[PATCH 4/6] common: boards: qemu: process some standard fw_cfg keys

[Sascha Hauer]

On Thu, Jan 15, 2026 at 01:06:12PM +0100, Ahmad Fatoum wrote:
> While we have FW_CFG support as file system, there is a number of keys
> that precede the keys in the file system, which can be useful in some
> scenarios.
> 
> Add support for QEMU -uuid, -kernel, -initrd, -append options as well as
> a /boot/qemu_fw_cfg script that continues booting according to the latter
> three options.
> 
> Signed-off-by: Ahmad Fatoum <a.fatoum at barebox.org>
> ---
>  common/boards/Kconfig                         |   8 +
>  common/boards/Makefile                        |   1 +
>  common/boards/qemu/Makefile                   |   4 +
>  .../defaultenv-qemu_fw_cfg/boot/qemu_fw_cfg   |  12 +
>  common/boards/qemu/fw_cfg.c                   | 208 ++++++++++++++++++
>  drivers/firmware/Kconfig                      |   1 +
>  6 files changed, 234 insertions(+)
>  create mode 100644 common/boards/qemu/Makefile
>  create mode 100755 common/boards/qemu/defaultenv-qemu_fw_cfg/boot/qemu_fw_cfg
>  create mode 100644 common/boards/qemu/fw_cfg.c
> 
> diff --git a/common/boards/Kconfig b/common/boards/Kconfig
> index 74947316954b..a9e1b75a7641 100644
> --- a/common/boards/Kconfig
> +++ b/common/boards/Kconfig
> @@ -1,5 +1,13 @@
>  # SPDX-License-Identifier: GPL-2.0-only
>  
> +config BOARD_QEMU
> +	bool "Extra support for QEMU-emulated boards" if COMPILE_TEST
> +
> +config BOARD_QEMU_VIRT
> +	bool
> +	select OF_OVERLAY
> +	select BOARD_QEMU
> +
>  config BOARD_QEMU_VIRT
>  	bool
>  	select OF_OVERLAY

You likely intended to just add "select BOARD_QEMU" instead of
duplicating the option. I'll fix that while applying.

Sascha

-- 
Pengutronix e.K.                           |                             |
Steuerwalder Str. 21                       | http://www.pengutronix.de/  |
31137 Hildesheim, Germany                  | Phone: +49-5121-206917-0    |
Amtsgericht Hildesheim, HRA 2686           | Fax:   +49-5121-206917-5555 |