/* $Id: VM.cpp 2984 2007-06-01 16:18:07Z vboxsync $ */ /** @file * VM - Virtual Machine */ /* * Copyright (C) 2006-2007 innotek GmbH * * This file is part of VirtualBox Open Source Edition (OSE), as * available from http://www.virtualbox.org. This file is free software; * you can redistribute it and/or modify it under the terms of the GNU * General Public License as published by the Free Software Foundation, * in version 2 as it comes in the "COPYING" file of the VirtualBox OSE * distribution. VirtualBox OSE is distributed in the hope that it will * be useful, but WITHOUT ANY WARRANTY of any kind. * * If you received this file as part of a commercial VirtualBox * distribution, then only the terms of your commercial VirtualBox * license agreement apply instead of the previous paragraph. */ /******************************************************************************* * Header Files * *******************************************************************************/ #define LOG_GROUP LOG_GROUP_VM #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "VMInternal.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include /* getenv */ /******************************************************************************* * Structures and Typedefs * *******************************************************************************/ /** * VM destruction callback registration record. */ typedef struct VMATDTOR { /** Pointer to the next record in the list. */ struct VMATDTOR *pNext; /** Pointer to the callback function. */ PFNVMATDTOR pfnAtDtor; /** The user argument. */ void *pvUser; } VMATDTOR; /** Pointer to a VM destruction callback registration record. */ typedef VMATDTOR *PVMATDTOR; /******************************************************************************* * Global Variables * *******************************************************************************/ /** Pointer to the list of VMs. */ static PVM g_pVMsHead; /** Pointer to the list of at VM destruction callbacks. */ static PVMATDTOR g_pVMAtDtorHead; /** Lock the g_pVMAtDtorHead list. */ #define VM_ATDTOR_LOCK() do { } while (0) /** Unlock the g_pVMAtDtorHead list. */ #define VM_ATDTOR_UNLOCK() do { } while (0) /******************************************************************************* * Internal Functions * *******************************************************************************/ static int vmR3Create(PVM pVM, PFNVMATERROR pfnVMAtError, void *pvUserVM, PFNCFGMCONSTRUCTOR pfnCFGMConstructor, void *pvUserCFGM); static void vmR3CallVMAtError(PFNVMATERROR pfnVMAtError, void *pvUser, int rc, RT_SRC_POS_DECL, const char *pszError, ...); static int vmR3InitRing3(PVM pVM); static int vmR3InitRing0(PVM pVM); static int vmR3InitGC(PVM pVM); static int vmR3InitDoCompleted(PVM pVM, VMINITCOMPLETED enmWhat); static DECLCALLBACK(int) vmR3PowerOn(PVM pVM); static DECLCALLBACK(int) vmR3Suspend(PVM pVM); static DECLCALLBACK(int) vmR3Resume(PVM pVM); static DECLCALLBACK(int) vmR3Save(PVM pVM, const char *pszFilename, PFNVMPROGRESS pfnProgress, void *pvUser); static DECLCALLBACK(int) vmR3Load(PVM pVM, const char *pszFilename, PFNVMPROGRESS pfnProgress, void *pvUser); static DECLCALLBACK(int) vmR3PowerOff(PVM pVM); static void vmR3AtDtor(PVM pVM); static void vmR3SetState(PVM pVM, VMSTATE enmStateNew); static int vmR3AtReset(PVM pVM); static DECLCALLBACK(int) vmR3Reset(PVM pVM); static DECLCALLBACK(int) vmR3AtStateRegister(PVM pVM, PFNVMATSTATE pfnAtState, void *pvUser); static DECLCALLBACK(int) vmR3AtStateDeregister(PVM pVM, PFNVMATSTATE pfnAtState, void *pvUser); static DECLCALLBACK(int) vmR3AtErrorRegister(PVM pVM, PFNVMATERROR pfnAtError, void *pvUser); static DECLCALLBACK(int) vmR3AtErrorDeregister(PVM pVM, PFNVMATERROR pfnAtError, void *pvUser); static DECLCALLBACK(int) vmR3AtRuntimeErrorRegister(PVM pVM, PFNVMATRUNTIMEERROR pfnAtRuntimeError, void *pvUser); static DECLCALLBACK(int) vmR3AtRuntimeErrorDeregister(PVM pVM, PFNVMATRUNTIMEERROR pfnAtRuntimeError, void *pvUser); /** * Do global VMM init. * * @returns VBox status code. */ VMR3DECL(int) VMR3GlobalInit(void) { /* * Only once. */ static bool fDone = false; if (fDone) return VINF_SUCCESS; /* * We're done. */ fDone = true; return VINF_SUCCESS; } /** * Creates a virtual machine by calling the supplied configuration constructor. * * On successful returned the VM is powered, i.e. VMR3PowerOn() should be * called to start the execution. * * @returns 0 on success. * @returns VBox error code on failure. * @param pfnVMAtError Pointer to callback function for setting VM errors. * This is called in the EM. * @param pvUserVM The user argument passed to pfnVMAtError. * @param pfnCFGMConstructor Pointer to callback function for constructing the VM configuration tree. * This is called in the EM. * @param pvUserCFGM The user argument passed to pfnCFGMConstructor. * @param ppVM Where to store the 'handle' of the created VM. */ VMR3DECL(int) VMR3Create(PFNVMATERROR pfnVMAtError, void *pvUserVM, PFNCFGMCONSTRUCTOR pfnCFGMConstructor, void *pvUserCFGM, PVM *ppVM) { LogFlow(("VMR3Create: pfnVMAtError=%p pvUserVM=%p pfnCFGMConstructor=%p pvUserCFGM=%p ppVM=%p\n", pfnVMAtError, pvUserVM, pfnCFGMConstructor, pvUserCFGM, ppVM)); /* * Because of the current hackiness of the applications * we'll have to initialize global stuff from here. * Later the applications will take care of this in a proper way. */ static bool fGlobalInitDone = false; if (!fGlobalInitDone) { int rc = VMR3GlobalInit(); if (VBOX_FAILURE(rc)) return rc; fGlobalInitDone = true; } /* * Init support library. */ PSUPDRVSESSION pSession = 0; int rc = SUPInit(&pSession, 0); if (VBOX_SUCCESS(rc)) { /* * Allocate memory for the VM structure. */ PVMR0 pVMR0 = NIL_RTR0PTR; PVM pVM = NULL; const unsigned cPages = RT_ALIGN_Z(sizeof(*pVM), PAGE_SIZE) >> PAGE_SHIFT; PSUPPAGE paPages = (PSUPPAGE)RTMemAllocZ(cPages * sizeof(SUPPAGE)); AssertReturn(paPages, VERR_NO_MEMORY); rc = SUPLowAlloc(cPages, (void **)&pVM, &pVMR0, &paPages[0]); if (VBOX_SUCCESS(rc)) { Log(("VMR3Create: Allocated pVM=%p pVMR0=%p\n", pVM, pVMR0)); /* * Do basic init of the VM structure. */ memset(pVM, 0, sizeof(*pVM)); pVM->pVMHC = pVM; pVM->pVMR0 = pVMR0; pVM->pVMR3 = pVM; pVM->paVMPagesR3 = paPages; pVM->pSession = pSession; pVM->vm.s.offVM = RT_OFFSETOF(VM, vm.s); pVM->vm.s.ppAtResetNext = &pVM->vm.s.pAtReset; pVM->vm.s.ppAtStateNext = &pVM->vm.s.pAtState; pVM->vm.s.ppAtErrorNext = &pVM->vm.s.pAtError; pVM->vm.s.ppAtRuntimeErrorNext = &pVM->vm.s.pAtRuntimeError; rc = RTSemEventCreate(&pVM->vm.s.EventSemWait); AssertRCReturn(rc, rc); /* * Initialize STAM. */ rc = STAMR3Init(pVM); if (VBOX_SUCCESS(rc)) { /* * Create the EMT thread and make it do VM initialization and go sleep * in EM waiting for requests. */ VMEMULATIONTHREADARGS Args; Args.pVM = pVM; rc = RTThreadCreate(&pVM->ThreadEMT, &vmR3EmulationThread, &Args, _1M, RTTHREADTYPE_EMULATION, RTTHREADFLAGS_WAITABLE, "EMT"); if (VBOX_SUCCESS(rc)) { /* * Issue a VM Create request and wait for it to complete. */ PVMREQ pReq; rc = VMR3ReqCall(pVM, &pReq, RT_INDEFINITE_WAIT, (PFNRT)vmR3Create, 5, pVM, pfnVMAtError, pvUserVM, pfnCFGMConstructor, pvUserCFGM); if (VBOX_SUCCESS(rc)) { rc = pReq->iStatus; VMR3ReqFree(pReq); if (VBOX_SUCCESS(rc)) { *ppVM = pVM; LogFlow(("VMR3Create: returns VINF_SUCCESS *ppVM=%p\n", pVM)); return VINF_SUCCESS; } AssertMsgFailed(("vmR3Create failed rc=%Vrc\n", rc)); } else AssertMsgFailed(("VMR3ReqCall failed rc=%Vrc\n", rc)); /* Forcefully terminate the emulation thread. */ VM_FF_SET(pVM, VM_FF_TERMINATE); VMR3NotifyFF(pVM, false); RTThreadWait(pVM->ThreadEMT, 1000, NULL); } int rc2 = STAMR3Term(pVM); AssertRC(rc2); } /* cleanup the heap. */ int rc2 = MMR3Term(pVM); AssertRC(rc2); /* free the VM memory */ rc2 = SUPLowFree(pVM, cPages); AssertRC(rc2); } else { rc = VERR_NO_MEMORY; vmR3CallVMAtError(pfnVMAtError, pvUserVM, rc, RT_SRC_POS, N_("Failed to allocate %d bytes of contiguous memory for the VM structure!\n"), RT_ALIGN(sizeof(*pVM), PAGE_SIZE)); AssertMsgFailed(("Failed to allocate %d bytes of contiguous memory for the VM structure!