d334a49113
Generic Hardware Error Source provides a way to report platform hardware errors (such as that from chipset). It works in so called "Firmware First" mode, that is, hardware errors are reported to firmware firstly, then reported to Linux by firmware. This way, some non-standard hardware error registers or non-standard hardware link can be checked by firmware to produce more valuable hardware error information for Linux. Now, only SCI notification type and memory errors are supported. More notification type and hardware error type will be added later. These memory errors are reported to user space through /dev/mcelog via faking a corrected Machine Check, so that the error memory page can be offlined by /sbin/mcelog if the error count for one page is beyond the threshold. On some machines, Machine Check can not report physical address for some corrected memory errors, but GHES can do that. So this simplified GHES is implemented firstly. Signed-off-by: Huang Ying <ying.huang@intel.com> Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
31 lines
1.1 KiB
Plaintext
31 lines
1.1 KiB
Plaintext
config ACPI_APEI
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bool "ACPI Platform Error Interface (APEI)"
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depends on X86
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help
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APEI allows to report errors (for example from the chipset)
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to the operating system. This improves NMI handling
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especially. In addition it supports error serialization and
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error injection.
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config ACPI_APEI_GHES
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tristate "APEI Generic Hardware Error Source"
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depends on ACPI_APEI && X86
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select ACPI_HED
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help
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Generic Hardware Error Source provides a way to report
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platform hardware errors (such as that from chipset). It
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works in so called "Firmware First" mode, that is, hardware
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errors are reported to firmware firstly, then reported to
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Linux by firmware. This way, some non-standard hardware
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error registers or non-standard hardware link can be checked
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by firmware to produce more valuable hardware error
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information for Linux.
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config ACPI_APEI_EINJ
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tristate "APEI Error INJection (EINJ)"
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depends on ACPI_APEI && DEBUG_FS
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help
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EINJ provides a hardware error injection mechanism, it is
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mainly used for debugging and testing the other parts of
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APEI and some other RAS features.
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