/** @file * HM - Intel/AMD VM Hardware Assisted Virtualization Manager (VMM) */ /* * Copyright (C) 2006-2023 Oracle and/or its affiliates. * * This file is part of VirtualBox base platform packages, as * available from https://www.virtualbox.org. * * This program 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 3 of the * License. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, see . * * The contents of this file may alternatively be used under the terms * of the Common Development and Distribution License Version 1.0 * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included * in the VirtualBox 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. * * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0 */ #ifndef VBOX_INCLUDED_vmm_hm_h #define VBOX_INCLUDED_vmm_hm_h #ifndef RT_WITHOUT_PRAGMA_ONCE # pragma once #endif #include #include #include #include #include #include #include /** @defgroup grp_hm The Hardware Assisted Virtualization Manager API * @ingroup grp_vmm * @{ */ RT_C_DECLS_BEGIN /** * Checks whether HM (VT-x/AMD-V) is being used by this VM. * * @retval true if used. * @retval false if software virtualization (raw-mode) or NEM is used. * * @param a_pVM The cross context VM structure. * @deprecated Please use VM_IS_RAW_MODE_ENABLED, VM_IS_HM_OR_NEM_ENABLED, or * VM_IS_HM_ENABLED instead. * @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 HM purposes * * @retval true if required by HM for doing switching the cpu to 64-bit mode. * @retval false if not required by HM. * * @param a_pVM The cross context VM structure. * @internal */ #if HC_ARCH_BITS == 64 # define HMIsRawModeCtxNeeded(a_pVM) (false) #else # define HMIsRawModeCtxNeeded(a_pVM) ((a_pVM)->fHMNeedRawModeCtx) #endif /** * 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 /** @name All-context HM API. * @{ */ VMMDECL(bool) HMIsEnabledNotMacro(PVM pVM); VMMDECL(bool) HMCanExecuteGuest(PVMCC pVM, PVMCPUCC pVCpu, PCCPUMCTX pCtx); VMM_INT_DECL(int) HMInvalidatePage(PVMCPUCC pVCpu, RTGCPTR GCVirt); VMM_INT_DECL(bool) HMHasPendingIrq(PVMCC pVM); VMM_INT_DECL(bool) HMSetSingleInstruction(PVMCC pVM, PVMCPUCC pVCpu, bool fEnable); VMM_INT_DECL(bool) HMIsSvmActive(PVM pVM); VMM_INT_DECL(bool) HMIsVmxActive(PVM pVM); VMM_INT_DECL(const char *) HMGetVmxDiagDesc(VMXVDIAG enmDiag); VMM_INT_DECL(const char *) HMGetVmxExitName(uint32_t uExit); VMM_INT_DECL(const char *) HMGetSvmExitName(uint32_t uExit); VMM_INT_DECL(void) HMDumpHwvirtVmxState(PVMCPU pVCpu); VMM_INT_DECL(void) HMHCChangedPagingMode(PVM pVM, PVMCPUCC pVCpu, PGMMODE enmShadowMode, PGMMODE enmGuestMode); VMM_INT_DECL(void) HMGetVmxMsrsFromHwvirtMsrs(PCSUPHWVIRTMSRS pMsrs, PVMXMSRS pVmxMsrs); VMM_INT_DECL(void) HMGetSvmMsrsFromHwvirtMsrs(PCSUPHWVIRTMSRS pMsrs, PSVMMSRS pSvmMsrs); /** @} */ /** @name All-context VMX helpers. * * These are hardware-assisted VMX functions (used by IEM/REM/CPUM and HM). Helpers * based purely on the Intel VT-x specification (used by IEM/REM and HM) can be * found in CPUM. * @{ */ #if defined(RT_ARCH_AMD64) || defined(RT_ARCH_X86) VMM_INT_DECL(bool) HMIsSubjectToVmxPreemptTimerErratum(void); #endif VMM_INT_DECL(bool) HMCanExecuteVmxGuest(PVMCC pVM, PVMCPUCC pVCpu, PCCPUMCTX pCtx); VMM_INT_DECL(TRPMEVENT) HMVmxEventTypeToTrpmEventType(uint32_t