On Tue, Feb 01, 2022 at 04:01:06PM -0700, Alex Williamson wrote:

Agreed that v1 migration TYPE/SUBTYPE should live in infamy as
reserved, but I'm not sure why we need to make the rest of it a big
complicated problem.  On one hand, leaving stubs for the necessary
structure and macros until QEMU gets updated doesn't seem so terrible.
Nor actually does letting the next QEMU header update cause build
breakages, which would probably frustrate the person submitting that
update, but it's not like QEMU hasn't done selective header updates in
the past.  The former is probably the more friendly approach if we
don't outrage someone in the kernel community in the meantime.

So lets drop the removal patch and keep the V1 rename, it is easy for
qemu to follow along with this.

Sometime later we can purge all the dead things from the header, eg
the POWERNV stuff we left behind last year as well.

Thanks,
Jason