Commit 60f24784 authored by Avi Kivity's avatar Avi Kivity

KVM: Optimize kvm_mmu_unprotect_page_virt() for tdp

We know no pages are protected, so we can short-circuit the whole thing
(including fairly nasty guest memory accesses).
Signed-off-by: default avatarAvi Kivity <avi@redhat.com>
parent 5dadbfd6
...@@ -2694,6 +2694,9 @@ int kvm_mmu_unprotect_page_virt(struct kvm_vcpu *vcpu, gva_t gva) ...@@ -2694,6 +2694,9 @@ int kvm_mmu_unprotect_page_virt(struct kvm_vcpu *vcpu, gva_t gva)
gpa_t gpa; gpa_t gpa;
int r; int r;
if (tdp_enabled)
return 0;
gpa = vcpu->arch.mmu.gva_to_gpa(vcpu, gva); gpa = vcpu->arch.mmu.gva_to_gpa(vcpu, gva);
spin_lock(&vcpu->kvm->mmu_lock); spin_lock(&vcpu->kvm->mmu_lock);
......
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