Xen devel - Jul 2008 - [PATCH] x86emulate - fix unintended writeback on cmp/test instructions

This patch fixes an issue when x86_emulate is called with force_writeback=1
set. It resulted in cmp and test instructions with memory operands to have
the mem value written back after instruction emulation finished. This caused
false alarms on writes to RO mem, and might have caused other issues if
unintended writes occured to device registers in mmio space.

Signed-off-by: Trolle Selander <trolle.selander@eu.citrix.com
<mailto:trolle.selander@eu.citrix.com>
<trolle.selander@eu.citrix.com>



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