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-rw-r--r--migration/migration.h22
1 files changed, 22 insertions, 0 deletions
diff --git a/migration/migration.h b/migration/migration.h
index 663415fe48..786d971ce2 100644
--- a/migration/migration.h
+++ b/migration/migration.h
@@ -90,6 +90,17 @@ struct MigrationState
     QEMUBH *cleanup_bh;
     QEMUFile *to_dst_file;
 
+    /* bytes already send at the beggining of current interation */
+    uint64_t iteration_initial_bytes;
+    /* time at the start of current iteration */
+    int64_t iteration_start_time;
+    /*
+     * The final stage happens when the remaining data is smaller than
+     * this threshold; it's calculated from the requested downtime and
+     * measured bandwidth
+     */
+    int64_t threshold_size;
+
     /* params from 'migrate-set-parameters' */
     MigrationParameters parameters;
 
@@ -103,11 +114,22 @@ struct MigrationState
     } rp_state;
 
     double mbps;
+    /* Timestamp when recent migration starts (ms) */
+    int64_t start_time;
+    /* Total time used by latest migration (ms) */
     int64_t total_time;
+    /* Timestamp when VM is down (ms) to migrate the last stuff */
+    int64_t downtime_start;
     int64_t downtime;
     int64_t expected_downtime;
     bool enabled_capabilities[MIGRATION_CAPABILITY__MAX];
     int64_t setup_time;
+    /*
+     * Whether guest was running when we enter the completion stage.
+     * If migration is interrupted by any reason, we need to continue
+     * running the guest on source.
+     */
+    bool vm_was_running;
 
     /* Flag set once the migration has been asked to enter postcopy */
     bool start_postcopy;