gcc/config/i386/sgxintrin.h

   1 /* Copyright (C) 2017-2024 Free Software Foundation, Inc.
   2
   3    This file is part of GCC.
   4
   5    GCC is free software; you can redistribute it and/or modify
   6    it under the terms of the GNU General Public License as published by
   7    the Free Software Foundation; either version 3, or (at your option)
   8    any later version.
   9
  10    GCC is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13    GNU General Public License for more details.
  14
  15    Under Section 7 of GPL version 3, you are granted additional
  16    permissions described in the GCC Runtime Library Exception, version
  17    3.1, as published by the Free Software Foundation.
  18
  19    You should have received a copy of the GNU General Public License and
  20    a copy of the GCC Runtime Library Exception along with this program;
  21    see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
  22    <http://www.gnu.org/licenses/>.  */
  23
  24 #ifndef _SGXINTRIN_H_INCLUDED
  25 #define _SGXINTRIN_H_INCLUDED
  26
  27 #ifndef __SGX__
  28 #pragma GCC push_options
  29 #pragma GCC target("sgx")
  30 #define __DISABLE_SGX__
  31 #endif /* __SGX__ */
  32
  33 #define __encls_bc(leaf, b, c, retval)                  \
  34   __asm__ __volatile__ ("encls\n\t"                     \
  35            : "=a" (retval)                              \
  36            : "a" (leaf), "b" (b), "c" (c)               \
  37            : "cc")
  38
  39 #define __encls_bcd(leaf, b, c, d, retval)              \
  40   __asm__ __volatile__("encls\n\t"                      \
  41            : "=a" (retval)                              \
  42            : "a" (leaf), "b" (b), "c" (c), "d" (d)      \
  43            : "cc")
  44
  45 #define __encls_c(leaf, c, retval)                      \
  46   __asm__ __volatile__("encls\n\t"                      \
  47            : "=a" (retval)                              \
  48            : "a" (leaf), "c" (c)                        \
  49            : "cc")
  50
  51 #define __encls_edbgrd(leaf, b, c, retval)              \
  52   __asm__ __volatile__("encls\n\t"                      \
  53            : "=a" (retval), "=b" (b)                    \
  54            : "a" (leaf), "c" (c))
  55
  56 #define __encls_generic(leaf, b, c, d, retval)          \
  57   __asm__ __volatile__("encls\n\t"                      \
  58            : "=a" (retval), "=b" (b), "=c" (c), "=d" (d)\
  59            : "a" (leaf), "b" (b), "c" (c), "d" (d)      \
  60            : "cc")
  61
  62 #define __enclu_bc(leaf, b, c, retval)                  \
  63   __asm__ __volatile__("enclu\n\t"                      \
  64            : "=a" (retval)                              \
  65            : "a" (leaf), "b" (b), "c" (c)               \
  66            : "cc")
  67
  68 #define __enclu_bcd(leaf, b, c, d, retval)              \
  69   __asm__ __volatile__("enclu\n\t"                      \
  70            : "=a" (retval)                              \
  71            : "a" (leaf), "b" (b), "c" (c), "d" (d)      \
  72            : "cc")
  73
  74 #define __enclu_eenter(leaf, b, c, retval)              \
  75   __asm__  __volatile__("enclu\n\t"                     \
  76            : "=a" (retval), "=c" (c)                    \
  77            : "a" (leaf), "b" (b), "c" (c)               \
  78            : "cc")
  79
  80 #define __enclu_eexit(leaf, b, c, retval)               \
  81   __asm__  __volatile__("enclu\n\t"                     \
  82            : "=a" (retval), "=c" (c)                    \
  83            : "a" (leaf), "b" (b)                        \
  84            : "cc")
  85
  86 #define __enclu_generic(leaf, b, c, d, retval)          \
  87   __asm__ __volatile__("enclu\n\t"                      \
  88            : "=a" (retval), "=b" (b), "=c" (c), "=d" (d)\
  89            : "a" (leaf), "b" (b), "c" (c), "d" (d)      \
  90            : "cc")
  91
  92 #define __enclv_bc(leaf, b, c, retval)                  \
  93   __asm__ __volatile__("enclv\n\t"                      \
  94            : "=a" (retval)                              \
  95            : "a" (leaf), "b" (b), "c" (c)               \
  96            : "cc")
  97
  98 #define __enclv_cd(leaf, c, d, retval)                  \
  99   __asm__ __volatile__("enclv\n\t"                      \
 100            : "=a" (retval)                              \
 101            : "a" (leaf), "c" (c), "d" (d)               \
 102            : "cc")
 103
 104 #define __enclv_generic(leaf, b, c, d, retval)          \
