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    Large page optimizations in a virtual machine environment
    1.
    发明授权
    Large page optimizations in a virtual machine environment 有权
    虚拟机环境中的大页面优化

    公开(公告)号：US07475183B2

    公开(公告)日：2009-01-06

    申请号：US11299409

    申请日：2005-12-12

    申请人： Eric P. Traut ,  Idan Avraham ,  Matthew D. Hendel

    发明人： Eric P. Traut ,  Idan Avraham ,  Matthew D. Hendel

    IPC分类号： G06F12/10

    CPC分类号： G06F9/45504

    摘要： Provided are optimizations to the memory virtualization model employed in a virtual machine environment. An opportunistic hypervisor page mapping process is used in order to utilize large memory pages in a virtual machine environment. Using these optimizations, physical memory is being virtualized for the virtual machine in a manner that allows the operating system (OS) running within the virtual machine to take real and full advantage of large physical memory pages.

    摘要翻译： 提供了在虚拟机环境中使用的内存虚拟化模型的优化。 为了在虚拟机环境中利用大的内存页，使用机会性管理程序页面映射过程。 使用这些优化，物理内存正以虚拟机虚拟化，从而允许虚拟机中运行的操作系统（OS）充分利用大型物理内存页面。

    Enhanced shadow page table algorithms
    5.
    发明授权
    Enhanced shadow page table algorithms 有权
    增强的影子页表算法

    公开(公告)号：US07650482B2

    公开(公告)日：2010-01-19

    申请号：US11849774

    申请日：2007-09-04

    申请人： Eric P. Traut ,  Matthew D. Hendel ,  Rene Antonio Vega

    发明人： Eric P. Traut ,  Matthew D. Hendel ,  Rene Antonio Vega

    IPC分类号： G06F9/26

    CPC分类号： G06F12/1036 ,  G06F12/1009 ,  G06F12/109

    摘要： Enhanced shadow page table algorithms are presented for enhancing typical page table algorithms. In a virtual machine environment, where an operating system may be running within a partition, the operating system maintains it's own guest page tables. These page tables are not the real page tables that map to the real physical memory. Instead, the memory is mapped by shadow page tables maintained by a virtualing program, such as a hypervisor, that virtualizes the partition containing the operating system. Enhanced shadow page table algorithms provide efficient ways to harmonize the shadow page tables and the guest page tables. Specifically, by using tagged translation lookaside buffers, batched shadow page table population, lazy flags, and cross-processor shoot downs, the algorithms make sure that changes in the guest pages tables are reflected in the shadow page tables.

    摘要翻译： 提出了增强的影子页表算法，用于增强典型的页表算法。 在虚拟机环境中，操作系统可能在分区内运行，操作系统维护它自己的访客页表。 这些页表不是映射到真实物理内存的真实页表。 相反，内存由虚拟化程序（例如虚拟机管理程序）维护的影子页表映射，虚拟化包含操作系统的分区。 增强的影子页表算法提供了有效的方式来协调阴影页表和访客页表。 具体来说，通过使用标记的翻译后备缓冲区，批量阴影页表群，延迟标记和跨处理器拍摄，算法确保访客页表中的更改反映在影子页表中。

    Enhanced shadow page table algorithms
    6.
    发明授权
    Enhanced shadow page table algorithms 有权
    增强的影子页表算法

    公开(公告)号：US07299337B2

    公开(公告)日：2007-11-20

    申请号：US11128665

    申请日：2005-05-12

    申请人： Eric P. Traut ,  Matthew D. Hendel ,  Rene Antonio Vega

    发明人： Eric P. Traut ,  Matthew D. Hendel ,  Rene Antonio Vega

    IPC分类号： G06F9/26

    CPC分类号： G06F12/1036 ,  G06F12/1009 ,  G06F12/109

    摘要： Enhanced shadow page table algorithms are presented for enhancing typical page table algorithms. In a virtual machine environment, where an operating system may be running within a partition, the operating system maintains it's own guest page tables. These page tables are not the real page tables that map to the real physical memory. Instead, the memory is mapped by shadow page tables maintained by a virtualing program, such as a hypervisor, that virtualizes the partition containing the operating system. Enhanced shadow page table algorithms provide efficient ways to harmonize the shadow page tables and the guest page tables. Specifically, by using tagged translation lookaside buffers, batched shadow page table population, lazy flags, and cross-processor shoot downs, the algorithms make sure that changes in the guest pages tables are reflected in the shadow page tables.

