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KVM: x86 emulator: Disable writeback for CMP emulation
authorTakuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp>
Tue, 12 Apr 2011 15:24:55 +0000 (00:24 +0900)
committerAvi Kivity <avi@redhat.com>
Wed, 11 May 2011 11:57:08 +0000 (07:57 -0400)
commitdc7631328fcccc11bc0e265582b67c185759b577
tree0f7d85332966e89520dd00fcee03e66b47fdb15etree | snapshot
parentf4d7564c284ffb6cddaae13f167d5f1cc7fdfd16commit | diff
KVM: x86 emulator: Disable writeback for CMP emulation

This stops "CMP r/m, reg" to write back the data into memory.
Pointed out by Avi.

The writeback suppression now covers CMP, CMPS, SCAS.

Signed-off-by: Takuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp>
Signed-off-by: Avi Kivity <avi@redhat.com>
arch/x86/kvm/emulate.c diff | blob | history
Linux Kernel Source Tree.