config root man

/* $FreeBSD: release/9.1.0/sys/ia64/include/bootinfo.h 220313 2011-04-03 23:49:20Z marcel $ */
/*-
 * 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.
 */

struct bootinfo {
	uint64_t	bi_magic;		/* BOOTINFO_MAGIC */
#define	BOOTINFO_MAGIC		0xdeadbeeffeedface
	uint64_t	bi_version;		/* version 1 */
	uint64_t	bi_spare[3];		/* was: name of booted kernel */
	uint32_t	bi_itr_used;		/* Number of ITR and DTR ... */
	uint32_t	bi_dtr_used;		/* ... entries used. */
	uint32_t	bi_text_mapped;		/* Size of text mapped. */
	uint32_t	bi_data_mapped;		/* Size of data mapped. */
	uint64_t	bi_pbvm_pgtbl;		/* PA of PBVM page table. */
	uint64_t	bi_hcdp;		/* DIG64 HCDP table */
	uint64_t	bi_fpswa;		/* FPSWA interface */
	uint64_t	bi_boothowto;		/* value for boothowto */
	uint64_t	bi_systab;		/* pa of EFI system table */
	uint64_t	bi_memmap;		/* pa of EFI memory map */
	uint64_t	bi_memmap_size;		/* size of EFI memory map */
	uint64_t	bi_memdesc_size;	/* sizeof EFI memory desc */
	uint32_t	bi_memdesc_version;	/* EFI memory desc version */
	uint32_t	bi_pbvm_pgtblsz;	/* PBVM page table size. */
	uint64_t	bi_symtab;		/* start of kernel sym table */
	uint64_t	bi_esymtab;		/* end of kernel sym table */
	uint64_t	bi_kernend;		/* end of kernel space */
	uint64_t	bi_envp;		/* environment */
	uint64_t	bi_modulep;		/* preloaded modules */
};

extern struct bootinfo *bootinfo;