KVM: s390: Clear storage keys

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page_table_reset_pgste() already does a complete page table walk to
reset the pgste. Enhance it to initialize the storage keys to
PAGE_DEFAULT_KEY if requested by the caller. This will be used
for lazy storage key handling. Also provide an empty stub for
!CONFIG_PGSTE

Lets adopt the current code (diag 308) to not clear the keys.

Signed-off-by: Dominik Dingel <dingel@linux.vnet.ibm.com>
Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>

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Dominik Dingel 2014-01-29 16:02:32 +01:00 • committed by Christian Borntraeger

parent 65eef33550

commit d4cb11340b

3 changed files with 37 additions and 15 deletions

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3

arch/s390/include/asm/pgalloc.h

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6

arch/s390/kvm/diag.c

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43

arch/s390/mm/pgtable.c

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