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Re: [Qemu-devel] [PATCH] docs: add firmware.txt
From: |
Eduardo Habkost |
Subject: |
Re: [Qemu-devel] [PATCH] docs: add firmware.txt |
Date: |
Wed, 4 Jul 2018 17:44:07 -0300 |
User-agent: |
Mutt/1.9.2 (2017-12-15) |
On Fri, Sep 01, 2017 at 12:53:31PM +0200, Gerd Hoffmann wrote:
> Document how guest firmware is handled in qemu today.
>
> Reviewed-by: Laszlo Ersek <address@hidden>
> Signed-off-by: Gerd Hoffmann <address@hidden>
Is this document still valid? Should we apply this for QEMU 3.0?
> ---
> docs/firmware.txt | 49 +++++++++++++++++++++++++++++++++++++++++++++++++
> 1 file changed, 49 insertions(+)
> create mode 100644 docs/firmware.txt
>
> diff --git a/docs/firmware.txt b/docs/firmware.txt
> new file mode 100644
> index 0000000000..e242413344
> --- /dev/null
> +++ b/docs/firmware.txt
> @@ -0,0 +1,49 @@
> +
> +prebuilt firmware in qemu
> +=========================
> +
> +The process of building firmware isn't as easy as building qemu
> +itself, for example because you must have cross compilers installed
> +when building firmware for other architectures. So qemu ships
> +prebuilt firmware binaries for convenience reasons.
> +
> +
> +directories
> +-----------
> +
> +pc-bios/
> + Firmware binaries.
> + Also other files like keymaps and logos which are copied to
> + $prefix/share/qemu by "make install".
> +
> +pc-bios/optionrom/
> + Firmware sources, part of the qemu project.
> +
> +roms/
> + Firmware sources, third-party projects, as git submodules.
> +
> +
> +third-party git repos
> +---------------------
> +
> +For third party firmware sources it is recommended to have a git
> +mirror on git.qemu.org. In case the firmware license is GPL the git
> +mirror is mandatory for GPL compilance reasons: We ship binaries, so
> +we must provide sources too.
> +
> +
> +building the firmware
> +---------------------
> +
> +Firmware builds should be done using rules in roms/Makefile. That
> +serves as documentation how the firmware is built, and it also makes
> +firmware updates easier for the maintainer.
> +
> +"make -C roms" prints a list of firmware build targets.
> +"make -C roms $target" kicks a build.
> +
> +
> +notes for specific firmwares
> +----------------------------
> +
> +ipxe: see https://wiki.qemu.org/IpxeDownstreamForQemu
> --
> 2.9.3
>
>
--
Eduardo
- Re: [Qemu-devel] [PATCH] docs: add firmware.txt,
Eduardo Habkost <=