Virtual machine restarting method, virtual machine migration method and related equipment

Abstract

The invention provides a virtual machine restarting method, a virtual machine migration method and related equipment, and the method comprises the steps: receiving a restarting instruction of a virtual machine, wherein the restarting instruction is used for restarting a first virtual machine, the first virtual machine is distributed with a first memory space in a physical memory, and first encrypted data in the first memory space is encrypted data encrypted by a key corresponding to the first virtual machine; determining second encrypted data from a second memory space corresponding to the first virtual machine in the physical memory, wherein the second encrypted data at least comprises encrypted starting data, and the encrypted starting data is used for starting the first virtual machine; copying the second encrypted data in the second memory space to the first memory space; and restarting the first virtual machine based on the second encrypted data in the first memory space. Due to the fact that the encrypted starting data is copied to the first memory space instead of being encrypted after being written into the first memory space, restarting of the encrypted virtual machine can be achieved.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of processors, and in particular to a method for restarting a virtual machine, a migration method, and related devices. Background technique [0002] Virtualization technology can virtualize a physical host into multiple virtual machines to efficiently utilize the hardware resources of the physical host. Each virtualized virtual machine can be allocated virtual machine memory in physical memory, and the virtual machine memory allocated to each virtual machine is mainly used for task consumption and virtualization support. [0003] With the continuous development of hardware virtualization technology, virtual machines are no longer realized through pure software, but virtual machines are realized through a combination of virtual machine simulation software and hardware. However, virtual machines are realized through hardware virtualization technology. In this way, the encrypted virtual ...

AI Technical Summary

Problems solved by technology

[0003] With the continuous development of hardware virtualization technology, virtual machines are no longer realized through pure software, but virtual machines are realized through a combination of virtual machine simulation software and hardware. However, virtual machines are realized through hardware virtualization technology. In this way, the encrypted virtual machine cannot be restarted

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