> From: Jason Gunthorpe <jgg@xxxxxxxxxx>
> Sent: Tuesday, July 15, 2025 12:08 AM
>
> This was missed during the initial implementation. The VFIO PCI encodes
> the vf_token inside the device name when opening the device from the
> group
> FD, something like:
>
> "0000:04:10.0 vf_token=bd8d9d2b-5a5f-4f5a-a211-f591514ba1f3"
>
> This is used to control access to a VF unless there is co-ordination with
> the owner of the PF.
>
> Since we no longer have a device name in the cdev path, pass the token
> directly through VFIO_DEVICE_BIND_IOMMUFD using an optional field
> indicated by VFIO_DEVICE_BIND_FLAG_TOKEN.
>
> Fixes: 5fcc26969a16 ("vfio: Add VFIO_DEVICE_BIND_IOMMUFD")
> Tested-by: Shameer Kolothum <shameerali.kolothum.thodi@xxxxxxxxxx>
> Reviewed-by: Yi Liu <yi.l.liu@xxxxxxxxx>
> Signed-off-by: Jason Gunthorpe <jgg@xxxxxxxxxx>
my r-b to v2 was missed. anyway:
Reviewed-by: Kevin Tian <kevin.tian@xxxxxxxxx>
