1 | /** @file
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2 | * IPRT - AMD64 and x86 Specific Assembly Functions.
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3 | */
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4 |
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5 | /*
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6 | * Copyright (C) 2006-2015 Oracle Corporation
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7 | *
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8 | * This file is part of VirtualBox Open Source Edition (OSE), as
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9 | * available from http://www.virtualbox.org. This file is free software;
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10 | * you can redistribute it and/or modify it under the terms of the GNU
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11 | * General Public License (GPL) as published by the Free Software
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12 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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13 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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14 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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15 | *
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16 | * The contents of this file may alternatively be used under the terms
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17 | * of the Common Development and Distribution License Version 1.0
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18 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
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19 | * VirtualBox OSE distribution, in which case the provisions of the
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20 | * CDDL are applicable instead of those of the GPL.
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21 | *
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22 | * You may elect to license modified versions of this file under the
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23 | * terms and conditions of either the GPL or the CDDL or both.
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24 | */
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25 |
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26 | #ifndef ___iprt_asm_amd64_x86_h
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27 | #define ___iprt_asm_amd64_x86_h
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28 |
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29 | #include <iprt/types.h>
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30 | #include <iprt/assert.h>
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31 | #if !defined(RT_ARCH_AMD64) && !defined(RT_ARCH_X86)
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32 | # error "Not on AMD64 or x86"
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33 | #endif
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34 |
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35 | #if defined(_MSC_VER) && RT_INLINE_ASM_USES_INTRIN
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36 | # include <intrin.h>
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37 | /* Emit the intrinsics at all optimization levels. */
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38 | # pragma intrinsic(_ReadWriteBarrier)
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39 | # pragma intrinsic(__cpuid)
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40 | # pragma intrinsic(_enable)
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41 | # pragma intrinsic(_disable)
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42 | # pragma intrinsic(__rdtsc)
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43 | # pragma intrinsic(__readmsr)
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44 | # pragma intrinsic(__writemsr)
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45 | # pragma intrinsic(__outbyte)
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46 | # pragma intrinsic(__outbytestring)
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47 | # pragma intrinsic(__outword)
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48 | # pragma intrinsic(__outwordstring)
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49 | # pragma intrinsic(__outdword)
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50 | # pragma intrinsic(__outdwordstring)
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51 | # pragma intrinsic(__inbyte)
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52 | # pragma intrinsic(__inbytestring)
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53 | # pragma intrinsic(__inword)
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54 | # pragma intrinsic(__inwordstring)
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55 | # pragma intrinsic(__indword)
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56 | # pragma intrinsic(__indwordstring)
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57 | # pragma intrinsic(__invlpg)
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58 | # pragma intrinsic(__wbinvd)
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59 | # pragma intrinsic(__readcr0)
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60 | # pragma intrinsic(__readcr2)
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61 | # pragma intrinsic(__readcr3)
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62 | # pragma intrinsic(__readcr4)
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63 | # pragma intrinsic(__writecr0)
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64 | # pragma intrinsic(__writecr3)
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65 | # pragma intrinsic(__writecr4)
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66 | # pragma intrinsic(__readdr)
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67 | # pragma intrinsic(__writedr)
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68 | # ifdef RT_ARCH_AMD64
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69 | # pragma intrinsic(__readcr8)
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70 | # pragma intrinsic(__writecr8)
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71 | # endif
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72 | # if RT_INLINE_ASM_USES_INTRIN >= 15
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73 | # pragma intrinsic(__readeflags)
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74 | # pragma intrinsic(__writeeflags)
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75 | # pragma intrinsic(__rdtscp)
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76 | # endif
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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 | /** @defgroup grp_rt_asm_amd64_x86 AMD64 and x86 Specific ASM Routines
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82 | * @ingroup grp_rt_asm
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83 | * @{
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84 | */
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85 |
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86 | /** @todo find a more proper place for these structures? */
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87 |
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88 | #pragma pack(1)
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89 | /** IDTR */
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90 | typedef struct RTIDTR
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91 | {
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92 | /** Size of the IDT. */
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93 | uint16_t cbIdt;
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94 | /** Address of the IDT. */
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95 | uintptr_t pIdt;
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96 | } RTIDTR, *PRTIDTR;
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97 | #pragma pack()
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98 |
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99 | #pragma pack(1)
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100 | /** @internal */
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101 | typedef struct RTIDTRALIGNEDINT
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102 | {
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103 | /** Alignment padding. */
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104 | uint8_t au16Padding[ARCH_BITS == 64 ? 3 : 1];
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105 | /** The IDTR structure. */
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106 | RTIDTR Idtr;
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107 | } RTIDTRALIGNEDINT;
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108 | #pragma pack()
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109 |
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110 | /** Wrapped RTIDTR for preventing misalignment exceptions. */
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111 | typedef union RTIDTRALIGNED
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112 | {
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113 | /** Try make sure this structure has optimal alignment. */
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114 | uint64_t auAlignmentHack[ARCH_BITS == 64 ? 2 : 1];
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115 | /** Aligned structure. */
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116 | RTIDTRALIGNEDINT s;
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117 | } RTIDTRALIGNED;
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118 | AssertCompileSize(RTIDTRALIGNED, ARCH_BITS * 2 / 8);
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119 | /** Pointer to a an RTIDTR alignment wrapper. */
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120 | typedef RTIDTRALIGNED *PRIDTRALIGNED;
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121 |
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122 |
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123 | #pragma pack(1)
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124 | /** GDTR */
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125 | typedef struct RTGDTR
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126 | {
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127 | /** Size of the GDT. */
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128 | uint16_t cbGdt;
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129 | /** Address of the GDT. */
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130 | uintptr_t pGdt;
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131 | } RTGDTR, *PRTGDTR;
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132 | #pragma pack()
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133 |
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134 | #pragma pack(1)
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135 | /** @internal */
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136 | typedef struct RTGDTRALIGNEDINT
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137 | {
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138 | /** Alignment padding. */
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139 | uint8_t au16Padding[ARCH_BITS == 64 ? 3 : 1];
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140 | /** The GDTR structure. */
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141 | RTGDTR Gdtr;
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142 | } RTGDTRALIGNEDINT;
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143 | #pragma pack()
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144 |
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145 | /** Wrapped RTGDTR for preventing misalignment exceptions. */
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146 | typedef union RTGDTRALIGNED
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147 | {
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148 | /** Try make sure this structure has optimal alignment. */
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149 | uint64_t auAlignmentHack[ARCH_BITS == 64 ? 2 : 1];
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150 | /** Aligned structure. */
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151 | RTGDTRALIGNEDINT s;
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152 | } RTGDTRALIGNED;
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153 | AssertCompileSize(RTGDTRALIGNED, ARCH_BITS * 2 / 8);
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154 | /** Pointer to a an RTGDTR alignment wrapper. */
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155 | typedef RTGDTRALIGNED *PRGDTRALIGNED;
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156 |
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157 |
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158 | /**
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159 | * Gets the content of the IDTR CPU register.
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160 | * @param pIdtr Where to store the IDTR contents.
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161 | */
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162 | #if RT_INLINE_ASM_EXTERNAL
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163 | DECLASM(void) ASMGetIDTR(PRTIDTR pIdtr);
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164 | #else
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165 | DECLINLINE(void) ASMGetIDTR(PRTIDTR pIdtr)
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166 | {
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167 | # if RT_INLINE_ASM_GNU_STYLE
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168 | __asm__ __volatile__("sidt %0" : "=m" (*pIdtr));
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169 | # else
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170 | __asm
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171 | {
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172 | # ifdef RT_ARCH_AMD64
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173 | mov rax, [pIdtr]
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174 | sidt [rax]
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175 | # else
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176 | mov eax, [pIdtr]
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177 | sidt [eax]
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178 | # endif
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179 | }
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180 | # endif
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181 | }
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182 | #endif
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183 |
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184 |
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185 | /**
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186 | * Gets the content of the IDTR.LIMIT CPU register.
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187 | * @returns IDTR limit.
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188 | */
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189 | #if RT_INLINE_ASM_EXTERNAL
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190 | DECLASM(uint16_t) ASMGetIdtrLimit(void);
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191 | #else
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192 | DECLINLINE(uint16_t) ASMGetIdtrLimit(void)
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193 | {
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194 | RTIDTRALIGNED TmpIdtr;
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195 | # if RT_INLINE_ASM_GNU_STYLE
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196 | __asm__ __volatile__("sidt %0" : "=m" (TmpIdtr.s.Idtr));
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197 | # else
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198 | __asm
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199 | {
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200 | sidt [TmpIdtr.s.Idtr]
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201 | }
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202 | # endif
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203 | return TmpIdtr.s.Idtr.cbIdt;
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204 | }
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205 | #endif
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206 |
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207 |
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208 | /**
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209 | * Sets the content of the IDTR CPU register.
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210 | * @param pIdtr Where to load the IDTR contents from
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211 | */
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212 | #if RT_INLINE_ASM_EXTERNAL
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213 | DECLASM(void) ASMSetIDTR(const RTIDTR *pIdtr);
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214 | #else
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215 | DECLINLINE(void) ASMSetIDTR(const RTIDTR *pIdtr)
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216 | {
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217 | # if RT_INLINE_ASM_GNU_STYLE
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218 | __asm__ __volatile__("lidt %0" : : "m" (*pIdtr));
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219 | # else
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220 | __asm
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221 | {
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222 | # ifdef RT_ARCH_AMD64
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223 | mov rax, [pIdtr]
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224 | lidt [rax]
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225 | # else
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226 | mov eax, [pIdtr]
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227 | lidt [eax]
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228 | # endif
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229 | }
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230 | # endif
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231 | }
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232 | #endif
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233 |
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234 |
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235 | /**
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236 | * Gets the content of the GDTR CPU register.
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237 | * @param pGdtr Where to store the GDTR contents.
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238 | */
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239 | #if RT_INLINE_ASM_EXTERNAL
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240 | DECLASM(void) ASMGetGDTR(PRTGDTR pGdtr);
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241 | #else
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242 | DECLINLINE(void) ASMGetGDTR(PRTGDTR pGdtr)
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243 | {
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244 | # if RT_INLINE_ASM_GNU_STYLE
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245 | __asm__ __volatile__("sgdt %0" : "=m" (*pGdtr));
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246 | # else
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247 | __asm
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248 | {
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249 | # ifdef RT_ARCH_AMD64
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250 | mov rax, [pGdtr]
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251 | sgdt [rax]
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252 | # else
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253 | mov eax, [pGdtr]
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254 | sgdt [eax]
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255 | # endif
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256 | }
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257 | # endif
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258 | }
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259 | #endif
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260 |
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261 |
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262 | /**
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263 | * Sets the content of the GDTR CPU register.
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264 | * @param pIdtr Where to load the GDTR contents from
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265 | */
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266 | #if RT_INLINE_ASM_EXTERNAL
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267 | DECLASM(void) ASMSetGDTR(const RTGDTR *pGdtr);
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268 | #else
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269 | DECLINLINE(void) ASMSetGDTR(const RTGDTR *pGdtr)
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270 | {
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271 | # if RT_INLINE_ASM_GNU_STYLE
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272 | __asm__ __volatile__("lgdt %0" : : "m" (*pGdtr));
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273 | # else
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274 | __asm
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275 | {
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276 | # ifdef RT_ARCH_AMD64
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277 | mov rax, [pGdtr]
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278 | lgdt [rax]
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279 | # else
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280 | mov eax, [pGdtr]
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281 | lgdt [eax]
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282 | # endif
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283 | }
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284 | # endif
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285 | }
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286 | #endif
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287 |
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288 |
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289 |
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290 | /**
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291 | * Get the cs register.
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292 | * @returns cs.
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293 | */
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294 | #if RT_INLINE_ASM_EXTERNAL
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295 | DECLASM(RTSEL) ASMGetCS(void);
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296 | #else
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297 | DECLINLINE(RTSEL) ASMGetCS(void)
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298 | {
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299 | RTSEL SelCS;
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300 | # if RT_INLINE_ASM_GNU_STYLE
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301 | __asm__ __volatile__("movw %%cs, %0\n\t" : "=r" (SelCS));
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302 | # else
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303 | __asm
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304 | {
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305 | mov ax, cs
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306 | mov [SelCS], ax
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307 | }
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308 | # endif
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309 | return SelCS;
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310 | }
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311 | #endif
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312 |
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313 |
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314 | /**
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315 | * Get the DS register.
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316 | * @returns DS.
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317 | */
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318 | #if RT_INLINE_ASM_EXTERNAL
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319 | DECLASM(RTSEL) ASMGetDS(void);
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320 | #else
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321 | DECLINLINE(RTSEL) ASMGetDS(void)
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322 | {
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323 | RTSEL SelDS;
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324 | # if RT_INLINE_ASM_GNU_STYLE
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325 | __asm__ __volatile__("movw %%ds, %0\n\t" : "=r" (SelDS));
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326 | # else
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327 | __asm
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328 | {
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329 | mov ax, ds
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330 | mov [SelDS], ax
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331 | }
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332 | # endif
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333 | return SelDS;
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334 | }
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335 | #endif
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336 |
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337 |
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338 | /**
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339 | * Get the ES register.
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340 | * @returns ES.
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341 | */
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342 | #if RT_INLINE_ASM_EXTERNAL
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343 | DECLASM(RTSEL) ASMGetES(void);
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344 | #else
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345 | DECLINLINE(RTSEL) ASMGetES(void)
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346 | {
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347 | RTSEL SelES;
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348 | # if RT_INLINE_ASM_GNU_STYLE
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349 | __asm__ __volatile__("movw %%es, %0\n\t" : "=r" (SelES));
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350 | # else
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351 | __asm
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352 | {
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353 | mov ax, es
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354 | mov [SelES], ax
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355 | }
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356 | # endif
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357 | return SelES;
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358 | }
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359 | #endif
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360 |
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361 |
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362 | /**
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363 | * Get the FS register.
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364 | * @returns FS.
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365 | */
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366 | #if RT_INLINE_ASM_EXTERNAL
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367 | DECLASM(RTSEL) ASMGetFS(void);
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368 | #else
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369 | DECLINLINE(RTSEL) ASMGetFS(void)
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370 | {
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371 | RTSEL SelFS;
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372 | # if RT_INLINE_ASM_GNU_STYLE
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373 | __asm__ __volatile__("movw %%fs, %0\n\t" : "=r" (SelFS));
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374 | # else
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375 | __asm
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376 | {
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377 | mov ax, fs
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378 | mov [SelFS], ax
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379 | }
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380 | # endif
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381 | return SelFS;
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382 | }
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383 | # endif
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384 |
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385 |
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386 | /**
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387 | * Get the GS register.
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388 | * @returns GS.
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389 | */
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390 | #if RT_INLINE_ASM_EXTERNAL
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391 | DECLASM(RTSEL) ASMGetGS(void);
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392 | #else
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393 | DECLINLINE(RTSEL) ASMGetGS(void)
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394 | {
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395 | RTSEL SelGS;
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396 | # if RT_INLINE_ASM_GNU_STYLE
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397 | __asm__ __volatile__("movw %%gs, %0\n\t" : "=r" (SelGS));
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398 | # else
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399 | __asm
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400 | {
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401 | mov ax, gs
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402 | mov [SelGS], ax
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403 | }
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404 | # endif
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405 | return SelGS;
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406 | }
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407 | #endif
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408 |
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409 |
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410 | /**
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411 | * Get the SS register.
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412 | * @returns SS.
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413 | */
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414 | #if RT_INLINE_ASM_EXTERNAL
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415 | DECLASM(RTSEL) ASMGetSS(void);
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416 | #else
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417 | DECLINLINE(RTSEL) ASMGetSS(void)
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418 | {
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419 | RTSEL SelSS;
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420 | # if RT_INLINE_ASM_GNU_STYLE
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421 | __asm__ __volatile__("movw %%ss, %0\n\t" : "=r" (SelSS));
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422 | # else
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423 | __asm
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424 | {
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425 | mov ax, ss
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426 | mov [SelSS], ax
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427 | }
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428 | # endif
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429 | return SelSS;
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430 | }
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431 | #endif
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432 |
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433 |
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434 | /**
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435 | * Get the TR register.
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436 | * @returns TR.
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437 | */
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438 | #if RT_INLINE_ASM_EXTERNAL
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439 | DECLASM(RTSEL) ASMGetTR(void);
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440 | #else
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441 | DECLINLINE(RTSEL) ASMGetTR(void)
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442 | {
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443 | RTSEL SelTR;
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444 | # if RT_INLINE_ASM_GNU_STYLE
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445 | __asm__ __volatile__("str %w0\n\t" : "=r" (SelTR));
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446 | # else
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447 | __asm
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448 | {
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449 | str ax
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450 | mov [SelTR], ax
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451 | }
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452 | # endif
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453 | return SelTR;
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454 | }
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455 | #endif
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456 |
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457 |
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458 | /**
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459 | * Get the LDTR register.
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460 | * @returns LDTR.
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461 | */
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462 | #if RT_INLINE_ASM_EXTERNAL
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463 | DECLASM(RTSEL) ASMGetLDTR(void);
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464 | #else
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465 | DECLINLINE(RTSEL) ASMGetLDTR(void)
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466 | {
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467 | RTSEL SelLDTR;
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468 | # if RT_INLINE_ASM_GNU_STYLE
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469 | __asm__ __volatile__("sldt %w0\n\t" : "=r" (SelLDTR));
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470 | # else
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471 | __asm
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472 | {
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473 | sldt ax
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474 | mov [SelLDTR], ax
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475 | }
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476 | # endif
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477 | return SelLDTR;
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478 | }
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479 | #endif
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480 |
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481 |
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482 | /**
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483 | * Get the access rights for the segment selector.
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484 | *
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485 | * @returns The access rights on success or UINT32_MAX on failure.
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486 | * @param uSel The selector value.
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487 | *
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488 | * @remarks Using UINT32_MAX for failure is chosen because valid access rights
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489 | * always have bits 0:7 as 0 (on both Intel & AMD).
