[libvirt] [RFC] Explicit boot device ordering

Hi, I'm working on $SUBJ and I can't decide on XML representation of that. The goal is to let users specify an ordered list of devices to boot from, e.g., 2nd NIC, 1st NIC, 1st CD-ROM, 2nd IDE disk. We already have boot elements in /domain/os so we could make use of them or we could add a boot element inside device elements. So for the first case, we could have something like <os> <boot target='net1'/> <boot target='net0'/> <boot target='hdc'/> <boot target='hdb'/> <os> Where target attributes would match /domain/devices/*/target@dev For the second case, appropriate devices would contain <boot order='n'/> elements. Personally I like the first option more since it is very easy to change boot order in that case and the whole boot list is co-located at a single place in domain XML. Do you feel the same or do you even have a better solution in your mind? Jirka