Re: [PATCH v3 00/30] qapi/qom: QAPIfy --object and object-add

[Peter Krempa]

On Fri, Mar 12, 2021 at 09:46:54 +0100, Paolo Bonzini wrote:
> On 12/03/21 09:14, Markus Armbruster wrote:
> > Paolo Bonzini <pbonzini@redhat.com> writes:
> > 
> > > On 11/03/21 15:08, Markus Armbruster wrote:
> > > > > I would rather keep the OptsVisitor here.  Do the same check for JSON
> > > > > syntax that you have in qobject_input_visitor_new_str, and whenever
> > > > > you need to walk all -object arguments, use something like this:
> > > > > 
> > > > >       typedef struct ObjectArgument {
> > > > >           const char *id;
> > > > >           QDict *json;    /* or NULL for QemuOpts */
> > > > >           QSIMPLEQ_ENTRY(ObjectArgument) next;
> > > > >       }
> > > > > 
> > > > > I already had patches in my queue to store -object in a GSList of
> > > > > dictionaries, changing it to use the above is easy enough.
> > > > 
> > > > I think I'd prefer following -display's precedence.  See my reply to
> > > > Kevin for details.
> > > 
> > > Yeah, I got independently to the same conclusion and posted patches
> > > for that.  I was scared that visit_type_ObjectOptions was too much for
> > > OptsVisitor but it seems to work...
> > 
> > We have reason to be scared.  I'll try to cover this in my review.
> 
> Yes, it's a good reason to possibly even delay those 3 patches to 6.1.

Is there a chance we could get the json syntax for -object for now? I
think it would simplify libvirt's code a bit and sidestep the issue of
converting the already existing parameters from JSON form we have into
the commandline form.