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#!/usr/bin/env python3
# Xilinx QEMU wrapper to launch both PMU and APU instances (multiarch)
import os
import subprocess
import sys
import tempfile
import shutil
binpath = os.path.dirname(os.path.abspath(__file__))
mach_path = tempfile.mkdtemp()
# Separate PMU and APU arguments
APU_args = sys.argv[1:]
PMU_args = APU_args[APU_args.index('-pmu-args')+1]
APU_args.remove('-pmu-args')
APU_args.remove(PMU_args)
PMU_args = PMU_args.split()
PMU_rom = PMU_args[PMU_args.index('-kernel')+1]
error_msg = None
if os.path.exists(PMU_rom):
# We need to switch tcp serial arguments (if they exist, e.g. qemurunner) to get the output correctly
tcp_serial_ports = [i for i, s in enumerate(APU_args) if 'tcp:127.0.0.1:' in s]
# We can only switch these if there are exactly two, otherwise we can't assume what is being executed so we leave it as is
if len(tcp_serial_ports) == 2:
APU_args[tcp_serial_ports[0]],APU_args[tcp_serial_ports[1]] = APU_args[tcp_serial_ports[1]],APU_args[tcp_serial_ports[0]]
pmu_cmd = binpath + '/qemu-system-microblazeel ' + ' '.join(PMU_args) + ' -machine-path ' + mach_path
apu_cmd = binpath + '/qemu-system-aarch64 ' + ' '.join(APU_args) + ' -machine-path ' + mach_path
# Debug prints
print('\nPMU instance cmd: %s\n' % pmu_cmd)
print('APU instance cmd: %s\n' % apu_cmd)
# Invoke QEMU pmu instance
process_pmu = subprocess.Popen(pmu_cmd, shell=True, stderr=subprocess.PIPE)
# Invoke QEMU APU instance
process_apu = subprocess.Popen(apu_cmd, shell=True, stderr=subprocess.PIPE)
if process_apu.wait():
error_msg = '\nQEMU APU instance failed:\n%s' % process_apu.stderr.read().decode()
else:
error_msg = '\nError: Missing PMU ROM: %s' % PMU_rom
error_msg += '\nSee "meta-xilinx/README.qemu.md" for more information on accquiring the PMU ROM.\n'
shutil.rmtree(mach_path)
sys.exit(error_msg)
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