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1. 发明授权

US4843541A Logical resource partitioning of a data processing system 失效
标题翻译：数据处理系统的逻辑资源划分
公开(公告)号：US4843541A
公开(公告)日：1989-06-27
申请号：US79314
申请日：1987-07-29
申请人： George H. Bean , Terry L. Borden , Mark S. Farrell , Peter H. Gum , Roger E. Hough , Francis E. Johnson , Donald W. McCauley , Mark E. Rakhmilevich , John C. Rathjen , Casper A. Scalzi , John F. Scanlon , Leslie W. Wyman
发明人： George H. Bean , Terry L. Borden , Mark S. Farrell , Peter H. Gum , Roger E. Hough , Francis E. Johnson , Donald W. McCauley , Mark E. Rakhmilevich , John C. Rathjen , Casper A. Scalzi , John F. Scanlon , Leslie W. Wyman
IPC分类号： G06F9/46 , G06F9/48 , G06F9/50 , G06F12/10
CPC分类号： G06F9/4843 , G06F9/5077
摘要： The embodiment discloses a method and means for partitioning the resources in a data processing system into a plurality of logical partitions. Host control code may be embodied in programming, microcode, or by special hardware to enable highly efficient operation of a plurality of preferred guest programming systems in the different partitions of the system. The main storage, expanded storage, the channel, and subchannel resources of a system are assigned to the different logical partitions in the system to enable a plurality of preferred guest programming systems to run simultaneously in the different partitions. This invention automatically relocates the absolute addresses of the I/O channel and subchannel resources in the system to their assigned partitions. Also the absolute and virtual addresses of the different guest programming systems are relocated into, as well as page addresses for any expanded storage, their assigned partitions. The guest programming systems generally will be different operating systems. The logical CPU(s) of the guests are dispatched on one or plural real CPUs in the system using the S/370XA SIE (start interpretive execution) instruction. Special operations are provided, including the CPU alerting of other guests in different partitions using I/O interruption signalling. Interception is provided to handle special circumstances.

2. 发明授权

US4494189A Method and means for switching system control of CPUs 失效
标题翻译：用于切换CPU系统控制的方法和装置
公开(公告)号：US4494189A
公开(公告)日：1985-01-15
申请号：US371754
申请日：1982-04-26
申请人： George H. Bean , Peter H. Gum
发明人： George H. Bean , Peter H. Gum
IPC分类号： G06F9/46 , G06F9/455 , G06F9/48
CPC分类号： G06F9/4843 , G06F9/45533
摘要： The embodiment obtains rapid switching between system control programs (SCPs) by switching an address in a prefix register in a CPU of a MP or UP data processing system from a guest SCP's PSA (program save area) to a host SCP's PSA by fetching the host prefix value from a predetermined control block in main storage. The prefix register loading changes the control of the CPU from a preferred guest SCP to a host SCP. This SCP switching is done by hardware and/or microcode means in the CPU. It further detects preset states in the CPU that enable a rapid determination of which SCP is to handle a sensed event, permitting the guest SCP to immediately handle events predetermined to belong to the guest. This manner of CPU control obtains for a preferred guest SCP (such as MVS/370) operating under a host SCP (such as VM/370) nearly the efficiency of standalone execution on the CPU by the preferred guest SCP.
摘要翻译：该实施例通过将MP或UP数据处理系统的CPU中的前缀寄存器中的地址从访客SCP的PSA（节目保存区域）切换到主机SCP的PSA，从而获得系统控制程序（SCP）之间的快速切换来自主存储器中的预定控制块的前缀值。前缀寄存器加载将CPU的控制从优选的客户SCP更改为主机SCP。该SCP切换由CPU中的硬件和/或微代码装置完成。它进一步检测CPU中的预设状态，使得能够快速确定哪个SCP处理感测到的事件，从而允许客人SCP立即处理预定属于客人的事件。这种CPU控制的方式获得在主机SCP（例如VM / 370）下操作的优选客户SCP（例如MVS / 370）几乎是优选客户SCP在CPU上独立执行的效率。

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