1 | /* $Id: HWACCMR0.cpp 10537 2008-07-11 16:23:47Z vboxsync $ */
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2 | /** @file
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3 | * HWACCM - Host Context Ring 0.
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4 | */
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5 |
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6 | /*
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7 | * Copyright (C) 2006-2007 Sun Microsystems, Inc.
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8 | *
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9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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10 | * available from http://www.virtualbox.org. This file is free software;
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11 | * you can redistribute it and/or modify it under the terms of the GNU
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12 | * General Public License (GPL) as published by the Free Software
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13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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16 | *
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17 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
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18 | * Clara, CA 95054 USA or visit http://www.sun.com if you need
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19 | * additional information or have any questions.
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20 | */
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21 |
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22 |
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23 | /*******************************************************************************
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24 | * Header Files *
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25 | *******************************************************************************/
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26 | #define LOG_GROUP LOG_GROUP_HWACCM
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27 | #include <VBox/hwaccm.h>
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28 | #include "HWACCMInternal.h"
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29 | #include <VBox/vm.h>
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30 | #include <VBox/x86.h>
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31 | #include <VBox/hwacc_vmx.h>
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32 | #include <VBox/hwacc_svm.h>
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33 | #include <VBox/pgm.h>
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34 | #include <VBox/pdm.h>
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35 | #include <VBox/err.h>
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36 | #include <VBox/log.h>
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37 | #include <VBox/selm.h>
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38 | #include <VBox/iom.h>
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39 | #include <iprt/param.h>
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40 | #include <iprt/assert.h>
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41 | #include <iprt/asm.h>
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42 | #include <iprt/string.h>
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43 | #include <iprt/memobj.h>
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44 | #include <iprt/cpuset.h>
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45 | #include "HWVMXR0.h"
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46 | #include "HWSVMR0.h"
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47 |
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48 | /*******************************************************************************
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49 | * Internal Functions *
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50 | *******************************************************************************/
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51 | static DECLCALLBACK(void) HWACCMR0EnableCPU(RTCPUID idCpu, void *pvUser1, void *pvUser2);
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52 | static DECLCALLBACK(void) HWACCMR0DisableCPU(RTCPUID idCpu, void *pvUser1, void *pvUser2);
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53 | static DECLCALLBACK(void) HWACCMR0InitCPU(RTCPUID idCpu, void *pvUser1, void *pvUser2);
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54 | static int hwaccmr0CheckCpuRcArray(int *paRc, unsigned cErrorCodes, RTCPUID *pidCpu);
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55 |
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56 | /*******************************************************************************
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57 | * Local Variables *
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58 | *******************************************************************************/
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59 |
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60 | static struct
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61 | {
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62 | HWACCM_CPUINFO aCpuInfo[RTCPUSET_MAX_CPUS];
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63 |
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64 | /** Ring 0 handlers for VT-x and AMD-V. */
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65 | DECLR0CALLBACKMEMBER(int, pfnEnterSession,(PVM pVM, PHWACCM_CPUINFO pCpu));
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66 | DECLR0CALLBACKMEMBER(int, pfnLeaveSession,(PVM pVM));
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67 | DECLR0CALLBACKMEMBER(int, pfnSaveHostState,(PVM pVM));
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68 | DECLR0CALLBACKMEMBER(int, pfnLoadGuestState,(PVM pVM, CPUMCTX *pCtx));
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69 | DECLR0CALLBACKMEMBER(int, pfnRunGuestCode,(PVM pVM, CPUMCTX *pCtx));
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70 | DECLR0CALLBACKMEMBER(int, pfnEnableCpu, (PHWACCM_CPUINFO pCpu, PVM pVM, void *pvPageCpu, RTHCPHYS pPageCpuPhys));
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71 | DECLR0CALLBACKMEMBER(int, pfnDisableCpu, (PHWACCM_CPUINFO pCpu, void *pvPageCpu, RTHCPHYS pPageCpuPhys));
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72 | DECLR0CALLBACKMEMBER(int, pfnInitVM, (PVM pVM));
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73 | DECLR0CALLBACKMEMBER(int, pfnTermVM, (PVM pVM));
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74 | DECLR0CALLBACKMEMBER(int, pfnSetupVM, (PVM pVM));
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75 |
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76 | struct
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77 | {
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78 | /** Set by the ring-0 driver to indicate VMX is supported by the CPU. */
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79 | bool fSupported;
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80 |
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81 | /** Host CR4 value (set by ring-0 VMX init) */
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82 | uint64_t hostCR4;
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83 |
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84 | /** VMX MSR values */
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85 | struct
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86 | {
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87 | uint64_t feature_ctrl;
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88 | uint64_t vmx_basic_info;
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89 | VMX_CAPABILITY vmx_pin_ctls;
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90 | VMX_CAPABILITY vmx_proc_ctls;
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91 | VMX_CAPABILITY vmx_exit;
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92 | VMX_CAPABILITY vmx_entry;
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93 | uint64_t vmx_misc;
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94 | uint64_t vmx_cr0_fixed0;
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95 | uint64_t vmx_cr0_fixed1;
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96 | uint64_t vmx_cr4_fixed0;
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97 | uint64_t vmx_cr4_fixed1;
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98 | uint64_t vmx_vmcs_enum;
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99 | } msr;
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100 | /* Last instruction error */
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101 | uint32_t ulLastInstrError;
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102 | } vmx;
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103 | struct
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104 | {
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105 | /** Set by the ring-0 driver to indicate SVM is supported by the CPU. */
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106 | bool fSupported;
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107 |
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108 | /** SVM revision. */
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109 | uint32_t u32Rev;
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110 |
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111 | /** Maximum ASID allowed. */
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112 | uint32_t u32MaxASID;
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113 |
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114 | /** SVM feature bits from cpuid 0x8000000a */
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115 | uint32_t u32Features;
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116 | } svm;
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117 | /** Saved error from detection */
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118 | int32_t lLastError;
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119 |
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120 | struct
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121 | {
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122 | uint32_t u32AMDFeatureECX;
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123 | uint32_t u32AMDFeatureEDX;
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124 | } cpuid;
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125 |
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126 | HWACCMSTATE enmHwAccmState;
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127 | } HWACCMR0Globals;
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128 |
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129 |
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130 |
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131 | /**
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132 | * Does global Ring-0 HWACCM initialization.
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133 | *
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134 | * @returns VBox status code.
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135 | */
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136 | HWACCMR0DECL(int) HWACCMR0Init()
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137 | {
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138 | int rc;
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139 |
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140 | memset(&HWACCMR0Globals, 0, sizeof(HWACCMR0Globals));
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141 | HWACCMR0Globals.enmHwAccmState = HWACCMSTATE_UNINITIALIZED;
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142 |
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143 | /* Fill in all callbacks with placeholders. */
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144 | HWACCMR0Globals.pfnEnterSession = HWACCMR0DummyEnter;
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145 | HWACCMR0Globals.pfnLeaveSession = HWACCMR0DummyLeave;
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146 | HWACCMR0Globals.pfnSaveHostState = HWACCMR0DummySaveHostState;
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147 | HWACCMR0Globals.pfnLoadGuestState = HWACCMR0DummyLoadGuestState;
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148 | HWACCMR0Globals.pfnRunGuestCode = HWACCMR0DummyRunGuestCode;
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149 | HWACCMR0Globals.pfnEnableCpu = HWACCMR0DummyEnableCpu;
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150 | HWACCMR0Globals.pfnDisableCpu = HWACCMR0DummyDisableCpu;
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151 | HWACCMR0Globals.pfnInitVM = HWACCMR0DummyInitVM;
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152 | HWACCMR0Globals.pfnTermVM = HWACCMR0DummyTermVM;
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153 | HWACCMR0Globals.pfnSetupVM = HWACCMR0DummySetupVM;
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154 |
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155 | #ifndef VBOX_WITH_HYBIRD_32BIT_KERNEL /* paranoia */
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156 |
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157 | /*
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158 | * Check for VT-x and AMD-V capabilities
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159 | */
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160 | if (ASMHasCpuId())
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161 | {
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162 | uint32_t u32FeaturesECX;
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163 | uint32_t u32Dummy;
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164 | uint32_t u32FeaturesEDX;
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165 | uint32_t u32VendorEBX, u32VendorECX, u32VendorEDX;
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166 |
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167 | ASMCpuId(0, &u32Dummy, &u32VendorEBX, &u32VendorECX, &u32VendorEDX);
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168 | ASMCpuId(1, &u32Dummy, &u32Dummy, &u32FeaturesECX, &u32FeaturesEDX);
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169 | /* Query AMD features. */
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170 | ASMCpuId(0x80000001, &u32Dummy, &u32Dummy, &HWACCMR0Globals.cpuid.u32AMDFeatureECX, &HWACCMR0Globals.cpuid.u32AMDFeatureEDX);
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171 |
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172 | if ( u32VendorEBX == X86_CPUID_VENDOR_INTEL_EBX
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173 | && u32VendorECX == X86_CPUID_VENDOR_INTEL_ECX
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174 | && u32VendorEDX == X86_CPUID_VENDOR_INTEL_EDX
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175 | )
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176 | {
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177 | /*
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178 | * Read all VMX MSRs if VMX is available. (same goes for RDMSR/WRMSR)
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179 | * We also assume all VMX-enabled CPUs support fxsave/fxrstor.
