From: Chun Feng Wu <wucf@xxxxxxxxxxxxx>
* ThrottleGroup is updated through "qemuMonitorJSONUpdateThrottleGroup"
* ThrottleGroup is retrieved through "qemuMonitorJSONGetThrottleGroup"
* ThrottleGroup is deleted by reusing "qemuMonitorDelObject"
* ThrottleGroup is added by reusing "qemuMonitorAddObject"
* "qemuMonitorMakeThrottleGroupLimits" will be used by building qemu cmd as well
Signed-off-by: Chun Feng Wu <wucf@xxxxxxxxxxxxx>
---
src/qemu/qemu_monitor.c | 34 ++++++++
src/qemu/qemu_monitor.h | 14 ++++
src/qemu/qemu_monitor_json.c | 151 +++++++++++++++++++++++++++++++++++
src/qemu/qemu_monitor_json.h | 14 ++++
4 files changed, 213 insertions(+)
diff --git a/src/qemu/qemu_monitor.c b/src/qemu/qemu_monitor.c
index 34e2ccab97..2cd122ea9e 100644
--- a/src/qemu/qemu_monitor.c
+++ b/src/qemu/qemu_monitor.c
@@ -2996,6 +2996,40 @@ qemuMonitorGetBlockIoThrottle(qemuMonitor *mon,
}
+int
+qemuMonitorThrottleGroupLimits(virJSONValue *limits,
+ const virDomainThrottleGroupDef *group)
+{
+ return qemuMonitorMakeThrottleGroupLimits(limits, group);
+}
+
+
+int
+qemuMonitorUpdateThrottleGroup(qemuMonitor *mon,
+ const char *qomid,
+ virDomainBlockIoTuneInfo *info)
+{
+ VIR_DEBUG("qomid=%s, info=%p", NULLSTR(qomid), info);
+
+ QEMU_CHECK_MONITOR(mon);
+
+ return qemuMonitorJSONUpdateThrottleGroup(mon, qomid, info);
+}
+
+
+int
+qemuMonitorGetThrottleGroup(qemuMonitor *mon,
+ const char *groupname,
+ virDomainBlockIoTuneInfo *reply)
+{
+ VIR_DEBUG("throttle-group=%s, reply=%p", NULLSTR(groupname), reply);
+
+ QEMU_CHECK_MONITOR(mon);
+
+ return qemuMonitorJSONGetThrottleGroup(mon, groupname, reply);
+}
+
+
int
qemuMonitorVMStatusToPausedReason(const char *status)
{
diff --git a/src/qemu/qemu_monitor.h b/src/qemu/qemu_monitor.h
index 6e81945201..9fbcd3f687 100644
--- a/src/qemu/qemu_monitor.h
+++ b/src/qemu/qemu_monitor.h
@@ -1061,6 +1061,20 @@ int qemuMonitorGetBlockIoThrottle(qemuMonitor *mon,
const char *qdevid,
virDomainBlockIoTuneInfo *reply);
+int
+qemuMonitorThrottleGroupLimits(virJSONValue *limits,
+ const virDomainThrottleGroupDef *group);
+
+int
+qemuMonitorUpdateThrottleGroup(qemuMonitor *mon,
+ const char *qomid,
+ virDomainBlockIoTuneInfo *info);
+
+int
+qemuMonitorGetThrottleGroup(qemuMonitor *mon,
+ const char *groupname,
+ virDomainBlockIoTuneInfo *reply);
+
int qemuMonitorSystemWakeup(qemuMonitor *mon);
int qemuMonitorGetVersion(qemuMonitor *mon,
diff --git a/src/qemu/qemu_monitor_json.c b/src/qemu/qemu_monitor_json.c
index eb84a3d938..9abcb40df2 100644
--- a/src/qemu/qemu_monitor_json.c
+++ b/src/qemu/qemu_monitor_json.c
@@ -4633,6 +4633,157 @@ int qemuMonitorJSONGetBlockIoThrottle(qemuMonitor *mon,
return qemuMonitorJSONBlockIoThrottleInfo(devices, qdevid, reply);
}
+
+int
+qemuMonitorMakeThrottleGroupLimits(virJSONValue *limits,
+ const virDomainThrottleGroupDef *group)
+{
+ if (virJSONValueObjectAppendNumberLong(limits, "bps-total", group->total_bytes_sec)<0)
+ return -1;
+ if (virJSONValueObjectAppendNumberLong(limits, "bps-read", group->read_bytes_sec)<0)
+ return -1;
