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[libvirt] [PATCH v4 3/6] qemu: Add bps_max and friends qemu driver



Add support for bps_max and friends in the driver part.
In the part checking if a qemu is running, check if the running binary support bps_max,
if not print an error message, if yes add it to "info" variable

Signed-off-by: Matthias Gatto <matthias gatto outscale com>
---
 include/libvirt/libvirt.h.in |  56 +++++++++++++
 src/qemu/qemu_driver.c       | 181 +++++++++++++++++++++++++++++++++++++++++--
 src/qemu/qemu_monitor.c      |  10 ++-
 src/qemu/qemu_monitor.h      |   6 +-
 src/qemu/qemu_monitor_json.c |  13 +++-
 src/qemu/qemu_monitor_json.h |   6 +-
 tests/qemumonitorjsontest.c  |   4 +-
 7 files changed, 256 insertions(+), 20 deletions(-)

diff --git a/include/libvirt/libvirt.h.in b/include/libvirt/libvirt.h.in
index 4eab987..acaca54 100644
--- a/include/libvirt/libvirt.h.in
+++ b/include/libvirt/libvirt.h.in
@@ -5373,6 +5373,62 @@ typedef void (*virConnectDomainEventDeviceRemovedCallback)(virConnectPtr conn,
 #define VIR_DOMAIN_TUNABLE_BLKDEV_WRITE_IOPS_SEC "blkdeviotune.write_iops_sec"
 
 /**
+ * VIR_DOMAIN_TUNABLE_BLKDEV_TOTAL_BYTES_SEC_MAX:
+ *
+ * Marco represents the total throughput limit in maximum bytes per second,
+ * as VIR_TYPED_PARAM_ULLONG.
+ */
+#define VIR_DOMAIN_TUNABLE_BLKDEV_TOTAL_BYTES_SEC_MAX "blkdeviotune.total_bytes_sec_max"
+
+/**
+ * VIR_DOMAIN_TUNABLE_BLKDEV_READ_BYTES_SEC_MAX:
+ *
+ * Marco represents the read throughput limit in maximum bytes per second,
+ * as VIR_TYPED_PARAM_ULLONG.
+ */
+#define VIR_DOMAIN_TUNABLE_BLKDEV_READ_BYTES_SEC_MAX "blkdeviotune.read_bytes_sec_max"
+
+/**
+ * VIR_DOMAIN_TUNABLE_BLKDEV_WRITE_BYTES_SEC_MAX:
+ *
+ * Macro represents the write throughput limit in maximum bytes per second,
+ * as VIR_TYPED_PARAM_ULLONG.
+ */
+#define VIR_DOMAIN_TUNABLE_BLKDEV_WRITE_BYTES_SEC_MAX "blkdeviotune.write_bytes_sec_max"
+
+/**
+ * VIR_DOMAIN_TUNABLE_BLKDEV_TOTAL_IOPS_SEC_MAX:
+ *
+ * Macro represents the total maximum I/O operations per second,
+ * as VIR_TYPED_PARAM_ULLONG.
+ */
+#define VIR_DOMAIN_TUNABLE_BLKDEV_TOTAL_IOPS_SEC_MAX "blkdeviotune.total_iops_sec_max"
+
+/**
+ * VIR_DOMAIN_TUNABLE_BLKDEV_READ_IOPS_SEC_MAX:
+ *
+ * Macro represents the read maximum I/O operations per second,
+ * as VIR_TYPED_PARAM_ULLONG.
+ */
+#define VIR_DOMAIN_TUNABLE_BLKDEV_READ_IOPS_SEC_MAX "blkdeviotune.read_iops_sec_max"
+
+/**
+ * VIR_DOMAIN_TUNABLE_BLKDEV_WRITE_IOPS_SEC_MAX:
+ *
+ * Macro represents the write maximum I/O operations per second,
+ * as VIR_TYPED_PARAM_ULLONG.
+ */
+#define VIR_DOMAIN_TUNABLE_BLKDEV_WRITE_IOPS_SEC_MAX "blkdeviotune.write_iops_sec_max"
+
+/**
+ * VIR_DOMAIN_TUNABLE_BLKDEV_SIZE_IOPS_SEC:
+ *
+ * Macro represents the size maximum I/O operations per second,
+ * as VIR_TYPED_PARAM_ULLONG.
+ */
+#define VIR_DOMAIN_TUNABLE_BLKDEV_SIZE_IOPS_SEC "blkdeviotune.size_iops_sec"
+
+/**
  * virConnectDomainEventTunableCallback:
  * @conn: connection object
  * @dom: domain on which the event occurred
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index 6606154..94cfa58 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -105,6 +105,7 @@ VIR_LOG_INIT("qemu.qemu_driver");
 #define QEMU_NB_MEM_PARAM  3
 
