tests/functional: Add hotplug_scsi test to hotplug virtio-scsi disk
Signed-off-by: Siddhi Katage <siddhi.katage@oracle.com> Message-ID: <20260210113135.771697-1-siddhi.katage@oracle.com> [thuth: Add the new .py file to the MAINTAINERS file] Signed-off-by: Thomas Huth <th.huth@posteo.eu>
Siddhi Katage committed
Feb 10, 2026 at 11:31 UTC
e579bb528c7bfeeb4b509e1cfeea6153af7295ed
3 files changed
+88
MAINTAINERS
+1
@@ -2338,6 +2338,7 @@ F: tests/qtest/virtio-scsi-test.c
2338
F: tests/qtest/fuzz-virtio-scsi-test.c
2339
F: tests/qtest/am53c974-test.c
2340
F: tests/qtest/fuzz-lsi53c895a-test.c
2341
+F: tests/functional/x86_64/test_hotplug_scsi.py
2342
T: git https://github.com/bonzini/qemu.git scsi-next
2343
2344
SSI
tests/functional/x86_64/meson.build
+1
@@ -31,6 +31,7 @@ endif
31
tests_x86_64_system_thorough = [
32
'acpi_bits',
33
'hotplug_blk',
34
+ 'hotplug_scsi',
35
'hotplug_cpu',
36
'intel_iommu',
37
'kvm_xen',
tests/functional/x86_64/test_hotplug_scsi.py
new
+86
@@ -0,0 +1,86 @@
1
+#!/usr/bin/env python3
2
+#
3
+# Functional test that hotplugs a virtio scsi disk and checks it on a Linux
4
+# guest
5
+#
6
+# SPDX-License-Identifier: GPL-2.0-or-later
7
+
8
+from qemu_test import LinuxKernelTest, Asset, exec_command_and_wait_for_pattern
9
+
10
+class HotPlugScsi(LinuxKernelTest):
11
+ ASSET_KERNEL = Asset(
12
+ ('https://archives.fedoraproject.org/pub/archive/fedora/linux/releases'
13
+ '/31/Server/x86_64/os/images/pxeboot/vmlinuz'),
14
+ 'd4738d03dbbe083ca610d0821d0a8f1488bebbdccef54ce33e3adb35fda00129')
15
+
16
+ ASSET_INITRD = Asset(
17
+ ('https://archives.fedoraproject.org/pub/archive/fedora/linux/releases'
18
+ '/31/Server/x86_64/os/images/pxeboot/initrd.img'),
19
+ '277cd6c7adf77c7e63d73bbb2cded8ef9e2d3a2f100000e92ff1f8396513cd8b')
20
+
21
+ def blockdev_add(self) -> None:
22
+ self.vm.cmd('blockdev-add', **{
23
+ 'driver': 'null-co',
24
+ 'size': 1073741824,
25
+ 'node-name': 'disk0'
26
+ })
27
+
28
+ def add_scsi_controller(self) -> None:
29
+ self.vm.cmd('device_add', {
30
+ 'driver': 'virtio-scsi-pci',
31
+ 'id': 'scsi0',
32
+ 'bus': 'pci.1',
33
+ 'addr': '1',
34
+ })
35
+
36
+ def assert_sda(self) -> None:
37
+ exec_command_and_wait_for_pattern(self, 'while ! test -e /sys/block/sda ;'
38
+ ' do sleep 0.2 ; done', '# ')
39
+
40
+ def assert_no_sda(self) -> None:
41
+ exec_command_and_wait_for_pattern(self, 'while test -e /sys/block/sda ;'
42
+ ' do sleep 0.2 ; done', '# ')
43
+
44
+ def plug(self) -> None:
45
+ args = {
46
+ 'driver':'scsi-hd',
47
+ 'drive':'disk0',
48
+ 'bus':'scsi0.0',
49
+ 'id':'scsi-disk0',
50
+ }
51
+
52
+ self.assert_no_sda()
53
+ self.vm.cmd('device_add', args)
54
+ self.wait_for_console_pattern('[sda] Attached SCSI disk')
55
+ self.assert_sda()
56
+
57
+ def unplug(self) -> None:
58
+ self.vm.cmd('device_del', id='scsi-disk0')
59
+
60
+ self.vm.event_wait('DEVICE_DELETED', 1.0,
61
+ match={'data': {'device': 'scsi-disk0'}})
62
+
63
+ self.assert_no_sda()
64
+
65
+ def test(self) -> None:
66
+ self.require_accelerator('kvm')
67
+ self.set_machine('q35')
68
+ self.vm.add_args('-accel', 'kvm')
69
+ self.vm.add_args('-device', 'pcie-pci-bridge,id=pci.1,bus=pcie.0')
70
+ self.vm.add_args('-m', '1G')
71
+ self.vm.add_args('-append', 'console=ttyS0 rd.rescue')
72
+
73
+ self.launch_kernel(self.ASSET_KERNEL.fetch(),
74
+ self.ASSET_INITRD.fetch(),
75
+ wait_for='Entering emergency mode.')
76
+ self.wait_for_console_pattern('# ')
77
+
78
+ self.blockdev_add()
79
+ self.add_scsi_controller()
80
+ self.plug()
81
+ self.unplug()
82
+
83
+
84
+if __name__ == '__main__':
85
+ LinuxKernelTest.main()
86
+