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Proxmox Windows 11 with iGPU Passtrhough

I'm using intel 4th gen cpu with intel HD4600.

  1. Add this line to /etc/kernel/cmdline next to boot:zfs
quiet intel_iommu=on iommu=pt irqpool video=vesafb:off video=efifb:off initcall_blacklist=sysfb_init
note

If you not using zfs then edit file in /etc/default/grub

Look for this line:

GRUB_CMDLINE_LINUX_DEFAULT="quiet"

And add after quiet line.

Update proxmox boot tool:

proxmox-boot-tool refresh
  1. Edit /etc/modules and add VFIO module
vfio
vfio_iommu_type1
vfio_pci
vfio_virqfd
  1. IOMMU interrupt remaping
echo "options vfio_iommu_type1 allow_unsafe_interrupts=1" > /etc/modprobe.d/iommu_unsafe_interrupts.conf
echo "options kvm ignore_msrs=1" > /etc/modprobe.d/kvm.conf
  1. Blacklisting driver
echo "blacklist i915" >> /etc/modprobe.d/blacklist.conf
  1. Adding GPU to VFIO
lspci -v
info

You will see output like this

00:02.0 VGA compatible controller: Intel Corporation 4th Gen Core Processor Integrated Graphics Controller (rev 06) (prog-if 00 [VGA controller])

Make note of the first set of numbers (e.g. 00:02.0). We'll need them for the next step.

Run the command below. Replace 01:00 with whatever number was next to your GPU when you ran the previous command:

lspci -n -s 00:02
info

Doing this should output your GPU card's Vendor IDs. It'll look a little something like this:

00:02.0 0300: 8086:0416 (rev 06)

What we want to keep, are these vendor id codes: 8086:0416.

Now we add the GPU's vendor id's to the VFIO (remember to replace the id's with your own!):

echo "options vfio-pci ids=8086:0416 disable_vga=1"> /etc/modprobe.d/vfio.conf

Finally, we run this command:

update-initramfs -u

And reboot:

reboot

Now your Proxmox host should be ready to passthrough GPUs!

Edit VM configuration​

micro /etc/pve/qemu-server/100.conf