KVM: emulate: speed up do_insn_fetch

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Hoist the common case up from do_insn_fetch_byte to do_insn_fetch,
and prime the fetch_cache in x86_decode_insn.  This helps a bit the
compiler and the branch predictor, but above all it lays the
ground for further changes in the next few patches.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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Paolo Bonzini 2014-05-06 12:24:32 +02:00

parent 41061cdb98

commit 285ca9e948

1 changed files with 36 additions and 31 deletions

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arch/x86/kvm/emulate.c

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