 #define QEMU_NB_BLOCK_IO_TUNE_PARAM  6
+#define QEMU_NB_BLOCK_IO_TUNE_PARAM_MAX  13
 
 #define QEMU_NB_NUMA_PARAM 2
 
@@ -16273,6 +16274,9 @@ qemuDomainSetBlockIoTune(virDomainPtr dom,
     int conf_idx = -1;
     bool set_bytes = false;
     bool set_iops = false;
+    bool set_bytes_max = false;
+    bool set_iops_max = false;
+    bool set_size_iops = false;
     virQEMUDriverConfigPtr cfg = NULL;
     virCapsPtr caps = NULL;
     virObjectEventPtr event = NULL;
@@ -16295,6 +16299,20 @@ qemuDomainSetBlockIoTune(virDomainPtr dom,
                                VIR_TYPED_PARAM_ULLONG,
                                VIR_DOMAIN_BLOCK_IOTUNE_WRITE_IOPS_SEC,
                                VIR_TYPED_PARAM_ULLONG,
+                               VIR_DOMAIN_BLOCK_IOTUNE_TOTAL_BYTES_SEC_MAX,
+                               VIR_TYPED_PARAM_ULLONG,
+                               VIR_DOMAIN_BLOCK_IOTUNE_READ_BYTES_SEC_MAX,
+                               VIR_TYPED_PARAM_ULLONG,
+                               VIR_DOMAIN_BLOCK_IOTUNE_WRITE_BYTES_SEC_MAX,
+                               VIR_TYPED_PARAM_ULLONG,
+                               VIR_DOMAIN_BLOCK_IOTUNE_TOTAL_IOPS_SEC_MAX,
+                               VIR_TYPED_PARAM_ULLONG,
+                               VIR_DOMAIN_BLOCK_IOTUNE_READ_IOPS_SEC_MAX,
+                               VIR_TYPED_PARAM_ULLONG,
+                               VIR_DOMAIN_BLOCK_IOTUNE_WRITE_IOPS_SEC_MAX,
+                               VIR_TYPED_PARAM_ULLONG,
+                               VIR_DOMAIN_BLOCK_IOTUNE_SIZE_IOPS_SEC,
+                               VIR_TYPED_PARAM_ULLONG,
                                NULL) < 0)
         return -1;
 
