a VM runtime error callback.
4154	*
4155	* @returns VBox status code.
4156	* @param pUVM The user mode VM structure.
4157	* @param pfnAtRuntimeError Pointer to callback.
4158	* @param pvUser User argument.
4159	* @thread Any.
4160	*/
4161	VMMR3DECL(int) VMR3AtRuntimeErrorRegister(PUVM pUVM, PFNVMATRUNTIMEERROR pfnAtRuntimeError, void *pvUser)
4162	{
4163	LogFlow(("VMR3AtRuntimeErrorRegister: pfnAtRuntimeError=%p pvUser=%p\n", pfnAtRuntimeError, pvUser));
4164
4165	/*
4166	* Validate input.
4167	*/
4168	AssertPtrReturn(pfnAtRuntimeError, VERR_INVALID_PARAMETER);
4169	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
4170
4171	/*
4172	* Allocate a new record.
4173	*/
4174	PVMATRUNTIMEERROR pNew = (PVMATRUNTIMEERROR)MMR3HeapAllocU(pUVM, MM_TAG_VM, sizeof(*pNew));
4175	if (!pNew)
4176	return VERR_NO_MEMORY;
4177
4178	/* fill */
4179	pNew->pfnAtRuntimeError = pfnAtRuntimeError;
4180	pNew->pvUser = pvUser;
4181
4182	/* insert */
4183	RTCritSectEnter(&pUVM->vm.s.AtErrorCritSect);
4184	pNew->pNext = *pUVM->vm.s.ppAtRuntimeErrorNext;
4185	*pUVM->vm.s.ppAtRuntimeErrorNext = pNew;
4186	pUVM->vm.s.ppAtRuntimeErrorNext = &pNew->pNext;
4187	RTCritSectLeave(&pUVM->vm.s.AtErrorCritSect);
4188
4189	return VINF_SUCCESS;
4190	}
4191
4192
4193	/**
4194	* Deregisters a VM runtime error callback.
4195	*
4196	* @returns VBox status code.
4197	* @param pUVM The user mode VM handle.
4198	* @param pfnAtRuntimeError Pointer to callback.
4199	* @param pvUser User argument.
4200	* @thread Any.
4201	*/
4202	VMMR3DECL(int) VMR3AtRuntimeErrorDeregister(PUVM pUVM, PFNVMATRUNTIMEERROR pfnAtRuntimeError, void *pvUser)
4203	{
4204	LogFlow(("VMR3AtRuntimeErrorDeregister: pfnAtRuntimeError=%p pvUser=%p\n", pfnAtRuntimeError, pvUser));
4205
4206	/*
4207	* Validate input.
4208	*/
4209	AssertPtrReturn(pfnAtRuntimeError, VERR_INVALID_PARAMETER);
4210	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
4211
4212	RTCritSectEnter(&pUVM->vm.s.AtErrorCritSect);
4213
4214	/*
4215	* Search the list for the entry.
4216	*/
4217	PVMATRUNTIMEERROR pPrev = NULL;
4218	PVMATRUNTIMEERROR pCur = pUVM->vm.s.pAtRuntimeError;
4219	while ( pCur
4220	&& ( pCur->pfnAtRuntimeError != pfnAtRuntimeError
4221	\|\| pCur->pvUser != pvUser))
4222	{
4223	pPrev = pCur;
4224	pCur = pCur->pNext;
4225	}
4226	if (!pCur)
4227	{
4228	AssertMsgFailed(("pfnAtRuntimeError=%p was not found\n", pfnAtRuntimeError));
4229	RTCritSectLeave(&pUVM->vm.s.AtErrorCritSect);
4230	return VERR_FILE_NOT_FOUND;
4231	}
4232
4233	/*
4234	* Unlink it.
4235	*/
4236	if (pPrev)
4237	{
4238	pPrev->pNext = pCur->pNext;
4239	if (!pCur->pNext)
4240	pUVM->vm.s.ppAtRuntimeErrorNext = &pPrev->pNext;
4241	}
4242	else
4243	{
4244	pUVM->vm.s.pAtRuntimeError = pCur->pNext;
4245	if (!pCur->pNext)
4246	pUVM->vm.s.ppAtRuntimeErrorNext = &pUVM->vm.s.pAtRuntimeError;
4247	}
4248
4249	RTCritSectLeave(&pUVM->vm.s.AtErrorCritSect);
4250
4251	/*
4252	* Free it.
