From 083470b579bd7587bf2ecf479eced8ef6103614c Mon Sep 17 00:00:00 2001 From: Cornelia Huck Date: Mon, 30 Nov 2020 19:02:14 +0100 Subject: [PATCH] tests/acceptance: test virtio-ccw revision handling The max_revision prop of virtio-ccw devices can be used to force an older revision for compatibility handling. The easiest way to check this is to force a device to revision 0, which turns off virtio-1. Signed-off-by: Cornelia Huck [re-formatted overlong lines] Reviewed-by: Thomas Huth Reviewed-by: Wainer dos Santos Moschetta Message-Id: <20201130180216.15366-2-cohuck@redhat.com> --- tests/acceptance/machine_s390_ccw_virtio.py | 20 ++++++++++++++++++-- 1 file changed, 18 insertions(+), 2 deletions(-) diff --git a/tests/acceptance/machine_s390_ccw_virtio.py b/tests/acceptance/machine_s390_ccw_virtio.py index db6352c444..c681271972 100644 --- a/tests/acceptance/machine_s390_ccw_virtio.py +++ b/tests/acceptance/machine_s390_ccw_virtio.py @@ -51,6 +51,10 @@ class S390CCWVirtioMachine(Test): '-initrd', initrd_path, '-append', kernel_command_line, '-device', 'virtio-net-ccw,devno=fe.1.1111', + '-device', + 'virtio-rng-ccw,devno=fe.2.0000,max_revision=0', + '-device', + 'virtio-rng-ccw,devno=fe.3.1234,max_revision=2', '-device', 'zpci,uid=5,target=zzz', '-device', 'virtio-net-pci,id=zzz') self.vm.launch() @@ -60,9 +64,21 @@ class S390CCWVirtioMachine(Test): # first debug shell is too early, we need to wait for device detection exec_command_and_wait_for_pattern(self, 'exit', shell_ready) - ccw_bus_id="0.1.1111" + ccw_bus_ids="0.1.1111 0.2.0000 0.3.1234" pci_bus_id="0005:00:00.0" exec_command_and_wait_for_pattern(self, 'ls /sys/bus/ccw/devices/', - ccw_bus_id) + ccw_bus_ids) exec_command_and_wait_for_pattern(self, 'ls /sys/bus/pci/devices/', pci_bus_id) + # check that the device at 0.2.0000 is in legacy mode, while the + # device at 0.3.1234 has the virtio-1 feature bit set + virtio_rng_features="00000000000000000000000000001100" + \ + "10000000000000000000000000000000" + virtio_rng_features_legacy="00000000000000000000000000001100" + \ + "00000000000000000000000000000000" + exec_command_and_wait_for_pattern(self, + 'cat /sys/bus/ccw/devices/0.2.0000/virtio?/features', + virtio_rng_features_legacy) + exec_command_and_wait_for_pattern(self, + 'cat /sys/bus/ccw/devices/0.3.1234/virtio?/features', + virtio_rng_features)