diff options
| -rw-r--r-- | arch/arm64/include/asm/memory.h | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/arch/arm64/include/asm/memory.h b/arch/arm64/include/asm/memory.h index b96442960aea..56562ff01076 100644 --- a/arch/arm64/include/asm/memory.h +++ b/arch/arm64/include/asm/memory.h @@ -76,12 +76,17 @@ /* * KASAN requires 1/8th of the kernel virtual address space for the shadow * region. KASAN can bloat the stack significantly, so double the (minimum) - * stack size when KASAN is in use. + * stack size when KASAN is in use, and then double it again if KASAN_EXTRA is + * on. */ #ifdef CONFIG_KASAN #define KASAN_SHADOW_SCALE_SHIFT 3 #define KASAN_SHADOW_SIZE (UL(1) << (VA_BITS - KASAN_SHADOW_SCALE_SHIFT)) +#ifdef CONFIG_KASAN_EXTRA +#define KASAN_THREAD_SHIFT 2 +#else #define KASAN_THREAD_SHIFT 1 +#endif /* CONFIG_KASAN_EXTRA */ #else #define KASAN_SHADOW_SIZE (0) #define KASAN_THREAD_SHIFT 0 |