Enable KVM host support Intel GVT-g graphics virtualization

modulename: kvmgt.ko

configname: CONFIG_DRM_I915_GVT_KVMGT

Linux Kernel Configuration
└─>Device Drivers
└─>Graphics support
└─>Enable KVM host support Intel GVT-g graphics virtualization
In linux kernel since version 3.10 (release Date: 2013-06-30)  
Choose this option if you want to enable Intel GVT-g graphics
virtualization technology host support with integrated graphics.
With GVT-g, it's possible to have one integrated graphics
device shared by multiple VMs under KVM.

Note that this driver only supports newer device from Broadwell on.
For further information and setup guide, you can visit:
http://01.org/igvt-g.

If in doubt, say "N".