powerpc/8xx: Allow disabling KUAP at boot time

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PPC64 uses MMU features to enable/disable KUAP at boot time.
But feature fixups are applied way too early on PPC32.

But since commit c16728835e ("powerpc/32: Manage KUAP in C"),
all KUAP is in C so it is now possible to use static branches.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/3dca510ce555335261a47c4799167da698f569c0.1622782111.git.christophe.leroy@csgroup.eu

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Christophe Leroy 2021-06-04 04:49:25 +00:00 • committed by Michael Ellerman

parent 10248dcba1

commit f6025a140b

2 changed files with 48 additions and 6 deletions

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43

arch/powerpc/include/asm/nohash/32/kup-8xx.h

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11

arch/powerpc/mm/nohash/8xx.c

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