Re: [PATCH v12 23/25] kasan, arm64: select HAVE_ARCH_KASAN_SW_TAGS

From: Will Deacon
Date: Thu Nov 29 2018 - 13:01:21 EST


On Tue, Nov 27, 2018 at 05:55:41PM +0100, Andrey Konovalov wrote:
> Now, that all the necessary infrastructure code has been introduced,
> select HAVE_ARCH_KASAN_SW_TAGS for arm64 to enable software tag-based
> KASAN mode.
>
> Signed-off-by: Andrey Konovalov <andreyknvl@xxxxxxxxxx>
> ---
> arch/arm64/Kconfig | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
> index 787d7850e064..8b331dcfb48e 100644
> --- a/arch/arm64/Kconfig
> +++ b/arch/arm64/Kconfig
> @@ -111,6 +111,7 @@ config ARM64
> select HAVE_ARCH_JUMP_LABEL
> 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 !(ARM64_16K_PAGES && ARM64_VA_BITS_48)

Can you do if HAVE_ARCH_KASAN instead?

Will