[PATCH 5/7] powerpc/8xx: Do not allow Pinned TLBs with STRICT_KERNEL_RWX or DEBUG_PAGEALLOC
From: Christophe Leroy <hidden>
Date: 2017-07-12 10:09:40
Also in:
lkml
Subsystem:
linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Linus Torvalds
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 <redacted> --- arch/powerpc/Kconfig | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index d09b259d3621..28608275d7c0 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig@@ -1165,7 +1165,8 @@ config CONSISTENT_SIZE config PIN_TLB bool "Pinned Kernel TLBs (860 ONLY)" - depends on ADVANCED_OPTIONS && 8xx + depends on ADVANCED_OPTIONS && PPC_8xx && \ + !DEBUG_PAGEALLOC && !STRICT_KERNEL_RWX config PIN_TLB_DATA bool "Pinned TLB for DATA"
--
2.12.0