4253	*/
4254	pCur->pfnAtRuntimeError = NULL;
4255	pCur->pNext = NULL;
4256	MMR3HeapFree(pCur);
4257
4258	return VINF_SUCCESS;
4259	}
4260
4261
4262	/**
4263	* EMT rendezvous worker that vmR3SetRuntimeErrorCommon uses to safely change
4264	* the state to FatalError(LS).
4265	*
4266	* @returns VERR_VM_INVALID_VM_STATE or VINF_EM_SUSPEND. (This is a strict
4267	* return code, see FNVMMEMTRENDEZVOUS.)
4268	*
4269	* @param pVM The cross context VM structure.
4270	* @param pVCpu The cross context virtual CPU structure of the calling EMT.
4271	* @param pvUser Ignored.
4272	*/
4273	static DECLCALLBACK(VBOXSTRICTRC) vmR3SetRuntimeErrorChangeState(PVM pVM, PVMCPU pVCpu, void *pvUser)
4274	{
4275	NOREF(pVCpu);
4276	Assert(!pvUser); NOREF(pvUser);
4277
4278	/*
4279	* The first EMT thru here changes the state.
4280	*/
4281	if (pVCpu->idCpu == pVM->cCpus - 1)
4282	{
4283	int rc = vmR3TrySetState(pVM, "VMSetRuntimeError", 2,
4284	VMSTATE_FATAL_ERROR, VMSTATE_RUNNING,
4285	VMSTATE_FATAL_ERROR_LS, VMSTATE_RUNNING_LS);
4286	if (RT_FAILURE(rc))
4287	return rc;
4288	if (rc == 2)
4289	SSMR3Cancel(pVM->pUVM);
4290
4291	VM_FF_SET(pVM, VM_FF_CHECK_VM_STATE);
4292	}
4293
4294	/* This'll make sure we get out of whereever we are (e.g. REM). */
4295	return VINF_EM_SUSPEND;
4296	}
4297
4298
4299	/**
4300	* Worker for VMR3SetRuntimeErrorWorker and vmR3SetRuntimeErrorV.
4301	*
4302	* This does the common parts after the error has been saved / retrieved.
4303	*
4304	* @returns VBox status code with modifications, see VMSetRuntimeErrorV.
4305	*
4306	* @param pVM The cross context VM structure.
4307	* @param fFlags The error flags.
4308	* @param pszErrorId Error ID string.
4309	* @param pszFormat Format string.
4310	* @param pVa Pointer to the format arguments.
4311	*/
4312	static int vmR3SetRuntimeErrorCommon(PVM pVM, uint32_t fFlags, const char pszErrorId, const char pszFormat, va_list *pVa)
4313	{
4314	LogRel(("VM: Raising runtime error '%s' (fFlags=%#x)\n", pszErrorId, fFlags));
4315	PUVM pUVM = pVM->pUVM;
4316
4317	/*
4318	* Take actions before the call.
4319	*/
4320	int rc;
4321	if (fFlags & VMSETRTERR_FLAGS_FATAL)
4322	rc = VMMR3EmtRendezvous(pVM, VMMEMTRENDEZVOUS_FLAGS_TYPE_DESCENDING \| VMMEMTRENDEZVOUS_FLAGS_STOP_ON_ERROR,
4323	vmR3SetRuntimeErrorChangeState, NULL);
4324	else if (fFlags & VMSETRTERR_FLAGS_SUSPEND)
4325	rc = VMR3Suspend(pUVM, VMSUSPENDREASON_RUNTIME_ERROR);
4326	else
4327	rc = VINF_SUCCESS;
4328
4329	/*
4330	* Do the callback round.
