nova/nova/tests/unit/virt/libvirt/fakelibvirt.py

1203 lines
34 KiB
Python

# Copyright 2010 OpenStack Foundation
#
# 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.
import time
import uuid
import fixtures
from lxml import etree
import mock
from nova.compute import arch
# Allow passing None to the various connect methods
# (i.e. allow the client to rely on default URLs)
allow_default_uri_connection = True
# string indicating the CPU arch
node_arch = arch.X86_64 # or 'i686' (or whatever else uname -m might return)
# memory size in kilobytes
node_kB_mem = 4096
# the number of active CPUs
node_cpus = 2
# expected CPU frequency
node_mhz = 800
# the number of NUMA cell, 1 for unusual NUMA topologies or uniform
# memory access; check capabilities XML for the actual NUMA topology
node_nodes = 1 # NUMA nodes
# number of CPU sockets per node if nodes > 1, total number of CPU
# sockets otherwise
node_sockets = 1
# number of cores per socket
node_cores = 2
# number of threads per core
node_threads = 1
# CPU model
node_cpu_model = "Penryn"
# CPU vendor
node_cpu_vendor = "Intel"
# Has libvirt connection been used at least once
connection_used = False
def _reset():
global allow_default_uri_connection
allow_default_uri_connection = True
# virDomainState
VIR_DOMAIN_NOSTATE = 0
VIR_DOMAIN_RUNNING = 1
VIR_DOMAIN_BLOCKED = 2
VIR_DOMAIN_PAUSED = 3
VIR_DOMAIN_SHUTDOWN = 4
VIR_DOMAIN_SHUTOFF = 5
VIR_DOMAIN_CRASHED = 6
VIR_DOMAIN_XML_SECURE = 1
VIR_DOMAIN_XML_INACTIVE = 2
VIR_DOMAIN_BLOCK_REBASE_SHALLOW = 1
VIR_DOMAIN_BLOCK_REBASE_REUSE_EXT = 2
VIR_DOMAIN_BLOCK_REBASE_COPY = 8
VIR_DOMAIN_BLOCK_JOB_ABORT_PIVOT = 2
VIR_DOMAIN_EVENT_ID_LIFECYCLE = 0
VIR_DOMAIN_EVENT_DEFINED = 0
VIR_DOMAIN_EVENT_UNDEFINED = 1
VIR_DOMAIN_EVENT_STARTED = 2
VIR_DOMAIN_EVENT_SUSPENDED = 3
VIR_DOMAIN_EVENT_RESUMED = 4
VIR_DOMAIN_EVENT_STOPPED = 5
VIR_DOMAIN_EVENT_SHUTDOWN = 6
VIR_DOMAIN_EVENT_PMSUSPENDED = 7
VIR_DOMAIN_UNDEFINE_MANAGED_SAVE = 1
VIR_DOMAIN_AFFECT_CURRENT = 0
VIR_DOMAIN_AFFECT_LIVE = 1
VIR_DOMAIN_AFFECT_CONFIG = 2
VIR_CPU_COMPARE_ERROR = -1
VIR_CPU_COMPARE_INCOMPATIBLE = 0
VIR_CPU_COMPARE_IDENTICAL = 1
VIR_CPU_COMPARE_SUPERSET = 2
VIR_CRED_USERNAME = 1
VIR_CRED_AUTHNAME = 2
VIR_CRED_LANGUAGE = 3
VIR_CRED_CNONCE = 4
VIR_CRED_PASSPHRASE = 5
VIR_CRED_ECHOPROMPT = 6
VIR_CRED_NOECHOPROMPT = 7
VIR_CRED_REALM = 8
VIR_CRED_EXTERNAL = 9
VIR_MIGRATE_LIVE = 1
VIR_MIGRATE_PEER2PEER = 2
VIR_MIGRATE_TUNNELLED = 4
VIR_MIGRATE_UNDEFINE_SOURCE = 16
VIR_MIGRATE_NON_SHARED_INC = 128
VIR_NODE_CPU_STATS_ALL_CPUS = -1
VIR_DOMAIN_START_PAUSED = 1
# libvirtError enums
# (Intentionally different from what's in libvirt. We do this to check,
# that consumers of the library are using the symbolic names rather than
# hardcoding the numerical values)
VIR_FROM_QEMU = 100
VIR_FROM_DOMAIN = 200
VIR_FROM_NWFILTER = 330
VIR_FROM_REMOTE = 340
VIR_FROM_RPC = 345
VIR_FROM_NODEDEV = 666
VIR_ERR_NO_SUPPORT = 3
VIR_ERR_XML_DETAIL = 350
VIR_ERR_NO_DOMAIN = 420
VIR_ERR_OPERATION_INVALID = 55
VIR_ERR_OPERATION_TIMEOUT = 68
VIR_ERR_NO_NWFILTER = 620
VIR_ERR_SYSTEM_ERROR = 900
VIR_ERR_INTERNAL_ERROR = 950
VIR_ERR_CONFIG_UNSUPPORTED = 951
