bashtheshell / iommu-nested-pve Goto Github PK

I opened a ticket with Proxmox about directly adding this functionality: https://bugzilla.proxmox.com/show_bug.cgi?id=3784

root@♦pve:~# python3 add_vIOMMU.py 900000001
waiting until VM 900000001 stopps (PID 1965142)
kvm: -chardev socket,id=tpmchar,path=/var/run/qemu-server/900000001.swtpm: Failed to connect to '/var/run/qemu-server/900000001.swtpm': No such file or directory

The script doesn't work for my since proxmox seems to delete the vmid.swtpm file on shutdown of the guest. As a result the script works until the vm stops and then fails as the file is missing. Am I making a mistake or has the script been broken with an update from PVE?

I followed the guide on my Intel 11900K build and nested pve works perfectly passing through my GPU.
However, I also tried on my X570 3950x AMD build but the GPU is not exposed to the L1 PVE.

Output from L0 PVE

dmesg | grep -e DMAR -e IOMMU -e AMD-Vi
[ 0.417329] AMD-Vi: Using global IVHD EFR:0x0, EFR2:0x0
[ 1.001980] pci 0000:00:00.2: AMD-Vi: IOMMU performance counters supported
[ 1.003440] AMD-Vi: Extended features (0x58f77ef22294a5a, 0x0): PPR NX GT IA PC GA_vAPIC
[ 1.003446] AMD-Vi: Interrupt remapping enabled
[ 1.005649] perf/amd_iommu: Detected AMD IOMMU #0 (2 banks, 4 counters/bank).

IOMMU dofo enabled on L0.

Do I need to change any qemu args to make this work on AMD?