[libvirt] libvirt support for hot plugging multifunction PCI devices to KVM guests

[Nandini Chandra]

I'd like to understand where libvirt is with regards to supporting hot 
plugging of multifunction PCI devices to a KVM guest.

http://www.redhat.com/archives/libvir-list/2011-December/msg00621.html

According to the above thread,the --multifunction option can be 
specified with the virsh attach-disk command.What purpose does this 
option serve?

Thanks,
Nandini Chandra