公开(公告)号：US20190227995A1

公开(公告)日：2019-07-25

申请号：US16371503

申请日：2019-04-01

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lei Ye ,  Qixuan Wu ,  Lei Dai

IPC: G06F16/188 ,  G06F9/455 ,  G06F16/176

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.

公开(公告)号：US11010355B2

公开(公告)日：2021-05-18

申请号：US16371503

申请日：2019-04-01

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lei Ye ,  Qixuan Wu ,  Lei Dai

IPC: G06F16/188 ,  G06F16/00 ,  G06F16/176 ,  G06F9/455

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.