virtio/s390: implement PM operations for virtio_ccw
Suspend/Resume to/from disk currently fails. Let us wire up the necessary callbacks. This is mostly just forwarding the requests to the virtio drivers. The only thing that has to be done in virtio_ccw itself is to re-set the virtio revision. Suggested-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Message-Id: <20171207141102.70190-2-borntraeger@de.ibm.com> Reviewed-by: David Hildenbrand <david@redhat.com> [CH: merged <20171218083706.223836-1-borntraeger@de.ibm.com> to fix !CONFIG_PM configs] Signed-off-by: Cornelia Huck <cohuck@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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