def test_networks():
"""
Start vm with VF from VF Pool with "managed=no" or default setting
1) Create VF pool
2) Prepare device xml and hot-plug to the guest
3) Detach the device from host
4) Check the driver of device
5) Start VM
6) Destroy vm then check the driver
7) Reattach the device to the host and check the driver
"""
create_vf_pool()
libvirt_vfio.check_vfio_pci(vf_pci, status_error=True)
iface_dict = {
"type": "network",
"source": "{'network': '%s'}" % params.get("net_name")
}
libvirt.modify_vm_iface(vm.name, "update_iface", iface_dict)
res = virsh.start(vm.name, debug=True)
libvirt.check_exit_status(res, True)
virsh.nodedev_detach(dev_name, debug=True, ignore_status=False)
libvirt_vfio.check_vfio_pci(vf_pci)
start_vm(vm, True, True)
libvirt_vfio.check_vfio_pci(vf_pci)
virsh.nodedev_reattach(dev_name, debug=True, ignore_status=False)
libvirt_vfio.check_vfio_pci(vf_pci, status_error=True)
def trigger_nodedev_event(nodedev_event_name, event_amount):
"""
:param event_amount: number of event loop times
Trigger nodedevice detach/reattach in event_number times
"""
event_list = []
if nodedev_event_name == 'lifecycle':
if event_amount == 1:
virsh.nodedev_detach(device_address)
event_list.append("Deleted")
if event_amount > 1:
if event_amount % 2 == 0:
while event_amount > 0:
virsh.nodedev_detach(device_address)
event_list.append("Deleted")
virsh.nodedev_reattach(device_address)
event_list.append("Created")
event_amount -= 2
if event_amount % 2 == 1:
event_amount -= 1
while event_amount > 0:
virsh.nodedev_detach(device_address)
event_list.append("Deleted")
virsh.nodedev_reattach(device_address)
event_list.append("Created")
event_amount -= 2
virsh.nodedev_detach(device_address)
event_list.append("Deleted")
return event_list
def trigger_nodedev_event(nodedev_event_name, event_amount):
"""
:param event_amount: number of event loop times
Trigger nodedevice detach/reattach in event_number times
"""
event_list = []
if nodedev_event_name == 'lifecycle':
if event_amount == 1:
virsh.nodedev_detach(device_address)
event_list.append("Deleted")
if event_amount > 1:
if event_amount % 2 == 0:
while event_amount > 0:
virsh.nodedev_detach(device_address)
event_list.append("Deleted")
virsh.nodedev_reattach(device_address)
event_list.append("Created")
time.sleep(2)
event_amount -= 2
if event_amount % 2 == 1:
event_amount -= 1
while event_amount > 0:
virsh.nodedev_detach(device_address)
event_list.append("Deleted")
virsh.nodedev_reattach(device_address)
event_list.append("Created")
time.sleep(2)
event_amount -= 2
virsh.nodedev_detach(device_address)
event_list.append("Deleted")
return event_list
def attach_interface():
"""
Attach interface:
1.Attach interface from xml;
2.Check the vf driver after attach interface;
3.Check the live xml after attach interface;
"""
if managed == "no":
result = virsh.nodedev_detach(nodedev_pci_addr)
utils_test.libvirt.check_exit_status(result, expect_error=False)
logging.debug("attach interface xml:\n %s", new_iface)
result = virsh.attach_device(vm_name,
file_opt=new_iface.xml,
flagstr=option,
debug=True)
utils_test.libvirt.check_exit_status(result, expect_error=False)
if option == "--config":
result = virsh.start(vm_name)
utils_test.libvirt.check_exit_status(result, expect_error=False)
