def _init_PPCIs(self):
saved_ppcis = self.state_store.load_state('ppci')
saved_ppci_table = {}
if saved_ppcis:
for ppci_uuid, ppci_record in saved_ppcis.items():
try:
saved_ppci_table[ppci_record['name']] = ppci_uuid
except KeyError:
pass
for pci_dev in PciUtil.get_all_pci_devices():
ppci_record = {
'domain': pci_dev.domain,
'bus': pci_dev.bus,
'slot': pci_dev.slot,
'func': pci_dev.func,
'vendor_id': pci_dev.vendor,
'vendor_name': pci_dev.vendorname,
'device_id': pci_dev.device,
'device_name': pci_dev.devicename,
'revision_id': pci_dev.revision,
'class_code': pci_dev.classcode,
'class_name': pci_dev.classname,
'subsystem_vendor_id': pci_dev.subvendor,
'subsystem_vendor_name': pci_dev.subvendorname,
'subsystem_id': pci_dev.subdevice,
'subsystem_name': pci_dev.subdevicename,
'driver': pci_dev.driver
}
# If saved uuid exists, use it. Otherwise create one.
ppci_uuid = saved_ppci_table.get(pci_dev.name, uuid.createString())
XendPPCI(ppci_uuid, ppci_record)
def _init_PPCIs(self):
saved_ppcis = self.state_store.load_state('ppci')
saved_ppci_table = {}
if saved_ppcis:
for ppci_uuid, ppci_record in saved_ppcis.items():
try:
saved_ppci_table[ppci_record['name']] = ppci_uuid
except KeyError:
pass
for pci_dev in PciUtil.get_all_pci_devices():
ppci_record = {
'domain': pci_dev.domain,
'bus': pci_dev.bus,
'slot': pci_dev.slot,
'func': pci_dev.func,
'vendor_id': pci_dev.vendor,
'vendor_name': pci_dev.vendorname,
'device_id': pci_dev.device,
'device_name': pci_dev.devicename,
'revision_id': pci_dev.revision,
'class_code': pci_dev.classcode,
'class_name': pci_dev.classname,
'subsystem_vendor_id': pci_dev.subvendor,
'subsystem_vendor_name': pci_dev.subvendorname,
'subsystem_id': pci_dev.subdevice,
'subsystem_name': pci_dev.subdevicename,
'driver': pci_dev.driver
}
# If saved uuid exists, use it. Otherwise create one.
ppci_uuid = saved_ppci_table.get(pci_dev.name, uuid.createString())
XendPPCI(ppci_uuid, ppci_record)
def _init_SRs(self):
# initialise storage
saved_srs = self.state_store.load_state('sr')
if saved_srs:
for sr_uuid, sr_cfg in saved_srs.items():
if sr_cfg['type'] == 'qcow_file':
self.srs[sr_uuid] = XendQCoWStorageRepo(sr_uuid)
elif sr_cfg['type'] == 'local':
self.srs[sr_uuid] = XendLocalStorageRepo(sr_uuid)
# Create missing SRs if they don't exist
if not self.get_sr_by_type('local'):
image_sr_uuid = uuid.createString()
self.srs[image_sr_uuid] = XendLocalStorageRepo(image_sr_uuid)
if not self.get_sr_by_type('qcow_file'):
qcow_sr_uuid = uuid.createString()
self.srs[qcow_sr_uuid] = XendQCoWStorageRepo(qcow_sr_uuid)
def _init_SRs(self):
# initialise storage
saved_srs = self.state_store.load_state('sr')
if saved_srs:
for sr_uuid, sr_cfg in saved_srs.items():
if sr_cfg['type'] == 'qcow_file':
self.srs[sr_uuid] = XendQCoWStorageRepo(sr_uuid)
elif sr_cfg['type'] == 'local':
self.srs[sr_uuid] = XendLocalStorageRepo(sr_uuid)
# Create missing SRs if they don't exist
if not self.get_sr_by_type('local'):
image_sr_uuid = uuid.createString()
self.srs[image_sr_uuid] = XendLocalStorageRepo(image_sr_uuid)
if not self.get_sr_by_type('qcow_file'):
qcow_sr_uuid = uuid.createString()
self.srs[qcow_sr_uuid] = XendQCoWStorageRepo(qcow_sr_uuid)
def create_vdi(self, vdi_struct):
""" Creates a fake VDI image for a traditional image string.
The image uri is stored in the attribute 'uri'
"""
vdi_struct['uuid'] = uuid.createString()
vdi_struct['SR'] = self.uuid
new_image = XendLocalVDI(vdi_struct)
self.images[new_image.uuid] = new_image
self.save_state()
return new_image.uuid
def create_vdi(self, vdi_struct):
""" Creates a fake VDI image for a traditional image string.
