We can call this qmp command to start/stop replication outside of qemu.
Like Xen colo need this function.
Signed-off-by: Zhang Chen <zhangchen.f...@cn.fujitsu.com>
Signed-off-by: Wen Congyang <wencongy...@gmail.com>
Reviewed-by: Eric Blake <ebl...@redhat.com>
Reviewed-by: Stefano Stabellini <sstabell...@kernel.org>
Reviewed-by: zhanghailiang <zhang.zhanghaili...@huawei.com>
---
migration/colo.c | 23 +++++++++++++++++++++++
qapi-schema.json | 25 +++++++++++++++++++++++++
2 files changed, 48 insertions(+)
diff --git a/migration/colo.c b/migration/colo.c
index 93c85c5..6fc2ade 100644
--- a/migration/colo.c
+++ b/migration/colo.c
@@ -19,6 +19,8 @@
#include "qemu/error-report.h"
#include "qapi/error.h"
#include "migration/failover.h"
+#include "replication.h"
+#include "qmp-commands.h"
#define COLO_BUFFER_BASE_SIZE (4 * 1024 * 1024)
@@ -104,6 +106,27 @@ void colo_do_failover(MigrationState *s)
}
}
+void qmp_xen_set_replication(bool enable, bool primary,
+ bool has_failover, bool failover,
+ Error **errp)
+{
+ ReplicationMode mode = primary ?
+ REPLICATION_MODE_PRIMARY :
+ REPLICATION_MODE_SECONDARY;
+
+ if (has_failover && enable) {
+ error_setg(errp, "Parameter 'failover' is only for"
+ " stopping replication");
+ return;
+ }
+
+ if (enable) {
+ replication_start_all(mode, errp);
+ } else {
+ replication_stop_all(failover, failover ? NULL : errp);
+ }
+}
+
static void colo_send_message(QEMUFile *f, COLOMessage msg,
Error **errp)
{
diff --git a/qapi-schema.json b/qapi-schema.json
index cbdffdd..9445b93 100644
--- a/qapi-schema.json
+++ b/qapi-schema.json
@@ -5906,6 +5906,31 @@
{ 'command': 'xen-load-devices-state', 'data': {'filename': 'str'} }
##
+# @xen-set-replication:
+#
+# Enable or disable replication.
+#
+# @enable: true to enable, false to disable.
+#
+# @primary: true for primary or false for secondary.
+#
+# @failover: #optional true to do failover, false to stop. but cannot be
+# specified if 'enable' is true. default value is false.
+#
+# Returns: nothing.
+#
+# Example:
+#
+# -> { "execute": "xen-set-replication",
+# "arguments": {"enable": true, "primary": false} }
+# <- { "return": {} }
+#
+# Since: 2.9
+##
+{ 'command': 'xen-set-replication',
+ 'data': { 'enable': 'bool', 'primary': 'bool', '*failover' : 'bool' } }
+
+##
# @GICCapability:
#
# The struct describes capability for a specific GIC (Generic
--
2.7.4
