diff --git a/boards/kernel-configs/n900.config b/boards/kernel-configs/n900.config
index a7f5189..04859bf 100644
--- a/boards/kernel-configs/n900.config
+++ b/boards/kernel-configs/n900.config
@@ -580,7 +580,9 @@ CONFIG_NEED_PER_CPU_KM=y
 # CONFIG_CMA is not set
 # CONFIG_ZPOOL is not set
 # CONFIG_ZBUD is not set
-# CONFIG_ZSMALLOC is not set
+CONFIG_ZSMALLOC=m
+# CONFIG_PGTABLE_MAPPING is not set
+# CONFIG_ZSMALLOC_STAT is not set
 CONFIG_GENERIC_EARLY_IOREMAP=y
 # CONFIG_IDLE_PAGE_TRACKING is not set
 CONFIG_FRAME_VECTOR=y
@@ -1331,6 +1333,7 @@ CONFIG_ARCH_MIGHT_HAVE_PC_PARPORT=y
 # CONFIG_PARPORT is not set
 CONFIG_BLK_DEV=y
 # CONFIG_BLK_DEV_NULL_BLK is not set
+CONFIG_ZRAM=m
 # CONFIG_BLK_DEV_COW_COMMON is not set
 CONFIG_BLK_DEV_LOOP=m
 CONFIG_BLK_DEV_LOOP_MIN_COUNT=8
@@ -4745,7 +4748,4 @@ CONFIG_SG_SPLIT=y
 CONFIG_SG_POOL=y
 CONFIG_ARCH_HAS_SG_CHAIN=y
 CONFIG_SBITMAP=y
-CONFIG_VIRTUALIZATION=y
-CONFIG_VHOST_NET=m
-CONFIG_VHOST=m
-# CONFIG_VHOST_CROSS_ENDIAN_LEGACY is not set
+# CONFIG_VIRTUALIZATION is not set