diff --git a/nova_powervm/tests/virt/powervm/test_host.py b/nova_powervm/tests/virt/powervm/test_host.py
index 23eaba03..618eb86e 100644
--- a/nova_powervm/tests/virt/powervm/test_host.py
+++ b/nova_powervm/tests/virt/powervm/test_host.py
@@ -282,7 +282,7 @@ class TestHostCPUStats(test.TestCase):
         prev_lpar_sample = mock_prev_phyp.sample.lpars[0].processor
         prev_lpar_sample.util_cap_proc_cycles = 0
         prev_lpar_sample.util_uncap_proc_cycles = 0
-        prev_lpar_sample.donated_proc_cycles = 0
+        prev_lpar_sample.idle_proc_cycles = 0
         delta3 = host_stats._delta_proc_cycles(mock_phyp.sample.lpars,
                                                mock_prev_phyp.sample.lpars)
         self.assertEqual(0, delta3)
@@ -295,11 +295,11 @@ class TestHostCPUStats(test.TestCase):
         mock_phyp, mock_prev_phyp = self._get_mock_phyps()
         mock_phyp.sample.lpars[0].processor.util_cap_proc_cycles = 250000
         mock_phyp.sample.lpars[0].processor.util_uncap_proc_cycles = 250000
-        mock_phyp.sample.lpars[0].processor.donated_proc_cycles = 500
+        mock_phyp.sample.lpars[0].processor.idle_proc_cycles = 500
         mock_prev_phyp.sample.lpars[0].processor.util_cap_proc_cycles = 0
         num = 455000
         mock_prev_phyp.sample.lpars[0].processor.util_uncap_proc_cycles = num
-        mock_prev_phyp.sample.lpars[0].processor.donated_proc_cycles = 1000
+        mock_prev_phyp.sample.lpars[0].processor.idle_proc_cycles = 1000
 
         # Test that a previous sample allows us to gather just the delta.
         new_elem = self._get_sample(4, mock_phyp.sample)
@@ -412,13 +412,13 @@ class TestHostCPUStats(test.TestCase):
         mock_lpar_4A.processor = mock.MagicMock(
             util_cap_proc_cycles=5005045000,
             util_uncap_proc_cycles=5005045000,
-            donated_proc_cycles=10000)
+            idle_proc_cycles=10000)
         mock_lpar_4A_prev = mock.Mock()
         mock_lpar_4A_prev.configure_mock(id=4, name='A')
         mock_lpar_4A_prev.processor = mock.MagicMock(
             util_cap_proc_cycles=40000,
             util_uncap_proc_cycles=40000,
-            donated_proc_cycles=0)
+            idle_proc_cycles=0)
         mock_phyp = mock.MagicMock(sample=mock.MagicMock(lpars=[mock_lpar_4A]))
         mock_prev_phyp = mock.MagicMock(
             sample=mock.MagicMock(lpars=[mock_lpar_4A_prev]))
diff --git a/nova_powervm/virt/powervm/host.py b/nova_powervm/virt/powervm/host.py
index 4875efc2..796d6c93 100644
--- a/nova_powervm/virt/powervm/host.py
+++ b/nova_powervm/virt/powervm/host.py
@@ -310,15 +310,17 @@ class HostCPUStats(pcm_util.MetricCache):
         # sample.
         if (prev_sample.processor.util_cap_proc_cycles ==
                 prev_sample.processor.util_uncap_proc_cycles ==
-                prev_sample.processor.donated_proc_cycles == 0):
+                prev_sample.processor.idle_proc_cycles == 0):
             return 0
-
+        # The VM utilization on host is its capped + uncapped - idle cycles.
+        # Donated proc cycles should not be considered as these are
+        # not guaranteed to be getting utilized by any other lpar on the host.
         prev_amount = (prev_sample.processor.util_cap_proc_cycles +
                        prev_sample.processor.util_uncap_proc_cycles -
-                       prev_sample.processor.donated_proc_cycles)
+                       prev_sample.processor.idle_proc_cycles)
         cur_amount = (cur_sample.processor.util_cap_proc_cycles +
                       cur_sample.processor.util_uncap_proc_cycles -
-                      cur_sample.processor.donated_proc_cycles)
+                      cur_sample.processor.idle_proc_cycles)
         return cur_amount - prev_amount
 
     @staticmethod