[libvirt] Question about virtio-pci in Aarch64

Hi Cole && All, Nice meeting you in the libvirt mail-list. Greetings from Linaro !!! I am Kevin Zhao from Linaro and working for OpenStack on Aarch64. Nowadays I find that the default "virtio" bus is "virtio-mmio" , not "virtio-pci". Since virtio-mmio do not has the host plugged function , something is wrong with the function in OpenStack Nova. Then I search and find some mail information as belows by Cole :-) 1) https://www.redhat.com/archives/libvir-list/2015-December/msg00217.html 2) https://www.redhat.com/archives/libvir-list/2016-March/msg00167.html I see some efforts have been doing by you. Really thanks for your efforts for Aarch64. And I have some small questions. 1. Is Libvirt planning to replace the default virtio-mmio to virtio-pci for Aarch64? 2. If not , how can I change the xml file(generated by Virsh) for virtio-pci so that Qemu can recognize it ? Really big thanks for your help. Looking forwards to your response! Best Regards, Kevin Zhao