KVM: SVM: Drop tlb flush workaround in npt

It is no longer possible to reproduce the problem any more, so presumably
it has been fixed.

Signed-off-by: Avi Kivity <avi@redhat.com>

1 files changed, 2 insertions, 11 deletions

diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 8f7751a66a2b..944cc9c04b3c 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -1187,17 +1187,8 @@ static int pf_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run)
         error_code = svm->vmcb->control.exit_info_1;
 
         trace_kvm_page_fault(fault_address, error_code);
-        /*
-         * FIXME: Tis shouldn't be necessary here, but there is a flush
-         * missing in the MMU code. Until we find this bug, flush the
-         * complete TLB here on an NPF
-         */
-        if (npt_enabled)
-                svm_flush_tlb(&svm->vcpu);
-        else {
-                if (kvm_event_needs_reinjection(&svm->vcpu))
-                        kvm_mmu_unprotect_page_virt(&svm->vcpu, fault_address);
-        }
+        if (!npt_enabled && kvm_event_needs_reinjection(&svm->vcpu))
+                kvm_mmu_unprotect_page_virt(&svm->vcpu, fault_address);
         return kvm_mmu_page_fault(&svm->vcpu, fault_address, error_code);
 }