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| author | Chen Gong <gong.chen@linux.intel.com> | 2013-06-06 15:28:11 -0700 |
|---|---|---|
| committer | Tony Luck <tony.luck@intel.com> | 2013-06-06 15:28:11 -0700 |
| commit | ace3647afb3eca214f6da5d653ad116ff77545b6 (patch) | |
| tree | a583a82d2eec6bd044064ae9d02251a455e6af29 /Documentation/acpi | |
| parent | c5a130325f13b219438cb100e2da71a3e31199f3 (diff) | |
| download | lwn-ace3647afb3eca214f6da5d653ad116ff77545b6.tar.gz lwn-ace3647afb3eca214f6da5d653ad116ff77545b6.zip | |
ACPI/APEI: Update einj documentation for param1/param2
To ensure EINJ working well when injecting errors via EINJ
table, add some restrictions: param1 must be a valid physical
RAM address and param2 must specify page granularity or
narrower.
Signed-off-by: Chen Gong <gong.chen@linux.intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'Documentation/acpi')
| -rw-r--r-- | Documentation/acpi/apei/einj.txt | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/Documentation/acpi/apei/einj.txt b/Documentation/acpi/apei/einj.txt index e20b6daaced4..a58b63da1a36 100644 --- a/Documentation/acpi/apei/einj.txt +++ b/Documentation/acpi/apei/einj.txt @@ -47,11 +47,16 @@ directory apei/einj. The following files are provided. - param1 This file is used to set the first error parameter value. Effect of - parameter depends on error_type specified. + parameter depends on error_type specified. For example, if error + type is memory related type, the param1 should be a valid physical + memory address. - param2 This file is used to set the second error parameter value. Effect of - parameter depends on error_type specified. + parameter depends on error_type specified. For example, if error + type is memory related type, the param2 should be a physical memory + address mask. Linux requires page or narrower granularity, say, + 0xfffffffffffff000. - notrigger The EINJ mechanism is a two step process. First inject the error, then |