VIR_ERR_NO_NODE_DEVICE = 667
VIR_ERR_NO_SECRET = 66
# Readonly
VIR_CONNECT_RO = 1
# virConnectBaselineCPU flags
VIR_CONNECT_BASELINE_CPU_EXPAND_FEATURES = 1
# snapshotCreateXML flags
VIR_DOMAIN_SNAPSHOT_CREATE_NO_METADATA = 4
VIR_DOMAIN_SNAPSHOT_CREATE_DISK_ONLY = 16
VIR_DOMAIN_SNAPSHOT_CREATE_REUSE_EXT = 32
VIR_DOMAIN_SNAPSHOT_CREATE_QUIESCE = 64
# blockCommit flags
VIR_DOMAIN_BLOCK_COMMIT_RELATIVE = 4
VIR_CONNECT_LIST_DOMAINS_ACTIVE = 1
VIR_CONNECT_LIST_DOMAINS_INACTIVE = 2
# secret type
VIR_SECRET_USAGE_TYPE_NONE = 0
VIR_SECRET_USAGE_TYPE_VOLUME = 1
VIR_SECRET_USAGE_TYPE_CEPH = 2
VIR_SECRET_USAGE_TYPE_ISCSI = 3
def _parse_disk_info(element):
disk_info = {}
disk_info['type'] = element.get('type', 'file')
disk_info['device'] = element.get('device', 'disk')
driver = element.find('./driver')
if driver is not None:
disk_info['driver_name'] = driver.get('name')
disk_info['driver_type'] = driver.get('type')
source = element.find('./source')
if source is not None:
disk_info['source'] = source.get('file')
if not disk_info['source']:
disk_info['source'] = source.get('dev')
if not disk_info['source']:
disk_info['source'] = source.get('path')
target = element.find('./target')
if target is not None:
disk_info['target_dev'] = target.get('dev')
disk_info['target_bus'] = target.get('bus')
return disk_info
class libvirtError(Exception):
"""This class was copied and slightly modified from
`libvirt-python:libvirt-override.py`.
Since a test environment will use the real `libvirt-python` version of
`libvirtError` if it's installed and not this fake, we need to maintain
strict compatibility with the original class, including `__init__` args
and instance-attributes.
To create a libvirtError instance you should:
# Create an unsupported error exception
exc = libvirtError('my message')
exc.err = (libvirt.VIR_ERR_NO_SUPPORT,)
self.err is a tuple of form:
(error_code, error_domain, error_message, error_level, str1, str2,
str3, int1, int2)
Alternatively, you can use the `make_libvirtError` convenience function to
allow you to specify these attributes in one shot.
"""
def __init__(self, defmsg, conn=None, dom=None, net=None, pool=None,
vol=None):
Exception.__init__(self, defmsg)
self.err = None
def get_error_code(self):
if self.err is None:
return None
return self.err[0]
def get_error_domain(self):
if self.err is None:
return None
return self.err[1]
def get_error_message(self):
if self.err is None:
return None
return self.err[2]
def get_error_level(self):
if self.err is None:
return None
return self.err[3]
def get_str1(self):
if self.err is None:
return None
return self.err[4]
def get_str2(self):
if self.err is None:
return None
return self.err[5]
def get_str3(self):
if self.err is None:
return None
return self.err[6]
def get_int1(self):
if self.err is None:
return None
return self.err[7]
def get_int2(self):
if self.err is None:
return None
return self.err[8]
class NWFilter(object):
def __init__(self, connection, xml):
self._connection = connection
self._xml = xml
self._parse_xml(xml)
def _parse_xml(self, xml):
tree = etree.fromstring(xml)
root = tree.find('.')
