VFIO PCI extensions for Intel graphics (GVT-d)

configname: CONFIG_VFIO_PCI_IGD

Linux Kernel Configuration
└─>Device Drivers
└─>VFIO PCI extensions for Intel graphics (GVT-d)
In linux kernel since version 3.10 (release Date: 2013-06-30)  
Support for Intel IGD specific extensions to enable direct
assignment to virtual machines. This includes exposing an IGD
specific firmware table and read-only copies of the host bridge
and LPC bridge config space.

To enable Intel IGD assignment through vfio-pci, say Y.