diff --git a/tests/coverage/lsu.S b/tests/coverage/lsu.S
new file mode 100644
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--- /dev/null
+++ b/tests/coverage/lsu.S
@@ -0,0 +1,33 @@
+///////////////////////////////////////////
+// lsu.S
+//
+// Written: Kevin Box and Miles Cook kbox@hmc.edu mdcook@hmc.edu 26 March 2023
+//
+// Purpose: Test coverage for lsu
+//
+// A component of the CORE-V-WALLY configurable RISC-V project.
+// 
+// Copyright (C) 2021-23 Harvey Mudd College & Oklahoma State University
+//
+// SPDX-License-Identifier: Apache-2.0 WITH SHL-2.1
+//
+// Licensed under the Solderpad Hardware License v 2.1 (the “License”); you may not use this file 
+// except in compliance with the License, or, at your option, the Apache License version 2.0. You 
+// may obtain a copy of the License at
+//
+// https://solderpad.org/licenses/SHL-2.1/
+//
+// Unless required by applicable law or agreed to in writing, any work distributed under the 
+// License is distributed on an “AS IS” BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, 
+// either express or implied. See the License for the specific language governing permissions 
+// and limitations under the License.
+////////////////////////////////////////////////////////////////////////////////////////////////
+
+// load code to initalize stack, handle interrupts, terminate
+#include "WALLY-init-lib.h"
+
+main:
+
+    sfence.vma x0, x0 // sfence.vma to assert TLBFlush
+
+    j done