/* $Id: VMM.cpp 14683 2008-11-27 02:09:19Z vboxsync $ */ /** @file * VMM - The Virtual Machine Monitor Core. */ /* * Copyright (C) 2006-2007 Sun Microsystems, Inc. * * 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 (GPL) 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. * * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa * Clara, CA 95054 USA or visit http://www.sun.com if you need * additional information or have any questions. */ //#define NO_SUPCALLR0VMM /** @page pg_vmm VMM - The Virtual Machine Monitor * * The VMM component is two things at the moment, it's a component doing a few * management and routing tasks, and it's the whole virtual machine monitor * thing. For hysterical reasons, it is not doing all the management that one * would expect, this is instead done by @ref pg_vm. We'll address this * misdesign eventually. * * @see grp_vmm, grp_vm * * * @section sec_vmmstate VMM State * * @image html VM_Statechart_Diagram.gif * * To be written. * * * @subsection subsec_vmm_init VMM Initialization * * To be written. * * * @subsection subsec_vmm_term VMM Termination * * To be written. * */ /******************************************************************************* * Header Files * *******************************************************************************/ #define LOG_GROUP LOG_GROUP_VMM #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "VMMInternal.h" #include "VMMSwitcher/VMMSwitcher.h" #include #include #include #include #include #include #include #include #include #include #include #include #include #include /** The saved state version. */ #define VMM_SAVED_STATE_VERSION 3 /******************************************************************************* * Internal Functions * *******************************************************************************/ static int vmmR3InitStacks(PVM pVM); static int vmmR3InitLoggers(PVM pVM); static void vmmR3InitRegisterStats(PVM pVM); static DECLCALLBACK(int) vmmR3Save(PVM pVM, PSSMHANDLE pSSM); static DECLCALLBACK(int) vmmR3Load(PVM pVM, PSSMHANDLE pSSM, uint32_t u32Version); static DECLCALLBACK(void) vmmR3YieldEMT(PVM pVM, PTMTIMER pTimer, void *pvUser); static int vmmR3ServiceCallHostRequest(PVM pVM); static DECLCALLBACK(void) vmmR3InfoFF(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs); /** * Initializes the VMM. * * @returns VBox status code. * @param pVM The VM to operate on. */ VMMR3DECL(int) VMMR3Init(PVM pVM) { LogFlow(("VMMR3Init\n")); /* * Assert alignment, sizes and order. */ AssertMsg(pVM->vmm.s.offVM == 0, ("Already initialized!\n")); AssertMsg(sizeof(pVM->vmm.padding) >= sizeof(pVM->vmm.s), ("pVM->vmm.padding is too small! vmm.padding %d while vmm.s is %d\n", sizeof(pVM->vmm.padding), sizeof(pVM->vmm.s))); /* * Init basic VM VMM members. */ pVM->vmm.s.offVM = RT_OFFSETOF(VM, vmm); int rc = CFGMR3QueryU32(CFGMR3GetRoot(pVM), "YieldEMTInterval", &pVM->vmm.s.cYieldEveryMillies); if (rc == VERR_CFGM_VALUE_NOT_FOUND) pVM->vmm.s.cYieldEveryMillies = 23; /* Value arrived at after experimenting with the grub boot prompt. */ //pVM->vmm.s.cYieldEveryMillies = 8; //debugging else AssertMsgRCReturn(rc, ("Configuration error. Failed to query \"YieldEMTInterval\", rc=%Rrc\n", rc), rc); /* GC switchers are enabled by default. Turned off by HWACCM. */ pVM->vmm.s.fSwitcherDisabled = false; /* * Register the saved state data unit. */ rc = SSMR3RegisterInternal(pVM, "vmm", 1, VMM_SAVED_STATE_VERSION, VMM_STACK_SIZE + sizeof(RTGCPTR), NULL, vmmR3Save, NULL, NULL, vmmR3Load, NULL); if (RT_FAILURE(rc)) return rc; /* * Register the Ring-0 VM handle with the session for fast ioctl calls. */ rc = SUPSetVMForFastIOCtl(pVM->pVMR0); if (RT_FAILURE(rc)) return rc; /* * Init various sub-components. */ rc = vmmR3SwitcherInit(pVM); if (RT_SUCCESS(rc)) { rc = vmmR3InitStacks(pVM); if (RT_SUCCESS(rc)) { rc = vmmR3InitLoggers(pVM); #ifdef VBOX_WITH_NMI /* * Allocate mapping for the host APIC. */ if (RT_SUCCESS(rc)) { rc = MMR3HyperReserve(pVM, PAGE_SIZE, "Host APIC", &pVM->vmm.s.GCPtrApicBase); AssertRC(rc); } #endif if (RT_SUCCESS(rc)) { rc = RTCritSectInit(&pVM->vmm.s.CritSectVMLock); if (RT_SUCCESS(rc)) { /* * Debug info and statistics. */ DBGFR3InfoRegisterInternal(pVM, "ff", "Displays the current Forced actions Flags.", vmmR3InfoFF); vmmR3InitRegisterStats(pVM); return VINF_SUCCESS; } } } /** @todo: Need failure cleanup. */ //more todo in here? //if (RT_SUCCESS(rc)) //{ //} //int rc2 = vmmR3TermCoreCode(pVM); //AssertRC(rc2)); } return rc; } /** * Allocate & setup the VMM RC stack(s) (for EMTs). * * The stacks are also used for long jumps in Ring-0. * * @returns VBox status code. * @param pVM Pointer to the shared VM structure. * * @remarks The optional guard page gets it protection setup up during R3 init * completion because of init order issues. */ static int vmmR3InitStacks(PVM pVM) { /** @todo SMP: On stack per vCPU. */ #ifdef VBOX_STRICT_VMM_STACK int rc = MMHyperAlloc(pVM, VMM_STACK_SIZE + PAGE_SIZE + PAGE_SIZE, PAGE_SIZE, MM_TAG_VMM, (void **)&pVM->vmm.s.pbEMTStackR3); #else int rc = MMHyperAlloc(pVM, VMM_STACK_SIZE, PAGE_SIZE, MM_TAG_VMM, (void **)&pVM->vmm.s.pbEMTStackR3); #endif if (RT_SUCCESS(rc)) { #ifdef VBOX_WITH_2X_4GB_ADDR_SPACE /* MMHyperR3ToR0 returns R3 when not doing hardware assisted virtualization. */ if (!VMMIsHwVirtExtForced(pVM)) pVM->vmm.s.CallHostR0JmpBuf.pvSavedStack = NIL_RTR0PTR; else #endif pVM->vmm.s.CallHostR0JmpBuf.pvSavedStack = MMHyperR3ToR0(pVM, pVM->vmm.s.pbEMTStackR3); pVM->vmm.s.pbEMTStackRC = MMHyperR3ToRC(pVM, pVM->vmm.s.pbEMTStackR3); pVM->vmm.s.pbEMTStackBottomRC = pVM->vmm.s.pbEMTStackRC + VMM_STACK_SIZE; AssertRelease(pVM->vmm.s.pbEMTStackRC); CPUMSetHyperESP(pVM, pVM->vmm.s.pbEMTStackBottomRC); } return rc; } /** * Initialize the loggers. * * @returns VBox status code. * @param pVM Pointer to the shared VM structure. */ static int vmmR3InitLoggers(PVM pVM) { int rc; /* * Allocate RC & R0 Logger instances (they are finalized in the relocator). */ #ifdef LOG_ENABLED PRTLOGGER pLogger = RTLogDefaultInstance(); if (pLogger) { pVM->vmm.s.cbRCLogger = RT_OFFSETOF(RTLOGGERRC, afGroups[pLogger->cGroups]); rc = MMHyperAlloc(pVM, pVM->vmm.s.cbRCLogger, 0, MM_TAG_VMM, (void **)&pVM->vmm.s.pRCLoggerR3); if (RT_FAILURE(rc)) return rc; pVM->vmm.s.pRCLoggerRC = MMHyperR3ToRC(pVM, pVM->vmm.s.pRCLoggerR3); # ifdef VBOX_WITH_R0_LOGGING rc = MMHyperAlloc(pVM, RT_OFFSETOF(VMMR0LOGGER, Logger.afGroups[pLogger->cGroups]), 0, MM_TAG_VMM, (void **)&pVM->vmm.s.pR0LoggerR3); if (RT_FAILURE(rc)) return rc; pVM->vmm.s.pR0LoggerR3->pVM = pVM->pVMR0; //pVM->vmm.s.pR0LoggerR3->fCreated = false; pVM->vmm.s.pR0LoggerR3->cbLogger = RT_OFFSETOF(RTLOGGER, afGroups[pLogger->cGroups]); pVM->vmm.s.pR0LoggerR0 = MMHyperR3ToR0(pVM, pVM->vmm.s.pR0LoggerR3); # endif } #endif /* LOG_ENABLED */ #ifdef VBOX_WITH_RC_RELEASE_LOGGING /* * Allocate RC release logger instances (finalized in the relocator). */ PRTLOGGER pRelLogger = RTLogRelDefaultInstance(); if (pRelLogger) { pVM->vmm.s.cbRCRelLogger = RT_OFFSETOF(RTLOGGERRC, afGroups[pRelLogger->cGroups]); rc = MMHyperAlloc(pVM, pVM->vmm.s.cbRCRelLogger, 0, MM_TAG_VMM, (void **)&pVM->vmm.s.pRCRelLoggerR3); if (RT_FAILURE(rc)) return rc; pVM->vmm.s.pRCRelLoggerRC = MMHyperR3ToRC(pVM, pVM->vmm.s.pRCRelLoggerR3); } #endif /* VBOX_WITH_RC_RELEASE_LOGGING */ return VINF_SUCCESS; } /** * VMMR3Init worker that register the statistics with STAM. * * @param pVM The shared VM structure. */ static void vmmR3InitRegisterStats(PVM pVM) { /* * Statistics. */ STAM_REG(pVM, &pVM->vmm.s.StatRunRC, STAMTYPE_COUNTER, "/VMM/RunRC", STAMUNIT_OCCURENCES, "Number of context switches."); STAM_REG(pVM, &pVM->vmm.s.StatRZRetNormal, STAMTYPE_COUNTER, "/VMM/RZRet/Normal", STAMUNIT_OCCURENCES, "Number of VINF_SUCCESS returns."); STAM_REG(pVM, &pVM->vmm.s.StatRZRetInterrupt, STAMTYPE_COUNTER, "/VMM/RZRet/Interrupt", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_INTERRUPT returns."); STAM_REG(pVM, &pVM->vmm.s.StatRZRetInterruptHyper, STAMTYPE_COUNTER, "/VMM/RZRet/InterruptHyper", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_INTERRUPT_HYPER returns."); STAM_REG(pVM, &pVM->vmm.s.StatRZRetGuestTrap, STAMTYPE_COUNTER, "/VMM/RZRet/GuestTrap", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_GUEST_TRAP returns."); STAM_REG(pVM, &pVM->vmm.s.StatRZRetRingSwitch, STAMTYPE_COUNTER, "/VMM/RZRet/RingSwitch", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_RING_SWITCH returns."); STAM_REG(pVM, &pVM->vmm.s.StatRZRetRingSwitchInt, STAMTYPE_COUNTER, "/VMM/RZRet/RingSwitchInt", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_RING_SWITCH_INT returns."); STAM_REG(pVM, &pVM->vmm.s.StatRZRetExceptionPrivilege, STAMTYPE_COUNTER, "/VMM/RZRet/ExceptionPrivilege", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_EXCEPTION_PRIVILEGED returns."); STAM_REG(pVM, &pVM->vmm.s.StatRZRetStaleSelector, STAMTYPE_COUNTER, "/VMM/RZRet/StaleSelector", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_STALE_SELECTOR returns."); STAM_REG(pVM, &pVM->vmm.s.StatRZRetIRETTrap, STAMTYPE_COUNTER, "/VMM/RZRet/IRETTrap", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_IRET_TRAP returns."); STAM_REG(pVM, &pVM->vmm.s.StatRZRetEmulate, STAMTYPE_COUNTER, "/VMM/RZRet/Emulate", STAMUNIT_OCCURENCES, "Number of VINF_EM_EXECUTE_INSTRUCTION returns."); STAM_REG(pVM, &pVM->vmm.s.StatRZRetPatchEmulate, STAMTYPE_COUNTER, "/VMM/RZRet/PatchEmulate", STAMUNIT_OCCURENCES, "Number of VINF_PATCH_EMULATE_INSTR returns."); STAM_REG(pVM, &pVM->vmm.s.StatRZRetIORead, STAMTYPE_COUNTER, "/VMM/RZRet/IORead", STAMUNIT_OCCURENCES, "Number of VINF_IOM_HC_IOPORT_READ returns."); STAM_REG(pVM, &pVM->vmm.s.StatRZRetIOWrite, STAMTYPE_COUNTER, "/VMM/RZRet/IOWrite", STAMUNIT_OCCURENCES, "Number of VINF_IOM_HC_IOPORT_WRITE returns."); STAM_REG(pVM, &pVM->vmm.s.StatRZRetMMIORead, STAMTYPE_COUNTER, "/VMM/RZRet/MMIORead", STAMUNIT_OCCURENCES, "Number of VINF_IOM_HC_MMIO_READ returns."); STAM_REG(pVM, &pVM->vmm.s.StatRZRetMMIOWrite, STAMTYPE_COUNTER, "/VMM/RZRet/MMIOWrite", STAMUNIT_OCCURENCES, "Number of VINF_IOM_HC_MMIO_WRITE returns."); STAM_REG(pVM, &pVM->vmm.s.StatRZRetMMIOReadWrite, STAMTYPE_COUNTER, "/VMM/RZRet/MMIOReadWrite", STAMUNIT_OCCURENCES, "Number of VINF_IOM_HC_MMIO_READ_WRITE returns."); STAM_REG(pVM, &pVM->vmm.s.StatRZRetMMIOPatchRead, STAMTYPE_COUNTER, "/VMM/RZRet/MMIOPatchRead", STAMUNIT_OCCURENCES, "Number of VINF_IOM_HC_MMIO_PATCH_READ returns."); STAM_REG(pVM, &pVM->vmm.s.StatRZRetMMIOPatchWrite, STAMTYPE_COUNTER, "/VMM/RZRet/MMIOPatchWrite", STAMUNIT_OCCURENCES, "Number of VINF_IOM_HC_MMIO_PATCH_WRITE returns."); STAM_REG(pVM, &pVM->vmm.s.StatRZRetLDTFault, STAMTYPE_COUNTER, "/VMM/RZRet/LDTFault", STAMUNIT_OCCURENCES, "Number of VINF_EM_EXECUTE_INSTRUCTION_GDT_FAULT returns."); STAM_REG(pVM, &pVM->vmm.s.StatRZRetGDTFault, STAMTYPE_COUNTER, "/VMM/RZRet/GDTFault", STAMUNIT_OCCURENCES, "Number of VINF_EM_EXECUTE_INSTRUCTION_LDT_FAULT returns."); STAM_REG(pVM, &pVM->vmm.s.StatRZRetIDTFault, STAMTYPE_COUNTER, "/VMM/RZRet/IDTFault", STAMUNIT_OCCURENCES, "Number