diff options
| -rw-r--r-- | hw/mem/pc-dimm.c | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/hw/mem/pc-dimm.c b/hw/mem/pc-dimm.c index b4937fe547..3cced63de3 100644 --- a/hw/mem/pc-dimm.c +++ b/hw/mem/pc-dimm.c @@ -43,6 +43,21 @@ static void pc_dimm_get_size(Object *obj, Visitor *v, void *opaque, visit_type_int(v, &value, name, errp); } +static void pc_dimm_check_memdev_is_busy(Object *obj, const char *name, + Object *val, Error **errp) +{ + MemoryRegion *mr; + + mr = host_memory_backend_get_memory(MEMORY_BACKEND(val), errp); + if (memory_region_is_mapped(mr)) { + char *path = object_get_canonical_path_component(val); + error_setg(errp, "can't use already busy memdev: %s", path); + g_free(path); + } else { + qdev_prop_allow_set_link_before_realize(obj, name, val, errp); + } +} + static void pc_dimm_init(Object *obj) { PCDIMMDevice *dimm = PC_DIMM(obj); @@ -51,7 +66,7 @@ static void pc_dimm_init(Object *obj) NULL, NULL, NULL, &error_abort); object_property_add_link(obj, PC_DIMM_MEMDEV_PROP, TYPE_MEMORY_BACKEND, (Object **)&dimm->hostmem, - qdev_prop_allow_set_link_before_realize, + pc_dimm_check_memdev_is_busy, OBJ_PROP_LINK_UNREF_ON_RELEASE, &error_abort); } |