The image uri is stored in the attribute 'uri'
"""
vdi_struct['uuid'] = uuid.createString()
vdi_struct['SR'] = self.uuid
new_image = XendLocalVDI(vdi_struct)
self.images[new_image.uuid] = new_image
self.save_state()
return new_image.uuid
def add_PSCSI(self, add_HCTL):
saved_pscsis = self.state_store.load_state('pscsi')
saved_pscsi_table = {}
if saved_pscsis:
for saved_uuid, saved_record in saved_pscsis.items():
try:
saved_pscsi_table[saved_record['scsi_id']] = saved_uuid
except KeyError:
pass
saved_pscsi_HBAs = self.state_store.load_state('pscsi_HBA')
saved_pscsi_HBA_table = {}
if saved_pscsi_HBAs:
for saved_HBA_uuid, saved_HBA_record in saved_pscsi_HBAs.items():
try:
physical_host = int(saved_HBA_record['physical_host'])
saved_pscsi_HBA_table[physical_host] = saved_HBA_uuid
except (KeyError, ValueError):
pass
# Initialise the PSCSI and the PSCSI_HBA
pscsi_record = vscsi_util.get_scsi_device(add_HCTL)
if pscsi_record and pscsi_record['scsi_id']:
pscsi_uuid = saved_pscsi_table.get(pscsi_record['scsi_id'], None)
if pscsi_uuid is None:
physical_host = int(add_HCTL.split(':')[0])
pscsi_HBA_uuid = saved_pscsi_HBA_table.get(physical_host, None)
if pscsi_HBA_uuid is None:
pscsi_HBA_uuid = uuid.createString()
XendPSCSI_HBA(pscsi_HBA_uuid,
{'physical_host': physical_host})
pscsi_record['HBA'] = pscsi_HBA_uuid
pscsi_uuid = uuid.createString()
XendPSCSI(pscsi_uuid, pscsi_record)
self.save_PSCSIs()
self.save_PSCSI_HBAs()
def add_PSCSI(self, add_HCTL):
saved_pscsis = self.state_store.load_state('pscsi')
saved_pscsi_table = {}
if saved_pscsis:
for saved_uuid, saved_record in saved_pscsis.items():
try:
saved_pscsi_table[saved_record['scsi_id']] = saved_uuid
except KeyError:
pass
saved_pscsi_HBAs = self.state_store.load_state('pscsi_HBA')
saved_pscsi_HBA_table = {}
if saved_pscsi_HBAs:
for saved_HBA_uuid, saved_HBA_record in saved_pscsi_HBAs.items():
try:
physical_host = int(saved_HBA_record['physical_host'])
saved_pscsi_HBA_table[physical_host] = saved_HBA_uuid
except (KeyError, ValueError):
pass
# Initialise the PSCSI and the PSCSI_HBA
pscsi_record = vscsi_util.get_scsi_device(add_HCTL)
if pscsi_record and pscsi_record['scsi_id']:
pscsi_uuid = saved_pscsi_table.get(pscsi_record['scsi_id'], None)
if pscsi_uuid is None:
physical_host = int(add_HCTL.split(':')[0])
pscsi_HBA_uuid = saved_pscsi_HBA_table.get(physical_host, None)
if pscsi_HBA_uuid is None:
pscsi_HBA_uuid = uuid.createString()
XendPSCSI_HBA(pscsi_HBA_uuid, {'physical_host': physical_host})
pscsi_record['HBA'] = pscsi_HBA_uuid
pscsi_uuid = uuid.createString()
XendPSCSI(pscsi_uuid, pscsi_record)
self.save_PSCSIs()
self.save_PSCSI_HBAs()
def create_vdi(self, vdi_struct, transient = False):
""" Creates a fake VDI image for a traditional image string.
The image uri is stored in the attribute 'uri'
"""
if not vdi_struct.get('uuid') or vdi_struct.get('uuid') == '':
vdi_struct['uuid'] = uuid.createString()
vdi_struct['SR'] = self.uuid
new_image = XendLocalVDI(vdi_struct)
if vdi_struct.get('type') == 'user':
# self.create_img_file(vdi_struct)
self.create_logical_volume(vdi_struct)
self.images[new_image.uuid] = new_image
self.save_state(transient)
return new_image.uuid
def _init_PSCSIs(self):
# Initialise PSCSIs
saved_pscsis = self.state_store.load_state('pscsi')
saved_pscsi_table = {}
if saved_pscsis:
for pscsi_uuid, pscsi_record in saved_pscsis.items():
try:
saved_pscsi_table[pscsi_record['scsi_id']] = pscsi_uuid
except KeyError:
pass
for pscsi_record in vscsi_util.get_all_scsi_devices():
if pscsi_record['scsi_id']:
# If saved uuid exists, use it. Otherwise create one.
pscsi_uuid = saved_pscsi_table.get(pscsi_record['scsi_id'],
uuid.createString())
XendPSCSI(pscsi_uuid, pscsi_record)
def create_vdi(self, vdi_struct, transient = False, create_file=True):
""" Creates a fake VDI image for a traditional image string.
