linux-kernel - [PATCH v2 0/2] arm: kasan: support CONFIG_KASAN

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Message-ID: <20220212074747.10849-1-lecopzer.chen@mediatek.com>
Date:   Sat, 12 Feb 2022 15:47:45 +0800
From:   Lecopzer Chen <lecopzer.chen@...iatek.com>
To:     <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>
CC:     <lecopzer.chen@...iatek.com>, <andreyknvl@...il.com>,
        <anshuman.khandual@....com>, <ardb@...nel.org>, <arnd@...db.de>,
        <dvyukov@...gle.com>, <geert+renesas@...der.be>,
        <glider@...gle.com>, <kasan-dev@...glegroups.com>,
        <linus.walleij@...aro.org>, <linux@...linux.org.uk>,
        <lukas.bulwahn@...il.com>, <mark.rutland@....com>,
        <masahiroy@...nel.org>, <matthias.bgg@...il.com>,
        <rmk+kernel@...linux.org.uk>, <ryabinin.a.a@...il.com>,
        <yj.chiang@...iatek.com>
Subject: [PATCH v2 0/2] arm: kasan: support CONFIG_KASAN_VMALLOC

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.


v2:
    rebase on 5.17-rc3


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