@@ -16387,6 +16405,69 @@ qemuDomainSetBlockIoTune(virDomainPtr dom,
                                         VIR_DOMAIN_TUNABLE_BLKDEV_WRITE_IOPS_SEC,
                                         param->value.ul) < 0)
                 goto endjob;
+        } else if (STREQ(param->field,
+                         VIR_DOMAIN_BLOCK_IOTUNE_TOTAL_BYTES_SEC_MAX)) {
+            info.total_bytes_sec_max = param->value.ul;
+            set_bytes_max = true;
+            if (virTypedParamsAddULLong(&eventParams, &eventNparams,
+                                        &eventMaxparams,
+                                        VIR_DOMAIN_TUNABLE_BLKDEV_TOTAL_BYTES_SEC_MAX,
+                                        param->value.ul) < 0)
+                goto endjob;
+        } else if (STREQ(param->field,
+                         VIR_DOMAIN_BLOCK_IOTUNE_READ_BYTES_SEC_MAX)) {
+            info.read_bytes_sec_max = param->value.ul;
+            set_bytes_max = true;
+            if (virTypedParamsAddULLong(&eventParams, &eventNparams,
+                                        &eventMaxparams,
+                                        VIR_DOMAIN_TUNABLE_BLKDEV_READ_BYTES_SEC_MAX,
+                                        param->value.ul) < 0)
+                goto endjob;
+        } else if (STREQ(param->field,
+                         VIR_DOMAIN_BLOCK_IOTUNE_WRITE_BYTES_SEC_MAX)) {
+            info.write_bytes_sec_max = param->value.ul;
+            set_bytes_max = true;
+            if (virTypedParamsAddULLong(&eventParams, &eventNparams,
+                                        &eventMaxparams,
+                                        VIR_DOMAIN_TUNABLE_BLKDEV_WRITE_BYTES_SEC_MAX,
+                                        param->value.ul) < 0)
+                goto endjob;
+        } else if (STREQ(param->field,
+                         VIR_DOMAIN_BLOCK_IOTUNE_TOTAL_IOPS_SEC_MAX)) {
+            info.total_iops_sec_max = param->value.ul;
+            set_iops_max = true;
+            if (virTypedParamsAddULLong(&eventParams, &eventNparams,
+                                        &eventMaxparams,
+                                        VIR_DOMAIN_TUNABLE_BLKDEV_TOTAL_IOPS_SEC_MAX,
+                                        param->value.ul) < 0)
+                goto endjob;
+        } else if (STREQ(param->field,
+                         VIR_DOMAIN_BLOCK_IOTUNE_READ_IOPS_SEC_MAX)) {
+            info.read_iops_sec_max = param->value.ul;
+            set_iops_max = true;
+            if (virTypedParamsAddULLong(&eventParams, &eventNparams,
+                                        &eventMaxparams,
+                                        VIR_DOMAIN_TUNABLE_BLKDEV_READ_IOPS_SEC_MAX,
+                                        param->value.ul) < 0)
+                goto endjob;
+        } else if (STREQ(param->field,
+                         VIR_DOMAIN_BLOCK_IOTUNE_WRITE_IOPS_SEC_MAX)) {
+            info.write_iops_sec_max = param->value.ul;
+            set_iops_max = true;
+            if (virTypedParamsAddULLong(&eventParams, &eventNparams,
+                                        &eventMaxparams,
+                                        VIR_DOMAIN_TUNABLE_BLKDEV_WRITE_IOPS_SEC_MAX,
+                                        param->value.ul) < 0)
+                goto endjob;
+        } else if (STREQ(param->field,
+                         VIR_DOMAIN_BLOCK_IOTUNE_SIZE_IOPS_SEC)) {
+            info.size_iops_sec = param->value.ul;
+            set_size_iops = true;
+            if (virTypedParamsAddULLong(&eventParams, &eventNparams,
+                                        &eventMaxparams,
+                                        VIR_DOMAIN_TUNABLE_BLKDEV_SIZE_IOPS_SEC,
+                                        param->value.ul) < 0)
+                goto endjob;
         }
     }
 
@@ -16404,6 +16485,20 @@ qemuDomainSetBlockIoTune(virDomainPtr dom,
         goto endjob;
     }
 
+    if ((info.total_bytes_sec_max && info.read_bytes_sec_max) ||
+        (info.total_bytes_sec_max && info.write_bytes_sec_max)) {
+        virReportError(VIR_ERR_INVALID_ARG, "%s",
+                       _("total and read/write of bytes_sec_max cannot be set at the same time"));
+        goto endjob;
+    }
+
+    if ((info.total_iops_sec_max && info.read_iops_sec_max) ||
+        (info.total_iops_sec_max && info.write_iops_sec_max)) {
+        virReportError(VIR_ERR_INVALID_ARG, "%s",
+                       _("total and read/write of iops_sec_max cannot be set at the same time"));
+        goto endjob;
+    }
+
     if (flags & VIR_DOMAIN_AFFECT_CONFIG) {
         if ((conf_idx = virDomainDiskIndexByName(persistentDef, disk, true)) < 0) {
             virReportError(VIR_ERR_INVALID_ARG,
@@ -16421,6 +16516,13 @@ qemuDomainSetBlockIoTune(virDomainPtr dom,
             goto endjob;
         }
 
