From: Takuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp>
Date: Tue, 12 Apr 2011 15:24:55 +0000 (+0900)
Subject: KVM: x86 emulator: Disable writeback for CMP emulation
X-Git-Tag: v3.0-rc1~350^2~71
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=575e7c1417d41dd72ddf2a49965f833ce9352e92;p=pandora-kernel.git

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>
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