| #!/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() |
