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[1/3] powerpc/8xx: mark _PAGE_SHARED all types of kernel pages

Message ID c892c744ca721a773c3663ed1f0b2157a4f73aeb.1429696335.git.christophe.leroy@c-s.fr (mailing list archive)
State Accepted
Commit 83b086c5697169f1e34d2430dad062cc714c5c57
Delegated to: Scott Wood
Headers show

Commit Message

Christophe Leroy April 22, 2015, 10:06 a.m. UTC 
All kernel pages have to be marked as shared in order to not perform
CASID verification.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
---
 arch/powerpc/include/asm/pte-8xx.h | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)
diff mbox

Patch

diff --git a/arch/powerpc/include/asm/pte-8xx.h b/arch/powerpc/include/asm/pte-8xx.h
index eb6edb4..c8aacad 100644
--- a/arch/powerpc/include/asm/pte-8xx.h
+++ b/arch/powerpc/include/asm/pte-8xx.h
@@ -63,7 +63,12 @@ 
 
 /* We need to add _PAGE_SHARED to kernel pages */
 #define _PAGE_KERNEL_RO	(_PAGE_SHARED | _PAGE_RO | _PAGE_KNLRO)
-#define _PAGE_KERNEL_ROX	(_PAGE_EXEC | _PAGE_RO | _PAGE_KNLRO)
+#define _PAGE_KERNEL_ROX	(_PAGE_SHARED | _PAGE_RO | _PAGE_KNLRO | \
+				 _PAGE_EXEC)
+#define _PAGE_KERNEL_RW		(_PAGE_SHARED | _PAGE_DIRTY | _PAGE_RW | \
+				 _PAGE_HWWRITE)
+#define _PAGE_KERNEL_RWX	(_PAGE_SHARED | _PAGE_DIRTY | _PAGE_RW | \
+				 _PAGE_HWWRITE | _PAGE_EXEC)
 
 #endif /* __KERNEL__ */
 #endif /*  _ASM_POWERPC_PTE_8xx_H */