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8ea826 deseven 2025-06-12 12:17:26 1 
# VM iGPU Passthrough
68c497 deseven 2025-06-12 11:47:12 2
7c3401 Marcos Scriven 2026-01-02 14:55:04 3
## Working setup
68c497 deseven 2025-06-12 11:47:12 4
7c3401 Marcos Scriven 2026-01-02 14:55:04 5
The following shows the versions that are known to be working at the time of writing:
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| Hardware | Host | Guest |
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| -------- | -------- | -------- |
3f0fd8 Marcos Scriven 2026-01-02 15:09:18 9
| Bosgame M5<br>AXB35-02 SixUnited<br>BIOS 1.07 | [Proxmox 9.1](https://www.proxmox.com/en/downloads)<br>Kernel 6.17.4-1-pve | [CachyOS](https://cachyos.org)<br>Kernel Linux 6.18.2-3-cachyos<br>Mesa Mesa 25.3.2-arch1.2<br>Vulkan 1.4.335 |
7c3401 Marcos Scriven 2026-01-02 14:55:04 10
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CachyOS is not necessarily needed, but it's a convenient way to get a rolling distro in a friendly way. Once you've got it working, it's much easier to know if it's a guest issue.
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### Setting Up
e786c9 deseven 2025-10-17 08:07:15 14
7c3401 Marcos Scriven 2026-01-02 14:55:04 15
There are various guides out there, but the following gives precise instructions that result in a *confirmed working* setup with iGPU passthrough.
afcbf7 deseven 2025-06-12 12:02:54 16
7c3401 Marcos Scriven 2026-01-02 14:55:04 17
1. Install Proxmox 9.1 and run an apt dist-upgrade after installing. Ensure you have kernel 6.17.4 or later
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2. Setup the following config
0a93ab deseven 2025-06-12 13:01:13 19
```bash
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# /etc/kernel/cmdline
7c3401 Marcos Scriven 2026-01-02 14:55:04 21
... initcall_blacklist=sysfb_init
0a93ab deseven 2025-06-12 13:01:13 22
```
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```bash
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# /etc/modprobe.d/pve-blacklist.conf
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blacklist radeon
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blacklist amdgpu
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blacklist snd_hda_intel
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```
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```bash
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# /etc/modprobe.d/vfio.conf
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options vfio-pci ids=1002:1586,1002:1640 disable_vga=1
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```
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7c3401 Marcos Scriven 2026-01-02 14:55:04 37
3. Create a VM. Settings don't matter too much for now, but ensure the following:
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- 32GB memory, no baloon
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- 'host' setting on CPU arch
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- q35 machine
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- Use the latest CachyOS desktop ISO
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Do *NOT* yet try to passthrough any devices
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4. Boot the VM and install Cachy via the Proxmox console.
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5. Open a shell within Cachy and type "update", to get the latest.
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6. Edit the config of vi /etc/pve/qemu-server/100.conf and add these lines, but making sure the devices match the output of lspci on your particular machine:
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```
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hostpci0: 0000:c5:00.0,pcie=1,romfile=vbios.bin,x-vga=1
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hostpci1: 0000:c5:00.1,pcie=1,rombar=0
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hostpci3: 0000:c5:00.4,pcie=1,rombar=0
0a93ab deseven 2025-06-12 13:01:13 52
```
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7c3401 Marcos Scriven 2026-01-02 14:55:04 54
Note that the last one is a USB controller - you'll need to plugin a keyboard and mouse initially. Also not that you *do not* need a BIOS for the audio device.
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7. Extract your *own* VBIOS according to https://github.com/isc30/ryzen-gpu-passthrough-proxmox?tab=readme-ov-file#configuring-the-gpu-in-the-windows-vm. There's no guarantee someone else's VBIOS will work for you.
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After that, you should now be able to start the VM, and CachyOS will show up on your monitor.
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## USB passthrough
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As noted above, in order to use a desktop environment, you can passthrough a USB controller. On the Bosgame M5, the USB controller in the same group as the iGPU is the physical USB 3 port at the back, next to the power supply connector. It might not start with "5"
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a2cb42 deseven 2025-06-20 12:07:25 65
Proxmox VM:
e10072 deseven 2025-06-17 18:01:52 66
![8060s GPU Passthrough in Proxmox](./proxmox-8060s-passthrough.png)
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f5647d deseven 2025-09-28 19:26:14 68
### Windows VMs
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- hardware IDs are `1002:1586` (iGPU) and `1002:1640` (audio)
f5647d deseven 2025-09-28 19:26:14 70
- the 'reset bug' is here, I found no way to avoid it, so **you can passthrough the iGPU to a Windows guest only once per boot of the host**
94b4e5 deseven 2025-08-11 15:28:17 71
- don't bother with `vendor-reset` module and/or `RadeonResetBugFix` service, they are severely outdated and don't do anything in our case
029502 deseven 2025-07-04 22:48:21 72
- if your VM crashes during GPU driver install, switch the CPU type to something generic (`x86-64-v4` for example seems to work fine), install the driver, then return it back to `host`
56c240 deseven 2025-07-04 22:54:19 73
- if you see unknown PCI device (`1af4:1057`) in your Device Manager, install `viomem` driver manually from virtio drivers ISO
afcbf7 deseven 2025-06-12 12:02:54 74
- set the fixed VRAM amount in the BIOS and never change it on the OS level, otherwise expect major slowdowns and crashes
68c497 deseven 2025-06-12 11:47:12 75
- [this issue](https://github.com/isc30/ryzen-gpu-passthrough-proxmox/issues/112) might be worth looking into
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f5647d deseven 2025-09-28 19:26:14 77
### Linux VMs
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- the guide and configuration are valid for Linux too
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- Proxmox 9 seems to be a must to avoid the reset bug
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- use recent kernels (6.15+), if you see amdgpu driver errors during boot most likely your kernel is too old
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- just like with Windows, dynamic VRAM allocation seems to be very unstable, set the fixed amount in the BIOS
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68ae20 deseven 2025-11-13 15:47:19 83
### Additional Info (Discord)
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- [my personal experience and why I gave up on the idea of the iGPU passthrough](https://discord.com/channels/1384139280020148365/1384139280632250492/1430532693208334368)
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- [a discussion thread with additional links for LXC passthrough](https://discord.com/channels/1384139280020148365/1425880739638939770)
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7c3401 Marcos Scriven 2026-01-02 14:55:04 87
### Forums
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The following forums can help with Proxmox and passthrough issues in general:
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- Reddit
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- https://www.reddit.com/r/Proxmox/
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- https://www.reddit.com/r/VFIO/ ("VFIO" stands for "Virtual Function I/O", and is the tech behind hardware pasthrough)
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- Proxmox https://forum.proxmox.com
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### Other guides
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This guide seems to work for Strix Halo:
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https://github.com/isc30/ryzen-gpu-passthrough-proxmox
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There's also a guide from a Framework Desktop owner available here:
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https://community.frame.work/t/anyone-using-proxmox-ve/74863/6?u=beralt
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68c497 deseven 2025-06-12 11:47:12 106
### Files
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(taken from [[EVO-X2|Devices/GMKtec-EVO-X2]], BIOS version 1.04)
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- [vbios_8060s.bin](./vbios_8060s.bin)
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- [AMDGopDriver.rom](./AMDGopDriver.rom)