bootinfo.h revision 86587
1/* $FreeBSD: head/sys/ia64/include/bootinfo.h 86587 2001-11-19 07:07:09Z peter $ */ 2/* 3 * Copyright (c) 1994, 1995, 1996 Carnegie-Mellon University. 4 * All rights reserved. 5 * 6 * Author: Chris G. Demetriou 7 * 8 * Permission to use, copy, modify and distribute this software and 9 * its documentation is hereby granted, provided that both the copyright 10 * notice and this permission notice appear in all copies of the 11 * software, derivative works or modified versions, and any portions 12 * thereof, and that both notices appear in supporting documentation. 13 * 14 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 15 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 16 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 17 * 18 * Carnegie Mellon requests users of this software to return to 19 * 20 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU 21 * School of Computer Science 22 * Carnegie Mellon University 23 * Pittsburgh PA 15213-3890 24 * 25 * any improvements or extensions that they make and grant Carnegie the 26 * rights to redistribute these changes. 27 */ 28 29/* 30 * The boot program passes a pointer (in the boot environment virtual 31 * address address space; "BEVA") to a bootinfo to the kernel using 32 * the following convention: 33 * 34 * a0 contains first free page frame number 35 * a1 contains page number of current level 1 page table 36 * if a2 contains BOOTINFO_MAGIC and a4 is nonzero: 37 * a3 contains pointer (BEVA) to bootinfo 38 * a4 contains bootinfo version number 39 * if a2 contains BOOTINFO_MAGIC and a4 contains 0 (backward compat): 40 * a3 contains pointer (BEVA) to bootinfo version 41 * (u_long), then the bootinfo 42 */ 43 44#define BOOTINFO_MAGIC 0xdeadbeeffeedface 45 46struct bootinfo { 47 u_int64_t bi_magic; /* BOOTINFO_MAGIC */ 48 u_int64_t bi_version; /* version 1 */ 49 u_int64_t bi_spare[7]; /* was: name of booted kernel */ 50 u_int64_t bi_fpswa; /* FPSWA interface */ 51 u_int64_t bi_boothowto; /* value for boothowto */ 52 u_int64_t bi_systab; /* pa of EFI system table */ 53 u_int64_t bi_memmap; /* pa of EFI memory map */ 54 u_int64_t bi_memmap_size; /* size of EFI memory map */ 55 u_int64_t bi_memdesc_size; /* sizeof EFI memory desc */ 56 u_int32_t bi_memdesc_version; /* EFI memory desc version */ 57 u_int64_t bi_symtab; /* start of kernel sym table */ 58 u_int64_t bi_esymtab; /* end of kernel sym table */ 59 u_int64_t bi_kernend; /* end of kernel space */ 60 u_int64_t bi_envp; /* environment */ 61 u_int64_t bi_modulep; /* preloaded modules */ 62}; 63 64extern struct bootinfo bootinfo; 65