[Intel-gfx] [PATCH 5/7] vfio: Refine vfio file kAPIs for vfio PCI hot reset

[Tian, Kevin]

> From: Liu, Yi L <yi.l.liu at intel.com>
> Sent: Thursday, March 16, 2023 8:42 PM
> 
> This prepares vfio core to accept vfio device file from the vfio PCI
> hot reset path. vfio_file_is_group() is still kept for KVM usage.
> 
> Signed-off-by: Yi Liu <yi.l.liu at intel.com>

Reviewed-by: Kevin Tian <kevin.tian at intel.com>