1/*
2 * QEMU Host Memory Backend
3 *
4 * Copyright (C) 2013-2014 Red Hat Inc
5 *
6 * Authors:
7 * Igor Mammedov <imammedo@redhat.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#include "qemu/osdep.h"
14#include "sysemu/hostmem.h"
15#include "qapi/error.h"
16#include "qemu/module.h"
17#include "qom/object_interfaces.h"
18
19#define TYPE_MEMORY_BACKEND_RAM "memory-backend-ram"
20
21static void
22ram_backend_memory_alloc(HostMemoryBackend *backend, Error **errp)
23{
24 char *name;
25
26 if (!backend->size) {
27 error_setg(errp, "can't create backend with size 0");
28 return;
29 }
30
31 name = host_memory_backend_get_name(backend);
32 memory_region_init_ram_shared_nomigrate(&backend->mr, OBJECT(backend), name,
33 backend->size, backend->share, errp);
34 g_free(name);
35}
36
37static void
38ram_backend_class_init(ObjectClass *oc, void *data)
39{
40 HostMemoryBackendClass *bc = MEMORY_BACKEND_CLASS(oc);
41
42 bc->alloc = ram_backend_memory_alloc;
43}
44
45static const TypeInfo ram_backend_info = {
46 .name = TYPE_MEMORY_BACKEND_RAM,
47 .parent = TYPE_MEMORY_BACKEND,
48 .class_init = ram_backend_class_init,
49};
50
51static void register_types(void)
52{
53 type_register_static(&ram_backend_info);
54}
55
56type_init(register_types);
57