Hi,

On 2017/3/22 6:47, Tyler Baicar wrote:

+	fault_ipa = kvm_vcpu_get_fault_ipa(vcpu);
+
+	/* The host kernel will handle the synchronous external abort. There
+	 * is no need to pass the error into the guest.
+	 */
+	if (is_abort_synchronous(fault_status))
+		sea_status = handle_guest_sea((unsigned long)fault_ipa,
+				    kvm_vcpu_get_hsr(vcpu));
 
 	is_iabt = kvm_vcpu_trap_is_iabt(vcpu);
-	if (unlikely(!is_iabt && kvm_vcpu_dabt_isextabt(vcpu))) {
+	if (unlikely(!is_iabt && kvm_vcpu_dabt_isextabt(vcpu)) && sea_status) {
 		kvm_inject_vabt(vcpu);
 		return 1;
 	}

       After the host kernel correctly handle the synchronous external abort, the sea_status
       will return 0, so the code logical will be continue go-no, whether it is better directly return
       after correctly handle the SEA? such as below.

	if (unlikely(!is_iabt && kvm_vcpu_dabt_isextabt(vcpu)) && sea_status) {
  		kvm_inject_vabt(vcpu);
  		return 1;
  	} else
                return 1;

 
-	fault_ipa = kvm_vcpu_get_fault_ipa(vcpu);
-
 	trace_kvm_guest_fault(*vcpu_pc(vcpu), kvm_vcpu_get_hsr(vcpu),
 			      kvm_vcpu_get_hfar(vcpu), fault_ipa);
 
-	/* Check the stage-2 fault is trans. fault or write fault */
-	fault_status = kvm_vcpu_trap_get_fault_type(vcpu);
 	if (fault_status != FSC_FAULT && fault_status != FSC_PERM &&