iGPU PCI passthrough with PVE 7.3 (actually working with kernel 6.1)

[HeikoGr]

after realizing my problems with pci passthrough came from the pve kernel i gave the kernel v6.1 a try and got pci passthrough my iGPU working!

i was heavily guided by

• https://pve.proxmox.com/wiki/PCI(e)_Passthrough
• https://3os.org/infrastructure/prox...mox-configuration-for-gvt-g-split-passthrough
• https://gist.github.com/pulsejet/4d81c1356703b2c8ba19c1ca9e6f6e50

in /etc/default/grub replace

GRUB_CMDLINE_LINUX_DEFAULT="quiet"

with

GRUB_CMDLINE_LINUX_DEFAULT="quiet intel_iommu=on i915.enable_gvt=1 iommu=pt pcie_acs_override=downstream,multifunction video=efifb:off video=vesa:off vfio_iommu_type1.allow_unsafe_interrupts=1 kvm.ignore_msrs=1 modprobe.blacklist=radeon,nouveau,nvidia,nvidiafb,nvidia-gpu"

1. install kernel 6.1

    sudo apt install pve-kernel-6.1

2. black list i915 on host, in any conf file below /etc/modprobe.d
   blacklist i915 install i915 /usr/bin/false
3. in /etc/modules add (yes, i needed kvmgt even if i don't use GVT-g)
   

   # Modules required for PCI passthroughvfio
   vfio_iommu_type1
   vfio_pci
   vfio_virqfd
   
   # Modules required for Intel GVT-g Split
   kvmgt

4. run

   update-grub && update-initramfs -u -k all

5. reboot host
6. create VM (the follwing settings worked for me)
   1. machine (hardware): (i440fx)
   2. bios: (ovmf)
   3. add PCI device (with all functions and rom bar)
7. start vm
8. run
   

   sudo apt update
   sudo apt upgrade
   sudo apt install build-essentials

9. run this script: https://gist.github.com/pulsejet/4d81c1356703b2c8ba19c1ca9e6f6e50
   you may safely remove the ffmpeg part

now vainfo worked for me and i can transcode videos in hardware.

 

[ojrcampos]

It works for me.

But the maximum resolution that I am allowed is limited to 1024x768 in my Arch Linux with Gnome.

I can't get it to 1920x1080.

Any solution?