Re: [PATCH v2 7/7] tests/avocado: add boot_xen tests

[Cleber Rosa]

On Thu, Feb 11, 2021 at 05:19:45PM +0000, Alex Bennée wrote:
> These tests make sure we can boot the Xen hypervisor with a Dom0
> kernel using the guest-loader. We currently have to use a kernel I
> built myself because there are issues using the Debian kernel images.
> 
> Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
> ---
>  MAINTAINERS                  |   1 +
>  tests/acceptance/boot_xen.py | 117 +++++++++++++++++++++++++++++++++++
>  2 files changed, 118 insertions(+)
>  create mode 100644 tests/acceptance/boot_xen.py
> 
> diff --git a/MAINTAINERS b/MAINTAINERS
> index 853f174fcf..537ca7a6f3 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -1998,6 +1998,7 @@ M: Alex Bennée <alex.bennee@linaro.org>
>  S: Maintained
>  F: hw/core/guest-loader.c
>  F: docs/system/guest-loader.rst
> +F: tests/acceptance/boot_xen.py
>  
>  Intel Hexadecimal Object File Loader
>  M: Su Hang <suhang16@mails.ucas.ac.cn>
> diff --git a/tests/acceptance/boot_xen.py b/tests/acceptance/boot_xen.py
> new file mode 100644
> index 0000000000..8c7e091d40
> --- /dev/null
> +++ b/tests/acceptance/boot_xen.py
> @@ -0,0 +1,117 @@
> +# Functional test that boots a Xen hypervisor with a domU kernel and
> +# checks the console output is vaguely sane .
> +#
> +# Copyright (c) 2020 Linaro
> +#
> +# Author:
> +#  Alex Bennée <alex.bennee@linaro.org>
> +#
> +# SPDX-License-Identifier: GPL-2.0-or-later
> +#
> +# This work is licensed under the terms of the GNU GPL, version 2 or
> +# later.  See the COPYING file in the top-level directory.
> +
> +import os
> +
> +from avocado import skipIf
> +from avocado_qemu import wait_for_console_pattern
> +from boot_linux_console import LinuxKernelTest
> +
> +
> +class BootXenBase(LinuxKernelTest):
> +    """
> +    Boots a Xen hypervisor with a Linux DomU kernel.
> +    """
> +
> +    timeout = 90
> +    XEN_COMMON_COMMAND_LINE = 'dom0_mem=128M loglvl=all guest_loglvl=all'
> +
> +    def fetch_guest_kernel(self):
> +        # Using my own built kernel - which works
> +        kernel_url = ('https://fileserver.linaro.org/'
> +                      's/JSsewXGZ6mqxPr5/download?path=%2F&files='
> +                      'linux-5.9.9-arm64-ajb')
> +        kernel_sha1 = '4f92bc4b9f88d5ab792fa7a43a68555d344e1b83'
> +        kernel_path = self.fetch_asset(kernel_url,
> +                                       asset_hash=kernel_sha1)
> +
> +        return kernel_path
> +
> +    def launch_xen(self, xen_path):
> +        """
> +        Launch Xen with a dom0 guest kernel
> +        """
> +        self.log.info("launch with xen_path: %s", xen_path)
> +        kernel_path = self.fetch_guest_kernel()
> +
> +        self.vm.set_console()
> +
> +        xen_command_line = self.XEN_COMMON_COMMAND_LINE
> +        self.vm.add_args('-machine', 'virtualization=on',
> +                         '-cpu', 'cortex-a57',
> +                         '-m', '768',
> +                         '-kernel', xen_path,
> +                         '-append', xen_command_line,
> +                         '-device',
> +                         
> "guest-loader,addr=0x47000000,kernel=%s,bootargs=console=hvc0"

Nitpick/OCD: single quotes to match all other args?

