Xen Hypervisor 4.0.2 Download

Welcome to the Xen 4.0.2 download page

The Xen 4.0 release contains a number of important new features and updates including:

• Blktap2 - High performance VHD implementation supporting snaphots and clonces including live snapshots
• Netchannel2 - Support for new Smart NICs with multi-queue and SR-IOV functionality
• Fault Tolerance - Live transactional synchronization of VM state between physical servers
• Libxenlight - New library providing higher-level control of Xen between various toolstacks
• PV-USB and VGA Pass-through
• Xen 4.0.x Release Notes
• Xen 4.0 Datasheet

Xen 4.0.2 is a maintenance release in the 4.0 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.

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tarball	Xen 4.0.2 (hypervisor and tools) official source distribution		signature