1 | /* $Id: HWACCMR0.cpp 4598 2007-09-07 09:23:11Z 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 innotek GmbH
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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 as published by the Free Software Foundation,
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13 | * in version 2 as it comes in the "COPYING" file of the VirtualBox OSE
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14 | * distribution. VirtualBox OSE is distributed in the hope that it will
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15 | * be useful, but WITHOUT ANY WARRANTY of any kind.
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16 | */
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17 |
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18 |
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19 | /*******************************************************************************
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20 | * Header Files *
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21 | *******************************************************************************/
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22 | #define LOG_GROUP LOG_GROUP_HWACCM
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23 | #include <VBox/hwaccm.h>
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24 | #include "HWACCMInternal.h"
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25 | #include <VBox/vm.h>
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26 | #include <VBox/x86.h>
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27 | #include <VBox/hwacc_vmx.h>
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28 | #include <VBox/hwacc_svm.h>
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29 | #include <VBox/pgm.h>
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30 | #include <VBox/pdm.h>
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31 | #include <VBox/err.h>
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32 | #include <VBox/log.h>
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33 | #include <VBox/selm.h>
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34 | #include <VBox/iom.h>
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35 | #include <iprt/param.h>
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36 | #include <iprt/assert.h>
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37 | #include <iprt/asm.h>
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38 | #include "HWVMXR0.h"
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39 | #include "HWSVMR0.h"
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40 |
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41 | /**
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42 | * Does Ring-0 HWACCM initialization.
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43 | *
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44 | * This is mainly to check that the Host CPU mode is compatible
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45 | * with VMX.
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46 | *
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47 | * @returns VBox status code.
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48 | * @param pVM The VM to operate on.
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49 | */
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50 | HWACCMR0DECL(int) HWACCMR0Init(PVM pVM)
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51 | {
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52 | LogComFlow(("HWACCMR0Init: %p\n", pVM));
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53 |
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54 | pVM->hwaccm.s.vmx.fSupported = false;;
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55 | pVM->hwaccm.s.svm.fSupported = false;;
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56 |
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57 | #ifndef VBOX_WITH_HYBIRD_32BIT_KERNEL /* paranoia */
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58 |
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59 | pVM->hwaccm.s.fHWACCMR0Init = true;
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60 | pVM->hwaccm.s.lLastError = VINF_SUCCESS;
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61 |
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62 | /*
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63 | * Check for VMX capabilities
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64 | */
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65 | if (ASMHasCpuId())
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66 | {
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67 | uint32_t u32FeaturesECX;
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68 | uint32_t u32Dummy;
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69 | uint32_t u32FeaturesEDX;
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70 | uint32_t u32VendorEBX, u32VendorECX, u32VendorEDX;
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71 |
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72 | ASMCpuId(0, &u32Dummy, &u32VendorEBX, &u32VendorECX, &u32VendorEDX);
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73 | ASMCpuId(1, &u32Dummy, &u32Dummy, &u32FeaturesECX, &u32FeaturesEDX);
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74 | /* Query AMD features. */
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75 | ASMCpuId(0x80000001, &u32Dummy, &u32Dummy, &pVM->hwaccm.s.cpuid.u32AMDFeatureECX, &pVM->hwaccm.s.cpuid.u32AMDFeatureEDX);
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76 |
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77 | if ( u32VendorEBX == X86_CPUID_VENDOR_INTEL_EBX
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78 | && u32VendorECX == X86_CPUID_VENDOR_INTEL_ECX
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79 | && u32VendorEDX == X86_CPUID_VENDOR_INTEL_EDX
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80 | )
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81 | {
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82 | /*
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83 | * Read all VMX MSRs if VMX is available. (same goes for RDMSR/WRMSR)
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84 | * We also assume all VMX-enabled CPUs support fxsave/fxrstor.
