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-rw-r--r--arch/x86_64/Kconfig4
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/x86_64/Kconfig b/arch/x86_64/Kconfig
index 32ae1378f35c..b87a19f0d584 100644
--- a/arch/x86_64/Kconfig
+++ b/arch/x86_64/Kconfig
@@ -367,6 +367,10 @@ config ARCH_FLATMEM_ENABLE
source "mm/Kconfig"
+config MEMORY_HOTPLUG_RESERVE
+ def_bool y
+ depends on (MEMORY_HOTPLUG && DISCONTIGMEM)
+
config HAVE_ARCH_EARLY_PFN_TO_NID
def_bool y
depends on NUMA