> +                         % (kernel_path))
> +
> +        self.vm.launch()
> +
> +        console_pattern = 'VFS: Cannot open root device'
> +        wait_for_console_pattern(self, console_pattern, "Panic on CPU 0:")
> +
> +
> +class BootXen(BootXenBase):
> +
> +    @skipIf(os.getenv('GITLAB_CI'), 'Running on GitLab')
> +    def test_arm64_xen_411_and_dom0(self):
> +        """
> +        :avocado: tags=arch:aarch64
> +        :avocado: tags=accel:tcg
> +        :avocado: tags=cpu:cortex-a57
> +        :avocado: tags=machine:virt
> +        """
> +        xen_url = ('https://deb.debian.org/debian/'
> +                   'pool/main/x/xen/'
> +                   
> 'xen-hypervisor-4.11-arm64_4.11.4+37-g3263f257ca-1_arm64.deb')
> +        xen_sha1 = '034e634d4416adbad1212d59b62bccdcda63e62a'

This URL is already giving 404s because of a new pacakge.  I found
this to work (but yeah, won't probably last long):

        xen_url = ('http://deb.debian.org/debian/'
                   'pool/main/x/xen/'
                   
'xen-hypervisor-4.11-arm64_4.11.4+57-g41a822c392-2_arm64.deb')
        xen_sha1 = 'b5a6810fc67fd50fa36afdfdfe88ce3153dd3a55'

> +        xen_deb = self.fetch_asset(xen_url, asset_hash=xen_sha1)
> +        xen_path = self.extract_from_deb(xen_deb, "/boot/xen-4.11-arm64")
> +
> +        self.launch_xen(xen_path)
> +
> +    @skipIf(os.getenv('GITLAB_CI'), 'Running on GitLab')
> +    def test_arm64_xen_414_and_dom0(self):
> +        """
> +        :avocado: tags=arch:aarch64
> +        :avocado: tags=accel:tcg
> +        :avocado: tags=cpu:cortex-a57
> +        :avocado: tags=machine:virt
> +        """
> +        xen_url = ('https://deb.debian.org/debian/'
> +                   'pool/main/x/xen/'
> +                   
> 'xen-hypervisor-4.14-arm64_4.14.0+80-gd101b417b7-1_arm64.deb')
> +        xen_sha1 = 'b9d209dd689ed2b393e625303a225badefec1160'

Likewise here:

        xen_url = ('https://deb.debian.org/debian/'
                   'pool/main/x/xen/'
                   
'xen-hypervisor-4.14-arm64_4.14.0+88-g1d1d1f5391-2_arm64.deb')
        xen_sha1 = 'f316049beaadd50482644e4955c4cdd63e3a07d5'

> +        xen_deb = self.fetch_asset(xen_url, asset_hash=xen_sha1)
> +        xen_path = self.extract_from_deb(xen_deb, "/boot/xen-4.14-arm64")
> +
> +        self.launch_xen(xen_path)
> +
> +    @skipIf(os.getenv('GITLAB_CI'), 'Running on GitLab')
> +    def test_arm64_xen_415_and_dom0(self):
> +        """
> +        :avocado: tags=arch:aarch64
> +        :avocado: tags=accel:tcg
> +        :avocado: tags=cpu:cortex-a57
> +        :avocado: tags=machine:virt
> +        """
> +
> +        xen_url = ('https://fileserver.linaro.org/'
> +                   's/JSsewXGZ6mqxPr5/download'
> +                   '?path=%2F&files=xen-upstream-4.15-unstable.deb')
> +        xen_sha1 = 'fc191172b85cf355abb95d275a24cc0f6d6579d8'
> +        xen_deb = self.fetch_asset(xen_url, asset_hash=xen_sha1)
> +        xen_path = self.extract_from_deb(xen_deb, "/boot/xen-4.15-unstable")
> +
> +        self.launch_xen(xen_path)
> -- 
> 2.20.1
> 
> 

With those changes,

Reviewed-by: Cleber Rosa <crosa@redhat.com>
Tested-by: Cleber Rosa <crosa@redhat.com>

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