[PATCH 4/4] test/avocado: test Linux boot up in x2APIC with userspace local APIC

[Bui Quang Minh]

Simple test to check Linux boot up in x2APIC with userspace local APIC and
TCG accelerator.

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"')
-- 
2.25.1