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 <redacted>
Cc: "Aneesh Kumar K.V" <aneesh.kumar@kernel.org>
Cc: "Naveen N. Rao" <redacted>
Cc: linuxppc-dev@lists.ozlabs.org
Acked-by: Michael Ellerman <mpe@ellerman.id.au>
---
 arch/powerpc/Kconfig | 4 ++++
 1 file changed, 4 insertions(+)

diff --git arch/powerpc/Kconfig arch/powerpc/Kconfig
index d7b09b064a8a..8a4ee57cd4ef 100644
--- arch/powerpc/Kconfig
+++ arch/powerpc/Kconfig

@@ -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

-- 
2.25.1