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:
Aug. 11, 2026
Filed:
Dec. 13, 2024
Alipay (Hangzhou) Information Technology Co., Ltd., Hangzhou, CN;
Southern University of Science and Technology, Shenzhen, CN;
Fengwei Zhang, Hangzhou, CN;
Chenxu Wang, Hangzhou, CN;
Yunjie Deng, Hangzhou, CN;
Shoumeng Yan, Hangzhou, CN;
Zhengyu He, Hangzhou, CN;
Alipay (Hangzhou) Information Technology Co., Ltd., Hangzhou, CN;
Southern University of Science and Technology, Shenzhen, CN;
Abstract
A graphics processing unit (GPU) task is executed in a confidential compute architecture. GPU software in a non-secure world configures, based on task code and a cache description of a GPU task, a stub data structure including cache areas allocated based on the cache description and metadata indicating each cache area. In a realm segment in a memory, a root world root monitor configures a real data structure corresponding to the stub data structure, and stores to-be-processed confidential data. The root monitor updates a granule protection table (GPT) table so that based on an updated GPT table, a target segment storing the metadata and the task code is accessible to a GPU and has realm world permission for all other objects. The root monitor modifies a target mapping relationship so that the GPU executes the GPU task by using the target segment and the real data structure.