def numa_param_live(params):
"""set domain numa parameters with live flag and check
"""
global logger
logger = params['logger']
params.pop('logger')
guestname = params['guestname']
nodeset = params['nodeset']
mode = int(params['mode'])
logger.info("the name of virtual machine is %s" % guestname)
logger.info("the given node number is: %s" % nodeset)
logger.info("the given mode is: %s" % mode)
global node_num
cmd = "lscpu|grep 'NUMA node(s)'"
ret, output = utils.exec_cmd(cmd, shell=True)
node_num = int(output[0].split(' ')[-1])
node_tuple = utils.param_to_tuple(nodeset, node_num)
logger.debug("nodeset to tuple is:")
logger.debug(node_tuple)
param = {'numa_nodeset': nodeset, 'numa_mode': mode}
logger.info("numa param dict for set is: %s" % param)
conn = sharedmod.libvirtobj['conn']
try:
domobj = conn.lookupByName(guestname)
logger.info("set domain numa parameters with flag: %s" %
libvirt.VIR_DOMAIN_AFFECT_LIVE)
domobj.setNumaParameters(param, libvirt.VIR_DOMAIN_AFFECT_LIVE)
logger.info("set domain numa parameters succeed")
logger.info("check numa parameters")
ret = domobj.numaParameters(libvirt.VIR_DOMAIN_AFFECT_LIVE)
logger.info("numa parameters after set is: %s" % ret)
new_tuple = utils.param_to_tuple(ret['numa_nodeset'], node_num)
if not new_tuple:
logger.error("fail to parse nodeset to tuple")
return 1
if new_tuple == node_tuple and ret['numa_mode'] == mode:
logger.info("numa parameters is as expected")
else:
logger.error("numa parameters is not as expected")
return 1
except libvirtError, e:
logger.error("libvirt call failed: " + str(e))
return 1
def numa_param_live(params):
"""set domain numa parameters with live flag and check
"""
global logger
logger = params['logger']
params.pop('logger')
guestname = params['guestname']
nodeset = params['nodeset']
mode = int(params['mode'])
logger.info("the name of virtual machine is %s" % guestname)
logger.info("the given node number is: %s" % nodeset)
logger.info("the given mode is: %s" % mode)
global node_num
cmd = "lscpu|grep 'NUMA node(s)'"
ret, output = utils.exec_cmd(cmd, shell=True)
node_num = int(output[0].split(' ')[-1])
node_tuple = utils.param_to_tuple(nodeset, node_num)
logger.debug("nodeset to tuple is:")
logger.debug(node_tuple)
param = {'numa_nodeset': nodeset, 'numa_mode': mode}
logger.info("numa param dict for set is: %s" % param)
conn = sharedmod.libvirtobj['conn']
try:
domobj = conn.lookupByName(guestname)
logger.info("set domain numa parameters with flag: %s" %
libvirt.VIR_DOMAIN_AFFECT_LIVE)
domobj.setNumaParameters(param, libvirt.VIR_DOMAIN_AFFECT_LIVE)
logger.info("set domain numa parameters succeed")
logger.info("check numa parameters")
ret = domobj.numaParameters(libvirt.VIR_DOMAIN_AFFECT_LIVE)
logger.info("numa parameters after set is: %s" % ret)
new_tuple = utils.param_to_tuple(ret['numa_nodeset'], node_num)
if not new_tuple:
logger.error("fail to parse nodeset to tuple")
return 1
if new_tuple == node_tuple and ret['numa_mode'] == mode:
logger.info("numa parameters is as expected")
else:
logger.error("numa parameters is not as expected")
return 1
except libvirtError, e:
logger.error("libvirt call failed: " + str(e))
return 1
def check_numa_params(guestname, mode, node_tuple):
