numa: add -numa node,memdev= option
[qemu.git] / include / sysemu / memory_mapping.h
1 /*
2 * QEMU memory mapping
3 *
4 * Copyright Fujitsu, Corp. 2011, 2012
5 *
6 * Authors:
7 * Wen Congyang <wency@cn.fujitsu.com>
8 *
9 * This work is licensed under the terms of the GNU GPL, version 2 or later.
10 * See the COPYING file in the top-level directory.
11 *
12 */
13
14 #ifndef MEMORY_MAPPING_H
15 #define MEMORY_MAPPING_H
16
17 #include "qemu/queue.h"
18 #include "qemu/typedefs.h"
19
20 typedef struct GuestPhysBlock {
21 /* visible to guest, reflects PCI hole, etc */
22 hwaddr target_start;
23
24 /* implies size */
25 hwaddr target_end;
26
27 /* points into host memory */
28 uint8_t *host_addr;
29
30 QTAILQ_ENTRY(GuestPhysBlock) next;
31 } GuestPhysBlock;
32
33 /* point-in-time snapshot of guest-visible physical mappings */
34 typedef struct GuestPhysBlockList {
35 unsigned num;
36 QTAILQ_HEAD(GuestPhysBlockHead, GuestPhysBlock) head;
37 } GuestPhysBlockList;
38
39 /* The physical and virtual address in the memory mapping are contiguous. */
40 typedef struct MemoryMapping {
41 hwaddr phys_addr;
42 target_ulong virt_addr;
43 ram_addr_t length;
44 QTAILQ_ENTRY(MemoryMapping) next;
45 } MemoryMapping;
46
47 struct MemoryMappingList {
48 unsigned int num;
49 MemoryMapping *last_mapping;
50 QTAILQ_HEAD(, MemoryMapping) head;
51 };
52
53 /*
54 * add or merge the memory region [phys_addr, phys_addr + length) into the
55 * memory mapping's list. The region's virtual address starts with virt_addr,
56 * and is contiguous. The list is sorted by phys_addr.
57 */
58 void memory_mapping_list_add_merge_sorted(MemoryMappingList *list,
59 hwaddr phys_addr,
60 hwaddr virt_addr,
61 ram_addr_t length);
62
63 void memory_mapping_list_free(MemoryMappingList *list);
64
65 void memory_mapping_list_init(MemoryMappingList *list);
66
67 void guest_phys_blocks_free(GuestPhysBlockList *list);
68 void guest_phys_blocks_init(GuestPhysBlockList *list);
69 void guest_phys_blocks_append(GuestPhysBlockList *list);
70
71 void qemu_get_guest_memory_mapping(MemoryMappingList *list,
72 const GuestPhysBlockList *guest_phys_blocks,
73 Error **errp);
74
75 /* get guest's memory mapping without do paging(virtual address is 0). */
76 void qemu_get_guest_simple_memory_mapping(MemoryMappingList *list,
77 const GuestPhysBlockList *guest_phys_blocks);
78
79 void memory_mapping_filter(MemoryMappingList *list, int64_t begin,
80 int64_t length);
81
82 #endif