公开(公告)号：US20080046889A1

公开(公告)日：2008-02-21

申请号：US11926967

申请日：2007-10-29

申请人： William Armstrong ,  Peter Heyrman ,  Naresh Nayar

发明人： William Armstrong ,  Peter Heyrman ,  Naresh Nayar

IPC分类号： G06F9/46

CPC分类号： G06F9/52 ,  G06F9/5016 ,  G06F9/5022 ,  Y10S707/99953 ,  Y10S707/99957

摘要： An apparatus, program product and method support the deallocation of a data structure in a multithreaded computer without requiring the use of computationally expensive semaphores or spin locks. Specifically, access to a data structure is governed by a shared pointer that, when a request is received to deallocate the data structure, is initially set to a value that indicates to any thread that later accesses the pointer that the data structure is not available. In addition, to address any thread that already holds a copy of the shared pointer, and thus is capable of accessing the data structure via the shared pointer after the initiation of the request, all such threads are monitored to determine whether any thread is still using the shared pointer by determining whether any thread is executing program code that is capable of using the shared pointer to access the data structure. Once this condition is met, it is ensured that no thread can potentially access the data structure via the shared pointer, and as such, the data structure may then be deallocated.

摘要翻译： 一种装置，程序产品和方法支持多线程计算机中数据结构的释放，而不需要使用计算上昂贵的信号量或旋转锁。 具体来说，访问数据结构由共享指针控制，当接收到请求以解除分配数据结构时，共享指针最初被设置为指示稍后访问指针的任何线程数据结构不可用的值。 此外，为了解决已经拥有共享指针的副本的任何线程，并且因此能够在请求启动之后通过共享指针访问数据结构，所有这些线程被监视以确定是否有任何线程仍在使用 该共享指针通过确定任何线程是否正在执行能够使用共享指针来访问数据结构的程序代码。 一旦满足此条件，就确保没有线程可以通过共享指针潜在地访问数据结构，因此可以解除分配数据结构。

公开(公告)号：US20060230400A1

公开(公告)日：2006-10-12

申请号：US11094712

申请日：2005-03-30

申请人： William Armstrong ,  Naresh Nayar

发明人： William Armstrong ,  Naresh Nayar

IPC分类号： G06F9/455

CPC分类号： G06F9/5077 ,  G06F9/4881

摘要： A method, apparatus, system, and signal-bearing medium that, in an embodiment, calculate a preemption credit for a partition if a virtual processor is preempted and the partition is unable to receive an entitled capacity of physical processor cycles during a dispatch window. The preemption credit is the portion of the entitled capacity that the partition is unable to receive. As long as the partition has a remaining preemption credit, in subsequent dispatch windows, a portion of the preemption credit is allocated to the virtual processor, and the preemption credit is reduced. In this way, in an embodiment, shared processor partitions may be ensured of receiving their entitled allocation of processor cycles.

公开(公告)号：US20060168214A1

公开(公告)日：2006-07-27

申请号：US10977800

申请日：2004-10-29

申请人： William Armstrong ,  Richard Arndt ,  Michael Benhase ,  Lawrence Blount ,  Yu-Cheng Hsu ,  Naresh Nayar

发明人： William Armstrong ,  Richard Arndt ,  Michael Benhase ,  Lawrence Blount ,  Yu-Cheng Hsu ,  Naresh Nayar

IPC分类号： G06F15/16 ,  G06F15/173

CPC分类号： G06F9/5077 ,  G06F9/4881 ,  G06F2209/5014

摘要： An apparatus, program product and method guarantee a period of time in which a partition's use of a resource will not be preempted by a hypervisor. An inquiry communication from the partition prompts the hypervisor to determine if work is pending for the hypervisor. If not, the hypervisor sends a guarantee response ensuring the period of uninterrupted use of the resource by the partition.

摘要翻译： 设备，程序产品和方法保证分区对资源的使用不会被管理程序抢占的时间段。 分区的查询通信将提示管理程序确定虚拟机管理程序是否正在等待工作。 如果没有，则管理程序发送保证响应，确保分区不间断使用资源的时间。

公开(公告)号：US20050278722A1

公开(公告)日：2005-12-15

申请号：US10857744

申请日：2004-05-28

申请人： William Armstrong ,  Christopher Francois ,  Naresh Nayar

发明人： William Armstrong ,  Christopher Francois ,  Naresh Nayar

IPC分类号： G06F9/46 ,  G06F9/50

CPC分类号： G06F9/5077

摘要： An apparatus, program product and method distributes work within a logically partitioned computer system by binding a virtual processor or other resource of a hypervisor partition to a partition or physical resource. The partition or physical resource to which the virtual resource is bound is the same partition or physical resource upon whose behalf the hypervisor resource does work. The partition requesting work of the hypervisor partition is thus penalized by virtue the virtual resource using a physical resource owned by the requesting partition.

