diff --git a/MAINTAINERS b/MAINTAINERS
index a800b766d3..79df59d05c 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -3682,6 +3682,7 @@ S: Supported
 F: hw/i386/intel_iommu.c
 F: hw/i386/intel_iommu_internal.h
 F: include/hw/i386/intel_iommu.h
+F: tests/functional/test_intel_iommu.py
 
 AMD-Vi Emulation
 S: Orphan
diff --git a/tests/functional/meson.build b/tests/functional/meson.build
index fb13d67e7f..054c5f85fb 100644
--- a/tests/functional/meson.build
+++ b/tests/functional/meson.build
@@ -31,6 +31,7 @@ test_timeouts = {
   'arm_raspi2' : 120,
   'arm_tuxrun' : 240,
   'arm_sx1' : 360,
+  'intel_iommu': 300,
   'mips_malta' : 120,
   'netdev_ethtool' : 180,
   'ppc_40p' : 240,
@@ -248,6 +249,7 @@ tests_x86_64_system_quick = [
 
 tests_x86_64_system_thorough = [
   'acpi_bits',
+  'intel_iommu',
   'linux_initrd',
   'multiprocess',
   'netdev_ethtool',
diff --git a/tests/avocado/intel_iommu.py b/tests/functional/test_intel_iommu.py
old mode 100644
new mode 100755
similarity index 26%
rename from tests/avocado/intel_iommu.py
rename to tests/functional/test_intel_iommu.py
index 992583fa7d..a9e8f82ab5
--- a/tests/avocado/intel_iommu.py
+++ b/tests/functional/test_intel_iommu.py
@@ -1,3 +1,5 @@
+#!/usr/bin/env python3
+#
 # INTEL_IOMMU Functional tests
 #
 # Copyright (c) 2021 Red Hat, Inc.
@@ -7,116 +9,167 @@
 #
 # 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 skipUnless
-from avocado_qemu.linuxtest import LinuxTest
-
-@skipUnless(os.getenv('QEMU_TEST_FLAKY_TESTS'), 'Test is unstable on GitLab')
-class IntelIOMMU(LinuxTest):
-    """
-    :avocado: tags=arch:x86_64
-    :avocado: tags=distro:fedora
-    :avocado: tags=distro_version:31
-    :avocado: tags=machine:q35
-    :avocado: tags=accel:kvm
-    :avocado: tags=intel_iommu
-    :avocado: tags=flaky
-    """
 
+import hashlib
+import urllib.request
+
+from qemu_test import LinuxKernelTest, Asset, exec_command_and_wait_for_pattern
+from qemu_test.utils import get_usernet_hostfwd_port
+
+
+class IntelIOMMU(LinuxKernelTest):
+
+    ASSET_KERNEL = Asset(
+        ('https://archives.fedoraproject.org/pub/archive/fedora/linux/releases'
+         '/31/Server/x86_64/os/images/pxeboot/vmlinuz'),
+        'd4738d03dbbe083ca610d0821d0a8f1488bebbdccef54ce33e3adb35fda00129')
+
+    ASSET_INITRD = Asset(
+        ('https://archives.fedoraproject.org/pub/archive/fedora/linux/releases'
+         '/31/Server/x86_64/os/images/pxeboot/initrd.img'),
+        '277cd6c7adf77c7e63d73bbb2cded8ef9e2d3a2f100000e92ff1f8396513cd8b')
+
+    ASSET_DISKIMAGE = Asset(
+        ('https://archives.fedoraproject.org/pub/archive/fedora/linux/releases'
+         '/31/Cloud/x86_64/images/Fedora-Cloud-Base-31-1.9.x86_64.qcow2'),
+        'e3c1b309d9203604922d6e255c2c5d098a309c2d46215d8fc026954f3c5c27a0')
+
+    DEFAULT_KERNEL_PARAMS = ('root=/dev/vda1 console=ttyS0 net.ifnames=0 '
+                             'quiet rd.rescue ')
+    GUEST_PORT = 8080
     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()
+    def add_common_args(self, path):
+        self.vm.add_args('-drive', f'file={path},if=none,id=drv0,snapshot=on')
         self.vm.add_args('-device', 'virtio-blk-pci,bus=pcie.0,' +
                          '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(IntelIOMMU, self).setUp(None, 'virtio-net-pci' + self.IOMMU_ADDON)
+        self.vm.add_args('-netdev',
+                         'user,id=n1,hostfwd=tcp:127.0.0.1:0-:%d' %
+                         self.GUEST_PORT)
+        self.vm.add_args('-device',
+                         'virtio-net-pci,netdev=n1' + 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("kvm")
-        self.add_common_args()
+        self.vm.add_args("-m", "1G")
         self.vm.add_args("-accel", "kvm")
 
-        if custom_kernel is None:
-            return
+    def common_vm_setup(self):
+        self.set_machine('q35')
+        self.require_accelerator("kvm")
+        self.require_netdev('user')
 
-        kernel_url = self.distro.pxeboot_url + 'vmlinuz'
-        kernel_hash = '5b6f6876e1b5bda314f93893271da0d5777b1f3c'
-        initrd_url = self.distro.pxeboot_url + 'initrd.img'
-        initrd_hash = 'dd0340a1b39bd28f88532babd4581c67649ec5b1'
-        self.kernel_path = self.fetch_asset(kernel_url, asset_hash=kernel_hash)
-        self.initrd_path = self.fetch_asset(initrd_url, asset_hash=initrd_hash)
+        self.kernel_path = self.ASSET_KERNEL.fetch()
+        self.initrd_path = self.ASSET_INITRD.fetch()
+        image_path = self.ASSET_DISKIMAGE.fetch()
+        self.add_common_args(image_path)
+        self.kernel_params = self.DEFAULT_KERNEL_PARAMS
 
