1968 lines
65 KiB
Python
1968 lines
65 KiB
Python
# Copyright (C) 2006, 2013, 2014 Red Hat, Inc.
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# Copyright (C) 2006 Daniel P. Berrange <berrange@redhat.com>
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#
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# This work is licensed under the GNU GPLv2 or later.
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# See the COPYING file in the top-level directory.
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import logging
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import os
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import time
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import threading
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import libvirt
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from virtinst import DomainCapabilities
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from virtinst import DomainSnapshot
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from virtinst import Guest
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from virtinst import util
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from virtinst import DeviceController
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from virtinst import DeviceDisk
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from .libvirtobject import vmmLibvirtObject
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from .libvirtenummap import LibvirtEnumMap
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class _SENTINEL(object):
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pass
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def compare_device(origdev, newdev, idx):
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devprops = {
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"disk": ["target", "bus"],
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"interface": ["macaddr", "xmlindex"],
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"input": ["bus", "type", "xmlindex"],
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"sound": ["model", "xmlindex"],
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"video": ["model", "xmlindex"],
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"watchdog": ["xmlindex"],
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"hostdev": ["type", "managed", "xmlindex",
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"product", "vendor",
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"function", "domain", "slot"],
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"serial": ["type", "target_port"],
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"parallel": ["type", "target_port"],
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"console": ["type", "target_type", "target_port"],
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"graphics": ["type", "xmlindex"],
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"controller": ["type", "index"],
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"channel": ["type", "target_name"],
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"filesystem": ["target", "xmlindex"],
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"smartcard": ["mode", "xmlindex"],
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"redirdev": ["bus", "type", "xmlindex"],
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"tpm": ["type", "xmlindex"],
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"rng": ["type", "xmlindex"],
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"panic": ["type", "xmlindex"],
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}
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if id(origdev) == id(newdev):
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return True
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if not isinstance(origdev, type(newdev)):
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return False
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for devprop in devprops[origdev.DEVICE_TYPE]:
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if devprop == "xmlindex":
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origval = origdev.get_xml_idx()
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newval = idx
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else:
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origval = getattr(origdev, devprop)
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newval = getattr(newdev, devprop)
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if origval != newval:
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return False
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return True
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def _find_device(guest, origdev):
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devlist = getattr(guest.devices, origdev.DEVICE_TYPE)
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for idx, dev in enumerate(devlist):
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if compare_device(origdev, dev, idx):
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return dev
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return None
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def start_job_progress_thread(vm, meter, progtext):
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current_thread = threading.currentThread()
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def jobinfo_cb():
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while True:
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time.sleep(.5)
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if not current_thread.isAlive():
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return False
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try:
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jobinfo = vm.job_info()
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data_total = float(jobinfo[3])
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# data_processed = float(jobinfo[4])
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data_remaining = float(jobinfo[5])
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# data_total is 0 if the job hasn't started yet
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if not data_total:
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continue
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if not meter.started:
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meter.start(size=data_total,
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text=progtext)
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progress = data_total - data_remaining
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meter.update(progress)
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except Exception:
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logging.exception("Error calling jobinfo")
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return False
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return True
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if vm.getjobinfo_supported:
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t = threading.Thread(target=jobinfo_cb,
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name="job progress reporting",
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args=())
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t.daemon = True
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t.start()
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class vmmInspectionData(object):
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def __init__(self):
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self.os_type = None
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self.distro = None
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self.major_version = None
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self.minor_version = None
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self.hostname = None
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self.product_name = None
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self.product_variant = None
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self.icon = None
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self.applications = None
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self.errorstr = None
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class vmmDomainSnapshot(vmmLibvirtObject):
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"""
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Class wrapping a virDomainSnapshot object
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"""
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def __init__(self, conn, backend):
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vmmLibvirtObject.__init__(self, conn, backend, backend.getName(),
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DomainSnapshot)
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##########################
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# Required class methods #
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##########################
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def _backend_get_name(self):
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return self._backend.getName()
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def _conn_tick_poll_param(self):
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return None
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def class_name(self):
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return "snapshot"
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def _XMLDesc(self, flags):
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return self._backend.getXMLDesc(flags=flags)
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def _get_backend_status(self):
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return self._STATUS_ACTIVE
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def tick(self, stats_update=True):
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ignore = stats_update
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def _init_libvirt_state(self):
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self.ensure_latest_xml()
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###########
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# Actions #
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###########
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def delete(self, force=True):
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ignore = force
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self._backend.delete()
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def run_status(self):
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status = DomainSnapshot.state_str_to_int(self.get_xmlobj().state)
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return LibvirtEnumMap.pretty_run_status(status, False)
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def run_status_icon_name(self):
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status = DomainSnapshot.state_str_to_int(self.get_xmlobj().state)
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if status not in LibvirtEnumMap.VM_STATUS_ICONS:
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logging.debug("Unknown status %d, using NOSTATE", status)
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status = libvirt.VIR_DOMAIN_NOSTATE
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return LibvirtEnumMap.VM_STATUS_ICONS[status]
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def is_current(self):
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return self._backend.isCurrent()
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def is_external(self):
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if self.get_xmlobj().memory_type == "external":
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return True
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for disk in self.get_xmlobj().disks:
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if disk.snapshot == "external":
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return True
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return False
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class vmmDomain(vmmLibvirtObject):
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"""
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Class wrapping virDomain libvirt objects. Is also extended to be
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backed by a virtinst.Guest object for new VM 'customize before install'
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"""
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__gsignals__ = {
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"resources-sampled": (vmmLibvirtObject.RUN_FIRST, None, []),
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"inspection-changed": (vmmLibvirtObject.RUN_FIRST, None, []),
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"pre-startup": (vmmLibvirtObject.RUN_FIRST, None, [object]),
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}
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def __init__(self, conn, backend, key):
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vmmLibvirtObject.__init__(self, conn, backend, key, Guest)
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self.cloning = False
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self._stats = []
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self._stats_rates = {
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"diskRdRate": 10.0,
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"diskWrRate": 10.0,
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"netTxRate": 10.0,
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"netRxRate": 10.0,
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}
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self._install_abort = False
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self._id = None
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self._uuid = None
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self._has_managed_save = None
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self._snapshot_list = None
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self._autostart = None
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self._domain_caps = None
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self._status_reason = None
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self.managedsave_supported = False
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self.remote_console_supported = False
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self.title_supported = False
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self.mem_stats_supported = False
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self.domain_state_supported = False
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self._enable_mem_stats = False
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self._enable_cpu_stats = False
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self._mem_stats_period_is_set = False
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self._enable_net_poll = False
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self._stats_net_supported = True
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self._stats_net_skip = []
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self._enable_disk_poll = False
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self._stats_disk_supported = True
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self._stats_disk_skip = []
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self._summary_disk_stats_skip = False
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self.inspection = vmmInspectionData()
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def _cleanup(self):
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for snap in self._snapshot_list or []:
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snap.cleanup()
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self._snapshot_list = None
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vmmLibvirtObject._cleanup(self)
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def _init_libvirt_state(self):
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self.managedsave_supported = self.conn.check_support(
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self.conn.SUPPORT_DOMAIN_MANAGED_SAVE, self._backend)
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self.remote_console_supported = self.conn.check_support(
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self.conn.SUPPORT_DOMAIN_CONSOLE_STREAM, self._backend)
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self.title_supported = self.conn.check_support(
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self.conn.SUPPORT_DOMAIN_GET_METADATA, self._backend)
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self.mem_stats_supported = self.conn.check_support(
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self.conn.SUPPORT_DOMAIN_MEMORY_STATS, self._backend)
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self.domain_state_supported = self.conn.check_support(
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self.conn.SUPPORT_DOMAIN_STATE, self._backend)
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# Determine available XML flags (older libvirt versions will error
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# out if passed SECURE_XML, INACTIVE_XML, etc)
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(self._inactive_xml_flags,
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self._active_xml_flags) = self.conn.get_dom_flags(self._backend)
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# This needs to come before initial stats tick
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self._on_config_sample_network_traffic_changed()
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self._on_config_sample_disk_io_changed()
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self._on_config_sample_mem_stats_changed()
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self._on_config_sample_cpu_stats_changed()
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# Prime caches
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info = self._backend.info()
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self._refresh_status(newstatus=info[0])
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self._tick_stats(info)
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self.has_managed_save()
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self.snapshots_supported()
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# Hook up listeners that need to be cleaned up
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self.add_gsettings_handle(
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self.config.on_stats_enable_cpu_poll_changed(
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self._on_config_sample_cpu_stats_changed))
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self.add_gsettings_handle(
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self.config.on_stats_enable_net_poll_changed(
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self._on_config_sample_network_traffic_changed))
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self.add_gsettings_handle(
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self.config.on_stats_enable_disk_poll_changed(
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self._on_config_sample_disk_io_changed))
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self.add_gsettings_handle(
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self.config.on_stats_enable_memory_poll_changed(
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self._on_config_sample_mem_stats_changed))
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if (self.get_name() == "Domain-0" and
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self.get_uuid() == "00000000-0000-0000-0000-000000000000"):
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# We don't want virt-manager to track Domain-0 since it
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# doesn't work with our UI. Raising an error will ensures it
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# is blacklisted.