+        if (!virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_DRIVE_IOTUNE_MAX) && (set_iops_max || set_bytes_max)) {
+            virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
+                           _("a block I/O throttling parameter is not supported with this "
+                             "QEMU binary"));
+             goto endjob;
+         }
+
         if (!(device = qemuDiskPathToAlias(vm, disk, &idx)))
             goto endjob;
 
@@ -16433,13 +16535,25 @@ qemuDomainSetBlockIoTune(virDomainPtr dom,
             info.read_bytes_sec = oldinfo->read_bytes_sec;
             info.write_bytes_sec = oldinfo->write_bytes_sec;
         }
+        if (!set_bytes_max) {
+            info.total_bytes_sec_max = oldinfo->total_bytes_sec_max;
+            info.read_bytes_sec_max = oldinfo->read_bytes_sec_max;
+            info.write_bytes_sec_max = oldinfo->write_bytes_sec_max;
+        }
         if (!set_iops) {
             info.total_iops_sec = oldinfo->total_iops_sec;
             info.read_iops_sec = oldinfo->read_iops_sec;
             info.write_iops_sec = oldinfo->write_iops_sec;
         }
+        if (!set_iops_max) {
+            info.total_iops_sec_max = oldinfo->total_iops_sec_max;
+            info.read_iops_sec_max = oldinfo->read_iops_sec_max;
+            info.write_iops_sec_max = oldinfo->write_iops_sec_max;
+        }
+        if (!set_size_iops)
+            info.size_iops_sec = oldinfo->size_iops_sec;
         qemuDomainObjEnterMonitor(driver, vm);
-        ret = qemuMonitorSetBlockIoThrottle(priv->mon, device, &info);
+        ret = qemuMonitorSetBlockIoThrottle(priv->mon, device, &info, virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_DRIVE_IOTUNE_MAX));
         qemuDomainObjExitMonitor(driver, vm);
         if (ret < 0)
             goto endjob;
@@ -16483,6 +16597,7 @@ qemuDomainSetBlockIoTune(virDomainPtr dom,
     }
 
  endjob:
+
     if (!qemuDomainObjEndJob(driver, vm))
         vm = NULL;
 
@@ -16513,6 +16628,7 @@ qemuDomainGetBlockIoTune(virDomainPtr dom,
     int ret = -1;
     size_t i;
     virCapsPtr caps = NULL;
+    bool supportMaxOptions = true;
 
     virCheckFlags(VIR_DOMAIN_AFFECT_LIVE |
                   VIR_DOMAIN_AFFECT_CONFIG |
@@ -16531,8 +16647,8 @@ qemuDomainGetBlockIoTune(virDomainPtr dom,
         goto cleanup;
 
     if ((*nparams) == 0) {
-        /* Current number of parameters supported by QEMU Block I/O Throttling */
-        *nparams = QEMU_NB_BLOCK_IO_TUNE_PARAM;
+        /* Current number of parameters supported by QEMU Block I/O Throttling including the optionals parameters */
+        *nparams = QEMU_NB_BLOCK_IO_TUNE_PARAM_MAX;
         ret = 0;
         goto cleanup;
     }
@@ -16551,8 +16667,11 @@ qemuDomainGetBlockIoTune(virDomainPtr dom,
 
     if (flags & VIR_DOMAIN_AFFECT_LIVE) {
         priv = vm->privateData;
+        supportMaxOptions = virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_DRIVE_IOTUNE_MAX);
+        if (!supportMaxOptions)
+            *nparams = QEMU_NB_BLOCK_IO_TUNE_PARAM;
         qemuDomainObjEnterMonitor(driver, vm);
-        ret = qemuMonitorGetBlockIoThrottle(priv->mon, device, &reply);
+        ret = qemuMonitorGetBlockIoThrottle(priv->mon, device, &reply, supportMaxOptions);
         qemuDomainObjExitMonitor(driver, vm);
         if (ret < 0)
             goto endjob;
@@ -16569,7 +16688,7 @@ qemuDomainGetBlockIoTune(virDomainPtr dom,
         reply = persistentDef->disks[idx]->blkdeviotune;
     }
 
