VFIO "GPU Passthrough" Guide for Proxmox

BIOS Settings:

Disable Above 4G
Disable ReBAR
Disable SR-IOV (Leave this enabled if using a Quadro or other SR-IOV enabled graphics accelerator)
Enable IOMMU Support
Enable VT-D
Ensure primary output in BIOS is set to iGPU (NOT AUTO)

Proxmox Kernel Version:

Ensure Proxmox is running on kernel version 6.0.2 or later -
```
pveversion -v
```
Ensure Proxmox is running on the latest kernel -
```
apt update
apt dist-upgrade
reboot
```
Update the Proxmox Kernel Commandline to boot with IOMMU Support

nano /etc/kernel/cmdline
Displaying: root=ZFS=rpool/ROOT/pve-1 boot=zfs
Change to:
For Intel:
root=ZFS=rpool/ROOT/pve-1 boot=zfs quiet intel_iommu=on
For AMD:
root=ZFS=rpool/ROOT/pve-1 boot=zfs quiet intel_iommu=on