# For option == "--persistent", after VM destroyed and then start, the device should still be there.
if option == "--persistent":
virsh.destroy(vm_name)
result = virsh.start(vm_name, debug=True)
utils_test.libvirt.check_exit_status(result, expect_error=False)
live_xml = vm_xml.VMXML.new_from_dumpxml(vm_name)
logging.debug(live_xml)
get_ip_by_mac(mac_addr, timeout=60)
device = live_xml.devices
if vf_type == "vf" or vf_type == "vf_pool":
for interface in device.by_device_tag("interface"):
if interface.type_name == "hostdev":
if interface.driver.driver_attr['name'] != 'vfio':
test.fail(
"The driver of the hostdev interface is not vfio\n"
)
break
vf_addr_attrs = interface.hostdev_address.attrs
pci_addr = addr_to_pci(vf_addr_attrs)
nic_driver = os.readlink(
os.path.join(pci_device_dir, vf_addr, "driver")).split('/')[-1]
if nic_driver != "vfio-pci":
test.fail("The driver of the hostdev interface is not vfio\n")
elif vf_type == "macvtap" or vf_type == "macvtap_network":
for interface in device.by_device_tag("interface"):
if interface.type_name == "direct":
if vf_type == "macvtap":
if interface.source["dev"] == new_iface.source["dev"]:
match = "yes"
vf_name = interface.source["dev"]
elif interface.source['dev'] in vf_name_list:
match = "yes"
vf_name = interface.source["dev"]
if match != "yes":
test.fail(
"The dev name or mode of macvtap interface is wrong after attach\n"
)
return interface
def detach_reattach_nodedev(device_address, params, options=""):
"""
Do the detach and reattach.
Step1.Do detach.
Step2.Check the result of detach.
Step3.Do reattach.
Step4.Check the result of reattach
"""
# Libvirt acl polkit related params
uri = params.get("virsh_uri")
# Nodedev-detach/reattach are special, the connect driver is still qemu
# with split daemon, and the connect_driver in polkit rule
# should be 'QEMU' for detach, 'nodedev' for read. update the polkit
# rule to include both QEMU and nodedev in such situation.
set_polkit = 'yes' == params.get('setup_libvirt_polkit', 'no')
if utils_split_daemons.is_modular_daemon() and set_polkit:
rule_path = '/etc/polkit-1/rules.d/500-libvirt-acl-virttest.rules'
cmd = '''sed -i "s/'nodedev'/'nodedev'||'QEMU'/g" %s''' % rule_path
process.run(cmd)
process.run('cat /etc/polkit-1/rules.d/500-libvirt-acl-virttest.rules')
unprivileged_user = params.get('unprivileged_user')
readonly = (params.get('nodedev_detach_readonly', 'no') == 'yes')
if unprivileged_user:
if unprivileged_user.count('EXAMPLE'):
unprivileged_user = '******'
# Do the detach
logging.debug('Node device name is %s.', device_address)
CmdResult = virsh.nodedev_detach(device_address, options,
unprivileged_user=unprivileged_user,
uri=uri, readonly=readonly, debug=True)
# Check the exit_status.
libvirt.check_exit_status(CmdResult)
# Check the driver.
driver = get_driver_readlink(device_address)
logging.debug('Driver after detach is %s.', driver)
if libvirt_version.version_compare(1, 1, 1):
device_driver_name = 'vfio-pci'
else:
device_driver_name = 'pci-stub'
if (driver is None) or (not driver.endswith(device_driver_name)):
test.fail("Driver for %s is not %s "
"after nodedev-detach" % (device_address, device_driver_name))
# Do the reattach.
CmdResult = virsh.nodedev_reattach(device_address, options)
# Check the exit_status.
libvirt.check_exit_status(CmdResult)
# Check the driver.
driver = get_driver_readlink(device_address)
if libvirt_version.version_compare(1, 1, 1):
device_driver_name = 'vfio-pci'
else:
device_driver_name = 'pci-stub'
if driver and driver.endswith(device_driver_name):
test.fail("Driver for %s is not %s "
"after nodedev-detach" % (device_address, device_driver_name))
def test_device_hotplug():
"""
Hotplug/unplug VF with managed='no'
1) Prepare a running guest
2) Check the driver of vf on host
3) Prepare a xml with "managed=no"and attach to guest
4) Detach the device from host
5) Check the driver of vf on host
6) Attach the device to guest
7) Check the interface of the guest
8) Detach the device from guest and check the driver
9) Reattach the device to the host and check the driver
"""
libvirt_vmxml.remove_vm_devices_by_type(vm, 'interface')
start_vm(vm)
libvirt_vfio.check_vfio_pci(vf_pci, status_error=True)
mac_addr = utils_net.generate_mac_address_simple()
iface_dict = eval(
params.get('iface_dict', '{"hostdev_addr": "%s"}') %
utils_sriov.pci_to_addr(vf_pci))
iface = interface.Interface("hostdev")
iface.xml = libvirt.modify_vm_iface(vm.name, "get_xml", iface_dict)
res = virsh.attach_device(vm_name, iface.xml, debug=True)
libvirt.check_exit_status(res, True)
virsh.nodedev_detach(dev_name, debug=True, ignore_status=False)
libvirt_vfio.check_vfio_pci(vf_pci)
virsh.attach_device(vm_name,
iface.xml,
debug=True,
ignore_status=False)
check_vm_iface_managed(vm_name, iface_dict)
vm.wait_for_serial_login().close()
virsh.detach_device(vm_name,
iface.xml,
wait_remove_event=True,
debug=True,
ignore_status=False)
libvirt_vfio.check_vfio_pci(vf_pci)
virsh.nodedev_reattach(dev_name, debug=True, ignore_status=False)
libvirt_vfio.check_vfio_pci(vf_pci, status_error=True)
def detach_reattach_nodedev(device_address, params, options=""):
"""
Do the detach and reattach.
