mirror of
https://github.com/virt-manager/virt-manager.git
synced 2024-10-27 01:55:20 +03:00
519fed3b91
The way we set controller_model earlier, means all the virtio-scsi allocation code is essentially never set. That code does still fix a valid case of when trying to add a scsi device when there isn't any remaining slots open, but that should be rare enough that I'm fine telling the user to edit manually set up a controller themselves first. Signed-off-by: Cole Robinson <crobinso@redhat.com>
1035 lines
35 KiB
Python
1035 lines
35 KiB
Python
#
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# Common code for all guests
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#
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# Copyright 2006-2009, 2013, 2014, 2015 Red Hat, Inc.
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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 random
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from . import generatename
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from . import xmlutil
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from .buildconfig import BuildConfig
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from .devices import * # pylint: disable=wildcard-import
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from .domain import * # pylint: disable=wildcard-import
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from .domcapabilities import DomainCapabilities
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from .logger import log
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from .osdict import OSDB
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from .xmlbuilder import XMLBuilder, XMLProperty, XMLChildProperty
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_ignore = Device
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class _DomainDevices(XMLBuilder):
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XML_NAME = "devices"
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_XML_PROP_ORDER = ['disk', 'controller', 'filesystem', 'interface',
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'smartcard', 'serial', 'parallel', 'console', 'channel',
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'input', 'tpm', 'graphics', 'sound', 'video', 'hostdev',
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'redirdev', 'watchdog', 'memballoon', 'rng', 'panic',
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'memory', 'vsock']
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disk = XMLChildProperty(DeviceDisk)
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controller = XMLChildProperty(DeviceController)
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filesystem = XMLChildProperty(DeviceFilesystem)
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interface = XMLChildProperty(DeviceInterface)
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smartcard = XMLChildProperty(DeviceSmartcard)
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serial = XMLChildProperty(DeviceSerial)
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parallel = XMLChildProperty(DeviceParallel)
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console = XMLChildProperty(DeviceConsole)
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channel = XMLChildProperty(DeviceChannel)
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input = XMLChildProperty(DeviceInput)
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tpm = XMLChildProperty(DeviceTpm)
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graphics = XMLChildProperty(DeviceGraphics)
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sound = XMLChildProperty(DeviceSound)
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video = XMLChildProperty(DeviceVideo)
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hostdev = XMLChildProperty(DeviceHostdev)
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redirdev = XMLChildProperty(DeviceRedirdev)
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watchdog = XMLChildProperty(DeviceWatchdog)
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memballoon = XMLChildProperty(DeviceMemballoon)
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rng = XMLChildProperty(DeviceRng)
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panic = XMLChildProperty(DevicePanic)
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memory = XMLChildProperty(DeviceMemory)
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vsock = XMLChildProperty(DeviceVsock)
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def get_all(self):
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retlist = []
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# pylint: disable=protected-access
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devtypes = _DomainDevices._XML_PROP_ORDER
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for devtype in devtypes:
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retlist.extend(getattr(self, devtype))
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return retlist
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class _IOThreadID(XMLBuilder):
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XML_NAME = "iothread"
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_XML_PROP_ORDER = ["id"]
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id = XMLProperty("./@id", is_int=True)
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class Guest(XMLBuilder):
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@staticmethod
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def validate_name(conn, name, check_collision=True, validate=True):
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if validate:
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XMLBuilder.validate_generic_name(_("Guest"), name)
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if not check_collision:
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return
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try:
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conn.lookupByName(name)
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except Exception:
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return
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raise ValueError(_("Guest name '%s' is already in use.") % name)
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@staticmethod
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def generate_uuid(conn):
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def _randomUUID():
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if conn.fake_conn_predictable():
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# Testing hack
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return "00000000-1111-2222-3333-444444444444"
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u = [random.randint(0, 255) for ignore in range(0, 16)]
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u[6] = (u[6] & 0x0F) | (4 << 4)
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u[8] = (u[8] & 0x3F) | (2 << 6)
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return "-".join(["%02x" * 4, "%02x" * 2, "%02x" * 2, "%02x" * 2,
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"%02x" * 6]) % tuple(u)
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for ignore in range(256):
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uuid = _randomUUID()
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if not generatename.check_libvirt_collision(
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conn.lookupByUUID, uuid):
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return uuid
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log.error( # pragma: no cover
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"Failed to generate non-conflicting UUID")
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@staticmethod
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def generate_name(guest):
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def _pretty_arch(_a):
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if _a == "armv7l":
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return "arm"
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return _a
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force_num = False
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basename = guest.osinfo.name
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if basename.endswith("-unknown"):
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basename = basename.rsplit("-", 1)[0]
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if guest.osinfo.name == "generic":
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force_num = True
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if guest.os.is_container():
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basename = "container"
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else:
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basename = "vm"
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if guest.os.arch != guest.conn.caps.host.cpu.arch:
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basename += "-%s" % _pretty_arch(guest.os.arch)
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force_num = False
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def cb(n):
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return generatename.check_libvirt_collision(
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guest.conn.lookupByName, n)
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return generatename.generate_name(basename, cb,
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start_num=force_num and 1 or 2, force_num=force_num,
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sep=not force_num and "-" or "")
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@staticmethod
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def get_recommended_machine(capsinfo):
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"""
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Return the recommended machine type for the passed capsinfo.