"""dump domain live xml description to check numa params and
check memory allowed list of domain pid
"""
cmd = "cat /var/run/libvirt/qemu/%s.pid" % guestname
status, pid = utils.exec_cmd(cmd, shell=True)
if status:
logger.error("failed to get the pid of domain %s" % guestname)
return 1
cmd = "grep Mems_allowed_list /proc/%s/status" % pid[0]
status, output = utils.exec_cmd(cmd, shell=True)
nodeval = output[0].split('\t')[1]
ret = utils.param_to_tuple(nodeset_val, node_num)
logger.info("Mems_allowed_list in domain pid status is: %s" % nodeval)
logger.debug("parse nodeset to tuple is:")
logger.debug(ret)
if not ret:
logger.error("fail to parse nodeset to tuple")
return 1
# TODO: add check for mode
if ret == node_tuple:
return 0
else:
return 1
def check_numa_params(guestname, mode, node_tuple):
"""dump domain live xml description to check numa params and
check memory allowed list of domain pid
"""
cmd = "cat /var/run/libvirt/qemu/%s.pid" % guestname
status, pid = utils.exec_cmd(cmd, shell=True)
if status:
logger.error("failed to get the pid of domain %s" % guestname)
return 1
cmd = "grep Mems_allowed_list /proc/%s/status" % pid[0]
status, output = utils.exec_cmd(cmd, shell=True)
nodeval = output[0].split('\t')[1]
ret = utils.param_to_tuple(nodeval, node_num)
logger.info("Mems_allowed_list in domain pid status is: %s" % nodeval)
logger.debug("parse nodeset to tuple is:")
logger.debug(ret)
if not ret:
logger.error("fail to parse nodeset to tuple")
return 1
# TODO: add check for mode
if ret == node_tuple:
return 0
else:
return 1
def check_pinemulator(guestname, maxcpu, pininfo_after):
"""check emulator status of the running virtual machine
"""
cmd = "cat /var/run/libvirt/qemu/%s.pid" % guestname
status, pid = utils.exec_cmd(cmd, shell=True)
if status:
logger.error("failed to get the pid of domain %s" % guestname)
return 1
cmd = "grep Cpus_allowed_list /proc/%s/task/%s/status" % (pid[0], pid[0])
status, output = utils.exec_cmd(cmd, shell=True)
if status:
logger.error("failed to get Cpus_allowed_list")
return 1
cpu_allowed_list = output[0]
cpulistcheck = cpu_allowed_list.split('\t')[1]
pininfo_in_process = str(utils.param_to_tuple(cpulistcheck, maxcpu))
if cmp(pininfo_in_process, pininfo_after):
logger.error("domain emulator pin failed")
return 1
else:
logger.info("domain emulator pin successed")
return 0
def vcpupin_check(guestname, vcpu, cpumap):
"""check vcpu subprocess status of the running virtual machine
grep Cpus_allowed_list /proc/PID/task/*/status
"""
tmp_str = ''
cmd = "cat /var/run/libvirt/qemu/%s.pid" % guestname
status, pid = utils.exec_cmd(cmd, shell=True)
if status:
logger.error("failed to get the pid of domain %s" % guestname)
return 1
cmd = "grep Cpus_allowed_list /proc/%s/task/*/status" % pid[0]
status, output = utils.exec_cmd(cmd, shell=True)
logger.debug("command '%s' output is:" % cmd)
for i in range(len(output)):
tmp_str += ''.join(output[i]) + '\n'
logger.debug(tmp_str)
task_list = output[1:]
vcpu_task = task_list[int(vcpu)]
cpulist = vcpu_task.split('\t')[1]
ret = utils.param_to_tuple(cpulist, maxcpu)
if ret == cpumap:
logger.info("vcpu process cpus allowed list is expected")
return 0
else:
logger.error("vcpu process cpus allowed list is not expected")