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85 | */
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86 | if ( (u32FeaturesECX & X86_CPUID_FEATURE_ECX_VMX)
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87 | && (u32FeaturesEDX & X86_CPUID_FEATURE_EDX_MSR)
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88 | && (u32FeaturesEDX & X86_CPUID_FEATURE_EDX_FXSR)
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89 | )
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90 | {
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91 | pVM->hwaccm.s.vmx.msr.feature_ctrl = ASMRdMsr(MSR_IA32_FEATURE_CONTROL);
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92 | /*
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93 | * Both the LOCK and VMXON bit must be set; otherwise VMXON will generate a #GP.
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94 | * Once the lock bit is set, this MSR can no longer be modified.
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95 | */
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96 | /** @todo need to check this for each cpu/core in the system!!!) */
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97 | if (!(pVM->hwaccm.s.vmx.msr.feature_ctrl & (MSR_IA32_FEATURE_CONTROL_VMXON|MSR_IA32_FEATURE_CONTROL_LOCK)))
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98 | {
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99 | /* MSR is not yet locked; we can change it ourselves here */
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100 | pVM->hwaccm.s.vmx.msr.feature_ctrl |= (MSR_IA32_FEATURE_CONTROL_VMXON|MSR_IA32_FEATURE_CONTROL_LOCK);
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101 | ASMWrMsr(MSR_IA32_FEATURE_CONTROL, pVM->hwaccm.s.vmx.msr.feature_ctrl);
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102 | }
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103 |
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104 | if ( (pVM->hwaccm.s.vmx.msr.feature_ctrl & (MSR_IA32_FEATURE_CONTROL_VMXON|MSR_IA32_FEATURE_CONTROL_LOCK))
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105 | == (MSR_IA32_FEATURE_CONTROL_VMXON|MSR_IA32_FEATURE_CONTROL_LOCK))
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106 | {
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107 | pVM->hwaccm.s.vmx.fSupported = true;
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108 | pVM->hwaccm.s.vmx.msr.vmx_basic_info = ASMRdMsr(MSR_IA32_VMX_BASIC_INFO);
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109 | pVM->hwaccm.s.vmx.msr.vmx_pin_ctls = ASMRdMsr(MSR_IA32_VMX_PINBASED_CTLS);
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110 | pVM->hwaccm.s.vmx.msr.vmx_proc_ctls = ASMRdMsr(MSR_IA32_VMX_PROCBASED_CTLS);
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111 | pVM->hwaccm.s.vmx.msr.vmx_exit = ASMRdMsr(MSR_IA32_VMX_EXIT_CTLS);
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112 | pVM->hwaccm.s.vmx.msr.vmx_entry = ASMRdMsr(MSR_IA32_VMX_ENTRY_CTLS);
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113 | pVM->hwaccm.s.vmx.msr.vmx_misc = ASMRdMsr(MSR_IA32_VMX_MISC);
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114 | pVM->hwaccm.s.vmx.msr.vmx_cr0_fixed0 = ASMRdMsr(MSR_IA32_VMX_CR0_FIXED0);
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115 | pVM->hwaccm.s.vmx.msr.vmx_cr0_fixed1 = ASMRdMsr(MSR_IA32_VMX_CR0_FIXED1);
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116 | pVM->hwaccm.s.vmx.msr.vmx_cr4_fixed0 = ASMRdMsr(MSR_IA32_VMX_CR4_FIXED0);
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117 | pVM->hwaccm.s.vmx.msr.vmx_cr4_fixed1 = ASMRdMsr(MSR_IA32_VMX_CR4_FIXED1);
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118 | pVM->hwaccm.s.vmx.msr.vmx_vmcs_enum = ASMRdMsr(MSR_IA32_VMX_VMCS_ENUM);
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119 |
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120 | /*
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121 | * Check CR4.VMXE
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122 | */
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123 | pVM->hwaccm.s.vmx.hostCR4 = ASMGetCR4();
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124 | if (!(pVM->hwaccm.s.vmx.hostCR4 & X86_CR4_VMXE))
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125 | {
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126 | /* In theory this bit could be cleared behind our back. Which would cause #UD faults when we
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127 | * try to execute the VMX instructions...
