From 3d6123e69ab879c72ff489afc5bf93ef0b7a94ce Mon Sep 17 00:00:00 2001
From: Michael Brown
Date: Tue, 8 Mar 2005 18:53:11 +0000
Subject: Initial revision

---
 src/include/elf_boot.h | 84 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 84 insertions(+)
 create mode 100644 src/include/elf_boot.h

(limited to 'src/include/elf_boot.h')

diff --git a/src/include/elf_boot.h b/src/include/elf_boot.h
new file mode 100644
index 000000000..878a870a8
--- /dev/null
+++ b/src/include/elf_boot.h
@@ -0,0 +1,84 @@
+#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;
+
+typedef struct Elf_Bhdr
+{
+	Elf_Word b_signature; /* "0x0E1FB007" */
+	Elf_Word b_size;
+	Elf_Half b_checksum;
+	Elf_Half b_records;
+} Elf_Bhdr;
+
+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. */
+
+
+/* Notes that are passed to a loaded image */
+/* For standard 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 */
-- 
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