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公开(公告)号：AU2015238517B2
公开(公告)日：2018-02-22
申请号：AU2015238517
申请日：2015-03-20
Applicant: IBM
Inventor： HELLER LISA CRANTON , BUSABA FADI YUSUF , FARRELL MARK
Abstract: According to one aspect, a computer system includes a configuration with a machine enabled to operate in a single thread (ST) mode and a multithreading (MT) mode. In addition, the machine includes physical threads. The machine is configured to perform a method that includes issuing a start-virtual-execution (start- VE) instruction to dispatch a guest entity having multiple logical threads on the core. The guest entity includes all or a part of a guest virtual machine (VM), and issuing is performed by a host running on one of the physical threads on the core in the ST mode. The executing of the start- VE instruction by the machine includes mapping each of the logical threads to a corresponding one of the physical threads, initializing each of the mapped physical threads with a state of the corresponding logical thread, and starting execution of the guest entity on the core in MT mode.
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公开(公告)号：DE112015001502T5
公开(公告)日：2017-04-27
申请号：DE112015001502
申请日：2015-03-06
Applicant: IBM
Inventor： HELLER LISA CRANTON , BUSABA FADI YUSUF , FARRELL MARK
Abstract: Gemäß einem Aspekt enthält ein Computersystem eine Konfiguration mit einer Maschine, die fähig ist, in einem Einzel-Thread-(ST)Modus und einem Multithread-(MT)Modus zu arbeiten. Außerdem enthält die Maschine physische Threads. Die Maschine ist so konfiguriert, dass sie ein Verfahren ausführt, das die Ausführung einer Gastentität auf dem Kern im MT-Modus enthält. Die Gastentität enthält die gesamte oder einen Teil einer Gast-VM und eine Mehrzahl von logischen Threads, die auf den physischen Threads ausgeführt werden. Ein Ausstiegsereignis wird an der Maschine erfasst. Auf Grundlage einer Erfassung des Ausstiegsereignisses wartet die Maschine, bis alle logischen Threads, die aktuell auf den physischen Threads ausgeführt werden, einen Synchronisierungspunkt erreicht haben. Ein Zustand, der Ausstiegsgrundinformationen enthält, wird für jeden der logischen Threads gespeichert, und die Ausführung eines Hosts wird auf einem der physischen Threads im ST-Modus initiiert.
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公开(公告)号：SG11201606094TA
公开(公告)日：2016-08-30
申请号：SG11201606094T
申请日：2015-03-16
Applicant: IBM
Inventor： GREINER DAN , FARRELL MARK , OSISEK DAMIAN LEO , SCHMIDT DONALD WILLIAM , BUSABA FADI YUSUF , KUBALA JEFFREY PAUL , BRADBURY JONATHAN DAVID , HELLER LISA CRANTON , SLEGEL TIMOTHY
IPC: G06F9/46
Abstract: Embodiments relate to thread context restoration. One aspect is a multithreading computer system including a configuration with a core configurable between a single thread (ST) mode and a multithreading (MT) mode. The ST mode addresses a primary thread and the MT mode addresses the primary thread and one or more secondary threads on shared resources of the core. A multithreading facility is configured to control utilization of the configuration to perform a method including disabling one or more secondary threads based on switching from MT mode to ST mode. A thread context of secondary threads is made unavailable to programs. Based on a last-set program-specified maximum thread-id indicating MT, the thread context is obtained by a) executing a set MT instruction to resume the MT mode, and b) based on being in the resumed MT mode, accessing the thread context.
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公开(公告)号：SG11201606091UA
公开(公告)日：2016-08-30
申请号：SG11201606091U
申请日：2015-03-19
Applicant: IBM
Inventor： GREINER DAN , FARRELL MARK , OSISEK DAMIAN LEO , SCHMIDT DONALD WILLIAM , BUSABA FADI YUSUF , KUBALA JEFFREY PAUL , BRADBURY JONATHAN DAVID , HELLER LISA CRANTON , SLEGEL TIMOTHY , JACOBI CHRISTIAN
Abstract: Embodiments relate to dynamic enablement of multithreading. According to an aspect, a computer-implemented method for dynamic enablement of multithreading in a configuration is provided. The configuration includes a core configurable between a single thread (ST) mode and a multithreading (MT) mode, where the ST mode addresses a primary thread and the MT mode addresses the primary thread and one or more secondary threads on shared resources of the core. The method includes executing in the primary thread in the ST mode, an MT mode setting instruction. A number of threads requested is obtained from a location specified by the MT mode setting instruction. Based on determining that the number of threads requested indicates multiple threads, the MT mode is enabled to execute the multiple threads including the primary thread and the one or more secondary threads.
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公开(公告)号：AU2015238665A1
公开(公告)日：2016-08-04
申请号：AU2015238665
申请日：2015-03-16
Applicant: IBM
Inventor： GREINER DAN , FARRELL MARK , OSISEK DAMIAN LEO , SCHMIDT DONALD WILLIAM , BUSABA FADI YUSUF , KUBALA JEFFREY PAUL , BRADBURY JONATHAN DAVID , HELLER LISA CRANTON , SLEGEL TIMOTHY , GAINEY JR CHARLES
Abstract: A computer system includes a configuration with a core configurable between a single thread (ST) mode and a multithreading (MT) mode. The ST mode addresses a primary thread and the MT mode addresses the primary thread and one or more secondary threads on shared resources of the core. A multithreading facility is configured to control utilization of the configuration to perform a method that includes accessing the primary thread in the ST mode using a core address value and switching from the ST mode to the MT mode. The primary thread or one of the one or more secondary threads is accessed in the MT mode using an expanded address value, where the expanded address value includes the core address value concatenated with a thread address value.
