cachepc-qemu

Fork of AMDESE/qemu with changes for cachepc side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-qemu
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machine_m68k_nextcube.py (2970B)

      1# Functional test that boots a VM and run OCR on the framebuffer
      2#
      3# Copyright (c) 2019 Philippe Mathieu-Daudé <f4bug@amsat.org>
      4#
      5# This work is licensed under the terms of the GNU GPL, version 2 or
      6# later.  See the COPYING file in the top-level directory.
      7
      8import os
      9import time
     10
     11from avocado_qemu import Test
     12from avocado import skipUnless
     13
     14from tesseract_utils import tesseract_available, tesseract_ocr
     15
     16PIL_AVAILABLE = True
     17try:
     18    from PIL import Image
     19except ImportError:
     20    PIL_AVAILABLE = False
     21
     22
     23class NextCubeMachine(Test):
     24    """
     25    :avocado: tags=arch:m68k
     26    :avocado: tags=machine:next-cube
     27    :avocado: tags=device:framebuffer
     28    """
     29
     30    timeout = 15
     31
     32    def check_bootrom_framebuffer(self, screenshot_path):
     33        rom_url = ('http://www.nextcomputers.org/NeXTfiles/Software/ROM_Files/'
     34                   '68040_Non-Turbo_Chipset/Rev_2.5_v66.BIN')
     35        rom_hash = 'b3534796abae238a0111299fc406a9349f7fee24'
     36        rom_path = self.fetch_asset(rom_url, asset_hash=rom_hash)
     37
     38        self.vm.add_args('-bios', rom_path)
     39        self.vm.launch()
     40
     41        self.log.info('VM launched, waiting for display')
     42        # TODO: Use avocado.utils.wait.wait_for to catch the
     43        #       'displaysurface_create 1120x832' trace-event.
     44        time.sleep(2)
     45
     46        self.vm.command('human-monitor-command',
     47                        command_line='screendump %s' % screenshot_path)
     48
     49    @skipUnless(PIL_AVAILABLE, 'Python PIL not installed')
     50    def test_bootrom_framebuffer_size(self):
     51        screenshot_path = os.path.join(self.workdir, "dump.ppm")
     52        self.check_bootrom_framebuffer(screenshot_path)
     53
     54        width, height = Image.open(screenshot_path).size
     55        self.assertEqual(width, 1120)
     56        self.assertEqual(height, 832)
     57
     58    @skipUnless(tesseract_available(3), 'tesseract v3 OCR tool not available')
     59    def test_bootrom_framebuffer_ocr_with_tesseract_v3(self):
     60        screenshot_path = os.path.join(self.workdir, "dump.ppm")
     61        self.check_bootrom_framebuffer(screenshot_path)
     62        lines = tesseract_ocr(screenshot_path, tesseract_version=3)
     63        text = '\n'.join(lines)
     64        self.assertIn('Backplane', text)
     65        self.assertIn('Ethernet address', text)
     66
     67    # Tesseract 4 adds a new OCR engine based on LSTM neural networks. The
     68    # new version is faster and more accurate than version 3. The drawback is
     69    # that it is still alpha-level software.
     70    @skipUnless(tesseract_available(4), 'tesseract v4 OCR tool not available')
     71    def test_bootrom_framebuffer_ocr_with_tesseract_v4(self):
     72        screenshot_path = os.path.join(self.workdir, "dump.ppm")
     73        self.check_bootrom_framebuffer(screenshot_path)
     74        lines = tesseract_ocr(screenshot_path, tesseract_version=4)
     75        text = '\n'.join(lines)
     76        self.assertIn('Testing the FPU, SCC', text)
     77        self.assertIn('System test failed. Error code', text)
     78        self.assertIn('Boot command', text)
     79        self.assertIn('Next>', text)