Oracle VM Server for x86 is the x86 virtualization solution that enables you to simultaneously run multiple OS instances on a single machine. Oracle VM Server for x86 is based on the open source Xen project. The Oracle VM Server for x86 software supports a privileged domain (dom0) to manage guest domains and unprivileged guest domains (also called domUs) to run workloads. As with the Oracle VM Server for SPARC control domain, the dom0 domain permits the use of a small and efficient hypervisor and enhances availability. The Oracle VM Server for x86 software supports the running of Oracle Solaris in guest domains. Oracle Solaris guest domains can use OS-level virtualization features, such as Oracle Solaris zones.
For more information, go to https://www.oracle.com/technetwork/documentation/vm-096300.html.