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We only return this for arch cases where there's a very clear
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preference that's different from the default machine type
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"""
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def _qemu_machine():
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if (capsinfo.arch in ["ppc64", "ppc64le"] and
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"pseries" in capsinfo.machines):
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return "pseries"
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if capsinfo.arch in ["armv7l", "aarch64"]:
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if "virt" in capsinfo.machines:
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return "virt"
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if "vexpress-a15" in capsinfo.machines: # pragma: no cover
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return "vexpress-a15"
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if capsinfo.arch in ["s390x"]:
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if "s390-ccw-virtio" in capsinfo.machines:
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return "s390-ccw-virtio"
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if capsinfo.arch in ["riscv64", "riscv32"]:
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if "virt" in capsinfo.machines:
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return "virt"
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if capsinfo.conn.is_qemu() or capsinfo.conn.is_test():
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return _qemu_machine()
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return None
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#################
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# init handling #
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#################
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XML_NAME = "domain"
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_XML_PROP_ORDER = [
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"type", "name", "uuid", "genid", "genid_enable",
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"title", "description", "_metadata", "iothreads", "iothreadids",
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"maxMemory", "maxMemorySlots", "memory", "_currentMemory",
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"blkiotune", "memtune", "memoryBacking",
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"_vcpus", "vcpu_current", "vcpu_placement",
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"vcpu_cpuset", "vcpulist", "numatune", "resource", "sysinfo",
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"bootloader", "os", "idmap", "features", "cpu", "clock",
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"on_poweroff", "on_reboot", "on_crash",
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"pm", "emulator", "devices", "launchSecurity", "seclabels", "keywrap"]
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def __init__(self, *args, **kwargs):
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XMLBuilder.__init__(self, *args, **kwargs)
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# Allow virt-manager to override the default graphics type
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self.default_graphics_type = BuildConfig.default_graphics
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self.skip_default_console = False
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self.skip_default_channel = False
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self.skip_default_sound = False
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self.skip_default_usbredir = False
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self.skip_default_graphics = False
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self.skip_default_rng = False
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self.x86_cpu_default = self.cpu.SPECIAL_MODE_APP_DEFAULT
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self.skip_default_osinfo = False
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self.uefi_requested = False
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self.__osinfo = None
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self._capsinfo = None
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self._domcaps = None
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self._extra_drivers = None
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######################
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# Property accessors #
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######################
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name = XMLProperty("./name")
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iothreads = XMLProperty("./iothreads", is_int=True)
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iothreadids = XMLChildProperty(_IOThreadID, relative_xpath="./iothreadids")
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def _set_currentMemory(self, val):
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if val is not None:
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val = int(val)
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if self.memory is None or self.memory < val:
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self.memory = val
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self._currentMemory = val
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def _get_currentMemory(self):
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return self._currentMemory
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currentMemory = property(_get_currentMemory, _set_currentMemory)
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_currentMemory = XMLProperty("./currentMemory", is_int=True)
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memory = XMLProperty("./memory", is_int=True)
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maxMemory = XMLProperty("./maxMemory", is_int=True)
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maxMemorySlots = XMLProperty("./maxMemory/@slots", is_int=True)
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def _set_vcpus(self, val):
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if val is not None:
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val = int(val)
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# Don't force set curvcpus unless already specified
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if self.vcpu_current is not None and self.vcpu_current > val:
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self.vcpu_current = val
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self._vcpus = val
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def _get_vcpus(self):
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return self._vcpus
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_vcpus = XMLProperty("./vcpu", is_int=True)
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vcpus = property(_get_vcpus, _set_vcpus)
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vcpu_current = XMLProperty("./vcpu/@current", is_int=True)
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vcpu_placement = XMLProperty("./vcpu/@placement")
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vcpu_cpuset = XMLProperty("./vcpu/@cpuset")
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uuid = XMLProperty("./uuid")
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genid = XMLProperty("./genid")
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genid_enable = XMLProperty("./genid", is_bool=True)
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id = XMLProperty("./@id", is_int=True)
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type = XMLProperty("./@type")
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bootloader = XMLProperty("./bootloader")
