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ACPI, APEI, EINJ injection parameters support

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Some hardware error injection needs parameters, for example, it is
useful to specify memory address and memory address mask for memory
errors.

Some BIOSes allow parameters to be specified via an unpublished
extension. This patch adds support to it. The parameters will be
ignored on machines without necessary BIOS support.

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>
This commit is contained in:
Huang Ying
2010-05-18 14:35:24 +08:00
committed by Len Brown
parent 15b0beaa33
commit 6e320ec1d9
2 changed files with 77 additions and 5 deletions
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Documentation/acpi/apei/einj.txt
+10
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@@ -45,5 +45,15 @@ directory apei/einj. The following files are provided.
injection. Before this, please specify all necessary error
parameters.
- param1
This file is used to set the first error parameter value. Effect of
parameter depends on error_type specified. For memory error, this is
physical memory address.
- param2
This file is used to set the second error parameter value. Effect of
parameter depends on error_type specified. For memory error, this is
physical memory address mask.
For more information about EINJ, please refer to ACPI specification
version 4.0, section 17.5.