Xen Hypervisor 4.1.1 Download
Welcome to the Xen 4.1.1 download page!
The Xen 4.1 release contains a number of important new features and updates including:
- A re-architected XL toolstack that is functionally nearly equivalent to XM/XEND
- Prototype credit2 scheduler designed for latency-sensitive workloads and very large systems
- CPU Pools for advanced partitioning
- Support for large systems (>255 processors and 1GB/2MB super page support)
- Support for x86 Advanced Vector eXtension (AVX)
- New Memory Access API enabling integration of 3rd party security solutions into Xen virtualized environments
- Even better stability through our new automated regression tests
- Xen 4.1 Release Notes
- Xen 4.1 Datasheet
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.
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Xen 4.1.1 (hypervisor and tools) official source distribution |
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