1 | /* $Id: EMInternal.h 47807 2013-08-16 12:54:26Z vboxsync $ */
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2 | /** @file
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3 | * EM - Internal header file.
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4 | */
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5 |
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6 | /*
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7 | * Copyright (C) 2006-2012 Oracle Corporation
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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 |
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18 | #ifndef ___EMInternal_h
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19 | #define ___EMInternal_h
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20 |
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21 | #include <VBox/cdefs.h>
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22 | #include <VBox/types.h>
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23 | #include <VBox/vmm/em.h>
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24 | #include <VBox/vmm/stam.h>
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25 | #include <VBox/vmm/patm.h>
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26 | #include <VBox/dis.h>
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27 | #include <VBox/vmm/pdmcritsect.h>
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28 | #include <iprt/avl.h>
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29 | #include <setjmp.h>
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30 |
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31 | RT_C_DECLS_BEGIN
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32 |
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33 |
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34 | /** @defgroup grp_em_int Internal
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35 | * @ingroup grp_em
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36 | * @internal
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37 | * @{
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38 | */
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39 |
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40 | /** The saved state version. */
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41 | #define EM_SAVED_STATE_VERSION 5
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42 | #define EM_SAVED_STATE_VERSION_PRE_IEM 4
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43 | #define EM_SAVED_STATE_VERSION_PRE_MWAIT 3
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44 | #define EM_SAVED_STATE_VERSION_PRE_SMP 2
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45 |
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46 |
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47 | /** @name MWait state flags.
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48 | * @{
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49 | */
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50 | /** MWait activated. */
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51 | #define EMMWAIT_FLAG_ACTIVE RT_BIT(0)
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52 | /** MWait will continue when an interrupt is pending even when IF=0. */
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53 | #define EMMWAIT_FLAG_BREAKIRQIF0 RT_BIT(1)
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54 | /** Monitor instruction was executed previously. */
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55 | #define EMMWAIT_FLAG_MONITOR_ACTIVE RT_BIT(2)
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56 | /** @} */
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57 |
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58 | /** EM time slice in ms; used for capping execution time. */
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59 | #define EM_TIME_SLICE 100
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60 |
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61 | /**
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62 | * Cli node structure
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63 | */
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64 | typedef struct CLISTAT
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65 | {
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66 | /** The key is the cli address. */
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67 | AVLGCPTRNODECORE Core;
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68 | #if HC_ARCH_BITS == 32 && !defined(RT_OS_WINDOWS)
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69 | /** Padding. */
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70 | uint32_t u32Padding;
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71 | #endif
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72 | /** Occurrences. */
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73 | STAMCOUNTER Counter;
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74 | } CLISTAT, *PCLISTAT;
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75 | #ifdef IN_RING3
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76 | AssertCompileMemberAlignment(CLISTAT, Counter, 8);
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77 | #endif
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78 |
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79 |
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80 | /**
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81 | * Excessive EM statistics.
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82 | */
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83 | typedef struct EMSTATS
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84 | {
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85 | /** GC: Profiling of EMInterpretInstruction(). */
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86 | STAMPROFILE StatRZEmulate;
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87 | /** HC: Profiling of EMInterpretInstruction(). */
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88 | STAMPROFILE StatR3Emulate;
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89 |
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90 | /** @name Interpreter Instruction statistics.
