From 7b17be9adda52d0dd08985ea694717f3ba69f19f Mon Sep 17 00:00:00 2001 From: qiliangfan <1035847702@qq.com> Date: Fri, 2 Sep 2022 17:46:33 +0800 Subject: [PATCH] Init dbs-cli Signed-off-by: qiliangfan --- .gitignore | 5 +- Cargo.lock | 2361 +++++++++++++++++++++++++++++++++++++++++++ Cargo.toml | 39 + Makefile | 27 + README.md | 94 +- README_zh.md | 90 ++ THIRD-PARTY | 27 + docs/args.md | 24 + src/cli_instance.rs | 218 ++++ src/main.rs | 43 + src/parser/args.rs | 211 ++++ src/parser/mod.rs | 62 ++ 12 files changed, 3199 insertions(+), 2 deletions(-) create mode 100644 Cargo.lock create mode 100644 Cargo.toml create mode 100644 Makefile create mode 100644 README_zh.md create mode 100644 THIRD-PARTY create mode 100644 docs/args.md create mode 100644 src/cli_instance.rs create mode 100644 src/main.rs create mode 100644 src/parser/args.rs create mode 100644 src/parser/mod.rs diff --git a/.gitignore b/.gitignore index 088ba6b..9c8a952 100644 --- a/.gitignore +++ b/.gitignore @@ -4,7 +4,10 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"c3d7831aee7c3962b8a90f0afbfd0fb7e4d30323" } +dbs-address-space = { git = "https://github.com/openanolis/dragonball-sandbox.git", rev = "c3d7831aee7c3962b8a90f0afbfd0fb7e4d30323" } +dbs-allocator = { git = "https://github.com/openanolis/dragonball-sandbox.git", rev = "c3d7831aee7c3962b8a90f0afbfd0fb7e4d30323" } +dbs-utils = { git = "https://github.com/openanolis/dragonball-sandbox.git", rev = "c3d7831aee7c3962b8a90f0afbfd0fb7e4d30323" } +linux-loader = { git = "https://github.com/rust-vmm/linux-loader.git", tag = "v0.5.0" } \ No newline at end of file diff --git a/Makefile b/Makefile new file mode 100644 index 0000000..0083327 --- /dev/null +++ b/Makefile @@ -0,0 +1,27 @@ +# Copyright (c) 2019-2022 Alibaba Cloud. All rights reserved. +# Copyright (c) 2019-2022 Ant Group. All rights reserved. +# SPDX-License-Identifier: Apache-2.0 + +default: build + +build: + cargo build --all-features + +check: clippy format + +clippy: + @echo "INFO: cargo clippy..." + cargo clippy --all-targets --all-features \ + -- \ + -D warnings + +format: + @echo "INFO: cargo fmt..." + cargo fmt -- --check + +clean: + cargo clean + +test: + @echo "INFO: testing dbs-cli for development build" + cargo test --all-features -- --nocapture diff --git a/README.md b/README.md index 0669030..ae24c28 100644 --- a/README.md +++ b/README.md @@ -1 +1,93 @@ -# dbs-cli \ No newline at end of file +# DBS-CLI + +> for more details about args: refer to [`doc:args`](docs/args.md) +> +> [[简体中文版]](README_zh.md) + +# 1. Examples: + +See all options: + +``` +./dbs-cli --help +``` + +A simple example: + +```bash +./dbs-cli \ + --kernel-path ~/path/to/kernel/vmlinux.bin \ + --rootfs ~/path/to/rootfs/rootfs.dmg \ + --boot-args "console=ttyS0 tty0 reboot=k debug panic=1 pci=off root=/dev/vda1" ; +``` + +For the rootfs from firecracker: + +```bash +./dbs-cli \ + --kernel-path ~/path/to/kernel/vmlinux.bin \ + --rootfs ~/path/to/rootfs/bionic.rootfs.ext4 \ + --boot-args "console=ttyS0 tty0 reboot=k debug panic=1 pci=off root=/dev/vda" ; +``` + + +Set the log level and log file: + +> The log-level argument is case-insensitive: ErrOR and InFO are valid. + +```bash +./dbs-cli \ + --log-file dbs-cli.log --log-level ERROR \ + --kernel-path ~/path/to/kernel/vmlinux.bin \ + --rootfs ~/path/to/rootfs/bionic.rootfs.ext4 \ + --boot-args "console=ttyS0 tty0 reboot=k debug panic=1 pci=off root=/dev/vda1" ; +``` + +Create a vsock console (communication with sock file) + +> When the parameter `serial-path` is not given or set to "stdio", `dbs-cli` will create a stdio console. +> +> Otherwise, `dbs-cli` will create a vsock console with a sock file, namely the value of `serial-path`. + +``` +./dbs-cli \ + --log-file dbs-cli.log --log-level ERROR \ + --kernel-path ~/path/to/kernel/vmlinux.bin \ + --rootfs ~/path/to/rootfs/bionic.rootfs.ext4 \ + --boot-args "console=ttyS0 tty0 reboot=k debug panic=1 pci=off root=/dev/vda1" \ + --serial-path "/tmp/dbs" ; +``` + +# 2. Usage + +## 1. Exit vm + +> If you want to exit vm, just input `reboot` in vm's console. + +## 2. For developers + +If you wish to modify some details or debug to figure out the fault of codes, you can do as follow to see whether the program act expectedly or not. + +```bash +cargo run -- --kernel-path ~/path/to/kernel/vmlinux.bin \ + --rootfs ~/path/to/rootfs/rootfs.dmg \ + --boot-args "console=ttyS0 tty0 reboot=k debug panic=1 pci=off root=/dev/vda1" ; +``` + +To see some help: + +```bash +cargo run -- --help +``` + +## 3. Some off-topic remarks + +Regarding the dependency issue of the upstream library, it is recommended to build the `build` target of Makefile to avoid it temporally. + +```bash +make build +``` + +# License + +`DBS-CLI` is licensed under [Apache License](http://www.apache.org/licenses/LICENSE-2.0), Version 2.0. \ No newline at end of file diff --git a/README_zh.md b/README_zh.md new file mode 100644 index 0000000..af69d1e --- /dev/null +++ b/README_zh.md @@ -0,0 +1,90 @@ +# DBS-CLI + +> 如果需要更多关于命令行参数的信息: 请查阅 [`doc:args`](docs/args.md) +> +> [[English Version]](README.md) + +# 1. 简单示例: + +如果想看到所有的参数： + +```bash +./dbs-cli --help +``` + +一个简单例子： + +```bash +./dbs-cli \ + --kernel-path ~/path/to/kernel/vmlinux.bin \ + --rootfs ~/path/to/rootfs/rootfs.dmg \ + --boot-args "console=ttyS0 tty0 reboot=k debug panic=1 pci=off root=/dev/vda1" ; +``` + +如果你使用的kernel和rootfs来自firecraker,需要注意boot_args中的root参数: + +```bash +./dbs-cli \ + --kernel-path ~/path/to/kernel/vmlinux.bin \ + --rootfs ~/path/to/rootfs/bionic.rootfs.ext4 \ + --boot-args "console=ttyS0 tty0 reboot=k debug panic=1 pci=off root=/dev/vda" ; +``` + + +如果需要显式地设置日志文件和日志等级,只需要添加`--log-file`和`--log-level`参数: + +> `log-level`参数是大小写不敏感的: ErrOR 和 InFO 都是有效的log level. + +```bash +./dbs-cli \ + --log-file dbs-cli.log --log-level ERROR \ + --kernel-path ~/path/to/kernel/vmlinux.bin \ + --rootfs ~/path/to/rootfs/bionic.rootfs.ext4 \ + --boot-args "console=ttyS0 tty0 reboot=k debug panic=1 pci=off root=/dev/vda1" ; +``` + +创建一个使用socket通信的终端: + +> 当参数`serial-path`没有指定值或者值为"stdio"时, `dbs-cli`将创建一个连接标准输入输出的终端. +> +> 否则, `dbs-cli`将使用`serial-path`的值所指定的路径创建一个socket文件用以通信. + +``` +./dbs-cli \ + --log-file dbs-cli.log --log-level ERROR \ + --kernel-path ~/path/to/kernel/vmlinux.bin \ + --rootfs ~/path/to/rootfs/bionic.rootfs.ext4 \ + --boot-args "console=ttyS0 tty0 reboot=k debug panic=1 pci=off root=/dev/vda1" \ + --serial-path "/tmp/dbs" ; +``` + +# 2. 使用指南 + +## 1. 退出虚拟机 + +> 由于底层实现的限制, 目前不支持reboot操作, 如果需要退出虚拟机, 只需要在vm中输入`reboot`指令即可。 + +## 2. 开发者调试 + +如果想对该程序进行调试，而不想每次都编译一遍，可以通过以下方式执行该程序: + +```bash +cargo run -- --kernel-path ~/path/to/kernel/vmlinux.bin \ + --rootfs ~/path/to/rootfs/rootfs.dmg \ + --boot-args "console=ttyS0 tty0 reboot=k debug panic=1 pci=off root=/dev/vda1" ; +``` + +如果想看到帮助提示： + +```bash +cargo run -- --help +``` + + +## 3. 题外话 + +考虑到当前阶段上游依赖库存在一些版本冲突问题，如果你是第一次执行此程序，建议执行一下Makefile文件： + +```bash +make build +``` \ No newline at end of file diff --git a/THIRD-PARTY b/THIRD-PARTY new file mode 100644 index 0000000..c306912 --- /dev/null +++ b/THIRD-PARTY @@ -0,0 +1,27 @@ +// Copyright 2017 The Chromium OS Authors. All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. \ No newline at end of file diff --git a/docs/args.md b/docs/args.md new file mode 100644 index 0000000..4e75ef6 --- /dev/null +++ b/docs/args.md @@ -0,0 +1,24 @@ +# 1. The command line arguments. + +> When using the stdio console, we do not want to receive a confusing message from the logging system. Thus, log messages are written to the file, whose default location can be found in the table below. + +| arguments | required | default value | description | +| :----------------: | :------: | :----------------------------------------------------------------: | :------------------------------------------------------------------------------: | +| `serial-path` | false | `stdio` | The serial path used to communicate with VM (If set to `"stdio"`, create a stdio console. Otherwise, create a serial console.) | +| `rootfs` | true | - | The path to rootfs image. | +| `kernel-path` | true | - | The path of kernel image (Only uncompressed kernel is supported for Dragonball). | +| `log-file` | false | `dbs-cli.log` | The path to log file | +| `log-level` | false | `Info` | The logging level. | +| `boot-args` | false | `console=ttyS0 tty0 reboot=k debug panic=1 pci=off root=/dev/vda1` | The boot arguments passed to the kernel. | +| `is-root` | false | `true` | Decide the device to be the root boot device or not. | +| `is-read-only` | false | `false` | The driver opened in read-only or not. | +| `vcpu` | false | `1` | The number of vcpu to start. | +| `max-vcpu` | false | `1` | The max number of vpu can be added. | +| `cpu-pm` | false | `0` | vpmu support level. | +| `threads-per-core` | false | `1` | Threads per core to indicate hyper-threading is enabled or not. | +| `cores-per-die` | false | `1` | Cores per die to guide guest cpu topology init. | +| `dies-per-socket` | false | `1` | Dies per socket to guide guest cpu topology. | +| `sockets` | false | `1` | The number of sockets. | +| `mem-type` | false | `shmem` | Memory type that can be either hugetlbfs or shmem. | +| `mem-file` | false | `` | Memory file path. | +| `initrd-path` | false | `None` | The path of initrd. | \ No newline at end of file diff --git a/src/cli_instance.rs b/src/cli_instance.rs new file mode 100644 index 0000000..ec4712d --- /dev/null +++ b/src/cli_instance.rs @@ -0,0 +1,218 @@ +// Copyright (c) 2019-2022 Alibaba Cloud +// Copyright (c) 2019-2022 Ant Group +// +// SPDX-License-Identifier: Apache-2.0 +// + +use std::{ + path::{Path, PathBuf}, + sync::{ + mpsc::{Receiver, Sender}, + Arc, RwLock, + }, +}; + +use anyhow::{anyhow, Context, Result}; +use seccompiler::BpfProgram; +use vmm_sys_util::eventfd::EventFd; + +use dragonball::{ + api::v1::{ + BlockDeviceConfigInfo, BootSourceConfig, InstanceInfo, VmmAction, VmmActionError, VmmData, + VmmRequest, VmmResponse, + }, + vm::{CpuTopology, VmConfigInfo}, +}; + +use crate::parser::DBSArgs; + +const DRAGONBALL_VERSION: &str = env!