An address translation method, address translation module and system

Abstract

An embodiment of the present invention provides an address translation method, an address translation module, and a system, wherein the method includes: obtaining a memory access request, the memory access request including a target virtual address; judging whether the target virtual address matches a preset first type The virtual address of the physical page matches, and the storage space mapped by the first type of physical page is not less than the set storage space size; if the target virtual address matches the preset virtual address of the first type of physical page, according to the preset The physical address base address corresponding to the virtual address of the first type of physical page is set, and the target physical address base address corresponding to the target virtual address is determined; according to the target physical address base address, the physical address corresponding to the target virtual address is determined . The embodiments of the present invention can distinguish address conversion modes for physical pages of different sizes, reduce address conversion delay for larger physical pages, and improve address conversion efficiency.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of memory access, and in particular to an address conversion method, an address conversion module and a system. Background technique [0002] Modern operating systems generally adopt the Virtual Memory Management (Virtual Memory Management) mechanism to break through the physical memory limit of the process running storage space, that is, to use the virtual storage space with a storage space larger than the physical memory to run the process of the operating system, so as to solve the storage required by the process operation. When the space is larger than the physical memory, it is difficult for the process to run. [0003] In the virtual memory management mechanism, the process running depends on the virtual address of the virtual storage space (the virtual address can be considered as the private address space provided by the virtual storage space for the process), while the phys...

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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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