return 1
def check_pinemulator(guestname, maxcpu, pininfo_after):
"""check emulator status of the running virtual machine
"""
cmd = "cat /var/run/libvirt/qemu/%s.pid" % guestname
status, pid = utils.exec_cmd(cmd, shell=True)
if status:
logger.error("failed to get the pid of domain %s" % guestname)
return 1
cmd = "grep Cpus_allowed_list /proc/%s/task/%s/status" % (pid[0], pid[0])
status, output = utils.exec_cmd(cmd, shell=True)
if status:
logger.error("failed to get Cpus_allowed_list")
return 1
cpu_allowed_list = output[0]
cpulistcheck = cpu_allowed_list.split('\t')[1]
pininfo_in_process = str(utils.param_to_tuple(cpulistcheck, maxcpu))
if cmp(pininfo_in_process, pininfo_after):
logger.error("domain emulator pin failed")
return 1
else:
logger.info("domain emulator pin successed")
return 0
def vcpupin_live(params):
"""pin domain vcpu to host cpu with live flag
"""
global logger
logger = params['logger']
params.pop('logger')
guestname = params['guestname']
vcpu = int(params['vcpu'])
cpulist = params['cpulist']
logger.info("the name of virtual machine is %s" % guestname)
logger.info("the given vcpu is %s" % vcpu)
logger.info("the given cpulist is %s" % cpulist)
global maxcpu
maxcpu = utils.get_host_cpus()
logger.info("%s physical cpu on host" % maxcpu)
conn = sharedmod.libvirtobj['conn']
try:
domobj = conn.lookupByName(guestname)
cpumap = utils.param_to_tuple(cpulist, maxcpu)
if not cpumap:
logger.error("cpulist: Invalid format")
return 1
logger.debug("cpumap for vcpu pin is:")
logger.debug(cpumap)
logger.info("pin domain vcpu %s to host cpu %s with flag: %s" %
(vcpu, cpulist, libvirt.VIR_DOMAIN_AFFECT_LIVE))
domobj.pinVcpuFlags(vcpu, cpumap, libvirt.VIR_DOMAIN_AFFECT_LIVE)
logger.info("check vcpus info")
ret = domobj.vcpus()
logger.debug("vcpus info is:")
logger.debug(ret)
if ret[1][vcpu] == cpumap:
logger.info("vcpus info is expected")
else:
logger.error("vcpus info is not expected")
return 1
except libvirtError as e:
logger.error("libvirt call failed: " + str(e))
return 1
logger.info("check vcpu pin status on host")
ret = vcpupin_check(guestname, vcpu, cpulist)
if ret:
logger.error("domain vcpu pin failed")
return 1
else:
logger.info("domain vcpu pin succeed")
return 0
def vcpupin_config(params):
"""pin domain vcpu to host cpu with config flag
"""
global logger
logger = params['logger']
params.pop('logger')
guestname = params['guestname']
vcpu = int(params['vcpu'])
cpulist = params['cpulist']
logger.info("the name of virtual machine is %s" % guestname)
logger.info("the given vcpu is %s" % vcpu)
logger.info("the given cpulist is %s" % cpulist)
global maxcpu
maxcpu = utils.get_host_cpus()
logger.info("%s physical cpu on host" % maxcpu)
conn = sharedmod.libvirtobj['conn']
try:
domobj = conn.lookupByName(guestname)
cpumap = utils.param_to_tuple(cpulist, maxcpu)
if not cpumap:
logger.error("cpulist: Invalid format")
return 1
logger.debug("cpumap for vcpu pin is:")
logger.debug(cpumap)
logger.info("pin domain vcpu %s to host cpulist %s with flag: %s" %
(vcpu, cpulist, libvirt.VIR_DOMAIN_AFFECT_CONFIG))
domobj.pinVcpuFlags(vcpu, cpumap, libvirt.VIR_DOMAIN_AFFECT_CONFIG)
logger.info("check vcpu pin info")
