Hi,
Doesn't work. If you have a qemu 0.11 machine, a virtio nic and your
guest uses MSI-X you simply can't migrate to qemu 0.10. End of story.
If you want to be able to migrate to 0.10 you have to start in 0.10
compat mode with MSI-X disabled. So IMHO it does makes sense to tie the
savevm format to -M pc-<version>.
cheers,
Gerd
MSI-X is an orthogonal issue, let's not mix it in.
It isn't. I was making that point with feature=MSI-X. The same
argument is true for any other feature: If $feature is new in qemu
$newversion and you are using it you can't migrate to qemu $oldversion
which hasn't $feature. The versioned machine types turn $feature in
$newversion, so migration to $oldversion could work.
cheers,
Gerd
