| #ifndef ELF_BOOT_H |
| #define ELF_BOOT_H |
| |
| |
| /* This defines the structure of a table of parameters useful for ELF |
| * bootable images. These parameters are all passed and generated |
| * by the bootloader to the booted image. For simplicity and |
| * consistency the Elf Note format is reused. |
| * |
| * All of the information must be Position Independent Data. |
| * That is it must be safe to relocate the whole ELF boot parameter |
| * block without changing the meaning or correctnes of the data. |
| * Additionally it must be safe to permute the order of the ELF notes |
| * to any possible permutation without changing the meaning or correctness |
| * of the data. |
| * |
| */ |
| |
| #define ELF_BHDR_MAGIC 0x0E1FB007 |
| |
| #ifndef ASSEMBLY |
| #include <stdint.h> |
| typedef uint16_t Elf_Half; |
| typedef uint32_t Elf_Word; |
| |
| /* |
| * Elf boot notes... |
| */ |
| |
| typedef struct Elf_Bhdr |
| { |
| Elf_Word b_signature; /* "0x0E1FB007" */ |
| Elf_Word b_size; |
| Elf_Half b_checksum; |
| Elf_Half b_records; |
| } Elf_Bhdr; |
| |
| /* |
| * ELF Notes. |
| */ |
| |
| typedef struct Elf_Nhdr |
| { |
| Elf_Word n_namesz; /* Length of the note's name. */ |
| Elf_Word n_descsz; /* Length of the note's descriptor. */ |
| Elf_Word n_type; /* Type of the note. */ |
| } Elf_Nhdr; |
| |
| #endif /* ASSEMBLY */ |
| |
| /* Standardized Elf image notes for booting... The name for all of these is ELFBoot */ |
| #define ELF_NOTE_BOOT "ELFBoot" |
| |
| #define EIN_PROGRAM_NAME 0x00000001 |
| /* The program in this ELF file */ |
| #define EIN_PROGRAM_VERSION 0x00000002 |
| /* The version of the program in this ELF file */ |
| #define EIN_PROGRAM_CHECKSUM 0x00000003 |
| /* ip style checksum of the memory image. */ |
| |
| |
| /* Linux image notes for booting... The name for all of these is Linux */ |
| |
| #define LIN_COMMAND_LINE 0x00000001 |
| /* The command line to pass to the loaded kernel. */ |
| #define LIN_ROOT_DEV 0x00000002 |
| /* The root dev to pass to the loaded kernel. */ |
| #define LIN_RAMDISK_FLAGS 0x00000003 |
| /* Various old ramdisk flags */ |
| #define LIN_INITRD_START 0x00000004 |
| /* Start of the ramdisk in bytes */ |
| #define LIN_INITRD_SIZE 0x00000005 |
| /* Size of the ramdisk in bytes */ |
| |
| /* Notes that are passed to a loaded image */ |
| /* For the standard elf boot notes n_namesz must be zero */ |
| #define EBN_FIRMWARE_TYPE 0x00000001 |
| /* ASCIZ name of the platform firmware. */ |
| #define EBN_BOOTLOADER_NAME 0x00000002 |
| /* This specifies just the ASCIZ name of the bootloader */ |
| #define EBN_BOOTLOADER_VERSION 0x00000003 |
| /* This specifies the version of the bootloader as an ASCIZ string */ |
| #define EBN_COMMAND_LINE 0x00000004 |
| /* This specifies a command line that can be set by user interaction, |
| * and is provided as a free form ASCIZ string to the loaded image. |
| */ |
| #define EBN_NOP 0x00000005 |
| /* A note nop note has no meaning, useful for inserting explicit padding */ |
| #define EBN_LOADED_IMAGE 0x00000006 |
| /* An ASCIZ string naming the loaded image */ |
| |
| |
| /* Etherboot specific notes */ |
| #define EB_PARAM_NOTE "Etherboot" |
| #define EB_IA64_SYSTAB 0x00000001 |
| #define EB_IA64_MEMMAP 0x00000002 |
| #define EB_IA64_FPSWA 0x00000003 |
| #define EB_IA64_CONINFO 0x00000004 |
| #define EB_BOOTP_DATA 0x00000005 |
| #define EB_HEADER 0x00000006 |
| #define EB_IA64_IMAGE_HANDLE 0x00000007 |
| #define EB_I386_MEMMAP 0x00000008 |
| |
| |
| #endif /* ELF_BOOT_H */ |
