xref: /qemu/tests/functional/test_ppc64_hv.py (revision 3d5938607e05c4f8ac6df046a92fad19b681c23b) 
1#!/usr/bin/env python3
2#
3# Tests that specifically try to exercise hypervisor features of the
4# target machines. powernv supports the Power hypervisor ISA, and
5# pseries supports the nested-HV hypervisor spec.
6#
7# Copyright (c) 2023 IBM Corporation
8#
9# This work is licensed under the terms of the GNU GPL, version 2 or
10# later.  See the COPYING file in the top-level directory.
11
12from qemu_test import QemuSystemTest, Asset
13from qemu_test import wait_for_console_pattern, exec_command
14from qemu_test import skipIfMissingCommands, skipBigDataTest
15import os
16import time
17import subprocess
18from datetime import datetime
19
20# Alpine is a light weight distro that supports QEMU. These tests boot
21# that on the machine then run a QEMU guest inside it in KVM mode,
22# that runs the same Alpine distro image.
23# QEMU packages are downloaded and installed on each test. That's not a
24# large download, but it may be more polite to create qcow2 image with
25# QEMU already installed and use that.
26# XXX: The order of these tests seems to matter, see git blame.
27@skipIfMissingCommands("xorriso")
28@skipBigDataTest()
29class HypervisorTest(QemuSystemTest):
30
31    timeout = 1000
32    KERNEL_COMMON_COMMAND_LINE = 'printk.time=0 console=hvc0 '
33    panic_message = 'Kernel panic - not syncing'
34    good_message = 'VFS: Cannot open root device'
35
36    ASSET_ISO = Asset(
37        ('https://dl-cdn.alpinelinux.org/alpine/v3.18/'
38         'releases/ppc64le/alpine-standard-3.18.4-ppc64le.iso'),
39        'c26b8d3e17c2f3f0fed02b4b1296589c2390e6d5548610099af75300edd7b3ff')
40
41    def extract_from_iso(self, iso, path):
42        """
43        Extracts a file from an iso file into the test workdir
44
45        :param iso: path to the iso file
46        :param path: path within the iso file of the file to be extracted
47        :returns: path of the extracted file
48        """
49        filename = os.path.basename(path)
50
51        cwd = os.getcwd()
52        os.chdir(self.workdir)
53
54        cmd = "xorriso -osirrox on -indev %s -cpx %s %s" % (iso, path, filename)
55        subprocess.run(cmd.split(),
56                       stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL)
57
58        os.chmod(filename, 0o600)
59        os.chdir(cwd)
60
61        # Return complete path to extracted file.  Because callers to
62        # extract_from_iso() specify 'path' with a leading slash, it is
63        # necessary to use os.path.relpath() as otherwise os.path.join()
64        # interprets it as an absolute path and drops the self.workdir part.
65        return os.path.normpath(os.path.join(self.workdir, filename))
66
67    def setUp(self):
68        super().setUp()
69
70        self.iso_path = self.ASSET_ISO.fetch()
71        self.vmlinuz = self.extract_from_iso(self.iso_path, '/boot/vmlinuz-lts')
72        self.initramfs = self.extract_from_iso(self.iso_path, '/boot/initramfs-lts')
73
74    def do_start_alpine(self):
75        self.vm.set_console()
76        kernel_command_line = self.KERNEL_COMMON_COMMAND_LINE
77        self.vm.add_args("-kernel", self.vmlinuz)
78        self.vm.add_args("-initrd", self.initramfs)
79        self.vm.add_args("-smp", "4", "-m", "2g")
80        self.vm.add_args("-drive", f"file={self.iso_path},format=raw,if=none,"
81                                    "id=drive0,read-only=true")
82
83        self.vm.launch()
84        wait_for_console_pattern(self, 'Welcome to Alpine Linux 3.18')
85        exec_command(self, 'root')
86        wait_for_console_pattern(self, 'localhost login:')
87        wait_for_console_pattern(self, 'You may change this message by editing /etc/motd.')
88        # If the time is wrong, SSL certificates can fail.
89        exec_command(self, 'date -s "' + datetime.utcnow().strftime('%Y-%m-%d %H:%M:%S' + '"'))
90        exec_command(self, 'setup-alpine -qe')
91        wait_for_console_pattern(self, 'Updating repository indexes... done.')
