On Tue, 2020-04-07 at 13:57 +0800, Jiatong Shen wrote: A better venue for this kind of question would be the libvirt-users mailing list, so please keep that in mind for next time :) We backport security fixes to older releases, but not features. So you would like to backport the feature yourself and build a Debian package out of the result? Be warned, that would probably end up being a massive amount of work, especially considering that you'd be targeting a 2+ years old version of libvirt. Can you really not simply install a newer package? libvirt has very strong backwards compatibility guarantees, so ideally nothing should break because of the update. -- Andrea Bolognani / Red Hat / Virtualization