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12#include "qemu/osdep.h"
13#include "sysemu/hostmem.h"
14#include "qapi/error.h"
15#include "qom/object_interfaces.h"
16
17#define TYPE_MEMORY_BACKEND_RAM "memory-backend-ram"
18
19
20static void
21ram_backend_memory_alloc(HostMemoryBackend *backend, Error **errp)
22{
23 char *path;
24
25 if (!backend->size) {
26 error_setg(errp, "can't create backend with size 0");
27 return;
28 }
29
30 path = object_get_canonical_path_component(OBJECT(backend));
31 memory_region_init_ram_nomigrate(&backend->mr, OBJECT(backend), path,
32 backend->size, errp);
33 g_free(path);
34}
35
36static void
37ram_backend_class_init(ObjectClass *oc, void *data)
38{
39 HostMemoryBackendClass *bc = MEMORY_BACKEND_CLASS(oc);
40
41 bc->alloc = ram_backend_memory_alloc;
42}
43
44static const TypeInfo ram_backend_info = {
45 .name = TYPE_MEMORY_BACKEND_RAM,
46 .parent = TYPE_MEMORY_BACKEND,
47 .class_init = ram_backend_class_init,
48};
49
50static void register_types(void)
51{
52 type_register_static(&ram_backend_info);
53}
54
55type_init(register_types);
56