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180 | */
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181 | if ( (u32FeaturesECX & X86_CPUID_FEATURE_ECX_VMX)
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182 | && (u32FeaturesEDX & X86_CPUID_FEATURE_EDX_MSR)
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183 | && (u32FeaturesEDX & X86_CPUID_FEATURE_EDX_FXSR)
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184 | )
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185 | {
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186 | int aRc[RTCPUSET_MAX_CPUS];
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187 | RTCPUID idCpu = 0;
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188 |
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189 | HWACCMR0Globals.vmx.msr.feature_ctrl = ASMRdMsr(MSR_IA32_FEATURE_CONTROL);
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190 |
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191 | /* We need to check if VT-x has been properly initialized on all CPUs. Some BIOSes do a lousy job. */
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192 | memset(aRc, 0, sizeof(aRc));
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193 | HWACCMR0Globals.lLastError = RTMpOnAll(HWACCMR0InitCPU, (void *)u32VendorEBX, aRc);
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194 |
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195 | /* Check the return code of all invocations. */
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196 | if (VBOX_SUCCESS(HWACCMR0Globals.lLastError))
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197 | HWACCMR0Globals.lLastError = hwaccmr0CheckCpuRcArray(aRc, RT_ELEMENTS(aRc), &idCpu);
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198 |
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199 | if (VBOX_SUCCESS(HWACCMR0Globals.lLastError))
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200 | {
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201 | /* Reread in case we've changed it. */
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202 | HWACCMR0Globals.vmx.msr.feature_ctrl = ASMRdMsr(MSR_IA32_FEATURE_CONTROL);
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203 |
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204 | if ( (HWACCMR0Globals.vmx.msr.feature_ctrl & (MSR_IA32_FEATURE_CONTROL_VMXON|MSR_IA32_FEATURE_CONTROL_LOCK))
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205 | == (MSR_IA32_FEATURE_CONTROL_VMXON|MSR_IA32_FEATURE_CONTROL_LOCK))
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206 | {
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207 | RTR0MEMOBJ pScatchMemObj;
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208 | void *pvScatchPage;
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209 | RTHCPHYS pScatchPagePhys;
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210 |
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211 | HWACCMR0Globals.vmx.msr.vmx_basic_info = ASMRdMsr(MSR_IA32_VMX_BASIC_INFO);
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212 | HWACCMR0Globals.vmx.msr.vmx_pin_ctls.u = ASMRdMsr(MSR_IA32_VMX_PINBASED_CTLS);
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213 | HWACCMR0Globals.vmx.msr.vmx_proc_ctls.u = ASMRdMsr(MSR_IA32_VMX_PROCBASED_CTLS);
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214 | HWACCMR0Globals.vmx.msr.vmx_exit.u = ASMRdMsr(MSR_IA32_VMX_EXIT_CTLS);
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215 | HWACCMR0Globals.vmx.msr.vmx_entry.u = ASMRdMsr(MSR_IA32_VMX_ENTRY_CTLS);
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216 | HWACCMR0Globals.vmx.msr.vmx_misc = ASMRdMsr(MSR_IA32_VMX_MISC);
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217 | HWACCMR0Globals.vmx.msr.vmx_cr0_fixed0 = ASMRdMsr(MSR_IA32_VMX_CR0_FIXED0);
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218 | HWACCMR0Globals.vmx.msr.vmx_cr0_fixed1 = ASMRdMsr(MSR_IA32_VMX_CR0_FIXED1);
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219 | HWACCMR0Globals.vmx.msr.vmx_cr4_fixed0 = ASMRdMsr(MSR_IA32_VMX_CR4_FIXED0);
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220 | HWACCMR0Globals.vmx.msr.vmx_cr4_fixed1 = ASMRdMsr(MSR_IA32_VMX_CR4_FIXED1);
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221 | HWACCMR0Globals.vmx.msr.vmx_vmcs_enum = ASMRdMsr(MSR_IA32_VMX_VMCS_ENUM);
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222 | HWACCMR0Globals.vmx.hostCR4 = ASMGetCR4();
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223 |
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224 | rc = RTR0MemObjAllocCont(&pScatchMemObj, 1 << PAGE_SHIFT, true /* executable R0 mapping */);
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225 | if (RT_FAILURE(rc))
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226 | return rc;
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227 |
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228 | pvScatchPage = RTR0MemObjAddress(pScatchMemObj);
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229 | pScatchPagePhys = RTR0MemObjGetPagePhysAddr(pScatchMemObj, 0);
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230 | memset(pvScatchPage, 0, PAGE_SIZE);
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231 |
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232 | /* Set revision dword at the beginning of the structure. */
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233 | *(uint32_t *)pvScatchPage = MSR_IA32_VMX_BASIC_INFO_VMCS_ID(HWACCMR0Globals.vmx.msr.vmx_basic_info);
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234 |
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235 | /* Make sure we don't get rescheduled to another cpu during this probe. */
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236 | RTCCUINTREG fFlags = ASMIntDisableFlags();
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237 |
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238 | /*
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239 | * Check CR4.VMXE
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240 | */
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241 | if (!(HWACCMR0Globals.vmx.hostCR4 & X86_CR4_VMXE))
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242 | {
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243 | /* In theory this bit could be cleared behind our back. Which would cause #UD faults when we
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244 | * try to execute the VMX instructions...
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245 | */
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246 | ASMSetCR4(HWACCMR0Globals.vmx.hostCR4 | X86_CR4_VMXE);
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247 | }
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248 |
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249 | /* Enter VMX Root Mode */
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250 | rc = VMXEnable(pScatchPagePhys);
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251 | if (VBOX_FAILURE(rc))
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252 | {
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253 | /* KVM leaves the CPU in VMX root mode. Not only is this not allowed, it will crash the host when we enter raw mode, because
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254 | * (a) clearing X86_CR4_VMXE in CR4 causes a #GP (we no longer modify this bit)
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255 | * (b) turning off paging causes a #GP (unavoidable when switching from long to 32 bits mode or 32 bits to PAE)
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256 | *
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257 | * They should fix their code, but until they do we simply refuse to run.
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258 | */
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259 | HWACCMR0Globals.lLastError = VERR_VMX_IN_VMX_ROOT_MODE;
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260 | }
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261 | else
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262 | {
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263 | HWACCMR0Globals.vmx.fSupported = true;
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264 | VMXDisable();
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265 | }
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266 |
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267 | /* Restore CR4 again; don't leave the X86_CR4_VMXE flag set if it wasn't so before (some software could incorrectly think it's in VMX mode) */
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268 | ASMSetCR4(HWACCMR0Globals.vmx.hostCR4);
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269 | ASMSetFlags(fFlags);
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270 |
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271 | RTR0MemObjFree(pScatchMemObj, false);
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272 | if (VBOX_FAILURE(HWACCMR0Globals.lLastError))
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273 | return HWACCMR0Globals.lLastError;
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274 | }
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275 | else
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276 | {
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277 | AssertFailed(); /* can't hit this case anymore */
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278 | HWACCMR0Globals.lLastError = VERR_VMX_ILLEGAL_FEATURE_CONTROL_MSR;
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279 | }
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280 | }
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281 | #ifdef LOG_ENABLED
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282 | else
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283 | SUPR0Printf("HWACCMR0InitCPU failed with rc=%d\n", HWACCMR0Globals.lLastError);
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284 | #endif
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285 | }
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286 | else
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287 | HWACCMR0Globals.lLastError = VERR_VMX_NO_VMX;
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288 | }
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289 | else
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290 | if ( u32VendorEBX == X86_CPUID_VENDOR_AMD_EBX
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291 | && u32VendorECX == X86_CPUID_VENDOR_AMD_ECX
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292 | && u32VendorEDX == X86_CPUID_VENDOR_AMD_EDX
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293 | )
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294 | {
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295 | /*
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296 | * Read all SVM MSRs if SVM is available. (same goes for RDMSR/WRMSR)
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297 | * We also assume all SVM-enabled CPUs support fxsave/fxrstor.
