Messages in this thread Patch in this message | | | From | Christophe Leroy <> | Subject | [PATCH 1/3] powerpc/8xx: mark _PAGE_SHARED all types of kernel pages | Date | Wed, 22 Apr 2015 12:06:41 +0200 (CEST) |
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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 --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 */ -- 2.1.0
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