On Tue, Jan 17, 2017 at 8:54 PM, Daniel Browne <jairuncal...@gmail.com> wrote:
> Hi guys, > I've got a new Fedora 25 host setup and I am attempting to get an Ubuntu > 16.40 guest running with VGA passthrough. On the guest, I've installed the > official nvidia driver via the Ubuntu drivers tool. The nvidia driver > loads, but xorg.log shows the error "failed to initialize glx extension > (compatible nvidia x driver not found)" > > Based on an e-mail to this list from the last time I attempted this, it is > my understanding that you need a Q35 machine and a valid pci-e bus setup to > make this all work. > I'm not sure how much this is true, that you need a "valid pci-e bus setup", but you haven't got one. AFAIK, the PCI-e root port issues are limited to Radeon. I *believe* I have a valid pci-e setup with Q35, but I'm honestly not > entirely sure. Most of what I've found regarding the subject is a bit light > on details. I would appreciate it if someone could look over my domain XML > below and help me figure out what I'm doing wrong. > > <domain type='kvm' xmlns:qemu='http://libvirt.org/schemas/domain/qemu/1.0 > '> > <name>ubuntu16.04</name> > <uuid>80e1008f-b83c-47c7-a334-c9a07577751c</uuid> > <memory unit='KiB'>4184064</memory> > <currentMemory unit='KiB'>4184064</currentMemory> > <vcpu placement='static'>2</vcpu> > <os> > <type arch='x86_64' machine='pc-q35-2.7'>hvm</type> > <loader readonly='yes' type='pflash'>/usr/share/edk2/ > ovmf/OVMF_CODE.fd</loader> > <nvram>/var/lib/libvirt/qemu/nvram/ubuntu16.04_VARS.fd</nvram> > <boot dev='hd'/> > </os> > <features> > <acpi/> > <apic/> > <kvm> > <hidden state='on'/> > </kvm> > <vmport state='off'/> > </features> > <cpu mode='custom' match='exact'> > <model fallback='allow'>Haswell-noTSX</model> > </cpu> > <clock offset='utc'> > <timer name='rtc' tickpolicy='catchup'/> > <timer name='pit' tickpolicy='delay'/> > <timer name='hpet' present='no'/> > </clock> > <on_poweroff>destroy</on_poweroff> > <on_reboot>restart</on_reboot> > <on_crash>restart</on_crash> > <pm> > <suspend-to-mem enabled='no'/> > <suspend-to-disk enabled='no'/> > </pm> > <devices> > <emulator>/usr/bin/qemu-kvm</emulator> > <disk type='file' device='disk'> > <driver name='qemu' type='raw'/> > <source file='/var/lib/libvirt/images/ubuntu.img'/> > <target dev='vda' bus='virtio'/> > <address type='pci' domain='0x0000' bus='0x02' slot='0x04' > function='0x0'/> > </disk> > <disk type='file' device='cdrom'> > <driver name='qemu' type='raw'/> > <target dev='sda' bus='sata'/> > <readonly/> > <address type='drive' controller='0' bus='0' target='0' unit='0'/> > </disk> > <controller type='usb' index='0' model='ich9-ehci1'> > <address type='pci' domain='0x0000' bus='0x00' slot='0x1d' > function='0x7'/> > </controller> > <controller type='usb' index='0' model='ich9-uhci1'> > <master startport='0'/> > <address type='pci' domain='0x0000' bus='0x00' slot='0x1d' > function='0x0' multifunction='on'/> > </controller> > <controller type='usb' index='0' model='ich9-uhci2'> > <master startport='2'/> > <address type='pci' domain='0x0000' bus='0x00' slot='0x1d' > function='0x1'/> > </controller> > <controller type='usb' index='0' model='ich9-uhci3'> > <master startport='4'/> > <address type='pci' domain='0x0000' bus='0x00' slot='0x1d' > function='0x2'/> > </controller> > <controller type='sata' index='0'> > <address type='pci' domain='0x0000' bus='0x00' slot='0x1f' > function='0x2'/> > </controller> > <controller