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  • No current or proposed solution has the necessary flexibility to support the addition of arbitrary device emulation The current HVM device emulation qemu dm is monolithic synchronous and GPL licensed 1 1 mapping solutions only support a single domain s access to arbitrary devices IOMMU based solutions require instances of the desired hardware for each domain Extensions to Xen are presented that define an interface for generic external device emulation

    Original URL path: http://xen.xensource.com/files/xensummit_fall07/09_abstract.txt (2016-02-13)
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  • HVM guests This results in a divergance of capabilities between paravirt and fullyvirt guests duplication of implementations The pair of VNC servers is one example This talk will illustrate ways in which QEMU can be used extended to close the

    Original URL path: http://xen.xensource.com/files/xensummit_fall07/10_abstract.txt (2016-02-13)
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  • Tom Woller AMD AMD Xen Roadmap Discuss current testing recently completed projects and current future working projects at AMD

    Original URL path: http://xen.xensource.com/files/xensummit_fall07/11_abstract.txt (2016-02-13)
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  • and various on going Xen related projects at Intel The projects included are VT enabling server power management Px Cx and Tx NUMA multi core support live migration with VT d and hybrid virtualization The hybrid virtualization provides HVM guests

    Original URL path: http://xen.xensource.com/files/xensummit_fall07/12_abstract.txt (2016-02-13)
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  • I O performance We study the impact of the VMM scheduler on processor and I O performance using multiple guest domains concurrently running different combinations of processor intensive bandwidth intensive and latency sensitive applications These applications are evaluated on a variety different scheduler configurations within the Xen VMM We find that in general the scheduler focuses on fairly sharing processor resources which can result in poor and or unpredictable performance

    Original URL path: http://xen.xensource.com/files/xensummit_fall07/13_abstract.txt (2016-02-13)
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  • a driver domain separated from a control domain s Linux kernel and implementation of access control to physical resources and logical resources to protect a system from Phishing attack A video demo will be also shown This talk is comprised

    Original URL path: http://xen.xensource.com/files/xensummit_fall07/14_abstract.txt (2016-02-13)
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  • data center applications are increasing dramatically For example many financial institutions report data doubling every 6 months Delivering this data demands high bandwidth networks and I O server systems Scalable storage and high performance networks have caused divergence with data centers being required to bear the overheads of supporting multiple different network types The flexibility of server virtualisation comes at the cost of I O performance This bottleneck has been perceived to be a hindrance to greater levels of virtualisation deployment This talk will present a perspective on how these challenges have been met by industry In particular 10GBASE T Ethernet promises to support convergence of storage and LAN traffic onto a single low cost and easy to use network ISVs are responding to the demands of supporting efficient I O for virtualised operating systems with features such as virtualised Ethernet controller interfaces Software vendors have made significant investments into iSCSI implementations providing a robust yet low cost and high performance storage platform In doing so we describe the extensions to the Xen Front and Back end driver APIs which have recently been submitted accepted into the Xen driver model This hardware agnostic extension enables ISV provided guest plugins to

    Original URL path: http://xen.xensource.com/files/xensummit_fall07/15_abstract.txt (2016-02-13)
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  • 4 plataform running a 32 bit version of Xen to a more modern plataform based on the Intel dual core processor running a 64 bit Xen While the 64 bit version of Xen reduces some of the overheads such as mapping domain pages in Xen space to do grant copies it also introduces additional overheads such as the overhead to trap guest system calls The new results compare Xen and linux in both architectures and provide additional insights into the major sources of Xen overhead Based on these resuts we describe a few optimizations that can be integrated in the current Xen para virtualized network drivers without any changes to the current IO channel protocol We then discuss the new IO channel protocol netchannel2 which address several other issues identified in our Xen network performance analysis We provide both an overview of the netchannel2 design and discuss how its new features should improve network performance We also discuss how the current Xen grant mechanism should be extended to support the new features of netchannel2 We finaly present experimental performance results of a hacked implementation of Xen networking which simulates the benefits of netchannel2 features including grant reuse lazy page mapping

    Original URL path: http://xen.xensource.com/files/xensummit_fall07/16_abstract.txt (2016-02-13)
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