2 * This file and its contents are supplied under the terms of the
3 * Common Development and Distribution License ("CDDL"), version 1.0.
4 * You may only use this file in accordance with the terms of version
7 * A full copy of the text of the CDDL should have accompanied this
8 * source. A copy of the CDDL is also available via the Internet at
9 * http://www.illumos.org/license/CDDL.
13 * Copyright 2018 Toomas Soome <tsoome@me.com>
19 * Provide fake multiboot header to support versioning and partition
20 * start. The fake MB header is used by versioning code located in
21 * usr/src/cmd/boot/common. Since the BIOS bootblock is stored on raw disk,
22 * this fake header is used to store the location of the version info block.
23 * Additionally we use it to store partition start_sector, so we can identify
24 * our root file system partition. Note we are using LBA64 here.
28 #include <sys/multiboot.h>
30 .globl mb_header, start_sector
35 .long MULTIBOOT_HEADER_MAGIC
36 .long MULTIBOOT_AOUT_KLUDGE
37 .long -(MULTIBOOT_HEADER_MAGIC + MULTIBOOT_AOUT_KLUDGE)
38 .long 0 /* header_addr */
39 .long 0 /* load_addr */
40 .long 0 /* load_end_addr */
41 start_sector: .long 0 /* partition LBA */