ret = domobj.vcpuPinInfo(libvirt.VIR_DOMAIN_AFFECT_CONFIG)
logger.debug("vcpu pin info is:")
logger.debug(ret)
if ret[vcpu] == cpumap:
logger.info("vcpu pin info is expected")
else:
logger.error("vcpu pin info is not expected")
return 1
except libvirtError as e:
logger.error("libvirt call failed: " + str(e))
return 1
logger.info("check domain vcpupin configuration in xml")
ret = vcpupin_check(domobj, vcpu, cpumap)
if ret:
logger.error("domain vcpu pin check failed")
return 1
else:
logger.info("domain vcpu pin check succeed")
return 0
def pinemulator(params):
"""Dynamically change the real CPUs which can be allocated to the
emulator process of a domain. This function requires privileged
access to the hypervisor. """
global logger
logger = params['logger']
guestname = params['guestname']
cpulist = params['cpulist']
logger.info("the name of virtual machine is %s" % guestname)
logger.info("the given cpulist is %s" % cpulist)
maxcpu = utils.get_host_cpus()
logger.info("%s physical cpu on host" % maxcpu)
cpumap = utils.param_to_tuple(cpulist, maxcpu)
if not cpumap:
logger.error("cpulist: Invalid format")
return 1
conn = sharedmod.libvirtobj['conn']
try:
domobj = conn.lookupByName(guestname)
pininfo_original = str(domobj.emulatorPinInfo())
logger.info("the original emulator pin of the domain is: %s" %
pininfo_original)
logger.info("pin domain emulator to host cpu %s" % cpulist)
domobj.pinEmulator(cpumap)
pininfo_after = str(domobj.emulatorPinInfo())
logger.info("the revised emulator pin of the domain is: %s" %
pininfo_after)
ret = check_pinemulator(guestname, maxcpu, pininfo_after)
return ret
except libvirtError as e:
logger.error("libvirt call failed: " + str(e))
return 1
def pinemulator(params):
"""Dynamically change the real CPUs which can be allocated to the
emulator process of a domain. This function requires privileged
access to the hypervisor. """
global logger
logger = params['logger']
guestname = params['guestname']
cpulist = params['cpulist']
logger.info("the name of virtual machine is %s" % guestname)
logger.info("the given cpulist is %s" % cpulist)
maxcpu = utils.get_host_cpus()
logger.info("%s physical cpu on host" % maxcpu)
cpumap = utils.param_to_tuple(cpulist, maxcpu)
if not cpumap:
logger.error("cpulist: Invalid format")
return 1
conn = sharedmod.libvirtobj['conn']
try:
domobj = conn.lookupByName(guestname)
pininfo_original = str(domobj.emulatorPinInfo())
logger.info("the original emulator pin of the domain is: %s" %
pininfo_original)
logger.info("pin domain emulator to host cpu %s" % cpulist)
domobj.pinEmulator(cpumap)
pininfo_after = str(domobj.emulatorPinInfo())
logger.info("the revised emulator pin of the domain is: %s" %
pininfo_after)
ret = check_pinemulator(guestname, maxcpu, pininfo_after)
return ret
except libvirtError as e:
logger.error("libvirt call failed: " + str(e))
return 1
def check_numa_params(domobj, mode, node_tuple):
"""dump domain config xml description to check numa params
"""
guestxml = domobj.XMLDesc(2)
logger.debug("domain %s xml is :\n%s" % (domobj.name(), guestxml))
xml = minidom.parseString(guestxml)
numatune = xml.getElementsByTagName('numatune')[0]
mem_element = numatune.getElementsByTagName('memory')[0]
