Hi, > libvirt support for these in the domain xml syntax goes into > "nice-to-have" category, but I can equally well live without them and > use the <qemu:*> tags to set them if needed.
For anyone playing with this: The magic words to flip the modern switch
for virtio-pci devices globally via libvirt domain xml are:
<qemu:commandline>
<qemu:arg value='-global'/>
<qemu:arg value='virtio-pci.disable-modern=off'/>
</qemu:commandline>
HTH,
Gerd
