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    • 3. 发明授权
    • Hypervisor-based stack pre-fetch cache
    • 基于管理程序的堆栈预取缓存
    • US08972985B2
    • 2015-03-03
    • US13480533
    • 2012-05-25
    • Paul M. CurtisAlexander Ferguson
    • Paul M. CurtisAlexander Ferguson
    • G06F9/455
    • G06F12/1009G06F9/45558G06F12/0862G06F2009/45583G06F2212/151G06F2212/451
    • A hypervisor, associated with a device, receives guest operating system code that includes an instruction to switch to a new stack provided in hardware associated with the device. The hypervisor provides, to a guest page table associated with the hypervisor, a query for writable pages provided in proximity to the new stack, and receives, from the guest page table and based on the query, the writable pages provided in proximity to the new stack. The hypervisor provides test instructions to the new stack in order to determine whether one or more faults occur, and switches from a current stack to the new stack when no faults occur based on the test instructions.
    • 与设备相关联的管理程序接收客户操作系统代码,其包括切换到与该设备相关联的硬件中提供的新堆栈的指令。 虚拟机管理程序向与虚拟机管理程序相关联的访客页表提供对在新堆栈附近提供的可写页面的查询,并且从访客页表中并基于查询接收在新的附近提供的可写页面 堆栈 虚拟机管理程序向新堆栈提供测试指令,以便确定是否发生一个或多个故障,并且根据测试指令不发生故障时,从当前堆栈切换到新堆栈。
    • 4. 发明申请
    • METHOD OF AND A SYSTEM FOR AUTONOMOUSLY IDENTIFYING WHICH NODE IN A TWO-NODE SYSTEM HAS FAILED
    • 用于自动识别两个节点系统中的节点的方法和系统已经失败
    • US20090290483A1
    • 2009-11-26
    • US12126547
    • 2008-05-23
    • Paul M. CurtisMaxim G. Smith
    • Paul M. CurtisMaxim G. Smith
    • G01R31/08
    • G06F11/2028G06F11/2007G06F11/2038G06F11/2242
    • A method of and a system for autonomously identifying which node in a two-node system has failed are described. The system includes two nodes and a fault-tolerant communication fabric. The fabric defines a plurality of communication paths connecting the two nodes, and fault-tolerant loop-back communication in which each node can send a message to itself utilizing at least one switch structure of the fabric. In addition, each of the two nodes includes logic for performing the service; logic for testing the functionality of the respective node; logic for sending test result messages to both nodes; fault-isolation logic for analyzing test result messages from both nodes; and logic for disabling the other node from performing the service only if the fault-isolation logic determines that the respective node is capable of successfully performing the service and also determines that the other node is incapable of successfully performing the service.
    • 描述了一种用于自主识别双节点系统中的哪个节点已经失败的方法和系统。 该系统包括两个节点和容错通信结构。 该结构定义了连接两个节点的多个通信路径和容错环回通信,其中每个节点可以使用该结构的至少一个交换结构向其自身发送消息。 此外,两个节点中的每一个包括用于执行服务的逻辑; 用于测试相应节点的功能的逻辑; 将测试结果消息发送到两个节点的逻辑; 用于分析来自两个节点的测试结果消息的故障隔离逻辑; 以及仅当所述故障隔离逻辑确定所述相应节点能够成功执行所述服务并且还确定所述另一节点不能成功执行所述服务的情况下,禁止所述另一节点执行所述服务的逻辑。