I believe kernel 4.2.6 is broken. Use the linux-lts kernel which I think is still 4.1.6.
> On Dec 15, 2015, at 3:18 PM, Roel Van Gorp <roelvang...@gmail.com> wrote: > > Hi guys, > > After successfully setting up a W10 VM while passing through my GTX 980ti on > my old Arch linux install, I now have some difficulties setting it up on a > new Fedora installation using the exact same hardware configuration. > > I'm using a fresh Fedora 23 installation, kernel 4.2.6-301, the virt-preview > repo for the latest virtualization packages and the firmware repo at > https://www.kraxel.org/repos/firmware.repo for the latest OVFM firmware. > > I mostly based myself on Alex Williamson's blog to set this up, resulting in > the following changes in the following files: > > /etc/sysconfig/grub: > > GRUB_CMDLINE_LINUX="rd.lvm.lv=fedora/root rd.lvm.lv=fedora/swap rhgb quiet > intel_iommu=on rd.driver.pre=vfio-pci" > > /etc/modprobe.d/local.conf > > options vfio-pci ids=10de:17c8,10de:0fb0 > options vfio-pci disable_vga=1 > > /etc/dracut.conf.d/local.conf > > add_drivers+="vfio vfio_iommu_type1 vfio_pci vfio_virqfd" > > > This seems to have successfully enabled the vfio-pci driver, as shown by the > output of lspci -nnk: > > 01:00.0 VGA compatible controller [0300]: NVIDIA Corporation GM200 [GeForce > GTX 980 Ti] [10de:17c8] (rev a1) > Subsystem: Micro-Star International Co., Ltd. [MSI] Device [1462:3232] > Kernel driver in use: vfio-pci > Kernel modules: nouveau > 01:00.1 Audio device [0403]: NVIDIA Corporation Device [10de:0fb0] (rev a1) > Subsystem: Micro-Star International Co., Ltd. [MSI] Device [1462:3232] > Kernel driver in use: vfio-pci > Kernel modules: snd_hda_intel > > The VM: > > Now I first set up the VM without PCI passthrough using virt-manager and > everything worked as expected using a virtual display, allowing me to fully > install Windows 10 Pro. The problems started when removing the virtual > display and adding the PCI devices for the GTX 980 ti. There is no video > output, and looking at the CPU monitor in virt-manager there is a short CPU > spike after which it seems hangs at around 1-2%. Reattaching the virtual > display again shows the bios splash screen normally as expected, after which > it goes to black with just the small white prompt dash. Removing the PCI > devices from the configuration again allow the VM to boot normally again. > Here is the xml config for the VM: > > <domain type='kvm'> > <name>win10</name> > <uuid>527f731e-0d9e-460a-a1ef-7a010e191c34</uuid> > <memory unit='KiB'>2560000</memory> > <currentMemory unit='KiB'>2560000</currentMemory> > <vcpu placement='static'>2</vcpu> > <os> > <type arch='x86_64' machine='pc-i440fx-2.4'>hvm</type> > <loader readonly='yes' > type='pflash'>/usr/share/edk2.git/ovmf-x64/OVMF_CODE-pure-efi.fd</loader> > <nvram>/var/lib/libvirt/qemu/nvram/win10_VARS.fd</nvram> > <boot dev='hd'/> > </os> > <features> > <acpi/> > <apic/> > <pae/> > <hyperv> > <relaxed state='on'/> > <vapic state='on'/> > <spinlocks state='on' retries='8191'/> > </hyperv> > <vmport state='off'/> > </features> > <cpu mode='host-passthrough'> > <topology sockets='1' cores='2' threads='1'/> > </cpu> > <clock offset='localtime'> > <timer name='rtc' tickpolicy='catchup'/> > <timer name='pit' tickpolicy='delay'/> > <timer name='hpet' present='no'/> > <timer name='hypervclock' present='yes'/> > </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='qcow2'/> > <source file='/var/lib/libvirt/images/win10.qcow2'/> > <target dev='vda' bus='virtio'/> > <address type='pci' domain='0x0000' bus='0x00' slot='0x07' > function='0x0'/> > </disk> > <controller type='usb' index='0' model='ich9-ehci1'> > <address type='pci' domain='0x0000' bus='0x00' slot='0x06' > function='0x7'/> > </controller> > <controller type='usb' index='0' model='ich9-uhci1'> > <master startport='0'/> > <address type='pci' domain='0x0000' bus='0x00' slot='0x06' > function='0x0' multifunction='on'/> > </controller> > <controller type='usb' index='0' model='ich9-uhci2'> > <master startport='2'/> > <address type='pci' domain='0x0000' bus='0x00' slot='0x06' > function='0x1'/> > </controller> > <controller type='usb' index='0' model='ich9-uhci3'> > <master startport='4'/> > <address type='pci' domain='0x0000' bus='0x00' slot='0x06' > function='0x2'/> > </controller> > <controller type='pci' index='0' model='pci-root'/> > <interface type='network'> > <mac address='52:54:00:21:17:b8'/> > <source network='default'/> > <model type='rtl8139'/> > <address type='pci' domain='0x0000' bus='0x00' slot='0x03' > function='0x0'/> > </interface> > <hostdev mode='subsystem' type='pci' managed='yes'> > <source> > <address domain='0x0000' bus='0x01' slot='0x00' function='0x0'/> > </source> > <address type='pci' domain='0x0000' bus='0x00' slot='0x02' > function='0x0'/> > </hostdev> > <hostdev mode='subsystem' type='pci' managed='yes'> > <source> > <address domain='0x0000' bus='0x01' slot='0x00' function='0x1'/> > </source> > <address type='pci' domain='0x0000' bus='0x00' slot='0x04' > function='0x0'/> > </hostdev> > <memballoon model='virtio'> > <address type='pci' domain='0x0000' bus='0x00' slot='0x08' > function='0x0'/> > </memballoon> > </devices> > </domain> > > > Any help would be greatly appreciated! > _______________________________________________ > vfio-users mailing list > vfio-users@redhat.com > https://www.redhat.com/mailman/listinfo/vfio-users
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