Step1.Do detach.
Step2.Check the result of detach.
Step3.Do reattach.
Step4.Check the result of reattach
"""
# Libvirt acl polkit related params
uri = params.get("virsh_uri")
if uri and not utils_split_daemons.is_modular_daemon():
uri = "qemu:///system"
unprivileged_user = params.get('unprivileged_user')
readonly = (params.get('nodedev_detach_readonly', 'no') == 'yes')
if unprivileged_user:
if unprivileged_user.count('EXAMPLE'):
unprivileged_user = '******'
# Do the detach
logging.debug('Node device name is %s.', device_address)
CmdResult = virsh.nodedev_detach(device_address,
options,
unprivileged_user=unprivileged_user,
uri=uri,
readonly=readonly)
# Check the exit_status.
libvirt.check_exit_status(CmdResult)
# Check the driver.
driver = get_driver_readlink(device_address)
logging.debug('Driver after detach is %s.', driver)
if libvirt_version.version_compare(1, 1, 1):
device_driver_name = 'vfio-pci'
else:
device_driver_name = 'pci-stub'
if (driver is None) or (not driver.endswith(device_driver_name)):
test.fail("Driver for %s is not %s "
"after nodedev-detach" %
(device_address, device_driver_name))
# Do the reattach.
CmdResult = virsh.nodedev_reattach(device_address, options)
# Check the exit_status.
libvirt.check_exit_status(CmdResult)
# Check the driver.
driver = get_driver_readlink(device_address)
if libvirt_version.version_compare(1, 1, 1):
device_driver_name = 'vfio-pci'
else:
device_driver_name = 'pci-stub'
if driver and driver.endswith(device_driver_name):
test.fail("Driver for %s is not %s "
"after nodedev-detach" %
(device_address, device_driver_name))
def nodedev_test(dev_name, status_error=False):
"""
Execute virsh nodedev-* commands
:param dev_name: Name of a device(eg. pci_0000_05_00_1)
:param status_error: Whether the command should be failed
"""
res = virsh.nodedev_reset(dev_name, debug=True)
libvirt.check_exit_status(res, status_error)
res = virsh.nodedev_detach(dev_name, debug=True)
libvirt.check_exit_status(res, status_error)
res = virsh.nodedev_reattach(dev_name, debug=True)
libvirt.check_exit_status(res, status_error)
def do_nodedev_detach_reattach(device_name, params, options=""):
"""
do the detach and reattach.
(1).do detach.
(2).check the result of detach.
(3).do reattach.
(4).check the result of reattach
"""
# libvirt acl polkit related params
uri = params.get("virsh_uri")
unprivileged_user = params.get('unprivileged_user')
if unprivileged_user:
if unprivileged_user.count('EXAMPLE'):
unprivileged_user = '******'
# do the detach
logging.debug('Node device name is %s.', device_name)
CmdResult = virsh.nodedev_detach(device_name, options,
unprivileged_user=unprivileged_user,
uri=uri)
# check the exit_status.
if CmdResult.exit_status:
raise error.TestFail("Failed to detach %s.\n"
"Detail: %s."
% (device_name, CmdResult.stderr))
# check the driver.
driver = driver_readlink(device_name)
logging.debug('Driver after detach is %s.', driver)
if (driver is None) or (not driver.endswith('pci-stub')):
raise error.TestFail("Driver for %s is not pci-stub "
"after nodedev-detach" % (device_name))
else:
pass
logging.debug('Nodedev-detach %s successed.', device_name)
# do the reattach.
CmdResult = virsh.nodedev_reattach(device_name, options)
# check the exit_status.
if CmdResult.exit_status:
raise error.TestFail("Failed to reattach %s.\n"
"Detail: %s."