\n", RT_ALIGN(sizeof(*pVM), PAGE_SIZE))); } RTMemFree(paPages); /* terminate SUPLib */ int rc2 = SUPTerm(false); AssertRC(rc2); } else { const char *pszError; /* * An error occurred at support library initialization time (before the * VM could be created). Set the error message directly using the * initial callback, as the callback list doesn't exist yet. */ switch (rc) { case VERR_VM_DRIVER_LOAD_ERROR: #ifdef __LINUX pszError = N_("VirtualBox kernel driver not loaded. The vboxdrv kernel module " "was either not loaded or /dev/vboxdrv is not set up properly. " "Re-setup the kernel module by executing " "'/etc/init.d/vboxdrv setup' as root"); #else pszError = N_("VirtualBox kernel driver not loaded."); #endif break; case VERR_VM_DRIVER_OPEN_ERROR: pszError = N_("VirtualBox kernel driver cannot be opened"); break; case VERR_VM_DRIVER_NOT_ACCESSIBLE: #ifdef __LINUX__ pszError = N_("The VirtualBox kernel driver is not accessible to the current " "user. Make sure that the user has write permissions for " "/dev/vboxdrv by adding them to the vboxusers groups. You " "will need to logout for the change to take effect."); #else pszError = N_("VirtualBox kernel driver not accessible, permission problem"); #endif break; case VERR_VM_DRIVER_NOT_INSTALLED: #ifdef __LINUX__ pszError = N_("VirtualBox kernel driver not installed. The vboxdrv kernel module " "was either not loaded or /dev/vboxdrv was not created for some " "reason. Re-setup the kernel module by executing " "'/etc/init.d/vboxdrv setup' as root"); #else pszError = N_("VirtualBox kernel driver not installed"); #endif break; case VERR_NO_MEMORY: pszError = N_("VirtualBox support library out of memory"); break; case VERR_VERSION_MISMATCH: pszError = N_("The VirtualBox support driver which is running is from a different " "version of VirtualBox. You can correct this by stopping all " "running instances of VirtualBox and reinstalling the software."); break; default: pszError = N_("Unknown error initializing kernel driver (%Vrc)"); AssertMsgFailed(("Add error message for rc=%d (%Vrc)\n", rc, rc)); } vmR3CallVMAtError(pfnVMAtError, pvUserVM, rc, RT_SRC_POS, pszError, rc); } LogFlow(("VMR3Create: returns %Vrc\n", rc)); return rc; } /** * Wrapper for getting a correct va_list. */ static void vmR3CallVMAtError(PFNVMATERROR pfnVMAtError, void *pvUser, int rc, RT_SRC_POS_DECL, const char *pszError, ...) { va_list va; va_start(va, pszError); pfnVMAtError(NULL, pvUser, rc, RT_SRC_POS_ARGS, pszError, va); va_end(va); } /** * Initializes the VM. */ static int vmR3Create(PVM pVM, PFNVMATERROR pfnVMAtError, void *pvUserVM, PFNCFGMCONSTRUCTOR pfnCFGMConstructor, void *pvUserCFGM) { int rc = VINF_SUCCESS; /* Register error callback if specified. */ if (pfnVMAtError) rc = VMR3AtErrorRegister(pVM, pfnVMAtError, pvUserVM); if (VBOX_SUCCESS(rc)) { /* * Init the configuration. */ rc = CFGMR3Init(pVM, pfnCFGMConstructor, pvUserCFGM); if (VBOX_SUCCESS(rc)) { /* * If executing in fake suplib mode disable RR3 and RR0 in the config. */ const char *psz = getenv("VBOX_SUPLIB_FAKE"); if (psz && !strcmp(psz, "fake")) { CFGMR3RemoveValue(CFGMR3GetRoot(pVM), "RawR3Enabled"); CFGMR3InsertInteger(CFGMR3GetRoot(pVM), "RawR3Enabled", 0); CFGMR3RemoveValue(CFGMR3GetRoot(pVM), "RawR0Enabled"); CFGMR3InsertInteger(CFGMR3GetRoot(pVM), "RawR0Enabled", 0); } /* * Check if the required minimum of resources are available. */ /** @todo Check if the required minimum of resources are available. */ if (VBOX_SUCCESS(rc)) { /* * Init the Ring-3 components and do a round of relocations with 0 delta. */ rc = vmR3InitRing3(pVM); if (VBOX_SUCCESS(rc)) { VMR3Relocate(pVM, 0); LogFlow(("Ring-3 init succeeded\n")); /* * Init the Ring-0 components. */ rc = vmR3InitRing0(pVM); if (VBOX_SUCCESS(rc)) { /* Relocate again, because some switcher fixups depends on R0 init results. */ VMR3Relocate(pVM, 0); /* * Init the tcp debugger console if we're building * with debugger support. */ void *pvUser = NULL; rc = DBGCTcpCreate(pVM, &pvUser); if ( VBOX_SUCCESS(rc) || rc == VERR_NET_ADDRESS_IN_USE) { pVM->vm.s.pvDBGC = pvUser; /* * Init the Guest Context components. */ rc = vmR3InitGC(pVM); if (VBOX_SUCCESS(rc)) { /* * Set the state and link into the global list. */ vmR3SetState(pVM, VMSTATE_CREATED); pVM->pNext = g_pVMsHead; g_pVMsHead = pVM; return VINF_SUCCESS; } DBGCTcpTerminate(pVM, pVM->vm.s.pvDBGC); pVM->vm.s.pvDBGC = NULL; } //.. } //.. } //.. } /* Clean CFGM. */ int rc2 = CFGMR3Term(pVM); AssertRC(rc2); } //.. } LogFlow(("vmR3Create: returns %Vrc\n", rc)); return rc; } /** * Initializes all R3 components of the VM */ static int vmR3InitRing3(PVM pVM) { int rc; /* * Init all R3 components, the order here might be important. */ rc = vmR3SetHaltMethod(pVM, VMHALTMETHOD_DEFAULT); AssertRCReturn(rc, rc); rc = MMR3Init(pVM); if (VBOX_SUCCESS(rc)) { STAM_REG(pVM, &pVM->StatTotalInGC, STAMTYPE_PROFILE_ADV, "/PROF/VM/InGC", STAMUNIT_TICKS_PER_CALL, "Profiling the total time spent in GC."); STAM_REG(pVM, &pVM->StatSwitcherToGC, STAMTYPE_PROFILE_ADV, "/PROF/VM/SwitchToGC", STAMUNIT_TICKS_PER_CALL, "Profiling switching to GC."); STAM_REG(pVM, &pVM->StatSwitcherToHC, STAMTYPE_PROFILE_ADV, "/PROF/VM/SwitchToHC", STAMUNIT_TICKS_PER_CALL, "Profiling switching to HC."); STAM_REL_REG(pVM, &pVM->vm.s.StatHaltYield, STAMTYPE_PROFILE, "/PROF/VM/Halt/Yield", STAMUNIT_TICKS_PER_CALL, "Profiling halted state yielding."); STAM_REL_REG(pVM, &pVM->vm.s.StatHaltBlock, STAMTYPE_PROFILE, "/PROF/VM/Halt/Block", STAMUNIT_TICKS_PER_CALL, "Profiling halted state blocking."); STAM_REL_REG(pVM, &pVM->vm.s.StatHaltTimers,STAMTYPE_PROFILE, "/PROF/VM/Halt/Timers", STAMUNIT_TICKS_PER_CALL, "Profiling halted state timer tasks."); STAM_REL_REG(pVM, &pVM->vm.s.StatHaltPoll, STAMTYPE_PROFILE, "/PROF/VM/Halt/Poll", STAMUNIT_TICKS_PER_CALL, "Profiling halted state poll tasks."); STAM_REG(pVM, &pVM->StatSwitcherSaveRegs, STAMTYPE_PROFILE_ADV, "/VM/Switcher/ToGC/SaveRegs", STAMUNIT_TICKS_PER_CALL,"Profiling switching to GC."); STAM_REG(pVM, &pVM->StatSwitcherSysEnter, STAMTYPE_PROFILE_ADV, "/VM/Switcher/ToGC/SysEnter", STAMUNIT_TICKS_PER_CALL,"Profiling switching to GC."); STAM_REG(pVM, &pVM->StatSwitcherDebug, STAMTYPE_PROFILE_ADV, "/VM/Switcher/ToGC/Debug", STAMUNIT_TICKS_PER_CALL,"Profiling switching to GC."); STAM_REG(pVM, &pVM->StatSwitcherCR0, STAMTYPE_PROFILE_ADV, "/VM/Switcher/ToGC/CR0", STAMUNIT_TICKS_PER_CALL, "Profiling switching to GC."); STAM_REG(pVM, &pVM->StatSwitcherCR4, STAMTYPE_PROFILE_ADV, "/VM/Switcher/ToGC/CR4", STAMUNIT_TICKS_PER_CALL, "Profiling switching to GC."); STAM_REG(pVM, &pVM->StatSwitcherLgdt, STAMTYPE_PROFILE_ADV, "/VM/Switcher/ToGC/Lgdt", STAMUNIT_TICKS_PER_CALL, "Profiling switching to GC."); STAM_REG(pVM, &pVM->StatSwitcherLidt, STAMTYPE_PROFILE_ADV, "/VM/Switcher/ToGC/Lidt", STAMUNIT_TICKS_PER_CALL, "Profiling switching to GC."); STAM_REG(pVM, &pVM->StatSwitcherLldt, STAMTYPE_PROFILE_ADV, "/VM/Switcher/ToGC/Lldt", STAMUNIT_TICKS_PER_CALL, "Profiling switching to GC."); STAM_REG(pVM, &pVM->StatSwitcherTSS, STAMTYPE_PROFILE_ADV, "/VM/Switcher/ToGC/TSS", STAMUNIT_TICKS_PER_CALL, "Profiling switching to GC."); STAM_REG(pVM, &pVM->StatSwitcherJmpCR3, STAMTYPE_PROFILE_ADV, "/VM/Switcher/ToGC/JmpCR3", STAMUNIT_TICKS_PER_CALL,"Profiling switching to GC."); STAM_REG(pVM, &pVM->StatSwitcherRstrRegs, STAMTYPE_PROFILE_ADV, "/VM/Switcher/ToGC/RstrRegs", STAMUNIT_TICKS_PER_CALL,"Profiling switching to GC."); STAM_REG(pVM, &pVM->vm.s.StatReqAllocNew, STAMTYPE_COUNTER, "/VM/Req/AllocNew", STAMUNIT_OCCURENCES, "Number of VMR3ReqAlloc returning a new packet."); STAM_REG(pVM, &pVM->vm.s.StatReqAllocRaces, STAMTYPE_COUNTER, "/VM/Req/AllocRaces", STAMUNIT_OCCURENCES, "Number of VMR3ReqAlloc causing races."); STAM_REG(pVM, &pVM->vm.s.StatReqAllocRecycled, STAMTYPE_COUNTER, "/VM/Req/AllocRecycled", STAMUNIT_OCCURENCES, "Number of VMR3ReqAlloc returning a recycled packet."); STAM_REG(pVM, &pVM->vm.s.StatReqFree, STAMTYPE_COUNTER, "/VM/Req/Free", STAMUNIT_OCCURENCES, "Number of VMR3ReqFree calls."); STAM_REG(pVM, &pVM->vm.s.StatReqFreeOverflow, STAMTYPE_COUNTER, "/VM/Req/FreeOverflow", STAMUNIT_OCCURENCES, "Number of times the request was actually freed."); rc = CPUMR3Init(pVM); if (VBOX_SUCCESS(rc)) { rc = HWACCMR3Init(pVM); if (VBOX_SUCCESS(rc)) { rc = PGMR3Init(pVM); if (VBOX_SUCCESS(rc)) { rc = REMR3Init(pVM); if (VBOX_SUCCESS(rc)) { rc = MMR3InitPaging(pVM); if (VBOX_SUCCESS(rc)) rc = TMR3Init(pVM); if (VBOX_SUCCESS(rc)) { rc = VMMR3Init(pVM); if (VBOX_SUCCESS(rc)) { rc = SELMR3Init(pVM); if (VBOX_SUCCESS(rc)) { rc = TRPMR3Init(pVM); if (VBOX_SUCCESS(rc)) { rc = CSAMR3Init(pVM); if (VBOX_SUCCESS(rc)) { rc = PATMR3Init(pVM); if (VBOX_SUCCESS(rc)) { rc = IOMR3Init(pVM); if (VBOX_SUCCESS(rc)) { rc = EMR3Init(pVM); if (VBOX_SUCCESS(rc)) { rc = DBGFR3Init(pVM); if (VBOX_SUCCESS(rc)) { rc = PDMR3Init(pVM); if (VBOX_SUCCESS(rc)) { rc = PGMR3InitDynMap(pVM); if (VBOX_SUCCESS(rc)) rc = MMR3HyperInitFinalize(pVM); if (VBOX_SUCCESS(rc)) rc = PATMR3InitFinalize(pVM); if (VBOX_SUCCESS(rc)) rc = PGMR3InitFinalize(pVM); if (VBOX_SUCCESS(rc)) rc = SELMR3InitFinalize(pVM); if (VBOX_SUCCESS(rc)) rc = VMMR3InitFinalize(pVM); if (VBOX_SUCCESS(rc)) rc = vmR3InitDoCompleted(pVM, VMINITCOMPLETED_RING3); if (VBOX_SUCCESS(rc)) { LogFlow(("vmR3InitRing3: returns %Vrc\n", VINF_SUCCESS)); return VINF_SUCCESS; } int rc2 = PDMR3Term(pVM); AssertRC(rc2); } int rc2 = DBGFR3Term(pVM); AssertRC(rc2); } int rc2 = EMR3Term(pVM); AssertRC(rc2); } int rc2 = IOMR3Term(pVM); AssertRC(rc2); } int rc2 = PATMR3Term(pVM); AssertRC(rc2); } int rc2 = CSAMR3Term(pVM); AssertRC(rc2); } int rc2 = TRPMR3Term(pVM); AssertRC(rc2); } int rc2 = SELMR3Term(pVM); AssertRC(rc2); } int rc2 = VMMR3Term(pVM); AssertRC(rc2); } int rc2 = TMR3Term(pVM); AssertRC(rc2); } int rc2 = REMR3Term(pVM); AssertRC(rc2); } int rc2 = PGMR3Term(pVM); AssertRC(rc2); } int rc2 = HWACCMR3Term(pVM); AssertRC(rc2); } //int rc2 = CPUMR3Term(pVM); //AssertRC(rc2); } /* MMR3Term is not called here because it'll kill the heap. */ } LogFlow(("vmR3InitRing3: returns %Vrc\n", rc)); return rc; } /** * Initializes all R0 components of the VM */ static int vmR3InitRing0(PVM pVM) { LogFlow(("vmR3InitRing0:\n")); /* * Check for FAKE suplib mode. */ int rc = VINF_SUCCESS; const char *psz = getenv("VBOX_SUPLIB_FAKE"); if (!psz || strcmp(psz, "fake")) { /* * Call the VMMR0 component and let it do the init. */ rc = VMMR3InitR0(pVM); } else Log(("vmR3InitRing0: skipping because of VBOX_SUPLIB_FAKE=fake\n")); /* * Do notifications and return. */ if (VBOX_SUCCESS(rc)) rc = vmR3InitDoCompleted(pVM, VMINITCOMPLETED_RING0); LogFlow(("vmR3InitRing0: returns %Vrc\n", rc)); return rc; } /** * Initializes all GC components of the VM */ static int vmR3InitGC(PVM pVM) { LogFlow(("vmR3InitGC:\n")); /* * Check for FAKE suplib mode. */ int rc = VINF_SUCCESS; const char *psz = getenv("VBOX_SUPLIB_FAKE"); if (!psz || strcmp(psz, "fake")) { /* * Call the VMMR0 component and let it do the init. */ rc = VMMR3InitGC(pVM); } else Log(("vmR3InitGC: skipping because of VBOX_SUPLIB_FAKE=fake\n")); /* * Do notifications and return. */ if (VBOX_SUCCESS(rc)) rc = vmR3InitDoCompleted(pVM, VMINITCOMPLETED_GC); LogFlow(("vmR3InitGC: returns %Vrc\n", rc)); return rc; } /** * Do init completed notifications. * This notifications can fail. * * @param pVM The VM handle. * @param enmWhat What's completed. */ static int vmR3InitDoCompleted(PVM pVM, VMINITCOMPLETED enmWhat) { return VINF_SUCCESS; } /** * Calls the relocation functions for all VMM components so they can update * any GC pointers. When this function is called all the basic VM members * have been updated and the actual memory relocation have been done * by the PGM/MM. * * This is used both on init and on runtime relocations. * * @param pVM VM handle. * @param offDelta Relocation delta relative to old location. */ VMR3DECL(void) VMR3Relocate(PVM pVM, RTGCINTPTR offDelta) { LogFlow(("VMR3Relocate: offDelta=%VGv\n", offDelta)); /* * The order here is very important! */ PGMR3Relocate(pVM, offDelta); PDMR3LdrRelocate(pVM, offDelta); PGMR3Relocate(pVM, 0); /* Repeat after PDM relocation. */ CPUMR3Relocate(pVM); HWACCMR3Relocate(pVM); SELMR3Relocate(pVM); VMMR3Relocate(pVM, offDelta); SELMR3Relocate(pVM); /* !hack! fix stack! */ TRPMR3Relocate(pVM, offDelta); PATMR3Relocate(pVM); CSAMR3Relocate(pVM, offDelta); IOMR3Relocate(pVM, offDelta); EMR3Relocate(pVM); TMR3Relocate(pVM, offDelta); DBGFR3Relocate(pVM, offDelta); PDMR3Relocate(pVM, offDelta); } /** * Power on the virtual machine. * * @returns 0 on success. * @returns VBox error code on failure. * @param pVM VM to power on. * @thread Any thread. * @vmstate Created * @vmstateto Running */ VMR3DECL(int) VMR3PowerOn(PVM pVM) { LogFlow(("VMR3PowerOn: pVM=%p\n", pVM)); /* * Validate input. */ if (!pVM) { AssertMsgFailed(("Invalid VM pointer\n")); return VERR_INVALID_PARAMETER; } /* * Request the operation in EMT. */ PVMREQ pReq; int rc = VMR3ReqCall(pVM, &pReq, RT_INDEFINITE_WAIT, (PFNRT)vmR3PowerOn, 1, pVM); if (VBOX_SUCCESS(rc)) { rc = pReq->iStatus; VMR3ReqFree(pReq); } LogFlow(("VMR3PowerOn: returns %Vrc\n", rc)); return rc; } /** * Power on the virtual machine. * * @returns 0 on success. * @returns VBox error code on failure. * @param pVM VM to power on. * @thread EMT */ static DECLCALLBACK(int) vmR3PowerOn(PVM pVM) { LogFlow(("vmR3PowerOn: pVM=%p\n", pVM)); /* * Validate input. */ if (pVM->enmVMState != VMSTATE_CREATED) { AssertMsgFailed(("Invalid VM state %d\n", pVM->enmVMState)); return VERR_VM_INVALID_VM_STATE; } /* * Change the state, notify the components and resume the execution. */ vmR3SetState(pVM, VMSTATE_RUNNING); PDMR3PowerOn(pVM); return VINF_SUCCESS; } /** * Suspends a running VM. * * @returns 0 on success. * @returns VBox error code on failure. * @param pVM VM to suspend. * @thread Any thread. * @vmstate Running * @vmstateto Suspended */ VMR3DECL(int) VMR3Suspend(PVM pVM) { LogFlow(("VMR3Suspend: pVM=%p\n", pVM)); /* * Validate input. */ if (!pVM) { AssertMsgFailed(("Invalid VM pointer\n")); return VERR_INVALID_PARAMETER; } /* * Request the operation in EMT. */ PVMREQ pReq; int rc = VMR3ReqCall(pVM, &pReq, RT_INDEFINITE_WAIT, (PFNRT)vmR3Suspend, 1, pVM); if (VBOX_SUCCESS(rc)) { rc = pReq->iStatus; VMR3ReqFree(pReq); } LogFlow(("VMR3Suspend: returns %Vrc\n", rc)); return rc; } /** * Suspends a running VM and prevent state saving until the VM is resumed or stopped. * * @returns 0 on success. * @returns VBox error code on failure. * @param pVM VM to suspend. * @thread Any thread. * @vmstate Running * @vmstateto Suspended */ VMR3DECL(int) VMR3SuspendNoSave(PVM pVM) { pVM->vm.s.fPreventSaveState = true; return VMR3Suspend(pVM); } /** * Suspends a running VM. * * @returns 0 on success. * @returns VBox error code on failure. * @param pVM VM to suspend. * @thread EMT */ static DECLCALLBACK(int) vmR3Suspend(PVM pVM) { LogFlow(("vmR3Suspend: pVM=%p\n", pVM)); /* * Validate input. */ if (pVM->enmVMState != VMSTATE_RUNNING) { AssertMsgFailed(("Invalid VM state %d\n", pVM->enmVMState)); return VERR_VM_INVALID_VM_STATE; } /* * Change the state, notify the components and resume the execution. */ vmR3SetState(pVM, VMSTATE_SUSPENDED); PDMR3Suspend(pVM); return VINF_EM_SUSPEND; } /** * Resume VM execution. * * @returns 0 on success. * @returns VBox error code on failure. * @param pVM The VM to resume. * @thread Any thread. * @vmstate Suspended * @vmstateto Running */ VMR3DECL(int) VMR3Resume(PVM pVM) { LogFlow(("VMR3Resume: pVM=%p\n", pVM)); /* * Validate input. */ if (!pVM) { AssertMsgFailed(("Invalid VM pointer\n")); return VERR_INVALID_PARAMETER; } /* * Request the operation in EMT. */ PVMREQ pReq; int rc = VMR3ReqCall(pVM, &pReq, RT_INDEFINITE_WAIT, (PFNRT)vmR3Resume, 1, pVM); if (VBOX_SUCCESS(rc)) { rc = pReq->iStatus; VMR3ReqFree(pReq); } LogFlow(("VMR3Resume: returns %Vrc\n", rc)); return rc; } /** * Resume VM execution. * * @returns 0 on success. * @returns VBox error code on failure. * @param pVM The VM to resume. * @thread EMT */ static DECLCALLBACK(int) vmR3Resume(PVM pVM) { LogFlow(("vmR3Resume: pVM=%p\n", pVM)); /* * Validate input. */ if (pVM->enmVMState != VMSTATE_SUSPENDED) { AssertMsgFailed(("Invalid VM state %d\n", pVM->enmVMState)); return VERR_VM_INVALID_VM_STATE; } /* * Change the state, notify the components and resume the execution. */ pVM->vm.s.fPreventSaveState = false; vmR3SetState(pVM, VMSTATE_RUNNING); PDMR3Resume(pVM); return VINF_EM_RESUME; } /** * Save current VM state. * * To save and terminate the VM, the VM must be suspended before the call. * * @returns 0 on success. * @returns VBox error code on failure. * @param pVM VM which state should be saved. * @param pszFilename Name of the save state file. * @param pfnProgress Progress callback. Optional. * @param pvUser User argument for the progress callback. * @thread Any thread. * @vmstate Suspended * @vmstateto Unchanged state. */ VMR3DECL(int) VMR3Save(PVM pVM, const char *pszFilename, PFNVMPROGRESS pfnProgress, void *pvUser) { LogFlow(("VMR3Save: pVM=%p pszFilename=%p:{%s} pfnProgress=%p pvUser=%p\n", pVM, pszFilename, pszFilename, pfnProgress, pvUser)); /* * Validate input. */ if (!pVM) { AssertMsgFailed(("Invalid VM pointer\n")); return VERR_INVALID_PARAMETER; } if (!pszFilename) { AssertMsgFailed(("Must specify a filename to save the state to, wise guy!