diff --git a/kernel/comps/virtio/src/transport/mmio/bus/arch/loongarch.rs b/kernel/comps/virtio/src/transport/mmio/bus/arch/loongarch.rs
index f5e355bbf..1c9e7b5e2 100644
--- a/kernel/comps/virtio/src/transport/mmio/bus/arch/loongarch.rs
+++ b/kernel/comps/virtio/src/transport/mmio/bus/arch/loongarch.rs
@@ -1,8 +1,9 @@
 // SPDX-License-Identifier: MPL-2.0
 
-// TODO: Add `MappedIrqLine` support for Loongarch.
+// TODO: Add `MappedIrqLine` support for LoongArch.
 pub(super) use ostd::irq::IrqLine as MappedIrqLine;
 
 pub(super) fn probe_for_device() {
-    unimplemented!()
+    // TODO: Probe virtio devices on the MMIO bus in LoongArch.
+    // Then, register them by calling `super::try_register_mmio_device`.
 }