% (device_name, CmdResult.stderr))
# check the driver.
driver = driver_readlink(device_name)
if (driver is None) or (not driver.endswith('pci-stub')):
pass
else:
raise error.TestFail("Driver for %s is not be reset after "
"nodedev-reattach" % (device_name))
logging.debug('Nodedev-reattach %s successed.', device_name)
def attach_interface():
"""
Attach interface:
1.Attach interface from xml;
2.Check the vf driver after attach interface;
3.Check the live xml after attach interface;
"""
if managed == "no":
result = virsh.nodedev_detach(nodedev_pci_addr)
utils_test.libvirt.check_exit_status(result, expect_error=False)
logging.debug("attach interface xml:\n %s", new_iface)
result = virsh.attach_device(vm_name, file_opt=new_iface.xml, flagstr=option, debug=True)
utils_test.libvirt.check_exit_status(result, expect_error=False)
if option == "--config":
result = virsh.start(vm_name)
utils_test.libvirt.check_exit_status(result, expect_error=False)
# For option == "--persistent", after VM destroyed and then start, the device should still be there.
if option == "--persistent":
virsh.destroy(vm_name)
result = virsh.start(vm_name, debug=True)
utils_test.libvirt.check_exit_status(result, expect_error=False)
live_xml = vm_xml.VMXML.new_from_dumpxml(vm_name)
logging.debug(live_xml)
get_ip_by_mac(mac_addr, timeout=60)
device = live_xml.devices
if vf_type == "vf" or vf_type == "vf_pool":
for interface in device.by_device_tag("interface"):
if interface.type_name == "hostdev":
if interface.driver.driver_attr['name'] != 'vfio':
test.fail("The driver of the hostdev interface is not vfio\n")
break
vf_addr_attrs = interface.hostdev_address.attrs
pci_addr = addr_to_pci(vf_addr_attrs)
nic_driver = os.readlink(os.path.join(pci_device_dir, vf_addr, "driver")).split('/')[-1]
if nic_driver != "vfio-pci":
test.fail("The driver of the hostdev interface is not vfio\n")
elif vf_type == "macvtap" or vf_type == "macvtap_network":
for interface in device.by_device_tag("interface"):
if interface.type_name == "direct":
if vf_type == "macvtap":
if interface.source["dev"] == new_iface.source["dev"]:
match = "yes"
vf_name = interface.source["dev"]
elif interface.source['dev'] in vf_name_list:
match = "yes"
vf_name = interface.source["dev"]
if match != "yes":
test.fail("The dev name or mode of macvtap interface is wrong after attach\n")
return interface
def do_nodedev_detach_reattach(device_name, params, options=""):
"""
do the detach and reattach.
(1).do detach.
(2).check the result of detach.
(3).do reattach.
(4).check the result of reattach
"""
# libvirt acl polkit related params
uri = params.get("virsh_uri")
unprivileged_user = params.get('unprivileged_user')
if unprivileged_user:
if unprivileged_user.count('EXAMPLE'):
unprivileged_user = '******'
# do the detach
logging.debug('Node device name is %s.', device_name)
CmdResult = virsh.nodedev_detach(device_name,
options,
unprivileged_user=unprivileged_user,
uri=uri)
# check the exit_status.
if CmdResult.exit_status:
raise error.TestFail("Failed to detach %s.\n"
"Detail: %s." % (device_name, CmdResult.stderr))
# check the driver.
driver = driver_readlink(device_name)
logging.debug('Driver after detach is %s.', driver)
if (driver is None) or (not driver.endswith('pci-stub')):
raise error.TestFail("Driver for %s is not pci-stub "
"after nodedev-detach" % (device_name))
else:
pass
logging.debug('Nodedev-detach %s successed.', device_name)