of VINF_EM_EXECUTE_INSTRUCTION_IDT_FAULT returns."); STAM_REG(pVM, &pVM->vmm.s.StatRZRetTSSFault, STAMTYPE_COUNTER, "/VMM/RZRet/TSSFault", STAMUNIT_OCCURENCES, "Number of VINF_EM_EXECUTE_INSTRUCTION_TSS_FAULT returns."); STAM_REG(pVM, &pVM->vmm.s.StatRZRetPDFault, STAMTYPE_COUNTER, "/VMM/RZRet/PDFault", STAMUNIT_OCCURENCES, "Number of VINF_EM_EXECUTE_INSTRUCTION_PD_FAULT returns."); STAM_REG(pVM, &pVM->vmm.s.StatRZRetCSAMTask, STAMTYPE_COUNTER, "/VMM/RZRet/CSAMTask", STAMUNIT_OCCURENCES, "Number of VINF_CSAM_PENDING_ACTION returns."); STAM_REG(pVM, &pVM->vmm.s.StatRZRetSyncCR3, STAMTYPE_COUNTER, "/VMM/RZRet/SyncCR", STAMUNIT_OCCURENCES, "Number of VINF_PGM_SYNC_CR3 returns."); STAM_REG(pVM, &pVM->vmm.s.StatRZRetMisc, STAMTYPE_COUNTER, "/VMM/RZRet/Misc", STAMUNIT_OCCURENCES, "Number of misc returns."); STAM_REG(pVM, &pVM->vmm.s.StatRZRetPatchInt3, STAMTYPE_COUNTER, "/VMM/RZRet/PatchInt3", STAMUNIT_OCCURENCES, "Number of VINF_PATM_PATCH_INT3 returns."); STAM_REG(pVM, &pVM->vmm.s.StatRZRetPatchPF, STAMTYPE_COUNTER, "/VMM/RZRet/PatchPF", STAMUNIT_OCCURENCES, "Number of VINF_PATM_PATCH_TRAP_PF returns."); STAM_REG(pVM, &pVM->vmm.s.StatRZRetPatchGP, STAMTYPE_COUNTER, "/VMM/RZRet/PatchGP", STAMUNIT_OCCURENCES, "Number of VINF_PATM_PATCH_TRAP_GP returns."); STAM_REG(pVM, &pVM->vmm.s.StatRZRetPatchIretIRQ, STAMTYPE_COUNTER, "/VMM/RZRet/PatchIret", STAMUNIT_OCCURENCES, "Number of VINF_PATM_PENDING_IRQ_AFTER_IRET returns."); STAM_REG(pVM, &pVM->vmm.s.StatRZRetPageOverflow, STAMTYPE_COUNTER, "/VMM/RZRet/InvlpgOverflow", STAMUNIT_OCCURENCES, "Number of VERR_REM_FLUSHED_PAGES_OVERFLOW returns."); STAM_REG(pVM, &pVM->vmm.s.StatRZRetRescheduleREM, STAMTYPE_COUNTER, "/VMM/RZRet/ScheduleREM", STAMUNIT_OCCURENCES, "Number of VINF_EM_RESCHEDULE_REM returns."); STAM_REG(pVM, &pVM->vmm.s.StatRZRetToR3, STAMTYPE_COUNTER, "/VMM/RZRet/ToR3", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_TO_R3 returns."); STAM_REG(pVM, &pVM->vmm.s.StatRZRetTimerPending, STAMTYPE_COUNTER, "/VMM/RZRet/TimerPending", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_TIMER_PENDING returns."); STAM_REG(pVM, &pVM->vmm.s.StatRZRetInterruptPending, STAMTYPE_COUNTER, "/VMM/RZRet/InterruptPending", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_INTERRUPT_PENDING returns."); STAM_REG(pVM, &pVM->vmm.s.StatRZRetPATMDuplicateFn, STAMTYPE_COUNTER, "/VMM/RZRet/PATMDuplicateFn", STAMUNIT_OCCURENCES, "Number of VINF_PATM_DUPLICATE_FUNCTION returns."); STAM_REG(pVM, &pVM->vmm.s.StatRZRetPGMChangeMode, STAMTYPE_COUNTER, "/VMM/RZRet/PGMChangeMode", STAMUNIT_OCCURENCES, "Number of VINF_PGM_CHANGE_MODE returns."); STAM_REG(pVM, &pVM->vmm.s.StatRZRetEmulHlt, STAMTYPE_COUNTER, "/VMM/RZRet/EmulHlt", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_EMULATE_INSTR_HLT returns."); STAM_REG(pVM, &pVM->vmm.s.StatRZRetPendingRequest, STAMTYPE_COUNTER, "/VMM/RZRet/PendingRequest", STAMUNIT_OCCURENCES, "Number of VINF_EM_PENDING_REQUEST returns."); STAM_REG(pVM, &pVM->vmm.s.StatRZRetCallHost, STAMTYPE_COUNTER, "/VMM/RZCallR3/Misc", STAMUNIT_OCCURENCES, "Number of Other ring-3 calls."); STAM_REG(pVM, &pVM->vmm.s.StatRZCallPDMLock, STAMTYPE_COUNTER, "/VMM/RZCallR3/PDMLock", STAMUNIT_OCCURENCES, "Number of VMMCALLHOST_PDM_LOCK calls."); STAM_REG(pVM, &pVM->vmm.s.StatRZCallPDMQueueFlush, STAMTYPE_COUNTER, "/VMM/RZCallR3/PDMQueueFlush", STAMUNIT_OCCURENCES, "Number of VMMCALLHOST_PDM_QUEUE_FLUSH calls."); STAM_REG(pVM, &pVM->vmm.s.StatRZCallPGMLock, STAMTYPE_COUNTER, "/VMM/RZCallR3/PGMLock", STAMUNIT_OCCURENCES, "Number of VMMCALLHOST_PGM_LOCK calls."); STAM_REG(pVM, &pVM->vmm.s.StatRZCallPGMPoolGrow, STAMTYPE_COUNTER, "/VMM/RZCallR3/PGMPoolGrow", STAMUNIT_OCCURENCES, "Number of VMMCALLHOST_PGM_POOL_GROW calls."); STAM_REG(pVM, &pVM->vmm.s.StatRZCallPGMMapChunk, STAMTYPE_COUNTER, "/VMM/RZCallR3/PGMMapChunk", STAMUNIT_OCCURENCES, "Number of VMMCALLHOST_PGM_MAP_CHUNK calls."); STAM_REG(pVM, &pVM->vmm.s.StatRZCallPGMAllocHandy, STAMTYPE_COUNTER, "/VMM/RZCallR3/PGMAllocHandy", STAMUNIT_OCCURENCES, "Number of VMMCALLHOST_PGM_ALLOCATE_HANDY_PAGES calls."); #ifndef VBOX_WITH_NEW_PHYS_CODE STAM_REG(pVM, &pVM->vmm.s.StatRZCallPGMGrowRAM, STAMTYPE_COUNTER, "/VMM/RZCallR3/PGMGrowRAM", STAMUNIT_OCCURENCES, "Number of VMMCALLHOST_PGM_RAM_GROW_RANGE calls."); #endif STAM_REG(pVM, &pVM->vmm.s.StatRZCallRemReplay, STAMTYPE_COUNTER, "/VMM/RZCallR3/REMReplay", STAMUNIT_OCCURENCES, "Number of VMMCALLHOST_REM_REPLAY_HANDLER_NOTIFICATIONS calls."); STAM_REG(pVM, &pVM->vmm.s.StatRZCallLogFlush, STAMTYPE_COUNTER, "/VMM/RZCallR3/VMMLogFlush", STAMUNIT_OCCURENCES, "Number of VMMCALLHOST_VMM_LOGGER_FLUSH calls."); STAM_REG(pVM, &pVM->vmm.s.StatRZCallVMSetError, STAMTYPE_COUNTER, "/VMM/RZCallR3/VMSetError", STAMUNIT_OCCURENCES, "Number of VMMCALLHOST_VM_SET_ERROR calls."); STAM_REG(pVM, &pVM->vmm.s.StatRZCallVMSetRuntimeError, STAMTYPE_COUNTER, "/VMM/RZCallR3/VMRuntimeError", STAMUNIT_OCCURENCES, "Number of VMMCALLHOST_VM_SET_RUNTIME_ERROR calls."); } /** * Initializes the per-VCPU VMM. * * @returns VBox status code. * @param pVM The VM to operate on. */ VMMR3DECL(int) VMMR3InitCPU(PVM pVM) { LogFlow(("VMMR3InitCPU\n")); return VINF_SUCCESS; } /** * Ring-3 init finalizing. * * @returns VBox status code. * @param pVM The VM handle. */ VMMR3DECL(int) VMMR3InitFinalize(PVM pVM) { #ifdef VBOX_STRICT_VMM_STACK /* * Two inaccessible pages at each sides of the stack to catch over/under-flows. */ memset(pVM->vmm.s.pbEMTStackR3 - PAGE_SIZE, 