| 1 | /** @file
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| 2 | * HM - Intel/AMD VM Hardware Assisted Virtualization Manager (VMM)
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| 3 | */
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| 4 |
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| 5 | /*
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| 6 | * Copyright (C) 2006-2013 Oracle Corporation
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| 7 | *
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| 8 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 9 | * available from http://www.virtualbox.org. This file is free software;
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| 10 | * you can redistribute it and/or modify it under the terms of the GNU
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| 11 | * General Public License (GPL) as published by the Free Software
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| 12 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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| 13 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 14 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 15 | *
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| 16 | * The contents of this file may alternatively be used under the terms
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| 17 | * of the Common Development and Distribution License Version 1.0
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| 18 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
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| 19 | * VirtualBox OSE distribution, in which case the provisions of the
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| 20 | * CDDL are applicable instead of those of the GPL.
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| 21 | *
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| 22 | * You may elect to license modified versions of this file under the
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| 23 | * terms and conditions of either the GPL or the CDDL or both.
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| 24 | */
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| 25 |
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| 26 | #ifndef ___VBox_vmm_hm_h
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| 27 | #define ___VBox_vmm_hm_h
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| 28 |
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| 29 | #include <VBox/vmm/pgm.h>
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| 30 | #include <VBox/vmm/cpum.h>
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| 31 | #include <VBox/vmm/vmm.h>
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| 32 | #include <iprt/mp.h>
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| 33 |
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| 34 |
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| 35 | /** @defgroup grp_hm The VM Hardware Manager API
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| 36 | * @{
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| 37 | */
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| 38 |
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| 39 | RT_C_DECLS_BEGIN
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| 40 |
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| 41 | /**
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| 42 | * Checks whether HM (VT-x/AMD-V) is being used by this VM.
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| 43 | *
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| 44 | * @retval @c true if used.
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| 45 | * @retval @c false if software virtualization (raw-mode) is used.
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| 46 | *
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| 47 | * @param a_pVM The cross context VM structure.
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| 48 | * @sa HMIsEnabledNotMacro, HMR3IsEnabled
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| 49 | * @internal
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| 50 | */
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| 51 | #if defined(VBOX_STRICT) && defined(IN_RING3)
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| 52 | # define HMIsEnabled(a_pVM) HMIsEnabledNotMacro(a_pVM)
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| 53 | #else
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| 54 | # define HMIsEnabled(a_pVM) ((a_pVM)->fHMEnabled)
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| 55 | #endif
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| 56 |
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| 57 | /**
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| 58 | * Checks whether raw-mode context is required for any purpose.
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| 59 | *
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| 60 | * @retval @c true if required either by raw-mode itself or by HM for doing
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| 61 | * switching the cpu to 64-bit mode.
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| 62 | * @retval @c false if not required.
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| 63 | *
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| 64 | * @param a_pVM The cross context VM structure.
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| 65 | * @internal
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| 66 | */
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| 67 | #if HC_ARCH_BITS == 64
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| 68 | # define HMIsRawModeCtxNeeded(a_pVM) (!HMIsEnabled(a_pVM))
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| 69 | #else
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| 70 | # define HMIsRawModeCtxNeeded(a_pVM) (!HMIsEnabled(a_pVM) || (a_pVM)->fHMNeedRawModeCtx)
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| 71 | #endif
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| 72 |
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| 73 | /**
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| 74 | * Check if the current CPU state is valid for emulating IO blocks in the recompiler
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| 75 | *
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| 76 | * @returns boolean
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| 77 | * @param a_pVCpu Pointer to the shared virtual CPU structure.
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| 78 | * @internal
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| 79 | */
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| 80 | #define HMCanEmulateIoBlock(a_pVCpu) (!CPUMIsGuestInPagedProtectedMode(a_pVCpu))
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| 81 |
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| 82 | /**
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| 83 | * Check if the current CPU state is valid for emulating IO blocks in the recompiler
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| 84 | *
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| 85 | * @returns boolean
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| 86 | * @param a_pCtx Pointer to the CPU context (within PVM).
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| 87 | * @internal
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| 88 | */
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| 89 | #define HMCanEmulateIoBlockEx(a_pCtx) (!CPUMIsGuestInPagedProtectedModeEx(a_pCtx))
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| 90 |
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| 91 | /**
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| 92 | * Checks whether we're in the special hardware virtualization context.
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| 93 | * @returns true / false.
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| 94 | * @param a_pVCpu The caller's cross context virtual CPU structure.
