Help with IOMMU on Intel 11th Gen

[Kafoof]

Hi Everyone,

I'm having some trouble with getting IOMMU to work. I want to pass through Intel UHD using GVT-g. I might be guess that the CPU doesn't support SR-IOV (Might Intel 8th i7 did....) . I have VTD-D enabled in the BIOS.

However when I click on the Device list, its completly empty.


When I use my other proxmox PC with the Intel Core 8th Gen i7-8700K I get a long list of devices.



I can see in the device is not supported.

[    5.108740] i915 0000:00:02.0: [drm] Unsupported device. GVT-g is disabled

 lspci  | grep VGA
00:02.0 VGA compatible controller: Intel Corporation Tiger Lake-LP GT2 [UHD Graphics G4] (rev 01)

# /etc/default/grub
GRUB_CMDLINE_LINUX_DEFAULT="quiet intel_iommu=on"
GRUB_CMDLINE_LINUX="mitigtaions=off"

# cat /proc/cmdline
BOOT_IMAGE=/boot/vmlinuz-6.2.16-18-pve root=/dev/mapper/pve-root ro mitigtaions=off quiet intel_iommu=on

# /etc/modules
vfio
vfio_iommu_type1
vfio_pci
vfio_virqfd

# Modules required for Intel GVT
kvmgt
exngt
vfio-mdev

My CPU is the i3-1125G4:
https://ark.intel.com/content/www/u...ocessor-8m-cache-up-to-3-70-ghz-with-ipu.html

Any ideas or is this a lost cause on the CPU I have?

 

[leesteken]

I'm having some trouble with getting IOMMU to work. I want to pass through Intel UHD using GVT-g. I might be guess that the CPU doesn't support SR-IOV (Might Intel 8th i7 did....) . I have VTD-D enabled in the BIOS.

However when I click on the Device list, its completly empty.

Either setup a "mapping" (under Datacenter) or just use the "raw device" as in earlier Proxmox versions. This has nothing to do with getting IOMMU to work.