self._name = root.get('name')
def undefine(self):
self._connection._remove_filter(self)
class NodeDevice(object):
def __init__(self, connection, xml=None):
self._connection = connection
self._xml = xml
if xml is not None:
self._parse_xml(xml)
def _parse_xml(self, xml):
tree = etree.fromstring(xml)
root = tree.find('.')
self._name = root.get('name')
def attach(self):
pass
def dettach(self):
pass
def reset(self):
pass
class Domain(object):
def __init__(self, connection, xml, running=False, transient=False):
self._connection = connection
if running:
connection._mark_running(self)
self._state = running and VIR_DOMAIN_RUNNING or VIR_DOMAIN_SHUTOFF
self._transient = transient
self._def = self._parse_definition(xml)
self._has_saved_state = False
self._snapshots = {}
self._id = self._connection._id_counter
def _parse_definition(self, xml):
try:
tree = etree.fromstring(xml)
except etree.ParseError:
raise make_libvirtError(
libvirtError, "Invalid XML.",
error_code=VIR_ERR_XML_DETAIL,
error_domain=VIR_FROM_DOMAIN)
definition = {}
name = tree.find('./name')
if name is not None:
definition['name'] = name.text
uuid_elem = tree.find('./uuid')
if uuid_elem is not None:
definition['uuid'] = uuid_elem.text
else:
definition['uuid'] = str(uuid.uuid4())
vcpu = tree.find('./vcpu')
if vcpu is not None:
definition['vcpu'] = int(vcpu.text)
memory = tree.find('./memory')
if memory is not None:
definition['memory'] = int(memory.text)
os = {}
os_type = tree.find('./os/type')
if os_type is not None:
os['type'] = os_type.text
os['arch'] = os_type.get('arch', node_arch)
os_kernel = tree.find('./os/kernel')
if os_kernel is not None:
os['kernel'] = os_kernel.text
os_initrd = tree.find('./os/initrd')
if os_initrd is not None:
os['initrd'] = os_initrd.text
os_cmdline = tree.find('./os/cmdline')
if os_cmdline is not None:
os['cmdline'] = os_cmdline.text
os_boot = tree.find('./os/boot')
if os_boot is not None:
os['boot_dev'] = os_boot.get('dev')
definition['os'] = os
features = {}
acpi = tree.find('./features/acpi')
if acpi is not None:
features['acpi'] = True
definition['features'] = features
devices = {}
device_nodes = tree.find('./devices')
if device_nodes is not None:
disks_info = []
disks = device_nodes.findall('./disk')
for disk in disks:
disks_info += [_parse_disk_info(disk)]
devices['disks'] = disks_info
nics_info = []
nics = device_nodes.findall('./interface')
for nic in nics:
nic_info = {}
nic_info['type'] = nic.get('type')
mac = nic.find('./mac')
if mac is not None:
nic_info['mac'] = mac.get('address')
source = nic.find('./source')
if source is not None:
if nic_info['type'] == 'network':
nic_info['source'] = source.get('network')
elif nic_info['type'] == 'bridge':
nic_info['source'] = source.get('bridge')
nics_info += [nic_info]
devices['nics'] = nics_info
definition['devices'] = devices
return definition
def create(self):
self.createWithFlags(0)
def createWithFlags(self, flags):
# FIXME: Not handling flags at the moment
self._state = VIR_DOMAIN_RUNNING
self._connection._mark_running(self)
self._has_saved_state = False
def isActive(self):
return int(self._state == VIR_DOMAIN_RUNNING)
def undefine(self):
self._connection._undefine(self)
def undefineFlags(self, flags):
self.undefine()
if flags & VIR_DOMAIN_UNDEFINE_MANAGED_SAVE:
if self.hasManagedSaveImage(0):
self.managedSaveRemove()
def destroy(self):
self._state = VIR_DOMAIN_SHUTOFF
self._connection._mark_not_running(self)
def ID(self):
return self._id
def name(self):
return self._def['name']
