diff --git a/nova/tests/test_libvirt.py b/nova/tests/test_libvirt.py
index 77c27f4c..b482ea8c 100644
--- a/nova/tests/test_libvirt.py
+++ b/nova/tests/test_libvirt.py
@@ -5135,6 +5135,105 @@ class LibvirtDriverTestCase(test.TestCase):
             self.libvirtconnection.get_instance_disk_info,
             instance_name)
 
+    def test_get_cpuset_ids(self):
+        # correct syntax
+        self.flags(vcpu_pin_set="1")
+        cpuset_ids = self.libvirtconnection._get_cpuset_ids()
+        self.assertEqual([1], cpuset_ids)
+
+        self.flags(vcpu_pin_set="1,2")
+        cpuset_ids = self.libvirtconnection._get_cpuset_ids()
+        self.assertEqual([1, 2], cpuset_ids)
+
+        self.flags(vcpu_pin_set=", ,   1 ,  ,,  2,    ,")
+        cpuset_ids = self.libvirtconnection._get_cpuset_ids()
+        self.assertEqual([1, 2], cpuset_ids)
+
+        self.flags(vcpu_pin_set="1-1")
+        cpuset_ids = self.libvirtconnection._get_cpuset_ids()
+        self.assertEqual([1], cpuset_ids)
+
+        self.flags(vcpu_pin_set=" 1 - 1, 1 - 2 , 1 -3")
+        cpuset_ids = self.libvirtconnection._get_cpuset_ids()
+        self.assertEqual([1, 2, 3], cpuset_ids)
+
+        self.flags(vcpu_pin_set="1,^2")
+        cpuset_ids = self.libvirtconnection._get_cpuset_ids()
+        self.assertEqual([1], cpuset_ids)
+
+        self.flags(vcpu_pin_set="1-2, ^1")
+        cpuset_ids = self.libvirtconnection._get_cpuset_ids()
+        self.assertEqual([2], cpuset_ids)
+
+        self.flags(vcpu_pin_set="1-3,5,^2")
+        cpuset_ids = self.libvirtconnection._get_cpuset_ids()
+        self.assertEqual([1, 3, 5], cpuset_ids)
+
+        self.flags(vcpu_pin_set=" 1 -    3        ,   ^2,        5")
+        cpuset_ids = self.libvirtconnection._get_cpuset_ids()
+        self.assertEqual([1, 3, 5], cpuset_ids)
+
+        # invalid syntax
+        self.flags(vcpu_pin_set=" -1-3,5,^2")
+        self.assertRaises(exception.Invalid,
+                          self.libvirtconnection._get_cpuset_ids)
+
+        self.flags(vcpu_pin_set="1-3-,5,^2")
+        self.assertRaises(exception.Invalid,
+                          self.libvirtconnection._get_cpuset_ids)
+
+        self.flags(vcpu_pin_set="-3,5,^2")
+        self.assertRaises(exception.Invalid,
+                          self.libvirtconnection._get_cpuset_ids)
+
+        self.flags(vcpu_pin_set="1-,5,^2")
+        self.assertRaises(exception.Invalid,
+                          self.libvirtconnection._get_cpuset_ids)
+
+        self.flags(vcpu_pin_set="1-3,5,^2^")
+        self.assertRaises(exception.Invalid,
+                          self.libvirtconnection._get_cpuset_ids)
+
+        self.flags(vcpu_pin_set="1-3,5,^2-")
+        self.assertRaises(exception.Invalid,
+                          self.libvirtconnection._get_cpuset_ids)
+
+        self.flags(vcpu_pin_set="--13,^^5,^2")
+        self.assertRaises(exception.Invalid,
+                          self.libvirtconnection._get_cpuset_ids)
+
+        self.flags(vcpu_pin_set="a-3,5,^2")
+        self.assertRaises(exception.Invalid,
+                          self.libvirtconnection._get_cpuset_ids)
+
+        self.flags(vcpu_pin_set="1-a,5,^2")
+        self.assertRaises(exception.Invalid,
+                          self.libvirtconnection._get_cpuset_ids)
+
+        self.flags(vcpu_pin_set="1-3,b,^2")
+        self.assertRaises(exception.Invalid,
+                          self.libvirtconnection._get_cpuset_ids)
+
+        self.flags(vcpu_pin_set="1-3,5,^c")
+        self.assertRaises(exception.Invalid,
+                          self.libvirtconnection._get_cpuset_ids)
+
+        self.flags(vcpu_pin_set="3 - 1, 5 , ^ 2 ")
+        self.assertRaises(exception.Invalid,
