1 #ifndef _ASM_X86_INAT_H 2 #define _ASM_X86_INAT_H 3 /* 4 * x86 instruction attributes 5 * 6 * Written by Masami Hiramatsu <mhiramat@redhat.com> 7 * 8 * This program is free software; you can redistribute it and/or modify 9 * it under the terms of the GNU General Public License as published by 10 * the Free Software Foundation; either version 2 of the License, or 11 * (at your option) any later version. 12 * 13 * This program is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 * GNU General Public License for more details. 17 * 18 * You should have received a copy of the GNU General Public License 19 * along with this program; if not, write to the Free Software 20 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 21 * 22 */ 23 #include <asm/inat_types.h> 24 25 /* 26 * Internal bits. Don't use bitmasks directly, because these bits are 27 * unstable. You should use checking functions. 28 */ 29 30 #define INAT_OPCODE_TABLE_SIZE 256 31 #define INAT_GROUP_TABLE_SIZE 8 32 33 /* Legacy last prefixes */ 34 #define INAT_PFX_OPNDSZ 1 /* 0x66 */ /* LPFX1 */ 35 #define INAT_PFX_REPE 2 /* 0xF3 */ /* LPFX2 */ 36 #define INAT_PFX_REPNE 3 /* 0xF2 */ /* LPFX3 */ 37 /* Other Legacy prefixes */ 38 #define INAT_PFX_LOCK 4 /* 0xF0 */ 39 #define INAT_PFX_CS 5 /* 0x2E */ 40 #define INAT_PFX_DS 6 /* 0x3E */ 41 #define INAT_PFX_ES 7 /* 0x26 */ 42 #define INAT_PFX_FS 8 /* 0x64 */ 43 #define INAT_PFX_GS 9 /* 0x65 */ 44 #define INAT_PFX_SS 10 /* 0x36 */ 45 #define INAT_PFX_ADDRSZ 11 /* 0x67 */ 46 /* x86-64 REX prefix */ 47 #define INAT_PFX_REX 12 /* 0x4X */ 48 /* AVX VEX prefixes */ 49 #define INAT_PFX_VEX2 13 /* 2-bytes VEX prefix */ 50 #define INAT_PFX_VEX3 14 /* 3-bytes VEX prefix */ 51 #define INAT_PFX_EVEX 15 /* EVEX prefix */ 52 53 #define INAT_LSTPFX_MAX 3 54 #define INAT_LGCPFX_MAX 11 55 56 /* Immediate size */ 57 #define INAT_IMM_BYTE 1 58 #define INAT_IMM_WORD 2 59 #define INAT_IMM_DWORD 3 60 #define INAT_IMM_QWORD 4 61 #define INAT_IMM_PTR 5 62 #define INAT_IMM_VWORD32 6 63 #define INAT_IMM_VWORD 7 64 65 /* Legacy prefix */ 66 #define INAT_PFX_OFFS 0 67 #define INAT_PFX_BITS 4 68 #define INAT_PFX_MAX ((1 << INAT_PFX_BITS) - 1) 69 #define INAT_PFX_MASK (INAT_PFX_MAX << INAT_PFX_OFFS) 70 /* Escape opcodes */ 71 #define INAT_ESC_OFFS (INAT_PFX_OFFS + INAT_PFX_BITS) 72 #define INAT_ESC_BITS 2 73 #define INAT_ESC_MAX ((1 << INAT_ESC_BITS) - 1) 74 #define INAT_ESC_MASK (INAT_ESC_MAX << INAT_ESC_OFFS) 75 /* Group opcodes (1-16) */ 76 #define INAT_GRP_OFFS (INAT_ESC_OFFS + INAT_ESC_BITS) 77 #define INAT_GRP_BITS 5 78 #define INAT_GRP_MAX ((1 << INAT_GRP_BITS) - 1) 79 #define INAT_GRP_MASK (INAT_GRP_MAX << INAT_GRP_OFFS) 80 /* Immediates */ 81 #define INAT_IMM_OFFS (INAT_GRP_OFFS + INAT_GRP_BITS) 82 #define INAT_IMM_BITS 3 83 #define INAT_IMM_MASK (((1 << INAT_IMM_BITS) - 1) << INAT_IMM_OFFS) 84 /* Flags */ 85 #define INAT_FLAG_OFFS (INAT_IMM_OFFS + INAT_IMM_BITS) 86 #define INAT_MODRM (1 << (INAT_FLAG_OFFS)) 87 #define INAT_FORCE64 (1 << (INAT_FLAG_OFFS + 1)) 88 #define INAT_SCNDIMM (1 << (INAT_FLAG_OFFS + 2)) 89 #define INAT_MOFFSET (1 << (INAT_FLAG_OFFS + 3)) 90 #define INAT_VARIANT (1 << (INAT_FLAG_OFFS + 4)) 91 #define INAT_VEXOK (1 << (INAT_FLAG_OFFS + 5)) 92 #define INAT_VEXONLY (1 << (INAT_FLAG_OFFS + 6)) 93 #define INAT_EVEXONLY (1 << (INAT_FLAG_OFFS + 7)) 94 /* Attribute making macros for attribute tables */ 95 #define INAT_MAKE_PREFIX(pfx) (pfx << INAT_PFX_OFFS) 96 #define INAT_MAKE_ESCAPE(esc) (esc << INAT_ESC_OFFS) 97 #define