Re: [Qemu-devel] [PATCH 04/10] pcspk: adding vmstate for save/restore

[Paolo Bonzini]

Il 10/09/2014 14:02, Michael S. Tsirkin ha scritto:
> That's not too hard: we need two types that only
> differ in the vmstate.
> Use the correct one to create the device depending
> on the pc type.
> 
> Put in that light, we definitely did create new
> devices while keeping old ones around for
> compatibility.

Do you have an example?  I can think of one that we did in RHEL (hda)
but it was never upstream.

Paolo