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Virtual machine migration method and device

A virtual machine migration and virtual machine technology, applied in the field of cloud computing, to achieve high forwarding performance and facilitate subsequent operation and maintenance

Active Publication Date: 2021-04-06
NEW H3C CLOUD TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to overcome the above-mentioned deficiencies in the prior art, the purpose of the present disclosure is to provide a virtual machine migration method and device to solve or improve the above-mentioned problems

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  • Virtual machine migration method and device

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Embodiment Construction

[0046] The following will clearly and completely describe the technical solutions in the embodiments of the present disclosure with reference to the accompanying drawings in the embodiments of the present disclosure. Apparently, the described embodiments are part of the embodiments of the present disclosure, not all of them. The components of the disclosed embodiments generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

[0047] Accordingly, the following detailed description of the embodiments of the present disclosure provided in the accompanying drawings is not intended to limit the scope of the claimed disclosure, but merely represents selected embodiments of the present disclosure. Based on the embodiments in the present disclosure, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present disclosure.

[0048] It...

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Abstract

The present disclosure provides a virtual machine migration method and device. By configuring a combined sending and receiving queue in the hardware virtualization network card driver and the paravirtualization network card driver of the first host, when the first host switches to the migration state, the first The memory information of the virtual machine is synchronized to the second virtual machine. During the entire migration process, the first virtual machine interacts with I / O data through the combined send and receive queue driven by the paravirtualized network card and the paravirtualized network card of the SR‑IOV NIC. . Therefore, the present disclosure can automatically complete the switching of the migration state on the driver side without using binding software, which is beneficial to subsequent operation and maintenance, and can maintain high forwarding performance regardless of whether it is in the migration state or in the non-migration state.

Description

technical field [0001] The present disclosure relates to the technical field of cloud computing, and in particular, to a virtual machine migration method and device. Background technique [0002] SR-IOV (Single-Root I / O Virtualization, single-root I / O virtualization) technology allows efficient sharing of PCIe (Peripheral Component Interconnect Express, fast peripheral component interconnection bus) devices between virtual machines, so that VM (Virtual Machine, virtual machine) uses the device of the host machine to obtain higher I / O performance through hardware. [0003] SR-IOV NIC (Network Interface Card, network interface card) generally defines a PF (Physical Function, physical function) and several VF (Virtual Function, virtual function), PF and VF can be used as a separate network card, and VF generally passes The PCIe transparent transmission technology transparently transmits the hardware to the virtual machine, so that the hardware registers of the VF can be direct...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F9/455
Inventor 钟晋明
Owner NEW H3C CLOUD TECH CO LTD
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