INAT_MAKE_GROUP(grp) ((grp << INAT_GRP_OFFS) | INAT_MODRM) 98 #define INAT_MAKE_IMM(imm) (imm << INAT_IMM_OFFS) 99 100 /* Attribute search APIs */ 101 extern insn_attr_t inat_get_opcode_attribute(insn_byte_t opcode); 102 extern int inat_get_last_prefix_id(insn_byte_t last_pfx); 103 extern insn_attr_t inat_get_escape_attribute(insn_byte_t opcode, 104 int lpfx_id, 105 insn_attr_t esc_attr); 106 extern insn_attr_t inat_get_group_attribute(insn_byte_t modrm, 107 int lpfx_id, 108 insn_attr_t esc_attr); 109 extern insn_attr_t inat_get_avx_attribute(insn_byte_t opcode, 110 insn_byte_t vex_m, 111 insn_byte_t vex_pp); 112 113 /* Attribute checking functions */ 114 static inline int inat_is_legacy_prefix(insn_attr_t attr) 115 { 116 attr &= INAT_PFX_MASK; 117 return attr && attr <= INAT_LGCPFX_MAX; 118 } 119 120 static inline int inat_is_address_size_prefix(insn_attr_t attr) 121 { 122 return (attr & INAT_PFX_MASK) == INAT_PFX_ADDRSZ; 123 } 124 125 static inline int inat_is_operand_size_prefix(insn_attr_t attr) 126 { 127 return (attr & INAT_PFX_MASK) == INAT_PFX_OPNDSZ; 128 } 129 130 static inline int inat_is_rex_prefix(insn_attr_t attr) 131 { 132 return (attr & INAT_PFX_MASK) == INAT_PFX_REX; 133 } 134 135 static inline int inat_last_prefix_id(insn_attr_t attr) 136 { 137 if ((attr & INAT_PFX_MASK) > INAT_LSTPFX_MAX) 138 return 0; 139 else 140 return attr & INAT_PFX_MASK; 141 } 142 143 static inline int inat_is_vex_prefix(insn_attr_t attr) 144 { 145 attr &= INAT_PFX_MASK; 146 return attr == INAT_PFX_VEX2 || attr == INAT_PFX_VEX3 || 147 attr == INAT_PFX_EVEX; 148 } 149 150 static inline int inat_is_evex_prefix(insn_attr_t attr) 151 { 152 return (attr & INAT_PFX_MASK) == INAT_PFX_EVEX; 153 } 154 155 static inline int inat_is_vex3_prefix(insn_attr_t attr) 156 { 157 return (attr & INAT_PFX_MASK) == INAT_PFX_VEX3; 158 } 159 160 static inline int inat_is_escape(insn_attr_t attr) 161 { 162 return attr & INAT_ESC_MASK; 163 } 164 165 static inline int inat_escape_id(insn_attr_t attr) 166 { 167 return (attr & INAT_ESC_MASK) >> INAT_ESC_OFFS; 168 } 169 170 static inline int inat_is_group(insn_attr_t attr) 171 { 172 return attr & INAT_GRP_MASK; 173 } 174 175 static inline int inat_group_id(insn_attr_t attr) 176 { 177 return (attr & INAT_GRP_MASK) >> INAT_GRP_OFFS; 178 } 179 180 static inline int inat_group_common_attribute(insn_attr_t attr) 181 { 182 return attr & ~INAT_GRP_MASK; 183 } 184 185 static inline int inat_has_immediate(insn_attr_t attr) 186 { 187 return attr & INAT_IMM_MASK; 188 } 189 190 static inline int inat_immediate_size(insn_attr_t attr) 191 { 192 return (attr & INAT_IMM_MASK) >> INAT_IMM_OFFS; 193 } 194 195 static inline int inat_has_modrm(insn_attr_t attr) 196 { 197 return attr & INAT_MODRM; 198 } 199 200 static inline int inat_is_force64(insn_attr_t attr) 201 { 202 return attr & INAT_FORCE64; 203 } 204 205 static inline int inat_has_second_immediate(insn_attr_t attr) 206 { 207 return attr & INAT_SCNDIMM; 208 } 209 210 static inline int inat_has_moffset(insn_attr_t attr) 211 { 212 return attr & INAT_MOFFSET; 213 } 214 215 static inline int inat_has_variant(insn_attr_t attr) 216 { 217 return attr & INAT_VARIANT; 218 } 219 220 static inline int inat_accept_vex(insn_attr_t attr) 221 { 222 return attr & INAT_VEXOK; 223 } 224 225 static inline int inat_must_vex(insn_attr_t attr) 226 { 227 return attr & (INAT_VEXONLY | INAT_EVEXONLY); 228 } 229 230 static inline int inat_must_evex(insn_attr_t attr) 231 { 232 return attr & INAT_EVEXONLY; 233 } 234 #endif 235