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.
75 lines
2.6 KiB
C
75 lines
2.6 KiB
C
/*-
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* Copyright (c) 2006 Marcel Moolenaar
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _LIBIA64_H_
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#define _LIBIA64_H_
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#include <bootstrap.h>
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#include <ia64/include/bootinfo.h>
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#include <machine/vmparam.h>
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#define IS_LEGACY_KERNEL() (ia64_legacy_kernel)
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/*
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* Portability functions provided by the loader
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* implementation specific to the platform.
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*/
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vm_paddr_t ia64_platform_alloc(vm_offset_t, vm_size_t);
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void ia64_platform_free(vm_offset_t, vm_paddr_t, vm_size_t);
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int ia64_platform_bootinfo(struct bootinfo *, struct bootinfo **);
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int ia64_platform_enter(const char *);
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/*
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* Functions and variables provided by the ia64 common code
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* and shared by all loader implementations.
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*/
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extern u_int ia64_legacy_kernel;
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extern uint64_t *ia64_pgtbl;
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extern uint32_t ia64_pgtblsz;
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int ia64_autoload(void);
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int ia64_bootinfo(struct preloaded_file *, struct bootinfo **);
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uint64_t ia64_loadaddr(u_int, void *, uint64_t);
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#ifdef __elfN
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void ia64_loadseg(Elf_Ehdr *, Elf_Phdr *, uint64_t);
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#else
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void ia64_loadseg(void *, void *, uint64_t);
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#endif
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ssize_t ia64_copyin(const void *, vm_offset_t, size_t);
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ssize_t ia64_copyout(vm_offset_t, void *, size_t);
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ssize_t ia64_readin(int, vm_offset_t, size_t);
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void *ia64_va2pa(vm_offset_t, size_t *);
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char *ia64_fmtdev(struct devdesc *);
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int ia64_getdev(void **, const char *, const char **);
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int ia64_setcurrdev(struct env_var *, int, const void *);
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#endif /* !_LIBIA64_H_ */
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