Re: [Qemu-stable] [Qemu-devel] [PATCH 1/4] configure: Add --enable-migration-from-qemu-kvm

[Michael Tokarev]

20.02.2013 02:39, Cole Robinson wrote:
> This switch will turn on all the migration compat bits needed to
> perform migration from qemu-kvm to qemu. It's just a stub for now.
> 
> This compat will break incoming migration from qemu < 1.3, but for
> distros where qemu-kvm was the only shipped package for years it's
> not a big loss (and I don't know any way to avoid it).

Actually I think it is relatively easy to support migration from BOTH
qemu and qemu-kvm.  By adding a _runtime_ command-line switch (such as
--qemu-kvm-compat, which has been already mentioned in other context),
which modifies that migration stuff (machine definitions) in a reasonable
way.  It can be done based on this patchset I guess (when it will be
polished and proven to work well).  And after that is done, this
configure option can go away.

How do you guys think?

Thanks!

/mjt