1 files changed, 11 insertions, 0 deletions
diff --git a/softmmu/qdev-monitor.c b/softmmu/qdev-monitor.c
index 4851de5..e49d977 100644
--- a/softmmu/qdev-monitor.c
+++ b/softmmu/qdev-monitor.c
@@ -42,6 +42,7 @@
 #include "qemu/cutils.h"
 #include "hw/qdev-properties.h"
 #include "hw/clock.h"
+#include "hw/boards.h"
 
 /*
  * Aliases were a bad idea from the start.  Let's keep them
@@ -254,6 +255,16 @@ static DeviceClass *qdev_get_device_class(const char **driver, Error **errp)
         return NULL;
     }
 
+    if (object_class_dynamic_cast(oc, TYPE_SYS_BUS_DEVICE)) {
+        /* sysbus devices need to be allowed by the machine */
+        MachineClass *mc = MACHINE_CLASS(object_get_class(qdev_get_machine()));
+        if (!device_type_is_dynamic_sysbus(mc, *driver)) {
+            error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "driver",
+                       "a dynamic sysbus device type for the machine");
+            return NULL;
+        }
+    }
+
     return dc;
 }