67 lines
2.3 KiB
Python
67 lines
2.3 KiB
Python
#
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# Copyright 2009, 2013 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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from .device import Device
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from ..xmlbuilder import XMLProperty
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class DeviceVideo(Device):
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XML_NAME = "video"
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_XML_PROP_ORDER = ["model", "vram", "heads", "vgamem"]
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model = XMLProperty("./model/@type")
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vram = XMLProperty("./model/@vram", is_int=True)
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vram64 = XMLProperty("./model/@vram64", is_int=True)
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ram = XMLProperty("./model/@ram", is_int=True)
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heads = XMLProperty("./model/@heads", is_int=True)
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vgamem = XMLProperty("./model/@vgamem", is_int=True)
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accel3d = XMLProperty("./model/acceleration/@accel3d", is_yesno=True)
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##################
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# Default config #
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##################
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@staticmethod
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def default_model(guest):
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if not guest.os.is_hvm():
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return None
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if guest.os.is_pseries():
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return "vga"
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if guest.os.is_arm_machvirt():
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# For all cases here the hv and guest are new enough for virtio
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return "virtio"
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if guest.os.is_riscv_virt():
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# For all cases here the hv and guest are new enough for virtio
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return "virtio"
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if guest.os.is_s390x() and guest.conn.is_qemu():
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# s390x doesn't support any of the PCI video devices
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return "virtio"
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if guest.has_spice() and guest.has_gl():
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# virtio is implied in this case
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return "virtio"
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if (guest.lookup_domcaps().supports_video_virtio() and
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guest.osinfo.supports_virtiogpu()):
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# When the guest supports it, this is the top preference
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return "virtio"
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if (guest.os.is_x86() and
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guest.has_spice() and
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guest.lookup_domcaps().supports_video_qxl()):
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# qxl is only beneficial over regular vga when paired with spice.
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# The device still may not be available though
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return "qxl"
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if (guest.is_uefi() and
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guest.lookup_domcaps().supports_video_bochs()):
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return "bochs"
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return "vga"
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def set_defaults(self, guest):
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if not self.model:
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self.model = self.default_model(guest)
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if self.model == 'virtio' and guest.has_gl():
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self.accel3d = True
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