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description = XMLProperty("./description")
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title = XMLProperty("./title")
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emulator = XMLProperty("./devices/emulator")
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on_poweroff = XMLProperty("./on_poweroff")
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on_reboot = XMLProperty("./on_reboot")
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on_crash = XMLProperty("./on_crash")
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on_lockfailure = XMLProperty("./on_lockfailure")
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vcpulist = XMLChildProperty(DomainVCPUs, is_single=True)
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seclabels = XMLChildProperty(DomainSeclabel)
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keywrap = XMLChildProperty(DomainKeyWrap, is_single=True)
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os = XMLChildProperty(DomainOs, is_single=True)
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features = XMLChildProperty(DomainFeatures, is_single=True)
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clock = XMLChildProperty(DomainClock, is_single=True)
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cpu = XMLChildProperty(DomainCpu, is_single=True)
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cputune = XMLChildProperty(DomainCputune, is_single=True)
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numatune = XMLChildProperty(DomainNumatune, is_single=True)
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pm = XMLChildProperty(DomainPm, is_single=True)
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blkiotune = XMLChildProperty(DomainBlkiotune, is_single=True)
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memtune = XMLChildProperty(DomainMemtune, is_single=True)
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memoryBacking = XMLChildProperty(DomainMemoryBacking, is_single=True)
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idmap = XMLChildProperty(DomainIdmap, is_single=True)
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resource = XMLChildProperty(DomainResource, is_single=True)
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sysinfo = XMLChildProperty(DomainSysinfo, is_single=True)
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launchSecurity = XMLChildProperty(DomainLaunchSecurity, is_single=True)
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_metadata = XMLChildProperty(DomainMetadata, is_single=True)
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xmlns_qemu = XMLChildProperty(DomainXMLNSQemu, is_single=True)
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##############################
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# osinfo related definitions #
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##############################
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def _get_osinfo(self):
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if self.__osinfo:
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return self.__osinfo
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os_id = self._metadata.libosinfo.os_id
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if os_id:
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self.__osinfo = OSDB.lookup_os_by_full_id(os_id)
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if not self.__osinfo:
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log.debug("XML had libosinfo os id=%s but we didn't "
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"find any libosinfo object matching that", os_id)
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if not self.__osinfo:
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# If you hit this error, it means some part of the cli
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# tried to access osinfo before we can depend on it being
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# available. Try moving whatever bits need osinfo to be
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# triggered via set_defaults
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xmlutil.raise_programming_error(self.skip_default_osinfo,
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"osinfo is accessed before it has been set.")
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self.set_default_os_name()
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return self.__osinfo
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osinfo = property(_get_osinfo)
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def _set_os_obj(self, obj):
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self.__osinfo = obj
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self._metadata.libosinfo.os_id = obj.full_id
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def set_os_name(self, name):
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obj = OSDB.lookup_os(name, raise_error=True)
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log.debug("Setting Guest osinfo name %s", obj)
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self._set_os_obj(obj)
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def set_default_os_name(self):
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self.set_os_name("generic")
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def _supports_virtio(self, os_support):
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if not self.conn.is_qemu():
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return False
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# These _only_ support virtio so don't check the OS
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if (self.os.is_arm_machvirt() or
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self.os.is_riscv_virt() or
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self.os.is_s390x() or
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self.os.is_pseries()):
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return True
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if not os_support:
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return False
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if self.os.is_x86():
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return True
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return False # pragma: no cover
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def supports_virtionet(self):
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return self._supports_virtio(self.osinfo.supports_virtionet(self._extra_drivers))
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def supports_virtiodisk(self):
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return self._supports_virtio(self.osinfo.supports_virtiodisk(self._extra_drivers))
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def supports_virtioscsi(self):
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return self._supports_virtio(self.osinfo.supports_virtioscsi(self._extra_drivers))
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def _supports_virtioserial(self):
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return self._supports_virtio(self.osinfo.supports_virtioserial(self._extra_drivers))
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#####################
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# Bootorder helpers #
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#####################
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def _get_old_boot_order(self):
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return self.os.bootorder
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def _convert_old_boot_order(self):
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"""Converts the old boot order (e.g. <boot dev='hd'/>) into the
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per-device boot order format.
