tree 6a4a74a1b6b1f59dccc14ec8211ae0793644c84f
parent f759e2b4c728cee82e4bc1132d0e41177b79a0b1
author Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> 1316681626 +0800
committer Avi Kivity <avi@redhat.com> 1324977408 +0200

KVM: x86: tag the instructions which are used to write page table

The idea is from Avi:
| tag instructions that are typically used to modify the page tables, and
| drop shadow if any other instruction is used.
| The list would include, I'd guess, and, or, bts, btc, mov, xchg, cmpxchg,
| and cmpxchg8b.

This patch is used to tag the instructions and in the later path, shadow page
is dropped if it is written by other instructions

Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: Avi Kivity <avi@redhat.com>