kunit: qemu_configs: loongarch: Enable shutdown

QEMU for LoongArch does not yet support shutdown/restart through ACPI.
Use the pvpanic driver to enable shutdowns.
This requires 9.1.0 for shutdown support in pvpanic, but that is the
requirement of kunit on LoongArch anyways.

Link: https://lore.kernel.org/r/20241111-kunit-loongarch-v2-3-7676eb5f2da3@linutronix.de
Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Reviewed-by: Bibo Mao <maobibo@loongson.cn>
Reviewed-by: David Gow <davidgow@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>

Author: t-8ch

tools/testing/kunit/qemu_configs/loongarch.py

@@ -6,13 +6,16 @@
 			   kconfig='''
 CONFIG_EFI_STUB=n
 CONFIG_PCI_HOST_GENERIC=y
+CONFIG_PVPANIC=y
+CONFIG_PVPANIC_PCI=y
 CONFIG_SERIAL_8250=y
 CONFIG_SERIAL_8250_CONSOLE=y
 CONFIG_SERIAL_OF_PLATFORM=y
 ''',
 			   qemu_arch='loongarch64',
 			   kernel_path='arch/loongarch/boot/vmlinux.elf',
-			   kernel_command_line='console=ttyS0',
+			   kernel_command_line='console=ttyS0 kunit_shutdown=poweroff',
 			   extra_qemu_params=[
 					   '-machine', 'virt',
+					   '-device', 'pvpanic-pci',
 					   '-cpu', 'max',])