Instruction and Logic for Speculative Request Support for Prefetching

摘要

A processor includes a core and a prefetcher. The prefetcher includes logic to issue a request for data including a requested prefetch. The core includes logic to receive an indication of the request, determine whether the request is for a restricted region of memory, and, based upon whether the request is for the restricted region of memory, allow or deny the request.

主权项

1. A processor, comprising:
a prefetcher including a first logic to issue a request for data, the request including a requested prefetch of the data; and a core, including:
a second logic to receive an indication of the request;a third logic to determine whether the request is for a region of restricted memory; anda fourth logic to, based upon whether the request is for the live region of the execution transaction, allow or deny the request.