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Commit ace3647a authored by Chen Gong's avatar Chen Gong Committed by Tony Luck
Browse files

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: default avatarChen Gong <gong.chen@linux.intel.com>
Signed-off-by: default avatarTony Luck <tony.luck@intel.com>
parent c5a13032

Documentation/acpi/apei/einj.txt

+7 −2
Original line number Diff line number Diff line
@@ -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