mirror of
https://github.com/cloud-hypervisor/cloud-hypervisor.git
synced 2026-08-05 02:19:16 +00:00
e52132c8c8
CONTRIBUTING.md: removed a space to suport markdown linking Refactored cmdline and net_params arguments to use option adapters to achieve the same parsed results in a "more rusty" way. Deleted a space in the contributing markdown to link properly. Signed-off-by: Logan Saso <logansaso+tech@gmail.com>
122 lines
3.2 KiB
Rust
Executable File
122 lines
3.2 KiB
Rust
Executable File
// Copyright © 2019 Intel Corporation
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//
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// SPDX-License-Identifier: Apache-2.0
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//
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extern crate vmm;
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#[macro_use(crate_version, crate_authors)]
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extern crate clap;
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use clap::{App, Arg};
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use std::path::PathBuf;
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use vmm::vm::*;
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fn main() {
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let cmd_arguments = App::new("cloud-hypervisor")
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.version(crate_version!())
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.author(crate_authors!())
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.about("Launch a cloud-hypervisor VMM.")
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.arg(
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Arg::with_name("kernel")
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.long("kernel")
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.help("Path to kernel image (vmlinux)")
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.takes_value(true),
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)
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.arg(
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Arg::with_name("cmdline")
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.long("cmdline")
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.help("Kernel command line")
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.takes_value(true),
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)
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.arg(
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Arg::with_name("disk")
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.long("disk")
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.help("Path to VM disk image")
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.takes_value(true),
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)
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.arg(
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Arg::with_name("net")
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.long("net")
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.help("Network parameters \"tap=<if_name>,ip=<ip_addr>,mask=<net_mask>,mac=<mac_addr>\"")
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.takes_value(true),
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)
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.arg(
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Arg::with_name("cpus")
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.long("cpus")
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.help("Number of virtual CPUs")
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.takes_value(true),
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)
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.arg(
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Arg::with_name("memory")
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.long("memory")
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.help("Amount of RAM (in MB)")
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.takes_value(true),
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)
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.arg(
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Arg::with_name("rng")
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.long("rng")
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.help("Path to entropy source")
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.default_value("/dev/urandom"),
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)
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.get_matches();
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let kernel_arg = cmd_arguments
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.value_of("kernel")
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.map(PathBuf::from)
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.expect("Missing argument: kernel");
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let kernel_path = kernel_arg.as_path();
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let disk_arg = cmd_arguments
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.value_of("disk")
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.map(PathBuf::from)
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.expect("Missing argument: disk");
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let disk_path = disk_arg.as_path();
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let cmdline = cmd_arguments
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.value_of("cmdline")
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.map(std::string::ToString::to_string)
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.unwrap_or_else(String::new);
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let net_params = cmd_arguments
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.value_of("net")
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.map(std::string::ToString::to_string);
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let rng_path = match cmd_arguments.occurrences_of("rng") {
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0 => None,
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_ => Some(cmd_arguments.value_of("rng").unwrap().to_string()),
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};
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let vcpus = cmd_arguments
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.value_of("cpus")
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.and_then(|c| c.parse::<u8>().ok())
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.unwrap_or(DEFAULT_VCPUS);
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let memory = cmd_arguments
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.value_of("memory")
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.and_then(|m| m.parse::<u64>().ok())
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.unwrap_or(DEFAULT_MEMORY);
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println!(
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"Cloud Hypervisor Guest\n\tvCPUs: {}\n\tMemory: {} MB\n\tKernel: {:?}\n\tKernel cmdline: {}\n\tDisk: {:?}",
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vcpus, memory, kernel_path, cmdline, disk_path
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);
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let vm_config = VmConfig::new(
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kernel_path,
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disk_path,
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rng_path,
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cmdline,
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net_params,
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vcpus,
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memory,
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)
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.unwrap();
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if let Err(e) = vmm::boot_kernel(vm_config) {
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println!("Guest boot failed: {}", e);
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}
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}
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