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) 2006-2017 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 <VBox/vmm/hm_svm.h>
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33 | #include <VBox/vmm/trpm.h>
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34 | #include <iprt/mp.h>
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35 |
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36 |
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37 | /** @defgroup grp_hm The Hardware Assisted Virtualization Manager API
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38 | * @ingroup grp_vmm
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39 | * @{
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40 | */
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41 |
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42 | RT_C_DECLS_BEGIN
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43 |
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44 | /**
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45 | * Checks whether HM (VT-x/AMD-V) is being used by this VM.
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46 | *
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47 | * @retval true if used.
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48 | * @retval false if software virtualization (raw-mode) is used.
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49 | *
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50 | * @param a_pVM The cross context VM structure.
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51 | * @sa HMIsEnabledNotMacro, HMR3IsEnabled
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52 | * @internal
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53 | */
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54 | #if defined(VBOX_STRICT) && defined(IN_RING3)
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55 | # define HMIsEnabled(a_pVM) HMIsEnabledNotMacro(a_pVM)
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56 | #else
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57 | # define HMIsEnabled(a_pVM) ((a_pVM)->fHMEnabled)
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58 | #endif
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59 |
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60 | /**
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61 | * Checks whether raw-mode context is required for any purpose.
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62 | *
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63 | * @retval true if required either by raw-mode itself or by HM for doing
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64 | * switching the cpu to 64-bit mode.
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65 | * @retval false if not required.
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66 | *
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67 | * @param a_pVM The cross context VM structure.
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68 | * @internal
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69 | */
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70 | #if HC_ARCH_BITS == 64
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71 | # define HMIsRawModeCtxNeeded(a_pVM) (!HMIsEnabled(a_pVM))
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72 | #else
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73 | # define HMIsRawModeCtxNeeded(a_pVM) (!HMIsEnabled(a_pVM) || (a_pVM)->fHMNeedRawModeCtx)
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74 | #endif
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75 |
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76 | /**
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77 | * Check if the current CPU state is valid for emulating IO blocks in the recompiler
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78 | *
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79 | * @returns boolean
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80 | * @param a_pVCpu Pointer to the shared virtual CPU structure.
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81 | * @internal
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82 | */
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83 | #define HMCanEmulateIoBlock(a_pVCpu) (!CPUMIsGuestInPagedProtectedMode(a_pVCpu))
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84 |
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85 | /**
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86 | * Check if the current CPU state is valid for emulating IO blocks in the recompiler
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87 | *
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88 | * @returns boolean
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89 | * @param a_pCtx Pointer to the CPU context (within PVM).
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90 | * @internal
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91 | */
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92 | #define HMCanEmulateIoBlockEx(a_pCtx) (!CPUMIsGuestInPagedProtectedModeEx(a_pCtx))
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93 |
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94 | /**
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95 | * Checks whether we're in the special hardware virtualization context.
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96 | * @returns true / false.
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97 | * @param a_pVCpu The caller's cross context virtual CPU structure.
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98 | * @thread EMT
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99 | */
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100 | #ifdef IN_RING0
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101 | # define HMIsInHwVirtCtx(a_pVCpu) (VMCPU_GET_STATE(a_pVCpu) == VMCPUSTATE_STARTED_HM)
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102 | #else
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103 | # define HMIsInHwVirtCtx(a_pVCpu) (false)
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104 | #endif
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105 |
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106 | /**
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107 | * Checks whether we're in the special hardware virtualization context and we
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108 | * cannot perform long jump without guru meditating and possibly messing up the
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109 | * host and/or guest state.
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110 | *
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111 | * This is after we've turned interrupts off and such.
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112 | *
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113 | * @returns true / false.
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114 | * @param a_pVCpu The caller's cross context virtual CPU structure.
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115 | * @thread EMT
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116 | */
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117 | #ifdef IN_RING0
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118 | # define HMIsInHwVirtNoLongJmpCtx(a_pVCpu) (VMCPU_GET_STATE(a_pVCpu) == VMCPUSTATE_STARTED_EXEC)
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119 | #else
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120 | # define HMIsInHwVirtNoLongJmpCtx(a_pVCpu) (false)
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121 | #endif
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122 |
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123 | /**
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124 | * 64-bit raw-mode (intermediate memory context) operations.