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raise RuntimeError("Can't track Domain-0 as a vmmDomain")
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self.connect("pre-startup", self._prestartup_nodedev_check)
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def _prestartup_nodedev_check(self, src, ret):
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ignore = src
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error = _("There is more than one '%s' device attached to "
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"your host, and we can't determine which one to "
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"use for your guest.\n"
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"To fix this, remove and reattach the USB device "
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"to your guest using the 'Add Hardware' wizard.")
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for hostdev in self.xmlobj.devices.hostdev:
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devtype = hostdev.type
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if devtype != "usb":
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continue
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vendor = hostdev.vendor
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product = hostdev.product
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bus = hostdev.bus
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device = hostdev.device
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if vendor and product:
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count = self.conn.get_nodedev_count("usb_device",
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vendor,
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product)
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if count > 1 and not (bus and device):
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prettyname = "%s %s" % (vendor, product)
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ret.append(error % prettyname)
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###########################
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# Misc API getter methods #
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###########################
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def reports_stats(self):
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return True
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def _using_events(self):
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return self.conn.using_domain_events
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def get_id(self):
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if self._id is None:
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self._id = self._backend.ID()
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return self._id
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def status(self):
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return self._normalize_status(self._get_status())
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def status_reason(self):
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if self._status_reason is None:
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self._status_reason = 1
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if self.domain_state_supported:
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self._status_reason = self._backend.state()[1]
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return self._status_reason
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def get_cloning(self):
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return self.cloning
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def set_cloning(self, val):
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self.cloning = bool(val)
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# If manual shutdown or destroy specified, make sure we don't continue
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# install process
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def get_install_abort(self):
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return bool(self._install_abort)
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def stable_defaults(self):
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return self.get_xmlobj().stable_defaults()
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def has_spicevmc_type_redirdev(self):
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devs = self.xmlobj.devices.redirdev
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for dev in devs:
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if dev.type == "spicevmc":
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return True
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return False
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def get_id_pretty(self):
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i = self.get_id()
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if i < 0:
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return "-"
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return str(i)
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def has_nvram(self):
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return bool(self.get_xmlobj().os.loader_ro is True and
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self.get_xmlobj().os.loader_type == "pflash")
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def is_persistent(self):
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return bool(self._backend.isPersistent())
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##################
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# Support checks #
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##################
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def _get_getvcpus_supported(self):
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return self.conn.check_support(
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self.conn.SUPPORT_DOMAIN_GETVCPUS, self._backend)
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getvcpus_supported = property(_get_getvcpus_supported)
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def _get_getjobinfo_supported(self):
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return self.conn.check_support(
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self.conn.SUPPORT_DOMAIN_JOB_INFO, self._backend)
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getjobinfo_supported = property(_get_getjobinfo_supported)
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def snapshots_supported(self):
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if not self.conn.check_support(
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self.conn.SUPPORT_DOMAIN_LIST_SNAPSHOTS, self._backend):
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return _("Libvirt connection does not support snapshots.")
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if self.list_snapshots():
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return
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# Check if our disks are all qcow2
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seen_qcow2 = False
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for disk in self.get_disk_devices_norefresh():
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if disk.read_only:
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continue
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if not disk.path:
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continue
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if disk.driver_type == "qcow2":
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seen_qcow2 = True
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continue
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return _("Snapshots are only supported if all writeable disks "
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"images allocated to the guest are qcow2 format.")
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if not seen_qcow2:
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return _("Snapshots require at least one writeable qcow2 disk "
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"image allocated to the guest.")
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def get_domain_capabilities(self):
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if not self._domain_caps:
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self._domain_caps = DomainCapabilities.build_from_guest(
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self.get_xmlobj())
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return self._domain_caps
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#############################
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# Internal XML handling API #
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#############################
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def _invalidate_xml(self):
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vmmLibvirtObject._invalidate_xml(self)
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self._id = None
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self._status_reason = None
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self._has_managed_save = None
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def _lookup_device_to_define(self, xmlobj, origdev, for_hotplug):
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if for_hotplug:
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return origdev
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dev = _find_device(xmlobj, origdev)
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if dev:
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return dev
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# If we are removing multiple dev from an active VM, a double
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# attempt may result in a lookup failure. If device is present
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# in the active XML, assume all is good.
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if _find_device(self.get_xmlobj(), origdev):
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logging.debug("Device in active config but not inactive config.")
