Re: [Qemu-devel] Re: Live migration protocol, device features, ABIs and other beasts

[Paolo Bonzini]

On 11/23/2009 09:26 AM, Gleb Natapov wrote:
> > > >  >I'd go with chunk instead of feature bits, specifying them like in
> > > >  >the PNG specification:
> > >
> > >  You mean, each device would have multiple sections?  We already use
> > >  chunks for each device state.
> > >
> Each device can send device info in multiple formats (each format with
> its own ID) and destination will choose the one it supports.

First of all, we'd need a mechanism to send _lengths_ of chunks.  This 
is especially important since there could be other consumers than QEMU 
for vm state data, and these may be interested only in few pieces of data.

Paolo