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3 Commits

Author SHA1 Message Date
Cornelia Huck
8457fdfeb1 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>
 2019-03-06 11:19:33 -05:00
David Hildenbrand
ffad018cc0 KVM: s390: add documentation for diag 501 
Added documentation for diag 501, stating that no subfunctions are provided and
no parameters are used.

Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
 2014-04-22 13:24:51 +02:00
Cornelia Huck
d9101fca3d KVM: s390: diagnose call documentation 
Add some further documentation on the DIAGNOSE calls we support.

Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
 2013-12-11 19:03:52 +01:00