mirror of
https://github.com/asterinas/asterinas.git
synced 2025-06-27 03:13:23 +00:00
108 lines
3.0 KiB
Rust
108 lines
3.0 KiB
Rust
// SPDX-License-Identifier: MPL-2.0
|
|
|
|
//! A module about QEMU settings and arguments.
|
|
|
|
use std::{path::PathBuf, process};
|
|
|
|
use crate::{
|
|
arch::{get_default_arch, Arch},
|
|
config::unix_args::{apply_kv_array, get_key, split_to_kv_array},
|
|
error::Errno,
|
|
error_msg,
|
|
};
|
|
|
|
#[derive(Debug, Default, Clone, PartialEq, Eq, Serialize, Deserialize)]
|
|
pub struct QemuScheme {
|
|
/// The additional arguments for running QEMU, in the form of raw
|
|
/// command line arguments.
|
|
pub args: Option<String>,
|
|
/// The path of qemu
|
|
pub path: Option<PathBuf>,
|
|
}
|
|
|
|
#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
|
|
pub struct Qemu {
|
|
pub args: String,
|
|
pub path: PathBuf,
|
|
}
|
|
|
|
impl Default for Qemu {
|
|
fn default() -> Self {
|
|
Qemu {
|
|
args: String::new(),
|
|
path: PathBuf::from(get_default_arch().system_qemu()),
|
|
}
|
|
}
|
|
}
|
|
|
|
impl Qemu {
|
|
pub fn apply_qemu_args(&mut self, args: &Vec<String>) {
|
|
let mut joined = split_to_kv_array(&self.args);
|
|
|
|
// Check the soundness of qemu arguments
|
|
for arg in joined.iter() {
|
|
check_qemu_arg(arg);
|
|
}
|
|
|
|
apply_kv_array(&mut joined, args, " ", MULTI_VALUE_KEYS);
|
|
|
|
self.args = joined.join(" ");
|
|
}
|
|
}
|
|
|
|
impl QemuScheme {
|
|
pub fn inherit(&mut self, from: &Self) {
|
|
if self.args.is_none() {
|
|
self.args.clone_from(&from.args);
|
|
}
|
|
if self.path.is_none() {
|
|
self.path.clone_from(&from.path);
|
|
}
|
|
}
|
|
|
|
pub fn finalize(self, arch: Arch) -> Qemu {
|
|
Qemu {
|
|
args: self.args.unwrap_or_default(),
|
|
path: self.path.unwrap_or(PathBuf::from(arch.system_qemu())),
|
|
}
|
|
}
|
|
}
|
|
|
|
// Below are checked keys in qemu arguments. The key list is non-exhaustive.
|
|
|
|
/// Keys with multiple values
|
|
const MULTI_VALUE_KEYS: &[&str] = &[
|
|
"-device", "-chardev", "-object", "-netdev", "-drive", "-cdrom",
|
|
];
|
|
/// Keys with only single value
|
|
const SINGLE_VALUE_KEYS: &[&str] = &["-cpu", "-machine", "-m", "-serial", "-monitor", "-display"];
|
|
/// Keys with no value
|
|
const NO_VALUE_KEYS: &[&str] = &["--no-reboot", "-nographic", "-enable-kvm"];
|
|
/// Keys are not allowed to set in configuration files and command line
|
|
const NOT_ALLOWED_TO_SET_KEYS: &[&str] = &["-kernel", "-append", "-initrd"];
|
|
|
|
fn check_qemu_arg(arg: &str) {
|
|
let key = if let Some(key) = get_key(arg, " ") {
|
|
key
|
|
} else {
|
|
arg.to_string()
|
|
};
|
|
|
|
if NOT_ALLOWED_TO_SET_KEYS.contains(&key.as_str()) {
|
|
error_msg!("`{}` is not allowed to set", arg);
|
|
process::exit(Errno::ParseMetadata as _);
|
|
}
|
|
|
|
if NO_VALUE_KEYS.contains(&key.as_str()) && key.as_str() != arg {
|
|
error_msg!("`{}` cannot have value", arg);
|
|
process::exit(Errno::ParseMetadata as _);
|
|
}
|
|
|
|
if (SINGLE_VALUE_KEYS.contains(&key.as_str()) || MULTI_VALUE_KEYS.contains(&key.as_str()))
|
|
&& key.as_str() == arg
|
|
{
|
|
error_msg!("`{}` should have value", arg);
|
|
process::exit(Errno::ParseMetadata as _);
|
|
}
|
|
}
|