Hi, Randy, On Wed, 2010-05-19 at 05:51 +0800, Randy Dunlap wrote: > Huang Ying wrote: > > Add document for APEI, including kernel parameters and EINJ debug file > > sytem interface. > > > > Signed-off-by: Huang Ying <ying.huang@xxxxxxxxx> > > Signed-off-by: Andi Kleen <ak@xxxxxxxxxxxxxxx> > > --- > > 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 Thanks, will fix theses. Sorry for my poor English. Best Regards, Huang Ying -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
