发明申请
- 专利标题: INFORMATION PROCESSING APPARATUS
- 专利标题(中): 信息处理装置
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申请号: US13147208申请日: 2010-10-29
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公开(公告)号: US20110289294A1公开(公告)日: 2011-11-24
- 发明人: Manabu Maeda , Takayuki Ito , Tomoyuki Haga , Hideki Matsushima
- 申请人: Manabu Maeda , Takayuki Ito , Tomoyuki Haga , Hideki Matsushima
- 优先权: JP2009-283423 20091214
- 国际申请: PCT/JP2010/006396 WO 20101029
- 主分类号: G06F12/14
- IPC分类号: G06F12/14
摘要:
An information processing apparatus includes: a CPU (1201) that has, as an operating mode, a privileged mode and an unprivileged mode; a trusted memory (1270) that stores protected data, the protected data being accessed when the CPU (1201) is in the unprivileged mode; and a trusted memory control unit (1203) that controls access to the trusted memory (1270). When the CPU (1201) accesses the trusted memory (1270), the trusted memory control unit (1203) determines the operating mode of the CPU (1201) and, in the case where the operating mode of the CPU (1201) is the unprivileged mode, denies the access to the trusted memory (1270) by the CPU (1201).
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