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| author | Avi Kivity <avi@redhat.com> | 2011-03-29 13:34:38 +0400 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2011-05-11 15:56:59 +0400 |
| commit | 0d7cdee83ad1582eecbf3b4a220e82dcb5ad561c (patch) | |
| tree | 928983175d0e149e9957884524218ffc257a98ed /tools/perf/scripts/python/netdev-times.py | |
| parent | 5037f6f324cdcc6c9071dc774aba992f96c7e5ff (diff) | |
| download | linux-0d7cdee83ad1582eecbf3b4a220e82dcb5ad561c.tar.xz | |
KVM: x86 emulator: Specialize decoding for insns with 66/f2/f3 prefixes
Most SIMD instructions use the 66/f2/f3 prefixes to distinguish between
different variants of the same instruction. Usually the encoding is quite
regular, but in some cases (including non-SIMD instructions) the prefixes
generate very different instructions. Examples include XCHG/PAUSE,
MOVQ/MOVDQA/MOVDQU, and MOVBE/CRC32.
Allow the emulator to handle these special cases by splitting such opcodes
into groups, with different decode flags and execution functions for different
prefixes.
Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'tools/perf/scripts/python/netdev-times.py')
0 files changed, 0 insertions, 0 deletions