Ryzen APU iGPU Passthrough (Renoir / Cezanne)

Practical KVM/QEMU guide for Vega 6/8 with stable reset workflows.

This repository documents a practical approach to get Ryzen APU Vega iGPU passthrough running on KVM/QEMU.

Primary target / confirmed focus:

✅ Ryzen 4000G series (Renoir, iGPU 0x1636)
✅ Ryzen 5000G series (Cezanne, iGPU 0x1638)

It may also work for other APUs or even some discrete GPUs (dGPUs) — but no guarantees.
Your exact combo of hardware + BIOS + kernel + drivers decides everything.

Quick TL;DR (8 steps)

Enable SVM + IOMMU in BIOS (UEFI recommended)
Install vendor-reset via DKMS and add your iGPU ID (0x1636 Renoir / 0x1638 Cezanne) in src/device-db.h
(Debian 12/13 + kernel 6.12) if DKMS fails, patch src/amd/amdgpu/atom.c include
Put VBIOS/ROM files into /usr/share/vgabios
- vbios_1636.dat or vbios_1638.dat
- ATIAudioDevice_AA01.rom
Add both PCI functions to your VM XML: iGPU and iGPU audio, and attach the ROM files (CRUCIAL! Without them you get Error 43)
Use UEFI + Secure Boot (OVMF) and recommended Hyper-V/KVM feature flags
Boot Windows → install AMD drivers
Activate Windows Side reset (Also CRUCIAL! as without it the VM is not able to reset the GPU, seems like vendor-reset is not enough)

Full step-by-step guide is below.

Note: This was rock-solid for me on Debian 12 + kernel 6.12.12 On Debian 13 + newest kernel 6.12.57 or even 6.16 or 6.17 no chance

NEW FINDINGS: I had a working version before I upgraded to Debian 13 on 10. January 2026 Since then my VM crashed when I started a Game or even When I tried to login physically on the Monitor

libvirt, qemu, ovmf downgrade: so far no change
kernel downgrade to 6.12.12 also no change
removed firmware-amd-graphics completely
downgrade Windows Treiber to 25.8.1: This has fixed at least the login crash!!

Result: so far still crashes under Load...

SOLUTION NOW:

Problem of the crashes no matter what I tried was a fautly power supply.

So back to testing: Current Kernel 6.18 and 6.19 are using a new reset methode. But this seems to cause problems. Furthermore you cannot disable it and use vendor-reset instaed:

[  490.129794] amd_iommu_report_page_fault: 115868 callbacks suppressed
[  490.129798] vfio-pci 0000:06:00.0: AMD-Vi: Event logged [IO_PAGE_FAULT domain=0x0002 address=0x3682ff000 flags=0x0000]
[  490.129814] vfio-pci 0000:06:00.0: AMD-Vi: Event logged [IO_PAGE_FAULT domain=0x0002 address=0x368300000 flags=0x0000]
[  490.129826] vfio-pci 0000:06:00.0: AMD-Vi: Event logged [IO_PAGE_FAULT domain=0x0002 address=0x368301000 flags=0x0000]
[  490.129838] vfio-pci 0000:06:00.0: AMD-Vi: Event logged [IO_PAGE_FAULT domain=0x0002 address=0x368302000 flags=0x0000]
[  490.129849] vfio-pci 0000:06:00.0: AMD-Vi: Event logged [IO_PAGE_FAULT domain=0x0002 address=0x368303000 flags=0x0000]
[  490.129861] vfio-pci 0000:06:00.0: AMD-Vi: Event logged [IO_PAGE_FAULT domain=0x0002 address=0x368304000 flags=0x0000]
[  490.129872] vfio-pci 0000:06:00.0: AMD-Vi: Event logged [IO_PAGE_FAULT domain=0x0002 address=0x368305000 flags=0x0000]
[  490.129883] vfio-pci 0000:06:00.0: AMD-Vi: Event logged [IO_PAGE_FAULT domain=0x0002 address=0x368306000 flags=0x0000]
[  490.129895] vfio-pci 0000:06:00.0: AMD-Vi: Event logged [IO_PAGE_FAULT domain=0x0002 address=0x368307000 flags=0x0000]
[  490.129906] vfio-pci 0000:06:00.0: AMD-Vi: Event logged [IO_PAGE_FAULT domain=0x0002 address=0x368302000 flags=0x0000]

So I am back to Kernel 6.12.73 + vendor-reset

seems like that line is pretty stable!