-    for (i = 0; i < QEMU_NB_BLOCK_IO_TUNE_PARAM && i < *nparams; i++) {
+    for (i = 0; i < QEMU_NB_BLOCK_IO_TUNE_PARAM_MAX && i < *nparams; i++) {
         virTypedParameterPtr param = &params[i];
 
         switch (i) {
@@ -16615,14 +16734,64 @@ qemuDomainGetBlockIoTune(virDomainPtr dom,
                                         reply.write_iops_sec) < 0)
                 goto endjob;
             break;
+        case 6:
+            if (virTypedParameterAssign(param,
+                                        VIR_DOMAIN_BLOCK_IOTUNE_TOTAL_BYTES_SEC_MAX,
+                                        VIR_TYPED_PARAM_ULLONG,
+                                        reply.total_bytes_sec_max) < 0)
+                goto endjob;
+            break;
+        case 7:
+            if (virTypedParameterAssign(param,
+                                        VIR_DOMAIN_BLOCK_IOTUNE_READ_BYTES_SEC_MAX,
+                                        VIR_TYPED_PARAM_ULLONG,
+                                        reply.read_bytes_sec_max) < 0)
+                goto endjob;
+            break;
+        case 8:
+            if (virTypedParameterAssign(param,
+                                        VIR_DOMAIN_BLOCK_IOTUNE_WRITE_BYTES_SEC_MAX,
+                                        VIR_TYPED_PARAM_ULLONG,
+                                        reply.write_bytes_sec_max) < 0)
+                goto endjob;
+            break;
+        case 9:
+            if (virTypedParameterAssign(param,
+                                        VIR_DOMAIN_BLOCK_IOTUNE_TOTAL_IOPS_SEC_MAX,
+                                        VIR_TYPED_PARAM_ULLONG,
+                                        reply.total_iops_sec_max) < 0)
+                goto endjob;
+            break;
+        case 10:
+            if (virTypedParameterAssign(param,
+                                        VIR_DOMAIN_BLOCK_IOTUNE_READ_IOPS_SEC_MAX,
+                                        VIR_TYPED_PARAM_ULLONG,
+                                        reply.read_iops_sec_max) < 0)
+                goto endjob;
+            break;
+        case 11:
+            if (virTypedParameterAssign(param,
+                                        VIR_DOMAIN_BLOCK_IOTUNE_WRITE_IOPS_SEC_MAX,
+                                        VIR_TYPED_PARAM_ULLONG,
+                                        reply.write_iops_sec_max) < 0)
+                goto endjob;
+            break;
+        case 12:
+            if (virTypedParameterAssign(param,
+                                        VIR_DOMAIN_BLOCK_IOTUNE_SIZE_IOPS_SEC,
+                                        VIR_TYPED_PARAM_ULLONG,
+                                        reply.size_iops_sec) < 0)
+                goto endjob;
         /* coverity[dead_error_begin] */
         default:
             break;
         }
     }
 