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125 | *
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126 | * These are special hypervisor eip values used when running 64-bit guests on
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127 | * 32-bit hosts. Each operation corresponds to a routine.
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128 | *
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129 | * @note Duplicated in the assembly code!
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130 | */
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131 | typedef enum HM64ON32OP
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132 | {
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133 | HM64ON32OP_INVALID = 0,
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134 | HM64ON32OP_VMXRCStartVM64,
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135 | HM64ON32OP_SVMRCVMRun64,
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136 | HM64ON32OP_HMRCSaveGuestFPU64,
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137 | HM64ON32OP_HMRCSaveGuestDebug64,
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138 | HM64ON32OP_HMRCTestSwitcher64,
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139 | HM64ON32OP_END,
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140 | HM64ON32OP_32BIT_HACK = 0x7fffffff
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141 | } HM64ON32OP;
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142 |
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143 | /** @name All-context HM API.
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144 | * @{ */
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145 | VMMDECL(bool) HMIsEnabledNotMacro(PVM pVM);
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146 | VMM_INT_DECL(int) HMInvalidatePage(PVMCPU pVCpu, RTGCPTR GCVirt);
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147 | VMM_INT_DECL(bool) HMHasPendingIrq(PVM pVM);
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148 | VMM_INT_DECL(PX86PDPE) HMGetPaePdpes(PVMCPU pVCpu);
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149 | VMM_INT_DECL(int) HMAmdIsSubjectToErratum170(uint32_t *pu32Family, uint32_t *pu32Model, uint32_t *pu32Stepping);
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150 | VMM_INT_DECL(bool) HMSetSingleInstruction(PVM pVM, PVMCPU pVCpu, bool fEnable);
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151 | VMM_INT_DECL(void) HMHypercallsEnable(PVMCPU pVCpu);
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152 | VMM_INT_DECL(void) HMHypercallsDisable(PVMCPU pVCpu);
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153 | /** @} */
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154 |
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155 | /** @name All-context SVM helpers.
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156 | * @{ */
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157 | VMM_INT_DECL(TRPMEVENT) HMSvmEventToTrpmEventType(PCSVMEVENT pSvmEvent);
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158 | VMM_INT_DECL(int) HMSvmGetMsrpmOffsetAndBit(uint32_t idMsr, uint16_t *pbOffMsrpm, uint32_t *puMsrpmBit);
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159 | VMM_INT_DECL(bool) HMSvmIsIOInterceptActive(void *pvIoBitmap, uint16_t u16Port, SVMIOIOTYPE enmIoType, uint8_t cbReg,
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160 | uint8_t cAddrSizeBits, uint8_t iEffSeg, bool fRep, bool fStrIo,
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161 | PSVMIOIOEXITINFO pIoExitInfo);
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162 | VMM_INT_DECL(VBOXSTRICTRC) HMSvmVmmcall(PVMCPU pVCpu, PCPUMCTX pCtx, bool *pfRipUpdated);
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163 | /** @} */
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164 |
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165 | /** @name Nested hardware virtualization.
