| /* |
| * QEMU Host Memory Backend |
| * |
| * Copyright (C) 2013-2014 Red Hat Inc |
| * |
| * Authors: |
| * Igor Mammedov <imammedo@redhat.com> |
| * |
| * This work is licensed under the terms of the GNU GPL, version 2 or later. |
| * See the COPYING file in the top-level directory. |
| */ |
| #include "qemu/osdep.h" |
| #include "sysemu/hostmem.h" |
| #include "qapi/error.h" |
| #include "qom/object_interfaces.h" |
| |
| #define TYPE_MEMORY_BACKEND_RAM "memory-backend-ram" |
| |
| |
| static void |
| ram_backend_memory_alloc(HostMemoryBackend *backend, Error **errp) |
| { |
| char *path; |
| |
| if (!backend->size) { |
| error_setg(errp, "can't create backend with size 0"); |
| return; |
| } |
| |
| path = object_get_canonical_path_component(OBJECT(backend)); |
| memory_region_init_ram(&backend->mr, OBJECT(backend), path, |
| backend->size, errp); |
| g_free(path); |
| } |
| |
| static void |
| ram_backend_class_init(ObjectClass *oc, void *data) |
| { |
| HostMemoryBackendClass *bc = MEMORY_BACKEND_CLASS(oc); |
| |
| bc->alloc = ram_backend_memory_alloc; |
| } |
| |
| static const TypeInfo ram_backend_info = { |
| .name = TYPE_MEMORY_BACKEND_RAM, |
| .parent = TYPE_MEMORY_BACKEND, |
| .class_init = ram_backend_class_init, |
| }; |
| |
| static void register_types(void) |
| { |
| type_register_static(&ram_backend_info); |
| } |
| |
| type_init(register_types); |