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

Ard Biesheuvel
2016-04-22T16:48:04Z

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-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
---
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