发明名称 |
Method and apparatus for improved security in a data processor |
摘要 |
A method and apparatus for controlling access to segments of memory having security data stored therein is provided. A security check unit maintains information for a plurality of segments of memory regarding whether each of these plurality of segments has secure data stored therein. A hint directory maintains information regarding whether any of a plurality of these segments has secure data stored therein. The hint directory is capable of bypassing the security check unit when it receives an address that falls within a plurality of the segments that have been indicated as being free from secure data. When the hint directory determines that a received address falls within one of a plurality of segments that contain secure data, then the address is passed to the security check unit for a closer examination.
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申请公布号 |
US2003188184(A1) |
申请公布日期 |
2003.10.02 |
申请号 |
US20020107633 |
申请日期 |
2002.03.27 |
申请人 |
STRONGIN GEOFFREY S.;BARNES BRIAN C.;SCHMIDT RODNEY |
发明人 |
STRONGIN GEOFFREY S.;BARNES BRIAN C.;SCHMIDT RODNEY |
分类号 |
G06F21/02;G06F12/14;G06F21/00;G06F21/22;(IPC1-7):H04L9/32 |
主分类号 |
G06F21/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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