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authorMasami Hiramatsu <masami.hiramatsu.pt@hitachi.com>2012-02-10 14:33:40 +0900
committerIngo Molnar <mingo@elte.hu>2012-02-11 15:11:35 +0100
commitf8d98f1095210da708a59f3a0b6fd267ad8f3f03 (patch)
treee950cbe3f00efa648a41c463ed33c8087d240573 /arch/x86/include/asm/inat.h
parent86f5e6a7b192721995ece919985ac75222402351 (diff)
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.h5
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,