Architecture (high-level)

bash

Why this exists

I did not find any complete working guide out there. So I built one.

Ryzen APU iGPU passthrough often fails with:

black screen
Error 43
reset issues after VM shutdown
“works once” behavior

This repo documents a setup that is meant to be repeatable, not luck.

What this repo contains

VBIOS / ROM files

vbios_1636.dat — Renoir Vega 6 (e.g. 4350G)
vbios_1638.dat — Cezanne Vega 8 (e.g. 5700G)
ATIAudioDevice_AA01.rom — HDMI/DP audio ROM (works for both)

IMPORTANT: You must include the audio device in passthrough — otherwise this commonly ends in Error 43.

Windows helper scripts

manage-gpu.bat — enable/disable/reset GPU + AUDIO device
swap-gpu.* — optional GPU ↔ VirtIO/VNC swap

vendor-reset scripts

install_vendor-reset_module.sh - contains the necessary commands to first remove the dkms vendor-reset module and then install it again

Want the result without debugging? (Paid help)

This repo is free and open and contains everything you need to build a working setup.

But let’s be honest: Ryzen APU iGPU passthrough can eat entire weekends.

If you’re reading this and thinking:

“Nice… but I don’t want to spend 6+ hours testing random changes until it finally works.”

Then you can hire me for a paid, done-with-you setup (remote / guided troubleshooting).

What I can help you with

✅ black screen / no output
✅ Error 43 (and the usual audio-ROM trap)
✅ vendor-reset patch + DKMS build issues
✅ correct libvirt XML for GPU + HDMI/DP audio
✅ ROM/VBIOS handling (/usr/share/vgabios etc.)
✅ getting stable start/stop/reboot behavior
✅ making it repeatable (Windows Task Scheduler automation)

What this is (and what it isn’t)

This is paid support, not a free helpdesk
We agree on scope + pricing upfront
You keep full control of your system — I guide you, explain, and fix the chain with you
VFIO/iGPU passthrough depends on the right combination of mainboard, gpu, kernel. So this is best-effort paid troubleshooting, not a “100% guaranteed fix”.
If your hardware/software combo looks unrealistic, I’ll tell you early.

What to send me (so I can tell you quickly if it’s doable)

APU model (e.g. 4350G / 5600G / 5700G)
Host OS (Debian / Proxmox / Ubuntu)
Kernel version (So far only 6.12 works with vendor-reset)
Your symptom (Error 43 / black screen / only first boot works)

Full step-by-step guide

Ryzen APU Vega iGPU Passthrough (Renoir / Cezanne) — Step-by-step Guide

This repo documents a working approach to run an AMD Ryzen APU Vega iGPU as a passthrough GPU for a Windows VM (KVM/QEMU/libvirt).

Hardware scope

✅ Confirmed / intended support

Ryzen 4000G series (Renoir, iGPU 0x1636)
Ryzen 5000G series (Cezanne, iGPU 0x1638)

⚠️ Might work on other hardware (no guarantees)

Other APUs (and even some dGPUs) might work too, but results depend on your exact combo of hardware + BIOS + kernel + driver.

⚠️ Software scope

vendor-reset currently only works until Kernel 6.12

Best way (what finally made it reliable)

Add the iGPU to vendor-reset (gnif/vendor-reset) by adding your device ID to src/device-db.h under AMD_NAVI10, e.g.:

Renoir: {PCI_VENDOR_ID_ATI, 0x1636, op, DEVICE_INFO(AMD_NAVI10)}, \
Cezanne: {PCI_VENDOR_ID_ATI, 0x1638, op, DEVICE_INFO(AMD_NAVI10)}, \

Use a Windows manage-gpu script + Task Scheduler to reset the GPU on startup and disable it on shutdown.

