virtio/s390: support READ_STATUS command for virtio-ccw
As virtio-1 introduced the possibility of the device manipulating the status byte, revision 2 of the virtio-ccw transport introduced a means of getting the status byte from the device via READ_STATUS. Let's wire it up for revisions >= 2 and fall back to returning the stored status byte if not supported. Signed-off-by:Pierre Morel <pmorel@linux.vnet.ibm.com> Signed-off-by:
Cornelia Huck <cornelia.huck@de.ibm.com>
parent
47a4c49a
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