Re: [PATCH v2 08/10] efi: Support EDID information

Ard Biesheuvel
2025-11-24T17:04:51Z

On Mon, 24 Nov 2025 at 18:01, Ard Biesheuvel <ardb@kernel.org> wrote:
>
> On Mon, 24 Nov 2025 at 17:52, Thomas Zimmermann <tzimmermann@suse.de> wrote:
> >
> > Add LINUX_EFI_PRIMARY_DISPLAY_TABLE_GUID to the list of config-table
> > UUIDs. Read sysfb_primary_display from the entry. The UUID has been
> > generated with uuidgen.
> >
> > Still support LINUX_EFI_SCREEN_INFO_TABLE_GUID as fallback in case an
> > older boot loader invokes the kernel.
> >
> > If CONFIG_FIRMWARE_EDID=n, EDID information is disabled.
> >
> > Make the Kconfig symbol CONFIG_FIRMWARE_EDID available with EFI. Setting
> > the value to 'n' disables EDID support.
> >
> > Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
>
> Why are we adding a new config table again?
>
>

Note that LINUX_EFI_SCREEN_INFO_TABLE_GUID is internal ABI only
between the EFI stub and the core kernel.