Anthony Liguori <aligu...@us.ibm.com> wrote: > As Paolo points out, the migration protocol is ambiguous when using > subsections > today. That means that even if we preserve subsections and change the > protocol > accordingly, the old protocol w/subsections is still ambiguous. > > Remove subsection usage and bump any device using subsections. This > effectively > eliminates the amiguouity and allows for a clean transition to a new protocol > with unambiguous subsections.
If you are doing that, you can just remove the old protocol altogether. You are missing also ide on your patch. If we remove migration from any machine that uses ide + floppy, we can just ban migration from old versions altogether. Only platform that ever cares about forward compatiblity is pc's. And pc's always use floppies on qemu. I still think that improving the "subsection" match is the way to go for 0.15. Later, Juan.