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91 | * @{
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92 | */
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93 | STAMCOUNTER StatRZInterpretSucceeded;
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94 | STAMCOUNTER StatR3InterpretSucceeded;
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95 |
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96 | STAMCOUNTER StatRZAnd;
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97 | STAMCOUNTER StatR3And;
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98 | STAMCOUNTER StatRZCpuId;
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99 | STAMCOUNTER StatR3CpuId;
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100 | STAMCOUNTER StatRZDec;
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101 | STAMCOUNTER StatR3Dec;
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102 | STAMCOUNTER StatRZHlt;
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103 | STAMCOUNTER StatR3Hlt;
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104 | STAMCOUNTER StatRZInc;
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105 | STAMCOUNTER StatR3Inc;
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106 | STAMCOUNTER StatRZInvlPg;
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107 | STAMCOUNTER StatR3InvlPg;
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108 | STAMCOUNTER StatRZIret;
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109 | STAMCOUNTER StatR3Iret;
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110 | STAMCOUNTER StatRZLLdt;
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111 | STAMCOUNTER StatR3LLdt;
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112 | STAMCOUNTER StatRZLIdt;
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113 | STAMCOUNTER StatR3LIdt;
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114 | STAMCOUNTER StatRZLGdt;
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115 | STAMCOUNTER StatR3LGdt;
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116 | STAMCOUNTER StatRZMov;
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117 | STAMCOUNTER StatR3Mov;
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118 | STAMCOUNTER StatRZMovCRx;
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119 | STAMCOUNTER StatR3MovCRx;
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120 | STAMCOUNTER StatRZMovDRx;
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121 | STAMCOUNTER StatR3MovDRx;
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122 | STAMCOUNTER StatRZOr;
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123 | STAMCOUNTER StatR3Or;
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124 | STAMCOUNTER StatRZPop;
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125 | STAMCOUNTER StatR3Pop;
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126 | STAMCOUNTER StatRZSti;
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127 | STAMCOUNTER StatR3Sti;
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128 | STAMCOUNTER StatRZXchg;
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129 | STAMCOUNTER StatR3Xchg;
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130 | STAMCOUNTER StatRZXor;
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131 | STAMCOUNTER StatR3Xor;
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132 | STAMCOUNTER StatRZMonitor;
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133 | STAMCOUNTER StatR3Monitor;
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134 | STAMCOUNTER StatRZMWait;
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135 | STAMCOUNTER StatR3MWait;
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136 | STAMCOUNTER StatRZAdd;
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137 | STAMCOUNTER StatR3Add;
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138 | STAMCOUNTER StatRZSub;
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139 | STAMCOUNTER StatR3Sub;
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140 | STAMCOUNTER StatRZAdc;
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141 | STAMCOUNTER StatR3Adc;
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142 | STAMCOUNTER StatRZRdtsc;
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143 | STAMCOUNTER StatR3Rdtsc;
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144 | STAMCOUNTER StatRZRdpmc;
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145 | STAMCOUNTER StatR3Rdpmc;
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146 | STAMCOUNTER StatRZBtr;
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147 | STAMCOUNTER StatR3Btr;
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148 | STAMCOUNTER StatRZBts;
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149 | STAMCOUNTER StatR3Bts;
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150 | STAMCOUNTER StatRZBtc;
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151 | STAMCOUNTER StatR3Btc;
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152 | STAMCOUNTER StatRZCmpXchg;
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153 | STAMCOUNTER StatR3CmpXchg;
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154 | STAMCOUNTER StatRZCmpXchg8b;
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155 | STAMCOUNTER StatR3CmpXchg8b;
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156 | STAMCOUNTER StatRZXAdd;
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157 | STAMCOUNTER StatR3XAdd;
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158 | STAMCOUNTER StatRZClts;
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159 | STAMCOUNTER StatR3Clts;
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160 | STAMCOUNTER StatRZStosWD;
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161 | STAMCOUNTER StatR3StosWD;
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162 | STAMCOUNTER StatR3Rdmsr;
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163 | STAMCOUNTER StatR3Wrmsr;
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164 | STAMCOUNTER StatRZRdmsr;
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165 | STAMCOUNTER StatRZWrmsr;
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166 | STAMCOUNTER StatRZWbInvd;
