The software described in this documentation is either in Extended Support or Sustaining Support. See for more information.
Oracle recommends that you upgrade the software described by this documentation as soon as possible.

2.2.26 Paravirtualized Drivers in a Hardware Virtualized Guest

The Unbreakable Enterprise Kernel adds support for PV drivers in an HVM guest (PVHVM) on Oracle VM. The default is to present only PV drivers when running in an HVM guest. To run kernel-uek fully hardware virtualized, including the drivers, add the parameter xen_emul_unplug=never to the boot parameters in /etc/grub.conf, for example:

kernel /vmlinuz-2.6.32-300.2.1.el6uek ro root=/dev/VolGroup00/LogVol00 xen_emul_unplug=never

Adding this parameter makes the kernel also present the emulated drivers as previously (for example, the 8139cp network driver).