("CARGO_PKG_VERSION"); +const REQUEST_RETRY: u32 = 500; + +pub enum Request { + Sync(VmmAction), +} + +pub struct CliInstance { + /// VMM instance info directly accessible from runtime + pub vmm_shared_info: Arc>, + pub to_vmm: Option>, + pub from_vmm: Option>, + pub to_vmm_fd: EventFd, + pub seccomp: BpfProgram, +} + +impl CliInstance { + pub fn new(id: &str) -> Self { + let vmm_shared_info = Arc::new(RwLock::new(InstanceInfo::new( + String::from(id), + DRAGONBALL_VERSION.to_string(), + ))); + + let to_vmm_fd = EventFd::new(libc::EFD_NONBLOCK) + .unwrap_or_else(|_| panic!("Failed to create eventfd for vmm {}", id)); + + CliInstance { + vmm_shared_info, + to_vmm: None, + from_vmm: None, + to_vmm_fd, + seccomp: vec![], + } + } + + pub fn run_vmm_server(&mut self, args: DBSArgs) -> Result<()> { + // configuration + let vm_config = VmConfigInfo { + vcpu_count: args.create_args.vcpu, + max_vcpu_count: args.create_args.max_vcpu, + cpu_pm: args.create_args.cpu_pm.clone(), + cpu_topology: CpuTopology { + threads_per_core: args.create_args.cpu_topology.threads_per_core, + cores_per_die: args.create_args.cpu_topology.cores_per_die, + dies_per_socket: args.create_args.cpu_topology.dies_per_socket, + sockets: args.create_args.cpu_topology.sockets, + }, + vpmu_feature: 0, + mem_type: args.create_args.mem_type.clone(), + mem_file_path: args.create_args.mem_file_path.clone(), + mem_size_mib: args.create_args.mem_size, + // as in crate `dragonball` serial_path will be assigned with a default value, + // we need a special token to enable the stdio console. + serial_path: Some(args.create_args.serial_path.clone()), + }; + + // check the existence of the serial path (rm it if exist) + let serial_file = Path::new(&args.create_args.serial_path); + if args.create_args.serial_path != *"stdio" && serial_file.exists() { + std::fs::remove_file(serial_file).unwrap(); + } + + // boot source + let boot_source_config = BootSourceConfig { + kernel_path: args.boot_args.kernel_path.clone(), + initrd_path: args.boot_args.initrd_path.clone(), + boot_args: Some(args.boot_args.boot_args.clone()), + }; + + // rootfs + let mut block_device_config_info = BlockDeviceConfigInfo::default(); + block_device_config_info = BlockDeviceConfigInfo { + drive_id: String::from("rootfs"), + path_on_host: PathBuf::from(&args.boot_args.rootfs_args.rootfs), + is_root_device: args.boot_args.rootfs_args.is_root, + is_read_only: args.boot_args.rootfs_args.is_read_only, + ..block_device_config_info + }; + + // set vm configuration + self.set_vm_configuration(vm_config) + .expect("failed to set vm configuration"); + + // set boot source config + self.put_boot_source(boot_source_config) + .expect("failed to set boot source"); + + // set rootfs + self.insert_block_device(block_device_config_info) + .expect("failed to set block device"); + + // start micro-vm + self.instance_start().expect("failed to start micro-vm"); + + Ok(()) + } + + pub fn