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128 | */
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129 | ASMSetCR4(pVM->hwaccm.s.vmx.hostCR4 | X86_CR4_VMXE);
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130 | }
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131 |
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132 | if ( pVM->hwaccm.s.vmx.pVMXONPhys
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133 | && pVM->hwaccm.s.vmx.pVMXON)
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134 | {
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135 | /* Set revision dword at the beginning of the structure. */
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136 | *(uint32_t *)pVM->hwaccm.s.vmx.pVMXON = MSR_IA32_VMX_BASIC_INFO_VMCS_ID(pVM->hwaccm.s.vmx.msr.vmx_basic_info);
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137 |
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138 | #if HC_ARCH_BITS == 64
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139 | /* Enter VMX Root Mode */
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140 | int rc = VMXEnable(pVM->hwaccm.s.vmx.pVMXONPhys);
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141 | if (VBOX_FAILURE(rc))
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142 | {
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143 | /* 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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144 | * (a) clearing X86_CR4_VMXE in CR4 causes a #GP (we no longer modify this bit)
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145 | * (b) turning off paging causes a #GP (unavoidable when switching from long to 32 bits mode)
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146 | *
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147 | * They should fix their code, but until they do we simply refuse to run.
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148 | */
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149 | return VERR_VMX_IN_VMX_ROOT_MODE;
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150 | }
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151 | VMXDisable();
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152 | #endif
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153 | }
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154 | }
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155 | else
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156 | pVM->hwaccm.s.lLastError = VERR_VMX_ILLEGAL_FEATURE_CONTROL_MSR;
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157 | }
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158 | else
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159 | pVM->hwaccm.s.lLastError = VERR_VMX_NO_VMX;
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160 | }
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161 | else
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162 | if ( u32VendorEBX == X86_CPUID_VENDOR_AMD_EBX
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163 | && u32VendorECX == X86_CPUID_VENDOR_AMD_ECX
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164 | && u32VendorEDX == X86_CPUID_VENDOR_AMD_EDX
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165 | )
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166 | {
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167 | /*
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168 | * Read all SVM MSRs if SVM is available. (same goes for RDMSR/WRMSR)
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169 | * We also assume all SVM-enabled CPUs support fxsave/fxrstor.
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170 | */
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171 | if ( (pVM->hwaccm.s.cpuid.u32AMDFeatureECX & X86_CPUID_AMD_FEATURE_ECX_SVM)
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172 | && (u32FeaturesEDX & X86_CPUID_FEATURE_EDX_MSR)
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173 | && (u32FeaturesEDX & X86_CPUID_FEATURE_EDX_FXSR)
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174 | )
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175 | {
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176 | uint64_t val;
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177 |
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178 | /* Check if SVM is disabled */
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179 | val = ASMRdMsr(MSR_K8_VM_CR);
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180 | if (!(val & MSR_K8_VM_CR_SVM_DISABLE))
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181 | {
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182 | /* Turn on SVM in the EFER MSR. */
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183 | val = ASMRdMsr(MSR_K6_EFER);
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184 | if (!(val & MSR_K6_EFER_SVME))
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185 | {
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186 | ASMWrMsr(MSR_K6_EFER, val | MSR_K6_EFER_SVME);
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187 | }
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188 | /* Paranoia. */
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189 | val = ASMRdMsr(MSR_K6_EFER);
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190 | if (val & MSR_K6_EFER_SVME)
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191 | {
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192 | /* Query AMD features. */
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193 | ASMCpuId(0x8000000A, &pVM->hwaccm.s.svm.u32Rev, &pVM->hwaccm.s.svm.u32MaxASID, &u32Dummy, &u32Dummy);
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194 |
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195 | pVM->hwaccm.s.svm.fSupported = true;
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196 | }
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197 | else
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198 | {
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199 | pVM->hwaccm.s.lLastError = VERR_SVM_ILLEGAL_EFER_MSR;
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200 | AssertFailed();
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201 | }
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202 | }
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203 | else
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204 | pVM->hwaccm.s.lLastError = VERR_SVM_DISABLED;
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205 | }
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206 | else
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207 | pVM->hwaccm.s.lLastError = VERR_SVM_NO_SVM;
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208 | }
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209 | else
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210 | pVM->hwaccm.s.lLastError = VERR_HWACCM_UNKNOWN_CPU;
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211 | }
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212 | else
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213 | pVM->hwaccm.s.lLastError = VERR_HWACCM_NO_CPUID;
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214 |
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215 | #endif /* !VBOX_WITH_HYBIRD_32BIT_KERNEL */
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216 |
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217 | return VINF_SUCCESS;
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218 | }
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219 |
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220 |
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221 | /**
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222 | * Sets up and activates VMX
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223 | *
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224 | * @returns VBox status code.