摘要翻译： 装置，程序产品和方法通过将虚拟机管理程序分区的虚拟处理器或其他资源绑定到分区或物理资源来在逻辑分区的计算机系统内分发工作。 虚拟资源绑定到的分区或物理资源是虚拟机管理程序资源运行的相同的分区或物理资源。 因此，要求虚拟机管理程序分区的工作的分区由于使用由请求分区拥有的物理资源的虚拟资源而受到惩罚。

公开(公告)号：US20060242442A1

公开(公告)日：2006-10-26

申请号：US11110180

申请日：2005-04-20

申请人： William Armstrong ,  Michael Corrigan ,  Naresh Nayar ,  Scott Swaney

发明人： William Armstrong ,  Michael Corrigan ,  Naresh Nayar ,  Scott Swaney

IPC分类号： G06F1/12

CPC分类号： G06F1/14

摘要： A method, apparatus, and computer program product are disclosed in a data processing system for providing a virtualized time base in a logically partitioned data processing system. A time base is determined for each one of multiple processor cores. The time base is used to indicate a current time to one of the processor cores for which the time base is determined. The time bases are synchronized together for the processor cores such that each one of the processor cores includes its own copy of a synchronized time base. For one of the processor cores, a virtualized time base is generated that is different from the synchronized time base but that remains synchronized with at least a portion of the synchronized time base. The processor core utilizes the virtualized time base instead of the synchronized time base for indicating the current time to the processor core. The synchronized time bases and the portion of the virtualized time base remaining in synchronization together.

公开(公告)号：US20050021936A1

公开(公告)日：2005-01-27

申请号：US10624808

申请日：2003-07-22

申请人： David Bailey ,  William Armstrong ,  Naresh Nayar ,  Gregory Nordstrom

发明人： David Bailey ,  William Armstrong ,  Naresh Nayar ,  Gregory Nordstrom

IPC分类号： G06F9/00

CPC分类号： G06F9/5077

摘要： A partition manager includes an I/O reconfiguration mechanism and a logical partition suspend/resume mechanism that work together to perform autonomic I/O reconfiguration in a logically partitioned computer system. When I/O reconfiguration is required, the affected logical partitions are suspended, the I/O is reconfigured, and the affected logical partitions are resumed. Because the logical partitions are suspended during I/O reconfiguration, any ghost packet that may occur when the I/O is reconfigured is ignored.

摘要翻译： 分区管理器包括I / O重新配置机制和逻辑分区挂起/恢复机制，其协同工作以在逻辑分区的计算机系统中执行自主I / O重新配置。 当需要I / O重新配置时，受影响的逻辑分区将被挂起，重新配置I / O，并恢复受影响的逻辑分区。 因为逻辑分区在I / O重新配置期间被挂起，所以当I / O被重新配置时可能发生的任何ghost数据包被忽略。

公开(公告)号：US20080077927A1

公开(公告)日：2008-03-27

申请号：US11859967

申请日：2007-09-24

申请人： William Armstrong ,  Christopher Hales ,  Naresh Nayar

发明人： William Armstrong ,  Christopher Hales ,  Naresh Nayar

IPC分类号： G06F9/50

CPC分类号： G06F9/5077 ,  G06F9/5083 ,  G06F2209/5012 ,  G06F2209/505 ,  G06F2209/508

摘要： An entitlement management system for distributing spare CPU processor resources to a plurality of deployment groups operating in a data processing system, the system comprising: a deployment group entitlement component comprising: an allocation component for allocating a plurality of micro-partitions to a deployment group; a determining component for identifying spare CPU processor cycles from a donor micro-partition and distributing the identified spare CPU processor cycles to a requester micro-partition in the deployment group; the determining component further comprises identifying when there are no further spare CPU processor cycles to be donated to any of the micro-partitions in the deployment group and communicating a request to a management entitlement component; and a management entitlement component receiving requests from at least two deployment group entitlement components and identifying if one of the deployment groups has spare CPU processor cycles to donate to a further deployment group and on a positive determination donating the spare CPU cycles to the further deployment group.

摘要翻译： 一种授权管理系统，用于向在数据处理系统中操作的多个部署组分配备用CPU处理器资源，该系统包括：部署组授权组件，包括：分配组件，用于将多个微分区分配给部署组; 用于从供体微分区识别备用CPU处理器周期并将所识别的备用CPU处理器周期分配到所述部署组中的请求者微分区的确定组件; 所述确定组件还包括识别什么时候没有进一步的备用CPU处理器周期被捐赠给所述部署组中的任何微分区并且向管理授权组件传送请求; 以及管理授权组件，其接收来自至少两个部署组授权组件的请求，并且确定其中一个部署组是否有备用CPU处理器周期捐赠给另一个部署组，并且通过肯定的确定，将备用CPU周期提供给另外的部署组 。

