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authorXiao Guangrong <xiaoguangrong@cn.fujitsu.com>2011-05-15 23:20:27 +0800
committerAvi Kivity <avi@redhat.com>2011-07-12 11:45:02 +0300
commit332b207d65c1d7982489dbb83e5071c95e19eb75 (patch)
tree5a9917fc3b03b6f1c9d9e1436c89c3bc5f45b636 /arch/x86/include
parent96304217a783a65c0923a26f54141cfe7a2a71b5 (diff)
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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>
Diffstat (limited to 'arch/x86/include')
-rw-r--r--arch/x86/include/asm/kvm_host.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index db4b6543b83..387780eb97b 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -441,6 +441,7 @@ struct kvm_arch {
unsigned int n_used_mmu_pages;
unsigned int n_requested_mmu_pages;
unsigned int n_max_mmu_pages;
+ unsigned int indirect_shadow_pages;
atomic_t invlpg_counter;
struct hlist_head mmu_page_hash[KVM_NUM_MMU_PAGES];
/*