s390/mm: Abstract gmap notify bit setting

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Currently we use the software PGSTE bits PGSTE_IN_BIT and
PGSTE_VSIE_BIT to notify before an invalidation occurs on a prefix
page or a VSIE page respectively. Both bits are pgste specific, but
are used when protecting a memory range.

Let's introduce abstract GMAP_NOTIFY_* bits that will be realized into
the respective bits when gmap DAT table entries are protected.

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

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Janosch Frank 2018-07-13 11:28:18 +01:00

parent 5a045bb9c4

commit 2c46e974dd

2 changed files with 11 additions and 4 deletions

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4

arch/s390/include/asm/gmap.h

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11

arch/s390/mm/gmap.c

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