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1. 发明授权

US08990510B2 Read-copy update system and method 有权
标题翻译：读取更新系统和方法
公开(公告)号：US08990510B2
公开(公告)日：2015-03-24
申请号：US12192378
申请日：2008-08-15
申请人： Paul E. McKenney , Orran Y. Krieger , Jonathan Appavoo , Dipankar Sarma
发明人： Paul E. McKenney , Orran Y. Krieger , Jonathan Appavoo , Dipankar Sarma
IPC分类号： G06F12/00 , G06F12/12 , G06F17/30 , G06F9/52
CPC分类号： G06F17/30377 , G06F9/526 , G06F17/30368
摘要： A method, system and computer program product for managing requests for deferred updates to shared data elements while minimizing grace period detection overhead associated with determining whether pre-existing references to the data elements have been removed. Plural update requests that are eligible for grace period detection are buffered without performing grace period detection processing. One or more conditions that could warrant commencement of grace period detection processing are monitored while the update requests are buffered. If warranted by such a condition, grace period detection is performed relative to the update requests so that they can be processed. In this way, grace period detection overhead can be amortized over plural update requests while being sensitive to conditions warranting prompt grace period detection.
摘要翻译：一种用于管理对共享数据元素的延迟更新的请求的方法，系统和计算机程序产品，同时最小化与确定是否已经删除对数据元素的预先存在的引用相关联的宽限期检测开销。缓存宽限期检测的多个更新请求，而不执行宽限期检测处理。在缓存更新请求的同时，监视可能需要开始宽限期检测处理的一个或多个条件。如果由这样的条件保证，则相对于更新请求执行宽限期检测，以便它们被处理。以这种方式，宽限期检测开销可以在多个更新请求中进行分摊，同时对需要快速宽限期检测的条件敏感。

2. 发明授权

US08495649B2 Scheduling threads having complementary functional unit usage on SMT processors 失效
标题翻译：在SMT处理器上调度具有互补功能单元使用的线程
公开(公告)号：US08495649B2
公开(公告)日：2013-07-23
申请号：US11488970
申请日：2006-07-19
申请人： Orran Y. Krieger , Bryan S. Rosenburg , Balaram Sinharoy , Robert B. Tremaine , Robert W. Wisniewski
发明人： Orran Y. Krieger , Bryan S. Rosenburg , Balaram Sinharoy , Robert B. Tremaine , Robert W. Wisniewski
IPC分类号： G06F9/46
CPC分类号： G06F9/5033
摘要： A method and system for scheduling threads on simultaneous multithreaded processors are disclosed. Hardware and operating system communicate with one another providing information relating to thread attributes for threads executing on processing elements. The operating system determines thread scheduling based on the information.
摘要翻译：公开了一种用于在同时多线程处理器上调度线程的方法和系统。硬件和操作系统彼此通信，提供与处理元件上执行的线程的线程属性相关的信息。操作系统根据信息确定线程调度。

3. 发明申请

US20120117353A1 CLIENT PARTITION SCHEDULING AND PRIORITIZATION OF SERVICE PARTITION WORK 审中-公开
标题翻译：客户分区调度和服务分区工作优先
公开(公告)号：US20120117353A1
公开(公告)日：2012-05-10
申请号：US13349071
申请日：2012-01-12
申请人： William J. Armstrong , Orran Y. Krieger , Michal Ostrowski , Randal C. Swanberg
发明人： William J. Armstrong , Orran Y. Krieger , Michal Ostrowski , Randal C. Swanberg
IPC分类号： G06F12/00
CPC分类号： G06F12/1475 , G06F9/45558 , G06F12/1491 , G06F2009/45579 , G06F2212/1056
摘要： A method in a data processing system is provided for processing a service request of a client partition. The method includes: obtaining by a service partition of the data processing system the service request from the client partition, wherein both the client and service partitions execute above a hypervisor of the data processing system; and processing the service request by the service partition utilizing a processor quantum assigned to the client partition and donated by the client partition to the service partition. The client partition controls scheduling of the service partition by queuing the service request at the client partition until the client partition decides to proceed with execution of the service request by the service partition. In one implementation, the service partition is a partition adjunct of the data processing system, which utilizes donated virtual address space of the client partition.
摘要翻译：提供数据处理系统中的方法来处理客户端分区的服务请求。该方法包括：通过数据处理系统的服务分区获取来自客户端分区的服务请求，其中客户端和服务分区都在数据处理系统的管理程序之上执行; 以及使用分配给所述客户端分区并由所述客户端分区捐赠给所述服务分区的处理器量化由所述服务分区处理所述服务请求。客户机分区通过在客户端分区排队服务请求来控制服务分区的调度，直到客户端分区决定继续执行服务分区的服务请求。在一个实现中，服务分区是数据处理系统的分区附件，其利用客户端分区的捐赠的虚拟地址空间。

