The software described in this documentation is either in Extended Support or Sustaining Support. See https://www.oracle.com/us/support/library/enterprise-linux-support-policies-069172.pdf for more information.
Oracle recommends that you upgrade the software described by this documentation as soon as possible.
Several improvements have been incorporated to support Xen usage with the Unbreakable Enterprise Kernel:
Numerous bug fixes and performance improvements.
Added support for more than 128 GB in a PV guest.
Xen Machine Check Exception (MCE) driver added (allows you to view MCE events that the Xen hypervisor receives).
Xen Physical CPU (PCPU) driver added (allows management tools to online or offline physical CPUs in dom0).
Xen Processor Aggregator Device (PAD) added (enables configuration and control of all processors on a platform).