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[Qemu-devel] [PATCH for-2.9 V4 1/2] Add a new qmp command to start/stop
From: |
Zhang Chen |
Subject: |
[Qemu-devel] [PATCH for-2.9 V4 1/2] Add a new qmp command to start/stop replication |
Date: |
Fri, 16 Dec 2016 10:46:42 +0800 |
We can call this qmp command to start/stop replication 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 | 18 ++++++++++++++++++
migration/colo.c | 23 +++++++++++++++++++++++
qapi-schema.json | 19 +++++++++++++++++++
3 files changed, 60 insertions(+)
diff --git a/docs/qmp-commands.txt b/docs/qmp-commands.txt
index abf210a..a8e9eb6 100644
--- a/docs/qmp-commands.txt
+++ b/docs/qmp-commands.txt
@@ -432,6 +432,24 @@ Example:
"arguments": { "enable": true } }
<- { "return": {} }
+xen-set-replication
+-------------------
+
+Enable or disable replication.
+
+Arguments:
+
+- "enable": Enable it or disable it.
+- "primary": True for primary or false for secondary.
+- "failover": Enable failover when stopping replication, but cannot be
+ specified if 'enable' is true (optional, default false).
+
+Example:
+
+-> { "execute": "xen-set-replicate",
+ "arguments": {"enable": true, "primary": false} }
+<- { "return": {} }
+
migrate
-------
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 f3e9bfc..78802f4 100644
--- a/qapi-schema.json
+++ b/qapi-schema.json
@@ -4676,6 +4676,25 @@
{ '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.
+#
+# 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
- [Qemu-devel] [PATCH for-2.9 V4 2/2] Add a new qmp command to do checkpoint, get replication error, (continued)
- [Qemu-devel] [PATCH for-2.9 V4 2/2] Add a new qmp command to do checkpoint, get replication error, Zhang Chen, 2016/12/15
- Re: [Qemu-devel] [PATCH for-2.9 V4 2/2] Add a new qmp command to do checkpoint, get replication error, Eric Blake, 2016/12/20
- Re: [Qemu-devel] [PATCH for-2.9 V4 2/2] Add a new qmp command to do checkpoint, get replication error, Zhang Chen, 2016/12/21
- Re: [Qemu-devel] [PATCH for-2.9 V4 2/2] Add a new qmp command to do checkpoint, get replication error, Eric Blake, 2016/12/21
- Re: [Qemu-devel] [PATCH for-2.9 V4 2/2] Add a new qmp command to do checkpoint, get replication error, Zhang Chen, 2016/12/22
- Re: [Qemu-devel] [PATCH for-2.9 V4 2/2] Add a new qmp command to do checkpoint, get replication error, addr_cc, 2016/12/22
- Re: [Qemu-devel] [PATCH for-2.9 V4 2/2] Add a new qmp command to do checkpoint, get replication error, Eric Blake, 2016/12/22
- Re: [Qemu-devel] [PATCH for-2.9 V4 2/2] Add a new qmp command to do checkpoint, get replication error, Zhang Chen, 2016/12/23
Re: [Qemu-devel] [PATCH for-2.9 V4 2/2] Add a new qmp command to do checkpoint, get replication error, Stefano Stabellini, 2016/12/20
[Qemu-devel] [PATCH for-2.9 V4 1/2] Add a new qmp command to start/stop replication,
Zhang Chen <=
Re: [Qemu-devel] [PATCH for-2.9 V4 0/2] Add new qmp commands to suppurt Xen COLO, Stefano Stabellini, 2016/12/19