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

[thibaut noah]

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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