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-rw-r--r--util/mkelfImage/include/elf_boot.h105
1 files changed, 105 insertions, 0 deletions
diff --git a/util/mkelfImage/include/elf_boot.h b/util/mkelfImage/include/elf_boot.h
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+++ b/util/mkelfImage/include/elf_boot.h
@@ -0,0 +1,105 @@
+#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 */