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298 | */
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299 | if ( (HWACCMR0Globals.cpuid.u32AMDFeatureECX & X86_CPUID_AMD_FEATURE_ECX_SVM)
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300 | && (u32FeaturesEDX & X86_CPUID_FEATURE_EDX_MSR)
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301 | && (u32FeaturesEDX & X86_CPUID_FEATURE_EDX_FXSR)
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302 | )
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303 | {
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304 | int aRc[RTCPUSET_MAX_CPUS];
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305 | RTCPUID idCpu = 0;
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306 |
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307 | /* We need to check if AMD-V has been properly initialized on all CPUs. Some BIOSes might do a poor job. */
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308 | memset(aRc, 0, sizeof(aRc));
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309 | rc = RTMpOnAll(HWACCMR0InitCPU, (void *)u32VendorEBX, aRc);
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310 | AssertRC(rc);
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311 |
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312 | /* Check the return code of all invocations. */
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313 | if (VBOX_SUCCESS(rc))
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314 | rc = hwaccmr0CheckCpuRcArray(aRc, RT_ELEMENTS(aRc), &idCpu);
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315 |
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316 | AssertMsg(VBOX_SUCCESS(rc), ("HWACCMR0InitCPU failed for cpu %d with rc=%d\n", idCpu, rc));
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317 |
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318 | if (VBOX_SUCCESS(rc))
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319 | {
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320 | /* Query AMD features. */
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321 | ASMCpuId(0x8000000A, &HWACCMR0Globals.svm.u32Rev, &HWACCMR0Globals.svm.u32MaxASID, &u32Dummy, &HWACCMR0Globals.svm.u32Features);
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322 |
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323 | HWACCMR0Globals.svm.fSupported = true;
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324 | }
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325 | else
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326 | HWACCMR0Globals.lLastError = rc;
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327 | }
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328 | else
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329 | HWACCMR0Globals.lLastError = VERR_SVM_NO_SVM;
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330 | }
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331 | else
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332 | HWACCMR0Globals.lLastError = VERR_HWACCM_UNKNOWN_CPU;
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333 | }
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334 | else
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335 | HWACCMR0Globals.lLastError = VERR_HWACCM_NO_CPUID;
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336 |
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337 | #endif /* !VBOX_WITH_HYBIRD_32BIT_KERNEL */
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338 |
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339 | if (HWACCMR0Globals.vmx.fSupported)
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340 | {
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341 | HWACCMR0Globals.pfnEnterSession = VMXR0Enter;
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342 | HWACCMR0Globals.pfnLeaveSession = VMXR0Leave;
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343 | HWACCMR0Globals.pfnSaveHostState = VMXR0SaveHostState;
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344 | HWACCMR0Globals.pfnLoadGuestState = VMXR0LoadGuestState;
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345 | HWACCMR0Globals.pfnRunGuestCode = VMXR0RunGuestCode;
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346 | HWACCMR0Globals.pfnEnableCpu = VMXR0EnableCpu;
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347 | HWACCMR0Globals.pfnDisableCpu = VMXR0DisableCpu;
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348 | HWACCMR0Globals.pfnInitVM = VMXR0InitVM;
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349 | HWACCMR0Globals.pfnTermVM = VMXR0TermVM;
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350 | HWACCMR0Globals.pfnSetupVM = VMXR0SetupVM;
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351 | }
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352 | else
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353 | if (HWACCMR0Globals.svm.fSupported)
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354 | {
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355 | HWACCMR0Globals.pfnEnterSession = SVMR0Enter;
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356 | HWACCMR0Globals.pfnLeaveSession = SVMR0Leave;
|
---|
357 | HWACCMR0Globals.pfnSaveHostState = SVMR0SaveHostState;
|
---|
358 | HWACCMR0Globals.pfnLoadGuestState = SVMR0LoadGuestState;
|
---|
359 | HWACCMR0Globals.pfnRunGuestCode = SVMR0RunGuestCode;
|
---|
360 | HWACCMR0Globals.pfnEnableCpu = SVMR0EnableCpu;
|
---|
361 | HWACCMR0Globals.pfnDisableCpu = SVMR0DisableCpu;
|
---|
362 | HWACCMR0Globals.pfnInitVM = SVMR0InitVM;
|
---|
363 | HWACCMR0Globals.pfnTermVM = SVMR0TermVM;
|
---|
364 | HWACCMR0Globals.pfnSetupVM = SVMR0SetupVM;
|
---|
365 | }
|
---|
366 |
|
---|
367 | return VINF_SUCCESS;
|
---|
368 | }
|
---|
369 |
|
---|
370 |
|
---|
371 | /**
|
---|
372 | * Checks the error code array filled in for each cpu in the system.
|
---|
373 | *
|
---|
374 | * @returns VBox status code.
|
---|
375 | * @param paRc Error code array
|
---|
376 | * @param cErrorCodes Array size
|
---|
377 | * @param pidCpu Value of the first cpu that set an error (out)
|
---|
378 | */
|
---|
379 | static int hwaccmr0CheckCpuRcArray(int *paRc, unsigned cErrorCodes, RTCPUID *pidCpu)
|
---|
380 | {
|
---|
381 | int rc = VINF_SUCCESS;
|
---|
382 |
|
---|
383 | Assert(cErrorCodes == RTCPUSET_MAX_CPUS);
|
---|
384 |
|
---|
385 | for (unsigned i=0;i<cErrorCodes;i++)
|
---|
386 | {
|
---|
387 | if (RTMpIsCpuOnline(i))
|
---|
388 | {
|
---|
389 | if (VBOX_FAILURE(paRc[i]))
|
---|
390 | {
|
---|
391 | rc = paRc[i];
|
---|
392 | *pidCpu = i;
|
---|
393 | break;
|
---|
394 | }
|
---|
395 | }
|
---|
396 | }
|
---|
397 | return rc;
|
---|
398 | }
|
---|
399 |
|
---|
400 | /**
|
---|
401 | * Does global Ring-0 HWACCM termination.
|
---|
402 | *
|
---|
403 | * @returns VBox status code.
|
---|
404 | */
|
---|
405 | HWACCMR0DECL(int) HWACCMR0Term()
|
---|
406 | {
|
---|
407 | int aRc[RTCPUSET_MAX_CPUS];
|
---|
408 |
|
---|
409 | memset(aRc, 0, sizeof(aRc));
|
---|
410 | int rc = RTMpOnAll(HWACCMR0DisableCPU, aRc, NULL);
|
---|
411 | Assert(RT_SUCCESS(rc) || rc == VERR_NOT_SUPPORTED);
|
---|
412 |
|
---|
413 | /* Free the per-cpu pages used for VT-x and AMD-V */
|
---|
414 | for (unsigned i=0;i<RT_ELEMENTS(HWACCMR0Globals.aCpuInfo);i++)
|
---|
415 | {
|
---|
416 | AssertMsg(VBOX_SUCCESS(aRc[i]), ("HWACCMR0DisableCPU failed for cpu %d with rc=%d\n", i, aRc[i]));
|
---|
417 | if (HWACCMR0Globals.aCpuInfo[i].pMemObj)
|
---|
418 | {
|
---|
419 | RTR0MemObjFree(HWACCMR0Globals.aCpuInfo[i].pMemObj, false);
|
---|
420 | HWACCMR0Globals.aCpuInfo[i].pMemObj = NULL;
|
---|
421 | }
|
---|
422 | }
|
---|
423 | return rc;
|
---|
424 | }
|
---|
425 |
|
---|
426 |
|
---|
427 | /**
|
---|
428 | * Worker function passed to RTMpOnAll, RTMpOnOthers and RTMpOnSpecific that
|
---|
429 | * is to be called on the target cpus.
|
---|
430 | *
|
---|
431 | * @param idCpu The identifier for the CPU the function is called on.
|
---|
432 | * @param pvUser1 The 1st user argument.
|
---|
433 | * @param pvUser2 The 2nd user argument.
|
---|
434 | */
|
---|
435 | static DECLCALLBACK(void) HWACCMR0InitCPU(RTCPUID idCpu, void *pvUser1, void *pvUser2)
|
---|
436 | {
|
---|
437 | unsigned u32VendorEBX = (uintptr_t)pvUser1;
|
---|
438 | int *paRc = (int *)pvUser2;
|
---|
439 | uint64_t val;
|
---|
440 |
|
---|
441 | #ifdef LOG_ENABLED
|
---|
442 | SUPR0Printf("HWACCMR0InitCPU cpu %d\n", idCpu);
|
---|
443 | #endif
|
---|
444 | Assert(idCpu == (RTCPUID)RTMpCpuIdToSetIndex(idCpu)); /// @todo fix idCpu == index assumption (rainy day)
|
---|
445 |
|
---|
446 | if (u32VendorEBX == X86_CPUID_VENDOR_INTEL_EBX)
|
---|
447 | {
|
---|
448 | val = ASMRdMsr(MSR_IA32_FEATURE_CONTROL);
|
---|
449 |
|
---|
450 | /*
|
---|
451 | * Both the LOCK and VMXON bit must be set; otherwise VMXON will generate a #GP.
|
---|
452 | * Once the lock bit is set, this MSR can no longer be modified.
|
---|
453 | */
|
---|
454 | if (!(val & (MSR_IA32_FEATURE_CONTROL_VMXON|MSR_IA32_FEATURE_CONTROL_LOCK)))
|
---|
455 | {
|
---|
456 | /* MSR is not yet locked; we can change it ourselves here */
|
---|
457 | ASMWrMsr(MSR_IA32_FEATURE_CONTROL, HWACCMR0Globals.vmx.msr.feature_ctrl | MSR_IA32_FEATURE_CONTROL_VMXON | MSR_IA32_FEATURE_CONTROL_LOCK);
|
---|
458 | val = ASMRdMsr(MSR_IA32_FEATURE_CONTROL);
|
---|
459 | }
|
---|
460 | if ( (val & (MSR_IA32_FEATURE_CONTROL_VMXON|MSR_IA32_FEATURE_CONTROL_LOCK))
|
---|
461 | == (MSR_IA32_FEATURE_CONTROL_VMXON|MSR_IA32_FEATURE_CONTROL_LOCK))
|
---|
462 | paRc[idCpu] = VINF_SUCCESS;
|
---|
463 | else
|
---|
464 | paRc[idCpu] = VERR_VMX_MSR_LOCKED_OR_DISABLED;
|
---|
465 | }
|
---|
466 | else
|
---|
467 | if (u32VendorEBX == X86_CPUID_VENDOR_AMD_EBX)
|
---|
468 | {
|
---|
469 | /* Check if SVM is disabled */
|
---|
470 | val = ASMRdMsr(MSR_K8_VM_CR);
|
---|
471 | if (!(val & MSR_K8_VM_CR_SVM_DISABLE))
|
---|
472 | {
|
---|
473 | /* Turn on SVM in the EFER MSR. */
|
---|
474 | val = ASMRdMsr(MSR_K6_EFER);
|
---|
475 | if (!(val & MSR_K6_EFER_SVME))
|
---|
476 | ASMWrMsr(MSR_K6_EFER, val | MSR_K6_EFER_SVME);
|
---|
477 |
|
---|
478 | /* Paranoia. */
|
---|
479 | val = ASMRdMsr(MSR_K6_EFER);
|
---|
480 | if (val & MSR_K6_EFER_SVME)
|
---|
481 | paRc[idCpu] = VINF_SUCCESS;
|
---|
482 | else
|
---|
483 | paRc[idCpu] = VERR_SVM_ILLEGAL_EFER_MSR;
|
---|
484 | }
|
---|
485 | else
|
---|
486 | paRc[idCpu] = HWACCMR0Globals.lLastError = VERR_SVM_DISABLED;
|
---|
487 | }
|
---|
488 | else
|
---|
489 | AssertFailed(); /* can't happen */
|
---|
490 | return;
|
---|
491 | }
|
---|
492 |
|
---|
493 |
|
---|
494 | /**
|
---|
495 | * Sets up HWACCM on all cpus.
