GPU Passthrough NVIDIA GTX 770 on Proxmox 7.4

999.conf

balloon: 0
bios: ovmf
boot: order=scsi0;ide2;net0;ide0
cores: 6
cpu: host,hidden=1
efidisk0: local-lvm:vm-109-disk-0,efitype=4m,pre-enrolled-keys=1,size=4M
hostpci0: 0000:81:00,pcie=1,x-vga=on,romfile=GK104-patched.rom
ide0: local:iso/virtio-win-0.1.229.iso,media=cdrom,size=522284K
ide2: local:iso/HBCD_PE_x64.iso,media=cdrom,size=3026566K
machine: q35
memory: 16384
meta: creation-qemu=7.2.0,ctime=1xxx611
name: windows10-python
net0: rtl8139=1x:xF:x7:xx:xx:xx,bridge=vmbr0,firewall=1
numa: 0
onboot: 1
ostype: l26
scsi0: local-lvm:vm-xxx-disk-1,iothread=1,size=100G
scsihw: virtio-scsi-single
smbios1: uuid=ca26xxxe3a4-4xxx6-axx3-0054xxxx942de
sockets: 2
vga: memory=256
vmgenid: 71xxxx7-xxxx-xxxx-xxxx-xxxx98167f

README.md

DISCLAIMER

This tutorial assumes that you have already created the VM and installed Windows 10 on the VM. I am not responsible for any maneuvers or wrong executions of commands that may cause any problems in your Proxmox server or VMS or anything else. The intention of this document is to help anyone experiencing error code 43 and also document it for my own personal use.

Setup the VM config

see the file: https://gist.github.com/felipemarques/bc0990b60aac19153e09f0c591b696f2#file-999-conf

Update grub

Follow the file here in this gist: /etc/default/grub

update-grub && update-initramfs -u -k all && proxmox-boot-tool refresh

Update /etc/modules

nano /etc/modules

Update/create /etc/modprobe.d/kvm.conf

nano /etc/modprobe.d/kvm.conf

Update your other files as in this docs:

• dont forget to check every file.

THE MAIN

For me, I needed to patch the rom bios of the GTX 770. Here I will describe with images how I could solve the error Code 43.

Sources:

• https://pve.proxmox.com/wiki/PCI_Passthrough
• https://pve.proxmox.com/pve-docs/pve-admin-guide.html#qm_pci_passthrough
• https://www.reddit.com/r/homelab/comments/b5xpua/the_ultimate_beginners_guide_to_gpu_passthrough/
• https://forum.proxmox.com/threads/gpu-passthrough-not-working.126537/
• https://www.reddit.com/r/Proxmox/comments/lcnn5w/proxmox_pcie_passthrough_in_2_minutes/

blacklist.conf

blacklist radeon
blacklist amdgpu
blacklist nouveau
blacklist nvidiafb
blacklist nvidia-gpu
blacklist nvidia
blacklist nvidia*

grub

# If you change this file, run 'update-grub' afterwards to update
# /boot/grub/grub.cfg.
# For full documentation of the options in this file, see:
#   info -f grub -n 'Simple configuration'

GRUB_DEFAULT=0
GRUB_TIMEOUT=5
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
GRUB_CMDLINE_LINUX_DEFAULT="quiet intel_iommu=on iommu=pt pcie_acs_override=downstream,multifunction initcall_blacklist=sysfb_init nofb nomodeset video=efifb:off video=vesa:off vfio-pci.ids=10de:1184,10de:0e0a"
GRUB_CMDLINE_LINUX=""

iommu_unsafe_interrupts.conf

options vfio_iommu_type1 allow_unsafe_interrupts=1

kvm.conf

options kvm ignore_msrs=1 report_ignored_msrs=0

modules

vfio
vfio_iommu_type1
vfio_pci
vfio_virqfd

softdep.conf

softdep nouveau pre: vfio-pci
softdep nvidiafb pre: vfio-pci

vfio.conf

options vfio-pci ids=10de:1184,10de:0e0a disable_vga=1