    摘要翻译： 提出了增强的影子页表算法，用于增强典型的页表算法。 在虚拟机环境中，操作系统可能在分区内运行，操作系统维护它自己的访客页表。 这些页表不是映射到真实物理内存的真实页表。 相反，内存由虚拟化程序（例如虚拟机管理程序）维护的影子页表映射，虚拟化包含操作系统的分区。 增强的影子页表算法提供了有效的方式来协调阴影页表和访客页表。 具体来说，通过使用标记的翻译后备缓冲区，批量阴影页表群，延迟标记和跨处理器拍摄，算法确保访客页表中的更改反映在影子页表中。

    Concurrent virtual machine snapshots and restore
    7.
    发明申请
    Concurrent virtual machine snapshots and restore 有权
    并发虚拟机快照和还原

    公开(公告)号：US20080022032A1

    公开(公告)日：2008-01-24

    申请号：US11487031

    申请日：2006-07-13

    申请人： Andrew Ernest Nicholas ,  Aaron S. Giles ,  Eric P. Traut ,  Idan Avraham ,  Xiongjian Fu ,  Osama M. Salem

    发明人： Andrew Ernest Nicholas ,  Aaron S. Giles ,  Eric P. Traut ,  Idan Avraham ,  Xiongjian Fu ,  Osama M. Salem

    IPC分类号： G06F12/00

    CPC分类号： G06F11/1469 ,  G06F9/4418 ,  G06F9/45558 ,  G06F11/1438 ,  G06F11/1482 ,  G06F11/1484 ,  G06F2009/45575 ,  G06F2201/815 ,  G06F2201/84

    摘要： Various mechanisms are disclosed herein for the saving and restoring of virtual machine environment state. For example, virtual machine state can be either be saved or (multiple) snapshots can be taken of the virtual machine state. In the latter case, virtual processors can be allowed to run while the memory of the virtual machine state is being saved. In either case, virtual devices associated with the virtual machine environment can be quiesced such that these devices can prepare themselves to be saved. Once such virtual devices and memory are saved, they can also be restored. For example, restoration of memory can occur while virtual processors are running at the same time. And, moreover, restoration can occur in batches of pages, thus optimizing the response time for restoring saved data.

    摘要翻译： 本文公开了用于保存和恢复虚拟机环境状态的各种机制。 例如，可以保存虚拟机状态，或者可以采用虚拟机状态的（多个）快照。 在后一种情况下，可以允许虚拟处理器在虚拟机状态的存储器被保存时运行。 在任一种情况下，与虚拟机环境相关联的虚拟设备都可以停顿，以便这些设备可以准备好自己保存。 一旦这样的虚拟设备和内存被保存，它们也可以恢复。 例如，当虚拟处理器同时运行时，可能会发生内存的恢复。 而且，还可以批量进行页面恢复，从而优化恢复保存的数据的响应时间。

    Systems and Methods for a Disaster Recovery System Utilizing Virtual Machines Running on at Least Two Host Computers in Physically Different Locations
    8.
    发明申请
    Systems and Methods for a Disaster Recovery System Utilizing Virtual Machines Running on at Least Two Host Computers in Physically Different Locations 有权
    使用在身体不同位置的至少两台主机上运行的虚拟机的灾难恢复系统的系统和方法

    公开(公告)号：US20110047548A1

    公开(公告)日：2011-02-24

    申请号：US12917312

    申请日：2010-11-01

    申请人： Eric P. Traut

    发明人： Eric P. Traut

    IPC分类号： G06F9/455

    CPC分类号： G06F11/2025 ,  G06F11/1438 ,  G06F11/2038 ,  G06F11/2097

    摘要： The present invention is directed to systems and methods for providing disaster recovery services using virtual machines. The invention provides an inexpensive and minimally intrusive way to provide disaster recovery services including recovery of the state of computer processors and devices. The system includes a production host and a backup host that communicate via a communications link. The state of the processor and devices on the production host are periodically stored onto backup host and can be restored in the event of an emergency. Additionally, the invention includes two business methods for utilizing the system and methods for providing disaster recovery services.

