diff --git a/.gitmodules b/.gitmodules
index dfb5fcf20..361441a18 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -26,3 +26,6 @@
 [submodule "addins/vivado-risc-v"]
 	path = addins/vivado-risc-v
 	url = https://github.com/eugene-tarassov/vivado-risc-v.git
+[submodule "addins/riscv-arch-test"]
+	path = addins/riscv-arch-test
+	url = https://github.com/riscv-non-isa/riscv-arch-test
diff --git a/addins/riscv-arch-test b/addins/riscv-arch-test
new file mode 160000
index 000000000..4eea0a0f0
--- /dev/null
+++ b/addins/riscv-arch-test
@@ -0,0 +1 @@
+Subproject commit 4eea0a0f0e21f2613a114e45a5ad738e721c4044