|
---|
496 | *
|
---|
497 | * @returns VBox status code.
|
---|
498 | * @param pVM The VM to operate on.
|
---|
499 | * @param enmNewHwAccmState New hwaccm state
|
---|
500 | *
|
---|
501 | */
|
---|
502 | HWACCMR0DECL(int) HWACCMR0EnableAllCpus(PVM pVM, HWACCMSTATE enmNewHwAccmState)
|
---|
503 | {
|
---|
504 | Assert(sizeof(HWACCMR0Globals.enmHwAccmState) == sizeof(uint32_t));
|
---|
505 | if (ASMAtomicCmpXchgU32((volatile uint32_t *)&HWACCMR0Globals.enmHwAccmState, enmNewHwAccmState, HWACCMSTATE_UNINITIALIZED))
|
---|
506 | {
|
---|
507 | int aRc[RTCPUSET_MAX_CPUS];
|
---|
508 | RTCPUID idCpu = 0;
|
---|
509 |
|
---|
510 | /* Don't setup hwaccm as that might not work (vt-x & 64 bits raw mode) */
|
---|
511 | if (enmNewHwAccmState == HWACCMSTATE_DISABLED)
|
---|
512 | return VINF_SUCCESS;
|
---|
513 |
|
---|
514 | memset(aRc, 0, sizeof(aRc));
|
---|
515 |
|
---|
516 | /* Allocate one page per cpu for the global vt-x and amd-v pages */
|
---|
517 | for (unsigned i=0;i<RT_ELEMENTS(HWACCMR0Globals.aCpuInfo);i++)
|
---|
518 | {
|
---|
519 | Assert(!HWACCMR0Globals.aCpuInfo[i].pMemObj);
|
---|
520 |
|
---|
521 | /** @todo this is rather dangerous if cpus can be taken offline; we don't care for now */
|
---|
522 | if (RTMpIsCpuOnline(i))
|
---|
523 | {
|
---|
524 | int rc = RTR0MemObjAllocCont(&HWACCMR0Globals.aCpuInfo[i].pMemObj, 1 << PAGE_SHIFT, true /* executable R0 mapping */);
|
---|
525 | AssertRC(rc);
|
---|
526 | if (RT_FAILURE(rc))
|
---|
527 | return rc;
|
---|
528 |
|
---|
529 | void *pvR0 = RTR0MemObjAddress(HWACCMR0Globals.aCpuInfo[i].pMemObj);
|
---|
530 | Assert(pvR0);
|
---|
531 | memset(pvR0, 0, PAGE_SIZE);
|
---|
532 |
|
---|
533 | #ifdef LOG_ENABLED
|
---|
534 | SUPR0Printf("address %x phys %x\n", pvR0, (uint32_t)RTR0MemObjGetPagePhysAddr(HWACCMR0Globals.aCpuInfo[i].pMemObj, 0));
|
---|
535 | #endif
|
---|
536 | }
|
---|
537 | }
|
---|
538 | /* First time, so initialize each cpu/core */
|
---|
539 | int rc = RTMpOnAll(HWACCMR0EnableCPU, (void *)pVM, aRc);
|
---|
540 |
|
---|
541 | /* Check the return code of all invocations. */
|
---|
542 | if (VBOX_SUCCESS(rc))
|
---|
543 | rc = hwaccmr0CheckCpuRcArray(aRc, RT_ELEMENTS(aRc), &idCpu);
|
---|
544 |
|
---|
545 | AssertMsg(VBOX_SUCCESS(rc), ("HWACCMR0EnableAllCpus failed for cpu %d with rc=%d\n", idCpu, rc));
|
---|
546 | return rc;
|
---|
547 | }
|
---|
548 |
|
---|
549 | if (HWACCMR0Globals.enmHwAccmState == enmNewHwAccmState)
|
---|
550 | return VINF_SUCCESS;
|
---|
551 |
|
---|
552 | /* Request to change the mode is not allowed */
|
---|
553 | return VERR_ACCESS_DENIED;
|
---|
554 | }
|
---|
555 |
|
---|
556 | /**
|
---|
557 | * Worker function passed to RTMpOnAll, RTMpOnOthers and RTMpOnSpecific that
|
---|
558 | * is to be called on the target cpus.
|
---|
559 | *
|
---|
560 | * @param idCpu The identifier for the CPU the function is called on.
|
---|
561 | * @param pvUser1 The 1st user argument.
|
---|
562 | * @param pvUser2 The 2nd user argument.
|
---|
563 | */
|
---|
564 | static DECLCALLBACK(void) HWACCMR0EnableCPU(RTCPUID idCpu, void *pvUser1, void *pvUser2)
|
---|
565 | {
|
---|
566 | PVM pVM = (PVM)pvUser1;
|
---|
567 | int *paRc = (int *)pvUser2;
|
---|
568 | void *pvPageCpu;
|
---|
569 | RTHCPHYS pPageCpuPhys;
|
---|
570 | PHWACCM_CPUINFO pCpu = &HWACCMR0Globals.aCpuInfo[idCpu];
|
---|
571 |
|
---|
572 | Assert(pVM);
|
---|
573 | Assert(idCpu == (RTCPUID)RTMpCpuIdToSetIndex(idCpu)); /// @todo fix idCpu == index assumption (rainy day)
|
---|
574 | Assert(idCpu < RT_ELEMENTS(HWACCMR0Globals.aCpuInfo));
|
---|
575 |
|
---|
576 | pCpu->idCpu = idCpu;
|
---|
577 |
|
---|
578 | /* Make sure we start with a clean TLB. */
|
---|
579 | pCpu->fFlushTLB = true;
|
---|
580 |
|
---|
581 | /* Should never happen */
|
---|
582 | if (!HWACCMR0Globals.aCpuInfo[idCpu].pMemObj)
|
---|
583 | {
|
---|
584 | AssertFailed();
|
---|
585 | paRc[idCpu] = VERR_INTERNAL_ERROR;
|
---|
586 | return;
|
---|
587 | }
|
---|
588 |
|
---|
589 | pvPageCpu = RTR0MemObjAddress(HWACCMR0Globals.aCpuInfo[idCpu].pMemObj);
|
---|
590 | pPageCpuPhys = RTR0MemObjGetPagePhysAddr(HWACCMR0Globals.aCpuInfo[idCpu].pMemObj, 0);
|
---|
591 |
|
---|
592 | paRc[idCpu] = HWACCMR0Globals.pfnEnableCpu(pCpu, pVM, pvPageCpu, pPageCpuPhys);
|
---|
593 | AssertRC(paRc[idCpu]);
|
---|
594 | if (VBOX_SUCCESS(paRc[idCpu]))
|
---|
595 | HWACCMR0Globals.aCpuInfo[idCpu].fConfigured = true;
|
---|
596 |
|
---|
597 | return;
|
---|
598 | }
|
---|
599 |
|
---|
600 | /**
|
---|
601 | * Worker function passed to RTMpOnAll, RTMpOnOthers and RTMpOnSpecific that
|
---|
602 | * is to be called on the target cpus.
|
---|
603 | *
|
---|
604 | * @param idCpu The identifier for the CPU the function is called on.
|
---|
605 | * @param pvUser1 The 1st user argument.
|
---|
606 | * @param pvUser2 The 2nd user argument.
