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METHOD FOR ACCESSING TABLE ENTRY IN TRANSLATION LOOKASIDE BUFFER (TLB) AND PROCESSING CHIP
专利权人:
HUAWEI TECHNOLOGIES CO., LTD.
发明人:
CAI, Weiguang,GU, Xiongli,FANG, Lei
申请号:
WO2016CN94732
公开号:
WO2018027839(A1)
申请日:
2016.08.11
申请国别(地区):
世界知识产权组织国际局
年份:
2018
代理人:
摘要:
A method for accessing a table entry in a translation lookaside buffer (TLB) and a processing chip. The method comprises: the table entry comprising at least one combined table entry, the combined table entry comprising a virtual greater page number, a bit vector field and a physical greater frame number, the virtual greater page number being the identifier of N consecutive virtual pages, the bit vector field comprising N bits, the N bits corresponding to the N consecutive virtual pages one to one, the N bits being used for respectively identifying the page table presence of the N consecutive virtual pages, the physical greater frame number being the identifier of N consecutive physical frames corresponding to the N consecutive virtual pages. One table entry is used to represent multiple virtual page-physical frame mappings, which, in cases where the length of a page table is fixed, can multiply the number of table entries in a TLB, thereby increasing the probability of TLB hit and reducing TLB Misses, and th
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