linux/drivers/s390
Farhan Ali d8cac29b1d 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 <alifm@linux.ibm.com>
Signed-off-by: Eric Farman <farman@linux.ibm.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Message-Id: <20200505122745.53208-7-farman@linux.ibm.com>
[CH: added padding to ccw_crw_region]
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
2020-06-03 11:27:43 +02:00
..
block s390/dasd: remove IOSCHED_DEADLINE from DASD Kconfig 2020-04-17 08:05:27 -06:00
char s390: use fallthrough; 2020-03-25 12:39:37 +01:00
cio vfio-ccw: Introduce a new CRW region 2020-06-03 11:27:43 +02:00
crypto s390/ap: introduce new ap function ap_get_qdev() 2020-05-20 10:22:51 +02:00
net s390/cio, s390/qeth: cleanup PNSO CHSC 2020-05-28 12:21:55 +02:00
scsi SCSI misc on 20200410 2020-04-10 12:21:11 -07:00
virtio virtio/s390: fix race on airq_areas[] 2019-07-26 13:36:18 +02:00
Makefile s390: remove pointless drivers-y in drivers/s390/Makefile 2019-09-16 13:21:51 +02:00