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166 | * @{
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167 | */
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168 | #ifdef VBOX_WITH_NESTED_HWVIRT
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169 | VMM_INT_DECL(void) HMSvmNstGstVmExitNotify(PVMCPU pVCpu, PSVMVMCB pVmcbNstGst);
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170 | #endif
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171 | /** @} */
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172 |
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173 | #ifndef IN_RC
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174 | VMM_INT_DECL(int) HMFlushTLB(PVMCPU pVCpu);
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175 | VMM_INT_DECL(int) HMFlushTLBOnAllVCpus(PVM pVM);
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176 | VMM_INT_DECL(int) HMInvalidatePageOnAllVCpus(PVM pVM, RTGCPTR GCVirt);
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177 | VMM_INT_DECL(int) HMInvalidatePhysPage(PVM pVM, RTGCPHYS GCPhys);
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178 | VMM_INT_DECL(bool) HMIsNestedPagingActive(PVM pVM);
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179 | VMM_INT_DECL(bool) HMAreNestedPagingAndFullGuestExecEnabled(PVM pVM);
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180 | VMM_INT_DECL(bool) HMIsLongModeAllowed(PVM pVM);
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181 | VMM_INT_DECL(bool) HMAreMsrBitmapsAvailable(PVM pVM);
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182 | VMM_INT_DECL(PGMMODE) HMGetShwPagingMode(PVM pVM);
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183 | #else /* Nops in RC: */
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184 | # define HMFlushTLB(pVCpu) do { } while (0)
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185 | # define HMIsNestedPagingActive(pVM) false
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186 | # define HMAreNestedPagingAndFullGuestExecEnabled(pVM) false
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187 | # define HMIsLongModeAllowed(pVM) false
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188 | # define HMAreMsrBitmapsAvailable(pVM) false
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189 | # define HMFlushTLBOnAllVCpus(pVM) do { } while (0)
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190 | #endif
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191 |
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192 | #ifdef IN_RING0
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193 | /** @defgroup grp_hm_r0 The HM ring-0 Context API
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194 | * @{
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195 | */
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196 | VMMR0_INT_DECL(int) HMR0Init(void);
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197 | VMMR0_INT_DECL(int) HMR0Term(void);
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198 | VMMR0_INT_DECL(int) HMR0InitVM(PVM pVM);
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199 | VMMR0_INT_DECL(int) HMR0TermVM(PVM pVM);
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200 | VMMR0_INT_DECL(int) HMR0EnableAllCpus(PVM pVM);
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201 | # ifdef VBOX_WITH_RAW_MODE
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202 | VMMR0_INT_DECL(int) HMR0EnterSwitcher(PVM pVM, VMMSWITCHER enmSwitcher, bool *pfVTxDisabled);
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203 | VMMR0_INT_DECL(void) HMR0LeaveSwitcher(PVM pVM, bool fVTxDisabled);
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204 | # endif
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205 |
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206 | VMMR0_INT_DECL(void) HMR0SavePendingIOPortRead(PVMCPU pVCpu, RTGCPTR GCPtrRip, RTGCPTR GCPtrRipNext,
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207 | unsigned uPort, unsigned uAndVal, unsigned cbSize);
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208 | VMMR0_INT_DECL(int) HMR0SetupVM(PVM pVM);
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209 | VMMR0_INT_DECL(int) HMR0RunGuestCode(PVM pVM, PVMCPU pVCpu);
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210 | VMMR0_INT_DECL(int) HMR0Enter(PVM pVM, PVMCPU pVCpu);
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211 | VMMR0_INT_DECL(int) HMR0EnterCpu(PVMCPU pVCpu);
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212 | VMMR0_INT_DECL(int) HMR0LeaveCpu(PVMCPU pVCpu);
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213 | VMMR0_INT_DECL(void) HMR0ThreadCtxCallback(RTTHREADCTXEVENT enmEvent, void *pvUser);
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214 | VMMR0_INT_DECL(void) HMR0NotifyCpumUnloadedGuestFpuState(PVMCPU VCpu);
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215 | VMMR0_INT_DECL(void) HMR0NotifyCpumModifiedHostCr0(PVMCPU VCpu);
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216 | VMMR0_INT_DECL(bool) HMR0SuspendPending(void);
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217 |
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218 | # if HC_ARCH_BITS == 32 && defined(VBOX_WITH_64_BITS_GUESTS)
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219 | VMMR0_INT_DECL(int) HMR0SaveFPUState(PVM pVM, PVMCPU pVCpu, PCPUMCTX pCtx);
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220 | VMMR0_INT_DECL(int) HMR0SaveDebugState(PVM pVM, PVMCPU pVCpu, PCPUMCTX pCtx);