92
93    def do_stop_alpine(self):
94        exec_command(self, 'poweroff')
95        wait_for_console_pattern(self, 'alpine:~#')
96        self.vm.wait()
97
98    def do_setup_kvm(self):
99        exec_command(self, 'echo http://dl-cdn.alpinelinux.org/alpine/v3.18/main > /etc/apk/repositories')
100        wait_for_console_pattern(self, 'alpine:~#')
101        exec_command(self, 'echo http://dl-cdn.alpinelinux.org/alpine/v3.18/community >> /etc/apk/repositories')
102        wait_for_console_pattern(self, 'alpine:~#')
103        exec_command(self, 'apk update')
104        wait_for_console_pattern(self, 'alpine:~#')
105        exec_command(self, 'apk add qemu-system-ppc64')
106        wait_for_console_pattern(self, 'alpine:~#')
107        exec_command(self, 'modprobe kvm-hv')
108        wait_for_console_pattern(self, 'alpine:~#')
109
110    # This uses the host's block device as the source file for guest block
111    # device for install media. This is a bit hacky but allows reuse of the
112    # iso without having a passthrough filesystem configured.
113    def do_test_kvm(self, hpt=False):
114        if hpt:
115            append = 'disable_radix'
116        else:
117            append = ''
118        exec_command(self, 'qemu-system-ppc64 -nographic -smp 2 -m 1g '
119                           '-machine pseries,x-vof=on,accel=kvm '
120                           '-machine cap-cfpc=broken,cap-sbbc=broken,'
121                                    'cap-ibs=broken,cap-ccf-assist=off '
122                           '-drive file=/dev/nvme0n1,format=raw,readonly=on '
123                           '-initrd /media/nvme0n1/boot/initramfs-lts '
124                           '-kernel /media/nvme0n1/boot/vmlinuz-lts '
125                           '-append \'usbcore.nousb ' + append + '\'')
126        # Alpine 3.18 kernel seems to crash in XHCI USB driver.
127        wait_for_console_pattern(self, 'Welcome to Alpine Linux 3.18')
128        exec_command(self, 'root')
129        wait_for_console_pattern(self, 'localhost login:')
130        wait_for_console_pattern(self, 'You may change this message by editing /etc/motd.')
131        exec_command(self, 'poweroff >& /dev/null')
132        wait_for_console_pattern(self, 'localhost:~#')
133        wait_for_console_pattern(self, 'reboot: Power down')
134        time.sleep(1)
135        exec_command(self, '')
136        wait_for_console_pattern(self, 'alpine:~#')
137
138    def test_hv_pseries(self):
139        self.require_accelerator("tcg")
140        self.set_machine('pseries')
141        self.vm.add_args("-accel", "tcg,thread=multi")
142        self.vm.add_args('-device', 'nvme,serial=1234,drive=drive0')
143        self.vm.add_args("-machine", "x-vof=on,cap-nested-hv=on")
144        self.do_start_alpine()
145        self.do_setup_kvm()
146        self.do_test_kvm()
147        self.do_stop_alpine()
148
149    def test_hv_pseries_kvm(self):
150        self.require_accelerator("kvm")
151        self.set_machine('pseries')
152        self.vm.add_args("-accel", "kvm")
153        self.vm.add_args('-device', 'nvme,serial=1234,drive=drive0')
154        self.vm.add_args("-machine", "x-vof=on,cap-nested-hv=on,cap-ccf-assist=off")
155        self.do_start_alpine()
156        self.do_setup_kvm()
157        self.do_test_kvm()
158        self.do_stop_alpine()
159
160    def test_hv_powernv(self):
161        self.require_accelerator("tcg")
162        self.set_machine('powernv')
163        self.vm.add_args("-accel", "tcg,thread=multi")
164        self.vm.add_args('-device', 'nvme,bus=pcie.2,addr=0x0,serial=1234,drive=drive0',
165                         '-device', 'e1000e,netdev=net0,mac=C0:FF:EE:00:00:02,bus=pcie.0,addr=0x0',
166                         '-netdev', 'user,id=net0,hostfwd=::20022-:22,hostname=alpine')
167        self.do_start_alpine()
168        self.do_setup_kvm()
169        self.do_test_kvm()
170        self.do_test_kvm(True)
171        self.do_stop_alpine()
172
173if __name__ == '__main__':
174    QemuSystemTest.main()
175