Re: [PATCH v2 08/10] efi: Support EDID information
From: Ard Biesheuvel <ardb@kernel.org>
Date: 2025-11-24 17:04:51
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dri-devel, linux-arm-kernel, linux-efi, linux-hyperv, linux-pci, linux-riscv, lkml, loongarch
On Mon, 24 Nov 2025 at 18:01, Ard Biesheuvel [off-list ref] wrote:
On Mon, 24 Nov 2025 at 17:52, Thomas Zimmermann [off-list ref] wrote:quoted
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.