From 55ecdae0fbaa6b006f31f476fd52d1c57757a571 Mon Sep 17 00:00:00 2001
From: Alexander Burluka <aburluka@virtuozzo.com>
Date: Tue, 16 Feb 2016 16:43:34 +0300
Subject: [PATCH] Add global quota parameter necessary definitions

This parameter controls the maximum bandwidth to be used
within a period for whole domain.

Signed-off-by: Alexander Burluka <aburluka@virtuozzo.com>
---
 docs/schemas/domaincommon.rng    |  5 +++++
 include/libvirt/libvirt-domain.h | 16 ++++++++++++++++
 src/conf/domain_conf.c           | 19 +++++++++++++++++++
 src/conf/domain_conf.h           |  1 +
 4 files changed, 41 insertions(+)

diff --git a/docs/schemas/domaincommon.rng b/docs/schemas/domaincommon.rng
index e21ce85df0..6ca937c07a 100644
--- a/docs/schemas/domaincommon.rng
+++ b/docs/schemas/domaincommon.rng
@@ -674,6 +674,11 @@
             <ref name="cpuperiod"/>
           </element>
         </optional>
+        <optional>
+          <element name="global_quota">
+            <ref name="cpuquota"/>
+          </element>
+        </optional>
         <optional>
           <element name="period">
             <ref name="cpuperiod"/>
diff --git a/include/libvirt/libvirt-domain.h b/include/libvirt/libvirt-domain.h
index 3ec982ceea..79c25df9e5 100644
--- a/include/libvirt/libvirt-domain.h
+++ b/include/libvirt/libvirt-domain.h
@@ -319,6 +319,14 @@ typedef enum {
  */
 # define VIR_DOMAIN_SCHEDULER_GLOBAL_PERIOD "global_period"
 
+/**
+ * VIR_DOMAIN_SCHEDULER_GLOBAL_QUOTA:
+ *
+ * Macro represents the maximum bandwidth to be used within a period for
+ * whole domain, when using the posix scheduler, as an llong.
+ */
+# define VIR_DOMAIN_SCHEDULER_GLOBAL_QUOTA "global_quota"
+
 /**
  * VIR_DOMAIN_SCHEDULER_VCPU_PERIOD:
  *
@@ -3354,6 +3362,14 @@ typedef void (*virConnectDomainEventMigrationIterationCallback)(virConnectPtr co
  */
 # define VIR_DOMAIN_TUNABLE_CPU_GLOBAL_PERIOD "cputune.global_period"
 
+/**
+ * VIR_DOMAIN_TUNABLE_CPU_GLOBAL_QUOTA:
+ *
+ * Macro represents the maximum bandwidth to be used within a period for
+ * whole domain, when using the posix scheduler, as VIR_TYPED_PARAM_LLONG.
+ */
+# define VIR_DOMAIN_TUNABLE_CPU_GLOBAL_QUOTA "cputune.global_quota"
+
 /**
  * VIR_DOMAIN_TUNABLE_CPU_VCPU_PERIOD:
  *
diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index 6872b50444..39451edf41 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -15155,6 +15155,22 @@ virDomainDefParseXML(xmlDocPtr xml,
         goto error;
     }
 
+    if (virXPathLongLong("string(./cputune/global_quota[1])", ctxt,
+                         &def->cputune.global_quota) < -1) {
+        virReportError(VIR_ERR_XML_ERROR, "%s",
+                       _("can't parse cputune global quota value"));
+        goto error;
+    }
+
+    if (def->cputune.global_quota > 0 &&
+        (def->cputune.global_quota < 1000 ||
+         def->cputune.global_quota > 18446744073709551LL)) {
+        virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
+                       _("Value of cputune global quota must be in range "
+                         "[1000, 18446744073709551]"));
+        goto error;
+    }
+
     if (virXPathULongLong("string(./cputune/emulator_period[1])", ctxt,
                           &def->cputune.emulator_period) < -1) {
         virReportError(VIR_ERR_XML_ERROR, "%s",
@@ -21673,6 +21689,9 @@ virDomainCputuneDefFormat(virBufferPtr buf,
     if (def->cputune.global_period)
         virBufferAsprintf(&childrenBuf, "<global_period>%llu</global_period>\n",
                           def->cputune.global_period);
+    if (def->cputune.global_quota)
+        virBufferAsprintf(&childrenBuf, "<global_quota>%lld</global_quota>\n",
+                          def->cputune.global_quota);
 
     if (def->cputune.emulator_period)
         virBufferAsprintf(&childrenBuf, "<emulator_period>%llu"
diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h
index 9af1a7c07f..06305f0383 100644
--- a/src/conf/domain_conf.h
+++ b/src/conf/domain_conf.h
@@ -2113,6 +2113,7 @@ struct _virDomainCputune {
     unsigned long long period;
     long long quota;
     unsigned long long global_period;
+    long long global_quota;
     unsigned long long emulator_period;
     long long emulator_quota;
     virBitmapPtr emulatorpin;