1 | /* $Id: HWVMXR0.h 13195 2008-10-13 08:45:56Z vboxsync $ */
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2 | /** @file
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3 | * HWACCM VT-x - 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) 2006-2007 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 | #ifndef ___HWVMXR0_h
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23 | #define ___HWVMXR0_h
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24 |
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25 | #include <VBox/cdefs.h>
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26 | #include <VBox/types.h>
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27 | #include <VBox/em.h>
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28 | #include <VBox/stam.h>
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29 | #include <VBox/dis.h>
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30 | #include <VBox/hwaccm.h>
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31 | #include <VBox/pgm.h>
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32 | #include <VBox/hwacc_vmx.h>
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33 |
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34 | __BEGIN_DECLS
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35 |
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36 | /** @defgroup grp_vmx_int Internal
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37 | * @ingroup grp_vmx
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38 | * @internal
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39 | * @{
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40 | */
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41 |
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42 | #ifdef IN_RING0
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43 |
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44 | /**
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45 | * Enters the VT-x session
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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 | * @param pCpu CPU info struct
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50 | */
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51 | VMMR0DECL(int) VMXR0Enter(PVM pVMm, PHWACCM_CPUINFO pCpu);
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52 |
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53 | /**
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54 | * Leaves the VT-x session
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55 | *
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56 | * @returns VBox status code.
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57 | * @param pVM The VM to operate on.
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58 | * @param pCtx CPU context
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59 | */
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60 | VMMR0DECL(int) VMXR0Leave(PVM pVM, PCPUMCTX pCtx);
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61 |
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62 |
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63 | /**
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64 | * Sets up and activates VT-x on the current CPU
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65 | *
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66 | * @returns VBox status code.
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67 | * @param pCpu CPU info struct
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68 | * @param pVM The VM to operate on.
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69 | * @param pvPageCpu Pointer to the global cpu page
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70 | * @param pPageCpuPhys Physical address of the global cpu page
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71 | */
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72 | VMMR0DECL(int) VMXR0EnableCpu(PHWACCM_CPUINFO pCpu, PVM pVM, void *pvPageCpu, RTHCPHYS pPageCpuPhys);
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73 |
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74 | /**
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75 | * Deactivates VT-x on the current CPU
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76 | *
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77 | * @returns VBox status code.
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78 | * @param pCpu CPU info struct
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79 | * @param pvPageCpu Pointer to the global cpu page
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80 | * @param pPageCpuPhys Physical address of the global cpu page
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81 | */
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82 | VMMR0DECL(int) VMXR0DisableCpu(PHWACCM_CPUINFO pCpu, void *pvPageCpu, RTHCPHYS pPageCpuPhys);
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83 |
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84 | /**
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85 | * Does Ring-0 per VM VT-x init.
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86 | *
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87 | * @returns VBox status code.
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88 | * @param pVM The VM to operate on.
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89 | */
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90 | VMMR0DECL(int) VMXR0InitVM(PVM pVM);
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91 |
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92 | /**
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93 | * Does Ring-0 per VM VT-x termination.
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94 | *
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95 | * @returns VBox status code.
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96 | * @param pVM The VM to operate on.
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97 | */
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98 | VMMR0DECL(int) VMXR0TermVM(PVM pVM);
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99 |
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100 | /**
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101 | * Sets up VT-x for the specified VM
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102 | *
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103 | * @returns VBox status code.
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104 | * @param pVM The VM to operate on.
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105 | */
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106 | VMMR0DECL(int) VMXR0SetupVM(PVM pVM);
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107 |
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108 |
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109 | /**
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110 | * Save the host state
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111 | *
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112 | * @returns VBox status code.
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113 | * @param pVM The VM to operate on.
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114 | */
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115 | VMMR0DECL(int) VMXR0SaveHostState(PVM pVM);
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116 |
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117 | /**
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118 | * Loads the guest state
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119 | *
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120 | * @returns VBox status code.
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121 | * @param pVM The VM to operate on.
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122 | * @param pCtx Guest context
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123 | */
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124 | VMMR0DECL(int) VMXR0LoadGuestState(PVM pVM, CPUMCTX *pCtx);
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125 |
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126 |
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127 | /**
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128 | * Runs guest code in a VT-x VM.
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129 | *
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130 | * @returns VBox status code.
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131 | * @param pVM The VM to operate on.