|
---|
607 | */
|
---|
608 | static DECLCALLBACK(void) HWACCMR0DisableCPU(RTCPUID idCpu, void *pvUser1, void *pvUser2)
|
---|
609 | {
|
---|
610 | void *pvPageCpu;
|
---|
611 | RTHCPHYS pPageCpuPhys;
|
---|
612 | int *paRc = (int *)pvUser1;
|
---|
613 |
|
---|
614 | Assert(idCpu == (RTCPUID)RTMpCpuIdToSetIndex(idCpu)); /// @todo fix idCpu == index assumption (rainy day)
|
---|
615 | Assert(idCpu < RT_ELEMENTS(HWACCMR0Globals.aCpuInfo));
|
---|
616 |
|
---|
617 | if (!HWACCMR0Globals.aCpuInfo[idCpu].pMemObj)
|
---|
618 | return;
|
---|
619 |
|
---|
620 | pvPageCpu = RTR0MemObjAddress(HWACCMR0Globals.aCpuInfo[idCpu].pMemObj);
|
---|
621 | pPageCpuPhys = RTR0MemObjGetPagePhysAddr(HWACCMR0Globals.aCpuInfo[idCpu].pMemObj, 0);
|
---|
622 |
|
---|
623 | paRc[idCpu] = HWACCMR0Globals.pfnDisableCpu(&HWACCMR0Globals.aCpuInfo[idCpu], pvPageCpu, pPageCpuPhys);
|
---|
624 | AssertRC(paRc[idCpu]);
|
---|
625 | HWACCMR0Globals.aCpuInfo[idCpu].fConfigured = false;
|
---|
626 | return;
|
---|
627 | }
|
---|
628 |
|
---|
629 |
|
---|
630 | /**
|
---|
631 | * Does Ring-0 per VM HWACCM initialization.
|
---|
632 | *
|
---|
633 | * This is mainly to check that the Host CPU mode is compatible
|
---|
634 | * with VMX.
|
---|
635 | *
|
---|
636 | * @returns VBox status code.
|
---|
637 | * @param pVM The VM to operate on.
|
---|
638 | */
|
---|
639 | HWACCMR0DECL(int) HWACCMR0InitVM(PVM pVM)
|
---|
640 | {
|
---|
641 | AssertReturn(pVM, VERR_INVALID_PARAMETER);
|
---|
642 |
|
---|
643 | #ifdef LOG_ENABLED
|
---|
644 | SUPR0Printf("HWACCMR0InitVM: %p\n", pVM);
|
---|
645 | #endif
|
---|
646 |
|
---|
647 | pVM->hwaccm.s.vmx.fSupported = HWACCMR0Globals.vmx.fSupported;
|
---|
648 | pVM->hwaccm.s.svm.fSupported = HWACCMR0Globals.svm.fSupported;
|
---|
649 |
|
---|
650 | pVM->hwaccm.s.vmx.msr.feature_ctrl = HWACCMR0Globals.vmx.msr.feature_ctrl;
|
---|
651 | pVM->hwaccm.s.vmx.hostCR4 = HWACCMR0Globals.vmx.hostCR4;
|
---|
652 | pVM->hwaccm.s.vmx.msr.vmx_basic_info = HWACCMR0Globals.vmx.msr.vmx_basic_info;
|
---|
653 | pVM->hwaccm.s.vmx.msr.vmx_pin_ctls = HWACCMR0Globals.vmx.msr.vmx_pin_ctls;
|
---|
654 | pVM->hwaccm.s.vmx.msr.vmx_proc_ctls = HWACCMR0Globals.vmx.msr.vmx_proc_ctls;
|
---|
655 | pVM->hwaccm.s.vmx.msr.vmx_exit = HWACCMR0Globals.vmx.msr.vmx_exit;
|
---|
656 | pVM->hwaccm.s.vmx.msr.vmx_entry = HWACCMR0Globals.vmx.msr.vmx_entry;
|
---|
657 | pVM->hwaccm.s.vmx.msr.vmx_misc = HWACCMR0Globals.vmx.msr.vmx_misc;
|
---|
658 | pVM->hwaccm.s.vmx.msr.vmx_cr0_fixed0 = HWACCMR0Globals.vmx.msr.vmx_cr0_fixed0;
|
---|
659 | pVM->hwaccm.s.vmx.msr.vmx_cr0_fixed1 = HWACCMR0Globals.vmx.msr.vmx_cr0_fixed1;
|
---|
660 | pVM->hwaccm.s.vmx.msr.vmx_cr4_fixed0 = HWACCMR0Globals.vmx.msr.vmx_cr4_fixed0;
|
---|
661 | pVM->hwaccm.s.vmx.msr.vmx_cr4_fixed1 = HWACCMR0Globals.vmx.msr.vmx_cr4_fixed1;
|
---|
662 | pVM->hwaccm.s.vmx.msr.vmx_vmcs_enum = HWACCMR0Globals.vmx.msr.vmx_vmcs_enum;
|
---|
663 | pVM->hwaccm.s.svm.u32Rev = HWACCMR0Globals.svm.u32Rev;
|
---|
664 | pVM->hwaccm.s.svm.u32MaxASID = HWACCMR0Globals.svm.u32MaxASID;
|
---|
665 | pVM->hwaccm.s.svm.u32Features = HWACCMR0Globals.svm.u32Features;
|
---|
666 | pVM->hwaccm.s.cpuid.u32AMDFeatureECX = HWACCMR0Globals.cpuid.u32AMDFeatureECX;
|
---|
667 | pVM->hwaccm.s.cpuid.u32AMDFeatureEDX = HWACCMR0Globals.cpuid.u32AMDFeatureEDX;
|
---|
668 | pVM->hwaccm.s.lLastError = HWACCMR0Globals.lLastError;
|
---|
669 |
|
---|
670 | /* Init a VT-x or AMD-V VM. */
|
---|
671 | return HWACCMR0Globals.pfnInitVM(pVM);
|
---|
672 | }
|
---|
673 |
|
---|
674 |
|
---|
675 | /**
|
---|
676 | * Does Ring-0 per VM HWACCM termination.
|
---|
677 | *
|
---|
678 | * @returns VBox status code.
|
---|
679 | * @param pVM The VM to operate on.
|
---|
680 | */
|
---|
681 | HWACCMR0DECL(int) HWACCMR0TermVM(PVM pVM)
|
---|
682 | {
|
---|
683 | AssertReturn(pVM, VERR_INVALID_PARAMETER);
|
---|
684 |
|
---|
685 | #ifdef LOG_ENABLED
|
---|
686 | SUPR0Printf("HWACCMR0TermVM: %p\n", pVM);
|
---|
687 | #endif
|
---|
688 |
|
---|
689 | /* Terminate a VT-x or AMD-V VM. */
|
---|
690 | return HWACCMR0Globals.pfnTermVM(pVM);
|
---|
691 | }
|
---|
692 |
|
---|
693 |
|
---|
694 | /**
|
---|
695 | * Sets up a VT-x or AMD-V session
|
---|
696 | *
|
---|
697 | * @returns VBox status code.
|
---|
698 | * @param pVM The VM to operate on.
|
---|
699 | */
|
---|
700 | HWACCMR0DECL(int) HWACCMR0SetupVM(PVM pVM)
|
---|
701 | {
|
---|
702 | AssertReturn(pVM, VERR_INVALID_PARAMETER);
|
---|
703 |
|
---|
704 | #ifdef LOG_ENABLED
|
---|
705 | SUPR0Printf("HWACCMR0SetupVM: %p\n", pVM);
|
---|
706 | #endif
|
---|
707 |
|
---|
708 | /* Setup VT-x or AMD-V. */
|
---|
709 | return HWACCMR0Globals.pfnSetupVM(pVM);
|
---|
710 | }
|
---|
711 |
|
---|
712 |
|
---|
713 | /**
|
---|
714 | * Enters the VT-x or AMD-V session
|
---|
715 | *
|
---|
716 | * @returns VBox status code.
|
---|
717 | * @param pVM The VM to operate on.
|
---|
718 | */
|
---|
719 | HWACCMR0DECL(int) HWACCMR0Enter(PVM pVM)
|
---|
720 | {
|
---|
721 | CPUMCTX *pCtx;
|
---|
722 | int rc;
|
---|
723 | RTCPUID idCpu = RTMpCpuId();
|
---|
724 |
|
---|
725 | rc = CPUMQueryGuestCtxPtr(pVM, &pCtx);
|
---|
726 | if (VBOX_FAILURE(rc))
|
---|
727 | return rc;
|
---|
728 |
|
---|
729 | /* Always load the guest's FPU/XMM state on-demand. */
|
---|
730 | CPUMDeactivateGuestFPUState(pVM);
|
---|
731 |
|
---|
732 | /* Always reload the host context and the guest's CR0 register. (!!!!) */
|
---|
733 | pVM->hwaccm.s.fContextUseFlags |= HWACCM_CHANGED_GUEST_CR0 | HWACCM_CHANGED_HOST_CONTEXT;
|
---|
734 |
|
---|
735 | /* Setup the register and mask according to the current execution mode. */
|
---|
736 | if (pCtx->msrEFER & MSR_K6_EFER_LMA)
|
---|
737 | pVM->hwaccm.s.u64RegisterMask = UINT64_C(0xFFFFFFFFFFFFFFFF);
|
---|
738 | else
|
---|
739 | pVM->hwaccm.s.u64RegisterMask = UINT64_C(0xFFFFFFFF);
|
---|
740 |
|
---|
741 | rc = HWACCMR0Globals.pfnEnterSession(pVM, &HWACCMR0Globals.aCpuInfo[idCpu]);
|
---|
742 | AssertRC(rc);
|
---|
743 | rc |= HWACCMR0Globals.pfnSaveHostState(pVM);
|
---|
744 | AssertRC(rc);
|
---|
745 | rc |= HWACCMR0Globals.pfnLoadGuestState(pVM, pCtx);
|
---|
746 | AssertRC(rc);
|
---|
747 | return rc;
|
---|
748 | }
|
---|
749 |
|
---|
750 |
|
---|
751 | /**
|
---|
752 | * Leaves the VT-x or AMD-V session
|
---|
753 | *
|
---|
754 | * @returns VBox status code.
