On Thu, May 14, 2015 at 10:24:15AM +0200, Paolo Bonzini wrote: > > > On 13/05/2015 18:14, Michael S. Tsirkin wrote: > > > - AFAICS, there's no easy way to add transport-specific subsections - > > > and simply adding config_vector in ccw would break compatibility > > > > subsections break compatibility too. The only way around that is to set > > a flag to skip migrating config_vector for old machine types. > > That's expected. Subsections break compatibility because sometimes > breaking migration is better than leaving a broken guest after migration. > > Paolo
Right, and what happens is that some devices work kind of okay without config interrupts? Christian - is this why you are trying to preserve the broken behaviour for cross-version migration? -- MST
