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powerpc/8xx: Do not allow Pinned TLBs with STRICT_KERNEL_RWX or DEBUG_PAGEALLOC 

Pinning TLBs bypasses STRICT_KERNEL_RWX or DEBUG_PAGEALLOC protections
so it should only be allowed when those are not selected

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Christophe Leroy 2017-07-12 12:08:53 +02:00 committed by Michael Ellerman
parent a3059b0ca0
commit 87be3e2d31
1 changed files with 2 additions and 1 deletions
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arch/powerpc/Kconfig
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@ -1176,7 +1176,8 @@ config CONSISTENT_SIZE
config PIN_TLB
bool "Pinned Kernel TLBs (860 ONLY)"
depends on ADVANCED_OPTIONS && PPC_8xx
depends on ADVANCED_OPTIONS && PPC_8xx && \
!DEBUG_PAGEALLOC && !STRICT_KERNEL_RWX
config PIN_TLB_DATA
bool "Pinned TLB for DATA"