|
---|
755 | * @param pVM The VM to operate on.
|
---|
756 | */
|
---|
757 | HWACCMR0DECL(int) HWACCMR0Leave(PVM pVM)
|
---|
758 | {
|
---|
759 | CPUMCTX *pCtx;
|
---|
760 | int rc;
|
---|
761 |
|
---|
762 | rc = CPUMQueryGuestCtxPtr(pVM, &pCtx);
|
---|
763 | if (VBOX_FAILURE(rc))
|
---|
764 | return rc;
|
---|
765 |
|
---|
766 | /** @note It's rather tricky with longjmps done by e.g. Log statements or the page fault handler. */
|
---|
767 | /* We must restore the host FPU here to make absolutely sure we don't leave the guest FPU state active
|
---|
768 | * or trash somebody else's FPU state.
|
---|
769 | */
|
---|
770 |
|
---|
771 | /* Restore host FPU and XMM state if necessary. */
|
---|
772 | if (CPUMIsGuestFPUStateActive(pVM))
|
---|
773 | {
|
---|
774 | Log2(("CPUMRestoreHostFPUState\n"));
|
---|
775 | /** @note CPUMRestoreHostFPUState keeps the current CR0 intact. */
|
---|
776 | CPUMRestoreHostFPUState(pVM);
|
---|
777 |
|
---|
778 | pVM->hwaccm.s.fContextUseFlags |= HWACCM_CHANGED_GUEST_CR0;
|
---|
779 | }
|
---|
780 |
|
---|
781 | return HWACCMR0Globals.pfnLeaveSession(pVM);
|
---|
782 | }
|
---|
783 |
|
---|
784 | /**
|
---|
785 | * Runs guest code in a hardware accelerated VM.
|
---|
786 | *
|
---|
787 | * @returns VBox status code.
|
---|
788 | * @param pVM The VM to operate on.
|
---|
789 | */
|
---|
790 | HWACCMR0DECL(int) HWACCMR0RunGuestCode(PVM pVM)
|
---|
791 | {
|
---|
792 | CPUMCTX *pCtx;
|
---|
793 | int rc;
|
---|
794 | RTCPUID idCpu = RTMpCpuId();
|
---|
795 |
|
---|
796 | Assert(!VM_FF_ISPENDING(pVM, VM_FF_PGM_SYNC_CR3 | VM_FF_PGM_SYNC_CR3_NON_GLOBAL));
|
---|
797 | Assert(HWACCMR0Globals.aCpuInfo[idCpu].fConfigured);
|
---|
798 |
|
---|
799 | rc = CPUMQueryGuestCtxPtr(pVM, &pCtx);
|
---|
800 | if (VBOX_FAILURE(rc))
|
---|
801 | return rc;
|
---|
802 |
|
---|
803 | return HWACCMR0Globals.pfnRunGuestCode(pVM, pCtx);
|
---|
804 | }
|
---|
805 |
|
---|
806 | /**
|
---|
807 | * Returns the cpu structure for the current cpu.
|
---|
808 | * Keep in mind that there is no guarantee it will stay the same (long jumps to ring 3!!!).
|
---|
809 | *
|
---|
810 | * @returns cpu structure pointer
|
---|
811 | * @param pVM The VM to operate on.
|
---|
812 | */
|
---|
813 | HWACCMR0DECL(PHWACCM_CPUINFO) HWACCMR0GetCurrentCpu()
|
---|
814 | {
|
---|
815 | RTCPUID idCpu = RTMpCpuId();
|
---|
816 |
|
---|
817 | return &HWACCMR0Globals.aCpuInfo[idCpu];
|
---|
818 | }
|
---|
819 |
|
---|
820 | #ifdef VBOX_STRICT
|
---|
821 | #include <iprt/string.h>
|
---|
822 | /**
|
---|
823 | * Dumps a descriptor.
|
---|
824 | *
|
---|
825 | * @param pDesc Descriptor to dump.
|
---|
826 | * @param Sel Selector number.
|
---|
827 | * @param pszMsg Message to prepend the log entry with.
|
---|
828 | */
|
---|
829 | HWACCMR0DECL(void) HWACCMR0DumpDescriptor(PX86DESCHC pDesc, RTSEL Sel, const char *pszMsg)
|
---|
830 | {
|
---|
831 | /*
|
---|
832 | * Make variable description string.
|
---|
833 | */
|
---|
834 | static struct
|
---|
835 | {
|
---|
836 | unsigned cch;
|
---|
837 | const char *psz;
|
---|
838 | } const aTypes[32] =
|
---|
839 | {
|
---|
840 | #define STRENTRY(str) { sizeof(str) - 1, str }
|
---|
841 |
|
---|
842 | /* system */
|
---|
843 | #if HC_ARCH_BITS == 64
|
---|
844 | STRENTRY("Reserved0 "), /* 0x00 */
|
---|
845 | STRENTRY("Reserved1 "), /* 0x01 */
|
---|
846 | STRENTRY("LDT "), /* 0x02 */
|
---|
847 | STRENTRY("Reserved3 "), /* 0x03 */
|
---|
848 | STRENTRY("Reserved4 "), /* 0x04 */
|
---|
849 | STRENTRY("Reserved5 "), /* 0x05 */
|
---|
850 | STRENTRY("Reserved6 "), /* 0x06 */
|
---|
851 | STRENTRY("Reserved7 "), /* 0x07 */
|
---|
852 | STRENTRY("Reserved8 "), /* 0x08 */
|
---|
853 | STRENTRY("TSS64Avail "), /* 0x09 */
|
---|
854 | STRENTRY("ReservedA "), /* 0x0a */
|
---|
855 | STRENTRY("TSS64Busy "), /* 0x0b */
|
---|
856 | STRENTRY("Call64 "), /* 0x0c */
|
---|
857 | STRENTRY("ReservedD "), /* 0x0d */
|
---|
858 | STRENTRY("Int64 "), /* 0x0e */
|
---|
859 | STRENTRY("Trap64 "), /* 0x0f */
|
---|
860 | #else
|
---|
861 | STRENTRY("Reserved0 "), /* 0x00 */
|
---|
862 | STRENTRY("TSS16Avail "), /* 0x01 */
|
---|
863 | STRENTRY("LDT "), /* 0x02 */
|
---|
864 | STRENTRY("TSS16Busy "), /* 0x03 */
|
---|
865 | STRENTRY("Call16 "), /* 0x04 */
|
---|
866 | STRENTRY("Task "), /* 0x05 */
|
---|
867 | STRENTRY("Int16 "), /* 0x06 */
|
---|
868 | STRENTRY("Trap16 "), /* 0x07 */
|
---|
869 | STRENTRY("Reserved8 "), /* 0x08 */
|
---|
870 | STRENTRY("TSS32Avail "), /* 0x09 */
|
---|
871 | STRENTRY("ReservedA "), /* 0x0a */
|
---|
872 | STRENTRY("TSS32Busy "), /* 0x0b */
|
---|
873 | STRENTRY("Call32 "), /* 0x0c */
|
---|
874 | STRENTRY("ReservedD "), /* 0x0d */
|
---|
875 | STRENTRY("Int32 "), /* 0x0e */
|
---|
876 | STRENTRY("Trap32 "), /* 0x0f */
|
---|
877 | #endif
|
---|
878 | /* non system */
|
---|
879 | STRENTRY("DataRO "), /* 0x10 */
|
---|
880 | STRENTRY("DataRO Accessed "), /* 0x11 */
|
---|
881 | STRENTRY("DataRW "), /* 0x12 */
|
---|
882 | STRENTRY("DataRW Accessed "), /* 0x13 */
|
---|
883 | STRENTRY("DataDownRO "), /* 0x14 */
|
---|
884 | STRENTRY("DataDownRO Accessed "), /* 0x15 */
|
---|
885 | STRENTRY("DataDownRW "), /* 0x16 */
|
---|
886 | STRENTRY("DataDownRW Accessed "), /* 0x17 */
|
---|
887 | STRENTRY("CodeEO "), /* 0x18 */
|
---|
888 | STRENTRY("CodeEO Accessed "), /* 0x19 */
|
---|
889 | STRENTRY("CodeER "), /* 0x1a */
|
---|
890 | STRENTRY("CodeER Accessed "), /* 0x1b */
|
---|
891 | STRENTRY("CodeConfEO "), /* 0x1c */
|
---|
892 | STRENTRY("CodeConfEO Accessed "), /* 0x1d */
|
---|
893 | STRENTRY("CodeConfER "), /* 0x1e */
|
---|
894 | STRENTRY("CodeConfER Accessed ") /* 0x1f */
|
---|
895 | #undef SYSENTRY
|
---|
896 | };
|
---|
897 | #define ADD_STR(psz, pszAdd) do { strcpy(psz, pszAdd); psz += strlen(pszAdd); } while (0)
|
---|
898 | char szMsg[128];
|
---|
899 | char *psz = &szMsg[0];
|
---|
900 | unsigned i = pDesc->Gen.u1DescType << 4 | pDesc->Gen.u4Type;
|
---|
901 | memcpy(psz, aTypes[i].psz, aTypes[i].cch);
|
---|
902 | psz += aTypes[i].cch;
|
---|
903 |
|
---|
904 | if (pDesc->Gen.u1Present)
|
---|
905 | ADD_STR(psz, "Present ");
|
---|
906 | else
|
---|
907 | ADD_STR(psz, "Not-Present ");
|
---|
908 | #if HC_ARCH_BITS == 64
|
---|
909 | if (pDesc->Gen.u1Long)
|
---|
910 | ADD_STR(psz, "64-bit ");
|
---|
911 | else
|
---|
912 | ADD_STR(psz, "Comp ");
|
---|
913 | #else
|
---|
914 | if (pDesc->Gen.u1Granularity)
|
---|
915 | ADD_STR(psz, "Page ");
|
---|
916 | if (pDesc->Gen.u1DefBig)
|
---|
917 | ADD_STR(psz, "32-bit ");
|
---|
918 | else
|
---|
919 | ADD_STR(psz, "16-bit ");
|
---|
920 | #endif
|
---|
921 | #undef ADD_STR
|
---|
922 | *psz = '\0';
|
---|
923 |
|
---|
924 | /*
|
---|
925 | * Limit and Base and format the output.