4. 发明授权

US07971243B2 Security module 失效
标题翻译：安全模块
公开(公告)号：US07971243B2
公开(公告)日：2011-06-28
申请号：US11756615
申请日：2007-05-31
申请人： Paul E. McKenney , Orran Y. Krieger , Boas Betzler
发明人： Paul E. McKenney , Orran Y. Krieger , Boas Betzler
IPC分类号： G06F9/06
CPC分类号： A63F13/73 , A63F13/10 , A63F2300/201 , G06F21/123 , G06F21/445 , G06F21/6281 , G06F21/70 , G06F21/71 , G06F21/78 , G06F21/79 , G06F21/82 , G06F2221/0797 , G06F2221/2103 , G06F2221/2109 , G06F2221/2149 , H04N7/163 , H04N21/442 , H04N21/4431
摘要： A method and apparatus for restricting access of an application to computer hardware. The apparatus includes both an authentication module and a validation module. The authentication module is within the trusted firmware layer. The purpose of the authentication module is to verify a cryptographic key presented by an application. The validation module is responsive to the authentication module and limits access of the application to the computer hardware. The authentication modules may be implemented in software through a firmware call, or through a hardware register of the computer.
摘要翻译：一种用于限制应用程序访问计算机硬件的方法和装置。该装置包括认证模块和验证模块。认证模块位于受信任的固件层内。验证模块的目的是验证应用程序呈现的加密密钥。验证模块响应于认证模块，并将应用程序的访问限制到计算机硬件。认证模块可以通过固件呼叫的软件或通过计算机的硬件寄存器来实现。

5. 发明授权

US07873612B2 Atomically moving list elements between lists using read-copy update 失效
标题翻译：使用读取副本更新在列表之间使用原子移动列表元素
公开(公告)号：US07873612B2
公开(公告)日：2011-01-18
申请号：US11870668
申请日：2007-10-11
申请人： Paul E. McKenney , Orran Y. Krieger , Dipankar Sarma , Maneesh Soni
发明人： Paul E. McKenney , Orran Y. Krieger , Dipankar Sarma , Maneesh Soni
IPC分类号： G06F7/00 , G06F17/00
CPC分类号： G06F17/30958
摘要： A system, method and computer program product for atomically moving a shared list element from a first list location to a second list location includes inserting a placeholder element at the second list location to signify to readers that a move operation is underway, removing the shared list element from the first list location, re-identifying the list element to reflect its move from the first list location to the second list location, inserting it at the second list location and unlinking the placeholder element. A deferred removal of the placeholder element is performed following a period in which readers can no longer maintain references thereto. A method, system and computer program product are additionally provided for performing a lookup of a target list element that is subject to being atomically moved from a first list to a second list.
摘要翻译：用于将共享列表元素从第一列表位置原子地移动到第二列表位置的系统，方法和计算机程序产品包括在第二列表位置插入占位符元素以向读者指示正在进行移动操作，删除共享列表元素从第一列表位置重新识别列表元素以反映其从第一列表位置移动到第二列表位置，将其插入到第二列表位置并取消链接占位符元素。延迟删除占位符元素是在阅读器不再保留对其的引用的时间段之后执行的。另外提供了一种方法，系统和计算机程序产品，用于执行将被从第一列表原子地移动到第二列表的目标列表元素的查找。

6. 发明申请

US20090037908A1 PARTITION ADJUNCT WITH NON-NATIVE DEVICE DRIVER FOR FACILITATING ACCESS TO A PHYSICAL INPUT/OUTPUT DEVICE 有权
标题翻译：用于促进进入物理输入/输出设备的非本地设备驱动程序的分区调整
公开(公告)号：US20090037908A1
公开(公告)日：2009-02-05
申请号：US12110982
申请日：2008-04-28
申请人： William J. ARMSTRONG , Orran Y. KRIEGER , Michal OSTROWSKI , Randal C. SWANBERG
发明人： William J. ARMSTRONG , Orran Y. KRIEGER , Michal OSTROWSKI , Randal C. SWANBERG
IPC分类号： G06F9/455
CPC分类号： G06F12/1475 , G06F9/45558 , G06F12/1491 , G06F2009/45579 , G06F2212/1056
摘要： Dedicated access is provided to a physical input/output (I/O) device which is non-configurable by an initiating logical partition. Access is established by: initiating, by the logical partition, creation of a partition adjunct; invoking a hypervisor of the data processing system to instantiate the partition adjunct with resources donated from the initiating logical partition, the donated resources including a donated virtual address space of the logical partition and the physical I/O device; creating, by the hypervisor, the partition adjunct and assigning the donated virtual address space and donated physical I/O device to the created partition adjunct; and interfacing, by the hypervisor, the logical partition and the created partition adjunct, the interfacing including providing the logical partition with a virtual I/O device which replaces the donated physical I/O device, and which is configurable by the logical partition.
摘要翻译：专用访问被提供给不能由启动逻辑分区配置的物理输入/输出（I / O）设备。访问是通过以下方式建立的：通过逻辑分区启动分区附件的创建; 调用所述数据处理系统的虚拟机管理程序以从所述发起逻辑分区捐赠的资源来实例化所述分区附件，所述捐赠资源包括所述逻辑分区的捐赠虚拟地址空间和所述物理I / O设备; 通过管理程序创建分区附件，并将捐赠的虚拟地址空间分配给捐赠的物理I / O设备到创建的分区附件; 并且由管理程序与逻辑分区和所创建的分区附件进行接口，所述接口包括向所述逻辑分区提供替换所述捐赠的物理I / O设备的虚拟I / O设备，并且所述虚拟I / O设备可由所述逻辑分区配置。

