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[Qemu-devel] [PULL V2 12/26] qapi: Add new command to query colo status
From: |
Jason Wang |
Subject: |
[Qemu-devel] [PULL V2 12/26] qapi: Add new command to query colo status |
Date: |
Fri, 19 Oct 2018 11:22:11 +0800 |
From: Zhang Chen <address@hidden>
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>
Signed-off-by: Zhang Chen <address@hidden>
Signed-off-by: Jason Wang <address@hidden>
---
migration/colo.c | 21 +++++++++++++++++++++
qapi/migration.json | 32 ++++++++++++++++++++++++++++++++
2 files changed, 53 insertions(+)
diff --git a/migration/colo.c b/migration/colo.c
index 2cdd366..94c4e09 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 +238,26 @@ void qmp_xen_colo_do_checkpoint(Error **errp)
#endif
}
+COLOStatus *qmp_query_colo_status(Error **errp)
+{
+ COLOStatus *s = g_new0(COLOStatus, 1);
+
+ 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 0776e0f..0928f4b 100644
--- a/qapi/migration.json
+++ b/qapi/migration.json
@@ -1308,6 +1308,38 @@
{ 'command': 'xen-colo-do-checkpoint' }
##
+# @COLOStatus:
+#
+# The result format for 'query-colo-status'.
+#
+# @mode: COLO running mode. If COLO is running, this field will return
+# 'primary' or 'secondary'.
+#
+# @reason: describes the reason for the COLO exit.
+#
+# Since: 3.0
+##
+{ 'struct': 'COLOStatus',
+ 'data': { 'mode': 'COLOMode', '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", "active": true, "reason": "request" } }
+#
+# Since: 3.0
+##
+{ 'command': 'query-colo-status',
+ 'returns': 'COLOStatus' }
+
+##
# @migrate-recover:
#
# Provide a recovery migration stream URI.
--
2.5.0
- [Qemu-devel] [PULL V2 02/26] colo-compare: implement the process of checkpoint, (continued)
- [Qemu-devel] [PULL V2 02/26] colo-compare: implement the process of checkpoint, Jason Wang, 2018/10/18
- [Qemu-devel] [PULL V2 04/26] COLO: integrate colo compare with colo frame, Jason Wang, 2018/10/18
- [Qemu-devel] [PULL V2 03/26] colo-compare: use notifier to notify packets comparing result, Jason Wang, 2018/10/18
- [Qemu-devel] [PULL V2 05/26] COLO: Add block replication into colo process, Jason Wang, 2018/10/18
- [Qemu-devel] [PULL V2 07/26] COLO: Load dirty pages into SVM's RAM cache firstly, Jason Wang, 2018/10/18
- [Qemu-devel] [PULL V2 06/26] COLO: Remove colo_state migration struct, Jason Wang, 2018/10/18
- [Qemu-devel] [PULL V2 08/26] ram/COLO: Record the dirty pages that SVM received, Jason Wang, 2018/10/18
- [Qemu-devel] [PULL V2 09/26] COLO: Flush memory data from ram cache, Jason Wang, 2018/10/18
- [Qemu-devel] [PULL V2 10/26] qmp event: Add COLO_EXIT event to notify users while exited COLO, Jason Wang, 2018/10/18
- [Qemu-devel] [PULL V2 11/26] qapi/migration.json: Rename COLO unknown mode to none mode., Jason Wang, 2018/10/18
- [Qemu-devel] [PULL V2 12/26] qapi: Add new command to query colo status,
Jason Wang <=
- [Qemu-devel] [PULL V2 14/26] COLO: flush host dirty ram from cache, Jason Wang, 2018/10/18
- [Qemu-devel] [PULL V2 13/26] savevm: split the process of different stages for loadvm/savevm, Jason Wang, 2018/10/18
- [Qemu-devel] [PULL V2 15/26] filter: Add handle_event method for NetFilterClass, Jason Wang, 2018/10/18
- [Qemu-devel] [PULL V2 17/26] COLO: notify net filters about checkpoint/failover event, Jason Wang, 2018/10/18
- [Qemu-devel] [PULL V2 19/26] docs: Add COLO status diagram to COLO-FT.txt, Jason Wang, 2018/10/18
- [Qemu-devel] [PULL V2 20/26] clean up callback when del virtqueue, Jason Wang, 2018/10/18
- [Qemu-devel] [PULL V2 18/26] COLO: quick failover process by kick COLO thread, Jason Wang, 2018/10/18
- [Qemu-devel] [PULL V2 22/26] rtl8139: fix possible out of bound access, Jason Wang, 2018/10/18
- [Qemu-devel] [PULL V2 23/26] pcnet: fix possible buffer overflow, Jason Wang, 2018/10/18