Method for live migration of virtual machine, method for processing memory data of virtual machine, server and virtual machine system

一种虚拟机迁移、虚拟机的技术，应用在信息领域，能够解决数据无法迁移完整等问题，达到实现状态迁移的效果

Active Publication Date: 2021-11-19
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Embodiments of the present invention provide a method for virtual machine hot migration, a method for processing virtual machine memory data, a server, and a virtual machine system, so as to solve the problem in the prior art that data cannot be completely migrated during hot migration of a virtual machine

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  • Method for live migration of virtual machine, method for processing memory data of virtual machine, server and virtual machine system
  • Method for live migration of virtual machine, method for processing memory data of virtual machine, server and virtual machine system
  • Method for live migration of virtual machine, method for processing memory data of virtual machine, server and virtual machine system

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Embodiment Construction

[0167] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0168] In order to solve the problem in the prior art that the hot migration of a virtual machine cannot be realized in the SR-IOV technical scenario, the embodiment of the present invention discloses a method for hot migration of a virtual machine.

[0169] refer to figure 1 , figure 1 It is a schematic flowchart of a method for live migration of a virtual machine according to an embodiment of the present invention, and the method includes:

[0170]...

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Abstract

A method and server for live migration of a virtual machine, to solve the problem that the live migration of a virtual machine cannot be realized in an SR‑IOV technical scenario. In the virtual machine live migration method and server of the embodiment, by setting the write dirty flag, the virtual PCIE device of the virtual machine to be migrated performs at least one read and write operation on the received data, and the virtual machine of the virtual machine to be migrated The manager can identify data changes and migrate the changed data to the target virtual machine, which solves the problem that the data cannot be migrated due to the data passing through the virtual PCIE device during the live migration process of the virtual machine in the prior art, and the virtual machine manager cannot perceive the data. question.

Description

technical field [0001] The present invention relates to the field of information technology, in particular to a method for live migration of a virtual machine, a method for processing memory data of a virtual machine, a server and a virtual machine system. Background technique [0002] SR-IOV (Single-Root I / O Virtualization, single-root IO virtualization) is an IO virtualization technology that can be virtualized on a physical PCIE (Peripheral Component Interconnection Express English, fast peripheral component interconnection standard) device. Create multiple virtual PCIE devices. Virtual PCIE devices can only be configured and managed through the original physical PCIE device. Each virtual PCIE device can have independent interrupts and DMA (DirectMemory Access, direct memory access), so that the virtual machine can The physical PCIE device is directly accessed through the virtual PCIE device without the intervention of a VMM (Virtual Machine Monitor, virtual machine monit...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): G06F13/28G06F13/42G06F9/455
Inventor卢胜文
OwnerHUAWEI TECH CO LTD