1 | /* Copyright (C) 2017-2021 Free Software Foundation, Inc.
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2 |
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3 | This file is part of GCC.
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4 |
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5 | GCC is free software; you can redistribute it and/or modify
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6 | it under the terms of the GNU General Public License as published by
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7 | the Free Software Foundation; either version 3, or (at your option)
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8 | any later version.
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9 |
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10 | GCC is distributed in the hope that it will be useful,
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11 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 | GNU General Public License for more details.
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14 |
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15 | Under Section 7 of GPL version 3, you are granted additional
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16 | permissions described in the GCC Runtime Library Exception, version
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17 | 3.1, as published by the Free Software Foundation.
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18 |
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19 | You should have received a copy of the GNU General Public License and
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20 | a copy of the GCC Runtime Library Exception along with this program;
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21 | see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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22 | <http://www.gnu.org/licenses/>. */
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23 |
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24 | #ifndef _SGXINTRIN_H_INCLUDED
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25 | #define _SGXINTRIN_H_INCLUDED
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26 |
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27 | #ifndef __SGX__
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28 | #pragma GCC push_options
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29 | #pragma GCC target("sgx")
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30 | #define __DISABLE_SGX__
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31 | #endif /* __SGX__ */
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32 |
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33 | #define __encls_bc(leaf, b, c, retval) \
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34 | __asm__ __volatile__ ("encls\n\t" \
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35 | : "=a" (retval) \
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36 | : "a" (leaf), "b" (b), "c" (c) \
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37 | : "cc")
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38 |
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39 | #define __encls_bcd(leaf, b, c, d, retval) \
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40 | __asm__ __volatile__("encls\n\t" \
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41 | : "=a" (retval) \
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42 | : "a" (leaf), "b" (b), "c" (c), "d" (d) \
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43 | : "cc")
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44 |
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45 | #define __encls_c(leaf, c, retval) \
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46 | __asm__ __volatile__("encls\n\t" \
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47 | : "=a" (retval) \
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48 | : "a" (leaf), "c" (c) \
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49 | : "cc")
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50 |
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51 | #define __encls_edbgrd(leaf, b, c, retval) \
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52 | __asm__ __volatile__("encls\n\t" \
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53 | : "=a" (retval), "=b" (b) \
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54 | : "a" (leaf), "c" (c))
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55 |
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56 | #define __encls_generic(leaf, b, c, d, retval) \
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57 | __asm__ __volatile__("encls\n\t" \
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58 | : "=a" (retval), "=b" (b), "=c" (c), "=d" (d)\
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59 | : "a" (leaf), "b" (b), "c" (c), "d" (d) \
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60 | : "cc")
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61 |
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62 | #define __enclu_bc(leaf, b, c, retval) \
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63 | __asm__ __volatile__("enclu\n\t" \
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64 | : "=a" (retval) \
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65 | : "a" (leaf), "b" (b), "c" (c) \
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66 | : "cc")
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67 |
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68 | #define __enclu_bcd(leaf, b, c, d, retval) \
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69 | __asm__ __volatile__("enclu\n\t" \
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70 | : "=a" (retval) \
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71 | : "a" (leaf), "b" (b), "c" (c), "d" (d) \
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72 | : "cc")
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73 |
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74 | #define __enclu_eenter(leaf, b, c, retval) \
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75 | __asm__ __volatile__("enclu\n\t" \
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76 | : "=a" (retval), "=c" (c) \
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77 | : "a" (leaf), "b" (b), "c" (c) \
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78 | : "cc")
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79 |
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80 | #define __enclu_eexit(leaf, b, c, retval) \
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81 | __asm__ __volatile__("enclu\n\t" \
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82 | : "=a" (retval), "=c" (c) \
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83 | : "a" (leaf), "b" (b) \
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84 | : "cc")
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85 |
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86 | #define __enclu_generic(leaf, b, c, d, retval) \
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87 | __asm__ __volatile__("enclu\n\t" \
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88 | : "=a" (retval), "=b" (b), "=c" (c), "=d" (d)\
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89 | : "a" (leaf), "b" (b), "c" (c), "d" (d) \
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90 | : "cc")
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91 |
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92 | #define __enclv_bc(leaf, b, c, retval) \
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93 | __asm__ __volatile__("enclv\n\t" \
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94 | : "=a" (retval) \
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95 | : "a" (leaf), "b" (b), "c" (c) \
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96 | : "cc")
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97 |
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98 | #define __enclv_cd(leaf, c, d, retval) \
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99 | __asm__ __volatile__("enclv\n\t" \
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100 | : "=a" (retval) \
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101 | : "a" (leaf), "c" (c), "d" (d) \
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102 | : "cc")
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103 |
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104 | #define __enclv_generic(leaf, b, c, d, retval) \
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105 | __asm__ __volatile__("enclv\n\t" \
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106 | : "=a" (retval), "=b" (b), "=c" (b), "=d" (d)\
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107 | : "a" (leaf), "b" (b), "c" (c), "d" (d) \
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108 | : "cc")
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109 |
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110 | extern __inline unsigned int
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111 | __attribute__((__gnu_inline__, __always_inline__, __artificial__))
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112 | _encls_u32 (const unsigned int __L, size_t __D[])
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113 | {
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114 | enum __encls_type
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115 | {
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116 | __SGX_ECREATE = 0x00,
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117 | __SGX_EADD = 0x01,
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118 | __SGX_EINIT = 0x02,
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119 | __SGX_EREMOVE = 0x03,
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120 | __SGX_EDBGRD = 0x04,
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121 | __SGX_EDBGWR = 0x05,
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122 | __SGX_EEXTEND = 0x06,
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123 | __SGX_ELDB = 0x07,
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124 | __SGX_ELDU = 0x08,
