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#!/usr/bin/env python3
#
# Functional tests for the IBM PPE42 processor
#
# Copyright (c) 2025, IBM Corporation
#
# SPDX-License-Identifier: GPL-2.0-or-later
from qemu_test import QemuSystemTest, Asset
import asyncio
class Ppe42Machine(QemuSystemTest):
timeout = 90
poll_period = 1.0
ASSET_PPE42_TEST_IMAGE = Asset(
('https://github.com/milesg-github/ppe42-tests/raw/refs/heads/main/'
'images/ppe42-test.out'),
'03c1ac0fb7f6c025102a02776a93b35101dae7c14b75e4eab36a337e39042ea8')
def _test_completed(self):
self.log.info("Checking for test completion...")
try:
output = self.vm.cmd('human-monitor-command',
command_line='info registers')
except Exception as err:
self.log.debug(f"'info registers' cmd failed due to {err=},"
" {type(err)=}")
raise
self.log.info(output)
if "NIP fff80200" in output:
self.log.info("<test completed>")
return True
else:
self.log.info("<test not completed>")
return False
def _wait_pass_fail(self, timeout):
while not self._test_completed():
if timeout >= self.poll_period:
timeout = timeout - self.poll_period
self.log.info(f"Waiting {self.poll_period} seconds for test"
" to complete...")
e = None
try:
e = self.vm.event_wait('STOP', self.poll_period)
except asyncio.TimeoutError:
self.log.info("Poll period ended.")
pass
except Exception as err:
self.log.debug(f"event_wait() failed due to {err=},"
" {type(err)=}")
raise
if e != None:
self.log.debug(f"Execution stopped: {e}")
self.log.debug("Exiting due to test failure")
self.fail("Failure detected!")
break
else:
self.fail("Timed out waiting for test completion.")
def test_ppe42_instructions(self):
self.set_machine('ppe42_machine')
self.require_accelerator("tcg")
image_path = self.ASSET_PPE42_TEST_IMAGE.fetch()
self.vm.add_args('-nographic')
self.vm.add_args('-device', f'loader,file={image_path}')
self.vm.add_args('-device', 'loader,addr=0xfff80040,cpu-num=0')
self.vm.add_args('-action', 'panic=pause')
self.vm.launch()
self._wait_pass_fail(self.timeout)
if __name__ == '__main__':
QemuSystemTest.main()
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