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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 Original line Diff line number Diff line
@@ -47,11 +47,16 @@ directory apei/einj. The following files are provided. 




- param1

- param1

  This file is used to set the first error parameter value. Effect of

  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

- param2

  This file is used to set the second error parameter value. Effect of

  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

- notrigger

  The EINJ mechanism is a two step process. First inject the error, then

  The EINJ mechanism is a two step process. First inject the error, then