tree e228ebab5b999145ff8b018d43a979915c03bcae
parent fe69eabf8deb85ae8b2958830ea3b2911e332820
author David Hildenbrand <dahi@linux.vnet.ibm.com> 1460534987 +0200
committer Christian Borntraeger <borntraeger@de.ibm.com> 1465553248 +0200

KVM: s390: pfmf: fix end address calculation

The current calculation is wrong if absolute != real address. Let's just
calculate the start address for 4k frames upfront. Otherwise, the
calculated end address will be wrong, resulting in wrong memory
location/storage keys getting touched.

To keep low-address protection working (using the effective address),
we have to move the check.

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