Direct memory addresses for address swapping between inline memory modules

A memory device comprising:

• first circuitry to couple the memory device to a host while a first dual inline memory module (DIMM) comprises the memory device, and while the host is further coupled to a second DIMM, wherein the host is to comprise a processor and a controller circuit;
• second circuitry to communicate to the controller circuit a signal indicating a condition wherein a metric of accesses to a first page of the first DIMM is outside of a range, wherein the accesses are based on information which associates virtual addresses each with a respective physical address, wherein the first page corresponds to a first physical address, wherein responsive to the signal, the controller circuit is to:
• disable a functionality of the processor core which supports a class of transactions that access the first page;
• and
• perform a direct memory access to migrate data of the first page to a second page of the second DIMM, the second page corresponding to a second physical address;
• and
• update the information to replace a first correspondence of a virtual address to the first physical address with a second correspondence of the virtual address to the second physical address.

A system comprising:

• a memory sub-system comprising a first dual inline memory module (DIMM) and a second DIMM;
• a processor comprising a core;
• a controller circuit coupled to each of the processor, the first DIMM and the second DIMM, the controller circuit comprising:
• first circuitry to detect a condition wherein a metric of accesses to a first page of the first DIMM is outside of a range, wherein the accesses are based on information which associates virtual addresses each with a respective physical address, wherein the first page corresponds to a first physical address;
• second circuitry, responsive to the first circuitry, to:
• perform a direct memory access to migrate data of the first page to a second page of the second DIMM;
• and
• update the information to replace a first correspondence of a virtual address to the first physical address with a second correspondence of the virtual address to a second physical address which corresponds to the second page;
• and
• a display device coupled to the processor, the display device to display an image based on the data.