ACPI Table Reference
The Following ACPI tables contain static configuration and performance data about CXL devices.
CEDT : CXL Early Detection Table
SRAT : Static / System Resource Attribute Table
HMAT : Heterogeneous Memory Attribute Table
SLIT : System Locality Information Table
The SRAT table may also contain generic port/initiator content that is intended to describe the generic port, but not information about the rest of the path to the endpoint.
Linux uses these tables to configure kernel resources for statically configured (by BIOS/EFI) CXL devices, such as:
NUMA nodes
Memory Tiers
NUMA Abstract Distances
SystemRAM Memory Regions
Weighted Interleave Node Weights