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Operating system switching control device and computer system

An operating system and control device technology, which is applied in the direction of program control device, multi-program device, program startup/switching, etc., can solve the problems of OS that cannot be unlocked, unlocked, and cannot switch working states, etc., to prevent Effects of failure, prevention of failure or abnormal operation, and improvement of stability

Inactive Publication Date: 2008-07-23
NTT DOCOMO INC
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0017] That is, for the first problem, the following problem was raised: when using a unit that locks the switching of the operating state OS, the lock cannot be released due to a failure, and the operating state of the OS may not be switched without unlocking, so even if it occurs Faults also need to maintain the functionality of the OS that switches working states

Method used

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  • Operating system switching control device and computer system
  • Operating system switching control device and computer system
  • Operating system switching control device and computer system

Examples

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Embodiment Construction

[0062] (Computer system according to the first embodiment of the present invention)

[0063] Refer to Figure 1 to Figure 7 The configuration of the computer system 1 according to the first embodiment of the present invention will be described.

[0064] The computer system 1 according to the present embodiment installs a plurality of OS1 and OS2 exclusively in the active state, and switches the active OS (active OS) by the OS switching function 2 .

[0065] The OS switching function 2 performs switching between a plurality of physically different OSs or switching between a plurality of virtual OSs.

[0066] Here, in switching between physically different OSes, OS1 and OS2 are executed by different programs.

[0067] During switching between multiple OSes, the state of the hardware, OS, or application when the switching source OS is in operation is paused (saved), and the state of the hardware, OS, or application is restarted when the switching destination OS is in operation....

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PUM

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Abstract

The present invention provides an operating system switching control device and computer system which can switch OS in the active status safely and rapidly. In the computer system (1), a switch-source OS controller unit includes: a OS switch request receiver unit (11) configured to receive an OS switch request for requesting that the switch-destination OS in a suspend status becomes the OS in the active status; a switch event notifying unit (12) configured to notify event information to the switch-destination OS or an application on the switch-destination OS, the event information being included in the received OS switch request, and requesting the switch-destination OS or the application on the switch-destination OS to perform a process; and a switch controller unit (13) configured to call the OS switching function, by using the event information as an argument, so that the switch-destination OS becomes the OS in the active status.

Description

technical field [0001] The present invention relates to a plurality of operating system switching control devices, which are installed in a computer system having an operating system switching function for exclusively switching an operating system in a working state from a switching source operating system to a switching destination operating system. [0002] In addition, the present invention also relates to a computer system that installs a plurality of operating systems that are exclusively in an operating state, or a plurality of virtual operating systems provided by a single operating system having a plurality of setting modes, and utilizes operating system switching Function to exclusively switch the operating system in the working state from the switching source operating system to the switching destination operating system. Background technique [0003] Conventionally, a configuration is known in which a plurality of operating systems (hereinafter referred to as OS) ...

Claims

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Application Information

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IPC IPC(8): G06F9/48G06F9/445
Inventor 太田贤中山雄大江口悠利稻村雄
Owner NTT DOCOMO INC
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