# do the reattach.
CmdResult = virsh.nodedev_reattach(device_name, options)
# check the exit_status.
if CmdResult.exit_status:
raise error.TestFail("Failed to reattach %s.\n"
"Detail: %s." % (device_name, CmdResult.stderr))
# check the driver.
driver = driver_readlink(device_name)
if (driver is None) or (not driver.endswith('pci-stub')):
pass
else:
raise error.TestFail("Driver for %s is not be reset after "
"nodedev-reattach" % (device_name))
logging.debug('Nodedev-reattach %s successed.', device_name)
def detach_device(pci_devs, pci_ids):
# detaching the device from host
for pci_value, pci_node in map(None, pci_devs, pci_ids):
pci_value = pci_value.replace(".", "_")
cmd = "lspci -ks %s | grep 'Kernel driver in use' |\
awk '{print $5}'" % pci_node
driver_name = to_text(process.system_output(cmd, shell=True).strip())
if driver_name == "vfio-pci":
logging.debug("device alreay detached")
else:
if virsh.nodedev_detach(pci_value).exit_status:
test.error("Hostdev node detach failed")
driver_name = to_text(process.system_output(cmd, shell=True).strip())
if driver_name != "vfio-pci":
test.error("driver bind failed after detach")
def detach_device(pci_devs, pci_ids):
# detaching the device from host
for pci_value, pci_node in map(None, pci_devs, pci_ids):
pci_value = pci_value.replace(".", "_")
cmd = "lspci -ks %s | grep 'Kernel driver in use' |\
awk '{print $5}'" % pci_node
driver_name = process.run(cmd, shell=True).stdout_text.strip()
if driver_name == "vfio-pci":
logging.debug("device alreay detached")
else:
if virsh.nodedev_detach(pci_value).exit_status:
test.error("Hostdev node detach failed")
driver_name = process.run(cmd, shell=True).stdout_text.strip()
if driver_name != "vfio-pci":
test.error("driver bind failed after detach")
def detach_reattach_nodedev(device_address, params, options=""):
"""
Do the detach and reattach.
Step1.Do detach.
Step2.Check the result of detach.
Step3.Do reattach.
Step4.Check the result of reattach
"""
# Libvirt acl polkit related params
uri = params.get("virsh_uri")
unprivileged_user = params.get('unprivileged_user')
readonly = (params.get('nodedev_detach_readonly', 'no') == 'yes')
if unprivileged_user:
if unprivileged_user.count('EXAMPLE'):
unprivileged_user = '******'
# Do the detach
logging.debug('Node device name is %s.', device_address)
CmdResult = virsh.nodedev_detach(device_address, options,
unprivileged_user=unprivileged_user,
uri=uri, readonly=readonly)
# Check the exit_status.
libvirt.check_exit_status(CmdResult)
# Check the driver.
driver = get_driver_readlink(device_address)
logging.debug('Driver after detach is %s.', driver)
if libvirt_version.version_compare(1, 1, 1):
device_driver_name = 'vfio-pci'
else:
device_driver_name = 'pci-stub'
if (driver is None) or (not driver.endswith(device_driver_name)):
test.fail("Driver for %s is not %s "
"after nodedev-detach" % (device_address, device_driver_name))
# Do the reattach.
CmdResult = virsh.nodedev_reattach(device_address, options)
# Check the exit_status.
libvirt.check_exit_status(CmdResult)
# Check the driver.
driver = get_driver_readlink(device_address)
if libvirt_version.version_compare(1, 1, 1):
device_driver_name = 'vfio-pci'
else:
device_driver_name = 'pci-stub'
if driver and driver.endswith(device_driver_name):
test.fail("Driver for %s is not %s "
"after nodedev-detach" % (device_address, device_driver_name))
def do_nodedev_detach_reattach(device_name, options=""):
"""
do the detach and reattach.
(1).do detach.
(2).check the result of detach.
(3).do reattach.
(4).check the result of reattach
"""
# do the detach
logging.debug('Node device name is %s.', device_name)
CmdResult = virsh.nodedev_detach(device_name, options)
# check the exit_status.
if CmdResult.exit_status:
raise error.TestFail("Failed to detach %s.\n"
"Detail: %s."
% (device_name, CmdResult.stderr))
# check the driver.
driver = driver_readlink(device_name)
logging.debug('Driver after detach is %s.', driver)
if (driver is None) or (not driver.endswith('pci-stub')):
raise error.TestFail("Driver for %s is not pci-stub "
"after nodedev-detach" % (device_name))
else:
pass
logging.debug('Nodedev-detach %s successed.', device_name)
# do the reattach.
CmdResult = virsh.nodedev_reattach(device_name, options)
# check the exit_status.
if CmdResult.exit_status:
raise error.TestFail("Failed to reattach %s.\n"
"Detail: %s."
