Re: [XEN PATCH] libxl: Fix device_add QMP calls with QEMU 9.2 and newer

[Maximilian Engelhardt <maxi@xxxxxxxxxxxxx>]

On Monday, 15 December 2025 15:41:02 CET Anthony PERARD wrote:
> On Mon, Dec 15, 2025 at 03:11:53PM +0100, Jan Beulich wrote:
> > On 15.12.2025 14:51, Anthony PERARD wrote:
> > > From: Anthony PERARD <anthony.perard@xxxxxxxxxx>
> > > 
> > > QEMU used to ignore JSON types and do conversion string <-> integer
> > > automatically for the command "device_add", but that was removed in
> > > QEMU 9.2 (428d1789df91 ("docs/about: Belatedly document tightening of
> > > QMP device_add checking")).
> > 
> > And older qemu accepts integers as well?
> 
> As the QEMU document explains about the removed feature is that they
> should. We already have two users of `device_add` which use integers for
> some arguments. And just to be sure, I've just tested with QEMU 8.0, the
> patch works fine.
> 
> Cheers,

Can this patch be picked for the stable branches? I'm in particular interested 
in 4.20 which is in Debian stable.

Thanks,
Maxi