lkml.org 
[lkml]   [2017]   [Jul]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 5/7] powerpc/8xx: Do not allow Pinned TLBs with STRICT_KERNEL_RWX or DEBUG_PAGEALLOC
Date
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>
---
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
\
 
 \ /
  Last update: 2017-07-12 12:10    [W:0.059 / U:0.492 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site