4 files changed, 19 insertions, 0 deletions
diff --git a/src/config/defaults/efi.h b/src/config/defaults/efi.h
index 693f55ad9..c0bb78da9 100644
--- a/src/config/defaults/efi.h
+++ b/src/config/defaults/efi.h
@@ -17,6 +17,7 @@
 #define SMBIOS_EFI
 #define SANBOOT_NULL
 #define BOFM_EFI
+#define ENTROPY_NULL
 
 #define	IMAGE_EFI		/* EFI image support */
 #define	IMAGE_SCRIPT		/* iPXE script image support */
diff --git a/src/config/defaults/linux.h b/src/config/defaults/linux.h
index 647dc0a53..6b24da480 100644
--- a/src/config/defaults/linux.h
+++ b/src/config/defaults/linux.h
@@ -14,6 +14,7 @@
 #define NAP_LINUX
 #define SMBIOS_LINUX
 #define SANBOOT_NULL
+#define ENTROPY_NULL
 
 #define DRIVERS_LINUX
 
diff --git a/src/config/defaults/pcbios.h b/src/config/defaults/pcbios.h
index 59adbf785..fb44d0e16 100644
--- a/src/config/defaults/pcbios.h
+++ b/src/config/defaults/pcbios.h
@@ -18,6 +18,7 @@ FILE_LICENCE ( GPL2_OR_LATER );
 #define UMALLOC_MEMTOP
 #define SMBIOS_PCBIOS
 #define SANBOOT_PCBIOS
+#define ENTROPY_NULL
 
 #define	IMAGE_ELF		/* ELF image support */
 #define	IMAGE_MULTIBOOT		/* MultiBoot image support */
diff --git a/src/config/entropy.h b/src/config/entropy.h
new file mode 100644
index 000000000..7de2f6737
--- /dev/null
+++ b/src/config/entropy.h
@@ -0,0 +1,16 @@
+#ifndef CONFIG_ENTROPY_H
+#define CONFIG_ENTROPY_H
+
+/** @file
+ *
+ * Entropy API configuration
+ *
+ */
+
+FILE_LICENCE ( GPL2_OR_LATER );
+
+#include <config/defaults.h>
+
+#include <config/local/entropy.h>
+
+#endif /* CONFIG_ENTROPY_H */