[Qemu-devel] [PATCH] migration: expose qemu_announce_self() via qmp

[Germano Veit Michel]

qemu_announce_self() is triggered by qemu at the end of migrations
to update the network regarding the path to the guest l2addr.

however it is also useful when there is a network change such as
an active bond slave swap. Essentially, it's the same as a migration
from a network perspective - the guest moves to a different point
in the network topology.

this exposes the function via qmp.

Signed-off-by: Germano Veit Michel <address@hidden>
---
 migration/savevm.c |  5 +++++
 qapi-schema.json   | 18 ++++++++++++++++++
 2 files changed, 23 insertions(+)

diff --git a/migration/savevm.c b/migration/savevm.c
index f9c06e9..7a817dc 100644
--- a/migration/savevm.c
+++ b/migration/savevm.c
@@ -143,6 +143,11 @@ void qemu_announce_self(void)
     qemu_announce_self_once(&timer);
 }

+void qmp_announce_self(Error **errp)
+{
+    qemu_announce_self();
+}
+
 /***********************************************************/
 /* savevm/loadvm support */

diff --git a/qapi-schema.json b/qapi-schema.json
index ce20f16..6854266 100644
--- a/qapi-schema.json
+++ b/qapi-schema.json
@@ -4786,3 +4786,21 @@
 # Since: 2.7
 ##
 { 'command': 'query-hotpluggable-cpus', 'returns': ['HotpluggableCPU'] }
+
+##
+# @announce-self:
+#
+# Trigger generation of broadcast RARP frames to update network switches.
+# This can be useful when network bonds fail-over the active slave.
+#
+# Arguments: None.
+#
+# Example:
+#
+# -> { "execute": "announce-self" }
+# <- { "return": {} }
+#
+# Since: 2.9
+##
+{ 'command': 'announce-self' }
+
-- 
2.9.3