diff --git a/Kconfig b/Kconfig
index bdae59e..8bbb988 100644
--- a/Kconfig
+++ b/Kconfig
@@ -319,6 +319,16 @@
 	  it can be handled accurately by Valgrind. If you aren't planning on
 	  using valgrind to debug U-Boot, say 'n'.
 
+config VPL_SYS_MALLOC_F_LEN
+	hex "Size of malloc() pool in VPL before relocation"
+	depends on SYS_MALLOC_F && VPL
+	default SYS_MALLOC_F_LEN
+	help
+	  Before relocation, memory is very limited on many platforms. Still,
+	  we can provide a small malloc() pool if needed. Driver model in
+	  particular needs this to operate, so that it can allocate the
+	  initial serial device and any others that are needed.
+
 menuconfig EXPERT
 	bool "Configure standard U-Boot features (expert users)"
 	default y