Information processing device, information processing method, and information processing program

Abstract

The disclosed information processing device (100) detects a switch request by means of a detection unit (301) while in a first state wherein a first OS (#1) is executing a process that includes a second OS (#2) that is different from the first OS (#1). By means of a halting unit (303), the information processing device (100) halts the process that includes the second OS (#2) when a switch request is detected by the detection unit (301). After the process is halted, the information processing device (100) transfers the execution authorization for the process from the first OS (#1) to the second OS (#2) by means of a transfer unit (304). After the execution authorization has been transferred, by means of a switching unit (302), the information processing device (100) switches from the first state to a second state wherein the second OS (#2) executes a process including the first OS (#1).

Description

technical field [0001] The present invention relates to an information processing device, an information processing method, and an information processing program for switching OS. Background technique [0002] Conventionally, there is a technique for executing a plurality of OS (Operating System: Operating System) in a single processor system. This technology exists to implement it on one processor system when the service that the user wants to enjoy depends on the OS, and there are multiple services that the user wants to enjoy, and the OS for realizing each service is different. As a means of realizing this mechanism, there are VM (Virtual Machine: virtual machine), hybrid (hybrid) OS, and the like. [0003] The VM refers to software that virtualizes resources such as a CPU and a storage device, and executes on the virtualized resources. Software that virtualizes resources is also known as a hypervisor. By mounting a plurality of VMs on a single processor system, two or...

AI Technical Summary

Problems solved by technology

There is a problem that a system equipped with a hypervisor becomes a large-scale software structure

In addition, the hybrid OS can simplify the installation compared with the VM, but the co-OS is a process executed on the main OS, and the allocation cycle of the processor is under the control and management of the main OS

Therefore, when the main OS sets the priority of the co-OS as a whole to a low state, even if the co-OS executes a process with a higher priority, there is a problem that the processor allocates fewer cycles to the process.

[0010] In addition, in the techniques of Patent Documents 1 and 2, if the process of the co-OS is set to a high priority, the priority of the main OS is relatively lowered.

Therefore, when a process that has become a high-priority co-OS accesses the device, since the access to the device is performed through the main OS, the main OS whose priority has been lowered becomes a bottleneck, and there is a problem that processing is delayed.

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