7. 发明授权

US09317453B2 Client partition scheduling and prioritization of service partition work 有权
标题翻译：客户端分区调度和服务分区工作的优先级
公开(公告)号：US09317453B2
公开(公告)日：2016-04-19
申请号：US13349071
申请日：2012-01-12
申请人： William J. Armstrong , Orran Y. Krieger , Michal Ostrowski , Randal C. Swanberg
发明人： William J. Armstrong , Orran Y. Krieger , Michal Ostrowski , Randal C. Swanberg
IPC分类号： G06F9/455 , G06F12/14
CPC分类号： G06F12/1475 , G06F9/45558 , G06F12/1491 , G06F2009/45579 , G06F2212/1056
摘要： A method in a data processing system is provided for processing a service request of a client partition. The method includes: obtaining by a service partition of the data processing system the service request from the client partition, wherein both the client and service partitions execute above a hypervisor of the data processing system; and processing the service request by the service partition utilizing a processor quantum assigned to the client partition and donated by the client partition to the service partition. The client partition controls scheduling of the service partition by queuing the service request at the client partition until the client partition decides to proceed with execution of the service request by the service partition. In one implementation, the service partition is a partition adjunct of the data processing system, which utilizes donated virtual address space of the client partition.
摘要翻译：提供数据处理系统中的方法来处理客户端分区的服务请求。该方法包括：通过数据处理系统的服务分区获取来自客户端分区的服务请求，其中客户端和服务分区都在数据处理系统的管理程序之上执行; 以及使用分配给所述客户端分区并由所述客户端分区捐赠给所述服务分区的处理器量化由所述服务分区处理所述服务请求。客户机分区通过在客户端分区排队服务请求来控制服务分区的调度，直到客户端分区决定继续执行服务分区的服务请求。在一个实现中，服务分区是数据处理系统的分区附件，其利用客户端分区的捐赠的虚拟地址空间。

8. 发明授权

US08495632B2 Partition adjunct for data processing system 有权
标题翻译：分区辅助数据处理系统
公开(公告)号：US08495632B2
公开(公告)日：2013-07-23
申请号：US13441139
申请日：2012-04-06
申请人： William J. Armstrong , Orran Y. Krieger , Michal Ostrowski , Randal C. Swanberg
发明人： William J. Armstrong , Orran Y. Krieger , Michal Ostrowski , Randal C. Swanberg
IPC分类号： G06F9/455 , G06F9/46 , G06F12/00 , G06F13/00
CPC分类号： G06F12/1475 , G06F9/45558 , G06F12/1491 , G06F2009/45579 , G06F2212/1056
摘要： A partition adjunct is provided for a logical partition running above a hypervisor of a data processing system. The partition adjunct, which is a separate dispatchable partition from an instantiating logical partition, provides one or more services to the logical partition. A service request received from the logical partition is processed by the partition adjunct utilizing virtual address space donated to the partition adjunct from the logical partition. The partition adjunct and the logical partition share a common virtual address to real address page table, and context switching the current state machine from the logical partition to the partition adjunct occurs without invalidating or modifying state data of selected memory management and address translation hardware of the data processing system. In a hardware multithreaded system, the partition adjunct is dispatched on a single thread, while another thread continues to run in the logical partition initiating the service request.
摘要翻译：为在数据处理系统的管理程序之上运行的逻辑分区提供分区附件。分区附件是与实例化逻辑分区相分离的可分派分区，为逻辑分区提供一个或多个服务。从逻辑分区接收到的服务请求由分区附件利用从逻辑分区捐赠给分区附件的虚拟地址空间来处理。分区附件和逻辑分区将共同的虚拟地址共享到实际地址页表，并且将当前状态机从逻辑分区切换到分区附件，而不会使所选择的存储器管理和地址转换硬件的状态数据无效或修改数据处理系统。在硬件多线程系统中，分区附件在单个线程上调度，而另一个线程继续在启动服务请求的逻辑分区中运行。

