diff options
Diffstat (limited to 'drivers/nvdimm/Kconfig')
| -rw-r--r-- | drivers/nvdimm/Kconfig | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/drivers/nvdimm/Kconfig b/drivers/nvdimm/Kconfig index 77b06d54cc62..44ab929a1ad5 100644 --- a/drivers/nvdimm/Kconfig +++ b/drivers/nvdimm/Kconfig @@ -24,7 +24,7 @@ config BLK_DEV_PMEM select ND_PFN if NVDIMM_PFN help Memory ranges for PMEM are described by either an NFIT - (NVDIMM Firmware Interface Table, see CONFIG_NFIT_ACPI), a + (NVDIMM Firmware Interface Table, see CONFIG_ACPI_NFIT), a non-standard OEM-specific E820 memory type (type-12, see CONFIG_X86_PMEM_LEGACY), or it is manually specified by the 'memmap=nn[KMG]!ss[KMG]' kernel command line (see @@ -97,6 +97,25 @@ config OF_PMEM Select Y if unsure. +config RAMDAX + tristate "Support persistent memory interfaces on RAM carveouts" + depends on X86_PMEM_LEGACY || OF || COMPILE_TEST + default LIBNVDIMM + help + Allows creation of DAX devices on RAM carveouts. + + Memory ranges that are manually specified by the + 'memmap=nn[KMG]!ss[KMG]' kernel command line or defined by dummy + pmem-region device tree nodes would be managed by this driver as DIMM + devices with support for dynamic layout of namespaces. + The driver steals 128K in the end of the memmap range for the + namespace management. This allows supporting up to 509 namespaces + (see 'ndctl create-namespace --help'). + The driver should be force bound to e820_pmem or pmem-region platform + devices using 'driver_override' device attribute. + + Select N if unsure. + config NVDIMM_KEYS def_bool y depends on ENCRYPTED_KEYS |