1 /*
2 * Copyright (C) 2018 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include "host/libs/vm_manager/vm_manager.h"
18
19 #include <android-base/logging.h>
20
21 #include <iomanip>
22 #include <memory>
23
24 #include "host/libs/config/cuttlefish_config.h"
25 #include "host/libs/vm_manager/crosvm_manager.h"
26 #include "host/libs/vm_manager/qemu_manager.h"
27
28 namespace cuttlefish {
29 namespace vm_manager {
30
GetVmManager(const std::string & name,Arch arch)31 std::unique_ptr<VmManager> GetVmManager(const std::string& name, Arch arch) {
32 std::unique_ptr<VmManager> vmm;
33 if (name == QemuManager::name()) {
34 vmm.reset(new QemuManager(arch));
35 } else if (name == CrosvmManager::name()) {
36 vmm.reset(new CrosvmManager(arch));
37 }
38 if (!vmm) {
39 LOG(ERROR) << "Invalid VM manager: " << name;
40 return {};
41 }
42 if (!vmm->IsSupported()) {
43 LOG(ERROR) << "VM manager " << name << " is not supported on this machine.";
44 return {};
45 }
46 return vmm;
47 }
48
ConfigureMultipleBootDevices(const std::string & pci_path,int pci_offset,int num_disks)49 std::string ConfigureMultipleBootDevices(const std::string& pci_path,
50 int pci_offset, int num_disks) {
51 int num_boot_devices =
52 (num_disks < VmManager::kDefaultNumBootDevices) ? num_disks : VmManager::kDefaultNumBootDevices;
53 std::string boot_devices_prop = "androidboot.boot_devices=";
54 for (int i = 0; i < num_boot_devices; i++) {
55 std::stringstream stream;
56 stream << std::setfill('0') << std::setw(2) << std::hex
57 << pci_offset + i + VmManager::kDefaultNumHvcs + VmManager::kMaxDisks - num_disks;
58 boot_devices_prop += pci_path + stream.str() + ".0,";
59 }
60 boot_devices_prop.pop_back();
61 return {boot_devices_prop};
62 }
63
64 } // namespace vm_manager
65 } // namespace cuttlefish
66
67