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225 | * @param pVM The VM to operate on.
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226 | */
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227 | HWACCMR0DECL(int) HWACCMR0SetupVMX(PVM pVM)
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228 | {
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229 | int rc = VINF_SUCCESS;
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230 |
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231 | if (pVM == NULL)
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232 | return VERR_INVALID_PARAMETER;
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233 |
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234 | /* Setup Intel VMX. */
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235 | if (pVM->hwaccm.s.vmx.fSupported)
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236 | rc = VMXR0Setup(pVM);
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237 | else
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238 | rc = SVMR0Setup(pVM);
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239 |
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240 | return rc;
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241 | }
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242 |
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243 |
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244 | /**
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245 | * Enable VMX or SVN
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246 | *
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247 | * @returns VBox status code.
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248 | * @param pVM The VM to operate on.
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249 | */
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250 | HWACCMR0DECL(int) HWACCMR0Enable(PVM pVM)
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251 | {
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252 | CPUMCTX *pCtx;
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253 | int rc;
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254 |
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255 | rc = CPUMQueryGuestCtxPtr(pVM, &pCtx);
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256 | if (VBOX_FAILURE(rc))
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257 | return rc;
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258 |
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259 | /* Always load the guest's FPU/XMM state on-demand. */
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260 | CPUMDeactivateGuestFPUState(pVM);
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261 |
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262 | /* Always reload the host context and the guest's CR0 register. (!!!!) */
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263 | pVM->hwaccm.s.fContextUseFlags |= HWACCM_CHANGED_GUEST_CR0 | HWACCM_CHANGED_HOST_CONTEXT;
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264 |
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265 | if (pVM->hwaccm.s.vmx.fSupported)
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266 | {
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267 | rc = VMXR0Enable(pVM);
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268 | AssertRC(rc);
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269 | rc |= VMXR0SaveHostState(pVM);
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270 | AssertRC(rc);
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271 | rc |= VMXR0LoadGuestState(pVM, pCtx);
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272 | AssertRC(rc);
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273 | if (rc != VINF_SUCCESS)
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274 | return rc;
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275 | }
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276 | else
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277 | {
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278 | Assert(pVM->hwaccm.s.svm.fSupported);
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279 | rc = SVMR0Enable(pVM);
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280 | AssertRC(rc);
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281 | rc |= SVMR0LoadGuestState(pVM, pCtx);
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282 | AssertRC(rc);
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283 | if (rc != VINF_SUCCESS)
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284 | return rc;
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285 |
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286 | }
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287 | return VINF_SUCCESS;
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288 | }
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289 |
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290 |
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291 | /**
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292 | * Disable VMX or SVN
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293 | *
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294 | * @returns VBox status code.
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295 | * @param pVM The VM to operate on.
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296 | */
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297 | HWACCMR0DECL(int) HWACCMR0Disable(PVM pVM)
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298 | {
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299 | CPUMCTX *pCtx;
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300 | int rc;
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301 |
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302 | rc = CPUMQueryGuestCtxPtr(pVM, &pCtx);
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303 | if (VBOX_FAILURE(rc))
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304 | return rc;
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305 |
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306 | /** @note It's rather tricky with longjmps done by e.g. Log statements or the page fault handler. */
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307 | /* We must restore the host FPU here to make absolutely sure we don't leave the guest FPU state active
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308 | * or trash somebody else's FPU state.
