/** @file * HM - Intel/AMD VM Hardware Assisted Virtualization Manager (VMM) */ /* * Copyright (C) 2006-2014 Oracle Corporation * * 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. * * The contents of this file may alternatively be used under the terms * of the Common Development and Distribution License Version 1.0 * (CDDL) only, as it comes in the "COPYING.CDDL" file of the * VirtualBox OSE distribution, in which case the provisions of the * CDDL are applicable instead of those of the GPL. * * You may elect to license modified versions of this file under the * terms and conditions of either the GPL or the CDDL or both. */ #ifndef ___VBox_vmm_hm_h #define ___VBox_vmm_hm_h #include #include #include #include /** @defgroup grp_hm The VM Hardware Manager API * @{ */ RT_C_DECLS_BEGIN /** * Checks whether HM (VT-x/AMD-V) is being used by this VM. * * @retval @c true if used. * @retval @c false if software virtualization (raw-mode) is used. * * @param a_pVM The cross context VM structure. * @sa HMIsEnabledNotMacro, HMR3IsEnabled * @internal */ #if defined(VBOX_STRICT) && defined(IN_RING3) # define HMIsEnabled(a_pVM) HMIsEnabledNotMacro(a_pVM) #else # define HMIsEnabled(a_pVM) ((a_pVM)->fHMEnabled) #endif /** * Checks whether raw-mode context is required for any purpose. * * @retval @c true if required either by raw-mode itself or by HM for doing * switching the cpu to 64-bit mode. * @retval @c false if not required. * * @param a_pVM The cross context VM structure. * @internal */ #if HC_ARCH_BITS == 64 # define HMIsRawModeCtxNeeded(a_pVM) (!HMIsEnabled(a_pVM)) #else # define HMIsRawModeCtxNeeded(a_pVM) (!HMIsEnabled(a_pVM) || (a_pVM)->fHMNeedRawModeCtx) #endif /** * Check if the current CPU state is valid for emulating IO blocks in the recompiler * * @returns boolean * @param a_pVCpu Pointer to the shared virtual CPU structure. * @internal */ #define HMCanEmulateIoBlock(a_pVCpu) (!CPUMIsGuestInPagedProtectedMode(a_pVCpu)) /** * Check if the current CPU state is valid for emulating IO blocks in the recompiler * * @returns boolean * @param a_pCtx Pointer to the CPU context (within PVM). * @internal */ #define HMCanEmulateIoBlockEx(a_pCtx) (!CPUMIsGuestInPagedProtectedModeEx(a_pCtx)) /** * Checks whether we're in the special hardware virtualization context. * @returns true / false. * @param a_pVCpu The caller's cross context virtual CPU structure. * @thread EMT */ #ifdef IN_RING0 # define HMIsInHwVirtCtx(a_pVCpu) (VMCPU_GET_STATE(a_pVCpu) == VMCPUSTATE_STARTED_HM) #else # define HMIsInHwVirtCtx(a_pVCpu) (false) #endif /** * Checks whether we're in the special hardware virtualization context and we * cannot perform long jump without guru meditating and possibly messing up the * host and/or guest state. * * This is after we've turned interrupts off and such. * * @returns true / false. * @param a_pVCpu The caller's cross context virtual