Hyper-V GPU-P not working

antpalmer · Jul 22, 2024

I have been trying to run a hyper-V VM and passing my dedicated GPU (an RX5500M) into my VM.

My host OS is Windows 11 Home and the target OS is Windows 11 Pro.

I used driver store explorer to track down drivers and I physically copied all of my AMD/ATI device drivers from my host to the target OS.
Any files in system32 with an amd/ati prefix were copied to the VM.

To avoid GPU conflicts, I disabled my integrated GPU via device manager.

For reference, I followed these links:
2 Gamers 1 GPU with Hyper V GPU-P (GPU Partitioning finally made possible with HyperV)

https://www.reddit.com/r/HyperV/comments/11ublq2/gpup_with_amd_wich_drivers_to_passthrough

GitHub - jamesstringerparsec/Easy-GPU-PV: A Project dedicated to making GPU Partitioning on Windows easier!

None of this has worked and the VM does not recognize the GPU. What can I do to fix this?

neemobeer · Jul 23, 2024

Open an elevated powershell prompt.
Run this command to make sure your GPU supports GPU-P

Code:

Get-VMHostPartitionableGpu

If it is returned then just run

Code:

Add-VMGpuPartitionAdapter -VMName <vmname>

The GPU should then be visible in the VM and you would just download and install your GPU drivers

antpalmer · Aug 4, 2024

neemobeer said:
Open an elevated powershell prompt.
Run this command to make sure your GPU supports GPU-P

Code:

Get-VMHostPartitionableGpu

If it is returned then just run

Code:

Add-VMGpuPartitionAdapter -VMName <vmname>

The GPU should then be visible in the VM and you would just download and install your GPU drivers

It didn't work, running

Code:

Get-VMGpuPartitionAdapter -VMName myvm | FL InstancePath,PartitionId,PartitionVfLuid

gets the following result:

However, this is the expected result from the microsoft documentation:

and just to clarify, this is on a laptop.

Hopachi · Aug 5, 2024

To get the whole picture:
Did it work at all with the integrated GPU?

antpalmer said:
To avoid GPU conflicts, I disabled my integrated GPU via device manager.

Then, assuming it is disabled, what is the output of the command?

Code:

Get-VMHostPartitionableGpu

neemobeer · Aug 5, 2024

Did the first command return anything? If it did not then your GPU doesn't support GPU-P

antpalmer · Aug 18, 2024

neemobeer said:
Open an elevated powershell prompt.
Run this command to make sure your GPU supports GPU-P

Code:

Get-VMHostPartitionableGpu

Code:

Name                          : <really_long_string_2>
ValidPartitionCounts          : {32}
PartitionCount                : 32
TotalVRAM                     : 1000000000
AvailableVRAM                 : 1000000000
SupportsIncomingLiveMigration : False
MinPartitionVRAM              : 0
MaxPartitionVRAM              : 1000000000
OptimalPartitionVRAM          : 1000000000
TotalEncode                   : 18446744073709551615
AvailableEncode               : 18446744073709551615
MinPartitionEncode            : 0
MaxPartitionEncode            : 18446744073709551615
OptimalPartitionEncode        : 18446744073709551615
TotalDecode                   : 1000000000
AvailableDecode               : 1000000000
MinPartitionDecode            : 0
MaxPartitionDecode            : 1000000000
OptimalPartitionDecode        : 1000000000
TotalCompute                  : 1000000000
AvailableCompute              : 1000000000
MinPartitionCompute           : 0
MaxPartitionCompute           : 1000000000
OptimalPartitionCompute       : 1000000000
CimSession                    : CimSession: .
ComputerName                  : <name>
IsDeleted                     : False

Name                          : <really_long_string_1>
ValidPartitionCounts          : {32}
PartitionCount                : 32
TotalVRAM                     : 1000000000
AvailableVRAM                 : 1000000000
SupportsIncomingLiveMigration : False
MinPartitionVRAM              : 0
MaxPartitionVRAM              : 1000000000
OptimalPartitionVRAM          : 1000000000
TotalEncode                   : 18446744073709551615
AvailableEncode               : 18446744073709551615
MinPartitionEncode            : 0
MaxPartitionEncode            : 18446744073709551615
OptimalPartitionEncode        : 18446744073709551615
TotalDecode                   : 1000000000
AvailableDecode               : 1000000000
MinPartitionDecode            : 0
MaxPartitionDecode            : 1000000000
OptimalPartitionDecode        : 1000000000
TotalCompute                  : 1000000000
AvailableCompute              : 1000000000
MinPartitionCompute           : 0
MaxPartitionCompute           : 1000000000
OptimalPartitionCompute       : 1000000000
CimSession                    : CimSession: .
ComputerName                  : <name>
IsDeleted                     : False

This is what I get.