... first Type-1 RISC-V hypervisor. The Xvisor source code is highly portable and can be easily ported to most general-purpose 32-bit or 64-bit architectures as long as they have a paged memory management unit (PMMU) and a port of the GNU C compiler (GCC). Xvisor primarily supports Full virtualization hence, supports a wide range of unmodified Guest operating systems. Paravirtualization is optional for Xvisor and will be supported in an architecture independent manner (such as VirtIO PCI/MMIO devices).