KVM: ia64: preserve int status through call to kvm_insert_vmm_mapping

Preserve interrupt status around call to kvm_insert_vmm_mappin()
in kvm_vcpu_pre_transition().
Signed-off-by: NJes Sorensen <jes@sgi.com>
Acked-by: NXiantao Zhang <xiantao.zhang@intel.com>
Signed-off-by: NAvi Kivity <avi@redhat.com>

arch/ia64/kvm/kvm-ia64.c

@@ -619,6 +619,8 @@ static void kvm_purge_vmm_mapping(struct kvm_vcpu *vcpu)
 
 static int kvm_vcpu_pre_transition(struct kvm_vcpu *vcpu)
 {
+	unsigned long psr;
+	int r;
 	int cpu = smp_processor_id();
 
 	if (vcpu->arch.last_run_cpu != cpu ||
@@ -630,7 +632,10 @@ static int kvm_vcpu_pre_transition(struct kvm_vcpu *vcpu)
 
 	vcpu->arch.host_rr6 = ia64_get_rr(RR6);
 	vti_set_rr6(vcpu->arch.vmm_rr);
-	return kvm_insert_vmm_mapping(vcpu);
+	local_irq_save(psr);
+	r = kvm_insert_vmm_mapping(vcpu);
+	local_irq_restore(psr);
+	return r;
 }
 
 static void kvm_vcpu_post_transition(struct kvm_vcpu *vcpu)