def device_from_node(conn, name=None, nodedev=None, is_dup=False, dev=None):
"""
Convert the passed device name to a VirtualHostDevice
instance, with proper error reporting. Name can be any of the
values accepted by NodeDeviceParser.lookupNodeName. If a node
device name is not specified, a virtinst.NodeDevice instance can
be passed in to create a dev from.
@param conn: libvirt.virConnect instance to perform the lookup on
@param name: optional libvirt node device name to lookup
@param nodedev: optional L{virtinst.NodeDevice} instance to use
@rtype: L{virtinst.VirtualHostDevice} instance
"""
if not name and not nodedev:
raise ValueError("'name' or 'nodedev' required.")
if nodedev:
nodeinst = nodedev
else:
nodeinst, addr_type = NodeDeviceParser.lookupNodeName(conn, name)
if addr_type == NodeDeviceParser.HOSTDEV_ADDR_TYPE_USB_BUSADDR:
is_dup = True
if isinstance(nodeinst, NodeDeviceParser.NetDevice):
parentname = nodeinst.parent
return VirtualHostDevice.device_from_node(conn, name=parentname)
if not dev:
dev = VirtualHostDevice(conn)
dev.set_from_nodedev(nodeinst, is_dup)
return dev
def _testCompare(self, devname, vals, devxml=None):
if devxml:
dev = nodeparse.parse(devxml)
else:
dev = self._nodeDevFromName(devname)
for attr in vals.keys():
self.assertEqual(vals[attr], getattr(dev, attr))
def _testCompare(self, devname, vals, devxml=None):
if devxml:
dev = nodeparse.parse(devxml)
else:
dev = self._nodeDevFromName(devname)
for attr in vals.keys():
self.assertEqual(vals[attr], getattr(dev, attr))
def device_from_node(conn, name=None, nodedev=None, is_dup=False):
"""
Convert the passed device name to a VirtualHostDevice
instance, with proper error reporting. Name can be any of the
values accepted by NodeDeviceParser.lookupNodeName. If a node
device name is not specified, a virtinst.NodeDevice instance can
be passed in to create a dev from.
@param conn: libvirt.virConnect instance to perform the lookup on
@param name: optional libvirt node device name to lookup
@param nodedev: optional L{virtinst.NodeDevice} instance to use
@rtype: L{virtinst.VirtualHostDevice} instance
"""
if not name and not nodedev:
raise ValueError(_("'name' or 'nodedev' required."))
if nodedev:
nodeinst = nodedev
else:
nodeinst, addr_type = NodeDeviceParser.lookupNodeName(conn, name)
if addr_type == NodeDeviceParser.HOSTDEV_ADDR_TYPE_USB_BUSADDR:
is_dup = True
if isinstance(nodeinst, NodeDeviceParser.PCIDevice):
return VirtualHostDevicePCI(conn, nodedev=nodeinst)
elif isinstance(nodeinst, NodeDeviceParser.USBDevice):
return VirtualHostDeviceUSB(conn, nodedev=nodeinst, is_dup=is_dup)
elif isinstance(nodeinst, NodeDeviceParser.NetDevice):
parentname = nodeinst.parent
try:
return VirtualHostDevice.device_from_node(conn,
name=parentname)
except:
logging.exception("Fetching net parent device failed.")
raise ValueError(
_("Node device type '%s' cannot be attached to "
" guest.") % nodeinst.device_type)
def device_from_node(conn, name=None, nodedev=None, is_dup=False):
"""
Convert the passed device name to a VirtualHostDevice
instance, with proper error reporting. Name can be any of the
values accepted by NodeDeviceParser.lookupNodeName. If a node
device name is not specified, a virtinst.NodeDevice instance can
be passed in to create a dev from.
@param conn: libvirt.virConnect instance to perform the lookup on
@param name: optional libvirt node device name to lookup
@param nodedev: optional L{virtinst.NodeDevice} instance to use
@rtype: L{virtinst.VirtualHostDevice} instance
"""
if not name and not nodedev:
raise ValueError(_("'name' or 'nodedev' required."))
if nodedev:
nodeinst = nodedev
else:
nodeinst, addr_type = NodeDeviceParser.lookupNodeName(conn, name)
if addr_type == NodeDeviceParser.HOSTDEV_ADDR_TYPE_USB_BUSADDR:
is_dup = True
if isinstance(nodeinst, NodeDeviceParser.PCIDevice):
return VirtualHostDevicePCI(conn, nodedev=nodeinst)
elif isinstance(nodeinst, NodeDeviceParser.USBDevice):
return VirtualHostDeviceUSB(conn, nodedev=nodeinst, is_dup=is_dup)
elif isinstance(nodeinst, NodeDeviceParser.NetDevice):
parentname = nodeinst.parent
try:
return VirtualHostDevice.device_from_node(conn,
name=parentname)
except:
logging.exception("Fetching net parent device failed.")
raise ValueError(_("Node device type '%s' cannot be attached to "
" guest.") % nodeinst.device_type)
def _nodeDevFromName(self, devname):
node = conn.nodeDeviceLookupByName(devname)
xml = node.XMLDesc(0)
return nodeparse.parse(xml)
def _nodeDevFromName(self, devname):
node = conn.nodeDeviceLookupByName(devname)
xml = node.XMLDesc(0)
return nodeparse.parse(xml)
