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-rw-r--r--migration/migration.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/migration/migration.h b/migration/migration.h
index c351872360..4cb1cb6fa8 100644
--- a/migration/migration.h
+++ b/migration/migration.h
@@ -276,6 +276,12 @@ struct MigrationState {
          */
         bool          rp_thread_created;
         QemuSemaphore rp_sem;
+        /*
+         * We post to this when we got one PONG from dest. So far it's an
+         * easy way to know the main channel has successfully established
+         * on dest QEMU.
+         */
+        QemuSemaphore rp_pong_acks;
     } rp_state;
 
     double mbps;