0xcc, PAGE_SIZE); PGMMapSetPage(pVM, MMHyperR3ToRC(pVM, pVM->vmm.s.pbEMTStackR3 - PAGE_SIZE), PAGE_SIZE, 0); RTMemProtect(pVM->vmm.s.pbEMTStackR3 - PAGE_SIZE, PAGE_SIZE, RTMEM_PROT_NONE); memset(pVM->vmm.s.pbEMTStackR3 + VMM_STACK_SIZE, 0xcc, PAGE_SIZE); PGMMapSetPage(pVM, MMHyperR3ToRC(pVM, pVM->vmm.s.pbEMTStackR3 + VMM_STACK_SIZE), PAGE_SIZE, 0); RTMemProtect(pVM->vmm.s.pbEMTStackR3 + VMM_STACK_SIZE, PAGE_SIZE, RTMEM_PROT_NONE); #endif /* * Set page attributes to r/w for stack pages. */ int rc = PGMMapSetPage(pVM, pVM->vmm.s.pbEMTStackRC, VMM_STACK_SIZE, X86_PTE_P | X86_PTE_A | X86_PTE_D | X86_PTE_RW); AssertRC(rc); if (RT_SUCCESS(rc)) { /* * Create the EMT yield timer. */ rc = TMR3TimerCreateInternal(pVM, TMCLOCK_REAL, vmmR3YieldEMT, NULL, "EMT Yielder", &pVM->vmm.s.pYieldTimer); if (RT_SUCCESS(rc)) rc = TMTimerSetMillies(pVM->vmm.s.pYieldTimer, pVM->vmm.s.cYieldEveryMillies); } #ifdef VBOX_WITH_NMI /* * Map the host APIC into GC - This is AMD/Intel + Host OS specific! */ if (RT_SUCCESS(rc)) rc = PGMMap(pVM, pVM->vmm.s.GCPtrApicBase, 0xfee00000, PAGE_SIZE, X86_PTE_P | X86_PTE_RW | X86_PTE_PWT | X86_PTE_PCD | X86_PTE_A | X86_PTE_D); #endif return rc; } /** * Initializes the R0 VMM. * * @returns VBox status code. * @param pVM The VM to operate on. */ VMMR3DECL(int) VMMR3InitR0(PVM pVM) { int rc; /* * Initialize the ring-0 logger if we haven't done so yet. */ if ( pVM->vmm.s.pR0LoggerR3 && !pVM->vmm.s.pR0LoggerR3->fCreated) { rc = VMMR3UpdateLoggers(pVM); if (RT_FAILURE(rc)) return rc; } /* * Call Ring-0 entry with init code. */ for (;;) { #ifdef NO_SUPCALLR0VMM //rc = VERR_GENERAL_FAILURE; rc = VINF_SUCCESS; #else rc = SUPCallVMMR0Ex(pVM->pVMR0, VMMR0_DO_VMMR0_INIT, VMMGetSvnRev(), NULL); #endif if ( pVM->vmm.s.pR0LoggerR3 && pVM->vmm.s.pR0LoggerR3->Logger.offScratch > 0) RTLogFlushToLogger(&pVM->vmm.s.pR0LoggerR3->Logger, NULL); if (rc != VINF_VMM_CALL_HOST) break; rc = vmmR3ServiceCallHostRequest(pVM); if (RT_FAILURE(rc) || (rc >= VINF_EM_FIRST && rc <= VINF_EM_LAST)) break; /* Resume R0 */ } if (RT_FAILURE(rc) || (rc >= VINF_EM_FIRST && rc <= VINF_EM_LAST)) { LogRel(("R0 init failed, rc=%Rra\n", rc)); if (RT_SUCCESS(rc)) rc = VERR_INTERNAL_ERROR; } return rc; } /** * Initializes the RC VMM. * * @returns VBox status code. * @param pVM The VM to operate on. */ VMMR3DECL(int) VMMR3InitRC(PVM pVM) { /* In VMX mode, there's no need to init RC. */ if (pVM->vmm.s.fSwitcherDisabled) return VINF_SUCCESS; /* * Call VMMGCInit(): * -# resolve the address. * -# setup stackframe and EIP to use the trampoline. * -# do a generic hypervisor call. */ RTRCPTR RCPtrEP; int rc = PDMR3LdrGetSymbolRC(pVM, VMMGC_MAIN_MODULE_NAME, "VMMGCEntry", &RCPtrEP); if (RT_SUCCESS(rc)) { CPUMHyperSetCtxCore(pVM, NULL); CPUMSetHyperESP(pVM, pVM->vmm.s.pbEMTStackBottomRC); /* Clear the stack. */ uint64_t u64TS = RTTimeProgramStartNanoTS(); CPUMPushHyper(pVM, (uint32_t)(u64TS >> 32)); /* Param 3: The program startup TS - Hi. */ CPUMPushHyper(pVM, (uint32_t)u64TS); /* Param 3: The program startup TS - Lo. */ CPUMPushHyper(pVM, VMMGetSvnRev()); /* Param 2: Version argument. */ CPUMPushHyper(pVM, VMMGC_DO_VMMGC_INIT); /* Param 1: Operation. */ CPUMPushHyper(pVM, pVM->pVMRC); /* Param 0: pVM */ CPUMPushHyper(pVM, 5 * sizeof(RTRCPTR)); /* trampoline param: stacksize. */ CPUMPushHyper(pVM, RCPtrEP); /* Call EIP. */ CPUMSetHyperEIP(pVM, pVM->vmm.s.pfnCallTrampolineRC); for (;;) { #ifdef NO_SUPCALLR0VMM //rc = VERR_GENERAL_FAILURE; rc = VINF_SUCCESS; #else rc = SUPCallVMMR0(pVM->pVMR0, VMMR0_DO_CALL_HYPERVISOR, NULL); #endif #ifdef LOG_ENABLED PRTLOGGERRC pLogger = pVM->vmm.s.pRCLoggerR3; if ( pLogger && pLogger->offScratch > 0) RTLogFlushRC(NULL, pLogger); #endif #ifdef VBOX_WITH_RC_RELEASE_LOGGING PRTLOGGERRC pRelLogger = pVM->vmm.s.pRCRelLoggerR3; if (RT_UNLIKELY(pRelLogger && pRelLogger->offScratch > 0)) RTLogFlushRC(RTLogRelDefaultInstance(), pRelLogger); #endif if (rc != VINF_VMM_CALL_HOST) break; rc = vmmR3ServiceCallHostRequest(pVM); if (RT_FAILURE(rc) || (rc >= VINF_EM_FIRST && rc <= VINF_EM_LAST)) break; } if (RT_FAILURE(rc) || (rc >= VINF_EM_FIRST && rc <= VINF_EM_LAST)) { VMMR3FatalDump(pVM, rc); if (rc >= VINF_EM_FIRST && rc <= VINF_EM_LAST) rc = VERR_INTERNAL_ERROR; } AssertRC(rc); } return rc; } /** * Terminate the VMM bits. * * @returns VINF_SUCCESS. * @param pVM The VM handle. */ VMMR3DECL(int) VMMR3Term(PVM pVM) { /* * Call Ring-0 entry with termination code. */ int rc; for (;;) { #ifdef NO_SUPCALLR0VMM //rc = VERR_GENERAL_FAILURE; rc = VINF_SUCCESS; #else rc = SUPCallVMMR0Ex(pVM->pVMR0, VMMR0_DO_VMMR0_TERM, 0, NULL); #endif if ( pVM->vmm.s.pR0LoggerR3 && pVM->vmm.s.pR0LoggerR3->Logger.offScratch > 0) RTLogFlushToLogger(&pVM->vmm.s.pR0LoggerR3->Logger, NULL); if (rc != VINF_VMM_CALL_HOST) break; rc = vmmR3ServiceCallHostRequest(pVM); if (RT_FAILURE(rc) || (rc >= VINF_EM_FIRST && rc <= VINF_EM_LAST)) break; /* Resume R0 */ } if (RT_FAILURE(rc) || (rc >= VINF_EM_FIRST && rc <= VINF_EM_LAST)) { LogRel(("VMMR3Term: R0 term failed, rc=%Rra. (warning)\n", rc)); if (RT_SUCCESS(rc)) rc = VERR_INTERNAL_ERROR; } #ifdef VBOX_STRICT_VMM_STACK /* * Make the two stack guard pages present again. */ RTMemProtect(pVM->vmm.s.pbEMTStackR3 - PAGE_SIZE, PAGE_SIZE, RTMEM_PROT_READ | RTMEM_PROT_WRITE); RTMemProtect(pVM->vmm.s.pbEMTStackR3 + VMM_STACK_SIZE, PAGE_SIZE, RTMEM_PROT_READ | RTMEM_PROT_WRITE); #endif return rc; } /** * Terminates the per-VCPU VMM. * * Termination means cleaning up and freeing all resources, * the VM it self is at this point powered off or suspended. * * @returns