0 Replies Latest reply on Jul 3, 2020 12:53 AM by VMWolfe

    ESXi 6.7 u3 PCI passthrough of primary GPU not working

    VMWolfe Lurker

      Hi,

       

      I am trying to passthrough the primary GPU of my host to a VM. Passthrough is enabled and I can add it as a PCI device to the VM.

       

      However, when I try to start the VM, I get an error saying that:

       

       

      Failed - Module 'DevicePowerOn' power on failed.

       

      • Module 'DevicePowerOn' power on failed.
      • Failed to register the device pciPassthru1 for 129:0.0 due to unavailable hardware or software support.
      • Failed to start the virtual machine.

       

      And dmesg reads

       

      PCIPassthru: 2938: Can't use virtual IOMMU with devices with dependencies sdbf=0000:81:00.0 which refers to my GPU

       

      Any ideas what I could do to make this work would be much appreciated.

       

      (I have tried making the GPU not the primary GPU in my host but although I select another GPU in the video configuration of my bios, it still is initialized and used as primary GPU. I can passthrough the other GPU in my host but I need that one for another VM.)