Virtual Box Graphics Card

modulename: vboxvideo.ko

configname: CONFIG_DRM_VBOXVIDEO

Linux Kernel Configuration
└─>Device Drivers
└─>Staging drivers
└─>Direct Rendering Manager (XFree86 4.1.0 and higher DRI support)
└─>Virtual Box Graphics Card
In linux kernel since version 3.10 (release Date: 2013-06-30)  
This is a KMS driver for the virtual Graphics Card used in
Virtual Box virtual machines.

Although it is possible to builtin this module, it is advised
to build this driver as a module, so that it can be updated
independently of the kernel. Select M to built this driver as a
module and add support for these devices via drm/kms interfaces.

source code: