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-rw-r--r--Documentation/ABI/testing/sysfs-devices-system-cpu12
1 files changed, 12 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-devices-system-cpu b/Documentation/ABI/testing/sysfs-devices-system-cpu
index 9c978dcae07..2447698aed4 100644
--- a/Documentation/ABI/testing/sysfs-devices-system-cpu
+++ b/Documentation/ABI/testing/sysfs-devices-system-cpu
@@ -173,3 +173,15 @@ Description: Processor frequency boosting control
Boosting allows the CPU and the firmware to run at a frequency
beyound it's nominal limit.
More details can be found in Documentation/cpu-freq/boost.txt
+
+
+What: /sys/devices/system/cpu/cpu#/crash_notes
+ /sys/devices/system/cpu/cpu#/crash_notes_size
+Date: April 2013
+Contact: kexec@lists.infradead.org
+Description: address and size of the percpu note.
+
+ crash_notes: the physical address of the memory that holds the
+ note of cpu#.
+
+ crash_notes_size: size of the note of cpu#.