1 files changed, 19 insertions, 0 deletions
diff --git a/hw/core/qdev-properties.c b/hw/core/qdev-properties.c
index c34aac6ebc..357b8761b5 100644
--- a/hw/core/qdev-properties.c
+++ b/hw/core/qdev-properties.c
@@ -428,6 +428,25 @@ const PropertyInfo qdev_prop_int64 = {
     .set_default_value = qdev_propinfo_set_default_value_int,
 };
 
+static void set_uint64_checkmask(Object *obj, Visitor *v, const char *name,
+                      void *opaque, Error **errp)
+{
+    Property *prop = opaque;
+    uint64_t *ptr = object_field_prop_ptr(obj, prop);
+
+    visit_type_uint64(v, name, ptr, errp);
+    if (*ptr & ~prop->bitmask) {
+        error_setg(errp, "Property value for '%s' has bits outside mask '0x%" PRIx64 "'",
+                   name, prop->bitmask);
+    }
+}
+
+const PropertyInfo qdev_prop_uint64_checkmask = {
+    .name  = "uint64",
+    .get   = get_uint64,
+    .set   = set_uint64_checkmask,
+};
+
 /* --- string --- */
 
 static void release_string(Object *obj, const char *name, void *opaque)