[Qemu-devel] [V5 PATCH 1/4] net: announce self after vm start

[Jason Wang]

qemu_announce_self() were moved to vm_start(). This is because we may
want to let guest to send the gratuitous packets. After this change,
we need to check the previous run state (RUN_STATE_INMIGRATE) to
decide whether an announcement is needed.

Signed-off-by: Jason Wang <jasow...@redhat.com>
---
 migration.c |    1 -
 vl.c        |    4 ++++
 2 files changed, 4 insertions(+), 1 deletions(-)

diff --git a/migration.c b/migration.c
index 00fa1e3..1ce6b5c 100644
--- a/migration.c
+++ b/migration.c
@@ -88,7 +88,6 @@ void process_incoming_migration(QEMUFile *f)
         fprintf(stderr, "load of migration failed\n");
         exit(0);
     }
-    qemu_announce_self();
     DPRINTF("successfully loaded vm state\n");
 
     /* Make sure all file formats flush their mutable metadata */
diff --git a/vl.c b/vl.c
index 65f11f2..4742b1b 100644
--- a/vl.c
+++ b/vl.c
@@ -1261,11 +1261,15 @@ void vm_state_notify(int running, RunState state)
 void vm_start(void)
 {
     if (!runstate_is_running()) {
+        RunState prev_run_state = current_run_state;
         cpu_enable_ticks();
         runstate_set(RUN_STATE_RUNNING);
         vm_state_notify(1, RUN_STATE_RUNNING);
         resume_all_vcpus();
         monitor_protocol_event(QEVENT_RESUME, NULL);
+        if (prev_run_state == RUN_STATE_INMIGRATE) {
+            qemu_announce_self();
+        }
     }
 }