linux-kernel - Re: [RESEND PATCH v2] arm/mm/ptdump:Add address markers for KASAN regions

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Date:   Thu, 21 Jan 2021 09:36:32 +0100
From:   Linus Walleij <linus.walleij@...aro.org>
To:     Hailong liu <carver4lio@....com>
Cc:     Russell King <linux@...linux.org.uk>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Mike Rapoport <rppt@...nel.org>,
        Andrey Ryabinin <aryabinin@...tuozzo.com>,
        Alexander Potapenko <glider@...gle.com>,
        Dmitry Vyukov <dvyukov@...gle.com>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        kasan-dev <kasan-dev@...glegroups.com>,
        Hailong Liu <liu.hailong6@....com.cn>
Subject: Re: [RESEND PATCH v2] arm/mm/ptdump:Add address markers for KASAN regions

On Wed, Jan 20, 2021 at 1:54 PM Hailong liu <carver4lio@....com> wrote:

> From: Hailong Liu <liu.hailong6@....com.cn>
>
> ARM has recently supported KASAN, so I think that it's time to add KASAN
> regions for PTDUMP on ARM.
>
> I have tested this patch with QEMU + vexpress-a15. Both CONFIG_ARM_LPAE
> and no CONFIG_ARM_LPAE.
>
> The result after patching looks like this:
>  ---[ Kasan shadow start ]---
>  0x6ee00000-0x7af00000         193M     RW NX SHD MEM/CACHED/WBWA
>  0x7b000000-0x7f000000          64M     ro NX SHD MEM/CACHED/WBWA
>  ---[ Kasan shadow end ]---
>  ---[ Modules ]---
>  ---[ Kernel Mapping ]---
>         ......
>  ---[ vmalloc() Area ]---
>         ......
>  ---[ vmalloc() End ]---
>  ---[ Fixmap Area ]---
>  ---[ Vectors ]---
>         ......
>  ---[ Vectors End ]---
>
> v2:
> - fix the puzzling subject and the description due to my
> carelessness.
>
> Signed-off-by: Hailong Liu <liu.hailong6@....com.cn>

Looks correct!
Reviewed-by: Linus Walleij <linus.walleij@...aro.org>

Please put this into Russell's patch tracker.

Yours,
Linus Walleij