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490 | */
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491 | #if RT_INLINE_ASM_EXTERNAL
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492 | DECLASM(uint32_t) ASMGetSegAttr(uint32_t uSel);
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493 | #else
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494 | DECLINLINE(uint32_t) ASMGetSegAttr(uint32_t uSel)
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495 | {
|
---|
496 | uint32_t uAttr;
|
---|
497 | /* LAR only accesses 16-bit of the source operand, but eax for the
|
---|
498 | destination operand is required for getting the full 32-bit access rights. */
|
---|
499 | # if RT_INLINE_ASM_GNU_STYLE
|
---|
500 | __asm__ __volatile__("lar %1, %%eax\n\t"
|
---|
501 | "jz done%=\n\t"
|
---|
502 | "movl $0xffffffff, %%eax\n\t"
|
---|
503 | "done%=:\n\t"
|
---|
504 | "movl %%eax, %0\n\t"
|
---|
505 | : "=r" (uAttr)
|
---|
506 | : "r" (uSel)
|
---|
507 | : "cc", "%eax");
|
---|
508 | # else
|
---|
509 | __asm
|
---|
510 | {
|
---|
511 | lar eax, [uSel]
|
---|
512 | jz done
|
---|
513 | mov eax, 0ffffffffh
|
---|
514 | done:
|
---|
515 | mov [uAttr], eax
|
---|
516 | }
|
---|
517 | # endif
|
---|
518 | return uAttr;
|
---|
519 | }
|
---|
520 | #endif
|
---|
521 |
|
---|
522 |
|
---|
523 | /**
|
---|
524 | * Get the [RE]FLAGS register.
|
---|
525 | * @returns [RE]FLAGS.
|
---|
526 | */
|
---|
527 | #if RT_INLINE_ASM_EXTERNAL && RT_INLINE_ASM_USES_INTRIN < 15
|
---|
528 | DECLASM(RTCCUINTREG) ASMGetFlags(void);
|
---|
529 | #else
|
---|
530 | DECLINLINE(RTCCUINTREG) ASMGetFlags(void)
|
---|
531 | {
|
---|
532 | RTCCUINTREG uFlags;
|
---|
533 | # if RT_INLINE_ASM_GNU_STYLE
|
---|
534 | # ifdef RT_ARCH_AMD64
|
---|
535 | __asm__ __volatile__("pushfq\n\t"
|
---|
536 | "popq %0\n\t"
|
---|
537 | : "=r" (uFlags));
|
---|
538 | # else
|
---|
539 | __asm__ __volatile__("pushfl\n\t"
|
---|
540 | "popl %0\n\t"
|
---|
541 | : "=r" (uFlags));
|
---|
542 | # endif
|
---|
543 | # elif RT_INLINE_ASM_USES_INTRIN >= 15
|
---|
544 | uFlags = __readeflags();
|
---|
545 | # else
|
---|
546 | __asm
|
---|
547 | {
|
---|
548 | # ifdef RT_ARCH_AMD64
|
---|
549 | pushfq
|
---|
550 | pop [uFlags]
|
---|
551 | # else
|
---|
552 | pushfd
|
---|
553 | pop [uFlags]
|
---|
554 | # endif
|
---|
555 | }
|
---|
556 | # endif
|
---|
557 | return uFlags;
|
---|
558 | }
|
---|
559 | #endif
|
---|
560 |
|
---|
561 |
|
---|
562 | /**
|
---|
563 | * Set the [RE]FLAGS register.
|
---|
564 | * @param uFlags The new [RE]FLAGS value.
|
---|
565 | */
|
---|
566 | #if RT_INLINE_ASM_EXTERNAL && RT_INLINE_ASM_USES_INTRIN < 15
|
---|
567 | DECLASM(void) ASMSetFlags(RTCCUINTREG uFlags);
|
---|
568 | #else
|
---|
569 | DECLINLINE(void) ASMSetFlags(RTCCUINTREG uFlags)
|
---|
570 | {
|
---|
571 | # if RT_INLINE_ASM_GNU_STYLE
|
---|
572 | # ifdef RT_ARCH_AMD64
|
---|
573 | __asm__ __volatile__("pushq %0\n\t"
|
---|
574 | "popfq\n\t"
|
---|
575 | : : "g" (uFlags));
|
---|
576 | # else
|
---|
577 | __asm__ __volatile__("pushl %0\n\t"
|
---|
578 | "popfl\n\t"
|
---|
579 | : : "g" (uFlags));
|
---|
580 | # endif
|
---|
581 | # elif RT_INLINE_ASM_USES_INTRIN >= 15
|
---|
582 | __writeeflags(uFlags);
|
---|
583 | # else
|
---|
584 | __asm
|
---|
585 | {
|
---|
586 | # ifdef RT_ARCH_AMD64
|
---|
587 | push [uFlags]
|
---|
588 | popfq
|
---|
589 | # else
|
---|
590 | push [uFlags]
|
---|
591 | popfd
|
---|
592 | # endif
|
---|
593 | }
|
---|
594 | # endif
|
---|
595 | }
|
---|
596 | #endif
|
---|
597 |
|
---|
598 |
|
---|
599 | /**
|
---|
600 | * Modifies the [RE]FLAGS register.
|
---|
601 | * @returns Original value.
|
---|
602 | * @param fAndEfl Flags to keep (applied first).
|
---|
603 | * @param fOrEfl Flags to be set.
|
---|
604 | */
|
---|
605 | #if RT_INLINE_ASM_EXTERNAL && RT_INLINE_ASM_USES_INTRIN < 15
|
---|
606 | DECLASM(RTCCUINTREG) ASMChangeFlags(RTCCUINTREG fAndEfl, RTCCUINTREG fOrEfl);
|
---|
607 | #else
|
---|
608 | DECLINLINE(RTCCUINTREG) ASMChangeFlags(RTCCUINTREG fAndEfl, RTCCUINTREG fOrEfl)
|
---|
609 | {
|
---|
610 | RTCCUINTREG fOldEfl;
|
---|
611 | # if RT_INLINE_ASM_GNU_STYLE
|
---|
612 | # ifdef RT_ARCH_AMD64
|
---|
613 | __asm__ __volatile__("pushfq\n\t"
|
---|
614 | "movq (%%rsp), %0\n\t"
|
---|
615 | "andq %0, %1\n\t"
|
---|
616 | "orq %3, %1\n\t"
|
---|
617 | "mov %1, (%%rsp)\n\t"
|
---|
618 | "popfq\n\t"
|
---|
619 | : "=r" (fOldEfl),
|
---|
620 | "=g" (fAndEfl)
|
---|
621 | : "1" (fAndEfl),
|
---|
622 | "g" (fOrEfl) );
|
---|
623 | # else
|
---|
624 | __asm__ __volatile__("pushfl\n\t"
|
---|
625 | "movl (%%esp), %0\n\t"
|
---|
626 | "andl %1, (%%esp)\n\t"
|
---|
627 | "orl %2, (%%esp)\n\t"
|
---|
628 | "popfl\n\t"
|
---|
629 | : "=r" (fOldEfl)
|
---|
630 | : "g" (fAndEfl),
|
---|
631 | "g" (fOrEfl) );
|
---|
632 | # endif
|
---|
633 | # elif RT_INLINE_ASM_USES_INTRIN >= 15
|
---|
634 | fOldEfl = __readeflags();
|
---|
635 | __writeeflags((fOldEfl & fAndEfl) | fOrEfl);
|
---|
636 | # else
|
---|
637 | __asm
|
---|
638 | {
|
---|
639 | # ifdef RT_ARCH_AMD64
|
---|
640 | mov rdx, [fAndEfl]
|
---|
641 | mov rcx, [fOrEfl]
|
---|
642 | pushfq
|
---|
643 | mov rax, [rsp]
|
---|
644 | and rdx, rax
|
---|
645 | or rdx, rcx
|
---|
646 | mov [rsp], rdx
|
---|
647 | popfq
|
---|
648 | mov [fOldEfl], rax
|
---|
649 | # else
|
---|
650 | mov edx, [fAndEfl]
|
---|
651 | mov ecx, [fOrEfl]
|
---|
652 | pushfd
|
---|
653 | mov eax, [esp]
|
---|
654 | and edx, eax
|
---|
655 | or edx, ecx
|
---|
656 | mov [esp], edx
|
---|
657 | popfd
|
---|
658 | mov [fOldEfl], eax
|
---|
659 | # endif
|
---|
660 | }
|
---|
661 | # endif
|
---|
662 | return fOldEfl;
|
---|
663 | }
|
---|
664 | #endif
|
---|
665 |
|
---|
666 |
|
---|
667 | /**
|
---|
668 | * Modifies the [RE]FLAGS register by ORing in one or more flags.
|
---|
669 | * @returns Original value.
|
---|
670 | * @param fOrEfl The flags to be set (ORed in).
|
---|
671 | */
|
---|
672 | #if RT_INLINE_ASM_EXTERNAL && RT_INLINE_ASM_USES_INTRIN < 15
|
---|
673 | DECLASM(RTCCUINTREG) ASMAddFlags(RTCCUINTREG fOrEfl);
|
---|
674 | #else
|
---|
675 | DECLINLINE(RTCCUINTREG) ASMAddFlags(RTCCUINTREG fOrEfl)
|
---|
676 | {
|
---|
677 | RTCCUINTREG fOldEfl;
|
---|
678 | # if RT_INLINE_ASM_GNU_STYLE
|
---|
679 | # ifdef RT_ARCH_AMD64
|
---|
680 | __asm__ __volatile__("pushfq\n\t"
|
---|
681 | "movq (%%rsp), %0\n\t"
|
---|
682 | "orq %1, (%%rsp)\n\t"
|
---|
683 | "popfq\n\t"
|
---|
684 | : "=r" (fOldEfl)
|
---|
685 | : "g" (fOrEfl) );
|
---|
686 | # else
|
---|
687 | __asm__ __volatile__("pushfl\n\t"
|
---|
688 | "movl (%%esp), %0\n\t"
|
---|
689 | "orl %1, (%%esp)\n\t"
|
---|
690 | "popfl\n\t"
|
---|
691 | : "=r" (fOldEfl)
|
---|
692 | : "g" (fOrEfl) );
|
---|
693 | # endif
|
---|
694 | # elif RT_INLINE_ASM_USES_INTRIN >= 15
|
---|
695 | fOldEfl = __readeflags();
|
---|
696 | __writeeflags(fOldEfl | fOrEfl);
|
---|
697 | # else
|
---|
698 | __asm
|
---|
699 | {
|
---|
700 | # ifdef RT_ARCH_AMD64
|
---|
701 | mov rcx, [fOrEfl]
|
---|
702 | pushfq
|
---|
703 | mov rdx, [rsp]
|
---|
704 | or [rsp], rcx
|
---|
705 | popfq
|
---|
706 | mov [fOldEfl], rax
|
---|
707 | # else
|
---|
708 | mov ecx, [fOrEfl]
|
---|
709 | pushfd
|
---|
710 | mov edx, [esp]
|
---|
711 | or [esp], ecx
|
---|
712 | popfd
|
---|
713 | mov [fOldEfl], eax
|
---|
714 | # endif
|
---|
715 | }
|
---|
716 | # endif
|
---|
717 | return fOldEfl;
|
---|
718 | }
|
---|
719 | #endif
|
---|
720 |
|
---|
721 |
|
---|
722 | /**
|
---|
723 | * Modifies the [RE]FLAGS register by AND'ing out one or more flags.
|
---|
724 | * @returns Original value.
|
---|
725 | * @param fAndEfl The flags to keep.
|
---|
726 | */
|
---|
727 | #if RT_INLINE_ASM_EXTERNAL && RT_INLINE_ASM_USES_INTRIN < 15
|
---|
728 | DECLASM(RTCCUINTREG) ASMClearFlags(RTCCUINTREG fAndEfl);
|
---|
729 | #else
|
---|
730 | DECLINLINE(RTCCUINTREG) ASMClearFlags(RTCCUINTREG fAndEfl)
|
---|
731 | {
|
---|
732 | RTCCUINTREG fOldEfl;
|
---|
733 | # if RT_INLINE_ASM_GNU_STYLE
|
---|
734 | # ifdef RT_ARCH_AMD64
|
---|
735 | __asm__ __volatile__("pushfq\n\t"
|
---|
736 | "movq (%%rsp), %0\n\t"
|
---|
737 | "andq %1, (%%rsp)\n\t"
|
---|
738 | "popfq\n\t"
|
---|
739 | : "=r" (fOldEfl)
|
---|
740 | : "g" (fAndEfl) );
|
---|
741 | # else
|
---|
742 | __asm__ __volatile__("pushfl\n\t"
|
---|
743 | "movl (%%esp), %0\n\t"
|
---|
744 | "andl %1, (%%esp)\n\t"
|
---|
745 | "popfl\n\t"
|
---|
746 | : "=r" (fOldEfl)
|
---|
747 | : "g" (fAndEfl) );
|
---|
748 | # endif
|
---|
749 | # elif RT_INLINE_ASM_USES_INTRIN >= 15
|
---|
750 | fOldEfl = __readeflags();
|
---|
751 | __writeeflags(fOldEfl & fAndEfl);
|
---|
752 | # else
|
---|
753 | __asm
|
---|
754 | {
|
---|
755 | # ifdef RT_ARCH_AMD64
|
---|
756 | mov rdx, [fAndEfl]
|
---|
757 | pushfq
|
---|
758 | mov rdx, [rsp]
|
---|
759 | and [rsp], rdx
|
---|
760 | popfq
|
---|
761 | mov [fOldEfl], rax
|
---|
762 | # else
|
---|
763 | mov edx, [fAndEfl]
|
---|
764 | pushfd
|
---|
765 | mov edx, [esp]
|
---|
766 | and [esp], edx
|
---|
767 | popfd
|
---|
768 | mov [fOldEfl], eax
|
---|
769 | # endif
|
---|
770 | }
|
---|
771 | # endif
|
---|
772 | return fOldEfl;
|
---|
773 | }
|
---|
774 | #endif
|
---|
775 |
|
---|
776 |
|
---|
777 | /**
|
---|
778 | * Gets the content of the CPU timestamp counter register.
|
---|
779 | *
|
---|
780 | * @returns TSC.
|
---|
781 | */
|
---|
782 | #if RT_INLINE_ASM_EXTERNAL && !RT_INLINE_ASM_USES_INTRIN
|
---|
783 | DECLASM(uint64_t) ASMReadTSC(void);
|
---|
784 | #else
|
---|
785 | DECLINLINE(uint64_t) ASMReadTSC(void)
|
---|
786 | {
|
---|
787 | RTUINT64U u;
|
---|
788 | # if RT_INLINE_ASM_GNU_STYLE
|
---|
789 | __asm__ __volatile__("rdtsc\n\t" : "=a" (u.s.Lo), "=d" (u.s.Hi));
|
---|
790 | # else
|
---|
791 | # if RT_INLINE_ASM_USES_INTRIN
|
---|
792 | u.u = __rdtsc();
|
---|
793 | # else
|
---|
794 | __asm
|
---|
795 | {
|
---|
796 | rdtsc
|
---|
797 | mov [u.s.Lo], eax
|
---|
798 | mov [u.s.Hi], edx
|
---|
799 | }
|
---|
800 | # endif
|
---|
801 | # endif
|
---|
802 | return u.u;
|
---|
803 | }
|
---|
804 | #endif
|
---|
805 |
|
---|
806 |
|
---|
807 | /**
|
---|
808 | * Gets the content of the CPU timestamp counter register and the
|
---|
809 | * assoicated AUX value.
|
---|
810 | *
|
---|
811 | * @returns TSC.
|
---|
812 | * @param puAux Where to store the AUX value.
|
---|
813 | */
|
---|
814 | #if RT_INLINE_ASM_EXTERNAL && RT_INLINE_ASM_USES_INTRIN < 15
|
---|
815 | DECLASM(uint64_t) ASMReadTscWithAux(uint32_t *puAux);
|
---|
816 | #else
|
---|
817 | DECLINLINE(uint64_t) ASMReadTscWithAux(uint32_t *puAux)
|
---|
818 | {
|
---|
819 | RTUINT64U u;
|
---|
820 | # if RT_INLINE_ASM_GNU_STYLE
|
---|
821 | /* rdtscp is not supported by ancient linux build VM of course :-( */
|
---|
822 | /*__asm__ __volatile__("rdtscp\n\t" : "=a" (u.s.Lo), "=d" (u.s.Hi), "=c" (*puAux)); */
|
---|
823 | __asm__ __volatile__(".byte 0x0f,0x01,0xf9\n\t" : "=a" (u.s.Lo), "=d" (u.s.Hi), "=c" (*puAux));
|
---|
824 | # else
|
---|
825 | # if RT_INLINE_ASM_USES_INTRIN >= 15
|
---|
826 | u.u = __rdtscp(puAux);
|
---|
827 | # else
|
---|
828 | __asm
|
---|
829 | {
|
---|
830 | rdtscp
|
---|
831 | mov [u.s.Lo], eax
|
---|
832 | mov [u.s.Hi], edx
|
---|
833 | mov eax, [puAux]
|
---|
834 | mov [eax], ecx
|
---|
835 | }
|
---|
836 | # endif
|
---|
837 | # endif
|
---|
838 | return u.u;
|
---|
839 | }
|
---|
840 | #endif
|
---|
841 |
|
---|
842 |
|
---|
843 | /**
|
---|
844 | * Performs the cpuid instruction returning all registers.
|
---|
845 | *
|
---|
846 | * @param uOperator CPUID operation (eax).
|
---|
847 | * @param pvEAX Where to store eax.
|
---|
848 | * @param pvEBX Where to store ebx.
|
---|
849 | * @param pvECX Where to store ecx.
|
---|
850 | * @param pvEDX Where to store edx.
|
---|
851 | * @remark We're using void pointers to ease the use of special bitfield structures and such.
|
---|
852 | */
|
---|
853 | #if RT_INLINE_ASM_EXTERNAL && !RT_INLINE_ASM_USES_INTRIN
|
---|
854 | DECLASM(void) ASMCpuId(uint32_t uOperator, void *pvEAX, void *pvEBX, void *pvECX, void *pvEDX);
|
---|
855 | #else
|
---|
856 | DECLINLINE(void) ASMCpuId(uint32_t uOperator, void *pvEAX, void *pvEBX, void *pvECX, void *pvEDX)
|
---|
857 | {
|
---|
858 | # if RT_INLINE_ASM_GNU_STYLE
|
---|
859 | # ifdef RT_ARCH_AMD64
|
---|
860 | RTCCUINTREG uRAX, uRBX, uRCX, uRDX;
|
---|
861 | __asm__ __volatile__ ("cpuid\n\t"
|
---|
862 | : "=a" (uRAX),
|
---|
863 | "=b" (uRBX),
|
---|
864 | "=c" (uRCX),
|
---|
865 | "=d" (uRDX)
|
---|
866 | : "0" (uOperator), "2" (0));
|
---|
867 | *(uint32_t *)pvEAX = (uint32_t)uRAX;
|
---|
868 | *(uint32_t *)pvEBX = (uint32_t)uRBX;
|
---|
869 | *(uint32_t *)pvECX = (uint32_t)uRCX;
|
---|
870 | *(uint32_t *)pvEDX = (uint32_t)uRDX;
|
---|
871 | # else
|
---|
872 | __asm__ __volatile__ ("xchgl %%ebx, %1\n\t"
|
---|
873 | "cpuid\n\t"
|
---|
874 | "xchgl %%ebx, %1\n\t"
|
---|
875 | : "=a" (*(uint32_t *)pvEAX),
|
---|
876 | "=r" (*(uint32_t *)pvEBX),
|
---|
877 | "=c" (*(uint32_t *)pvECX),
|
---|
878 | "=d" (*(uint32_t *)pvEDX)
|
---|
879 | : "0" (uOperator), "2" (0));
|
---|
880 | # endif
|
---|
881 |
|
---|
882 | # elif RT_INLINE_ASM_USES_INTRIN
|
---|
883 | int aInfo[4];
|
---|
884 | __cpuid(aInfo, uOperator);
|
---|
885 | *(uint32_t *)pvEAX = aInfo[0];
|
---|
886 | *(uint32_t *)pvEBX = aInfo[1];
|
---|
887 | *(uint32_t *)pvECX = aInfo[2];
|
---|
888 | *(uint32_t *)pvEDX = aInfo[3];
|
---|
889 |
|
---|
890 | # else
|
---|
891 | uint32_t uEAX;
|
---|
892 | uint32_t uEBX;
|
---|
893 | uint32_t uECX;
|
---|
894 | uint32_t uEDX;
|
---|
895 | __asm
|
---|
896 | {
|
---|
897 | push ebx
|
---|
898 | mov eax, [uOperator]
|
---|
899 | cpuid
|
---|
900 | mov [uEAX], eax
|
---|
901 | mov [uEBX], ebx
|
---|
902 | mov [uECX], ecx
|
---|
903 | mov [uEDX], edx
|
---|
904 | pop ebx
|
---|
905 | }
|
---|
906 | *(uint32_t *)pvEAX = uEAX;
|
---|
907 | *(uint32_t *)pvEBX = uEBX;
|
---|
908 | *(uint32_t *)pvECX = uECX;
|
---|
909 | *(uint32_t *)pvEDX = uEDX;
|
---|
910 | # endif
|
---|
911 | }
|
---|
912 | #endif
|
---|
913 |
|
---|
914 |
|
---|
915 | /**
|
---|
916 | * Performs the CPUID instruction with EAX and ECX input returning ALL output
|
---|
917 | * registers.
|
---|
918 | *
|
---|
919 | * @param uOperator CPUID operation (eax).
|
---|
920 | * @param uIdxECX ecx index
|
---|
921 | * @param pvEAX Where to store eax.
|
---|
922 | * @param pvEBX Where to store ebx.
|
---|
923 | * @param pvECX Where to store ecx.
|
---|
924 | * @param pvEDX Where to store edx.
|
---|
925 | * @remark We're using void pointers to ease the use of special bitfield structures and such.
