Hello,
On 3/28/2017 3:53 AM, gengdongjiu wrote:
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;
Yes, I will return after successful SEA handling in the next patch set.
Thanks,
Tyler
- 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 &&
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