[vfio-users] Infiniband card shares iommu group with pci bridge

[Maksym Planeta]

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?

On 07/11/2017 06:12 PM, Alex Williamson wrote:
> On Tue, Jul 11, 2017 at 10:08 AM, Maksym Planeta
> <mplaneta at os.inf.tu-dresden.de <mailto:mplaneta at os.inf.tu-dresden.de>>
> wrote:
>
>     Does this mean that there is no way to pass a VF to a VM?
>
>
> In the current configuration with the IB card installed into a slot that
> does not support ACS, your only supported option is to assign all of the
> endpoints within that iommu group to a single VM.  The articles I linked
> explain why.

-- 
Regards,
Maksym Planeta

-------------- next part --------------
A non-text attachment was scrubbed...
Name: smime.p7s
Type: application/pkcs7-signature
Size: 5174 bytes
Desc: S/MIME Cryptographic Signature
URL: <http://listman.redhat.com/archives/vfio-users/attachments/20170711/67947161/attachment.p7s>