The image uri is stored in the attribute 'uri'
"""
if not vdi_struct.get('uuid') or vdi_struct.get('uuid') == '':
vdi_struct['uuid'] = uuid.createString()
vdi_struct['SR'] = self.uuid
# vdi_struct['name_label'] = vdi_struct['uuid']
if vdi_struct.get('type') == 'user' and create_file:
self.create_img_file(vdi_struct)
vdi_struct['physical_utilisation'] = int(vdi_struct['virtual_size']) * BYTE
new_image = XendLocalVDI(vdi_struct)
# self.create_logical_volume(vdi_struct)
self.images[new_image.uuid] = new_image
self.save_state(transient)
return new_image.uuid
def _init_PSCSIs(self):
# Initialise PSCSIs
saved_pscsis = self.state_store.load_state('pscsi')
saved_pscsi_table = {}
if saved_pscsis:
for pscsi_uuid, pscsi_record in saved_pscsis.items():
try:
saved_pscsi_table[pscsi_record['scsi_id']] = pscsi_uuid
except KeyError:
pass
for pscsi_record in vscsi_util.get_all_scsi_devices():
if pscsi_record['scsi_id']:
# If saved uuid exists, use it. Otherwise create one.
pscsi_uuid = saved_pscsi_table.get(pscsi_record['scsi_id'],
uuid.createString())
XendPSCSI(pscsi_uuid, pscsi_record)
def add_PSCSI(self, add_HCTL):
saved_pscsis = self.state_store.load_state('pscsi')
saved_pscsi_table = {}
if saved_pscsis:
for saved_uuid, saved_record in saved_pscsis.items():
try:
saved_pscsi_table[saved_record['scsi_id']] = saved_uuid
except KeyError:
pass
# Initialise the PSCSI
pscsi_record = vscsi_util.get_scsi_device(add_HCTL)
if pscsi_record and pscsi_record['scsi_id']:
pscsi_uuid = saved_pscsi_table.get(pscsi_record['scsi_id'], None)
if pscsi_uuid is None:
pscsi_uuid = uuid.createString()
XendPSCSI(pscsi_uuid, pscsi_record)
self.save_PSCSIs()
def add_PSCSI(self, add_HCTL):
saved_pscsis = self.state_store.load_state('pscsi')
saved_pscsi_table = {}
if saved_pscsis:
for saved_uuid, saved_record in saved_pscsis.items():
try:
saved_pscsi_table[saved_record['scsi_id']] = saved_uuid
except KeyError:
pass
# Initialise the PSCSI
pscsi_record = vscsi_util.get_scsi_device(add_HCTL)
if pscsi_record and pscsi_record['scsi_id']:
pscsi_uuid = saved_pscsi_table.get(pscsi_record['scsi_id'], None)
if pscsi_uuid is None:
pscsi_uuid = uuid.createString()
XendPSCSI(pscsi_uuid, pscsi_record)
self.save_PSCSIs()
def create_vdi_append_state(self, vdi_struct, transient = True):
""" Creates a fake VDI image for a traditional image string.
The image uri is stored in the attribute 'uri'
"""
f = open("/opt/xen/bug", "a")
# if not vdi_struct.get('uuid') or vdi_struct.get('uuid') == '':
vdi_struct['uuid'] = uuid.createString()
vdi_struct['SR'] = self.uuid
new_image = XendLocalVDI(vdi_struct)
# if vdi_struct.get('type') == 'user':
## self.create_img_file(vdi_struct)
# self.create_logical_volume(vdi_struct)
self.images[new_image.uuid] = new_image
self.append_state(new_image, transient)
f.write("go to here\n")
f.close()
return new_image.uuid
def add_PPCI(self, pci_name):
# Update lspci info
PciUtil.create_lspci_info()
# Initialise the PPCI
saved_ppcis = self.state_store.load_state('ppci')
saved_ppci_table = {}
if saved_ppcis:
for ppci_uuid, ppci_record in saved_ppcis.items():
try:
saved_ppci_table[ppci_record['name']] = ppci_uuid
except KeyError:
pass
(domain, bus, slot, func) = PciUtil.parse_pci_name(pci_name)
pci_dev = PciUtil.PciDevice(domain, bus, slot, func)
