linux-kernel - [PATCH v2 0/7] s390: vfio-ap: dynamic configuration support

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Message-Id: <1556918073-13171-1-git-send-email-akrowiak@linux.ibm.com>
Date:   Fri,  3 May 2019 17:14:26 -0400
From:   Tony Krowiak <akrowiak@...ux.ibm.com>
To:     linux-s390@...r.kernel.org, linux-kernel@...r.kernel.org,
        kvm@...r.kernel.org
Cc:     freude@...ux.ibm.com, borntraeger@...ibm.com, cohuck@...hat.com,
        frankja@...ux.ibm.com, david@...hat.com, schwidefsky@...ibm.com,
        heiko.carstens@...ibm.com, pmorel@...ux.ibm.com,
        pasic@...ux.ibm.com, alex.williamson@...hat.com,
        kwankhede@...dia.com, Tony Krowiak <akrowiak@...ux.ibm.com>
Subject: [PATCH v2 0/7] s390: vfio-ap: dynamic configuration support

This patch series extends the crypto adapter pass-through support to 
provide safeguards against inadvertent sharing of AP resources between
guests and/or the host, and to implement more of the s390 AP
architecture related to provisioning and dynamic configuration of
AP resources.

Change log v2->v3:
-----------------
* Allow guest access to an AP queue only if the queue is bound to
  the vfio_ap device driver.

* Removed the patch to test CRYCB masks before taking the vCPUs
  out of SIE. Now checking the shadow CRYCB in the vfio_ap driver.

Change log v1->v2:
-----------------
* Removed patches preventing root user from unbinding AP queues from 
  the vfio_ap device driver
* Introduced a shadow CRYCB in the vfio_ap driver to manage dynamic 
  changes to the AP guest configuration due to root user interventions
  or hardware anomalies.

Tony Krowiak (7):
  s390: vfio-ap: wait for queue empty on queue reset
  s390: vfio-ap: maintain a shadow of the guest's CRYCB
  s390: vfio-ap: sysfs interface to display guest CRYCB
  s390: vfio-ap: allow assignment of unavailable AP resources to mdev
    device
  s390: vfio-ap: allow hot plug/unplug of AP resources using mdev device
  s390: vfio-ap: handle bind and unbind of AP queue device
  s390: vfio-ap: update documentation

 Documentation/s390/vfio-ap.txt        | 191 +++++++----
 drivers/s390/crypto/vfio_ap_drv.c     |  12 +-
 drivers/s390/crypto/vfio_ap_ops.c     | 612 ++++++++++++++++++++++------------
 drivers/s390/crypto/vfio_ap_private.h |   4 +
 4 files changed, 536 insertions(+), 283 deletions(-)

-- 
2.7.4