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Diffstat (limited to 'arch/powerpc/include/asm/kasan.h')
-rw-r--r--arch/powerpc/include/asm/kasan.h13
1 files changed, 12 insertions, 1 deletions
diff --git a/arch/powerpc/include/asm/kasan.h b/arch/powerpc/include/asm/kasan.h
index a6be4025cba2..92a968202ba7 100644
--- a/arch/powerpc/include/asm/kasan.h
+++ b/arch/powerpc/include/asm/kasan.h
@@ -19,7 +19,7 @@
#define KASAN_SHADOW_SCALE_SHIFT 3
-#ifdef CONFIG_MODULES
+#if defined(CONFIG_MODULES) && defined(CONFIG_PPC32)
#define KASAN_KERN_START ALIGN_DOWN(PAGE_OFFSET - SZ_256M, SZ_256M)
#else
#define KASAN_KERN_START PAGE_OFFSET
@@ -39,6 +39,17 @@
* c00e000000000000 << 3 + a80e000000000000 = c00fc00000000000
*/
#define KASAN_SHADOW_END 0xc00fc00000000000UL
+
+#else
+
+/*
+ * The shadow ends before the highest accessible address
+ * because we don't need a shadow for the shadow.
+ * But it doesn't hurt to have a shadow for the shadow,
+ * keep shadow end aligned eases things.
+ */
+#define KASAN_SHADOW_END 0xc000200000000000UL
+
#endif
#ifdef CONFIG_KASAN