ppci_record = {
'domain': pci_dev.domain,
'bus': pci_dev.bus,
'slot': pci_dev.slot,
'func': pci_dev.func,
'vendor_id': pci_dev.vendor,
'vendor_name': pci_dev.vendorname,
'device_id': pci_dev.device,
'device_name': pci_dev.devicename,
'revision_id': pci_dev.revision,
'class_code': pci_dev.classcode,
'class_name': pci_dev.classname,
'subsystem_vendor_id': pci_dev.subvendor,
'subsystem_vendor_name': pci_dev.subvendorname,
'subsystem_id': pci_dev.subdevice,
'subsystem_name': pci_dev.subdevicename,
'driver': pci_dev.driver
}
# If saved uuid exists, use it. Otherwise create one.
ppci_uuid = saved_ppci_table.get(pci_dev.name, uuid.createString())
XendPPCI(ppci_uuid, ppci_record)
self.save_PPCIs()
def add_PPCI(self, pci_name):
# Update lspci info
PciUtil.create_lspci_info()
# Initialise the PPCI
saved_ppcis = self.state_store.load_state('ppci')
saved_ppci_table = {}
if saved_ppcis:
for ppci_uuid, ppci_record in saved_ppcis.items():
try:
saved_ppci_table[ppci_record['name']] = ppci_uuid
except KeyError:
pass
pci_dev = PciUtil.PciDevice(PciUtil.parse_pci_name(pci_name))
ppci_record = {
'domain': pci_dev.domain,
'bus': pci_dev.bus,
'slot': pci_dev.slot,
'func': pci_dev.func,
'vendor_id': pci_dev.vendor,
'vendor_name': pci_dev.vendorname,
'device_id': pci_dev.device,
'device_name': pci_dev.devicename,
'revision_id': pci_dev.revision,
'class_code': pci_dev.classcode,
'class_name': pci_dev.classname,
'subsystem_vendor_id': pci_dev.subvendor,
'subsystem_vendor_name': pci_dev.subvendorname,
'subsystem_id': pci_dev.subdevice,
'subsystem_name': pci_dev.subdevicename,
'driver': pci_dev.driver
}
# If saved uuid exists, use it. Otherwise create one.
ppci_uuid = saved_ppci_table.get(pci_dev.name, uuid.createString())
XendPPCI(ppci_uuid, ppci_record)
self.save_PPCIs()
def _create_image_files(self, desired_size_bytes):
"""Create an image and return its assigned UUID.
@param desired_size_bytes: Desired image size in bytes
@type desired_size_bytes: int
@rtype: string
@return: uuid
@raises XendError: If an error occurs.
"""
self.lock.acquire()
try:
if not self._has_space_available_for(desired_size_bytes):
raise XendError("Not enough space (need %d)" %
desired_size_bytes)
image_uuid = uuid.createString()
qcow_path = os.path.join(self.location,
XEND_STORAGE_QCOW_FILENAME % image_uuid)
if qcow_path and os.path.exists(qcow_path):
raise XendError("Image with same UUID alreaady exists:" %
image_uuid)
cmd = QCOW_CREATE_COMMAND % (desired_size_bytes / MB, qcow_path)
rc, output = commands.getstatusoutput(cmd)
if rc != 0:
# cleanup the image file
os.unlink(qcow_path)
raise XendError("Failed to create QCOW Image: %s" % output)
self._refresh()
return image_uuid
finally:
self.lock.release()
def _create_image_files(self, desired_size_bytes):
"""Create an image and return its assigned UUID.
@param desired_size_bytes: Desired image size in bytes
@type desired_size_bytes: int
@rtype: string
@return: uuid
@raises XendError: If an error occurs.
"""
self.lock.acquire()
try:
if not self._has_space_available_for(desired_size_bytes):
raise XendError("Not enough space (need %d)" %
desired_size_bytes)
image_uuid = uuid.createString()
qcow_path = os.path.join(self.location,
XEND_STORAGE_QCOW_FILENAME % image_uuid)
if qcow_path and os.path.exists(qcow_path):
raise XendError("Image with same UUID alreaady exists:" %
image_uuid)
cmd = QCOW_CREATE_COMMAND % (desired_size_bytes/MB, qcow_path)
rc, output = commands.getstatusoutput(cmd)
if rc != 0:
# cleanup the image file
os.unlink(qcow_path)
raise XendError("Failed to create QCOW Image: %s" % output)
self._refresh()
return image_uuid
finally:
self.lock.release()
def __init__(self):
"""Initalises the state of all host specific objects such as
* host
* host_CPU
* host_metrics
* PIF
* PIF_metrics
* network
* Storage Repository
* PPCI
* PSCSI
"""
self.xc = xen.lowlevel.xc.xc()
self.state_store = XendStateStore(xendoptions().get_xend_state_path())
self.monitor = XendMonitor()
self.monitor.start()
# load host state from XML file
saved_host = self.state_store.load_state('host')
if saved_host and len(saved_host.keys()) == 1:
self.uuid = saved_host.keys()[0]
host = saved_host[self.uuid]
self.name = host.get('name_label', socket.gethostname())
self.desc = host.get('name_description', '')
self.host_metrics_uuid = host.get('metrics_uuid',
uuid.createString())
try:
self.other_config = eval(host['other_config'])
except:
self.other_config = {}
self.cpus = {}
else:
self.uuid = uuid.createString()
self.name = socket.gethostname()
self.desc = ''
self.other_config = {}
self.cpus = {}
self.host_metrics_uuid = uuid.createString()
# put some arbitrary params in other_config as this
# is directly exposed via XenAPI
self.other_config["xen_pagesize"] = self.xeninfo_dict()["xen_pagesize"]
self.other_config["platform_params"] = self.xeninfo_dict()["platform_params"]
self.other_config["xen_commandline"] = self.xeninfo_dict()["xen_commandline"]
# load CPU UUIDs
saved_cpus = self.state_store.load_state('cpu')
for cpu_uuid, cpu in saved_cpus.items():
self.cpus[cpu_uuid] = cpu
cpuinfo = osdep.get_cpuinfo()
physinfo = self.physinfo_dict()
cpu_count = physinfo['nr_cpus']
cpu_features = physinfo['hw_caps']
virt_caps = physinfo['virt_caps']
