Directed interrupt for multilevel virtualization

    公开(公告)号:AU2020222167B2

    公开(公告)日:2022-09-22

    申请号:AU2020222167

    申请日:2020-01-10

    Applicant: IBM

    Abstract: The invention relates to a method for providing an interrupt signal to a first guest operating system. A bus attachment device receives an interrupt signal from a bus connected module with an interrupt target ID identifying a processor assigned for use by the guest operating system as a target processor for handling the interrupt signal. The bus attachment device checks whether the target processor is scheduled for usage by the guest operating system. If the target processor is not scheduled for usage, the bus attachment device forwards the interrupt signal using broadcasting and updates a forwarding vector entry stored in a memory section assigned to a second guest operating system hosting the first guest operating system. The update is used for indicating to the first operating system that there is a first interrupt signal addressed to the interrupt target ID to be handled.

    HANDHABUNG EINER EINGABE-/AUSGABE-SPEICHERANWEISUNG

    公开(公告)号:DE112020000146T5

    公开(公告)日:2021-09-09

    申请号:DE112020000146

    申请日:2020-01-16

    Applicant: IBM

    Abstract: Ein Datenverarbeitungssystem (210) und ein Verfahren zur Handhabung einer Eingabe-/ Ausgabe-Speicheranweisung (30), das ein Systemnest (18) aufweist, welches durch einen Eingabe-/Ausgabebuscontroller (20) mit mindestens einem Eingabe-/Ausgabebus (22) verbunden ist. Eine Datenverarbeitungseinheit (216) ist über einen Aggregationspuffer (16) mit dem Systemnest (18) verbunden. Ein Systemnest (18) ist so konfiguriert, dass es Daten aus/in mindestens einer externen Einheit (214) asynchron lädt und/oder speichert. Die Datenverarbeitungseinheit (216) ist so konfiguriert, dass sie die Eingabe-/Ausgabe-Speicheranweisung (30) abschließt, bevor eine Ausführung der Eingabe-/Ausgabe-Speicheranweisung (30) in dem Systemnest (18) abgeschlossen ist. Eine asynchrone Kern-Nest-Schnittstelle (14) weist ein Eingabe-/Ausgabe-Statusarray (44) mit mehreren Eingabe-/ Ausgabe-Statuspuffern (24) auf. Eine System-Firmware (10) weist einen Wiederholungspuffer (52) auf, und der Kern (12) weist eine Analyse- und Wiederholungslogik (54) auf.

    Handling an input/output store instruction

    公开(公告)号:AU2020214661A1

    公开(公告)日:2021-06-10

    申请号:AU2020214661

    申请日:2020-01-14

    Applicant: IBM

    Abstract: A data processing system (210) and a method for handling an input/output store instruction (30), comprising a system nest (18) communicatively coupled to at least one input/output bus (22) by an input/output bus controller (20). The data processing system (210) further comprises at least a data processing unit (216) comprising a core (12), a system firmware (10) and an asynchronous core-nest interface (14). The data processing unit (216) is communicatively coupled to the system nest (18) via an aggregation buffer (16). The system nest (18) is configured to asynchronously load from and/or store data to an external device (214) which is communicatively coupled to the input/output bus (22). The data processing unit (216) is configured to complete the input/output store instruction (30) before an execution of the input/output store instruction (30) in the system nest (18) is completed.

    HANDLING AN INPUT/OUTPUT STORE INSTRUCTION

    公开(公告)号:SG11202104428PA

    公开(公告)日:2021-05-28

    申请号:SG11202104428P

    申请日:2020-01-14

    Applicant: IBM

    Abstract: An input/output store instruction is handled. A data processing system includes a system nest coupled to at least one input/output bus by an input/output bus controller. The data processing system further includes at least a data processing unit including a core, system firmware and an asynchronous core-nest interface. The data processing unit is coupled to the system nest via an aggregation buffer. The system nest is configured to asynchronously load from and/or store data to at least one external device which is coupled to the at least one input/output bus. The data processing unit is configured to complete the input/output store instruction before an execution of the input/output store instruction in the system nest is completed. The asynchronous core-nest interface includes an input/output status array with multiple input/output status buffers.

    HANDLING AN INPUT/OUTPUT STORE INSTRUCTION

    公开(公告)号:CA3127840A1

    公开(公告)日:2020-08-06

    申请号:CA3127840

    申请日:2020-01-14

    Applicant: IBM

    Abstract: A data processing system (210) and a method for handling an input/output store instruction (30), comprising a system nest (18) communicatively coupled to at least one input/output bus (22) by an input/output bus controller (20). The data processing system (210) further comprises at least a data processing unit (216) comprising a core (12), a system firmware (10) and an asynchronous core-nest interface (14). The data processing unit (216) is communicatively coupled to the system nest (18) via an aggregation buffer (16). The system nest (18) is configured to asynchronously load from and/or store data to at least one external device (214) which is communicatively coupled to the input/output bus (22). The data processing unit (216) is configured to complete the input/output store instruction (30) before an execution of the input/output store instruction (30) in the system nest (18) is completed. The asynchronous core-nest interface (14) comprises an input/output status array (44) with multiple input/output status buffers (24).

    29.
    发明专利
    未知

    公开(公告)号:AT468562T

    公开(公告)日:2010-06-15

    申请号:AT01128821

    申请日:2001-12-04

    Applicant: IBM

    Abstract: A method and apparatus relates to hardware-to-hardware data transmission in computer systems, and in particular, it relates to method and system for operating I/O adapters attaching either one or more computing devices to an I/O periphery, to a network, or to other computing devices. It is proposed to operate a memory local to the network coupling adapter as a cache memory relative to a system memory associated with the one or more computing devices for storing transmission control information.

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