公开(公告)号：US20080015712A1

公开(公告)日：2008-01-17

申请号：US11781085

申请日：2007-07-20

申请人： WILLIAM ARMSTRONG ,  David Larson ,  Naresh Nayar

发明人： WILLIAM ARMSTRONG ,  David Larson ,  Naresh Nayar

IPC分类号： G05B19/18

CPC分类号： G06F9/45533 ,  G06F13/24

摘要： A method, system, and article of manufacture for processing virtual interrupts in a logically partitioned system are provided. An intelligent virtual global interrupt queue (virtual GIQ) that may be associated with a plurality of virtual processors running in a logical partition may be utilized. Upon receiving a virtual interrupt, the virtual GIQ may examine the operating states of the associated virtual processors. In an effort to ensure the virtual interrupt is processed as quickly as possible, the virtual GIQ may present the virtual interrupt to one of the associated virtual processors determined to be in an operating state best suited for processing the virtual interrupt.

摘要翻译： 提供了一种用于处理逻辑分区系统中的虚拟中断的方法，系统和制品。 可以利用可以与在逻辑分区中运行的多个虚拟处理器相关联的智能虚拟全局中断队列（虚拟GIQ）。 在接收到虚拟中断时，虚拟GIQ可以检查相关联的虚拟处理器的操作状态。 为了确保尽可能快地处理虚拟中断，虚拟GIQ可以将虚拟中断呈现给被确定为处于最适合于处理虚拟中断的操作状态的相关虚拟处理器之一。

公开(公告)号：US20070271425A1

公开(公告)日：2007-11-22

申请号：US11834202

申请日：2007-08-06

申请人： William Armstrong ,  Naresh Nayar ,  Gregory Nordstrom ,  Timothy Torzewski

发明人： William Armstrong ,  Naresh Nayar ,  Gregory Nordstrom ,  Timothy Torzewski

IPC分类号： G06F12/00

CPC分类号： G06F9/5077 ,  G06F9/542 ,  G06F2209/543 ,  G06F2209/544

摘要： A logically-partitioned computer, program product and method utilize a flexible and adaptable communication interface between a partition and a partition manager, which permits optimal handling of partition management operations such as state change operations and the like over a wide variety of circumstances. In particular, a partition is permitted to indicate, in connection with a request to perform a partition management operation, whether an asynchronous notification should be generated or suppressed in association with the performance of the partition management operation by a partition manager. As a result, asynchronous notifications are selectively generated in association with the performance of partition management operations based upon indications in the requests made by partitions for such operations.

摘要翻译： 逻辑分区计算机，程序产品和方法利用分区和分区管理器之间的灵活且可适应的通信接口，其允许在各种情况下最佳地处理诸如状态改变操作等的分区管理操作。 特别地，允许分区结合执行分区管理操作的请求来指示是否应该由分区管理器执行分区管理操作来生成或抑制异步通知。 因此，基于由用于这种操作的分区所做的请求中的指示，与分区管理操作的执行相关联地选择性地生成异步通知。

公开(公告)号：US20060253682A1

公开(公告)日：2006-11-09

申请号：US11122801

申请日：2005-05-05

申请人： William Armstrong ,  Richard Arndt ,  Michael Corrigan ,  David Engebretsen ,  Timothy Marchini ,  Naresh Nayar

发明人： William Armstrong ,  Richard Arndt ,  Michael Corrigan ,  David Engebretsen ,  Timothy Marchini ,  Naresh Nayar

IPC分类号： G06F12/00

CPC分类号： G06F3/065 ,  G06F3/0611 ,  G06F3/0673 ,  G06F12/1036 ,  G06F12/109

摘要： Managing computer memory in a computer with dynamic logical partitioning that operates transparently with respect to operating systems in logical partitions. Exemplary methods, systems, and products are described for managing computer memory in a computer with dynamic logical partitioning that include copying by a hypervisor, from page frames in one logical memory block (“LMB”) of a logical partition (“LPAR”) to page frames outside the LMB, contents of page frames having page frame numbers in a page table for an operating system in the LPAR. Embodiments typically include storing new page frame numbers in the page table, including storing by the hypervisor, for each page frame whose contents are copied, a new page frame number that identifies the page frame to which contents are copied. In typical embodiments, copying contents of page frames and storing new page frame numbers are carried out transparently with respect to the operating system.

摘要翻译： 在具有相对于逻辑分区中的操作系统透明运行的动态逻辑分区的计算机中管理计算机内存。 描述了用于在具有动态逻辑划分的计算机中管理计算机存储器的示例性方法，系统和产品，其包括由管理程序从逻辑分区（“LPAR”）的一个逻辑存储块（“LMB”）中的页面帧到 在LMB之外的页框，在LPAR中的操作系统的页表中具有页框号的页框内容。 实施例通常包括在页面表中存储新的页面帧号码，包括由管理程序存储针对其内容被复制的每个页面帧的新的页面帧号，其标识内容被复制到的页面帧。 在典型的实施例中，相对于操作系统透明地执行复印页面的内容和存储新的页面帧号码。