DETERMINATION OF RUNNING STATUS OF LOGICAL PROCESSOR
    75.
    发明申请
    DETERMINATION OF RUNNING STATUS OF LOGICAL PROCESSOR 有权
    确定逻辑处理器的运行状态

    公开(公告)号:US20130014123A1

    公开(公告)日:2013-01-10

    申请号:US13619400

    申请日:2012-09-14

    IPC分类号: G06F9/46

    摘要: An embodiment provides for operating an information processing system. An aspect of the invention includes allocating an execution interval to a first logical processor of a plurality of logical processors of the information processing system. The execution interval is allocated for use by the first logical processor in executing instructions on a physical processor of the information processing system. The first logical processor determines that a resource required for execution by the first logical processor is locked by another one of the other logical processors. An instruction is issued by the first logical processor to determine whether a lock-holding logical processor is currently running. The lock-holding logical processor waits to release the lock if it is currently running. A command is issued by the first logical processor to a super-privileged process for relinquishing the allocated execution interval by the first logical processor if the locking holding processor is not running.

    摘要翻译: 实施例提供了操作信息处理系统。 本发明的一个方面包括将执行间隔分配给信息处理系统的多个逻辑处理器的第一逻辑处理器。 执行间隔被分配供第一逻辑处理器在信息处理系统的物理处理器上执行指令时使用。 第一逻辑处理器确定由第一逻辑处理器执行所需的资源被另一个其他逻辑处理器锁定。 由第一逻辑处理器发出指令以确定锁定保持逻辑处理器当前是否正在运行。 锁定逻辑处理器等待释放锁定,如果它当前正在运行。 如果锁定保持处理器不在运行,则由第一逻辑处理器发出命令到超级特权进程以放弃由第一逻辑处理器分配的执行间隔。

    Determination of running status of logical processor
    76.
    发明授权
    Determination of running status of logical processor 有权
    确定逻辑处理器的运行状态

    公开(公告)号:US08276151B2

    公开(公告)日:2012-09-25

    申请号:US11470487

    申请日:2006-09-06

    IPC分类号: G06F9/46 G06F13/00

    摘要: A method is provided for a first logical processor to determine a running status of a target logical processor of an information processing system. In such method, an instruction is issued by the first logical processor running on the information processing system for determining whether the target logical processor is running. In response to issuing the instruction, a state descriptor belonging to the target logical processor is queried to determine whether the target logical processor is currently running. A result is then returned to the first logical processor, the result indicating whether or not the target logical processor is currently running.

    摘要翻译: 提供了一种用于第一逻辑处理器来确定信息处理系统的目标逻辑处理器的运行状态的方法。 在这种方法中,在信息处理系统上运行的第一逻辑处理器发出用于确定目标逻辑处理器是否正在运行的指令。 响应于发出指令,查询属于目标逻辑处理器的状态描述符,以确定目标逻辑处理器当前是否正在运行。 然后将结果返回到第一逻辑处理器,结果指示目标逻辑处理器当前是否正在运行。

    PERFORMING A PERFORM TIMING FACILITY FUNCTION INSTRUCTION FOR SYNCHRONIZING TOD CLOCKS
    77.
    发明申请
    PERFORMING A PERFORM TIMING FACILITY FUNCTION INSTRUCTION FOR SYNCHRONIZING TOD CLOCKS 有权
    执行同步时钟功能的功能指令同步时钟

    公开(公告)号:US20120173917A1

    公开(公告)日:2012-07-05

    申请号:US13402554

    申请日:2012-02-22

    IPC分类号: G06F1/04 G04C11/00

    CPC分类号: G06F1/14

    摘要: A system, method and computer program product for steering a time-of-day (TOD) clock for a computer system having a physical clock providing a time base for executing operations that is stepped to a common oscillator. The method includes receiving, at a processing unit, a request to change a clock steering rate used to control a TOD-clock offset value for the processing unit, the TOD-clock offset defined as a function of a start time (s), a base offset (b), and a steering rate (r). The unit schedules a next episode start time with which to update the TOD-clock offset value. After updating TOD-clock offset value (d) at the scheduled time, TOD-clock offset value is added to a physical-clock value (Tr) value to obtain a logical TOD-clock value (Tb), where the logical TOD-clock value is adjustable without adjusting a stepping rate of the oscillator.

    摘要翻译: 一种用于转向具有物理时钟的计算机系统的时钟(TOD)时钟的系统,方法和计算机程序产品,该物理时钟提供用于执行步进到公共振荡器的操作的时基。 该方法包括在处理单元处接收用于改变用于控制处理单元的TOD时钟偏移值的时钟转向速率的请求,定义为开始时间的函数的TOD时钟偏移量, 基本偏移(b)和转向率(r)。 该单元安排下一个开始时间来更新TOD时钟偏移值。 在预定时间更新TOD时钟偏移值(d)后,将TOD时钟偏移值加到物理时钟值(Tr)值,以获得逻辑TOD时钟值(Tb),其中逻辑TOD时钟 值可调节,而不需要调整振荡器的步进速率。

    Millicode assist instructions for millicode store access exception checking
    78.
    发明授权
    Millicode assist instructions for millicode store access exception checking 有权
    Millicode帮助指令用于millicode存储访问异常检查

    公开(公告)号:US08176301B2

    公开(公告)日:2012-05-08

    申请号:US12031756

    申请日:2008-02-15

    摘要: Millicode store access checking instructions are provided via an operand access control register (OACR) including a test modifier indicator, which is communicatively coupled to an instruction unit subsystem, the instruction unit subsystem for fetching and decoding instructions. The instructions include a millicode instruction with an operand defining an address to check for a store access exception. In addition, an execution unit for executing the millicode instruction performs a method. The method includes receiving the millicode instruction from the instruction unit subsystem, testing for the store access exception at the address as if the test modifier is set absent an update to the OACR, and outputting a result of the testing for the store access exception.

    摘要翻译: 经由操作数访问控制寄存器(OACR)提供Millicode存储访问检查指令,该操作数访问控制寄存器(OACR)包括通信地耦合到指令单元子系统的指令单元子系统,用于获取和解码指令。 该指令包括一个具有操作数的millicode指令,其中定义了一个地址来检查存储访问异常。 另外,用于执行millicode指令的执行单元执行一种方法。 该方法包括从指令单元子系统接收millicode指令,测试地址处的存储访问异常,就好像将测试修饰符设置为不存在对OACR的更新,并输出用于存储访问异常的测试结果。