CONFIG_X86_PMEM_LEGACY: Support non-standard NVDIMMs and ADR protected memory

General informations

The Linux kernel configuration item CONFIG_X86_PMEM_LEGACY has multiple definitions:

Support non-standard NVDIMMs and ADR protected memory found in arch/x86/Kconfig

The configuration item CONFIG_X86_PMEM_LEGACY:

• prompt: Support non-standard NVDIMMs and ADR protected memory
• type: tristate
• depends on: ( CONFIG_PHYS_ADDR_T_64BIT ) && ( CONFIG_BLK_DEV )
• defined in arch/x86/Kconfig
• found in Linux kernels: 4.3–4.20, 5.0–5.19, 6.0–6.12
• modules built: nd_e820

Help text

Treat memory marked using the non-standard e820 type of 12 as used by the Intel Sandy Bridge-EP reference BIOS as protected memory. The kernel will offer these regions to the 'pmem' driver so they can be used for persistent storage.

Say Y if unsure.

Support non-standard NVDIMMs and ADR protected memory found in arch/x86/Kconfig

The configuration item CONFIG_X86_PMEM_LEGACY:

• prompt: Support non-standard NVDIMMs and ADR protected memory
• type: bool
• depends on: ( CONFIG_PHYS_ADDR_T_64BIT ) && ( CONFIG_BLK_DEV )
• defined in arch/x86/Kconfig
• found in Linux kernels: 4.1–4.2
• modules built: nd_e820

Help text

Treat memory marked using the non-standard e820 type of 12 as used by the Intel Sandy Bridge-EP reference BIOS as protected memory. The kernel will offer these regions to the 'pmem' driver so they can be used for persistent storage.

Say Y if unsure.

Hardware

LKDDb

Raw data from LKDDb:

• lkddb module nd_e820 CONFIG_X86_PMEM_LEGACY : arch/x86/Kconfig : "Support non-standard NVDIMMs and ADR protected memory" # in 4.3–4.20, 5.0–5.19, 6.0–6.12
• lkddb platform "e820_pmem" : CONFIG_LIBNVDIMM CONFIG_X86_PMEM_LEGACY : drivers/nvdimm/e820.c # in 4.3–4.20, 5.0–5.19, 6.0–6.12

Sources

This page is automaticly generated with free (libre, open) software lkddb(see lkddb-sources).

The data is retrived from:

• Linux kernel
• Linux Kernel Driver DataBase (LKDDb)

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