Christian Borntraeger 97ca7bfc19 s390/mm: set change and reference bit on lazy key enablement ...

When we enable storage keys for a guest lazily, we reset the ACC and F
values. That is correct assuming that these are 0 on a clear reset and
the guest obviously has not used any key setting instruction.

We also zero out the change and reference bit. This is not correct as
the architecture prefers over-indication instead of under-indication
for the keyless->keyed transition.

This patch fixes the behaviour and always sets guest change and guest
reference for all guest storage keys on the keyless -> keyed switch.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: Claudio Imbrenda <imbrenda@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

2017-07-13 11:28:29 +02:00

..

cmm.c

s390: mm: Audit and remove any unnecessary uses of module.h

2017-02-17 07:40:35 +01:00

dump_pagetables.c

s390/mm: implement 5 level pages tables

2017-06-12 16:25:54 +02:00

extmem.c

s390: mm: Audit and remove any unnecessary uses of module.h

2017-02-17 07:40:35 +01:00

fault.c

s390/fault: use _ASCE_ORIGIN instead of PAGE_MASK

2017-06-12 16:25:59 +02:00

gmap.c

s390/mm: add __rcu annotations

2017-06-12 16:25:55 +02:00

gup.c

s390/mm: implement 5 level pages tables

2017-06-12 16:25:54 +02:00

hugetlbpage.c

mm/hugetlb: add size parameter to huge_pte_offset()

2017-07-06 16:24:34 -07:00

init.c

mm, memory_hotplug: replace for_device by want_memblock in arch_add_memory

2017-07-06 16:24:32 -07:00

maccess.c

s390/maccess: reduce stnsm instructions

2016-02-17 09:05:04 +01:00

Makefile

s390/extable: use generic search and sort routines

2016-03-22 15:36:02 -07:00

mem_detect.c

s390: mm: Audit and remove any unnecessary uses of module.h

2017-02-17 07:40:35 +01:00

mmap.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

2017-07-03 15:39:36 -07:00

page-states.c

s390/kvm: Add PGSTE manipulation functions

2017-04-20 13:33:08 +02:00

pageattr.c

s390/mm: implement 5 level pages tables

2017-06-12 16:25:54 +02:00

pgalloc.c

s390/mm: implement 5 level pages tables

2017-06-12 16:25:54 +02:00

pgtable.c

s390/mm: set change and reference bit on lazy key enablement

2017-07-13 11:28:29 +02:00

vmem.c

s390/mm: implement 5 level pages tables

2017-06-12 16:25:54 +02:00