diff --git a/arch/powerpc/platforms/pseries/hotplug-memory.c b/arch/powerpc/platforms/pseries/hotplug-memory.c
index 36f66556a7c6..28a7fd90232f 100644
--- a/arch/powerpc/platforms/pseries/hotplug-memory.c
+++ b/arch/powerpc/platforms/pseries/hotplug-memory.c
@@ -683,6 +683,9 @@ static int dlpar_memory_add_by_count(u32 lmbs_to_add)
 
 	/* Validate that there are enough LMBs to satisfy the request */
 	for_each_drmem_lmb(lmb) {
+		if (lmb->flags & DRCONF_MEM_RESERVED)
+			continue;
+
 		if (!(lmb->flags & DRCONF_MEM_ASSIGNED))
 			lmbs_available++;