diff options
| -rw-r--r-- | arch/x86/kvm/mmu/mmu.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c index 9368a71336fe..c13b80fe3125 100644 --- a/arch/x86/kvm/mmu/mmu.c +++ b/arch/x86/kvm/mmu/mmu.c @@ -2459,13 +2459,15 @@ static struct kvm_mmu_page *kvm_mmu_get_child_sp(struct kvm_vcpu *vcpu, u64 *sptep, gfn_t gfn, bool direct, unsigned int access) { - union kvm_mmu_page_role role; + union kvm_mmu_page_role role = kvm_mmu_child_role(sptep, direct, access); - if (is_shadow_present_pte(*sptep) && !is_large_pte(*sptep) && - spte_to_child_sp(*sptep) && spte_to_child_sp(*sptep)->gfn == gfn) + if (is_shadow_present_pte(*sptep) && + !is_large_pte(*sptep) && + spte_to_child_sp(*sptep) && + spte_to_child_sp(*sptep)->gfn == gfn && + spte_to_child_sp(*sptep)->role.word == role.word) return ERR_PTR(-EEXIST); - role = kvm_mmu_child_role(sptep, direct, access); return kvm_mmu_get_shadow_page(vcpu, gfn, role); } |