\n")); return VERR_INVALID_PARAMETER; } /* * Request the operation in EMT. */ PVMREQ pReq; int rc = VMR3ReqCall(pVM, &pReq, RT_INDEFINITE_WAIT, (PFNRT)vmR3Save, 4, pVM, pszFilename, pfnProgress, pvUser); if (VBOX_SUCCESS(rc)) { rc = pReq->iStatus; VMR3ReqFree(pReq); } LogFlow(("VMR3Save: returns %Vrc\n", rc)); return rc; } /** * Save current VM state. * * To save and terminate the VM, the VM must be suspended before the call. * * @returns 0 on success. * @returns VBox error code on failure. * @param pVM VM which state should be saved. * @param pszFilename Name of the save state file. * @param pfnProgress Progress callback. Optional. * @param pvUser User argument for the progress callback. * @thread EMT */ static DECLCALLBACK(int) vmR3Save(PVM pVM, const char *pszFilename, PFNVMPROGRESS pfnProgress, void *pvUser) { LogFlow(("vmR3Save: pVM=%p pszFilename=%p:{%s} pfnProgress=%p pvUser=%p\n", pVM, pszFilename, pszFilename, pfnProgress, pvUser)); /* * Validate input. */ if (pVM->enmVMState != VMSTATE_SUSPENDED) { AssertMsgFailed(("Invalid VM state %d\n", pVM->enmVMState)); return VERR_VM_INVALID_VM_STATE; } /* If we are in an inconsistent state, then we don't allow state saving. */ if (pVM->vm.s.fPreventSaveState) { LogRel(("VMM: vmR3Save: saving the VM state is not allowed at this moment\n")); return VERR_VM_SAVE_STATE_NOT_ALLOWED; } /* * Change the state and perform the save. */ /** @todo implement progress support in SSM */ vmR3SetState(pVM, VMSTATE_SAVING); int rc = SSMR3Save(pVM, pszFilename, SSMAFTER_CONTINUE, pfnProgress, pvUser); vmR3SetState(pVM, VMSTATE_SUSPENDED); return rc; } /** * Loads a new VM state. * * To restore a saved state on VM startup, call this function and then * resume the VM instead of powering it on. * * @returns 0 on success. * @returns VBox error code on failure. * @param pVM VM which state should be saved. * @param pszFilename Name of the save state file. * @param pfnProgress Progress callback. Optional. * @param pvUser User argument for the progress callback. * @thread Any thread. * @vmstate Created, Suspended * @vmstateto Suspended */ VMR3DECL(int) VMR3Load(PVM pVM, const char *pszFilename, PFNVMPROGRESS pfnProgress, void *pvUser) { LogFlow(("VMR3Load: pVM=%p pszFilename=%p:{%s} pfnProgress=%p pvUser=%p\n", pVM, pszFilename, pszFilename, pfnProgress, pvUser)); /* * Validate input. */ if (!pVM) { AssertMsgFailed(("Invalid VM pointer\n")); return VERR_INVALID_PARAMETER; } if (!pszFilename) { AssertMsgFailed(("Must specify a filename to load the state from, wise guy!\n")); return VERR_INVALID_PARAMETER; } /* * Request the operation in EMT. */ PVMREQ pReq; int rc = VMR3ReqCall(pVM, &pReq, RT_INDEFINITE_WAIT, (PFNRT)vmR3Load, 4, pVM, pszFilename, pfnProgress, pvUser); if (VBOX_SUCCESS(rc)) { rc = pReq->iStatus; VMR3ReqFree(pReq); } LogFlow(("VMR3Load: returns %Vrc\n", rc)); return rc; } /** * Loads a new VM state. * * To restore a saved state on VM startup, call this function and then * resume the VM instead of powering it on. * * @returns 0 on success. * @returns VBox error code on failure. * @param pVM VM which state should be saved. * @param pszFilename Name of the save state file. * @param pfnProgress Progress callback. Optional. * @param pvUser User argument for the progress callback. * @thread EMT. */ static DECLCALLBACK(int) vmR3Load(PVM pVM, const char *pszFilename, PFNVMPROGRESS pfnProgress, void *pvUser) { LogFlow(("vmR3Load: pVM=%p pszFilename=%p:{%s} pfnProgress=%p pvUser=%p\n", pVM, pszFilename, pszFilename, pfnProgress, pvUser)); /* * Validate input. */ if ( pVM->enmVMState != VMSTATE_SUSPENDED && pVM->enmVMState != VMSTATE_CREATED) { AssertMsgFailed(("Invalid VM state %d\n", pVM->enmVMState)); return VMSetError(pVM, VERR_VM_INVALID_VM_STATE, RT_SRC_POS, N_("Invalid VM state (%s) for restoring state from '%s'"), VMR3GetStateName(pVM->enmVMState), pszFilename); } /* * Change the state and perform the load. */ vmR3SetState(pVM, VMSTATE_LOADING); int rc = SSMR3Load(pVM, pszFilename, SSMAFTER_RESUME, pfnProgress, pvUser); if (VBOX_SUCCESS(rc)) { /* Not paranoia anymore; the saved guest might use different hypervisor selectors. We must call VMR3Relocate. */ VMR3Relocate(pVM, 0); vmR3SetState(pVM, VMSTATE_SUSPENDED); } else { vmR3SetState(pVM, VMSTATE_LOAD_FAILURE); rc = VMSetError(pVM, rc, RT_SRC_POS, N_("Failed to restore VM state from '%s' (%Vrc)"), pszFilename, rc); } return rc; } /** * Power Off the VM. * * @returns 0 on success. * @returns VBox error code on failure. * @param pVM VM which should be destroyed. * @thread Any thread. * @vmstate Suspended, Running, Guru Mediation, Load Failure * @vmstateto Off */ VMR3DECL(int) VMR3PowerOff(PVM pVM) { LogFlow(("VMR3PowerOff: pVM=%p\n", pVM)); /* * Validate input. */ if (!pVM) { AssertMsgFailed(("Invalid VM pointer\n")); return VERR_INVALID_PARAMETER; } /* * Request the operation in EMT. */ PVMREQ pReq; int rc = VMR3ReqCall(pVM, &pReq, RT_INDEFINITE_WAIT, (PFNRT)vmR3PowerOff, 1, pVM); if (VBOX_SUCCESS(rc)) { rc = pReq->iStatus; VMR3ReqFree(pReq); } LogFlow(("VMR3PowerOff: returns %Vrc\n", rc)); return rc; } /** * Power Off the VM. * * @returns 0 on success. * @returns VBox error code on failure. * @param pVM VM which should be destroyed. * @thread EMT. */ static DECLCALLBACK(int) vmR3PowerOff(PVM pVM) { LogFlow(("vmR3PowerOff: pVM=%p\n", pVM)); /* * Validate input. */ if ( pVM->enmVMState != VMSTATE_RUNNING && pVM->enmVMState != VMSTATE_SUSPENDED && pVM->enmVMState != VMSTATE_LOAD_FAILURE && pVM->enmVMState != VMSTATE_GURU_MEDITATION) { AssertMsgFailed(("Invalid VM state %d\n", pVM->enmVMState)); return VERR_VM_INVALID_VM_STATE; } /* * For debugging purposes, we will log a summary of the guest state at this point. */ if (pVM->enmVMState != VMSTATE_GURU_MEDITATION) { /** @todo make the state dumping at VMR3PowerOff optional. */ RTLogRelPrintf("****************** Guest state at power off ******************\n"); DBGFR3Info(pVM, "cpumguest", "verbose", DBGFR3InfoLogRelHlp()); RTLogRelPrintf("***\n"); DBGFR3Info(pVM, "mode", NULL, DBGFR3InfoLogRelHlp()); RTLogRelPrintf("***\n"); DBGFR3Info(pVM, "activetimers", NULL, DBGFR3InfoLogRelHlp()); RTLogRelPrintf("***\n"); DBGFR3Info(pVM, "gdt", NULL, DBGFR3InfoLogRelHlp()); /** @todo dump guest call stack. */ #if 1 // temporary while debugging #1589 RTLogRelPrintf("***\n"); uint32_t esp = CPUMGetGuestESP(pVM); if ( CPUMGetGuestSS(pVM) == 0 && esp < _64K) { RTLogRelPrintf("***\n" "ss:sp=0000:%04x ", esp); void *pv; int rc = PGMPhysGCPtr2HCPtr(pVM, esp, &pv); if (VBOX_SUCCESS(rc)) { const uint8_t *pb = (uint8_t *)((uintptr_t)pv & ~(uintptr_t)0x3f); RTLogRelPrintf("pb=%p pv=%p\n" "%.*Rhxd\n", pb, pv, PAGE_SIZE - ((uintptr_t)pb & PAGE_OFFSET_MASK), pb); } else RTLogRelPrintf("rc=%Vrc\n", rc); /* grub ... */ if (esp < 0x2000 && esp > 0x1fc0) { int rc = PGMPhysGCPtr2HCPtr(pVM, 0x8000, &pv); if (VBOX_SUCCESS(rc)) RTLogRelPrintf("0000:8000 TO 0000:87ff: pv=%p\n" "%.*Rhxd\n", pv, 0x8000, pv); } /* microsoft cdrom hang ... */ if (true) { int rc = PGMPhysGCPtr2HCPtr(pVM, 0x20000, &pv); if (VBOX_SUCCESS(rc)) RTLogRelPrintf("2000:0000 TO 2000:01ff: pv=%p\n" "%.