 105   __asm__ __volatile__("enclv\n\t"                      \
 106            : "=a" (retval), "=b" (b), "=c" (b), "=d" (d)\
 107            : "a" (leaf), "b" (b), "c" (c), "d" (d)      \
 108            : "cc")
 109
 110 extern __inline unsigned int
 111 __attribute__((__gnu_inline__, __always_inline__, __artificial__))
 112 _encls_u32 (const unsigned int __L, size_t __D[])
 113 {
 114   enum __encls_type
 115   {
 116     __SGX_ECREATE = 0x00,
 117     __SGX_EADD    = 0x01,
 118     __SGX_EINIT   = 0x02,
 119     __SGX_EREMOVE = 0x03,
 120     __SGX_EDBGRD  = 0x04,
 121     __SGX_EDBGWR  = 0x05,
 122     __SGX_EEXTEND = 0x06,
 123     __SGX_ELDB    = 0x07,
 124     __SGX_ELDU    = 0x08,
 125     __SGX_EBLOCK  = 0x09,
 126     __SGX_EPA     = 0x0A,
 127     __SGX_EWB     = 0x0B,
 128     __SGX_ETRACK  = 0x0C,
 129     __SGX_EAUG    = 0x0D,
 130     __SGX_EMODPR  = 0x0E,
 131     __SGX_EMODT   = 0x0F,
 132     __SGX_ERDINFO = 0x10,
 133     __SGX_ETRACKC = 0x11,
 134     __SGX_ELDBC   = 0x12,
 135     __SGX_ELDUC   = 0x13
 136   };
 137   enum __encls_type __T = (enum __encls_type)__L;
 138   unsigned int __R = 0;
 139   if (!__builtin_constant_p (__T))
 140     __encls_generic (__L, __D[0], __D[1], __D[2], __R);
 141   else switch (__T)
 142     {
 143     case __SGX_ECREATE:
 144     case __SGX_EADD:
 145     case __SGX_EDBGWR:
 146     case __SGX_EEXTEND:
 147     case __SGX_EPA:
 148     case __SGX_EMODPR:
 149     case __SGX_EMODT:
 150     case __SGX_EAUG:
 151     case __SGX_ERDINFO:
 152       __encls_bc (__L, __D[0], __D[1], __R);
 153       break;
 154     case __SGX_EINIT:
 155     case __SGX_ELDB:
 156     case __SGX_ELDU:
 157     case __SGX_EWB:
 158     case __SGX_ELDBC:
 159     case __SGX_ELDUC:
 160       __encls_bcd (__L, __D[0], __D[1], __D[2], __R);
 161       break;
 162     case __SGX_EREMOVE:
 163     case __SGX_EBLOCK:
 164     case __SGX_ETRACK:
 165     case __SGX_ETRACKC:
 166       __encls_c (__L, __D[1], __R);
 167       break;
 168     case __SGX_EDBGRD:
 169       __encls_edbgrd (__L, __D[0], __D[1], __R);
 170       break;
 171     default:
 172       __encls_generic (__L, __D[0], __D[1], __D[2], __R);
 173     }
 174   return __R;
 175 }
 176
 177 extern __inline unsigned int
 178 __attribute__((__gnu_inline__, __always_inline__, __artificial__))
 179 _enclu_u32 (const unsigned int __L, size_t __D[])
 180 {
 181   enum __enclu_type
 182   {
 183     __SGX_EREPORT     = 0x00,
 184     __SGX_EGETKEY     = 0x01,
 185     __SGX_EENTER      = 0x02,
 186     __SGX_ERESUME     = 0x03,
 187     __SGX_EEXIT       = 0x04,
 188     __SGX_EACCEPT     = 0x05,
 189     __SGX_EMODPE      = 0x06,
 190     __SGX_EACCEPTCOPY = 0x07
 191   };
 192   enum __enclu_type __T = (enum __enclu_type) __L;
 193   unsigned int __R = 0;
 194   if (!__builtin_constant_p (__T))
 195     __enclu_generic (__L, __D[0], __D[1], __D[2], __R);
 196   else switch (__T)
 197     {
 198     case __SGX_EREPORT:
 199     case __SGX_EACCEPTCOPY:
 200       __enclu_bcd (__L, __D[0], __D[1], __D[2], __R);
 201       break;
 202     case __SGX_EGETKEY:
 203     case __SGX_ERESUME:
 204     case __SGX_EACCEPT:
 205     case __SGX_EMODPE:
 206       __enclu_bc (__L, __D[0], __D[1], __R);
 207       break;
 208     case __SGX_EENTER:
 209       __enclu_eenter (__L, __D[0], __D[1], __R);
 210       break;
 211     case __SGX_EEXIT:
 212       __enclu_eexit (__L, __D[0], __D[1], __R);
 213       break;
 214     default:
 215       __enclu_generic (__L, __D[0], __D[1], __D[2], __R);
 216     }
 217   return __R;
 218 }
 219
 220 extern __inline unsigned int
 221 __attribute__((__gnu_inline__, __always_inline__, __artificial__))
 222 _enclv_u32 (const unsigned int __L, size_t __D[])
 223 {
 224   enum __enclv_type
 225   {
 226     __SGX_EDECVIRTCHILD = 0x00,
 227     __SGX_EINCVIRTCHILD = 0x01,
 228     __SGX_ESETCONTEXT   = 0x02
 229   };
 230   unsigned int __R = 0;
 231   if (!__builtin_constant_p (__L))
 232     __enclv_generic (__L, __D[0], __D[1], __D[2], __R);
 233   else switch (__L)
 234     {
 235     case __SGX_EDECVIRTCHILD:
 236     case __SGX_EINCVIRTCHILD:
 237       __enclv_bc (__L, __D[0], __D[1], __R);
 238       break;
 239     case __SGX_ESETCONTEXT:
 240       __enclv_cd (__L, __D[1], __D[2], __R);
 241       break;
 242     default:
 243       __enclv_generic (__L, __D[0], __D[1], __D[2], __R);
 244     }
 245   return __R;
 246 }
 247
 248 #ifdef __DISABLE_SGX__
 249 #undef __DISABLE_SGX__
 250 #pragma GCC pop_options
 251 #endif /* __DISABLE_SGX__ */
 252
 253 #endif /* _SGXINTRIN_H_INCLUDED */