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309 | */
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310 |
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311 | /* Restore host FPU and XMM state if necessary. */
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312 | if (CPUMIsGuestFPUStateActive(pVM))
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313 | {
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314 | Log2(("CPUMRestoreHostFPUState\n"));
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315 | /** @note CPUMRestoreHostFPUState keeps the current CR0 intact. */
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316 | CPUMRestoreHostFPUState(pVM);
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317 |
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318 | pVM->hwaccm.s.fContextUseFlags |= HWACCM_CHANGED_GUEST_CR0;
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319 | }
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320 |
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321 | if (pVM->hwaccm.s.vmx.fSupported)
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322 | {
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323 | return VMXR0Disable(pVM);
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324 | }
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325 | else
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326 | {
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327 | Assert(pVM->hwaccm.s.svm.fSupported);
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328 | return SVMR0Disable(pVM);
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329 | }
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330 | }
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331 |
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332 | /**
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333 | * Runs guest code in a hardware accelerated VM.
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334 | *
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335 | * @returns VBox status code.
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336 | * @param pVM The VM to operate on.
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337 | */
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338 | HWACCMR0DECL(int) HWACCMR0RunGuestCode(PVM pVM)
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339 | {
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340 | CPUMCTX *pCtx;
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341 | int rc;
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342 |
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343 | rc = CPUMQueryGuestCtxPtr(pVM, &pCtx);
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344 | if (VBOX_FAILURE(rc))
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345 | return rc;
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346 |
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347 | if (pVM->hwaccm.s.vmx.fSupported)
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348 | {
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349 | return VMXR0RunGuestCode(pVM, pCtx);
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350 | }
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351 | else
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352 | {
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353 | Assert(pVM->hwaccm.s.svm.fSupported);
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354 | return SVMR0RunGuestCode(pVM, pCtx);
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355 | }
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356 | }
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357 |
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358 |
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359 | #ifdef VBOX_STRICT
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360 | #include <iprt/string.h>
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361 | /**
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362 | * Dumps a descriptor.
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363 | *
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364 | * @param Desc Descriptor to dump.
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365 | * @param Sel Selector number.
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366 | * @param pszMsg Message to prepend the log entry with.
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367 | */
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368 | HWACCMR0DECL(void) HWACCMR0DumpDescriptor(PX86DESCHC Desc, RTSEL Sel, const char *pszMsg)
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369 | {
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370 | /*
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371 | * Make variable description string.
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372 | */
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373 | static struct