if mem_element.hasAttribute('mode') and \
mem_element.hasAttribute('nodeset'):
attr = mem_element.getAttributeNode('mode')
mode_val = attr.nodeValue
logger.info("memory mode in config xml is: %s" % mode_val)
if mode_val == 'strict':
mode_num = 0
elif mode_val == 'preferred':
mode_num = 1
elif mode_val == 'interleave':
mode_num = 2
else:
logger.error("mode value is invalid")
return 1
attr = mem_element.getAttributeNode('nodeset')
nodeset_val = attr.nodeValue
logger.info("nodeset in config xml is: %s" % nodeset_val)
else:
logger.error("no 'mode' and 'nodeset' atrribute for element memory")
return 1
ret = utils.param_to_tuple(nodeset_val, node_num)
logger.debug("nudeset in config xml to tuple is:")
logger.debug(ret)
if not ret:
logger.error("fail to parse nodeset to tuple")
return 1
if mode_num == mode and ret == node_tuple:
return 0
else:
return 1
def vcpupin_check(domobj, vcpu, cpumap):
"""check domain config xml with vcpupin element
"""
guestxml = domobj.XMLDesc(2)
logger.debug("domain %s xml :\n%s" % (domobj.name(), guestxml))
doc = minidom.parseString(guestxml)
vcpupin = doc.getElementsByTagName('vcpupin')
if not vcpupin:
logger.error("no vcpupin element in domain xml")
return 1
for i in range(len(vcpupin)):
if vcpupin[i].hasAttribute('vcpu') and \
vcpupin[i].hasAttribute('cpuset'):
vcpu_attr = vcpupin[i].getAttributeNode('vcpu')
cpu_attr = vcpupin[i].getAttributeNode('cpuset')
if int(vcpu_attr.nodeValue) == vcpu:
cpulist = cpu_attr.nodeValue
if cpulist == '':
cpumap_tmp = ()
for i in range(maxcpu):
cpumap_tmp += (False, )
else:
cpumap_tmp = utils.param_to_tuple(cpulist, maxcpu)
if cpumap_tmp == cpumap:
logger.info("cpuset is as expected in domain xml")
return 0
else:
logger.error("cpuset is not as expected in domain xml")
return 1
if i == len(vcpupin) - 1:
logger.error("the vcpupin element with given vcpu is not found")
return 1
def vcpupin_check(domobj, vcpu, cpumap):
"""check domain config xml with vcpupin element
"""
guestxml = domobj.XMLDesc(2)
logger.debug("domain %s xml :\n%s" %(domobj.name(), guestxml))
doc = minidom.parseString(guestxml)
vcpupin = doc.getElementsByTagName('vcpupin')
if not vcpupin:
logger.error("no vcpupin element in domain xml")
return 1
for i in range(len(vcpupin)):
if vcpupin[i].hasAttribute('vcpu') and \
vcpupin[i].hasAttribute('cpuset'):
vcpu_attr = vcpupin[i].getAttributeNode('vcpu')
cpu_attr = vcpupin[i].getAttributeNode('cpuset')
if int(vcpu_attr.nodeValue) == vcpu:
cpulist = cpu_attr.nodeValue
if cpulist == '':
cpumap_tmp = ()
for i in range(maxcpu):
cpumap_tmp += (False,)
else:
cpumap_tmp = utils.param_to_tuple(cpulist, maxcpu)
if cpumap_tmp == cpumap:
logger.info("cpuset is as expected in domain xml")
return 0
else:
logger.error("cpuset is not as expected in domain xml")
return 1
if i == len(vcpupin) - 1:
logger.error("the vcpupin element with given vcpu is not found")
return 1
def pin_iothread(params):
"""
test API for pinIOThread in class virDomain
"""
global logger
logger = params["logger"]
fail = 0
try:
conn = libvirt.open(params["conn"])
logger.info("get connection to libvirtd")
guest = params["guestname"]
vm = conn.lookupByName(guest)
hostcpu = utils.get_host_cpus()
tu_cpu = ()
logger.info("test guest name: %s" % guest)
for i in range(hostcpu):
if i % 2 == 0:
tu_cpu += (1,)
else:
tu_cpu += (0,)
""" test effect a running guest"""
if vm.isActive() == 1:
logger.info("guest is running test with running guest")
if not find_iothreadid_fromxml(vm, 1, 1):
logger.info("add iothread %d to running guest" % 1)
vm.addIOThread(i, libvirt.VIR_DOMAIN_AFFECT_LIVE)
vm.pinIOThread(1, tu_cpu, libvirt.VIR_DOMAIN_AFFECT_LIVE)
cpuset = find_iothreadpin_fromxml(vm, 1, 1)
if cpuset:
if not check_iothreadpin(vm, 1, cpuset):
fail = 1
tmp_cpuset = utils.param_to_tuple(cpuset, hostcpu)
if not tmp_cpuset:
fail = 1
elif tmp_cpuset != tu_cpu:
logger.info("FAIL: the cpuset in xml is not equal the cpuset we set")
fail = 1
else:
logger.info("FAIL: cannot find iothreadpin in XML")
fail = 1
""" test effect guest config"""
logger.info("test with guest inactive XML")
if not find_iothreadid_fromxml(vm, 0, 1):
logger.info("add iothread 1 to guest config")
vm.addIOThread(1, libvirt.VIR_DOMAIN_AFFECT_CONFIG)
vm.pinIOThread(1, tu_cpu, libvirt.VIR_DOMAIN_AFFECT_LIVE)
cpuset = find_iothreadpin_fromxml(vm, 1, 1)
if cpuset:
tmp_cpuset = utils.param_to_tuple(cpuset, hostcpu)
if not tmp_cpuset:
fail = 1
elif tmp_cpuset != tu_cpu:
logger.info("FAIL: the cpuset in xml is not equal the cpuset we set")
fail = 1
else:
logger.info("FAIL: cannot find iothreadpin in XML")
fail = 1
except libvirtError, e:
logger.error("API error message: %s" % e.message)
fail = 1
def pin_iothread(params):
"""
test API for pinIOThread in class virDomain
"""
global logger
logger = params['logger']
fail = 0
try:
conn = libvirt.open(params['conn'])
logger.info("get connection to libvirtd")
guest = params['guestname']
vm = conn.lookupByName(guest)
hostcpu = utils.get_host_cpus()
tu_cpu = ()
logger.info("test guest name: %s" % guest)
for i in range(hostcpu):
if i % 2 == 0:
tu_cpu += (1, )
else:
tu_cpu += (0, )
""" test effect a running guest"""
if vm.isActive() == 1:
logger.info("guest is running test with running guest")
if not find_iothreadid_fromxml(vm, 1, 1):
logger.info("add iothread %d to running guest" % 1)
vm.addIOThread(i, libvirt.VIR_DOMAIN_AFFECT_LIVE)
vm.pinIOThread(1, tu_cpu, libvirt.VIR_DOMAIN_AFFECT_LIVE)
cpuset = find_iothreadpin_fromxml(vm, 1, 1)
if cpuset:
if not check_iothreadpin(vm, 1, cpuset):
fail = 1
tmp_cpuset = utils.param_to_tuple(cpuset, hostcpu)
if not tmp_cpuset:
fail = 1
elif tmp_cpuset != tu_cpu:
logger.info(
"FAIL: the cpuset in xml is not equal the cpuset we set"
)
fail = 1
else:
logger.info("FAIL: cannot find iothreadpin in XML")
fail = 1
""" test effect guest config"""
logger.info("test with guest inactive XML")
if not find_iothreadid_fromxml(vm, 0, 1):
logger.info("add iothread 1 to guest config")
vm.addIOThread(1, libvirt.VIR_DOMAIN_AFFECT_CONFIG)
vm.pinIOThread(1, tu_cpu, libvirt.VIR_DOMAIN_AFFECT_LIVE)
cpuset = find_iothreadpin_fromxml(vm, 1, 1)
if cpuset:
tmp_cpuset = utils.param_to_tuple(cpuset, hostcpu)
if not tmp_cpuset:
fail = 1
elif tmp_cpuset != tu_cpu:
logger.info(
"FAIL: the cpuset in xml is not equal the cpuset we set")
fail = 1
else:
logger.info("FAIL: cannot find iothreadpin in XML")
fail = 1
except libvirtError, e:
logger.error("API error message: %s" % e.message)
fail = 1
