1 | /* $Id: HWVMXR0.h 4071 2007-08-07 17:07:59Z vboxsync $ */
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2 | /** @file
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3 | * HWACCM SVM - 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 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 | #ifndef ___HWVMXR0_h
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19 | #define ___HWVMXR0_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/em.h>
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24 | #include <VBox/stam.h>
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25 | #include <VBox/dis.h>
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26 | #include <VBox/hwaccm.h>
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27 | #include <VBox/pgm.h>
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28 | #include <VBox/hwacc_vmx.h>
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29 |
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30 | __BEGIN_DECLS
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31 |
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32 | /** @defgroup grp_vmx Internal
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33 | * @ingroup grp_vmx
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34 | * @internal
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35 | * @{
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36 | */
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37 |
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38 | #ifdef IN_RING0
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39 |
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40 | /**
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41 | * Enable VMX
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42 | *
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43 | * @returns VBox status code.
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44 | * @param pVM The VM to operate on.
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45 | */
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46 | HWACCMR0DECL(int) VMXR0Enable(PVM pVM);
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47 |
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48 | /**
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49 | * Disable VMX
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50 | *
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51 | * @returns VBox status code.
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52 | * @param pVM The VM to operate on.
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53 | */
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54 | HWACCMR0DECL(int) VMXR0Disable(PVM pVM);
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55 |
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56 | /**
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57 | * Sets up and activates VMX
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58 | *
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59 | * @returns VBox status code.
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60 | * @param pVM The VM to operate on.
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61 | */
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62 | HWACCMR0DECL(int) VMXR0Setup(PVM pVM);
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63 |
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64 |
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65 | /**
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66 | * Save the host state
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67 | *
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68 | * @returns VBox status code.
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69 | * @param pVM The VM to operate on.
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70 | */
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71 | HWACCMR0DECL(int) VMXR0SaveHostState(PVM pVM);
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72 |
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73 | /**
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74 | * Loads the guest state
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75 | *
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76 | * @returns VBox status code.
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77 | * @param pVM The VM to operate on.
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78 | * @param pCtx Guest context
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79 | */
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80 | HWACCMR0DECL(int) VMXR0LoadGuestState(PVM pVM, CPUMCTX *pCtx);
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81 |
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82 |
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83 | /**
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84 | * Runs guest code in a VMX VM.
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85 | *
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86 | * @note NEVER EVER turn on interrupts here. Due to our illegal entry into the kernel, it might mess things up. (XP kernel traps have been frequently observed)
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87 | *
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88 | * @returns VBox status code.
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89 | * @param pVM The VM to operate on.
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90 | * @param pCtx Guest context
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91 | */
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92 | HWACCMR0DECL(int) VMXR0RunGuestCode(PVM pVM, CPUMCTX *pCtx);
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93 |
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94 |
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95 | #define VMX_WRITE_SELREG(REG, reg) \
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96 | rc = VMXWriteVMCS(VMX_VMCS_GUEST_FIELD_##REG, pCtx->reg); \
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97 | rc |= VMXWriteVMCS(VMX_VMCS_GUEST_##REG##_LIMIT, pCtx->reg##Hid.u32Limit); \
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98 | rc |= VMXWriteVMCS(VMX_VMCS_GUEST_##REG##_BASE, pCtx->reg##Hid.u32Base); \
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99 | if (pCtx->eflags.u32 & X86_EFL_VM) \
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100 | val = pCtx->reg##Hid.Attr.u; \
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101 | else \
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102 | if (pCtx->reg && pCtx->reg##Hid.Attr.n.u1Present == 1) \
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103 | val = pCtx->reg##Hid.Attr.u | X86_SEL_TYPE_ACCESSED; \
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104 | else \
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105 | val = 0x10000; /* Invalid guest state error otherwise. (BIT(16) = Unusable) */ \
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106 | \
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107 | rc |= VMXWriteVMCS(VMX_VMCS_GUEST_##REG##_ACCESS_RIGHTS, val);
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108 |
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109 | #define VMX_READ_SELREG(REG, reg) \
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110 | VMXReadVMCS(VMX_VMCS_GUEST_FIELD_##REG, &val); \
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111 | pCtx->reg = val; \
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112 | VMXReadVMCS(VMX_VMCS_GUEST_##REG##_LIMIT, &val); \
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113 | pCtx->reg##Hid.u32Limit = val; \
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114 | VMXReadVMCS(VMX_VMCS_GUEST_##REG##_BASE, &val); \
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115 | pCtx->reg##Hid.u32Base = val; \
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116 | VMXReadVMCS(VMX_VMCS_GUEST_##REG##_ACCESS_RIGHTS, &val); \
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117 | pCtx->reg##Hid.Attr.u = val;
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118 |
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119 |
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120 | #endif /* IN_RING0 */
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121 |
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122 | /** @} */
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123 |
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124 | __END_DECLS
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125 |
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126 | #endif
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127 |
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