|
---|
926 | */
|
---|
927 | uint32_t u32Limit = X86DESC_LIMIT(*pDesc);
|
---|
928 | if (pDesc->Gen.u1Granularity)
|
---|
929 | u32Limit = u32Limit << PAGE_SHIFT | PAGE_OFFSET_MASK;
|
---|
930 |
|
---|
931 | #if HC_ARCH_BITS == 64
|
---|
932 | uint64_t u32Base = X86DESC64_BASE(*pDesc);
|
---|
933 |
|
---|
934 | Log(("%s %04x - %VX64 %VX64 - base=%VX64 limit=%08x dpl=%d %s\n", pszMsg,
|
---|
935 | Sel, pDesc->au64[0], pDesc->au64[1], u32Base, u32Limit, pDesc->Gen.u2Dpl, szMsg));
|
---|
936 | #else
|
---|
937 | uint32_t u32Base = X86DESC_BASE(*pDesc);
|
---|
938 |
|
---|
939 | Log(("%s %04x - %08x %08x - base=%08x limit=%08x dpl=%d %s\n", pszMsg,
|
---|
940 | Sel, pDesc->au32[0], pDesc->au32[1], u32Base, u32Limit, pDesc->Gen.u2Dpl, szMsg));
|
---|
941 | #endif
|
---|
942 | }
|
---|
943 |
|
---|
944 | /**
|
---|
945 | * Formats a full register dump.
|
---|
946 | *
|
---|
947 | * @param pVM The VM to operate on.
|
---|
948 | * @param pCtx The context to format.
|
---|
949 | */
|
---|
950 | HWACCMR0DECL(void) HWACCMDumpRegs(PVM pVM, PCPUMCTX pCtx)
|
---|
951 | {
|
---|
952 | /*
|
---|
953 | * Format the flags.
|
---|
954 | */
|
---|
955 | static struct
|
---|
956 | {
|
---|
957 | const char *pszSet; const char *pszClear; uint32_t fFlag;
|
---|
958 | } aFlags[] =
|
---|
959 | {
|
---|
960 | { "vip",NULL, X86_EFL_VIP },
|
---|
961 | { "vif",NULL, X86_EFL_VIF },
|
---|
962 | { "ac", NULL, X86_EFL_AC },
|
---|
963 | { "vm", NULL, X86_EFL_VM },
|
---|
964 | { "rf", NULL, X86_EFL_RF },
|
---|
965 | { "nt", NULL, X86_EFL_NT },
|
---|
966 | { "ov", "nv", X86_EFL_OF },
|
---|
967 | { "dn", "up", X86_EFL_DF },
|
---|
968 | { "ei", "di", X86_EFL_IF },
|
---|
969 | { "tf", NULL, X86_EFL_TF },
|
---|
970 | { "nt", "pl", X86_EFL_SF },
|
---|
971 | { "nz", "zr", X86_EFL_ZF },
|
---|
972 | { "ac", "na", X86_EFL_AF },
|
---|
973 | { "po", "pe", X86_EFL_PF },
|
---|
974 | { "cy", "nc", X86_EFL_CF },
|
---|
975 | };
|
---|
976 | char szEFlags[80];
|
---|
977 | char *psz = szEFlags;
|
---|
978 | uint32_t efl = pCtx->eflags.u32;
|
---|
979 | for (unsigned i = 0; i < ELEMENTS(aFlags); i++)
|
---|
980 | {
|
---|
981 | const char *pszAdd = aFlags[i].fFlag & efl ? aFlags[i].pszSet : aFlags[i].pszClear;
|
---|
982 | if (pszAdd)
|
---|
983 | {
|
---|
984 | strcpy(psz, pszAdd);
|
---|
985 | psz += strlen(pszAdd);
|
---|
986 | *psz++ = ' ';
|
---|
987 | }
|
---|
988 | }
|
---|
989 | psz[-1] = '\0';
|
---|
990 |
|
---|
991 |
|
---|
992 | /*
|
---|
993 | * Format the registers.
|
---|
994 | */
|
---|
995 | if (CPUMIsGuestIn64BitCode(pVM, CPUMCTX2CORE(pCtx)))
|
---|
996 | {
|
---|
997 | Log(("rax=%016RX64 rbx=%016RX64 rcx=%016RX64 rdx=%016RX64\n"
|
---|
998 | "rsi=%016RX64 rdi=%016RX64 r8 =%016RX64 r9 =%016RX64\n"
|
---|
999 | "r10=%016RX64 r11=%016RX64 r12=%016RX64 r13=%016RX64\n"
|
---|
1000 | "r14=%016RX64 r15=%016RX64\n"
|
---|
1001 | "rip=%016RX64 rsp=%016RX64 rbp=%016RX64 iopl=%d %*s\n"
|
---|
1002 | "cs={%04x base=%016RX64 limit=%08x flags=%08x}\n"
|
---|
1003 | "ds={%04x base=%016RX64 limit=%08x flags=%08x}\n"
|
---|
1004 | "es={%04x base=%016RX64 limit=%08x flags=%08x}\n"
|
---|
1005 | "fs={%04x base=%016RX64 limit=%08x flags=%08x}\n"
|
---|
1006 | "gs={%04x base=%016RX64 limit=%08x flags=%08x}\n"
|
---|
1007 | "ss={%04x base=%016RX64 limit=%08x flags=%08x}\n"
|
---|
1008 | "cr0=%016RX64 cr2=%016RX64 cr3=%016RX64 cr4=%016RX64\n"
|
---|
1009 | "dr0=%016RX64 dr1=%016RX64 dr2=%016RX64 dr3=%016RX64\n"
|
---|
1010 | "dr4=%016RX64 dr5=%016RX64 dr6=%016RX64 dr7=%016RX64\n"
|
---|
1011 | "gdtr=%016RX64:%04x idtr=%016RX64:%04x eflags=%08x\n"
|
---|
1012 | "ldtr={%04x base=%08RX64 limit=%08x flags=%08x}\n"
|
---|
1013 | "tr ={%04x base=%08RX64 limit=%08x flags=%08x}\n"
|
---|
1014 | "SysEnter={cs=%04llx eip=%08llx esp=%08llx}\n"
|
---|
1015 | ,
|
---|
1016 | pCtx->rax, pCtx->rbx, pCtx->rcx, pCtx->rdx, pCtx->rsi, pCtx->rdi,
|
---|
1017 | pCtx->r8, pCtx->r9, pCtx->r10, pCtx->r11, pCtx->r12, pCtx->r13,
|
---|
1018 | pCtx->r14, pCtx->r15,
|
---|
1019 | pCtx->rip, pCtx->rsp, pCtx->rbp, X86_EFL_GET_IOPL(efl), 31, szEFlags,
|
---|
1020 | (RTSEL)pCtx->cs, pCtx->csHid.u64Base, pCtx->csHid.u32Limit, pCtx->csHid.Attr.u,
|
---|
1021 | (RTSEL)pCtx->ds, pCtx->dsHid.u64Base, pCtx->dsHid.u32Limit, pCtx->dsHid.Attr.u,
|
---|
1022 | (RTSEL)pCtx->es, pCtx->esHid.u64Base, pCtx->esHid.u32Limit, pCtx->esHid.Attr.u,
|
---|
1023 | (RTSEL)pCtx->fs, pCtx->fsHid.u64Base, pCtx->fsHid.u32Limit, pCtx->fsHid.Attr.u,
|
---|
1024 | (RTSEL)pCtx->gs, pCtx->gsHid.u64Base, pCtx->gsHid.u32Limit, pCtx->gsHid.Attr.u,
|
---|
1025 | (RTSEL)pCtx->ss, pCtx->ssHid.u64Base, pCtx->ssHid.u32Limit, pCtx->ssHid.Attr.u,
|
---|
1026 | pCtx->cr0, pCtx->cr2, pCtx->cr3, pCtx->cr4,
|
---|
1027 | pCtx->dr0, pCtx->dr1, pCtx->dr2, pCtx->dr3,
|
---|
1028 | pCtx->dr4, pCtx->dr5, pCtx->dr6, pCtx->dr7,
|
---|
1029 | pCtx->gdtr.pGdt, pCtx->gdtr.cbGdt, pCtx->idtr.pIdt, pCtx->idtr.cbIdt, efl,
|
---|
1030 | (RTSEL)pCtx->ldtr, pCtx->ldtrHid.u64Base, pCtx->ldtrHid.u32Limit, pCtx->ldtrHid.Attr.u,
|
---|
1031 | (RTSEL)pCtx->tr, pCtx->trHid.u64Base, pCtx->trHid.u32Limit, pCtx->trHid.Attr.u,
