Re: [PATCH] proc.5: Clarify that boot arguments can be embedded in image

From: Google
Date: Tue Jul 04 2023 - 08:59:45 EST


On Fri, 30 Jun 2023 16:33:28 -0700
"Paul E. McKenney" <paulmck@xxxxxxxxxx> wrote:

> With the advent of the CONFIG_BOOT_CONFIG Kconfig option, kernel boot
> arguments can now be embedded in the kernel image, either attached
> to the end of initramfs or embedded in the kernel itself. Document
> this possibility in the /proc/cmdline entry of proc.5.

Thanks for update!

Reviewed-by: Masami Hiramatsu (Google) <mhiramat@xxxxxxxxxx>

>
> Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxx>
> Cc: Michael Kerrisk <mtk.manpages@xxxxxxxxx>
> Cc: Masami Hiramatsu <mhiramat@xxxxxxxxxx>
> Cc: Jonathan Corbet <corbet@xxxxxxx>
> Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
> Cc: Nick Desaulniers <ndesaulniers@xxxxxxxxxx>
> Cc: Vlastimil Babka <vbabka@xxxxxxx>
> Cc: Johannes Weiner <hannes@xxxxxxxxxxx>
>
> diff --git a/man5/proc.5 b/man5/proc.5
> index c6684620e..141a2983c 100644
> --- a/man5/proc.5
> +++ b/man5/proc.5
> @@ -3100,6 +3100,9 @@ Often done via a boot manager such as
> .BR lilo (8)
> or
> .BR grub (8).
> +Any arguments embedded in the kernel image or initramfs via
> +.B CONFIG_BOOT_CONFIG
> +will also be displayed.
> .TP
> .IR /proc/config.gz " (since Linux 2.6)"
> This file exposes the configuration options that were used


--
Masami Hiramatsu (Google) <mhiramat@xxxxxxxxxx>