-    if (*nparams > QEMU_NB_BLOCK_IO_TUNE_PARAM)
+    if (!supportMaxOptions && *nparams > QEMU_NB_BLOCK_IO_TUNE_PARAM)
         *nparams = QEMU_NB_BLOCK_IO_TUNE_PARAM;
+    else if (*nparams > QEMU_NB_BLOCK_IO_TUNE_PARAM_MAX)
+        *nparams = QEMU_NB_BLOCK_IO_TUNE_PARAM_MAX;
     ret = 0;
 
  endjob:
diff --git a/src/qemu/qemu_monitor.c b/src/qemu/qemu_monitor.c
index c25f002..b57a0d8 100644
--- a/src/qemu/qemu_monitor.c
+++ b/src/qemu/qemu_monitor.c
@@ -3416,14 +3416,15 @@ qemuMonitorBlockJobInfo(qemuMonitorPtr mon,
 
 int qemuMonitorSetBlockIoThrottle(qemuMonitorPtr mon,
                                   const char *device,
-                                  virDomainBlockIoTuneInfoPtr info)
+                                  virDomainBlockIoTuneInfoPtr info,
+                                  bool supportMaxOptions)
 {
     int ret;
 
     VIR_DEBUG("mon=%p, device=%p, info=%p", mon, device, info);
 
     if (mon->json) {
-        ret = qemuMonitorJSONSetBlockIoThrottle(mon, device, info);
+        ret = qemuMonitorJSONSetBlockIoThrottle(mon, device, info, supportMaxOptions);
     } else {
         ret = qemuMonitorTextSetBlockIoThrottle(mon, device, info);
     }
@@ -3432,14 +3433,15 @@ int qemuMonitorSetBlockIoThrottle(qemuMonitorPtr mon,
 
 int qemuMonitorGetBlockIoThrottle(qemuMonitorPtr mon,
                                   const char *device,
-                                  virDomainBlockIoTuneInfoPtr reply)
+                                  virDomainBlockIoTuneInfoPtr reply,
+                                  bool supportMaxOptions)
 {
     int ret;
 
     VIR_DEBUG("mon=%p, device=%p, reply=%p", mon, device, reply);
 
     if (mon->json) {
-        ret = qemuMonitorJSONGetBlockIoThrottle(mon, device, reply);
+        ret = qemuMonitorJSONGetBlockIoThrottle(mon, device, reply, supportMaxOptions);
     } else {
         ret = qemuMonitorTextGetBlockIoThrottle(mon, device, reply);
     }
diff --git a/src/qemu/qemu_monitor.h b/src/qemu/qemu_monitor.h
index 6b91e29..ef7719d 100644
--- a/src/qemu/qemu_monitor.h
+++ b/src/qemu/qemu_monitor.h
@@ -747,11 +747,13 @@ int qemuMonitorOpenGraphics(qemuMonitorPtr mon,
 
 int qemuMonitorSetBlockIoThrottle(qemuMonitorPtr mon,
                                   const char *device,
-                                  virDomainBlockIoTuneInfoPtr info);
+                                  virDomainBlockIoTuneInfoPtr info,
+                                  bool supportMaxOptions);
 
 int qemuMonitorGetBlockIoThrottle(qemuMonitorPtr mon,
                                   const char *device,
-                                  virDomainBlockIoTuneInfoPtr reply);
+                                  virDomainBlockIoTuneInfoPtr reply,
+                                  bool supportMaxOptions);
 
 int qemuMonitorSystemWakeup(qemuMonitorPtr mon);
 
diff --git a/src/qemu/qemu_monitor_json.c b/src/qemu/qemu_monitor_json.c
index a3d7c2c..a8759dd 100644
--- a/src/qemu/qemu_monitor_json.c
+++ b/src/qemu/qemu_monitor_json.c
@@ -4042,13 +4042,15 @@ int qemuMonitorJSONOpenGraphics(qemuMonitorPtr mon,
 static int
 qemuMonitorJSONBlockIoThrottleInfo(virJSONValuePtr result,
                                    const char *device,
-                                   virDomainBlockIoTuneInfoPtr reply)
+                                   virDomainBlockIoTuneInfoPtr reply,
+                                   bool supportMaxOptions)
 {
     virJSONValuePtr io_throttle;
     int ret = -1;
     size_t i;
     bool found = false;
 
