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:
May. 18, 2021
Filed:
Apr. 01, 2019
Applicant:
Huawei Technologies Co., Ltd., Shenzhen, CN;
Assignee:
HUAWEI TECHNOLOGIES CO., LTD., Shenzhen, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 16/188 (2019.01); G06F 16/00 (2019.01); G06F 16/176 (2019.01); G06F 9/455 (2018.01);
U.S. Cl.
CPC ...
G06F 16/188 (2019.01); G06F 9/45558 (2013.01); G06F 16/00 (2019.01); G06F 16/176 (2019.01); G06F 2009/45583 (2013.01);
Abstract
The present disclosure discloses a file access method of a virtualization instance, including performing union on some image subfiles in a host operating system (host OS) and mounting a united directory to a union directory, and when an application in a library operating system instance needs to access a file in the union directory, causing a central processing unit to generate an exit event such that a hypervisor captures and processes the exit event, and during processing, converts an access request that is from the instance into an access request based on a system call of the host OS, and performs access.