Title:
METHOD FOR ACCESSING TRANSLATION LOOKASIDE BUFFER, TRANSLATION LOOKASIDE BUFFER, PROCESSOR CHIP, AND STORAGE UNIT
Document Type and Number:
WIPO Patent Application WO/2018/036486
Kind Code:
A1
Abstract:
A method for accessing a translation lookaside buffer, a translation lookaside buffer, a processor chip, and a storage unit are provided. The method comprises: receiving a first request transmitted by a processor, the first request being configured to request a first physical frame number corresponding to a first virtual address (710); determining a first large virtual page number corresponding to the first virtual address and a first position of a first virtual page corresponding to the first virtual address in a first large virtual page (720); determining that there is a first entry corresponding to the first large virtual page number in an entry set (730); determining, according to a bit value corresponding to the first position in a valid indicator field of the first entry, that the first virtual page is mapped by the first entry (740); determining, according to a value of an element corresponding to the first position in an index field in the first entry, a second position of a first physical page corresponding to the first virtual page in a first large physical page identified by a first large physical frame number (750); determining, according to the first large physical frame number and the second position, the first physical frame number (760); and sending the first physical frame number to the processor (770). The method of the present invention can improve the effective capacity of a translation lookaside buffer.
Inventors:
CAI WEIGUANG (CN)
ZHENG LIBING (CN)
ZHANG HUIMIN (CN)
ZHENG LIBING (CN)
ZHANG HUIMIN (CN)
Application Number:
PCT/CN2017/098494
Publication Date:
March 01, 2018
Filing Date:
August 22, 2017
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
G06F12/02
Foreign References:
| CN104216833A | 2014-12-17 | |||
| CN102184142A | 2011-09-14 | |||
| CN104899159A | 2015-09-09 | |||
| US8327187B1 | 2012-12-04 |
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