+    (void)supportMaxOptions;
     io_throttle = virJSONValueObjectGet(result, "return");
 
     if (!io_throttle || io_throttle->type != VIR_JSON_TYPE_ARRAY) {
@@ -4113,12 +4115,14 @@ qemuMonitorJSONBlockIoThrottleInfo(virJSONValuePtr result,
 
 int qemuMonitorJSONSetBlockIoThrottle(qemuMonitorPtr mon,
                                       const char *device,
-                                      virDomainBlockIoTuneInfoPtr info)
+                                      virDomainBlockIoTuneInfoPtr info,
+                                      bool supportMaxOptions)
 {
     int ret = -1;
     virJSONValuePtr cmd = NULL;
     virJSONValuePtr result = NULL;
 
+    (void)supportMaxOptions;
     cmd = qemuMonitorJSONMakeCommand("block_set_io_throttle",
                                      "s:device", device,
                                      "U:bps", info->total_bytes_sec,
@@ -4153,7 +4157,8 @@ int qemuMonitorJSONSetBlockIoThrottle(qemuMonitorPtr mon,
 
 int qemuMonitorJSONGetBlockIoThrottle(qemuMonitorPtr mon,
                                       const char *device,
-                                      virDomainBlockIoTuneInfoPtr reply)
+                                      virDomainBlockIoTuneInfoPtr reply,
+                                      bool supportMaxOptions)
 {
     int ret = -1;
     virJSONValuePtr cmd = NULL;
@@ -4180,7 +4185,7 @@ int qemuMonitorJSONGetBlockIoThrottle(qemuMonitorPtr mon,
     }
 
     if (ret == 0)
-        ret = qemuMonitorJSONBlockIoThrottleInfo(result, device, reply);
+        ret = qemuMonitorJSONBlockIoThrottleInfo(result, device, reply, supportMaxOptions);
 
     virJSONValueFree(cmd);
     virJSONValueFree(result);
diff --git a/src/qemu/qemu_monitor_json.h b/src/qemu/qemu_monitor_json.h
index d366179..aff0583 100644
--- a/src/qemu/qemu_monitor_json.h
+++ b/src/qemu/qemu_monitor_json.h
@@ -314,11 +314,13 @@ int qemuMonitorJSONOpenGraphics(qemuMonitorPtr mon,
 
 int qemuMonitorJSONSetBlockIoThrottle(qemuMonitorPtr mon,
                                       const char *device,
-                                      virDomainBlockIoTuneInfoPtr info);
+                                      virDomainBlockIoTuneInfoPtr info,
+                                      bool supportMaxOptions);
 
 int qemuMonitorJSONGetBlockIoThrottle(qemuMonitorPtr mon,
                                       const char *device,
-                                      virDomainBlockIoTuneInfoPtr reply);
+                                      virDomainBlockIoTuneInfoPtr reply,
+                                      bool supportMaxOptions);
 
 int qemuMonitorJSONSystemWakeup(qemuMonitorPtr mon);
 
diff --git a/tests/qemumonitorjsontest.c b/tests/qemumonitorjsontest.c
index ad33c10..1b202fb 100644
--- a/tests/qemumonitorjsontest.c
+++ b/tests/qemumonitorjsontest.c
@@ -1847,7 +1847,7 @@ testQemuMonitorJSONqemuMonitorJSONSetBlockIoThrottle(const void *data)
         goto cleanup;
 
     if (qemuMonitorJSONGetBlockIoThrottle(qemuMonitorTestGetMonitor(test),
-                                          "drive-virtio-disk0", &info) < 0)
+                                          "drive-virtio-disk0", &info, false) < 0)
         goto cleanup;
 
     if (memcmp(&info, &expectedInfo, sizeof(info) != 0)) {
@@ -1857,7 +1857,7 @@ testQemuMonitorJSONqemuMonitorJSONSetBlockIoThrottle(const void *data)
     }
 
     if (qemuMonitorJSONSetBlockIoThrottle(qemuMonitorTestGetMonitor(test),
-                                          "drive-virtio-disk1", &info) < 0)
+                                          "drive-virtio-disk1", &info, false) < 0)
         goto cleanup;
 
     ret = 0;
-- 
1.8.3.1


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