[Qemu-devel] [PATCH 06/12] qmp: Expose qemu_announce_self as a qmp command

[Vladislav Yasevich]

Add a qmp command that can trigger guest announcements.

Based on work of Germano Veit Michel <address@hidden>

Signed-off-by: Vladislav Yasevich <address@hidden>
---
 migration/savevm.c | 14 ++++++++++++++
 qapi-schema.json   | 19 +++++++++++++++++++
 2 files changed, 33 insertions(+)

diff --git a/migration/savevm.c b/migration/savevm.c
index a4097c9..b55ce6a 100644
--- a/migration/savevm.c
+++ b/migration/savevm.c
@@ -265,6 +265,20 @@ void qemu_announce_self(AnnounceParameters *params)
     qemu_announce_self_once(timer);
 }
 
+void qmp_announce_self(bool has_params, AnnounceParameters *params,
+                       Error **errp)
+{
+    AnnounceParameters announce_params;
+
+    memcpy(&announce_params, qemu_get_announce_params(),
+           sizeof(announce_params));
+
+    if (has_params)
+        qemu_set_announce_parameters(&announce_params, params);
+
+    qemu_announce_self(&announce_params);
+}
+
 /***********************************************************/
 /* savevm/loadvm support */
 
diff --git a/qapi-schema.json b/qapi-schema.json
index 2030087..126b09d 100644
--- a/qapi-schema.json
+++ b/qapi-schema.json
@@ -654,6 +654,25 @@
   'returns': 'AnnounceParameters' }
 
 ##
+# @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"
+#      "arguments": { "announce-rounds": 5 } }
+# <- { "return": {} }
+#
+# Since: 2.10
+##
+{ 'command': 'announce-self',
+  'data' : {'*params': 'AnnounceParameters'} }
+
+##
 # @MigrationStats:
 #
 # Detailed migration status.
-- 
2.7.4