iommu

  1. Possible to passthrough Thunderbolt controller to vm if not in isolated ioomu grouop?

    I have a WRX 80 Creator mainboard with an onboard Thunderbolt 4 controller. I try to passthrough that one to a Windows VM to make connectivity easier. I assigned the the Thunderbolt NHI and USB contoller to the VM and installed the Thuinderbolt drivers for my mainboard. The controller does...
  2. Cant enable passthrough for QuickSync

    Im trying to enable pci passthrough for my proxmox node (6.4-4) which has this motherboard with a j1900 cpu. The cpu supports quicksync according to this link. I have followed some internet guides including the proxmox one. But when I try to add PCI device to a VM I get the No IOMMU detected...
  3. Passthrough of onboard SATA controller on AMD B550/X570

    Hi, in my current setup on Intel C236 chipset with Xeon CPU I do a PCI passthrough of the on-board SATA controller to a TrueNAS VM, which works really great. I think about to replace the system with AMD hardare (Ryzen Pro with B550/X570) but I had read, that it maybe not possible to...
  4. why do "No Subscription" updates break IOMMU / PCI passthru?

    fresh install of latest PVE = working pci passthru. disable enterprise repo, add no subscription, then open shell, 'apt update' & 'apt upgrade'.. reboot.. *boom*! IOMMU borked. anyone else with same experience? when I go to add hardware/pci device, at the top of the box that pops up, it says...
  5. Enabling IOMMU

    Hi, I used to have PCI passthrough for my graphics card NVIDIA Quadro P400 working fine in the version 6 of Proxmox. After the upgrade to version 7.3-3 it no longer works. I tried to reconfigure everything following https://pve.proxmox.com/wiki/Pci_passthrough, but it seems that the old...
  6. [SOLVED] Cannot Passthrough NIC in Proxmox to OPNsense VM

    Hi all, As the title states, I have a 2nd NIC on my HP ProLiant DL360p Gen8 server (The first NIC is a quad 1Gbps NIC). Upon getting my hands on the NIC, I installed Proxmox 7.1-7 and ran the following script I wrote: #!/bin/bash # Configure apt sources and install necessary packages...
  7. [SOLVED] Latest update (VE 7.3-3, 5.15.74-1-pve) broke my VMs

    I have 2 VMs with PCI Passthrough and were working fine before the update. Now they won't start and I get the following error: TASK ERROR: cannot prepare PCI pass-through, IOMMU not present When I start the VM from command line, I get the following message: cannot prepare PCI pass-through...
  8. PCI Passthrough mystery ?!? "Feature X inconsistent" messages . . .

    I have three machines running latest Proxmox 7.2-11 - I use PCI passthrough on one for OPNSense Firewall (passing two NICs) Everything seems to work except I see something strange when I check the IOMMU with "dmesg | grep -e DMAR -e IOMMU" - many "feature inconsistent" messages . . . On one...
  9. Enabling IOMMU via Grub, host can no longer communicate with NVMe drive

    Processor: Intel 8700k Mobo: Asus Z390-Prime A VT-d; ON VTx: ON SR-IOV: ON I'm trying to get VMs access to these Mellanox ConnectX-4 NICs. But, when I add the hardware to a VM, I get a warning saying that IOMMU is not enabled. So, I followed the documentation's suggestion to edit...
  10. Passthrough GPU to both LXC and VM simultaneously

    Hi, Is it possible to simultaneously passthrough GPU to LXC and VM? I currently have a LXC running my Plex Server and the GPU passthrough works flawlessly but I also have a Windows 10 VM that I use sometimes and I'd like to use my GPU in order to achieve full HD resolution when running Windows...
  11. [SOLVED] VM do not start when passthrough more then one nic port of a quad card

    Hello, I am sorry, I need help with an IOMMU problem. I have a fresh installed Proxmox system on Server Hardware (Asus Z11PR-D16 Board, 2 socket Xeon Silver and i350t quad nic). I installed the PCI passthrough like described in the Proxmox manual. What is noticeable that almost every device...
  12. How to add new device PCI ids to IOMMU driver?