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132 | * @param pCtx Guest context
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133 | */
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134 | VMMR0DECL(int) VMXR0RunGuestCode(PVM pVM, CPUMCTX *pCtx);
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135 |
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136 |
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137 | #define VMX_WRITE_SELREG(REG, reg) \
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138 | { \
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139 | rc = VMXWriteVMCS32(VMX_VMCS_GUEST_FIELD_##REG, pCtx->reg); \
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140 | rc |= VMXWriteVMCS32(VMX_VMCS_GUEST_##REG##_LIMIT, pCtx->reg##Hid.u32Limit); \
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141 | rc |= VMXWriteVMCS64(VMX_VMCS_GUEST_##REG##_BASE, pCtx->reg##Hid.u64Base); \
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142 | if ((pCtx->eflags.u32 & X86_EFL_VM)) \
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143 | val = pCtx->reg##Hid.Attr.u; \
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144 | else \
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145 | if (CPUMIsGuestInRealModeEx(pCtx)) \
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146 | { \
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147 | /* Must override this or else VT-x will fail with invalid guest state errors. */ \
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148 | /* DPL=3, present, code/data, r/w/accessed. */ \
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149 | val = 0xf3; \
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150 | } \
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151 | else \
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152 | if ( ((!pCtx->csHid.Attr.n.u1DefBig && !CPUMIsGuestIn64BitCodeEx(pCtx)) || pCtx->reg) \
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153 | && pCtx->reg##Hid.Attr.n.u1Present == 1) \
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154 | val = pCtx->reg##Hid.Attr.u | X86_SEL_TYPE_ACCESSED; \
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155 | else \
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156 | val = 0x10000; /* Invalid guest state error otherwise. (BIT(16) = Unusable) */ \
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157 | \
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158 | rc |= VMXWriteVMCS32(VMX_VMCS_GUEST_##REG##_ACCESS_RIGHTS, val); \
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159 | }
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160 |
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161 | #define VMX_READ_SELREG(REG, reg) \
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162 | { \
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163 | VMXReadVMCS(VMX_VMCS_GUEST_FIELD_##REG, &val); \
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164 | pCtx->reg = val; \
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165 | VMXReadVMCS(VMX_VMCS_GUEST_##REG##_LIMIT, &val); \
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166 | pCtx->reg##Hid.u32Limit = val; \
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167 | VMXReadVMCS(VMX_VMCS_GUEST_##REG##_BASE, &val); \
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168 | pCtx->reg##Hid.u64Base = val; \
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169 | VMXReadVMCS(VMX_VMCS_GUEST_##REG##_ACCESS_RIGHTS, &val); \
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170 | pCtx->reg##Hid.Attr.u = val; \
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171 | }
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172 |
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173 | #define VMX_LOG_SELREG(REG, szSelReg) \
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174 | { \
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175 | VMXReadVMCS(VMX_VMCS_GUEST_FIELD_##REG, &val); \
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176 | Log(("%s Selector %x\n", szSelReg, val)); \
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177 | VMXReadVMCS(VMX_VMCS_GUEST_##REG##_LIMIT, &val); \
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178 | Log(("%s Limit %x\n", szSelReg, val)); \
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179 | VMXReadVMCS(VMX_VMCS_GUEST_##REG##_BASE, &val); \
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180 | Log(("%s Base %RX64\n", szSelReg, val)); \
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181 | VMXReadVMCS(VMX_VMCS_GUEST_##REG##_ACCESS_RIGHTS, &val); \
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182 | Log(("%s Attributes %x\n", szSelReg, val)); \
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183 | }
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184 |
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185 |
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186 |
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187 | /**
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188 | * Prepares for and executes VMLAUNCH (32 bits guest mode)
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189 | *
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190 | * @returns VBox status code
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191 | * @param fResume vmlauch/vmresume
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192 | * @param pCtx Guest context
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193 | */
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194 | DECLASM(int) VMXR0StartVM32(RTHCUINT fResume, PCPUMCTX pCtx);
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195 |
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196 | /**
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197 | * Prepares for and executes VMLAUNCH (64 bits guest mode)
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198 | *
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199 | * @returns VBox status code
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200 | * @param fResume vmlauch/vmresume
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201 | * @param pCtx Guest context
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202 | */
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203 | DECLASM(int) VMXR0StartVM64(RTHCUINT fResume, PCPUMCTX pCtx);
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204 |
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205 | #endif /* IN_RING0 */
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206 |
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207 | /** @} */
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208 |
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209 | __END_DECLS
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210 |
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211 | #endif
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212 |
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