vfio-ccw: support async command subregion
commit8fadea24de4ef83dd2db3a9cd06b384fd820b9db
authorCornelia Huck <cohuck@redhat.com>
Tue, 7 May 2019 15:47:33 +0000 (7 17:47 +0200)
committerCornelia Huck <cohuck@redhat.com>
Mon, 24 Jun 2019 15:27:57 +0000 (24 17:27 +0200)
treeaab722dbd72a8690a2cc024a879cd95802873656
parentb5e89f044dea477cef0f8bf5da52035369d95157
vfio-ccw: support async command subregion

A vfio-ccw device may provide an async command subregion for
issuing halt/clear subchannel requests. If it is present, use
it for sending halt/clear request to the device; if not, fall
back to emulation (as done today).

Reviewed-by: Farhan Ali <alifm@linux.ibm.com>
Message-Id: <20190613092542.2834-1-cohuck@redhat.com>
Reviewed-by: Eric Farman <farman@linux.ibm.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
hw/s390x/css.c
hw/s390x/s390-ccw.c
hw/vfio/ccw.c
include/hw/s390x/css.h
include/hw/s390x/s390-ccw.h