Method and system for dynamically distributing embedded virtual memory

Abstract

The invention discloses a method and a system for dynamically distributing an embedded virtual memory. By the method for dynamically distributing the memory, memory resource waste due to the conventional embedded virtual fixed memory distribution can be avoided effectively. The system comprises a memory management module, an embedded virtual machine memory monitoring module and an embedded virtual machine module, wherein the virtual machine memory monitoring module is used for monitoring a real-time memory requirement condition of an embedded system in real time; the memory management module is used for initializing memory distribution, establishing an initialized memory mapping table and updating the memory distribution and the memory mapping table in real time according to a monitoring situation of the virtual machine memory monitoring module; and the embedded virtual machine module is used for generating an embedded hardware virtual environment and running an embedded operating system, and performing various embedded applications on the embedded operating system.

Description

technical field [0001] The invention relates to the field of embedded virtualization. Background technique [0002] With the continuous increase of enterprise hardware costs, virtualization technology has made great progress due to its characteristics of cost reduction and security. However, embedded virtualization is still in its initial stage. Traditional embedded virtualization adopts a fixed memory allocation method, that is, If the virtual object needs 512M memory, it will allocate 512M memory in the host memory for the memory of the virtual object, regardless of the real-time memory requirements. In specific applications, although the maximum memory required by the virtual object is 512M, it does not mean that The 512M memory needs to be occupied all the time. Therefore, the method of allocating fixed memory space will lead to waste of memory. Further, for embedded virtualization, if a single host supports multiple embedded virtualization systems, the resulting memory ...

AI Technical Summary

Problems solved by technology

[0002] With the continuous increase of enterprise hardware costs, virtualization technology has made great progress due to its characteristics of cost reduction and security. However, embedded virtualization is still in its initial stage. Traditional embedded virtualization adopts a fixed memory allocation method, that is, If the virtual object needs 512M memory, it will allocate 512M memory in the host memory for the memory of the virtual object, regardless of the real-time memory requirements. In specific applications, although the maximum memory required by the virtual object is 512M, it does not mean that The 512M memory needs to be occupied all the time. Therefore, the method of allocating fixed memory space will lead to waste of memory. Further, for embedded virtualization, if a single host supports multiple embedded virtualization systems, the resulting memory waste is more serious

Images