--- /dev/null
+#ifndef _IPXE_LINUX_ENTROPY_H
+#define _IPXE_LINUX_ENTROPY_H
+
+/** @file
+ *
+ * iPXE entropy API for linux
+ *
+ */
+
+FILE_LICENCE(GPL2_OR_LATER);
+
+#ifdef ENTROPY_LINUX
+#define ENTROPY_PREFIX_linux
+#else
+#define ENTROPY_PREFIX_linux __linux_
+#endif
+
+/**
+ * min-entropy per sample
+ *
+ * @ret min_entropy min-entropy of each sample
+ */
+static inline __always_inline double
+ENTROPY_INLINE ( linux, min_entropy_per_sample ) ( void ) {
+
+ /* We read single bytes from /dev/random and assume that each
+ * contains full entropy.
+ */
+ return 8;
+}
+
+#endif /* _IPXE_LINUX_ENTROPY_H */