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1. 发明授权

US08185895B2 Method, apparatus and program storage device for providing an anchor pointer in an operating system context structure for improving the efficiency of accessing thread specific data 失效
标题翻译：用于在操作系统上下文结构中提供锚指针的方法，装置和程序存储装置，用于提高访问线程特定数据的效率
公开(公告)号：US08185895B2
公开(公告)日：2012-05-22
申请号：US11289903
申请日：2005-11-30
申请人： Wenjeng Ko , William G. Sherman , Cheng-Chung Song
发明人： Wenjeng Ko , William G. Sherman , Cheng-Chung Song
IPC分类号： G06F9/46 , G06F13/00 , G06F9/26 , H04L29/06
CPC分类号： G06F9/461 , G06F9/485
摘要： A method, apparatus and program storage device for providing an anchor pointer in an operating system context structure for improving the efficiency of accessing thread specific data is provided. A kernel thread context structure is maintained in memory. A thread accesses a pointer memory in the kernel thread context structure and sets a value within the pointer memory that addresses data specific to the thread.
摘要翻译：提供了一种用于在操作系统上下文结构中提供锚指针以提高线程特定数据访问效率的方法，装置和程序存储装置。内核线程上下文结构保留在内存中。线程访问内核线程上下文结构中的指针存储器，并在指针内存中设置一个寻址线程的特定数据的值。

2. 发明授权

US08010963B2 Method, apparatus and program storage device for providing light weight system calls to improve user mode performance 失效
标题翻译：用于提供轻量级系统呼叫以提高用户模式性能的方法，装置和程序存储装置
公开(公告)号：US08010963B2
公开(公告)日：2011-08-30
申请号：US11291613
申请日：2005-12-01
申请人： Daniel Heffley , Wenjeng Ko , Cheng-Chung Song
发明人： Daniel Heffley , Wenjeng Ko , Cheng-Chung Song
IPC分类号： G06F9/46 , G06F9/00
CPC分类号： G06F9/461
摘要： A method, apparatus and program storage device for providing light weight system calls to improve user mode performance is disclosed. A range of system call code for the light weight system calls is provided in a system call table. The light weight system calls skip the code for saving and restore processor context.
摘要翻译：公开了一种用于提供轻量级系统调用以提高用户模式性能的方法，装置和程序存储装置。在系统调用表中提供了一系列用于轻量级系统调用的系统调用代码。轻量级系统调用跳过用于保存和恢复处理器上下文的代码。

3. 发明申请

US20070162638A1 Generic DMA memory space mapping 失效
标题翻译：通用DMA内存空间映射
公开(公告)号：US20070162638A1
公开(公告)日：2007-07-12
申请号：US11290097
申请日：2005-11-30
申请人： Wenjeng Ko , Cheng-Chung Song
发明人： Wenjeng Ko , Cheng-Chung Song
IPC分类号： G06F13/28
CPC分类号： G06F12/1081
摘要： In a data processing system having multiple input/output adapters, a DMA memory block is assigned to each adapter. The DMA memory block has a data area and a generic common control area. All adapters have the same translation control entry for the control area. The control area includes a mapped page assigned to each adapter request and an unmapped buffer space interposed between the mapped pages. By mapping the generic DMA memory, memory space which is not required by an adapter is not mapped unnecessarily. Because the generic DMA memory space is part of each adapter's DMA memory space, adapters are unable to write to partitions to which they do not belong and the possibility of cross-partition memory writes is reduced. Moreover, runaway writes to dedicated DMA memory space may be caught as soon as they occur.
摘要翻译：在具有多个输入/输出适配器的数据处理系统中，DMA存储块被分配给每个适配器。 DMA存储器块具有数据区和通用公共控制区。所有适配器具有与控制区域相同的翻译控制条目。控制区域包括分配给每个适配器请求的映射页面和介于映射页之间的未映射缓冲区空间。通过映射通用DMA存储器，不会不必要地映射适配器不需要的内存空间。由于通用DMA存储器空间是每个适配器的DMA存储空间的一部分，因此适配器无法写入不属于它们的分区，并减少了跨分区内存写入的可能性。此外，一旦发生专用DMA存储空间的失控写入就可能被捕获。