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return
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raise RuntimeError(_("Could not find specified device in the "
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"inactive VM configuration: %s") % repr(origdev))
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def _copy_nvram_file(self, new_name):
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"""
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We need to do this copy magic because there is no Libvirt storage API
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to rename storage volume.
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"""
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old_nvram = DeviceDisk(self.conn.get_backend())
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old_nvram.path = self.get_xmlobj().os.nvram
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nvram_dir = os.path.dirname(old_nvram.path)
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new_nvram_path = os.path.join(nvram_dir, "%s_VARS.fd" % new_name)
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new_nvram = DeviceDisk(self.conn.get_backend())
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nvram_install = DeviceDisk.build_vol_install(
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self.conn.get_backend(), os.path.basename(new_nvram_path),
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old_nvram.get_parent_pool(), old_nvram.get_size(), False)
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nvram_install.input_vol = old_nvram.get_vol_object()
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nvram_install.sync_input_vol(only_format=True)
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new_nvram.set_vol_install(nvram_install)
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new_nvram.validate()
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new_nvram.setup()
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return new_nvram, old_nvram
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##############################
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# Persistent XML change APIs #
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##############################
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def rename_domain(self, new_name):
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new_nvram = None
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old_nvram = None
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if self.has_nvram():
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new_nvram, old_nvram = self._copy_nvram_file(new_name)
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try:
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self.define_name(new_name)
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except Exception as error:
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if new_nvram:
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try:
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new_nvram.get_vol_object().delete(0)
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except Exception as warn:
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logging.debug("rename failed and new nvram was not "
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"removed: '%s'", warn)
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raise error
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if new_nvram:
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try:
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old_nvram.get_vol_object().delete(0)
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except Exception as warn:
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logging.debug("old nvram file was not removed: '%s'", warn)
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self.define_overview(nvram=new_nvram.path)
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# Device Add/Remove
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def add_device(self, devobj):
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"""
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Redefine guest with appended device XML 'devxml'
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"""
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xmlobj = self._make_xmlobj_to_define()
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xmlobj.add_device(devobj)
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self._redefine_xmlobj(xmlobj)
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def remove_device(self, devobj):
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"""
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Remove passed device from the inactive guest XML
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"""
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# If serial and duplicate console are both present, they both need
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# to be removed at the same time
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con = None
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if self.serial_is_console_dup(devobj):
|
|
con = self.xmlobj.devices.consoles[0]
|
|
|
|
xmlobj = self._make_xmlobj_to_define()
|
|
editdev = self._lookup_device_to_define(xmlobj, devobj, False)
|
|
if not editdev:
|
|
return
|
|
|
|
if con:
|
|
rmcon = _find_device(xmlobj, con)
|
|
if rmcon:
|
|
xmlobj.remove_device(rmcon)
|
|
xmlobj.remove_device(editdev)
|
|
|
|
self._redefine_xmlobj(xmlobj)
|
|
|
|
def define_cpu(self, vcpus=_SENTINEL, maxvcpus=_SENTINEL,
|
|
model=_SENTINEL, sockets=_SENTINEL,
|
|
cores=_SENTINEL, threads=_SENTINEL):
|
|
guest = self._make_xmlobj_to_define()
|
|
|
|
if vcpus != _SENTINEL:
|
|
guest.curvcpus = int(vcpus)
|
|
if maxvcpus != _SENTINEL:
|
|
guest.vcpus = int(maxvcpus)
|
|
|
|
if sockets != _SENTINEL:
|
|
guest.cpu.sockets = sockets
|
|
guest.cpu.cores = cores
|
|
guest.cpu.threads = threads
|
|
|
|
if model != _SENTINEL:
|
|
if model in guest.cpu.SPECIAL_MODES:
|
|
guest.cpu.set_special_mode(model)
|
|
else:
|
|
guest.cpu.model = model
|
|
self._redefine_xmlobj(guest)
|
|
|
|
def define_memory(self, memory=_SENTINEL, maxmem=_SENTINEL):
|
|
guest = self._make_xmlobj_to_define()
|
|
|
|
if memory != _SENTINEL:
|
|
guest.memory = int(memory)
|
|
if maxmem != _SENTINEL:
|
|
guest.maxmemory = int(maxmem)
|
|
self._redefine_xmlobj(guest)
|
|
|
|
def define_overview(self, machine=_SENTINEL, description=_SENTINEL,
|
|
title=_SENTINEL, idmap_list=_SENTINEL, loader=_SENTINEL,
|
|
nvram=_SENTINEL):
|
|
guest = self._make_xmlobj_to_define()
|
|
if machine != _SENTINEL:
|
|
guest.os.machine = machine
|
|
self._domain_caps = None
|
|
if description != _SENTINEL:
|
|
guest.description = description or None
|
|
if title != _SENTINEL:
|
|
guest.title = title or None
|
|
|
|
if loader != _SENTINEL:
|
|
if loader is None:
|
|
# Implies seabios, aka the default, so clear everything
|
|
guest.os.loader = None
|
|
guest.os.loader_ro = None
|
|
guest.os.loader_type = None
|
|
guest.os.nvram = None
|
|
guest.os.nvram_template = None
|
|
else:
|
|
# Implies UEFI
|
|
guest.os.loader = loader
|
|
guest.os.loader_type = "pflash"
|
|
guest.os.loader_ro = True
|
|
guest.check_uefi_secure()
|
|
|
|
if nvram != _SENTINEL:
|
|
guest.os.nvram = nvram
|
|
|
|
if idmap_list != _SENTINEL:
|
|
if idmap_list is not None:
|
|
# pylint: disable=unpacking-non-sequence
|
|
(uid_target, uid_count, gid_target, gid_count) = idmap_list
|
|
guest.idmap.uid_start = 0
|
|
guest.idmap.uid_target = uid_target
|
|
guest.idmap.uid_count = uid_count
|
|
guest.idmap.gid_start = 0
|
|
guest.idmap.gid_target = gid_target
|
|
guest.idmap.gid_count = gid_count
|
|
else:
|
|
guest.idmap.clear()
|
|
|
|
self._redefine_xmlobj(guest)
|
|
|
|
def define_boot(self, boot_order=_SENTINEL, boot_menu=_SENTINEL,
|
|
kernel=_SENTINEL, initrd=_SENTINEL, dtb=_SENTINEL,
|
|
kernel_args=_SENTINEL, init=_SENTINEL, initargs=_SENTINEL):
|
|
|
|
guest = self._make_xmlobj_to_define()
|
|
def _change_boot_order():
|
|
boot_dev_order = []
|
|
devmap = dict((dev.get_xml_id(), dev) for dev in
|
|
self.get_bootable_devices())
|
|
for b in boot_order:
|
|
if b in devmap:
|
|
boot_dev_order.append(devmap[b])
|
|
|
|
# Unset the traditional boot order
|
|
guest.os.bootorder = []
|
|
|
|
# Unset device boot order
|
|
for dev in guest.devices.get_all():
|
|
dev.boot.order = None
|
|
|
|
count = 1
|
|
for origdev in boot_dev_order:
|
|
dev = self._lookup_device_to_define(guest, origdev, False)
|
|
if not dev:
|
|
continue
|
|
dev.boot.order = count
|
|
count += 1
|
|
|
|
if boot_order != _SENTINEL:
|
|
if self.can_use_device_boot_order():
|
|
_change_boot_order()
|
|
else:
|
|
guest.os.bootorder = boot_order
|
|
|
|
if boot_menu != _SENTINEL:
|
|
guest.os.enable_bootmenu = bool(boot_menu)
|
|
if init != _SENTINEL:
|
|
guest.os.init = init
|
|
guest.os.set_initargs_string(initargs)
|
|
|
|
if kernel != _SENTINEL:
|
|
guest.os.kernel = kernel or None
|
|
if initrd != _SENTINEL:
|
|
guest.os.initrd = initrd or None
|
|
if dtb != _SENTINEL:
|
|
guest.os.dtb = dtb or None
|
|
if kernel_args != _SENTINEL:
|
|
guest.os.kernel_args = kernel_args or None
|
|
|
|
self._redefine_xmlobj(guest)
|
|
|
|
|
|
######################
|
|
# Device XML editing #
|
|
######################
|
|
|
|
def define_disk(self, devobj, do_hotplug,
|
|
path=_SENTINEL, readonly=_SENTINEL, serial=_SENTINEL,
|
|
shareable=_SENTINEL, removable=_SENTINEL, cache=_SENTINEL,
|
|
io=_SENTINEL, driver_type=_SENTINEL, bus=_SENTINEL, addrstr=_SENTINEL,
|
|
sgio=_SENTINEL):
|
|
xmlobj = self._make_xmlobj_to_define()
|
|
editdev = self._lookup_device_to_define(xmlobj, devobj, do_hotplug)
|
|
if not editdev:
|
|
return
|
|
|
|
def _change_bus():
|
|
oldprefix = editdev.get_target_prefix()[0]
|
|
oldbus = editdev.bus
|
|
editdev.bus = bus
|
|
|
|
if oldbus == bus:
|
|
return
|
|
|
|
editdev.address.clear()
|
|
editdev.address.set_addrstr(addrstr)
|
|
|
|
if oldprefix == editdev.get_target_prefix()[0]:
|
|
return
|
|
|
|
used = []
|
|
disks = (self.xmlobj.devices.disk +
|
|
self.get_xmlobj(inactive=True).devices.disk)
|
|
for d in disks:
|
|
used.append(d.target)
|
|
|
|
if editdev.target:
|
|
used.remove(editdev.target)
|
|
|
|
editdev.target = None
|
|
editdev.generate_target(used)
|
|
|
|
if path != _SENTINEL:
|
|
editdev.path = path
|
|
if not do_hotplug:
|
|