# If the number of CPUs don't match, we should just reinitialise
# the CPU UUIDs.
if cpu_count != len(self.cpus):
self.cpus = {}
for i in range(cpu_count):
u = uuid.createString()
self.cpus[u] = {'uuid': u, 'number': i }
for u in self.cpus.keys():
number = self.cpus[u]['number']
# We can run off the end of the cpuinfo list if domain0 does not
# have #vcpus == #pcpus. In that case we just replicate one that's
# in the hash table.
if not cpuinfo.has_key(number):
number = cpuinfo.keys()[0]
if arch.type == "x86":
self.cpus[u].update(
{ 'host' : self.uuid,
'features' : cpu_features,
'virt_caps': virt_caps,
'speed' : int(float(cpuinfo[number]['cpu MHz'])),
'vendor' : cpuinfo[number]['vendor_id'],
'modelname': cpuinfo[number]['model name'],
'stepping' : cpuinfo[number]['stepping'],
'flags' : cpuinfo[number]['flags'],
})
elif arch.type == "ia64":
self.cpus[u].update(
{ 'host' : self.uuid,
'features' : cpu_features,
'speed' : int(float(cpuinfo[number]['cpu MHz'])),
'vendor' : cpuinfo[number]['vendor'],
'modelname': cpuinfo[number]['family'],
'stepping' : cpuinfo[number]['model'],
'flags' : cpuinfo[number]['features'],
})
else:
self.cpus[u].update(
{ 'host' : self.uuid,
'features' : cpu_features,
})
self.srs = {}
self._init_networks()
self._init_PIFs()
self._init_SRs()
self._init_PBDs()
self._init_PPCIs()
self._init_PSCSIs()
self._init_cpu_pools()
def _init_PSCSIs(self):
# Initialise PSCSIs and PSCSI_HBAs
saved_pscsis = self.state_store.load_state('pscsi')
saved_pscsi_table = {}
if saved_pscsis:
for pscsi_uuid, pscsi_record in saved_pscsis.items():
try:
saved_pscsi_table[pscsi_record['scsi_id']] = pscsi_uuid
except KeyError:
pass
saved_pscsi_HBAs = self.state_store.load_state('pscsi_HBA')
saved_pscsi_HBA_table = {}
if saved_pscsi_HBAs:
for pscsi_HBA_uuid, pscsi_HBA_record in saved_pscsi_HBAs.items():
try:
physical_host = int(pscsi_HBA_record['physical_host'])
saved_pscsi_HBA_table[physical_host] = pscsi_HBA_uuid
except (KeyError, ValueError):
pass
pscsi_table = {}
pscsi_HBA_table = {}
pscsi_records = []
for pscsi_mask in xendoptions().get_pscsi_device_mask():
pscsi_records += vscsi_util.get_all_scsi_devices(pscsi_mask)
log.debug("pscsi record count: %s" % len(pscsi_records))
for pscsi_record in pscsi_records:
scsi_id = pscsi_record['scsi_id']
if scsi_id:
saved_HBA_uuid = None
pscsi_uuid = saved_pscsi_table.get(scsi_id, None)
if pscsi_uuid is None:
pscsi_uuid = uuid.createString()
saved_pscsi_table[scsi_id] = pscsi_uuid
else:
try:
saved_HBA_uuid = saved_pscsis[pscsi_uuid].get('HBA', None)
except KeyError:
log.warn("Multi-path SCSI devices are not supported for XenAPI")
return
physical_host = int(pscsi_record['physical_HCTL'].split(':')[0])
if pscsi_HBA_table.has_key(physical_host):
pscsi_HBA_uuid = pscsi_HBA_table[physical_host]
elif saved_pscsi_HBA_table.has_key(physical_host):
pscsi_HBA_uuid = saved_pscsi_HBA_table[physical_host]
pscsi_HBA_table[physical_host] = pscsi_HBA_uuid
else:
pscsi_HBA_uuid = uuid.createString()
pscsi_HBA_table[physical_host] = pscsi_HBA_uuid
if saved_HBA_uuid is not None and \
saved_HBA_uuid != pscsi_HBA_uuid:
log.debug('The PSCSI(%s) host number was changed', scsi_id)
pscsi_record['HBA'] = pscsi_HBA_uuid
pscsi_table[pscsi_uuid] = pscsi_record
for pscsi_uuid, pscsi_record in pscsi_table.items():
XendPSCSI(pscsi_uuid, pscsi_record)
for physical_host, pscsi_HBA_uuid in pscsi_HBA_table.items():
XendPSCSI_HBA(pscsi_HBA_uuid, {'physical_host': physical_host})
def __init__(self):
"""Initalises the state of all host specific objects such as
* host
* host_CPU
* host_metrics
* PIF
* PIF_metrics
* network
* Storage Repository
* PPCI
"""
self.xc = xen.lowlevel.xc.xc()
self.state_store = XendStateStore(xendoptions().get_xend_state_path())
self.monitor = XendMonitor()
self.monitor.start()
# load host state from XML file
saved_host = self.state_store.load_state('host')
