diff --git a/BoardConfig.mk b/BoardConfig.mk
index 4908d16..39e0a96 100644
--- a/BoardConfig.mk
+++ b/BoardConfig.mk
@@ -17,5 +17,8 @@ TARGET_SCREEN_DENSITY := 440
 # Kernel
 TARGET_KERNEL_CONFIG += xiaomi/grus.config
 
+# VINTF
+DEVICE_MANIFEST_FILE += $(DEVICE_PATH)/manifest.xml
+
 # Inherit from the proprietary version
 include vendor/xiaomi/grus/BoardConfigVendor.mk
diff --git a/manifest.xml b/manifest.xml
new file mode 100644
index 0000000..e4eb7fc
--- /dev/null
+++ b/manifest.xml
@@ -0,0 +1,7 @@
+<manifest version="2.0" type="device">
+    <hal format="hidl">
+        <name>android.hardware.keymaster</name>
+        <transport>hwbinder</transport>
+        <fqname>@4.0::IKeymasterDevice/default</fqname>
+    </hal>
+</manifest>