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From:   Alexander Potapenko <glider@google.com>
Date:   Wed, 11 Nov 2020 17:49:17 +0100
Message-ID: <CAG_fn=XsoJeoYQvO4vi2W0RyxnwBQ5N=wcaRD84OEZy2+Gxtbw@mail.gmail.com>
Subject: Re: [PATCH v9 42/44] kasan, arm64: enable CONFIG_KASAN_HW_TAGS
To:     Andrey Konovalov <andreyknvl@google.com>
Cc:     Catalin Marinas <catalin.marinas@arm.com>,
        Will Deacon <will.deacon@arm.com>,
        Vincenzo Frascino <vincenzo.frascino@arm.com>,
        Dmitry Vyukov <dvyukov@google.com>,
        Andrey Ryabinin <aryabinin@virtuozzo.com>,
        Marco Elver <elver@google.com>,
        Evgenii Stepanov <eugenis@google.com>,
        Branislav Rankov <Branislav.Rankov@arm.com>,
        Kevin Brodsky <kevin.brodsky@arm.com>,
        Andrew Morton <akpm@linux-foundation.org>,
        kasan-dev <kasan-dev@googlegroups.com>,
        Linux ARM <linux-arm-kernel@lists.infradead.org>,
        Linux Memory Management List <linux-mm@kvack.org>,
        LKML <linux-kernel@vger.kernel.org>
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On Tue, Nov 10, 2020 at 11:12 PM Andrey Konovalov <andreyknvl@google.com> w=
rote:
>
> Hardware tag-based KASAN is now ready, enable the configuration option.
>
> Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
> 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 456741645f01..c35e73efd407 100644
> --- a/arch/arm64/Kconfig
> +++ b/arch/arm64/Kconfig
> @@ -135,6 +135,7 @@ 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_KGDB
>         select HAVE_ARCH_MMAP_RND_BITS
>         select HAVE_ARCH_MMAP_RND_COMPAT_BITS if COMPAT
> --
> 2.29.2.222.g5d2a92d10f8-goog
>


--=20
Alexander Potapenko
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