editdev.sync_path_props()
|
|
|
|
if readonly != _SENTINEL:
|
|
editdev.read_only = readonly
|
|
if shareable != _SENTINEL:
|
|
editdev.shareable = shareable
|
|
if removable != _SENTINEL:
|
|
editdev.removable = removable
|
|
|
|
if cache != _SENTINEL:
|
|
editdev.driver_cache = cache or None
|
|
if io != _SENTINEL:
|
|
editdev.driver_io = io or None
|
|
if driver_type != _SENTINEL:
|
|
editdev.driver_type = driver_type or None
|
|
if serial != _SENTINEL:
|
|
editdev.serial = serial or None
|
|
|
|
if sgio != _SENTINEL:
|
|
editdev.sgio = sgio or None
|
|
|
|
if bus != _SENTINEL:
|
|
_change_bus()
|
|
|
|
if do_hotplug:
|
|
self.hotplug(device=editdev)
|
|
else:
|
|
self._redefine_xmlobj(xmlobj)
|
|
|
|
def define_network(self, devobj, do_hotplug,
|
|
ntype=_SENTINEL, source=_SENTINEL,
|
|
mode=_SENTINEL, model=_SENTINEL, addrstr=_SENTINEL,
|
|
vtype=_SENTINEL, managerid=_SENTINEL, typeid=_SENTINEL,
|
|
typeidversion=_SENTINEL, instanceid=_SENTINEL,
|
|
portgroup=_SENTINEL, macaddr=_SENTINEL):
|
|
xmlobj = self._make_xmlobj_to_define()
|
|
editdev = self._lookup_device_to_define(xmlobj, devobj, do_hotplug)
|
|
if not editdev:
|
|
return
|
|
|
|
if ntype != _SENTINEL:
|
|
editdev.source = None
|
|
|
|
editdev.type = ntype
|
|
editdev.source = source
|
|
editdev.source_mode = mode or None
|
|
editdev.portgroup = portgroup or None
|
|
|
|
if model != _SENTINEL:
|
|
if editdev.model != model:
|
|
editdev.address.clear()
|
|
editdev.address.set_addrstr(addrstr)
|
|
editdev.model = model
|
|
|
|
if vtype != _SENTINEL:
|
|
editdev.virtualport.type = vtype or None
|
|
editdev.virtualport.managerid = managerid or None
|
|
editdev.virtualport.typeid = typeid or None
|
|
editdev.virtualport.typeidversion = typeidversion or None
|
|
editdev.virtualport.instanceid = instanceid or None
|
|
|
|
if macaddr != _SENTINEL:
|
|
editdev.macaddr = macaddr
|
|
|
|
if do_hotplug:
|
|
self.hotplug(device=editdev)
|
|
else:
|
|
self._redefine_xmlobj(xmlobj)
|
|
|
|
def define_graphics(self, devobj, do_hotplug,
|
|
listen=_SENTINEL, addr=_SENTINEL, port=_SENTINEL, tlsport=_SENTINEL,
|
|
passwd=_SENTINEL, keymap=_SENTINEL, gtype=_SENTINEL,
|
|
gl=_SENTINEL, rendernode=_SENTINEL):
|
|
xmlobj = self._make_xmlobj_to_define()
|
|
editdev = self._lookup_device_to_define(xmlobj, devobj, do_hotplug)
|
|
if not editdev:
|
|
return
|
|
|
|
if addr != _SENTINEL:
|
|
editdev.listen = addr
|
|
if port != _SENTINEL:
|
|
editdev.port = port
|
|
if tlsport != _SENTINEL:
|
|
editdev.tlsPort = tlsport
|
|
if passwd != _SENTINEL:
|
|
editdev.passwd = passwd
|
|
if keymap != _SENTINEL:
|
|
editdev.keymap = keymap
|
|
if gtype != _SENTINEL:
|
|
editdev.type = gtype
|
|
if gl != _SENTINEL:
|
|
editdev.gl = gl
|
|
if rendernode != _SENTINEL:
|
|
editdev.rendernode = rendernode
|
|
if listen != _SENTINEL:
|
|
listentype = editdev.get_first_listen_type()
|
|
if listen == 'none':
|
|
editdev.set_listen_none()
|
|
elif listentype and listentype == 'none':
|
|
editdev.remove_all_listens()
|
|
|
|
if do_hotplug:
|
|
self.hotplug(device=editdev)
|
|
else:
|
|
self._redefine_xmlobj(xmlobj)
|
|
|
|
def define_sound(self, devobj, do_hotplug, model=_SENTINEL):
|
|
xmlobj = self._make_xmlobj_to_define()
|
|
editdev = self._lookup_device_to_define(xmlobj, devobj, do_hotplug)
|
|
if not editdev:
|
|
return
|
|
|
|
if model != _SENTINEL:
|
|
if editdev.model != model:
|
|
editdev.address.clear()
|
|
editdev.model = model
|
|
|
|
if do_hotplug:
|
|
self.hotplug(device=editdev)
|
|
else:
|
|
self._redefine_xmlobj(xmlobj)
|
|
|
|
def define_video(self, devobj, do_hotplug, model=_SENTINEL, accel3d=_SENTINEL):
|
|
xmlobj = self._make_xmlobj_to_define()
|
|
editdev = self._lookup_device_to_define(xmlobj, devobj, do_hotplug)
|
|
if not editdev:
|
|
return
|
|
|
|
if model != _SENTINEL and model != editdev.model:
|
|
editdev.model = model
|
|
editdev.address.clear()
|
|
|
|
# Clear out heads/ram values so they reset to default. If
|
|
# we ever allow editing these values in the UI we should
|
|
# drop this
|
|
editdev.vram = None
|
|
editdev.heads = None
|
|
editdev.ram = None
|
|
editdev.vgamem = None
|
|
editdev.accel3d = None
|
|
|
|
if accel3d != _SENTINEL:
|
|
editdev.accel3d = accel3d
|
|
|
|
if do_hotplug:
|
|
self.hotplug(device=editdev)
|
|
else:
|
|
self._redefine_xmlobj(xmlobj)
|
|
|
|
def define_watchdog(self, devobj, do_hotplug,
|
|
model=_SENTINEL, action=_SENTINEL):
|
|
xmlobj = self._make_xmlobj_to_define()
|
|
editdev = self._lookup_device_to_define(xmlobj, devobj, do_hotplug)
|
|
if not editdev:
|
|
return
|
|
|
|
if model != _SENTINEL:
|
|
if editdev.model != model:
|
|
editdev.address.clear()
|
|
editdev.model = model
|
|
|
|
if action != _SENTINEL:
|
|
editdev.action = action
|
|
|
|
if do_hotplug:
|
|
self.hotplug(device=editdev)
|
|
else:
|
|
self._redefine_xmlobj(xmlobj)
|
|
|
|
def define_smartcard(self, devobj, do_hotplug, model=_SENTINEL):
|
|
xmlobj = self._make_xmlobj_to_define()
|
|
editdev = self._lookup_device_to_define(xmlobj, devobj, do_hotplug)
|
|
if not editdev:
|
|
return
|
|
|
|
if model != _SENTINEL:
|
|
editdev.mode = model
|
|
editdev.type = editdev.TYPE_DEFAULT
|
|
|
|
if do_hotplug:
|
|
self.hotplug(device=editdev)
|
|
else:
|
|
self._redefine_xmlobj(xmlobj)
|
|
|
|
def define_controller(self, devobj, do_hotplug, model=_SENTINEL):
|
|
xmlobj = self._make_xmlobj_to_define()
|
|
editdev = self._lookup_device_to_define(xmlobj, devobj, do_hotplug)
|
|
if not editdev:
|
|
return
|
|
|
|
def _change_model():
|
|
if editdev.type == "usb":
|
|
ctrls = xmlobj.devices.controller
|
|
ctrls = [x for x in ctrls if (x.type ==
|
|
DeviceController.TYPE_USB)]
|
|
for dev in ctrls:
|
|
xmlobj.remove_device(dev)
|
|
|
|
if model == "ich9-ehci1":
|
|
for dev in DeviceController.get_usb2_controllers(
|
|
xmlobj.conn):
|
|
xmlobj.add_device(dev)
|
|
else:
|
|
dev = DeviceController(xmlobj.conn)
|
|
dev.type = "usb"
|
|
dev.model = model
|
|
xmlobj.add_device(dev)
|
|
|
|
else:
|
|
editdev.model = model
|
|
editdev.address.clear()
|
|
self.hotplug(device=editdev)
|
|
|
|
if model != _SENTINEL:
|
|
_change_model()
|
|
|
|
if do_hotplug:
|
|
self.hotplug(device=editdev)
|
|
else:
|
|
self._redefine_xmlobj(xmlobj)
|
|
|
|
def define_filesystem(self, devobj, do_hotplug, newdev=_SENTINEL):
|
|
xmlobj = self._make_xmlobj_to_define()
|
|
editdev = self._lookup_device_to_define(xmlobj, devobj, do_hotplug)
|
|
if not editdev:
|
|
return
|
|
|
|
if newdev != _SENTINEL:
|
|
# pylint: disable=maybe-no-member
|
|
editdev.type = newdev.type
|
|
editdev.accessmode = newdev.accessmode
|
|
editdev.wrpolicy = newdev.wrpolicy
|
|
editdev.driver = newdev.driver
|
|
editdev.format = newdev.format
|
|
editdev.readonly = newdev.readonly
|
|
editdev.units = newdev.units
|
|
editdev.source = newdev.source
|
|
editdev.target = newdev.target
|
|
|
|
if do_hotplug:
|
|
self.hotplug(device=editdev)
|
|
else:
|
|
self._redefine_xmlobj(xmlobj)
|
|
|
|
|
|
def define_hostdev(self, devobj, do_hotplug, rom_bar=_SENTINEL):
|
|
xmlobj = self._make_xmlobj_to_define()
|
|
editdev = self._lookup_device_to_define(xmlobj, devobj, do_hotplug)
|
|
if not editdev:
|
|
return
|
|
|
|
if rom_bar != _SENTINEL:
|
|
editdev.rom_bar = rom_bar
|
|
|
|
if do_hotplug:
|
|
self.hotplug(device=editdev)
|
|
else:
|
|
self._redefine_xmlobj(xmlobj)
|
|
|
|
|
|
####################
|
|
# Hotplug routines #
|
|
####################
|
|
|
|
def attach_device(self, devobj):
|
|
"""
|
|
Hotplug device to running guest
|
|
"""
|
|
if not self.is_active():
|
|
return
|
|
|
|
devxml = devobj.get_xml_config()
|
|
logging.debug("attach_device with xml=\n%s", devxml)
|
|
self._backend.attachDevice(devxml)
|
|
|
|
def detach_device(self, devobj):
|
|
"""
|
|
Hotunplug device from running guest
|
|
"""
|
|
if not self.is_active():
|
|
return
|
|
|
|
devxml = devobj.get_xml_config()
|
|
logging.debug("detach_device with xml=\n%s", devxml)
|
|
self._backend.detachDevice(devxml)
|
|
|
|
def _update_device(self, devobj, flags=None):
|
|
if flags is None:
|
|
flags = getattr(libvirt, "VIR_DOMAIN_DEVICE_MODIFY_LIVE", 1)
|
|
|
|
xml = devobj.get_xml_config()
|
|
logging.debug("update_device with xml=\n%s", xml)
|
|
self._backend.updateDeviceFlags(xml, flags)
|
|
|
|
def hotplug(self, vcpus=_SENTINEL, memory=_SENTINEL, maxmem=_SENTINEL,
|
|
description=_SENTINEL, title=_SENTINEL, device=_SENTINEL):
|
|
if not self.is_active():
|
|
return
|
|
|
|
def _hotplug_memory(val):
|
|
if val != self.get_memory():
|
|
self._backend.setMemory(val)
|
|
def _hotplug_maxmem(val):
|
|
if val != self.maximum_memory():
|
|
self._backend.setMaxMemory(val)
|
|
|
|
def _hotplug_metadata(val, mtype):
|
|
flags = (libvirt.VIR_DOMAIN_AFFECT_LIVE |
|
|
libvirt.VIR_DOMAIN_AFFECT_CONFIG)
|
|
self._backend.setMetadata(mtype, val, None, None, flags)
|
|
|
|
if vcpus != _SENTINEL:
|
|
vcpus = int(vcpus)
|
|
if vcpus != self.vcpu_count():
|
|
self._backend.setVcpus(vcpus)
|
|
|
|
if memory != _SENTINEL:
|
|
logging.info("Hotplugging curmem=%s maxmem=%s for VM '%s'",
|
|
memory, maxmem, self.get_name())
|
|
|
|
actual_cur = self.get_memory()
|
|
if memory:
|
|
if maxmem < actual_cur:
|
|
# Set current first to avoid error
|
|
_hotplug_memory(memory)
|
|
_hotplug_maxmem(maxmem)
|
|
else:
|
|
_hotplug_maxmem(maxmem)
|
|
_hotplug_memory(memory)
|
|
else:
|
|
_hotplug_maxmem(maxmem)
|
|
|
|
if description != _SENTINEL:
|
|
_hotplug_metadata(description,
|
|
libvirt.VIR_DOMAIN_METADATA_DESCRIPTION)
|
|
if title != _SENTINEL:
|
|
_hotplug_metadata(title, libvirt.VIR_DOMAIN_METADATA_TITLE)
|
|
|
|
if device != _SENTINEL:
|
|
self._update_device(device)
|
|
|
|
|
|
########################
|
|
# Libvirt API wrappers #
|
|
########################
|
|
|
|
def _conn_tick_poll_param(self):
|
|
return "pollvm"
|
|
def class_name(self):
|
|
return "domain"
|
|
|
|
def _define(self, xml):
|
|
self.conn.define_domain(xml)
|
|
def _XMLDesc(self, flags):
|
|
return self._backend.XMLDesc(flags)
|
|
def _get_backend_status(self):
|
|
return self._backend.info()[0]
|
|
|
|
def get_autostart(self):
|
|
if self._autostart is None:
|
|
self._autostart = self._backend.autostart()
|
|
return self._autostart
|
|
def set_autostart(self, val):
|
|
self._backend.setAutostart(val)
|
|
|
|
# Recache value
|
|
self._autostart = None
|
|
self.get_autostart()
|
|
|
|
def job_info(self):
|
|
return self._backend.jobInfo()
|
|
def abort_job(self):
|
|
self._backend.abortJob()
|
|
|
|
def open_console(self, devname, stream, flags=0):
|
|
return self._backend.openConsole(devname, stream, flags)
|
|
|
|
def open_graphics_fd(self):
