AMD Radeon RX 5700 XT Passthrough not quite working

[Talonj123]

I get error code 43 from the GPU in Device Manager in Windows 10 UEFI. Windows boots and sees the card, remote desktop works, drivers installed with the Radeon Adrenalin installer. Prior to driver install, I got "Basic windows display" I now see the 5700XT name, with an error icon. Radeon software does not launch and gives an error instead. VFIO drivers are installed (required for Ethernet, which is working).

 

Host:

CPU: AMD Ryzen 9 3950X

Motherboard: MSI MPG X570 GAMING PRO CARBON WIFI Gaming

GPU: AMD Radeon RX 5700 XT, Sapphire Nitro+ Special Edition

 

VM config attached. OVMF, pc-235-4.2 machine. The first 4 cores (8threads) are attached, GPU is set to the Radeon card, with vbios from TechPowerUp. HyperV is on.

 

I do get a "TianoCore//Open Platform Firmware Development" logo thing on my monitor (out of the GPU) when the VM boots.

 

config.xml

Edited May 14, 2020 by Talonj123

[D_K]

Have you somehow fixed this problem. It seems that I get the same error

[Talonj123]

I never did get it working. After running through attempts with unRAID and ESXi, I ki d of gave.up and am running VMs on Hyper-V. It's not what I wanted, but it's close enough and it works.