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[Qemu-devel] [PATCH V7 11/17] qapi: Add new command to query colo status
From: |
Zhang Chen |
Subject: |
[Qemu-devel] [PATCH V7 11/17] qapi: Add new command to query colo status |
Date: |
Mon, 14 May 2018 11:23:42 +0800 |
Libvirt or other high level software can use this command query colo status.
You can test this command like that:
{'execute':'query-colo-status'}
Signed-off-by: Zhang Chen <address@hidden>
---
migration/colo.c | 34 ++++++++++++++++++++++++++++++++++
qapi/migration.json | 33 +++++++++++++++++++++++++++++++++
2 files changed, 67 insertions(+)
diff --git a/migration/colo.c b/migration/colo.c
index 8ca6381..314344c 100644
--- a/migration/colo.c
+++ b/migration/colo.c
@@ -29,6 +29,7 @@
#include "net/colo.h"
#include "block/block.h"
#include "qapi/qapi-events-migration.h"
+#include "qapi/qmp/qerror.h"
static bool vmstate_loading;
static Notifier packets_compare_notifier;
@@ -237,6 +238,39 @@ void qmp_xen_colo_do_checkpoint(Error **errp)
#endif
}
+COLOStatus *qmp_query_colo_status(Error **errp)
+{
+ int state;
+ COLOStatus *s = g_new0(COLOStatus, 1);
+
+ if (get_colo_mode() == COLO_MODE_UNKNOWN) {
+ error_setg(errp, QERR_FEATURE_DISABLED, "colo");
+ s->colo_running = false;
+ goto out;
+ } else if (get_colo_mode() == COLO_MODE_PRIMARY) {
+ state = migrate_get_current()->state;
+ } else {
+ state = migration_incoming_get_current()->state;
+ }
+ s->colo_running = state == MIGRATION_STATUS_COLO;
+
+out:
+ s->mode = get_colo_mode();
+
+ switch (failover_get_state()) {
+ case FAILOVER_STATUS_NONE:
+ s->reason = COLO_EXIT_REASON_NONE;
+ break;
+ case FAILOVER_STATUS_REQUIRE:
+ s->reason = COLO_EXIT_REASON_REQUEST;
+ break;
+ default:
+ s->reason = COLO_EXIT_REASON_ERROR;
+ }
+
+ return s;
+}
+
static void colo_send_message(QEMUFile *f, COLOMessage msg,
Error **errp)
{
diff --git a/qapi/migration.json b/qapi/migration.json
index 55dae48..13589ba 100644
--- a/qapi/migration.json
+++ b/qapi/migration.json
@@ -1220,3 +1220,36 @@
# Since: 2.9
##
{ 'command': 'xen-colo-do-checkpoint' }
+
+##
+# @COLOStatus:
+#
+# The result format for 'query-colo-status'.
+#
+# @mode: which COLO mode the VM was in when it exited.
+#
+# @colo-running: true if COLO is running.
+#
+# @reason: describes the reason for the COLO exit.
+#
+# Since: 2.13
+##
+{ 'struct': 'COLOStatus',
+ 'data': { 'mode': 'COLOMode', 'colo-running': 'bool', 'reason':
'COLOExitReason' } }
+
+##
+# @query-colo-status:
+#
+# Query COLO status while the vm is running.
+#
+# Returns: A @COLOStatus object showing the status.
+#
+# Example:
+#
+# -> { "execute": "query-colo-status" }
+# <- { "return": { "mode": "primary", "colo-running": true, "reason":
"request" } }
+#
+# Since: 2.13
+##
+{ 'command': 'query-colo-status',
+ 'returns': 'COLOStatus' }
--
2.7.4
- [Qemu-devel] [PATCH V7 00/17] COLO: integrate colo frame with block replication and COLO proxy, Zhang Chen, 2018/05/14
- [Qemu-devel] [PATCH V7 06/17] COLO: Remove colo_state migration struct, Zhang Chen, 2018/05/14
- [Qemu-devel] [PATCH V7 05/17] COLO: Add block replication into colo process, Zhang Chen, 2018/05/14
- [Qemu-devel] [PATCH V7 13/17] COLO: flush host dirty ram from cache, Zhang Chen, 2018/05/14
- [Qemu-devel] [PATCH V7 01/17] filter-rewriter: fix memory leak for connection in connection_track_table, Zhang Chen, 2018/05/14
- [Qemu-devel] [PATCH V7 09/17] COLO: Flush memory data from ram cache, Zhang Chen, 2018/05/14
- [Qemu-devel] [PATCH V7 03/17] colo-compare: use notifier to notify packets comparing result, Zhang Chen, 2018/05/14
- [Qemu-devel] [PATCH V7 07/17] COLO: Load dirty pages into SVM's RAM cache firstly, Zhang Chen, 2018/05/14
- [Qemu-devel] [PATCH V7 02/17] colo-compare: implement the process of checkpoint, Zhang Chen, 2018/05/14
- [Qemu-devel] [PATCH V7 14/17] filter: Add handle_event method for NetFilterClass, Zhang Chen, 2018/05/14
- [Qemu-devel] [PATCH V7 11/17] qapi: Add new command to query colo status,
Zhang Chen <=
- [Qemu-devel] [PATCH V7 15/17] filter-rewriter: handle checkpoint and failover event, Zhang Chen, 2018/05/14
- [Qemu-devel] [PATCH V7 08/17] ram/COLO: Record the dirty pages that SVM received, Zhang Chen, 2018/05/14
- [Qemu-devel] [PATCH V7 10/17] qmp event: Add COLO_EXIT event to notify users while exited COLO, Zhang Chen, 2018/05/14
[Qemu-devel] [PATCH V7 12/17] savevm: split the process of different stages for loadvm/savevm, Zhang Chen, 2018/05/14