tests/functional/test_virtio_balloon: Only use KVM for running this test

The virtio_balloon test is currently hanging for unknown reasons
when being run on the shared gitlab CI runners (which don't provide
KVM, thus it's running in TCG mode there). All other functional tests
that use the same asset (the Fedora 31 kernel) have already been
marked to work only with KVM in the past, so those other tests are
skipped on the shared gitlab CI runners. As long as the problem isn't
fully understood and fixed, let's do the same with the virtio_balloon
test to avoid that the CI is failing here.

Message-ID: <20250307063904.1081961-1-thuth@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>

diff --git a/tests/functional/test_virtio_balloon.py b/tests/functional/test_virtio_balloon.py
index 082bf08c4e87358b2c31b6062e9f6be990c19ca3..5877b6c408ca886b0b3db9b7251e6278d91b257f 100755 (executable)
--- a/tests/functional/test_virtio_balloon.py
+++ b/tests/functional/test_virtio_balloon.py
@@ -110,6 +110,7 @@ class VirtioBalloonx86(QemuSystemTest):
 
     def test_virtio_balloon_stats(self):
         self.set_machine('q35')
+        self.require_accelerator("kvm")
         kernel_path = self.ASSET_KERNEL.fetch()
         initrd_path = self.ASSET_INITRD.fetch()
         diskimage_path = self.ASSET_DISKIMAGE.fetch()
@@ -122,7 +123,7 @@ class VirtioBalloonx86(QemuSystemTest):
         # reset, we can reliably catch the clean stats again in BIOS
         # phase before the guest OS launches
         self.vm.add_args("-boot", "menu=on")
-        self.vm.add_args("-machine", "q35,accel=kvm:tcg")
+        self.vm.add_args("-accel", "kvm")
         self.vm.add_args("-device", "virtio-balloon,id=balloon")
         self.vm.add_args('-drive',
                          f'file={diskimage_path},if=none,id=drv0,snapshot=on')