diff options
Diffstat (limited to 'usr/src/boot/sys/i386/include/bootinfo.h')
| -rw-r--r-- | usr/src/boot/sys/i386/include/bootinfo.h | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/usr/src/boot/sys/i386/include/bootinfo.h b/usr/src/boot/sys/i386/include/bootinfo.h new file mode 100644 index 0000000000..ef595d5f52 --- /dev/null +++ b/usr/src/boot/sys/i386/include/bootinfo.h @@ -0,0 +1,119 @@ +/*- + * 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 + +/* + * 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 */ + uint32_t bi_memdesc_version; /* EFI memory desc version */ + uint64_t bi_memdesc_size; /* sizeof EFI memory desc */ + uint64_t bi_memmap; /* pa of EFI memory map */ + uint64_t bi_memmap_size; /* size of EFI memory map */ + uint64_t bi_hcdp; /* DIG64 HCDP table */ + uint64_t bi_fpswa; /* FPSWA interface */ + uint64_t bi_systab; /* pa of EFI system table */ +}; + +#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) (8) (4) (8) (8) + * -------------------------------- + * |MA | SLICE | UN| PART | TYPE | + * -------------------------------- + */ +#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, slice, unit, partition) \ + (((type) << B_TYPESHIFT) | ((slice) << B_SLICESHIFT) | \ + ((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_ */ |