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167 | STAMCOUNTER StatR3WbInvd;
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168 | STAMCOUNTER StatRZLmsw;
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169 | STAMCOUNTER StatR3Lmsw;
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170 | STAMCOUNTER StatRZSmsw;
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171 | STAMCOUNTER StatR3Smsw;
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172 |
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173 | STAMCOUNTER StatRZInterpretFailed;
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174 | STAMCOUNTER StatR3InterpretFailed;
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175 |
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176 | STAMCOUNTER StatRZFailedAnd;
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177 | STAMCOUNTER StatR3FailedAnd;
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178 | STAMCOUNTER StatRZFailedCpuId;
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179 | STAMCOUNTER StatR3FailedCpuId;
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180 | STAMCOUNTER StatRZFailedDec;
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181 | STAMCOUNTER StatR3FailedDec;
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182 | STAMCOUNTER StatRZFailedHlt;
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183 | STAMCOUNTER StatR3FailedHlt;
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184 | STAMCOUNTER StatRZFailedInc;
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185 | STAMCOUNTER StatR3FailedInc;
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186 | STAMCOUNTER StatRZFailedInvlPg;
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187 | STAMCOUNTER StatR3FailedInvlPg;
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188 | STAMCOUNTER StatRZFailedIret;
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189 | STAMCOUNTER StatR3FailedIret;
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190 | STAMCOUNTER StatRZFailedLLdt;
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191 | STAMCOUNTER StatR3FailedLLdt;
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192 | STAMCOUNTER StatRZFailedLGdt;
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193 | STAMCOUNTER StatR3FailedLGdt;
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194 | STAMCOUNTER StatRZFailedLIdt;
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195 | STAMCOUNTER StatR3FailedLIdt;
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196 | STAMCOUNTER StatRZFailedMisc;
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197 | STAMCOUNTER StatR3FailedMisc;
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198 | STAMCOUNTER StatRZFailedMov;
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199 | STAMCOUNTER StatR3FailedMov;
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200 | STAMCOUNTER StatRZFailedMovCRx;
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201 | STAMCOUNTER StatR3FailedMovCRx;
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202 | STAMCOUNTER StatRZFailedMovDRx;
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203 | STAMCOUNTER StatR3FailedMovDRx;
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204 | STAMCOUNTER StatRZFailedOr;
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205 | STAMCOUNTER StatR3FailedOr;
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206 | STAMCOUNTER StatRZFailedPop;
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207 | STAMCOUNTER StatR3FailedPop;
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208 | STAMCOUNTER StatRZFailedSti;
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209 | STAMCOUNTER StatR3FailedSti;
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210 | STAMCOUNTER StatRZFailedXchg;
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211 | STAMCOUNTER StatR3FailedXchg;
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212 | STAMCOUNTER StatRZFailedXor;
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213 | STAMCOUNTER StatR3FailedXor;
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214 | STAMCOUNTER StatRZFailedMonitor;
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215 | STAMCOUNTER StatR3FailedMonitor;
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216 | STAMCOUNTER StatRZFailedMWait;
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217 | STAMCOUNTER StatR3FailedMWait;
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218 | STAMCOUNTER StatR3FailedRdmsr;
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219 | STAMCOUNTER StatR3FailedWrmsr;
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220 | STAMCOUNTER StatRZFailedRdmsr;
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221 | STAMCOUNTER StatRZFailedWrmsr;
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222 | STAMCOUNTER StatRZFailedLmsw;
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223 | STAMCOUNTER StatR3FailedLmsw;
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224 | STAMCOUNTER StatRZFailedSmsw;
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225 | STAMCOUNTER StatR3FailedSmsw;
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226 |
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227 | STAMCOUNTER StatRZFailedAdd;
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228 | STAMCOUNTER StatR3FailedAdd;
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229 | STAMCOUNTER StatRZFailedAdc;
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230 | STAMCOUNTER StatR3FailedAdc;
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231 | STAMCOUNTER StatRZFailedBtr;
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232 | STAMCOUNTER StatR3FailedBtr;
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233 | STAMCOUNTER StatRZFailedBts;
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234 | STAMCOUNTER StatR3FailedBts;
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235 | STAMCOUNTER StatRZFailedBtc;
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236 | STAMCOUNTER StatR3FailedBtc;
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237 | STAMCOUNTER StatRZFailedCli;
