powerpc: cleanup AMR, IAMR when a key is allocated or freed

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Cleanup the bits corresponding to a key in the AMR, and IAMR
register, when the key is newly allocated/activated or is freed.
We dont want some residual bits cause the hardware enforce
unintended behavior when the key is activated or freed.

Reviewed-by: Thiago Jung Bauermann <bauerman@linux.vnet.ibm.com>
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 17:50:28 -08:00 • committed by Michael Ellerman

parent 4d70b698f9

commit 0685f217af

1 changed files with 12 additions and 0 deletions

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arch/powerpc/include/asm/pkeys.h

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