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:
Jul. 04, 2023
Filed:
Jan. 04, 2019
Baidu Usa Llc, Sunnyvale, CA (US);
Baidu.com Times Technology (Beijing) Co., Ltd., Beijing, CN;
Kunlunxin Technology (Beijing) Company Limited, Beijing, CN;
Yong Liu, Sunnyvale, CA (US);
Yueqiang Cheng, Sunnyvale, CA (US);
Jian Ouyang, Beijing, CN;
Tao Wei, Sunnyvale, CA (US);
BAIDU USA LLC, Sunnyvale, CA (US);
BAIDU.COM TIMES TECHNOLOGY (BEIJING) CO., LTD., Beijing, CN;
KUNLUNXIN TECHNOLOGY (BEIIING) COMPANY LIMITED, Beijing, CN;
Abstract
According to one embodiment, a system performs a secure boot using a security module such as a trusted platform module (TPM) of a host system. The system establishes a trusted execution environment (TEE) associated with one or more processors of the host system. The system launches a memory manager within the TEE, where the memory manager is configured to manage memory resources of a data processing (DP) accelerator coupled to the host system over a bus, including maintaining memory usage information of global memory of the DP accelerator. In response to a request received from an application running within the TEE for accessing a memory location of the DP accelerator, the system allows or denies the request based on the memory usage information.