VBox status code. * @param pVM The VM to operate on. */ VMMR3DECL(int) VMMR3TermCPU(PVM pVM) { return VINF_SUCCESS; } /** * Applies relocations to data and code managed by this * component. This function will be called at init and * whenever the VMM need to relocate it self inside the GC. * * The VMM will need to apply relocations to the core code. * * @param pVM The VM handle. * @param offDelta The relocation delta. */ VMMR3DECL(void) VMMR3Relocate(PVM pVM, RTGCINTPTR offDelta) { LogFlow(("VMMR3Relocate: offDelta=%RGv\n", offDelta)); /* * Recalc the RC address. */ pVM->vmm.s.pvCoreCodeRC = MMHyperR3ToRC(pVM, pVM->vmm.s.pvCoreCodeR3); /* * The stack. */ CPUMSetHyperESP(pVM, CPUMGetHyperESP(pVM) + offDelta); pVM->vmm.s.pbEMTStackRC = MMHyperR3ToRC(pVM, pVM->vmm.s.pbEMTStackR3); pVM->vmm.s.pbEMTStackBottomRC = pVM->vmm.s.pbEMTStackRC + VMM_STACK_SIZE; /* * All the switchers. */ vmmR3SwitcherRelocate(pVM, offDelta); /* * Get other RC entry points. */ int rc = PDMR3LdrGetSymbolRC(pVM, VMMGC_MAIN_MODULE_NAME, "CPUMGCResumeGuest", &pVM->vmm.s.pfnCPUMRCResumeGuest); AssertReleaseMsgRC(rc, ("CPUMGCResumeGuest not found! rc=%Rra\n", rc)); rc = PDMR3LdrGetSymbolRC(pVM, VMMGC_MAIN_MODULE_NAME, "CPUMGCResumeGuestV86", &pVM->vmm.s.pfnCPUMRCResumeGuestV86); AssertReleaseMsgRC(rc, ("CPUMGCResumeGuestV86 not found! rc=%Rra\n", rc)); /* * Update the logger. */ VMMR3UpdateLoggers(pVM); } /** * Updates the settings for the RC and R0 loggers. * * @returns VBox status code. * @param pVM The VM handle. */ VMMR3DECL(int) VMMR3UpdateLoggers(PVM pVM) { /* * Simply clone the logger instance (for RC). */ int rc = VINF_SUCCESS; RTRCPTR RCPtrLoggerFlush = 0; if (pVM->vmm.s.pRCLoggerR3 #ifdef VBOX_WITH_RC_RELEASE_LOGGING || pVM->vmm.s.pRCRelLoggerR3 #endif ) { rc = PDMR3LdrGetSymbolRC(pVM, VMMGC_MAIN_MODULE_NAME, "vmmGCLoggerFlush", &RCPtrLoggerFlush); AssertReleaseMsgRC(rc, ("vmmGCLoggerFlush not found! rc=%Rra\n", rc)); } if (pVM->vmm.s.pRCLoggerR3) { RTRCPTR RCPtrLoggerWrapper = 0; rc = PDMR3LdrGetSymbolRC(pVM, VMMGC_MAIN_MODULE_NAME, "vmmGCLoggerWrapper", &RCPtrLoggerWrapper); AssertReleaseMsgRC(rc, ("vmmGCLoggerWrapper not found! rc=%Rra\n", rc)); pVM->vmm.s.pRCLoggerRC = MMHyperR3ToRC(pVM, pVM->vmm.s.pRCLoggerR3); rc = RTLogCloneRC(NULL /* default */, pVM->vmm.s.pRCLoggerR3, pVM->vmm.s.cbRCLogger, RCPtrLoggerWrapper, RCPtrLoggerFlush, RTLOGFLAGS_BUFFERED); AssertReleaseMsgRC(rc, ("RTLogCloneRC failed! rc=%Rra\n", rc)); } #ifdef VBOX_WITH_RC_RELEASE_LOGGING if (pVM->vmm.s.pRCRelLoggerR3) { RTRCPTR RCPtrLoggerWrapper = 0; rc = PDMR3LdrGetSymbolRC(pVM, VMMGC_MAIN_MODULE_NAME, "vmmGCRelLoggerWrapper", &RCPtrLoggerWrapper); AssertReleaseMsgRC(rc, ("vmmGCRelLoggerWrapper not found! rc=%Rra\n", rc)); pVM->vmm.s.pRCRelLoggerRC = MMHyperR3ToRC(pVM, pVM->vmm.s.pRCRelLoggerR3); rc = RTLogCloneRC(RTLogRelDefaultInstance(), pVM->vmm.s.pRCRelLoggerR3, pVM->vmm.s.cbRCRelLogger, RCPtrLoggerWrapper, RCPtrLoggerFlush, RTLOGFLAGS_BUFFERED); AssertReleaseMsgRC(rc, ("RTLogCloneRC failed! rc=%Rra\n", rc)); } #endif /* VBOX_WITH_RC_RELEASE_LOGGING */ /* * For the ring-0 EMT logger, we use a per-thread logger instance * in ring-0. Only initialize it once. */ PVMMR0LOGGER pR0LoggerR3 = pVM->vmm.s.pR0LoggerR3; if (pR0LoggerR3) { if (!pR0LoggerR3->fCreated) { RTR0PTR pfnLoggerWrapper = NIL_RTR0PTR; rc = PDMR3LdrGetSymbolR0(pVM, VMMR0_MAIN_MODULE_NAME, "vmmR0LoggerWrapper", &pfnLoggerWrapper); AssertReleaseMsgRCReturn(rc, ("VMMLoggerWrapper not found! rc=%Rra\n", rc), rc); RTR0PTR pfnLoggerFlush = NIL_RTR0PTR; rc = PDMR3LdrGetSymbolR0(pVM, VMMR0_MAIN_MODULE_NAME, "vmmR0LoggerFlush", &pfnLoggerFlush); AssertReleaseMsgRCReturn(rc, ("VMMLoggerFlush not found! rc=%Rra\n", rc), rc); rc = RTLogCreateForR0(&pR0LoggerR3->Logger, pR0LoggerR3->cbLogger, *(PFNRTLOGGER *)&pfnLoggerWrapper, *(PFNRTLOGFLUSH *)&pfnLoggerFlush, RTLOGFLAGS_BUFFERED, RTLOGDEST_DUMMY); AssertReleaseMsgRCReturn(rc, ("RTLogCreateForR0 failed! rc=%Rra\n", rc), rc); pR0LoggerR3->fCreated = true; pR0LoggerR3->fFlushingDisabled = false; } rc = RTLogCopyGroupsAndFlags(&pR0LoggerR3->Logger, NULL /* default */, pVM->vmm.s.pRCLoggerR3->fFlags, RTLOGFLAGS_BUFFERED); AssertRC(rc); } return rc; } /** * Gets the pointer to a buffer containing the R0/RC AssertMsg1 output. * * @returns Pointer to the buffer. * @param pVM The VM handle. */ VMMR3DECL(const char *) VMMR3GetRZAssertMsg1(PVM pVM) { if (HWACCMIsEnabled(pVM)) return pVM->vmm.s.szRing0AssertMsg1; RTRCPTR RCPtr; int rc = PDMR3LdrGetSymbolRC(pVM, NULL, "g_szRTAssertMsg1", &RCPtr); if (RT_SUCCESS(rc)) return (const char *)MMHyperRCToR3(pVM, RCPtr); return NULL; } /** * Gets the pointer to a buffer containing the R0/RC AssertMsg2 output. * * @returns Pointer to the buffer. * @param pVM The VM handle. */ VMMR3DECL(const char *) VMMR3GetRZAssertMsg2(PVM pVM) { if (HWACCMIsEnabled(pVM)) return pVM->vmm.s.szRing0AssertMsg2; RTRCPTR RCPtr; int rc = PDMR3LdrGetSymbolRC(pVM, NULL, "g_szRTAssertMsg2", &RCPtr); if (RT_SUCCESS(rc)) return (const char *)MMHyperRCToR3(pVM, RCPtr); return NULL; } /** * Execute state save operation. * * @returns VBox status code. * @param pVM VM Handle. * @param pSSM SSM operation handle. */ static DECLCALLBACK(int) vmmR3Save(PVM pVM, PSSMHANDLE pSSM) { LogFlow(("vmmR3Save:\n")); /* * The hypervisor stack. * Note! See not in vmmR3Load. */ SSMR3PutRCPtr(pSSM, pVM->vmm.s.pbEMTStackBottomRC); RTRCPTR RCPtrESP = CPUMGetHyperESP(pVM); AssertMsg(pVM->vmm.s.pbEMTStackBottomRC - RCPtrESP <= VMM_STACK_SIZE, ("Bottom %RRv ESP=%RRv\n", pVM->vmm.s.pbEMTStackBottomRC, RCPtrESP)); SSMR3PutRCPtr(pSSM, RCPtrESP); SSMR3PutMem(pSSM, pVM->vmm.s.pbEMTStackR3, VMM_STACK_SIZE); return SSMR3PutU32(pSSM, ~0); /* terminator */ } /** * Execute state load operation. * * @returns VBox status code. * @param pVM VM Handle. * @param pSSM SSM operation handle. * @param u32Version Data layout version. */ static DECLCALLBACK(int) vmmR3Load(PVM pVM, PSSMHANDLE pSSM, uint32_t u32Version) { LogFlow(("vmmR3Load:\n")); /* * Validate version. */ if (u32Version != VMM_SAVED_STATE_VERSION) { AssertMsgFailed(("vmmR3Load: Invalid version u32Version=%d!