|
---|
926 | */
|
---|
927 | #if RT_INLINE_ASM_EXTERNAL || RT_INLINE_ASM_USES_INTRIN
|
---|
928 | DECLASM(void) ASMCpuId_Idx_ECX(uint32_t uOperator, uint32_t uIdxECX, void *pvEAX, void *pvEBX, void *pvECX, void *pvEDX);
|
---|
929 | #else
|
---|
930 | DECLINLINE(void) ASMCpuId_Idx_ECX(uint32_t uOperator, uint32_t uIdxECX, void *pvEAX, void *pvEBX, void *pvECX, void *pvEDX)
|
---|
931 | {
|
---|
932 | # if RT_INLINE_ASM_GNU_STYLE
|
---|
933 | # ifdef RT_ARCH_AMD64
|
---|
934 | RTCCUINTREG uRAX, uRBX, uRCX, uRDX;
|
---|
935 | __asm__ ("cpuid\n\t"
|
---|
936 | : "=a" (uRAX),
|
---|
937 | "=b" (uRBX),
|
---|
938 | "=c" (uRCX),
|
---|
939 | "=d" (uRDX)
|
---|
940 | : "0" (uOperator),
|
---|
941 | "2" (uIdxECX));
|
---|
942 | *(uint32_t *)pvEAX = (uint32_t)uRAX;
|
---|
943 | *(uint32_t *)pvEBX = (uint32_t)uRBX;
|
---|
944 | *(uint32_t *)pvECX = (uint32_t)uRCX;
|
---|
945 | *(uint32_t *)pvEDX = (uint32_t)uRDX;
|
---|
946 | # else
|
---|
947 | __asm__ ("xchgl %%ebx, %1\n\t"
|
---|
948 | "cpuid\n\t"
|
---|
949 | "xchgl %%ebx, %1\n\t"
|
---|
950 | : "=a" (*(uint32_t *)pvEAX),
|
---|
951 | "=r" (*(uint32_t *)pvEBX),
|
---|
952 | "=c" (*(uint32_t *)pvECX),
|
---|
953 | "=d" (*(uint32_t *)pvEDX)
|
---|
954 | : "0" (uOperator),
|
---|
955 | "2" (uIdxECX));
|
---|
956 | # endif
|
---|
957 |
|
---|
958 | # elif RT_INLINE_ASM_USES_INTRIN
|
---|
959 | int aInfo[4];
|
---|
960 | __cpuidex(aInfo, uOperator, uIdxECX);
|
---|
961 | *(uint32_t *)pvEAX = aInfo[0];
|
---|
962 | *(uint32_t *)pvEBX = aInfo[1];
|
---|
963 | *(uint32_t *)pvECX = aInfo[2];
|
---|
964 | *(uint32_t *)pvEDX = aInfo[3];
|
---|
965 |
|
---|
966 | # else
|
---|
967 | uint32_t uEAX;
|
---|
968 | uint32_t uEBX;
|
---|
969 | uint32_t uECX;
|
---|
970 | uint32_t uEDX;
|
---|
971 | __asm
|
---|
972 | {
|
---|
973 | push ebx
|
---|
974 | mov eax, [uOperator]
|
---|
975 | mov ecx, [uIdxECX]
|
---|
976 | cpuid
|
---|
977 | mov [uEAX], eax
|
---|
978 | mov [uEBX], ebx
|
---|
979 | mov [uECX], ecx
|
---|
980 | mov [uEDX], edx
|
---|
981 | pop ebx
|
---|
982 | }
|
---|
983 | *(uint32_t *)pvEAX = uEAX;
|
---|
984 | *(uint32_t *)pvEBX = uEBX;
|
---|
985 | *(uint32_t *)pvECX = uECX;
|
---|
986 | *(uint32_t *)pvEDX = uEDX;
|
---|
987 | # endif
|
---|
988 | }
|
---|
989 | #endif
|
---|
990 |
|
---|
991 |
|
---|
992 | /**
|
---|
993 | * CPUID variant that initializes all 4 registers before the CPUID instruction.
|
---|
994 | *
|
---|
995 | * @returns The EAX result value.
|
---|
996 | * @param uOperator CPUID operation (eax).
|
---|
997 | * @param uInitEBX The value to assign EBX prior to the CPUID instruction.
|
---|
998 | * @param uInitECX The value to assign ECX prior to the CPUID instruction.
|
---|
999 | * @param uInitEDX The value to assign EDX prior to the CPUID instruction.
|
---|
1000 | * @param pvEAX Where to store eax. Optional.
|
---|
1001 | * @param pvEBX Where to store ebx. Optional.
|
---|
1002 | * @param pvECX Where to store ecx. Optional.
|
---|
1003 | * @param pvEDX Where to store edx. Optional.
|
---|
1004 | */
|
---|
1005 | DECLASM(uint32_t) ASMCpuIdExSlow(uint32_t uOperator, uint32_t uInitEBX, uint32_t uInitECX, uint32_t uInitEDX,
|
---|
1006 | void *pvEAX, void *pvEBX, void *pvECX, void *pvEDX);
|
---|
1007 |
|
---|
1008 |
|
---|
1009 | /**
|
---|
1010 | * Performs the cpuid instruction returning ecx and edx.
|
---|
1011 | *
|
---|
1012 | * @param uOperator CPUID operation (eax).
|
---|
1013 | * @param pvECX Where to store ecx.
|
---|
1014 | * @param pvEDX Where to store edx.
|
---|
1015 | * @remark We're using void pointers to ease the use of special bitfield structures and such.
|
---|
1016 | */
|
---|
1017 | #if RT_INLINE_ASM_EXTERNAL && !RT_INLINE_ASM_USES_INTRIN
|
---|
1018 | DECLASM(void) ASMCpuId_ECX_EDX(uint32_t uOperator, void *pvECX, void *pvEDX);
|
---|
1019 | #else
|
---|
1020 | DECLINLINE(void) ASMCpuId_ECX_EDX(uint32_t uOperator, void *pvECX, void *pvEDX)
|
---|
1021 | {
|
---|
1022 | uint32_t uEBX;
|
---|
1023 | ASMCpuId(uOperator, &uOperator, &uEBX, pvECX, pvEDX);
|
---|
1024 | }
|
---|
1025 | #endif
|
---|
1026 |
|
---|
1027 |
|
---|
1028 | /**
|
---|
1029 | * Performs the cpuid instruction returning eax.
|
---|
1030 | *
|
---|
1031 | * @param uOperator CPUID operation (eax).
|
---|
1032 | * @returns EAX after cpuid operation.
|
---|
1033 | */
|
---|
1034 | #if RT_INLINE_ASM_EXTERNAL && !RT_INLINE_ASM_USES_INTRIN
|
---|
1035 | DECLASM(uint32_t) ASMCpuId_EAX(uint32_t uOperator);
|
---|
1036 | #else
|
---|
1037 | DECLINLINE(uint32_t) ASMCpuId_EAX(uint32_t uOperator)
|
---|
1038 | {
|
---|
1039 | RTCCUINTREG xAX;
|
---|
1040 | # if RT_INLINE_ASM_GNU_STYLE
|
---|
1041 | # ifdef RT_ARCH_AMD64
|
---|
1042 | __asm__ ("cpuid"
|
---|
1043 | : "=a" (xAX)
|
---|
1044 | : "0" (uOperator)
|
---|
1045 | : "rbx", "rcx", "rdx");
|
---|
1046 | # elif (defined(PIC) || defined(__PIC__)) && defined(__i386__)
|
---|
1047 | __asm__ ("push %%ebx\n\t"
|
---|
1048 | "cpuid\n\t"
|
---|
1049 | "pop %%ebx\n\t"
|
---|
1050 | : "=a" (xAX)
|
---|
1051 | : "0" (uOperator)
|
---|
1052 | : "ecx", "edx");
|
---|
1053 | # else
|
---|
1054 | __asm__ ("cpuid"
|
---|
1055 | : "=a" (xAX)
|
---|
1056 | : "0" (uOperator)
|
---|
1057 | : "edx", "ecx", "ebx");
|
---|
1058 | # endif
|
---|
1059 |
|
---|
1060 | # elif RT_INLINE_ASM_USES_INTRIN
|
---|
1061 | int aInfo[4];
|
---|
1062 | __cpuid(aInfo, uOperator);
|
---|
1063 | xAX = aInfo[0];
|
---|
1064 |
|
---|
1065 | # else
|
---|
1066 | __asm
|
---|
1067 | {
|
---|
1068 | push ebx
|
---|
1069 | mov eax, [uOperator]
|
---|
1070 | cpuid
|
---|
1071 | mov [xAX], eax
|
---|
1072 | pop ebx
|
---|
1073 | }
|
---|
1074 | # endif
|
---|
1075 | return (uint32_t)xAX;
|
---|
1076 | }
|
---|
1077 | #endif
|
---|
1078 |
|
---|
1079 |
|
---|
1080 | /**
|
---|
1081 | * Performs the cpuid instruction returning ebx.
|
---|
1082 | *
|
---|
1083 | * @param uOperator CPUID operation (eax).
|
---|
1084 | * @returns EBX after cpuid operation.
|
---|
1085 | */
|
---|
1086 | #if RT_INLINE_ASM_EXTERNAL && !RT_INLINE_ASM_USES_INTRIN
|
---|
1087 | DECLASM(uint32_t) ASMCpuId_EBX(uint32_t uOperator);
|
---|
1088 | #else
|
---|
1089 | DECLINLINE(uint32_t) ASMCpuId_EBX(uint32_t uOperator)
|
---|
1090 | {
|
---|
1091 | RTCCUINTREG xBX;
|
---|
1092 | # if RT_INLINE_ASM_GNU_STYLE
|
---|
1093 | # ifdef RT_ARCH_AMD64
|
---|
1094 | RTCCUINTREG uSpill;
|
---|
1095 | __asm__ ("cpuid"
|
---|
1096 | : "=a" (uSpill),
|
---|
1097 | "=b" (xBX)
|
---|
1098 | : "0" (uOperator)
|
---|
1099 | : "rdx", "rcx");
|
---|
1100 | # elif (defined(PIC) || defined(__PIC__)) && defined(__i386__)
|
---|
1101 | __asm__ ("push %%ebx\n\t"
|
---|
1102 | "cpuid\n\t"
|
---|
1103 | "mov %%ebx, %%edx\n\t"
|
---|
1104 | "pop %%ebx\n\t"
|
---|
1105 | : "=a" (uOperator),
|
---|
1106 | "=d" (xBX)
|
---|
1107 | : "0" (uOperator)
|
---|
1108 | : "ecx");
|
---|
1109 | # else
|
---|
1110 | __asm__ ("cpuid"
|
---|
1111 | : "=a" (uOperator),
|
---|
1112 | "=b" (xBX)
|
---|
1113 | : "0" (uOperator)
|
---|
1114 | : "edx", "ecx");
|
---|
1115 | # endif
|
---|
1116 |
|
---|
1117 | # elif RT_INLINE_ASM_USES_INTRIN
|
---|
1118 | int aInfo[4];
|
---|
1119 | __cpuid(aInfo, uOperator);
|
---|
1120 | xBX = aInfo[1];
|
---|
1121 |
|
---|
1122 | # else
|
---|
1123 | __asm
|
---|
1124 | {
|
---|
1125 | push ebx
|
---|
1126 | mov eax, [uOperator]
|
---|
1127 | cpuid
|
---|
1128 | mov [xBX], ebx
|
---|
1129 | pop ebx
|
---|
1130 | }
|
---|
1131 | # endif
|
---|
1132 | return (uint32_t)xBX;
|
---|
1133 | }
|
---|
1134 | #endif
|
---|
1135 |
|
---|
1136 |
|
---|
1137 | /**
|
---|
1138 | * Performs the cpuid instruction returning ecx.
|
---|
1139 | *
|
---|
1140 | * @param uOperator CPUID operation (eax).
|
---|
1141 | * @returns ECX after cpuid operation.
|
---|
1142 | */
|
---|
1143 | #if RT_INLINE_ASM_EXTERNAL && !RT_INLINE_ASM_USES_INTRIN
|
---|
1144 | DECLASM(uint32_t) ASMCpuId_ECX(uint32_t uOperator);
|
---|
1145 | #else
|
---|
1146 | DECLINLINE(uint32_t) ASMCpuId_ECX(uint32_t uOperator)
|
---|
1147 | {
|
---|
1148 | RTCCUINTREG xCX;
|
---|
1149 | # if RT_INLINE_ASM_GNU_STYLE
|
---|
1150 | # ifdef RT_ARCH_AMD64
|
---|
1151 | RTCCUINTREG uSpill;
|
---|
1152 | __asm__ ("cpuid"
|
---|
1153 | : "=a" (uSpill),
|
---|
1154 | "=c" (xCX)
|
---|
1155 | : "0" (uOperator)
|
---|
1156 | : "rbx", "rdx");
|
---|
1157 | # elif (defined(PIC) || defined(__PIC__)) && defined(__i386__)
|
---|
1158 | __asm__ ("push %%ebx\n\t"
|
---|
1159 | "cpuid\n\t"
|
---|
1160 | "pop %%ebx\n\t"
|
---|
1161 | : "=a" (uOperator),
|
---|
1162 | "=c" (xCX)
|
---|
1163 | : "0" (uOperator)
|
---|
1164 | : "edx");
|
---|
1165 | # else
|
---|
1166 | __asm__ ("cpuid"
|
---|
1167 | : "=a" (uOperator),
|
---|
1168 | "=c" (xCX)
|
---|
1169 | : "0" (uOperator)
|
---|
1170 | : "ebx", "edx");
|
---|
1171 |
|
---|
1172 | # endif
|
---|
1173 |
|
---|
1174 | # elif RT_INLINE_ASM_USES_INTRIN
|
---|
1175 | int aInfo[4];
|
---|
1176 | __cpuid(aInfo, uOperator);
|
---|
1177 | xCX = aInfo[2];
|
---|
1178 |
|
---|
1179 | # else
|
---|
1180 | __asm
|
---|
1181 | {
|
---|
1182 | push ebx
|
---|
1183 | mov eax, [uOperator]
|
---|
1184 | cpuid
|
---|
1185 | mov [xCX], ecx
|
---|
1186 | pop ebx
|
---|
1187 | }
|
---|
1188 | # endif
|
---|
1189 | return (uint32_t)xCX;
|
---|
1190 | }
|
---|
1191 | #endif
|
---|
1192 |
|
---|
1193 |
|
---|
1194 | /**
|
---|
1195 | * Performs the cpuid instruction returning edx.
|
---|
1196 | *
|
---|
1197 | * @param uOperator CPUID operation (eax).
|
---|
1198 | * @returns EDX after cpuid operation.
|
---|
1199 | */
|
---|
1200 | #if RT_INLINE_ASM_EXTERNAL && !RT_INLINE_ASM_USES_INTRIN
|
---|
1201 | DECLASM(uint32_t) ASMCpuId_EDX(uint32_t uOperator);
|
---|
1202 | #else
|
---|
1203 | DECLINLINE(uint32_t) ASMCpuId_EDX(uint32_t uOperator)
|
---|
1204 | {
|
---|
1205 | RTCCUINTREG xDX;
|
---|
1206 | # if RT_INLINE_ASM_GNU_STYLE
|
---|
1207 | # ifdef RT_ARCH_AMD64
|
---|
1208 | RTCCUINTREG uSpill;
|
---|
1209 | __asm__ ("cpuid"
|
---|
1210 | : "=a" (uSpill),
|
---|
1211 | "=d" (xDX)
|
---|
1212 | : "0" (uOperator)
|
---|
1213 | : "rbx", "rcx");
|
---|
1214 | # elif (defined(PIC) || defined(__PIC__)) && defined(__i386__)
|
---|
1215 | __asm__ ("push %%ebx\n\t"
|
---|
1216 | "cpuid\n\t"
|
---|
1217 | "pop %%ebx\n\t"
|
---|
1218 | : "=a" (uOperator),
|
---|
1219 | "=d" (xDX)
|
---|
1220 | : "0" (uOperator)
|
---|
1221 | : "ecx");
|
---|
1222 | # else
|
---|
1223 | __asm__ ("cpuid"
|
---|
1224 | : "=a" (uOperator),
|
---|
1225 | "=d" (xDX)
|
---|
1226 | : "0" (uOperator)
|
---|
1227 | : "ebx", "ecx");
|
---|
1228 | # endif
|
---|
1229 |
|
---|
1230 | # elif RT_INLINE_ASM_USES_INTRIN
|
---|
1231 | int aInfo[4];
|
---|
1232 | __cpuid(aInfo, uOperator);
|
---|
1233 | xDX = aInfo[3];
|
---|
1234 |
|
---|
1235 | # else
|
---|
1236 | __asm
|
---|
1237 | {
|
---|
1238 | push ebx
|
---|
1239 | mov eax, [uOperator]
|
---|
1240 | cpuid
|
---|
1241 | mov [xDX], edx
|
---|
1242 | pop ebx
|
---|
1243 | }
|
---|
1244 | # endif
|
---|
1245 | return (uint32_t)xDX;
|
---|
1246 | }
|
---|
1247 | #endif
|
---|
1248 |
|
---|
1249 |
|
---|
1250 | /**
|
---|
1251 | * Checks if the current CPU supports CPUID.
|
---|
1252 | *
|
---|
1253 | * @returns true if CPUID is supported.
|
---|
1254 | */
|
---|
1255 | DECLINLINE(bool) ASMHasCpuId(void)
|
---|
1256 | {
|
---|
1257 | #ifdef RT_ARCH_AMD64
|
---|
1258 | return true; /* ASSUME that all amd64 compatible CPUs have cpuid. */
|
---|
1259 | #else /* !RT_ARCH_AMD64 */
|
---|
1260 | bool fRet = false;
|
---|
1261 | # if RT_INLINE_ASM_GNU_STYLE
|
---|
1262 | uint32_t u1;
|
---|
1263 | uint32_t u2;
|
---|
1264 | __asm__ ("pushf\n\t"
|
---|
1265 | "pop %1\n\t"
|
---|
1266 | "mov %1, %2\n\t"
|
---|
1267 | "xorl $0x200000, %1\n\t"
|
---|
1268 | "push %1\n\t"
|
---|
1269 | "popf\n\t"
|
---|
1270 | "pushf\n\t"
|
---|
1271 | "pop %1\n\t"
|
---|
1272 | "cmpl %1, %2\n\t"
|
---|
1273 | "setne %0\n\t"
|
---|
1274 | "push %2\n\t"
|
---|
1275 | "popf\n\t"
|
---|
1276 | : "=m" (fRet), "=r" (u1), "=r" (u2));
|
---|
1277 | # else
|
---|
1278 | __asm
|
---|
1279 | {
|
---|
1280 | pushfd
|
---|
1281 | pop eax
|
---|
1282 | mov ebx, eax
|
---|
1283 | xor eax, 0200000h
|
---|
1284 | push eax
|
---|
1285 | popfd
|
---|
1286 | pushfd
|
---|
1287 | pop eax
|
---|
1288 | cmp eax, ebx
|
---|
1289 | setne fRet
|
---|
1290 | push ebx
|
---|
1291 | popfd
|
---|
1292 | }
|
---|
1293 | # endif
|
---|
1294 | return fRet;
|
---|
1295 | #endif /* !RT_ARCH_AMD64 */
|
---|
1296 | }
|
---|
1297 |
|
---|
1298 |
|
---|
1299 | /**
|
---|
1300 | * Gets the APIC ID of the current CPU.
|
---|
1301 | *
|
---|
1302 | * @returns the APIC ID.
|
---|
1303 | */
|
---|
1304 | #if RT_INLINE_ASM_EXTERNAL && !RT_INLINE_ASM_USES_INTRIN
|
---|
1305 | DECLASM(uint8_t) ASMGetApicId(void);
|
---|
1306 | #else
|
---|
1307 | DECLINLINE(uint8_t) ASMGetApicId(void)
|
---|
1308 | {
|
---|
1309 | RTCCUINTREG xBX;
|
---|
1310 | # if RT_INLINE_ASM_GNU_STYLE
|
---|
1311 | # ifdef RT_ARCH_AMD64
|
---|
1312 | RTCCUINTREG uSpill;
|
---|
1313 | __asm__ __volatile__ ("cpuid"
|
---|
1314 | : "=a" (uSpill),
|
---|
1315 | "=b" (xBX)
|
---|
1316 | : "0" (1)
|
---|
1317 | : "rcx", "rdx");
|
---|
1318 | # elif (defined(PIC) || defined(__PIC__)) && defined(__i386__)
|
---|
1319 | RTCCUINTREG uSpill;
|
---|
1320 | __asm__ __volatile__ ("mov %%ebx,%1\n\t"
|
---|
1321 | "cpuid\n\t"
|
---|
1322 | "xchgl %%ebx,%1\n\t"
|
---|
1323 | : "=a" (uSpill),
|
---|
1324 | "=rm" (xBX)
|
---|
1325 | : "0" (1)
|
---|
1326 | : "ecx", "edx");
|
---|
1327 | # else
|
---|
1328 | RTCCUINTREG uSpill;
|
---|
1329 | __asm__ __volatile__ ("cpuid"
|
---|
1330 | : "=a" (uSpill),
|
---|
1331 | "=b" (xBX)
|
---|
1332 | : "0" (1)
|
---|
1333 | : "ecx", "edx");
|
---|
1334 | # endif
|
---|
1335 |
|
---|
1336 | # elif RT_INLINE_ASM_USES_INTRIN
|
---|
1337 | int aInfo[4];
|
---|
1338 | __cpuid(aInfo, 1);
|
---|
1339 | xBX = aInfo[1];
|
---|
1340 |
|
---|
1341 | # else
|
---|
1342 | __asm
|
---|
1343 | {
|
---|
1344 | push ebx
|
---|
1345 | mov eax, 1
|
---|
1346 | cpuid
|
---|
1347 | mov [xBX], ebx
|
---|
1348 | pop ebx
|
---|
1349 | }
|
---|
1350 | # endif
|
---|
1351 | return (uint8_t)(xBX >> 24);
|
---|
1352 | }
|
---|
1353 | #endif
|
---|
1354 |
|
---|
1355 |
|
---|
1356 | /**
|
---|
1357 | * Tests if it a genuine Intel CPU based on the ASMCpuId(0) output.
|
---|
1358 | *
|
---|
1359 | * @returns true/false.
|
---|
1360 | * @param uEBX EBX return from ASMCpuId(0)
|
---|
1361 | * @param uECX ECX return from ASMCpuId(0)
|
---|
1362 | * @param uEDX EDX return from ASMCpuId(0)
|
---|
1363 | */
|
---|
1364 | DECLINLINE(bool) ASMIsIntelCpuEx(uint32_t uEBX, uint32_t uECX, uint32_t uEDX)
|
---|
1365 | {
|
---|
1366 | return uEBX == UINT32_C(0x756e6547)
|
---|
1367 | && uECX == UINT32_C(0x6c65746e)
|
---|
1368 | && uEDX == UINT32_C(0x49656e69);
|
---|
1369 | }
|
---|
1370 |
|
---|
1371 |
|
---|
1372 | /**
|
---|
1373 | * Tests if this is a genuine Intel CPU.
|
---|
1374 | *
|
---|
1375 | * @returns true/false.
|
---|
1376 | * @remarks ASSUMES that cpuid is supported by the CPU.
|
---|
1377 | */
|
---|
1378 | DECLINLINE(bool) ASMIsIntelCpu(void)
|
---|
1379 | {
|
---|
1380 | uint32_t uEAX, uEBX, uECX, uEDX;
|
---|
1381 | ASMCpuId(0, &uEAX, &uEBX, &uECX, &uEDX);
|
---|
1382 | return ASMIsIntelCpuEx(uEBX, uECX, uEDX);
|
---|
1383 | }
|
---|
1384 |
|
---|
1385 |
|
---|
1386 | /**
|
---|
1387 | * Tests if it an authentic AMD CPU based on the ASMCpuId(0) output.
|
---|
1388 | *
|
---|
1389 | * @returns true/false.
|
---|
1390 | * @param uEBX EBX return from ASMCpuId(0)
|
---|
1391 | * @param uECX ECX return from ASMCpuId(0)
|
---|
1392 | * @param uEDX EDX return from ASMCpuId(0)
|
---|
1393 | */
|
---|
1394 | DECLINLINE(bool) ASMIsAmdCpuEx(uint32_t uEBX, uint32_t uECX, uint32_t uEDX)
|
---|
1395 | {
|
---|
1396 | return uEBX == UINT32_C(0x68747541)
|
---|
1397 | && uECX == UINT32_C(0x444d4163)
|
---|
1398 | && uEDX == UINT32_C(0x69746e65);
|
---|
1399 | }
|
---|
1400 |
|
---|
1401 |
|
---|
1402 | /**
|
---|
1403 | * Tests if this is an authentic AMD CPU.
|
---|
1404 | *
|
---|
1405 | * @returns true/false.
|
---|
1406 | * @remarks ASSUMES that cpuid is supported by the CPU.
|
---|
1407 | */
|
---|
1408 | DECLINLINE(bool) ASMIsAmdCpu(void)
|
---|
1409 | {
|
---|
1410 | uint32_t uEAX, uEBX, uECX, uEDX;
|
---|
1411 | ASMCpuId(0, &uEAX, &uEBX, &uECX, &uEDX);
|
---|
1412 | return ASMIsAmdCpuEx(uEBX, uECX, uEDX);
|
---|
1413 | }
|
---|
1414 |
|
---|
1415 |
|
---|
1416 | /**
|
---|
1417 | * Tests if it a centaur hauling VIA CPU based on the ASMCpuId(0) output.
|
---|
1418 | *
|
---|
1419 | * @returns true/false.
|
---|
1420 | * @param uEBX EBX return from ASMCpuId(0).
|
---|
1421 | * @param uECX ECX return from ASMCpuId(0).
|
---|
1422 | * @param uEDX EDX return from ASMCpuId(0).
|
---|
1423 | */
|
---|
1424 | DECLINLINE(bool) ASMIsViaCentaurCpuEx(uint32_t uEBX, uint32_t uECX, uint32_t uEDX)
|
---|
1425 | {
|
---|
1426 | return uEBX == UINT32_C(0x746e6543)
|
---|
1427 | && uECX == UINT32_C(0x736c7561)
|
---|
1428 | && uEDX == UINT32_C(0x48727561);
|
---|
1429 | }
|
---|
1430 |
|
---|
1431 |
|
---|
1432 | /**
|
---|
1433 | * Tests if this is a centaur hauling VIA CPU.
|
---|
1434 | *
|
---|
1435 | * @returns true/false.
|
---|
1436 | * @remarks ASSUMES that cpuid is supported by the CPU.
|
---|
1437 | */
|
---|
1438 | DECLINLINE(bool) ASMIsViaCentaurCpu(void)
|
---|
1439 | {
|
---|
1440 | uint32_t uEAX, uEBX, uECX, uEDX;
|
---|
1441 | ASMCpuId(0, &uEAX, &uEBX, &uECX, &uEDX);
|
---|
1442 | return ASMIsAmdCpuEx(uEBX, uECX, uEDX);
|
---|
1443 | }
|
---|
1444 |
|
---|
1445 |
|
---|
1446 | /**
|
---|
1447 | * Checks whether ASMCpuId_EAX(0x00000000) indicates a valid range.
|
---|
1448 | *
|
---|
1449 | *
|
---|
1450 | * @returns true/false.
|
---|
1451 | * @param uEAX The EAX value of CPUID leaf 0x00000000.
|
---|
1452 | *
|
---|
1453 | * @note This only succeeds if there are at least two leaves in the range.
|
---|
1454 | * @remarks The upper range limit is just some half reasonable value we've
|
---|
1455 | * picked out of thin air.
|
---|
1456 | */
|
---|
1457 | DECLINLINE(bool) ASMIsValidStdRange(uint32_t uEAX)
|
---|
1458 | {
|
---|
1459 | return uEAX >= UINT32_C(0x00000001) && uEAX <= UINT32_C(0x000fffff);
|
---|
1460 | }
|
---|
1461 |
|
---|
1462 |
|
---|
1463 | /**
|
---|
1464 | * Checks whether ASMCpuId_EAX(0x80000000) indicates a valid range.
|
---|
1465 | *
|
---|
1466 | * This only succeeds if there are at least two leaves in the range.
|
---|
1467 | *
|
---|
1468 | * @returns true/false.
|
---|
1469 | * @param uEAX The EAX value of CPUID leaf 0x80000000.
|
---|
1470 | *
|
---|
1471 | * @note This only succeeds if there are at least two leaves in the range.
|
---|
1472 | * @remarks The upper range limit is just some half reasonable value we've
|
---|
1473 | * picked out of thin air.
|
---|
1474 | */
|
---|
1475 | DECLINLINE(bool) ASMIsValidExtRange(uint32_t uEAX)
|
---|
1476 | {
|
---|
1477 | return uEAX >= UINT32_C(0x80000001) && uEAX <= UINT32_C(0x800fffff);
|
---|
1478 | }
|
---|
1479 |
|
---|
1480 |
|
---|
1481 | /**
|
---|
1482 | * Extracts the CPU family from ASMCpuId(1) or ASMCpuId(0x80000001)
|
---|
1483 | *
|
---|
1484 | * @returns Family.
|
---|
1485 | * @param uEAX EAX return from ASMCpuId(1) or ASMCpuId(0x80000001).
|
---|
1486 | */
|
---|
1487 | DECLINLINE(uint32_t) ASMGetCpuFamily(uint32_t uEAX)
|
---|
1488 | {
|
---|
1489 | return ((uEAX >> 8) & 0xf) == 0xf
|
---|
1490 | ? ((uEAX >> 20) & 0x7f) + 0xf
|
---|
1491 | : ((uEAX >> 8) & 0xf);
|
---|
1492 | }
|
---|
1493 |
|
---|
1494 |
|
---|
1495 | /**
|
---|
1496 | * Extracts the CPU model from ASMCpuId(1) or ASMCpuId(0x80000001), Intel variant.
|
---|
1497 | *
|
---|
1498 | * @returns Model.
|
---|
1499 | * @param uEAX EAX from ASMCpuId(1) or ASMCpuId(0x80000001).
|
---|
1500 | */
|
---|
1501 | DECLINLINE(uint32_t) ASMGetCpuModelIntel(uint32_t uEAX)
|
---|
1502 | {
|
---|
1503 | return ((uEAX >> 8) & 0xf) == 0xf || (((uEAX >> 8) & 0xf) == 0x6) /* family! */
|
---|
1504 | ? ((uEAX >> 4) & 0xf) | ((uEAX >> 12) & 0xf0)
|
---|
1505 | : ((uEAX >> 4) & 0xf);
|
---|
1506 | }
|
---|
1507 |
|
---|
1508 |
|
---|
1509 | /**
|
---|
1510 | * Extracts the CPU model from ASMCpuId(1) or ASMCpuId(0x80000001), AMD variant.
|
---|
1511 | *
|
---|
1512 | * @returns Model.
|
---|
1513 | * @param uEAX EAX from ASMCpuId(1) or ASMCpuId(0x80000001).
|
---|
1514 | */
|
---|
1515 | DECLINLINE(uint32_t) ASMGetCpuModelAMD(uint32_t uEAX)
|
---|
1516 | {
|
---|
1517 | return ((uEAX >> 8) & 0xf) == 0xf
|
---|
1518 | ? ((uEAX >> 4) & 0xf) | ((uEAX >> 12) & 0xf0)
|
---|
1519 | : ((uEAX >> 4) & 0xf);
|
---|
1520 | }
|
---|
1521 |
|
---|
1522 |
|
---|
1523 | /**
|
---|
1524 | * Extracts the CPU model from ASMCpuId(1) or ASMCpuId(0x80000001)
|
---|
1525 | *
|
---|
1526 | * @returns Model.
|
---|
1527 | * @param uEAX EAX from ASMCpuId(1) or ASMCpuId(0x80000001).
|
---|
1528 | * @param fIntel Whether it's an intel CPU. Use ASMIsIntelCpuEx() or ASMIsIntelCpu().
|
---|
1529 | */
|
---|
1530 | DECLINLINE(uint32_t) ASMGetCpuModel(uint32_t uEAX, bool fIntel)
|
---|
1531 | {
|
---|
1532 | return ((uEAX >> 8) & 0xf) == 0xf || (((uEAX >> 8) & 0xf) == 0x6 && fIntel) /* family! */
|
---|
1533 | ? ((uEAX >> 4) & 0xf) | ((uEAX >> 12) & 0xf0)
|
---|
1534 | : ((uEAX >> 4) & 0xf);
|
---|
1535 | }
|
---|
1536 |
|
---|
1537 |
|
---|
1538 | /**
|
---|
1539 | * Extracts the CPU stepping from ASMCpuId(1) or ASMCpuId(0x80000001)
|
---|
1540 | *
|
---|
1541 | * @returns Model.
|
---|
1542 | * @param uEAX EAX from ASMCpuId(1) or ASMCpuId(0x80000001).
|
---|
1543 | */
|
---|
1544 | DECLINLINE(uint32_t) ASMGetCpuStepping(uint32_t uEAX)
|
---|
1545 | {
|
---|
1546 | return uEAX & 0xf;
|
---|
1547 | }
|
---|
1548 |
|
---|
1549 |
|
---|
1550 | /**
|
---|
1551 | * Get cr0.
|
---|
1552 | * @returns cr0.
|
---|
1553 | */
|
---|
1554 | #if RT_INLINE_ASM_EXTERNAL && !RT_INLINE_ASM_USES_INTRIN
|
---|
1555 | DECLASM(RTCCUINTREG) ASMGetCR0(void);
|
---|
1556 | #else
|
---|
1557 | DECLINLINE(RTCCUINTREG) ASMGetCR0(void)
|
---|
1558 | {
|
---|
1559 | RTCCUINTREG uCR0;
|
---|
1560 | # if RT_INLINE_ASM_USES_INTRIN
|
---|
1561 | uCR0 = __readcr0();
|
---|
1562 |
|
---|
1563 | # elif RT_INLINE_ASM_GNU_STYLE
|
---|
1564 | # ifdef RT_ARCH_AMD64
|
---|
1565 | __asm__ __volatile__("movq %%cr0, %0\t\n" : "=r" (uCR0));
|
---|
1566 | # else
|
---|
1567 | __asm__ __volatile__("movl %%cr0, %0\t\n" : "=r" (uCR0));
|
---|
1568 | # endif
|
---|
1569 | # else
|
---|
1570 | __asm
|
---|
1571 | {
|
---|
1572 | # ifdef RT_ARCH_AMD64
|
---|
1573 | mov rax, cr0
|
---|
1574 | mov [uCR0], rax
|
---|
1575 | # else
|
---|
1576 | mov eax, cr0
|
---|
1577 | mov [uCR0], eax
|
---|
1578 | # endif
|
---|
1579 | }
|
---|
1580 | # endif
|
---|
1581 | return uCR0;
|
---|
1582 | }
|
---|
1583 | #endif
|
---|
1584 |
|
---|
1585 |
|
---|
1586 | /**
|
---|
1587 | * Sets the CR0 register.
|
---|
1588 | * @param uCR0 The new CR0 value.
|
---|
1589 | */
|
---|
1590 | #if RT_INLINE_ASM_EXTERNAL && !RT_INLINE_ASM_USES_INTRIN
|
---|
1591 | DECLASM(void) ASMSetCR0(RTCCUINTREG uCR0);
|
---|
1592 | #else
|
---|
1593 | DECLINLINE(void) ASMSetCR0(RTCCUINTREG uCR0)
|
---|
1594 | {
|
---|
1595 | # if RT_INLINE_ASM_USES_INTRIN
|
---|
1596 | __writecr0(uCR0);
|
---|
1597 |
|
---|
1598 | # elif RT_INLINE_ASM_GNU_STYLE
|
---|
1599 | # ifdef RT_ARCH_AMD64
|
---|
1600 | __asm__ __volatile__("movq %0, %%cr0\n\t" :: "r" (uCR0));
|
---|
1601 | # else
|
---|
1602 | __asm__ __volatile__("movl %0, %%cr0\n\t" :: "r" (uCR0));
|
---|
1603 | # endif
|
---|
1604 | # else
|
---|
1605 | __asm
|
---|
1606 | {
|
---|
1607 | # ifdef RT_ARCH_AMD64
|
---|
1608 | mov rax, [uCR0]
|
---|
1609 | mov cr0, rax
|
---|
1610 | # else
|
---|
1611 | mov eax, [uCR0]
|
---|
1612 | mov cr0, eax
|
---|
1613 | # endif
|
---|
1614 | }
|
---|
1615 | # endif
|
---|
1616 | }
|
---|
1617 | #endif
|
---|
1618 |
|
---|
1619 |
|
---|
1620 | /**
|
---|
1621 | * Get cr2.
|
---|
1622 | * @returns cr2.
|
---|
1623 | */
|
---|
1624 | #if RT_INLINE_ASM_EXTERNAL && !RT_INLINE_ASM_USES_INTRIN
|
---|
1625 | DECLASM(RTCCUINTREG) ASMGetCR2(void);
|
---|
1626 | #else
|
---|
1627 | DECLINLINE(RTCCUINTREG) ASMGetCR2(void)
|
---|
1628 | {
|
---|
1629 | RTCCUINTREG uCR2;
|
---|
1630 | # if RT_INLINE_ASM_USES_INTRIN
|
---|
1631 | uCR2 = __readcr2();
|
---|
1632 |
|
---|
1633 | # elif RT_INLINE_ASM_GNU_STYLE
|
---|
1634 | # ifdef RT_ARCH_AMD64
|
---|
1635 | __asm__ __volatile__("movq %%cr2, %0\t\n" : "=r" (uCR2));
|
---|
1636 | # else
|
---|
1637 | __asm__ __volatile__("movl %%cr2, %0\t\n" : "=r" (uCR2));
|
---|
1638 | # endif
|
---|
1639 | # else
|
---|
1640 | __asm
|
---|
1641 | {
|
---|
1642 | # ifdef RT_ARCH_AMD64
|
---|
1643 | mov rax, cr2
|
---|
1644 | mov [uCR2], rax
|
---|
1645 | # else
|
---|
1646 | mov eax, cr2
|
---|
1647 | mov [uCR2], eax
|
---|
1648 | # endif
|
---|
1649 | }
|
---|
1650 | # endif
|
---|
1651 | return uCR2;
|
---|
1652 | }
|
---|
1653 | #endif
|
---|
1654 |
|
---|
1655 |
|
---|
1656 | /**
|
---|
1657 | * Sets the CR2 register.
|
---|
1658 | * @param uCR2 The new CR0 value.
|
---|
1659 | */
|
---|
1660 | #if RT_INLINE_ASM_EXTERNAL
|
---|
1661 | DECLASM(void) ASMSetCR2(RTCCUINTREG uCR2);
|
---|
1662 | #else
|
---|
1663 | DECLINLINE(void) ASMSetCR2(RTCCUINTREG uCR2)
|
---|
1664 | {
|
---|
1665 | # if RT_INLINE_ASM_GNU_STYLE
|
---|
1666 | # ifdef RT_ARCH_AMD64
|
---|
1667 | __asm__ __volatile__("movq %0, %%cr2\n\t" :: "r" (uCR2));
|
---|
1668 | # else
|
---|
1669 | __asm__ __volatile__("movl %0, %%cr2\n\t" :: "r" (uCR2));
|
---|
1670 | # endif
|
---|
1671 | # else
|
---|
1672 | __asm
|
---|
1673 | {
|
---|
1674 | # ifdef RT_ARCH_AMD64
|
---|
1675 | mov rax, [uCR2]
|
---|
1676 | mov cr2, rax
|
---|
1677 | # else
|
---|
1678 | mov eax, [uCR2]
|
---|
1679 | mov cr2, eax
|
---|
1680 | # endif
|
---|
1681 | }
|
---|
1682 | # endif
|
---|
1683 | }
|
---|
1684 | #endif
|
---|
1685 |
|
---|
1686 |
|
---|
1687 | /**
|
---|
1688 | * Get cr3.
|
---|
1689 | * @returns cr3.
|
---|
1690 | */
|
---|
1691 | #if RT_INLINE_ASM_EXTERNAL && !RT_INLINE_ASM_USES_INTRIN
|
---|
1692 | DECLASM(RTCCUINTREG) ASMGetCR3(void);
|
---|
1693 | #else
|
---|
1694 | DECLINLINE(RTCCUINTREG) ASMGetCR3(void)
|
---|
1695 | {
|
---|
1696 | RTCCUINTREG uCR3;
|
---|
1697 | # if RT_INLINE_ASM_USES_INTRIN
|
---|
1698 | uCR3 = __readcr3();
|
---|
1699 |
|
---|
1700 | # elif RT_INLINE_ASM_GNU_STYLE
|
---|
1701 | # ifdef RT_ARCH_AMD64
|
---|
1702 | __asm__ __volatile__("movq %%cr3, %0\t\n" : "=r" (uCR3));
|
---|
1703 | # else
|
---|
1704 | __asm__ __volatile__("movl %%cr3, %0\t\n" : "=r" (uCR3));
|
---|
1705 | # endif
|
---|
1706 | # else
|
---|
1707 | __asm
|
---|
1708 | {
|
---|
1709 | # ifdef RT_ARCH_AMD64
|
---|
1710 | mov rax, cr3
|
---|
1711 | mov [uCR3], rax
|
---|
1712 | # else
|
---|
1713 | mov eax, cr3
|
---|
1714 | mov [uCR3], eax
|
---|
1715 | # endif
|
---|
1716 | }
|
---|
1717 | # endif
|
---|
1718 | return uCR3;
|
---|
1719 | }
|
---|
1720 | #endif
|
---|
1721 |
|
---|
1722 |
|
---|
1723 | /**
|
---|
1724 | * Sets the CR3 register.
|
---|
1725 | *
|
---|
1726 | * @param uCR3 New CR3 value.
|
---|
1727 | */
|
---|
1728 | #if RT_INLINE_ASM_EXTERNAL && !RT_INLINE_ASM_USES_INTRIN
|
---|
1729 | DECLASM(void) ASMSetCR3(RTCCUINTREG uCR3);
|
---|
1730 | #else
|
---|
1731 | DECLINLINE(void) ASMSetCR3(RTCCUINTREG uCR3)
|
---|
1732 | {
|
---|
1733 | # if RT_INLINE_ASM_USES_INTRIN
|
---|
1734 | __writecr3(uCR3);
|
---|
1735 |
|
---|
1736 | # elif RT_INLINE_ASM_GNU_STYLE
|
---|
1737 | # ifdef RT_ARCH_AMD64
|
---|
1738 | __asm__ __volatile__("movq %0, %%cr3\n\t" : : "r" (uCR3));
|
---|
1739 | # else
|
---|
1740 | __asm__ __volatile__("movl %0, %%cr3\n\t" : : "r" (uCR3));
|
---|
1741 | # endif
|
---|
1742 | # else
|
---|
1743 | __asm
|
---|
1744 | {
|
---|
1745 | # ifdef RT_ARCH_AMD64
|
---|
1746 | mov rax, [uCR3]
|
---|
1747 | mov cr3, rax
|
---|
1748 | # else
|
---|
1749 | mov eax, [uCR3]
|
---|
1750 | mov cr3, eax
|
---|
1751 | # endif
|
---|
1752 | }
|
---|
1753 | # endif
|
---|
1754 | }
|
---|
1755 | #endif
|
---|
1756 |
|
---|
1757 |
|
---|
1758 | /**
|
---|
1759 | * Reloads the CR3 register.
|
---|
1760 | */
|
---|
1761 | #if RT_INLINE_ASM_EXTERNAL && !RT_INLINE_ASM_USES_INTRIN
|
---|
1762 | DECLASM(void) ASMReloadCR3(void);
|
---|
1763 | #else
|
---|
1764 | DECLINLINE(void) ASMReloadCR3(void)
|
---|
1765 | {
|
---|
1766 | # if RT_INLINE_ASM_USES_INTRIN
|
---|
1767 | __writecr3(__readcr3());
|
---|
1768 |
|
---|
1769 | # elif RT_INLINE_ASM_GNU_STYLE
|
---|
1770 | RTCCUINTREG u;
|
---|
1771 | # ifdef RT_ARCH_AMD64
|
---|
1772 | __asm__ __volatile__("movq %%cr3, %0\n\t"
|
---|
1773 | "movq %0, %%cr3\n\t"
|
---|
1774 | : "=r" (u));
|
---|
1775 | # else
|
---|
1776 | __asm__ __volatile__("movl %%cr3, %0\n\t"
|
---|
1777 | "movl %0, %%cr3\n\t"
|
---|
1778 | : "=r" (u));
|
---|
1779 | # endif
|
---|
1780 | # else
|
---|
1781 | __asm
|
---|
1782 | {
|
---|
1783 | # ifdef RT_ARCH_AMD64
|
---|
1784 | mov rax, cr3
|
---|
1785 | mov cr3, rax
|
---|
1786 | # else
|
---|
1787 | mov eax, cr3
|
---|
1788 | mov cr3, eax
|
---|
1789 | # endif
|
---|
1790 | }
|
---|
1791 | # endif
|
---|
1792 | }
|
---|
1793 | #endif
|
---|
1794 |
|
---|
1795 |
|
---|
1796 | /**
|
---|
1797 | * Get cr4.
|
---|
1798 | * @returns cr4.
|
---|
1799 | */
|
---|
1800 | #if RT_INLINE_ASM_EXTERNAL && !RT_INLINE_ASM_USES_INTRIN
|
---|
1801 | DECLASM(RTCCUINTREG) ASMGetCR4(void);
|
---|
1802 | #else
|
---|
1803 | DECLINLINE(RTCCUINTREG) ASMGetCR4(void)
|
---|
1804 | {
|
---|
1805 | RTCCUINTREG uCR4;
|
---|
1806 | # if RT_INLINE_ASM_USES_INTRIN
|
---|
1807 | uCR4 = __readcr4();
|
---|
1808 |
|
---|
1809 | # elif RT_INLINE_ASM_GNU_STYLE
|
---|
1810 | # ifdef RT_ARCH_AMD64
|
---|
1811 | __asm__ __volatile__("movq %%cr4, %0\t\n" : "=r" (uCR4));
|
---|
1812 | # else
|
---|
1813 | __asm__ __volatile__("movl %%cr4, %0\t\n" : "=r" (uCR4));
|
---|
1814 | # endif
|
---|
1815 | # else
|
---|
1816 | __asm
|
---|
1817 | {
|
---|
1818 | # ifdef RT_ARCH_AMD64
|
---|
1819 | mov rax, cr4
|
---|
1820 | mov [uCR4], rax
|
---|
1821 | # else
|
---|
1822 | push eax /* just in case */
|
---|
1823 | /*mov eax, cr4*/
|
---|
1824 | _emit 0x0f
|
---|
1825 | _emit 0x20
|
---|
1826 | _emit 0xe0
|
---|
1827 | mov [uCR4], eax
|
---|
1828 | pop eax
|
---|
1829 | # endif
|
---|
1830 | }
|
---|
1831 | # endif
|
---|
1832 | return uCR4;
|
---|
1833 | }
|
---|
1834 | #endif
|
---|
1835 |
|
---|
1836 |
|
---|
1837 | /**
|
---|
1838 | * Sets the CR4 register.
|
---|
1839 | *
|
---|
1840 | * @param uCR4 New CR4 value.
|
---|
1841 | */
|
---|
1842 | #if RT_INLINE_ASM_EXTERNAL && !RT_INLINE_ASM_USES_INTRIN
|
---|
1843 | DECLASM(void) ASMSetCR4(RTCCUINTREG uCR4);
|
---|
1844 | #else
|
---|
1845 | DECLINLINE(void) ASMSetCR4(RTCCUINTREG uCR4)
|
---|
1846 | {
|
---|
1847 | # if RT_INLINE_ASM_USES_INTRIN
|
---|
1848 | __writecr4(uCR4);
|
---|
1849 |
|
---|
1850 | # elif RT_INLINE_ASM_GNU_STYLE
|
---|
1851 | # ifdef RT_ARCH_AMD64
|
---|
1852 | __asm__ __volatile__("movq %0, %%cr4\n\t" : : "r" (uCR4));
|
---|
1853 | # else
|
---|
1854 | __asm__ __volatile__("movl %0, %%cr4\n\t" : : "r" (uCR4));
|
---|
1855 | # endif
|
---|
1856 | # else
|
---|
1857 | __asm
|
---|
1858 | {
|
---|
1859 | # ifdef RT_ARCH_AMD64
|
---|
1860 | mov rax, [uCR4]
|
---|
1861 | mov cr4, rax
|
---|
1862 | # else
|
---|
1863 | mov eax, [uCR4]
|
---|
1864 | _emit 0x0F
|
---|
1865 | _emit 0x22
|
---|
1866 | _emit 0xE0 /* mov cr4, eax */
|
---|
1867 | # endif
|
---|
1868 | }
|
---|
1869 | # endif
|
---|
1870 | }
|
---|
1871 | #endif
|
---|
1872 |
|
---|
1873 |
|
---|
1874 | /**
|
---|
1875 | * Get cr8.
|
---|
1876 | * @returns cr8.
|
---|
1877 | * @remark The lock prefix hack for access from non-64-bit modes is NOT used and 0 is returned.
|
---|
1878 | */
|
---|
1879 | #if RT_INLINE_ASM_EXTERNAL && !RT_INLINE_ASM_USES_INTRIN
|
---|
1880 | DECLASM(RTCCUINTREG) ASMGetCR8(void);
|
---|
1881 | #else
|
---|
1882 | DECLINLINE(RTCCUINTREG) ASMGetCR8(void)
|
---|
1883 | {
|
---|
1884 | # ifdef RT_ARCH_AMD64
|
---|
1885 | RTCCUINTREG uCR8;
|
---|
1886 | # if RT_INLINE_ASM_USES_INTRIN
|
---|
1887 | uCR8 = __readcr8();
|
---|
1888 |
|
---|
1889 | # elif RT_INLINE_ASM_GNU_STYLE
|
---|
1890 | __asm__ __volatile__("movq %%cr8, %0\t\n" : "=r" (uCR8));
|
---|
1891 | # else
|
---|
1892 | __asm
|
---|
1893 | {
|
---|
1894 | mov rax, cr8
|
---|
1895 | mov [uCR8], rax
|
---|
1896 | }
|
---|
1897 | # endif
|
---|
1898 | return uCR8;
|
---|
1899 | # else /* !RT_ARCH_AMD64 */
|
---|
1900 | return 0;
|
---|
1901 | # endif /* !RT_ARCH_AMD64 */
|
---|
1902 | }
|
---|
1903 | #endif
|
---|
1904 |
|
---|
1905 |
|
---|
1906 | /**
|
---|
1907 | * Get XCR0 (eXtended feature Control Register 0).
|
---|
1908 | * @returns xcr0.
|
---|
1909 | */
|
---|
1910 | DECLASM(uint64_t) ASMGetXcr0(void);
|
---|
1911 |
|
---|
1912 | /**
|
---|
1913 | * Sets the XCR0 register.
|
---|
1914 | * @param uXcr0 The new XCR0 value.
|
---|
1915 | */
|
---|
1916 | DECLASM(void) ASMSetXcr0(uint64_t uXcr0);
|
---|
1917 |
|
---|
1918 | struct X86XSAVEAREA;
|
---|
1919 | /**
|
---|
1920 | * Save extended CPU state.
|
---|
1921 | * @param pXStateArea Where to save the state.
|
---|
1922 | * @param fComponents Which state components to save.
|
---|
1923 | */
|
---|
1924 | DECLASM(void) ASMXSave(struct X86XSAVEAREA *pXStateArea, uint64_t fComponents);
|
---|
1925 |
|
---|
1926 | /**
|
---|
1927 | * Loads extended CPU state.
|
---|
1928 | * @param pXStateArea Where to load the state from.
|
---|
1929 | * @param fComponents Which state components to load.
|
---|
1930 | */
|
---|
1931 | DECLASM(void) ASMXRstor(struct X86XSAVEAREA const *pXStateArea, uint64_t fComponents);
|
---|
1932 |
|
---|
1933 |
|
---|
1934 | /**
|
---|
1935 | * Enables interrupts (EFLAGS.IF).
|
---|
1936 | */
|
---|
1937 | #if RT_INLINE_ASM_EXTERNAL && !RT_INLINE_ASM_USES_INTRIN
|
---|
1938 | DECLASM(void) ASMIntEnable(void);
|
---|
1939 | #else
|
---|
1940 | DECLINLINE(void) ASMIntEnable(void)
|
---|
1941 | {
|
---|
1942 | # if RT_INLINE_ASM_GNU_STYLE
|
---|
1943 | __asm("sti\n");
|
---|
1944 | # elif RT_INLINE_ASM_USES_INTRIN
|
---|
1945 | _enable();
|
---|
1946 | # else
|
---|
1947 | __asm sti
|
---|
1948 | # endif
|
---|
1949 | }
|
---|
1950 | #endif
|
---|
1951 |
|
---|
1952 |
|
---|
1953 | /**
|
---|
1954 | * Disables interrupts (!EFLAGS.IF).
|
---|
1955 | */
|
---|
1956 | #if RT_INLINE_ASM_EXTERNAL && !RT_INLINE_ASM_USES_INTRIN
|
---|
1957 | DECLASM(void) ASMIntDisable(void);
|
---|
1958 | #else
|
---|
1959 | DECLINLINE(void) ASMIntDisable(void)
|
---|
1960 | {
|
---|
1961 | # if RT_INLINE_ASM_GNU_STYLE
|
---|
1962 | __asm("cli\n");
|
---|
1963 | # elif RT_INLINE_ASM_USES_INTRIN
|
---|
1964 | _disable();
|
---|
1965 | # else
|
---|
1966 | __asm cli
|
---|
1967 | # endif
|
---|
1968 | }
|
---|
1969 | #endif
|
---|
1970 |
|
---|
1971 |
|
---|
1972 | /**
|
---|
1973 | * Disables interrupts and returns previous xFLAGS.
|
---|
1974 | */
|
---|
1975 | #if RT_INLINE_ASM_EXTERNAL && !RT_INLINE_ASM_USES_INTRIN
|
---|
1976 | DECLASM(RTCCUINTREG) ASMIntDisableFlags(void);
|
---|
1977 | #else
|
---|
1978 | DECLINLINE(RTCCUINTREG) ASMIntDisableFlags(void)
|
---|
1979 | {
|
---|
1980 | RTCCUINTREG xFlags;
|
---|
1981 | # if RT_INLINE_ASM_GNU_STYLE
|
---|
1982 | # ifdef RT_ARCH_AMD64
|
---|
1983 | __asm__ __volatile__("pushfq\n\t"
|
---|
1984 | "cli\n\t"
|
---|
1985 | "popq %0\n\t"
|
---|
1986 | : "=r" (xFlags));
|
---|
1987 | # else
|
---|
1988 | __asm__ __volatile__("pushfl\n\t"
|
---|
1989 | "cli\n\t"
|
---|
1990 | "popl %0\n\t"
|
---|
1991 | : "=r" (xFlags));
|
---|
1992 | # endif
|
---|
1993 | # elif RT_INLINE_ASM_USES_INTRIN && !defined(RT_ARCH_X86)
|
---|
1994 | xFlags = ASMGetFlags();
|
---|
1995 | _disable();
|
---|
1996 | # else
|
---|
1997 | __asm {
|
---|
1998 | pushfd
|
---|
1999 | cli
|
---|
2000 | pop [xFlags]
|
---|
2001 | }
|
---|
2002 | # endif
|
---|
2003 | return xFlags;
|
---|
2004 | }
|
---|
2005 | #endif
|
---|
2006 |
|
---|
2007 |
|
---|
2008 | /**
|
---|
2009 | * Are interrupts enabled?
|
---|
2010 | *
|
---|
2011 | * @returns true / false.
|
---|
2012 | */
|
---|
2013 | DECLINLINE(bool) ASMIntAreEnabled(void)
|
---|
2014 | {
|
---|
2015 | RTCCUINTREG uFlags = ASMGetFlags();
|
---|
2016 | return uFlags & 0x200 /* X86_EFL_IF */ ? true : false;
|
---|
2017 | }
|
---|
2018 |
|
---|
2019 |
|
---|
2020 | /**
|
---|
2021 | * Halts the CPU until interrupted.
|
---|
2022 | */
|
---|
2023 | #if RT_INLINE_ASM_EXTERNAL
|
---|
2024 | DECLASM(void) ASMHalt(void);
|
---|
2025 | #else
|
---|
2026 | DECLINLINE(void) ASMHalt(void)
|
---|
2027 | {
|
---|
2028 | # if RT_INLINE_ASM_GNU_STYLE
|
---|
2029 | __asm__ __volatile__("hlt\n\t");
|
---|
2030 | # else
|
---|
2031 | __asm {
|
---|
2032 | hlt
|
---|
2033 | }
|
---|
2034 | # endif
|
---|
2035 | }
|
---|
2036 | #endif
|
---|
2037 |
|
---|
2038 |
|
---|
2039 | /**
|
---|
2040 | * Reads a machine specific register.
|
---|
2041 | *
|
---|
2042 | * @returns Register content.
|
---|
2043 | * @param uRegister Register to read.
|
---|
2044 | */
|
---|
2045 | #if RT_INLINE_ASM_EXTERNAL && !RT_INLINE_ASM_USES_INTRIN
|
---|
2046 | DECLASM(uint64_t) ASMRdMsr(uint32_t uRegister);
|
---|
2047 | #else
|
---|
2048 | DECLINLINE(uint64_t) ASMRdMsr(uint32_t uRegister)
|
---|
2049 | {
|
---|
2050 | RTUINT64U u;
|
---|
2051 | # if RT_INLINE_ASM_GNU_STYLE
|
---|
2052 | __asm__ __volatile__("rdmsr\n\t"
|
---|
2053 | : "=a" (u.s.Lo),
|
---|
2054 | "=d" (u.s.Hi)
|
---|
2055 | : "c" (uRegister));
|
---|
2056 |
|
---|
2057 | # elif RT_INLINE_ASM_USES_INTRIN
|
---|
2058 | u.u = __readmsr(uRegister);
|
---|
2059 |
|
---|
2060 | # else
|
---|
2061 | __asm
|
---|
2062 | {
|
---|
2063 | mov ecx, [uRegister]
|
---|
2064 | rdmsr
|
---|
2065 | mov [u.s.Lo], eax
|
---|
2066 | mov [u.s.Hi], edx
|
---|
2067 | }
|
---|
2068 | # endif
|
---|
2069 |
|
---|
2070 | return u.u;
|
---|
2071 | }
|
---|
2072 | #endif
|
---|
2073 |
|
---|
2074 |
|
---|
2075 | /**
|
---|
2076 | * Writes a machine specific register.
|
---|
2077 | *
|
---|
2078 | * @returns Register content.
|
---|
2079 | * @param uRegister Register to write to.
|
---|
2080 | * @param u64Val Value to write.
|
---|
2081 | */
|
---|
2082 | #if RT_INLINE_ASM_EXTERNAL && !RT_INLINE_ASM_USES_INTRIN
|
---|
2083 | DECLASM(void) ASMWrMsr(uint32_t uRegister, uint64_t u64Val);
|
---|
2084 | #else
|
---|
2085 | DECLINLINE(void) ASMWrMsr(uint32_t uRegister, uint64_t u64Val)
|
---|
2086 | {
|
---|
2087 | RTUINT64U u;
|
---|
2088 |
|
---|
2089 | u.u = u64Val;
|
---|
2090 | # if RT_INLINE_ASM_GNU_STYLE
|
---|
2091 | __asm__ __volatile__("wrmsr\n\t"
|
---|
2092 | ::"a" (u.s.Lo),
|
---|
2093 | "d" (u.s.Hi),
|
---|
2094 | "c" (uRegister));
|
---|
2095 |
|
---|
2096 | # elif RT_INLINE_ASM_USES_INTRIN
|
---|
2097 | __writemsr(uRegister, u.u);
|
---|
2098 |
|
---|
2099 | # else
|
---|
2100 | __asm
|
---|
2101 | {
|
---|
2102 | mov ecx, [uRegister]
|
---|
2103 | mov edx, [u.s.Hi]
|
---|
2104 | mov eax, [u.s.Lo]
|
---|
2105 | wrmsr
|
---|
2106 | }
|
---|
2107 | # endif
|
---|
2108 | }
|
---|
2109 | #endif
|
---|
2110 |
|
---|
2111 |
|
---|
2112 | /**
|
---|
2113 | * Reads a machine specific register, extended version (for AMD).
|
---|
2114 | *
|
---|
2115 | * @returns Register content.
|
---|
2116 | * @param uRegister Register to read.
|
---|
2117 | * @param uXDI RDI/EDI value.
|
---|
2118 | */
|
---|
2119 | #if RT_INLINE_ASM_EXTERNAL
|
---|
2120 | DECLASM(uint64_t) ASMRdMsrEx(uint32_t uRegister, RTCCUINTREG uXDI);
|
---|
2121 | #else
|
---|
2122 | DECLINLINE(uint64_t) ASMRdMsrEx(uint32_t uRegister, RTCCUINTREG uXDI)
|
---|
2123 | {
|
---|
2124 | RTUINT64U u;
|
---|
2125 | # if RT_INLINE_ASM_GNU_STYLE
|
---|
2126 | __asm__ __volatile__("rdmsr\n\t"
|
---|
2127 | : "=a" (u.s.Lo),
|
---|
2128 | "=d" (u.s.Hi)
|
---|
2129 | : "c" (uRegister),
|
---|
2130 | "D" (uXDI));
|
---|
2131 |
|
---|
2132 | # else
|
---|
2133 | __asm
|
---|
2134 | {
|
---|
2135 | mov ecx, [uRegister]
|
---|
2136 | xchg edi, [uXDI]
|
---|
2137 | rdmsr
|
---|
2138 | mov [u.s.Lo], eax
|
---|
2139 | mov [u.s.Hi], edx
|
---|
2140 | xchg edi, [uXDI]
|
---|
2141 | }
|
---|
2142 | # endif
|
---|
2143 |
|
---|
2144 | return u.u;
|
---|
2145 | }
|
---|
2146 | #endif
|
---|
2147 |
|
---|
2148 |
|
---|
2149 | /**
|
---|
2150 | * Writes a machine specific register, extended version (for AMD).
|
---|
2151 | *
|
---|
2152 | * @returns Register content.
|
---|
2153 | * @param uRegister Register to write to.
|
---|
2154 | * @param uXDI RDI/EDI value.
|
---|
2155 | * @param u64Val Value to write.
|
---|
2156 | */
|
---|
2157 | #if RT_INLINE_ASM_EXTERNAL
|
---|
2158 | DECLASM(void) ASMWrMsrEx(uint32_t uRegister, RTCCUINTREG uXDI, uint64_t u64Val);
|
---|
2159 | #else
|
---|
2160 | DECLINLINE(void) ASMWrMsrEx(uint32_t uRegister, RTCCUINTREG uXDI, uint64_t u64Val)
|
---|
2161 | {
|
---|
2162 | RTUINT64U u;
|
---|
2163 |
|
---|
2164 | u.u = u64Val;
|
---|
2165 | # if RT_INLINE_ASM_GNU_STYLE
|
---|
2166 | __asm__ __volatile__("wrmsr\n\t"
|
---|
2167 | ::"a" (u.s.Lo),
|
---|
2168 | "d" (u.s.Hi),
|
---|
2169 | "c" (uRegister),
|
---|
2170 | "D" (uXDI));
|
---|
2171 |
|
---|
2172 | # else
|
---|
2173 | __asm
|
---|
2174 | {
|
---|
2175 | mov ecx, [uRegister]
|
---|
2176 | xchg edi, [uXDI]
|
---|
2177 | mov edx, [u.s.Hi]
|
---|
2178 | mov eax, [u.s.Lo]
|
---|
2179 | wrmsr
|
---|
2180 | xchg edi, [uXDI]
|
---|
2181 | }
|
---|
2182 | # endif
|
---|
2183 | }
|
---|
2184 | #endif
|
---|
2185 |
|
---|
2186 |
|
---|
2187 |
|
---|
2188 | /**
|
---|
2189 | * Reads low part of a machine specific register.
|
---|
2190 | *
|
---|
2191 | * @returns Register content.
|
---|
2192 | * @param uRegister Register to read.
|
---|
2193 | */
|
---|
2194 | #if RT_INLINE_ASM_EXTERNAL && !RT_INLINE_ASM_USES_INTRIN
|
---|
2195 | DECLASM(uint32_t) ASMRdMsr_Low(uint32_t uRegister);
|
---|
2196 | #else
|
---|
2197 | DECLINLINE(uint32_t) ASMRdMsr_Low(uint32_t uRegister)
|
---|
2198 | {
|
---|
2199 | uint32_t u32;
|
---|
2200 | # if RT_INLINE_ASM_GNU_STYLE
|
---|
2201 | __asm__ __volatile__("rdmsr\n\t"
|
---|
2202 | : "=a" (u32)
|
---|
2203 | : "c" (uRegister)
|
---|
2204 | : "edx");
|
---|
2205 |
|
---|
2206 | # elif RT_INLINE_ASM_USES_INTRIN
|
---|
2207 | u32 = (uint32_t)__readmsr(uRegister);
|
---|
2208 |
|
---|
2209 | #else
|
---|
2210 | __asm
|
---|
2211 | {
|
---|
2212 | mov ecx, [uRegister]
|
---|
2213 | rdmsr
|
---|
2214 | mov [u32], eax
|
---|
2215 | }
|
---|
2216 | # endif
|
---|
2217 |
|
---|
2218 | return u32;
|
---|
2219 | }
|
---|
2220 | #endif
|
---|
2221 |
|
---|
2222 |
|
---|
2223 | /**
|
---|
2224 | * Reads high part of a machine specific register.
|
---|
2225 | *
|
---|
2226 | * @returns Register content.
|
---|
2227 | * @param uRegister Register to read.
|
---|
2228 | */
|
---|
2229 | #if RT_INLINE_ASM_EXTERNAL && !RT_INLINE_ASM_USES_INTRIN
|
---|
2230 | DECLASM(uint32_t) ASMRdMsr_High(uint32_t uRegister);
|
---|
2231 | #else
|
---|
2232 | DECLINLINE(uint32_t) ASMRdMsr_High(uint32_t uRegister)
|
---|
2233 | {
|
---|
2234 | uint32_t u32;
|
---|
2235 | # if RT_INLINE_ASM_GNU_STYLE
|
---|
2236 | __asm__ __volatile__("rdmsr\n\t"
|
---|
2237 | : "=d" (u32)
|
---|
2238 | : "c" (uRegister)
|
---|
2239 | : "eax");
|
---|
2240 |
|
---|
2241 | # elif RT_INLINE_ASM_USES_INTRIN
|
---|
2242 | u32 = (uint32_t)(__readmsr(uRegister) >> 32);
|
---|
2243 |
|
---|
2244 | # else
|
---|
2245 | __asm
|
---|
2246 | {
|
---|
2247 | mov ecx, [uRegister]
|
---|
2248 | rdmsr
|
---|
2249 | mov [u32], edx
|
---|
2250 | }
|
---|
2251 | # endif
|
---|
2252 |
|
---|
2253 | return u32;
|
---|
2254 | }
|
---|
2255 | #endif
|
---|
2256 |
|
---|
2257 |
|
---|
2258 | /**
|
---|
2259 | * Gets dr0.
|
---|
2260 | *
|
---|
2261 | * @returns dr0.
|
---|
2262 | */
|
---|
2263 | #if RT_INLINE_ASM_EXTERNAL && !RT_INLINE_ASM_USES_INTRIN
|
---|
2264 | DECLASM(RTCCUINTREG) ASMGetDR0(void);
|
---|
2265 | #else
|
---|
2266 | DECLINLINE(RTCCUINTREG) ASMGetDR0(void)
|
---|
2267 | {
|
---|
2268 | RTCCUINTREG uDR0;
|
---|
2269 | # if RT_INLINE_ASM_USES_INTRIN
|
---|
2270 | uDR0 = __readdr(0);
|
---|
2271 | # elif RT_INLINE_ASM_GNU_STYLE
|
---|
2272 | # ifdef RT_ARCH_AMD64
|
---|
2273 | __asm__ __volatile__("movq %%dr0, %0\n\t" : "=r" (uDR0));
|
---|
2274 | # else
|
---|
2275 | __asm__ __volatile__("movl %%dr0, %0\n\t" : "=r" (uDR0));
|
---|
2276 | # endif
|
---|
2277 | # else
|
---|
2278 | __asm
|
---|
2279 | {
|
---|
2280 | # ifdef RT_ARCH_AMD64
|
---|
2281 | mov rax, dr0
|
---|
2282 | mov [uDR0], rax
|
---|
2283 | # else
|
---|
2284 | mov eax, dr0
|
---|
2285 | mov [uDR0], eax
|
---|
2286 | # endif
|
---|
2287 | }
|
---|
2288 | # endif
|
---|
2289 | return uDR0;
|
---|
2290 | }
|
---|
2291 | #endif
|
---|
2292 |
|
---|
2293 |
|
---|
2294 | /**
|
---|
2295 | * Gets dr1.
|
---|
2296 | *
|
---|
2297 | * @returns dr1.
|
---|
2298 | */
|
---|
2299 | #if RT_INLINE_ASM_EXTERNAL && !RT_INLINE_ASM_USES_INTRIN
|
---|
2300 | DECLASM(RTCCUINTREG) ASMGetDR1(void);
|
---|
2301 | #else
|
---|
2302 | DECLINLINE(RTCCUINTREG) ASMGetDR1(void)
|
---|
2303 | {
|
---|
2304 | RTCCUINTREG uDR1;
|
---|
2305 | # if RT_INLINE_ASM_USES_INTRIN
|
---|
2306 | uDR1 = __readdr(1);
|
---|
2307 | # elif RT_INLINE_ASM_GNU_STYLE
|
---|
2308 | # ifdef RT_ARCH_AMD64
|
---|
2309 | __asm__ __volatile__("movq %%dr1, %0\n\t" : "=r" (uDR1));
|
---|
2310 | # else
|
---|
2311 | __asm__ __volatile__("movl %%dr1, %0\n\t" : "=r" (uDR1));
|
---|
2312 | # endif
|
---|
2313 | # else
|
---|
2314 | __asm
|
---|
2315 | {
|
---|
2316 | # ifdef RT_ARCH_AMD64
|
---|
2317 | mov rax, dr1
|
---|
2318 | mov [uDR1], rax
|
---|
2319 | # else
|
---|
2320 | mov eax, dr1
|
---|
2321 | mov [uDR1], eax
|
---|
2322 | # endif
|
---|
2323 | }
|
---|
2324 | # endif
|
---|
2325 | return uDR1;
|
---|
2326 | }
|
---|
2327 | #endif
|
---|
2328 |
|
---|
2329 |
|
---|
2330 | /**
|
---|
2331 | * Gets dr2.
|
---|
2332 | *
|
---|
2333 | * @returns dr2.
|
---|
2334 | */
|
---|
2335 | #if RT_INLINE_ASM_EXTERNAL && !RT_INLINE_ASM_USES_INTRIN
|
---|
2336 | DECLASM(RTCCUINTREG) ASMGetDR2(void);
|
---|
2337 | #else
|
---|
2338 | DECLINLINE(RTCCUINTREG) ASMGetDR2(void)
|
---|
2339 | {
|
---|
2340 | RTCCUINTREG uDR2;
|
---|
2341 | # if RT_INLINE_ASM_USES_INTRIN
|
---|
2342 | uDR2 = __readdr(2);
|
---|
2343 | # elif RT_INLINE_ASM_GNU_STYLE
|
---|
2344 | # ifdef RT_ARCH_AMD64
|
---|
2345 | __asm__ __volatile__("movq %%dr2, %0\n\t" : "=r" (uDR2));
|
---|
2346 | # else
|
---|
2347 | __asm__ __volatile__("movl %%dr2, %0\n\t" : "=r" (uDR2));
|
---|
2348 | # endif
|
---|
2349 | # else
|
---|
2350 | __asm
|
---|
2351 | {
|
---|
2352 | # ifdef RT_ARCH_AMD64
|
---|
2353 | mov rax, dr2
|
---|
2354 | mov [uDR2], rax
|
---|
2355 | # else
|
---|
2356 | mov eax, dr2
|
---|
2357 | mov [uDR2], eax
|
---|
2358 | # endif
|
---|
2359 | }
|
---|
2360 | # endif
|
---|
2361 | return uDR2;
|
---|
2362 | }
|
---|
2363 | #endif
|
---|
2364 |
|
---|
2365 |
|
---|
2366 | /**
|
---|
2367 | * Gets dr3.
|
---|
2368 | *
|
---|
2369 | * @returns dr3.
|
---|
2370 | */
|
---|
2371 | #if RT_INLINE_ASM_EXTERNAL && !RT_INLINE_ASM_USES_INTRIN
|
---|
2372 | DECLASM(RTCCUINTREG) ASMGetDR3(void);
|
---|
2373 | #else
|
---|
2374 | DECLINLINE(RTCCUINTREG) ASMGetDR3(void)
|
---|
2375 | {
|
---|
2376 | RTCCUINTREG uDR3;
|
---|
2377 | # if RT_INLINE_ASM_USES_INTRIN
|
---|
2378 | uDR3 = __readdr(3);
|
---|
2379 | # elif RT_INLINE_ASM_GNU_STYLE
|
---|
2380 | # ifdef RT_ARCH_AMD64
|
---|
2381 | __asm__ __volatile__("movq %%dr3, %0\n\t" : "=r" (uDR3));
|
---|
2382 | # else
|
---|
2383 | __asm__ __volatile__("movl %%dr3, %0\n\t" : "=r" (uDR3));
|
---|
2384 | # endif
|
---|
2385 | # else
|
---|
2386 | __asm
|
---|
2387 | {
|
---|
2388 | # ifdef RT_ARCH_AMD64
|
---|
2389 | mov rax, dr3
|
---|
2390 | mov [uDR3], rax
|
---|
2391 | # else
|
---|
2392 | mov eax, dr3
|
---|
2393 | mov [uDR3], eax
|
---|
2394 | # endif
|
---|
2395 | }
|
---|
2396 | # endif
|
---|
2397 | return uDR3;
|
---|
2398 | }
|
---|
2399 | #endif
|
---|
2400 |
|
---|
2401 |
|
---|
2402 | /**
|
---|
2403 | * Gets dr6.
|
---|
2404 | *
|
---|
2405 | * @returns dr6.
|
---|
2406 | */
|
---|
2407 | #if RT_INLINE_ASM_EXTERNAL && !RT_INLINE_ASM_USES_INTRIN
|
---|
2408 | DECLASM(RTCCUINTREG) ASMGetDR6(void);
|
---|
2409 | #else
|
---|
2410 | DECLINLINE(RTCCUINTREG) ASMGetDR6(void)
|
---|
2411 | {
|
---|
2412 | RTCCUINTREG uDR6;
|
---|
2413 | # if RT_INLINE_ASM_USES_INTRIN
|
---|
2414 | uDR6 = __readdr(6);
|
---|
2415 | # elif RT_INLINE_ASM_GNU_STYLE
|
---|
2416 | # ifdef RT_ARCH_AMD64
|
---|
2417 | __asm__ __volatile__("movq %%dr6, %0\n\t" : "=r" (uDR6));
|
---|
2418 | # else
|
---|
2419 | __asm__ __volatile__("movl %%dr6, %0\n\t" : "=r" (uDR6));
|
---|
2420 | # endif
|
---|
2421 | # else
|
---|
2422 | __asm
|
---|
2423 | {
|
---|
2424 | # ifdef RT_ARCH_AMD64
|
---|
2425 | mov rax, dr6
|
---|
2426 | mov [uDR6], rax
|
---|
2427 | # else
|
---|
2428 | mov eax, dr6
|
---|
2429 | mov [uDR6], eax
|
---|
2430 | # endif
|
---|
2431 | }
|
---|
2432 | # endif
|
---|
2433 | return uDR6;
|
---|
2434 | }
|
---|
2435 | #endif
|
---|
2436 |
|
---|
2437 |
|
---|
2438 | /**
|
---|
2439 | * Reads and clears DR6.
|
---|
2440 | *
|
---|
2441 | * @returns DR6.
|
---|
2442 | */
|
---|
2443 | #if RT_INLINE_ASM_EXTERNAL && !RT_INLINE_ASM_USES_INTRIN
|
---|
2444 | DECLASM(RTCCUINTREG) ASMGetAndClearDR6(void);
|
---|
2445 | #else
|
---|
2446 | DECLINLINE(RTCCUINTREG) ASMGetAndClearDR6(void)
|
---|
2447 | {
|
---|
2448 | RTCCUINTREG uDR6;
|
---|
2449 | # if RT_INLINE_ASM_USES_INTRIN
|
---|
2450 | uDR6 = __readdr(6);
|
---|
2451 | __writedr(6, 0xffff0ff0U); /* 31-16 and 4-11 are 1's, 12 and 63-31 are zero. */
|
---|
2452 | # elif RT_INLINE_ASM_GNU_STYLE
|
---|
2453 | RTCCUINTREG uNewValue = 0xffff0ff0U;/* 31-16 and 4-11 are 1's, 12 and 63-31 are zero. */
|
---|
2454 | # ifdef RT_ARCH_AMD64
|
---|
2455 | __asm__ __volatile__("movq %%dr6, %0\n\t"
|
---|
2456 | "movq %1, %%dr6\n\t"
|
---|
2457 | : "=r" (uDR6)
|
---|
2458 | : "r" (uNewValue));
|
---|
2459 | # else
|
---|
2460 | __asm__ __volatile__("movl %%dr6, %0\n\t"
|
---|
2461 | "movl %1, %%dr6\n\t"
|
---|
2462 | : "=r" (uDR6)
|
---|
2463 | : "r" (uNewValue));
|
---|
2464 | # endif
|
---|
2465 | # else
|
---|
2466 | __asm
|
---|
2467 | {
|
---|
2468 | # ifdef RT_ARCH_AMD64
|
---|
2469 | mov rax, dr6
|
---|
2470 | mov [uDR6], rax
|
---|
2471 | mov rcx, rax
|
---|
2472 | mov ecx, 0ffff0ff0h; /* 31-16 and 4-11 are 1's, 12 and 63-31 are zero. */
|
---|
2473 | mov dr6, rcx
|
---|
2474 | # else
|
---|
2475 | mov eax, dr6
|
---|
2476 | mov [uDR6], eax
|
---|
2477 | mov ecx, 0ffff0ff0h; /* 31-16 and 4-11 are 1's, 12 is zero. */
|
---|
2478 | mov dr6, ecx
|
---|
2479 | # endif
|
---|
2480 | }
|
---|
2481 | # endif
|
---|
2482 | return uDR6;
|
---|
2483 | }
|
---|
2484 | #endif
|
---|
2485 |
|
---|
2486 |
|
---|
2487 | /**
|
---|
2488 | * Gets dr7.
|
---|
2489 | *
|
---|
2490 | * @returns dr7.
