*repos/domain/cpu_topology.py
---
repos/domain/cpu_topology.py | 248 ++++++++++++++++++++++++++++++++++++++++++
1 files changed, 248 insertions(+), 0 deletions(-)
create mode 100644 repos/domain/cpu_topology.py
diff --git a/repos/domain/cpu_topology.py b/repos/domain/cpu_topology.py
new file mode 100644
index 0000000..7202559
--- /dev/null
+++ b/repos/domain/cpu_topology.py
@@ -0,0 +1,248 @@
+#!/usr/bin/env python
+""" To test guest cpu topology
+ domain:cpu_topology
+ guestname
+ xxx
+ username
+ root
+ password
+ xxxxxx
+ sockets
+ 2
+ cores
+ 1
+ threads
+ 2
+"""
+
+__author__ = 'Guannan Ren: gren@xxxxxxxxxx'
+__date__ = 'Tue Aug 30, 2011'
+__version__ = '0.1.0'
+__credits__ = 'Copyright (C) 2011 Red Hat, Inc.'
+__all__ = []
+
+import os
+import re
+import sys
+import time
+from xml.dom import minidom
+
+def append_path(path):
+ """Append root path of package"""
+ if path in sys.path:
+ pass
+ else:
+ sys.path.append(path)
+
+pwd = os.getcwd()
+result = re.search('(.*)libvirt-test-API', pwd)
+append_path(result.group(0))
+
+from lib import connectAPI
+from lib import domainAPI
+from utils.Python import utils
+from exception import LibvirtAPI
+
+def check_params(params):
+ """check out the arguments requried for testing"""
+ logger = params['logger']
+ keys = ['guestname', 'username', 'password',
+ 'sockets', 'cores', 'threads']
+ for key in keys:
+ if key not in params:
+ logger.error("Argument %s is required" % key)
+ return 1
+ return 0
+
+def check_domain_running(domobj, guestname, logger):
+ """check if the domain exists, may or may not be active"""
+ defined_guest_names = domobj.get_defined_list()
+
+ if guestname not in defined_guest_names:
+ logger.error("%s doesn't exist or still in running" % guestname)
+ return 1
+ else:
+ return 0
+
+def add_cpu_xml(domobj, guestname, sockets, cores, threads, logger):
+ """edit domain xml description and insert <cpu> element"""
+
+ guestxml = domobj.get_xml_desc(guestname)
+ logger.debug('''original guest %s xml :\n%s''' %(guestname, guestxml))
+
+ doc = minidom.parseString(guestxml)
+ cpu = doc.createElement('cpu')
+ topology = doc.createElement('topology')
+ topology.setAttribute('sockets', sockets)
+ topology.setAttribute('cores', cores)
+ topology.setAttribute('threads', threads)
+ cpu.appendChild(topology)
+
+ vcpuval = int(sockets) * int(cores) * int(threads)
+ newvcpu = doc.createElement('vcpu')
+ newvcpuval = doc.createTextNode(str(vcpuval))
+ newvcpu.appendChild(newvcpuval)
+ oldvcpu = doc.getElementsByTagName('vcpu')[0]
+
+ domain = doc.getElementsByTagName('domain')[0]
+ domain.appendChild(cpu)
+ domain.replaceChild(newvcpu, oldvcpu)
+
+ return doc.toxml()
+
+def guest_undefine(domobj, guestname, logger):
+ """undefine original guest"""
+ try:
+ logger.info("undefine guest")
+ domobj.undefine(guestname)
+ logger.info("undefine the domain is successful")
+ except LibvirtAPI, e:
+ logger.error("API error message: %s, error code is %s" % \
+ (e.response()['message'], e.response()['code']))
+ logger.error("fail to undefine domain")
+ return 1
+
+ return 0
+
+def guest_define(domobj, domxml, logger):
+ """define new guest xml"""
+ try:
+ logger.info("define guest")
+ domobj.define(domxml)
+ logger.info("success to define new domain xml description")
+ except LibvirtAPI, e:
+ logger.error("API error message: %s, error code is %s" % \
+ (e.response()['message'], e.response()['code']))
