Hi Sheng, So for guest INTX interrupts the host interrupt is reenabled on ack from the guest, which is nice. Now for guest MSI interrupts it keeps reenabling the interrupt as fast as the work handler can run. Can you explain why it works this way? Why not disable interrupts on the host in all cases and only reenable on ack? Thanks -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html