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Architectural mode configuration in a computing system

A technology of computer systems and patterns, applied in computing, computers, digital computer components, etc., can solve the problem of expensive testing of virtual memory

Active Publication Date: 2016-11-16
IBM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, virtual memory testing is expensive

Method used

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  • Architectural mode configuration in a computing system
  • Architectural mode configuration in a computing system
  • Architectural mode configuration in a computing system

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Embodiment Construction

[0044] According to one aspect, a capability is provided, the capability restriction configured to support use of a configuration by a computing environment of multiple configurations such that one or more aspects of the restricted configuration are unavailable. As an example, a processor is configured in configuration architectural mode (CAM). In CAM, a computing environment (e.g., processors, logical partitions, objects) originally configured for multiple architectures (e.g., legacy and enhanced) is reconfigured such that at least one of the architectures is no longer supported. One or more aspects of one, such as legacy architectures. In such configurations, unsupported aspects of the architecture are not available.

[0045] As a specific example, in computing environments that support multiple architectures such as ESA / 390 and z / Architecture, a Configure z / Architecture Architecture Mode (CZAM) tool is provided that removes the ability to use aspects of ESA / 390 . In prac...

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Abstract

A determination is made that a configuration architectural mode facility is installed in a computing environment that is configured for a plurality of architectural modes and has a defined power-on sequence that is to power-on the computing environment in one architectural mode of the plurality of architectural modes. Based on determining that the configuration architectural mode facility is installed, the computing environment is reconfigured to restrict use of the one architectural mode. The reconfiguring includes selecting a different power-on sequence to power-on the computing environment in another architectural mode of the plurality of architectural modes, wherein the another architectural mode is different from the one architectural mode, and executing the different power-on sequence to power-on the computing environment in the another architectural mode in place of the one architectural mode restricting use of the one architectural mode.

Description

technical field [0001] One or more aspects relate generally to configurations of computing environments, and, in particular, to altering the configurations of such environments. Background technique [0002] A computing environment provides a range of capabilities and functions depending on the architectural configuration of the environment. Two architectures that have been offered by International Business Machines Corporation of Armonk, New York include ESA / 390 and z / Architecture. [0003] ESA / 390 is the legacy architecture of z / Architecture. However, ESA / 390 continued to be supported when z / Architecture was introduced. In order to support both architectures in one environment, certain procedures are followed. For example, in a power supply, boot the ESA / 390, and then switch to z / Architecture if needed. This allows legacy software to continue to execute without changes. Other such programs are provided to support two schema configurations in one environment. [0004]...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F9/44G06F9/30
CPCG06F9/4403G06F9/44505G06F15/76G06F9/30189G06F15/7867G06F9/30076G06F9/4405G06F9/44
Inventor M·K·克施温德C·盖尼
Owner IBM CORP