Method for hot transfer of virtual machine and server

A virtual machine and server technology, applied in the information field, can solve problems such as data inability to migrate

Active Publication Date: 2014-06-25
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 and device for live migration of virtual machines to solve the problem in the prior art that data cannot be migrated during live migration of virtual machines

Method used

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  • Method for hot transfer of virtual machine and server
  • Method for hot transfer of virtual machine and server
  • Method for hot transfer of virtual machine and server

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Embodiment Construction

[0045] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the 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 making creative efforts shall fall within the protection scope of the present invention.

[0046] In order to solve the problem in the prior art that live migration of a virtual machine cannot be implemented in an SR-IOV technology scenario, an embodiment of the present invention discloses a method for live migration of a virtual machine.

[0047] 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:

[0048] Step ...

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Abstract

The embodiment of the invention provides a method for hot transfer of a virtual machine and a server in order to solve the problem that hot transfer of a virtual machine under SR-IOV technical scene is impossible. A virtual PCIE device of the virtual machine to be transferred at least one reads and writes received data once, and a virtual manager of the virtual machine to be transferred identifies the change of the data and transfers the changed data to the virtual machine, thereby solving the problem that data transfer fails to the virtual machine manager unable to sense the data while the data passing the PCIE device during hot transfer of the virtual machine in the prior art.

Description

technical field [0001] The invention relates to the field of information technology, in particular to a method and server for live migration of a virtual machine. 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 (Direct Memory Access, direct memory access), so that the virtual machine The physical PCIE device can be directly accessed through the virtual PCIE device without the intervention of a VMM (Virtual Machine Monitor, virtual machine monitor). Taking a network card that supports SR-IOV as an example, each virtual PCIE device corr...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): G06F9/455G06F9/48
CPCG06F2009/45579G06F9/5077G06F9/45558G06F9/4856G06F13/28G06F13/4221G06F2009/4557G06F9/5016
Inventor卢胜文
OwnerHUAWEI TECH CO LTD