| 1 | /* ----------------------------------------------------------------------- * |
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| 2 | * |
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| 3 | * Copyright 2009 Pierre-Alexandre Meyer |
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| 4 | * |
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| 5 | * Some parts borrowed from meminfo.c32: |
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| 6 | * |
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| 7 | * Copyright 2003-2009 H. Peter Anvin - All Rights Reserved |
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| 8 | * Copyright 2009 Intel Corporation; author: H. Peter Anvin |
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| 9 | * |
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| 10 | * Some parts borrowed from Linux: |
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| 11 | * |
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| 12 | * Copyright (C) 1991, 1992 Linus Torvalds |
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| 13 | * Copyright 2007 rPath, Inc. - All Rights Reserved |
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| 14 | * Copyright 2009 Intel Corporation; author H. Peter Anvin |
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| 15 | * |
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| 16 | * This file is part of Syslinux, and is made available under |
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| 17 | * the terms of the GNU General Public License version 2. |
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| 18 | * |
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| 19 | * ----------------------------------------------------------------------- */ |
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| 20 | |
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| 21 | #ifndef _MEMORY_H_ |
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| 22 | #define _MEMORY_H_ |
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| 23 | #include <stdint.h> |
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| 24 | |
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| 25 | #define E820MAX 128 |
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| 26 | #define E820_RAM 1 |
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| 27 | #define E820_RESERVED 2 |
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| 28 | #define E820_ACPI 3 /* usable as RAM once ACPI tables have been read */ |
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| 29 | #define E820_NVS 4 |
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| 30 | |
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| 31 | #define RES_START 0xa0000 |
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| 32 | #define RES_END 0x100000 |
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| 33 | |
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| 34 | struct e820entry { |
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| 35 | uint64_t addr; /* start of memory segment */ |
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| 36 | uint64_t size; /* size of memory segment */ |
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| 37 | uint64_t type; /* type of memory segment */ |
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| 38 | } __attribute__ ((packed)); |
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| 39 | |
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| 40 | const char *const e820_types[5]; |
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| 41 | |
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| 42 | void get_type(int, char *, int); |
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| 43 | void detect_memory_e820(struct e820entry *desc, int size_map, int *size_found); |
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| 44 | int detect_memory_e801(int *, int *); |
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| 45 | int detect_memory_88(int *); |
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| 46 | |
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| 47 | /* The following stuff could be merge once the addr_t will be set to 64bits. |
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| 48 | * syslinux_scan_memory can be used for that purpose */ |
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| 49 | unsigned long memsize_e820(struct e820entry *e820, int e820_nr); |
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| 50 | int sanitize_e820_map(struct e820entry *orig_map, struct e820entry *new_bios, |
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| 51 | short old_nr); |
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| 52 | unsigned long detect_memsize(void); |
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| 53 | #endif |
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