|
|
flags = 0
|
|
|
|
# Ugly workaround for VNC bug where the display cannot be opened
|
|
# if the listen type is "none". This bug was fixed in QEMU-2.9.0.
|
|
graphics = self.xmlobj.devices.graphics[0]
|
|
if (graphics.type == "vnc" and
|
|
graphics.get_first_listen_type() == "none" and
|
|
not self.conn.SUPPORT_CONN_VNC_NONE_AUTH):
|
|
flags = libvirt.VIR_DOMAIN_OPEN_GRAPHICS_SKIPAUTH
|
|
|
|
return self._backend.openGraphicsFD(0, flags)
|
|
|
|
def refresh_snapshots(self):
|
|
self._snapshot_list = None
|
|
|
|
def list_snapshots(self):
|
|
if self._snapshot_list is None:
|
|
newlist = []
|
|
for rawsnap in self._backend.listAllSnapshots():
|
|
obj = vmmDomainSnapshot(self.conn, rawsnap)
|
|
obj.init_libvirt_state()
|
|
newlist.append(obj)
|
|
self._snapshot_list = newlist
|
|
return self._snapshot_list[:]
|
|
|
|
@vmmLibvirtObject.lifecycle_action
|
|
def revert_to_snapshot(self, snap):
|
|
self._backend.revertToSnapshot(snap.get_backend())
|
|
|
|
def create_snapshot(self, xml, redefine=False):
|
|
flags = 0
|
|
if redefine:
|
|
flags = (flags | libvirt.VIR_DOMAIN_SNAPSHOT_CREATE_REDEFINE)
|
|
|
|
if not redefine:
|
|
logging.debug("Creating snapshot flags=%s xml=\n%s", flags, xml)
|
|
self._backend.snapshotCreateXML(xml, flags)
|
|
|
|
|
|
########################
|
|
# XML Parsing routines #
|
|
########################
|
|
|
|
def is_container(self):
|
|
return self.get_xmlobj().os.is_container()
|
|
def is_xenpv(self):
|
|
return self.get_xmlobj().os.is_xenpv()
|
|
def is_hvm(self):
|
|
return self.get_xmlobj().os.is_hvm()
|
|
|
|
def get_uuid(self):
|
|
if self._uuid is None:
|
|
self._uuid = self._backend.UUIDString()
|
|
return self._uuid
|
|
def get_abi_type(self):
|
|
return self.get_xmlobj().os.os_type
|
|
def get_hv_type(self):
|
|
return self.get_xmlobj().type
|
|
def get_pretty_hv_type(self):
|
|
return self.conn.pretty_hv(self.get_abi_type(), self.get_hv_type())
|
|
def get_arch(self):
|
|
return self.get_xmlobj().os.arch
|
|
def get_init(self):
|
|
import pipes
|
|
init = self.get_xmlobj().os.init
|
|
initargs = " ".join(
|
|
[pipes.quote(i.val) for i in self.get_xmlobj().os.initargs])
|
|
return init, initargs
|
|
|
|
def get_emulator(self):
|
|
return self.get_xmlobj().emulator
|
|
def get_machtype(self):
|
|
return self.get_xmlobj().os.machine
|
|
def get_idmap(self):
|
|
return self.get_xmlobj().idmap
|
|
|
|
def get_name_or_title(self):
|
|
title = self.get_title()
|
|
if title:
|
|
return title
|
|
return self.get_name()
|
|
|
|
def get_title(self):
|
|
return self.get_xmlobj().title
|
|
def get_description(self):
|
|
return self.get_xmlobj().description
|
|
|
|
def get_memory(self):
|
|
return int(self.get_xmlobj().memory)
|
|
def maximum_memory(self):
|
|
return int(self.get_xmlobj().maxmemory)
|
|
|
|
def vcpu_count(self):
|
|
return int(self.get_xmlobj().curvcpus or self.get_xmlobj().vcpus)
|
|
def vcpu_max_count(self):
|
|
return int(self.get_xmlobj().vcpus)
|
|
|
|
def get_cpu_config(self):
|
|
return self.get_xmlobj().cpu
|
|
|
|
def _convert_old_boot_order(self):
|
|
boot_order = self._get_old_boot_order()
|
|
ret = []
|
|
disk = None
|
|
cdrom = None
|
|
floppy = None
|
|
net = None
|
|
|
|
for d in self.xmlobj.devices.disk:
|
|
if not cdrom and d.device == "cdrom":
|
|
cdrom = d
|
|
if not floppy and d.device == "floppy":
|
|
floppy = d
|
|
if not disk and d.device not in ["cdrom", "floppy"]:
|
|
disk = d
|
|
if cdrom and disk and floppy:
|
|
break
|
|
|
|
for n in self.xmlobj.devices.interface:
|
|
net = n
|
|
break
|
|
|
|
for b in boot_order:
|
|
if b == "network" and net:
|
|
ret.append(net.get_xml_id())
|
|
if b == "hd" and disk:
|
|
ret.append(disk.get_xml_id())
|
|
if b == "cdrom" and cdrom:
|
|
ret.append(cdrom.get_xml_id())
|
|
if b == "fd" and floppy:
|
|
ret.append(floppy.get_xml_id())
|
|
return ret
|
|
|
|
def _get_device_boot_order(self):
|
|
devs = self.get_bootable_devices()
|
|
order = []
|
|
for dev in devs:
|
|
if not dev.boot.order:
|
|
continue
|
|
order.append((dev.get_xml_id(), dev.boot.order))
|
|
|
|
if not order:
