SHARING PROGRAM INTERRUPT LOGIC IN A MULTITHREADED PROCESSOR

摘要

In one embodiment, a computer-implemented method includes requesting, by a first processor thread of a computer processor, access to exception tracking logic. The exception tracking logic is accessible by two or more processor threads. The first processor thread receives access to the exception tracking logic. The first processor thread executes a process in slow mode. Based on detecting an exception in slow mode, the first processor thread stores, in the exception tracking logic, exception information about the exception. The exception information is copied from the exception tracking logic to a set of external registers outside the exception tracking logic. The exception tracking logic is released to allow access to the exception tracking logic by other processor threads of the two or more processor threads.

主权项

1. A computer-implemented method, comprising:
requesting, by a first processor thread of a computer processor, access to exception tracking logic, the exception tracking logic being accessible by two or more processor threads; receiving, by the first processor thread, access to the exception tracking logic; executing, by the first processor thread, a process in slow mode; based on detecting an exception in slow mode, storing, by the first processor thread, exception information about the exception in the exception tracking logic; copying the exception information from the exception tracking logic to a set of external registers outside the exception tracking logic; and releasing the exception tracking logic to allow access to the exception tracking logic by other processor threads of the two or more processor threads.