Step-by-step Instructions

These steps are based on (and aligned with) the Proxmox forum discussion here:

https://forum.proxmox.com/threads/amd-ryzen-5600g-igpu-code-43-error.138665/

1) Install and patch vendor-reset (Debian)

1.1 Clone vendor-reset

https://github.com/gnif/vendor-reset

git clone https://github.com/gnif/vendor-reset
cd vendor-reset

1.2 Find your iGPU device ID

lspci -nkk

Renoir is typically 1636, Cezanne is typically 1638.

1.3 Add your APU iGPU to `src/device-db.h` in the vendor_reset folder

Edit: src/device-db.h

Find the AMD_NAVI10 block and add your entry (example includes Renoir):

#define _AMD_NAVI10(op) \
    {PCI_VENDOR_ID_ATI, 0x1636, op, DEVICE_INFO(AMD_NAVI10)}, \
    {PCI_VENDOR_ID_ATI, 0x7310, op, DEVICE_INFO(AMD_NAVI10)}, \
    {PCI_VENDOR_ID_ATI, 0x7312, op, DEVICE_INFO(AMD_NAVI10)}, \

For Cezanne add:

{PCI_VENDOR_ID_ATI, 0x1638, op, DEVICE_INFO(AMD_NAVI10)}, \

1.4 Install with DKMS

easiest way:

copy the install_vendor-reset_module.sh into the vendor-reset folder
chmod +x install_vendor-reset_module.sh
./install_vendor-reset_module.sh

1.5 Debian 12 + kernel 6.12 build fix (needed in my case)

If DKMS fails on Debian 12 with kernel 6.12, I had to patch:

Edit: src/amd/amdgpu/atom.c
Change:

#include <asm/unaligned.h>

to:

#include <linux/unaligned.h>

Then run the instal-script again

./install_vendor-reset_module.sh

1.6 Load the module at boot

Note: the module name is vendor_reset (underscore, not dash).

Add it to /etc/modules:

vendor_reset

Reboot.

2) IOMMU and GRUB

2.1 IOMMU groups

My mainboard had the GPU already in a separate IOMMU group.

If yours is not, you may need ACS override / IOMMU separation (google your exact platform + “ACS override”).

2.2 GRUB options

On my system no further GRUB options were necessary because my host is a headless Debian 12 server (OMV installed) and it seems to disable the iGPU automatically.

(Your setup may differ.)

3) VBIOS / ROM files

3.1 Extract your VBIOS and HDMI audio ROM

You can extract these from:

your GPU / system firmware
or from a UEFI/BIOS update file

If you have the same CPUs as me (4350G or 5700G), you can use the files in this repo:

vbios_1636.dat — Vega 6 (4350G)
vbios_1638.dat — Vega 8 (5700G)
ATIAudioDevice_AA01.rom — HDMI audio device (works for both)

IMPORTANT: You must include the audio device otherwise passthrough often ends as Error 43.

3.2 My extraction method (BIOS update file)

I used:

UBU tool: https://winraid.level1techs.com/t/tool-guide-news-uefi-bios-updater-ubu/3035 (UBU-1.80)
Extract the archive, run UBU.cmd, provide the UEFI update file when prompted.

Then convert as described here:

3.3 Put ROM files where libvirt can load them (Debian)

Add the VBIOS/ROM files to:

sudo mkdir -p /usr/share/vgabios
sudo cp vbios_1636.dat vbios_1638.dat ATIAudioDevice_AA01.rom /usr/share/vgabios/

On Debian, this path was required for me (other locations did not work).

4) Add the PCIe devices to your VM (libvirt domain.xml)

4.1 Add GPU + Audio hostdev entries

Edit your VM XML (virsh edit <vmname> or virt-manager → XML) and add BOTH devices.

Example (adjust bus/slot/function to your system):

<hostdev mode="subsystem" type="pci" managed="yes">
  <source>
    <address domain="0x0000" bus="0x06" slot="0x00" function="0x0"/>
  </source>
  <rom file="/usr/share/vgabios/vbios_1636.dat"/>
  <address type="pci" domain="0x0000" bus="0x06" slot="0x00" function="0x0"/>
</hostdev>

<hostdev mode="subsystem" type="pci" managed="yes">
  <driver name="vfio"/>
  <source>
    <address domain="0x0000" bus="0x06" slot="0x00" function="0x1"/>
  </source>
  <rom file="/usr/share/vgabios/ATIAudioDevice_AA01.rom"/>
  <address type="pci" domain="0x0000" bus="0x09" slot="0x00" function="0x0"/>
</hostdev>

5) VM firmware + Windows compatibility options

5.1 UEFI + Secure Boot (required)

UEFI is necessary. For Win11, virt-manager usually configures this automatically.

