x86: add memory hotremove config option

Impact: enable CONFIG_MEMORY_HOTREMOVE feature on x86. (default-off)

Memory hotremove functionality can currently be configured into
the ia64, powerpc, and s390 kernels.

This patch makes it possible to configure the memory hotremove
functionality into the x86 kernel as well.

Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com>
Signed-off-by: Gary Hade <garyhade@us.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 4 insertions, 0 deletions

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index c00aefcb47d..25e71152611 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -1492,6 +1492,10 @@ config ARCH_ENABLE_MEMORY_HOTPLUG
         def_bool y
         depends on X86_64 || (X86_32 && HIGHMEM)
 
+config ARCH_ENABLE_MEMORY_HOTREMOVE
+        def_bool y
+        depends on MEMORY_HOTPLUG
+
 config HAVE_ARCH_EARLY_PFN_TO_NID
         def_bool X86_64
         depends on NUMA