Method and apparatus for storing memory attributes

A method, comprising:

• assigning a respective attribute group identifier (AGI) to respective regions of the plurality of regions to associate each respective region with a respective memory region group, wherein regions assigned a same AGI belong to a same memory region group, wherein each region of a first plurality of the regions is assigned a first AGI for a first memory region group, and each region of a second plurality of the regions is assigned a second AGI for a second memory region group;
• storing a group attribute table comprising a respective entry for each different AGI, wherein individual entries store a respective set of indicators of one or more respective memory attributes to be applied to regions to which the AGI for that entry is assigned;
• and
• responsive to a request to modify at least one of the one or more memory attributes associated with the first AGI, modifying, in the entry of the first AGI, those indicators that correspond to the requested modifications, which causes modification of corresponding ones of the memory attributes for the first plurality of the regions.

A processor, comprising:

• circuitry configured to perform memory management including performance of memory operations to respective regions of a plurality of regions of a system memory for memory access instructions executed by the processor;
• wherein the processor is configured to:
• assign a respective attribute group identifier (AGI) for each respective region of the plurality of regions to associate each respective region with a respective memory region group, wherein regions assigned a same AGI belong to a same memory region group, wherein each region of a first plurality of the regions is assigned a first AGI for a first memory region group, and each region of a second plurality of the regions is assigned a second AGI for a second memory region group;
• store a group attribute table comprising a respective entry for each different AGI, wherein individual respective entries store a respective set of indicators of one or more respective memory attributes to be applied to regions to which the AGI for that entry is assigned;
• and
• responsive to a request to modify at least one of the one or more memory attributes associated with the first AGI, modify, in the entry of the first AGI, those indicators that correspond to the requested modifications, which causes modification of corresponding ones of the memory attributes for the first plurality of the regions.