Re: [Qemu-devel] [PATCH 0/3] Migrate with destination version

[Paolo Bonzini]

Il 02/06/2014 15:50, Dr. David Alan Gilbert ha scritto:
> However, it gets trickier since the destination libvirt has to know to send
> the version information to the source; so we can only use this trick between
> versions where the libvirt on both ends knows about it; so if we suddenly hit
> a compatibility issue where we need it then we'd have to update libvirt on both
> sides, which is too late.
>
> So putting this in now, and getting it into libvirt means everyone has the info.

It also means we have a higher risk of getting it wrong, and having to 
do the work twice.

Paolo