Virtualization is a technology that allows to partition or share computer hardware resources into an isolated execution environment (EE), also known as Virtual Machine (VM). In each VM, a guest OS and, on top of it, applications are running without knowing that they are enclosed in a virtualized environment. Every VM is independent, meaning that each one of them can not interfere with another VM or with the underlying host. Unfortunately, virtualization introduces overhead in the system which, especially when it comes to device virtualization or emulation, can be overcome or mitigated by using state-of-the-art technologies like device pass-through. This technology is proven to deliver almost native performance.