def prepare_vm(guest_xml, params):
"""
Configure guest xml before the test.
:param guest_xml: the guest xml
:param params: the dict the cases use
"""
logging.debug("Begin to prepare vm xml")
iothread_id = params.get("iothread_id")
vm_name = params.get("main_vm")
vcpu_attrs = eval(params.get('vcpu_attrs', '{}'))
if vcpu_attrs:
guest_xml.setup_attrs(**vcpu_attrs)
if guest_xml.xmltreefile.find('cputune'):
guest_xml.del_cputune()
cputune = vm_xml.VMCPUTuneXML()
cputune_attrs = params.get('cputune_attrs')
if cputune_attrs and cputune_attrs.count("%s"):
cputune_attrs = cputune_attrs % params.get('cpulist', '0')
if cputune_attrs:
cputune_attrs = eval(cputune_attrs)
cputune.setup_attrs(**cputune_attrs)
guest_xml.cputune = cputune
guest_xml.sync()
if iothread_id:
virsh.iothreadadd(vm_name, iothread_id, '--config',
ignore_status=False, debug=True)
def add_iothread(vm, thread_id="1"):
"""
Add a iothread to a vm process
:param vm: The vm to add iothread
:param thread_id: The iothread id to be used
"""
if vm.is_alive():
virsh.iothreadadd(vm.name, thread_id)
else:
logging.debug("VM is not alive, cannot add iothread")
def add_iothread(vm_name, iothread_add_id_list):
"""
Add iothread to the vm
:param vm_name: vm name
:param iothread_add_id_list: list, iothread id list to add
"""
for one_iothread in iothread_add_id_list:
virsh.iothreadadd(vm_name,
one_iothread,
'',
ignore_status=False,
debug=True)
def exec_iothreadadd():
"""
Run "virsh iothreadadd" and check xml
:raise: test.fail if virsh command failed
"""
virsh.iothreadadd(vm_name, iothreadadd, debug=True)
update_expected_iothreadinfo(exp_iothread_info, iothreadadd, "add")
# Check xml
xml_info = vm_xml.VMXML.new_from_dumpxml(vm_name)
if iothreadadd not in xml_info.iothreadids.iothread:
test.fail(
"The iothread id {} is not added into xml".format(iothreadadd))
def prepare_vm(guest_xml, params):
"""
Configure guest xml before the test.
:param guest_xml: the guest xml
:param params: the dict the cases use
"""
vcpu_placement = params.get("vcpu_placement", "static")
iothread_id = params.get("iothread_id", "1")
vcpu_current = params.get("vcpu_current", 3)
vcpu_max = params.get("vcpu_max", 4)
vm_name = params.get("main_vm")
guest_xml.placement = vcpu_placement
guest_xml.current_vcpu = int(vcpu_current)
guest_xml.vcpu = int(vcpu_max)
# Remove existing vcpupin configuration if any
if guest_xml.xmltreefile.find('cputune'):
guest_xml.del_cputune()
guest_xml.sync()
virsh.iothreadadd(vm_name, iothread_id, '--config', ignore_status=False, debug=True)
def prepare_vm(guest_xml, params):
"""
Configure guest xml before the test.
:param guest_xml: the guest xml
:param params: the dict the cases use
"""
vcpu_placement = params.get("vcpu_placement", "static")
iothread_id = params.get("iothread_id", "1")
vcpu_current = params.get("vcpu_current", 3)
vcpu_max = params.get("vcpu_max", 4)
vm_name = params.get("main_vm")
guest_xml.placement = vcpu_placement
guest_xml.current_vcpu = int(vcpu_current)
guest_xml.vcpu = vcpu_max
guest_xml.sync()
virsh.iothreadadd(vm_name,
iothread_id,
'--config',
ignore_status=False,
debug=True)
def run(test, params, env):
"""
Test command: virsh iothread.
The command can change the number of iothread.
1.Prepare test environment,destroy or suspend a VM.
2.Perform virsh iothreadadd operation.
3.Recover test environment.
4.Confirm the test result.
"""
vm_name = params.get("main_vm")
vm = env.get_vm(vm_name)
pre_vm_state = params.get("iothread_pre_vm_state")
command = params.get("iothread_command", "iothreadadd")
options = params.get("iothread_options")
vm_ref = params.get("iothread_vm_ref", "name")
iothreads = params.get("iothreads", 4)
iothread_id = params.get("iothread_id", "6")
status_error = "yes" == params.get("status_error")
iothreadids = params.get("iothreadids")
iothreadpins = params.get("iothreadpins")
try:
iothreads = int(iothreads)
except ValueError:
# 'iothreads' may not invalid number in negative tests
logging.debug("Can't convert %s to integer type", iothreads)
# Save original configuration
vmxml = vm_xml.VMXML.new_from_inactive_dumpxml(vm_name)
orig_config_xml = vmxml.copy()
try:
if vm.is_alive():
vm.destroy()
option_list = options.split(" ")
for item in option_list:
if virsh.has_command_help_match(command, item) is None:
raise exceptions.TestSkipError("The current libvirt version"
" doesn't support '%s' option"
% item)
# Set iothreads first
if iothreadids:
ids_xml = vm_xml.VMIothreadidsXML()
ids_xml.iothread = iothreadids.split()
vmxml.iothreadids = ids_xml
if iothreadpins:
cputune_xml = vm_xml.VMCPUTuneXML()
io_pins = []
for pins in iothreadpins.split():
thread, cpuset = pins.split(':')
io_pins.append({"iothread": thread,
"cpuset": cpuset})
cputune_xml.iothreadpins = io_pins
vmxml.cputune = cputune_xml
vmxml.iothreads = iothreads
logging.debug("Pre-test xml is %s", vmxml)
vmxml.sync()
# Restart, unless that's not our test
if not vm.is_alive():
vm.start()
vm.wait_for_login()
domid = vm.get_id() # only valid for running
domuuid = vm.get_uuid()
if pre_vm_state == "shut off" and vm.is_alive():
vm.destroy()
# Run test
if vm_ref == "name":
dom_option = vm_name
elif vm_ref == "id":
dom_option = domid
elif vm_ref == "uuid":
dom_option = domuuid
else:
dom_option = vm_ref
ret = virsh.iothreadadd(dom_option, iothread_id, options,
ignore_status=True, debug=True)
libvirt.check_exit_status(ret, status_error)
if not status_error:
# Check domainxml
iothread_info = get_xmlinfo(vm_name, options)
logging.debug("iothreadinfo: %s", iothread_info)
if iothread_id not in iothread_info:
raise exceptions.TestFail("Failed to add iothread %s in domain xml",
iothread_id)
# Check iothreadinfo by virsh command
iothread_info = libvirt.get_iothreadsinfo(dom_option, options)
logging.debug("iothreadinfo: %s", iothread_info)
if not iothread_info.has_key(iothread_id):
raise exceptions.TestFail("Failed to add iothread %s", iothread_id)
finally:
# Cleanup
if vm.is_alive():
vm.destroy()
orig_config_xml.sync()
def run(test, params, env):
"""
Test command: virsh schedinfo.
This version provide base test of virsh schedinfo command:
virsh schedinfo <vm> [--set<set_ref>]
TODO: to support more parameters.
1) Get parameters and prepare vm's state
2) Prepare test options.
3) Run schedinfo command to set or get parameters.
4) Get schedinfo in cgroup
5) Recover environment like vm's state
6) Check result.
"""
def get_parameter_in_cgroup(vm, cgroup_type, parameter):
"""
Get vm's cgroup value.
:Param vm: the vm object
:Param cgroup_type: type of cgroup we want, vcpu or emulator.
:Param parameter: the cgroup parameter of vm which we need to get.
:return: the value of parameter in cgroup.
"""
vm_pid = vm.get_pid()
cgtest = libvirt_cgroup.CgroupTest(vm_pid)
cgroup_info = cgtest.get_standardized_cgroup_info("schedinfo")
logging.debug("cgroup_info is %s" % cgroup_info)
if parameter in ["cpu.cfs_period_us", "cpu.cfs_quota_us"]:
if cgroup_type == "emulator":
parameter = "%s/%s" % (cgroup_type, parameter)
elif cgroup_type in ["vcpu", "iothread"]:
parameter = "<%sX>/%s" % (cgroup_type, parameter)
for key, value in libvirt_cgroup.CGROUP_V1_SCHEDINFO_FILE_MAPPING.items():
if value == parameter:
cgroup_ref_key = key
break
if 'cgroup_ref_key' not in locals():
test.error("{} is not found in CGROUP_V1_SCHEDINFO_FILE_MAPPING."
.format(parameter))
return cgroup_info[cgroup_ref_key]
def analyse_schedinfo_output(result, set_ref):
"""
Get the value of set_ref.
:param result: CmdResult struct
:param set_ref: the parameter has been set
:return: the value of the parameter.
"""
cg_obj = libvirt_cgroup.CgroupTest(None)
output_dict = cg_obj.convert_virsh_output_to_dict(result)
result_info = cg_obj.get_standardized_virsh_info("schedinfo", output_dict)
set_value_list = []
for set_ref_node in set_ref.split(","):
if result_info.get(set_ref_node):
set_value_list.append(result_info.get(set_ref_node))
return set_value_list
def get_current_value():
"""
Get the current schedinfo value and return
"""
current_result = virsh.schedinfo(vm_ref, " --current",
ignore_status=True, debug=True)
current_value = analyse_schedinfo_output(current_result, set_ref)
return current_value
# Prepare test options
vm_ref = params.get("schedinfo_vm_ref", "domname")
options_ref = params.get("schedinfo_options_ref", "")
options_suffix = params.get("schedinfo_options_suffix", "")
schedinfo_param = params.get("schedinfo_param", "vcpu")
set_ref = params.get("schedinfo_set_ref", "")
cgroup_ref = params.get("schedinfo_cgroup_ref", "cpu.shares")
set_value = params.get("schedinfo_set_value", "")
set_method = params.get("schedinfo_set_method", "cmd")
set_value_expected = params.get("schedinfo_set_value_expected", "")
# Libvirt version where function begins to change
libvirt_ver_function_changed = eval(params.get(
"libvirt_ver_function_changed", '[]'))
# The default scheduler on qemu/kvm is posix
scheduler_value = "posix"
status_error = params.get("status_error", "no")
start_vm = ("yes" == params.get("start_vm"))
readonly = ("yes" == params.get("schedinfo_readonly", "no"))
expect_msg = params.get("schedinfo_err_msg", "")
if libvirt_cgroup.CgroupTest(None).is_cgroup_v2_enabled():
if params.get("schedinfo_set_value_cgroupv2"):
set_value = params.get("schedinfo_set_value_cgroupv2")
if params.get("schedinfo_set_value_expected_cgroupv2"):
set_value_expected = params.get(
"schedinfo_set_value_expected_cgroupv2")
if params.get("cgroup_v2_unsupported_reason"):
test.cancel(params.get('cgroup_v2_unsupported_reason'))
if libvirt_ver_function_changed:
if not libvirt_version.version_compare(*libvirt_ver_function_changed):
set_value = params.get("schedinfo_set_value_bk")
set_value_expected = params.get("schedinfo_set_value_expected_bk")
# Prepare vm test environment
vm_name = params.get("main_vm")
# For safety reasons, we'd better back up xmlfile.
orig_config_xml = vm_xml.VMXML.new_from_inactive_dumpxml(vm_name)
if not orig_config_xml:
test.error("Backing up xmlfile failed.")
if set_ref == "none":
options_ref = "--set"
set_ref = None
elif set_ref:
# Prepare vm xml for iothread test
if schedinfo_param == 'iothread':
virsh.iothreadadd(vm_name, '1', ignore_status=False, debug=True)
if set_method == 'cmd':
if set_value:
set_ref_list = set_ref.split(",")
set_value_list = set_value.split(",")
for i in range(0, len(set_ref_list)):
if "--set" in options_ref:
options_ref += " %s=%s" % (set_ref_list[i], set_value_list[i])
else:
options_ref = "--set %s=%s" % (set_ref_list[i], set_value_list[i])
else:
options_ref = "--set %s" % set_ref
elif set_method == 'xml':
xml = vm_xml.VMXML.new_from_dumpxml(vm_name)
try:
cputune = xml.cputune
except xcepts.LibvirtXMLNotFoundError:
cputune = vm_xml.VMCPUTuneXML()
name_map = {
'cpu_shares': 'shares',
'vcpu_period': 'period',
'vcpu_quota': 'quota',
'emulator_period': 'emulator_period',
'emulator_quota': 'emulator_quota',
'global_period': 'global_period',
'global_quota': 'global_quota',
'iothread_period': 'iothread_period',
'iothread_quota': 'iothread_quota'
}
cputune[name_map[set_ref]] = int(set_value)
xml.cputune = cputune
xml.sync()
logging.debug("After setting xml, VM XML:\n%s",
vm_xml.VMXML.new_from_dumpxml(vm_name))
vm = env.get_vm(vm_name)
if vm.is_dead() and start_vm:
try:
vm.start()
except Exception as detail:
orig_config_xml.sync()
test.error(detail)
domid = vm.get_id()
domuuid = vm.get_uuid()
if vm_ref == "domid":
vm_ref = domid
elif vm_ref == "domname":
vm_ref = vm_name
elif vm_ref == "domuuid":
vm_ref = domuuid
elif vm_ref == "hex_id":
if domid == '-':
vm_ref = domid
else:
vm_ref = hex(int(domid))
options_ref += " %s " % options_suffix
# Get schedinfo with --current parameter
if set_ref and options_ref.count("config") and start_vm:
bef_current_value = get_current_value()
try:
# Run command
result = virsh.schedinfo(vm_ref, options_ref,
ignore_status=True, debug=True, readonly=readonly)
status = result.exit_status
# VM must be running to get cgroup parameters.
if not vm.is_alive():
vm.start()
if options_ref.count("config") and start_vm:
# Get schedinfo with --current parameter
aft_current_value = get_current_value()
if bef_current_value != aft_current_value:
test.fail("--config change the current %s" % set_ref)
vm.destroy()
vm.start()
vm_ref = vm.get_id()
if set_ref:
start_current_value = get_current_value()
set_value_of_cgroup = get_parameter_in_cgroup(vm, cgroup_type=schedinfo_param,
parameter=cgroup_ref)
vm.destroy(gracefully=False)
if set_ref:
set_value_of_output = analyse_schedinfo_output(result, set_ref)
# Check result
if status_error == "no":
if status:
test.fail("Run failed with right command. Error: {}"
.format(result.stderr.strip()))
else:
if set_ref and set_value_expected:
logging.info("value will be set:%s\n"
"set value in output:%s\n"
"set value in cgroup:%s\n"
"expected value:%s" % (
set_value, set_value_of_output,
set_value_of_cgroup, set_value_expected))
if set_value_of_output is None:
test.fail("Get parameter %s failed." % set_ref)
# Value in output of virsh schedinfo is not guaranteed 'correct'
# when we use --config.
# This is my attempt to fix it
# http://www.redhat.com/archives/libvir-list/2014-May/msg00466.html.
# But this patch did not go into upstream of libvirt.
# Libvirt just guarantee that the value is correct in next boot
# when we use --config. So skip checking of output in this case.
expected_value_list = sorted(set_value_expected.split(','))
if (not (expected_value_list == sorted(set_value_of_output)) and
not (options_ref.count("config"))):
test.fail("Run successful but value "
"in output is not expected.")
if len(set_value_expected.split(',')) == 1:
if not (set_value_expected == set_value_of_cgroup):
test.fail("Run successful but value "
"in cgroup is not expected.")
if not (expected_value_list == sorted(start_current_value)):
test.fail("Run successful but current "
"value is not expected.")
else:
if not status:
test.fail("Run successfully with wrong command. Output: {}"
.format(result.stdout_text.strip()))
if not re.search(expect_msg, result.stderr_text.strip()):
test.fail("Fail to get expect err msg! "
"Expected: {} Actual: {}"
.format(expect_msg, result.stderr_text.strip()))
finally:
orig_config_xml.sync()
def run(test, params, env):
"""
Test command: virsh iothread.
The command can change the number of iothread.
1.Prepare test environment,destroy or suspend a VM.
2.Perform virsh iothreadadd operation.
3.Recover test environment.
4.Confirm the test result.
"""
vm_name = params.get("main_vm")
vm = env.get_vm(vm_name)
pre_vm_state = params.get("iothread_pre_vm_state")
command = params.get("iothread_command", "iothreadadd")
options = params.get("iothread_options")
vm_ref = params.get("iothread_vm_ref", "name")
iothreads = params.get("iothreads", 4)
iothread_id = params.get("iothread_id", "6")
status_error = "yes" == params.get("status_error")
iothreadids = params.get("iothreadids")
iothreadpins = params.get("iothreadpins")
try:
iothreads = int(iothreads)
except ValueError:
# 'iothreads' may not invalid number in negative tests
logging.debug("Can't convert %s to integer type", iothreads)
# Save original configuration
vmxml = vm_xml.VMXML.new_from_inactive_dumpxml(vm_name)
orig_config_xml = vmxml.copy()
try:
if vm.is_alive():
vm.destroy()
option_list = options.split(" ")
for item in option_list:
if virsh.has_command_help_match(command, item) is None:
raise exceptions.TestSkipError("The current libvirt version"
" doesn't support '%s' option" %
item)
# Set iothreads first
if iothreadids:
ids_xml = vm_xml.VMIothreadidsXML()
ids_xml.iothread = iothreadids.split()
vmxml.iothreadids = ids_xml
if iothreadpins:
cputune_xml = vm_xml.VMCPUTuneXML()
io_pins = []
for pins in iothreadpins.split():
thread, cpuset = pins.split(':')
io_pins.append({"iothread": thread, "cpuset": cpuset})
cputune_xml.iothreadpins = io_pins
vmxml.cputune = cputune_xml
vmxml.iothreads = iothreads
logging.debug("Pre-test xml is %s", vmxml)
vmxml.sync()
# Restart, unless that's not our test
if not vm.is_alive():
vm.start()
vm.wait_for_login()
domid = vm.get_id() # only valid for running
domuuid = vm.get_uuid()
if pre_vm_state == "shut off" and vm.is_alive():
vm.destroy()
# Run test
if vm_ref == "name":
dom_option = vm_name
elif vm_ref == "id":
dom_option = domid
elif vm_ref == "uuid":
dom_option = domuuid
else:
dom_option = vm_ref
ret = virsh.iothreadadd(dom_option,
iothread_id,
options,
ignore_status=True,
debug=True)
libvirt.check_exit_status(ret, status_error)
if not status_error:
# Check domainxml
iothread_info = get_xmlinfo(vm_name, options)
logging.debug("iothreadinfo: %s", iothread_info)
if iothread_id not in iothread_info:
raise exceptions.TestFail(
"Failed to add iothread %s in domain xml", iothread_id)
# Check iothreadinfo by virsh command
iothread_info = libvirt.get_iothreadsinfo(dom_option, options)
logging.debug("iothreadinfo: %s", iothread_info)
if not iothread_info.has_key(iothread_id):
raise exceptions.TestFail("Failed to add iothread %s",
iothread_id)
finally:
# Cleanup
if vm.is_alive():
vm.destroy()
orig_config_xml.sync()
def run(test, params, env):
"""
Test command: virsh schedinfo.
This version provide base test of virsh schedinfo command:
virsh schedinfo <vm> [--set<set_ref>]
TODO: to support more parameters.
1) Get parameters and prepare vm's state
2) Prepare test options.
3) Run schedinfo command to set or get parameters.
4) Get schedinfo in cgroup
5) Recover environment like vm's state
6) Check result.
"""
def get_parameter_in_cgroup(vm, cgroup_type, parameter):
"""
Get vm's cgroup value.
:Param vm: the vm object
:Param cgroup_type: type of cgroup we want, vcpu or emulator.
:Param parameter: the cgroup parameter of vm which we need to get.
:return: False if expected controller is not mounted.
else return value's result object.
"""
cgroup_path = \
utils_cgroup.resolve_task_cgroup_path(vm.get_pid(), "cpu")
logging.debug("cgroup_path=%s", cgroup_path)
if not cgroup_type == "emulator":
# When a VM has an 'emulator' child cgroup present, we must
# strip off that suffix when detecting the cgroup for a machine
if os.path.basename(cgroup_path) == "emulator":
cgroup_path = os.path.dirname(cgroup_path)
if cgroup_type == 'iothread':
parameter = 'iothread1/%s' % parameter
if cgroup_type == 'vcpu' and parameter != 'cpu.shares':
parameter = 'vcpu0/%s' % parameter
if parameter == 'cpu.shares' and libvirt_version.version_compare(
7, 0, 0):
cgroup_path = os.path.dirname(cgroup_path)
logging.debug("cgroup_path is updated to '%s'", cgroup_path)
cgroup_file = os.path.join(cgroup_path, parameter)
logging.debug("cgroup_file=%s", cgroup_file)
cg_file = None
try:
try:
cg_file = open(cgroup_file)
result = cg_file.read()
except IOError:
test.error("Failed to open cgroup file %s" % cgroup_file)
finally:
if cg_file is not None:
cg_file.close()
return result.strip()
def schedinfo_output_analyse(result, set_ref, scheduler="posix"):
"""
Get the value of set_ref.
:param result: CmdResult struct
:param set_ref: the parameter has been set
:param scheduler: the scheduler of qemu(default is posix)
"""
output = result.stdout.strip()
if not re.search("Scheduler", output):
test.fail("Output is not standard:\n%s" % output)
result_lines = output.splitlines()
set_value_list = []
for set_ref_node in set_ref.split(","):
for line in result_lines:
key_value = line.split(":")
key = key_value[0].strip()
value = key_value[1].strip()
if key == "Scheduler":
if value != scheduler:
test.cancel("This test do not support"
" %s scheduler." % scheduler)
elif key == set_ref_node:
set_value_list.append(value)
break
return set_value_list
def get_current_value():
"""
Get the current schedinfo value and return
"""
current_result = virsh.schedinfo(vm_ref,
" --current",
ignore_status=True,
debug=True)
current_value = schedinfo_output_analyse(current_result, set_ref,
scheduler_value)
return current_value
# Prepare test options
vm_ref = params.get("schedinfo_vm_ref", "domname")
options_ref = params.get("schedinfo_options_ref", "")
options_suffix = params.get("schedinfo_options_suffix", "")
schedinfo_param = params.get("schedinfo_param", "vcpu")
set_ref = params.get("schedinfo_set_ref", "")
cgroup_ref = params.get("schedinfo_cgroup_ref", "cpu.shares")
set_value = params.get("schedinfo_set_value", "")
set_method = params.get("schedinfo_set_method", "cmd")
set_value_expected = params.get("schedinfo_set_value_expected", "")
# Libvirt version where function begins to change
libvirt_ver_function_changed = eval(
params.get("libvirt_ver_function_changed", '[]'))
# The default scheduler on qemu/kvm is posix
scheduler_value = "posix"
status_error = params.get("status_error", "no")
start_vm = ("yes" == params.get("start_vm"))
readonly = ("yes" == params.get("schedinfo_readonly", "no"))
expect_msg = params.get("schedinfo_err_msg", "")
if libvirt_ver_function_changed:
if not libvirt_version.version_compare(*libvirt_ver_function_changed):
set_value = params.get("schedinfo_set_value_bk")
set_value_expected = params.get("schedinfo_set_value_expected_bk")
# Prepare vm test environment
vm_name = params.get("main_vm")
# For safety reasons, we'd better back up xmlfile.
orig_config_xml = vm_xml.VMXML.new_from_inactive_dumpxml(vm_name)
if not orig_config_xml:
test.error("Backing up xmlfile failed.")
if set_ref == "none":
options_ref = "--set"
set_ref = None
elif set_ref:
# Prepare vm xml for iothread test
if schedinfo_param == 'iothread':
virsh.iothreadadd(vm_name, '1', ignore_status=False, debug=True)
if set_method == 'cmd':
if set_value:
set_ref_list = set_ref.split(",")
set_value_list = set_value.split(",")
for i in range(0, len(set_ref_list)):
if "--set" in options_ref:
options_ref += " %s=%s" % (set_ref_list[i],
set_value_list[i])
else:
options_ref = "--set %s=%s" % (set_ref_list[i],
set_value_list[i])
else:
options_ref = "--set %s" % set_ref
elif set_method == 'xml':
xml = vm_xml.VMXML.new_from_dumpxml(vm_name)
try:
cputune = xml.cputune
except xcepts.LibvirtXMLNotFoundError:
cputune = vm_xml.VMCPUTuneXML()
name_map = {
'cpu_shares': 'shares',
'vcpu_period': 'period',
'vcpu_quota': 'quota',
'emulator_period': 'emulator_period',
'emulator_quota': 'emulator_quota',
'global_period': 'global_period',
'global_quota': 'global_quota',
'iothread_period': 'iothread_period',
'iothread_quota': 'iothread_quota'
}
cputune[name_map[set_ref]] = int(set_value)
xml.cputune = cputune
xml.sync()
logging.debug("After setting xml, VM XML:\n%s",
vm_xml.VMXML.new_from_dumpxml(vm_name))
vm = env.get_vm(vm_name)
if vm.is_dead() and start_vm:
vm.start()
domid = vm.get_id()
domuuid = vm.get_uuid()
if vm_ref == "domid":
vm_ref = domid
elif vm_ref == "domname":
vm_ref = vm_name
elif vm_ref == "domuuid":
vm_ref = domuuid
elif vm_ref == "hex_id":
if domid == '-':
vm_ref = domid
else:
vm_ref = hex(int(domid))
options_ref += " %s " % options_suffix
# Get schedinfo with --current parameter
if set_ref and options_ref.count("config") and start_vm:
bef_current_value = get_current_value()
try:
# Run command
result = virsh.schedinfo(vm_ref,
options_ref,
ignore_status=True,
debug=True,
readonly=readonly)
status = result.exit_status
# VM must be running to get cgroup parameters.
if not vm.is_alive():
vm.start()
if options_ref.count("config") and start_vm:
# Get schedinfo with --current parameter
aft_current_value = get_current_value()
if bef_current_value != aft_current_value:
test.fail("--config change the current %s" % set_ref)
vm.destroy()
vm.start()
vm_ref = vm.get_id()
if set_ref:
start_current_value = get_current_value()
set_value_of_cgroup = get_parameter_in_cgroup(
vm, cgroup_type=schedinfo_param, parameter=cgroup_ref)
vm.destroy(gracefully=False)
if set_ref:
set_value_of_output = schedinfo_output_analyse(
result, set_ref, scheduler_value)
# Check result
if status_error == "no":
if status:
test.fail("Run failed with right command. Error: {}".format(
result.stderr.strip()))
else:
if set_ref and set_value_expected:
logging.info("value will be set:%s\n"
"set value in output:%s\n"
"set value in cgroup:%s\n"
"expected value:%s" %
(set_value, set_value_of_output,
set_value_of_cgroup, set_value_expected))
if set_value_of_output is None:
test.fail("Get parameter %s failed." % set_ref)
# Value in output of virsh schedinfo is not guaranteed 'correct'
# when we use --config.
# This is my attempt to fix it
# http://www.redhat.com/archives/libvir-list/2014-May/msg00466.html.
# But this patch did not go into upstream of libvirt.
# Libvirt just guarantee that the value is correct in next boot
# when we use --config. So skip checking of output in this case.
expected_value_list = sorted(set_value_expected.split(','))
if (not (expected_value_list
== sorted(set_value_of_output))
and not (options_ref.count("config"))):
test.fail("Run successful but value "
"in output is not expected.")
if len(set_value_expected.split(',')) == 1:
if not (set_value_expected == set_value_of_cgroup):
test.fail("Run successful but value "
"in cgroup is not expected.")
if not (expected_value_list
== sorted(start_current_value)):
test.fail("Run successful but current "
"value is not expected.")
else:
if not status:
test.fail(
"Run successfully with wrong command. Output: {}".format(
result.stdout.strip()))
if readonly:
if not re.search(expect_msg, result.stderr.strip()):
test.fail("Fail to get expect err msg! "
"Expected: {} Actual: {}".foramt(
expect_msg, result.stderr.strip()))
finally:
orig_config_xml.sync()