tree 5a9917fc3b03b6f1c9d9e1436c89c3bc5f45b636
parent 96304217a783a65c0923a26f54141cfe7a2a71b5
author Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> 1305472827 +0800
committer Avi Kivity <avi@redhat.com> 1310460302 +0300

KVM: MMU: optimize pte write path if don't have protected sp

Simply return from kvm_mmu_pte_write path if no shadow page is
write-protected, then we can avoid to walk all shadow pages and hold
mmu-lock

Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>