diff --git a/wally-pipelined/testbench/linux_comments.txt b/wally-pipelined/testbench/linux_comments.txt
new file mode 100644
index 000000000..5d5cc9ce7
--- /dev/null
+++ b/wally-pipelined/testbench/linux_comments.txt
@@ -0,0 +1,9 @@
+dut.HRDATA => dut.hart.lsu.dcache.ReadDataM
+HADDR => dut.hart.lsu.dcache.MemPAdrM
+HWDATA => dut.hart.lsu.dcache.WriteDataM
+HWRITE => dut.hart.lsu.dcache.MemRWM
+HTRANS => |dut.hart.lsu.dcache.MemRWM | |dut.hart.lsu.dcache.AtomicM
+
+HSIZE (probalby don't need anymore, read masking not necessary)
+HRDATA (no physical change, just rename to something else)
+