KVM: s390: pfmf: fix end address calculation

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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>

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David Hildenbrand 2016-04-13 10:09:47 +02:00 • committed by Christian Borntraeger

parent fe69eabf8d

commit 6164a2e90a

1 changed files with 9 additions and 11 deletions

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arch/s390/kvm/priv.c

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