发明名称 |
A HARDWARE COMMAND FILTER MATRIX INTEGRATED CIRCUIT WITH RESTRICTED COMMAND ENFORCEMENT CAPABILITY |
摘要 |
A semiconductor integrated circuit includes a hardware mechanism arranged to ensure that associations between instructions and data are enforced so that a processor cannot execute an instruction that is not authorized. A Command Filter Matrix stores entries comprising instructions and associated data memory ranges. A hardware arrangement denies command execution if the CPU attempts to make a data fetch from an instruction that is outside the range associated with data in the Command Filter Matrix. The Command Filter Matrix may be implemented in a Field Programmable Gate Array such that the memory cell content is pre-programmed with entrusted code by a separate trusted hardware source. In this way, an operating system may function normally but only execute trusted instructions, commands and memory operations. The Command Filter Matrix also contains external write-only capability to enable external monitoring of performance. |
申请公布号 |
WO2011005890(A2) |
申请公布日期 |
2011.01.13 |
申请号 |
WO2010US41254 |
申请日期 |
2010.07.07 |
申请人 |
KUITY CORP. |
发明人 |
MCPHAIL, LON, DANIEL;GILLETT, DAVID, S. |
分类号 |
G06F13/14;G06F9/30;G06F12/14 |
主分类号 |
G06F13/14 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|