Physical memory fault mitigation in a computing environment

A computer system for managing memory of a computing environment, said computer system comprising:

• a memory;
• and
• a processor in communications with the memory, wherein the computer system is configured to perform a method, said method comprising:
• obtaining, by a controller executing on a processor of the computing environment, memory structure information to be used in allocating memory to a plurality of processing entities of the computing environment, the memory structure information comprising:
• information relating to a plurality of address ranges provided based on memory structure and based on one or more types of potential physical memory failures corresponding to the memory structure, and
• an indication of one or more physical affinity zones of the memory, wherein each of the one or more physical affinity zones spans more than one physical memory channel and represents a smallest area of contiguous virtual address space in the memory that maps to a fault isolatable section of physical memory;
• and
• assigning, by the controller, based on at least a portion of the memory structure information, at least one address range of the plurality of address ranges to at least one processing entity of the plurality of processing entities, the assigning reducing an effect of a memory fault on the computing environment, wherein based on the allocating the memory fault is limited to a subset of processing entities of the plurality of processing entities, and wherein the memory fault is isolatable to a contiguous virtual address space.

A computer program product for managing memory of a computing environment, said computer program product comprising:

• a computer readable storage medium readable by a processing circuit and storing instructions for execution by the processing circuit for performing a method comprising:
• obtaining, by a controller executing on a processor of the computing environment, memory structure information to be used in allocating memory to a plurality of processing entities of the computing environment, the memory structure information comprising:
• information relating to a plurality of address ranges provided based on memory structure and based on one or more types of potential physical memory failures corresponding to the memory structure, and
• an indication of one or more physical affinity zones of the memory, wherein each of the one or more physical affinity zones spans more than one physical memory channel and represents a smallest area of contiguous virtual address space in the memory that maps to a fault isolatable section of physical memory;
• and
• assigning, by the controller, based on at least a portion of the memory structure information, at least one address range of the plurality of address ranges to at least one processing entity of the plurality of processing entities, the assigning reducing an effect of a memory fault on the computing environment, wherein based on the allocating the memory fault is limited to a subset of processing entities of the plurality of processing entities, and wherein the memory fault is isolatable to a contiguous virtual address space.