Commit 87be3e2d authored Jul 12, 2017 by Christophe Leroy Committed by Michael Ellerman Aug 15, 2017

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>

parent a3059b0c

arch/powerpc/Kconfig

+2 −1

Original line number	Diff line number	Diff line
		@@ -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"