[PATCH v5 6/7] tests/functional/riscv64: Add boot test for Milk-V Duo board

[Kuan-Wei Chiu <visitorckw@gmail.com>]

Add a functional boot test for the Milk-V Duo board to validate the
end-to-end boot flow.

$ ./build/run ./tests/functional/riscv64/test_milkv_duo.py
TAP version 13
ok 1 test_milkv_duo.MilkvDuoMachine.test_riscv64_milkv_duo
1..1

Signed-off-by: Kuan-Wei Chiu <visitorckw@gmail.com>
---
 MAINTAINERS                                |  1 +
 tests/functional/riscv64/meson.build       |  1 +
 tests/functional/riscv64/test_milkv_duo.py | 53 ++++++++++++++++++++++
 3 files changed, 55 insertions(+)
 create mode 100755 tests/functional/riscv64/test_milkv_duo.py

diff --git a/MAINTAINERS b/MAINTAINERS
index f7e4159679..689424fd1c 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1880,6 +1880,7 @@ F: hw/riscv/cv1800b.c
 F: hw/riscv/milkv_duo.c
 F: include/hw/misc/cv1800b_clk.h
 F: include/hw/riscv/cv1800b.h
+F: tests/functional/riscv64/test_milkv_duo.py
 F: tests/qtest/milkv-duo-test.c
 
 RX Machines
diff --git a/tests/functional/riscv64/meson.build b/tests/functional/riscv64/meson.build
index d1a3e6c2bf..8a4f1d00f9 100644
--- a/tests/functional/riscv64/meson.build
+++ b/tests/functional/riscv64/meson.build
@@ -18,4 +18,5 @@ tests_riscv64_system_thorough = [
   'sifive_u',
   'tt_atlantis',
   'tuxrun',
+  'milkv_duo',
 ]
diff --git a/tests/functional/riscv64/test_milkv_duo.py b/tests/functional/riscv64/test_milkv_duo.py
new file mode 100755
index 0000000000..6a7e2a5d19
--- /dev/null
+++ b/tests/functional/riscv64/test_milkv_duo.py
@@ -0,0 +1,53 @@
+#!/usr/bin/env python3
+#
+# Functional test that boots a Linux kernel on a Milk-V Duo machine
+#
+# Copyright (c) 2026 Kuan-Wei Chiu <visitorckw@gmail.com>
+#
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+from qemu_test import LinuxKernelTest, Asset
+from qemu_test import skipIfMissingCommands, wait_for_console_pattern
+
+class MilkvDuoMachine(LinuxKernelTest):
+
+    timeout = 120
+
+    ASSET_KERNEL = Asset(
+        'https://storage.tuxboot.com/kernels/6.11.9/riscv64/Image',
+        '174f8bb87f08961e54fa3fcd954a8e31f4645f6d6af4dd43983d5e9841490fb0'
+    )
+    ASSET_DTBS = Asset(
+        'https://storage.tuxboot.com/kernels/6.11.9/riscv64/dtbs.tar.xz',
+        '97e5e65a7e6c68303e53486af120c0846ee8df572e9c15f0c4dccb831d0cef4b'
+    )
+    ASSET_ROOTFS = Asset(
+        'https://storage.tuxboot.com/buildroot/20241119/riscv64/rootfs.ext4.zst',
+        'aa4736a9872651dfc0d95e709465eedf1134fd19d42b8cb305bfd776f9801004'
+    )
+
+    @skipIfMissingCommands('zstd')
+    def test_riscv64_milkv_duo(self):
+        self.set_machine('milkv-duo')
+
+        kernel_path = self.ASSET_KERNEL.fetch()
+        dtb_path = self.archive_extract(
+            self.ASSET_DTBS, member='dtbs/sophgo/cv1800b-milkv-duo.dtb')
+        rootfs_path = self.uncompress(self.ASSET_ROOTFS)
+
+        self.vm.set_console()
+        self.vm.add_args('-bios', 'default',
+                         '-kernel', kernel_path,
+                         '-dtb', dtb_path,
+                         '-drive', f'file={rootfs_path},format=raw,id=sd-card,snapshot=on',
+                         '-device', 'sd-card,drive=sd-card',
+                         '-append', 'console=ttyS0,115200 root=/dev/mmcblk0 rootwait earlycon')
+
+        self.vm.launch()
+
+        wait_for_console_pattern(self, 'Machine model: Milk-V Duo')
+        wait_for_console_pattern(self, 'Welcome to TuxTest')
+        wait_for_console_pattern(self, 'tuxtest login:')
+
+if __name__ == '__main__':
+    LinuxKernelTest.main()
-- 
2.56.0.rc1.315.gc6ed9934b7-goog