put_boot_source(&self, boot_source_cfg: BootSourceConfig) -> Result<()> { + self.handle_request(Request::Sync(VmmAction::ConfigureBootSource( + boot_source_cfg, + ))) + .context("Failed to configure boot source")?; + Ok(()) + } + + pub fn instance_start(&self) -> Result<()> { + self.handle_request(Request::Sync(VmmAction::StartMicroVm)) + .context("Failed to start MicroVm")?; + Ok(()) + } + + pub fn insert_block_device(&self, device_cfg: BlockDeviceConfigInfo) -> Result<()> { + self.handle_request_with_retry(Request::Sync(VmmAction::InsertBlockDevice( + device_cfg.clone(), + ))) + .with_context(|| format!("Failed to insert block device {:?}", device_cfg))?; + Ok(()) + } + + pub fn set_vm_configuration(&self, vm_config: VmConfigInfo) -> Result<()> { + self.handle_request(Request::Sync(VmmAction::SetVmConfiguration( + vm_config.clone(), + ))) + .with_context(|| format!("Failed to set vm configuration {:?}", vm_config))?; + Ok(()) + } + + fn send_request(&self, vmm_action: VmmAction) -> Result { + if let Some(ref to_vmm) = self.to_vmm { + to_vmm + .send(Box::new(vmm_action.clone())) + .with_context(|| format!("Failed to send {:?} via channel ", vmm_action))?; + } else { + return Err(anyhow!("to_vmm is None")); + } + + //notify vmm action + if let Err(e) = self.to_vmm_fd.write(1) { + return Err(anyhow!("failed to notify vmm: {}", e)); + } + + if let Some(from_vmm) = self.from_vmm.as_ref() { + match from_vmm.recv() { + Err(e) => Err(anyhow!("vmm recv err: {}", e)), + Ok(vmm_outcome) => Ok(vmm_outcome), + } + } else { + Err(anyhow!("from_vmm is None")) + } + } + + fn handle_request(&self, req: Request) -> Result { + let Request::Sync(vmm_action) = req; + match self.send_request(vmm_action) { + Ok(vmm_outcome) => match *vmm_outcome { + Ok(vmm_data) => Ok(vmm_data), + Err(vmm_action_error) => Err(anyhow!("vmm action error: {:?}", vmm_action_error)), + }, + Err(e) => Err(e), + } + } + + fn handle_request_with_retry(&self, req: Request) -> Result { + let Request::Sync(vmm_action) = req; + for _ in 0..REQUEST_RETRY { + match self.send_request(vmm_action.clone()) { + Ok(vmm_outcome) => match *vmm_outcome { + Ok(vmm_data) => { + return Ok(vmm_data); + } + Err(vmm_action_error) => { + if let VmmActionError::UpcallNotReady = vmm_action_error { + std::thread::sleep(std::time::Duration::from_millis(10)); + continue; + } else { + return Err(vmm_action_error.into()); + } + } + }, + Err(err) => { + return Err(err); + } + } + } + Err(anyhow::anyhow!( + "After {} attempts, it still doesn't work.", + REQUEST_RETRY + )) + } +} diff --git a/src/main.rs b/src/main.rs new file mode 100644 index 0000000..12af403 --- /dev/null +++ b/src/main.rs @@ -0,0 +1,43 @@ +// #![allow(unused)] + +extern crate slog_term; + +use std::str::FromStr; +use std::sync::Mutex; + +use anyhow::Result; +use clap::Parser; +use slog::Drain; +use slog::*; +use slog_scope::set_global_logger; + +use parser::run_with_cli; +use parser::DBSArgs; + +mod cli_instance; +mod parser; + +fn main() -> Result<()> { + let args: DBSArgs = DBSArgs::parse(); + + let log_file = &args.log_file; + let log_level = Level::from_str(&args.log_level).unwrap(); + + let file = std::fs::OpenOptions::new() + .truncate(true) + .read(true) + .create(true) + .write(true) + .open(log_file) + .expect("Cannot write to the log file."); + + let root = slog::Logger::root( + Mutex::new(slog_json::Json::default(file).filter_level(log_level)).map(slog::Fuse), + o!