powerpc: helper to validate key-access permissions of a pte

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helper function that checks if the read/write/execute is allowed
on the pte.

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

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Ram Pai 2018-01-18 17:50:37 -08:00 • committed by Michael Ellerman

parent a6590ca55f

commit f2407ef3ba

3 changed files with 39 additions and 0 deletions

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2

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

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9

arch/powerpc/include/asm/pkeys.h

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28

arch/powerpc/mm/pkeys.c

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