43 lines
921 B
C
43 lines
921 B
C
/*
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* QEMU BIOS e820 routines
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*
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* Copyright (c) 2003-2004 Fabrice Bellard
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*
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* SPDX-License-Identifier: MIT
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*/
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#ifndef HW_I386_E820_MEMORY_LAYOUT_H
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#define HW_I386_E820_MEMORY_LAYOUT_H
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/* e820 types */
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#define E820_RAM 1
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#define E820_RESERVED 2
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#define E820_ACPI 3
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#define E820_NVS 4
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#define E820_UNUSABLE 5
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#define E820_NR_ENTRIES 16
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struct e820_entry {
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uint64_t address;
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uint64_t length;
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uint32_t type;
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} QEMU_PACKED __attribute((__aligned__(4)));
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struct e820_table {
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uint32_t count;
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struct e820_entry entry[E820_NR_ENTRIES];
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} QEMU_PACKED __attribute((__aligned__(4)));
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extern struct e820_table e820_reserve;
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extern struct e820_entry *e820_table;
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int e820_add_entry(uint64_t address, uint64_t length, uint32_t type);
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int e820_get_num_entries(void);
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bool e820_get_entry(int index, uint32_t type,
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uint64_t *address, uint64_t *length);
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#endif
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