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CONFIG_CXL_ACPI: CXL ACPI: Platform Support

General informations

The Linux kernel configuration item CONFIG_CXL_ACPI:

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Enable support for host managed device memory (HDM) resources published by a platform's ACPI CXL memory layout description. See Chapter 9.14.1 CXL Early Discovery Table (CEDT) in the CXL 2.0 specification, and CXL Fixed Memory Window Structures (CEDT.CFMWS) (https://www.computeexpresslink.org/spec-landing). The CXL core consumes these resource to publish the root of a cxl_port decode hierarchy to map regions that represent System RAM, or Persistent Memory regions to be managed by LIBNVDIMM.

If unsure say 'm'.

Hardware

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