We see virtualization becoming more and more of a necessity in the embedded world. As the complexity of processors increases, the difficulty of utilizing them increases. Processors, like the Zynq UltraScale+ MPSoC, that have a Quad-Core ARM Cortex-A53, a Dual-Core ARM Cortex-R5, and an FPGA in a single chip, can be difficult to manage. Virtualization provides a means to isolate out various pieces in a more manageable and effective way. Not only does the Xen Project Hypervisor help manage complexity, but it also can reduce size, weight, and power (SWaP), provide redundancy, address obsolescence of legacy systems, and more.
However, while the temptation is to use virtualization to create a single integrated platform for all computation, this approach could create a single point of failure unless it is mitigated by system wide redundancies.
Read more at Xen Project