|
---|
2491 | */
|
---|
2492 | #if RT_INLINE_ASM_EXTERNAL && !RT_INLINE_ASM_USES_INTRIN
|
---|
2493 | DECLASM(RTCCUINTREG) ASMGetDR7(void);
|
---|
2494 | #else
|
---|
2495 | DECLINLINE(RTCCUINTREG) ASMGetDR7(void)
|
---|
2496 | {
|
---|
2497 | RTCCUINTREG uDR7;
|
---|
2498 | # if RT_INLINE_ASM_USES_INTRIN
|
---|
2499 | uDR7 = __readdr(7);
|
---|
2500 | # elif RT_INLINE_ASM_GNU_STYLE
|
---|
2501 | # ifdef RT_ARCH_AMD64
|
---|
2502 | __asm__ __volatile__("movq %%dr7, %0\n\t" : "=r" (uDR7));
|
---|
2503 | # else
|
---|
2504 | __asm__ __volatile__("movl %%dr7, %0\n\t" : "=r" (uDR7));
|
---|
2505 | # endif
|
---|
2506 | # else
|
---|
2507 | __asm
|
---|
2508 | {
|
---|
2509 | # ifdef RT_ARCH_AMD64
|
---|
2510 | mov rax, dr7
|
---|
2511 | mov [uDR7], rax
|
---|
2512 | # else
|
---|
2513 | mov eax, dr7
|
---|
2514 | mov [uDR7], eax
|
---|
2515 | # endif
|
---|
2516 | }
|
---|
2517 | # endif
|
---|
2518 | return uDR7;
|
---|
2519 | }
|
---|
2520 | #endif
|
---|
2521 |
|
---|
2522 |
|
---|
2523 | /**
|
---|
2524 | * Sets dr0.
|
---|
2525 | *
|
---|
2526 | * @param uDRVal Debug register value to write
|
---|
2527 | */
|
---|
2528 | #if RT_INLINE_ASM_EXTERNAL && !RT_INLINE_ASM_USES_INTRIN
|
---|
2529 | DECLASM(void) ASMSetDR0(RTCCUINTREG uDRVal);
|
---|
2530 | #else
|
---|
2531 | DECLINLINE(void) ASMSetDR0(RTCCUINTREG uDRVal)
|
---|
2532 | {
|
---|
2533 | # if RT_INLINE_ASM_USES_INTRIN
|
---|
2534 | __writedr(0, uDRVal);
|
---|
2535 | # elif RT_INLINE_ASM_GNU_STYLE
|
---|
2536 | # ifdef RT_ARCH_AMD64
|
---|
2537 | __asm__ __volatile__("movq %0, %%dr0\n\t" : : "r" (uDRVal));
|
---|
2538 | # else
|
---|
2539 | __asm__ __volatile__("movl %0, %%dr0\n\t" : : "r" (uDRVal));
|
---|
2540 | # endif
|
---|
2541 | # else
|
---|
2542 | __asm
|
---|
2543 | {
|
---|
2544 | # ifdef RT_ARCH_AMD64
|
---|
2545 | mov rax, [uDRVal]
|
---|
2546 | mov dr0, rax
|
---|
2547 | # else
|
---|
2548 | mov eax, [uDRVal]
|
---|
2549 | mov dr0, eax
|
---|
2550 | # endif
|
---|
2551 | }
|
---|
2552 | # endif
|
---|
2553 | }
|
---|
2554 | #endif
|
---|
2555 |
|
---|
2556 |
|
---|
2557 | /**
|
---|
2558 | * Sets dr1.
|
---|
2559 | *
|
---|
2560 | * @param uDRVal Debug register value to write
|
---|
2561 | */
|
---|
2562 | #if RT_INLINE_ASM_EXTERNAL && !RT_INLINE_ASM_USES_INTRIN
|
---|
2563 | DECLASM(void) ASMSetDR1(RTCCUINTREG uDRVal);
|
---|
2564 | #else
|
---|
2565 | DECLINLINE(void) ASMSetDR1(RTCCUINTREG uDRVal)
|
---|
2566 | {
|
---|
2567 | # if RT_INLINE_ASM_USES_INTRIN
|
---|
2568 | __writedr(1, uDRVal);
|
---|
2569 | # elif RT_INLINE_ASM_GNU_STYLE
|
---|
2570 | # ifdef RT_ARCH_AMD64
|
---|
2571 | __asm__ __volatile__("movq %0, %%dr1\n\t" : : "r" (uDRVal));
|
---|
2572 | # else
|
---|
2573 | __asm__ __volatile__("movl %0, %%dr1\n\t" : : "r" (uDRVal));
|
---|
2574 | # endif
|
---|
2575 | # else
|
---|
2576 | __asm
|
---|
2577 | {
|
---|
2578 | # ifdef RT_ARCH_AMD64
|
---|
2579 | mov rax, [uDRVal]
|
---|
2580 | mov dr1, rax
|
---|
2581 | # else
|
---|
2582 | mov eax, [uDRVal]
|
---|
2583 | mov dr1, eax
|
---|
2584 | # endif
|
---|
2585 | }
|
---|
2586 | # endif
|
---|
2587 | }
|
---|
2588 | #endif
|
---|
2589 |
|
---|
2590 |
|
---|
2591 | /**
|
---|
2592 | * Sets dr2.
|
---|
2593 | *
|
---|
2594 | * @param uDRVal Debug register value to write
|
---|
2595 | */
|
---|
2596 | #if RT_INLINE_ASM_EXTERNAL && !RT_INLINE_ASM_USES_INTRIN
|
---|
2597 | DECLASM(void) ASMSetDR2(RTCCUINTREG uDRVal);
|
---|
2598 | #else
|
---|
2599 | DECLINLINE(void) ASMSetDR2(RTCCUINTREG uDRVal)
|
---|
2600 | {
|
---|
2601 | # if RT_INLINE_ASM_USES_INTRIN
|
---|
2602 | __writedr(2, uDRVal);
|
---|
2603 | # elif RT_INLINE_ASM_GNU_STYLE
|
---|
2604 | # ifdef RT_ARCH_AMD64
|
---|
2605 | __asm__ __volatile__("movq %0, %%dr2\n\t" : : "r" (uDRVal));
|
---|
2606 | # else
|
---|
2607 | __asm__ __volatile__("movl %0, %%dr2\n\t" : : "r" (uDRVal));
|
---|
2608 | # endif
|
---|
2609 | # else
|
---|
2610 | __asm
|
---|
2611 | {
|
---|
2612 | # ifdef RT_ARCH_AMD64
|
---|
2613 | mov rax, [uDRVal]
|
---|
2614 | mov dr2, rax
|
---|
2615 | # else
|
---|
2616 | mov eax, [uDRVal]
|
---|
2617 | mov dr2, eax
|
---|
2618 | # endif
|
---|
2619 | }
|
---|
2620 | # endif
|
---|
2621 | }
|
---|
2622 | #endif
|
---|
2623 |
|
---|
2624 |
|
---|
2625 | /**
|
---|
2626 | * Sets dr3.
|
---|
2627 | *
|
---|
2628 | * @param uDRVal Debug register value to write
|
---|
2629 | */
|
---|
2630 | #if RT_INLINE_ASM_EXTERNAL && !RT_INLINE_ASM_USES_INTRIN
|
---|
2631 | DECLASM(void) ASMSetDR3(RTCCUINTREG uDRVal);
|
---|
2632 | #else
|
---|
2633 | DECLINLINE(void) ASMSetDR3(RTCCUINTREG uDRVal)
|
---|
2634 | {
|
---|
2635 | # if RT_INLINE_ASM_USES_INTRIN
|
---|
2636 | __writedr(3, uDRVal);
|
---|
2637 | # elif RT_INLINE_ASM_GNU_STYLE
|
---|
2638 | # ifdef RT_ARCH_AMD64
|
---|
2639 | __asm__ __volatile__("movq %0, %%dr3\n\t" : : "r" (uDRVal));
|
---|
2640 | # else
|
---|
2641 | __asm__ __volatile__("movl %0, %%dr3\n\t" : : "r" (uDRVal));
|
---|
2642 | # endif
|
---|
2643 | # else
|
---|
2644 | __asm
|
---|
2645 | {
|
---|
2646 | # ifdef RT_ARCH_AMD64
|
---|
2647 | mov rax, [uDRVal]
|
---|
2648 | mov dr3, rax
|
---|
2649 | # else
|
---|
2650 | mov eax, [uDRVal]
|
---|
2651 | mov dr3, eax
|
---|
2652 | # endif
|
---|
2653 | }
|
---|
2654 | # endif
|
---|
2655 | }
|
---|
2656 | #endif
|
---|
2657 |
|
---|
2658 |
|
---|
2659 | /**
|
---|
2660 | * Sets dr6.
|
---|
2661 | *
|
---|
2662 | * @param uDRVal Debug register value to write
|
---|
2663 | */
|
---|
2664 | #if RT_INLINE_ASM_EXTERNAL && !RT_INLINE_ASM_USES_INTRIN
|
---|
2665 | DECLASM(void) ASMSetDR6(RTCCUINTREG uDRVal);
|
---|
2666 | #else
|
---|
2667 | DECLINLINE(void) ASMSetDR6(RTCCUINTREG uDRVal)
|
---|
2668 | {
|
---|
2669 | # if RT_INLINE_ASM_USES_INTRIN
|
---|
2670 | __writedr(6, uDRVal);
|
---|
2671 | # elif RT_INLINE_ASM_GNU_STYLE
|
---|
2672 | # ifdef RT_ARCH_AMD64
|
---|
2673 | __asm__ __volatile__("movq %0, %%dr6\n\t" : : "r" (uDRVal));
|
---|
2674 | # else
|
---|
2675 | __asm__ __volatile__("movl %0, %%dr6\n\t" : : "r" (uDRVal));
|
---|
2676 | # endif
|
---|
2677 | # else
|
---|
2678 | __asm
|
---|
2679 | {
|
---|
2680 | # ifdef RT_ARCH_AMD64
|
---|
2681 | mov rax, [uDRVal]
|
---|
2682 | mov dr6, rax
|
---|
2683 | # else
|
---|
2684 | mov eax, [uDRVal]
|
---|
2685 | mov dr6, eax
|
---|
2686 | # endif
|
---|
2687 | }
|
---|
2688 | # endif
|
---|
2689 | }
|
---|
2690 | #endif
|
---|
2691 |
|
---|
2692 |
|
---|
2693 | /**
|
---|
2694 | * Sets dr7.
|
---|
2695 | *
|
---|
2696 | * @param uDRVal Debug register value to write
|
---|
2697 | */
|
---|
2698 | #if RT_INLINE_ASM_EXTERNAL && !RT_INLINE_ASM_USES_INTRIN
|
---|
2699 | DECLASM(void) ASMSetDR7(RTCCUINTREG uDRVal);
|
---|
2700 | #else
|
---|
2701 | DECLINLINE(void) ASMSetDR7(RTCCUINTREG uDRVal)
|
---|
2702 | {
|
---|
2703 | # if RT_INLINE_ASM_USES_INTRIN
|
---|
2704 | __writedr(7, uDRVal);
|
---|
2705 | # elif RT_INLINE_ASM_GNU_STYLE
|
---|
2706 | # ifdef RT_ARCH_AMD64
|
---|
2707 | __asm__ __volatile__("movq %0, %%dr7\n\t" : : "r" (uDRVal));
|
---|
2708 | # else
|
---|
2709 | __asm__ __volatile__("movl %0, %%dr7\n\t" : : "r" (uDRVal));
|
---|
2710 | # endif
|
---|
2711 | # else
|
---|
2712 | __asm
|
---|
2713 | {
|
---|
2714 | # ifdef RT_ARCH_AMD64
|
---|
2715 | mov rax, [uDRVal]
|
---|
2716 | mov dr7, rax
|
---|
2717 | # else
|
---|
2718 | mov eax, [uDRVal]
|
---|
2719 | mov dr7, eax
|
---|
2720 | # endif
|
---|
2721 | }
|
---|
2722 | # endif
|
---|
2723 | }
|
---|
2724 | #endif
|
---|
2725 |
|
---|
2726 |
|
---|
2727 | /**
|
---|
2728 | * Writes a 8-bit unsigned integer to an I/O port, ordered.
|
---|
2729 | *
|
---|
2730 | * @param Port I/O port to write to.
|
---|
2731 | * @param u8 8-bit integer to write.
|
---|
2732 | */
|
---|
2733 | #if RT_INLINE_ASM_EXTERNAL && !RT_INLINE_ASM_USES_INTRIN
|
---|
2734 | DECLASM(void) ASMOutU8(RTIOPORT Port, uint8_t u8);
|
---|
2735 | #else
|
---|
2736 | DECLINLINE(void) ASMOutU8(RTIOPORT Port, uint8_t u8)
|
---|
2737 | {
|
---|
2738 | # if RT_INLINE_ASM_GNU_STYLE
|
---|
2739 | __asm__ __volatile__("outb %b1, %w0\n\t"
|
---|
2740 | :: "Nd" (Port),
|
---|
2741 | "a" (u8));
|
---|
2742 |
|
---|
2743 | # elif RT_INLINE_ASM_USES_INTRIN
|
---|
2744 | __outbyte(Port, u8);
|
---|
2745 |
|
---|
2746 | # else
|
---|
2747 | __asm
|
---|
2748 | {
|
---|
2749 | mov dx, [Port]
|
---|
2750 | mov al, [u8]
|
---|
2751 | out dx, al
|
---|
2752 | }
|
---|
2753 | # endif
|
---|
2754 | }
|
---|
2755 | #endif
|
---|
2756 |
|
---|
2757 |
|
---|
2758 | /**
|
---|
2759 | * Reads a 8-bit unsigned integer from an I/O port, ordered.
|
---|
2760 | *
|
---|
2761 | * @returns 8-bit integer.
|
---|
2762 | * @param Port I/O port to read from.
|
---|
2763 | */
|
---|
2764 | #if RT_INLINE_ASM_EXTERNAL && !RT_INLINE_ASM_USES_INTRIN
|
---|
2765 | DECLASM(uint8_t) ASMInU8(RTIOPORT Port);
|
---|
2766 | #else
|
---|
2767 | DECLINLINE(uint8_t) ASMInU8(RTIOPORT Port)
|
---|
2768 | {
|
---|
2769 | uint8_t u8;
|
---|
2770 | # if RT_INLINE_ASM_GNU_STYLE
|
---|
2771 | __asm__ __volatile__("inb %w1, %b0\n\t"
|
---|
2772 | : "=a" (u8)
|
---|
2773 | : "Nd" (Port));
|
---|
2774 |
|
---|
2775 | # elif RT_INLINE_ASM_USES_INTRIN
|
---|
2776 | u8 = __inbyte(Port);
|
---|
2777 |
|
---|
2778 | # else
|
---|
2779 | __asm
|
---|
2780 | {
|
---|
2781 | mov dx, [Port]
|
---|
2782 | in al, dx
|
---|
2783 | mov [u8], al
|
---|
2784 | }
|
---|
2785 | # endif
|
---|
2786 | return u8;
|
---|
2787 | }
|
---|
2788 | #endif
|
---|
2789 |
|
---|
2790 |
|
---|
2791 | /**
|
---|
2792 | * Writes a 16-bit unsigned integer to an I/O port, ordered.
|
---|
2793 | *
|
---|
2794 | * @param Port I/O port to write to.
|
---|
2795 | * @param u16 16-bit integer to write.
|
---|
2796 | */
|
---|
2797 | #if RT_INLINE_ASM_EXTERNAL && !RT_INLINE_ASM_USES_INTRIN
|
---|
2798 | DECLASM(void) ASMOutU16(RTIOPORT Port, uint16_t u16);
|
---|
2799 | #else
|
---|
2800 | DECLINLINE(void) ASMOutU16(RTIOPORT Port, uint16_t u16)
|
---|
2801 | {
|
---|
2802 | # if RT_INLINE_ASM_GNU_STYLE
|
---|
2803 | __asm__ __volatile__("outw %w1, %w0\n\t"
|
---|
2804 | :: "Nd" (Port),
|
---|
2805 | "a" (u16));
|
---|
2806 |
|
---|
2807 | # elif RT_INLINE_ASM_USES_INTRIN
|
---|
2808 | __outword(Port, u16);
|
---|
2809 |
|
---|
2810 | # else
|
---|
2811 | __asm
|
---|
2812 | {
|
---|
2813 | mov dx, [Port]
|
---|
2814 | mov ax, [u16]
|
---|
2815 | out dx, ax
|
---|
2816 | }
|
---|
2817 | # endif
|
---|
2818 | }
|
---|
2819 | #endif
|
---|
2820 |
|
---|
2821 |
|
---|
2822 | /**
|
---|
2823 | * Reads a 16-bit unsigned integer from an I/O port, ordered.
|
---|
2824 | *
|
---|
2825 | * @returns 16-bit integer.
|
---|
2826 | * @param Port I/O port to read from.
|
---|
2827 | */
|
---|
2828 | #if RT_INLINE_ASM_EXTERNAL && !RT_INLINE_ASM_USES_INTRIN
|
---|
2829 | DECLASM(uint16_t) ASMInU16(RTIOPORT Port);
|
---|
2830 | #else
|
---|
2831 | DECLINLINE(uint16_t) ASMInU16(RTIOPORT Port)
|
---|
2832 | {
|
---|
2833 | uint16_t u16;
|
---|
2834 | # if RT_INLINE_ASM_GNU_STYLE
|
---|
2835 | __asm__ __volatile__("inw %w1, %w0\n\t"
|
---|
2836 | : "=a" (u16)
|
---|
2837 | : "Nd" (Port));
|
---|
2838 |
|
---|
2839 | # elif RT_INLINE_ASM_USES_INTRIN
|
---|
2840 | u16 = __inword(Port);
|
---|
2841 |
|
---|
2842 | # else
|
---|
2843 | __asm
|
---|
2844 | {
|
---|
2845 | mov dx, [Port]
|
---|
2846 | in ax, dx
|
---|
2847 | mov [u16], ax
|
---|
2848 | }
|
---|
2849 | # endif
|
---|
2850 | return u16;
|
---|
2851 | }
|
---|
2852 | #endif
|
---|
2853 |
|
---|
2854 |
|
---|
2855 | /**
|
---|
2856 | * Writes a 32-bit unsigned integer to an I/O port, ordered.
|
---|
2857 | *
|
---|
2858 | * @param Port I/O port to write to.
|
---|
2859 | * @param u32 32-bit integer to write.
|
---|
2860 | */
|
---|
2861 | #if RT_INLINE_ASM_EXTERNAL && !RT_INLINE_ASM_USES_INTRIN
|
---|
2862 | DECLASM(void) ASMOutU32(RTIOPORT Port, uint32_t u32);
|
---|
2863 | #else
|
---|
2864 | DECLINLINE(void) ASMOutU32(RTIOPORT Port, uint32_t u32)
|
---|
2865 | {
|
---|
2866 | # if RT_INLINE_ASM_GNU_STYLE
|
---|
2867 | __asm__ __volatile__("outl %1, %w0\n\t"
|
---|
2868 | :: "Nd" (Port),
|
---|
2869 | "a" (u32));
|
---|
2870 |
|
---|
2871 | # elif RT_INLINE_ASM_USES_INTRIN
|
---|
2872 | __outdword(Port, u32);
|
---|
2873 |
|
---|
2874 | # else
|
---|
2875 | __asm
|
---|
2876 | {
|
---|
2877 | mov dx, [Port]
|
---|
2878 | mov eax, [u32]
|
---|
2879 | out dx, eax
|
---|
2880 | }
|
---|
2881 | # endif
|
---|
2882 | }
|
---|
2883 | #endif
|
---|
2884 |
|
---|
2885 |
|
---|
2886 | /**
|
---|
2887 | * Reads a 32-bit unsigned integer from an I/O port, ordered.
|
---|
2888 | *
|
---|
2889 | * @returns 32-bit integer.
|
---|
2890 | * @param Port I/O port to read from.
|
---|
2891 | */
|
---|
2892 | #if RT_INLINE_ASM_EXTERNAL && !RT_INLINE_ASM_USES_INTRIN
|
---|
2893 | DECLASM(uint32_t) ASMInU32(RTIOPORT Port);
|
---|
2894 | #else
|
---|
2895 | DECLINLINE(uint32_t) ASMInU32(RTIOPORT Port)
|
---|
2896 | {
|
---|
2897 | uint32_t u32;
|
---|
2898 | # if RT_INLINE_ASM_GNU_STYLE
|
---|
2899 | __asm__ __volatile__("inl %w1, %0\n\t"
|
---|
2900 | : "=a" (u32)
|
---|
2901 | : "Nd" (Port));
|
---|
2902 |
|
---|
2903 | # elif RT_INLINE_ASM_USES_INTRIN
|
---|
2904 | u32 = __indword(Port);
|
---|
2905 |
|
---|
2906 | # else
|
---|
2907 | __asm
|
---|
2908 | {
|
---|
2909 | mov dx, [Port]
|
---|
2910 | in eax, dx
|
---|
2911 | mov [u32], eax
|
---|
2912 | }
|
---|
2913 | # endif
|
---|
2914 | return u32;
|
---|
2915 | }
|
---|
2916 | #endif
|
---|
2917 |
|
---|
2918 |
|
---|
2919 | /**
|
---|
2920 | * Writes a string of 8-bit unsigned integer items to an I/O port, ordered.
