[vfio-users] passthrough usb controler pci-e card ?

[Quentin Deldycke]

Don't know if these things are affected by pci reset.

I did not encounter such problems.

--
Deldycke Quentin


On 15 January 2016 at 11:40, thibaut noah <thibaut.noah at gmail.com> wrote:

> Seems that i cannot boot the vm with the card attached through the xml
> file in libvirt, i stay on the loading screen (tianocore whathever).
> Anybody knows this issue?
>
> 2016-01-15 10:59 GMT+01:00 thibaut noah <thibaut.noah at gmail.com>:
>
>> thanks for the help, the output after launching the script is totally
>> weird :
>> new_id invalid argument
>> bind no such device
>>
>> But the kernel in use is vfio-pci, gonna try the vm asap, thanks for the
>> help :)
>>
>> 2016-01-15 10:50 GMT+01:00 Quentin Deldycke <quentindeldycke at gmail.com>:
>>
>>> Ah no, sorry -_-'
>>>
>>> This is the vendor id / product id of the pci device.
>>>
>>> This part could be ommited, but not sure. I let it in the script so
>>> better that it stay there =)
>>>
>>> --
>>> Deldycke Quentin
>>>
>>>
>>> On 15 January 2016 at 10:48, thibaut noah <thibaut.noah at gmail.com>
>>> wrote:
>>>
>>>> Just so we're clear when you do echo "1b21 0612" | sudo tee -a
>>>> /sys/bus/pci/drivers/vfio-pci/new_id
>>>> you're creating a new id for the device in vfio-pci right? This number
>>>> can be totally random?
>>>>
>>>> 2016-01-15 10:44 GMT+01:00 Quentin Deldycke <quentindeldycke at gmail.com>
>>>> :
>>>>
>>>>> To do this dynamically, i use scripts which in sum do:
>>>>>
>>>>> Unbinding:
>>>>> echo 0000:0a:00.0 | sudo tee
>>>>> /sys/bus/pci/devices/0000:0a:00.0/driver/unbind
>>>>> It means => on the driver actually used by 0000:0a:00.0, unbind the
>>>>> device 0000:0a:00.0
>>>>>
>>>>> Binding to vfio:
>>>>> echo "1b21 0612" | sudo tee -a /sys/bus/pci/drivers/vfio-pci/new_id
>>>>> echo "0000:0a:00:0" | sudo tee -a /sys/bus/pci/drivers/vfio-pci/bind
>>>>>
>>>>>
>>>>> I use them for:
>>>>>  - nvme device
>>>>>  - sata controller
>>>>>
>>>>> You could do same for GPU. But actually, it break dpm, so you have
>>>>> shitty performance.
>>>>> It is usefull for me to bind back to host as the nvme device seems to
>>>>> be lost with vfio-pci and host sleep. (can be recovered with loading nvme)
>>>>>
>>>>> --
>>>>> Deldycke Quentin
>>>>>
>>>>>
>>>>> On 15 January 2016 at 10:37, thibaut noah <thibaut.noah at gmail.com>
>>>>> wrote:
>>>>>
>>>>>> I actually have no clue about how to unbind the device from xhci
>>>>>> driver and bind it to vfio.
>>>>>> It was explain in some tutorials for graphic cards but not for other
>>>>>> devices so i'm totally lost.
>>>>>>
>>>>>>
>>>>>> 2016-01-15 10:35 GMT+01:00 Quentin Deldycke <
>>>>>> quentindeldycke at gmail.com>:
>>>>>>
>>>>>>> There is no difference.
>>>>>>>
>>>>>>> lspci to find your card, you bind it to vfio-pci and use
>>>>>>> virt-manager to add the card.
>>>>>>>
>>>>>>> Should work out of the box. Juste take care that this device is
>>>>>>> unbind from your xhci driver on host. then binded to vfio-pci.
>>>>>>>
>>>>>>> Take care of the iommu groups like the graphic card.
>>>>>>>
>>>>>>> --
>>>>>>> Deldycke Quentin
>>>>>>>
>>>>>>>
>>>>>>> On 15 January 2016 at 10:32, thibaut noah <thibaut.noah at gmail.com>
>>>>>>> wrote:
>>>>>>>
>>>>>>>> Hello, i'm currently trying to passthrough an usb card controler to
>>>>>>>> solve my usb issues (like audio glitches on headset and allow plug and
>>>>>>>> play), problem is it seems that no one did tutorials for this and i'm a bit
>>>>>>>> lost, only tutorial i found was to passthrough an internal usb controler.
>>>>>>>> Anybody got some documentation to share?
>>>>>>>>
>>>>>>>> _______________________________________________
>>>>>>>> vfio-users mailing list
>>>>>>>> vfio-users at redhat.com
>>>>>>>> https://www.redhat.com/mailman/listinfo/vfio-users
>>>>>>>>
>>>>>>>>
>>>>>>>
>>>>>>
>>>>>
>>>>
>>>
>>
>
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