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374 | {
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375 | unsigned cch;
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376 | const char *psz;
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377 | } const aTypes[32] =
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378 | {
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379 | #define STRENTRY(str) { sizeof(str) - 1, str }
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380 |
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381 | /* system */
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382 | #if HC_ARCH_BITS == 64
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383 | STRENTRY("Reserved0 "), /* 0x00 */
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384 | STRENTRY("Reserved1 "), /* 0x01 */
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385 | STRENTRY("LDT "), /* 0x02 */
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386 | STRENTRY("Reserved3 "), /* 0x03 */
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387 | STRENTRY("Reserved4 "), /* 0x04 */
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388 | STRENTRY("Reserved5 "), /* 0x05 */
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389 | STRENTRY("Reserved6 "), /* 0x06 */
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390 | STRENTRY("Reserved7 "), /* 0x07 */
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391 | STRENTRY("Reserved8 "), /* 0x08 */
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392 | STRENTRY("TSS64Avail "), /* 0x09 */
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393 | STRENTRY("ReservedA "), /* 0x0a */
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394 | STRENTRY("TSS64Busy "), /* 0x0b */
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395 | STRENTRY("Call64 "), /* 0x0c */
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396 | STRENTRY("ReservedD "), /* 0x0d */
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397 | STRENTRY("Int64 "), /* 0x0e */
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398 | STRENTRY("Trap64 "), /* 0x0f */
|
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399 | #else
|
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400 | STRENTRY("Reserved0 "), /* 0x00 */
|
---|
401 | STRENTRY("TSS16Avail "), /* 0x01 */
|
---|
402 | STRENTRY("LDT "), /* 0x02 */
|
---|
403 | STRENTRY("TSS16Busy "), /* 0x03 */
|
---|
404 | STRENTRY("Call16 "), /* 0x04 */
|
---|
405 | STRENTRY("Task "), /* 0x05 */
|
---|
406 | STRENTRY("Int16 "), /* 0x06 */
|
---|
407 | STRENTRY("Trap16 "), /* 0x07 */
|
---|
408 | STRENTRY("Reserved8 "), /* 0x08 */
|
---|
409 | STRENTRY("TSS32Avail "), /* 0x09 */
|
---|
410 | STRENTRY("ReservedA "), /* 0x0a */
|
---|
411 | STRENTRY("TSS32Busy "), /* 0x0b */
|
---|
412 | STRENTRY("Call32 "), /* 0x0c */
|
---|
413 | STRENTRY("ReservedD "), /* 0x0d */
|
---|
414 | STRENTRY("Int32 "), /* 0x0e */
|
---|
415 | STRENTRY("Trap32 "), /* 0x0f */
|
---|
416 | #endif
|
---|
417 | /* non system */
|
---|
418 | STRENTRY("DataRO "), /* 0x10 */
|
---|
419 | STRENTRY("DataRO Accessed "), /* 0x11 */
|
---|
420 | STRENTRY("DataRW "), /* 0x12 */
|
---|
421 | STRENTRY("DataRW Accessed "), /* 0x13 */
|
---|
422 | STRENTRY("DataDownRO "), /* 0x14 */
|
---|
423 | STRENTRY("DataDownRO Accessed "), /* 0x15 */
|
---|
424 | STRENTRY("DataDownRW "), /* 0x16 */
|
---|
425 | STRENTRY("DataDownRW Accessed "), /* 0x17 */
|
---|
426 | STRENTRY("CodeEO "), /* 0x18 */
|
---|
427 | STRENTRY("CodeEO Accessed "), /* 0x19 */
|
---|
428 | STRENTRY("CodeER "), /* 0x1a */
|
---|
429 | STRENTRY("CodeER Accessed "), /* 0x1b */
|
---|
430 | STRENTRY("CodeConfEO "), /* 0x1c */
|
---|
431 | STRENTRY("CodeConfEO Accessed "), /* 0x1d */
|
---|
432 | STRENTRY("CodeConfER "), /* 0x1e */
|
---|
433 | STRENTRY("CodeConfER Accessed ") /* 0x1f */
|
---|
434 | #undef SYSENTRY
|
---|
435 | };
|
---|
436 | #define ADD_STR(psz, pszAdd) do { strcpy(psz, pszAdd); psz += strlen(pszAdd); } while (0)
|
---|
437 | char szMsg[128];
|
---|
438 | char *psz = &szMsg[0];
|
---|
439 | unsigned i = Desc->Gen.u1DescType << 4 | Desc->Gen.u4Type;
|
---|
440 | memcpy(psz, aTypes[i].psz, aTypes[i].cch);
|
---|
441 | psz += aTypes[i].cch;
|
---|
442 |
|
---|
443 | if (Desc->Gen.u1Present)
|
---|
444 | ADD_STR(psz, "Present ");
|
---|
445 | else
|
---|
446 | ADD_STR(psz, "Not-Present ");
|
---|
447 | #if HC_ARCH_BITS == 64
|
---|
448 | if (Desc->Gen.u1Long)
|
---|
449 | ADD_STR(psz, "64-bit ");
|
---|
450 | else
|
---|
451 | ADD_STR(psz, "Comp ");
|
---|
452 | #else
|
---|
453 | if (Desc->Gen.u1Granularity)
|
---|
454 | ADD_STR(psz, "Page ");
|
---|
455 | if (Desc->Gen.u1DefBig)
|
---|
456 | ADD_STR(psz, "32-bit ");
|
---|
457 | else
|
---|
458 | ADD_STR(psz, "16-bit ");
|
---|
459 | #endif
|
---|
460 | #undef ADD_STR
|
---|
461 | *psz = '\0';
|
---|
462 |
|
---|
463 | /*
|
---|
464 | * Limit and Base and format the output.