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"""
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boot_order = self._get_old_boot_order()
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ret = []
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disk = None
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cdrom = None
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floppy = None
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net = None
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for d in self.devices.disk:
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if not cdrom and d.device == "cdrom":
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cdrom = d
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if not floppy and d.device == "floppy":
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floppy = d
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if not disk and d.device not in ["cdrom", "floppy"]:
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disk = d
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if cdrom and disk and floppy:
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break
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for n in self.devices.interface:
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net = n
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break
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for b in boot_order:
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if b == "network" and net:
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ret.append(net.get_xml_id())
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elif b == "hd" and disk:
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ret.append(disk.get_xml_id())
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elif b == "cdrom" and cdrom:
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ret.append(cdrom.get_xml_id())
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elif b == "fd" and floppy:
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ret.append(floppy.get_xml_id())
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return ret
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def _get_device_boot_order(self):
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order = []
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for dev in self.get_bootable_devices():
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if not dev.boot.order:
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continue
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order.append((dev.get_xml_id(), dev.boot.order))
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if not order:
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# No devices individually marked bootable, convert traditional
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# boot XML to fine grained
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return self._convert_old_boot_order()
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order.sort(key=lambda p: p[1])
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return [p[0] for p in order]
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def get_boot_order(self, legacy=False):
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if legacy:
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return self._get_old_boot_order()
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return self._get_device_boot_order()
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def _set_device_boot_order(self, boot_order):
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"""Sets the new device boot order for the domain"""
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# Unset the traditional boot order
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self.os.bootorder = []
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# Unset device boot order
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for dev in self.devices.get_all():
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dev.boot.order = None
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dev_map = dict((dev.get_xml_id(), dev) for dev in
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self.get_bootable_devices())
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for boot_idx, dev_xml_id in enumerate(boot_order, 1):
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dev_map[dev_xml_id].boot.order = boot_idx
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def set_boot_order(self, boot_order, legacy=False):
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"""Modifies the boot order"""
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if legacy:
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self.os.bootorder = boot_order
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else:
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self._set_device_boot_order(boot_order)
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def reorder_boot_order(self, dev, boot_index):
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"""Sets boot order of `dev` to `boot_index`
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Sets the boot order for device `dev` to value `boot_index` and
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adjusts all other boot indices accordingly. Additionally the
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boot order defined in the 'os' node of a domain definition is
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disabled since they are mutually exclusive in libvirt.
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"""
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# unset legacy boot order
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self.os.bootorder = []
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# Sort the bootable devices by boot order
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devs_sorted = sorted([device for device in self.get_bootable_devices()
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if device.boot.order is not None],
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key=lambda device: device.boot.order)
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# set new boot order
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dev.boot.order = boot_index
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next_boot_index = None
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for device in devs_sorted:
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if device is dev:
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continue
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if device.boot.order in [next_boot_index, boot_index]:
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next_boot_index = device.boot.order + 1
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device.boot.order = next_boot_index
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continue
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|
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if next_boot_index is not None:
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# we found a hole so we can stop here
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break
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###############################
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# Public XML APIs and helpers #
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###############################
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def add_device(self, dev):
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self.devices.add_child(dev)
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def remove_device(self, dev):
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self.devices.remove_child(dev)
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devices = XMLChildProperty(_DomainDevices, is_single=True)
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def find_device(self, origdev):
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"""
|
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Try to find a child device that matches the content of
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the passed @origdev.
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"""
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devlist = getattr(self.devices, origdev.DEVICE_TYPE)
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for idx, dev in enumerate(devlist):
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if origdev.compare_device(dev, idx):
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return dev
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return None
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|
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def get_bootable_devices(self, exclude_redirdev=False):
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"""
|
|
Returns bootable devices of the guest definition. If
|
|
@exclude_redirdev is `True` redirected devices will be
|
|
skipped in the output.
|
|
|
|
"""
|
|
devices = self.devices
|
|
devs = devices.disk + devices.interface + devices.hostdev
|
|
if not exclude_redirdev:
|
|
devs = devs + devices.redirdev
|
|
return devs
|
|
|
|
def prefers_uefi(self):
|
|
"""
|
|
Return True if this config prefers UEFI. For example,
|
|
arm+machvirt prefers UEFI since it's required for traditional
|
|
install methods
|
|
"""
|
|
return self.os.is_arm_machvirt()
|
|
|
|
def get_uefi_path(self):
|
|
"""
|
|
If UEFI firmware path is found, return it, otherwise raise an error
|
|
"""
|
|
domcaps = self.lookup_domcaps()
|
|
|
|
if not domcaps.supports_uefi_xml():
|
|
raise RuntimeError(_("Libvirt version does not support UEFI."))
|
|
|
|
if not domcaps.arch_can_uefi():
|
|
raise RuntimeError(
|
|
_("Don't know how to setup UEFI for arch '%s'") %
|
|
self.os.arch)
|
|
|
|
path = domcaps.find_uefi_path_for_arch()
|
|
if not path: # pragma: no cover
|
|
raise RuntimeError(_("Did not find any UEFI binary path for "
|
|
"arch '%s'") % self.os.arch)
|
|
|
|
return path
|
|
|
|
def is_uefi(self):
|
|
if self.os.loader and self.os.loader_type == "pflash":
|
|
return True
|
|
return self.os.firmware == "efi"
|
|
|
|
def set_uefi_path(self, path):
|
|
"""
|
|
Configure UEFI for the VM, but only if libvirt is advertising
|
|
a known UEFI binary path.
