Xen para-virtualized sound frontend driver

modulename: snd_xen_front.ko

configname: CONFIG_SND_XEN_FRONTEND

Linux Kernel Configuration
└─>Device Drivers
└─>Sound card support
└─>Advanced Linux Sound Architecture
└─>Xen para-virtualized sound frontend driver
In linux kernel since version 3.10 (release Date: 2013-06-30)  
Choose this option if you want to enable a para-virtualized
frontend sound driver for Xen guest OSes.

source code: