Don not walk to the next level if spte is mapping to the large page
Signed-off-by: Xiao Guangrong <[email protected]>
---
arch/x86/kvm/mmu.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index b9bf016..10e0982 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -3819,7 +3819,8 @@ int kvm_mmu_get_spte_hierarchy(struct kvm_vcpu *vcpu, u64
addr, u64 sptes[4])
for_each_shadow_entry(vcpu, addr, iterator) {
sptes[iterator.level-1] = *iterator.sptep;
nr_sptes++;
- if (!is_shadow_present_pte(*iterator.sptep))
+ if (!is_shadow_present_pte(*iterator.sptep) ||
+ is_last_spte(*iterator.sptep, iterator.level))
break;
}
spin_unlock(&vcpu->kvm->mmu_lock);
--
1.7.4
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