[PATCH 2/2] ARM: decompressor: add option to ignore MEM ATAGs

Linus Walleij linus.walleij at linaro.org
Sat Jan 20 03:51:06 PST 2024


On Fri, Jan 19, 2024 at 9:14 PM Christian Marangi <ansuelsmth at gmail.com> wrote:

> Some bootloaders can pass broken MEM ATAGs that provide hardcoded
> information about mounted RAM size and physical location.
> Example booloader provide RAM of size 1.7Gb but actual mounted RAM
> size is 512Mb causing kernel panic.
>
> Add option CONFIG_ARM_ATAG_DTB_COMPAT_IGNORE_MEM to ignore these ATAG
> and not augument appended DTB memory node.
>
> Signed-off-by: Christian Marangi <ansuelsmth at gmail.com>

So you cannot just ignore all the ATAGs I guess?
If it's the command line you need, you can pass an identical one in
chosen.

But if you really need this, it should be there.
Acked-by: Linus Walleij <linus.walleij at linaro.org>

Yours,
Linus Walleij



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