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| -rw-r--r-- | include/VBox/vmm/hm.h | 336 |
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diff --git a/include/VBox/vmm/hm.h b/include/VBox/vmm/hm.h new file mode 100644 index 00000000..2dc1d976 --- /dev/null +++ b/include/VBox/vmm/hm.h @@ -0,0 +1,336 @@ +/** @file + * HM - Intel/AMD VM Hardware Assisted Virtualization Manager (VMM) + */ + +/* + * Copyright (C) 2006-2022 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 <https://www.gnu.org/licenses>. + * + * 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 <VBox/vmm/pgm.h> +#include <VBox/vmm/cpum.h> +#include <VBox/vmm/vmm.h> +#include <VBox/vmm/hm_svm.h> +#include <VBox/vmm/hm_vmx.h> +#include <VBox/vmm/trpm.h> +#include <iprt/mp.h> + + +/** @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); +VMMR3_INT_DECL(bool) HMR3IsActive(PCVMCPU pVCpu); +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 */ + |