e0e492e99b
Add Intel AVX(Advanced Vector Extensions) instruction set support to x86 instruction decoder. This adds insn.vex_prefix field for storing VEX prefixes, and introduces some original tags for expressing opcodes attributes. Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Jim Keniston <jkenisto@us.ibm.com> Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com> Cc: Christoph Hellwig <hch@infradead.org> Cc: Frank Ch. Eigler <fche@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jason Baron <jbaron@redhat.com> Cc: K.Prasad <prasad@linux.vnet.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com> LKML-Reference: <20091027204226.30545.23451.stgit@harusame> Signed-off-by: Ingo Molnar <mingo@elte.hu>
90 lines
2.5 KiB
C
90 lines
2.5 KiB
C
/*
|
|
* x86 instruction attribute tables
|
|
*
|
|
* Written by Masami Hiramatsu <mhiramat@redhat.com>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
|
*
|
|
*/
|
|
#include <asm/insn.h>
|
|
|
|
/* Attribute tables are generated from opcode map */
|
|
#include "inat-tables.c"
|
|
|
|
/* Attribute search APIs */
|
|
insn_attr_t inat_get_opcode_attribute(insn_byte_t opcode)
|
|
{
|
|
return inat_primary_table[opcode];
|
|
}
|
|
|
|
insn_attr_t inat_get_escape_attribute(insn_byte_t opcode, insn_byte_t last_pfx,
|
|
insn_attr_t esc_attr)
|
|
{
|
|
const insn_attr_t *table;
|
|
insn_attr_t lpfx_attr;
|
|
int n, m = 0;
|
|
|
|
n = inat_escape_id(esc_attr);
|
|
if (last_pfx) {
|
|
lpfx_attr = inat_get_opcode_attribute(last_pfx);
|
|
m = inat_last_prefix_id(lpfx_attr);
|
|
}
|
|
table = inat_escape_tables[n][0];
|
|
if (!table)
|
|
return 0;
|
|
if (inat_has_variant(table[opcode]) && m) {
|
|
table = inat_escape_tables[n][m];
|
|
if (!table)
|
|
return 0;
|
|
}
|
|
return table[opcode];
|
|
}
|
|
|
|
insn_attr_t inat_get_group_attribute(insn_byte_t modrm, insn_byte_t last_pfx,
|
|
insn_attr_t grp_attr)
|
|
{
|
|
const insn_attr_t *table;
|
|
insn_attr_t lpfx_attr;
|
|
int n, m = 0;
|
|
|
|
n = inat_group_id(grp_attr);
|
|
if (last_pfx) {
|
|
lpfx_attr = inat_get_opcode_attribute(last_pfx);
|
|
m = inat_last_prefix_id(lpfx_attr);
|
|
}
|
|
table = inat_group_tables[n][0];
|
|
if (!table)
|
|
return inat_group_common_attribute(grp_attr);
|
|
if (inat_has_variant(table[X86_MODRM_REG(modrm)]) && m) {
|
|
table = inat_group_tables[n][m];
|
|
if (!table)
|
|
return inat_group_common_attribute(grp_attr);
|
|
}
|
|
return table[X86_MODRM_REG(modrm)] |
|
|
inat_group_common_attribute(grp_attr);
|
|
}
|
|
|
|
insn_attr_t inat_get_avx_attribute(insn_byte_t opcode, insn_byte_t vex_m,
|
|
insn_byte_t vex_p)
|
|
{
|
|
const insn_attr_t *table;
|
|
if (vex_m > X86_VEX_M_MAX || vex_p > INAT_LSTPFX_MAX)
|
|
return 0;
|
|
table = inat_avx_tables[vex_m][vex_p];
|
|
if (!table)
|
|
return 0;
|
|
return table[opcode];
|
|
}
|
|
|