公开(公告)号：US07406581B2

公开(公告)日：2008-07-29

申请号：US10830717

申请日：2004-04-23

Applicant: Trevor Southwell

Inventor： Trevor Southwell

IPC: G06F12/14

CPC classification number: G06F12/145 ,  G06F9/3842 ,  G06F9/3861 ,  G06F12/1441

Abstract: A method and system for validating speculative load operations. The system identifies speculative load operations that might be executed in a code sequence and after translating the virtual address of the speculative load to a physical address, a speculative load control unit is used to define a plurality of memory regions and has means for checking whether the physical addresses lie within at least one of said defined memory regions. In this way, the control unit allows the mapping of large physical page size to RAM devices and the extra address space is filtered off by the control unit so that speculative loads are not carried out in unknown regions.

Abstract translation: 一种用于验证投机负载操作的方法和系统。 该系统识别可能在代码序列中执行的推测加载操作，并且在将推测负载的虚拟地址转换为物理地址之后，推测负载控制单元用于定义多个存储器区域，并且具有用于检查是否 物理地址位于所述定义的存储区域的至少一个内。 以这种方式，控制单元允许将大的物理页面大小映射到RAM设备，并且由控制单元滤除额外的地址空间，以便在未知区域中不执行推测负载。