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/*
* Copyright (C) 2018 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "host/libs/vm_manager/qemu_manager.h"
#include <string.h>
#include <sys/socket.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <sys/un.h>
#include <sys/wait.h>
#include <unistd.h>
#include <cstdlib>
#include <sstream>
#include <string>
#include <thread>
#include <vector>
#include <glog/logging.h>
#include "common/libs/fs/shared_select.h"
#include "common/libs/utils/files.h"
#include "common/libs/utils/subprocess.h"
#include "common/libs/utils/users.h"
#include "host/libs/config/cuttlefish_config.h"
namespace vm_manager {
namespace {
std::string GetMonitorPath(const vsoc::CuttlefishConfig* config) {
return config->PerInstanceInternalPath("qemu_monitor.sock");
}
void LogAndSetEnv(const char* key, const std::string& value) {
setenv(key, value.c_str(), 1);
LOG(INFO) << key << "=" << value;
}
std::string JoinString(const std::vector<std::string>& args,
const std::string& delim) {
bool first = true;
std::stringstream output;
for (const auto& arg : args) {
if (first) {
first = false;
} else {
output << delim;
}
output << arg;
}
return output.str();
}
bool Stop() {
auto config = vsoc::CuttlefishConfig::Get();
auto monitor_path = GetMonitorPath(config);
auto monitor_sock = cvd::SharedFD::SocketLocalClient(
monitor_path.c_str(), false, SOCK_STREAM);
if (!monitor_sock->IsOpen()) {
LOG(ERROR) << "The connection to qemu is closed, is it still running?";
return false;
}
char msg[] = "{\"execute\":\"qmp_capabilities\"}{\"execute\":\"quit\"}";
ssize_t len = sizeof(msg) - 1;
while (len > 0) {
int tmp = monitor_sock->Write(msg, len);
if (tmp < 0) {
LOG(ERROR) << "Error writing to socket: " << monitor_sock->StrError();
return false;
}
len -= tmp;
}
// Log the reply
char buff[1000];
while ((len = monitor_sock->Read(buff, sizeof(buff) - 1)) > 0) {
buff[len] = '\0';
LOG(INFO) << "From qemu monitor: " << buff;
}
return true;
}
} // namespace
const std::string QemuManager::name() { return "qemu_cli"; }
bool QemuManager::ConfigureGpu(vsoc::CuttlefishConfig *config) {
if (config->gpu_mode() != vsoc::kGpuModeGuestSwiftshader) {
return false;
}
// Override the default HAL search paths in all cases. We do this because
// the HAL search path allows for fallbacks, and fallbacks in conjunction
// with properities lead to non-deterministic behavior while loading the
// HALs.
config->add_kernel_cmdline("androidboot.hardware.gralloc=cutf_ashmem");
config->add_kernel_cmdline(
"androidboot.hardware.hwcomposer=cutf_ivsh_ashmem");
config->add_kernel_cmdline(
"androidboot.hardware.egl=swiftshader");
return true;
}
void QemuManager::ConfigureBootDevices(vsoc::CuttlefishConfig* config) {
// PCI domain 0, bus 0, device 3, function 0
// This is controlled with 'addr=0x3' in cf_qemu.sh
config->add_kernel_cmdline(
"androidboot.boot_devices=pci0000:00/0000:00:03.0");
}
QemuManager::QemuManager(const vsoc::CuttlefishConfig* config)
: VmManager(config) {}
std::vector<cvd::Command> QemuManager::StartCommands(bool /*with_frontend*/) {
// Set the config values in the environment
LogAndSetEnv("qemu_binary", config_->qemu_binary());
LogAndSetEnv("instance_name", config_->instance_name());
LogAndSetEnv("memory_mb", std::to_string(config_->memory_mb()));
LogAndSetEnv("cpus", std::to_string(config_->cpus()));
LogAndSetEnv("uuid", config_->uuid());
LogAndSetEnv("monitor_path", GetMonitorPath(config_));
LogAndSetEnv("kernel_image_path", config_->GetKernelImageToUse());
LogAndSetEnv("gdb_flag", config_->gdb_flag());
LogAndSetEnv("ramdisk_image_path", config_->final_ramdisk_path());
LogAndSetEnv("kernel_cmdline", config_->kernel_cmdline_as_string());
LogAndSetEnv("virtual_disk_paths", JoinString(config_->virtual_disk_paths(),
";"));
LogAndSetEnv("wifi_tap_name", config_->wifi_tap_name());
LogAndSetEnv("mobile_tap_name", config_->mobile_tap_name());
LogAndSetEnv("kernel_log_pipe_name",
config_->kernel_log_pipe_name());
LogAndSetEnv("console_path", config_->console_path());
LogAndSetEnv("logcat_path", config_->logcat_path());
LogAndSetEnv("ivshmem_qemu_socket_path",
config_->ivshmem_qemu_socket_path());
LogAndSetEnv("ivshmem_vector_count",
std::to_string(config_->ivshmem_vector_count()));
LogAndSetEnv("usb_v1_socket_name", config_->usb_v1_socket_name());
LogAndSetEnv("vsock_guest_cid", std::to_string(config_->vsock_guest_cid()));
LogAndSetEnv("logcat_mode", config_->logcat_mode());
LogAndSetEnv("use_bootloader", config_->use_bootloader() ? "true" : "false");
LogAndSetEnv("bootloader", config_->bootloader());
cvd::Command qemu_cmd(vsoc::DefaultHostArtifactsPath("bin/cf_qemu.sh"),
[](cvd::Subprocess* proc) {
auto stopped = Stop();
if (stopped) {
return true;
}
LOG(WARNING) << "Failed to stop VMM nicely, "
<< "attempting to KILL";
return KillSubprocess(proc);
});
std::vector<cvd::Command> ret;
ret.push_back(std::move(qemu_cmd));
return ret;
}
} // namespace vm_manager
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