This collective update 2012/02 for Xen provides fixes for
the following reports:

Xen ===
- 649209: Fix Xen live migrations being slow
- 683580: Fix hangs during boot up after the message
"Enabled directed EOI with ioapic_ack_old on!
- 691256: unable to open a connection to the XEN Hypervisor
- 694863: Fix kexec fails in xen
- 701686: kdump hangs on megaraid_sas driver
- 704160: crm resource migrate fails with xen machines
- 706106: Fix Inconsistent reporting of VM names during
migration
- 706574: xm console DomUName hang after "xm save/restore"
of PVM on the latest Xen
- 712051: Fix xen: IOMMU fault livelock
- 712823: Xen guest does not start reliable when rebooted
- 714183: Since last update Xen VM's don't start if the
name contains dots (as in 'example.mydomain.com')
- 715655: No support for performance counters for Westmere
E7-8837 and SandyBridge i5-2500
- 716695: dom-us using tap devices will not start
- 725169: xen-4.0.2_21511_03-0.5.3: bootup hangs
- 726332: Xen changeset 21326 introduces considerable
performance hit
- 727515: Fragmented packets hang network boot of HVM guest
- 732782: xm create hangs when maxmen value is enclosed in
"quotes"
- 734826: xm rename doesn't work anymore
- 736824: Microcode patches for AMD's 15h processors panic
the system
- 739585: Xen block-attach fails after repeated
attach/detach
- 740165: Fix heap overflow in e1000 device emulation

libvirt =======
- 728681: libvirtd litters syslog with
"interfaceGetXMLDesc:355 : internal error" messages when
using virt-manager

virt-utils ==========

- Add Support for creating images that can be run on
Microsoft Hyper-V host (Fix vpc file format. Add support
for fixed disks)