|
|
"""
|
|
self.os.loader_ro = True
|
|
self.os.loader_type = "pflash"
|
|
self.os.loader = path
|
|
|
|
# If the firmware name contains "secboot" it is probably build
|
|
# with SMM feature required so we need to enable that feature,
|
|
# otherwise the firmware may fail to load. True secure boot is
|
|
# currently supported only on x86 architecture and with q35 with
|
|
# SMM feature enabled so change the machine to q35 as well.
|
|
# To actually enforce the secure boot for the guest if Secure Boot
|
|
# Mode is configured we need to enable loader secure feature.
|
|
if (self.os.is_x86() and
|
|
"secboot" in self.os.loader):
|
|
self.features.smm = True
|
|
self.os.loader_secure = True
|
|
if self.os.machine and "q35" not in self.os.machine:
|
|
log.warning("Changing machine type from '%s' to 'q35' "
|
|
"which is required for UEFI secure boot.",
|
|
self.os.machine)
|
|
self.os.machine = "q35"
|
|
|
|
def disable_hyperv_for_uefi(self):
|
|
# UEFI doesn't work with hyperv bits for some OS
|
|
if not self.is_uefi():
|
|
return # pragma: no cover
|
|
if not self.osinfo.broken_uefi_with_hyperv():
|
|
return # pragma: no cover
|
|
self.features.hyperv_relaxed = None
|
|
self.features.hyperv_vapic = None
|
|
self.features.hyperv_spinlocks = None
|
|
self.features.hyperv_spinlocks_retries = None
|
|
for i in self.clock.timers:
|
|
if i.name == "hypervclock":
|
|
self.clock.timers.remove(i)
|
|
|
|
def has_spice(self):
|
|
for gfx in self.devices.graphics:
|
|
if gfx.type == gfx.TYPE_SPICE:
|
|
return True
|
|
|
|
def has_gl(self):
|
|
for gfx in self.devices.graphics:
|
|
if gfx.gl:
|
|
return True
|
|
|
|
def has_listen_none(self):
|
|
for gfx in self.devices.graphics:
|
|
listen = gfx.get_first_listen_type()
|
|
if listen and listen == "none":
|
|
return True
|
|
return False
|
|
|
|
def is_full_os_container(self):
|
|
if not self.os.is_container():
|
|
return False
|
|
for fs in self.devices.filesystem:
|
|
if fs.target == "/":
|
|
return True
|
|
return False
|
|
|
|
def can_default_virtioscsi(self):
|
|
"""
|
|
Return True if the guest supports virtio-scsi, and there's
|
|
no other scsi controllers attached to the guest
|
|
"""
|
|
has_any_scsi = any([d.type == "scsi" for d in self.devices.controller])
|
|
return not has_any_scsi and self.supports_virtioscsi()
|
|
|
|
def hyperv_supported(self):
|
|
if not self.osinfo.is_windows():
|
|
return False
|
|
if (self.is_uefi() and
|
|
self.osinfo.broken_uefi_with_hyperv()):
|
|
return False
|
|
return True
|
|
|
|
def lookup_domcaps(self):
|
|
# We need to regenerate domcaps cache if any of these values change
|
|
def _compare(domcaps): # pragma: no cover
|
|
if self.type == "test":
|
|
# Test driver doesn't support domcaps. We kinda fake it in
|
|
# some cases, but it screws up the checking here for parsed XML
|
|
return True
|
|
if self.os.machine and self.os.machine != domcaps.machine:
|
|
return False
|
|
if self.type and self.type != domcaps.domain:
|
|
return False
|
|
if self.os.arch and self.os.arch != domcaps.arch:
|
|
return False
|
|
if self.emulator and self.emulator != domcaps.path:
|
|
return False
|
|
return True
|
|
|
|
if not self._domcaps or not _compare(self._domcaps):
|
|
self._domcaps = DomainCapabilities.build_from_guest(self)
|
|
return self._domcaps
|
|
|
|
def lookup_capsinfo(self):
|
|
# We need to regenerate capsinfo cache if any of these values change
|
|
def _compare(capsinfo): # pragma: no cover
|
|
if self.type and self.type != capsinfo.hypervisor_type:
|
|
return False
|
|
if self.os.os_type and self.os.os_type != capsinfo.os_type:
|
|
return False
|
|
if self.os.arch and self.os.arch != capsinfo.arch:
|
|
return False
|
|
if self.os.machine and self.os.machine not in capsinfo.machines:
|
|
return False
|
|
return True
|
|
|
|
if not self._capsinfo or not _compare(self._capsinfo):
|
|
