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    PASS-THROUGH AND EMULATION IN A VIRTUAL MACHINE ENVIRONMENT
    2.
    发明申请
    PASS-THROUGH AND EMULATION IN A VIRTUAL MACHINE ENVIRONMENT 有权
    虚拟机环境中的通过和仿真

    公开(公告)号：US20090119087A1

    公开(公告)日：2009-05-07

    申请号：US12179402

    申请日：2008-07-24

    申请人： Boon Seong ANG ,  Mallik MAHALINGAM ,  Ronghua ZHANG ,  Andrew LAMBETH

    发明人： Boon Seong ANG ,  Mallik MAHALINGAM ,  Ronghua ZHANG ,  Andrew LAMBETH

    IPC分类号： G06F9/455

    CPC分类号： G06F9/45558 ,  G06F2009/45579

    摘要： A virtual device emulated in software and included in a virtual machine is provided in a virtualized computer system. The virtual device includes an emulation mode and a pass through mode. The emulation mode is used for a first plurality of device operations. The pass through mode is used for a second plurality of device operations. The virtual device is configured to communicate with a physical device and each of the second plurality of device operations are configured to be handled by the physical device. The virtual device also includes a switching logic to switch between the emulation mode and the pass through mode based on a device operation to be performed by the virtual machine of the virtual device.

    摘要翻译： 在虚拟化计算机系统中提供以软件模拟并且包括在虚拟机中的虚拟设备。 虚拟设备包括仿真模式和通过模式。 仿真模式用于第一多个设备操作。 通过模式用于第二多个设备操作。 虚拟设备被配置为与物理设备通信，并且第二多个设备操作中的每一个被配置为由物理设备处理。 虚拟设备还包括基于要由虚拟设备的虚拟机执行的设备操作的在仿真模式和通过模式之间切换的切换逻辑。

    Partial Copying of Data to Transmit Buffer for Virtual Network Device
    3.
    发明申请
    Partial Copying of Data to Transmit Buffer for Virtual Network Device 有权
    将数据部分复制到虚拟网络设备的发送缓冲区

    公开(公告)号：US20100095045A1

    公开(公告)日：2010-04-15

    申请号：US12639590

    申请日：2009-12-16

    申请人： Walter Andrew LAMBETH ,  Mallik MAHALINGAM

    发明人： Walter Andrew LAMBETH ,  Mallik MAHALINGAM

    IPC分类号： G06F12/08 ,  G06F12/00 ,  G06F9/455

    CPC分类号： G06F9/45558 ,  G06F2009/45595

    摘要： In a virtualized computer system, a network frame is transmitted from a virtual machine using a network interface device, possibly through a virtual switch, by copying only a part of the network frame to the transmit buffers that have pre-translated mappings from guest physical addresses to hypervisor virtual addresses and to machine addresses. The length of the part of the network frame that is copied to the transmit buffers may be variable.

    摘要翻译： 在虚拟化计算机系统中，可以通过虚拟交换机使用网络接口设备从虚拟机发送网络帧，通过仅将网络帧的一部分复制到具有来自客体物理地址的预翻译映射的发送缓冲器 到管理程序虚拟地址和机器地址。 复制到发送缓冲区的网络帧的一部分的长度可能是可变的。

    STORAGE AREA NETWORK ACCESS FOR VIRTUAL MACHINES
    4.
    发明申请
    STORAGE AREA NETWORK ACCESS FOR VIRTUAL MACHINES 有权
    存储区网络访问虚拟机

    公开(公告)号：US20120185852A1

    公开(公告)日：2012-07-19

    申请号：US13429044

    申请日：2012-03-23

    申请人： Daniel J. SCALES ,  Mallik MAHALINGAM

    发明人： Daniel J. SCALES ,  Mallik MAHALINGAM

    IPC分类号： G06F9/455

    CPC分类号： G06F9/455 ,  G06F9/45558 ,  H04L67/1097

    摘要： Techniques for enabling a virtual machine (VM) executing on a physical node to access a partition of a storage system are described. One embodiment associates an identifier with the VM for use when communicating with the storage system, wherein the identifier differs from a default identifier of a host bust adapter (HBA) usable by the physical node to communicate with the storage system.

    摘要翻译： 描述用于使在物理节点上执行的虚拟机（VM）访问存储系统的分区的技术。 一个实施例将标识符与VM进行关联以在与存储系统通信时使用，其中标识符与物理节点可用以与存储系统通信的主机胸围适配器（HBA）的默认标识符不同。

    Selecting Between Pass-Through and Emulation in a Virtual Machine Environment
    5.
    发明申请
    Selecting Between Pass-Through and Emulation in a Virtual Machine Environment 有权
    在虚拟机环境中选择通过和仿真

    公开(公告)号：US20090119684A1

    公开(公告)日：2009-05-07

    申请号：US12264798

    申请日：2008-11-04

    申请人： Mallik MAHALINGAM ,  Boon Seong ANG ,  Pankaj THAKKAR

    发明人： Mallik MAHALINGAM ,  Boon Seong ANG ,  Pankaj THAKKAR

    IPC分类号： G06F9/455

    CPC分类号： G06F9/45558 ,  G06F2009/45579

    摘要： According to one or more embodiments a logical virtual device may provide the desired functionality using either a virtual device or a physical device connected to a virtual machine. When the physical device is available, a guest operating system executing on a virtual machine (VM) can be instructed to utilize the physical device. When the VM is migrated between hosts of different underlying hardware, or when the physical device becomes unavailable, e.g., through dynamic reconfiguration or reallocation of physical resources, the guest operating system can be instructed to utilize the virtual device instead.

    摘要翻译： 根据一个或多个实施例，逻辑虚拟设备可以使用连接到虚拟机的虚拟设备或物理设备来提供期望的功能。 当物理设备可用时，可以指示在虚拟机（VM）上执行的客户机操作系统利用物理设备。 当VM在不同底层硬件的主机之间迁移时，或者当物理设备变得不可用时，例如通过动态重新配置或重新分配物理资源时，可以指示客户操作系统来代替使用虚拟设备。

    PERFORMING NETWORK CORE DUMP WITHOUT DRIVERS
    6.
    发明申请
    PERFORMING NETWORK CORE DUMP WITHOUT DRIVERS 有权
    在没有驱动程序的情况下执行网络核心转移

    公开(公告)号：US20120254667A1

    公开(公告)日：2012-10-04

    申请号：US13078156

    申请日：2011-04-01

    申请人： Ronghua ZHANG ,  Saleem ABDULRASOOL ,  Mallik MAHALINGAM ,  Boon Seong ANG

    发明人： Ronghua ZHANG ,  Saleem ABDULRASOOL ,  Mallik MAHALINGAM ,  Boon Seong ANG

    IPC分类号： G06F15/16 ,  G06F15/173 ,  G06F11/22

    CPC分类号： G06F11/0778 ,  G06F11/0748

    摘要： Core dump is performed over a network without relying on network device drivers. Instead of network device drivers, firmware of network devices that is typically used during boot is preserved in memory post-boot, and one or more application program interfaces of the firmware are invoked to perform the network core dump. For ease of implementation, a network bootstrap program that has standard application program interfaces for calling into the firmware of network devices may be invoked when performing core dump over the network.

    摘要翻译： 核心转储通过网络执行，而不依赖于网络设备驱动程序。 代替网络设备驱动程序，通常在引导过程中使用的网络设备的固件将保留在内存后引导中，并且会调用固件的一个或多个应用程序接口来执行网络核心转储。 为了便于实现，可以在通过网络执行核心转储时调用具有用于调用网络设备的固件的标准应用程序接口的网络引导程序。