    I am working on development hardware. Thus, I might not be able to share too many details. I have been trying to get Proxmox GPU passthrough working on it. But, I get stuck at TASK ERROR: Cannot open iommu_group: No such file or directory. On the Add PCIe Hardware option, I do see a bunch of...
  13. [SOLVED] PCIe Passthrough not working

    Hi, I have problem pwith passthrough SATA controler to one vm and pcie USB3 to another vm. I using Supermicro H11DSi motherboard with AMD Epyc 7601 CPU and latest version of Proxmox. I have enabled IOMMU in BIOS and Im add "quiet amd_iommu=on" to systemd-boot file and reboot host. Before Edit...
  14. IO_MMU and ACPI errors

    Hardware: Ryzen 5700G ASRock X570M Pro4 64GB DDR4-3600 PCI SATA card with 8x SATA ports, 9x HHDs in total 2x NVMe SSDs and 1x SATA SSD AMD Radeon Vega 56 8G I'm trying to get this set up with GPU passthrough to one VM. Long before I can even get to the VM however, I am getting ACPI-related...
  15. No internet connection on CT's or VM's

    So basically yesterday I tried to activate IOMMU with the help of this guide to use my GPU on my Windows 10 VM... It didn't work but besides that now all of my CT's and VM's have no working internet connection, but the proxmox node still works fine... I have 1x ubuntu 22 CT and 1x Windows10 VM...
  16. [SOLVED] Trouble enabling IOMMU on Asus WS C422 with Xeon W2145 CPU

    Greetings from a newbie in Norway! I'm having a hard time enabling PCIe passthrough on my ASUS WS C422 motherboard with a W2145 CPU. I've followed the steps in the guide here https://pve.proxmox.com/wiki/Pci_passthrough , but no dice. VT-D is enabled in the BIOS. When I run: dmesg | grep -e...
  17. Can't passthrough a Firewire/SATA PCI card to Windows 7 VM

    Hi! So as the title says I'm trying to passthrough the PCI card to a Windows 7 VM. This card has both a Firewire controller as well as a SATA one. I have the two controllers bound to vfio, IOMMU is enable, the drivers for the controller are blacklisted and I have followed the official tutorials...
  18. IOMMU enabled but not detected

    Hello all. I just started tinkering with proxmox, and am trying to pass the integrated graphics to an Ubuntu VM. I can't quite get it to work, so I'd like some help troubleshooting what's wrong. This is running on a Minisforum TH50 (cpu: i5-11320h). Essentially, I've tried every method I can...
  19. [SOLVED] GPU Passthrough issue

    I've been having this GPU passthrough issue with HP Proliant dl380 g9. The GPU is passed through to vm, but after installing drivers it either bootloops or freezes the guest. Both q35 and i440fx chipsets were tried. CPU is set in host mode. PSU's give sufficient power, server only consumes 250w...
  20. [SOLVED] Proxmox IOMMU Passthrough crashes host

    I am building a small home server with Proxmox. In my system i have installed: Asus A520m-k Ryzen 5 Pro 5650G 1x SATA Controller (via PCIe) 1x PCIe to M.2 Adapter with an NVME Drive Now I want to setup a NAS, where I want to virtualize TrueNas Core. I want to passthrough the SATA Controller...

About

The Proxmox community has been around for many years and offers help and support for Proxmox VE, Proxmox Backup Server, and Proxmox Mail Gateway.
We think our community is one of the best thanks to people like you!

Get your subscription!

The Proxmox team works very hard to make sure you are running the best software and getting stable updates and security enhancements, as well as quick enterprise support. Tens of thousands of happy customers have a Proxmox subscription. Get your own in 60 seconds.

Buy now!