Advanced Micro Devices, Inc.
Error reporting for non-volatile memory modules

Abstract:

A memory controller includes a command queue, a memory interface queue, and a non-volatile error reporting circuit. The command queue receives memory access commands including volatile reads, volatile writes, non-volatile reads, and non-volatile writes, and an output. The memory interface queue has an input coupled to the output of the command queue, and an output for coupling to a non-volatile storage class memory (SCM) module. The non-volatile error reporting circuit identifies error conditions associated with the non-volatile SCM module and maps the error conditions from a first number of possible error conditions associated with the non-volatile SCM module to a second, smaller number of virtual error types for reporting to an error monitoring module of a host operating system, the mapping based at least on a classification that the error condition will or will not have a deleterious effect on an executable process running on the host operating system.