mirror of
https://github.com/fail0verflow/switch-coreboot.git
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464ef4613d
all header files. This closes #40, as I think we don't need to invest time to fix this in LinuxBIOSv2, but only in LinuxBIOSv3. Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de> Acked-by: Ronald G. Minnich <rminnich@gmail.com> git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@332 f3766cd6-281f-0410-b1cd-43a5c92072e9
106 lines
3.4 KiB
C
106 lines
3.4 KiB
C
/*
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* Copyright (C) 2002 Eric Biederman
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA, 02110-1301 USA
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*
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*/
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#ifndef ELF_BOOT_H
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#define ELF_BOOT_H
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#include <types.h>
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/* This defines the structure of a table of parameters useful for ELF
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* bootable images. These parameters are all passed and generated
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* by the bootloader to the booted image. For simplicity and
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* consistency the Elf Note format is reused.
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*
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* All of the information must be Position Independent Data.
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* That is it must be safe to relocate the whole ELF boot parameter
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* block without changing the meaning or correctnes of the data.
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* Additionally it must be safe to permute the order of the ELF notes
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* to any possible permutation without changing the meaning or correctness
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* of the data.
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*
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*/
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#define ELF_HEAD_SIZE (8*1024)
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#define ELF_BOOT_MAGIC 0x0E1FB007
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typedef u16 Elf_Half;
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typedef u32 Elf_Word;
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typedef u64 Elf_Xword;
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typedef struct
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{
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Elf_Word b_signature; /* "0x0E1FB007" */
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Elf_Word b_size;
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Elf_Half b_checksum;
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Elf_Half b_records;
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} Elf_Bhdr;
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typedef struct
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{
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Elf_Word n_namesz; /* Length of the note's name. */
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Elf_Word n_descsz; /* Length of the note's descriptor. */
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Elf_Word n_type; /* Type of the note. */
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} Elf_Nhdr;
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/* For standard notes n_namesz must be zero */
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/* All of the following standard note types provide a single null
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* terminated string in the descriptor.
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*/
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#define EBN_FIRMWARE_TYPE 0x00000001
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/* On platforms that support multiple classes of firmware this field
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* specifies the class of firmware you are loaded under.
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*/
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#define EBN_BOOTLOADER_NAME 0x00000002
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/* This specifies just the name of the bootloader for easy comparison */
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#define EBN_BOOTLOADER_VERSION 0x00000003
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/* This specifies the version of the bootlader */
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#define EBN_COMMAND_LINE 0x00000004
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/* This specifies a command line that can be set by user interaction,
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* and is provided as a free form string to the loaded image.
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*/
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/* Standardized Elf image notes for booting... The name for all of these is ELFBoot */
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#define ELF_NOTE_BOOT "ELFBoot"
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#define EIN_PROGRAM_NAME 0x00000001
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/* The program in this ELF file */
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#define EIN_PROGRAM_VERSION 0x00000002
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/* The version of the program in this ELF file */
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#define EIN_PROGRAM_CHECKSUM 0x00000003
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/* ip style checksum of the memory image. */
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/* Linux image notes for booting... The name for all of these is Linux */
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#define LINUX_NOTE_BOOT "Linux"
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#define LIN_COMMAND_LINE 0x00000001
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/* The command line to pass to the loaded kernel. */
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#define LIN_ROOT_DEV 0x00000002
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/* The root dev to pass to the loaded kernel. */
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#define LIN_RAMDISK_FLAGS 0x00000003
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/* Various old ramdisk flags */
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#define LIN_INITRD_START 0x00000004
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/* Start of the ramdisk in bytes */
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#define LIN_INITRD_SIZE 0x00000005
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/* Size of the ramdisk in bytes */
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#endif /* ELF_BOOT_H */
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