Re: [poky] [PATCH 4/4] oe-selftest: add a beaglebone-yocto fitimage Qemu test

["Antonin Godard" <antonin.godard@bootlin.com>]

On Sat Jun 21, 2025 at 6:26 PM CEST, Adrian Freihofer via lists.yoctoproject.org wrote:
> From: Adrian Freihofer <adrian.freihofer@siemens.com>
>
> The kernel configuration of the beaglebone-yocto MACHINE supports booting
> on real hardware as well as in Qemu. Add an oe-selftest which tests that
> booting in Qemu is possible even when the kernel is a FIT image kernel
> with a RAM disk.
> Since Qemu does not support FIT images, Qemu boots the zImage in direct
> kernel mode. This works with or without initramfs.
>
> Signed-off-by: Adrian Freihofer <adrian.freihofer@siemens.com>
> ---
>  .../selftest/cases/beaglebone_yocto_qemu.py   | 39 +++++++++++++++++++
>  1 file changed, 39 insertions(+)
>  create mode 100644 meta-yocto-bsp/lib/oeqa/selftest/cases/beaglebone_yocto_qemu.py
>
> diff --git a/meta-yocto-bsp/lib/oeqa/selftest/cases/beaglebone_yocto_qemu.py b/meta-yocto-bsp/lib/oeqa/selftest/cases/beaglebone_yocto_qemu.py
> new file mode 100644
> index 00000000000..aeae431fd2c
> --- /dev/null
> +++ b/meta-yocto-bsp/lib/oeqa/selftest/cases/beaglebone_yocto_qemu.py
> @@ -0,0 +1,39 @@
> +
> +from oeqa.selftest.case import OESelftestTestCase
> +from oeqa.utils.commands import runCmd, bitbake, runqemu, runqemu_check_taps
> +from oeqa.core.decorator import OETestTag
> +
> +
> +class BeagleboneYoctoQemuTests(OESelftestTestCase):
> +
> +    @OETestTag("runqemu")
> +    def test_fit_image_initramfs_qemu(self):
> +        """
> +        Summary:     Verify building an image including a FIT image kernel and booting in Qemu works.
> +        Expected:    1. core-image-minimal including a FIT image in /boot gets built
> +                     2. Qemu can boot the zImage and initramfs with direct kernel boot
> +                        since Qemu does not support FIT images
> +        """
> +
> +        config = """
> +DISTRO = "poky"
> +MACHINE = "beaglebone-yocto"
> +INITRAMFS_IMAGE = "core-image-initramfs-boot"
> +FIT_IMAGE_KERNEL = "1"
> +# Do not override kernel command line network configuration
> +BAD_RECOMMENDATIONS:append:pn-oe-selftest-image = " init-ifupdown"
> +"""
> +        self.write_config(config)
> +        if not runqemu_check_taps():
> +            self.skipTest('No tap devices found - you must set up tap devices with scripts/runqemu-gen-tapdevs before running this test')
> +        testimage = "oe-selftest-image"
> +        bitbake(testimage)
> +        # Boot the image
> +        with runqemu(testimage) as qemu:
> +            # Run a test command to see if it was installed properly
> +            sshargs = '-o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no'
> +            result = runCmd('ssh %s root@%s %s' % (sshargs, qemu.ip, "ls -1 /boot"))
> +            self.logger.debug("ls -1 /boot: %s" % str(result.output))
> +            boot_files = result.output.splitlines()
> +            self.assertIn("fitImage", boot_files)
> +            self.assertNotIn("zImage", boot_files)

Hi Adrian,

I think this is causing the following issue on the autobuilder:

ERROR: Nothing RPROVIDES 'ssh-pregen-hostkeys' (but /srv/pokybuild/yocto-worker/oe-selftest-debian/build/build-st-730917/meta-selftest/recipes-test/images/oe-selftest-image.bb RDEPENDS on or otherwise requires it)
ssh-pregen-hostkeys was skipped: incompatible with machine beaglebone-yocto (not in COMPATIBLE_MACHINE)

Can you look into it?

Thanks,
Antonin

-- 
Antonin Godard, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com