4331	*/
4332	RTCritSectEnter(&pUVM->vm.s.AtErrorCritSect);
4333	ASMAtomicIncU32(&pUVM->vm.s.cRuntimeErrors);
4334	for (PVMATRUNTIMEERROR pCur = pUVM->vm.s.pAtRuntimeError; pCur; pCur = pCur->pNext)
4335	{
4336	va_list va;
4337	va_copy(va, *pVa);
4338	pCur->pfnAtRuntimeError(pUVM, pCur->pvUser, fFlags, pszErrorId, pszFormat, va);
4339	va_end(va);
4340	}
4341	RTCritSectLeave(&pUVM->vm.s.AtErrorCritSect);
4342
4343	return rc;
4344	}
4345
4346
4347	/**
4348	* Ellipsis to va_list wrapper for calling vmR3SetRuntimeErrorCommon.
4349	*/
4350	static int vmR3SetRuntimeErrorCommonF(PVM pVM, uint32_t fFlags, const char pszErrorId, const char pszFormat, ...)
4351	{
4352	va_list va;
4353	va_start(va, pszFormat);
4354	int rc = vmR3SetRuntimeErrorCommon(pVM, fFlags, pszErrorId, pszFormat, &va);
4355	va_end(va);
4356	return rc;
4357	}
4358
4359
4360	/**
4361	* This is a worker function for RC and Ring-0 calls to VMSetError and
4362	* VMSetErrorV.
4363	*
4364	* The message is found in VMINT.
4365	*
4366	* @returns VBox status code, see VMSetRuntimeError.
4367	* @param pVM The cross context VM structure.
4368	* @thread EMT.
4369	*/
4370	VMMR3_INT_DECL(int) VMR3SetRuntimeErrorWorker(PVM pVM)
4371	{
4372	VM_ASSERT_EMT(pVM);
4373	AssertReleaseMsgFailed(("And we have a winner! You get to implement Ring-0 and GC VMSetRuntimeErrorV! Congrats!\n"));
4374
4375	/*
4376	* Unpack the error (if we managed to format one).
4377	*/
4378	const char *pszErrorId = "SetRuntimeError";
4379	const char *pszMessage = "No message!";
4380	uint32_t fFlags = VMSETRTERR_FLAGS_FATAL;
4381	PVMRUNTIMEERROR pErr = pVM->vm.s.pRuntimeErrorR3;
4382	if (pErr)
4383	{
4384	AssertCompile(sizeof(const char) == sizeof(uint8_t));
4385	if (pErr->offErrorId)
4386	pszErrorId = (const char *)pErr + pErr->offErrorId;
4387	if (pErr->offMessage)
4388	pszMessage = (const char *)pErr + pErr->offMessage;
4389	fFlags = pErr->fFlags;
4390	}
4391
4392	/*
4393	* Join cause with vmR3SetRuntimeErrorV.
4394	*/
4395	return vmR3SetRuntimeErrorCommonF(pVM, fFlags, pszErrorId, "%s", pszMessage);
4396	}
4397
4398
4399	/**
4400	* Worker for VMSetRuntimeErrorV for doing the job on EMT in ring-3.
4401	*
4402	* @returns VBox status code with modifications, see VMSetRuntimeErrorV.
4403	*
4404	* @param pVM The cross context VM structure.
4405	* @param fFlags The error flags.
4406	* @param pszErrorId Error ID string.
4407	* @param pszMessage The error message residing the MM heap.
4408	*
4409	* @thread EMT
4410	*/
4411	DECLCALLBACK(int) vmR3SetRuntimeError(PVM pVM, uint32_t fFlags, const char pszErrorId, char pszMessage)
4412	{
4413	#if 0 /** @todo make copy of the error msg. */
4414	/*
4415	* Make a copy of the message.
4416	*/
4417	va_list va2;
4418	va_copy(va2, *pVa);
4419	vmSetRuntimeErrorCopy(pVM, fFlags, pszErrorId, pszFormat, va2);
4420	va_end(va2);
4421	#endif
4422
4423	/*
4424	* Join paths with VMR3SetRuntimeErrorWorker.
4425	*/
4426	int rc = vmR3SetRuntimeErrorCommonF(pVM, fFlags, pszErrorId, "%s", pszMessage);
4427	MMR3HeapFree(pszMessage);
4428	return rc;
4429	}
4430
4431
4432	/**
4433	* Worker for VMSetRuntimeErrorV for doing the job on EMT in ring-3.