|
|
# No devices individually marked bootable, convert traditional
|
|
# boot XML to fine grained, for the UI.
|
|
return self._convert_old_boot_order()
|
|
|
|
order.sort(key=lambda p: p[1])
|
|
return [p[0] for p in order]
|
|
|
|
def _get_old_boot_order(self):
|
|
return self.get_xmlobj().os.bootorder
|
|
def get_boot_order(self):
|
|
if self.can_use_device_boot_order():
|
|
return self._get_device_boot_order()
|
|
return self._get_old_boot_order()
|
|
def get_boot_menu(self):
|
|
guest = self.get_xmlobj()
|
|
return bool(guest.os.enable_bootmenu)
|
|
def get_boot_kernel_info(self):
|
|
guest = self.get_xmlobj()
|
|
return (guest.os.kernel, guest.os.initrd,
|
|
guest.os.dtb, guest.os.kernel_args)
|
|
|
|
def get_interface_devices_norefresh(self):
|
|
xmlobj = self.get_xmlobj(refresh_if_nec=False)
|
|
return xmlobj.devices.interface
|
|
def get_disk_devices_norefresh(self):
|
|
xmlobj = self.get_xmlobj(refresh_if_nec=False)
|
|
return xmlobj.devices.disk
|
|
|
|
def serial_is_console_dup(self, serial):
|
|
if serial.DEVICE_TYPE != "serial":
|
|
return False
|
|
|
|
consoles = self.xmlobj.devices.console
|
|
if not consoles:
|
|
return False
|
|
|
|
console = consoles[0]
|
|
if (console.type == serial.type and
|
|
(console.target_type is None or console.target_type == "serial")):
|
|
return True
|
|
return False
|
|
|
|
def can_use_device_boot_order(self):
|
|
# Return 'True' if guest can use new style boot device ordering
|
|
return self.conn.check_support(
|
|
self.conn.SUPPORT_CONN_DEVICE_BOOTORDER)
|
|
|
|
def get_bootable_devices(self):
|
|
# redirdev can also be marked bootable, but it should be rarely
|
|
# used and clutters the UI
|
|
devs = (self.xmlobj.devices.disk +
|
|
self.xmlobj.devices.interface +
|
|
self.xmlobj.devices.hostdev)
|
|
return devs
|
|
|
|
def get_serialcon_devices(self):
|
|
return self.xmlobj.devices.serial + self.xmlobj.devices.console
|
|
|
|
############################
|
|
# Domain lifecycle methods #
|
|
############################
|
|
|
|
# All these methods are usually run asynchronously from threads, so
|
|
# let's be extra careful and have anything which might touch UI
|
|
# or GObject.props invoked in an idle callback
|
|
|
|
@vmmLibvirtObject.lifecycle_action
|
|
def shutdown(self):
|
|
self._install_abort = True
|
|
self._backend.shutdown()
|
|
|
|
@vmmLibvirtObject.lifecycle_action
|
|
def reboot(self):
|
|
self._install_abort = True
|
|
self._backend.reboot(0)
|
|
|
|
@vmmLibvirtObject.lifecycle_action
|
|
def destroy(self):
|
|
self._install_abort = True
|
|
self._backend.destroy()
|
|
|
|
@vmmLibvirtObject.lifecycle_action
|
|
def reset(self):
|
|
self._install_abort = True
|
|
self._backend.reset(0)
|
|
|
|
@vmmLibvirtObject.lifecycle_action
|
|
def startup(self):
|
|
if self.get_cloning():
|
|
raise RuntimeError(_("Cannot start guest while cloning "
|
|
"operation in progress"))
|
|
|
|
pre_startup_ret = []
|
|
self.emit("pre-startup", pre_startup_ret)
|
|
|
|
for error in pre_startup_ret:
|
|
raise RuntimeError(error)
|
|
|
|
self._backend.create()
|
|
|
|
@vmmLibvirtObject.lifecycle_action
|
|
def suspend(self):
|
|
self._backend.suspend()
|
|
|
|
@vmmLibvirtObject.lifecycle_action
|
|
def delete(self, force=True):
|
|
"""
|
|
@force: True if we are deleting domain, False if we are renaming domain
|
|
|
|
If the domain is renamed we need to keep the nvram file.
|
|
"""
|
|
flags = 0
|
|
if force:
|
|
flags |= getattr(libvirt,
|
|
"VIR_DOMAIN_UNDEFINE_SNAPSHOTS_METADATA", 0)
|
|
flags |= getattr(libvirt, "VIR_DOMAIN_UNDEFINE_MANAGED_SAVE", 0)
|
|
if self.has_nvram():
|
|
flags |= getattr(libvirt, "VIR_DOMAIN_UNDEFINE_NVRAM", 0)
|
|
else:
|
|
if self.has_nvram():
|
|
flags |= getattr(libvirt, "VIR_DOMAIN_UNDEFINE_KEEP_NVRAM", 0)
|
|
try:
|
|
self._backend.undefineFlags(flags)
|
|
except libvirt.libvirtError:
|
|
logging.exception("libvirt undefineFlags failed, "
|
|
"falling back to old style")
|
|
self._backend.undefine()
|
|
|
|
@vmmLibvirtObject.lifecycle_action
|
|
def resume(self):
|
|
if self.get_cloning():
|
|
raise RuntimeError(_("Cannot resume guest while cloning "
|
|
"operation in progress"))
|
|
self._backend.resume()
|
|
|
|
@vmmLibvirtObject.lifecycle_action
|
|
def save(self, meter=None):
|
|
self._install_abort = True
|
|
|
|
if meter:
|
|
start_job_progress_thread(self, meter, _("Saving domain to disk"))
|
|
|
|
self._backend.managedSave(0)
|
|
|
|
def has_managed_save(self):
|
|
if not self.managedsave_supported:
|
|
return False
|
|
|
|
if self._has_managed_save is None:
|
|
try:
|
|
self._has_managed_save = self._backend.hasManagedSaveImage(0)
|
|
except libvirt.libvirtError as e:
|
|
if not util.exception_is_libvirt_error(e, "VIR_ERR_NO_DOMAIN"):
|
|
raise
|
|
return False
|
|
|
|
return self._has_managed_save
|
|
|
|
def remove_saved_image(self):
|
|
if not self.has_managed_save():
|
|
return
|
|
self._backend.managedSaveRemove(0)
|
|
self._has_managed_save = None
|
|
|
|
|
|
def migrate(self, destconn, dest_uri=None,
|
|
tunnel=False, unsafe=False, temporary=False, meter=None):
|
|
self._install_abort = True
|
|
|
|
flags = 0
|
|
flags |= libvirt.VIR_MIGRATE_LIVE
|
|
|
|
if not temporary:
|
|
flags |= libvirt.VIR_MIGRATE_PERSIST_DEST
|
|
flags |= libvirt.VIR_MIGRATE_UNDEFINE_SOURCE
|
|
|
|
if tunnel:
|
|
flags |= libvirt.VIR_MIGRATE_PEER2PEER
|
|
flags |= libvirt.VIR_MIGRATE_TUNNELLED
|
|
|
|
if unsafe:
|
|
flags |= libvirt.VIR_MIGRATE_UNSAFE
|
|
|
|
libvirt_destconn = destconn.get_backend().get_conn_for_api_arg()
|
|
logging.debug("Migrating: conn=%s flags=%s uri=%s tunnel=%s "
|
|
"unsafe=%s temporary=%s",
|
|
destconn, flags, dest_uri, tunnel, unsafe, temporary)
|
|
|
|
if meter:
|
|
start_job_progress_thread(self, meter, _("Migrating domain"))
|
|
|
|
params = {}
|
|
if dest_uri and not tunnel:
|
|
params[libvirt.VIR_MIGRATE_PARAM_URI] = dest_uri
|
|
|
|
if tunnel:
|
|
self._backend.migrateToURI3(dest_uri, params, flags)
|
|
else:
|
|
self._backend.migrate3(libvirt_destconn, params, flags)
|
|
|
|
# Don't schedule any conn update, migrate dialog handles it for us
|
|
|
|
|
|
#################
|
|
# Stats helpers #
|
|
#################
|
|
|
|
def _sample_cpu_stats(self, info, now):
|
|
if not self._enable_cpu_stats:
|
|
return 0, 0, 0, 0
|
|
if not info:
|
|
info = self._backend.info()
|
|
|
|
prevCpuTime = 0
|
|
prevTimestamp = 0
|
|
cpuTime = 0
|
|
cpuTimeAbs = 0
|
|
pcentHostCpu = 0
|
|
pcentGuestCpu = 0
|
|
|
|
if len(self._stats) > 0:
|
|
prevTimestamp = self._stats[0]["timestamp"]
|
|
prevCpuTime = self._stats[0]["cpuTimeAbs"]
|
|
|
|
if not (info[0] in [libvirt.VIR_DOMAIN_SHUTOFF,
|
|
libvirt.VIR_DOMAIN_CRASHED]):
|
|
guestcpus = info[3]
|
|
cpuTime = info[4] - prevCpuTime
|
|
cpuTimeAbs = info[4]
|
|
hostcpus = self.conn.host_active_processor_count()
|
|
|
|
pcentbase = (((cpuTime) * 100.0) /
|
|
((now - prevTimestamp) * 1000.0 * 1000.0 * 1000.0))
