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From:   Lecopzer Chen <lecopzer.chen@mediatek.com>
To:     <linux-kernel@vger.kernel.org>
CC:     Russell King <linux@armlinux.org.uk>,
        Andrey Ryabinin <ryabinin.a.a@gmail.com>,
        Alexander Potapenko <glider@google.com>,
        "Andrey Konovalov" <andreyknvl@gmail.com>,
        Dmitry Vyukov <dvyukov@google.com>,
        Matthias Brugger <matthias.bgg@gmail.com>,
        Arnd Bergmann <arnd@arndb.de>,
        Linus Walleij <linus.walleij@linaro.org>,
        <rmk+kernel@armlinux.org.uk>,
        "Geert Uytterhoeven" <geert+renesas@glider.be>,
        Ard Biesheuvel <ardb@kernel.org>,
        Mark Rutland <mark.rutland@arm.com>,
        Anshuman Khandual <anshuman.khandual@arm.com>,
        Lukas Bulwahn <lukas.bulwahn@gmail.com>,
        Masahiro Yamada <masahiroy@kernel.org>,
        <linux-arm-kernel@lists.infradead.org>,
        <kasan-dev@googlegroups.com>, <yj.chiang@mediatek.com>,
        Lecopzer Chen <lecopzer@gmail.com>
Subject: [PATCH 0/2] arm: kasan: support CONFIG_KASAN_VMALLOC
Date:   Tue, 18 Jan 2022 17:44:48 +0800
Message-ID: <20220118094450.7730-1-lecopzer.chen@mediatek.com>
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From: Lecopzer Chen <lecopzer@gmail.com>

Since the framework of KASAN_VMALLOC is well-developed,
It's easy to support for ARM that simply not to map shadow of VMALLOC
area on kasan_init.

This can fix ARM_MODULE_PLTS with KASAN and provide first step
to support CONFIG_VMAP_STACK in ARM.
    

Patch base on v5.16

Test on
1. Qemu with memory 2G and vmalloc=500M for 3G/1G mapping.
2. Qemu with memory 2G and vmalloc=500M for 3G/1G mapping + LPAE.
3. Qemu with memory 2G and vmalloc=500M for 2G/2G mapping.


Lecopzer Chen (2):
  arm: kasan: support CONFIG_KASAN_VMALLOC
  arm: kconfig: fix MODULE_PLTS for KASAN with KASAN_VMALLOC

 arch/arm/Kconfig         | 2 ++
 arch/arm/mm/kasan_init.c | 6 +++++-
 2 files changed, 7 insertions(+), 1 deletion(-)

-- 
2.25.1