remove addition of gate64 cpu

Nova has been fixed to not need this work around. We shouldn't keep it
in devstack.

Change-Id: Ie2b1c6b8ddce4a2fd94af06745d59455208f0633

lib/nova_plugins/functions-libvirt

@@ -121,18 +121,9 @@ EOF
         fi
     fi
 
-    # Update the libvirt cpu map with a gate64 cpu model. This enables nova
+    # Service needs to be started on redhat/fedora -- do a restart for
-    # live migration for 64bit guest OSes on heterogenous cloud "hardware".
+    # sanity after fiddling the config.
-    if [[ -f /usr/share/libvirt/cpu_map.xml ]] ; then
+    restart_service $LIBVIRT_DAEMON
-        sudo $TOP_DIR/tools/cpu_map_update.py /usr/share/libvirt/cpu_map.xml
-    fi
-
-    # libvirt detects various settings on startup, as we potentially changed
-    # the system configuration (modules, filesystems), we need to restart
-    # libvirt to detect those changes. Use a stop start as otherwise the new
-    # cpu_map is not loaded properly on some systems (Ubuntu).
-    stop_service $LIBVIRT_DAEMON
-    start_service $LIBVIRT_DAEMON
 }
 
 

tools/cpu_map_update.py

@@ -1,88 +0,0 @@
-#!/usr/bin/env python
-#
-# Licensed under the Apache License, Version 2.0 (the "License"); you may
-# not use this file except in compliance with the License. You may obtain
-# a copy of the License at
-#
-#      http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
-# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
-# License for the specific language governing permissions and limitations
-# under the License.
-
-# This small script updates the libvirt CPU map to add a gate64 cpu model
-# that can be used to enable a common 64bit capable feature set across
-# devstack nodes so that features like nova live migration work.
-
-import sys
-import xml.etree.ElementTree as ET
-from xml.dom import minidom
-
-
-def update_cpu_map(tree):
-    root = tree.getroot()
-    cpus = root#.find("cpus")
-    x86 = None
-    for arch in cpus.findall("arch"):
-        if arch.get("name") == "x86":
-            x86 = arch
-            break
-    if x86 is not None:
-        # Create a gate64 cpu model that is core2duo less monitor, pse36,
-        # vme, and ssse3.
-        gate64 = ET.SubElement(x86, "model")
-        gate64.set("name", "gate64")
-        ET.SubElement(gate64, "vendor").set("name", "Intel")
-        ET.SubElement(gate64, "feature").set("name", "fpu")
-        ET.SubElement(gate64, "feature").set("name", "de")
-        ET.SubElement(gate64, "feature").set("name", "pse")
-        ET.SubElement(gate64, "feature").set("name", "tsc")
-        ET.SubElement(gate64, "feature").set("name", "msr")
-        ET.SubElement(gate64, "feature").set("name", "pae")
-        ET.SubElement(gate64, "feature").set("name", "mce")
-        ET.SubElement(gate64, "feature").set("name", "cx8")
-        ET.SubElement(gate64, "feature").set("name", "apic")
-        ET.SubElement(gate64, "feature").set("name", "sep")
-        ET.SubElement(gate64, "feature").set("name", "pge")
-        ET.SubElement(gate64, "feature").set("name", "cmov")
-        ET.SubElement(gate64, "feature").set("name", "pat")
-        ET.SubElement(gate64, "feature").set("name", "mmx")
-        ET.SubElement(gate64, "feature").set("name", "fxsr")
-        ET.SubElement(gate64, "feature").set("name", "sse")
-        ET.SubElement(gate64, "feature").set("name", "sse2")
-        ET.SubElement(gate64, "feature").set("name", "mtrr")
-        ET.SubElement(gate64, "feature").set("name", "mca")
-        ET.SubElement(gate64, "feature").set("name", "clflush")
-        ET.SubElement(gate64, "feature").set("name", "pni")
-        ET.SubElement(gate64, "feature").set("name", "nx")
-        ET.SubElement(gate64, "feature").set("name", "syscall")
-        ET.SubElement(gate64, "feature").set("name", "lm")
-
-
-def format_xml(root):
-    # Adapted from http://pymotw.com/2/xml/etree/ElementTree/create.html
-    # thank you dhellmann
-    rough_string = ET.tostring(root, encoding="UTF-8")
-    dom_parsed = minidom.parseString(rough_string)
-    return dom_parsed.toprettyxml("  ", encoding="UTF-8")
-
-
-def main():
-    if len(sys.argv) != 2:
-        raise Exception("Must pass path to cpu_map.xml to update")
-    cpu_map = sys.argv[1]
-    tree = ET.parse(cpu_map)
-    for model in tree.getroot().iter("model"):
-        if model.get("name") == "gate64":
-            # gate64 model is already present
-            return
-    update_cpu_map(tree)
-    pretty_xml = format_xml(tree.getroot())
-    with open(cpu_map, 'w') as f:
-        f.write(pretty_xml)
-
-
-if __name__ == "__main__":
-    main()