| 1 | #!/usr/bin/env python3 |
| 2 | # |
| 3 | # Functional tests for the IBM PPE42 processor |
| 4 | # |
| 5 | # Copyright (c) 2025, IBM Corporation |
| 6 | # |
| 7 | # SPDX-License-Identifier: GPL-2.0-or-later |
| 8 | |
| 9 | import asyncio |
| 10 | from qemu_test import QemuSystemTest, Asset |
| 11 | |
| 12 | |
| 13 | class Ppe42Machine(QemuSystemTest): |
| 14 | |
| 15 | timeout = 90 |
| 16 | poll_period = 1.0 |
| 17 | |
| 18 | ASSET_PPE42_TEST_IMAGE = Asset( |
| 19 | ('https://github.com/milesg-github/ppe42-tests/raw/refs/heads/main/' |
| 20 | 'images/ppe42-test.out'), |
| 21 | '03c1ac0fb7f6c025102a02776a93b35101dae7c14b75e4eab36a337e39042ea8') |
| 22 | |
| 23 | def _test_completed(self): |
| 24 | self.log.info("Checking for test completion...") |
| 25 | try: |
| 26 | output = self.vm.cmd('human-monitor-command', |
| 27 | command_line='info registers') |
| 28 | except Exception as err: |
| 29 | self.log.debug(f"'info registers' cmd failed due to {err=}," |
| 30 | " {type(err)=}") |
| 31 | raise |
| 32 | |
| 33 | self.log.info(output) |
| 34 | if "NIP fff80200" not in output: |
| 35 | self.log.info("<test not completed>") |
| 36 | return False |
| 37 | |
| 38 | self.log.info("<test completed>") |
| 39 | return True |
| 40 | |
| 41 | def _wait_pass_fail(self, timeout): |
| 42 | while not self._test_completed(): |
| 43 | if timeout >= self.poll_period: |
| 44 | timeout = timeout - self.poll_period |
| 45 | self.log.info(f"Waiting {self.poll_period} seconds for test" |
| 46 | " to complete...") |
| 47 | e = None |
| 48 | try: |
| 49 | e = self.vm.event_wait('STOP', self.poll_period) |
| 50 | |
| 51 | except asyncio.TimeoutError: |
| 52 | self.log.info("Poll period ended.") |
| 53 | |
| 54 | except Exception as err: |
| 55 | self.log.debug(f"event_wait() failed due to {err=}," |
| 56 | " {type(err)=}") |
| 57 | raise |
| 58 | |
| 59 | if e is not None: |
| 60 | self.log.debug(f"Execution stopped: {e}") |
| 61 | self.log.debug("Exiting due to test failure") |
| 62 | self.fail("Failure detected!") |
| 63 | else: |
| 64 | self.fail("Timed out waiting for test completion.") |
| 65 | |
| 66 | def test_ppe42_instructions(self): |
| 67 | self.set_machine('ppe42_machine') |
| 68 | self.require_accelerator("tcg") |
| 69 | image_path = self.ASSET_PPE42_TEST_IMAGE.fetch() |
| 70 | self.vm.add_args('-nographic') |
| 71 | self.vm.add_args('-device', f'loader,file={image_path}') |
| 72 | self.vm.add_args('-device', 'loader,addr=0xfff80040,cpu-num=0') |
| 73 | self.vm.add_args('-action', 'panic=pause') |
| 74 | self.vm.launch() |
| 75 | self._wait_pass_fail(self.timeout) |
| 76 | |
| 77 | if __name__ == '__main__': |
| 78 | QemuSystemTest.main() |