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| author | Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> | 2012-02-10 14:33:40 +0900 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2012-02-11 15:11:35 +0100 |
| commit | f8d98f1095210da708a59f3a0b6fd267ad8f3f03 (patch) | |
| tree | e950cbe3f00efa648a41c463ed33c8087d240573 /arch/x86/include/asm/inat.h | |
| parent | 86f5e6a7b192721995ece919985ac75222402351 (diff) | |
| download | linux-f8d98f1095210da708a59f3a0b6fd267ad8f3f03.tar.bz2 | |
x86: Fix to decode grouped AVX with VEX pp bits
Fix to decode grouped AVX with VEX pp bits which should be
handled as same as last-prefixes. This fixes below warnings
in posttest with CONFIG_CRYPTO_SHA1_SSSE3=y.
Warning: arch/x86/tools/test_get_len found difference at <sha1_transform_avx>:ffffffff810d5fc0
Warning: ffffffff810d6069: c5 f9 73 de 04 vpsrldq $0x4,%xmm6,%xmm0
Warning: objdump says 5 bytes, but insn_get_length() says 4
...
With this change, test_get_len can decode it correctly.
$ arch/x86/tools/test_get_len -v -y
ffffffff810d6069: c5 f9 73 de 04 vpsrldq $0x4,%xmm6,%xmm0
Succeed: decoded and checked 1 instructions
Reported-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: yrl.pp-manager.tt@hitachi.com
Link: http://lkml.kernel.org/r/20120210053340.30429.73410.stgit@localhost.localdomain
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/include/asm/inat.h')
| -rw-r--r-- | arch/x86/include/asm/inat.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/x86/include/asm/inat.h b/arch/x86/include/asm/inat.h index 205b063e3e32..74a2e312e8a2 100644 --- a/arch/x86/include/asm/inat.h +++ b/arch/x86/include/asm/inat.h @@ -97,11 +97,12 @@ /* Attribute search APIs */ extern insn_attr_t inat_get_opcode_attribute(insn_byte_t opcode); +extern int inat_get_last_prefix_id(insn_byte_t last_pfx); extern insn_attr_t inat_get_escape_attribute(insn_byte_t opcode, - insn_byte_t last_pfx, + int lpfx_id, insn_attr_t esc_attr); extern insn_attr_t inat_get_group_attribute(insn_byte_t modrm, - insn_byte_t last_pfx, + int lpfx_id, insn_attr_t esc_attr); extern insn_attr_t inat_get_avx_attribute(insn_byte_t opcode, insn_byte_t vex_m, |