[PATCH 2/2] powerpc/8xx: Honor execonly protection

[Christophe Leroy]

On powerpc 8xx, exec does not imply read so
redefine PAGE_NONE_X as PAGE_NONE + X

Signed-off-by: Christophe Leroy <christophe.leroy at csgroup.eu>
Cc: Russell Currey <ruscur at russell.cc>
Cc: Kees Cook <keescook at chromium.org>
---
 arch/powerpc/include/asm/nohash/32/pte-8xx.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/include/asm/nohash/32/pte-8xx.h b/arch/powerpc/include/asm/nohash/32/pte-8xx.h
index b234a93b05f1..f47d36d40a26 100644
--- a/arch/powerpc/include/asm/nohash/32/pte-8xx.h
+++ b/arch/powerpc/include/asm/nohash/32/pte-8xx.h
@@ -79,7 +79,7 @@
 
 /* Permission masks used to generate the __P and __S table */
 #define PAGE_NONE	__pgprot(_PAGE_BASE | _PAGE_NA)
-#define PAGE_NONE_X	__pgprot(_PAGE_BASE | _PAGE_RO | _PAGE_EXEC)
+#define PAGE_NONE_X	__pgprot(_PAGE_BASE | _PAGE_NA | _PAGE_EXEC)
 #define PAGE_SHARED	__pgprot(_PAGE_BASE)
 #define PAGE_SHARED_X	__pgprot(_PAGE_BASE | _PAGE_EXEC)
 #define PAGE_COPY	__pgprot(_PAGE_BASE | _PAGE_RO)
-- 
2.41.0