Multi-port memory link expander to share data among hosts

A computing system comprising:

• a memory expander including a coherent device memory, a memory controller coupled to the coherent device memory, and a plurality of host paths coupled to the memory controller, wherein the memory controller is to initialize the coherent device memory as hot-pluggable memory;
• a plurality of host devices coupled to the memory expander, the plurality of host devices including a first host device having a set of executable program instructions, which when executed by the first host device, cause the first host device to:
• collect, by a basic input output system (BIOS), memory information from a first host path of the plurality of host paths to the coherent device memory,
• transfer the memory information from the BIOS to an operating system (OS) via one or more OS interface tables, and
• initialize, by the OS, the memory expander based on the memory information, wherein the memory information includes memory capabilities and configuration settings associated with the memory expander.

A memory expander comprising:

• a coherent device memory;
• a memory controller coupled to the coherent device memory;
• and
• a plurality of host paths coupled to the memory controller, wherein the memory controller is to initialize the coherent device memory as hot-pluggable memory.

At least one computer readable storage medium comprising a set of executable program instructions which, when executed by a host device, cause the host device to:

• collect, by a basic input output system (BIOS), memory information from a first host path to a coherent device memory on a memory expander, wherein the memory expander includes a plurality of host paths;
• transfer the memory information from the BIOS to an operating system (OS) via one or more OS interface tables;
• and
• initialize, by the OS, the memory expander based on the memory information, wherein the memory information includes memory capabilities and configuration settings associated with the memory expander.

A method comprising:

• collecting, by a basic input output system (BIOS), memory information from a first host path to a coherent device memory on a memory expander, wherein the memory expander includes a plurality of host paths;
• transferring the memory information from the BIOS to an operating system (OS) via one or more OS interface tables;
• and
• initializing, by the OS, the memory expander based on the memory information, wherein the memory information includes memory capabilities and configuration settings associated with the memory expander.