xref: /openbmc/qemu/tests/avocado/smmu.py (revision d6b5c4c1b516a8176b74ec35a0af8cf89b04b6c1)
1 # SMMUv3 Functional tests
2 #
3 # Copyright (c) 2021 Red Hat, Inc.
4 #
5 # Author:
6 #  Eric Auger <eric.auger@redhat.com>
7 #
8 # This work is licensed under the terms of the GNU GPL, version 2 or
9 # later.  See the COPYING file in the top-level directory.
10 import os
11 
12 from avocado import skipUnless
13 from avocado_qemu import LinuxTest, BUILD_DIR
14 
15 @skipUnless(os.getenv('QEMU_TEST_FLAKY_TESTS'), 'Test is unstable on GitLab')
16 
17 class SMMU(LinuxTest):
18     """
19     :avocado: tags=accel:kvm
20     :avocado: tags=cpu:host
21     :avocado: tags=arch:aarch64
22     :avocado: tags=machine:virt
23     :avocado: tags=distro:fedora
24     :avocado: tags=smmu
25     :avocado: tags=flaky
26     """
27 
28     IOMMU_ADDON = ',iommu_platform=on,disable-modern=off,disable-legacy=on'
29     kernel_path = None
30     initrd_path = None
31     kernel_params = None
32 
33     def set_up_boot(self):
34         path = self.download_boot()
35         self.vm.add_args('-device', 'virtio-blk-pci,bus=pcie.0,scsi=off,' +
36                          'drive=drv0,id=virtio-disk0,bootindex=1,'
37                          'werror=stop,rerror=stop' + self.IOMMU_ADDON)
38         self.vm.add_args('-drive',
39                          'file=%s,if=none,cache=writethrough,id=drv0' % path)
40 
41     def setUp(self):
42         super(SMMU, self).setUp(None, 'virtio-net-pci' + self.IOMMU_ADDON)
43 
44     def common_vm_setup(self, custom_kernel=False):
45         self.require_accelerator("kvm")
46         self.vm.add_args("-accel", "kvm")
47         self.vm.add_args("-cpu", "host")
48         self.vm.add_args("-machine", "iommu=smmuv3")
49         self.vm.add_args("-d", "guest_errors")
50         self.vm.add_args('-bios', os.path.join(BUILD_DIR, 'pc-bios',
51                          'edk2-aarch64-code.fd'))
52         self.vm.add_args('-device', 'virtio-rng-pci,rng=rng0')
53         self.vm.add_args('-object',
54                          'rng-random,id=rng0,filename=/dev/urandom')
55 
56         if custom_kernel is False:
57             return
58 
59         kernel_url = self.distro.pxeboot_url + 'vmlinuz'
60         initrd_url = self.distro.pxeboot_url + 'initrd.img'
61         self.kernel_path = self.fetch_asset(kernel_url)
62         self.initrd_path = self.fetch_asset(initrd_url)
63 
64     def run_and_check(self):
65         if self.kernel_path:
66             self.vm.add_args('-kernel', self.kernel_path,
67                              '-append', self.kernel_params,
68                              '-initrd', self.initrd_path)
69         self.launch_and_wait()
70         self.ssh_command('cat /proc/cmdline')
71         self.ssh_command('dnf -y install numactl-devel')
72 
73 
74     # 5.3 kernel without RIL #
75 
76     def test_smmu_noril(self):
77         """
78         :avocado: tags=smmu_noril
79         :avocado: tags=smmu_noril_tests
80         :avocado: tags=distro_version:31
81         """
82         self.common_vm_setup()
83         self.run_and_check()
84 
85     def test_smmu_noril_passthrough(self):
86         """
87         :avocado: tags=smmu_noril_passthrough
88         :avocado: tags=smmu_noril_tests
89         :avocado: tags=distro_version:31
90         """
91         self.common_vm_setup(True)
92         self.kernel_params = (self.distro.default_kernel_params +
93                               ' iommu.passthrough=on')
94         self.run_and_check()
95 
96     def test_smmu_noril_nostrict(self):
97         """
98         :avocado: tags=smmu_noril_nostrict
99         :avocado: tags=smmu_noril_tests
100         :avocado: tags=distro_version:31
101         """
102         self.common_vm_setup(True)
103         self.kernel_params = (self.distro.default_kernel_params +
104                               ' iommu.strict=0')
105         self.run_and_check()
106 
107     # 5.8 kernel featuring range invalidation
108     # >= v5.7 kernel
109 
110     def test_smmu_ril(self):
111         """
112         :avocado: tags=smmu_ril
113         :avocado: tags=smmu_ril_tests
114         :avocado: tags=distro_version:33
115         """
116         self.common_vm_setup()
117         self.run_and_check()
118 
119     def test_smmu_ril_passthrough(self):
120         """
121         :avocado: tags=smmu_ril_passthrough
122         :avocado: tags=smmu_ril_tests
123         :avocado: tags=distro_version:33
124         """
125         self.common_vm_setup(True)
126         self.kernel_params = (self.distro.default_kernel_params +
127                               ' iommu.passthrough=on')
128         self.run_and_check()
129 
130     def test_smmu_ril_nostrict(self):
131         """
132         :avocado: tags=smmu_ril_nostrict
133         :avocado: tags=smmu_ril_tests
134         :avocado: tags=distro_version:33
135         """
136         self.common_vm_setup(True)
137         self.kernel_params = (self.distro.default_kernel_params +
138                               ' iommu.strict=0')
139         self.run_and_check()
140