公开(公告)号：US08327390B2

公开(公告)日：2012-12-04

申请号：US12492045

申请日：2009-06-25

申请人： Ulfar Us Erlingsson ,  Edward P. Wobber ,  Paul Barham ,  Thomas Roeder

发明人： Ulfar Us Erlingsson ,  Edward P. Wobber ,  Paul Barham ,  Thomas Roeder

IPC分类号： G06F3/00

CPC分类号： G06F9/4411 ,  G06F9/4401

摘要： Extensions to operating systems or software applications can be hosted in virtual environments to fault isolate the extension. A generic proxy extension invoked by a host process can coordinate the invocation of an appropriate extension in a virtual process that can provide the same support APIs as the host process. Furthermore, a user mode context can be provided to the extension in the virtual process through memory copying or page table modifications. In addition, the virtual process, especially a virtual operating system process running on a virtual machine, can be efficiently started by cloning a coherent state. A coherent state can be created when a virtual machine starts up, or when the computing device starts up and the appropriate parameters are observed and saved. Alternatively, the operating system can create a coherent state by believing there is an additional CPU during the boot process.

摘要翻译： 操作系统或软件应用程序的扩展可以托管在虚拟环境中，以隔离扩展。 由主机进程调用的通用代理扩展可以协调在虚拟进程中调用适当的扩展，该虚拟进程可以提供与主机进程相同的支持API。 此外，可以通过存储器复制或页表修改在虚拟过程中向用户模式上下文提供。 此外，可以通过克隆一致的状态来有效地启动虚拟进程，特别是在虚拟机上运行的虚拟操作系统进程。 当虚拟机启动时，或者计算设备启动并且观察并保存适当的参数时，可以创建一致的状态。 或者，操作系统可以通过相信在引导过程中有额外的CPU来创建一致的状态。