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Re: [PATCH 4/4] test/avocado: test Linux boot up in x2APIC with userspac
From: |
Igor Mammedov |
Subject: |
Re: [PATCH 4/4] test/avocado: test Linux boot up in x2APIC with userspace local APIC |
Date: |
Tue, 7 Mar 2023 12:39:22 +0100 |
On Tue, 21 Feb 2023 23:05:00 +0700
Bui Quang Minh <minhquangbui99@gmail.com> wrote:
> Simple test to check Linux boot up in x2APIC with userspace local APIC and
> TCG accelerator.
just an idea, while booting linux would give some coverage,
we probably would get much better coverage by using apic test case
from kvm unit test:
https://gitlab.com/kvm-unit-tests/kvm-unit-tests/-/blob/master/x86/apic.c
>
> Signed-off-by: Bui Quang Minh <minhquangbui99@gmail.com>
> ---
> tests/avocado/tcg_x2apic.py | 91 +++++++++++++++++++++++++++++++++++++
> 1 file changed, 91 insertions(+)
> create mode 100644 tests/avocado/tcg_x2apic.py
>
> diff --git a/tests/avocado/tcg_x2apic.py b/tests/avocado/tcg_x2apic.py
> new file mode 100644
> index 0000000000..ff4f27017c
> --- /dev/null
> +++ b/tests/avocado/tcg_x2apic.py
> @@ -0,0 +1,91 @@
> +# x2APIC with TCG accelerator tests
> +# Based on intel_iommu.py, INTEL_IOMMU Functional tests
> +#
> +# Copyright (c) Bui Quang Minh <minhquangbui99@gmail.com>
> +#
> +# 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 LinuxTest
> +
> +@skipIf(os.getenv('GITLAB_CI'), 'Running on GitLab')
> +class TCGx2APIC(LinuxTest):
> + """
> + :avocado: tags=arch:x86_64
> + :avocado: tags=distro:fedora
> + :avocado: tags=distro_version:31
> + :avocado: tags=machine:q35
> + :avocado: tags=accel:tcg
> + :avocado: tags=x2apic
> + """
> +
> + IOMMU_ADDON = ',iommu_platform=on,disable-modern=off,disable-legacy=on'
> + kernel_path = None
> + initrd_path = None
> + kernel_params = None
> +
> + def set_up_boot(self):
> + path = self.download_boot()
> + self.vm.add_args('-device', 'virtio-blk-pci,bus=pcie.0,scsi=off,' +
> + 'drive=drv0,id=virtio-disk0,bootindex=1,'
> + 'werror=stop,rerror=stop' + self.IOMMU_ADDON)
> + self.vm.add_args('-device', 'virtio-gpu-pci' + self.IOMMU_ADDON)
> + self.vm.add_args('-drive',
> + 'file=%s,if=none,cache=writethrough,id=drv0' % path)
> +
> + def setUp(self):
> + super(TCGx2APIC, self).setUp(None, 'virtio-net-pci' +
> self.IOMMU_ADDON)
> +
> + def add_common_args(self):
> + self.vm.add_args('-device', 'virtio-rng-pci,rng=rng0')
> + self.vm.add_args('-object',
> + 'rng-random,id=rng0,filename=/dev/urandom')
> +
> + def common_vm_setup(self, custom_kernel=None):
> + self.require_accelerator('tcg')
> + self.add_common_args()
> + self.vm.add_args('-accel', 'tcg')
> + self.vm.add_args('-device', 'intel-iommu,intremap=on,eim=on')
> + self.vm.add_args('-cpu', 'qemu64,+x2apic')
> +
> + if custom_kernel is None:
> + return
> +
> + kernel_url = self.distro.pxeboot_url + 'vmlinuz'
> + initrd_url = self.distro.pxeboot_url + 'initrd.img'
> + self.kernel_path = self.fetch_asset(kernel_url)
> + self.initrd_path = self.fetch_asset(initrd_url)
> +
> + def run_and_check(self):
> + if self.kernel_path:
> + self.vm.add_args('-kernel', self.kernel_path,
> + '-append', self.kernel_params,
> + '-initrd', self.initrd_path)
> + self.launch_and_wait()
> + self.ssh_command('cat /proc/cmdline')
> + self.ssh_command('dmesg | grep "x2apic enabled"')
> +
> + def test_physical_x2apic(self):
> + """
> + :avocado: tags=physical_x2apic
> + """
> +
> + self.common_vm_setup(True)
> +
> + self.kernel_params = (self.distro.default_kernel_params +
> + ' quiet intel_iommu=on x2apic_phys')
> + self.run_and_check()
> + self.ssh_command('dmesg | grep "Switched APIC routing to physical
> x2apic"')
> +
> + def test_cluster_x2apic(self):
> + """
> + :avocado: tags=cluster_x2apic
> + """
> +
> + self.common_vm_setup(True)
> + self.kernel_params = (self.distro.default_kernel_params +
> + ' quiet intel_iommu=on')
> + self.run_and_check()
> + self.ssh_command('dmesg | grep "Switched APIC routing to cluster
> x2apic"')