diff options
| author | Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> | 2011-05-15 11:20:27 -0400 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2011-07-12 04:45:02 -0400 |
| commit | 332b207d65c1d7982489dbb83e5071c95e19eb75 (patch) | |
| tree | 5a9917fc3b03b6f1c9d9e1436c89c3bc5f45b636 /arch/x86/include/asm/kvm_host.h | |
| parent | 96304217a783a65c0923a26f54141cfe7a2a71b5 (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>
Diffstat (limited to 'arch/x86/include/asm/kvm_host.h')
| -rw-r--r-- | arch/x86/include/asm/kvm_host.h | 1 |
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 db4b6543b830..387780eb97bb 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h | |||
| @@ -441,6 +441,7 @@ struct kvm_arch { | |||
| 441 | unsigned int n_used_mmu_pages; | 441 | unsigned int n_used_mmu_pages; |
| 442 | unsigned int n_requested_mmu_pages; | 442 | unsigned int n_requested_mmu_pages; |
| 443 | unsigned int n_max_mmu_pages; | 443 | unsigned int n_max_mmu_pages; |
| 444 | unsigned int indirect_shadow_pages; | ||
| 444 | atomic_t invlpg_counter; | 445 | atomic_t invlpg_counter; |
| 445 | struct hlist_head mmu_page_hash[KVM_NUM_MMU_PAGES]; | 446 | struct hlist_head mmu_page_hash[KVM_NUM_MMU_PAGES]; |
| 446 | /* | 447 | /* |