4434	*
4435	* @returns VBox status code with modifications, see VMSetRuntimeErrorV.
4436	*
4437	* @param pVM The cross context VM structure.
4438	* @param fFlags The error flags.
4439	* @param pszErrorId Error ID string.
4440	* @param pszFormat Format string.
4441	* @param pVa Pointer to the format arguments.
4442	*
4443	* @thread EMT
4444	*/
4445	DECLCALLBACK(int) vmR3SetRuntimeErrorV(PVM pVM, uint32_t fFlags, const char pszErrorId, const char pszFormat, va_list *pVa)
4446	{
4447	/*
4448	* Make a copy of the message.
4449	*/
4450	va_list va2;
4451	va_copy(va2, *pVa);
4452	vmSetRuntimeErrorCopy(pVM, fFlags, pszErrorId, pszFormat, va2);
4453	va_end(va2);
4454
4455	/*
4456	* Join paths with VMR3SetRuntimeErrorWorker.
4457	*/
4458	return vmR3SetRuntimeErrorCommon(pVM, fFlags, pszErrorId, pszFormat, pVa);
4459	}
4460
4461
4462	/**
4463	* Gets the number of runtime errors raised via VMR3SetRuntimeError.
4464	*
4465	* This can be used avoid double error messages.
4466	*
4467	* @returns The runtime error count.
4468	* @param pUVM The user mode VM handle.
4469	*/
4470	VMMR3_INT_DECL(uint32_t) VMR3GetRuntimeErrorCount(PUVM pUVM)
4471	{
4472	return pUVM->vm.s.cRuntimeErrors;
4473	}
4474
4475
4476	/**
4477	* Gets the ID virtual of the virtual CPU associated with the calling thread.
4478	*
4479	* @returns The CPU ID. NIL_VMCPUID if the thread isn't an EMT.
4480	*
4481	* @param pVM The cross context VM structure.
4482	*/
4483	VMMR3_INT_DECL(RTCPUID) VMR3GetVMCPUId(PVM pVM)
4484	{
4485	PUVMCPU pUVCpu = (PUVMCPU)RTTlsGet(pVM->pUVM->vm.s.idxTLS);
4486	return pUVCpu
4487	? pUVCpu->idCpu
4488	: NIL_VMCPUID;
4489	}
4490
4491
4492	/**
4493	* Checks if the VM is long-mode (64-bit) capable or not.
4494	*
4495	* @returns true if VM can operate in long-mode, false otherwise.
4496	* @param pVM The cross context VM structure.
4497	*/
4498	VMMR3_INT_DECL(bool) VMR3IsLongModeAllowed(PVM pVM)
4499	{
4500	switch (pVM->bMainExecutionEngine)
4501	{
4502	case VM_EXEC_ENGINE_HW_VIRT:
4503	return HMIsLongModeAllowed(pVM);
4504
4505	case VM_EXEC_ENGINE_NATIVE_API:
4506	#ifndef IN_RC
4507	return NEMHCIsLongModeAllowed(pVM);
4508	#else
4509	return false;
4510	#endif
4511
4512	case VM_EXEC_ENGINE_NOT_SET:
4513	AssertFailed();
4514	RT_FALL_THRU();
4515	default:
4516	return false;
4517	}
4518	}
4519
4520
4521	/**
4522	* Returns the native ID of the current EMT VMCPU thread.
4523	*
4524	* @returns Handle if this is an EMT thread; NIL_RTNATIVETHREAD otherwise
4525	* @param pVM The cross context VM structure.
4526	* @thread EMT
4527	*/
4528	VMMR3DECL(RTNATIVETHREAD) VMR3GetVMCPUNativeThread(PVM pVM)
4529	{
4530	PUVMCPU pUVCpu = (PUVMCPU)RTTlsGet(pVM->pUVM->vm.s.idxTLS);
4531
4532	if (!pUVCpu)
4533	return NIL_RTNATIVETHREAD;
4534
4535	return pUVCpu->vm.s.NativeThreadEMT;
4536	}
4537
4538
4539	/**
4540	* Returns the native ID of the current EMT VMCPU thread.