self._capsinfo = self.conn.caps.guest_lookup(
|
|
os_type=self.os.os_type,
|
|
arch=self.os.arch,
|
|
typ=self.type,
|
|
machine=self.os.machine)
|
|
return self._capsinfo
|
|
|
|
def set_capabilities_defaults(self, capsinfo=None):
|
|
if capsinfo: # pragma: no cover
|
|
self._capsinfo = capsinfo
|
|
else:
|
|
capsinfo = self.lookup_capsinfo()
|
|
wants_default_type = not self.type and not self.os.os_type
|
|
|
|
self.type = capsinfo.hypervisor_type
|
|
self.os.os_type = capsinfo.os_type
|
|
self.os.arch = capsinfo.arch
|
|
if not self.os.loader:
|
|
self.os.loader = capsinfo.loader
|
|
if (not self.emulator and
|
|
not self.os.is_xenpv() and
|
|
self.type != "vz"):
|
|
self.emulator = capsinfo.emulator
|
|
if not self.os.machine:
|
|
self.os.machine = Guest.get_recommended_machine(capsinfo)
|
|
|
|
if (wants_default_type and
|
|
self.conn.is_qemu() and
|
|
self.os.is_x86() and
|
|
self.type != "kvm"):
|
|
log.warning( # pragma: no cover
|
|
"KVM acceleration not available, using '%s'", self.type)
|
|
|
|
def sync_vcpus_topology(self):
|
|
"""
|
|
<cpu> topology count and <vcpus> always need to match. Handle
|
|
the syncing here since we are less constrained then doing it
|
|
in CPU set_defaults
|
|
"""
|
|
if not self.cpu.has_topology():
|
|
return
|
|
if not self.vcpus:
|
|
self.vcpus = self.cpu.vcpus_from_topology()
|
|
self.cpu.set_topology_defaults(self.vcpus)
|
|
|
|
def set_defaults(self, _guest):
|
|
self.set_capabilities_defaults()
|
|
|
|
if not self.uuid:
|
|
self.uuid = Guest.generate_uuid(self.conn)
|
|
|
|
self.sync_vcpus_topology()
|
|
if not self.vcpus:
|
|
# Typically if omitted libvirt will fill this value in for us
|
|
# However if user specified cpuset= or placement=, libvirt
|
|
# will error if <vcpus>X is also unset. So keep this for safety
|
|
self.vcpus = 1
|
|
|
|
self._set_default_machine()
|
|
self._set_default_uefi()
|
|
|
|
self._add_default_graphics()
|
|
self._add_default_video_device()
|
|
self._add_default_input_device()
|
|
self._add_default_console_device()
|
|
self._add_default_usb_controller()
|
|
self._add_default_channels()
|
|
self._add_default_rng()
|
|
self._add_default_memballoon()
|
|
|
|
self.clock.set_defaults(self)
|
|
self.cpu.set_defaults(self)
|
|
self.features.set_defaults(self)
|
|
for seclabel in self.seclabels:
|
|
seclabel.set_defaults(self)
|
|
self.pm.set_defaults(self)
|
|
self.os.set_defaults(self)
|
|
self.launchSecurity.set_defaults(self)
|
|
|
|
for dev in self.devices.get_all():
|
|
dev.set_defaults(self)
|
|
|
|
self._add_implied_controllers()
|
|
self._add_spice_devices()
|
|
|
|
def add_extra_drivers(self, extra_drivers):
|
|
self._extra_drivers = extra_drivers
|
|
|
|
|
|
########################
|
|
# Private xml routines #
|
|
########################
|
|
|
|
def _set_default_machine(self):
|
|
if self.os.machine:
|
|
return
|
|
|
|
capsinfo = self.lookup_capsinfo()
|
|
|
|
if (self.os.is_x86() and
|
|
self.conn.is_qemu() and
|
|
"q35" in capsinfo.machines and
|
|
self.conn.support.qemu_q35_default() and
|
|
self.osinfo.supports_chipset_q35()):
|
|
self.os.machine = "q35"
|
|
return
|
|
|
|
default = capsinfo.machines and capsinfo.machines[0] or None
|
|
self.os.machine = default
|
|
|
|
|
|
def _set_default_uefi(self):
|
|
use_default_uefi = (self.prefers_uefi() and
|
|
not self.os.kernel and
|
|
not self.os.loader and
|
|
self.os.loader_ro is None and
|
|
self.os.nvram is None and
|
|
self.os.firmware is None)
|
|
|
|
if use_default_uefi or self.uefi_requested:
|
|
try:
|
|
path = self.get_uefi_path()
|
|
log.debug("Setting UEFI path=%s", path)
|
|
self.set_uefi_path(path)
|
|
except RuntimeError as e:
|
|
if self.uefi_requested:
|
|
raise
|
|
log.debug("Error setting UEFI default",
|
|
exc_info=True)
|
|
log.warning("Couldn't configure UEFI: %s", e)
|
|
log.warning("Your VM may not boot successfully.")
