powerpc: introduce execute-only pkey

Browse source

This patch provides the implementation of execute-only pkey.
The architecture-independent layer expects the arch-dependent
layer, to support the ability to create and enable a special
key which has execute-only permission.

Acked-by: Balbir Singh <bsingharora@gmail.com>
Signed-off-by: Ram Pai <linuxram@us.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

...

This commit is contained in:

Ram Pai 2018-01-18 17:50:32 -08:00 • committed by Michael Ellerman

parent 06bb53b338

commit 5586cf61e1

3 changed files with 64 additions and 1 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

1

arch/powerpc/include/asm/book3s/64/mmu.h

View file

6

arch/powerpc/include/asm/pkeys.h

View file

58

arch/powerpc/mm/pkeys.c

View file