发明授权
- 专利标题： Securing safety-critical variables
- 专利标题（中）： 确保安全关键变量
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申请号： US12259587申请日： 2008-10-28
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公开(公告)号： US08117412B2公开(公告)日： 2012-02-14
- 发明人: Mark H. Costin , Mingguang Yu , James T. Kurnik , Trenton W. Haines , Paul A. Bauerle
- 申请人： Mark H. Costin , Mingguang Yu , James T. Kurnik , Trenton W. Haines , Paul A. Bauerle
- 专利权人： GM Global Technology Operations LLC
- 当前专利权人： GM Global Technology Operations LLC
- 主分类号： G06F12/00
- IPC分类号： G06F12/00 ; G06F13/00 ; G06F13/28
摘要：
A system comprises a general-purpose memory, a lockable memory, a memory management unit, and a processor. The general-purpose memory includes data for a first set of addresses. The lockable memory includes data for a second set of addresses. The memory management unit selectively writes data to one of the general-purpose memory and the lockable memory and selectively locks the lockable memory by preventing writes to the lockable memory. The processor instructs the memory management unit to unlock the lockable memory before requesting a write to one of the second set of addresses.
公开/授权文献
- US20090235019A1 SECURING SAFETY-CRITICAL VARIABLES 公开/授权日：2009-09-17
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