发明授权
US09032174B2 Information processing apparatus for restricting access to memory area of first program from second program
有权
用于从第二程序限制对第一程序的存储区域的访问的信息处理装置
- 专利标题： Information processing apparatus for restricting access to memory area of first program from second program
- 专利标题（中）： 用于从第二程序限制对第一程序的存储区域的访问的信息处理装置
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申请号： US13763918申请日： 2013-02-11
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公开(公告)号： US09032174B2公开(公告)日： 2015-05-12
- 发明人: Naoki Nishiguchi
- 申请人： Fujitsu Limited
- 申请人地址： JP Kawasaki
- 专利权人： Fujitsu Limited
- 当前专利权人： Fujitsu Limited
- 当前专利权人地址： JP Kawasaki
- 代理机构： Fujitsu Patent Center
- 优先权： JP2012-059458 20120315
- 主分类号： G06F13/00
- IPC分类号： G06F13/00 ; G06F12/14
摘要：
A processor determines whether a first program is under execution when a second program is executed, and changes a setting of a memory management unit based on access prohibition information so that a fault occurs when the second program makes an access to a memory when the first program is under execution. Then, the processor determines whether an access from the second program to a memory area used by the first program is permitted based on memory restriction information when the fault occurs while the first program and the second program are under execution, and changes the setting of the memory management unit so that the fault does not occur when the access to the memory area is permitted.
公开/授权文献
- US20130246728A1 INFORMATION PROCESSING APPARATUS 公开/授权日：2013-09-19
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