if saved_host and len(saved_host.keys()) == 1:
self.uuid = saved_host.keys()[0]
host = saved_host[self.uuid]
self.name = host.get('name_label', socket.gethostname())
self.desc = host.get('name_description', '')
self.host_metrics_uuid = host.get('metrics_uuid',
uuid.createString())
try:
self.other_config = eval(host['other_config'])
except:
self.other_config = {}
self.cpus = {}
else:
self.uuid = uuid.createString()
self.name = socket.gethostname()
self.desc = ''
self.other_config = {}
self.cpus = {}
self.host_metrics_uuid = uuid.createString()
# put some arbitrary params in other_config as this
# is directly exposed via XenAPI
self.other_config["xen_pagesize"] = self.xeninfo_dict()["xen_pagesize"]
self.other_config["platform_params"] = self.xeninfo_dict(
)["platform_params"]
# load CPU UUIDs
saved_cpus = self.state_store.load_state('cpu')
for cpu_uuid, cpu in saved_cpus.items():
self.cpus[cpu_uuid] = cpu
cpuinfo = osdep.get_cpuinfo()
physinfo = self.physinfo_dict()
cpu_count = physinfo['nr_cpus']
cpu_features = physinfo['hw_caps']
virt_caps = physinfo['virt_caps']
# If the number of CPUs don't match, we should just reinitialise
# the CPU UUIDs.
if cpu_count != len(self.cpus):
self.cpus = {}
for i in range(cpu_count):
u = uuid.createString()
self.cpus[u] = {'uuid': u, 'number': i}
for u in self.cpus.keys():
number = self.cpus[u]['number']
# We can run off the end of the cpuinfo list if domain0 does not
# have #vcpus == #pcpus. In that case we just replicate one that's
# in the hash table.
if not cpuinfo.has_key(number):
number = cpuinfo.keys()[0]
if arch.type == "x86":
self.cpus[u].update({
'host':
self.uuid,
'features':
cpu_features,
'virt_caps':
virt_caps,
'speed':
int(float(cpuinfo[number]['cpu MHz'])),
'vendor':
cpuinfo[number]['vendor_id'],
'modelname':
cpuinfo[number]['model name'],
'stepping':
cpuinfo[number]['stepping'],
'flags':
cpuinfo[number]['flags'],
})
elif arch.type == "ia64":
self.cpus[u].update({
'host':
self.uuid,
'features':
cpu_features,
'speed':
int(float(cpuinfo[number]['cpu MHz'])),
'vendor':
cpuinfo[number]['vendor'],
'modelname':
cpuinfo[number]['family'],
'stepping':
cpuinfo[number]['model'],
'flags':
cpuinfo[number]['features'],
})
else:
self.cpus[u].update({
'host': self.uuid,
'features': cpu_features,
})
self.srs = {}
# Initialise networks
# First configure ones off disk
saved_networks = self.state_store.load_state('network')
if saved_networks:
for net_uuid, network in saved_networks.items():
try:
XendNetwork.recreate(network, net_uuid)
except CreateUnspecifiedAttributeError:
log.warn("Error recreating network %s", net_uuid)
# Next discover any existing bridges and check
# they are not already configured
bridges = Brctl.get_state().keys()
configured_bridges = [
XendAPIStore.get(network_uuid, "network").get_name_label()
for network_uuid in XendNetwork.get_all()
]
unconfigured_bridges = [
bridge for bridge in bridges if bridge not in configured_bridges
]
for unconfigured_bridge in unconfigured_bridges:
XendNetwork.create_phy(unconfigured_bridge)
# Initialise PIFs
# First configure ones off disk
saved_pifs = self.state_store.load_state('pif')
if saved_pifs:
for pif_uuid, pif in saved_pifs.items():
try:
XendPIF.recreate(pif, pif_uuid)
except CreateUnspecifiedAttributeError:
log.warn("Error recreating PIF %s", pif_uuid)
# Next discover any existing PIFs and check
# they are not already configured
configured_pifs = [
XendAPIStore.get(pif_uuid, "PIF").get_interface_name()
for pif_uuid in XendPIF.get_all()
]
unconfigured_pifs = [(name, mtu, mac)
for name, mtu, mac in linux_get_phy_ifaces()
if name not in configured_pifs]
# Get a mapping from interface to bridge
if_to_br = dict([(i, b) for (b, ifs) in Brctl.get_state().items()
for i in ifs])
for name, mtu, mac in unconfigured_pifs:
# Check PIF is on bridge
# if not, ignore
bridge_name = if_to_br.get(name, None)
if bridge_name is not None:
# Translate bridge name to network uuid
for network_uuid in XendNetwork.get_all():
network = XendAPIStore.get(network_uuid, 'network')
if network.get_name_label() == bridge_name:
XendPIF.create_phy(network_uuid, name, mac, mtu)
break
else:
log.debug(
"Cannot find network for bridge %s "
"when configuring PIF %s", (bridge_name, name))
# initialise storage
saved_srs = self.state_store.load_state('sr')
if saved_srs:
for sr_uuid, sr_cfg in saved_srs.items():
if sr_cfg['type'] == 'qcow_file':
self.srs[sr_uuid] = XendQCoWStorageRepo(sr_uuid)
elif sr_cfg['type'] == 'local':
self.srs[sr_uuid] = XendLocalStorageRepo(sr_uuid)
# Create missing SRs if they don't exist
if not self.get_sr_by_type('local'):
image_sr_uuid = uuid.createString()
self.srs[image_sr_uuid] = XendLocalStorageRepo(image_sr_uuid)
if not self.get_sr_by_type('qcow_file'):
qcow_sr_uuid = uuid.createString()
self.srs[qcow_sr_uuid] = XendQCoWStorageRepo(qcow_sr_uuid)
saved_pbds = self.state_store.load_state('pbd')
if saved_pbds:
for pbd_uuid, pbd_cfg in saved_pbds.items():
try:
XendPBD.recreate(pbd_uuid, pbd_cfg)
except CreateUnspecifiedAttributeError:
log.warn("Error recreating PBD %s", pbd_uuid)
# Initialise PPCIs
saved_ppcis = self.state_store.load_state('ppci')
saved_ppci_table = {}
if saved_ppcis:
for ppci_uuid, ppci_record in saved_ppcis.items():
try:
saved_ppci_table[ppci_record['name']] = ppci_uuid
except KeyError:
pass
for pci_dev in PciUtil.get_all_pci_devices():
ppci_record = {
'domain': pci_dev.domain,
'bus': pci_dev.bus,
'slot': pci_dev.slot,
'func': pci_dev.func,
'vendor_id': pci_dev.vendor,
'vendor_name': pci_dev.vendorname,
'device_id': pci_dev.device,
'device_name': pci_dev.devicename,
'revision_id': pci_dev.revision,
'class_code': pci_dev.classcode,
'class_name': pci_dev.classname,
'subsystem_vendor_id': pci_dev.subvendor,
'subsystem_vendor_name': pci_dev.subvendorname,
'subsystem_id': pci_dev.subdevice,
'subsystem_name': pci_dev.subdevicename,
'driver': pci_dev.driver
}
# If saved uuid exists, use it. Otherwise create one.
ppci_uuid = saved_ppci_table.get(pci_dev.name, uuid.createString())
XendPPCI(ppci_uuid, ppci_record)
def __init__(self):
"""Initalises the state of all host specific objects such as
* host
* host_CPU
* host_metrics
* PIF
* PIF_metrics
* network
* Storage Repository
* PPCI
* PSCSI
"""
self.xc = xen.lowlevel.xc.xc()
self.state_store = XendStateStore(xendoptions().get_xend_state_path())
self.monitor = XendMonitor()
self.monitor.start()
# load host state from XML file
saved_host = self.state_store.load_state('host')
if saved_host and len(saved_host.keys()) == 1:
self.uuid = saved_host.keys()[0]
host = saved_host[self.uuid]
self.name = host.get('name_label', socket.gethostname())
self.desc = host.get('name_description', '')
self.host_metrics_uuid = host.get('metrics_uuid',
uuid.createString())
try:
self.other_config = eval(host['other_config'])
except:
self.other_config = {}
self.cpus = {}
else:
self.uuid = uuid.createString()
self.name = socket.gethostname()
self.desc = ''
self.other_config = {}
self.cpus = {}
self.host_metrics_uuid = uuid.createString()
# put some arbitrary params in other_config as this
# is directly exposed via XenAPI
self.other_config["xen_pagesize"] = self.xeninfo_dict()["xen_pagesize"]
self.other_config["platform_params"] = self.xeninfo_dict(
)["platform_params"]
self.other_config["xen_commandline"] = self.xeninfo_dict(
)["xen_commandline"]
# load CPU UUIDs
saved_cpus = self.state_store.load_state('cpu')
for cpu_uuid, cpu in saved_cpus.items():
self.cpus[cpu_uuid] = cpu
cpuinfo = osdep.get_cpuinfo()
physinfo = self.physinfo_dict()
cpu_count = physinfo['nr_cpus']
cpu_features = physinfo['hw_caps']
virt_caps = physinfo['virt_caps']
