blob: 0e3bc8f4eadb1d13e2ba63580fd43601b4803256 [file] [log] [blame]
# Copyright 2019 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""Implements commands for running and interacting with Fuchsia on AEMU."""
import os
import platform
import qemu_target
import logging
from common import GetEmuRootForPlatform
class AemuTarget(qemu_target.QemuTarget):
def __init__(self, output_dir, target_cpu, system_log_file, emu_type,
cpu_cores, require_kvm, ram_size_mb, enable_graphics,
super(AemuTarget, self).__init__(output_dir, target_cpu, system_log_file,
emu_type, cpu_cores, require_kvm,
# TODO( Enable AEMU for arm64.
if platform.machine() == 'aarch64':
raise Exception('AEMU does not support arm64 hosts.')
self._enable_graphics = enable_graphics
self._hardware_gpu = hardware_gpu
def _EnsureEmulatorExists(self, path):
assert os.path.exists(path), \
'This checkout is missing %s.' % (self._emu_type)
def _BuildCommand(self):
aemu_folder = GetEmuRootForPlatform(self._emu_type)
aemu_path = os.path.join(aemu_folder, 'emulator')
# `VirtioInput` is needed for touch input device support on Fuchsia.
# `RefCountPipe` is needed for proper cleanup of resources when a process
# that uses Vulkan dies inside the guest
aemu_features = 'VirtioInput,RefCountPipe'
# Configure the CPU to emulate.
# On Linux, we can enable lightweight virtualization (KVM) if the host and
# guest architectures are the same.
if self._IsKvmEnabled():
aemu_features += ',KVM,GLDirectMem,Vulkan'
if self._target_cpu != 'arm64':
aemu_features += ',-GLDirectMem'
# Use Swiftshader for Vulkan if requested
gpu_target = 'swiftshader_indirect'
if self._hardware_gpu:
gpu_target = 'host'
aemu_command = [aemu_path]
if not self._enable_graphics:
# All args after -fuchsia flag gets passed to QEMU
'-feature', aemu_features, '-window-size', '1024x600', '-gpu',
gpu_target, '-fuchsia'
'-vga', 'none',
'-device', 'isa-debug-exit,iobase=0xf4,iosize=0x04',
'-device', 'virtio-keyboard-pci',
'-device', 'virtio_input_multi_touch_pci_1',
'-device', 'ich9-ahci,id=ahci'])' '.join(aemu_command))
return aemu_command