[vfio-users] Infiniband card shares iommu group with pci bridge
Maksym Planeta
mplaneta at os.inf.tu-dresden.de
Tue Jul 11 16:58:37 UTC 2017
I detached all virtual functions, and also I detached device 00:01.0.
The 00:01.0 didn't change the driver though, although virsh says "Device
pci_0000_00_01_0 detached". And still I get the same "group 1 is not
viable".
On 07/11/2017 06:23 PM, Alex Williamson wrote:
> On Tue, Jul 11, 2017 at 10:18 AM, Maksym Planeta
> <mplaneta at os.inf.tu-dresden.de <mailto:mplaneta at os.inf.tu-dresden.de>>
> wrote:
>
> I tried to assign the bridge to vfio or pci-stub, but it didn't work:
>
> # echo "8086 0c01" > /sys/bus/pci/drivers/pci-stub/new_id
> # echo "pci-stub" > /sys/bus/pci/devices/0000\:00\:01.0/driver_override
> # echo "0000:00:01.0" > /sys/bus/pci/drivers/pci-stub/bind
> bash: echo: write error: No such device
>
> And the same for vfio. Does it make sense at all to assign vfio
> driver to pci bridge?
>
>
> No, this is why I specified "endpoints".
--
Regards,
Maksym Planeta
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