Address Translator Segmentation for Multi-OS Overhead Reduction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Systems running multiple operating systems with a hybrid method face high system loads and overhead due to algorithm and control circuit complexities, particularly in switching between operating systems, as conventional address translators require changes in address buffer contents to avoid address map interference.
Innovation Solution
An address translator with separate address translation buffers and a controller that classifies and stores virtual and real addresses based on multiple operating systems, allowing translation without changing buffer contents when switching between operating systems, utilizing a combination of set associative and fully associative RAMs to manage virtual and real addresses efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional address translators change address buffer contents when switching between operating systems, then address map interference is avoided, but system load and overhead increase due to algorithm and control circuit complexities
Solution Approach 1:
The address translation buffer is segmented into multiple buffers, with each buffer dedicated to a specific operating system. This segmentation allows each OS to have its own isolated address translation space, eliminating the need to change buffer contents when switching between OSs, thereby reducing system load and overhead while maintaining reliable address map isolation.
2Quantity of substance
If address translation buffers are switched according to supervisor mode or user mode, then memory resources are saved, but switching overhead between operating systems increases
Solution Approach 1:
The address translation buffer is divided into multiple OS-specific buffers, allowing each operating system to have dedicated translation space. This eliminates the need for buffer switching when transitioning between OSs, as each OS already has its own buffer allocated, thereby reducing switching overhead while maintaining efficient memory resource utilization.
3Adaptability or versatility
If multiple operating systems run with hybrid method, then real-time processing capability is improved, but address translation complexity and system overhead increase
Solution Approach 1:
The address translation buffer is segmented into multiple independent buffers, one for each operating system. This segmentation enables multiple OSs to run simultaneously with their own dedicated address translation spaces, supporting real-time processing requirements while simplifying address translation complexity through isolation and avoiding the need for complex buffer switching algorithms.
Data Source
AI summary
An address translator capable of reducing system loads in address translation and an overhead in switching between operating systems. A plurality of address translation buffers classifies and stores virtual addresses and real addresses based on a plurality of operating systems which is run by a processor. For example, the address translation buffers store the virtual addresses and the real addresses in correspondence with the operating systems. According to a running operating system, an address translation controller accesses a corresponding address translation buffer to translate virtual addresses to real addresses.