MPK technology-based inter-microkernel-module communication method and system, and medium

A technology of a kernel module and a communication method, applied in the field of data communication, to achieve the effect of reducing IPC performance overhead

Pending Publication Date: 2020-11-17
SHANGHAI JIAO TONG UNIV
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  • Abstract
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AI Technical Summary

Benefits of technology

This new method helps reduce CPU usage by reducing network traffic without compromising its effectiveness or reliability. It also improves overall system efficiency while maintaining high-level encryption protection against attacks from external sources like man-infected machines (MII).

Problems solved by technology

This patented technical problem addressed in this patents relates to improving the efficiency and reliability of computer systems' cores when performing certain types of processing tasks like packet manipulation. Specifically, there exist various techniques called MPIF (Multiple Programming Factor) mechanisms that allow shared resources across partitions without compromising their safety guarantees. These include both physical partitioned memories and logical partitioned memory where users have exclusive rights over specific parts of the program execution environment. Additionally, some applications may also involve accessing protected areas outside the boundaries of the programs themselves instead of inside them due to privacy concerns.

Method used

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  • MPK technology-based inter-microkernel-module communication method and system, and medium
  • MPK technology-based inter-microkernel-module communication method and system, and medium

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Embodiment Construction

[0053] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that for those of ordinary skill in the art, several changes and improvements can be made without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0054] A communication method between microkernel modules based on MPK technology provided according to the present invention includes:

[0055] Execution domain steps based on MPK technology: control the read and write permissions of the memory domain through MPK technology, and isolate resources and states between execution domains;

[0056] Steps of the checkpoint function of the communication between kernel modules: The checkpoint function modifies the current read and write permissions of t

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Abstract

The invention provides an MPK technology-based inter-microkernel-module communication method and system, and a medium, and the method comprises the steps: an execution domain step based on MPK technology: controlling the read-write authority of a memory domain through the MPK technology, and separating the resources and states of execution domains from each other; a checkpoint function step of communication between the kernel modules, wherein a checkpoint function modifies the read-write permission of a memory domain at the current moment through a WRPKRU instruction, and switching of an execution domain is carried out; and in the execution domain to which the kernel module of the requested service belongs, requesting the service of the kernel module in the checkpoint function in the formof function call. According to the invention, the IPC performance overhead of a microkernel is effectively reduced, and the microkernel applying the invention has the same safety guarantee as the traditional microkernel through the MPK technology.

Description

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Claims

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Application Information

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Owner SHANGHAI JIAO TONG UNIV
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