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c566e5c645
Use the helper to simplify the test. Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
104 lines
4.1 KiB
Python
104 lines
4.1 KiB
Python
import os
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import infra.basetest
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class TestKmod(infra.basetest.BRTest):
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# This test uses the "virtio_net" driver compiled as a module, and
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# compressed modules to test that kmod can handle them. We need to
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# compile a kernel for that.
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kernel_fragments = (
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infra.filepath("tests/package/test_kmod/compressed-modules.fragment"),
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infra.filepath("tests/package/test_kmod/linux-virtio-net.fragment"),
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)
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config = \
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f"""
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BR2_aarch64=y
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BR2_TOOLCHAIN_EXTERNAL=y
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BR2_TARGET_GENERIC_GETTY_PORT="ttyAMA0"
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BR2_LINUX_KERNEL=y
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BR2_LINUX_KERNEL_CUSTOM_VERSION=y
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BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="6.6.135"
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BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
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BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="board/qemu/aarch64-virt/linux.config"
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BR2_LINUX_KERNEL_CONFIG_FRAGMENT_FILES="{" ".join(kernel_fragments)}"
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BR2_PACKAGE_BUSYBOX_SHOW_OTHERS=y
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BR2_PACKAGE_KMOD=y
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BR2_PACKAGE_KMOD_TOOLS=y
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BR2_PACKAGE_ZSTD=y
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BR2_PACKAGE_HOST_KMOD=y
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BR2_PACKAGE_HOST_KMOD_ZSTD=y
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BR2_TARGET_ROOTFS_EXT2=y
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BR2_TARGET_ROOTFS_EXT2_4=y
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# BR2_TARGET_ROOTFS_TAR is not set
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"""
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def test_run(self):
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drive = os.path.join(self.builddir, "images", "rootfs.ext4")
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kern = os.path.join(self.builddir, "images", "Image")
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self.emulator.boot(arch="aarch64",
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kernel=kern,
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kernel_cmdline=["root=/dev/vda console=ttyAMA0"],
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options=["-M", "virt",
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"-cpu", "cortex-a57",
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"-m", "256M",
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"-drive", f"file={drive},if=virtio,format=raw"])
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self.emulator.login()
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# We check the kmod program can run. Busybox does not have a
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# kmod applet, so there is no possible confusion.
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self.assertRunOk("kmod --version")
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# We check the "modprobe" is the one from kmod, rather than
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# the Busybox applet version.
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out, ret = self.emulator.run("modprobe --version")
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self.assertEqual(ret, 0)
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self.assertTrue(out[0].startswith("kmod version"))
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self.assertIn("+ZSTD", out[1])
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# List modules with "kmod list", the virtio-net module should
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# NOT be loaded yet.
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out, ret = self.emulator.run("kmod list")
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self.assertEqual(ret, 0)
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self.assertNotIn("virtio_net", "\n".join(out))
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# Get module info with modinfo.
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out, ret = self.emulator.run("modinfo virtio-net")
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self.assertEqual(ret, 0)
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lsmod_out = "\n".join(out)
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self.assertRegex(lsmod_out, r'name: *virtio_net')
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self.assertRegex(lsmod_out, r'description: *Virtio network driver')
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self.assertRegex(lsmod_out, r'filename:\s+/.*/virtio_net.ko.zst')
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# With this test configuration, we are not supposed to have an
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# eth0 Ethernet interface yet. Attempting to show info on this
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# interface is expected to fail .
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self.assertRunNotOk("ip link show dev eth0")
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# We try to load the module.
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self.assertRunOk("modprobe virtio-net")
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# We should now see the module in the list. This time, we use
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# the "lsmod" command.
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out, ret = self.emulator.run("lsmod")
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self.assertEqual(ret, 0)
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self.assertIn("virtio_net", "\n".join(out))
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# The eth0 interface is supposed to be available, after the
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# module loading. We configure the emulator user network to
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# test the driver networking functionality. See:
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# https://wiki.qemu.org/Documentation/Networking
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self.assertRunOk("ip addr add dev eth0 10.0.2.15/24")
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self.assertRunOk("ip link set dev eth0 up")
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# We check we can ping the emulator.
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ping_cmd = "ping -i 0.3 -c 2 10.0.2.2"
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self.assertRunOk(ping_cmd)
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# We check we can unload the driver.
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self.assertRunOk("modprobe -r virtio-net")
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# Now the driver is unloaded, we should no longer be able to
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# ping the emulator.
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self.assertRunNotOk(ping_cmd)
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