|
---|
2921 | *
|
---|
2922 | * @param Port I/O port to write to.
|
---|
2923 | * @param pau8 Pointer to the string buffer.
|
---|
2924 | * @param c The number of items to write.
|
---|
2925 | */
|
---|
2926 | #if RT_INLINE_ASM_EXTERNAL && !RT_INLINE_ASM_USES_INTRIN
|
---|
2927 | DECLASM(void) ASMOutStrU8(RTIOPORT Port, uint8_t const *pau8, size_t c);
|
---|
2928 | #else
|
---|
2929 | DECLINLINE(void) ASMOutStrU8(RTIOPORT Port, uint8_t const *pau8, size_t c)
|
---|
2930 | {
|
---|
2931 | # if RT_INLINE_ASM_GNU_STYLE
|
---|
2932 | __asm__ __volatile__("rep; outsb\n\t"
|
---|
2933 | : "+S" (pau8),
|
---|
2934 | "+c" (c)
|
---|
2935 | : "d" (Port));
|
---|
2936 |
|
---|
2937 | # elif RT_INLINE_ASM_USES_INTRIN
|
---|
2938 | __outbytestring(Port, (unsigned char *)pau8, (unsigned long)c);
|
---|
2939 |
|
---|
2940 | # else
|
---|
2941 | __asm
|
---|
2942 | {
|
---|
2943 | mov dx, [Port]
|
---|
2944 | mov ecx, [c]
|
---|
2945 | mov eax, [pau8]
|
---|
2946 | xchg esi, eax
|
---|
2947 | rep outsb
|
---|
2948 | xchg esi, eax
|
---|
2949 | }
|
---|
2950 | # endif
|
---|
2951 | }
|
---|
2952 | #endif
|
---|
2953 |
|
---|
2954 |
|
---|
2955 | /**
|
---|
2956 | * Reads a string of 8-bit unsigned integer items from an I/O port, ordered.
|
---|
2957 | *
|
---|
2958 | * @param Port I/O port to read from.
|
---|
2959 | * @param pau8 Pointer to the string buffer (output).
|
---|
2960 | * @param c The number of items to read.
|
---|
2961 | */
|
---|
2962 | #if RT_INLINE_ASM_EXTERNAL && !RT_INLINE_ASM_USES_INTRIN
|
---|
2963 | DECLASM(void) ASMInStrU8(RTIOPORT Port, uint8_t *pau8, size_t c);
|
---|
2964 | #else
|
---|
2965 | DECLINLINE(void) ASMInStrU8(RTIOPORT Port, uint8_t *pau8, size_t c)
|
---|
2966 | {
|
---|
2967 | # if RT_INLINE_ASM_GNU_STYLE
|
---|
2968 | __asm__ __volatile__("rep; insb\n\t"
|
---|
2969 | : "+D" (pau8),
|
---|
2970 | "+c" (c)
|
---|
2971 | : "d" (Port));
|
---|
2972 |
|
---|
2973 | # elif RT_INLINE_ASM_USES_INTRIN
|
---|
2974 | __inbytestring(Port, pau8, (unsigned long)c);
|
---|
2975 |
|
---|
2976 | # else
|
---|
2977 | __asm
|
---|
2978 | {
|
---|
2979 | mov dx, [Port]
|
---|
2980 | mov ecx, [c]
|
---|
2981 | mov eax, [pau8]
|
---|
2982 | xchg edi, eax
|
---|
2983 | rep insb
|
---|
2984 | xchg edi, eax
|
---|
2985 | }
|
---|
2986 | # endif
|
---|
2987 | }
|
---|
2988 | #endif
|
---|
2989 |
|
---|
2990 |
|
---|
2991 | /**
|
---|
2992 | * Writes a string of 16-bit unsigned integer items to an I/O port, ordered.
|
---|
2993 | *
|
---|
2994 | * @param Port I/O port to write to.
|
---|
2995 | * @param pau16 Pointer to the string buffer.
|
---|
2996 | * @param c The number of items to write.
|
---|
2997 | */
|
---|
2998 | #if RT_INLINE_ASM_EXTERNAL && !RT_INLINE_ASM_USES_INTRIN
|
---|
2999 | DECLASM(void) ASMOutStrU16(RTIOPORT Port, uint16_t const *pau16, size_t c);
|
---|
3000 | #else
|
---|
3001 | DECLINLINE(void) ASMOutStrU16(RTIOPORT Port, uint16_t const *pau16, size_t c)
|
---|
3002 | {
|
---|
3003 | # if RT_INLINE_ASM_GNU_STYLE
|
---|
3004 | __asm__ __volatile__("rep; outsw\n\t"
|
---|
3005 | : "+S" (pau16),
|
---|
3006 | "+c" (c)
|
---|
3007 | : "d" (Port));
|
---|
3008 |
|
---|
3009 | # elif RT_INLINE_ASM_USES_INTRIN
|
---|
3010 | __outwordstring(Port, (unsigned short *)pau16, (unsigned long)c);
|
---|
3011 |
|
---|
3012 | # else
|
---|
3013 | __asm
|
---|
3014 | {
|
---|
3015 | mov dx, [Port]
|
---|
3016 | mov ecx, [c]
|
---|
3017 | mov eax, [pau16]
|
---|
3018 | xchg esi, eax
|
---|
3019 | rep outsw
|
---|
3020 | xchg esi, eax
|
---|
3021 | }
|
---|
3022 | # endif
|
---|
3023 | }
|
---|
3024 | #endif
|
---|
3025 |
|
---|
3026 |
|
---|
3027 | /**
|
---|
3028 | * Reads a string of 16-bit unsigned integer items from an I/O port, ordered.
|
---|
3029 | *
|
---|
3030 | * @param Port I/O port to read from.
|
---|
3031 | * @param pau16 Pointer to the string buffer (output).
|
---|
3032 | * @param c The number of items to read.
|
---|
3033 | */
|
---|
3034 | #if RT_INLINE_ASM_EXTERNAL && !RT_INLINE_ASM_USES_INTRIN
|
---|
3035 | DECLASM(void) ASMInStrU16(RTIOPORT Port, uint16_t *pau16, size_t c);
|
---|
3036 | #else
|
---|
3037 | DECLINLINE(void) ASMInStrU16(RTIOPORT Port, uint16_t *pau16, size_t c)
|
---|
3038 | {
|
---|
3039 | # if RT_INLINE_ASM_GNU_STYLE
|
---|
3040 | __asm__ __volatile__("rep; insw\n\t"
|
---|
3041 | : "+D" (pau16),
|
---|
3042 | "+c" (c)
|
---|
3043 | : "d" (Port));
|
---|
3044 |
|
---|
3045 | # elif RT_INLINE_ASM_USES_INTRIN
|
---|
3046 | __inwordstring(Port, pau16, (unsigned long)c);
|
---|
3047 |
|
---|
3048 | # else
|
---|
3049 | __asm
|
---|
3050 | {
|
---|
3051 | mov dx, [Port]
|
---|
3052 | mov ecx, [c]
|
---|
3053 | mov eax, [pau16]
|
---|
3054 | xchg edi, eax
|
---|
3055 | rep insw
|
---|
3056 | xchg edi, eax
|
---|
3057 | }
|
---|
3058 | # endif
|
---|
3059 | }
|
---|
3060 | #endif
|
---|
3061 |
|
---|
3062 |
|
---|
3063 | /**
|
---|
3064 | * Writes a string of 32-bit unsigned integer items to an I/O port, ordered.
|
---|
3065 | *
|
---|
3066 | * @param Port I/O port to write to.
|
---|
3067 | * @param pau32 Pointer to the string buffer.
|
---|
3068 | * @param c The number of items to write.
|
---|
3069 | */
|
---|
3070 | #if RT_INLINE_ASM_EXTERNAL && !RT_INLINE_ASM_USES_INTRIN
|
---|
3071 | DECLASM(void) ASMOutStrU32(RTIOPORT Port, uint32_t const *pau32, size_t c);
|
---|
3072 | #else
|
---|
3073 | DECLINLINE(void) ASMOutStrU32(RTIOPORT Port, uint32_t const *pau32, size_t c)
|
---|
3074 | {
|
---|
3075 | # if RT_INLINE_ASM_GNU_STYLE
|
---|
3076 | __asm__ __volatile__("rep; outsl\n\t"
|
---|
3077 | : "+S" (pau32),
|
---|
3078 | "+c" (c)
|
---|
3079 | : "d" (Port));
|
---|
3080 |
|
---|
3081 | # elif RT_INLINE_ASM_USES_INTRIN
|
---|
3082 | __outdwordstring(Port, (unsigned long *)pau32, (unsigned long)c);
|
---|
3083 |
|
---|
3084 | # else
|
---|
3085 | __asm
|
---|
3086 | {
|
---|
3087 | mov dx, [Port]
|
---|
3088 | mov ecx, [c]
|
---|
3089 | mov eax, [pau32]
|
---|
3090 | xchg esi, eax
|
---|
3091 | rep outsd
|
---|
3092 | xchg esi, eax
|
---|
3093 | }
|
---|
3094 | # endif
|
---|
3095 | }
|
---|
3096 | #endif
|
---|
3097 |
|
---|
3098 |
|
---|
3099 | /**
|
---|
3100 | * Reads a string of 32-bit unsigned integer items from an I/O port, ordered.
|
---|
3101 | *
|
---|
3102 | * @param Port I/O port to read from.
|
---|
3103 | * @param pau32 Pointer to the string buffer (output).
|
---|
3104 | * @param c The number of items to read.
|
---|
3105 | */
|
---|
3106 | #if RT_INLINE_ASM_EXTERNAL && !RT_INLINE_ASM_USES_INTRIN
|
---|
3107 | DECLASM(void) ASMInStrU32(RTIOPORT Port, uint32_t *pau32, size_t c);
|
---|
3108 | #else
|
---|
3109 | DECLINLINE(void) ASMInStrU32(RTIOPORT Port, uint32_t *pau32, size_t c)
|
---|
3110 | {
|
---|
3111 | # if RT_INLINE_ASM_GNU_STYLE
|
---|
3112 | __asm__ __volatile__("rep; insl\n\t"
|
---|
3113 | : "+D" (pau32),
|
---|
3114 | "+c" (c)
|
---|
3115 | : "d" (Port));
|
---|
3116 |
|
---|
3117 | # elif RT_INLINE_ASM_USES_INTRIN
|
---|
3118 | __indwordstring(Port, (unsigned long *)pau32, (unsigned long)c);
|
---|
3119 |
|
---|
3120 | # else
|
---|
3121 | __asm
|
---|
3122 | {
|
---|
3123 | mov dx, [Port]
|
---|
3124 | mov ecx, [c]
|
---|
3125 | mov eax, [pau32]
|
---|
3126 | xchg edi, eax
|
---|
3127 | rep insd
|
---|
3128 | xchg edi, eax
|
---|
3129 | }
|
---|
3130 | # endif
|
---|
3131 | }
|
---|
3132 | #endif
|
---|
3133 |
|
---|
3134 |
|
---|
3135 | /**
|
---|
3136 | * Invalidate page.
|
---|
3137 | *
|
---|
3138 | * @param pv Address of the page to invalidate.
|
---|
3139 | */
|
---|
3140 | #if RT_INLINE_ASM_EXTERNAL && !RT_INLINE_ASM_USES_INTRIN
|
---|
3141 | DECLASM(void) ASMInvalidatePage(void *pv);
|
---|
3142 | #else
|
---|
3143 | DECLINLINE(void) ASMInvalidatePage(void *pv)
|
---|
3144 | {
|
---|
3145 | # if RT_INLINE_ASM_USES_INTRIN
|
---|
3146 | __invlpg(pv);
|
---|
3147 |
|
---|
3148 | # elif RT_INLINE_ASM_GNU_STYLE
|
---|
3149 | __asm__ __volatile__("invlpg %0\n\t"
|
---|
3150 | : : "m" (*(uint8_t *)pv));
|
---|
3151 | # else
|
---|
3152 | __asm
|
---|
3153 | {
|
---|
3154 | # ifdef RT_ARCH_AMD64
|
---|
3155 | mov rax, [pv]
|
---|
3156 | invlpg [rax]
|
---|
3157 | # else
|
---|
3158 | mov eax, [pv]
|
---|
3159 | invlpg [eax]
|
---|
3160 | # endif
|
---|
3161 | }
|
---|
3162 | # endif
|
---|
3163 | }
|
---|
3164 | #endif
|
---|
3165 |
|
---|
3166 |
|
---|
3167 | /**
|
---|
3168 | * Write back the internal caches and invalidate them.
|
---|
3169 | */
|
---|
3170 | #if RT_INLINE_ASM_EXTERNAL && !RT_INLINE_ASM_USES_INTRIN
|
---|
3171 | DECLASM(void) ASMWriteBackAndInvalidateCaches(void);
|
---|
3172 | #else
|
---|
3173 | DECLINLINE(void) ASMWriteBackAndInvalidateCaches(void)
|
---|
3174 | {
|
---|
3175 | # if RT_INLINE_ASM_USES_INTRIN
|
---|
3176 | __wbinvd();
|
---|
3177 |
|
---|
3178 | # elif RT_INLINE_ASM_GNU_STYLE
|
---|
3179 | __asm__ __volatile__("wbinvd");
|
---|
3180 | # else
|
---|
3181 | __asm
|
---|
3182 | {
|
---|
3183 | wbinvd
|
---|
3184 | }
|
---|
3185 | # endif
|
---|
3186 | }
|
---|
3187 | #endif
|
---|
3188 |
|
---|
3189 |
|
---|
3190 | /**
|
---|
3191 | * Invalidate internal and (perhaps) external caches without first
|
---|
3192 | * flushing dirty cache lines. Use with extreme care.
|
---|
3193 | */
|
---|
3194 | #if RT_INLINE_ASM_EXTERNAL
|
---|
3195 | DECLASM(void) ASMInvalidateInternalCaches(void);
|
---|
3196 | #else
|
---|
3197 | DECLINLINE(void) ASMInvalidateInternalCaches(void)
|
---|
3198 | {
|
---|
3199 | # if RT_INLINE_ASM_GNU_STYLE
|
---|
3200 | __asm__ __volatile__("invd");
|
---|
3201 | # else
|
---|
3202 | __asm
|
---|
3203 | {
|
---|
3204 | invd
|
---|
3205 | }
|
---|
3206 | # endif
|
---|
3207 | }
|
---|
3208 | #endif
|
---|
3209 |
|
---|
3210 |
|
---|
3211 | /**
|
---|
3212 | * Memory load/store fence, waits for any pending writes and reads to complete.
|
---|
3213 | * Requires the X86_CPUID_FEATURE_EDX_SSE2 CPUID bit set.
|
---|
3214 | */
|
---|
3215 | DECLINLINE(void) ASMMemoryFenceSSE2(void)
|
---|
3216 | {
|
---|
3217 | #if RT_INLINE_ASM_GNU_STYLE
|
---|
3218 | __asm__ __volatile__ (".byte 0x0f,0xae,0xf0\n\t");
|
---|
3219 | #elif RT_INLINE_ASM_USES_INTRIN
|
---|
3220 | _mm_mfence();
|
---|
3221 | #else
|
---|
3222 | __asm
|
---|
3223 | {
|
---|
3224 | _emit 0x0f
|
---|
3225 | _emit 0xae
|
---|
3226 | _emit 0xf0
|
---|
3227 | }
|
---|
3228 | #endif
|
---|
3229 | }
|
---|
3230 |
|
---|
3231 |
|
---|
3232 | /**
|
---|
3233 | * Memory store fence, waits for any writes to complete.
|
---|
3234 | * Requires the X86_CPUID_FEATURE_EDX_SSE CPUID bit set.
|
---|
3235 | */
|
---|
3236 | DECLINLINE(void) ASMWriteFenceSSE(void)
|
---|
3237 | {
|
---|
3238 | #if RT_INLINE_ASM_GNU_STYLE
|
---|
3239 | __asm__ __volatile__ (".byte 0x0f,0xae,0xf8\n\t");
|
---|
3240 | #elif RT_INLINE_ASM_USES_INTRIN
|
---|
3241 | _mm_sfence();
|
---|
3242 | #else
|
---|
3243 | __asm
|
---|
3244 | {
|
---|
3245 | _emit 0x0f
|
---|
3246 | _emit 0xae
|
---|
3247 | _emit 0xf8
|
---|
3248 | }
|
---|
3249 | #endif
|
---|
3250 | }
|
---|
3251 |
|
---|
3252 |
|
---|
3253 | /**
|
---|
3254 | * Memory load fence, waits for any pending reads to complete.
|
---|
3255 | * Requires the X86_CPUID_FEATURE_EDX_SSE2 CPUID bit set.
|
---|
3256 | */
|
---|
3257 | DECLINLINE(void) ASMReadFenceSSE2(void)
|
---|
3258 | {
|
---|
3259 | #if RT_INLINE_ASM_GNU_STYLE
|
---|
3260 | __asm__ __volatile__ (".byte 0x0f,0xae,0xe8\n\t");
|
---|
3261 | #elif RT_INLINE_ASM_USES_INTRIN
|
---|
3262 | _mm_lfence();
|
---|
3263 | #else
|
---|
3264 | __asm
|
---|
3265 | {
|
---|
3266 | _emit 0x0f
|
---|
3267 | _emit 0xae
|
---|
3268 | _emit 0xe8
|
---|
3269 | }
|
---|
3270 | #endif
|
---|
3271 | }
|
---|
3272 |
|
---|
3273 | #if !defined(_MSC_VER) || !defined(RT_ARCH_AMD64)
|
---|
3274 |
|
---|
3275 | /*
|
---|
3276 | * Clear the AC bit in the EFLAGS register.
|
---|
3277 | * Requires the X86_CPUID_STEXT_FEATURE_EBX_SMAP CPUID bit set.
|
---|
3278 | * Requires to be executed in R0.
|
---|
3279 | */
|
---|
3280 | DECLINLINE(void) ASMClearAC(void)
|
---|
3281 | {
|
---|
3282 | #if RT_INLINE_ASM_GNU_STYLE
|
---|
3283 | __asm__ __volatile__ (".byte 0x0f,0x01,0xca\n\t");
|
---|
3284 | #else
|
---|
3285 | __asm
|
---|
3286 | {
|
---|
3287 | _emit 0x0f
|
---|
3288 | _emit 0x01
|
---|
3289 | _emit 0xca
|
---|
3290 | }
|
---|
3291 | #endif
|
---|
3292 | }
|
---|
3293 |
|
---|
3294 |
|
---|
3295 | /*
|
---|
3296 | * Set the AC bit in the EFLAGS register.
|
---|
3297 | * Requires the X86_CPUID_STEXT_FEATURE_EBX_SMAP CPUID bit set.
|
---|
3298 | * Requires to be executed in R0.
|
---|
3299 | */
|
---|
3300 | DECLINLINE(void) ASMSetAC(void)
|
---|
3301 | {
|
---|
3302 | #if RT_INLINE_ASM_GNU_STYLE
|
---|
3303 | __asm__ __volatile__ (".byte 0x0f,0x01,0xcb\n\t");
|
---|
3304 | #else
|
---|
3305 | __asm
|
---|
3306 | {
|
---|
3307 | _emit 0x0f
|
---|
3308 | _emit 0x01
|
---|
3309 | _emit 0xcb
|
---|
3310 | }
|
---|
3311 | #endif
|
---|
3312 | }
|
---|
3313 |
|
---|
3314 | #endif /* !_MSC_VER) || !RT_ARCH_AMD64 */
|
---|
3315 |
|
---|
3316 | /** @} */
|
---|
3317 | #endif
|
---|
3318 |
|
---|