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(parent: e01bcdd) | patch
vfio: ccw: realize VFIO_DEVICE_RESET ioctl
authorDong Jia Shi <bjsdjshi@linux.vnet.ibm.com>
Fri, 17 Mar 2017 03:17:37 +0000 (04:17 +0100)
committerCornelia Huck <cornelia.huck@de.ibm.com>
Fri, 31 Mar 2017 10:55:08 +0000 (12:55 +0200)
commit83d1193a96dc78576c15f93cd70e0558763a85b3
tree3d7e58feeab5cfbeb2f7f42101055b4b3c4e515etree | snapshot
parente01bcdd61320c91c826376e0a7dd96ef8e85dd18commit | diff
vfio: ccw: realize VFIO_DEVICE_RESET ioctl

Introduce VFIO_DEVICE_RESET ioctl for vfio-ccw to make it possible
to hot-reset the device.

We try to achieve a reset by first disabling the subchannel and
then enabling it again: this should clear all state at the subchannel.

Signed-off-by: Dong Jia Shi <bjsdjshi@linux.vnet.ibm.com>
Message-Id: <20170317031743.40128-11-bjsdjshi@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
drivers/s390/cio/vfio_ccw_ops.c diff | blob | history
Domain: System / Kernel;