def UUIDString(self):
return self._def['uuid']
def interfaceStats(self, device):
return [10000242400, 1234, 0, 2, 213412343233, 34214234, 23, 3]
def blockStats(self, device):
return [2, 10000242400, 234, 2343424234, 34]
def suspend(self):
self._state = VIR_DOMAIN_PAUSED
def shutdown(self):
self._state = VIR_DOMAIN_SHUTDOWN
self._connection._mark_not_running(self)
def reset(self, flags):
# FIXME: Not handling flags at the moment
self._state = VIR_DOMAIN_RUNNING
self._connection._mark_running(self)
def info(self):
return [self._state,
long(self._def['memory']),
long(self._def['memory']),
self._def['vcpu'],
123456789L]
def migrateToURI(self, desturi, flags, dname, bandwidth):
raise make_libvirtError(
libvirtError,
"Migration always fails for fake libvirt!",
error_code=VIR_ERR_INTERNAL_ERROR,
error_domain=VIR_FROM_QEMU)
def migrateToURI2(self, dconnuri, miguri, dxml, flags, dname, bandwidth):
raise make_libvirtError(
libvirtError,
"Migration always fails for fake libvirt!",
error_code=VIR_ERR_INTERNAL_ERROR,
error_domain=VIR_FROM_QEMU)
def attachDevice(self, xml):
disk_info = _parse_disk_info(etree.fromstring(xml))
disk_info['_attached'] = True
self._def['devices']['disks'] += [disk_info]
return True
def attachDeviceFlags(self, xml, flags):
if (flags & VIR_DOMAIN_AFFECT_LIVE and
self._state != VIR_DOMAIN_RUNNING):
raise make_libvirtError(
libvirtError,
"AFFECT_LIVE only allowed for running domains!",
error_code=VIR_ERR_INTERNAL_ERROR,
error_domain=VIR_FROM_QEMU)
self.attachDevice(xml)
def detachDevice(self, xml):
disk_info = _parse_disk_info(etree.fromstring(xml))
disk_info['_attached'] = True
return disk_info in self._def['devices']['disks']
def detachDeviceFlags(self, xml, _flags):
self.detachDevice(xml)
def XMLDesc(self, flags):
disks = ''
for disk in self._def['devices']['disks']:
disks += '''<disk type='%(type)s' device='%(device)s'>
<driver name='%(driver_name)s' type='%(driver_type)s'/>
<source file='%(source)s'/>
<target dev='%(target_dev)s' bus='%(target_bus)s'/>
<address type='drive' controller='0' bus='0' unit='0'/>
</disk>''' % disk
nics = ''
for nic in self._def['devices']['nics']:
nics += '''<interface type='%(type)s'>
<mac address='%(mac)s'/>
<source %(type)s='%(source)s'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x03'
function='0x0'/>
</interface>''' % nic
return '''<domain type='kvm'>
<name>%(name)s</name>
<uuid>%(uuid)s</uuid>
<memory>%(memory)s</memory>
<currentMemory>%(memory)s</currentMemory>
<vcpu>%(vcpu)s</vcpu>
<os>
<type arch='%(arch)s' machine='pc-0.12'>hvm</type>
<boot dev='hd'/>
</os>
<features>
<acpi/>
<apic/>
<pae/>
</features>
<clock offset='localtime'/>
<on_poweroff>destroy</on_poweroff>
<on_reboot>restart</on_reboot>
<on_crash>restart</on_crash>
<devices>
<emulator>/usr/bin/kvm</emulator>
%(disks)s
<controller type='ide' index='0'>
<address type='pci' domain='0x0000' bus='0x00' slot='0x01'
function='0x1'/>
</controller>
%(nics)s
<serial type='file'>
<source path='dummy.log'/>
<target port='0'/>
</serial>
<serial type='pty'>
<source pty='/dev/pts/27'/>
<target port='1'/>
</serial>
<serial type='tcp'>
<source host="-1" service="-1" mode="bind"/>
</serial>
<console type='file'>
<source path='dummy.log'/>
<target port='0'/>
</console>
<input type='tablet' bus='usb'/>
<input type='mouse' bus='ps2'/>
<graphics type='vnc' port='-1' autoport='yes'/>
<graphics type='spice' port='-1' autoport='yes'/>
<video>
<model type='cirrus' vram='9216' heads='1'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x02'
function='0x0'/>
</video>
<memballoon model='virtio'>
<address type='pci' domain='0x0000' bus='0x00' slot='0x04'
function='0x0'/>
</memballoon>
</devices>
</domain>''' % {'name': self._def['name'],
'uuid': self._def['uuid'],
'memory': self._def['memory'],
'vcpu': self._def['vcpu'],
'arch': self._def['os']['arch'],
'disks': disks,
'nics': nics}
def managedSave(self, flags):
self._connection._mark_not_running(self)
self._has_saved_state = True
def managedSaveRemove(self, flags):
self._has_saved_state = False
def hasManagedSaveImage(self, flags):
return int(self._has_saved_state)
def resume(self):
self._state = VIR_DOMAIN_RUNNING
def snapshotCreateXML(self, xml, flags):
tree = etree.fromstring(xml)
name = tree.find('./name').text
snapshot = DomainSnapshot(name, self)
self._snapshots[name] = snapshot
return snapshot
def vcpus(self):
vcpus = ([], [])
for i in range(0, self._def['vcpu']):
vcpus[0].append((i, 1, 120405L, i))
vcpus[1].append((True, True, True, True))
return vcpus
def memoryStats(self):
return {}
def maxMemory(self):
return self._def['memory']
def blockJobInfo(self, disk, flags):
return {}
class DomainSnapshot(object):
def __init__(self, name, domain):
self._name = name
self._domain = domain
def delete(self, flags):
del self._domain._snapshots[self._name]
class Connection(object):
def __init__(self, uri=None, readonly=False, version=9011):
if not uri or uri == '':
if allow_default_uri_connection:
uri = 'qemu:///session'
else:
raise ValueError("URI was None, but fake libvirt is "
"configured to not accept this.")
uri_whitelist = ['qemu:///system',
'qemu:///session',
'lxc:///', # from LibvirtDriver.uri()
'xen:///', # from LibvirtDriver.uri()
'uml:///system',
'test:///default',
'parallels:///system']
if uri not in uri_whitelist:
raise make_libvirtError(
libvirtError,
"libvirt error: no connection driver "
"available for No connection for URI %s" % uri,
error_code=5, error_domain=0)
self.readonly = readonly
self._uri = uri
self._vms = {}
self._running_vms = {}
self._id_counter = 1 # libvirt reserves 0 for the hypervisor.
self._nwfilters = {}
self._nodedevs = {}
self._event_callbacks = {}
self.fakeLibVersion = version
self.fakeVersion = version
def _add_filter(self, nwfilter):
self._nwfilters[nwfilter._name] = nwfilter
def _remove_filter(self, nwfilter):
del self._nwfilters[nwfilter._name]
def _add_nodedev(self, nodedev):
self._nodedevs[nodedev._name] = nodedev
def _remove_nodedev(self, nodedev):
del self._nodedevs[nodedev._name]
def _mark_running(self, dom):
self._running_vms[self._id_counter] = dom
self._emit_lifecycle(dom, VIR_DOMAIN_EVENT_STARTED, 0)
self._id_counter += 1
def _mark_not_running(self, dom):
if dom._transient:
self._undefine(dom)
dom._id = -1
for (k, v) in self._running_vms.iteritems():
if v == dom:
del self._running_vms[k]
self._emit_lifecycle(dom, VIR_DOMAIN_EVENT_STOPPED, 0)
return
def _undefine(self, dom):
del self._vms[dom.name()]
if not dom._transient:
self._emit_lifecycle(dom, VIR_DOMAIN_EVENT_UNDEFINED, 0)
def getInfo(self):
return [node_arch,
node_kB_mem,
node_cpus,
node_mhz,
node_nodes,
node_sockets,
node_cores,
node_threads]
def numOfDomains(self):
return len(self._running_vms)
def listDomainsID(self):
return self._running_vms.keys()
def lookupByID(self, id):
if id in self._running_vms:
return self._running_vms[id]
raise make_libvirtError(
libvirtError,
'Domain not found: no domain with matching id %d' % id,
error_code=VIR_ERR_NO_DOMAIN,
error_domain=VIR_FROM_QEMU)