("version" => env!("CARGO_PKG_VERSION")), + ); + + let _guard = set_global_logger(root); + + run_with_cli(args)?; + Ok(()) +} diff --git a/src/parser/args.rs b/src/parser/args.rs new file mode 100644 index 0000000..7264372 --- /dev/null +++ b/src/parser/args.rs @@ -0,0 +1,211 @@ +// Copyright (C) 2022 Alibaba Cloud. All rights reserved. +// Copyright 2018 Amazon.com, Inc. or its affiliates. All Rights Reserved. +// SPDX-License-Identifier: Apache-2.0 + +use clap::{Args, Parser}; +use serde_derive::{Deserialize, Serialize}; + +/// A simple command-line tool to start DragonBall micro-VM +#[derive(Parser, Debug)] +#[clap(author, version, about, long_about = None)] +pub struct DBSArgs { + #[clap(flatten)] + pub create_args: CreateArgs, + + #[clap(flatten)] + pub boot_args: BootArgs, + + #[clap(long, value_parser, default_value = "dbs-cli.log", display_order = 1)] + pub log_file: String, + + #[clap(long, value_parser, default_value = "Info", display_order = 1)] + pub log_level: String, +} + +/// CPU related configurations +#[derive(Args, Debug, Serialize, Deserialize)] +pub struct CpuTopologyArgs { + #[clap( + long, + value_parser, + default_value_t = 1, + help = "Threads per core to indicate hyper-threading is enabled or not", + display_order = 1 + )] + pub threads_per_core: u8, + + #[clap( + long, + value_parser, + default_value_t = 1, + help = "Cores per die to guide guest cpu topology init", + display_order = 1 + )] + pub cores_per_die: u8, + + #[clap( + long, + value_parser, + default_value_t = 1, + help = "Dies per socket to guide guest cpu topology", + display_order = 1 + )] + pub dies_per_socket: u8, + + #[clap( + long, + value_parser, + default_value_t = 1, + help = "The number of sockets", + display_order = 1 + )] + pub sockets: u8, +} + +/// Rootfs configuration +#[derive(Args, Debug, Serialize, Deserialize)] +pub struct RootfsArgs { + #[clap( + short, + long, + value_parser, + help = "The path of rootfs file", + display_order = 4 + )] + pub rootfs: String, + + #[clap( + long, + value_parser, + default_value_t = true, + help = "Decide the device to be the root boot device or not [default: true]", + display_order = 5 + )] + pub is_root: bool, + + #[clap( + long, + value_parser, + default_value_t = false, + help = "The driver opened in read-only or not [default: false]", + display_order = 6 + )] + pub is_read_only: bool, +} + +/// Configurations used for creating a VM. +#[derive(Args, Debug, Deserialize, Serialize)] +pub struct CreateArgs { + /// features of cpu + #[clap( + short = 'C', + long, + value_parser, + default_value_t = 1, + help = "The number of vcpu to start", + display_order = 1 + )] + pub vcpu: u8, + #[clap( + long, + value_parser, + default_value_t = 1, + help = "The max number of vpu can be added", + display_order = 1 + )] + pub max_vcpu: u8, + #[clap( + long, + value_parser, + default_value = "on", + help = "The cpu power management", + display_order = 1 + )] + pub cpu_pm: String, + #[clap( + long, + value_parser, + default_value_t = 0, + help = "vpmu support level", + display_order = 1 + )] + pub vpmu_feature: u8, + #[clap(flatten)] + pub cpu_topology: CpuTopologyArgs, + + /// features of mem + #[clap( + long, + value_parser, + default_value = "shmem", + help = "Memory type that can be either hugetlbfs or shmem, default is shmem", + display_order = 2 + )] + pub mem_type: String, + #[clap( + long, + value_parser, + default_value = "", + help = "Memory file path", + display_order = 2 + )] + pub mem_file_path: String, + #[clap( + short, + long, + value_parser, + default_value_t = 128, + help = "The memory size in Mib", + display_order = 2 + )] + pub mem_size: usize, + + // The serial path used to communicate with VM + #[clap( + short, + long, + value_parser, + default_value = "stdio", + help = "The serial path used to communicate with VM", + display_order = 2 + )] + pub serial_path: String, +} + +/// Config boot source including rootfs file path +#[derive(Args, Debug, Deserialize, Serialize)] +#[clap(arg_required_else_help = true)] +pub struct BootArgs { + #[clap( + short, + long, + value_parser, + help = "The path of kernel image (Only uncompressed kernel is supported for Dragonball)", + display_order = 1 + )] + pub kernel_path: String, + + #[clap( + short, + long, + value_parser, + help = "The path of initrd (Optional)", + display_order = 2 + )] + pub initrd_path: Option, + + // for kata_rootfs: 'root=/dev/vda1' + #[clap( + short, + long, + value_parser, + default_value = "console=ttyS0 tty0 reboot=k debug panic=1 pci=off root=/dev/vda1", + help = "The boot arguments passed to the kernel (Optional)", + display_order = 3 + )] + pub boot_args: String, + + /// rootfs + #[clap(flatten)] + pub rootfs_args: RootfsArgs, +} diff --git a/src/parser/mod.rs b/src/parser/mod.rs new file mode 100644 index 0000000..824a6e8 --- /dev/null +++ b/src/parser/mod.rs @@ -0,0 +1,62 @@ +// Copyright (C) 2020-2022 Alibaba Cloud. All rights reserved. +// Copyright 2018 Amazon.com, Inc. or its affiliates. All Rights Reserved. +// SPDX-License-Identifier: Apache-2.0 + +use std::{ + fs::OpenOptions, + os::unix::io::IntoRawFd, + sync::{mpsc::channel, Arc, Mutex}, + thread, +}; + +use anyhow::Result; + +pub use args::DBSArgs; +use dragonball::{api::v1::VmmService, Vmm}; + +use crate::cli_instance::CliInstance; + +pub mod args; + +const KVM_DEVICE: &str = "/dev/kvm"; + +pub fn run_with_cli(args: DBSArgs) -> Result { + let mut cli_instance = CliInstance::new("dbs-cli"); + + let kvm = OpenOptions::new().read(true).write(true).open(KVM_DEVICE)?; + + let (to_vmm, from_runtime) = channel(); + let (to_runtime, from_vmm) = channel(); + + let vmm_service = VmmService::new(from_runtime, to_runtime); + + cli_instance.to_vmm = Some(to_vmm); + cli_instance.from_vmm = Some(from_vmm); + + let api_event_fd2 = cli_instance + .to_vmm_fd + .try_clone() + .expect("Failed to dup eventfd"); + let vmm = Vmm::new( + cli_instance.vmm_shared_info.clone(), + api_event_fd2, + cli_instance.seccomp.clone(), + cli_instance.seccomp.clone(), + Some(kvm.into_raw_fd()), + ) + .expect("Failed to start vmm"); + + thread::Builder::new() + .name("set configuration".to_owned()) + .spawn(move || { + cli_instance + .run_vmm_server(args) + .expect("Failed to run server."); + }) + .unwrap(); + + Ok(Vmm::run_vmm_event_loop( + Arc::new(Mutex::new(vmm)), + vmm_service, + )) +}