Title:
MAPPING PROCESSING METHOD AND DEVICE FOR CACHE ADDRESS
Document Type and Number:
WIPO Patent Application WO/2015/131853
Kind Code:
A1
Abstract:
Provided are a mapping processing method and device for a cache address. The embodiment of the method comprises: acquiring a physical address corresponding to an access address which is sent by a processing core, the physical address comprising a physical page number (PPN) and a page offset (301); and mapping the physical address into a cache address, the cache address comprising a cache set index 1, a cache tag, a cache set index 2 and a cache block offset in sequence, wherein a cache set index is formed by the cache set index 1 located at a high bit and the cache set index 2 located at a low bit together, and the cache set index 1 is located within the coverage range of the PPN (302). By mapping some bits of a large-page PPN in the set index of a cache, an operating system can use same to conduct colouring, thereby satisfying the requirement of simultaneously using the large page technology and the page-colouring cache-partitioning technology, and improving the large-page and page-colouring cache-partitioning performance.
Inventors:
CUI ZEHAN (CN)
CHEN LICHENG (CN)
CHEN MINGYU (CN)
CHEN LICHENG (CN)
CHEN MINGYU (CN)
Application Number:
PCT/CN2015/073789
Publication Date:
September 11, 2015
Filing Date:
March 06, 2015
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
G06F12/08
Foreign References:
| CN101727405A | 2010-06-09 | |||
| US6581140B1 | 2003-06-17 | |||
| US5860151A | 1999-01-12 | |||
| US20040078544A1 | 2004-04-22 |
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