diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 00000000..f5a46fc3
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "src/Mayaqua/cpu_features"]
+	path = src/Mayaqua/cpu_features
+	url = https://github.com/google/cpu_features.git
diff --git a/src/Mayaqua/cpu_features b/src/Mayaqua/cpu_features
new file mode 160000
index 00000000..26133d3b
--- /dev/null
+++ b/src/Mayaqua/cpu_features
@@ -0,0 +1 @@
+Subproject commit 26133d3b620c2c27f31d571efd27371100f891e9