tree 7dc7df9f07152940bbfb2ee1034a982f44b66682
parent 8ca2b376b47fff58f7ab6f16d86a66d4af3a2be2
author Xiao Feng Ren <renxiaof@linux.vnet.ibm.com> 1494982091 +0200
committer Cornelia Huck <cornelia.huck@de.ibm.com> 1495189741 +0200

s390x/css: ccw translation infrastructure

Implement a basic infrastructure of handling channel I/O instruction
interception for passed through subchannels:
1. Branch the code path of instruction interception handling by
   SubChannel type.
2. For a passed-through subchannel, issue the ORB to kernel to do ccw
   translation and perform an I/O operation.
3. Assign different condition code based on the I/O result, or
   trigger a program check.

Signed-off-by: Xiao Feng Ren <renxiaof@linux.vnet.ibm.com>
Signed-off-by: Dong Jia Shi <bjsdjshi@linux.vnet.ibm.com>
Message-Id: <20170517004813.58227-12-bjsdjshi@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>