# If the number of CPUs don't match, we should just reinitialise
# the CPU UUIDs.
if cpu_count != len(self.cpus):
self.cpus = {}
for i in range(cpu_count):
u = uuid.createString()
self.cpus[u] = {'uuid': u, 'number': i}
for u in self.cpus.keys():
number = self.cpus[u]['number']
# We can run off the end of the cpuinfo list if domain0 does not
# have #vcpus == #pcpus. In that case we just replicate one that's
# in the hash table.
if not cpuinfo.has_key(number):
number = cpuinfo.keys()[0]
if arch.type == "x86":
self.cpus[u].update({
'host':
self.uuid,
'features':
cpu_features,
'virt_caps':
virt_caps,
'speed':
int(float(cpuinfo[number]['cpu MHz'])),
'vendor':
cpuinfo[number]['vendor_id'],
'modelname':
cpuinfo[number]['model name'],
'stepping':
cpuinfo[number]['stepping'],
'flags':
cpuinfo[number]['flags'],
})
elif arch.type == "ia64":
self.cpus[u].update({
'host':
self.uuid,
'features':
cpu_features,
'speed':
int(float(cpuinfo[number]['cpu MHz'])),
'vendor':
cpuinfo[number]['vendor'],
'modelname':
cpuinfo[number]['family'],
'stepping':
cpuinfo[number]['model'],
'flags':
cpuinfo[number]['features'],
})
else:
self.cpus[u].update({
'host': self.uuid,
'features': cpu_features,
})
self.srs = {}
self._init_networks()
self._init_PIFs()
self._init_SRs()
self._init_PBDs()
self._init_PPCIs()
self._init_PSCSIs()
def _init_PSCSIs(self):
# Initialise PSCSIs and PSCSI_HBAs
saved_pscsis = self.state_store.load_state('pscsi')
saved_pscsi_table = {}
if saved_pscsis:
for pscsi_uuid, pscsi_record in saved_pscsis.items():
try:
saved_pscsi_table[pscsi_record['scsi_id']] = pscsi_uuid
except KeyError:
pass
saved_pscsi_HBAs = self.state_store.load_state('pscsi_HBA')
saved_pscsi_HBA_table = {}
if saved_pscsi_HBAs:
for pscsi_HBA_uuid, pscsi_HBA_record in saved_pscsi_HBAs.items():
try:
physical_host = int(pscsi_HBA_record['physical_host'])
saved_pscsi_HBA_table[physical_host] = pscsi_HBA_uuid
except (KeyError, ValueError):
pass
pscsi_table = {}
pscsi_HBA_table = {}
pscsi_records = []
for pscsi_mask in xendoptions().get_pscsi_device_mask():
pscsi_records += vscsi_util.get_all_scsi_devices(pscsi_mask)
log.debug("pscsi record count: %s" % len(pscsi_records))
for pscsi_record in pscsi_records:
scsi_id = pscsi_record['scsi_id']
if scsi_id:
saved_HBA_uuid = None
pscsi_uuid = saved_pscsi_table.get(scsi_id, None)
if pscsi_uuid is None:
pscsi_uuid = uuid.createString()
saved_pscsi_table[scsi_id] = pscsi_uuid
else:
try:
saved_HBA_uuid = saved_pscsis[pscsi_uuid].get(
'HBA', None)
except KeyError:
log.warn(
"Multi-path SCSI devices are not supported for XenAPI"
)
return
physical_host = int(
pscsi_record['physical_HCTL'].split(':')[0])
if pscsi_HBA_table.has_key(physical_host):
pscsi_HBA_uuid = pscsi_HBA_table[physical_host]
elif saved_pscsi_HBA_table.has_key(physical_host):
pscsi_HBA_uuid = saved_pscsi_HBA_table[physical_host]
pscsi_HBA_table[physical_host] = pscsi_HBA_uuid
else:
pscsi_HBA_uuid = uuid.createString()
pscsi_HBA_table[physical_host] = pscsi_HBA_uuid
if saved_HBA_uuid is not None and \
saved_HBA_uuid != pscsi_HBA_uuid:
log.debug('The PSCSI(%s) host number was changed', scsi_id)
pscsi_record['HBA'] = pscsi_HBA_uuid
pscsi_table[pscsi_uuid] = pscsi_record
for pscsi_uuid, pscsi_record in pscsi_table.items():
XendPSCSI(pscsi_uuid, pscsi_record)
for physical_host, pscsi_HBA_uuid in pscsi_HBA_table.items():
XendPSCSI_HBA(pscsi_HBA_uuid, {'physical_host': physical_host})
