# \[PATCH mm v11 40/42\] kasan, arm64: enable CONFIG\_KASAN\_HW\_TAGS

- From: Andrey Konovalov \<hidden\>
- Date: 2020-11-23 20:12:40 
- List: linux-arm-kernel
- Page: https://ratatoskr.run/linux-arm-kernel/2020/11/6187345
- Thread: https://ratatoskr.run/linux-arm-kernel/2020/11/6187288/t.md

```text
Hardware tag-based KASAN is now ready, enable the configuration option.

Signed-off-by: Andrey Konovalov <redacted>
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Alexander Potapenko <glider@google.com>
---
Change-Id: I6eb1eea770e6b61ad71c701231b8d815a7ccc853
---
 arch/arm64/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 434247e14814..6fefab9041d8 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -136,6 +136,7 @@ config ARM64
 	select HAVE_ARCH_JUMP_LABEL_RELATIVE
 	select HAVE_ARCH_KASAN if !(ARM64_16K_PAGES && ARM64_VA_BITS_48)
 	select HAVE_ARCH_KASAN_SW_TAGS if (HAVE_ARCH_KASAN && !ARM64_MTE)
+	select HAVE_ARCH_KASAN_HW_TAGS if (HAVE_ARCH_KASAN && ARM64_MTE)
 	select HAVE_ARCH_KFENCE
 	select HAVE_ARCH_KGDB
 	select HAVE_ARCH_MMAP_RND_BITS
-- 
2.29.2.454.gaff20da3a2-goog


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```