*Rhxd\n", pv, 0x200, pv); } } #endif RTLogRelPrintf("************** End of Guest state at power off ***************\n"); } /* * Change the state to OFF and notify the components. */ vmR3SetState(pVM, VMSTATE_OFF); PDMR3PowerOff(pVM); return VINF_EM_OFF; } /** * Destroys the VM. * The VM must be powered off (or never really powered on) to call this function. * The VM handle is destroyed and can no longer be used up successful return. * * @returns 0 on success. * @returns VBox error code on failure. * @param pVM VM which should be destroyed. * @thread Any thread but the emulation thread. * @vmstate Off, Created * @vmstateto N/A */ VMR3DECL(int) VMR3Destroy(PVM pVM) { LogFlow(("VMR3Destroy: pVM=%p\n", pVM)); /* * Validate input. */ if (!pVM) return VERR_INVALID_PARAMETER; if ( pVM->enmVMState != VMSTATE_OFF && pVM->enmVMState != VMSTATE_CREATED) { AssertMsgFailed(("Invalid VM state %d\n", pVM->enmVMState)); return VERR_VM_INVALID_VM_STATE; } /* * Unlink the VM and change it's state to destroying. */ /** @todo lock this when we start having multiple machines in a process... */ PVM pPrev = NULL; PVM pCur = g_pVMsHead; while (pCur && pCur != pVM) { pPrev = pCur; pCur = pCur->pNext; } if (!pCur) { AssertMsgFailed(("pVM=%p is INVALID!\n", pVM)); return VERR_INVALID_PARAMETER; } if (pPrev) pPrev->pNext = pCur->pNext; else g_pVMsHead = pCur->pNext; vmR3SetState(pVM, VMSTATE_DESTROYING); /* * Notify registered at destruction listeners. * (That's the debugger console.) */ vmR3AtDtor(pVM); pVM->pNext = g_pVMsHead; g_pVMsHead = pVM; /* * If we are the EMT we'll delay the cleanup till later. */ if (VM_IS_EMT(pVM)) { pVM->vm.s.fEMTDoesTheCleanup = true; VM_FF_SET(pVM, VM_FF_TERMINATE); } else { /* * Request EMT to do the larger part of the destruction. */ PVMREQ pReq = NULL; int rc = VMR3ReqCall(pVM, &pReq, 0, (PFNRT)vmR3Destroy, 1, pVM); while (rc == VERR_TIMEOUT) rc = VMR3ReqWait(pReq, RT_INDEFINITE_WAIT); if (VBOX_SUCCESS(rc)) rc = pReq->iStatus; VMR3ReqFree(pReq); /* * Wait for the EMT thread to terminate. */ VM_FF_SET(pVM, VM_FF_TERMINATE); uint64_t u64Start = RTTimeMilliTS(); do { VMR3NotifyFF(pVM, false); rc = RTThreadWait(pVM->ThreadEMT, 1000, NULL); } while ( RTTimeMilliTS() - u64Start < 30000 /* 30 sec */ && rc == VERR_TIMEOUT); AssertMsgRC(rc, ("EMT thread wait failed, rc=%Vrc\n", rc)); /* * Now do the final bit where the heap and VM structures are freed up. */ vmR3DestroyFinalBit(pVM); } LogFlow(("VMR3Destroy: returns VINF_SUCCESS\n")); return VINF_SUCCESS; } /** * Internal destruction worker. This will do nearly all of the * job, including quitting the emulation thread. * * @returns VBox status. * @param pVM VM handle. */ DECLCALLBACK(int) vmR3Destroy(PVM pVM) { LogFlow(("vmR3Destroy: pVM=%p\n", pVM)); VM_ASSERT_EMT(pVM); /* * Dump statistics to the log. */ #if defined(VBOX_WITH_STATISTICS) || defined(LOG_ENABLED) RTLogFlags(NULL, "nodisabled nobuffered"); #endif #ifdef VBOX_WITH_STATISTICS STAMR3Dump(pVM, "*"); #else LogRel(("************************* Statistics *************************\n")); STAMR3DumpToReleaseLog(pVM, "*"); LogRel(("********************* End of statistics **********************\n")); #endif /* * Destroy the VM components. */ int rc = TMR3Term(pVM); AssertRC(rc); rc = DBGCTcpTerminate(pVM, pVM->vm.s.pvDBGC); pVM->vm.s.pvDBGC = NULL; AssertRC(rc); rc = DBGFR3Term(pVM); AssertRC(rc); rc = PDMR3Term(pVM); AssertRC(rc); rc = EMR3Term(pVM); AssertRC(rc); rc = IOMR3Term(pVM); AssertRC(rc); rc = CSAMR3Term(pVM); AssertRC(rc); rc = PATMR3Term(pVM); AssertRC(rc); rc = TRPMR3Term(pVM); AssertRC(rc); rc = SELMR3Term(pVM); AssertRC(rc); rc = REMR3Term(pVM); AssertRC(rc); rc = HWACCMR3Term(pVM); AssertRC(rc); rc = VMMR3Term(pVM); AssertRC(rc); rc = PGMR3Term(pVM); AssertRC(rc); rc = CPUMR3Term(pVM); AssertRC(rc); rc = STAMR3Term(pVM); AssertRC(rc); rc = PDMR3CritSectTerm(pVM); AssertRC(rc); /* MM is destroyed later in vmR3DestroyFinalBit() for heap reasons. */ /* * We're done in this thread. */ pVM->fForcedActions = VM_FF_TERMINATE; LogFlow(("vmR3Destroy: returning %Vrc\n", VINF_EM_TERMINATE)); return VINF_EM_TERMINATE; } /** * Does the final part of the VM destruction. * This is called by EMT in it's final stage or by the VMR3Destroy caller. * * @param pVM VM Handle. */ void vmR3DestroyFinalBit(PVM pVM) { /* * Free the event semaphores associated with the request packets.s */ unsigned cReqs = 0; for (unsigned i = 0; i < ELEMENTS(pVM->vm.s.apReqFree); i++) { PVMREQ pReq = pVM->vm.s.apReqFree[i]; pVM->vm.s.apReqFree[i] = NULL; for (; pReq; pReq = pReq->pNext, cReqs++) { pReq->enmState = VMREQSTATE_INVALID; RTSemEventDestroy(pReq->EventSem); } } Assert(cReqs == pVM->vm.s.cReqFree); NOREF(cReqs); /* * Kill all queued requests. (There really shouldn't be any!) */ for (unsigned i = 0; i < 10; i++) { PVMREQ pReqHead = (PVMREQ)ASMAtomicXchgPtr((void *volatile *)&pVM->vm.s.pReqs, NULL); AssertMsg(!pReqHead, ("This isn't supposed to happen! VMR3Destroy caller has to serialize this.\n")); if (!pReqHead) break; for (PVMREQ pReq = pReqHead; pReq; pReq = pReq->pNext) { ASMAtomicXchgSize(&pReq->iStatus, VERR_INTERNAL_ERROR); ASMAtomicXchgSize(&pReq->enmState, VMREQSTATE_INVALID); RTSemEventSignal(pReq->EventSem); RTThreadSleep(2); RTSemEventDestroy(pReq->EventSem); } /* give them a chance to respond before we free the request memory. */ RTThreadSleep(32); } /* * Modify state and then terminate MM. * (MM must be delayed until this point so we don't destroy the callbacks and the request packet.) */ vmR3SetState(pVM, VMSTATE_TERMINATED); int rc = MMR3Term(pVM); AssertRC(rc); /* * Free the VM structure. */ rc = SUPLowFree(pVM, RT_ALIGN_Z(sizeof(*pVM), PAGE_SIZE) >> PAGE_SHIFT); AssertRC(rc); rc = SUPTerm(); AssertRC(rc); RTLogFlush(NULL); } /** * Enumerates the VMs in this process. * * @returns Pointer to the next VM. * @returns NULL when no more VMs. * @param pVMPrev The previous VM * Use NULL to start the enumeration. */ VMR3DECL(PVM) VMR3EnumVMs(PVM pVMPrev) { /* * This is quick and dirty. It has issues with VM being * destroyed during the enumeration. */ if (pVMPrev) return pVMPrev->pNext; return g_pVMsHead; } /** * Registers an at VM destruction callback. * * @returns VBox status code. * @param pfnAtDtor Pointer to callback. * @param pvUser User argument. */ VMR3DECL(int) VMR3AtDtorRegister(PFNVMATDTOR pfnAtDtor, void *pvUser) { /* * Check if already registered. */ VM_ATDTOR_LOCK(); PVMATDTOR pCur = g_pVMAtDtorHead; while (pCur) { if (pfnAtDtor == pCur->pfnAtDtor) { VM_ATDTOR_UNLOCK(); AssertMsgFailed(("Already registered at destruction callback %p!\n", pfnAtDtor)); return VERR_INVALID_PARAMETER; } /* next */ pCur = pCur->pNext; } VM_ATDTOR_UNLOCK(); /* * Allocate new entry. */ PVMATDTOR pVMAtDtor = (PVMATDTOR)RTMemAlloc(sizeof(*pVMAtDtor)); if (!pVMAtDtor) return VERR_NO_MEMORY; VM_ATDTOR_LOCK(); pVMAtDtor->pfnAtDtor = pfnAtDtor; pVMAtDtor->pvUser = pvUser; pVMAtDtor->pNext = g_pVMAtDtorHead; g_pVMAtDtorHead = pVMAtDtor; VM_ATDTOR_UNLOCK(); return VINF_SUCCESS; } /** * Deregisters an at VM destruction callback. * * @returns VBox status code. * @param pfnAtDtor Pointer to callback. */ VMR3DECL(int) VMR3AtDtorDeregister(PFNVMATDTOR pfnAtDtor) { /* * Find it, unlink it and free it. */ VM_ATDTOR_LOCK(); PVMATDTOR pPrev = NULL; PVMATDTOR pCur = g_pVMAtDtorHead; while (pCur) { if (pfnAtDtor == pCur->pfnAtDtor) { if (pPrev) pPrev->pNext = pCur->pNext; else g_pVMAtDtorHead = pCur->pNext; pCur->pNext = NULL; VM_ATDTOR_UNLOCK(); RTMemFree(pCur); return VINF_SUCCESS; } /* next */ pPrev = pCur; pCur = pCur->pNext; } VM_ATDTOR_UNLOCK(); return VERR_INVALID_PARAMETER; } /** * Walks the list of at VM destructor callbacks. * @param pVM The VM which is about to be destroyed. */ static void vmR3AtDtor(PVM pVM) { /* * Find it, unlink it and free it. */ VM_ATDTOR_LOCK(); for (PVMATDTOR pCur = g_pVMAtDtorHead; pCur; pCur = pCur->pNext) pCur->pfnAtDtor(pVM, pCur->pvUser); VM_ATDTOR_UNLOCK(); } /** * Reset the current VM. * * @returns VBox status code. * @param pVM VM to reset. */ VMR3DECL(int) VMR3Reset(PVM pVM) { int rc = VINF_SUCCESS; /* * Check the state. */ if (!pVM) return VERR_INVALID_PARAMETER; if ( pVM->enmVMState != VMSTATE_RUNNING && pVM->enmVMState != VMSTATE_SUSPENDED) { AssertMsgFailed(("Invalid VM state %d\n", pVM->enmVMState)); return VERR_VM_INVALID_VM_STATE; } /* * Queue reset request to the emulation thread * and wait