+ if (virJSONValueObjectAppendNumberLong(limits, "bps-write", group->write_bytes_sec)<0)
+ return -1;
+ if (virJSONValueObjectAppendNumberLong(limits, "iops-total", group->total_iops_sec)<0)
+ return -1;
+ if (virJSONValueObjectAppendNumberLong(limits, "iops-read", group->read_iops_sec)<0)
+ return -1;
+ if (virJSONValueObjectAppendNumberLong(limits, "iops-write", group->write_iops_sec)<0)
+ return -1;
+ if (virJSONValueObjectAppendNumberLong(limits, "bps-total-max", group->total_bytes_sec_max)<0)
+ return -1;
+ if (virJSONValueObjectAppendNumberLong(limits, "bps-read-max", group->read_bytes_sec_max)<0)
+ return -1;
+ if (virJSONValueObjectAppendNumberLong(limits, "bps-write-max", group->write_bytes_sec_max)<0)
+ return -1;
+ if (virJSONValueObjectAppendNumberLong(limits, "iops-total-max", group->total_iops_sec_max)<0)
+ return -1;
+ if (virJSONValueObjectAppendNumberLong(limits, "iops-read-max", group->read_iops_sec_max)<0)
+ return -1;
+ if (virJSONValueObjectAppendNumberLong(limits, "iops-write-max", group->write_iops_sec_max)<0)
+ return -1;
+ if (virJSONValueObjectAppendNumberLong(limits, "iops-size", group->size_iops_sec)<0)
+ return -1;
+ /* avoid error from QEMU: "the burst length cannot be 0" for throttlelimits
+ * when setting max-length
+ */
+ if (virJSONValueObjectAdd(&limits, "P:bps-total-max-length", group->total_bytes_sec_max_length, NULL)<0)
+ return -1;
+ if (virJSONValueObjectAdd(&limits, "P:bps-read-max-length", group->read_bytes_sec_max_length, NULL)<0)
+ return -1;
+ if (virJSONValueObjectAdd(&limits, "P:bps-write-max-length", group->write_bytes_sec_max_length, NULL)<0)
+ return -1;
+ if (virJSONValueObjectAdd(&limits, "P:iops-total-max-length", group->total_iops_sec_max_length, NULL)<0)
+ return -1;
+ if (virJSONValueObjectAdd(&limits, "P:iops-read-max-length", group->read_iops_sec_max_length, NULL)<0)
+ return -1;
+ if (virJSONValueObjectAdd(&limits, "P:iops-write-max-length", group->write_iops_sec_max_length, NULL)<0)
+ return -1;
+
+ return 0;
+}
+
+
+int
+qemuMonitorJSONUpdateThrottleGroup(qemuMonitor *mon,
+ const char *qomid,
+ virDomainBlockIoTuneInfo *info)
+{
+ g_autoptr(virJSONValue) cmd = NULL;
+ g_autoptr(virJSONValue) result = NULL;
+ g_autoptr(virJSONValue) limits = virJSONValueNewObject();
+
+ if (qemuMonitorMakeThrottleGroupLimits(limits, info)<0)
+ return -1;
+
+ if (!(cmd = qemuMonitorJSONMakeCommand("qom-set",
+ "s:property", "limits",
+ "s:path", qomid,
+ "a:value", &limits,
+ NULL)))
+ return -1;
+
+ if (qemuMonitorJSONCommand(mon, cmd, &result) < 0)
+ return -1;
+
+ if (qemuMonitorJSONCheckError(cmd, result) < 0)
+ return -1;
+
+ return 0;
+}
+
+#define GET_THROTTLE_GROUP_VALUE(FIELD, STORE) \
+ if (virJSONValueObjectHasKey(ret, FIELD)) { \
+ if (virJSONValueObjectGetNumberUlong(ret, FIELD, &reply->STORE) < 0) { \
+ virReportError(VIR_ERR_OPERATION_UNSUPPORTED, \
+ _("throttle group field '%1$s' missing in qemu's output"), \
+ #STORE); \
+ return -1; \
+ } \
+ }
+
+
+int
+qemuMonitorJSONGetThrottleGroup(qemuMonitor *mon,
+ const char *gname,