9. 发明授权

US08219989B2 Partition adjunct with non-native device driver for facilitating access to a physical input/output device 有权
标题翻译：使用非本地设备驱动程序进行分区，以便于访问物理输入/输出设备
公开(公告)号：US08219989B2
公开(公告)日：2012-07-10
申请号：US12110982
申请日：2008-04-28
申请人： William J. Armstrong , Orran Y. Krieger , Michal Ostrowski , Randal C. Swanberg
发明人： William J. Armstrong , Orran Y. Krieger , Michal Ostrowski , Randal C. Swanberg
IPC分类号： G06F9/455 , G06F12/00 , G06F13/00 , G06F13/28
CPC分类号： G06F12/1475 , G06F9/45558 , G06F12/1491 , G06F2009/45579 , G06F2212/1056
摘要： Dedicated access is provided to a physical input/output (I/O) device which is non-configurable by an initiating logical partition. Access is established by: initiating, by the logical partition, creation of a partition adjunct; invoking a hypervisor of the data processing system to instantiate the partition adjunct with resources donated from the initiating logical partition, the donated resources including a donated virtual address space of the logical partition and the physical I/O device; creating, by the hypervisor, the partition adjunct and assigning the donated virtual address space and donated physical I/O device to the created partition adjunct; and interfacing, by the hypervisor, the logical partition and the created partition adjunct, the interfacing including providing the logical partition with a virtual I/O device which replaces the donated physical I/O device, and which is configurable by the logical partition.
摘要翻译：专用访问被提供给不能由启动逻辑分区配置的物理输入/输出（I / O）设备。访问是通过以下方式建立的：通过逻辑分区启动分区附件的创建; 调用所述数据处理系统的虚拟机管理程序以从所述发起逻辑分区捐赠的资源来实例化所述分区附件，所述捐赠资源包括所述逻辑分区的捐赠虚拟地址空间和所述物理I / O设备; 通过管理程序创建分区附件，并将捐赠的虚拟地址空间分配给捐赠的物理I / O设备到创建的分区附件; 并且由管理程序与逻辑分区和所创建的分区附件进行接口，所述接口包括向所述逻辑分区提供替换所述捐赠的物理I / O设备的虚拟I / O设备，并且所述虚拟I / O设备可由所述逻辑分区配置。

10. 发明申请

US20090055601A1 Efficient Sharing Of Memory Between Applications Running Under Different Operating Systems On A Shared Hardware System 失效
标题翻译：在共享硬件系统下，在不同操作系统下运行的应用程序之间高效共享内存
公开(公告)号：US20090055601A1
公开(公告)日：2009-02-26
申请号：US12255045
申请日：2008-10-21
申请人： Paul E. McKenney , Orran Y. Krieger , Michal Ostrowski
发明人： Paul E. McKenney , Orran Y. Krieger , Michal Ostrowski
IPC分类号： G06F12/00
CPC分类号： G06F9/52 , G06F12/1018 , G06F12/1036 , G06F12/109 , G06F2212/656
摘要： A system, method and computer program product for efficient sharing of memory between first and second applications running under first and second operating systems on a shared hardware system. The hardware system runs a hypervisor that supports concurrent execution of the first and second operating systems, and further includes a region of shared memory managed on behalf of the first and second applications. Techniques are used to avoid preemption when the first application is accessing the shared memory region. In this way, the second application will not be unduly delayed when attempting to access the shared memory region due to delays stemming from the first application's access of the shared memory region. This is especially advantageous when the second application and operating system are adapted for real-time processing. Additional benefits can be obtained by taking steps to minimize memory access faults.
摘要翻译：一种用于在共享硬件系统上在第一和第二操作系统下运行的第一和第二应用之间高效共享存储器的系统，方法和计算机程序产品。硬件系统运行支持并行执行第一和第二操作系统的管理程序，并且还包括代表第一和第二应用程序管理的共享存储器的区域。当第一个应用程序正在访问共享内存区域时，技术用于避免抢占。以这种方式，由于来自第一应用程序访问共享存储器区域的延迟，尝试访问共享存储器区域时，第二应用将不会被不适当地延迟。当第二应用和操作系统适于实时处理时，这是特别有利的。通过采取措施尽量减少内存访问故障可以获得额外的好处。

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