\n", u32Version)); return VERR_SSM_UNSUPPORTED_DATA_UNIT_VERSION; } /* * Check that the stack is in the same place, or that it's fearly empty. * * Note! This can be skipped next time we update saved state as we will * never be in a R0/RC -> ring-3 call when saving the state. The * stack and the two associated pointers are not required. */ RTRCPTR RCPtrStackBottom; SSMR3GetRCPtr(pSSM, &RCPtrStackBottom); RTRCPTR RCPtrESP; int rc = SSMR3GetRCPtr(pSSM, &RCPtrESP); if (RT_FAILURE(rc)) return rc; /* restore the stack. */ SSMR3GetMem(pSSM, pVM->vmm.s.pbEMTStackR3, VMM_STACK_SIZE); /* terminator */ uint32_t u32; rc = SSMR3GetU32(pSSM, &u32); if (RT_FAILURE(rc)) return rc; if (u32 != ~0U) { AssertMsgFailed(("u32=%#x\n", u32)); return VERR_SSM_DATA_UNIT_FORMAT_CHANGED; } return VINF_SUCCESS; } /** * Resolve a builtin RC symbol. * * Called by PDM when loading or relocating RC modules. * * @returns VBox status * @param pVM VM Handle. * @param pszSymbol Symbol to resolv * @param pRCPtrValue Where to store the symbol value. * * @remark This has to work before VMMR3Relocate() is called. */ VMMR3DECL(int) VMMR3GetImportRC(PVM pVM, const char *pszSymbol, PRTRCPTR pRCPtrValue) { if (!strcmp(pszSymbol, "g_Logger")) { if (pVM->vmm.s.pRCLoggerR3) pVM->vmm.s.pRCLoggerRC = MMHyperR3ToRC(pVM, pVM->vmm.s.pRCLoggerR3); *pRCPtrValue = pVM->vmm.s.pRCLoggerRC; } else if (!strcmp(pszSymbol, "g_RelLogger")) { #ifdef VBOX_WITH_RC_RELEASE_LOGGING if (pVM->vmm.s.pRCRelLoggerR3) pVM->vmm.s.pRCRelLoggerRC = MMHyperR3ToRC(pVM, pVM->vmm.s.pRCRelLoggerR3); *pRCPtrValue = pVM->vmm.s.pRCRelLoggerRC; #else *pRCPtrValue = NIL_RTRCPTR; #endif } else return VERR_SYMBOL_NOT_FOUND; return VINF_SUCCESS; } /** * Suspends the CPU yielder. * * @param pVM The VM handle. */ VMMR3DECL(void) VMMR3YieldSuspend(PVM pVM) { if (!pVM->vmm.s.cYieldResumeMillies) { uint64_t u64Now = TMTimerGet(pVM->vmm.s.pYieldTimer); uint64_t u64Expire = TMTimerGetExpire(pVM->vmm.s.pYieldTimer); if (u64Now >= u64Expire || u64Expire == ~(uint64_t)0) pVM->vmm.s.cYieldResumeMillies = pVM->vmm.s.cYieldEveryMillies; else pVM->vmm.s.cYieldResumeMillies = TMTimerToMilli(pVM->vmm.s.pYieldTimer, u64Expire - u64Now); TMTimerStop(pVM->vmm.s.pYieldTimer); } pVM->vmm.s.u64LastYield = RTTimeNanoTS(); } /** * Stops the CPU yielder. * * @param pVM The VM handle. */ VMMR3DECL(void) VMMR3YieldStop(PVM pVM) { if (!pVM->vmm.s.cYieldResumeMillies) TMTimerStop(pVM->vmm.s.pYieldTimer); pVM->vmm.s.cYieldResumeMillies = pVM->vmm.s.cYieldEveryMillies; pVM->vmm.s.u64LastYield = RTTimeNanoTS(); } /** * Resumes the CPU yielder when it has been a suspended or stopped. * * @param pVM The VM handle. */ VMMR3DECL(void) VMMR3YieldResume(PVM pVM) { if (pVM->vmm.s.cYieldResumeMillies) { TMTimerSetMillies(pVM->vmm.s.pYieldTimer, pVM->vmm.s.cYieldResumeMillies); pVM->vmm.s.cYieldResumeMillies = 0; } } /** * Internal timer callback function. * * @param pVM The VM. * @param pTimer The timer handle. * @param pvUser User argument specified upon timer creation. */ static DECLCALLBACK(void) vmmR3YieldEMT(PVM pVM, PTMTIMER pTimer, void *pvUser) { /* * This really needs some careful tuning. While we shouldn't be too greedy since * that'll cause the rest of the system to stop up, we shouldn't be too nice either * because that'll cause us to stop up. * * The current logic is to use the default interval when there is no lag worth * mentioning, but when we start accumulating lag we don't bother yielding at all. * * (This depends on the TMCLOCK_VIRTUAL_SYNC to be scheduled before TMCLOCK_REAL * so the lag is up to date.) */ const uint64_t u64Lag = TMVirtualSyncGetLag(pVM); if ( u64Lag < 50000000 /* 50ms */ || ( u64Lag < 1000000000 /* 1s */ && RTTimeNanoTS() - pVM->vmm.s.u64LastYield < 500000000 /* 500 ms */) ) { uint64_t u64Elapsed = RTTimeNanoTS(); pVM->vmm.s.u64LastYield = u64Elapsed; RTThreadYield(); #ifdef LOG_ENABLED u64Elapsed = RTTimeNanoTS() - u64Elapsed; Log(("vmmR3YieldEMT: %RI64 ns\n", u64Elapsed)); #endif } TMTimerSetMillies(pTimer, pVM->vmm.s.cYieldEveryMillies); } /** * Acquire global VM lock. * * @returns VBox status code * @param pVM The VM to operate on. * * @remarks The global VMM lock isn't really used for anything any longer. */ VMMR3DECL(int) VMMR3Lock(PVM pVM) { return RTCritSectEnter(&pVM->vmm.s.CritSectVMLock); } /** * Release global VM lock. * * @returns VBox status code * @param pVM The VM to operate on. * * @remarks The global VMM lock isn't really used for anything any longer. */ VMMR3DECL(int) VMMR3Unlock(PVM pVM) { return RTCritSectLeave(&pVM->vmm.s.CritSectVMLock); } /** * Return global VM lock owner. * * @returns Thread id of owner. * @returns NIL_RTTHREAD if no owner. * @param pVM The VM to operate on. * * @remarks The global VMM lock isn't really used for anything any longer. */ VMMR3DECL(RTNATIVETHREAD) VMMR3LockGetOwner(PVM pVM) { return RTCritSectGetOwner(&pVM->vmm.s.CritSectVMLock); } /** * Checks if