1 files changed, 10 insertions, 0 deletions

diff --git a/arch/sparc64/Kconfig b/arch/sparc64/Kconfig
index af59daa81058..3c2e3397caf8 100644
--- a/arch/sparc64/Kconfig
+++ b/arch/sparc64/Kconfig
@@ -108,6 +108,15 @@ config SECCOMP
 
 source kernel/Kconfig.hz
 
+config HOTPLUG_CPU
+        bool "Support for hot-pluggable CPUs"
+        depends on SMP
+        select HOTPLUG
+        ---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.
+
 source "init/Kconfig"
 
 config SYSVIPC_COMPAT
@@ -307,6 +316,7 @@ config SUN_IO
 
 config SUN_LDOMS
         bool "Sun Logical Domains support"
+        select HOTPLUG_CPU
         help
           Say Y here is you want to support virtual devices via
           Logical Domains.