|
---|
465 | */
|
---|
466 | uint32_t u32Limit = Desc->Gen.u4LimitHigh << 16 | Desc->Gen.u16LimitLow;
|
---|
467 | if (Desc->Gen.u1Granularity)
|
---|
468 | u32Limit = u32Limit << PAGE_SHIFT | PAGE_OFFSET_MASK;
|
---|
469 |
|
---|
470 | #if HC_ARCH_BITS == 64
|
---|
471 | uint64_t u32Base = ((uintptr_t)Desc->Gen.u32BaseHigh3 << 32ULL) | Desc->Gen.u8BaseHigh2 << 24ULL | Desc->Gen.u8BaseHigh1 << 16ULL | Desc->Gen.u16BaseLow;
|
---|
472 |
|
---|
473 | Log(("%s %04x - %VX64 %VX64 - base=%VX64 limit=%08x dpl=%d %s\n", pszMsg,
|
---|
474 | Sel, Desc->au64[0], Desc->au64[1], u32Base, u32Limit, Desc->Gen.u2Dpl, szMsg));
|
---|
475 | #else
|
---|
476 | uint32_t u32Base = Desc->Gen.u8BaseHigh2 << 24 | Desc->Gen.u8BaseHigh1 << 16 | Desc->Gen.u16BaseLow;
|
---|
477 |
|
---|
478 | Log(("%s %04x - %08x %08x - base=%08x limit=%08x dpl=%d %s\n", pszMsg,
|
---|
479 | Sel, Desc->au32[0], Desc->au32[1], u32Base, u32Limit, Desc->Gen.u2Dpl, szMsg));
|
---|
480 | #endif
|
---|
481 | }
|
---|
482 |
|
---|
483 | /**
|
---|
484 | * Formats a full register dump.
|
---|
485 | *
|
---|
486 | * @param pCtx The context to format.
|
---|
487 | */
|
---|
488 | HWACCMR0DECL(void) HWACCMDumpRegs(PCPUMCTX pCtx)
|
---|
489 | {
|
---|
490 | /*
|
---|
491 | * Format the flags.
|
---|
492 | */
|
---|
493 | static struct
|
---|
494 | {
|
---|
495 | const char *pszSet; const char *pszClear; uint32_t fFlag;
|
---|
496 | } aFlags[] =
|
---|
497 | {
|
---|
498 | { "vip",NULL, X86_EFL_VIP },
|
---|
499 | { "vif",NULL, X86_EFL_VIF },
|
---|
500 | { "ac", NULL, X86_EFL_AC },
|
---|
501 | { "vm", NULL, X86_EFL_VM },
|
---|
502 | { "rf", NULL, X86_EFL_RF },
|
---|
503 | { "nt", NULL, X86_EFL_NT },
|
---|
504 | { "ov", "nv", X86_EFL_OF },
|
---|
505 | { "dn", "up", X86_EFL_DF },
|
---|
506 | { "ei", "di", X86_EFL_IF },
|
---|
507 | { "tf", NULL, X86_EFL_TF },
|
---|
508 | { "nt", "pl", X86_EFL_SF },
|
---|
509 | { "nz", "zr", X86_EFL_ZF },
|
---|
510 | { "ac", "na", X86_EFL_AF },
|
---|
511 | { "po", "pe", X86_EFL_PF },
|
---|
512 | { "cy", "nc", X86_EFL_CF },
|
---|
513 | };
|
---|
514 | char szEFlags[80];
|
---|
515 | char *psz = szEFlags;
|
---|
516 | uint32_t efl = pCtx->eflags.u32;
|
---|
517 | for (unsigned i = 0; i < ELEMENTS(aFlags); i++)
|
---|
518 | {
|
---|
519 | const char *pszAdd = aFlags[i].fFlag & efl ? aFlags[i].pszSet : aFlags[i].pszClear;
|
---|
520 | if (pszAdd)
|
---|
521 | {
|
---|
522 | strcpy(psz, pszAdd);
|
---|
523 | psz += strlen(pszAdd);
|
---|
524 | *psz++ = ' ';
|
---|
525 | }
|
---|
526 | }
|
---|
527 | psz[-1] = '\0';
|
---|
528 |
|
---|
529 |
|
---|
530 | /*
|
---|
531 | * Format the registers.
