Invention Grant
US08555028B2 Computer-readable, non-transitory medium storing memory access control program, memory access control method, and information processing apparatus
有权
计算机可读的,非暂时性的介质存储存储器访问控制程序,存储器存取控制方法和信息处理装置
- Patent Title: Computer-readable, non-transitory medium storing memory access control program, memory access control method, and information processing apparatus
- Patent Title (中): 计算机可读的,非暂时性的介质存储存储器访问控制程序,存储器存取控制方法和信息处理装置
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Application No.: US13219809Application Date: 2011-08-29
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Publication No.: US08555028B2Publication Date: 2013-10-08
- Inventor: Naoki Nishiguchi , Noboru Iwamatsu
- Applicant: Naoki Nishiguchi , Noboru Iwamatsu
- Applicant Address: JP Kawasaki
- Assignee: Fujitsu Limited
- Current Assignee: Fujitsu Limited
- Current Assignee Address: JP Kawasaki
- Agency: Staas & Halsey LLP
- Priority: JP2010-211167 20100921
- Main IPC: G06F12/10
- IPC: G06F12/10

Abstract:
A method of causing an information processing apparatus to execute, the method including: performing a management procedure to accept addresses of respective page tables generated for each of operation modes from an operating system that manages the virtual address space and to associate the addresses with the operating system to be recorded in page table correspondence information storage; executing a control procedure to set a second access right indicating a value lower than the first access right in accordance with the operation mode of the operating system; and processing a processing procedure to cause the memory management device to execute a flush of a translation look-aside buffer, and to set the second access right indicating a value for validating the first access right, wherein the memory management device performs a control on the memory access while the second access right is prioritized over the first access right.
Public/Granted literature
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