diff --git a/openpower/configs/linux/skiroot_defconfig b/openpower/configs/linux/skiroot_defconfig
index 114eb00..c85fd6a 100644
--- a/openpower/configs/linux/skiroot_defconfig
+++ b/openpower/configs/linux/skiroot_defconfig
@@ -236,3 +236,12 @@
 CONFIG_CRYPTO_ARC4=y
 CONFIG_CRYPTO_DES=y
 # CONFIG_CRYPTO_HW is not set
+CONFIG_SELECT_MEMORY_MODEL=y
+CONFIG_SPARSEMEM_MANUAL=y
+CONFIG_SPARSEMEM=y
+CONFIG_SPARSEMEM_EXTREME=y
+CONFIG_SPARSEMEM_VMEMMAP_ENABLE=y
+CONFIG_SPARSEMEM_VMEMMAP=y
+CONFIG_NUMA=y
+CONFIG_NEED_MULTIPLE_NODES=y
+CONFIG_HAVE_MEMORY_PRESENT=y