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238 | STAMCOUNTER StatR3FailedCli;
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239 | STAMCOUNTER StatRZFailedCmpXchg;
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240 | STAMCOUNTER StatR3FailedCmpXchg;
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241 | STAMCOUNTER StatRZFailedCmpXchg8b;
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242 | STAMCOUNTER StatR3FailedCmpXchg8b;
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243 | STAMCOUNTER StatRZFailedXAdd;
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244 | STAMCOUNTER StatR3FailedXAdd;
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245 | STAMCOUNTER StatR3FailedMovNTPS;
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246 | STAMCOUNTER StatRZFailedMovNTPS;
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247 | STAMCOUNTER StatRZFailedStosWD;
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248 | STAMCOUNTER StatR3FailedStosWD;
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249 | STAMCOUNTER StatRZFailedSub;
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250 | STAMCOUNTER StatR3FailedSub;
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251 | STAMCOUNTER StatRZFailedWbInvd;
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252 | STAMCOUNTER StatR3FailedWbInvd;
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253 | STAMCOUNTER StatRZFailedRdtsc;
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254 | STAMCOUNTER StatR3FailedRdtsc;
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255 | STAMCOUNTER StatRZFailedRdpmc;
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256 | STAMCOUNTER StatR3FailedRdpmc;
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257 | STAMCOUNTER StatRZFailedClts;
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258 | STAMCOUNTER StatR3FailedClts;
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259 |
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260 | STAMCOUNTER StatRZFailedUserMode;
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261 | STAMCOUNTER StatR3FailedUserMode;
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262 | STAMCOUNTER StatRZFailedPrefix;
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263 | STAMCOUNTER StatR3FailedPrefix;
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264 | /** @} */
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265 |
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266 | /** @name Privileged Instructions Ending Up In HC.
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267 | * @{ */
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268 | STAMCOUNTER StatIoRestarted;
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269 | #ifdef VBOX_WITH_FIRST_IEM_STEP
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270 | STAMCOUNTER StatIoIem;
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271 | #else
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272 | STAMCOUNTER StatIn;
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273 | STAMCOUNTER StatOut;
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274 | #endif
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275 | STAMCOUNTER StatCli;
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276 | STAMCOUNTER StatSti;
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277 | STAMCOUNTER StatInvlpg;
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278 | STAMCOUNTER StatHlt;
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279 | STAMCOUNTER StatMovReadCR[DISCREG_CR4 + 1];
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280 | STAMCOUNTER StatMovWriteCR[DISCREG_CR4 + 1];
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281 | STAMCOUNTER StatMovDRx;
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282 | STAMCOUNTER StatIret;
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283 | STAMCOUNTER StatMovLgdt;
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284 | STAMCOUNTER StatMovLldt;
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285 | STAMCOUNTER StatMovLidt;
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286 | STAMCOUNTER StatMisc;
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287 | STAMCOUNTER StatSysEnter;
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288 | STAMCOUNTER StatSysExit;
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289 | STAMCOUNTER StatSysCall;
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290 | STAMCOUNTER StatSysRet;
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291 | /** @} */
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292 |
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293 | } EMSTATS;
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294 | /** Pointer to the excessive EM statistics. */
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295 | typedef EMSTATS *PEMSTATS;
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296 |
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297 |
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298 | /**
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299 | * Converts a EM pointer into a VM pointer.
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300 | * @returns Pointer to the VM structure the EM is part of.
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301 | * @param pEM Pointer to EM instance data.
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302 | */
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303 | #define EM2VM(pEM) ( (PVM)((char*)pEM - pEM->offVM) )
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304 |
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305 | /**
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306 | * EM VM Instance data.
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307 | * Changes to this must checked against the padding of the cfgm union in VM!
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308 | */
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309 | typedef struct EM
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310 | {
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311 | /** Offset to the VM structure.