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125 | __SGX_EBLOCK = 0x09,
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126 | __SGX_EPA = 0x0A,
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127 | __SGX_EWB = 0x0B,
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128 | __SGX_ETRACK = 0x0C,
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129 | __SGX_EAUG = 0x0D,
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130 | __SGX_EMODPR = 0x0E,
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131 | __SGX_EMODT = 0x0F,
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132 | __SGX_ERDINFO = 0x10,
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133 | __SGX_ETRACKC = 0x11,
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134 | __SGX_ELDBC = 0x12,
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135 | __SGX_ELDUC = 0x13
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136 | };
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137 | enum __encls_type __T = (enum __encls_type)__L;
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138 | unsigned int __R = 0;
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139 | if (!__builtin_constant_p (__T))
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140 | __encls_generic (__L, __D[0], __D[1], __D[2], __R);
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141 | else switch (__T)
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142 | {
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143 | case __SGX_ECREATE:
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144 | case __SGX_EADD:
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145 | case __SGX_EDBGWR:
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146 | case __SGX_EEXTEND:
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147 | case __SGX_EPA:
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148 | case __SGX_EMODPR:
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149 | case __SGX_EMODT:
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150 | case __SGX_EAUG:
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151 | case __SGX_ERDINFO:
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152 | __encls_bc (__L, __D[0], __D[1], __R);
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153 | break;
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154 | case __SGX_EINIT:
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155 | case __SGX_ELDB:
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156 | case __SGX_ELDU:
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157 | case __SGX_EWB:
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158 | case __SGX_ELDBC:
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159 | case __SGX_ELDUC:
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160 | __encls_bcd (__L, __D[0], __D[1], __D[2], __R);
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161 | break;
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162 | case __SGX_EREMOVE:
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163 | case __SGX_EBLOCK:
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164 | case __SGX_ETRACK:
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165 | case __SGX_ETRACKC:
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166 | __encls_c (__L, __D[1], __R);
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167 | break;
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168 | case __SGX_EDBGRD:
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169 | __encls_edbgrd (__L, __D[0], __D[1], __R);
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170 | break;
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171 | default:
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172 | __encls_generic (__L, __D[0], __D[1], __D[2], __R);
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173 | }
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174 | return __R;
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175 | }
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176 |
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177 | extern __inline unsigned int
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178 | __attribute__((__gnu_inline__, __always_inline__, __artificial__))
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179 | _enclu_u32 (const unsigned int __L, size_t __D[])
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180 | {
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181 | enum __enclu_type
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182 | {
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183 | __SGX_EREPORT = 0x00,
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184 | __SGX_EGETKEY = 0x01,
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185 | __SGX_EENTER = 0x02,
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186 | __SGX_ERESUME = 0x03,
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187 | __SGX_EEXIT = 0x04,
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188 | __SGX_EACCEPT = 0x05,
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189 | __SGX_EMODPE = 0x06,
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190 | __SGX_EACCEPTCOPY = 0x07
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191 | };
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192 | enum __enclu_type __T = (enum __enclu_type) __L;
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193 | unsigned int __R = 0;
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194 | if (!__builtin_constant_p (__T))
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195 | __enclu_generic (__L, __D[0], __D[1], __D[2], __R);
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196 | else switch (__T)
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197 | {
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198 | case __SGX_EREPORT:
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199 | case __SGX_EACCEPTCOPY:
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200 | __enclu_bcd (__L, __D[0], __D[1], __D[2], __R);
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201 | break;
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202 | case __SGX_EGETKEY:
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203 | case __SGX_ERESUME:
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204 | case __SGX_EACCEPT:
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205 | case __SGX_EMODPE:
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206 | __enclu_bc (__L, __D[0], __D[1], __R);
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207 | break;
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208 | case __SGX_EENTER:
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209 | __enclu_eenter (__L, __D[0], __D[1], __R);
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210 | break;
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211 | case __SGX_EEXIT:
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212 | __enclu_eexit (__L, __D[0], __D[1], __R);
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213 | break;
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214 | default:
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215 | __enclu_generic (__L, __D[0], __D[1], __D[2], __R);
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216 | }
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217 | return __R;
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218 | }
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219 |
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220 | extern __inline unsigned int
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221 | __attribute__((__gnu_inline__, __always_inline__, __artificial__))
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222 | _enclv_u32 (const unsigned int __L, size_t __D[])
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223 | {
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224 | enum __enclv_type
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225 | {
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226 | __SGX_EDECVIRTCHILD = 0x00,
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227 | __SGX_EINCVIRTCHILD = 0x01,
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228 | __SGX_ESETCONTEXT = 0x02
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229 | };
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230 | unsigned int __R = 0;
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231 | if (!__builtin_constant_p (__L))
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232 | __enclv_generic (__L, __D[0], __D[1], __D[2], __R);
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233 | else switch (__L)
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234 | {
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235 | case __SGX_EDECVIRTCHILD:
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236 | case __SGX_EINCVIRTCHILD:
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237 | __enclv_bc (__L, __D[0], __D[1], __R);
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238 | break;
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239 | case __SGX_ESETCONTEXT:
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240 | __enclv_cd (__L, __D[1], __D[2], __R);
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241 | break;
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242 | default:
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243 | __enclv_generic (__L, __D[0], __D[1], __D[2], __R);
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244 | }
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245 | return __R;
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246 | }
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247 |
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248 | #ifdef __DISABLE_SGX__
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249 | #undef __DISABLE_SGX__
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250 | #pragma GCC pop_options
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251 | #endif /* __DISABLE_SGX__ */
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252 |
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253 | #endif /* _SGXINTRIN_H_INCLUDED */
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