Example:

<os firmware='efi'>
  <type arch='x86_64' machine='pc-q35-10.0'>hvm</type>
  <firmware>
    <feature enabled='yes' name='enrolled-keys'/>
    <feature enabled='yes' name='secure-boot'/>
  </firmware>
  <loader readonly='yes' secure='yes' type='pflash' format='raw'>/usr/share/OVMF/OVMF_CODE_4M.ms.fd</loader>
  <nvram template='/usr/share/OVMF/OVMF_VARS_4M.ms.fd' templateFormat='raw' format='raw'>/var/lib/libvirt/qemu/nvram/Win11_VARS.fd</nvram>
  <bootmenu enable='no'/>
</os>

5.2 Hyper-V / KVM feature flags (I left them enabled)

I enabled a bunch of options. I’m not sure which ones are strictly necessary, but I did not want to keep testing once it worked:

<features>
  <acpi/>
  <apic/>
  <hyperv mode='custom'>
    <relaxed state='on'/>
    <vapic state='on'/>
    <spinlocks state='on' retries='8191'/>
    <vpindex state='on'/>
    <synic state='on'/>
    <stimer state='on'/>
    <reset state='on'/>
    <vendor_id state='on' value='1756857dhai7'/>
    <frequencies state='on'/>
    <reenlightenment state='on'/>
    <tlbflush state='on'/>
    <ipi state='on'/>
  </hyperv>
  <kvm>
    <hidden state='on'/>
  </kvm>
  <vmport state='off'/>
  <smm state='on'/>
  <ioapic driver='qemu'/>
</features>

6) Boot Windows + install AMD drivers

Boot the VM into Windows and install AMD drivers. For me the official AMD drivers worked (manual download). Automatic detection may work too.

7) Optional but sometimes required: Windows reset/disable automation

This was required on my 5700G.
My 4350G worked without it.

I created manage-gpu.bat which can enable/disable/reset both the GPU and the AUDIO device in Device Manager.

7.1 Get the device instance paths

In Windows Device Manager:

open the GPU device → Details → Device instance path
do the same for the AUDIO device

Example: PCI\\VEN_1002&DEV_1638&SUBSYS_D0001458&REV_C8\\4&3B1E1872&0&000D

You can omit the tail after the second backslash:

use: PCI\\VEN_1002&DEV_1638&SUBSYS_D0001458&REV_C8 Set these values as GPU_ID and AUDIO_ID in the script.

7.2 Import scheduled tasks

Import Archive/disable_gpu.xml and Archive/reset_gpu.xml in Task Scheduler
Save / enable the tasks

Keywords

Ryzen APU, iGPU passthrough, Vega 6, Vega 8, Renoir, Cezanne, KVM, QEMU, libvirt, VFIO, vendor-reset, Error 43, Windows VM, VBIOS, ROM, OVMF, IOMMU, DKMS.

Celebrate 🎉

You successfully implemented a working APU iGPU passthrough setup — which many say is impossible.

Did not work (for me)

A qemu hook with just: /sys/bus/pci/devices/0000:06:00.0/remove 2>/dev/null

vendor_reset is doing more than that.

Name		Name	Last commit message	Last commit date
Latest commit History 38 Commits
Archive		Archive
docs		docs
.gitignore		.gitignore
ATIAudioDevice_AA01.rom		ATIAudioDevice_AA01.rom
README.md		README.md
add_new_device_id.sh		add_new_device_id.sh
install_vendor-reset_module.sh		install_vendor-reset_module.sh
manage-gpu.bat		manage-gpu.bat
swag-gpu.py		swag-gpu.py
vbios_1636.dat		vbios_1636.dat
vbios_1638.dat		vbios_1638.dat

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