MEMORY INITIALIZATION IN A PROTECTED REGION

The present disclosure provides a processor device comprising a processor core and a memory controller coupled with the processor core to provide access to main memory. The main memory is to include a protected region of an application address space to store secured pages. The processor core is to p...

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Bibliographic Details
Main Authors MCKEEN, Francis X, ROZAS, Carlos V, LESLIE-HURD, Rebekah M, ZMUDZINSKI, Krystof C
Format Patent
LanguageEnglish
French
German
Published 08.06.2022
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Summary:The present disclosure provides a processor device comprising a processor core and a memory controller coupled with the processor core to provide access to main memory. The main memory is to include a protected region of an application address space to store secured pages. The processor core is to perform operations in response to a content copy instruction, the content copy instruction to indicate an address of a source page and an address of a target page in the protected region of the application address space. The operations include to: initialize the target page in the protected region of the application address space; select content of the source page to be copied; copy the selected content to the target page in the protected region of the application address space; and modify an access permission level of the target page.
Bibliography:Application Number: EP20150844284