Re: [Qemu-devel] Re: [PATCH 0/4] Machine config files

[Avi Kivity]

On 07/06/2009 07:44 PM, Michael S. Tsirkin wrote:
> > Slight change: instead of serializing into a tree, have a qdev callback
> > which generates an add event that can be sent over the wire.  While
> > migrating, additional hotplug simply call the same callback and the
> > hotplug is migrated in real time.
> >      
>
> IOW, each device just needs to record where it is in the tree.
>    

There is no easy way to do that.  Instead, each bus records its 
component devices.

> The tree can be then reconstructed by each driver
> finding the parent bus and attaching the device to it.
>    

With a hierarhical save this is much more natural.

--
I have a truly marvellous patch that fixes the bug which this
signature is too narrow to contain.