s390x/virtio-hcall: Specification exception for illegal subcodes
commit77319f22635e3f0ef86730503b4d18dd9a833529
authorThomas Huth <thuth@linux.vnet.ibm.com>
Tue, 14 Jan 2014 12:32:23 +0000 (14 13:32 +0100)
committerChristian Borntraeger <borntraeger@de.ibm.com>
Thu, 27 Feb 2014 08:51:25 +0000 (27 09:51 +0100)
tree22f802500e646ea2466771544001845ffec33351
parentf2c55d1735175ab37ab9f69854460087112d2756
s390x/virtio-hcall: Specification exception for illegal subcodes

So far, the DIAG 500 hypervisor call was only setting -EINVAL in
R2 when a guest tried to call this function with an illegal subcode.
This patch now changes the behavior so that a specification exception
is thrown instead, since this is the common behavior of other DIAG
functions (and other CPU instructions) when being called with illegal
parameters.

Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
hw/s390x/s390-virtio-hcall.c
target-s390x/kvm.c