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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	[thread overview]
Message-ID: <20220118094450.7730-1-lecopzer.chen@mediatek.com> (raw)

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


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WARNING: multiple messages have this Message-ID (diff)
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	[thread overview]
Message-ID: <20220118094450.7730-1-lecopzer.chen@mediatek.com> (raw)

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


             reply	other threads:[~2022-01-18  9:46 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-01-18  9:44 Lecopzer Chen [this message]
2022-01-18  9:44 ` [PATCH 0/2] arm: kasan: support CONFIG_KASAN_VMALLOC Lecopzer Chen
2022-01-18  9:44 ` [PATCH 1/2] " Lecopzer Chen
2022-01-18  9:44   ` Lecopzer Chen
2022-01-18  9:44 ` [PATCH 2/2] arm: kconfig: fix MODULE_PLTS for KASAN with KASAN_VMALLOC Lecopzer Chen
2022-01-18  9:44   ` Lecopzer Chen

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