Re: [Qemu-devel] [PATCH 4/9] s390x: refactor error handling for SSCH and RSCH

[Dong Jia Shi <bjsdjshi@linux.vnet.ibm.com>]

* Halil Pasic <pasic@linux.vnet.ibm.com> [2017-09-06 00:30:58 +0200]:

[...]

> > 
> >> But I guess, I was afraid of somebody blaming me for this
> >> comment (such TODOs in production code are a bit strange -- what
> >> does it mean: we did not bother to figure it out?).
> > 
> > For one, the TODO is preexisting... and we really should remember to
> > figure out if there's something better rather than just drop the
> > comment.
> > 
> > (And I sure hope nobody is using vfio-ccw in production yet...)
> >
> Since blame says the TODO has been around since 2017-05-17
> let me have a critical look at it.
> 
> At a first glance I would say addressing exception for SSCH
> is not what we want: the only possibility I see for address
> exception for SSCH is due to the ORB address. But if that's
> the case we will never reach the code in question.
Agree.

> So I suppose we can do better.
As the comment said, I'm (still) in the state of 'wondering'.

> 
> Adding Ren. @Ren: Do you agree with my analysis. If you do,
> I could come up with a proposal what to do -- after some reading.
If you have a better idea, and time, why not? ;)

> 
> Regards,
> Halil

-- 
Dong Jia Shi