the current thread is the owner of the global VM lock. * * @returns true if owner. * @returns false if not owner. * @param pVM The VM to operate on. * * @remarks The global VMM lock isn't really used for anything any longer. */ VMMR3DECL(bool) VMMR3LockIsOwner(PVM pVM) { return RTCritSectIsOwner(&pVM->vmm.s.CritSectVMLock); } /** * Executes guest code in the raw-mode context. * * @param pVM VM handle. */ VMMR3DECL(int) VMMR3RawRunGC(PVM pVM) { Log2(("VMMR3RawRunGC: (cs:eip=%04x:%08x)\n", CPUMGetGuestCS(pVM), CPUMGetGuestEIP(pVM))); /* * Set the EIP and ESP. */ CPUMSetHyperEIP(pVM, CPUMGetGuestEFlags(pVM) & X86_EFL_VM ? pVM->vmm.s.pfnCPUMRCResumeGuestV86 : pVM->vmm.s.pfnCPUMRCResumeGuest); CPUMSetHyperESP(pVM, pVM->vmm.s.pbEMTStackBottomRC); /* * We hide log flushes (outer) and hypervisor interrupts (inner). */ for (;;) { int rc; do { #ifdef NO_SUPCALLR0VMM rc = VERR_GENERAL_FAILURE; #else rc = SUPCallVMMR0Fast(pVM->pVMR0, VMMR0_DO_RAW_RUN, 0); if (RT_LIKELY(rc == VINF_SUCCESS)) rc = pVM->vmm.s.iLastGZRc; #endif } while (rc == VINF_EM_RAW_INTERRUPT_HYPER); /* * Flush the logs. */ #ifdef LOG_ENABLED PRTLOGGERRC pLogger = pVM->vmm.s.pRCLoggerR3; if ( pLogger && pLogger->offScratch > 0) RTLogFlushRC(NULL, pLogger); #endif #ifdef VBOX_WITH_RC_RELEASE_LOGGING PRTLOGGERRC pRelLogger = pVM->vmm.s.pRCRelLoggerR3; if (RT_UNLIKELY(pRelLogger && pRelLogger->offScratch > 0)) RTLogFlushRC(RTLogRelDefaultInstance(), pRelLogger); #endif if (rc != VINF_VMM_CALL_HOST) { Log2(("VMMR3RawRunGC: returns %Rrc (cs:eip=%04x:%08x)\n", rc, CPUMGetGuestCS(pVM), CPUMGetGuestEIP(pVM))); return rc; } rc = vmmR3ServiceCallHostRequest(pVM); if (RT_FAILURE(rc)) return rc; /* Resume GC */ } } /** * Executes guest code (Intel VT-x and AMD-V). * * @param pVM VM handle. * @param idCpu VMCPU id. */ VMMR3DECL(int) VMMR3HwAccRunGC(PVM pVM, RTCPUID idCpu) { Log2(("VMMR3HwAccRunGC: (cs:eip=%04x:%08x)\n", CPUMGetGuestCS(pVM), CPUMGetGuestEIP(pVM))); for (;;) { int rc; do { #ifdef NO_SUPCALLR0VMM rc = VERR_GENERAL_FAILURE; #else rc = SUPCallVMMR0Fast(pVM->pVMR0, VMMR0_DO_HWACC_RUN, idCpu); if (RT_LIKELY(rc == VINF_SUCCESS)) rc = pVM->vmm.s.iLastGZRc; #endif } while (rc == VINF_EM_RAW_INTERRUPT_HYPER); #ifdef LOG_ENABLED /* * Flush the log */ PVMMR0LOGGER pR0LoggerR3 = pVM->vmm.s.pR0LoggerR3; if ( pR0LoggerR3 && pR0LoggerR3->Logger.offScratch > 0) RTLogFlushToLogger(&pR0LoggerR3->Logger, NULL); #endif /* !LOG_ENABLED */ if (rc != VINF_VMM_CALL_HOST) { Log2(("VMMR3HwAccRunGC: returns %Rrc (cs:eip=%04x:%08x)\n", rc, CPUMGetGuestCS(pVM), CPUMGetGuestEIP(pVM))); return rc; } rc = vmmR3ServiceCallHostRequest(pVM); if (RT_FAILURE(rc)) return rc; /* Resume R0 */ } } /** * Calls a RC function. * * @param pVM The VM handle. * @param RCPtrEntry The address of the RC function. * @param cArgs The number of arguments in the .... * @param ... Arguments to the function. */ VMMR3DECL(int) VMMR3CallRC(PVM pVM, RTRCPTR RCPtrEntry, unsigned cArgs, ...) { va_list args; va_start(args, cArgs); int rc = VMMR3CallRCV(pVM, RCPtrEntry, cArgs, args); va_end(args); return rc; } /** * Calls a RC function. * * @param pVM The VM handle. * @param RCPtrEntry The address of the RC function. * @param cArgs The number of arguments in the .... * @param args Arguments to the function. */ VMMR3DECL(int) VMMR3CallRCV(PVM pVM, RTRCPTR RCPtrEntry, unsigned cArgs, va_list args) { Log2(("VMMR3CallGCV: RCPtrEntry=%RRv cArgs=%d\n", RCPtrEntry, cArgs)); /* * Setup the call frame using the trampoline. */ CPUMHyperSetCtxCore(pVM, NULL); memset(pVM->vmm.s.pbEMTStackR3, 0xaa, VMM_STACK_SIZE); /* Clear the stack. */ CPUMSetHyperESP(pVM, pVM->vmm.s.pbEMTStackBottomRC - cArgs * sizeof(RTGCUINTPTR32)); PRTGCUINTPTR32 pFrame = (PRTGCUINTPTR32)(pVM->vmm.s.pbEMTStackR3 + VMM_STACK_SIZE) - cArgs; int i = cArgs; while (i-- > 0) *pFrame++ = va_arg(args, RTGCUINTPTR32); CPUMPushHyper(pVM, cArgs * sizeof(RTGCUINTPTR32)); /* stack frame size */ CPUMPushHyper(pVM, RCPtrEntry); /* what to call */ CPUMSetHyperEIP(pVM, pVM->vmm.s.pfnCallTrampolineRC); /* * We hide log flushes (outer) and hypervisor interrupts (inner). */ for (;;) { int rc; do { #ifdef NO_SUPCALLR0VMM rc = VERR_GENERAL_FAILURE; #else rc = SUPCallVMMR0Fast(pVM->pVMR0, VMMR0_DO_RAW_RUN, 0); if (RT_LIKELY(rc == VINF_SUCCESS)) rc = pVM->vmm.s.iLastGZRc; #endif } while (rc == VINF_EM_RAW_INTERRUPT_HYPER); /* * Flush the logs. */ #ifdef LOG_ENABLED PRTLOGGERRC pLogger = pVM->vmm.s.pRCLoggerR3; if ( pLogger && pLogger->offScratch > 0) RTLogFlushRC(NULL, pLogger); #endif #ifdef VBOX_WITH_RC_RELEASE_LOGGING PRTLOGGERRC pRelLogger = pVM->vmm.s.pRCRelLoggerR3; if (RT_UNLIKELY(pRelLogger && pRelLogger->offScratch > 0)) RTLogFlushRC(RTLogRelDefaultInstance(), pRelLogger); #endif if (rc == VERR_TRPM_PANIC || rc == VERR_TRPM_DONT_PANIC) VMMR3FatalDump(pVM, rc); if (rc != VINF_VMM_CALL_HOST) { Log2(("VMMR3CallGCV: returns %Rrc (cs:eip=%04x:%08x)\n", rc, CPUMGetGuestCS(pVM), CPUMGetGuestEIP(pVM))); return rc; } rc = vmmR3ServiceCallHostRequest(pVM); if (RT_FAILURE(rc)) return rc; } } /** * Resumes executing hypervisor code when interrupted by a queue flush or a * debug event. * * @returns VBox status code. * @param pVM VM handle. */ VMMR3DECL(int) VMMR3ResumeHyper(PVM pVM) { Log(("VMMR3ResumeHyper: eip=%RRv esp=%RRv\n", CPUMGetHyperEIP(pVM), CPUMGetHyperESP(pVM))); /* * We hide log flushes (outer) and hypervisor interrupts (inner). */ for (;;) { int rc; do { #ifdef NO_SUPCALLR0VMM rc = VERR_GENERAL_FAILURE; #else rc = SUPCallVMMR0Fast(pVM->pVMR0, VMMR0_DO_RAW_RUN, 