| 1 | /* |
| 2 | * QEMU BIOS e820 routines |
| 3 | * |
| 4 | * Copyright (c) 2003-2004 Fabrice Bellard |
| 5 | * |
| 6 | * SPDX-License-Identifier: MIT |
| 7 | */ |
| 8 | |
| 9 | #ifndef HW_I386_E820_MEMORY_LAYOUT_H |
| 10 | #define HW_I386_E820_MEMORY_LAYOUT_H |
| 11 | |
| 12 | /* e820 types */ |
| 13 | #define E820_RAM 1 |
| 14 | #define E820_RESERVED 2 |
| 15 | #define E820_ACPI 3 |
| 16 | #define E820_NVS 4 |
| 17 | #define E820_UNUSABLE 5 |
| 18 | #define E820_SOFT_RESERVED 0xefffffff |
| 19 | |
| 20 | struct e820_entry { |
| 21 | uint64_t address; |
| 22 | uint64_t length; |
| 23 | uint32_t type; |
| 24 | } QEMU_PACKED __attribute((__aligned__(4))); |
| 25 | |
| 26 | void e820_add_entry(uint64_t address, uint64_t length, uint32_t type); |
| 27 | bool e820_get_entry(int index, uint32_t type, |
| 28 | uint64_t *address, uint64_t *length); |
| 29 | int e820_get_table(struct e820_entry **table); |
| 30 | |
| 31 | #endif |