Xen devel - Aug 2012 - [ PATCH 0/2] xen: enable APIC-Register Virtualization and Virtual-interrupt delivery

The VMCS includes controls that enable the virtualization of interrupts and the
Advanced Programmable Interrupt Controller (APIC).
When these controls are used, the processor will emulate many accesses to the
APIC, track the state of the virtual APIC, and deliver virtual interrupts - all
in VMX non-root operation without a VM exit.
You can refer to Chapter 29 of the latest SDM.
This series of patches enable APIC-Register Virtualization and Virtual-interrupt
delivery.

PATCH 1/2: Enable APIC-Register Virtualization.

PATCH 2/2: Enable Virtual-interrupt delivery.