• Huang Ying's avatar
    ACPI, APEI, Generic Hardware Error Source memory error support · d334a491
    Huang Ying authored
    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: default avatarHuang Ying <ying.huang@intel.com>
    Signed-off-by: default avatarAndi Kleen <ak@linux.intel.com>
    Signed-off-by: default avatarLen Brown <len.brown@intel.com>
    d334a491
Makefile 150 Bytes