Proxmox passthrough VM and LXC

1. Proxmox GPU Passthrough.md

How to passthrough GPU to LXC or VM

1. Asrock rack x470d4u VM passthrough
2. Beelink EQ14

2. Asrock rack x470d4u.md

Asrock rack x470d4u

Proxmox Documentation

1. Edit grub and rewrite grub parameters

nano /etc/default/grub

Note: You should also append the iommu=pt parameter. This will prevent Linux from touching devices which cannot be passed through.

GRUB_CMDLINE_LINUX_DEFAULT="quiet amd_iommu=on iommu=pt pcie_acs_override=downstream,multifunction"

The properties pcie_acs_override=downstream,multifunction, it's mandatory, without them, proxmox will crash.

In theory this board/cpu have problems with iommu groups, gpu can be solved using this, not tested https://www.reddit.com/r/homelab/comments/b5xpua/the_ultimate_beginners_guide_to_gpu_passthrough/ GRUB_CMDLINE_LINUX_DEFAULT="quiet intel_iommu=on iommu=pt pcie_acs_override=downstream,multifunction nofb nomodeset video=vesafb:off,efifb:off"

1.1. Update Grub

update-grub

2. Update modules

nano /etc/modules

vfio
vfio_iommu_type1
vfio_pci
vfio_virqfd

2.1. Allow unsafe interrupts

echo "options vfio_iommu_type1 allow_unsafe_interrupts=1" > /etc/modprobe.d/iommu_unsafe_interrupts.conf

2.2. Ignore kvm

echo "options kvm ignore_msrs=1" > /etc/modprobe.d/kvm.conf

2.2. Update kernel modules

update-initramfs -u -k all

3. Beelink EQ14.md

BeeLink EQ14 with n150

Proxmox Documentation

1. Edit grub and rewrite grub parameters

nano /etc/default/grub

Note: You should also append the iommu=pt parameter. This will prevent Linux from touching devices which cannot be passed through.

GRUB_CMDLINE_LINUX_DEFAULT="quiet amd_iommu=on iommu=pt"

1.1. Update Grub

update-grub

2. Update modules

nano /etc/modules

vfio
vfio_iommu_type1
vfio_pci
vfio_virqfd
coretemp

2.1 Update pve-blacklist

nano /etc/modprobe.d/pve-blacklist.conf 

blacklist snd_hda_codec_hdmi
blacklist snd_hda_codec
blacklist snd_hda_core
blacklist i915

2.2. Update kernel modules

update-initramfs -u -k all

Beelink EQ14 LXC GPU.md

Beelink EQ14 LXC

Notes: IGPU N150 is not supported in last stable kernel on proxmox. You must update to the version >= 6.11

Original post

The support for new GPU is only provided in kernel >6.11.

Important steps

• Update proxmox to newer kernel
• Enable pve-no-subscription repo

1. Install last kernel

apt install proxmox-kernel-6.14
reboot

Install intel drivers manually

2. Install dependencies

apt install -y git cmake pkg-config meson libdrm-dev automake libtool

2.1. Download the latest version of LibVA

cd ~
git clone https://github.com/intel/libva.git
cd libva
Compile and install LibVA
./autogen.sh --prefix=/usr --libdir=/usr/lib/x86_64-linux-gnu
make
make install

2.2. Install GMMLib The Intel(R) Graphics Memory Management Library is a library that provides device and buffer management capabilities for the Intel(R) Graphics Compute Runtime for OpenCL and the Intel(R) Media Driver for VAAPI.

Download the latest version of GMMLib

cd ~
git clone https://github.com/intel/gmmlib.git
cd gmmlib
Compile and install GMMLib
mkdir build && cd build 
cmake -DCMAKE_BUILD_TYPE=Release ..
make -j"$(nproc)"
make install

2.3 Install Intel Media Driver for VAAPI Intel(R) Media Driver for VAAPI is a driver for Intel VGAs based on the GEN architecture, supporting hardware acceleration for decoding, encoding, and video post processing.

Download the latest version of Media Driver

cd ~
git clone https://github.com/intel/media-driver.git
Compile and install Media Driver
mkdir build_media
cd build_media
cmake ../media-driver
make -j"$(nproc)"
make install

3.4 Clean up

apt remove -y git cmake pkg-config meson libdrm-dev automake libtool
apt autoremove -y
rm -r build_media gmmlib libva media-driver

Check and confirm

To confirm that the driver has been successfully installed and Hardware Acceleration (HA) can be used, perform the following steps:

View VA-API library information

Use the vainfo tool to view VA-API library information as follows:

apt install -y vainfo
vainfo

Result 
error: can't connect to X server!
libva info: VA-API version 1.23.0
libva info: Trying to open /usr/lib/x86_64-linux-gnu/dri/iHD_drv_video.so
libva info: Found init function __vaDriverInit_1_23
libva info: va_openDriver() returns 0
vainfo: VA-API version: 1.23 (libva 2.12.0)
vainfo: Driver version: Intel iHD driver for Intel(R) Gen Graphics - 25.1.2 (223d039ee)
vainfo: Supported profile and entrypoints
      VAProfileNone                   : VAEntrypointVideoProc
      VAProfileNone                   : VAEntrypointStats
      VAProfileMPEG2Simple            : VAEntrypointVLD
...

... If you see full information displayed and no error message, the installation was successful.

Using movie viewing software

Using video players like Plex or Jellyfin, go to Settings > Transcoding and enable Hardware acceleration for Intel QuickSync (QSV).

Enable Transcoding/Hardware acceleration on Jellyfin Then try playing a video clip and go to “Settings” and change the image quality to a lower one (for example 420 kbps). If there is no error message, the HA feature is working.

Change image quality on Jellyfin In addition, while watching a movie, you can also turn on “Playback info” mode to display parameters related to “Transcoding” on the screen.

Display Transcoding information on Jellyfin

View VGA performance

This method only works on Proxmox VE Shell or on privilleged LXC

apt install -y intel-gpu-tools
intel_gpu_top

When watching a movie on Plex or Jellyfin in Transcoding mode, if you see a lot of GPU usage, it means HA is active.