def lookupByName(self, name):
if name in self._vms:
return self._vms[name]
raise make_libvirtError(
libvirtError,
'Domain not found: no domain with matching name "%s"' % name,
error_code=VIR_ERR_NO_DOMAIN,
error_domain=VIR_FROM_QEMU)
def listAllDomains(self, flags):
vms = []
for vm in self._vms:
if flags & VIR_CONNECT_LIST_DOMAINS_ACTIVE:
if vm.state != VIR_DOMAIN_SHUTOFF:
vms.append(vm)
if flags & VIR_CONNECT_LIST_DOMAINS_INACTIVE:
if vm.state == VIR_DOMAIN_SHUTOFF:
vms.append(vm)
return vms
def _emit_lifecycle(self, dom, event, detail):
if VIR_DOMAIN_EVENT_ID_LIFECYCLE not in self._event_callbacks:
return
cbinfo = self._event_callbacks[VIR_DOMAIN_EVENT_ID_LIFECYCLE]
callback = cbinfo[0]
opaque = cbinfo[1]
callback(self, dom, event, detail, opaque)
def defineXML(self, xml):
dom = Domain(connection=self, running=False, transient=False, xml=xml)
self._vms[dom.name()] = dom
self._emit_lifecycle(dom, VIR_DOMAIN_EVENT_DEFINED, 0)
return dom
def createXML(self, xml, flags):
dom = Domain(connection=self, running=True, transient=True, xml=xml)
self._vms[dom.name()] = dom
self._emit_lifecycle(dom, VIR_DOMAIN_EVENT_STARTED, 0)
return dom
def getType(self):
if self._uri == 'qemu:///system':
return 'QEMU'
def getLibVersion(self):
return self.fakeLibVersion
def getVersion(self):
return self.fakeVersion
def getHostname(self):
return 'compute1'
def domainEventRegisterAny(self, dom, eventid, callback, opaque):
self._event_callbacks[eventid] = [callback, opaque]
def registerCloseCallback(self, cb, opaque):
pass
def getCapabilities(self):
"""Return spoofed capabilities."""
return '''<capabilities>
<host>
<uuid>cef19ce0-0ca2-11df-855d-b19fbce37686</uuid>
<cpu>
<arch>x86_64</arch>
<model>Penryn</model>
<vendor>Intel</vendor>
<topology sockets='1' cores='2' threads='1'/>
<feature name='xtpr'/>
<feature name='tm2'/>
<feature name='est'/>
<feature name='vmx'/>
<feature name='ds_cpl'/>
<feature name='monitor'/>
<feature name='pbe'/>
<feature name='tm'/>
<feature name='ht'/>
<feature name='ss'/>
<feature name='acpi'/>
<feature name='ds'/>
<feature name='vme'/>
</cpu>
<migration_features>
<live/>
<uri_transports>
<uri_transport>tcp</uri_transport>
</uri_transports>
</migration_features>
<secmodel>
<model>apparmor</model>
<doi>0</doi>
</secmodel>
</host>
<guest>
<os_type>hvm</os_type>
<arch name='i686'>
<wordsize>32</wordsize>
<emulator>/usr/bin/qemu</emulator>
<machine>pc-0.14</machine>
<machine canonical='pc-0.14'>pc</machine>
<machine>pc-0.13</machine>
<machine>pc-0.12</machine>
<machine>pc-0.11</machine>
<machine>pc-0.10</machine>
<machine>isapc</machine>
<domain type='qemu'>
</domain>
<domain type='kvm'>
<emulator>/usr/bin/kvm</emulator>
<machine>pc-0.14</machine>
<machine canonical='pc-0.14'>pc</machine>
<machine>pc-0.13</machine>
<machine>pc-0.12</machine>
<machine>pc-0.11</machine>
<machine>pc-0.10</machine>
<machine>isapc</machine>
</domain>
</arch>
<features>
<cpuselection/>
<deviceboot/>
<pae/>
<nonpae/>
<acpi default='on' toggle='yes'/>
<apic default='on' toggle='no'/>
</features>
</guest>
<guest>
<os_type>hvm</os_type>
<arch name='x86_64'>
<wordsize>64</wordsize>
<emulator>/usr/bin/qemu-system-x86_64</emulator>
<machine>pc-0.14</machine>
<machine canonical='pc-0.14'>pc</machine>
<machine>pc-0.13</machine>
<machine>pc-0.12</machine>
<machine>pc-0.11</machine>
<machine>pc-0.10</machine>
<machine>isapc</machine>
<domain type='qemu'>
</domain>
<domain type='kvm'>
<emulator>/usr/bin/kvm</emulator>
<machine>pc-0.14</machine>