4541	*
4542	* @returns Handle if this is an EMT thread; NIL_RTNATIVETHREAD otherwise
4543	* @param pUVM The user mode VM structure.
4544	* @thread EMT
4545	*/
4546	VMMR3DECL(RTNATIVETHREAD) VMR3GetVMCPUNativeThreadU(PUVM pUVM)
4547	{
4548	PUVMCPU pUVCpu = (PUVMCPU)RTTlsGet(pUVM->vm.s.idxTLS);
4549
4550	if (!pUVCpu)
4551	return NIL_RTNATIVETHREAD;
4552
4553	return pUVCpu->vm.s.NativeThreadEMT;
4554	}
4555
4556
4557	/**
4558	* Returns the handle of the current EMT VMCPU thread.
4559	*
4560	* @returns Handle if this is an EMT thread; NIL_RTNATIVETHREAD otherwise
4561	* @param pUVM The user mode VM handle.
4562	* @thread EMT
4563	*/
4564	VMMR3DECL(RTTHREAD) VMR3GetVMCPUThread(PUVM pUVM)
4565	{
4566	PUVMCPU pUVCpu = (PUVMCPU)RTTlsGet(pUVM->vm.s.idxTLS);
4567
4568	if (!pUVCpu)
4569	return NIL_RTTHREAD;
4570
4571	return pUVCpu->vm.s.ThreadEMT;
4572	}
4573
4574
4575	/**
4576	* Returns the handle of the current EMT VMCPU thread.
4577	*
4578	* @returns The IPRT thread handle.
4579	* @param pUVCpu The user mode CPU handle.
4580	* @thread EMT
4581	*/
4582	VMMR3_INT_DECL(RTTHREAD) VMR3GetThreadHandle(PUVMCPU pUVCpu)
4583	{
4584	return pUVCpu->vm.s.ThreadEMT;
4585	}
4586
4587
4588	/**
4589	* Return the package and core ID of a CPU.
4590	*
4591	* @returns VBOX status code.
4592	* @param pUVM The user mode VM handle.
4593	* @param idCpu Virtual CPU to get the ID from.
4594	* @param pidCpuCore Where to store the core ID of the virtual CPU.
4595	* @param pidCpuPackage Where to store the package ID of the virtual CPU.
4596	*
4597	*/
4598	VMMR3DECL(int) VMR3GetCpuCoreAndPackageIdFromCpuId(PUVM pUVM, VMCPUID idCpu, uint32_t pidCpuCore, uint32_t pidCpuPackage)
4599	{
4600	/*
4601	* Validate input.
4602	*/
4603	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
4604	PVM pVM = pUVM->pVM;
4605	VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
4606	AssertPtrReturn(pidCpuCore, VERR_INVALID_POINTER);
4607	AssertPtrReturn(pidCpuPackage, VERR_INVALID_POINTER);
4608	if (idCpu >= pVM->cCpus)
4609	return VERR_INVALID_CPU_ID;
4610
4611	/*
4612	* Set return values.
4613	*/
4614	#ifdef VBOX_WITH_MULTI_CORE
4615	*pidCpuCore = idCpu;
4616	*pidCpuPackage = 0;
4617	#else
4618	*pidCpuCore = 0;
4619	*pidCpuPackage = idCpu;
4620	#endif
4621
4622	return VINF_SUCCESS;
4623	}
4624
4625
4626	/**
4627	* Worker for VMR3HotUnplugCpu.
4628	*
4629	* @returns VINF_EM_WAIT_SPIP (strict status code).
4630	* @param pVM The cross context VM structure.
4631	* @param idCpu The current CPU.
4632	*/
4633	static DECLCALLBACK(int) vmR3HotUnplugCpu(PVM pVM, VMCPUID idCpu)
4634	{
4635	PVMCPU pVCpu = VMMGetCpuById(pVM, idCpu);
4636	VMCPU_ASSERT_EMT(pVCpu);
4637
4638	/*
4639	* Reset per CPU resources.
4640	*
4641	* Actually only needed for VT-x because the CPU seems to be still in some
4642	* paged mode and startup fails after a new hot plug event. SVM works fine
4643	* even without this.
