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authorDong, Eddie <eddie.dong@intel.com>2008-01-02 07:29:08 +0100
committerAvi Kivity <avi@qumranet.com>2008-01-30 17:01:21 +0100
commit5882842f9b86179e1fe2e17e35e0e46a268d04e4 (patch)
tree033dbe065c24563d6cd21ae2c10af8833eac79d9 /arch/x86/kvm/paging_tmpl.h
parentKVM: MMU: Move kvm_free_some_pages() into critical section (diff)
downloadlinux-5882842f9b86179e1fe2e17e35e0e46a268d04e4.tar.xz
linux-5882842f9b86179e1fe2e17e35e0e46a268d04e4.zip
KVM: MMU: Merge shadow level check in FNAME(fetch)
Remove the redundant level check when fetching shadow pte for present & non-present spte. Signed-off-by: Yaozu (Eddie) Dong <eddie.dong@intel.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
Diffstat (limited to 'arch/x86/kvm/paging_tmpl.h')
-rw-r--r--arch/x86/kvm/paging_tmpl.h7
1 files changed, 2 insertions, 5 deletions
diff --git a/arch/x86/kvm/paging_tmpl.h b/arch/x86/kvm/paging_tmpl.h
index 349920556be3..03ba8608fe0f 100644
--- a/arch/x86/kvm/paging_tmpl.h
+++ b/arch/x86/kvm/paging_tmpl.h
@@ -300,16 +300,13 @@ static u64 *FNAME(fetch)(struct kvm_vcpu *vcpu, gva_t addr,
bool new_page = 0;
shadow_ent = ((u64 *)__va(shadow_addr)) + index;
+ if (level == PT_PAGE_TABLE_LEVEL)
+ break;
if (is_shadow_present_pte(*shadow_ent)) {
- if (level == PT_PAGE_TABLE_LEVEL)
- break;
shadow_addr = *shadow_ent & PT64_BASE_ADDR_MASK;
continue;
}
- if (level == PT_PAGE_TABLE_LEVEL)
- break;
-
if (level - 1 == PT_PAGE_TABLE_LEVEL
&& walker->level == PT_DIRECTORY_LEVEL) {
metaphysical = 1;