Re: [PATCH v2 10/10] hmp: Deprecate 'singlestep' member of StatusInfo

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* Peter Maydell (peter.maydell@xxxxxxxxxx) wrote:
> On Wed, 5 Apr 2023 at 15:56, Dr. David Alan Gilbert <dgilbert@xxxxxxxxxx> wrote:
> >
> > * Peter Maydell (peter.maydell@xxxxxxxxxx) wrote:
> > > I think on balance I would go for:
> > >  * remove (ie deprecate-and-drop) 'singlestep' from the QMP struct,
> > >    rather than merely renaming it
> > >  * if anybody comes along and says they want to do this via QMP,
> > >    implement Paolo's idea of putting the accelerator object
> > >    somewhere they can get at it and use qom-get/qom-set on it
> > >    [My guess is this is very unlikely: nobody's complained so
> > >    far that QMP doesn't permit setting 'singlestep'; and
> > >    wanting read without write seems even more marginal.]
> > >  * keep the HMP commands, but have both read and write directly
> > >    talk to the accel object. I favour splitting the 'read'
> > >    part out into its own 'info one-insn-per-tb', for consistency
> > >    (then 'info status' matches the QMP query-status)
> >
> > If it's pretty obscure, then the qom-set/get is fine; as long
> > as there is a way to do it, then just make sure in the commit
> > message you say what the replacement command is
> 
> The point is that there isn't a replacement way to do it
> *right now*, but that we have a sketch of how we'd do it if
> anybody showed up and really cared about it. I think the chances
> of that happening are quite close to zero, so I don't
> want to do the work to actually implement the mechanism
> on spec...

Sure, then just drop it.

Dave

> -- PMM
> 
-- 
Dr. David Alan Gilbert / dgilbert@xxxxxxxxxx / Manchester, UK




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