0355a8b24b
services or PAL procedures. The new implementation is based on specific functions that are known to be called in certain scenarios only. This in particular fixes the PAL call to obtain information about translation registers. In general, the new implementation does not bank on virtual addresses being direct-mapped and will work when the kernel uses PBVM. When new scenarios need to be supported, new functions are added if the existing functions cannot be changed to handle the new scenario. If a single generic implementation is possible, it will become clear in due time. While here, change bootinfo to a pointer type in anticipation of future development.
52 lines
2.0 KiB
C
52 lines
2.0 KiB
C
/* $FreeBSD$ */
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/*-
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* Copyright (c) 1994, 1995, 1996 Carnegie-Mellon University.
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* All rights reserved.
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*
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* Author: Chris G. Demetriou
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*
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* Permission to use, copy, modify and distribute this software and
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* its documentation is hereby granted, provided that both the copyright
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* notice and this permission notice appear in all copies of the
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* software, derivative works or modified versions, and any portions
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* thereof, and that both notices appear in supporting documentation.
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*
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* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
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* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
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* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
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*
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* Carnegie Mellon requests users of this software to return to
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*
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* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
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* School of Computer Science
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* Carnegie Mellon University
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* Pittsburgh PA 15213-3890
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*
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* any improvements or extensions that they make and grant Carnegie the
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* rights to redistribute these changes.
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*/
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struct bootinfo {
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uint64_t bi_magic; /* BOOTINFO_MAGIC */
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#define BOOTINFO_MAGIC 0xdeadbeeffeedface
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uint64_t bi_version; /* version 1 */
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uint64_t bi_spare[5]; /* was: name of booted kernel */
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uint64_t bi_pbvm_pgtbl; /* PA of PBVM page table. */
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uint64_t bi_hcdp; /* DIG64 HCDP table */
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uint64_t bi_fpswa; /* FPSWA interface */
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uint64_t bi_boothowto; /* value for boothowto */
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uint64_t bi_systab; /* pa of EFI system table */
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uint64_t bi_memmap; /* pa of EFI memory map */
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uint64_t bi_memmap_size; /* size of EFI memory map */
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uint64_t bi_memdesc_size; /* sizeof EFI memory desc */
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uint32_t bi_memdesc_version; /* EFI memory desc version */
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uint32_t bi_pbvm_pgtblsz; /* PBVM page table size. */
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uint64_t bi_symtab; /* start of kernel sym table */
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uint64_t bi_esymtab; /* end of kernel sym table */
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uint64_t bi_kernend; /* end of kernel space */
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uint64_t bi_envp; /* environment */
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uint64_t bi_modulep; /* preloaded modules */
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};
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extern struct bootinfo *bootinfo;
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