diff options
| author | Andrey Ryabinin <aryabinin@virtuozzo.com> | 2015-11-17 10:47:08 -0500 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2015-11-26 10:27:09 -0500 |
| commit | f1b9032f61c0412082a240cb7245f8b79e09ae8d (patch) | |
| tree | 02f0f098843bb7fa3511e6967dd862e9db16b7c5 | |
| parent | 3b12acf4c999abaf93023af4bd78d931bce2520c (diff) | |
arm64: KASAN depends on !(ARM64_16K_PAGES && ARM64_VA_BITS_48)
On KASAN + 16K_PAGES + 48BIT_VA
arch/arm64/mm/kasan_init.c: In function ‘kasan_early_init’:
include/linux/compiler.h:484:38: error: call to ‘__compiletime_assert_95’ declared with attribute error: BUILD_BUG_ON failed: !IS_ALIGNED(KASAN_SHADOW_END, PGDIR_SIZE)
_compiletime_assert(condition, msg, __compiletime_assert_, __LINE__)
Currently KASAN will not work on 16K_PAGES and 48BIT_VA, so
forbid such configuration to avoid above build failure.
Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Reported-by: Suzuki K. Poulose <Suzuki.Poulose@arm.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
| -rw-r--r-- | arch/arm64/Kconfig | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 9ac16a482ff1..bf7de69a4126 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig | |||
| @@ -49,7 +49,7 @@ config ARM64 | |||
| 49 | select HAVE_ARCH_AUDITSYSCALL | 49 | select HAVE_ARCH_AUDITSYSCALL |
| 50 | select HAVE_ARCH_BITREVERSE | 50 | select HAVE_ARCH_BITREVERSE |
| 51 | select HAVE_ARCH_JUMP_LABEL | 51 | select HAVE_ARCH_JUMP_LABEL |
| 52 | select HAVE_ARCH_KASAN if SPARSEMEM_VMEMMAP | 52 | select HAVE_ARCH_KASAN if SPARSEMEM_VMEMMAP && !(ARM64_16K_PAGES && ARM64_VA_BITS_48) |
| 53 | select HAVE_ARCH_KGDB | 53 | select HAVE_ARCH_KGDB |
| 54 | select HAVE_ARCH_SECCOMP_FILTER | 54 | select HAVE_ARCH_SECCOMP_FILTER |
| 55 | select HAVE_ARCH_TRACEHOOK | 55 | select HAVE_ARCH_TRACEHOOK |