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(parent: 9630421) | patch
KVM: MMU: optimize pte write path if don't have protected sp
authorXiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Sun, 15 May 2011 15:20:27 +0000 (23:20 +0800)
committerAvi Kivity <avi@redhat.com>
Tue, 12 Jul 2011 08:45:02 +0000 (11:45 +0300)
commit332b207d65c1d7982489dbb83e5071c95e19eb75
tree5a9917fc3b03b6f1c9d9e1436c89c3bc5f45b636tree | snapshot
parent96304217a783a65c0923a26f54141cfe7a2a71b5commit | diff
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>
arch/x86/include/asm/kvm_host.h diff | blob | history
arch/x86/kvm/mmu.c diff | blob | history
Domain: System / Kernel;