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Methods and devices that invoke read-only devices

A device and device allocation technology, applied in the field of virtualization process, can solve the problems of increasing host work and complicated calling process, so as to improve operating efficiency and simplify the process of calling read-only devices

Inactive Publication Date: 2016-12-14
韩玉芹
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In this method, all data must be transferred through the host, which greatly increases the work of the host and makes the calling process very complicated

Method used

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  • Methods and devices that invoke read-only devices
  • Methods and devices that invoke read-only devices
  • Methods and devices that invoke read-only devices

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Embodiment Construction

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but 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 belong to the protection scope of the present invention.

[0030] The virtual machine in this embodiment of the present invention may run on a processor, or the processor may execute the method of this embodiment of the present invention. Multiple virtual machines can run on the same processor or a virtual machine can run. In the embodiment of the present invention, for convenience of description, a virtual machine directly associated with a read-only device is called a host, and other virtual machines su...

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Abstract

The embodiments of the present invention relate to a method and a device for invoking a read-only device. The method for calling the read-only device includes: allocating a data area for the read-only device in the memory space for storing the data of the read-only device; sending the address of the data area to the client, so that the client can Obtaining the data of the read-only device from the data area through the address of the data area. According to the embodiment of the present invention, by allocating the data area for the read-only device, when multiple clients call the read-only device, these clients can respectively establish connections with the data area, and directly obtain the information of the read-only device from the data area. The data is exempted from data transfer through the host directly operating the read-only device, which simplifies the process of multiple clients calling the read-only device and improves the operating efficiency of the system.

Description

technical field [0001] The embodiment of the present invention relates to a virtualization process, and more specifically, relates to a method and a device for invoking a read-only device. Background technique [0002] In the existing virtualization process, there is a common virtual device platform, including virtual sound cards, virtual graphics cards and other virtual devices, and the guest operating system (Guest OS, GOS, etc.) ) access to the virtual device in the virtual device platform, through the server operating system (Service OS, SOS) or the host operating system (Host OS, HOS) to access the real hardware. Guest operating systems may also be referred to as virtual operating systems. [0003] In a common virtualization environment, a virtual machine (host) that directly accesses a physical device forwards data to other virtual machines (clients). Only the host is directly associated with the physical device, and the client specifically operates the physical devic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F13/10
Inventor 秦晋
Owner 韩玉芹