Status information control method and device

Abstract

The invention provides a status information control method and device. The method is applied to a host machine in a virtual platform. The host machine comprises a virtualization status global control register and multiple grouped register groups. Each grouped register group comprises at least one grouped register. The method includes the steps that a first virtual machine update status operating instruction is created by the host machine when processor status information of a first virtual machine is updated; the host machine reads an identifier of the first grouped register group, corresponding to the first virtual machine, saved in the virtualization status global control register; the host machine executes the first virtual machine update status operating instruction on the first grouped register group according to the identifier. By means of the method, when the host machine simulates the processor status information of the virtual machine, only traditional instructions are needed and transmitted into the grouped register groups in the virtualization status global control register, therefore, system expenses are reduced, and the virtualization efficiency is improved.

Description

technical field [0001] The invention relates to virtualization technology, in particular to a state information control method and device. Background technique [0002] In the virtualization platform, the host computer needs to simulate the processor state of the virtual machine during the process of executing the virtualization application. When the processor state of the virtual machine changes, the processor state of the simulated virtual machine on the host machine also Corresponding changes need to be made to ensure that the virtualized applications executed by the host machine can be executed correctly. [0003] In the prior art, the host saves the processor state information of the virtual machine to be simulated in the memory of the host, and when the processor state information of the virtual machine changes, the host executes a large number of memory access instructions to update accordingly. The processor state information of the virtual machine saved in the memo...

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a state information control method and device, which are used to solve the problem in the prior art that the virtualization execution system overhead is too large, resulting in low virtualization efficiency

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