| 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
|---|---|
| 2 | /* |
| 3 | * x86 instruction attribute tables |
| 4 | * |
| 5 | * Written by Masami Hiramatsu <mhiramat@redhat.com> |
| 6 | */ |
| 7 | #include <asm/insn.h> /* __ignore_sync_check__ */ |
| 8 | |
| 9 | /* Attribute tables are generated from opcode map */ |
| 10 | #include "inat-tables.c" |
| 11 | |
| 12 | /* Attribute search APIs */ |
| 13 | insn_attr_t inat_get_opcode_attribute(insn_byte_t opcode) |
| 14 | { |
| 15 | return inat_primary_table[opcode]; |
| 16 | } |
| 17 | |
| 18 | int inat_get_last_prefix_id(insn_byte_t last_pfx) |
| 19 | { |
| 20 | insn_attr_t lpfx_attr; |
| 21 | |
| 22 | lpfx_attr = inat_get_opcode_attribute(opcode: last_pfx); |
| 23 | return inat_last_prefix_id(attr: lpfx_attr); |
| 24 | } |
| 25 | |
| 26 | insn_attr_t inat_get_escape_attribute(insn_byte_t opcode, int lpfx_id, |
| 27 | insn_attr_t esc_attr) |
| 28 | { |
| 29 | const insn_attr_t *table; |
| 30 | int n; |
| 31 | |
| 32 | n = inat_escape_id(attr: esc_attr); |
| 33 | |
| 34 | table = inat_escape_tables[n][0]; |
| 35 | if (!table) |
| 36 | return 0; |
| 37 | if (inat_has_variant(attr: table[opcode]) && lpfx_id) { |
| 38 | table = inat_escape_tables[n][lpfx_id]; |
| 39 | if (!table) |
| 40 | return 0; |
| 41 | } |
| 42 | return table[opcode]; |
| 43 | } |
| 44 | |
| 45 | insn_attr_t inat_get_group_attribute(insn_byte_t modrm, int lpfx_id, |
| 46 | insn_attr_t grp_attr) |
| 47 | { |
| 48 | const insn_attr_t *table; |
| 49 | int n; |
| 50 | |
| 51 | n = inat_group_id(attr: grp_attr); |
| 52 | |
| 53 | table = inat_group_tables[n][0]; |
| 54 | if (!table) |
| 55 | return inat_group_common_attribute(attr: grp_attr); |
| 56 | if (inat_has_variant(attr: table[X86_MODRM_REG(modrm)]) && lpfx_id) { |
| 57 | table = inat_group_tables[n][lpfx_id]; |
| 58 | if (!table) |
| 59 | return inat_group_common_attribute(attr: grp_attr); |
| 60 | } |
| 61 | return table[X86_MODRM_REG(modrm)] | |
| 62 | inat_group_common_attribute(attr: grp_attr); |
| 63 | } |
| 64 | |
| 65 | insn_attr_t inat_get_avx_attribute(insn_byte_t opcode, insn_byte_t vex_m, |
| 66 | insn_byte_t vex_p) |
| 67 | { |
| 68 | const insn_attr_t *table; |
| 69 | if (vex_m > X86_VEX_M_MAX || vex_p > INAT_LSTPFX_MAX) |
| 70 | return 0; |
| 71 | /* At first, this checks the master table */ |
| 72 | table = inat_avx_tables[vex_m][0]; |
| 73 | if (!table) |
| 74 | return 0; |
| 75 | if (!inat_is_group(attr: table[opcode]) && vex_p) { |
| 76 | /* If this is not a group, get attribute directly */ |
| 77 | table = inat_avx_tables[vex_m][vex_p]; |
| 78 | if (!table) |
| 79 | return 0; |
| 80 | } |
| 81 | return table[opcode]; |
| 82 | } |
| 83 | |
| 84 |