You probably want to send this to et-mgmt-list, which is where virt-manager development happens,
OK. For this, I tried to hear in et-mgmt-list.
I sent an e-mail last month with proposals for doing this within libvirt. I put up all of the information I have in the libvirt wiki here:
Thank you for your information. I see above libvirt wiki and I have a few idea adding checks within libvirt. These point of view are Guest and Host sanity in BASIC CHECKS. How about this points ? 1)Guest sanity is checking whether already existing or not on the destination. Otherwise the uniqueness of the domain(UUID, name) are lost. * I think that it is right to check this in libvirt. How do you think this ? 2)Host sanity is checking whether a migration flag is ON at each virtualization. Thanks, Shigeki Sakamoto.