for it to be processed. */ PVMREQ pReq = NULL; rc = VMR3ReqCall(pVM, &pReq, 0, (PFNRT)vmR3Reset, 1, pVM); while (rc == VERR_TIMEOUT) rc = VMR3ReqWait(pReq, RT_INDEFINITE_WAIT); if (VBOX_SUCCESS(rc)) rc = pReq->iStatus; VMR3ReqFree(pReq); return rc; } /** * Worker which checks integrity of some internal structures. * This is yet another attempt to track down that AVL tree crash. */ static void vmR3CheckIntegrity(PVM pVM) { #ifdef VBOX_STRICT int rc = PGMR3CheckIntegrity(pVM); AssertReleaseRC(rc); #endif } /** * Reset request processor. * * This is called by the emulation thread as a response to the * reset request issued by VMR3Reset(). * * @returns VBox status code. * @param pVM VM to reset. */ static DECLCALLBACK(int) vmR3Reset(PVM pVM) { /* * As a safety precaution we temporarily change the state while resetting. * (If VMR3Reset was not called from EMT we might have change state... let's ignore that fact for now.) */ VMSTATE enmVMState = pVM->enmVMState; Assert(enmVMState == VMSTATE_SUSPENDED || enmVMState == VMSTATE_RUNNING); vmR3SetState(pVM, VMSTATE_RESETTING); vmR3CheckIntegrity(pVM); /* * Reset the VM components. */ PATMR3Reset(pVM); CSAMR3Reset(pVM); PGMR3Reset(pVM); /* We clear VM RAM in PGMR3Reset. It's vital PDMR3Reset is executed * _afterwards_. E.g. ACPI sets up RAM tables during init/reset. */ PDMR3Reset(pVM); SELMR3Reset(pVM); TRPMR3Reset(pVM); vmR3AtReset(pVM); REMR3Reset(pVM); IOMR3Reset(pVM); CPUMR3Reset(pVM); TMR3Reset(pVM); EMR3Reset(pVM); HWACCMR3Reset(pVM); /* This must come *after* PATM, CSAM, CPUM, SELM and TRPM. */ #ifdef LOG_ENABLED /* * Debug logging. */ RTLogPrintf("\n\nThe VM was reset:\n"); DBGFR3Info(pVM, "cpum", "verbose", NULL); #endif /* * Restore the state. */ vmR3CheckIntegrity(pVM); Assert(pVM->enmVMState == VMSTATE_RESETTING); vmR3SetState(pVM, enmVMState); return VINF_EM_RESET; } /** * Walks the list of at VM reset callbacks and calls them * * @returns VBox status code. * Any failure is fatal. * @param pVM The VM which is being reset. */ static int vmR3AtReset(PVM pVM) { /* * Walk the list and call them all. */ int rc = VINF_SUCCESS; for (PVMATRESET pCur = pVM->vm.s.pAtReset; pCur; pCur = pCur->pNext) { /* do the call */ switch (pCur->enmType) { case VMATRESETTYPE_DEV: rc = pCur->u.Dev.pfnCallback(pCur->u.Dev.pDevIns, pCur->pvUser); break; case VMATRESETTYPE_INTERNAL: rc = pCur->u.Internal.pfnCallback(pVM, pCur->pvUser); break; case VMATRESETTYPE_EXTERNAL: pCur->u.External.pfnCallback(pCur->pvUser); break; default: AssertMsgFailed(("Invalid at-reset type %d!\n", pCur->enmType)); return VERR_INTERNAL_ERROR; } if (VBOX_FAILURE(rc)) { AssertMsgFailed(("At-reset handler %s failed with rc=%d\n", pCur->pszDesc, rc)); return rc; } } return VINF_SUCCESS; } /** * Internal registration function */ static int vmr3AtResetRegister(PVM pVM, void *pvUser, const char *pszDesc, PVMATRESET *ppNew) { /* * Allocate restration structure. */ PVMATRESET pNew = (PVMATRESET)MMR3HeapAlloc(pVM, MM_TAG_VM, sizeof(*pNew)); if (pNew) { /* fill data. */ pNew->pNext = NULL; pNew->pszDesc = pszDesc; pNew->pvUser = pvUser; /* insert */ *pVM->vm.s.ppAtResetNext = pNew; pVM->vm.s.ppAtResetNext = &pNew->pNext; return VINF_SUCCESS; } return VERR_NO_MEMORY; } /** * Registers an at VM reset callback. * * @returns VBox status code. * @param pVM The VM. * @param pDevInst Device instance. * @param pfnCallback Callback function. * @param pvUser User argument. * @param pszDesc Description (optional). */ VMR3DECL(int) VMR3AtResetRegister(PVM pVM, PPDMDEVINS pDevInst, PFNVMATRESET pfnCallback, void *pvUser, const char *pszDesc) { /* * Validate. */ if (!pDevInst) { AssertMsgFailed(("pDevIns is NULL!\n")); return VERR_INVALID_PARAMETER; } /* * Create the new entry. */ PVMATRESET pNew; int rc = vmr3AtResetRegister(pVM, pvUser, pszDesc, &pNew); if (VBOX_SUCCESS(rc)) { /* * Fill in type data. */ pNew->enmType = VMATRESETTYPE_DEV; pNew->u.Dev.pfnCallback = pfnCallback; pNew->u.Dev.pDevIns = pDevInst; } return rc; } /** * Registers an at VM reset internal callback. * * @returns VBox status code. * @param pVM The VM. * @param pfnCallback Callback function. * @param pvUser User argument. * @param pszDesc Description (optional). */ VMR3DECL(int) VMR3AtResetRegisterInternal(PVM pVM, PFNVMATRESETINT pfnCallback, void *pvUser, const char *pszDesc) { /* * Validate. */ if (!pfnCallback) { AssertMsgFailed(("pfnCallback is NULL!\n")); return VERR_INVALID_PARAMETER; } /* * Create the new entry. */ PVMATRESET pNew; int rc = vmr3AtResetRegister(pVM, pvUser, pszDesc, &pNew); if (VBOX_SUCCESS(rc)) { /* * Fill in type data. */ pNew->enmType = VMATRESETTYPE_INTERNAL; pNew->u.Internal.pfnCallback = pfnCallback; } return rc; } /** * Registers an at VM reset external callback. * * @returns VBox status code. * @param pVM The VM. * @param pfnCallback Callback function. * @param pvUser User argument. * @param pszDesc Description (optional). */ VMR3DECL(int) VMR3AtResetRegisterExternal(PVM pVM, PFNVMATRESETEXT pfnCallback, void *pvUser, const char *pszDesc) { /* * Validate. */ if (!pfnCallback) { AssertMsgFailed(("pfnCallback is NULL!\n")); return VERR_INVALID_PARAMETER; } /* * Create the new entry. */ PVMATRESET pNew; int rc = vmr3AtResetRegister(pVM, pvUser, pszDesc, &pNew); if (VBOX_SUCCESS(rc)) { /* * Fill in type data. */ pNew->enmType = VMATRESETTYPE_EXTERNAL; pNew->u.External.pfnCallback = pfnCallback; } return rc; } /** * Unlinks and frees a callback. * * @returns Pointer to the next callback structure. * @param pVM The VM. * @param pCur The one to free. * @param pPrev The one before pCur. */ static PVMATRESET vmr3AtResetFree(PVM pVM, PVMATRESET pCur, PVMATRESET pPrev) { /* * Unlink it. */ PVMATRESET pNext = pCur->pNext; if (pPrev) { pPrev->pNext = pNext; if (!pNext) pVM->vm.s.ppAtResetNext = &pPrev->pNext; } else { pVM->vm.s.pAtReset = pNext; if (!pNext) pVM->vm.s.ppAtResetNext = &pVM->vm.s.pAtReset; } /* * Free it. */ MMR3HeapFree(pCur); return pNext; } /** * Deregisters an at VM reset callback. * * @returns VBox status code. * @param pVM The VM. * @param pDevInst Device instance. * @param pfnCallback Callback function. */ VMR3DECL(int) VMR3AtResetDeregister(PVM pVM, PPDMDEVINS pDevInst, PFNVMATRESET pfnCallback) { int rc = VERR_VM_ATRESET_NOT_FOUND; PVMATRESET pPrev = NULL; PVMATRESET pCur = pVM->vm.s.pAtReset; while (pCur) { if ( pCur->enmType == VMATRESETTYPE_DEV && pCur->u.Dev.pDevIns == pDevInst && (!pfnCallback || pCur->u.Dev.pfnCallback == pfnCallback)) { pCur = vmr3AtResetFree(pVM, pCur, pPrev); rc = VINF_SUCCESS; } else { pPrev = pCur; pCur = pCur->pNext; } } AssertRC(rc); return rc; } /** * Deregisters an at VM reset internal callback. * * @returns VBox status code. * @param pVM The VM. * @param pfnCallback Callback function. */ VMR3DECL(int) VMR3AtResetDeregisterInternal(PVM pVM, PFNVMATRESETINT pfnCallback) { int rc = VERR_VM_ATRESET_NOT_FOUND; PVMATRESET pPrev = NULL; PVMATRESET pCur = pVM->vm.s.pAtReset; while (pCur) { if ( pCur->enmType == VMATRESETTYPE_INTERNAL && pCur->u.Internal.pfnCallback == pfnCallback) { pCur = vmr3AtResetFree(pVM, pCur, pPrev); rc = VINF_SUCCESS; } else { pPrev = pCur; pCur = pCur->pNext; } } AssertRC(rc); return rc; } /** * Deregisters an at VM reset external callback. * * @returns VBox status code. * @param pVM The VM. * @param pfnCallback Callback function. */ VMR3DECL(int) VMR3AtResetDeregisterExternal(PVM pVM, PFNVMATRESETEXT pfnCallback) { int rc = VERR_VM_ATRESET_NOT_FOUND; PVMATRESET pPrev = NULL; PVMATRESET pCur = pVM->vm.s.pAtReset; while (pCur) { if ( pCur->enmType == VMATRESETTYPE_INTERNAL && pCur->u.External.pfnCallback == pfnCallback) { pCur = vmr3AtResetFree(pVM, pCur, pPrev); rc = VINF_SUCCESS; } else { pPrev = pCur; pCur = pCur->pNext; } } AssertRC(rc); return rc; } /** * Gets the current VM state. * * @returns The current VM state. * @param pVM VM handle. * @thread Any */ VMR3DECL(VMSTATE) VMR3GetState(PVM pVM) { return pVM->enmVMState; } /** * Gets the state name string for a VM state. * * @returns Pointer to the state name. (readonly) * @param enmState The state. */ VMR3DECL(const char *) VMR3GetStateName(VMSTATE enmState) { switch (enmState) { case VMSTATE_CREATING: return "CREATING"; case VMSTATE_CREATED: return "CREATED"; case VMSTATE_RUNNING: return "RUNNING"; case VMSTATE_LOADING: return "LOADING"; case VMSTATE_LOAD_FAILURE: return "LOAD_FAILURE"; case VMSTATE_SAVING: return "SAVING"; case VMSTATE_SUSPENDED: return "SUSPENDED"; case VMSTATE_RESETTING: return "RESETTING"; case VMSTATE_GURU_MEDITATION: return "GURU_MEDIATION"; case VMSTATE_OFF: return "OFF"; case VMSTATE_DESTROYING: return "DESTROYING"; case VMSTATE_TERMINATED: return "TERMINATED"; default: AssertMsgFailed(("Unknown state %d\n", enmState)); return "Unknown!