Re: [libvirt] [PATCH v3 00/17] qemu: virtio-{non-}transitional support

v2 libvirt patches: https://www.redhat.com/archives/libvir-list/2019-January/msg00877.html v1 libvirt patches: https://www.redhat.com/archives/libvir-list/2019-January/msg00593.html Previous incomplete RFC here: https://www.redhat.com/archives/libvir-list/2019-January/msg00346.html qemu patches, queued for qemu 4.0.0: https://lists.gnu.org/archive/html/qemu-devel/2018-12/msg00923.html Previous libvirt discussion around this: https://www.redhat.com/archives/libvir-list/2018-August/msg01073.html Changes since v2: * Some prep patches merged * filesystem model dropped the -9p naming, now uses virtio-{non-}transitional like other devices * Now uses a single capability QEMU_CAPS_VIRTIO_PCI_NON_TRANSITIONAL which is set whenever any of the -transitional or -non-transitional devices are present. * Add a formatdomain section 'Virtio transitional devices' and reference it from each relevant device section * if virtio-transitional specified, and qemu is too old but has the disable_X options, convert it to explicit disable-legacy=off,disable-modern=off * Misc small changes pointed out in review