stable releases

[Michael Tokarev]

Hi!

For a few qemu major releases already, we did not have any stable minor 
releases.
I'd love to change that, in order to consolidate efforts and to make better
software in the end.  But I need some (hopefully minor) help here.

I collected changes from qemu/master which apparently should go to -stable.
Published at git://isrv.corpit.ru/qemu.git , branch stable-7.2-staging
(probably should publish it on github or gitlab).
This contains stuff which I use on Debian in qemu package, which is based
on 7.2 version now.  The last 18 patches are not in Debian package yet,
going to push it today or tomorrow.

If nothing, this can be used as a base for actual 7.2.1 stable release,
maybe with more changes added (or some changes removed).

The help which I need is to be able to run some wider testing. Debian is
a relatively good testbed, and it is used by qemu already in terms of
bullseye-backports to run other tests, so it should be good, but I'd
love to have wider coverage still. Maybe some CI stuff which qemu has
for master, if not only just before actual release.

And as usual, this needs help in picking up changes which should go to
stable. But this is something which is always needed anyway.

Let's resurrect qemu-stable :)

Thanks,

/mjt