|
---|
1032 | pCtx->SysEnter.cs, pCtx->SysEnter.eip, pCtx->SysEnter.esp));
|
---|
1033 | }
|
---|
1034 | else
|
---|
1035 | Log(("eax=%08x ebx=%08x ecx=%08x edx=%08x esi=%08x edi=%08x\n"
|
---|
1036 | "eip=%08x esp=%08x ebp=%08x iopl=%d %*s\n"
|
---|
1037 | "cs={%04x base=%016RX64 limit=%08x flags=%08x} dr0=%08RX64 dr1=%08RX64\n"
|
---|
1038 | "ds={%04x base=%016RX64 limit=%08x flags=%08x} dr2=%08RX64 dr3=%08RX64\n"
|
---|
1039 | "es={%04x base=%016RX64 limit=%08x flags=%08x} dr4=%08RX64 dr5=%08RX64\n"
|
---|
1040 | "fs={%04x base=%016RX64 limit=%08x flags=%08x} dr6=%08RX64 dr7=%08RX64\n"
|
---|
1041 | "gs={%04x base=%016RX64 limit=%08x flags=%08x} cr0=%08RX64 cr2=%08RX64\n"
|
---|
1042 | "ss={%04x base=%016RX64 limit=%08x flags=%08x} cr3=%08RX64 cr4=%08RX64\n"
|
---|
1043 | "gdtr=%016RX64:%04x idtr=%016RX64:%04x eflags=%08x\n"
|
---|
1044 | "ldtr={%04x base=%08RX64 limit=%08x flags=%08x}\n"
|
---|
1045 | "tr ={%04x base=%08RX64 limit=%08x flags=%08x}\n"
|
---|
1046 | "SysEnter={cs=%04llx eip=%08llx esp=%08llx}\n"
|
---|
1047 | ,
|
---|
1048 | pCtx->eax, pCtx->ebx, pCtx->ecx, pCtx->edx, pCtx->esi, pCtx->edi,
|
---|
1049 | pCtx->eip, pCtx->esp, pCtx->ebp, X86_EFL_GET_IOPL(efl), 31, szEFlags,
|
---|
1050 | (RTSEL)pCtx->cs, pCtx->csHid.u64Base, pCtx->csHid.u32Limit, pCtx->csHid.Attr.u, pCtx->dr0, pCtx->dr1,
|
---|
1051 | (RTSEL)pCtx->ds, pCtx->dsHid.u64Base, pCtx->dsHid.u32Limit, pCtx->dsHid.Attr.u, pCtx->dr2, pCtx->dr3,
|
---|
1052 | (RTSEL)pCtx->es, pCtx->esHid.u64Base, pCtx->esHid.u32Limit, pCtx->esHid.Attr.u, pCtx->dr4, pCtx->dr5,
|
---|
1053 | (RTSEL)pCtx->fs, pCtx->fsHid.u64Base, pCtx->fsHid.u32Limit, pCtx->fsHid.Attr.u, pCtx->dr6, pCtx->dr7,
|
---|
1054 | (RTSEL)pCtx->gs, pCtx->gsHid.u64Base, pCtx->gsHid.u32Limit, pCtx->gsHid.Attr.u, pCtx->cr0, pCtx->cr2,
|
---|
1055 | (RTSEL)pCtx->ss, pCtx->ssHid.u64Base, pCtx->ssHid.u32Limit, pCtx->ssHid.Attr.u, pCtx->cr3, pCtx->cr4,
|
---|
1056 | pCtx->gdtr.pGdt, pCtx->gdtr.cbGdt, pCtx->idtr.pIdt, pCtx->idtr.cbIdt, efl,
|
---|
1057 | (RTSEL)pCtx->ldtr, pCtx->ldtrHid.u64Base, pCtx->ldtrHid.u32Limit, pCtx->ldtrHid.Attr.u,
|
---|
1058 | (RTSEL)pCtx->tr, pCtx->trHid.u64Base, pCtx->trHid.u32Limit, pCtx->trHid.Attr.u,
|
---|
1059 | pCtx->SysEnter.cs, pCtx->SysEnter.eip, pCtx->SysEnter.esp));
|
---|
1060 |
|
---|
1061 | Log(("FPU:\n"
|
---|
1062 | "FCW=%04x FSW=%04x FTW=%02x\n"
|
---|
1063 | "res1=%02x FOP=%04x FPUIP=%08x CS=%04x Rsvrd1=%04x\n"
|
---|
1064 | "FPUDP=%04x DS=%04x Rsvrd2=%04x MXCSR=%08x MXCSR_MASK=%08x\n"
|
---|
1065 | ,
|
---|
1066 | pCtx->fpu.FCW, pCtx->fpu.FSW, pCtx->fpu.FTW,
|
---|
1067 | pCtx->fpu.huh1, pCtx->fpu.FOP, pCtx->fpu.FPUIP, pCtx->fpu.CS, pCtx->fpu.Rsvrd1,
|
---|
1068 | pCtx->fpu.FPUDP, pCtx->fpu.DS, pCtx->fpu.Rsrvd2,
|
---|
1069 | pCtx->fpu.MXCSR, pCtx->fpu.MXCSR_MASK));
|
---|
1070 |
|
---|
1071 |
|
---|
1072 | Log(("MSR:\n"
|
---|
1073 | "EFER =%016RX64\n"
|
---|
1074 | "PAT =%016RX64\n"
|
---|
1075 | "STAR =%016RX64\n"
|
---|
1076 | "CSTAR =%016RX64\n"
|
---|
1077 | "LSTAR =%016RX64\n"
|
---|
1078 | "SFMASK =%016RX64\n"
|
---|
1079 | "KERNELGSBASE =%016RX64\n",
|
---|
1080 | pCtx->msrEFER,
|
---|
1081 | pCtx->msrPAT,
|
---|
1082 | pCtx->msrSTAR,
|
---|
1083 | pCtx->msrCSTAR,
|
---|
1084 | pCtx->msrLSTAR,
|
---|
1085 | pCtx->msrSFMASK,
|
---|
1086 | pCtx->msrKERNELGSBASE));
|
---|
1087 |
|
---|
1088 | }
|
---|
1089 | #endif
|
---|
1090 |
|
---|
1091 | /* Dummy callback handlers. */
|
---|
1092 | HWACCMR0DECL(int) HWACCMR0DummyEnter(PVM pVM, PHWACCM_CPUINFO pCpu)
|
---|
1093 | {
|
---|
1094 | return VINF_SUCCESS;
|
---|
1095 | }
|
---|
1096 |
|
---|
1097 | HWACCMR0DECL(int) HWACCMR0DummyLeave(PVM pVM)
|
---|
1098 | {
|
---|
1099 | return VINF_SUCCESS;
|
---|
1100 | }
|
---|
1101 |
|
---|
1102 | HWACCMR0DECL(int) HWACCMR0DummyEnableCpu(PHWACCM_CPUINFO pCpu, PVM pVM, void *pvPageCpu, RTHCPHYS pPageCpuPhys)
|
---|
1103 | {
|
---|
1104 | return VINF_SUCCESS;
|
---|
1105 | }
|
---|
1106 |
|
---|
1107 | HWACCMR0DECL(int) HWACCMR0DummyDisableCpu(PHWACCM_CPUINFO pCpu, void *pvPageCpu, RTHCPHYS pPageCpuPhys)
|
---|
1108 | {
|
---|
1109 | return VINF_SUCCESS;
|
---|
1110 | }
|
---|
1111 |
|
---|
1112 | HWACCMR0DECL(int) HWACCMR0DummyInitVM(PVM pVM)
|
---|
1113 | {
|
---|
1114 | return VINF_SUCCESS;
|
---|
1115 | }
|
---|
1116 |
|
---|
1117 | HWACCMR0DECL(int) HWACCMR0DummyTermVM(PVM pVM)
|
---|
1118 | {
|
---|
1119 | return VINF_SUCCESS;
|
---|
1120 | }
|
---|
1121 |
|
---|
1122 | HWACCMR0DECL(int) HWACCMR0DummySetupVM(PVM pVM)
|
---|
1123 | {
|
---|
1124 | return VINF_SUCCESS;
|
---|
1125 | }
|
---|
1126 |
|
---|
1127 | HWACCMR0DECL(int) HWACCMR0DummyRunGuestCode(PVM pVM, CPUMCTX *pCtx)
|
---|
1128 | {
|
---|
1129 | return VINF_SUCCESS;
|
---|
1130 | }
|
---|
1131 |
|
---|
1132 | HWACCMR0DECL(int) HWACCMR0DummySaveHostState(PVM pVM)
|
---|
1133 | {
|
---|
1134 | return VINF_SUCCESS;
|
---|
1135 | }
|
---|
1136 |
|
---|
1137 | HWACCMR0DECL(int) HWACCMR0DummyLoadGuestState(PVM pVM, CPUMCTX *pCtx)
|
---|
1138 | {
|
---|
1139 | return VINF_SUCCESS;
|
---|
1140 | }
|
---|