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  • Xen Summit
    While security and OS isolation are key features of conventional virtualizuation frameworks the main concerns for EmbeddedXEN are device heterogeneity and realtime aspects which are particularly important in the embedded world EmbeddedXEN mainly relies on the original XEN architecture but with major differences in the way guest OS are handled the hypervisor has been simplified and only two guest OS dom0 and domU can run simultaneously while dom0 is used to manage the native OS with drivers original and backend splitted drivers a paravirtualized OS domU can be cross compiled on a different ARM device and user applications can run seamlessly on the virtualized host device Another important difference is that no user space tools are required to manage the VMs the framework produces a compact single binary image containing both dom0 and domU guests which can be easily deployed The Xenbus architecture has been adapted to that context EmbeddedXEN therefore allows the porting of an OS and its applications from an ARM embedded device to last generation ARM hardware such as HTC Smartphone for example Dr Daniel Rossier Professor HES University of Applied Sciences Vaud Daniel Rossier has been a Professor in Embedded Computing Sciences at the University of Applied Sciences in Yverdon Switzerland since 2003 Before his academic involvement he worked for more than 15 Years as a Software Engineer and a Project Manager in various Swiss Companies mainly active in the field of telecommunications multimedia and realtime control In 2005 he joined the HEIG VD REDS Institute Reconfigurable and Embedded Digital Systems His main research areas are operating systems RTOS and GPOS embedded virtualization ARM technologies and embedded software execution environments He has led and participated in several CTI KTI and EU research projects IST Eurescom FP in the field of realtime and self adaptive network management

    Original URL path: http://xen.xensource.com/xensummit/xs12na_talks/T10b.html (2016-02-13)
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  • Xen Hypervisor Source
    well as improving XL the underlying libxl library has been significantly improved and supports the majority of the most common toolstack features In addition the API has been declared stable which should make it even easier for external toolstack such as libvirt and XCP s xapi to make full use of this functionality in the future Large Systems Following on from the improvements made in 4 1 Xen now supports even larger systems with up to 4095 host CPUs and up to 512 guest CPUs In addition toolstack feature like the ability to automatically create a CPUPOOL per NUMA node and more intelligent placement of guest VCPUs on NUMA nodes have further improved the Xen experience on large systems Other new features such as multiple PCI segment support have also made a positive impact on such systems Improved security The XSM Flask subsystem has seen several enhancements including improved support for disaggregated systems and a rewritten example policy which is clearer and simpler to modify to suit local requirements Documentation The Xen documentation has been much improved both the in tree documentation and the wiki This is in no small part down to the success of the Xen Document Days so thanks to all who have taken part You can find more information in the Xen 4 2 release notes the Xen 4 2 feature list and the Also see the Xen 4 x Feature Matrix Description Download Tarball tarball Xen 4 2 hypervisor and tools official source distribution signature Xen Hypervisor 4 2 Acknowledgements Contributions were made to this release by 124 individuals from 43 organizations not counting contributions to external projects such as the BSDs Linux or qemu Many thanks to everyone who contributed to this release either through code testing documentation or in any other way The

    Original URL path: http://xen.xensource.com/download/index_4.2.0.html (2016-02-13)
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  • Xen Hypervisor Source
    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 3 is a maintenance release in the 4 1 series and contains Fixes for the following critical vulnerabilities We recommend all users of the 4 0 and 4 1 stable series to update to these latest point releases CVE 2012 0217 XSA 7 PV guest privilege escalation vulnerability CVE 2012 0218 XSA 8 guest denial of service on syscall sysenter exception generation CVE 2012 2934 XSA 9 PV guest host Denial of Service CVE 2012 3432 XSA 10 HVM guest user mode MMIO emulation DoS vulnerability CVE 2012 3433 XSA 11 HVM guest destroy p2m teardown host DoS vulnerabilit Among many bug fixes and improvements over 100 since Xen 4 1 2 Highlights are Updates for the latest Intel AMD CPU revisions Bug fixes and improvements to the libxl tool stack Bug fixes for IOMMU handling device passthrough to HVM guests Bug fixes for host kexec kdump It also contains the following fixes from earlier maintenance releases 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 New XL toolstack Debug support kexec kdump Remus High Availability Device passthrough to HVM guests Interrupt handling Support for Supervisor Mode Execution

    Original URL path: http://xen.xensource.com/download/index_4.1.3.html (2016-02-13)
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  • Xen Hypervisor Source
    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 2 is a maintenance release in the 4 1 series and contains Stability improvements and bug fixes in New XL toolstack Debug support kexec kdump Remus High Availability Device passthrough to HVM guests Interrupt handling Support for Supervisor Mode Execution Protection SMEP It also contains the Xen 4 1 1 fixes 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

    Original URL path: http://xen.xensource.com/download/index_4.1.2.html (2016-02-13)
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  • Xen Hypervisor Source
    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 Description Download Tarball tarball Xen 4 1 1 hypervisor and tools official source distribution

    Original URL path: http://xen.xensource.com/download/index_4.1.1.html (2016-02-13)
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  • Xen Hypervisor Source
    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 Description

    Original URL path: http://xen.xensource.com/download/index_4.1.0.html (2016-02-13)
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  • Xen Hypervisor Source
    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 3 is a maintenance release in the 4 0 series and contains Stability improvements and bug fixes in New XL toolstack Debug support kexec kdump Remus High Availability Device passthrough to HVM guests Interrupt handling Support for Supervisor Mode Execution Protection SMEP It also contains the Xen 4 0 2 and older fixes 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 Description Download

    Original URL path: http://xen.xensource.com/download/index_4.0.3.html (2016-02-13)
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  • Xen Hypervisor Source
    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 Description Download Tarball tarball Xen 4 0 2 hypervisor and tools official source distribution signature News Press Releases Blog Resources Wiki Sources Downloads

    Original URL path: http://xen.xensource.com/download/index_4.0.2.html (2016-02-13)
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