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Re: [qemu-s390x] [PATCH 2/2] s390x/ccw: make sure all ccw devices are pr

From: Cornelia Huck
Subject: Re: [qemu-s390x] [PATCH 2/2] s390x/ccw: make sure all ccw devices are properly reset
Date: Tue, 8 May 2018 16:01:17 +0200

On Tue, 8 May 2018 15:42:17 +0200
Halil Pasic <address@hidden> wrote:

> On 05/07/2018 05:51 PM, Cornelia Huck wrote:
> > Thomas reported that the subchannel for a  3270 device that ended up
> > in a broken state (status pending even though not enabled) did not
> > get out of that state even after a reboot (which involves a subsytem
> > reset). The reason for this is that the 3270 device did not define
> > a reset handler.
> > 
> > Let's fix this by introducing a base reset handler (set up for all
> > ccw devices) that resets the subchannel and have virtio-ccw call
> > its virtio-specific reset procedure in addition to that.
> > 
> > Reported-by: Thomas Huth <address@hidden>
> > Suggested-by: Christian Borntraeger <address@hidden>
> > Signed-off-by: Cornelia Huck <address@hidden>  
> Reviewed-by: Halil Pasic <address@hidden>
> The 'all' from the subject is actually 'all except maybe vfio-ccw'

Yeah, but as it overwrites the default handler, it's on its own :)

Thanks for your review!

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