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| -rw-r--r-- | Documentation/acpi/apei/einj.txt | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/Documentation/acpi/apei/einj.txt b/Documentation/acpi/apei/einj.txt index e7cc36397217..e20b6daaced4 100644 --- a/Documentation/acpi/apei/einj.txt +++ b/Documentation/acpi/apei/einj.txt @@ -53,6 +53,14 @@ directory apei/einj. The following files are provided. This file is used to set the second error parameter value. Effect of parameter depends on error_type specified. +- notrigger + The EINJ mechanism is a two step process. First inject the error, then + perform some actions to trigger it. Setting "notrigger" to 1 skips the + trigger phase, which *may* allow the user to cause the error in some other + context by a simple access to the cpu, memory location, or device that is + the target of the error injection. Whether this actually works depends + on what operations the BIOS actually includes in the trigger phase. + BIOS versions based in the ACPI 4.0 specification have limited options to control where the errors are injected. Your BIOS may support an extension (enabled with the param_extension=1 module parameter, or |