1 files changed, 12 insertions, 0 deletions
diff --git a/migration/fd.c b/migration/fd.c
index 449adaa2de..aab5189eac 100644
--- a/migration/fd.c
+++ b/migration/fd.c
@@ -20,6 +20,8 @@
 #include "file.h"
 #include "migration.h"
 #include "monitor/monitor.h"
+#include "qemu/error-report.h"
+#include "qemu/sockets.h"
 #include "io/channel-util.h"
 #include "trace.h"
 
@@ -32,6 +34,11 @@ void fd_start_outgoing_migration(MigrationState *s, const char *fdname, Error **
         return;
     }
 
+    if (!fd_is_socket(fd)) {
+        warn_report("fd: migration to a file is deprecated."
+                    " Use file: instead.");
+    }
+
     trace_migration_fd_outgoing(fd);
     ioc = qio_channel_new_fd(fd, errp);
     if (!ioc) {
@@ -61,6 +68,11 @@ void fd_start_incoming_migration(const char *fdname, Error **errp)
         return;
     }
 
+    if (!fd_is_socket(fd)) {
+        warn_report("fd: migration to a file is deprecated."
+                    " Use file: instead.");
+    }
+
     trace_migration_fd_incoming(fd);
 
     ioc = qio_channel_new_fd(fd, errp);