Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
System and method for maintaining translation look-aside buffer (TLB) consistency










Image Number 9 for United States Patent #6105113.

A system and method for maintaining consistency between translational look-aside buffers (TLB) and page tables. A TLB has a TLB table for storing a list of virtual memory address-to-physical memory address translations, or page table entries (PTES) and a hardware-based controller for invalidating a translation that is stored in the TLB table when a corresponding page table entry changes. The TLB table includes a virtual memory (VM) page tag and a page table entry address tag for indexing the list of translations The VM page tag can be searched for VM pages that are referenced by a process. If a referenced VM page is found, an associated physical address is retrieved for use by the processor. The TLB controller includes a snooping controller for snooping a cache-memory interconnect for activity that affects PTEs. The page table entry address tag can be searched by a search engine in the TLB controller for snooped page table entry addresses. The TLB controller includes an updating module for invalidating or updating translations associated with snooped page table entry addresses. Translations in TLBs are thus updated or invalidated through hardware when an operating system changes a PTE, without intervention by an operating system or other software.








 
 
  Recently Added Patents
Catalysts for polyurethane coating compounds
Hand-held electronic display device
Self-service channel marketplace
Immunotherapy in cancer treatment
Method and apparatus for monitoring and/or controlling the curing of cements used in medical procedures
System, apparatus, and method for fast startup of USB devices
Headphone
  Randomly Featured Patents
Process of pretreatment prior to paint coating
Plastic closure with compression molded layered barrier liner
Catalysts and process for ring opening of cyclic compounds
Micro-electromechanical actuating mechanism with built-in test circuit
Electronic animal control device
Ink-jet head and printer using the same
Optical pickup using laser light of different wavelengths to record and reproduce information to/from a disk
Container for the apportioning in enteric feeding
Use of 3-benzalphthalides as UV stabilizers for thermoplastic, aromatic polyesters, polycarbonates and polyester carbonates
Reel mower discharge safety guard