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#!/usr/bin/env python3
#
# Functional test that runs subsets of kvm-unit-tests on Aarch64.
# These can run on TCG and any accelerator supporting nested
# virtualisation.
#
# Copyright (c) 2025 Linaro
#
# Author:
# Alex Bennée <alex.bennee@linaro.org>
#
# SPDX-License-Identifier: GPL-2.0-or-later
from qemu_test import Asset
from qemu_test import exec_command_and_wait_for_pattern as ec_and_wait
from qemu_test.linuxkernel import LinuxKernelTest
class Aarch64VirtKVMTests(LinuxKernelTest):
ASSET_KVM_TEST_KERNEL = Asset(
'https://fileserver.linaro.org/s/HmjaxXXYHYSqbes/'
'download?path=%2F&files='
'image-with-kvm-tool-and-unit-tests.gz',
'34de4aaea90db5da42729e7d28b77f392c37a2f4da859f889a5234aaf0970696')
# make it easier to detect successful return to shell
PS1 = 'RES=[$?] # '
OK_CMD = 'RES=[0] # '
# base of tests
KUT_BASE = "/usr/share/kvm-unit-tests/"
def _launch_guest(self, kvm_mode="nvhe"):
self.set_machine('virt')
kernel_path = self.ASSET_KVM_TEST_KERNEL.fetch()
self.vm.set_console()
kernel_command_line = (self.KERNEL_COMMON_COMMAND_LINE +
f"console=ttyAMA0 kvm-arm.mode={kvm_mode}")
self.vm.add_args("-cpu", "cortex-a72")
self.vm.add_args("-machine", "virt,gic-version=3,virtualization=on",
'-kernel', kernel_path,
'-append', kernel_command_line)
self.vm.add_args("-smp", "2", "-m", "320")
self.vm.launch()
self.wait_for_console_pattern('buildroot login:')
ec_and_wait(self, 'root', '#')
ec_and_wait(self, f"export PS1='{self.PS1}'", self.OK_CMD)
# this is just a smoketest, we don't run all the tests in the image
def _smoketest_kvm(self):
ec_and_wait(self, f"{self.KUT_BASE}/selftest-setup", self.OK_CMD)
ec_and_wait(self, f"{self.KUT_BASE}/selftest-smp", self.OK_CMD)
ec_and_wait(self, f"{self.KUT_BASE}/selftest-vectors-kernel", self.OK_CMD)
ec_and_wait(self, f"{self.KUT_BASE}/selftest-vectors-user", self.OK_CMD)
def test_aarch64_nvhe_selftest(self):
self._launch_guest("nvhe")
self._smoketest_kvm()
def test_aarch64_vhe_selftest(self):
self._launch_guest("vhe")
self._smoketest_kvm()
if __name__ == '__main__':
LinuxKernelTest.main()
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