Enable LoongArch support in kunit.
Example:
$ ./tools/testing/kunit/kunit.py run --arch=loongarch --cross_compile=$CROSS_COMPILE [13:32:45] Configuring KUnit Kernel ... [13:32:45] Building KUnit Kernel ... Populating config with: $ make ARCH=loongarch olddefconfig CROSS_COMPILE=$CROSS_COMPILE Building with: $ make all compile_commands.json ARCH=loongarch --jobs=8 CROSS_COMPILE=$CROSS_COMPILE [13:32:48] Starting KUnit Kernel (1/1)... [13:32:48] ============================================================ Running tests with: $ qemu-system-loongarch64 -nodefaults -m 1024 -kernel .kunit/arch/loongarch/boot/vmlinux.elf -append 'kunit.enable=1 console=ttyS0 kunit_shutdown=poweroff' -no-reboot -nographic -serial stdio -machine virt -device pvpanic-pci -cpu max
...
[13:33:14] ============================================================ [13:33:14] Testing complete. Ran 493 tests: passed: 453, skipped: 40 [13:33:14] Elapsed time: 28.862s total, 0.002s configuring, 2.526s building, 26.302s running
This series is meant to be merged through the kselftest tree.
Signed-off-by: Thomas Weißschuh thomas.weissschuh@linutronix.de --- Changes in v2: - Drop already applied patch - Pick up review tags - Add SPDX header - Link to v1: https://lore.kernel.org/r/20241014-kunit-loongarch-v1-0-1699b2ad6099@linutro...
--- Thomas Weißschuh (3): kunit: qemu_configs: Add LoongArch config kunit: tool: Allow overriding the shutdown mode from qemu config kunit: qemu_configs: loongarch: Enable shutdown
tools/testing/kunit/kunit_kernel.py | 4 +++- tools/testing/kunit/qemu_configs/loongarch.py | 21 +++++++++++++++++++++ 2 files changed, 24 insertions(+), 1 deletion(-) --- base-commit: 2d5404caa8c7bb5c4e0435f94b28834ae5456623 change-id: 20241014-kunit-loongarch-98a5b756e818
Best regards,
Add a basic config to run kunit tests on LoongArch. This requires QEMU 9.1.0 or later for the necessary direct kernel boot support.
Signed-off-by: Thomas Weißschuh thomas.weissschuh@linutronix.de Reviewed-by: Bibo Mao maobibo@loongson.cn Reviewed-by: David Gow davidgow@google.com --- tools/testing/kunit/qemu_configs/loongarch.py | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+)
diff --git a/tools/testing/kunit/qemu_configs/loongarch.py b/tools/testing/kunit/qemu_configs/loongarch.py new file mode 100644 index 0000000000000000000000000000000000000000..a874a2156e0f791caaaf30e5f7b17fc175bb55ee --- /dev/null +++ b/tools/testing/kunit/qemu_configs/loongarch.py @@ -0,0 +1,18 @@ +# SPDX-License-Identifier: GPL-2.0 + +from ..qemu_config import QemuArchParams + +QEMU_ARCH = QemuArchParams(linux_arch='loongarch', + kconfig=''' +CONFIG_EFI_STUB=n +CONFIG_PCI_HOST_GENERIC=y +CONFIG_SERIAL_8250=y +CONFIG_SERIAL_8250_CONSOLE=y +CONFIG_SERIAL_OF_PLATFORM=y +''', + qemu_arch='loongarch64', + kernel_path='arch/loongarch/boot/vmlinux.elf', + kernel_command_line='console=ttyS0', + extra_qemu_params=[ + '-machine', 'virt', + '-cpu', 'max',])
Not all platforms support machine reboot. If it a proper reboot is not supported the machine will hang. Allow the QEMU configuration to override the necessary shutdown mode for the specific system under test.
Signed-off-by: Thomas Weißschuh thomas.weissschuh@linutronix.de Reviewed-by: David Gow davidgow@google.com --- tools/testing/kunit/kunit_kernel.py | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/tools/testing/kunit/kunit_kernel.py b/tools/testing/kunit/kunit_kernel.py index 61931c4926fd6645f2c62dd13f9842a432ec4167..e76d7894b6c5195ece49f0d8c7ac35130df428a9 100644 --- a/tools/testing/kunit/kunit_kernel.py +++ b/tools/testing/kunit/kunit_kernel.py @@ -105,7 +105,9 @@ class LinuxSourceTreeOperationsQemu(LinuxSourceTreeOperations): self._kconfig = qemu_arch_params.kconfig self._qemu_arch = qemu_arch_params.qemu_arch self._kernel_path = qemu_arch_params.kernel_path - self._kernel_command_line = qemu_arch_params.kernel_command_line + ' kunit_shutdown=reboot' + self._kernel_command_line = qemu_arch_params.kernel_command_line + if 'kunit_shutdown=' not in self._kernel_command_line: + self._kernel_command_line += ' kunit_shutdown=reboot' self._extra_qemu_params = qemu_arch_params.extra_qemu_params self._serial = qemu_arch_params.serial
QEMU for LoongArch does not yet support shutdown/restart through ACPI. Use the pvpanic driver to enable shutdowns. This requires 9.1.0 for shutdown support in pvpanic, but that is the requirement of kunit on LoongArch anyways.
Signed-off-by: Thomas Weißschuh thomas.weissschuh@linutronix.de Reviewed-by: Bibo Mao maobibo@loongson.cn Reviewed-by: David Gow davidgow@google.com --- tools/testing/kunit/qemu_configs/loongarch.py | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/tools/testing/kunit/qemu_configs/loongarch.py b/tools/testing/kunit/qemu_configs/loongarch.py index a874a2156e0f791caaaf30e5f7b17fc175bb55ee..a92422967d1da9f1658ef1e80d0d7365ddbae307 100644 --- a/tools/testing/kunit/qemu_configs/loongarch.py +++ b/tools/testing/kunit/qemu_configs/loongarch.py @@ -6,13 +6,16 @@ QEMU_ARCH = QemuArchParams(linux_arch='loongarch', kconfig=''' CONFIG_EFI_STUB=n CONFIG_PCI_HOST_GENERIC=y +CONFIG_PVPANIC=y +CONFIG_PVPANIC_PCI=y CONFIG_SERIAL_8250=y CONFIG_SERIAL_8250_CONSOLE=y CONFIG_SERIAL_OF_PLATFORM=y ''', qemu_arch='loongarch64', kernel_path='arch/loongarch/boot/vmlinux.elf', - kernel_command_line='console=ttyS0', + kernel_command_line='console=ttyS0 kunit_shutdown=poweroff', extra_qemu_params=[ '-machine', 'virt', + '-device', 'pvpanic-pci', '-cpu', 'max',])
linux-kselftest-mirror@lists.linaro.org
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Thomas Weißschuh