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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
..
3270.ChangeLog Documentation: Use "while" instead of "whilst" 2018-11-20 09:30:43 -07:00
3270.rst docs: s390: convert docs to ReST and rename to *.rst 2019-06-11 09:48:14 +02:00
cds.rst docs: s390: convert docs to ReST and rename to *.rst 2019-06-11 09:48:14 +02:00
common_io.rst docs: s390: convert docs to ReST and rename to *.rst 2019-06-11 09:48:14 +02:00
config3270.sh
driver-model.rst docs: s390: convert docs to ReST and rename to *.rst 2019-06-11 09:48:14 +02:00
index.rst s390/pci: Documentation for zPCI 2020-04-28 13:49:47 +02:00
monreader.rst docs: s390: convert docs to ReST and rename to *.rst 2019-06-11 09:48:14 +02:00
pci.rst s390/pci: Documentation update for s390 PCI 2020-05-06 14:59:20 +02:00
qeth.rst docs: s390: convert docs to ReST and rename to *.rst 2019-06-11 09:48:14 +02:00
s390dbf.rst docs: s390: s390dbf: typos and formatting, update crash command 2019-07-05 13:42:24 +02:00
text_files.rst docs: s390: convert docs to ReST and rename to *.rst 2019-06-11 09:48:14 +02:00
vfio-ap.rst docs: s390: convert docs to ReST and rename to *.rst 2019-06-11 09:48:14 +02:00
vfio-ccw.rst vfio-ccw: Introduce a new CRW region 2020-06-03 11:27:43 +02:00
zfcpdump.rst Documentation/s390: Update / remove developerWorks web links 2020-05-20 10:22:51 +02:00