xref: /openbmc/qemu/tests/functional/test_aarch64_kvm.py (revision 20b28f58b428a78ebd3f4b57b668dc0214918639) 
1#!/usr/bin/env python3
2#
3# Functional test that runs subsets of kvm-unit-tests on Aarch64.
4# These can run on TCG and any accelerator supporting nested
5# virtualisation.
6#
7# Copyright (c) 2025 Linaro
8#
9# Author:
10#  Alex Bennée <alex.bennee@linaro.org>
11#
12# SPDX-License-Identifier: GPL-2.0-or-later
13
14from qemu_test import Asset
15from qemu_test import exec_command_and_wait_for_pattern as ec_and_wait
16from qemu_test.linuxkernel import LinuxKernelTest
17
18
19class Aarch64VirtKVMTests(LinuxKernelTest):
20
21    ASSET_KVM_TEST_KERNEL = Asset(
22        'https://fileserver.linaro.org/s/HmjaxXXYHYSqbes/'
23        'download?path=%2F&files='
24        'image-with-kvm-tool-and-unit-tests.gz',
25        '34de4aaea90db5da42729e7d28b77f392c37a2f4da859f889a5234aaf0970696')
26
27    # make it easier to detect successful return to shell
28    PS1 = 'RES=[$?] # '
29    OK_CMD = 'RES=[0] # '
30
31    # base of tests
32    KUT_BASE = "/usr/share/kvm-unit-tests/"
33
34    def _launch_guest(self, kvm_mode="nvhe"):
35
36        self.set_machine('virt')
37        kernel_path = self.ASSET_KVM_TEST_KERNEL.fetch()
38
39        self.vm.set_console()
40        kernel_command_line = (self.KERNEL_COMMON_COMMAND_LINE +
41                               f"console=ttyAMA0 kvm-arm.mode={kvm_mode}")
42
43        self.vm.add_args("-cpu", "cortex-a72")
44        self.vm.add_args("-machine", "virt,gic-version=3,virtualization=on",
45                         '-kernel', kernel_path,
46                         '-append', kernel_command_line)
47        self.vm.add_args("-smp", "2", "-m", "320")
48
49        self.vm.launch()
50
51        self.wait_for_console_pattern('buildroot login:')
52        ec_and_wait(self, 'root', '#')
53        ec_and_wait(self, f"export PS1='{self.PS1}'", self.OK_CMD)
54
55    # this is just a smoketest, we don't run all the tests in the image
56    def _smoketest_kvm(self):
57        ec_and_wait(self, f"{self.KUT_BASE}/selftest-setup", self.OK_CMD)
58        ec_and_wait(self, f"{self.KUT_BASE}/selftest-smp", self.OK_CMD)
59        ec_and_wait(self, f"{self.KUT_BASE}/selftest-vectors-kernel", self.OK_CMD)
60        ec_and_wait(self, f"{self.KUT_BASE}/selftest-vectors-user", self.OK_CMD)
61
62    def test_aarch64_nvhe_selftest(self):
63        self._launch_guest("nvhe")
64        self._smoketest_kvm()
65
66    def test_aarch64_vhe_selftest(self):
67        self._launch_guest("vhe")
68        self._smoketest_kvm()
69
70if __name__ == '__main__':
71    LinuxKernelTest.main()
72