vfio-ccw: Introduce a new CRW region

This region provides a mechanism to pass a Channel Report Word
that affect vfio-ccw devices, and needs to be passed to the guest
for its awareness and/or processing.

The base driver (see crw_collect_info()) provides space for two
CRWs, as a subchannel event may have two CRWs chained together
(one for the ssid, one for the subchannel).  As vfio-ccw will
deal with everything at the subchannel level, provide space
for a single CRW to be transferred in one shot.

Signed-off-by: Farhan Ali <[email protected]>
Signed-off-by: Eric Farman <[email protected]>
Reviewed-by: Cornelia Huck <[email protected]>
Message-Id: <[email protected]>
[CH: added padding to ccw_crw_region]
Signed-off-by: Cornelia Huck <[email protected]>

0 files changed, 0 insertions, 0 deletions