% (device_name, CmdResult.stderr))
# check the driver.
driver = driver_readlink(device_name)
if (driver is None) or (not driver.endswith('pci-stub')):
pass
else:
raise error.TestFail("Driver for %s is not be reset after "
"nodedev-reattach" % (device_name))
logging.debug('Nodedev-reattach %s successed.', device_name)
def do_nodedev_detach_reattach(device_name, options=""):
"""
do the detach and reattach.
(1).do detach.
(2).check the result of detach.
(3).do reattach.
(4).check the result of reattach
"""
# do the detach
logging.debug('Node device name is %s.', device_name)
CmdResult = virsh.nodedev_detach(device_name, options)
# check the exit_status.
if CmdResult.exit_status:
raise error.TestFail("Failed to detach %s.\n"
"Detail: %s."
% (device_name, CmdResult.stderr))
# check the driver.
driver = driver_readlink(device_name)
logging.debug('Driver after detach is %s.', driver)
if (driver is None) or (not driver.endswith('pci-stub')):
raise error.TestFail("Driver for %s is not pci-stub "
"after nodedev-detach" % (device_name))
else:
pass
logging.debug('Nodedev-detach %s successed.', device_name)
# do the reattach.
CmdResult = virsh.nodedev_reattach(device_name, options)
# check the exit_status.
if CmdResult.exit_status:
raise error.TestFail("Failed to reattach %s.\n"
"Detail: %s."
% (device_name, CmdResult.stderr))
# check the driver.
driver = driver_readlink(device_name)
if (driver is None) or (not driver.endswith('pci-stub')):
pass
else:
raise error.TestFail("Driver for %s is not be reset after "
"nodedev-reattach" % (device_name))
logging.debug('Nodedev-reattach %s successed.', device_name)
def test_active_nodedev_reset(device, vm, expect_succeed):
"""
Test nodedev-reset when the specified device is attached to a VM
:param devices : Specified node device to be tested.
:param vm : VM the device is to be attached to.
:param expect_succeed : 'yes' for expect command run successfully
and 'no' for fail.
:raise TestFail : If result doesn't meet expectation.
:raise TestError : If failed to recover environment.
"""
# Split device name such as `pci_0000_00_19_0` and fill the XML.
hostdev_xml = """
<hostdev mode='subsystem' type='%s' managed='yes'>
<source>
<address domain='0x%s' bus='0x%s' slot='0x%s' function='0x%s'/>
</source>
</hostdev>""" % tuple(device.split('_'))
try:
# The device need to be detached before attach to VM.
virsh.nodedev_detach(device)
try:
# Backup VM XML.
vmxml = VMXML.new_from_inactive_dumpxml(vm.name)
# Generate a temp file to store host device XML.
dev_fd, dev_fname = tempfile.mkstemp(dir=data_dir.get_tmp_dir())
os.close(dev_fd)
dev_file = open(dev_fname, 'w')
dev_file.write(hostdev_xml)
dev_file.close()
# Only live VM allows attach device.
if not vm.is_alive():
vm.start()
try:
result = virsh.attach_device(vm.name, dev_fname)
logging.debug(result)
test_nodedev_reset([device], expect_succeed)
finally:
# Detach device from VM.
result = virsh.detach_device(vm.name, dev_fname)
# Raise error when detach failed.
if result.exit_status:
raise error.TestError(
'Failed to dettach device %s from %s. Result:\n %s'
% (device, vm.name, result))
finally:
# Cleanup temp XML file and recover test VM.
os.remove(dev_fname)
vmxml.sync()
finally:
# Reattach node device
result = virsh.nodedev_reattach(device)
# Raise error when reattach failed.
if result.exit_status:
raise error.TestError(
'Failed to reattach nodedev %s. Result:\n %s'
% (device, result))
def test_active_nodedev_reset(device, vm, expect_succeed):
"""
Test nodedev-reset when the specified device is attached to a VM
:param devices : Specified node device to be tested.
:param vm : VM the device is to be attached to.
:param expect_succeed : 'yes' for expect command run successfully
and 'no' for fail.
:raise TestFail : If result doesn't meet expectation.
:raise TestError : If failed to recover environment.
