Hi

Am 24.11.25 um 18:04 schrieb Ard Biesheuvel:
On Mon, 24 Nov 2025 at 18:01, Ard Biesheuvel <[email protected]> wrote:
On Mon, 24 Nov 2025 at 17:52, Thomas Zimmermann <[email protected]> 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 <[email protected]>
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.

Ah, ok. That's my misconception. I was thinking that we have to support external boot loaders building a config table.

I'll just extend the existing UUID then.

Best regards
Thomas


--
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Frankenstr. 146, 90461 Nürnberg, Germany, www.suse.com
GF: Jochen Jaser, Andrew McDonald, Werner Knoblich, (HRB 36809, AG Nürnberg)


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