+                          self.libvirtconnection._get_cpuset_ids)
+
+        self.flags(vcpu_pin_set=" 1,1, ^1")
+        self.assertRaises(exception.Invalid,
+                          self.libvirtconnection._get_cpuset_ids)
+
+        self.flags(vcpu_pin_set=" 1,^1,^1,2, ^2")
+        self.assertRaises(exception.Invalid,
+                          self.libvirtconnection._get_cpuset_ids)
+
+        self.flags(vcpu_pin_set="^2")
+        self.assertRaises(exception.Invalid,
+                          self.libvirtconnection._get_cpuset_ids)
+
 
 class LibvirtVolumeUsageTestCase(test.TestCase):
     """Test for nova.virt.libvirt.libvirt_driver.LibvirtDriver
diff --git a/nova/tests/test_libvirt_config.py b/nova/tests/test_libvirt_config.py
index f98e6dd5..8eed7136 100644
--- a/nova/tests/test_libvirt_config.py
+++ b/nova/tests/test_libvirt_config.py
@@ -699,6 +699,7 @@ class LibvirtConfigGuestTest(LibvirtConfigBaseTest):
         obj.virt_type = "lxc"
         obj.memory = 1024 * 1024 * 100
         obj.vcpus = 2
+        obj.cpuset = "0-3,^2,4-5"
         obj.name = "demo"
         obj.uuid = "b38a3f43-4be2-4046-897f-b67c2f5e0147"
         obj.os_type = "exe"
@@ -716,7 +717,7 @@ class LibvirtConfigGuestTest(LibvirtConfigBaseTest):
               <uuid>b38a3f43-4be2-4046-897f-b67c2f5e0147</uuid>
               <name>demo</name>
               <memory>104857600</memory>
-              <vcpu>2</vcpu>
+              <vcpu cpuset="0-3,^2,4-5">2</vcpu>
               <os>
                 <type>exe</type>
                 <init>/sbin/init</init>
@@ -734,6 +735,7 @@ class LibvirtConfigGuestTest(LibvirtConfigBaseTest):
         obj.virt_type = "xen"
         obj.memory = 1024 * 1024 * 100
         obj.vcpus = 2
+        obj.cpuset = "0-3,^2,4-5"
         obj.name = "demo"
         obj.uuid = "b38a3f43-4be2-4046-897f-b67c2f5e0147"
         obj.os_type = "linux"
@@ -756,7 +758,7 @@ class LibvirtConfigGuestTest(LibvirtConfigBaseTest):
               <uuid>b38a3f43-4be2-4046-897f-b67c2f5e0147</uuid>
               <name>demo</name>
               <memory>104857600</memory>
-              <vcpu>2</vcpu>
+              <vcpu cpuset="0-3,^2,4-5">2</vcpu>
               <os>
                 <type>linux</type>
                 <kernel>/tmp/vmlinuz</kernel>
@@ -777,6 +779,7 @@ class LibvirtConfigGuestTest(LibvirtConfigBaseTest):
         obj.virt_type = "xen"
         obj.memory = 1024 * 1024 * 100
         obj.vcpus = 2
+        obj.cpuset = "0-3,^2,4-5"
         obj.name = "demo"
         obj.uuid = "b38a3f43-4be2-4046-897f-b67c2f5e0147"
         obj.os_type = "hvm"
@@ -800,7 +803,7 @@ class LibvirtConfigGuestTest(LibvirtConfigBaseTest):
               <uuid>b38a3f43-4be2-4046-897f-b67c2f5e0147</uuid>
               <name>demo</name>
               <memory>104857600</memory>
-              <vcpu>2</vcpu>
+              <vcpu cpuset="0-3,^2,4-5">2</vcpu>
               <os>
                 <type>hvm</type>
                 <loader>/usr/lib/xen/boot/hvmloader</loader>
@@ -824,6 +827,7 @@ class LibvirtConfigGuestTest(LibvirtConfigBaseTest):
         obj.virt_type = "kvm"
         obj.memory = 1024 * 1024 * 100
         obj.vcpus = 2
+        obj.cpuset = "0-3,^2,4-5"
         obj.cpu_shares = 100
         obj.cpu_quota = 50000
         obj.cpu_period = 25000
@@ -853,7 +857,7 @@ class LibvirtConfigGuestTest(LibvirtConfigBaseTest):
               <uuid>b38a3f43-4be2-4046-897f-b67c2f5e0147</uuid>
               <name>demo</name>
               <memory>104857600</memory>
-              <vcpu>2</vcpu>
+              <vcpu cpuset="0-3,^2,4-5">2</vcpu>
               <sysinfo type='smbios'>
                  <bios>
                    <entry name="vendor">Acme</entry>