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221 | VMMR0_INT_DECL(int) HMR0TestSwitcher3264(PVM pVM);
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222 | # endif
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223 |
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224 | VMMR0_INT_DECL(int) HMR0EnsureCompleteBasicContext(PVMCPU pVCpu, PCPUMCTX pMixedCtx);
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225 |
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226 | /** @} */
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227 | #endif /* IN_RING0 */
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228 |
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229 |
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230 | #ifdef IN_RING3
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231 | /** @defgroup grp_hm_r3 The HM ring-3 Context API
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232 | * @{
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233 | */
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234 | VMMR3DECL(bool) HMR3IsEnabled(PUVM pUVM);
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235 | VMMR3DECL(bool) HMR3IsNestedPagingActive(PUVM pUVM);
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236 | VMMR3DECL(bool) HMR3IsVirtApicRegsEnabled(PUVM pUVM);
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237 | VMMR3DECL(bool) HMR3IsPostedIntrsEnabled(PUVM pUVM);
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238 | VMMR3DECL(bool) HMR3IsVpidActive(PUVM pUVM);
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239 | VMMR3DECL(bool) HMR3IsUXActive(PUVM pUVM);
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240 | VMMR3DECL(bool) HMR3IsSvmEnabled(PUVM pUVM);
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241 | VMMR3DECL(bool) HMR3IsVmxEnabled(PUVM pUVM);
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242 |
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243 | VMMR3_INT_DECL(bool) HMR3IsEventPending(PVMCPU pVCpu);
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244 | VMMR3_INT_DECL(int) HMR3Init(PVM pVM);
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245 | VMMR3_INT_DECL(int) HMR3InitCompleted(PVM pVM, VMINITCOMPLETED enmWhat);
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246 | VMMR3_INT_DECL(void) HMR3Relocate(PVM pVM);
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247 | VMMR3_INT_DECL(int) HMR3Term(PVM pVM);
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248 | VMMR3_INT_DECL(void) HMR3Reset(PVM pVM);
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249 | VMMR3_INT_DECL(void) HMR3ResetCpu(PVMCPU pVCpu);
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250 | VMMR3_INT_DECL(void) HMR3CheckError(PVM pVM, int iStatusCode);
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251 | VMMR3DECL(bool) HMR3CanExecuteGuest(PVM pVM, PCPUMCTX pCtx);
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252 | VMMR3_INT_DECL(void) HMR3NotifyScheduled(PVMCPU pVCpu);
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253 | VMMR3_INT_DECL(void) HMR3NotifyEmulated(PVMCPU pVCpu);
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254 | VMMR3_INT_DECL(void) HMR3NotifyDebugEventChanged(PVM pVM);
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255 | VMMR3_INT_DECL(void) HMR3NotifyDebugEventChangedPerCpu(PVM pVM, PVMCPU pVCpu);
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256 | VMMR3_INT_DECL(bool) HMR3IsActive(PVMCPU pVCpu);
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257 | VMMR3_INT_DECL(void) HMR3PagingModeChanged(PVM pVM, PVMCPU pVCpu, PGMMODE enmShadowMode, PGMMODE enmGuestMode);
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258 | VMMR3_INT_DECL(int) HMR3EmulateIoBlock(PVM pVM, PCPUMCTX pCtx);
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259 | VMMR3_INT_DECL(VBOXSTRICTRC) HMR3RestartPendingIOInstr(PVM pVM, PVMCPU pVCpu, PCPUMCTX pCtx);
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260 | VMMR3_INT_DECL(int) HMR3EnablePatching(PVM pVM, RTGCPTR pPatchMem, unsigned cbPatchMem);
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261 | VMMR3_INT_DECL(int) HMR3DisablePatching(PVM pVM, RTGCPTR pPatchMem, unsigned cbPatchMem);
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262 | VMMR3_INT_DECL(int) HMR3PatchTprInstr(PVM pVM, PVMCPU pVCpu, PCPUMCTX pCtx);
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263 | VMMR3_INT_DECL(bool) HMR3IsRescheduleRequired(PVM pVM, PCPUMCTX pCtx);
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264 | VMMR3_INT_DECL(bool) HMR3IsVmxPreemptionTimerUsed(PVM pVM);
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265 | VMMR3_INT_DECL(void) HMR3InfoSvmVmcbCtrl(PCDBGFINFOHLP pHlp, PCSVMVMCBCTRL pVmcbCtrl, const char *pszPrefix);
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266 | /** @} */
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267 | #endif /* IN_RING3 */
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268 |
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269 | /** @} */
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270 | RT_C_DECLS_END
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271 |
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272 |
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273 | #endif
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274 |
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