Goal

Have a Debian host for normal operation using the iGPU of the CPU, while

Hardware

• Intel Core i5-14400 with iGPU
• NVIDIA GeForce RTX 4070 SUPER
• 32 GB RAM

Setup

Prerequisites

• Install software

  apt install bridge-utils guestfs-tools swtpm libvirt-clients libvirt-daemon-system ovmf qemu-kvm qemu-utils swtpm virt-manager virt-viewer virtinst
  systemctl enable libvirtd.service
  reboot

• Get VirtIO-win drivers ISO from: https://fedorapeople.org/groups/virt/virtio-win/direct-downloads/archive-virtio/

• Enable iommu and assign dGPU to vfio (instead of nvidia)

  • nano /etc/default/grub

    GRUB_CMDLINE_LINUX_DEFAULT="quiet splash intel_iommu=on iommu=pt vfio-pci.ids=10de:xxyy,10de:xxzz"

  • update-grub

• Add user to libvirt group

    usermod -aG libvirt $USER

Check support

• virt-host-validate qemu
• dmesg | grep -i -e DMAR -e IOMMU (VT-d enabled?)

Generate disk

qemu-img create -f qcow2 win11.img 1T

Create VM

• nano ~/win11.xml

• virsh create ~/win11.xml

Reduce virtual disk size

• https://serverfault.com/questions/729110/how-to-really-reduce-the-size-of-kvm-vms-images
• https://www.jamescoyle.net/how-to/323-reclaim-disk-space-from-a-sparse-image-file-qcow2-vmdk
• https://www.reddit.com/r/VFIO/comments/1143knx/is_virtsparsify_inplace_command_safe_to_use/?tl=de

References

General

• https://www.reddit.com/r/VFIO/
• https://libvirt.org/formatdomain.html
• https://blandmanstudios.medium.com/tutorial-the-ultimate-linux-laptop-for-pc-gamers-feat-kvm-and-vfio-dee521850385
• https://mathiashueber.com/performance-tweaks-gaming-on-virtual-machines/
• https://sysguides.com/install-a-windows-11-virtual-machine-on-kvm

Windows

• https://www.ntlite.com
• https://stefanmaron.onrender.com/posts/running_windows_11_debian_host/ (Archive)
• https://sysguides.com/install-a-windows-11-virtual-machine-on-kvm (Archive)
• https://ntdev.blog/2024/01/08/the-complete-tiny10-and-tiny11-list/ (Archive)

GPU Passthrough

• https://github.com/MaxxRK/sGPUpt (Archive)

  • Forked: https://github.com/n00b42/sGPUpt

• https://github.com/bryansteiner/gpu-passthrough-tutorial (Archive)

• https://github.com/QaidVoid/Complete-Single-GPU-Passthrough (Archive)

• https://github.com/ilayna/Single-GPU-passthrough-amd-nvidia (Archive)

• https://gitlab.com/risingprismtv/single-gpu-passthrough (Archive)

• https://www.reddit.com/r/VFIO/comments/18u9he4/rtx_4070_ti_do_i_need_to_patch_my_vbios_to_do/ (Archive)

• https://www.reddit.com/r/unRAID/comments/11jidsf/4070_ti_vm_performance_horrible/ (Archive)

• https://www.reddit.com/r/VFIO/comments/1auukyq/laptop_gpu_rtx_4070_passthrough_error_43/ (has example xml) (Archive)

• https://www.reddit.com/r/VFIO/comments/m9xktq/if_i_enable_hostpassthrough_i_just_get_a_blue/ (Archive)

• https://www.reddit.com/r/VFIO/comments/1eovt8n/buggy_single_gpu_passthrough/ (Archive)

• https://www.reddit.com/r/VFIO/comments/113ym50/singledual_gpu_looking_glass_and_multimonitors/ (Archive)

• https://www.reddit.com/r/VFIO/comments/8j4iuv/how_can_i_pass_my_gpu_back_to_the_host_after_the/ (Archive)

• https://forum.level1techs.com/t/6700xt-windows-vm-drivers-equal-black-screen/191347 (Archive)

• https://forum.level1techs.com/t/solved-7900-xtx-code-43-or-how-to-get-7900-xtx-to-work-on-vfio/194395/2 (Archive)

• https://stackoverflow.com/questions/64560389/setting-up-pulseaudio-in-qemu

Audio

• https://www.reddit.com/r/VFIO/comments/140g28e/cant_have_audio_passthrough_on_single_gpu/ (Archive)
• https://www.reddit.com/r/VFIO/comments/19abdl2/gpu_passthrough_but_no_sound_in_host_os/ (Archive)
• https://www.reddit.com/r/VFIO/comments/17m47sd/no_audio_in_my_windows_10_vm_with_single_gpu/ (Archive)
• https://www.reddit.com/r/VFIO/comments/s772h9/single_gpu_passthrough_without_shutting_down_the/ (Archive)
• https://mathiashueber.com/virtual-machine-audio-setup-get-pulse-audio-working/ (Archive)
• https://www.reddit.com/r/VFIO/comments/oqo3ae/single_gpu_passthrough_audio_without_hdmi

Misc

• https://wiki.archlinux.org/title/PCI_passthrough_via_OVMF (Archive)
• https://wiki.debianforum.de/QEMU/KVM_mit_GPU_Passthrough (Archive)