linux-kernel - Re: [PATCH v3] zcrypt: handle AP Info notification from CHSC SEI command

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Message-Id: <alpine.LFD.2.21.1903111656170.8196@schleppi>
Date:   Mon, 11 Mar 2019 16:57:00 +0100 (CET)
From:   Sebastian Ott <sebott@...ux.ibm.com>
To:     Tony Krowiak <akrowiak@...ux.ibm.com>
cc:     linux-s390@...r.kernel.org, linux-kernel@...r.kernel.org,
        freude@...ibm.com, borntraeger@...ibm.com, cohuck@...hat.com,
        pmorel@...ux.vnet.ibm.com, pasic@...ux.vnet.ibm.com,
        akrowiak@...ux.vnet.ibm.com, oberpar@...ux.ibm.com
Subject: Re: [PATCH v3] zcrypt: handle AP Info notification from CHSC SEI
 command

On Mon, 11 Mar 2019, Tony Krowiak wrote:
> On 2/18/19 12:01 PM, Tony Krowiak wrote:
> > The current AP bus implementation periodically polls the AP configuration
> > to detect changes. When the AP configuration is dynamically changed via the
> > SE or an SCLP instruction, the changes will not be reflected to sysfs until
> > the next time the AP configuration is polled. The CHSC architecture
> > provides a Store Event Information (SEI) command to make notification of an
> > AP configuration change. This patch introduces a handler to process
> > notification from the CHSC SEI command by immediately kicking off an AP bus
> > scan-after-event.
> 
> Ping

Applied.