Xen 4.1.1 Maintenance Release Available

The Xen.org community as recently made available the 4.1.1 Maintenance Release. Xen.org develops the Xen hypervisor under the General Public License (GPL) as an opernsource hypervisor offering.

Xen 4.1.1 is a maintenance release in the 4.1 series and contains:

• Security fixes including CVE-2011-1583 and CVE-2011-1898
• Enhancements to guest introspection (VM single stepping support for very fine-grained access control)
• Many stability improvements, such as:
• PV-on-HVM stability fixes (fixing some IRQ issues)
• XSAVE cpu feature support for PV guests (allows safe use of latest multimedia instructions)
• RAS fixes for high availability
• fixes for offlining bad pages
• changes to libxc, mainly of benefit to libvirt
• Compatibility fixes for newer Linux guests, newer compilers, some old guest savefiles, newer Python, grub2, some hardware/BIOS bugs.

4.1.1 Download Link
Xen.org

Pete