1 files changed, 23 insertions, 0 deletions
diff --git a/migration/vmstate-types.c b/migration/vmstate-types.c
index d70d573dbd..0319c3568b 100644
--- a/migration/vmstate-types.c
+++ b/migration/vmstate-types.c
@@ -314,6 +314,29 @@ const VMStateInfo vmstate_info_uint64 = {
     .put  = put_uint64,
 };
 
+/* File descriptor communicated via SCM_RIGHTS */
+
+static int get_fd(QEMUFile *f, void *pv, size_t size,
+                  const VMStateField *field)
+{
+    int32_t *v = pv;
+    *v = qemu_file_get_fd(f);
+    return 0;
+}
+
+static int put_fd(QEMUFile *f, void *pv, size_t size,
+                  const VMStateField *field, JSONWriter *vmdesc)
+{
+    int32_t *v = pv;
+    return qemu_file_put_fd(f, *v);
+}
+
+const VMStateInfo vmstate_info_fd = {
+    .name = "fd",
+    .get  = get_fd,
+    .put  = put_fd,
+};
+
 static int get_nullptr(QEMUFile *f, void *pv, size_t size,
                        const VMStateField *field)