vfio: ccw: realize VFIO_DEVICE_RESET ioctl

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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>

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Dong Jia Shi 2017-03-17 04:17:37 +01:00 • committed by Cornelia Huck

parent e01bcdd613

commit 83d1193a96

1 changed files with 33 additions and 14 deletions

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47

drivers/s390/cio/vfio_ccw_ops.c

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