From: Siddhi Katage <siddhi.katage@oracle.com>
Date: Tue, 10 Feb 2026 11:31:35 +0000 (+0000)
Subject: tests/functional: Add hotplug_scsi test to hotplug virtio-scsi disk
X-Git-Tag: v11.1.0-rc0~23^2~2
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=e579bb528c7bfeeb4b509e1cfeea6153af7295ed;p=thirdparty%2Fqemu.git

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>
---

diff --git a/MAINTAINERS b/MAINTAINERS
index 97dcc78ded6..ed656546981 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2338,6 +2338,7 @@ F: tests/qtest/virtio-scsi-test.c
 F: tests/qtest/fuzz-virtio-scsi-test.c
 F: tests/qtest/am53c974-test.c
 F: tests/qtest/fuzz-lsi53c895a-test.c
+F: tests/functional/x86_64/test_hotplug_scsi.py
 T: git https://github.com/bonzini/qemu.git scsi-next
 
 SSI
diff --git a/tests/functional/x86_64/meson.build b/tests/functional/x86_64/meson.build
index 1ed10ad6c29..d237ca156e7 100644
--- a/tests/functional/x86_64/meson.build
+++ b/tests/functional/x86_64/meson.build
@@ -31,6 +31,7 @@ endif
 tests_x86_64_system_thorough = [
   'acpi_bits',
   'hotplug_blk',
+  'hotplug_scsi',
   'hotplug_cpu',
   'intel_iommu',
   'kvm_xen',
diff --git a/tests/functional/x86_64/test_hotplug_scsi.py b/tests/functional/x86_64/test_hotplug_scsi.py
new file mode 100755
index 00000000000..10fd306616f
--- /dev/null
+++ b/tests/functional/x86_64/test_hotplug_scsi.py
@@ -0,0 +1,86 @@
+#!/usr/bin/env python3
+#
+# Functional test that hotplugs a virtio scsi disk and checks it on a Linux
+# guest
+#
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+from qemu_test import LinuxKernelTest, Asset, exec_command_and_wait_for_pattern
+
+class HotPlugScsi(LinuxKernelTest):
+    ASSET_KERNEL = Asset(
+        ('https://archives.fedoraproject.org/pub/archive/fedora/linux/releases'
+         '/31/Server/x86_64/os/images/pxeboot/vmlinuz'),
+        'd4738d03dbbe083ca610d0821d0a8f1488bebbdccef54ce33e3adb35fda00129')
+
+    ASSET_INITRD = Asset(
+        ('https://archives.fedoraproject.org/pub/archive/fedora/linux/releases'
+         '/31/Server/x86_64/os/images/pxeboot/initrd.img'),
+        '277cd6c7adf77c7e63d73bbb2cded8ef9e2d3a2f100000e92ff1f8396513cd8b')
+
+    def blockdev_add(self) -> None:
+        self.vm.cmd('blockdev-add', **{
+            'driver': 'null-co',
+            'size': 1073741824,
+            'node-name': 'disk0'
+        })
+
+    def add_scsi_controller(self) -> None:
+        self.vm.cmd('device_add', {
+            'driver': 'virtio-scsi-pci',
+            'id': 'scsi0',
+            'bus': 'pci.1',
+            'addr': '1',
+        })
+
+    def assert_sda(self) -> None:
+        exec_command_and_wait_for_pattern(self, 'while ! test -e /sys/block/sda ;'
+                                                ' do sleep 0.2 ; done', '# ')
+
+    def assert_no_sda(self) -> None:
+        exec_command_and_wait_for_pattern(self, 'while test -e /sys/block/sda ;'
+                                                ' do sleep 0.2 ; done', '# ')
+
+    def plug(self) -> None:
+        args = {
+            'driver':'scsi-hd',
+            'drive':'disk0',
+            'bus':'scsi0.0',
+            'id':'scsi-disk0',
+        }
+
+        self.assert_no_sda()
+        self.vm.cmd('device_add', args)
+        self.wait_for_console_pattern('[sda] Attached SCSI disk')
+        self.assert_sda()
+
+    def unplug(self) -> None:
+        self.vm.cmd('device_del', id='scsi-disk0')
+
+        self.vm.event_wait('DEVICE_DELETED', 1.0,
+                           match={'data': {'device': 'scsi-disk0'}})
+
+        self.assert_no_sda()
+
+    def test(self) -> None:
+        self.require_accelerator('kvm')
+        self.set_machine('q35')
+        self.vm.add_args('-accel', 'kvm')
+        self.vm.add_args('-device', 'pcie-pci-bridge,id=pci.1,bus=pcie.0')
+        self.vm.add_args('-m', '1G')
+        self.vm.add_args('-append', 'console=ttyS0 rd.rescue')
+
+        self.launch_kernel(self.ASSET_KERNEL.fetch(),
+                           self.ASSET_INITRD.fetch(),
+                           wait_for='Entering emergency mode.')
+        self.wait_for_console_pattern('# ')
+
+        self.blockdev_add()
+        self.add_scsi_controller()
+        self.plug()
+        self.unplug()
+
+
+if __name__ == '__main__':
+    LinuxKernelTest.main()
+