898de6111a
Some simple implementation of the MultiBoot protocol may not pass a memory map (MULTIBOOT_FLAGS_MMAP missing in the flags) but just the two values for low and high memory, indicated by the MULTIBOOT_FLAGS_MEMINFO flag. Support those kind of boot loaders too, instead of falling back to the hard-coded values in lib_get_sysinfo(). Tested with a multiboot enhanced version of FILO. Change-Id: I22cf9e3ec0075aff040390bd177c5cd22d439b81 Signed-off-by: Mathias Krause <minipli@googlemail.com> Reviewed-on: https://review.coreboot.org/18350 Tested-by: build bot (Jenkins) Reviewed-by: Nico Huber <nico.h@gmx.de>
78 lines
2.3 KiB
C
78 lines
2.3 KiB
C
/*
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* This file is part of the libpayload project.
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*
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* Copyright (C) 2008 Advanced Micro Devices, Inc.
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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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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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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 MULTIBOOT_TABLES_H_
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#define MULTIBOOT_TABLES_H_
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#include <arch/types.h>
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#define MULTIBOOT_MAGIC 0x2BADB002UL
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#define MULTIBOOT_FLAGS_MMAP (1 << 6)
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#define MULTIBOOT_FLAGS_CMDLINE (1 << 2)
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#define MULTIBOOT_FLAGS_MEMINFO (1 << 0)
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struct multiboot_header {
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u32 flags;
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u32 mem_lower;
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u32 mem_higher;
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u32 boot_device;
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u32 cmdline;
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u32 mods_count;
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u32 mods_addr;
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u32 syms[4];
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u32 mmap_length;
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u32 mmap_addr;
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u32 drives_length;
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u32 drives_addr;
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u32 config_table;
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u32 boot_loader_name;
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u32 apm_table;
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u32 vbe_control_info;
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u32 vbe_mode_info;
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u32 vbe_mode;
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u32 vbe_interface_seg;
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u32 vbe_interface_off;
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u32 vbe_interface_len;
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};
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struct multiboot_mmap {
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u32 size;
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u64 addr;
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u64 length;
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u32 type;
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} __attribute((packed));
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#endif
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