4644	*/
4645	Log(("vmR3HotUnplugCpu for VCPU %u\n", idCpu));
4646	PGMR3ResetCpu(pVM, pVCpu);
4647	PDMR3ResetCpu(pVCpu);
4648	TRPMR3ResetCpu(pVCpu);
4649	CPUMR3ResetCpu(pVM, pVCpu);
4650	EMR3ResetCpu(pVCpu);
4651	HMR3ResetCpu(pVCpu);
4652	NEMR3ResetCpu(pVCpu, false /fInitIpi/);
4653	return VINF_EM_WAIT_SIPI;
4654	}
4655
4656
4657	/**
4658	* Hot-unplugs a CPU from the guest.
4659	*
4660	* @returns VBox status code.
4661	* @param pUVM The user mode VM handle.
4662	* @param idCpu Virtual CPU to perform the hot unplugging operation on.
4663	*/
4664	VMMR3DECL(int) VMR3HotUnplugCpu(PUVM pUVM, VMCPUID idCpu)
4665	{
4666	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
4667	PVM pVM = pUVM->pVM;
4668	VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
4669	AssertReturn(idCpu < pVM->cCpus, VERR_INVALID_CPU_ID);
4670
4671	/** @todo r=bird: Don't destroy the EMT, it'll break VMMR3EmtRendezvous and
4672	* broadcast requests. Just note down somewhere that the CPU is
4673	* offline and send it to SPIP wait. Maybe modify VMCPUSTATE and push
4674	* it out of the EM loops when offline. */
4675	return VMR3ReqCallNoWaitU(pUVM, idCpu, (PFNRT)vmR3HotUnplugCpu, 2, pVM, idCpu);
4676	}
4677
4678
4679	/**
4680	* Hot-plugs a CPU on the guest.
4681	*
4682	* @returns VBox status code.
4683	* @param pUVM The user mode VM handle.
4684	* @param idCpu Virtual CPU to perform the hot plugging operation on.
4685	*/
4686	VMMR3DECL(int) VMR3HotPlugCpu(PUVM pUVM, VMCPUID idCpu)
4687	{
4688	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
4689	PVM pVM = pUVM->pVM;
4690	VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
4691	AssertReturn(idCpu < pVM->cCpus, VERR_INVALID_CPU_ID);
4692
4693	/** @todo r-bird: Just mark it online and make sure it waits on SPIP. */
4694	return VINF_SUCCESS;
4695	}
4696
4697
4698	/**
4699	* Changes the VMM execution cap.
4700	*
4701	* @returns VBox status code.
4702	* @param pUVM The user mode VM structure.
4703	* @param uCpuExecutionCap New CPU execution cap in precent, 1-100. Where
4704	* 100 is max performance (default).
4705	*/
4706	VMMR3DECL(int) VMR3SetCpuExecutionCap(PUVM pUVM, uint32_t uCpuExecutionCap)
4707	{
4708	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
4709	PVM pVM = pUVM->pVM;
4710	VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
4711	AssertReturn(uCpuExecutionCap > 0 && uCpuExecutionCap <= 100, VERR_INVALID_PARAMETER);
4712
4713	Log(("VMR3SetCpuExecutionCap: new priority = %d\n", uCpuExecutionCap));
4714	/* Note: not called from EMT. */
4715	pVM->uCpuExecutionCap = uCpuExecutionCap;
4716	return VINF_SUCCESS;
4717	}
4718
4719
4720	/**
4721	* Control whether the VM should power off when resetting.
4722	*
4723	* @returns VBox status code.
4724	* @param pUVM The user mode VM handle.
4725	* @param fPowerOffInsteadOfReset Flag whether the VM should power off when
4726	* resetting.
4727	*/
4728	VMMR3DECL(int) VMR3SetPowerOffInsteadOfReset(PUVM pUVM, bool fPowerOffInsteadOfReset)
4729	{
4730	UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
4731	PVM pVM = pUVM->pVM;
4732	VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
4733
4734	/* Note: not called from EMT. */
4735	pVM->vm.s.fPowerOffInsteadOfReset = fPowerOffInsteadOfReset;
4736	return VINF_SUCCESS;
4737	}
4738

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source: vbox/trunk/src/VBox/VMM/VMMR3/VM.cpp@ 73494

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