|
|
|
|
def _usb_disabled(self):
|
|
controllers = [c for c in self.devices.controller if
|
|
c.type == "usb"]
|
|
if not controllers:
|
|
return False
|
|
return all([c.model == "none" for c in controllers])
|
|
|
|
def _add_default_input_device(self):
|
|
if self.os.is_container():
|
|
return
|
|
if self.devices.input:
|
|
return
|
|
if not self.devices.graphics:
|
|
return
|
|
if self._usb_disabled():
|
|
return
|
|
|
|
usb_tablet = False
|
|
usb_keyboard = False
|
|
if self.os.is_x86() and not self.os.is_xenpv():
|
|
usb_tablet = self.osinfo.supports_usbtablet()
|
|
if (self.os.is_arm_machvirt() or
|
|
self.os.is_riscv_virt() or
|
|
self.os.is_pseries()):
|
|
usb_tablet = True
|
|
usb_keyboard = True
|
|
|
|
if usb_tablet:
|
|
dev = DeviceInput(self.conn)
|
|
dev.type = "tablet"
|
|
dev.bus = "usb"
|
|
self.add_device(dev)
|
|
if usb_keyboard:
|
|
dev = DeviceInput(self.conn)
|
|
dev.type = "keyboard"
|
|
dev.bus = "usb"
|
|
self.add_device(dev)
|
|
|
|
# s390x guests need VirtIO input devices
|
|
if self.os.is_s390x() and self.osinfo.supports_virtioinput(self._extra_drivers):
|
|
dev = DeviceInput(self.conn)
|
|
dev.type = "tablet"
|
|
dev.bus = "virtio"
|
|
self.add_device(dev)
|
|
dev = DeviceInput(self.conn)
|
|
dev.type = "keyboard"
|
|
dev.bus = "virtio"
|
|
self.add_device(dev)
|
|
|
|
def _add_default_console_device(self):
|
|
if self.skip_default_console:
|
|
return
|
|
if self.devices.console or self.devices.serial:
|
|
return
|
|
|
|
dev = DeviceConsole(self.conn)
|
|
dev.type = dev.TYPE_PTY
|
|
if self.os.is_s390x():
|
|
dev.target_type = "sclp"
|
|
self.add_device(dev)
|
|
|
|
def _add_default_video_device(self):
|
|
if self.os.is_container():
|
|
return
|
|
if self.devices.video:
|
|
return
|
|
if not self.devices.graphics:
|
|
return
|
|
self.add_device(DeviceVideo(self.conn))
|
|
|
|
def _add_default_usb_controller(self):
|
|
if any([d.type == "usb" for d in self.devices.controller]):
|
|
return
|
|
if not self.conn.is_qemu() and not self.conn.is_test():
|
|
return
|
|
|
|
qemu_usb3 = self.conn.support.conn_qemu_xhci()
|
|
usb2 = False
|
|
usb3 = False
|
|
if self.os.is_x86():
|
|
usb3 = bool(self.osinfo.supports_usb3() and qemu_usb3)
|
|
usb2 = not usb3
|
|
elif self.os.is_arm_machvirt():
|
|
# For machvirt, we always assume OS supports usb3
|
|
if (qemu_usb3 and
|
|
self.conn.support.conn_machvirt_pci_default()):
|
|
usb3 = True
|
|
elif self.os.is_riscv_virt():
|
|
# For RISC-V we can assume the guest OS supports USB3, but we
|
|
# have to make sure libvirt and QEMU are new enough to be using
|
|
# PCI by default
|
|
if (qemu_usb3 and
|
|
self.conn.support.conn_riscv_virt_pci_default()):
|
|
usb3 = True
|
|
elif self.os.is_pseries():
|
|
# For pseries, we always assume OS supports usb3
|
|
if qemu_usb3:
|
|
usb3 = True
|
|
|
|
|
|
if usb2:
|
|
for dev in DeviceController.get_usb2_controllers(self.conn):
|
|
self.add_device(dev)
|
|
elif usb3:
|
|
self.add_device(
|
|
DeviceController.get_usb3_controller(self.conn, self))
|
|
|
|
def _add_default_channels(self):
|
|
if self.skip_default_channel:
|
|
return
|
|
if self.devices.channel:
|
|
return
|
|
|
|
if (self.conn.is_qemu() and
|
|
self._supports_virtioserial() and
|
|
self.conn.support.conn_autosocket()):
|
|
dev = DeviceChannel(self.conn)
|
|
dev.type = "unix"
|
|
dev.target_type = "virtio"
|
|
dev.target_name = dev.CHANNEL_NAME_QEMUGA
|
|
self.add_device(dev)
|
|
|
|
def _add_default_graphics(self):
