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Half Broken Robot

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    [Plugin] VFIO-PCI Config

    in Plugin Support

    Posted · Edited by Half Broken Robot

    On 11/5/2022 at 12:14 AM, Jeff Trusty said:

    I'm new to Linux / UnRaid.

     

    I would like to pass through my motherboard's audio to VM's. However, I'm unable to select the IOMMU group that has the audio device in it. I've tried setting my PCIe ACS Override setting to all 4 options (Disabled, Downstream Multi-function Both). Rebooting after each change. None of the settings changes the IOMMU groups. I have an ASUSTeK COMPUTER INC. PRIME B560M-A motherboard with an 11th gen i5-11600K CPU. I'm also on UnRaid v6.11.1.

     

    image.thumb.png.1a14854810b0da36d9e04a5dfb6d806b.png

     

    Any assistance would be greatly appreciated.

    I had the exactly same issue and solved a few days ago.  All the devices in IOMMU group 10 should  be listed in syslinux configuration such as
     

    Quote

    vfio-pci.ids=8086:4387,8086:43c8,8086:43a3,8086:43a4,8086:15fa


    Here is mine:
    image.thumb.png.6c542493f30fa1f9d7349b8a1e6adc9d.png

    Once rebooting, the check box from System Devices will be enabled and you can select
    image.thumb.png.b6b2cb9630ff56e24994c3b6b9dd7cee.png

     

    Though Fix Common Problems plugin reports it as a warning, I think it is OK to ignore for now.image.thumb.png.aa053606e4e036eb2744efa60ea96729.png

     

    I think there must be an elegant way to do it without warning, but I cannot come up with a solution now.
     

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