NVIDIA H100 Passthrough on HyperV to Ubuntu 22

Dear members,

I have a NVIDIA H100 NVL 94GB instaled on HPE ProLiant DL380 Gen11 runing a windows server 2022. I want to passthrough GPU from host to a VM (Ubuntu 22.04 - kernel 6.8.0-52-generic).

On host I already Dismount the GPU and assigns the device to VM.

But on Get-VMHostAssignableDevice is listed… Passthrough is well done?

I do everthing that are list on microsoft hyperV Docs.: Attaching a GPU to an Ubuntu Linux VM

I already try use VM Gen 1 and Gen 2, edit grub (GRUB_CMDLINE_LINUX_DEFAULT=“quiet splash intel_iommu=on iommu=pt pci=realloc”) but nothing work.

When I do lspci, or lshw | grep -i Nvidia… I don’t have any response.

What should I do? What solutions can I approach?
Thank you