tests: Add functional tests for HPPA machines

Add quick firmware boot tests (less than 1sec) for the
B160L (32-bit) and C3700 (64-bit) HPPA machines:

  $ make check-functional-hppa
  ...
  4/4 qemu:func-quick+func-hppa / func-hppa-hppa_seabios    OK 0.22s 2 subtests passed

Remove the duplicated B160L test in qtest/boot-serial-test.c.

Suggested-by: Helge Deller <deller@gmx.de>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Helge Deller <deller@gmx.de>
Tested-by: Helge Deller <deller@gmx.de>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20250102100340.43014-3-philmd@linaro.org>

tests/functional/test_hppa_seabios.py

@@ -0,0 +1,35 @@
+#!/usr/bin/env python3
+#
+# SeaBIOS boot test for HPPA machines
+#
+# Copyright (c) 2024 Linaro, Ltd
+#
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+from qemu_test import QemuSystemTest
+from qemu_test import wait_for_console_pattern
+
+class HppaSeabios(QemuSystemTest):
+
+    timeout = 5
+    MACH_BITS = {'B160L': 32, 'C3700': 64}
+
+    def boot_seabios(self):
+        mach = self.machine
+        bits = self.MACH_BITS[mach]
+        self.vm.set_console()
+        self.vm.launch()
+        self.machine
+        wait_for_console_pattern(self, f'SeaBIOS PA-RISC {bits}-bit Firmware')
+        wait_for_console_pattern(self, f'Emulated machine:     HP {mach} ({bits}-bit')
+
+    def test_hppa_32(self):
+        self.set_machine('B160L')
+        self.boot_seabios()
+
+    def test_hppa_64(self):
+        self.set_machine('C3700')
+        self.boot_seabios()
+
+if __name__ == '__main__':
+    QemuSystemTest.main()