Behavioral implementation of a double fault stack in a computer system

An example method of exception handling in a computer system is described. The computer system includes a physical central processing unit (PCPU) and a system memory, the system memory storing a first stack, a second stack, and a double fault stack associated with the PCPU. The method includes: stor...

Full description

Saved in:
Bibliographic Details
Main Authors Hiriyuru, Shruthi Muralidhara, Fainkichen, Alexander, Duchesne, Regis, Kotian, Sunil Kumar, Li, Ye, Warkentin, Andrei, Laplace, Cyprien
Format Patent
LanguageEnglish
Published 15.10.2024
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
Online AccessGet full text

Cover

More Information
Summary:An example method of exception handling in a computer system is described. The computer system includes a physical central processing unit (PCPU) and a system memory, the system memory storing a first stack, a second stack, and a double fault stack associated with the PCPU. The method includes: storing, by an exception handler executing in the computer system, an exception frame on the double fault stack in response to a stack overflow condition of the first stack; switching, by the exception handler, a first stack pointer of the PCPU from pointing to the first stack to pointing to the double fault stack; setting a current stack pointer of the PCPU to the first stack pointer; and executing software on the PCPU with the current stack pointer pointing to the double fault stack.
Bibliography:Application Number: US202117559346