[Qemu-devel] [PULL V2 12/13] hmp: Add hmp_announce_self

[Jason Wang <jasowang@redhat.com>]

From: "Dr. David Alan Gilbert" <dgilbert@redhat.com>

Add an HMP command to trigger self annocements.
Unlike the QMP command (which takes a set of parameters), the HMP
command reuses the set of parameters used for migration.

Signend-off-by: Vladislav Yasevich <vyasevic@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
---
 hmp-commands.hx  | 16 ++++++++++++++++
 hmp.c            |  5 +++++
 hmp.h            |  1 +
 tests/test-hmp.c |  1 +
 4 files changed, 23 insertions(+)

diff --git a/hmp-commands.hx b/hmp-commands.hx
index e5fbc2c..9b40359 100644
--- a/hmp-commands.hx
+++ b/hmp-commands.hx
@@ -939,6 +939,22 @@ stops because the size limit is reached.
 ETEXI
 
     {
+        .name       = "announce_self",
+        .args_type  = "",
+        .params     = "",
+        .help       = "Trigger GARP/RARP announcements",
+        .cmd        = hmp_announce_self,
+    },
+
+STEXI
+@item announce_self
+@findex announce_self
+Trigger a round of GARP/RARP broadcasts; this is useful for explicitly updating the
+network infrastructure after a reconfiguration or some forms of migration.
+The timings of the round are set by the migration announce parameters.
+ETEXI
+
+    {
         .name       = "migrate",
         .args_type  = "detach:-d,blk:-b,inc:-i,resume:-r,uri:s",
         .params     = "[-d] [-b] [-i] [-r] uri",
diff --git a/hmp.c b/hmp.c
index f3db0bf..5f13b16 100644
--- a/hmp.c
+++ b/hmp.c
@@ -1570,6 +1570,11 @@ void hmp_info_snapshots(Monitor *mon, const QDict *qdict)
 
 }
 
+void hmp_announce_self(Monitor *mon, const QDict *qdict)
+{
+    qmp_announce_self(migrate_announce_params(), NULL);
+}
+
 void hmp_migrate_cancel(Monitor *mon, const QDict *qdict)
 {
     qmp_migrate_cancel(NULL);
diff --git a/hmp.h b/hmp.h
index 5f1addc..e0f32f0 100644
--- a/hmp.h
+++ b/hmp.h
@@ -46,6 +46,7 @@ void hmp_sync_profile(Monitor *mon, const QDict *qdict);
 void hmp_system_reset(Monitor *mon, const QDict *qdict);
 void hmp_system_powerdown(Monitor *mon, const QDict *qdict);
 void hmp_exit_preconfig(Monitor *mon, const QDict *qdict);
+void hmp_announce_self(Monitor *mon, const QDict *qdict);
 void hmp_cpu(Monitor *mon, const QDict *qdict);
 void hmp_memsave(Monitor *mon, const QDict *qdict);
 void hmp_pmemsave(Monitor *mon, const QDict *qdict);
diff --git a/tests/test-hmp.c b/tests/test-hmp.c
index 1a3a9c5..8c49d2f 100644
--- a/tests/test-hmp.c
+++ b/tests/test-hmp.c
@@ -20,6 +20,7 @@
 static int verbose;
 
 static const char *hmp_cmds[] = {
+    "announce_self",
     "boot_set ndc",
     "chardev-add null,id=testchardev1",
     "chardev-send-break testchardev1",
-- 
2.5.0