专利名称:Execute-only memory and mechanism
enabling execution from execute-only
memory for minivisor
发明人:Benjamin C. Serebrin
申请号:US12272951
申请日:20081118
公开号:US08352670B2
公开日:
20130108
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专利附图:
摘要:In one embodiment, a processor compris an execution core configured to execute instructions; and a register configured to store an execute-only valid indication
indicative of whether or not execution of instructions is permitted in pages that are indicated as execute-only in a t of page tables ud by the processor for address translation. The execution core is configured, responsive to a fetch within an execute-only page, to signal a fault responsive to the execute-only valid indication indicating that execution is not permitted in the execute-only page, and wherein the execution core is configured to permit the fetch within the execute-only page responsive to the execute-only valid indication indicating that execution is permitted in the execute-only page.
申请人:Benjamin C. Serebrin
地址:Sunnyvale CA US
国籍:US
代理机构:Meyertons, Hood, Kivlin, Kowert & Goetzel, P.C.
代理人:Lawrence J. Merkel
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