CPU structure. * @thread EMT */ #ifdef IN_RING0 # define HMIsInHwVirtNoLongJmpCtx(a_pVCpu) (VMCPU_GET_STATE(a_pVCpu) == VMCPUSTATE_STARTED_EXEC) #else # define HMIsInHwVirtNoLongJmpCtx(a_pVCpu) (false) #endif /** * 64-bit raw-mode (intermediate memory context) operations. * * These are special hypervisor eip values used when running 64-bit guests on * 32-bit hosts. Each operation corresponds to a routine. * * @note Duplicated in the assembly code! */ typedef enum HM64ON32OP { HM64ON32OP_INVALID = 0, HM64ON32OP_VMXRCStartVM64, HM64ON32OP_SVMRCVMRun64, HM64ON32OP_HMRCSaveGuestFPU64, HM64ON32OP_HMRCSaveGuestDebug64, HM64ON32OP_HMRCTestSwitcher64, HM64ON32OP_END, HM64ON32OP_32BIT_HACK = 0x7fffffff } HM64ON32OP; VMMDECL(bool) HMIsEnabledNotMacro(PVM pVM); VMM_INT_DECL(int) HMInvalidatePage(PVMCPU pVCpu, RTGCPTR GCVirt); VMM_INT_DECL(bool) HMHasPendingIrq(PVM pVM); VMM_INT_DECL(PX86PDPE) HMGetPaePdpes(PVMCPU pVCpu); VMM_INT_DECL(int) HMAmdIsSubjectToErratum170(uint32_t *pu32Family, uint32_t *pu32Model, uint32_t *pu32Stepping); VMM_INT_DECL(bool) HMSetSingleInstruction(PVMCPU pVCpu, bool fEnable); VMM_INT_DECL(int) HMPatchHypercall(PVM pVM, void *pvBuf, size_t cbBuf, size_t *pcbWritten); #ifndef IN_RC VMM_INT_DECL(int) HMFlushTLB(PVMCPU pVCpu); VMM_INT_DECL(int) HMFlushTLBOnAllVCpus(PVM pVM); VMM_INT_DECL(int) HMInvalidatePageOnAllVCpus(PVM pVM, RTGCPTR GCVirt); VMM_INT_DECL(int) HMInvalidatePhysPage(PVM pVM, RTGCPHYS GCPhys); VMM_INT_DECL(bool) HMIsNestedPagingActive(PVM pVM); VMM_INT_DECL(bool) HMIsLongModeAllowed(PVM pVM); VMM_INT_DECL(bool) HMAreMsrBitmapsAvailable(PVM pVM); VMM_INT_DECL(PGMMODE) HMGetShwPagingMode(PVM pVM); #else /* Nops in RC: */ # define HMFlushTLB(pVCpu) do { } while (0) # define HMIsNestedPagingActive(pVM) false # define HMIsLongModeAllowed(pVM) false # define HMAreMsrBitmapsAvailable(pVM) false # define HMFlushTLBOnAllVCpus(pVM) do { } while (0) #endif #ifdef IN_RING0 /** @defgroup grp_hm_r0 The VM Hardware Manager API * @ingroup grp_hm * @{ */ VMMR0_INT_DECL(int) HMR0Init(void); VMMR0_INT_DECL(int) HMR0Term(void); VMMR0_INT_DECL(int) HMR0InitVM(PVM pVM); VMMR0_INT_DECL(int) HMR0TermVM(PVM pVM); VMMR0_INT_DECL(int) HMR0EnableAllCpus(PVM pVM); VMMR0_INT_DECL(int) HMR0EnterSwitcher(PVM pVM, VMMSWITCHER enmSwitcher, bool *pfVTxDisabled); VMMR0_INT_DECL(void) HMR0LeaveSwitcher(PVM pVM, bool fVTxDisabled); VMMR0_INT_DECL(void) HMR0SavePendingIOPortWrite(PVMCPU pVCpu, RTGCPTR GCPtrRip, RTGCPTR GCPtrRipNext, unsigned uPort, unsigned uAndVal, unsigned cbSize); VMMR0_INT_DECL(void) HMR0SavePendingIOPortRead(PVMCPU pVCpu, RTGCPTR GCPtrRip, RTGCPTR GCPtrRipNext, unsigned uPort, unsigned uAndVal, unsigned cbSize); /** @} */ #endif /* IN_RING0 */ #ifdef IN_RING3 /** @defgroup grp_hm_r3 The VM Hardware Manager API * @ingroup grp_hm * @{ */ VMMR3DECL(bool) HMR3IsEnabled(PUVM pUVM); VMMR3DECL(bool) HMR3IsNestedPagingActive(PUVM