1 files changed, 9 insertions, 0 deletions

diff --git a/arch/x86_64/Kconfig b/arch/x86_64/Kconfig
index db259757dc8a..92f5a5266023 100644
--- a/arch/x86_64/Kconfig
+++ b/arch/x86_64/Kconfig
@@ -313,6 +313,15 @@ config NR_CPUS
           This is purely to save memory - each supported CPU requires
           memory in the static kernel configuration.
 
+config HOTPLUG_CPU
+        bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
+        depends on SMP && HOTPLUG && EXPERIMENTAL
+        help
+                Say Y here to experiment with turning CPUs off and on.  CPUs
+                can be controlled through /sys/devices/system/cpu/cpu#.
+                Say N if you want to disable CPU hotplug.
+
+
 config HPET_TIMER
         bool
         default y