|
---|
532 | */
|
---|
533 | Log(("eax=%08x ebx=%08x ecx=%08x edx=%08x esi=%08x edi=%08x\n"
|
---|
534 | "eip=%08x esp=%08x ebp=%08x iopl=%d %*s\n"
|
---|
535 | "cs={%04x base=%08x limit=%08x flags=%08x} dr0=%08x dr1=%08x\n"
|
---|
536 | "ds={%04x base=%08x limit=%08x flags=%08x} dr2=%08x dr3=%08x\n"
|
---|
537 | "es={%04x base=%08x limit=%08x flags=%08x} dr4=%08x dr5=%08x\n"
|
---|
538 | "fs={%04x base=%08x limit=%08x flags=%08x} dr6=%08x dr7=%08x\n"
|
---|
539 | ,
|
---|
540 | pCtx->eax, pCtx->ebx, pCtx->ecx, pCtx->edx, pCtx->esi, pCtx->edi,
|
---|
541 | pCtx->eip, pCtx->esp, pCtx->ebp, X86_EFL_GET_IOPL(efl), 31, szEFlags,
|
---|
542 | (RTSEL)pCtx->cs, pCtx->csHid.u32Base, pCtx->csHid.u32Limit, pCtx->csHid.Attr.u, pCtx->dr0, pCtx->dr1,
|
---|
543 | (RTSEL)pCtx->ds, pCtx->dsHid.u32Base, pCtx->dsHid.u32Limit, pCtx->dsHid.Attr.u, pCtx->dr2, pCtx->dr3,
|
---|
544 | (RTSEL)pCtx->es, pCtx->esHid.u32Base, pCtx->esHid.u32Limit, pCtx->esHid.Attr.u, pCtx->dr4, pCtx->dr5,
|
---|
545 | (RTSEL)pCtx->fs, pCtx->fsHid.u32Base, pCtx->fsHid.u32Limit, pCtx->fsHid.Attr.u, pCtx->dr6, pCtx->dr7));
|
---|
546 |
|
---|
547 | Log(("gs={%04x base=%08x limit=%08x flags=%08x} cr0=%08x cr2=%08x\n"
|
---|
548 | "ss={%04x base=%08x limit=%08x flags=%08x} cr3=%08x cr4=%08x\n"
|
---|
549 | "gdtr=%08x:%04x idtr=%08x:%04x eflags=%08x\n"
|
---|
550 | "ldtr={%04x base=%08x limit=%08x flags=%08x}\n"
|
---|
551 | "tr ={%04x base=%08x limit=%08x flags=%08x}\n"
|
---|
552 | "SysEnter={cs=%04llx eip=%08llx esp=%08llx}\n"
|
---|
553 | "FCW=%04x FSW=%04x FTW=%04x\n",
|
---|
554 | (RTSEL)pCtx->gs, pCtx->gsHid.u32Base, pCtx->gsHid.u32Limit, pCtx->gsHid.Attr.u, pCtx->cr0, pCtx->cr2,
|
---|
555 | (RTSEL)pCtx->ss, pCtx->ssHid.u32Base, pCtx->ssHid.u32Limit, pCtx->ssHid.Attr.u, pCtx->cr3, pCtx->cr4,
|
---|
556 | pCtx->gdtr.pGdt, pCtx->gdtr.cbGdt, pCtx->idtr.pIdt, pCtx->idtr.cbIdt, efl,
|
---|
557 | (RTSEL)pCtx->ldtr, pCtx->ldtrHid.u32Base, pCtx->ldtrHid.u32Limit, pCtx->ldtrHid.Attr.u,
|
---|
558 | (RTSEL)pCtx->tr, pCtx->trHid.u32Base, pCtx->trHid.u32Limit, pCtx->trHid.Attr.u,
|
---|
559 | pCtx->SysEnter.cs, pCtx->SysEnter.eip, pCtx->SysEnter.esp,
|
---|
560 | pCtx->fpu.FCW, pCtx->fpu.FSW, pCtx->fpu.FTW));
|
---|
561 |
|
---|
562 |
|
---|
563 | }
|
---|
564 | #endif
|
---|