pUVM); VMMR3DECL(bool) HMR3IsVpidActive(PUVM pUVM); VMMR3DECL(bool) HMR3IsUXActive(PUVM pUVM); VMMR3DECL(bool) HMR3IsSvmEnabled(PUVM pUVM); VMMR3DECL(bool) HMR3IsVmxEnabled(PUVM pUVM); VMMR3_INT_DECL(bool) HMR3IsEventPending(PVMCPU pVCpu); VMMR3_INT_DECL(int) HMR3Init(PVM pVM); VMMR3_INT_DECL(int) HMR3InitCompleted(PVM pVM, VMINITCOMPLETED enmWhat); VMMR3_INT_DECL(void) HMR3Relocate(PVM pVM); VMMR3_INT_DECL(int) HMR3Term(PVM pVM); VMMR3_INT_DECL(void) HMR3Reset(PVM pVM); VMMR3_INT_DECL(void) HMR3ResetCpu(PVMCPU pVCpu); VMMR3_INT_DECL(void) HMR3CheckError(PVM pVM, int iStatusCode); VMMR3DECL(bool) HMR3CanExecuteGuest(PVM pVM, PCPUMCTX pCtx); VMMR3_INT_DECL(void) HMR3NotifyScheduled(PVMCPU pVCpu); VMMR3_INT_DECL(void) HMR3NotifyEmulated(PVMCPU pVCpu); VMMR3_INT_DECL(bool) HMR3IsActive(PVMCPU pVCpu); VMMR3_INT_DECL(void) HMR3PagingModeChanged(PVM pVM, PVMCPU pVCpu, PGMMODE enmShadowMode, PGMMODE enmGuestMode); VMMR3_INT_DECL(int) HMR3EmulateIoBlock(PVM pVM, PCPUMCTX pCtx); VMMR3_INT_DECL(VBOXSTRICTRC) HMR3RestartPendingIOInstr(PVM pVM, PVMCPU pVCpu, PCPUMCTX pCtx); VMMR3_INT_DECL(int) HMR3EnablePatching(PVM pVM, RTGCPTR pPatchMem, unsigned cbPatchMem); VMMR3_INT_DECL(int) HMR3DisablePatching(PVM pVM, RTGCPTR pPatchMem, unsigned cbPatchMem); VMMR3_INT_DECL(int) HMR3PatchTprInstr(PVM pVM, PVMCPU pVCpu, PCPUMCTX pCtx); VMMR3_INT_DECL(bool) HMR3IsRescheduleRequired(PVM pVM, PCPUMCTX pCtx); VMMR3_INT_DECL(bool) HMR3IsVmxPreemptionTimerUsed(PVM pVM); /** @} */ #endif /* IN_RING3 */ #ifdef IN_RING0 /** @addtogroup grp_hm_r0 * @{ */ /** Disables preemption if required. */ # define HM_DISABLE_PREEMPT_IF_NEEDED() \ RTTHREADPREEMPTSTATE PreemptStateInternal = RTTHREADPREEMPTSTATE_INITIALIZER; \ bool fPreemptDisabledInternal = false; \ if (RTThreadPreemptIsEnabled(NIL_RTTHREAD)) \ { \ Assert(VMMR0ThreadCtxHooksAreRegistered(pVCpu)); \ RTThreadPreemptDisable(&PreemptStateInternal); \ fPreemptDisabledInternal = true; \ } /** Restores preemption if previously disabled by HM_DISABLE_PREEMPT(). */ # define HM_RESTORE_PREEMPT_IF_NEEDED() \ do \ { \ if (fPreemptDisabledInternal) \ RTThreadPreemptRestore(&PreemptStateInternal); \ } while (0) VMMR0_INT_DECL(int) HMR0SetupVM(PVM pVM); VMMR0_INT_DECL(int) HMR0RunGuestCode(PVM pVM, PVMCPU pVCpu); VMMR0_INT_DECL(int) HMR0Enter(PVM pVM, PVMCPU pVCpu); VMMR0_INT_DECL(int) HMR0EnterCpu(PVMCPU pVCpu); VMMR0_INT_DECL(int) HMR0LeaveCpu(PVMCPU pVCpu); VMMR0_INT_DECL(void) HMR0ThreadCtxCallback(RTTHREADCTXEVENT enmEvent, void *pvUser); VMMR0_INT_DECL(bool) HMR0SuspendPending(void); # if HC_ARCH_BITS == 32 && defined(VBOX_WITH_64_BITS_GUESTS) VMMR0_INT_DECL(int) HMR0SaveFPUState(PVM pVM, PVMCPU pVCpu, PCPUMCTX pCtx); VMMR0_INT_DECL(int) HMR0SaveDebugState(PVM pVM, PVMCPU pVCpu, PCPUMCTX pCtx); VMMR0_INT_DECL(int) HMR0TestSwitcher3264(PVM pVM); # endif /** @} */ #endif /* IN_RING0 */ /** @} */ RT_C_DECLS_END #endif