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 */
13insn_attr_t inat_get_opcode_attribute(insn_byte_t opcode)
14{
15	return inat_primary_table[opcode];
16}
17
18int 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(last_pfx);
23	return inat_last_prefix_id(lpfx_attr);
24}
25
26insn_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(esc_attr);
33
34	table = inat_escape_tables[n][0];
35	if (!table)
36		return 0;
37	if (inat_has_variant(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
45insn_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(grp_attr);
52
53	table = inat_group_tables[n][0];
54	if (!table)
55		return inat_group_common_attribute(grp_attr);
56	if (inat_has_variant(table[X86_MODRM_REG(modrm)]) && lpfx_id) {
57		table = inat_group_tables[n][lpfx_id];
58		if (!table)
59			return inat_group_common_attribute(grp_attr);
60	}
61	return table[X86_MODRM_REG(modrm)] |
62	       inat_group_common_attribute(grp_attr);
63}
64
65insn_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(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

 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 */
13insn_attr_t inat_get_opcode_attribute(insn_byte_t opcode)
14{
15	return inat_primary_table[opcode];
16}
17
18int 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(last_pfx);
23	return inat_last_prefix_id(lpfx_attr);
24}
25
26insn_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(esc_attr);
33
34	table = inat_escape_tables[n][0];
35	if (!table)
36		return 0;
37	if (inat_has_variant(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
45insn_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(grp_attr);
52
53	table = inat_group_tables[n][0];
54	if (!table)
55		return inat_group_common_attribute(grp_attr);
56	if (inat_has_variant(table[X86_MODRM_REG(modrm)]) && lpfx_id) {
57		table = inat_group_tables[n][lpfx_id];
58		if (!table)
59			return inat_group_common_attribute(grp_attr);
60	}
61	return table[X86_MODRM_REG(modrm)] |
62	       inat_group_common_attribute(grp_attr);
63}
64
65insn_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(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