tree 3168e13812bb9110be073849089f8936df750cd1
parent 2c26d1d23abd9a67d056c95a0823132a71edc477
author David Hildenbrand <dahi@linux.vnet.ibm.com> 1462866191 +0200
committer Christian Borntraeger <borntraeger@de.ibm.com> 1465553250 +0200

KVM: s390: pfmf: support conditional-sske facility

We already indicate that facility but don't implement it in our pfmf
interception handler. Let's add a new storage key handling function for
conditionally setting the guest storage key.

As we will reuse this function later on, let's directly implement returning
the old key via parameter and indicating if any change happened via rc.

Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>