powerpc/pseries: Add hooks to put the CPU into an appropriate offline state

[karo-tx-linux.git] / Documentation / cpu-hotplug.txt

diff --git a/Documentation/cpu-hotplug.txt b/Documentation/cpu-hotplug.txt
index 9d620c153b04f2469bf664e6489e3af6817663e2..4d4a644b505eeb42cb5acae0b69f162c3f053a4d 100644 (file)
--- a/Documentation/cpu-hotplug.txt
+++ b/Documentation/cpu-hotplug.txt
@@ -49,6 +49,12 @@ maxcpus=n    Restrict boot time cpus to n. Say if you have 4 cpus, using
 additional_cpus=n (*)  Use this to limit hotpluggable cpus. This option sets
                        cpu_possible_map = cpu_present_map + additional_cpus
 
+cede_offline={"off","on"}  Use this option to disable/enable putting offlined
+                           processors to an extended H_CEDE state on
+                           supported pseries platforms.
+                           If nothing is specified,
+                           cede_offline is set to "on".
+
 (*) Option valid only for following architectures
 - ia64