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1. 发明授权

US09075789B2 Methods and apparatus for interleaving priorities of a plurality of virtual processors 有权
标题翻译：用于交织多个虚拟处理器的优先级的方法和装置
公开(公告)号：US09075789B2
公开(公告)日：2015-07-07
申请号：US13710891
申请日：2012-12-11
申请人： General Dynamics C4 Systems, Inc.
发明人： Carl Frans van Schaik
IPC分类号： G06F13/26 , G06F13/24 , G06F13/34 , G06F9/48
CPC分类号： G06F13/26 , G06F9/4812 , G06F9/4818 , G06F9/4831 , G06F13/24 , G06F13/34
摘要： Methods and apparatus for interleaving priorities of a plurality of virtual processors are disclosed. A hypervisor assigns a base priority to each virtual processor and schedules one or more virtual processors to execute on one or more physical processors based on the current priority associated with each virtual processor. When the hypervisor receives an indication from one of the virtual processors that its current priority may be temporarily reduced, the hypervisor lowers the current priority of that virtual processor. The hypervisor then schedules another virtual processor to execute on a physical processor instead of the virtual processor with the temporarily reduced priority. When the hypervisor receives an interrupt for the virtual processor with the lowered priority, the hypervisor raises the priority of that virtual processor and schedules the virtual processor with the restored priority to execute on a physical processor so that processor can handle the interrupt.
摘要翻译：公开了用于交织多个虚拟处理器的优先级的方法和装置。虚拟机管理程序为每个虚拟处理器分配基本优先级，并基于与每个虚拟处理器相关联的当前优先级来调度一个或多个虚拟处理器以在一个或多个物理处理器上执行。当管理程序从虚拟处理器之一接收到其当前优先级可能被暂时减少的指示时，管理程序降低该虚拟处理器的当前优先级。管理程序然后调度另一个虚拟处理器在物理处理器上执行，而不是虚拟处理器，其优先级暂时降低。当虚拟机管理程序以优先级较低的虚拟处理器收到中断时，管理程序提高该虚拟处理器的优先级，并以恢复的优先级对虚拟处理器进行调度，以在物理处理器上执行，以便处理器可以处理中断。

2. 发明申请

US20140229940A1 METHODS AND APPARATUS FOR SYNCHRONIZING MULTIPLE PROCESSORS OF A VIRTUAL MACHINE 审中-公开
标题翻译：用于同步虚拟机的多个处理器的方法和装置
公开(公告)号：US20140229940A1
公开(公告)日：2014-08-14
申请号：US13767191
申请日：2013-02-14
申请人： General Dynamics C4 Systems, Inc.
发明人： Carl Frans van Schaik
IPC分类号： G06F9/455
CPC分类号： G06F9/45558 , G06F9/4881 , G06F9/5077 , G06F9/52 , G06F2209/483 , G06F2209/484
摘要： Methods and apparatus for synchronizing multiple virtual processors of a virtual machine are disclosed. A hypervisor schedules a first virtual processor in a virtual machine to execute using a first physical processor. Subsequently, the hypervisor receives an indication from the first virtual processor that it is waiting on a second different virtual processor. If the second virtual processor is not already running on another physical processor, the hypervisor saves the priority associated with the first virtual processor, lowers the priority associated with the first virtual processor, and schedules the second virtual processor to execute using the first physical processor or another physical processor.
摘要翻译：公开了一种用于同步虚拟机的多个虚拟处理器的方法和装置。虚拟机管理程序调度虚拟机中的第一个虚拟处理器，以使用第一个物理处理器执行。随后，管理程序从第一虚拟处理器接收它在第二个不同的虚拟处理器上等待的指示。如果第二虚拟处理器尚未在另一物理处理器上运行，则管理程序保存与第一虚拟处理器相关联的优先级，降低与第一虚拟处理器相关联的优先级，并且使用第一物理处理器调度第二虚拟处理器执行，另一个物理处理器。

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