|
|
pcentHostCpu = pcentbase / hostcpus
|
|
# Under RHEL-5.9 using a XEN HV guestcpus can be 0 during shutdown
|
|
# so play safe and check it.
|
|
pcentGuestCpu = guestcpus > 0 and pcentbase / guestcpus or 0
|
|
|
|
pcentHostCpu = max(0.0, min(100.0, pcentHostCpu))
|
|
pcentGuestCpu = max(0.0, min(100.0, pcentGuestCpu))
|
|
|
|
return cpuTime, cpuTimeAbs, pcentHostCpu, pcentGuestCpu
|
|
|
|
def _get_cur_rate(self, what):
|
|
if len(self._stats) > 1:
|
|
ret = (float(self._stats[0][what] -
|
|
self._stats[1][what]) /
|
|
float(self._stats[0]["timestamp"] -
|
|
self._stats[1]["timestamp"]))
|
|
else:
|
|
ret = 0.0
|
|
return max(ret, 0, 0) # avoid negative values at poweroff
|
|
|
|
def _set_max_rate(self, record, what):
|
|
if record[what] > self._stats_rates[what]:
|
|
self._stats_rates[what] = record[what]
|
|
def _get_max_rate(self, name1, name2):
|
|
return float(max(self._stats_rates[name1], self._stats_rates[name2]))
|
|
|
|
def _get_record_helper(self, record_name):
|
|
if len(self._stats) == 0:
|
|
return 0
|
|
return self._stats[0][record_name]
|
|
|
|
def _vector_helper(self, record_name, limit, ceil=100.0):
|
|
vector = []
|
|
statslen = self.config.get_stats_history_length() + 1
|
|
if limit is not None:
|
|
statslen = min(statslen, limit)
|
|
|
|
for i in range(statslen):
|
|
if i < len(self._stats):
|
|
vector.append(self._stats[i][record_name] / ceil)
|
|
else:
|
|
vector.append(0)
|
|
|
|
return vector
|
|
|
|
def _in_out_vector_helper(self, name1, name2, limit, ceil):
|
|
if ceil is None:
|
|
ceil = self._get_max_rate(name1, name2)
|
|
|
|
return (self._vector_helper(name1, limit, ceil=ceil),
|
|
self._vector_helper(name2, limit, ceil=ceil))
|
|
|
|
|
|
###################
|
|
# Stats accessors #
|
|
###################
|
|
|
|
def stats_memory(self):
|
|
return self._get_record_helper("curmem")
|
|
def cpu_time(self):
|
|
return self._get_record_helper("cpuTime")
|
|
def host_cpu_time_percentage(self):
|
|
return self._get_record_helper("cpuHostPercent")
|
|
def guest_cpu_time_percentage(self):
|
|
return self._get_record_helper("cpuGuestPercent")
|
|
def network_rx_rate(self):
|
|
return self._get_record_helper("netRxRate")
|
|
def network_tx_rate(self):
|
|
return self._get_record_helper("netTxRate")
|
|
def disk_read_rate(self):
|
|
return self._get_record_helper("diskRdRate")
|
|
def disk_write_rate(self):
|
|
return self._get_record_helper("diskWrRate")
|
|
|
|
def network_traffic_rate(self):
|
|
return self.network_tx_rate() + self.network_rx_rate()
|
|
def network_traffic_max_rate(self):
|
|
return self._get_max_rate("netRxRate", "netTxRate")
|
|
def disk_io_rate(self):
|
|
return self.disk_read_rate() + self.disk_write_rate()
|
|
def disk_io_max_rate(self):
|
|
return self._get_max_rate("diskRdRate", "diskWrRate")
|
|
|
|
def host_cpu_time_vector(self, limit=None):
|
|
return self._vector_helper("cpuHostPercent", limit)
|
|
def guest_cpu_time_vector(self, limit=None):
|
|
return self._vector_helper("cpuGuestPercent", limit)
|
|
def stats_memory_vector(self, limit=None):
|
|
return self._vector_helper("currMemPercent", limit)
|
|
def network_traffic_vectors(self, limit=None, ceil=None):
|
|
return self._in_out_vector_helper(
|
|
"netRxRate", "netTxRate", limit, ceil)
|
|
def disk_io_vectors(self, limit=None, ceil=None):
|
|
return self._in_out_vector_helper(
|
|
"diskRdRate", "diskWrRate", limit, ceil)
|
|
|
|
|
|
###################
|
|
# Status helpers ##
|
|
###################
|
|
|
|
def _normalize_status(self, status):
|
|
if status == libvirt.VIR_DOMAIN_NOSTATE:
|
|
return libvirt.VIR_DOMAIN_RUNNING
|
|
elif status == libvirt.VIR_DOMAIN_BLOCKED:
|
|
return libvirt.VIR_DOMAIN_RUNNING
|
|
return status
|
|
|
|
def is_active(self):
|
|
return not self.is_shutoff()
|
|
def is_shutoff(self):
|
|
return self.status() == libvirt.VIR_DOMAIN_SHUTOFF
|
|
def is_crashed(self):
|
|
return self.status() == libvirt.VIR_DOMAIN_CRASHED
|
|
def is_stoppable(self):
|
|
return self.status() in [libvirt.VIR_DOMAIN_RUNNING,
|
|
libvirt.VIR_DOMAIN_PAUSED,
|
|
libvirt.VIR_DOMAIN_CRASHED,
|
|
libvirt.VIR_DOMAIN_PMSUSPENDED]
|
|
def is_destroyable(self):
|
|
return (self.is_stoppable() or
|
|
self.status() in [libvirt.VIR_DOMAIN_CRASHED])
|
|
def is_runable(self):
|
|
return self.is_shutoff()
|
|
def is_pauseable(self):
|
|
return self.status() in [libvirt.VIR_DOMAIN_RUNNING]
|
|
def is_unpauseable(self):
|
|
return self.status() in [libvirt.VIR_DOMAIN_PAUSED]
|
|
def is_paused(self):
|
|
return self.status() in [libvirt.VIR_DOMAIN_PAUSED]
|
|
def is_clonable(self):
|
|
return self.status() in [libvirt.VIR_DOMAIN_SHUTOFF,
|
|
libvirt.VIR_DOMAIN_PAUSED,
|
|
libvirt.VIR_DOMAIN_PMSUSPENDED]
|
|
|
|
def run_status(self):
|
|
return LibvirtEnumMap.pretty_run_status(
|
|
self.status(), self.has_managed_save())
|
|
|
|
def run_status_reason(self):
|
|
return LibvirtEnumMap.pretty_status_reason(
|
|
self.status(), self.status_reason())
|
|
|
|
def run_status_icon_name(self):
|
|
status = self.status()
|
|
if status not in LibvirtEnumMap.VM_STATUS_ICONS:
|
|
logging.debug("Unknown status %s, using NOSTATE", status)
|
|
status = libvirt.VIR_DOMAIN_NOSTATE
|
|
return LibvirtEnumMap.VM_STATUS_ICONS[status]
|
|
|
|
def inspection_data_updated(self):
|
|
self.idle_emit("inspection-changed")
|
|
|
|
|
|
##################
|
|
# config helpers #
|
|
##################
|
|
|
|
def on_console_scaling_changed(self, *args, **kwargs):
|
|
return self.config.listen_pervm(self.get_uuid(), "/scaling",
|
|
*args, **kwargs)
|
|
def set_console_scaling(self, value):
|
|
self.config.set_pervm(self.get_uuid(), "/scaling", value)
|
|
def get_console_scaling(self):
|
|
ret = self.config.get_pervm(self.get_uuid(), "/scaling")
|
|
if ret == -1:
|
|
return self.config.get_console_scaling()
|
|
return ret
|
|
|
|
def on_console_resizeguest_changed(self, *args, **kwargs):
|
|
return self.config.listen_pervm(self.get_uuid(), "/resize-guest",
|
|
*args, **kwargs)
|
|
def set_console_resizeguest(self, value):
|
|
self.config.set_pervm(self.get_uuid(), "/resize-guest", value)
|
|
def get_console_resizeguest(self):
|
|
ret = self.config.get_pervm(self.get_uuid(), "/resize-guest")
|
|
if ret == -1:
|
|
return self.config.get_console_resizeguest()
|
|
return ret
|
|
|
|
def set_details_window_size(self, w, h):
|
|
self.config.set_pervm(self.get_uuid(), "/vm-window-size", (w, h))
|
|
def get_details_window_size(self):
|
|
ret = self.config.get_pervm(self.get_uuid(), "/vm-window-size")
|
|
return ret
|
|
|
|
def get_console_password(self):
|
|
return self.config.get_pervm(self.get_uuid(), "/console-password")
|
|
def set_console_password(self, username, keyid):
|
|
return self.config.set_pervm(self.get_uuid(), "/console-password",
|
|
(username, keyid))
|
|
def del_console_password(self):
|
|
return self.config.set_pervm(self.get_uuid(), "/console-password",
|
|
("", -1))
|
|
|
|
|
|
def _on_config_sample_network_traffic_changed(self, ignore=None):
|
|
self._enable_net_poll = self.config.get_stats_enable_net_poll()
|
|
def _on_config_sample_disk_io_changed(self, ignore=None):
|
|
self._enable_disk_poll = self.config.get_stats_enable_disk_poll()
|
|
def _on_config_sample_mem_stats_changed(self, ignore=None):
|
|
self._enable_mem_stats = self.config.get_stats_enable_memory_poll()
|
|
def _on_config_sample_cpu_stats_changed(self, ignore=None):
|
|
self._enable_cpu_stats = self.config.get_stats_enable_cpu_poll()
|
|
|
|
def get_cache_dir(self):
|
|
ret = os.path.join(self.conn.get_cache_dir(), self.get_uuid())
|
|
if not os.path.exists(ret):
|
|
os.makedirs(ret, 0o755)
|
|
return ret
|
|
|
|
|
|
###################
|
|
# Polling helpers #
|