type='pci' index='0' model='pcie-root'/> > <controller type='pci' index='1' model='dmi-to-pci-bridge'> > <model name='i82801b11-bridge'/> > <address type='pci' domain='0x0000' bus='0x00' slot='0x1e' > function='0x0'/> > </controller> > <controller type='pci' index='2' model='pci-bridge'> > <model name='pci-bridge'/> > <target chassisNr='2'/> > <address type='pci' domain='0x0000' bus='0x01' slot='0x00' > function='0x0'/> > </controller> > Add a PCIe root port here: <controller type='pci' index='3' model='pcie-root-port'> <address type='pci' domain='0x0' bus='0x0' slot='0x1c' function='0'/> </controller> <controller type='virtio-serial' index='0'> > <address type='pci' domain='0x0000' bus='0x02' slot='0x03' > function='0x0'/> > </controller> > <interface type='network'> > <mac address='52:54:00:11:00:b1'/> > <source network='default'/> > <model type='virtio'/> > <address type='pci' domain='0x0000' bus='0x02' slot='0x01' > function='0x0'/> > </interface> > <serial type='pty'> > <target port='0'/> > </serial> > <console type='pty'> > <target type='serial' port='0'/> > </console> > <channel type='spicevmc'> > <target type='virtio' name='com.redhat.spice.0'/> > <address type='virtio-serial' controller='0' bus='0' port='1'/> > </channel> > <input type='mouse' bus='ps2'/> > <input type='keyboard' bus='ps2'/> > <graphics type='spice' autoport='yes'> > <listen type='address'/> > <image compression='off'/> > </graphics> > <sound model='ich6'> > <address type='pci' domain='0x0000' bus='0x02' slot='0x02' > function='0x0'/> > </sound> > <video> > <model type='qxl' ram='65536' vram='65536' vgamem='16384' heads='1' > primary='yes'/> > <address type='pci' domain='0x0000' bus='0x00' slot='0x01' > function='0x0'/> > </video> > Hmm, you have emulated QXL graphics too, this alone could be the source of your problem. Generally the xorg.conf needs a BusID to pick the right device in this sort of setup, but I can't vouch for GeForce working as secondary in a Linux guest. > <hostdev mode='subsystem' type='pci' managed='yes'> > <driver name='vfio'/> > <source> > <address domain='0x0000' bus='0x01' slot='0x00' function='0x0'/> > </source> > <address type='pci' domain='0x0000' bus='0x02' slot='0x06' > function='0x0'/> > </hostdev> > Chance the address to: <address type='pci' domain='0x0000' bus='0x03' slot='0x00' function='0x0'/> Bus = 3 puts it on the index = 3 pcie-root-port above > <hostdev mode='subsystem' type='pci' managed='yes'> > <driver name='vfio'/> > <source> > <address domain='0x0000' bus='0x01' slot='0x00' function='0x1'/> > </source> > <address type='pci' domain='0x0000' bus='0x02' slot='0x07' > function='0x0'/> > </hostdev> > <redirdev bus='usb' type='spicevmc'> > <address type='usb' bus='0' port='1'/> > </redirdev> > <redirdev bus='usb' type='spicevmc'> > <address type='usb' bus='0' port='2'/> > </redirdev> > <memballoon model='virtio'> > <address type='pci' domain='0x0000' bus='0x02' slot='0x05' > function='0x0'/> > </memballoon> > </devices> > <qemu:commandline> > <qemu:arg value='-set'/> > <qemu:arg value='device.hostdev0.x-vga=on'/> > </qemu:commandline> > Kudos for good use of <qemu:arg>, but you're running an OVMF VM, so you don't want to use this. Thanks, Alex > </domain> > > Thanks, > Daniel > > _______________________________________________ > vfio-users mailing list > vfio-users@redhat.com > https://www.redhat.com/mailman/listinfo/vfio-users > >
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