\n"; } } /** * Sets the current VM state. * * @returns The current VM state. * @param pVM VM handle. * @param enmStateNew The new state. */ static void vmR3SetState(PVM pVM, VMSTATE enmStateNew) { VMSTATE enmStateOld = pVM->enmVMState; pVM->enmVMState = enmStateNew; LogRel(("Changing the VM state from '%s' to '%s'.\n", VMR3GetStateName(enmStateOld), VMR3GetStateName(enmStateNew))); /* * Call the at state change callbacks. */ for (PVMATSTATE pCur = pVM->vm.s.pAtState; pCur; pCur = pCur->pNext) { pCur->pfnAtState(pVM, enmStateNew, enmStateOld, pCur->pvUser); if (pVM->enmVMState == VMSTATE_DESTROYING) break; AssertMsg(pVM->enmVMState == enmStateNew, ("You are not allowed to change the state while in the change callback, except " "from destroying the VM. There are restrictions in the way the state changes " "are propagated up to the EM execution loop and it makes the program flow very " "difficult to follow.\n")); } } /** * Registers a VM state change callback. * * You are not allowed to call any function which changes the VM state from a * state callback, except VMR3Destroy(). * * @returns VBox status code. * @param pVM VM handle. * @param pfnAtState Pointer to callback. * @param pvUser User argument. * @thread Any. */ VMR3DECL(int) VMR3AtStateRegister(PVM pVM, PFNVMATSTATE pfnAtState, void *pvUser) { LogFlow(("VMR3AtStateRegister: pfnAtState=%p pvUser=%p\n", pfnAtState, pvUser)); /* * Validate input. */ if (!pfnAtState) { AssertMsgFailed(("callback is required\n")); return VERR_INVALID_PARAMETER; } /* * Make sure we're in EMT (to avoid the logging). */ PVMREQ pReq; int rc = VMR3ReqCall(pVM, &pReq, RT_INDEFINITE_WAIT, (PFNRT)vmR3AtStateRegister, 3, pVM, pfnAtState, pvUser); if (VBOX_FAILURE(rc)) return rc; rc = pReq->iStatus; VMR3ReqFree(pReq); LogFlow(("VMR3AtStateRegister: returns %Vrc\n", rc)); return rc; } /** * Registers a VM state change callback. * * @returns VBox status code. * @param pVM VM handle. * @param pfnAtState Pointer to callback. * @param pvUser User argument. * @thread EMT */ static DECLCALLBACK(int) vmR3AtStateRegister(PVM pVM, PFNVMATSTATE pfnAtState, void *pvUser) { /* * Allocate a new record. */ PVMATSTATE pNew = (PVMATSTATE)MMR3HeapAlloc(pVM, MM_TAG_VM, sizeof(*pNew)); if (!pNew) return VERR_NO_MEMORY; /* fill */ pNew->pfnAtState = pfnAtState; pNew->pvUser = pvUser; pNew->pNext = NULL; /* insert */ *pVM->vm.s.ppAtStateNext = pNew; pVM->vm.s.ppAtStateNext = &pNew->pNext; return VINF_SUCCESS; } /** * Deregisters a VM state change callback. * * @returns VBox status code. * @param pVM VM handle. * @param pfnAtState Pointer to callback. * @param pvUser User argument. * @thread Any. */ VMR3DECL(int) VMR3AtStateDeregister(PVM pVM, PFNVMATSTATE pfnAtState, void *pvUser) { LogFlow(("VMR3AtStateDeregister: pfnAtState=%p pvUser=%p\n", pfnAtState, pvUser)); /* * Validate input. */ if (!pfnAtState) { AssertMsgFailed(("callback is required\n")); return VERR_INVALID_PARAMETER; } /* * Make sure we're in EMT (to avoid the logging). */ PVMREQ pReq; int rc = VMR3ReqCall(pVM, &pReq, RT_INDEFINITE_WAIT, (PFNRT)vmR3AtStateDeregister, 3, pVM, pfnAtState, pvUser); if (VBOX_FAILURE(rc)) return rc; rc = pReq->iStatus; VMR3ReqFree(pReq); LogFlow(("VMR3AtStateDeregister: returns %Vrc\n", rc)); return rc; } /** * Deregisters a VM state change callback. * * @returns VBox status code. * @param pVM VM handle. * @param pfnAtState Pointer to callback. * @param pvUser User argument. * @thread EMT */ static DECLCALLBACK(int) vmR3AtStateDeregister(PVM pVM, PFNVMATSTATE pfnAtState, void *pvUser) { LogFlow(("vmR3AtStateDeregister: pfnAtState=%p pvUser=%p\n", pfnAtState, pvUser)); /* * Search the list for the entry. */ PVMATSTATE pPrev = NULL; PVMATSTATE pCur = pVM->vm.s.pAtState; while ( pCur && pCur->pfnAtState == pfnAtState && pCur->pvUser == pvUser) { pPrev = pCur; pCur = pCur->pNext; } if (!pCur) { AssertMsgFailed(("pfnAtState=%p was not found\n", pfnAtState)); return VERR_FILE_NOT_FOUND; } /* * Unlink it. */ if (pPrev) { pPrev->pNext = pCur->pNext; if (!pCur->pNext) pVM->vm.s.ppAtStateNext = &pPrev->pNext; } else { pVM->vm.s.pAtState = pCur->pNext; if (!pCur->pNext) pVM->vm.s.ppAtStateNext = &pVM->vm.s.pAtState; } /* * Free it. */ pCur->pfnAtState = NULL; pCur->pNext = NULL; MMR3HeapFree(pCur); return VINF_SUCCESS; } /** * Registers a VM error callback. * * @returns VBox status code. * @param pVM The VM handle. * @param pfnAtError Pointer to callback. * @param pvUser User argument. * @thread Any. */ VMR3DECL(int) VMR3AtErrorRegister(PVM pVM, PFNVMATERROR pfnAtError, void *pvUser) { LogFlow(("VMR3AtErrorRegister: pfnAtError=%p pvUser=%p\n", pfnAtError, pvUser)); /* * Validate input. */ if (!pfnAtError) { AssertMsgFailed(("callback is required\n")); return VERR_INVALID_PARAMETER; } /* * Make sure we're in EMT (to avoid the logging). */ PVMREQ pReq; int rc = VMR3ReqCall(pVM, &pReq, RT_INDEFINITE_WAIT, (PFNRT)vmR3AtErrorRegister, 3, pVM, pfnAtError, pvUser); if (VBOX_FAILURE(rc)) return rc; rc = pReq->iStatus; VMR3ReqFree(pReq); LogFlow(("VMR3AtErrorRegister: returns %Vrc\n", rc)); return rc; } /** * Registers a VM error callback. * * @returns VBox status code. * @param pVM The VM handle. * @param pfnAtError Pointer to callback. * @param pvUser User argument. * @thread EMT */ static DECLCALLBACK(int) vmR3AtErrorRegister(PVM pVM, PFNVMATERROR pfnAtError, void *pvUser) { /* * Allocate a new record. */ PVMATERROR pNew = (PVMATERROR)MMR3HeapAlloc(pVM, MM_TAG_VM, sizeof(*pNew)); if (!pNew) return VERR_NO_MEMORY; /* fill */ pNew->pfnAtError = pfnAtError; pNew->pvUser = pvUser; pNew->pNext = NULL; /* insert */ *pVM->vm.s.ppAtErrorNext = pNew; pVM->vm.s.ppAtErrorNext = &pNew->pNext; return VINF_SUCCESS; } /** * Deregisters a VM error callback. * * @returns VBox status code. * @param pVM The VM handle. * @param pfnAtError Pointer to callback. * @param pvUser User argument. * @thread Any. */ VMR3DECL(int) VMR3AtErrorDeregister(PVM pVM, PFNVMATERROR pfnAtError, void *pvUser) { LogFlow(("VMR3AtErrorDeregister: pfnAtError=%p pvUser=%p\n", pfnAtError, pvUser)); /* * Validate input. */ if (!pfnAtError) { AssertMsgFailed(("callback is required\n")); return VERR_INVALID_PARAMETER; } /* * Make sure we're in EMT (to avoid the logging). */ PVMREQ pReq; int rc = VMR3ReqCall(pVM, &pReq, RT_INDEFINITE_WAIT, (PFNRT)vmR3AtErrorDeregister, 3, pVM, pfnAtError, pvUser); if (VBOX_FAILURE(rc)) return rc; rc = pReq->iStatus; VMR3ReqFree(pReq); LogFlow(("VMR3AtErrorDeregister: returns %Vrc\n", rc)); return rc; } /** * Deregisters a VM error callback. * * @returns VBox status code. * @param pVM The VM handle. * @param pfnAtError Pointer to callback. * @param pvUser User argument. * @thread EMT */ static DECLCALLBACK(int) vmR3AtErrorDeregister(PVM pVM, PFNVMATERROR pfnAtError, void *pvUser) { LogFlow(("vmR3AtErrorDeregister: pfnAtError=%p pvUser=%p\n", pfnAtError, pvUser)); /* * Search the list for the entry. */ PVMATERROR pPrev = NULL; PVMATERROR pCur = pVM->vm.s.pAtError; while ( pCur && pCur->pfnAtError == pfnAtError && pCur->pvUser == pvUser) { pPrev = pCur; pCur = pCur->pNext; } if (!pCur) { AssertMsgFailed(("pfnAtError=%p was not found\n", pfnAtError)); return VERR_FILE_NOT_FOUND; } /* * Unlink it. */ if (pPrev) { pPrev->pNext = pCur->pNext; if (!pCur->pNext) pVM->vm.s.ppAtErrorNext = &pPrev->pNext; } else { pVM->vm.s.pAtError = pCur->pNext; if (!pCur->pNext) pVM->vm.s.ppAtErrorNext = &pVM->vm.s.pAtError; } /* * Free it. */ pCur->pfnAtError = NULL; pCur->pNext = NULL; MMR3HeapFree(pCur); return VINF_SUCCESS; } /** * Ellipsis to va_list wrapper for calling pfnAtError. */ static void vmR3SetErrorWorkerDoCall(PVM pVM, PVMATERROR pCur, int rc, RT_SRC_POS_DECL, const char *pszFormat, ...) { va_list va; va_start(va, pszFormat); pCur->pfnAtError(pVM, pCur->pvUser, rc, RT_SRC_POS_ARGS, pszFormat, va); va_end(va); } /** * This is a worker function for GC and Ring-0 calls to VMSetError and VMSetErrorV. * The message is found in VMINT. * * @param pVM The VM handle. * @thread EMT. */ VMR3DECL(void) VMR3SetErrorWorker(PVM pVM) { VM_ASSERT_EMT(pVM); AssertReleaseMsgFailed(("And we have a winner! You get to implement Ring-0 and GC VMSetErrorV! Contrats!