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Diffstat (limited to 'drivers/ras/Kconfig')
| -rw-r--r-- | drivers/ras/Kconfig | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/drivers/ras/Kconfig b/drivers/ras/Kconfig new file mode 100644 index 000000000000..fc4f4bb94a4c --- /dev/null +++ b/drivers/ras/Kconfig @@ -0,0 +1,49 @@ +# SPDX-License-Identifier: GPL-2.0-only +menuconfig RAS + bool "Reliability, Availability and Serviceability (RAS) features" + help + Reliability, availability and serviceability (RAS) is a computer + hardware engineering term. Computers designed with higher levels + of RAS have a multitude of features that protect data integrity + and help them stay available for long periods of time without + failure. + + Reliability can be defined as the probability that the system will + produce correct outputs up to some given time. Reliability is + enhanced by features that help to avoid, detect and repair hardware + faults. + + Availability is the probability a system is operational at a given + time, i.e. the amount of time a device is actually operating as the + percentage of total time it should be operating. + + Serviceability or maintainability is the simplicity and speed with + which a system can be repaired or maintained; if the time to repair + a failed system increases, then availability will decrease. + + Note that Reliability and Availability are distinct concepts: + Reliability is a measure of the ability of a system to function + correctly, including avoiding data corruption, whereas Availability + measures how often it is available for use, even though it may not + be functioning correctly. For example, a server may run forever and + so have ideal availability, but may be unreliable, with frequent + data corruption. + +if RAS + +source "arch/x86/ras/Kconfig" +source "drivers/ras/amd/atl/Kconfig" + +config RAS_FMPM + tristate "FRU Memory Poison Manager" + default m + depends on AMD_ATL && ACPI_APEI + help + Support saving and restoring memory error information across reboot + using ACPI ERST as persistent storage. Error information is saved with + the UEFI CPER "FRU Memory Poison" section format. + + Memory will be retired during boot time and run time depending on + platform-specific policies. + +endif |
