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(parent: 59f3397) | patch
virtio-ccw: diag 500 may return a negative cookie
authorCornelia Huck <cohuck@redhat.com>
Mon, 21 Jan 2019 12:19:42 +0000 (13:19 +0100)
committerMichael S. Tsirkin <mst@redhat.com>
Wed, 6 Mar 2019 16:19:33 +0000 (11:19 -0500)
commit8457fdfeb16d307b2acd502cb9224d03174294d2
treef2c824b52f777e2f747125a1a62848f5ce93e3d9tree | snapshot
parent59f3397ca7d3aa946a67d341d8126614b2f82b2acommit | diff
virtio-ccw: diag 500 may return a negative cookie

If something goes wrong in the kvm io bus handling, the virtio-ccw
diagnose may return a negative error value in the cookie gpr.

Document this.

Reviewed-by: Halil Pasic <pasic@linux.ibm.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Documentation/virtual/kvm/s390-diag.txt diff | blob | history
Domain: System / Kernel;