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authorJohn W. Linville <linville@tuxdriver.com>2012-04-12 13:49:28 -0400
committerJohn W. Linville <linville@tuxdriver.com>2012-04-12 13:49:28 -0400
commit8065248069097dddf9945acfb2081025e9618c16 (patch)
treeeddf3fb0372ba0f65c01382d386942ea8d18932d /Documentation/acpi
parente66a8ddff72e85605f2212a0ebc666c7e9116641 (diff)
parentb4838d12e1f3cb48c2489a0b08733b5dbf848297 (diff)
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Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless
Diffstat (limited to 'Documentation/acpi')
-rw-r--r--Documentation/acpi/apei/einj.txt8
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