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migrate_with_virtual_devices: fix rng check method #6071

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merged 1 commit into from
Dec 19, 2024
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migrate_with_virtual_devices: fix rng check method #6071

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10 changes: 5 additions & 5 deletions libvirt/tests/src/migration/migrate_with_virtual_devices.py
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Original file line number Diff line number Diff line change
Expand Up @@ -552,21 +552,21 @@ def check_rng_in_vm(vm, backend_type, rng_present):
"""

logging.debug("Check rng device in vm")
check_cmd = "dd if=/dev/hwrng of=/dev/null count=2 bs=2"
check_cmd = "cat /sys/devices/virtual/misc/hw_random/rng_available"
timeout = 10

try:
status, output = vm.session.cmd_status_output(check_cmd, timeout)
logging.debug("cmd exit status: %s, cmd output: %s",
logging.debug("cmd exit status: %s, current rng available: %s",
status, output)

if status == 0:
status = True if output.count("virtio_rng") else False
if status is True:
if rng_present:
return
else:
raise DeviceNotRemovedError("rng")
else:
if not rng_present and "No such device" in output:
if not rng_present:
return
elif rng_present:
raise DeviceNotFoundError("rng")
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