mirror of
https://github.com/virt-manager/virt-manager.git
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111 lines
4.0 KiB
Python
111 lines
4.0 KiB
Python
#
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# Copyright 2009 Red Hat, Inc.
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# Cole Robinson <crobinso@redhat.com>
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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# MA 02110-1301 USA.
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from virtinst import VirtualDevice
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from virtinst import NodeDeviceParser
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from virtinst.xmlbuilder import XMLProperty
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class VirtualHostDevice(VirtualDevice):
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virtual_device_type = VirtualDevice.VIRTUAL_DEV_HOSTDEV
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@staticmethod
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def device_from_node(conn, name=None, nodedev=None, is_dup=False,
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dev=None):
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"""
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Convert the passed device name to a VirtualHostDevice
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instance, with proper error reporting. Name can be any of the
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values accepted by NodeDeviceParser.lookupNodeName. If a node
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device name is not specified, a virtinst.NodeDevice instance can
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be passed in to create a dev from.
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@param conn: libvirt.virConnect instance to perform the lookup on
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@param name: optional libvirt node device name to lookup
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@param nodedev: optional L{virtinst.NodeDevice} instance to use
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@rtype: L{virtinst.VirtualHostDevice} instance
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"""
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if not name and not nodedev:
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raise ValueError("'name' or 'nodedev' required.")
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if nodedev:
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nodeinst = nodedev
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else:
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nodeinst, addr_type = NodeDeviceParser.lookupNodeName(conn, name)
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if addr_type == NodeDeviceParser.HOSTDEV_ADDR_TYPE_USB_BUSADDR:
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is_dup = True
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if isinstance(nodeinst, NodeDeviceParser.NetDevice):
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parentname = nodeinst.parent
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return VirtualHostDevice.device_from_node(conn,
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name=parentname)
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if not dev:
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dev = VirtualHostDevice(conn)
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dev.set_from_nodedev(nodeinst, is_dup)
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return dev
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def set_from_nodedev(self, nodedev, is_dup=False):
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if isinstance(nodedev, NodeDeviceParser.PCIDevice):
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self.type = "pci"
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self.domain = nodedev.domain
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self.bus = nodedev.bus
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self.slot = nodedev.slot
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self.function = nodedev.function
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elif isinstance(nodedev, NodeDeviceParser.USBDevice):
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self.type = "usb"
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self.vendor = nodedev.vendor_id
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self.product = nodedev.product_id
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if is_dup:
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self.bus = nodedev.bus
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self.device = nodedev.device
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else:
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raise ValueError("Unknown node device type %s" % nodedev)
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_XML_PROP_ORDER = ["mode", "type", "managed", "vendor", "product",
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"domain", "bus", "slot", "function"]
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mode = XMLProperty("./@mode", default_cb=lambda s: "subsystem")
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type = XMLProperty("./@type")
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def _get_default_managed(self):
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return self.conn.is_xen() and "no" or "yes"
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managed = XMLProperty("./@managed", is_yesno=True,
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default_cb=_get_default_managed)
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vendor = XMLProperty("./source/vendor/@id")
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product = XMLProperty("./source/product/@id")
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device = XMLProperty("./source/address/@device")
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bus = XMLProperty("./source/address/@bus")
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def _get_default_domain(self):
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if self.type == "pci":
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return "0x0"
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return None
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domain = XMLProperty("./source/address/@domain",
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default_cb=_get_default_domain)
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function = XMLProperty("./source/address/@function")
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slot = XMLProperty("./source/address/@slot")
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VirtualHostDevice.register_type()
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