|
|
if self.skip_default_graphics:
|
|
return
|
|
if self.devices.graphics:
|
|
return
|
|
if self.os.is_container() and not self.conn.is_vz():
|
|
return
|
|
if self.os.arch not in ["x86_64", "i686", "ppc64", "ppc64le"]:
|
|
return
|
|
self.add_device(DeviceGraphics(self.conn))
|
|
|
|
def _add_default_rng(self):
|
|
if self.skip_default_rng:
|
|
return
|
|
if self.devices.rng:
|
|
return
|
|
if not (self.os.is_x86() or
|
|
self.os.is_arm_machvirt() or
|
|
self.os.is_riscv_virt() or
|
|
self.os.is_s390x() or
|
|
self.os.is_pseries()):
|
|
return
|
|
|
|
if (self.conn.is_qemu() and
|
|
self.osinfo.supports_virtiorng(self._extra_drivers) and
|
|
self.conn.support.conn_rng_urandom()):
|
|
dev = DeviceRng(self.conn)
|
|
dev.type = "random"
|
|
dev.device = "/dev/urandom"
|
|
self.add_device(dev)
|
|
|
|
def _add_default_memballoon(self):
|
|
if self.devices.memballoon:
|
|
return
|
|
if not self.conn.is_qemu():
|
|
return
|
|
|
|
# We know for certain that a memballoon is good to have with these
|
|
# machine types; for other machine types, we leave the decision up
|
|
# to libvirt
|
|
if not (self.os.is_x86() or
|
|
self.os.is_arm_machvirt() or
|
|
self.os.is_riscv_virt() or
|
|
self.os.is_s390x() or
|
|
self.os.is_pseries()):
|
|
return
|
|
|
|
if self.osinfo.supports_virtioballoon(self._extra_drivers):
|
|
dev = DeviceMemballoon(self.conn)
|
|
dev.model = "virtio"
|
|
self.add_device(dev)
|
|
|
|
def _add_implied_controllers(self):
|
|
# Add virtio-scsi controller if needed
|
|
if self.can_default_virtioscsi():
|
|
for dev in self.devices.disk:
|
|
if dev.bus == "scsi":
|
|
ctrl = DeviceController(self.conn)
|
|
ctrl.type = "scsi"
|
|
ctrl.model = "virtio-scsi"
|
|
ctrl.set_defaults(self)
|
|
self.add_device(ctrl)
|
|
break
|
|
|
|
def _add_spice_channels(self):
|
|
if self.skip_default_channel:
|
|
return
|
|
for chn in self.devices.channel:
|
|
if chn.type == chn.TYPE_SPICEVMC:
|
|
return
|
|
|
|
# We explicitly don't check for virtioserial support here.
|
|
# We did that for a while, which excluded windows, and
|
|
# we received some complaints.
|
|
# https://bugzilla.redhat.com/show_bug.cgi?id=1660123
|
|
dev = DeviceChannel(self.conn)
|
|
dev.type = DeviceChannel.TYPE_SPICEVMC
|
|
dev.set_defaults(self)
|
|
self.add_device(dev)
|
|
|
|
def _add_spice_sound(self):
|
|
if self.skip_default_sound:
|
|
return
|
|
if self.devices.sound:
|
|
return
|
|
if not self.os.is_hvm():
|
|
return # pragma: no cover
|
|
|
|
dev = DeviceSound(self.conn)
|
|
dev.set_defaults(self)
|
|
self.add_device(dev)
|
|
|
|
def _add_spice_usbredir(self):
|
|
if self.skip_default_usbredir:
|
|
return
|
|
if self.devices.redirdev:
|
|
return
|
|
if self._usb_disabled():
|
|
return
|
|
if not self.os.is_x86():
|
|
return
|
|
|
|
# If we use 4 devices here, we fill up all the emulated USB2 slots,
|
|
# and directly assigned devices are forced to fall back to USB1
|
|
# https://bugzilla.redhat.com/show_bug.cgi?id=1135488
|
|
for ignore in range(2):
|
|
dev = DeviceRedirdev(self.conn)
|
|
dev.bus = "usb"
|
|
dev.type = "spicevmc"
|
|
dev.set_defaults(self)
|
|
self.add_device(dev)
|
|
|
|
def _add_spice_devices(self):
|
|
if not self.has_spice():
|
|
return
|
|
|
|
if (self.features.vmport is None and
|
|
self.os.is_x86() and
|
|
self.conn.support.conn_vmport()):
|
|
self.features.vmport = False
|
|
|
|
self._add_spice_channels()
|
|
self._add_spice_sound()
|
|
self._add_spice_usbredir()
|