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  1. #1

    Mageia - Virt-Manager cant use PCI-Passthrough

    Hello there, I am new to the forums, so Hello

    But I bring a problem, I am trying to run Windows 8 on a virtual machine, It will be for gaming and the fact I can snap back to an earlier point in case of any viruses.

    But the issue I have is the fact I cant get my AMD 6870 to run in the VM, I have both iGPU and dGPU on, VT-d is turned on, I can also run the VM without a PCI card enabled in the settings, Have I missed something or is my card not supported via passthrough at all?

    Here is the output from VM when I attempt to launch with PCI enabled.

    Error starting domain: unsupported configuration: host doesn't support passthrough of host PCI devices
    This is the Trace call back

    Traceback (most recent call last):
      File "/usr/share/virt-manager/virtManager/", line 91, in cb_wrapper
        callback(asyncjob, *args, **kwargs)
      File "/usr/share/virt-manager/virtManager/", line 127, in tmpcb
        callback(*args, **kwargs)
      File "/usr/share/virt-manager/virtManager/", line 1260, in startup
      File "/usr/lib64/python2.7/site-packages/", line 866, in create
        if ret == -1: raise libvirtError ('virDomainCreate() failed', dom=self)
    libvirtError: unsupported configuration: host doesn't support passthrough of host PCI devices
    Its been bugging me for a while now, Would it be better to just run bare-metal on 2nd HDD? But I want that as a final option.

    Any information from anyone here? I am running Mageia 4, My system specs are as follows.
    i5 2500 3.3Ghz
    8GB 1600Mhz RAM
    G1 Sniper M3
    XFX AMD Radeon HD 6870 1GB (Barts)

    Thanks in advance!

  2. #2
    Linux Guru Rubberman's Avatar
    Join Date
    Apr 2009
    I can be found either 40 miles west of Chicago, in Chicago, or in a galaxy far, far away.
    What is the host OS, and what is the virtual machine manager you are trying to use? Also, I am not familiar with Mageia. Have you tried other VMM's such as VMware, VirtualBox, or hardware-level virtual manchines such as KVM?
    Sometimes, real fast is almost as good as real time.
    Just remember, Semper Gumbi - always be flexible!

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