Mdevctl requires a way to atomically query and atomically update a vfio-ap
mdev's current state. This patch set creates the queue_configuration sysfs
attribute. This new attribute allows reading and writing an mdev's entire
state in one go. If a newly written state is invalid for any reason the entire
state is rejected and the target mdev remains unchanged.
Jason J. Herne (3):
s390/ap: Externalize AP bus specific bitmap reading function
s390/vfio-ap: Add sysfs attr, queue_configuration, to export mdev
state
s390/vfio-ap: Add write support to sysfs attr ap_config
Documentation/arch/s390/vfio-ap.rst | 27 ++++
drivers/s390/crypto/ap_bus.c | 13 +-
drivers/s390/crypto/ap_bus.h | 22 +++
drivers/s390/crypto/vfio_ap_ops.c | 213 +++++++++++++++++++++++---
drivers/s390/crypto/vfio_ap_private.h | 6 +-
5 files changed, 248 insertions(+), 33 deletions(-)
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2.41.0
