qemu

FORK: QEMU emulator
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e820_memory_layout.h (722B)

      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 
     19 struct e820_entry {
     20     uint64_t address;
     21     uint64_t length;
     22     uint32_t type;
     23 } QEMU_PACKED __attribute((__aligned__(4)));
     24 
     25 extern struct e820_entry *e820_table;
     26 
     27 int e820_add_entry(uint64_t address, uint64_t length, uint32_t type);
     28 int e820_get_num_entries(void);
     29 bool e820_get_entry(int index, uint32_t type,
     30                     uint64_t *address, uint64_t *length);
     31 
     32 
     33 
     34 #endif