公开(公告)号：US11972285B2

公开(公告)日：2024-04-30

申请号：US16719282

申请日：2019-12-18

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Qixuan Wu ,  Lei Dai ,  Shanxi Chen

IPC: G06F9/48 ,  G06F9/455

CPC classification number: G06F9/4812 ,  G06F9/45558 ,  G06F2009/45562 ,  G06F2009/45575

Abstract: This application provides a virtualized device, and an interrupt processing method running on the virtualized device. The method includes: performing, by a processor, the following operations in a guest mode: receiving, by the processor, an interrupt request from hardware; determining, by the processor, a processing entity of the received interrupt request based on a correspondence between the interrupt request and the processing entity; and when the processing entity of the received interrupt request includes the virtual processor currently running on the processor, determining, by the processor based on a correspondence between the interrupt request and an interrupt service routine, the interrupt service routine corresponding to the received interrupt request, and invoking the interrupt service routine to process the interrupt request. In this manner, trap-in and trap-out of a processor can be avoided for an application interrupt request, thereby reducing a processing delay of the application interrupt request.

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.