tree 26f66b7da5a2883cc4049e838f4a1fb75ef604aa
parent 48a3e950f4cee6a345ffbe9baf599f1e9a54c479
author Cornelia Huck <cornelia.huck@de.ibm.com> 1356013930 +0100
committer Marcelo Tosatti <mtosatti@redhat.com> 1357595621 -0200

KVM: s390: In-kernel handling of I/O instructions.

Explicitely catch all channel I/O related instructions intercepts
in the kernel and set condition code 3 for them.

This paves the way for properly handling these instructions later
on.

Note: This is not architecture compliant (the previous code wasn't
either) since setting cc 3 is not the correct thing to do for some
of these instructions. For Linux guests, however, it still has the
intended effect of stopping css probing.

Reviewed-by: Marcelo Tosatti <mtosatti@redhat.com>
Reviewed-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>