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| 95 | * @thread EMT
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| 96 | */
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| 97 | #ifdef IN_RING0
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| 98 | # define HMIsInHwVirtCtx(a_pVCpu) (VMCPU_GET_STATE(a_pVCpu) == VMCPUSTATE_STARTED_HM)
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| 99 | #else
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| 100 | # define HMIsInHwVirtCtx(a_pVCpu) (false)
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| 101 | #endif
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| 102 |
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| 103 | /**
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| 104 | * Checks whether we're in the special hardware virtualization context and we
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| 105 | * cannot perform long jump without guru meditating and possibly messing up the
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| 106 | * host and/or guest state.
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| 107 | *
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| 108 | * This is after we've turned interrupts off and such.
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| 109 | *
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| 110 | * @returns true / false.
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| 111 | * @param a_pVCpu The caller's cross context virtual CPU structure.
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| 112 | * @thread EMT
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| 113 | */
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| 114 | #ifdef IN_RING0
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| 115 | # define HMIsInHwVirtNoLongJmpCtx(a_pVCpu) (VMCPU_GET_STATE(a_pVCpu) == VMCPUSTATE_STARTED_EXEC)
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| 116 | #else
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| 117 | # define HMIsInHwVirtNoLongJmpCtx(a_pVCpu) (false)
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| 118 | #endif
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| 119 |
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| 120 |
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| 121 | VMMDECL(bool) HMIsEnabledNotMacro(PVM pVM);
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| 122 | VMM_INT_DECL(int) HMInvalidatePage(PVMCPU pVCpu, RTGCPTR GCVirt);
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| 123 | VMM_INT_DECL(bool) HMHasPendingIrq(PVM pVM);
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| 124 | VMM_INT_DECL(PX86PDPE) HMGetPaePdpes(PVMCPU pVCpu);
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| 125 |
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| 126 | #ifndef IN_RC
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| 127 | VMM_INT_DECL(int) HMFlushTLB(PVMCPU pVCpu);
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| 128 | VMM_INT_DECL(int) HMFlushTLBOnAllVCpus(PVM pVM);
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| 129 | VMM_INT_DECL(int) HMInvalidatePageOnAllVCpus(PVM pVM, RTGCPTR GCVirt);
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| 130 | VMM_INT_DECL(int) HMInvalidatePhysPage(PVM pVM, RTGCPHYS GCPhys);
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| 131 | VMM_INT_DECL(bool) HMIsNestedPagingActive(PVM pVM);
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| 132 | VMM_INT_DECL(PGMMODE) HMGetShwPagingMode(PVM pVM);
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| 133 | #else /* Nops in RC: */
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| 134 | # define HMFlushTLB(pVCpu) do { } while (0)
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| 135 | # define HMIsNestedPagingActive(pVM) false
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| 136 | # define HMFlushTLBOnAllVCpus(pVM) do { } while (0)
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| 137 | #endif
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| 138 |
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| 139 | #ifdef IN_RING0
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| 140 | /** @defgroup grp_hm_r0 The VM Hardware Manager API
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| 141 | * @ingroup grp_hm
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| 142 | * @{
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| 143 | */
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| 144 | VMMR0_INT_DECL(int) HMR0Init(void);
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| 145 | VMMR0_INT_DECL(int) HMR0Term(void);
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| 146 | VMMR0_INT_DECL(int) HMR0InitVM(PVM pVM);
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| 147 | VMMR0_INT_DECL(int) HMR0TermVM(PVM pVM);
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| 148 | VMMR0_INT_DECL(int) HMR0EnableAllCpus(PVM pVM);
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| 149 | VMMR0_INT_DECL(int) HMR0EnterSwitcher(PVM pVM, VMMSWITCHER enmSwitcher, bool *pfVTxDisabled);
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| 150 | VMMR0_INT_DECL(void) HMR0LeaveSwitcher(PVM pVM, bool fVTxDisabled);
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| 151 |
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| 152 | VMMR0_INT_DECL(void) HMR0SavePendingIOPortWrite(PVMCPU pVCpu, RTGCPTR GCPtrRip, RTGCPTR GCPtrRipNext,
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| 153 | unsigned uPort, unsigned uAndVal, unsigned cbSize);
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| 154 | VMMR0_INT_DECL(void) HMR0SavePendingIOPortRead(PVMCPU pVCpu, RTGCPTR GCPtrRip, RTGCPTR GCPtrRipNext,
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| 155 | unsigned uPort, unsigned uAndVal, unsigned cbSize);
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| 156 |
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| 157 | /** @} */