uIntInfo); VMM_INT_DECL(uint32_t) HMTrpmEventTypeToVmxEventType(uint8_t uVector, TRPMEVENT enmTrpmEvent, bool fIcebp); /** @} */ /** @name All-context SVM helpers. * * These are hardware-assisted SVM functions (used by IEM/REM/CPUM and HM). Helpers * based purely on the AMD SVM specification (used by IEM/REM and HM) can be found * in CPUM. * @{ */ VMM_INT_DECL(TRPMEVENT) HMSvmEventToTrpmEventType(PCSVMEVENT pSvmEvent, uint8_t uVector); /** @} */ #ifndef IN_RC /** @name R0, R3 HM (VMX/SVM agnostic) handlers. * @{ */ VMM_INT_DECL(int) HMFlushTlb(PVMCPU pVCpu); VMM_INT_DECL(int) HMFlushTlbOnAllVCpus(PVMCC pVM); VMM_INT_DECL(int) HMInvalidatePageOnAllVCpus(PVMCC pVM, RTGCPTR GCVirt); VMM_INT_DECL(int) HMInvalidatePhysPage(PVMCC pVM, RTGCPHYS GCPhys); VMM_INT_DECL(bool) HMAreNestedPagingAndFullGuestExecEnabled(PVMCC pVM); VMM_INT_DECL(bool) HMIsLongModeAllowed(PVMCC pVM); VMM_INT_DECL(bool) HMIsNestedPagingActive(PVMCC pVM); VMM_INT_DECL(bool) HMIsMsrBitmapActive(PVM pVM); # ifdef VBOX_WITH_NESTED_HWVIRT_VMX VMM_INT_DECL(void) HMNotifyVmxNstGstVmexit(PVMCPU pVCpu); VMM_INT_DECL(void) HMNotifyVmxNstGstCurrentVmcsChanged(PVMCPU pVCpu); # endif /** @} */ /** @name R0, R3 SVM handlers. * @{ */ VMM_INT_DECL(bool) HMIsSvmVGifActive(PCVMCC pVM); # ifdef VBOX_WITH_NESTED_HWVIRT_SVM VMM_INT_DECL(void) HMNotifySvmNstGstVmexit(PVMCPUCC pVCpu, PCPUMCTX pCtx); # endif # if defined(RT_ARCH_AMD64) || defined(RT_ARCH_X86) VMM_INT_DECL(int) HMIsSubjectToSvmErratum170(uint32_t *pu32Family, uint32_t *pu32Model, uint32_t *pu32Stepping); # endif VMM_INT_DECL(int) HMHCMaybeMovTprSvmHypercall(PVMCC pVM, PVMCPUCC pVCpu); /** @} */ #else /* Nops in RC: */ /** @name RC HM (VMX/SVM agnostic) handlers. * @{ */ # define HMFlushTlb(pVCpu) do { } while (0) # define HMFlushTlbOnAllVCpus(pVM) do { } while (0) # define HMInvalidatePageOnAllVCpus(pVM, GCVirt) do { } while (0) # define HMInvalidatePhysPage(pVM, GCVirt) do { } while (0) # define HMAreNestedPagingAndFullGuestExecEnabled(pVM) false # define HMIsLongModeAllowed(pVM) false # define HMIsNestedPagingActive(pVM) false # define HMIsMsrBitmapsActive(pVM) false /** @} */ /** @name RC SVM handlers. * @{ */ # define HMIsSvmVGifActive(pVM) false # define HMNotifySvmNstGstVmexit(pVCpu, pCtx) do { } while (0) # if defined(RT_ARCH_AMD64) || defined(RT_ARCH_X86) # define HMIsSubjectToSvmErratum170(puFamily, puModel, puStepping) false # endif # define HMHCMaybeMovTprSvmHypercall(pVM, pVCpu) do { } while (0) /** @} */ #endif /** @name HMVMX_READ_XXX - Flags for reading auxiliary VM-exit VMCS fields. * * These flags allow reading VMCS fields that are not necessarily part of the * guest-CPU state but are needed while handling VM-exits. * * @note If you add any fields here, make sure to update VMXR0GetExitAuxInfo. * * @{ */ #define HMVMX_READ_IDT_VECTORING_INFO RT_BIT_32(0) #define HMVMX_READ_IDT_VECTORING_ERROR_CODE RT_BIT_32(1) #define HMVMX_READ_EXIT_QUALIFICATION RT_BIT_32(2) #define HMVMX_READ_EXIT_INSTR_LEN RT_BIT_32(3) #define HMVMX_READ_EXIT_INTERRUPTION_INFO RT_BIT_32(4) #define HMVMX_READ_EXIT_INTERRUPTION_ERROR_CODE RT_BIT_32(5) #define HMVMX_READ_EXIT_INSTR_INFO RT_BIT_32(6) #define HMVMX_READ_GUEST_LINEAR_ADDR RT_BIT_32(7) #define HMVMX_READ_GUEST_PHYSICAL_ADDR