freebsd-dev/sys/ia64/include/bootinfo.h
Peter Wemm 1ccc5e6c4e Use some (now) spare space for passing through a pointer to the FPSWA
Interface provided by EFI (Floating Point SoftWare Assist).
2001-11-19 07:07:09 +00:00

65 lines
2.4 KiB
C

/* $FreeBSD$ */
/*
* Copyright (c) 1994, 1995, 1996 Carnegie-Mellon University.
* All rights reserved.
*
* Author: Chris G. Demetriou
*
* Permission to use, copy, modify and distribute this software and
* its documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie the
* rights to redistribute these changes.
*/
/*
* The boot program passes a pointer (in the boot environment virtual
* address address space; "BEVA") to a bootinfo to the kernel using
* the following convention:
*
* a0 contains first free page frame number
* a1 contains page number of current level 1 page table
* if a2 contains BOOTINFO_MAGIC and a4 is nonzero:
* a3 contains pointer (BEVA) to bootinfo
* a4 contains bootinfo version number
* if a2 contains BOOTINFO_MAGIC and a4 contains 0 (backward compat):
* a3 contains pointer (BEVA) to bootinfo version
* (u_long), then the bootinfo
*/
#define BOOTINFO_MAGIC 0xdeadbeeffeedface
struct bootinfo {
u_int64_t bi_magic; /* BOOTINFO_MAGIC */
u_int64_t bi_version; /* version 1 */
u_int64_t bi_spare[7]; /* was: name of booted kernel */
u_int64_t bi_fpswa; /* FPSWA interface */
u_int64_t bi_boothowto; /* value for boothowto */
u_int64_t bi_systab; /* pa of EFI system table */
u_int64_t bi_memmap; /* pa of EFI memory map */
u_int64_t bi_memmap_size; /* size of EFI memory map */
u_int64_t bi_memdesc_size; /* sizeof EFI memory desc */
u_int32_t bi_memdesc_version; /* EFI memory desc version */
u_int64_t bi_symtab; /* start of kernel sym table */
u_int64_t bi_esymtab; /* end of kernel sym table */
u_int64_t bi_kernend; /* end of kernel space */
u_int64_t bi_envp; /* environment */
u_int64_t bi_modulep; /* preloaded modules */
};
extern struct bootinfo bootinfo;