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76ceb3c6ee
boundaries. For good measure, align all other objects to cache lines boundaries. Use the new arch_loadseg I/F to keep track of kernel text and data so that we can wire as much of it as is possible. It is the responsibility of the kernel to link critical (read IVT related) code and data at the front of the respective segment so that it's covered by TRs before the kernel has a chance to add more translations. Use a better way of determining whether we're loading a legacy kernel or not. We can't check for the presence of the PBVM page table, because we may have unloaded that kernel and loaded an older (legacy) kernel after that. Simply use the latest load address for it.
56 lines
2.2 KiB
C
56 lines
2.2 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[3]; /* was: name of booted kernel */
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uint32_t bi_itr_used; /* Number of ITR and DTR ... */
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uint32_t bi_dtr_used; /* ... entries used. */
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uint32_t bi_text_mapped; /* Size of text mapped. */
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uint32_t bi_data_mapped; /* Size of data mapped. */
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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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