Method and system for safely transmitting data among parallel-running multiple user operating systems

Abstract

The invention is suitable for the technical field of computers, providing a method and system for safely transmitting data among parallel-running multiple user operating systems. The method comprises the following steps: a data transmission module applies for a shared physical memory; the data transmission module applies for a virtual memory page from the operating system; the data transmission module converts the virtual address of the virtual memory page to generate a physical address corresponding to the virtual address, and stores the direct mapping relationship between the virtual address and the physical address in front of the shared physical memory; the data transmission module transmits the physical address of the virtual memory page to a virtual machine monitor to achieve the purpose of mapping the virtual address to the physical address again; the virtual machine monitor maps the physical addresses submitted by the user operating systems to the same shared physical memory; and the data transmission module writes data into the shared physical memory or reads data from the shared physical memory. By utilizing the method and the system, data can be exchanged without a third party tool, and the operation is safe and convenient.

Description

technical field [0001] The invention belongs to the technical field of computers, and in particular relates to a method and a system for safely transmitting data between operating systems of multiple users running in parallel. Background technique [0002] The traditional multi-user (dual) operating system parallel operation scheme is realized through the complete independent operation of multiple hosts. In this way, the data transmission between multi-(dual) user operating systems must rely on external storage devices, such as through U disk, Hard disks, etc., are inconvenient to operate, and these external storage devices may be stolen, lost or infected with viruses, posing security risks; the other is to use traditional hard disk sharing technology. However, these two technologies are all data sharing methods used when multiple hosts run multi-user (dual) operating systems independently, and are not suitable for computer systems in which multiple (dual) user operating sys...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the embodiments of the present invention is to provide a method for secure data transmission between parallel running multi-user operating systems, aiming at solving the problem that the data transmission method provided by the prior art cannot be applied to data transmission between parallel running multi-user operating systems. Some data transmission methods are inconvenient to operate or have low security

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