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/*-
* Copyright (C) 1994 by Rodney W. Grimes, Milwaukie, Oregon 97222
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer as
* the first lines of this file unmodified.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Rodney W. Grimes.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY RODNEY W. GRIMES ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL RODNEY W. GRIMES BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _MACHINE_BOOTINFO_H_
#define _MACHINE_BOOTINFO_H_
/* Only change the version number if you break compatibility. */
#define BOOTINFO_VERSION 1
#define N_BIOS_GEOM 8
#define MIPS_BOOTINFO_MAGIC 0xCDEACDEA
/* Extended OLV bootinfo struct. The data area includes a list of named
OIDs and associated data values. The format is:
NUL-terminated dotted-string name
2 byte length, in big-endian order
LENGTH bytes of data
[...]
The two magic fields are used to guard against other bootloaders that
may place other sorts of data here. */
struct bootinfo_ext {
#define BOOTINFO_EXT_MAGIC1 0x55aa00ff
unsigned int magic1;
unsigned char *data;
unsigned int size;
#define BOOTINFO_EXT_MAGIC2 0x32719187
unsigned int magic2;
};
#define BOOTINFO_EXT_MAX_SIZE 16384
/*
* A zero bootinfo field often means that there is no info available.
* Flags are used to indicate the validity of fields where zero is a
* normal value.
*/
struct bootinfo {
u_int32_t bi_version;
u_int32_t bi_kernelname; /* represents a char * */
u_int32_t bi_nfs_diskless; /* struct nfs_diskless * */
/* End of fields that are always present. */
#define bi_endcommon bi_n_bios_used
u_int32_t bi_n_bios_used;
u_int32_t bi_bios_geom[N_BIOS_GEOM];
u_int32_t bi_size;
u_int8_t bi_memsizes_valid;
u_int8_t bi_bios_dev; /* bootdev BIOS unit number */
u_int8_t bi_pad[2];
u_int32_t bi_basemem;
u_int32_t bi_extmem;
u_int32_t bi_symtab; /* struct symtab * */
u_int32_t bi_esymtab; /* struct symtab * */
/* Items below only from advanced bootloader */
u_int32_t bi_kernend; /* end of kernel space */
u_int32_t bi_envp; /* environment */
u_int32_t bi_modulep; /* preloaded modules */
};
#ifdef _KERNEL
extern struct bootinfo bootinfo;
#endif
/*
* Constants for converting boot-style device number to type,
* adaptor (uba, mba, etc), unit number and partition number.
* Type (== major device number) is in the low byte
* for backward compatibility. Except for that of the "magic
* number", each mask applies to the shifted value.
* Format:
* (4) (4) (4) (4) (8) (8)
* --------------------------------
* |MA | AD| CT| UN| PART | TYPE |
* --------------------------------
*/
#define B_ADAPTORSHIFT 24
#define B_ADAPTORMASK 0x0f
#define B_ADAPTOR(val) (((val) >> B_ADAPTORSHIFT) & B_ADAPTORMASK)
#define B_CONTROLLERSHIFT 20
#define B_CONTROLLERMASK 0xf
#define B_CONTROLLER(val) (((val)>>B_CONTROLLERSHIFT) & B_CONTROLLERMASK)
#define B_SLICESHIFT 20
#define B_SLICEMASK 0xff
#define B_SLICE(val) (((val)>>B_SLICESHIFT) & B_SLICEMASK)
#define B_UNITSHIFT 16
#define B_UNITMASK 0xf
#define B_UNIT(val) (((val) >> B_UNITSHIFT) & B_UNITMASK)
#define B_PARTITIONSHIFT 8
#define B_PARTITIONMASK 0xff
#define B_PARTITION(val) (((val) >> B_PARTITIONSHIFT) & B_PARTITIONMASK)
#define B_TYPESHIFT 0
#define B_TYPEMASK 0xff
#define B_TYPE(val) (((val) >> B_TYPESHIFT) & B_TYPEMASK)
#define B_MAGICMASK 0xf0000000
#define B_DEVMAGIC 0xa0000000
#define MAKEBOOTDEV(type, adaptor, controller, unit, partition) \
(((type) << B_TYPESHIFT) | ((adaptor) << B_ADAPTORSHIFT) | \
((controller) << B_CONTROLLERSHIFT) | ((unit) << B_UNITSHIFT) | \
((partition) << B_PARTITIONSHIFT) | B_DEVMAGIC)
#define BASE_SLICE 2
#define COMPATIBILITY_SLICE 0
#define MAX_SLICES 32
#define WHOLE_DISK_SLICE 1
#endif /* !_MACHINE_BOOTINFO_H_ */
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