linux-kernel - [tip: x86/misc] Documentation/x86/boot: Reserve type_of

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Date:   Mon, 17 Oct 2022 09:30:55 -0000
From:   "tip-bot2 for Ahmad Fatoum" <tip-bot2@...utronix.de>
To:     linux-tip-commits@...r.kernel.org
Cc:     Ahmad Fatoum <a.fatoum@...gutronix.de>,
        Borislav Petkov <bp@...e.de>, x86@...nel.org,
        linux-kernel@...r.kernel.org
Subject: [tip: x86/misc] Documentation/x86/boot: Reserve type_of_loader=13 for barebox

The following commit has been merged into the x86/misc branch of tip:

Commit-ID:     a27e292b8a54e24f85181d949fac8c51fdec8ff3
Gitweb:        https://git.kernel.org/tip/a27e292b8a54e24f85181d949fac8c51fdec8ff3
Author:        Ahmad Fatoum <a.fatoum@...gutronix.de>
AuthorDate:    Sun, 02 Oct 2022 14:57:53 +02:00
Committer:     Borislav Petkov <bp@...e.de>
CommitterDate: Mon, 17 Oct 2022 11:22:33 +02:00

Documentation/x86/boot: Reserve type_of_loader=13 for barebox

barebox[1], a bootloader for mostly ARM and MIPS embedded systems, can
also be built as EFI payload for x86[2] to provide redundant power-fail
safe, watchdog-supervised boot up.

Since its v2015.09.0 release, it has been booting Linux on x86 with
type_of_loader=0xff[3]. Reserve 13, the next free id, so that can be
used instead in the future.

[1]: https://www.barebox.org/
[2]: https://www.barebox.org/doc/latest/boards/efi.html
[3]: https://elixir.bootlin.com/barebox/v2022.09.0/source/common/efi/payload/image.c#L217

Signed-off-by: Ahmad Fatoum <a.fatoum@...gutronix.de>
Signed-off-by: Borislav Petkov <bp@...e.de>
Link: https://lore.kernel.org/r/20221002125752.3400831-1-a.fatoum@pengutronix.de
---
 Documentation/x86/boot.rst | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/x86/boot.rst b/Documentation/x86/boot.rst
index 894a198..240d084 100644
--- a/Documentation/x86/boot.rst
+++ b/Documentation/x86/boot.rst
@@ -455,6 +455,7 @@ Protocol:	2.00+
 	11 Minimal Linux Bootloader
 	   <http://sebastian-plotz.blogspot.de>
 	12 OVMF UEFI virtualization stack
+	13 barebox
 	== =======================================
 
   Please contact <hpa@...or.com> if you need a bootloader ID value assigned.