| commit | 60f24784a92c25c269a5e741a8ce8ff63e887be8 | [log] [tgz] |
|---|---|---|
| author | Avi Kivity <avi@redhat.com> | Thu Aug 27 13:37:06 2009 +0300 |
| committer | Avi Kivity <avi@redhat.com> | Thu Sep 10 10:46:56 2009 +0300 |
| tree | e14483c4f507bad1756b8ce82f2f73b0190b026f | |
| parent | 5dadbfd64724c41716d4fc82df6f01b023d5b15d [diff] |
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: Avi Kivity <avi@redhat.com>
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index 6f38178..eca41ae 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c
@@ -2694,6 +2694,9 @@ gpa_t gpa; int r; + if (tdp_enabled) + return 0; + gpa = vcpu->arch.mmu.gva_to_gpa(vcpu, gva); spin_lock(&vcpu->kvm->mmu_lock);