[PATCH v2 2/6] arm64: ptdump: add region marker for kasan shadow region

Mark Rutland
2016-04-22T17:09:32Z

On Fri, Apr 22, 2016 at 06:48:04PM +0200, Ard Biesheuvel wrote:
> Annotate the KASAN shadow region with boundary markers, so that its
> mappings stand out in the page table dumper output.
>
> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>

Acked-by: Mark Rutland <mark.rutland@arm.com>

Mark.

> ---
> arch/arm64/mm/dump.c | 5 +++++
> 1 file changed, 5 insertions(+)
>
> diff --git a/arch/arm64/mm/dump.c b/arch/arm64/mm/dump.c
> index 493461159462..8404190fe2bd 100644
> --- a/arch/arm64/mm/dump.c
> +++ b/arch/arm64/mm/dump.c
> @@ -23,6 +23,7 @@
> #include <linux/seq_file.h>
>
> #include <asm/fixmap.h>
> +#include <asm/kasan.h>
> #include <asm/memory.h>
> #include <asm/pgtable.h>
> #include <asm/pgtable-hwdef.h>
> @@ -33,6 +34,10 @@ struct addr_marker {
> };
>
> static const struct addr_marker address_markers[] = {
> +#ifdef CONFIG_KASAN
> + { KASAN_SHADOW_START, "Kasan shadow start" },
> + { KASAN_SHADOW_END, "Kasan shadow end" },
> +#endif
> { MODULES_VADDR, "Modules start" },
> { MODULES_END, "Modules end" },
> { VMALLOC_START, "vmalloc() Area" },
> --
> 2.7.4
>