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:
Feb. 11, 2025
Filed:
Sep. 15, 2023
Shanghai Zhaoxin Semiconductor Co., Ltd., Shanghai, CN;
Yingbing Guan, Shanghai, CN;
Zhenhua Huang, Beijing, CN;
Yanting Li, Beijing, CN;
Yipu Liu, Shanghai, CN;
SHANGHAI ZHAOXIN SEMICONDUCTOR CO., LTD., Shanghai, CN;
Abstract
A processor for building a homogeneous dual computing system is shown. The processor has a trusted core, a normal core, and a shared cache. The trusted core has an access right to an isolated storage space of a system memory. The normal core is homogeneous with the trusted core, and is prohibited from accessing the isolated storage space. In response to a cache flush instruction issued by the normal core, the trusted core initiates and executes a second cache write-back instruction that is different from the first cache write-back instruction. According to the second cache write-back instruction, isolated data associated with the isolated storage space and cached in the shared cache is written back to the isolated storage space before being flushed.