s390/css: handle CCW_FLAG_SKIP
commit85fa94e16927af2717093e5b8fe225206ec39e16
authorCornelia Huck <cohuck@redhat.com>
Mon, 6 May 2019 17:11:48 +0000 (6 19:11 +0200)
committerCornelia Huck <cohuck@redhat.com>
Fri, 17 May 2019 06:16:02 +0000 (17 08:16 +0200)
tree68e029690d90be5d0d9d7151a3a2b4a87cf99cec
parent1e3f9c69a42ab0365ac381035e501c94c411b007
s390/css: handle CCW_FLAG_SKIP

If a ccw has CCW_FLAG_SKIP set, and the command is of type
read, read backwards, or sense, no data should be written
to the guest for that command.

Reviewed-by: Eric Farman <farman@linux.ibm.com>
Message-Id: <20190516133327.11430-1-cohuck@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
hw/s390x/css.c
include/hw/s390x/css.h