diff options
Diffstat (limited to 'sys/powerpc')
-rw-r--r-- | sys/powerpc/include/bootinfo.h | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/sys/powerpc/include/bootinfo.h b/sys/powerpc/include/bootinfo.h index 36b3943..970987d 100644 --- a/sys/powerpc/include/bootinfo.h +++ b/sys/powerpc/include/bootinfo.h @@ -1,3 +1,62 @@ +/* $Id$ */ +/* + * 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_v1 { + u_long ssym; /* 0: start of kernel sym table */ + u_long esym; /* 8: end of kernel sym table */ + char boot_flags[64]; /* 16: boot flags */ + char booted_kernel[64]; /* 80: name of booted kernel */ + void *hwrpb; /* 144: hwrpb pointer (BEVA) */ + u_long hwrpbsize; /* 152: size of hwrpb data */ + int (*cngetc) __P((void)); /* 160: console getc pointer */ + void (*cnputc) __P((int)); /* 168: console putc pointer */ + void (*cnpollc) __P((int)); /* 176: console pollc pointer */ + u_long pad[9]; /* 184: rsvd for future use */ + /* 256: total size */ +}; + /* * Kernel-internal structure used to hold important bits of boot * information. NOT to be used by boot blocks. |