4. 发明申请

US20070130569A1 Method, apparatus and program storage device for providing a no context switch attribute that allows a user mode thread to become a near interrupt disabled priority 失效
标题翻译：用于提供允许用户模式线程成为接近中断禁止优先级的无上下文切换属性的方法，装置和程序存储装置
公开(公告)号：US20070130569A1
公开(公告)日：2007-06-07
申请号：US11291600
申请日：2005-12-01
申请人： Daniel Heffley , Wenjeng Ko , Cheng-Chung Song
发明人： Daniel Heffley , Wenjeng Ko , Cheng-Chung Song
IPC分类号： G06F9/46
CPC分类号： G06F9/485 , G06F9/4812
摘要： A method, apparatus and program storage device for providing a no context switch attribute that allows a user mode thread to become a near interrupt disabled priority is disclosed. A thread includes a no context switch attribute. Control of a thread based on the no context switch attribute is much more efficient than the real-time priority because the no context switch attribute bypasses the overhead of scheduling. Moreover, the no context switch attribute may be used to detect whether a thread performs any undesirable operations that can cause the thread to become suspended while in a critical section. The no context switch attribute is configurable to indicate whether execution of the thread can be suspended.
摘要翻译：公开了一种用于提供允许用户模式线程成为接近中断禁止优先级的无上下文切换属性的方法，装置和程序存储装置。线程包括无上下文切换属性。基于无上下文切换属性的线程的控制比实时优先级高得多，因为无上下文切换属性绕过调度的开销。此外，无上下文切换属性可以用于检测线程是否执行可能导致线程在临界区间中暂停的任何不期望的操作。无上下文切换属性可配置为指示线程的执行是否可以暂停。

5. 发明申请

US20070168760A1 Saving state data in parallel in a multi-processor system 失效
标题翻译：在多处理器系统中并行保存状态数据
公开(公告)号：US20070168760A1
公开(公告)日：2007-07-19
申请号：US11288714
申请日：2005-11-29
申请人： Wenjeng Ko , Cheng-Chung Song
发明人： Wenjeng Ko , Cheng-Chung Song
IPC分类号： G06F11/00
CPC分类号： G06F11/0766 , G06F11/0715 , G06F11/0724
摘要： A method, system and program product save state data in a multi-processor system. A problem in the multi-processor system is detected and a statesave thread is spawned for each processor in the system. Each statesave thread directs a processor, in parallel with the other processors to attempt to identify a component in the system having a status of “incomplete”, indicating that state data of the component remains to be offloaded. When a component having a status of “incomplete” is identified, the processor executes statesave code to offload state data from the identified component. Upon completion of the state data offload from the identified component, the processor changes the status of the component to “complete”. The foregoing processes are repeated until no components are identified in the system having a status of “incomplete”.
摘要翻译：方法，系统和程序产品在多处理器系统中保存状态数据。检测到多处理器系统中的问题，并为系统中的每个处理器产生一个状态线程。每个状态线程指示处理器与其他处理器并行，以尝试识别系统中具有“不完整”状态的组件，指示组件的状态数据保持卸载。当识别出具有“不完整”状态的组件时，处理器执行状态代码以从识别的组件卸载状态数据。在从识别的组件完成状态数据卸载后，处理器将组件的状态改变为“完成”。重复上述处理，直到在具有“不完全”状态的系统中没有识别到组件。

6. 发明授权

US07500141B2 Saving state data in parallel in a multi-processor system 失效
标题翻译：在多处理器系统中并行保存状态数据
公开(公告)号：US07500141B2
公开(公告)日：2009-03-03
申请号：US11288714
申请日：2005-11-29
申请人： Wenjeng Ko , Cheng-Chung Song
发明人： Wenjeng Ko , Cheng-Chung Song
IPC分类号： G06F11/00
CPC分类号： G06F11/0766 , G06F11/0715 , G06F11/0724
摘要： A method, system and program product save state data in a multi-processor system. A problem in the multi-processor system is detected and a statesave thread is spawned for each processor in the system. Each statesave thread directs a processor, in parallel with the other processors to attempt to identify a component in the system having a status of “incomplete”, indicating that state data of the component remains to be offloaded. When a component having a status of “incomplete” is identified, the processor executes statesave code to offload state data from the identified component. Upon completion of the state data offload from the identified component, the processor changes the status of the component to “complete”. The foregoing processes are repeated until no components are identified in the system having a status of “incomplete”.
摘要翻译：方法，系统和程序产品在多处理器系统中保存状态数据。检测到多处理器系统中的问题，并为系统中的每个处理器产生一个状态线程。每个状态线程指示处理器与其他处理器并行，以尝试识别系统中具有“不完整”状态的组件，指示组件的状态数据仍然被卸载。当识别出具有“不完整”状态的组件时，处理器执行状态代码以从识别的组件卸载状态数据。在从识别的组件完成状态数据卸载后，处理器将组件的状态改变为“完成”。重复上述处理，直到在具有“不完全”状态的系统中没有识别到组件。

7. 发明申请

US20070124729A1 Method, apparatus and program storage device for providing an anchor pointer in an operating system context structure for improving the efficiency of accessing thread specific data 失效
标题翻译：用于在操作系统上下文结构中提供锚指针的方法，装置和程序存储装置，用于提高访问线程特定数据的效率
公开(公告)号：US20070124729A1
公开(公告)日：2007-05-31
申请号：US11289903
申请日：2005-11-30
申请人： Wenjeng Ko , William Sherman , Cheng-Chung Song
发明人： Wenjeng Ko , William Sherman , Cheng-Chung Song
IPC分类号： G06F9/46
CPC分类号： G06F9/461 , G06F9/485
摘要： A method, apparatus and program storage device for providing an anchor pointer in an operating system context structure for improving the efficiency of accessing thread specific data is provided. A kernel thread context structure is maintained in memory. A thread accesses a pointer memory in the kernel specific context structure and sets a value within the pointer memory that addresses data specific to the thread.
摘要翻译：提供了一种用于在操作系统上下文结构中提供锚指针以提高线程特定数据访问效率的方法，装置和程序存储装置。内核线程上下文结构保留在内存中。线程访问内核特定上下文结构中的指针存储器，并在指针存储器内设置一个寻址线程特定数据的值。

