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. 10import os 11 12from avocado import skipUnless 13from avocado_qemu import BUILD_DIR 14from avocado_qemu.linuxtest import LinuxTest 15 16@skipUnless(os.getenv('QEMU_TEST_FLAKY_TESTS'), 'Test is unstable on GitLab') 17class 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,' + 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