0); if (RT_LIKELY(rc == VINF_SUCCESS)) rc = pVM->vmm.s.iLastGZRc; #endif } while (rc == VINF_EM_RAW_INTERRUPT_HYPER); /* * Flush the loggers, */ #ifdef LOG_ENABLED PRTLOGGERRC pLogger = pVM->vmm.s.pRCLoggerR3; if ( pLogger && pLogger->offScratch > 0) RTLogFlushRC(NULL, pLogger); #endif #ifdef VBOX_WITH_RC_RELEASE_LOGGING PRTLOGGERRC pRelLogger = pVM->vmm.s.pRCRelLoggerR3; if (RT_UNLIKELY(pRelLogger && pRelLogger->offScratch > 0)) RTLogFlushRC(RTLogRelDefaultInstance(), pRelLogger); #endif if (rc == VERR_TRPM_PANIC || rc == VERR_TRPM_DONT_PANIC) VMMR3FatalDump(pVM, rc); if (rc != VINF_VMM_CALL_HOST) { Log(("VMMR3ResumeHyper: returns %Rrc\n", rc)); return rc; } rc = vmmR3ServiceCallHostRequest(pVM); if (RT_FAILURE(rc)) return rc; } } /** * Service a call to the ring-3 host code. * * @returns VBox status code. * @param pVM VM handle. * @remark Careful with critsects. */ static int vmmR3ServiceCallHostRequest(PVM pVM) { switch (pVM->vmm.s.enmCallHostOperation) { /* * Acquire the PDM lock. */ case VMMCALLHOST_PDM_LOCK: { pVM->vmm.s.rcCallHost = PDMR3LockCall(pVM); break; } /* * Flush a PDM queue. */ case VMMCALLHOST_PDM_QUEUE_FLUSH: { PDMR3QueueFlushWorker(pVM, NULL); pVM->vmm.s.rcCallHost = VINF_SUCCESS; break; } /* * Grow the PGM pool. */ case VMMCALLHOST_PGM_POOL_GROW: { pVM->vmm.s.rcCallHost = PGMR3PoolGrow(pVM); break; } /* * Maps an page allocation chunk into ring-3 so ring-0 can use it. */ case VMMCALLHOST_PGM_MAP_CHUNK: { pVM->vmm.s.rcCallHost = PGMR3PhysChunkMap(pVM, pVM->vmm.s.u64CallHostArg); break; } /* * Allocates more handy pages. */ case VMMCALLHOST_PGM_ALLOCATE_HANDY_PAGES: { pVM->vmm.s.rcCallHost = PGMR3PhysAllocateHandyPages(pVM); break; } #ifndef VBOX_WITH_NEW_PHYS_CODE case VMMCALLHOST_PGM_RAM_GROW_RANGE: { const RTGCPHYS GCPhys = pVM->vmm.s.u64CallHostArg; pVM->vmm.s.rcCallHost = PGM3PhysGrowRange(pVM, &GCPhys); break; } #endif /* * Acquire the PGM lock. */ case VMMCALLHOST_PGM_LOCK: { pVM->vmm.s.rcCallHost = PGMR3LockCall(pVM); break; } /* * Flush REM handler notifications. */ case VMMCALLHOST_REM_REPLAY_HANDLER_NOTIFICATIONS: { REMR3ReplayHandlerNotifications(pVM); pVM->vmm.s.rcCallHost = VINF_SUCCESS; break; } /* * This is a noop. We just take this route to avoid unnecessary * tests in the loops. */ case VMMCALLHOST_VMM_LOGGER_FLUSH: pVM->vmm.s.rcCallHost = VINF_SUCCESS; break; /* * Set the VM error message. */ case VMMCALLHOST_VM_SET_ERROR: VMR3SetErrorWorker(pVM); pVM->vmm.s.rcCallHost = VINF_SUCCESS; break; /* * Set the VM runtime error message. */ case VMMCALLHOST_VM_SET_RUNTIME_ERROR: VMR3SetRuntimeErrorWorker(pVM); pVM->vmm.s.rcCallHost = VINF_SUCCESS; break; /* * Signal a ring 0 hypervisor assertion. * Cancel the longjmp operation that's in progress. */ case VMMCALLHOST_VM_R0_ASSERTION: pVM->vmm.s.enmCallHostOperation = VMMCALLHOST_INVALID; pVM->vmm.s.CallHostR0JmpBuf.fInRing3Call = false; #ifdef RT_ARCH_X86 pVM->vmm.s.CallHostR0JmpBuf.eip = 0; #else pVM->vmm.s.CallHostR0JmpBuf.rip = 0; #endif LogRel((pVM->vmm.s.szRing0AssertMsg1)); LogRel((pVM->vmm.s.szRing0AssertMsg2)); return VERR_VMM_RING0_ASSERTION; default: AssertMsgFailed(("enmCallHostOperation=%d\n", pVM->vmm.s.enmCallHostOperation)); return VERR_INTERNAL_ERROR; } pVM->vmm.s.enmCallHostOperation = VMMCALLHOST_INVALID; return VINF_SUCCESS; } /** * Displays the Force action Flags. * * @param pVM The VM handle. * @param pHlp The output helpers. * @param pszArgs The additional arguments (ignored). */ static DECLCALLBACK(void) vmmR3InfoFF(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs) { const uint32_t fForcedActions = pVM->fForcedActions; pHlp->pfnPrintf(pHlp, "Forced action Flags: %#RX32", fForcedActions); /* show the flag mnemonics */ int c = 0; uint32_t f = fForcedActions; #define PRINT_FLAG(flag) do { \ if (f & (flag)) \ { \ static const char *s_psz = #flag; \ if (!(c % 6)) \ pHlp->pfnPrintf(pHlp, "%s\n %s", c ? "," : "", s_psz + 6); \ else \ pHlp->pfnPrintf(pHlp, ", %s", s_psz + 6); \ c++; \ f &= ~(flag); \ } \ } while (0) PRINT_FLAG(VM_FF_INTERRUPT_APIC); PRINT_FLAG(VM_FF_INTERRUPT_PIC); PRINT_FLAG(VM_FF_TIMER); PRINT_FLAG(VM_FF_PDM_QUEUES); PRINT_FLAG(VM_FF_PDM_DMA); PRINT_FLAG(VM_FF_PDM_CRITSECT); PRINT_FLAG(VM_FF_DBGF); PRINT_FLAG(VM_FF_REQUEST); PRINT_FLAG(VM_FF_TERMINATE); PRINT_FLAG(VM_FF_RESET); PRINT_FLAG(VM_FF_PGM_SYNC_CR3); PRINT_FLAG(VM_FF_PGM_SYNC_CR3_NON_GLOBAL); PRINT_FLAG(VM_FF_TRPM_SYNC_IDT); PRINT_FLAG(VM_FF_SELM_SYNC_TSS); PRINT_FLAG(VM_FF_SELM_SYNC_GDT); PRINT_FLAG(VM_FF_SELM_SYNC_LDT); PRINT_FLAG(VM_FF_INHIBIT_INTERRUPTS); PRINT_FLAG(VM_FF_CSAM_SCAN_PAGE); PRINT_FLAG(VM_FF_CSAM_PENDING_ACTION); PRINT_FLAG(VM_FF_TO_R3); PRINT_FLAG(VM_FF_DEBUG_SUSPEND); if (f) pHlp->pfnPrintf(pHlp, "%s\n Unknown bits: %#RX32\n", c ? "," : "", f); else pHlp->pfnPrintf(pHlp, "\n"); #undef PRINT_FLAG /* the groups */ c = 0; #define PRINT_GROUP(grp) do { \ if (fForcedActions & (grp)) \ { \ static const char *s_psz = #grp; \ if (!(c % 5)) \ pHlp->pfnPrintf(pHlp, "%s %s", c ? ",\n" : "Groups:\n", s_psz + 6); \ else \ pHlp->pfnPrintf(pHlp, ", %s", s_psz + 6); \ c++; \ } \ } while (0) PRINT_GROUP(VM_FF_EXTERNAL_SUSPENDED_MASK); PRINT_GROUP(VM_FF_EXTERNAL_HALTED_MASK); PRINT_GROUP(VM_FF_HIGH_PRIORITY_PRE_MASK); PRINT_GROUP(VM_FF_HIGH_PRIORITY_PRE_RAW_MASK); PRINT_GROUP(VM_FF_HIGH_PRIORITY_POST_MASK); PRINT_GROUP(VM_FF_NORMAL_PRIORITY_POST_MASK); PRINT_GROUP(VM_FF_NORMAL_PRIORITY_MASK); PRINT_GROUP(VM_FF_RESUME_GUEST_MASK); PRINT_GROUP(VM_FF_ALL_BUT_RAW_MASK); if (c) pHlp->pfnPrintf(pHlp, "\n"); #undef PRINT_GROUP }