<machine canonical='pc-0.14'>pc</machine>
<machine>pc-0.13</machine>
<machine>pc-0.12</machine>
<machine>pc-0.11</machine>
<machine>pc-0.10</machine>
<machine>isapc</machine>
</domain>
</arch>
<features>
<cpuselection/>
<deviceboot/>
<acpi default='on' toggle='yes'/>
<apic default='on' toggle='no'/>
</features>
</guest>
<guest>
<os_type>hvm</os_type>
<arch name='armv7l'>
<wordsize>32</wordsize>
<emulator>/usr/bin/qemu-system-arm</emulator>
<machine>integratorcp</machine>
<machine>vexpress-a9</machine>
<machine>syborg</machine>
<machine>musicpal</machine>
<machine>mainstone</machine>
<machine>n800</machine>
<machine>n810</machine>
<machine>n900</machine>
<machine>cheetah</machine>
<machine>sx1</machine>
<machine>sx1-v1</machine>
<machine>beagle</machine>
<machine>beaglexm</machine>
<machine>tosa</machine>
<machine>akita</machine>
<machine>spitz</machine>
<machine>borzoi</machine>
<machine>terrier</machine>
<machine>connex</machine>
<machine>verdex</machine>
<machine>lm3s811evb</machine>
<machine>lm3s6965evb</machine>
<machine>realview-eb</machine>
<machine>realview-eb-mpcore</machine>
<machine>realview-pb-a8</machine>
<machine>realview-pbx-a9</machine>
<machine>versatilepb</machine>
<machine>versatileab</machine>
<domain type='qemu'>
</domain>
</arch>
<features>
<deviceboot/>
</features>
</guest>
<guest>
<os_type>hvm</os_type>
<arch name='mips'>
<wordsize>32</wordsize>
<emulator>/usr/bin/qemu-system-mips</emulator>
<machine>malta</machine>
<machine>mipssim</machine>
<machine>magnum</machine>
<machine>pica61</machine>
<machine>mips</machine>
<domain type='qemu'>
</domain>
</arch>
<features>
<deviceboot/>
</features>
</guest>
<guest>
<os_type>hvm</os_type>
<arch name='mipsel'>
<wordsize>32</wordsize>
<emulator>/usr/bin/qemu-system-mipsel</emulator>
<machine>malta</machine>
<machine>mipssim</machine>
<machine>magnum</machine>
<machine>pica61</machine>
<machine>mips</machine>
<domain type='qemu'>
</domain>
</arch>
<features>
<deviceboot/>
</features>
</guest>
<guest>
<os_type>hvm</os_type>
<arch name='sparc'>
<wordsize>32</wordsize>
<emulator>/usr/bin/qemu-system-sparc</emulator>
<machine>SS-5</machine>
<machine>leon3_generic</machine>
<machine>SS-10</machine>
<machine>SS-600MP</machine>
<machine>SS-20</machine>
<machine>Voyager</machine>
<machine>LX</machine>
<machine>SS-4</machine>
<machine>SPARCClassic</machine>
<machine>SPARCbook</machine>
<machine>SS-1000</machine>
<machine>SS-2000</machine>
<machine>SS-2</machine>
<domain type='qemu'>
</domain>
</arch>
</guest>
<guest>
<os_type>hvm</os_type>
<arch name='ppc'>
<wordsize>32</wordsize>
<emulator>/usr/bin/qemu-system-ppc</emulator>
<machine>g3beige</machine>
<machine>virtex-ml507</machine>
<machine>mpc8544ds</machine>
<machine canonical='bamboo-0.13'>bamboo</machine>
<machine>bamboo-0.13</machine>
<machine>bamboo-0.12</machine>
<machine>ref405ep</machine>
<machine>taihu</machine>
<machine>mac99</machine>
<machine>prep</machine>
<domain type='qemu'>
</domain>
</arch>
<features>
<deviceboot/>
</features>
</guest>
</capabilities>'''
def compareCPU(self, xml, flags):
tree = etree.fromstring(xml)
arch_node = tree.find('./arch')
if arch_node is not None:
if arch_node.text not in [arch.X86_64,
arch.I686]:
return VIR_CPU_COMPARE_INCOMPATIBLE
model_node = tree.find('./model')
if model_node is not None:
if model_node.text != node_cpu_model:
return VIR_CPU_COMPARE_INCOMPATIBLE
vendor_node = tree.find('./vendor')
if vendor_node is not None:
if vendor_node.text != node_cpu_vendor:
return VIR_CPU_COMPARE_INCOMPATIBLE
# The rest of the stuff libvirt implements is rather complicated
# and I don't think it adds much value to replicate it here.
return VIR_CPU_COMPARE_IDENTICAL
def getCPUStats(self, cpuNum, flag):
if cpuNum < 2:
return {'kernel': 5664160000000L,
'idle': 1592705190000000L,
'user': 26728850000000L,
'iowait': 6121490000000L}
else:
raise make_libvirtError(
libvirtError,
"invalid argument: Invalid cpu number",
error_code=VIR_ERR_INTERNAL_ERROR,
error_domain=VIR_FROM_QEMU)
def nwfilterLookupByName(self, name):
try:
return self._nwfilters[name]
except KeyError:
raise make_libvirtError(
libvirtError,
"no nwfilter with matching name %s" % name,
error_code=VIR_ERR_NO_NWFILTER,
error_domain=VIR_FROM_NWFILTER)
def nwfilterDefineXML(self, xml):
nwfilter = NWFilter(self, xml)
self._add_filter(nwfilter)
def nodeDeviceLookupByName(self, name):
try:
return self._nodedevs[name]
except KeyError:
raise make_libvirtError(
libvirtError,
"no nodedev with matching name %s" % name,
error_code=VIR_ERR_NO_NODE_DEVICE,
error_domain=VIR_FROM_NODEDEV)
def listDefinedDomains(self):
return []
def listDevices(self, cap, flags):
return []
def baselineCPU(self, cpu, flag):
"""Add new libvirt API."""
return """<cpu mode='custom' match='exact'>
<model>Penryn</model>
<vendor>Intel</vendor>
<feature name='xtpr'/>
<feature name='tm2'/>
<feature name='est'/>
<feature name='vmx'/>
<feature name='ds_cpl'/>
<feature name='monitor'/>
<feature name='pbe'/>
<feature name='tm'/>
<feature name='ht'/>
<feature name='ss'/>
<feature name='acpi'/>
<feature name='ds'/>
<feature name='vme'/>
<feature policy='require' name='aes'/>
</cpu>"""
def secretLookupByUsage(self, usage_type_obj, usage_id):
pass
def secretDefineXML(self, xml):
pass
def openAuth(uri, auth, flags):
if type(auth) != list:
raise Exception("Expected a list for 'auth' parameter")
if type(auth[0]) != list:
raise Exception("Expected a function in 'auth[0]' parameter")
if not callable(auth[1]):
raise Exception("Expected a function in 'auth[1]' parameter")
return Connection(uri, (flags == VIR_CONNECT_RO))
def virEventRunDefaultImpl():
time.sleep(1)
def virEventRegisterDefaultImpl():
if connection_used:
raise Exception("virEventRegisterDefaultImpl() must be "
"called before connection is used.")
def registerErrorHandler(handler, ctxt):
pass
def make_libvirtError(error_class, msg, error_code=None,
error_domain=None, error_message=None,
error_level=None, str1=None, str2=None, str3=None,
int1=None, int2=None):
"""Convenience function for creating `libvirtError` exceptions which
allow you to specify arguments in constructor without having to manipulate
the `err` tuple directly.
We need to pass in `error_class` to this function because it may be
`libvirt.libvirtError` or `fakelibvirt.libvirtError` depending on whether
`libvirt-python` is installed.
"""
exc = error_class(msg)
exc.err = (error_code, error_domain, error_message, error_level,
str1, str2, str3, int1, int2)
return exc
virDomain = Domain
virNodeDevice = NodeDevice
virConnect = Connection
class FakeLibvirtFixture(fixtures.Fixture):
"""This fixture patches the libvirt.openAuth method so that it
always returns an instance of fakelibvirt.virConnect. This
ensures the tests don't mistakenly connect to a real libvirt
daemon instance which would lead to non-deterministic behaviour.
"""
def setUp(self):
super(FakeLibvirtFixture, self).setUp()
try:
import libvirt
patcher = mock.patch.object(
libvirt, "openAuth",
return_value=virConnect("qemu:///system"))
patcher.start()
self.addCleanup(patcher.stop)
except ImportError:
# If we can't import libvirt, the tests will use
# fakelibvirt regardless, so nothing todo here
pass