Add a functional test, aarch64_hotplug_pci, to exercise PCI hotplug and
hot-unplug on arm64.
Signed-off-by: Gustavo Romero
Reviewed-by: Daniel P. Berrangé
Acked-by: Thomas Huth
---
MAINTAINERS | 6 ++
tests/functional/meson.build | 1 +
tests/functional/test_aarch64_hotplug_pci.py | 74
3 files changed, 81 insertions(+)
create mode 100755 tests/functional/test_aarch64_hotplug_pci.py
diff --git a/MAINTAINERS b/MAINTAINERS
index 7060cf49b9..818d7b9d5f 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2078,6 +2078,12 @@ S: Supported
F: include/hw/pci/pcie_doe.h
F: hw/pci/pcie_doe.c
+ARM PCI Hotplug
+M: Gustavo Romero
+L: [email protected]
+S: Supported
+F: tests/functional/test_aarch64_hotplug_pci.py
+
ACPI/SMBIOS
M: Michael S. Tsirkin
M: Igor Mammedov
diff --git a/tests/functional/meson.build b/tests/functional/meson.build
index 52b4706cfe..2d68840fa2 100644
--- a/tests/functional/meson.build
+++ b/tests/functional/meson.build
@@ -83,6 +83,7 @@ tests_aarch64_system_quick = [
tests_aarch64_system_thorough = [
'aarch64_aspeed_ast2700',
'aarch64_aspeed_ast2700fc',
+ 'aarch64_hotplug_pci',
'aarch64_imx8mp_evk',
'aarch64_raspi3',
'aarch64_raspi4',
diff --git a/tests/functional/test_aarch64_hotplug_pci.py
b/tests/functional/test_aarch64_hotplug_pci.py
new file mode 100755
index 00..2cf5c28b9f
--- /dev/null
+++ b/tests/functional/test_aarch64_hotplug_pci.py
@@ -0,0 +1,74 @@
+#!/usr/bin/env python3
+#
+# SPDX-License-Identifier: GPL-2.0-or-later
+#
+# The test hotplugs a PCI device and checks it on a Linux guest.
+#
+# Copyright (c) 2025 Linaro Ltd.
+#
+# Author:
+# Gustavo Romero
+#
+# This work is licensed under the terms of the GNU GPL, version 2 or
+# later. See the COPYING file in the top-level directory.
+
+from qemu_test import LinuxKernelTest, Asset, exec_command_and_wait_for_pattern
+from qemu_test import BUILD_DIR
+
+class HotplugPCI(LinuxKernelTest):
+
+ASSET_KERNEL = Asset(
+('https://ftp.debian.org/debian/dists/stable/main/installer-arm64/'
+ '20230607+deb12u11/images/netboot/debian-installer/arm64/linux'),
+ 'd92a60392ce1e379ca198a1a820899f8f0d39a62d047c41ab79492f81541a9d9')
+
+ASSET_INITRD = Asset(
+('https://ftp.debian.org/debian/dists/stable/main/installer-arm64/'
+ '20230607+deb12u11/images/netboot/debian-installer/arm64/initrd.gz'),
+ '9f817f76951f3237bca8216bee35267bfb826815687f4b2fcdd5e6c2a917790c')
+
+def test_hotplug_pci(self):
+
+self.set_machine('virt')
+self.vm.add_args('-m', '512M')
+self.vm.add_args('-cpu', 'cortex-a57')
+self.vm.add_args('-append',
+ 'console=ttyAMA0,115200 init=/bin/sh')
+self.vm.add_args('-device',
+
'pcie-root-port,bus=pcie.0,chassis=1,slot=1,id=pcie.1')
+self.vm.add_args('-bios', self.build_file('pc-bios',
+ 'edk2-aarch64-code.fd'))
+
+# BusyBox prompt
+prompt = "~ #"
+self.launch_kernel(self.ASSET_KERNEL.fetch(),
+ self.ASSET_INITRD.fetch(),
+ wait_for=prompt)
+
+# Check for initial state: 2 network adapters, lo and enp0s1.
+exec_command_and_wait_for_pattern(self,
+ 'ls -l /sys/class/net | wc -l',
+ '2')
+
+# Hotplug one network adapter to the root port, i.e. pcie.1 bus.
+self.vm.cmd('device_add',
+driver='virtio-net-pci',
+bus='pcie.1',
+addr=0,
+id='na')
+# Wait for the kernel to recognize the new device.
+self.wait_for_console_pattern('virtio-pci')
+self.wait_for_console_pattern('virtio_net')
+
+# Check if there is a new network adapter.
+exec_command_and_wait_for_pattern(self,
+ 'ls -l /sys/class/net | wc -l',
+ '3')
+
+self.vm.cmd('device_del', id='na')
+exec_command_and_wait_for_pattern(self,
+ 'ls -l /sys/class/net | wc -l',
+ '2')
+
+if __name__ == '__main__':
+LinuxKernelTest.main()
--
2.34.1
