lkml.org 
[lkml]   [2010]   [May]   [18]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: [PATCH -v5 05/14] ACPI, APEI, Document for APEI
    Huang Ying wrote:
    > Add document for APEI, including kernel parameters and EINJ debug file
    > sytem interface.
    >
    > Signed-off-by: Huang Ying <ying.huang@intel.com>
    > Signed-off-by: Andi Kleen <ak@linux.intel.com>
    > ---
    > Documentation/acpi/apei/einj.txt | 49 ++++++++++++++++++++++++++++++++++++
    > Documentation/kernel-parameters.txt | 5 +++
    > 2 files changed, 54 insertions(+)
    > create mode 100644 Documentation/acpi/apei/einj.txt
    >
    > --- /dev/null
    > +++ b/Documentation/acpi/apei/einj.txt
    > @@ -0,0 +1,49 @@
    > + APEI Error INJection
    > + ~~~~~~~~~~~~~~~~~~~~
    > +
    > +EINJ provides a hardware error injection mechanism, it is very useful

    ; [or . + new sentence]

    > +for debugging and testing of other APEI and RAS features.
    > +
    > +To use EINJ, make the following is enabled in your kernel

    make sure the following are enabled

    > +configuration:
    > +
    > +CONFIG_DEBUG_FS
    > +CONFIG_ACPI_APEI
    > +CONFIG_ACPI_APEI_EINJ
    > +
    > +The user interface of EINJ is in debug file system, under the

    is the debug file system,
    [or "is in the debug file system"]

    > +directory apei/einj. The following files are provided.
    > +
    > +- available_error_type
    > + Read this file will return the error injection capability of the

    Reading this file returns ...

    > + platform, that is, which error types are supported. The error type
    > + definition is as follow, the left field is the error type value, the
    > + right field is error description.
    > +
    > + 0x00000001 Processor Correctable
    > + 0x00000002 Processor Uncorrectable non-fatal
    > + 0x00000004 Processor Uncorrectable fatal
    > + 0x00000008 Memory Correctable
    > + 0x00000010 Memory Uncorrectable non-fatal
    > + 0x00000020 Memory Uncorrectable fatal
    > + 0x00000040 PCI Express Correctable
    > + 0x00000080 PCI Express Uncorrectable fatal
    > + 0x00000100 PCI Express Uncorrectable non-fatal
    > + 0x00000200 Platform Correctable
    > + 0x00000400 Platform Uncorrectable non-fatal
    > + 0x00000800 Platform Uncorrectable fatal
    > +
    > + The format of file contents are as above, except there are only the
    > + available error type lines.
    > +
    > +- error_type
    > + This file is used to set the error type value. The error type value
    > + is defined in "available_error_type" description.
    > +
    > +- error_inject
    > + Write any integer to this file to trigger the error
    > + injection. Before this, please specify all necessary error
    > + parameters.
    > +
    > +For more information about EINJ, please refer to ACPI specification
    > +version 4.0, section 17.5.
    > --- a/Documentation/kernel-parameters.txt
    > +++ b/Documentation/kernel-parameters.txt
    > @@ -843,6 +843,11 @@ and is between 256 and 4096 characters.
    > hd= [EIDE] (E)IDE hard drive subsystem geometry
    > Format: <cyl>,<head>,<sect>
    >
    > + hest_disable [ACPI]
    > + Disable Hardware Error Source Table (HEST) support,

    s/,/;/

    > + corresponding firmware-first mode error processing
    > + logic will be disabled.
    > +
    > highmem=nn[KMG] [KNL,BOOT] forces the highmem zone to have an exact
    > size of <nn>. This works even on boxes that have no
    > highmem otherwise. This also works to reduce highmem
    > --



    \
     
     \ /
      Last update: 2010-05-18 23:55    [W:0.028 / U:183.192 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site