linux-kernel - [PATCH v2 0/1] s390: vfio_ap: link the vfio_ap devices to the vfio

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Message-Id: <1550513328-12646-1-git-send-email-pmorel@linux.ibm.com>
Date:   Mon, 18 Feb 2019 19:08:47 +0100
From:   Pierre Morel <pmorel@...ux.ibm.com>
To:     borntraeger@...ibm.com
Cc:     cohuck@...hat.com, linux-kernel@...r.kernel.org,
        linux-s390@...r.kernel.org, frankja@...ux.ibm.com,
        akrowiak@...ux.ibm.com, pasic@...ux.ibm.com, david@...hat.com,
        schwidefsky@...ibm.com, heiko.carstens@...ibm.com,
        freude@...ux.ibm.com
Subject: [PATCH v2 0/1] s390: vfio_ap: link the vfio_ap devices to the vfio_ap bus subsystem

This is the second version of this patch.
The first version was part of a patch series on VFIO AP IRQ.

The goal of this patch is to standardize the device-driver interface
for the VFIO_AP ap_matrix_device to satisfy user-land tools working on
hot-plug (UDEV/LIBVIRT).

Christian Borntraeger reported libvirt looping when a matrix device
was available before the libvirt start.

Marc Hartmayer debugged this and circumvented this in libvirt:
https://www.redhat.com/archives/libvir-list/2019-February/msg00837.html


Pierre Morel (1):
  s390: vfio_ap: link the vfio_ap devices to the vfio_ap bus subsystem

 drivers/s390/crypto/vfio_ap_drv.c     | 48 +++++++++++++++++++++++++++++------
 drivers/s390/crypto/vfio_ap_ops.c     |  4 +--
 drivers/s390/crypto/vfio_ap_private.h |  1 +
 3 files changed, 43 insertions(+), 10 deletions(-)

-- 
2.7.4