|
###################
|
|
|
|
def _sample_network_traffic(self):
|
|
rx = 0
|
|
tx = 0
|
|
if (not self._stats_net_supported or
|
|
not self._enable_net_poll or
|
|
not self.is_active()):
|
|
self._stats_net_skip = []
|
|
return rx, tx
|
|
|
|
for netdev in self.get_interface_devices_norefresh():
|
|
dev = netdev.target_dev
|
|
if not dev:
|
|
continue
|
|
|
|
if dev in self._stats_net_skip:
|
|
continue
|
|
|
|
try:
|
|
io = self._backend.interfaceStats(dev)
|
|
if io:
|
|
rx += io[0]
|
|
tx += io[4]
|
|
except libvirt.libvirtError as err:
|
|
if util.is_error_nosupport(err):
|
|
logging.debug("Net stats not supported: %s", err)
|
|
self._stats_net_supported = False
|
|
else:
|
|
logging.error("Error reading net stats for "
|
|
"'%s' dev '%s': %s",
|
|
self.get_name(), dev, err)
|
|
if self.is_active():
|
|
logging.debug("Adding %s to skip list", dev)
|
|
self._stats_net_skip.append(dev)
|
|
else:
|
|
logging.debug("Aren't running, don't add to skiplist")
|
|
|
|
return rx, tx
|
|
|
|
def _sample_disk_io(self):
|
|
rd = 0
|
|
wr = 0
|
|
if (not self._stats_disk_supported or
|
|
not self._enable_disk_poll or
|
|
not self.is_active()):
|
|
self._stats_disk_skip = []
|
|
return rd, wr
|
|
|
|
# Some drivers support this method for getting all usage at once
|
|
if not self._summary_disk_stats_skip:
|
|
try:
|
|
io = self._backend.blockStats('')
|
|
if io:
|
|
rd = io[1]
|
|
wr = io[3]
|
|
return rd, wr
|
|
except libvirt.libvirtError:
|
|
self._summary_disk_stats_skip = True
|
|
|
|
# did not work, iterate over all disks
|
|
for disk in self.get_disk_devices_norefresh():
|
|
dev = disk.target
|
|
if not dev:
|
|
continue
|
|
|
|
if dev in self._stats_disk_skip:
|
|
continue
|
|
|
|
try:
|
|
io = self._backend.blockStats(dev)
|
|
if io:
|
|
rd += io[1]
|
|
wr += io[3]
|
|
except libvirt.libvirtError as err:
|
|
if util.is_error_nosupport(err):
|
|
logging.debug("Disk stats not supported: %s", err)
|
|
self._stats_disk_supported = False
|
|
else:
|
|
logging.error("Error reading disk stats for "
|
|
"'%s' dev '%s': %s",
|
|
self.get_name(), dev, err)
|
|
if self.is_active():
|
|
logging.debug("Adding %s to skip list", dev)
|
|
self._stats_disk_skip.append(dev)
|
|
else:
|
|
logging.debug("Aren't running, don't add to skiplist")
|
|
|
|
return rd, wr
|
|
|
|
def _set_mem_stats_period(self):
|
|
# QEMU requires we explicitly enable memory stats polling per VM
|
|
# if we wan't fine grained memory stats
|
|
if not self.conn.check_support(
|
|
self.conn.SUPPORT_CONN_MEM_STATS_PERIOD):
|
|
return
|
|
|
|
# Only works for virtio balloon
|
|
if not any([b for b in self.get_xmlobj().devices.memballoon if
|
|
b.model == "virtio"]):
|
|
return
|
|
|
|
try:
|
|
secs = 5
|
|
self._backend.setMemoryStatsPeriod(secs,
|
|
libvirt.VIR_DOMAIN_AFFECT_LIVE)
|
|
except Exception as e:
|
|
logging.debug("Error setting memstats period: %s", e)
|
|
|
|
def _sample_mem_stats(self):
|
|
if (not self.mem_stats_supported or
|
|
not self._enable_mem_stats or
|
|
not self.is_active()):
|
|
self._mem_stats_period_is_set = False
|
|
return 0, 0
|
|
|
|
if self._mem_stats_period_is_set is False:
|
|
self._set_mem_stats_period()
|
|
self._mem_stats_period_is_set = True
|
|
|
|
curmem = 0
|
|
totalmem = 1
|
|
try:
|
|
stats = self._backend.memoryStats()
|
|
totalmem = stats.get("actual", 1)
|
|
curmem = stats.get("rss", 0)
|
|
|
|
if "unused" in stats:
|
|
curmem = max(0, totalmem - stats.get("unused", totalmem))
|
|
except libvirt.libvirtError as err:
|
|
logging.error("Error reading mem stats: %s", err)
|
|
|
|
pcentCurrMem = (curmem / float(totalmem)) * 100
|
|
pcentCurrMem = max(0.0, min(pcentCurrMem, 100.0))
|
|
|
|
return pcentCurrMem, curmem
|
|
|
|
|
|
def tick(self, stats_update=True):
|
|
if (not self._using_events() and
|
|
not stats_update):
|
|
return
|
|
|
|
info = []
|
|
dosignal = False
|
|
if not self._using_events():
|
|
# For domains it's pretty important that we are always using
|
|
# the latest XML, but other objects probably don't want to do
|
|
# this since it could be a performance hit.
|
|
self._invalidate_xml()
|
|
info = self._backend.info()
|
|
dosignal = self._refresh_status(newstatus=info[0], cansignal=False)
|
|
|
|
if stats_update:
|
|
self._tick_stats(info)
|
|
if dosignal:
|
|
self.idle_emit("state-changed")
|
|
if stats_update:
|
|
self.idle_emit("resources-sampled")
|
|
|
|
def _tick_stats(self, info):
|
|
expected = self.config.get_stats_history_length()
|
|
current = len(self._stats)
|
|
if current > expected:
|
|
del self._stats[expected:current]
|
|
|
|
now = time.time()
|
|
(cpuTime, cpuTimeAbs,
|
|
pcentHostCpu, pcentGuestCpu) = self._sample_cpu_stats(info, now)
|
|
pcentCurrMem, curmem = self._sample_mem_stats()
|
|
rdBytes, wrBytes = self._sample_disk_io()
|
|
rxBytes, txBytes = self._sample_network_traffic()
|
|
|
|
newStats = {
|
|
"timestamp": now,
|
|
"cpuTime": cpuTime,
|
|
"cpuTimeAbs": cpuTimeAbs,
|
|
"cpuHostPercent": pcentHostCpu,
|
|
"cpuGuestPercent": pcentGuestCpu,
|
|
"curmem": curmem,
|
|
"currMemPercent": pcentCurrMem,
|
|
"diskRdKiB": rdBytes // 1024,
|
|
"diskWrKiB": wrBytes // 1024,
|
|
"netRxKiB": rxBytes // 1024,
|
|
"netTxKiB": txBytes // 1024,
|
|
}
|
|
|
|
for r in ["diskRd", "diskWr", "netRx", "netTx"]:
|
|
newStats[r + "Rate"] = self._get_cur_rate(r + "KiB")
|
|
self._set_max_rate(newStats, r + "Rate")
|
|
|
|
self._stats.insert(0, newStats)
|
|
|
|
|
|
########################
|
|
# Libvirt domain class #
|
|
########################
|
|
|
|
class vmmDomainVirtinst(vmmDomain):
|
|
"""
|
|
Domain object backed by a virtinst Guest object.
|
|
|
|
Used for launching a details window for customizing a VM before install.
|
|
"""
|
|
def __init__(self, conn, backend, key):
|
|
vmmDomain.__init__(self, conn, backend, key)
|
|
self._orig_xml = None
|
|
|
|
# This encodes all the virtinst defaults up front, so the customize
|
|
# dialog actually shows disk buses, cache values, default devices, etc.
|
|
backend.set_install_defaults()
|
|
|
|
self.title_supported = True
|
|
self._refresh_status()
|
|
logging.debug("%s initialized with XML=\n%s", self, self._XMLDesc(0))
|
|
|
|
def get_name(self):
|
|
return self._backend.name
|
|
def get_uuid(self):
|
|
return self._backend.uuid
|
|
def get_id(self):
|
|
return -1
|
|
def has_managed_save(self):
|
|
return False
|
|
|
|
def snapshots_supported(self):
|
|
return False
|
|
|
|
def get_autostart(self):
|
|
return self._backend.autostart
|
|
def set_autostart(self, val):
|
|
self._backend.autostart = bool(val)
|
|
self.emit("state-changed")
|
|
|
|
def _using_events(self):
|
|
return False
|
|
def _get_backend_status(self):
|
|
return libvirt.VIR_DOMAIN_SHUTOFF
|
|
def _init_libvirt_state(self):
|
|
pass
|
|
|
|
def tick(self, stats_update=True):
|
|
ignore = stats_update
|
|
|
|
|
|
################
|
|
# XML handling #
|
|
################
|
|
|
|
def define_name(self, newname):
|
|
# We need to overwrite this, since the implementation for libvirt
|
|
# needs to do some crazy stuff.
|
|
xmlobj = self._make_xmlobj_to_define()
|
|
xmlobj.name = str(newname)
|
|
self._redefine_xmlobj(xmlobj)
|
|
|
|
def _XMLDesc(self, flags):
|
|
ignore = flags
|
|
return self._backend.get_xml_config()
|
|
|
|
def _define(self, xml):
|
|
ignore = xml
|
|
self.emit("state-changed")
|
|
|
|
def _invalidate_xml(self):
|
|
vmmDomain._invalidate_xml(self)
|
|
self._orig_xml = None
|
|
|
|
def _make_xmlobj_to_define(self):
|
|
if not self._orig_xml:
|
|
self._orig_xml = self._backend.get_xml_config()
|
|
return self._backend
|
|
|
|
def _redefine_xmlobj(self, xmlobj, origxml=None):
|
|
vmmDomain._redefine_xmlobj(self, xmlobj, origxml=self._orig_xml)
|