"""
# Split device name such as `pci_0000_00_19_0` and fill the XML.
hostdev_xml = """
<hostdev mode='subsystem' type='%s' managed='yes'>
<source>
<address domain='0x%s' bus='0x%s' slot='0x%s' function='0x%s'/>
</source>
</hostdev>""" % tuple(device.split('_'))
try:
# The device need to be detached before attach to VM.
virsh.nodedev_detach(device)
try:
# Backup VM XML.
vmxml = VMXML.new_from_inactive_dumpxml(vm.name)
# Generate a temp file to store host device XML.
dev_fd, dev_fname = tempfile.mkstemp(dir=data_dir.get_tmp_dir())
os.close(dev_fd)
dev_file = open(dev_fname, 'w')
dev_file.write(hostdev_xml)
dev_file.close()
# Only live VM allows attach device.
if not vm.is_alive():
vm.start()
try:
result = virsh.attach_device(vm.name, dev_fname)
logging.debug(result)
test_nodedev_reset([device], expect_succeed)
finally:
# Detach device from VM.
result = virsh.detach_device(vm.name, dev_fname)
# Raise error when detach failed.
if result.exit_status:
raise error.TestError(
'Failed to dettach device %s from %s. Result:\n %s' %
(device, vm.name, result))
finally:
# Cleanup temp XML file and recover test VM.
os.remove(dev_fname)
vmxml.sync()
finally:
# Reattach node device
result = virsh.nodedev_reattach(device)
# Raise error when reattach failed.
if result.exit_status:
raise error.TestError(
'Failed to reattach nodedev %s. Result:\n %s' %
(device, result))
def run(test, params, env):
"""
Test when the PCI configuration file is in read-only mode
"""
def test_vf_hotplug():
"""
Hot-plug VF to VM
"""
logging.info("Preparing a running guest...")
libvirt_vmxml.remove_vm_devices_by_type(vm, 'interface')
vm.start()
vm_session = vm.wait_for_serial_login(timeout=180)
logging.info("Attaching VF to the guest...")
mac_addr = utils_net.generate_mac_address_simple()
iface_dict = eval(
params.get('iface_dict', '{"hostdev_addr": "%s"}') %
utils_sriov.pci_to_addr(vf_pci))
iface = interface.Interface("hostdev")
iface.xml = libvirt.modify_vm_iface(vm.name, "get_xml", iface_dict)
virsh.attach_device(vm_name,
iface.xml,
debug=True,
ignore_status=False)
logging.info("Checking VF in the guest...")
vm_iface_types = [
iface.get_type_name() for iface in vm_xml.VMXML.new_from_dumpxml(
vm_name).devices.by_device_tag("interface")
]
if 'hostdev' not in vm_iface_types:
test.fail('Unable to get hostdev interface!')
if cmd_in_vm:
if not utils_misc.wait_for(
lambda: not vm_session.cmd_status(cmd_in_vm), 30, 10):
test.fail("Can not get the Virtual Function info on vm!")
vm_session.close()
libvirt_version.is_libvirt_feature_supported(params)
test_case = params.get("test_case", "")
run_test = eval("test_%s" % test_case)
cmd_in_vm = params.get("cmd_in_vm")
vm_name = params.get("main_vm", "avocado-vt-vm1")
vm = env.get_vm(vm_name)
pf_pci = utils_sriov.get_pf_pci()
if not pf_pci:
test.cancel("NO available pf found.")
default_vf = sriov_base.setup_vf(pf_pci, params)
vf_pci = utils_sriov.get_vf_pci_id(pf_pci)
dev_name = utils_sriov.get_device_name(vf_pci)
vmxml = vm_xml.VMXML.new_from_inactive_dumpxml(vm_name)
orig_config_xml = vmxml.copy()
libvirtd = utils_libvirtd.Libvirtd('virtqemud')
try:
virsh.nodedev_detach(dev_name, debug=True, ignore_status=False)
logging.info("Re-mounting sysfs with ro mode...")
utils_misc.mount('/sys', '', None, 'remount,ro')
libvirtd.restart()
run_test()
finally:
logging.info("Recover test enviroment.")
utils_misc.mount('/sys', '', None, 'remount,rw')
sriov_base.recover_vf(pf_pci, params, default_vf)
if vm.is_alive():
vm.destroy(gracefully=False)
orig_config_xml.sync()
virsh.nodedev_reattach(dev_name, debug=True)