Translation invalidation filtering based on a context table within a processor core

Abstract

Implementations described herein relate to filtering translation invalidation messages within a core of a processor based on a context table. A core may include an address translation cache and a context table storing contexts in which the core has operated. A translation invalidation controller within the core may identify a context from a received translation invalidation message. Based on the context and the context table, the controller may determine if the address translation cache lacks entries targeted by the message. If so, the message may be discharged without accessing the address translation cache. This can reduce latency and processing overhead by avoiding unnecessary scans of the address translation cache for irrelevant messages. Corresponding processors and cores are also disclosed.