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powerpc/mm: add ARCH_PKEY_BITS to Kconfig

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The new config option specifies how many bits are in each PKEY.

Signed-off-by: Joey Gouly <joey.gouly@arm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: Christophe Leroy <christophe.leroy@csgroup.eu>
Cc: Aneesh Kumar K.V <aneesh.kumar@kernel.org>
Cc: Naveen N. Rao <naveen.n.rao@linux.ibm.com>
Cc: linuxppc-dev@lists.ozlabs.org
Acked-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20240822151113.1479789-2-joey.gouly@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
This commit is contained in:
Joey Gouly 2024-08-22 16:10:44 +01:00 committed by Will Deacon
parent 487355f111
commit 12930e3a86
1 changed files with 4 additions and 0 deletions
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4
arch/powerpc/Kconfig
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@ -1026,6 +1026,10 @@ config PPC_MEM_KEYS
If unsure, say y.
config ARCH_PKEY_BITS
int
default 5
config PPC_SECURE_BOOT
prompt "Enable secure boot support"
bool