Distributed address translation in a multi-node interconnect fabric

A multiprocessor system, configured to:

• export, by a destination node executing a process associated with an affiliation identifier, a first virtual address range into a first fabric linear address (FLA) range within a FLA space for sharing data residing in one or more local system physical memory pages within the destination, wherein the exporting is initiated by the process and the first FLA range is mapped by the destination node to one or more local system physical memory pages comprising a local system physical address (SPA) space for a memory subsystem within the destination node;
• configure, by a source node executing at least one other process that is associated with the affiliation identifier, one or more page table entries within a local translation lookaside buffer (TLB) to map a second virtual address range for the source node to the first FLA range, wherein the second virtual address range is mapped by one TLB entry with a size that is larger than a physical page size at the destination node;
• generate, by the source node, a memory access request comprising a virtual address (VA) within the second virtual address range that targets the data;
• map, by the source node, the VA to a corresponding FLA within the first FLA range that targets the data;
• compose, by the source node, a remote access request that includes the FLA;
• transmit, by the source node, the remote access request to the destination node;
• map, by a second TLB within the destination node, the FLA to a corresponding guest physical address (GPA) that targets the data;
• and
• map, by the destination node, the GPA to a corresponding SPA that targets the data within the local SPA space.

A non-transitory, computer-readable storage medium storing instructions that, when executed by a multiprocessor system, cause the multiprocessor system to:

• export, by a destination node executing a process associated with an affiliation identifier, a first virtual address range into a first fabric linear address (FLA) range within a FLA space for sharing data residing in one or more local system physical memory pages within the destination, wherein the exporting is initiated by the process and the first FLA range is mapped by the destination node to one or more local system physical memory pages comprising a local system physical address (SPA) space for a memory subsystem within the destination node;
• configure, by a source node executing at least one other process that is associated with the affiliation identifier, one or more page table entries within a local translation lookaside buffer (TLB) to map a second virtual address range for the source node to the first FLA range, wherein the second virtual address range is mapped by one TLB entry with a size that is larger than a physical page size at the destination node;
• generate, by the source node, a memory access request comprising a virtual address (VA) within the second virtual address range that targets the data;
• map, by the source node, the VA to a corresponding FLA within the first FLA range that targets the data;
• compose, by the source node, a remote access request that includes the FLA;
• transmit, by the source node, the remote access request to the destination node;
• map, by the destination node, the FLA to a corresponding guest physical address (GPA) that targets the data;
• and
• map, by a second TLB within the destination node, the GPA to a corresponding SPA that targets the data within the local SPA space.

A method, comprising:

• exporting, by a destination node executing a process associated with an affiliation identifier, a first virtual address range into a fabric linear address (FLA) range within a FLA space for sharing data residing in one or more local system physical memory pages within the destination, wherein the exporting is initiated by the process and the first FLA range is mapped by the destination node to one or more local system physical memory pages comprising a local system physical address (SPA) space for a memory subsystem within the destination node;
• configuring, by a source node executing at least one other process that is associated with the affiliation identifier, one or more page table entries within a local translation lookaside buffer (TLB) to map a second virtual address range for the source node to the first FLA range, wherein the second virtual address range is mapped by one TLB entry with a size that is larger than a physical page size at the destination node;
• generating, by the source node, a memory access request comprising a virtual address (VA) within the second virtual address range that targets the data;
• mapping, by the source node, the VA to a corresponding FLA within the first FLA range that targets the data;
• composing, by the source node, a remote access request that includes the FLA;
• transmitting, by the source node, the remote access request to the destination node;
• and
• mapping, by a second TLB within the destination node, the FLA to a corresponding SPA that targets the data within the local SPA space.