Powerpc 44x has two bits for exec protection in TLBs: one
for user (UX) and one for superviser (SX).
Clear SX on user pages in TLB miss handlers to provide KUEP.
Signed-off-by: Christophe Leroy
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arch/powerpc/include/asm/nohash/32/mmu-44x.h | 1 +
arch/powerpc/kernel/head_44x.S
On Wed, 2 Jun 2021 06:42:10 + (UTC), Christophe Leroy wrote:
> Powerpc 44x has two bits for exec protection in TLBs: one
> for user (UX) and one for superviser (SX).
>
> Clear SX on user pages in TLB miss handlers to provide KUEP.
Applied to powerpc/next.
[1/1] powerpc/44x: Implement Kernel