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Patent Agency Ranking
公开(公告)号：AU2015238662A1
公开(公告)日：2016-08-04
申请号：AU2015238662
申请日：2015-03-16
Applicant: IBM
Inventor： HELLER LISA CRANTON , BRADBURY JONATHAN DAVID , KUBALA JEFFREY PAUL , FARRELL MARK , OSISEK DAMIAN LEO , GREINER DAN , SLEGEL TIMOTHY , BUSABA FADI YUSUF , SCHMIDT DONALD WILLIAM , GAINY JR CHARLES
Abstract: A computer system includes a virtual machine (VM) configuration with one or more cores. Each core is enabled to operate in a single thread (ST) mode or a multithreading (MT) mode. The ST mode consists of a single thread and the MT mode consists of a plurality of threads on shared resources of a respective core. The computer system includes a core-oriented system control area (COSCA) having a common area representing all of the cores of the VM configuration and separate core description areas for each of the cores in the VM configuration. Each core description area indicates a location of one or more thread description areas each representing a thread within the respective core, and each thread description area indicates a location of a state description of the respective thread.
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公开(公告)号：MX383432B
公开(公告)日：2025-03-14
申请号：MX2016012528
申请日：2016-09-26
Applicant: IBM
Inventor： BUSABA FADI YUSUF , HELLER LISA CRANTON , FARRELL MARK
Abstract: De acuerdo con un aspecto, un sistema de computadora incluye una configuración con una máquina habilitada para operar en un modo de subprocesamiento individual (ST) y un modo de subprocesamiento múltiple (MT). Además, la máquina incluye subprocesos físicos. La máquina se configura para llevar a cabo un método que incluye emitir una instrucción de inicio de ejecución virtual (inicio de VE) para distribuir una entidad invitada que tiene múltiples subprocesos lógicos en el núcleo. La entidad invitada incluye toda o una parte de una máquina virtual (VM) invitada, y la emisión se lleva a cabo por un anfitrión que se ejecuta en uno de los subprocesos físicos en el núcleo en el modo ST. La ejecución de la instrucción de inicio de VE por la máquina incluye mapear cada uno de los subprocesos lógicos a uno correspondiente de los subprocesos físicos, inicializar cada uno de los subprocesos físicos mapeados con un estado del subproceso lógico correspondiente, e iniciar la ejecución de la entidad invitada en el núcleo en el modo MT.
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公开(公告)号：AU2020238889B2
公开(公告)日：2022-12-01
申请号：AU2020238889
申请日：2020-03-02
Applicant: IBM
Inventor： BRADBURY JONATHAN , HELLER LISA CRANTON , BACHER UTZ , BUSABA FADI
Abstract: An computer-implemented method according to examples includes receiving, by a secure interface control of a computing system, a request by a requestor to access a page in a memory of the computing system. The method further includes, responsive to determining that the requestor is a non-secure requestor and responsive to a secure- storage bit being set, prohibiting access to the page without performing an authorization check. The method further includes, responsive to determining that the requestor is a secure requestor, performing the authorization check.
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公开(公告)号：AU2020238889A1
公开(公告)日：2021-06-17
申请号：AU2020238889
申请日：2020-03-02
Applicant: IBM
Inventor： BRADBURY JONATHAN , HELLER LISA CRANTON , BACHER UTZ , BUSABA FADI
Abstract: An computer-implemented method according to examples includes receiving, by a secure interface control of a computing system, a request by a requestor to access a page in a memory of the computing system. The method further includes, responsive to determining that the requestor is a non-secure requestor and responsive to a secure- storage bit being set, prohibiting access to the page without performing an authorization check. The method further includes, responsive to determining that the requestor is a secure requestor, performing the authorization check.
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公开(公告)号：ZA201604938B
公开(公告)日：2019-02-27
申请号：ZA201604938
申请日：2016-07-15
Applicant: IBM
Inventor： GREINER DAN , FARRELL MARK , OSISEK DAMIAN LEO , SCHMIDT DONALD WILLIAM , BUSABA FADI YUSUF , KUBALA JEFFREY PAUL , BRADBURY JONATHAN DAVID , HELLER LISA CRANTON , SLEGEL TIMOTHY , GAINEY JR CHARLES (DECEASED) , JACOBI CHRISTIAN
Abstract: Embodiments relate to dynamic enablement of multithreading. According to an aspect, a computer-implemented method for dynamic enablement of multithreading in a configuration is provided. The configuration includes a core configurable between a single thread (ST) mode and a multithreading (MT) mode, where the ST mode addresses a primary thread and the MT mode addresses the primary thread and one or more secondary threads on shared resources of the core. The method includes executing in the primary thread in the ST mode, an MT mode setting instruction. A number of threads requested is obtained from a location specified by the MT mode setting instruction. Based on determining that the number of threads requested indicates multiple threads, the MT mode is enabled to execute the multiple threads including the primary thread and the one or more secondary threads.
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