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| author | Chen, Gong <gong.chen@linux.intel.com> | 2013-10-22 01:29:25 +0400 |
|---|---|---|
| committer | Tony Luck <tony.luck@intel.com> | 2013-10-23 21:09:07 +0400 |
| commit | 4b3db708b114fc35ff1e0cd28a2bfb1490dbb5d3 (patch) | |
| tree | 136ba42b08015d55861bfb103a6ec87f9dd5a54b /drivers/acpi/Kconfig | |
| parent | 10ef6b0dffe404bcc54e94cb2ca1a5b18445a66b (diff) | |
| download | linux-4b3db708b114fc35ff1e0cd28a2bfb1490dbb5d3.tar.xz | |
ACPI, x86: Extended error log driver for x86 platform
This H/W error log driver (a.k.a eMCA driver) is implemented based on
http://www.intel.com/content/www/us/en/architecture-and-technology/enhanced-mca-logging-xeon-paper.html
After errors are captured, more detailed platform specific information
can be got via this new enhanced H/W error log driver. Most notably we
can track memory errors back to the DIMM slot silk screen label.
Signed-off-by: Chen, Gong <gong.chen@linux.intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'drivers/acpi/Kconfig')
| -rw-r--r-- | drivers/acpi/Kconfig | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig index 6efe2ac6902f..252f0e818a49 100644 --- a/drivers/acpi/Kconfig +++ b/drivers/acpi/Kconfig @@ -372,4 +372,23 @@ config ACPI_BGRT source "drivers/acpi/apei/Kconfig" +config ACPI_EXTLOG + tristate "Extended Error Log support" + depends on X86_MCE && ACPI_APEI + default n + help + Certain usages such as Predictive Failure Analysis (PFA) require + more information about the error than what can be described in + processor machine check banks. Most server processors log + additional information about the error in processor uncore + registers. Since the addresses and layout of these registers vary + widely from one processor to another, system software cannot + readily make use of them. To complicate matters further, some of + the additional error information cannot be constructed without + detailed knowledge about platform topology. + + Enhanced MCA Logging allows firmware to provide additional error + information to system software, synchronous with MCE or CMCI. This + driver adds support for that functionality. + endif # ACPI |