RT_BIT_32(8) #define HMVMX_READ_GUEST_PENDING_DBG_XCPTS RT_BIT_32(9) /** All the VMCS fields required for processing of exception/NMI VM-exits. */ #define HMVMX_READ_XCPT_INFO ( HMVMX_READ_EXIT_INTERRUPTION_INFO \ | HMVMX_READ_EXIT_INTERRUPTION_ERROR_CODE \ | HMVMX_READ_EXIT_INSTR_LEN \ | HMVMX_READ_IDT_VECTORING_INFO \ | HMVMX_READ_IDT_VECTORING_ERROR_CODE) /** Mask of all valid HMVMX_READ_XXX flags. */ #define HMVMX_READ_VALID_MASK ( HMVMX_READ_IDT_VECTORING_INFO \ | HMVMX_READ_IDT_VECTORING_ERROR_CODE \ | HMVMX_READ_EXIT_QUALIFICATION \ | HMVMX_READ_EXIT_INSTR_LEN \ | HMVMX_READ_EXIT_INTERRUPTION_INFO \ | HMVMX_READ_EXIT_INTERRUPTION_ERROR_CODE \ | HMVMX_READ_EXIT_INSTR_INFO \ | HMVMX_READ_GUEST_LINEAR_ADDR \ | HMVMX_READ_GUEST_PHYSICAL_ADDR \ | HMVMX_READ_GUEST_PENDING_DBG_XCPTS) /** @} */ #ifdef IN_RING0 /** @defgroup grp_hm_r0 The HM ring-0 Context API * @{ */ /** * HM VM-exit auxiliary info. */ typedef union { /** VMX VM-exit auxiliary info. */ VMXEXITAUX Vmx; /** SVM \#VMEXIT auxiliary info. */ SVMEXITAUX Svm; } HMEXITAUX; /** Pointer to HM-exit auxiliary info union. */ typedef HMEXITAUX *PHMEXITAUX; /** Pointer to a const HM-exit auxiliary info union. */ typedef const HMEXITAUX *PCHMEXITAUX; VMMR0_INT_DECL(int) HMR0Init(void); VMMR0_INT_DECL(int) HMR0Term(void); VMMR0_INT_DECL(int) HMR0InitVM(PVMCC pVM); VMMR0_INT_DECL(int) HMR0TermVM(PVMCC pVM); VMMR0_INT_DECL(int) HMR0EnableAllCpus(PVMCC pVM); # ifdef VBOX_WITH_RAW_MODE VMMR0_INT_DECL(int) HMR0EnterSwitcher(PVMCC pVM, VMMSWITCHER enmSwitcher, bool *pfVTxDisabled); VMMR0_INT_DECL(void) HMR0LeaveSwitcher(PVMCC pVM, bool fVTxDisabled); # endif VMMR0_INT_DECL(int) HMR0SetupVM(PVMCC pVM); VMMR0_INT_DECL(int) HMR0RunGuestCode(PVMCC pVM, PVMCPUCC pVCpu); VMMR0_INT_DECL(int) HMR0Enter(PVMCPUCC pVCpu); VMMR0_INT_DECL(int) HMR0LeaveCpu(PVMCPUCC pVCpu); VMMR0_INT_DECL(void) HMR0ThreadCtxCallback(RTTHREADCTXEVENT enmEvent, void *pvUser); VMMR0_INT_DECL(void) HMR0NotifyCpumUnloadedGuestFpuState(PVMCPUCC VCpu); VMMR0_INT_DECL(void) HMR0NotifyCpumModifiedHostCr0(PVMCPUCC VCpu); VMMR0_INT_DECL(bool) HMR0SuspendPending(void); VMMR0_INT_DECL(int) HMR0InvalidatePage(PVMCPUCC pVCpu, RTGCPTR GCVirt); VMMR0_INT_DECL(int) HMR0ImportStateOnDemand(PVMCPUCC pVCpu, uint64_t fWhat); VMMR0_INT_DECL(int) HMR0GetExitAuxInfo(PVMCPUCC pVCpu, PHMEXITAUX pHmExitAux, uint32_t fWhat); /** @} */ #endif /* IN_RING0 */ #ifdef IN_RING3 /** @defgroup grp_hm_r3 The HM ring-3 Context API * @{ */ VMMR3DECL(bool) HMR3IsEnabled(PUVM pUVM); VMMR3DECL(bool) HMR3IsNestedPagingActive(PUVM pUVM); VMMR3DECL(bool) HMR3AreVirtApicRegsEnabled(PUVM pUVM); VMMR3DECL(bool) HMR3IsPostedIntrsEnabled(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(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); VMMR3_INT_DECL(void) HMR3NotifyDebugEventChanged(PVM pVM); VMMR3_INT_DECL(void) HMR3NotifyDebugEventChangedPerCpu(PVM pVM, PVMCPU pVCpu); # if 0 /* evil */ VMMR3_INT_DECL(bool) HMR3IsActive(PCVMCPU pVCpu); # endif 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); VMMR3_INT_DECL(bool) HMR3IsRescheduleRequired(PVM pVM, PCCPUMCTX pCtx); VMMR3_INT_DECL(bool) HMR3IsVmxPreemptionTimerUsed(PVM pVM); /** @} */ #endif /* IN_RING3 */ /** @} */ RT_C_DECLS_END #endif /* !VBOX_INCLUDED_vmm_hm_h */