s390/mm: Add huge pmd storage key handling

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Storage keys for guests with huge page mappings have to be managed in
hardware. There are no PGSTEs for PMDs that we could use to retain the
guests's logical view of the key.

Signed-off-by: Janosch Frank <frankja@linux.vnet.ibm.com>
Reviewed-by: David Hildenbrand <david@redhat.com>

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Janosch Frank 2018-07-13 11:28:28 +01:00

parent 3afdfca698

commit 637ff9efe5

1 changed files with 98 additions and 10 deletions

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arch/s390/mm/pgtable.c

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