\n")); /* * Unpack the error (if we managed to format one). */ PVMERROR pErr = pVM->vm.s.pErrorR3; const char *pszFile = NULL; const char *pszFunction = NULL; uint32_t iLine = 0; const char *pszMessage; int32_t rc = VERR_MM_HYPER_NO_MEMORY; if (pErr) { AssertCompile(sizeof(const char) == sizeof(uint8_t)); if (pErr->offFile) pszFile = (const char *)pErr + pErr->offFile; iLine = pErr->iLine; if (pErr->offFunction) pszFunction = (const char *)pErr + pErr->offFunction; if (pErr->offMessage) pszMessage = (const char *)pErr + pErr->offMessage; else pszMessage = "No message!"; } else pszMessage = "No message! (Failed to allocate memory to put the error message in!)"; /* * Call the at error callbacks. */ for (PVMATERROR pCur = pVM->vm.s.pAtError; pCur; pCur = pCur->pNext) vmR3SetErrorWorkerDoCall(pVM, pCur, rc, RT_SRC_POS_ARGS, "%s", pszMessage); } /** * Worker which calls everyone listening to the VM error messages. * * @param pVM The VM handle. * @param rc The VBox status code. * @param RT_SRC_POS_DECL The source position of this error. * @param pszFormat Format string. * @param pArgs Pointer to the format arguments. * @thread EMT */ DECLCALLBACK(void) vmR3SetErrorV(PVM pVM, int rc, RT_SRC_POS_DECL, const char *pszFormat, va_list *pArgs) { #ifdef LOG_ENABLED /* * Log the error. */ RTLogPrintf("VMSetError: %s(%d) %s\n", pszFile, iLine, pszFunction); va_list va3; va_copy(va3, *pArgs); RTLogPrintfV(pszFormat, va3); va_end(va3); #endif /* * Make a copy of the message. */ vmSetErrorCopy(pVM, rc, RT_SRC_POS_ARGS, pszFormat, *pArgs); /* * Call the at error callbacks. */ for (PVMATERROR pCur = pVM->vm.s.pAtError; pCur; pCur = pCur->pNext) { va_list va2; va_copy(va2, *pArgs); pCur->pfnAtError(pVM, pCur->pvUser, rc, RT_SRC_POS_ARGS, pszFormat, va2); va_end(va2); } } /** * Registers a VM runtime error callback. * * @returns VBox status code. * @param pVM The VM handle. * @param pfnAtRuntimeError Pointer to callback. * @param pvUser User argument. * @thread Any. */ VMR3DECL(int) VMR3AtRuntimeErrorRegister(PVM pVM, PFNVMATRUNTIMEERROR pfnAtRuntimeError, void *pvUser) { LogFlow(("VMR3AtRuntimeErrorRegister: pfnAtRuntimeError=%p pvUser=%p\n", pfnAtRuntimeError, pvUser)); /* * Validate input. */ if (!pfnAtRuntimeError) { AssertMsgFailed(("callback is required\n")); return VERR_INVALID_PARAMETER; } /* * Make sure we're in EMT (to avoid the logging). */ PVMREQ pReq; int rc = VMR3ReqCall(pVM, &pReq, RT_INDEFINITE_WAIT, (PFNRT)vmR3AtRuntimeErrorRegister, 3, pVM, pfnAtRuntimeError, pvUser); if (VBOX_FAILURE(rc)) return rc; rc = pReq->iStatus; VMR3ReqFree(pReq); LogFlow(("VMR3AtRuntimeErrorRegister: returns %Vrc\n", rc)); return rc; } /** * Registers a VM runtime error callback. * * @returns VBox status code. * @param pVM The VM handle. * @param pfnAtRuntimeError Pointer to callback. * @param pvUser User argument. * @thread EMT */ static DECLCALLBACK(int) vmR3AtRuntimeErrorRegister(PVM pVM, PFNVMATRUNTIMEERROR pfnAtRuntimeError, void *pvUser) { /* * Allocate a new record. */ PVMATRUNTIMEERROR pNew = (PVMATRUNTIMEERROR)MMR3HeapAlloc(pVM, MM_TAG_VM, sizeof(*pNew)); if (!pNew) return VERR_NO_MEMORY; /* fill */ pNew->pfnAtRuntimeError = pfnAtRuntimeError; pNew->pvUser = pvUser; pNew->pNext = NULL; /* insert */ *pVM->vm.s.ppAtRuntimeErrorNext = pNew; pVM->vm.s.ppAtRuntimeErrorNext = &pNew->pNext; return VINF_SUCCESS; } /** * Deregisters a VM runtime error callback. * * @returns VBox status code. * @param pVM The VM handle. * @param pfnAtRuntimeError Pointer to callback. * @param pvUser User argument. * @thread Any. */ VMR3DECL(int) VMR3AtRuntimeErrorDeregister(PVM pVM, PFNVMATRUNTIMEERROR pfnAtRuntimeError, void *pvUser) { LogFlow(("VMR3AtRuntimeErrorDeregister: pfnAtRuntimeError=%p pvUser=%p\n", pfnAtRuntimeError, pvUser)); /* * Validate input. */ if (!pfnAtRuntimeError) { AssertMsgFailed(("callback is required\n")); return VERR_INVALID_PARAMETER; } /* * Make sure we're in EMT (to avoid the logging). */ PVMREQ pReq; int rc = VMR3ReqCall(pVM, &pReq, RT_INDEFINITE_WAIT, (PFNRT)vmR3AtRuntimeErrorDeregister, 3, pVM, pfnAtRuntimeError, pvUser); if (VBOX_FAILURE(rc)) return rc; rc = pReq->iStatus; VMR3ReqFree(pReq); LogFlow(("VMR3AtRuntimeErrorDeregister: returns %Vrc\n", rc)); return rc; } /** * Deregisters a VM runtime error callback. * * @returns VBox status code. * @param pVM The VM handle. * @param pfnAtRuntimeError Pointer to callback. * @param pvUser User argument. * @thread EMT */ static DECLCALLBACK(int) vmR3AtRuntimeErrorDeregister(PVM pVM, PFNVMATRUNTIMEERROR pfnAtRuntimeError, void *pvUser) { LogFlow(("vmR3AtRuntimeErrorDeregister: pfnAtRuntimeError=%p pvUser=%p\n", pfnAtRuntimeError, pvUser)); /* * Search the list for the entry. */ PVMATRUNTIMEERROR pPrev = NULL; PVMATRUNTIMEERROR pCur = pVM->vm.s.pAtRuntimeError; while ( pCur && pCur->pfnAtRuntimeError == pfnAtRuntimeError && pCur->pvUser == pvUser) { pPrev = pCur; pCur = pCur->pNext; } if (!pCur) { AssertMsgFailed(("pfnAtRuntimeError=%p was not found\n", pfnAtRuntimeError)); return VERR_FILE_NOT_FOUND; } /* * Unlink it. */ if (pPrev) { pPrev->pNext = pCur->pNext; if (!pCur->pNext) pVM->vm.s.ppAtRuntimeErrorNext = &pPrev->pNext; } else { pVM->vm.s.pAtRuntimeError = pCur->pNext; if (!pCur->pNext) pVM->vm.s.ppAtRuntimeErrorNext = &pVM->vm.s.pAtRuntimeError; } /* * Free it. */ pCur->pfnAtRuntimeError = NULL; pCur->pNext = NULL; MMR3HeapFree(pCur); return VINF_SUCCESS; } /** * Ellipsis to va_list wrapper for calling pfnAtRuntimeError. */ static void vmR3SetRuntimeErrorWorkerDoCall(PVM pVM, PVMATRUNTIMEERROR pCur, bool fFatal, const char *pszErrorID, const char *pszFormat, ...) { va_list va; va_start(va, pszFormat); pCur->pfnAtRuntimeError(pVM, pCur->pvUser, fFatal, pszErrorID, pszFormat, va); va_end(va); } /** * This is a worker function for GC and Ring-0 calls to VMSetError and VMSetErrorV. * The message is found in VMINT. * * @param pVM The VM handle. * @thread EMT. */ VMR3DECL(void) VMR3SetRuntimeErrorWorker(PVM pVM) { VM_ASSERT_EMT(pVM); AssertReleaseMsgFailed(("And we have a winner! You get to implement Ring-0 and GC VMSetRuntimeErrorV! Contrats!\n")); /* * Unpack the error (if we managed to format one). */ PVMRUNTIMEERROR pErr = pVM->vm.s.pRuntimeErrorR3; const char *pszErrorID = NULL; const char *pszMessage; bool fFatal = false; if (pErr) { AssertCompile(sizeof(const char) == sizeof(uint8_t)); if (pErr->offErrorID) pszErrorID = (const char *)pErr + pErr->offErrorID; if (pErr->offMessage) pszMessage = (const char *)pErr + pErr->offMessage; else pszMessage = "No message!"; fFatal = pErr->fFatal; } else pszMessage = "No message! (Failed to allocate memory to put the error message in!)"; /* * Call the at runtime error callbacks. */ for (PVMATRUNTIMEERROR pCur = pVM->vm.s.pAtRuntimeError; pCur; pCur = pCur->pNext) vmR3SetRuntimeErrorWorkerDoCall(pVM, pCur, fFatal, pszErrorID, "%s", pszMessage); } /** * Worker which calls everyone listening to the VM runtime error messages. * * @param pVM The VM handle. * @param fFatal Whether it is a fatal error or not. * @param pszErrorID Error ID string. * @param pszFormat Format string. * @param pArgs Pointer to the format arguments. * @thread EMT */ DECLCALLBACK(void) vmR3SetRuntimeErrorV(PVM pVM, bool fFatal, const char *pszErrorID, const char *pszFormat, va_list *pArgs) { /* * Make a copy of the message. */ vmSetRuntimeErrorCopy(pVM, fFatal, pszErrorID, pszFormat, *pArgs); /* * Call the at error callbacks. */ for (PVMATRUNTIMEERROR pCur = pVM->vm.s.pAtRuntimeError; pCur; pCur = pCur->pNext) { va_list va2; va_copy(va2, *pArgs); pCur->pfnAtRuntimeError(pVM, pCur->pvUser, fFatal, pszErrorID, pszFormat, va2); va_end(va2); } }