     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 -e DMAR -e IOMMU')
-        self.ssh_command('find /sys/kernel/iommu_groups/ -type l')
-        self.ssh_command('dnf -y install numactl-devel')
+        self.vm.set_console()
+        self.vm.launch()
+        self.wait_for_console_pattern('Entering emergency mode.')
+        prompt = '# '
+        self.wait_for_console_pattern(prompt)
+
+        # Copy a file (checked later), umount afterwards to drop disk cache:
+        exec_command_and_wait_for_pattern(self, 'mount /dev/vda1 /sysroot',
+                                          prompt)
+        filename = '/boot/initramfs-5.3.7-301.fc31.x86_64.img'
+        exec_command_and_wait_for_pattern(self, (f'cp /sysroot{filename}'
+                                                 ' /sysroot/root/data'),
+                                          prompt)
+        exec_command_and_wait_for_pattern(self, 'umount /sysroot', prompt)
+
+        # Switch from initrd to the cloud image filesystem:
+        exec_command_and_wait_for_pattern(self, 'mount /dev/vda1 /sysroot',
+                                          prompt)
+        exec_command_and_wait_for_pattern(self,
+                ('for d in dev proc sys run ; do '
+                 'mount -o bind /$d /sysroot/$d ; done'), prompt)
+        exec_command_and_wait_for_pattern(self, 'chroot /sysroot', prompt)
+
+        # Checking for IOMMU enablement:
+        self.log.info("Checking whether IOMMU has been enabled...")
+        exec_command_and_wait_for_pattern(self, 'cat /proc/cmdline',
+                                          'intel_iommu=on')
+        self.wait_for_console_pattern(prompt)
+        exec_command_and_wait_for_pattern(self, 'dmesg | grep DMAR:',
+                                          'IOMMU enabled')
+        self.wait_for_console_pattern(prompt)
+        exec_command_and_wait_for_pattern(self,
+                                    'find /sys/kernel/iommu_groups/ -type l',
+                                    'devices/0000:00:')
+        self.wait_for_console_pattern(prompt)
+
+        # Check hard disk device via sha256sum:
+        self.log.info("Checking hard disk...")
+        hashsum = '0dc7472f879be70b2f3daae279e3ae47175ffe249691e7d97f47222b65b8a720'
+        exec_command_and_wait_for_pattern(self, 'sha256sum ' + filename,
+                                          hashsum)
+        self.wait_for_console_pattern(prompt)
+        exec_command_and_wait_for_pattern(self, 'sha256sum /root/data',
+                                          hashsum)
+        self.wait_for_console_pattern(prompt)
+
+        # Check virtio-net via HTTP:
+        exec_command_and_wait_for_pattern(self, 'dhclient eth0', prompt)
+        exec_command_and_wait_for_pattern(self,
+                        f'python3 -m http.server {self.GUEST_PORT} & sleep 1',
+                        f'Serving HTTP on 0.0.0.0 port {self.GUEST_PORT}')
+        hl = hashlib.sha256()
+        hostport = get_usernet_hostfwd_port(self.vm)
+        url = f'http://localhost:{hostport}{filename}'
+        self.log.info(f'Downloading {url} ...')
+        with urllib.request.urlopen(url) as response:
+            while True:
+                chunk = response.read(1 << 20)
+                if not chunk:
+                    break
+                hl.update(chunk)
+
+        digest = hl.hexdigest()
+        self.log.info(f'sha256sum of download is {digest}.')
+        self.assertEqual(digest, hashsum)
 
     def test_intel_iommu(self):
-        """
-        :avocado: tags=intel_iommu_intremap
-        """
-
-        self.common_vm_setup(True)
+        self.common_vm_setup()
         self.vm.add_args('-device', 'intel-iommu,intremap=on')
         self.vm.add_args('-machine', 'kernel_irqchip=split')
-
-        self.kernel_params = (self.distro.default_kernel_params +
-                              ' quiet intel_iommu=on')
+        self.kernel_params += 'intel_iommu=on'
         self.run_and_check()
 
     def test_intel_iommu_strict(self):
-        """
-        :avocado: tags=intel_iommu_strict
-        """
-
-        self.common_vm_setup(True)
+        self.common_vm_setup()
         self.vm.add_args('-device', 'intel-iommu,intremap=on')
         self.vm.add_args('-machine', 'kernel_irqchip=split')
-        self.kernel_params = (self.distro.default_kernel_params +
-                              ' quiet intel_iommu=on,strict')
+        self.kernel_params += 'intel_iommu=on,strict'
         self.run_and_check()
 
     def test_intel_iommu_strict_cm(self):
-        """
-        :avocado: tags=intel_iommu_strict_cm
-        """
-
-        self.common_vm_setup(True)
+        self.common_vm_setup()
         self.vm.add_args('-device', 'intel-iommu,intremap=on,caching-mode=on')
         self.vm.add_args('-machine', 'kernel_irqchip=split')
-        self.kernel_params = (self.distro.default_kernel_params +
-                              ' quiet intel_iommu=on,strict')
+        self.kernel_params += 'intel_iommu=on,strict'
         self.run_and_check()
 
     def test_intel_iommu_pt(self):
-        """
-        :avocado: tags=intel_iommu_pt
-        """
-
-        self.common_vm_setup(True)
+        self.common_vm_setup()
         self.vm.add_args('-device', 'intel-iommu,intremap=on')
         self.vm.add_args('-machine', 'kernel_irqchip=split')
-        self.kernel_params = (self.distro.default_kernel_params +
-                              ' quiet intel_iommu=on iommu=pt')
+        self.kernel_params += 'intel_iommu=on iommu=pt'
         self.run_and_check()
+
+if __name__ == '__main__':
+    LinuxKernelTest.main()