    摘要翻译： 本发明涉及使用虚拟机提供灾难恢复服务的系统和方法。 本发明提供了廉价和最小的侵入方式来提供灾难恢复服务，包括恢复计算机处理器和设备的状态。 该系统包括通过通信链路进行通信的生产主机和备份主机。 处理器和生产主机上的设备的状态会定期存储在备份主机上，并在紧急情况下恢复。 此外，本发明包括利用系统的两种业务方法和用于提供灾难恢复服务的方法。

    Partition bus
    9.
    发明授权
    Partition bus 有权
    分区巴士

    公开(公告)号：US07689800B2

    公开(公告)日：2010-03-30

    申请号：US11128647

    申请日：2005-05-12

    申请人： Jacob Oshins ,  Peter L. Johnston ,  Eric P. Traut ,  Nathan Lewis ,  Jeffrey Kinsey

    发明人： Jacob Oshins ,  Peter L. Johnston ,  Eric P. Traut ,  Nathan Lewis ,  Jeffrey Kinsey

    IPC分类号： G06F12/00

    CPC分类号： G06F9/544 ,  G06F9/45537

    摘要： A method and system are provided for integrating partitions in a virtual machine environment. Specifically, a partition bus is provided, where the partition bus operatively connects partitions in such a way that it functions as a data transport mechanism allowing for data transfer and device sharing between partitions. The partition bus relies on virtualizing software in order to establish itself and to establish channels of communication between partitions and to inject interrupts to partitions where it is appropriate to do so. Furthermore, the partition bus employs such mechanisms ring buffers, transfer pages, and memory map changes to transfer information (requests and data). Furthermore, it uses policy agents to decide when information should be transferred or when devices should be shared among partitions. Lastly, it employs various mechanisms to ensure smooth integration between partitions, which includes remote services that have proxy devices and device versioning functionalities.

    摘要翻译： 提供了一种在虚拟机环境中集成分区的方法和系统。 具体地说，提供了分区总线，其中分区总线以这样的方式可操作地连接分区，使得其用作数据传输机制，允许分区之间的数据传输和设备共享。 分区总线依赖于虚拟化软件，以便建立自身并建立分区之间的通信通道，并将中断注入适当的分区。 此外，分区总线使用环形缓冲器，传送页面和存储器映射变化来传送信息（请求和数据）。 此外，它使用策略代理来决定何时应该传输信息，或者在分区之间共享设备。 最后，它采用各种机制来确保分区之间的平滑集成，其中包括具有代理设备和设备版本控制功能的远程服务。

    Method for forking or migrating a virtual machine
    10.
    发明授权
    Method for forking or migrating a virtual machine 有权
    用于划分或迁移虚拟机的方法

    公开(公告)号：US07313793B2

    公开(公告)日：2007-12-25

    申请号：US10193531

    申请日：2002-07-11

    申请人： Eric P. Traut ,  Rene A. Vega

    发明人： Eric P. Traut ,  Rene A. Vega

    IPC分类号： G06F9/455

    CPC分类号： G06F9/4856 ,  G06F9/45537

    摘要： A method is provided for increasing the efficiency of virtual machine processing. A parent virtual machine is provided on a host computer. The parent virtual machine is temporarily or permanently suspended. A child virtual machine is created at a new location by forking the parent virtual machine. The child virtual machine may not initially include all the stored data that is associated with the parent virtual machine.

    摘要翻译： 提供了一种提高虚拟机处理效率的方法。 父虚拟机在主机上提供。 父虚拟机暂时或永久挂起。 通过分叉父虚拟机在新位置创建子虚拟机。 子虚拟机可能最初不包括与父虚拟机相关联的所有存储的数据。