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From: Cornelia Huck <cohuck@redhat.com>
To: Eric Farman <farman@linux.ibm.com>, Halil Pasic <pasic@linux.ibm.com>
Cc: linux-s390@vger.kernel.org, kvm@vger.kernel.org
Subject: Re: [PATCH RFC 1/1] vfio-ccw: add some logging
Date: Fri, 23 Aug 2019 13:48:45 +0200
Message-ID: <20190823134845.1f7ce449.cohuck@redhat.com> (raw)
In-Reply-To: <20190816151505.9853-2-cohuck@redhat.com>

On Fri, 16 Aug 2019 17:15:05 +0200
Cornelia Huck <cohuck@redhat.com> wrote:

> Usually, the common I/O layer logs various things into the s390
> cio debug feature, which has been very helpful in the past when
> looking at crash dumps. As vfio-ccw devices unbind from the
> standard I/O subchannel driver, we lose some information there.
> 
> Let's introduce some vfio-ccw debug features and log some things
> there. (Unfortunately we cannot reuse the cio debug feature from
> a module.)
> 
> Signed-off-by: Cornelia Huck <cohuck@redhat.com>
> ---
>  drivers/s390/cio/vfio_ccw_drv.c     | 50 ++++++++++++++++++++++++++--
>  drivers/s390/cio/vfio_ccw_fsm.c     | 51 ++++++++++++++++++++++++++++-
>  drivers/s390/cio/vfio_ccw_ops.c     | 10 ++++++
>  drivers/s390/cio/vfio_ccw_private.h | 17 ++++++++++
>  4 files changed, 124 insertions(+), 4 deletions(-)

Queued.

      parent reply index

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-16 15:15 [PATCH RFC 0/1] s390dbf logging for vfio-ccw Cornelia Huck
2019-08-16 15:15 ` [PATCH RFC 1/1] vfio-ccw: add some logging Cornelia Huck
2019-08-21 15:54   ` Eric Farman
2019-08-23 10:44     ` Cornelia Huck
2019-08-23 11:48   ` Cornelia Huck [this message]

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