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312 | * See EM2VM(). */
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313 | RTUINT offVM;
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314 |
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315 | /** Whether IEM executes everything. */
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316 | bool fIemExecutesAll;
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317 | /** Alignment padding. */
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318 | bool afPadding[7];
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319 |
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320 | /** Id of the VCPU that last executed code in the recompiler. */
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321 | VMCPUID idLastRemCpu;
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322 |
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323 | #ifdef VBOX_WITH_REM
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324 | /** REM critical section.
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325 | * This protects recompiler usage
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326 | */
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327 | PDMCRITSECT CritSectREM;
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328 | #endif
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329 | } EM;
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330 | /** Pointer to EM VM instance data. */
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331 | typedef EM *PEM;
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332 |
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333 |
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334 | /**
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335 | * EM VMCPU Instance data.
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336 | */
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337 | typedef struct EMCPU
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338 | {
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339 | /** Execution Manager State. */
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340 | EMSTATE volatile enmState;
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341 |
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342 | /** The state prior to the suspending of the VM. */
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343 | EMSTATE enmPrevState;
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344 |
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345 | /** Force raw-mode execution.
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346 | * This is used to prevent REM from trying to execute patch code.
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347 | * The flag is cleared upon entering emR3RawExecute() and updated in certain return paths. */
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348 | bool fForceRAW;
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349 |
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350 | uint8_t u8Padding[3];
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351 |
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352 | /** The number of instructions we've executed in IEM since switching to the
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353 | * EMSTATE_IEM_THEN_REM state. */
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354 | uint32_t cIemThenRemInstructions;
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355 |
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356 | /** Inhibit interrupts for this instruction. Valid only when VM_FF_INHIBIT_INTERRUPTS is set. */
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357 | RTGCUINTPTR GCPtrInhibitInterrupts;
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358 |
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359 | #ifdef VBOX_WITH_RAW_MODE
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360 | /** Pointer to the PATM status structure. (R3 Ptr) */
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361 | R3PTRTYPE(PPATMGCSTATE) pPatmGCState;
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362 | #endif
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363 |
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364 | /** Pointer to the guest CPUM state. (R3 Ptr) */
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365 | R3PTRTYPE(PCPUMCTX) pCtx;
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366 |
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367 | #if GC_ARCH_BITS == 64
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368 | RTGCPTR aPadding1;
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369 | #endif
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370 |
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371 | /** Start of the current time slice in ms. */
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372 | uint64_t u64TimeSliceStart;
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373 | /** Start of the current time slice in thread execution time (ms). */
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374 | uint64_t u64TimeSliceStartExec;
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375 | /** Current time slice value. */
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376 | uint64_t u64TimeSliceExec;
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377 | uint64_t u64Alignment;
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378 |
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379 | /** MWait halt state. */
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380 | struct
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381 | {
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382 | uint32_t fWait; /** Type of mwait; see EMMWAIT_FLAG_*. */
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383 | uint32_t u32Padding;
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384 | RTGCPTR uMWaitRAX; /** MWAIT hints. */
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385 | RTGCPTR uMWaitRCX; /** MWAIT extensions. */
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386 | RTGCPTR uMonitorRAX; /** Monitored address. */
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387 | RTGCPTR uMonitorRCX; /** Monitor extension. */
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388 | RTGCPTR uMonitorRDX; /** Monitor hint. */
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389 | } MWait;
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390 |
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391 | union
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392 | {
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393 | /** Padding used in the other rings.
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394 | * This must be larger than jmp_buf on any supported platform. */
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395 | char achPaddingFatalLongJump[HC_ARCH_BITS == 32 ? 176 : 256];
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396 | #ifdef IN_RING3
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397 | /** Long buffer jump for fatal VM errors.
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398 | * It will jump to before the outer EM loop is entered. */
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399 | jmp_buf FatalLongJump;
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400 | #endif
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401 | } u;
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402 |
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403 | /** For saving stack space, the disassembler state is allocated here instead of
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404 | * on the stack. */
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405 | DISCPUSTATE DisState;
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406 |
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407 | /** @name Execution profiling.
