PC Graphics

[Sabretale]

I am trying to use an rx570 with hyper v on windows server 2019, and I want to do GPU passthrough to a windows 10 VM. I got the drivers working on the host os, but when I try to dismount the GPU it says that there is no device at its location path. I can't find an answer on what this could be

[FunkZ]

If I understand correctly you are trying to use dedicated graphics resources inside a VM. This link may be useful: https://www.tenforums.com/virtualization/195745-tutorial-passing-through-gpu-hyper-v-guest-vm.html

[elstaci]

Found this article on how to assign GPU Pass through: https://woshub.com/passthrough-gpu-to-hyperv-vm/

The above link gives you the programming coding to enable GPU Pass Through in VM using Windows Server OS.

 Windows OS Hub / Virtualization / Hyper-V / How to Assign (Passthrough) a Physical GPU to a Hyper-V Virtual Machine

June 11, 2024 Hyper-VPowerShellWindows 10Windows 11Windows Server 2019

How to Assign (Passthrough) a Physical GPU to a Hyper-V Virtual Machine

The RemoteFX vGPU feature can be used in previous versions of Hyper-V (starting with Windows 7/Windows Server 2008 R2) to passthrough a host discrete GPU graphics card to a virtual machine. However, starting with Windows 10 1809 and Windows Server 2019, support for RemoteFX has been removed. Instead, the new Discrete Device Assignment (DDA) feature is proposed.

Contents:

• Enable GPU Passthrough to Hyper-V VM on Windows Server
• Sharing the Physical GPU with Hyper-V VM on Windows 10 or 11

Discrete Device Assignment allows physical host PCI/PCIe devices (including GPU and NVMe) to be passed through from the host to the Hyper-V virtual machine. Basic requirements for using DDA in Hyper-V:

• Available for Hyper-V Gen 2 virtual machines only;
• The VM must have dynamic memory and checkpoints disabled;
• The physical graphics card must support GPU Partitioning;
• If WSL (Windows Subsystem for Linux) is enabled on the host, a code 43 video error might occur in the VM when passing through the graphics card using GPU-P;
• Although SR-IOV (Single Root Input/Output Virtualization) is not listed in the DDA requirements, GPU passthrough to a VM will not work correctly if it’s not supported.

Discrete Device Assignment is only available on Windows Server with the Hyper-V role. In the desktop Windows 10 and 11, you can use GPU partitioning to share the video card with the virtual machine. This article describes how to assign a physical GPU to a virtual machine on Hyper-V.

I apologize if you already are aware of the above information since you didn't give any exact details on the issue you are having.

Anyways, Good Luck.

I am not familiar with GPU Pass Through but have a general idea of the concept. Thus I let others more knowledgeable to assist you.

By the way are you using a 3rd party VM software like VMware to generate your VM?

[Sabretale]

was following this guide

https://learn.microsoft.com/en-us/windows-server/virtualization/hyper-v/deploy/deploying-graphics-de...

and when i got to dismount it says that you need to input its location path PCIroot, but when I put that line in it says no device at that location path even though it's recognized by windows server 2019 host os. And by the way I had to manually install the drivers and edit them for the rx570 to work on server 2019. I followed this YouTube video to get that done.

https://youtu.be/hFf3-XHpkUI?feature=shared

Basically I need to game in the VM because I'm running a program on one GPU in host os and if I run the Rx 570 for games it interferes with the other GPU.