diff options
| author | Ingo Molnar | 2017-10-23 13:30:47 +0200 |
|---|---|---|
| committer | Ingo Molnar | 2017-10-23 13:30:47 +0200 |
| commit | f95b23a112f1a31ea042483540cd907b58d23a5f (patch) | |
| tree | 3d41d2f8cf1d66ed593deb12f25a30d2905eb077 /arch/arm64/include/asm | |
| parent | x86/entry: Use SYSCALL_DEFINE() macros for sys_modify_ldt() (diff) | |
| parent | x86/unwind: Show function name+offset in ORC error messages (diff) | |
| download | kernel-qcow2-linux-f95b23a112f1a31ea042483540cd907b58d23a5f.tar.gz kernel-qcow2-linux-f95b23a112f1a31ea042483540cd907b58d23a5f.tar.xz kernel-qcow2-linux-f95b23a112f1a31ea042483540cd907b58d23a5f.zip | |
Merge branch 'x86/urgent' into x86/asm, to pick up dependent fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/arm64/include/asm')
| -rw-r--r-- | arch/arm64/include/asm/memory.h | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/arch/arm64/include/asm/memory.h b/arch/arm64/include/asm/memory.h index 3585a5e26151..f7c4d2146aed 100644 --- a/arch/arm64/include/asm/memory.h +++ b/arch/arm64/include/asm/memory.h @@ -95,16 +95,19 @@ #define KERNEL_END _end /* - * The size of the KASAN shadow region. This should be 1/8th of the - * size of the entire kernel virtual address space. + * 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. */ #ifdef CONFIG_KASAN #define KASAN_SHADOW_SIZE (UL(1) << (VA_BITS - 3)) +#define KASAN_THREAD_SHIFT 1 #else #define KASAN_SHADOW_SIZE (0) +#define KASAN_THREAD_SHIFT 0 #endif -#define MIN_THREAD_SHIFT 14 +#define MIN_THREAD_SHIFT (14 + KASAN_THREAD_SHIFT) /* * VMAP'd stacks are allocated at page granularity, so we must ensure that such |