diff --git a/observation/src/biotop/biotop.c b/observation/src/biotop/biotop.c
new file mode 100644
index 0000000000000000000000000000000000000000..2ed52f83cbbb81becdce46546a4d3c8165cfe61f
--- /dev/null
+++ b/observation/src/biotop/biotop.c
@@ -0,0 +1,29 @@
+// SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause)
+
+#include "commons.h"
+#include "biotop.h"
+#include "biotop.skel.h"
+#include "trace_helpers.h"
+#include "compat.h"
+
+#define OUTPUT_ROWS_LIMIT	10240
+
+enum SORT {
+	ALL,
+	IO,
+	BYTES,
+	TIME,
+};
+
+struct disk {
+	int major;
+	int minor;
+	char name[256];
+};
+
+struct vector {
+	size_t nr;
+	size_t capacity;
+	void **elems;
+};
+