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[Qemu-devel] [PATCH 3/3] Add a new qmp command to do checkpoint, get rep


From: Zhang Chen
Subject: [Qemu-devel] [PATCH 3/3] Add a new qmp command to do checkpoint, get replication error
Date: Thu, 1 Dec 2016 14:06:39 +0800

We can call this qmp command to do checkpoint outside of qemu.
Like Xen colo need this function.

Signed-off-by: Zhang Chen <address@hidden>
Signed-off-by: Wen Congyang <address@hidden>
---
 docs/qmp-commands.txt | 24 ++++++++++++++++++++++++
 migration/colo.c      | 10 ++++++++++
 qapi-schema.json      | 22 ++++++++++++++++++++++
 3 files changed, 56 insertions(+)

diff --git a/docs/qmp-commands.txt b/docs/qmp-commands.txt
index c6e8c43..1c7a887 100644
--- a/docs/qmp-commands.txt
+++ b/docs/qmp-commands.txt
@@ -449,6 +449,30 @@ Example:
      "arguments": {"enable": true, "primary": false} }
 <- { "return": {} }
 
+xen-get-replication-error
+-------
+
+Get replication error that occurs when vm is running
+
+Arguments: None
+
+Example:
+
+-> { "execute": "xen-get-replication-error" }
+<- { "return": {} }
+
+xen-do-checkpoint
+-------
+
+Do checkpoint
+
+Arguments: None
+
+Example:
+
+-> { "execute": "xen-do-checkpoint" }
+<- { "return": {} }
+
 migrate
 -------
 
diff --git a/migration/colo.c b/migration/colo.c
index 007e699..92b2ef4 100644
--- a/migration/colo.c
+++ b/migration/colo.c
@@ -126,6 +126,16 @@ void qmp_xen_set_replication(bool enable, bool primary,
     }
 }
 
+void qmp_xen_get_replication_error(Error **errp)
+    {
+        replication_get_error_all(errp);
+    }
+
+void qmp_xen_do_checkpoint(Error **errp)
+    {
+        replication_do_checkpoint_all(errp);
+    }
+
 static void colo_send_message(QEMUFile *f, COLOMessage msg,
                               Error **errp)
 {
diff --git a/qapi-schema.json b/qapi-schema.json
index 3658764..0a90c39 100644
--- a/qapi-schema.json
+++ b/qapi-schema.json
@@ -4694,6 +4694,28 @@
   'data': { 'enable': 'bool', 'primary': 'bool', '*failover' : 'bool' } }
 
 ##
+# @xen-get-replication-error
+#
+# Get replicatin error that occurs when the vm is running
+#
+# Returns: nothing
+#
+# Since: 2.8
+##
+{ 'command': 'xen-get-replication-error' }
+
+##
+# @xen-do-checkpoint
+#
+# Do checkpoint
+#
+# Returns: nothing
+#
+# Since: 2.8
+##
+{ 'command': 'xen-do-checkpoint' }
+
+##
 # @GICCapability:
 #
 # The struct describes capability for a specific GIC (Generic
-- 
2.7.4






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