VFIO GPU Configuration

System:

• CPU: Intel® Core™ i7-6700 Processor
• Motherboard: Asus Z170 Deluxe
• GPU: Asus STRIX GTX 970
• iGPU: Intel HD Graphics 530
• OS: Fedora 28 Workstation Edition
• Firmware: UEFI

Enable IOMMU

• BIOS:

  • VT-d Enabled
  • VT-x Enabled
  • Graphics IGFX

• Kernel

  • In /etc/sysconfig/grub append rd.driver.pre=vfio-pci intel_iommu=on iommu=pt to GRUB_CMDLINE_LINUX ; do not copy the entire line from the file in this repo, as it contains nopti and spectre_v2=off, thus ignoring this
  • Run # grub2-mkconfig -o /etc/grub2-efi.cfg (check with: # cat /proc/cmdline)
  • Create /etc/modprobe.d/vfio.conf and add options vfio-pci ids=10de:13c2,10de:0fbb
  • Create /etc/dracut.conf.d/vfio.conf containing add_drivers+="vfio vfio_iommu_type1 vfio_pci vfio_virqfd"
  • Regenerate initramfs # dracut -f --kver `uname -r` and reboot

KVM/QEMU

• Install Windows guest OS

• Install and setup TightVNC server

• Shutdown guest and edit domain XML file using # virsh edit windows

• add

  <kvm>
    <hidden state='on'/>
  </kvm>

inside <features/> tag

• remove <hyperv> tag

• Install Nvidia driver in guest OS and reboot

References:

• PCI Passthrough

• VFIO GPU How to series