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b72ae900d4
The way we got the kernel metadata pointer was by calling preload_search_by_type with one of the following three: "elf kernel", "elf32 kernel" and "elf64 kernel". Which one(s) we used wasn't consistent though. Sometimes we would only try "elf kernel", and other times we would try one of the latter two if the first failed. However, the loader only ever sets "elf kernel" as the kernel type. Now, the kmdp is a global, preload_kmdp, and it's initialized using preload_initkmdp in machdep.c (or machdep_boot.c on arm/64). preload_initkmdp takes a single boolean argument that tells us whether not finding the kmdp is fatal or not. Reviewed by: imp, kib Pull Request: https://github.com/freebsd/freebsd-src/pull/1394
55 lines
2.1 KiB
C
55 lines
2.1 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright (c) 2013 Roger Pau Monné <roger.pau@citrix.com>
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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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* 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 AND CONTRIBUTORS AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef __X86_INIT_H__
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#define __X86_INIT_H__
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/*
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* Struct containing pointers to init functions whose
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* implementation is run time selectable. Selection can be made,
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* for example, based on detection of a BIOS variant or
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* hypervisor environment.
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*/
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struct init_ops {
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void (*parse_preload_data)(u_int64_t);
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void (*early_clock_source_init)(void);
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void (*early_delay)(int);
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void (*parse_memmap)(vm_paddr_t *, int *);
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};
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extern struct init_ops init_ops;
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/* Knob to disable acpi_cpu devices */
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extern bool acpi_cpu_disabled;
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/* Knob to disable acpi_hpet device */
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extern bool acpi_hpet_disabled;
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/* Knob to disable acpi_timer device */
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extern bool acpi_timer_disabled;
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#endif /* __X86_INIT_H__ */
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