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| 158 | #endif /* IN_RING0 */
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| 159 |
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| 160 |
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| 161 | #ifdef IN_RING3
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| 162 | /** @defgroup grp_hm_r3 The VM Hardware Manager API
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| 163 | * @ingroup grp_hm
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| 164 | * @{
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| 165 | */
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| 166 | VMMR3DECL(bool) HMR3IsEnabled(PUVM pUVM);
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| 167 | VMMR3DECL(bool) HMR3IsNestedPagingActive(PUVM pUVM);
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| 168 | VMMR3DECL(bool) HMR3IsVpidActive(PUVM pVUM);
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| 169 |
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| 170 | VMMR3_INT_DECL(bool) HMR3IsEventPending(PVMCPU pVCpu);
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| 171 | VMMR3_INT_DECL(int) HMR3Init(PVM pVM);
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| 172 | VMMR3_INT_DECL(int) HMR3InitCompleted(PVM pVM, VMINITCOMPLETED enmWhat);
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| 173 | VMMR3_INT_DECL(void) HMR3Relocate(PVM pVM);
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| 174 | VMMR3_INT_DECL(int) HMR3Term(PVM pVM);
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| 175 | VMMR3_INT_DECL(void) HMR3Reset(PVM pVM);
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| 176 | VMMR3_INT_DECL(void) HMR3ResetCpu(PVMCPU pVCpu);
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| 177 | VMMR3_INT_DECL(void) HMR3CheckError(PVM pVM, int iStatusCode);
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| 178 | VMMR3DECL(bool) HMR3CanExecuteGuest(PVM pVM, PCPUMCTX pCtx);
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| 179 | VMMR3_INT_DECL(void) HMR3NotifyScheduled(PVMCPU pVCpu);
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| 180 | VMMR3_INT_DECL(void) HMR3NotifyEmulated(PVMCPU pVCpu);
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| 181 | VMMR3_INT_DECL(bool) HMR3IsActive(PVMCPU pVCpu);
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| 182 | VMMR3_INT_DECL(void) HMR3PagingModeChanged(PVM pVM, PVMCPU pVCpu, PGMMODE enmShadowMode, PGMMODE enmGuestMode);
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| 183 | VMMR3_INT_DECL(int) HMR3EmulateIoBlock(PVM pVM, PCPUMCTX pCtx);
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| 184 | VMMR3_INT_DECL(VBOXSTRICTRC) HMR3RestartPendingIOInstr(PVM pVM, PVMCPU pVCpu, PCPUMCTX pCtx);
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| 185 | VMMR3_INT_DECL(int) HMR3EnablePatching(PVM pVM, RTGCPTR pPatchMem, unsigned cbPatchMem);
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| 186 | VMMR3_INT_DECL(int) HMR3DisablePatching(PVM pVM, RTGCPTR pPatchMem, unsigned cbPatchMem);
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| 187 | VMMR3_INT_DECL(int) HMR3PatchTprInstr(PVM pVM, PVMCPU pVCpu, PCPUMCTX pCtx);
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| 188 | VMMR3_INT_DECL(bool) HMR3IsRescheduleRequired(PVM pVM, PCPUMCTX pCtx);
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| 189 | VMMR3_INT_DECL(bool) HMR3IsVmxPreemptionTimerUsed(PVM pVM);
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| 190 |
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| 191 | /** @} */
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| 192 | #endif /* IN_RING3 */
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| 193 |
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| 194 | #ifdef IN_RING0
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| 195 | /** @addtogroup grp_hm_r0
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| 196 | * @{
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| 197 | */
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| 198 | VMMR0_INT_DECL(int) HMR0SetupVM(PVM pVM);
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| 199 | VMMR0_INT_DECL(int) HMR0RunGuestCode(PVM pVM, PVMCPU pVCpu);
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| 200 | VMMR0_INT_DECL(int) HMR0Enter(PVM pVM, PVMCPU pVCpu);
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| 201 | VMMR0_INT_DECL(int) HMR0Leave(PVM pVM, PVMCPU pVCpu);
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| 202 | VMMR0_INT_DECL(bool) HMR0SuspendPending(void);
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| 203 |
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| 204 | # if HC_ARCH_BITS == 32 && defined(VBOX_WITH_64_BITS_GUESTS)
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| 205 | VMMR0_INT_DECL(int) HMR0SaveFPUState(PVM pVM, PVMCPU pVCpu, PCPUMCTX pCtx);
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| 206 | VMMR0_INT_DECL(int) HMR0SaveDebugState(PVM pVM, PVMCPU pVCpu, PCPUMCTX pCtx);
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| 207 | VMMR0_INT_DECL(int) HMR0TestSwitcher3264(PVM pVM);
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| 208 | # endif
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| 209 |
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| 210 | /** @} */
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| 211 | #endif /* IN_RING0 */
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| 212 |
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| 213 |
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| 214 | /** @} */
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| 215 | RT_C_DECLS_END
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| 216 |
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| 217 |
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| 218 | #endif
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| 219 |
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