+ logger.error("fail to define domain")
+ return 1
+
+ return 0
+
+def guest_start(domobj, guestname, util, logger):
+ """start guest"""
+ timeout = 600
+ ip = ''
+ mac = util.get_dom_mac_addr(guestname)
+
+ try:
+ logger.info("start guest")
+ domobj.start(guestname)
+ except LibvirtAPI, e:
+ logger.error("API error message: %s, error code is %s" % \
+ (e.response()['message'], e.response()['code']))
+ logger.error("fail to start domain")
+ return 1
+
+ while timeout:
+ time.sleep(10)
+ timeout -= 10
+
+ ip = util.mac_to_ip(mac, 180)
+
+ if not ip:
+ logger.info(str(timeout) + "s left")
+ else:
+ logger.info("vm %s power on successfully" % guestname)
+ logger.info("the ip address of vm %s is %s" % (guestname, ip))
+ break
+
+ if timeout <= 0:
+ logger.info("fail to power on vm %s" % guestname)
+ return 1, ip
+
+ return 0, ip
+
+def cpu_topology_check(ip, username, password,
+ sockets, cores, threads, util, logger):
+ """login the guest, run lscpu command to check the result"""
+ lscpu = "lscpu"
+ # sleep for 5 seconds
+ time.sleep(40)
+ ret, output = util.remote_exec_pexpect(ip, username, password, lscpu)
+ logger.debug("lscpu:")
+ logger.debug(output)
+ if ret:
+ logger.error("failed to run lscpu on guest OS")
+ return 1
+
+ int = 0
+ actual_thread = actual_core = actual_socket = ''
+
+ for item in output.strip().split('\r'):
+ if int == 5:
+ actual_thread = item.split()[-1]
+ logger.info("the actual thread in the guest is %s" % actual_thread)
+ if int == 6:
+ actual_core = item.split()[-1]
+ logger.info("the actual core in the guest is %s" % actual_core)
+ if int == 7:
+ actual_socket = item.split()[-1]
+ logger.info("the actual socket in the guest is %s" % actual_socket)
+
+ int += 1
+
+ if actual_thread == '' or actual_core == '' or actual_socket == '':
+ logger.error("No data was retrieved")
+ return 1
+
+ if actual_thread == threads and actual_core == cores and actual_socket == sockets:
+ return 0
+ else:
+ logger.error("The data doesn't match!!!")
+ return 1
+
+def cpu_topology(params):
+ """ edit domain xml description according to the values
+ and login to the guest to check the results
+ """
+ logger = params['logger']
+ params_check_result = check_params(params)
+ if params_check_result:
+ return 1
+
+ guestname = params['guestname']
+ username = params['username']
+ password = params['password']
+ sockets = params['sockets']
+ cores = params['cores']
+ threads = params['threads']
+
+ logger.info("guestname is %s" % guestname)
+ logger.info("sockets is %s" % sockets)
+ logger.info("cores is %s" % cores)
+ logger.info("threads is %s" % threads)
+
+ util = utils.Utils()
+ uri = util.get_uri('127.0.0.1')
+
+ logger.info("the uri is %s" % uri)
+ conn = connectAPI.ConnectAPI()
+ virconn = conn.open(uri)
+ domobj = domainAPI.DomainAPI(virconn)
+
+ if check_domain_running(domobj, guestname, logger):
+ conn.close()
+ return 1
+
+ domxml = add_cpu_xml(domobj, guestname, sockets, cores, threads, logger)
+
+ if guest_undefine(domobj, guestname, logger):
+ conn.close()
+ return 1
+
+ if guest_define(domobj, domxml, logger):
+ conn.close()
+ return 1
+
+ ret, ip = guest_start(domobj, guestname, util, logger)
+ if ret:
+ conn.close()
+ return 1
+
+ if cpu_topology_check(ip, username, password,
+ sockets, cores, threads, util, logger):
+ conn.close()
+ return 1
+
+ conn.close()
+ return 0
--
1.7.1
--
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