8. 发明授权

US07971205B2 Handling of user mode thread using no context switch attribute to designate near interrupt disabled priority status 失效
标题翻译：使用无上下文切换属性处理用户模式线程来指定近中断禁用优先级状态
公开(公告)号：US07971205B2
公开(公告)日：2011-06-28
申请号：US11291600
申请日：2005-12-01
申请人： Daniel Heffley , Wenjeng Ko , Cheng-Chung Song
发明人： Daniel Heffley , Wenjeng Ko , Cheng-Chung Song
IPC分类号： G06F9/46 , G06F13/24
CPC分类号： G06F9/485 , G06F9/4812
摘要： A method, apparatus and program storage device for providing a no context switch attribute that allows a user mode thread to become a near interrupt disabled priority is disclosed. A thread includes a no context switch attribute. Control of a thread based on the no context switch attribute is much more efficient than the real-time priority because the no context switch attribute bypasses the overhead of scheduling. Moreover, the no context switch attribute may be used to detect whether a thread performs any undesirable operations that can cause the thread to become suspended while in a critical section. The no context switch attribute is configurable to indicate whether execution of the thread can be suspended.
摘要翻译：公开了一种用于提供允许用户模式线程成为接近中断禁止优先级的无上下文切换属性的方法，装置和程序存储装置。线程包括无上下文切换属性。基于无上下文切换属性的线程的控制比实时优先级高得多，因为无上下文切换属性绕过调度的开销。此外，无上下文切换属性可以用于检测线程是否执行可能导致线程在临界区间中暂停的任何不期望的操作。无上下文切换属性可配置为指示线程的执行是否可以暂停。

9. 发明申请

US20070143436A1 Method, apparatus and program storage device for providing light weight system calls to improve user mode performance 失效
标题翻译：用于提供轻量级系统呼叫以提高用户模式性能的方法，装置和程序存储装置
公开(公告)号：US20070143436A1
公开(公告)日：2007-06-21
申请号：US11291613
申请日：2005-12-01
申请人： Daniel Heffley , Wenjeng Ko , Cheng-Chung Song
发明人： Daniel Heffley , Wenjeng Ko , Cheng-Chung Song
IPC分类号： G06F15/167
CPC分类号： G06F9/461
摘要： A method, apparatus and program storage device for providing light weight system calls to improve user mode performance is disclosed. A range of system call code for the light weight system calls is provided in a system call table. The light weight system calls skip the code for saving and restore processor context.
摘要翻译：公开了一种用于提供轻量级系统调用以提高用户模式性能的方法，装置和程序存储装置。在系统调用表中提供了一系列用于轻量级系统调用的系统调用代码。轻量级系统调用跳过用于保存和恢复处理器上下文的代码。

10. 发明授权

US09009386B2 Systems and methods for managing read-only memory 有权
标题翻译：用于管理只读存储器的系统和方法
公开(公告)号：US09009386B2
公开(公告)日：2015-04-14
申请号：US12966055
申请日：2010-12-13
申请人： Brian D. Hatfield , Wenjeng Ko , Lei Liu
发明人： Brian D. Hatfield , Wenjeng Ko , Lei Liu
IPC分类号： G06F12/00 , G06F12/14 , G06F12/10
CPC分类号： G06F12/1009 , G06F12/0638 , G06F12/10 , G06F12/145 , G06F2212/1016 , G06F2212/1052 , G06F2212/202 , G06F2212/65
摘要： A system includes a memory device including a real memory and a tracking mechanism configured to track relationships between multiple virtual memory addresses and real memory. The system further includes a processor configured to perform the below method and/or execute the below computer program product. One method includes mapping a first virtual memory address to a real memory in a memory device and mapping a second virtual memory address to the real memory. Here, the first virtual memory address is authorized to modify data in the real memory and the second virtual memory address is not authorized to modify the data in the real memory. One computer storage medium includes a computer program product for performing the above method.
摘要翻译：一种系统包括存储器装置，其包括实际存储器和跟踪机构，其被配置为跟踪多个虚拟存储器地址与真实存储器之间的关系。该系统还包括配置成执行以下方法的处理器和/或执行以下计算机程序产品。一种方法包括将第一虚拟存储器地址映射到存储器设备中的实际存储器，并将第二虚拟存储器地址映射到真实存储器。这里，第一虚拟存储器地址被授权修改实际存储器中的数据，并且第二虚拟存储器地址不被授权修改真实存储器中的数据。一个计算机存储介质包括用于执行上述方法的计算机程序产品。

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