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408 | * @{ */
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409 | STAMPROFILE StatForcedActions;
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410 | STAMPROFILE StatHalted;
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411 | STAMPROFILEADV StatCapped;
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412 | STAMPROFILEADV StatHmEntry;
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413 | STAMPROFILE StatHmExec;
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414 | STAMPROFILE StatIEMEmu;
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415 | STAMPROFILE StatIEMThenREM;
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416 | STAMPROFILE StatREMEmu;
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417 | STAMPROFILE StatREMExec;
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418 | STAMPROFILE StatREMSync;
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419 | STAMPROFILEADV StatREMTotal;
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420 | STAMPROFILE StatRAWExec;
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421 | STAMPROFILEADV StatRAWEntry;
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422 | STAMPROFILEADV StatRAWTail;
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423 | STAMPROFILEADV StatRAWTotal;
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424 | STAMPROFILEADV StatTotal;
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425 | /** @} */
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426 |
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427 | /** R3: Profiling of emR3RawExecuteIOInstruction. */
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428 | STAMPROFILE StatIOEmu;
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429 | /** R3: Profiling of emR3RawPrivileged. */
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430 | STAMPROFILE StatPrivEmu;
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431 | /** R3: Number of time emR3HmExecute is called. */
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432 | STAMCOUNTER StatHmExecuteEntry;
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433 |
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434 | /** More statistics (R3). */
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435 | R3PTRTYPE(PEMSTATS) pStatsR3;
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436 | /** More statistics (R0). */
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437 | R0PTRTYPE(PEMSTATS) pStatsR0;
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438 | /** More statistics (RC). */
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439 | RCPTRTYPE(PEMSTATS) pStatsRC;
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440 | #if HC_ARCH_BITS == 64
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441 | RTRCPTR padding0;
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442 | #endif
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443 |
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444 | /** Tree for keeping track of cli occurrences (debug only). */
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445 | R3PTRTYPE(PAVLGCPTRNODECORE) pCliStatTree;
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446 | STAMCOUNTER StatTotalClis;
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447 | #if 0
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448 | /** 64-bit Visual C++ rounds the struct size up to 16 byte. */
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449 | uint64_t padding1;
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450 | #endif
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451 | } EMCPU;
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452 | /** Pointer to EM VM instance data. */
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453 | typedef EMCPU *PEMCPU;
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454 |
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455 | /** @} */
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456 |
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457 | int emR3InitDbg(PVM pVM);
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458 |
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459 | int emR3HmExecute(PVM pVM, PVMCPU pVCpu, bool *pfFFDone);
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460 | int emR3RawExecute(PVM pVM, PVMCPU pVCpu, bool *pfFFDone);
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461 | int emR3RawHandleRC(PVM pVM, PVMCPU pVCpu, PCPUMCTX pCtx, int rc);
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462 | int emR3HmHandleRC(PVM pVM, PVMCPU pVCpu, PCPUMCTX pCtx, int rc);
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463 | EMSTATE emR3Reschedule(PVM pVM, PVMCPU pVCpu, PCPUMCTX pCtx);
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464 | int emR3ForcedActions(PVM pVM, PVMCPU pVCpu, int rc);
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465 | int emR3HighPriorityPostForcedActions(PVM pVM, PVMCPU pVCpu, int rc);
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466 | int emR3RawUpdateForceFlag(PVM pVM, PVMCPU pVCpu, PCPUMCTX pCtx, int rc);
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467 | int emR3RawResumeHyper(PVM pVM, PVMCPU pVCpu);
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468 | int emR3RawStep(PVM pVM, PVMCPU pVCpu);
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469 | int emR3SingleStepExecRem(PVM pVM, PVMCPU pVCpu, uint32_t cIterations);
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470 | bool emR3IsExecutionAllowed(PVM pVM, PVMCPU pVCpu);
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471 |
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472 | RT_C_DECLS_END
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473 |
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474 | #endif
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475 |
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