From e41ef37ddfe763b829b5b44662ce29e26549b42c Mon Sep 17 00:00:00 2001 From: Thomas Zimmermann Date: Wed, 15 Oct 2025 17:56:34 +0200 Subject: [PATCH] efi/libstub: x86: Store EDID in boot_params Retrieve the GOP device's EDID information in the kernel's boot parameters. Makes the data avaialble to kernel graphics code and drives, such as efidrm. With efidrm, the EDID is now also available to user-space compositors via standard DRM interfaces. Signed-off-by: Thomas Zimmermann Reviewed-by: Javier Martinez Canillas Signed-off-by: Ard Biesheuvel --- drivers/firmware/efi/libstub/x86-stub.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/firmware/efi/libstub/x86-stub.c b/drivers/firmware/efi/libstub/x86-stub.c index 6e51cca726841..cef32e2c82d8f 100644 --- a/drivers/firmware/efi/libstub/x86-stub.c +++ b/drivers/firmware/efi/libstub/x86-stub.c @@ -487,8 +487,9 @@ static void setup_quirks(struct boot_params *boot_params) static void setup_graphics(struct boot_params *boot_params) { struct screen_info *si = memset(&boot_params->screen_info, 0, sizeof(*si)); + struct edid_info *edid = memset(&boot_params->edid_info, 0, sizeof(*edid)); - efi_setup_graphics(si, NULL); + efi_setup_graphics(si, edid); } static void __noreturn efi_exit(efi_handle_t handle, efi_status_t status) -- 2.47.3