diff -rup virtinst-0.500.3/virtinst/Guest.py new/virtinst/Guest.py
--- virtinst-0.500.3/virtinst/Guest.py	2010-03-23 16:57:08.000000000 -0400
+++ new/virtinst/Guest.py	2010-03-24 19:44:18.000000000 -0400
@@ -720,8 +720,17 @@ class Guest(object):
         """
         Return <cpu> XML
         """
-        # Just a stub for now
-        return ""
+        xml = ""
+        is_kvm = self.type == "kvm"
+        model = self._caps.host.cpu.model
+
+        if is_kvm and model:
+            xml += "  <cpu match='exact'>\n"
+            xml += "    <model>%s</model>\n" % model
+            xml += "    <feature policy='force' name='x2apic'/>\n"
+            xml += "  </cpu>"
+
+        return xml
 
     def _get_clock_xml(self):
         """