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From: Linus Walleij <linus.walleij@linaro.org>
To: Lecopzer Chen <lecopzer.chen@mediatek.com>
Cc: linux@armlinux.org.uk, andreyknvl@gmail.com,
	anshuman.khandual@arm.com, ardb@kernel.org, arnd@arndb.de,
	dvyukov@google.com, geert+renesas@glider.be, glider@google.com,
	kasan-dev@googlegroups.com, linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, lukas.bulwahn@gmail.com,
	mark.rutland@arm.com, masahiroy@kernel.org,
	matthias.bgg@gmail.com, rmk+kernel@armlinux.org.uk,
	ryabinin.a.a@gmail.com, yj.chiang@mediatek.com
Subject: Re: [PATCH v5 0/2] arm: kasan: support CONFIG_KASAN_VMALLOC
Date: Wed, 27 Apr 2022 15:01:48 +0200	[thread overview]
Message-ID: <CACRpkda_hpTVxKftKBqRvBtC-KN8c9NWHFJDV10TN4JOR7CQCw@mail.gmail.com> (raw)
In-Reply-To: <20220427095916.17515-1-lecopzer.chen@mediatek.com>

On Wed, Apr 27, 2022 at 11:59 AM Lecopzer Chen
<lecopzer.chen@mediatek.com> wrote:

> 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.
>
> Since the virtual address of vmalloc for Arm is also between
> MODULE_VADDR and 0x100000000 (ZONE_HIGHMEM), which means the shadow
> address has already included between KASAN_SHADOW_START and
> KASAN_SHADOW_END.
> Thus we need to change nothing for memory map of Arm.
>
> This can fix ARM_MODULE_PLTS with KASan, support KASan for higmem
> and support CONFIG_VMAP_STACK with KASan.

Excellent Lecopzer,

can you put these patches into Russell's patch tracker so he can pick them?
https://www.armlinux.org.uk/developer/patches/

Yours,
Linus Walleij

WARNING: multiple messages have this Message-ID (diff)
From: Linus Walleij <linus.walleij@linaro.org>
To: Lecopzer Chen <lecopzer.chen@mediatek.com>
Cc: linux@armlinux.org.uk, andreyknvl@gmail.com,
	anshuman.khandual@arm.com,  ardb@kernel.org, arnd@arndb.de,
	dvyukov@google.com, geert+renesas@glider.be,  glider@google.com,
	kasan-dev@googlegroups.com,
	 linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org,  lukas.bulwahn@gmail.com,
	mark.rutland@arm.com, masahiroy@kernel.org,
	 matthias.bgg@gmail.com, rmk+kernel@armlinux.org.uk,
	ryabinin.a.a@gmail.com,  yj.chiang@mediatek.com
Subject: Re: [PATCH v5 0/2] arm: kasan: support CONFIG_KASAN_VMALLOC
Date: Wed, 27 Apr 2022 15:01:48 +0200	[thread overview]
Message-ID: <CACRpkda_hpTVxKftKBqRvBtC-KN8c9NWHFJDV10TN4JOR7CQCw@mail.gmail.com> (raw)
In-Reply-To: <20220427095916.17515-1-lecopzer.chen@mediatek.com>

On Wed, Apr 27, 2022 at 11:59 AM Lecopzer Chen
<lecopzer.chen@mediatek.com> wrote:

> 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.
>
> Since the virtual address of vmalloc for Arm is also between
> MODULE_VADDR and 0x100000000 (ZONE_HIGHMEM), which means the shadow
> address has already included between KASAN_SHADOW_START and
> KASAN_SHADOW_END.
> Thus we need to change nothing for memory map of Arm.
>
> This can fix ARM_MODULE_PLTS with KASan, support KASan for higmem
> and support CONFIG_VMAP_STACK with KASan.

Excellent Lecopzer,

can you put these patches into Russell's patch tracker so he can pick them?
https://www.armlinux.org.uk/developer/patches/

Yours,
Linus Walleij

_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

  parent reply	other threads:[~2022-04-27 13:02 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-04-27  9:59 [PATCH v5 0/2] arm: kasan: support CONFIG_KASAN_VMALLOC Lecopzer Chen
2022-04-27  9:59 ` Lecopzer Chen
2022-04-27  9:59 ` [PATCH v5 1/2] " Lecopzer Chen
2022-04-27  9:59   ` Lecopzer Chen
2022-04-27  9:59 ` [PATCH v5 2/2] arm: kconfig: fix MODULE_PLTS for KASAN with KASAN_VMALLOC Lecopzer Chen
2022-04-27  9:59   ` Lecopzer Chen
2022-04-27 13:01 ` Linus Walleij [this message]
2022-04-27 13:01   ` [PATCH v5 0/2] arm: kasan: support CONFIG_KASAN_VMALLOC Linus Walleij
2022-04-27 14:33   ` Lecopzer Chen
2022-04-27 14:33     ` Lecopzer Chen

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