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

[thibaut noah]

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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