公开(公告)号：US20100088739A1

公开(公告)日：2010-04-08

申请号：US12245964

申请日：2008-10-06

申请人： William E. Hall ,  Guerney D. H. Hunt ,  Paul A. Karger ,  Mark F. Mergen ,  David R. Safford ,  David C Toll

发明人： William E. Hall ,  Guerney D. H. Hunt ,  Paul A. Karger ,  Mark F. Mergen ,  David R. Safford ,  David C Toll

IPC分类号： G06F12/14 ,  G06F21/00

CPC分类号： G06F12/1483 ,  G06F21/629 ,  G06F21/71

摘要： Hardware mechanisms are provided for performing hardware based access control of instructions to data. These hardware mechanisms associate an instruction access policy label with an instruction to be processed by a processor and associate an operand access policy label with data to be processed by the processor. The instruction access policy label is passed along with the instruction through one or more hardware functional units of the processor. The operand access policy label is passed along with the data through the one or more hardware functional units of the processor. One or more hardware implemented policy engines associated with the one or more hardware functional units of the processor are utilized to control access by the instruction to the data based on the instruction access policy label and the operand access policy label.

摘要翻译： 硬件机制被提供用于执行对数据的指令的基于硬件的访问控制。 这些硬件机制将指令访问策略标签与要由处理器处理的指令相关联，并将操作数访问策略标签与要由处理器处理的数据相关联。 指令访问策略标签与指令一起通过处理器的一个或多个硬件功能单元传递。 操作数访问策略标签与数据一起通过处理器的一个或多个硬件功能单元传递。 与处理器的一个或多个硬件功能单元相关联的一个或多个硬件实现的策略引擎被用于基于指令访问策略标签和操作数访问策略标签来控制对数据的指令的访问。