Example #1
0
    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)
Example #2
0
    def remove_PPCI(self, pci_name):
        # Update lspci info
        PciUtil.create_lspci_info()

        # Remove the PPCI
        (domain, bus, slot, func) = PciUtil.parse_pci_name(pci_name)
        ppci_ref = XendPPCI.get_by_sbdf(domain, bus, slot, func)
        XendAPIStore.get(ppci_ref, "PPCI").destroy()

        self.save_PPCIs()
Example #3
0
    def remove_PPCI(self, pci_name):
        # Update lspci info
        PciUtil.create_lspci_info()

        # Remove the PPCI
        (domain, bus, slot, func) = PciUtil.parse_pci_name(pci_name)
        ppci_ref = XendPPCI.get_by_sbdf(domain, bus, slot, func)
        XendAPIStore.get(ppci_ref, "PPCI").destroy()

        self.save_PPCIs()
Example #4
0
    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()
Example #5
0
 def save_PPCIs(self):
     ppci_records = dict([(ppci_uuid, XendAPIStore.get(
                              ppci_uuid, "PPCI").get_record())
                         for ppci_uuid in XendPPCI.get_all()])
     self.state_store.save_state('ppci', ppci_records)
Example #6
0
 def get_PPCI_refs(self):
     return XendPPCI.get_all()
Example #7
0
 def save_PPCIs(self):
     ppci_records = dict([(ppci_uuid, XendAPIStore.get(ppci_uuid,
                                                       "PPCI").get_record())
                          for ppci_uuid in XendPPCI.get_all()])
     self.state_store.save_state('ppci', ppci_records)
Example #8
0
 def get_PPCI_refs(self):
     return XendPPCI.get_all()
Example #9
0
    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)