Recovery mechanism for L1 data cache parity errors

摘要

A method of handling a cache error (such as a parity error), which allows a software recovery, by reporting the error using an unrelated system resource, such as an interrupt service, and particularly a data storage interrupt. The parity error can be reported by generating a data storage interrupt and using the data storage interrupt status register (DSISR) to indicate that the data storage interrupt is a result of the parity error. The context of the processor can be fully synchronized while handling the parity error.