The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 15, 2022
Filed:
Mar. 19, 2020
Applicant:
Huawei Technologies Co., Ltd., Shenzhen, CN;
Inventor:
Shengwen Lu, Hangzhou, CN;
Assignee:
HUAWEI TECHNOLOGIES CO., LTD., Shenzhen, CN;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 13/42 (2006.01); G06F 9/455 (2018.01); G06F 13/20 (2006.01);
U.S. Cl.
CPC ...
G06F 13/42 (2013.01); G06F 9/45558 (2013.01); G06F 13/20 (2013.01); G06F 2009/45579 (2013.01);
Abstract
In a data access method, a processor of a host converts a first descriptor recognized by a virtual machine interface card of the virtual machine into a second descriptor recognized by a physical interface card of the host. The first descriptor includes a virtual machine physical memory address and a data length of accessible data. The physical interface card of the host obtains, based on the second descriptor, a physical address that is in a memory and to which the virtual machine physical memory address is mapped, and accesses the accessible data according to the physical address in the memory.