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The Linux kernel's struct bootparams provides a field at offset 0x140 for storing an EDID header. Copy the video adapter's data to the field. The edid_info field was added in 2003 (see "[FBDEV] EDID support from OpenFirmware on PPC platoforms and from the BIOS on intel platforms."), but only got useable in 2004 (see "[PATCH] Fix EDID_INFO in zero-page"). The boot protocol was at version 2.03 at that time. The field was never used much, but with the recent addition of the efidrm and vesadrm drivers to the kernel, it becomes much more useful. As with the initial screen setup, these drivers can make use of the provided EDID information for basic display output. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Neal Gompa <ngompa13@gmail.com> Reviewed-by: Michael Chang <mchang@suse.com> Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
This is GRUB 2, the second version of the GRand Unified Bootloader. GRUB 2 is rewritten from scratch to make GNU GRUB cleaner, safer, more robust, more powerful, and more portable. See the file NEWS for a description of recent changes to GRUB 2. See the file INSTALL for instructions on how to build and install the GRUB 2 data and program files. See the file MAINTAINERS for information about the GRUB maintainers, etc. If you found a security vulnerability in the GRUB please check the SECURITY file to get more information how to properly report this kind of bugs to the maintainers. Please visit the official web page of GRUB 2, for more information. The URL is <http://www.gnu.org/software/grub/grub.html>. More extensive documentation is available in the Info manual, accessible using 'info grub' after building and installing GRUB 2. There are a number of important user-visible differences from the first version of GRUB, now known as GRUB Legacy. For a summary, please see: info grub Introduction 'Changes from GRUB Legacy'