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

A technology of virtual machine migration and memory data, which is applied in the information field and can solve problems such as inability to migrate data completely

Active Publication Date: 2018-03-09
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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 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.

[0168] 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.

[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] Ste...

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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 fact that the data passes 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 invention relates to the field of information technology, in particular to a virtual machine live migration method, a virtual machine memory data processing method, 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 monitor). Taking a network car...

Claims

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Application Information

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