Enable CXL Memory Repair
configname: CONFIG_CXL_EDAC_MEM_REPAIR
Linux Kernel Configuration
└─>Device Drivers
└─>CXL (Compute Express Link) Devices Support
└─>Enable CXL Memory Repair
In linux kernel since version 5.4.297 (release Date: 2025-08-28)
The CXL EDAC memory repair control is optional and allows host
to control the memory repair features (e.g. sparing, PPR)
configurations of CXL memory expander devices.
When enabled, the memory repair feature requires an additional
memory of approximately 43KB to store CXL DRAM and CXL general
media event records.
When enabled 'cxl_mem' EDAC devices are published with memory
repair control attributes as described by
Documentation/ABI/testing/sysfs-edac-memory-repair.
Say 'y' if you have an expert need to change default settings
of a memory repair feature established by the platform/device.
Otherwise say 'n'.
to control the memory repair features (e.g. sparing, PPR)
configurations of CXL memory expander devices.
When enabled, the memory repair feature requires an additional
memory of approximately 43KB to store CXL DRAM and CXL general
media event records.
When enabled 'cxl_mem' EDAC devices are published with memory
repair control attributes as described by
Documentation/ABI/testing/sysfs-edac-memory-repair.
Say 'y' if you have an expert need to change default settings
of a memory repair feature established by the platform/device.
Otherwise say 'n'.