+ virDomainBlockIoTuneInfo *reply)
+{
+ char fullpath[100];
+ g_autoptr(virJSONValue) cmd = NULL;
+ g_autoptr(virJSONValue) result = NULL;
+ g_autofree char *groupCopy = NULL;
+ virJSONValue *ret;
+
+
+ g_snprintf(fullpath, sizeof(fullpath), "%s%s", "/objects/", gname);
+ if (!(cmd = qemuMonitorJSONMakeCommand("qom-get",
+ "s:path", fullpath,
+ "s:property", "limits",
+ NULL)))
+ return -1;
+
+ if (qemuMonitorJSONCommand(mon, cmd, &result) < 0)
+ return -1;
+
+ if (qemuMonitorJSONCheckError(cmd, result) < 0)
+ return -1;
+
+ if (!(ret = qemuMonitorJSONGetReply(cmd, result, VIR_JSON_TYPE_OBJECT))) {
+ virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
+ _("throttle group entry was not in expected format"));
+ return -1;
+ }
+
+ GET_THROTTLE_GROUP_VALUE("bps-total", total_bytes_sec);
+ GET_THROTTLE_GROUP_VALUE("bps-read", read_bytes_sec);
+ GET_THROTTLE_GROUP_VALUE("bps-write", write_bytes_sec);
+ GET_THROTTLE_GROUP_VALUE("iops-total", total_iops_sec);
+ GET_THROTTLE_GROUP_VALUE("iops-read", read_iops_sec);
+ GET_THROTTLE_GROUP_VALUE("iops-write", write_iops_sec);
+
+ GET_THROTTLE_GROUP_VALUE("bps-total-max", total_bytes_sec_max);
+ GET_THROTTLE_GROUP_VALUE("bps-read-max", read_bytes_sec_max);
+ GET_THROTTLE_GROUP_VALUE("bps-write-max", write_bytes_sec_max);
+ GET_THROTTLE_GROUP_VALUE("iops-total-max", total_iops_sec_max);
+ GET_THROTTLE_GROUP_VALUE("iops-read-max", read_iops_sec_max);
+ GET_THROTTLE_GROUP_VALUE("iops-write-max", write_iops_sec_max);
+ GET_THROTTLE_GROUP_VALUE("iops-size", size_iops_sec);
+
+ GET_THROTTLE_GROUP_VALUE("bps-total-max-length", total_bytes_sec_max_length);
+ GET_THROTTLE_GROUP_VALUE("bps-read-max-length", read_bytes_sec_max_length);
+ GET_THROTTLE_GROUP_VALUE("bps-write-max-length", write_bytes_sec_max_length);
+ GET_THROTTLE_GROUP_VALUE("iops-total-max-length", total_iops_sec_max_length);
+ GET_THROTTLE_GROUP_VALUE("iops-read-max-length", read_iops_sec_max_length);
+ GET_THROTTLE_GROUP_VALUE("iops-write-max-length", write_iops_sec_max_length);
+
+ groupCopy = g_strdup(gname);
+ reply->group_name = g_steal_pointer(&groupCopy);
+
+ return 0;
+}
+#undef GET_THROTTLE_GROUP_VALUE
+
+
int qemuMonitorJSONSystemWakeup(qemuMonitor *mon)
{
g_autoptr(virJSONValue) cmd = NULL;
diff --git a/src/qemu/qemu_monitor_json.h b/src/qemu/qemu_monitor_json.h
index 9684660d86..fa3138bbf9 100644
--- a/src/qemu/qemu_monitor_json.h
+++ b/src/qemu/qemu_monitor_json.h
@@ -404,6 +404,20 @@ qemuMonitorJSONSetBlockIoThrottle(qemuMonitor *mon,
const char *qomid,
virDomainBlockIoTuneInfo *info);
+int
+qemuMonitorMakeThrottleGroupLimits(virJSONValue *limits,
+ const virDomainThrottleGroupDef *group);
+
+int
+qemuMonitorJSONUpdateThrottleGroup(qemuMonitor *mon,
+ const char *qomid,
+ virDomainBlockIoTuneInfo *info);
+
+int
+qemuMonitorJSONGetThrottleGroup(qemuMonitor *mon,
+ const char *gname,
+ virDomainBlockIoTuneInfo *reply);
+
int
qemuMonitorJSONGetBlockIoThrottle(qemuMonitor *mon,
const char *qdevid,
--
2.34.1
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