Address conversion method, address conversion module and address conversion system

Abstract

The embodiment of the invention provides an address conversion method, an address conversion module and an address conversion system, and the method comprises the steps: obtaining a memory access request which comprises a target virtual address; judging whether the target virtual address is matched with a preset virtual address of a first type of physical pages or not, wherein the storage space mapped by the first type of physical pages is not smaller than a set storage space; if the target virtual address is matched with a preset virtual address of a first type of physical page, determining atarget physical address base address corresponding to the target virtual address according to a preset physical address base address corresponding to the virtual address of the first type of physicalpage; and determining a physical address corresponding to the target virtual address according to the target physical address base address. According to the embodiment of the invention, the address conversion modes can be distinguished for different sizes of physical pages, the address conversion delay for a larger physical page is reduced, and the address conversion efficiency is improved.

Description

Technical field [0001] The embodiment of the present invention relates to the technical field of memory access, in particular to an address conversion method, an address conversion module and a system. Background technique [0002] Modern operating systems generally use virtual memory management (Virtual Memory Management) mechanism to run storage space with processes that break through physical memory limitations, that is, use virtual storage space larger than physical memory to run operating system processes, thereby solving the storage requirements for process operation When the space is larger than the physical memory, the process is difficult to run. [0003] In the virtual memory management mechanism, the operation of the process depends on the virtual address of the virtual storage space (virtual address can be considered as the private address space provided by the virtual storage space for the process), and physical memory uses physical addresses. Therefore, in modern comp...

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Problems solved by technology

[0004] It can be seen that when the access unit accesses the physical memory, the address translation efficiency is very important. If the address translation delay is large, it is likely to affect the physical memory access efficiency; therefore, how to improve the address translation efficiency has always been studied by those skilled in the art. question

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