Re: [PATCH] Mark Multi-Process QEMU as Orphaned

["Daniel P. Berrangé" <berrange@redhat.com>]

On Fri, May 08, 2026 at 03:39:35PM +0100, Peter Maydell wrote:
> On Fri, 8 May 2026 at 15:29, John Levon <john.levon@nutanix.com> wrote:
> >
> > On Fri, May 08, 2026 at 02:21:37PM +0000, Jag Raman wrote:
> >
> > > diff --git a/MAINTAINERS b/MAINTAINERS
> > > index 0a90204ae9..ce2b494086 100644
> > > --- a/MAINTAINERS
> > > +++ b/MAINTAINERS
> > > @@ -4429,7 +4429,7 @@ F: tests/tcg/aarch64/system/semiheap.c
> > >  Multi-process QEMU
> > >  M: Elena Ufimtseva <elena.ufimtseva@oracle.com>
> > >  M: Jagannathan Raman <jag.raman@oracle.com>
> > > -S: Maintained
> > > +S: Orphan
> > >  F: docs/devel/multi-process.rst
> > >  F: docs/system/multi-process.rst
> > >  F: hw/pci-host/remote.c
> > >
> > > Thanks for the reminder, John!
> >
> > (Just for context, Cédric suggested this after my patch to update the
> > libvfio-user submodule for the compilation issues.)
> >
> > > I’ll send a PR shortly removing parts we are not longer using.
> >
> > QEMU maintainers can correct me, but I'd think it has to go through a
> > deprecation cycle first?
> 
> That's generally correct. Apart from features which are clearly
> unused because they were actually broken without anybody noticing,
> we have a deprecation cycle where we first list the feature
> in deprecated.rst; then it is in the deprecated state for
> that release and the following one, and can be finally
> removed in the one after that.
> 
> However in this case as I understand it the multiprocess
> feature has always been "experimental" (as marked by the
> machine and device names "x-remote", "x-pci-proxy-dev", etc
> having an "x-" prefix). So if we really don't think this is
> likely to be being used by anybody in practice I think the
> experimental state allows us to remove it without waiting.
> Dan, Paolo, what do you think ?

If it was always marked experimental, then we do not need to apply the
deprecation process, though the maintainers can choose to do so at their
discretion.

With regards,
Daniel
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