[tip: x86/misc] Documentation/x86/boot: Peserve type_of_loader=13 for barebox

[tip-bot2 for Ahmad Fatoum]

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

Commit-ID:     f0a8dec99a55aee896a1e6739ecf737f4524094a
Gitweb:        https://git.kernel.org/tip/f0a8dec99a55aee896a1e6739ecf737f4524094a
Author:        Ahmad Fatoum <a.fatoum@xxxxxxxxxxxxxx>
AuthorDate:    Sun, 02 Oct 2022 14:57:53 +02:00
Committer:     Borislav Petkov <bp@xxxxxxx>
CommitterDate: Mon, 17 Oct 2022 10:11:09 +02:00

Documentation/x86/boot: Peserve 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@xxxxxxxxxxxxxx>
Signed-off-by: Borislav Petkov <bp@xxxxxxx>
Link: https://lore.kernel.org/r/20221002125752.3400831-1-a.fatoum@xxxxxxxxxxxxxx
---
 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@xxxxxxxxx> if you need a bootloader ID value assigned.