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linux-yocto/drivers/ras/Kconfig
Thomas Gleixner ec8f24b7fa treewide: Add SPDX license identifier - Makefile/Kconfig 
Add SPDX license identifiers to all Make/Kconfig files which:

 - Have no license information of any form

These files fall under the project license, GPL v2 only. The resulting SPDX
license identifier is:

  GPL-2.0-only

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-21 10:50:46 +02:00

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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"

endif