mirror of
https://github.com/cloud-hypervisor/cloud-hypervisor.git
synced 2024-11-04 19:11:11 +00:00
vmm: {De}serialize VmConfig
We use the serde crate to serialize and deserialize the VmVConfig structure. This structure will be passed from the HTTP API caller as a JSON payload and we need to deserialize it into a VmConfig. For a convenient use of the HTTP API, we also provide Default traits implementations for some of the VmConfig fields (vCPUs, memory, etc...). Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Samuel Ortiz
parent
f2de4d0315
commit
f674019ea1
14
Cargo.lock
generated
14
Cargo.lock
generated
@ -767,6 +767,16 @@ name = "serde"
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version = "1.0.101"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "serde_derive"
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version = "1.0.101"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"proc-macro2 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
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"quote 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
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"syn 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "serde_json"
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version = "1.0.41"
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@ -1084,6 +1094,9 @@ dependencies = [
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"net_util 0.1.0",
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"pci 0.1.0",
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"qcow 0.1.0",
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"serde 1.0.101 (registry+https://github.com/rust-lang/crates.io-index)",
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"serde_derive 1.0.101 (registry+https://github.com/rust-lang/crates.io-index)",
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"serde_json 1.0.41 (registry+https://github.com/rust-lang/crates.io-index)",
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"signal-hook 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
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"threadpool 1.7.1 (registry+https://github.com/rust-lang/crates.io-index)",
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"vfio 0.0.1",
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@ -1226,6 +1239,7 @@ dependencies = [
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"checksum rustc-serialize 0.3.24 (registry+https://github.com/rust-lang/crates.io-index)" = "dcf128d1287d2ea9d80910b5f1120d0b8eede3fbf1abe91c40d39ea7d51e6fda"
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"checksum ryu 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "c92464b447c0ee8c4fb3824ecc8383b81717b9f1e74ba2e72540aef7b9f82997"
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"checksum serde 1.0.101 (registry+https://github.com/rust-lang/crates.io-index)" = "9796c9b7ba2ffe7a9ce53c2287dfc48080f4b2b362fcc245a259b3a7201119dd"
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"checksum serde_derive 1.0.101 (registry+https://github.com/rust-lang/crates.io-index)" = "4b133a43a1ecd55d4086bd5b4dc6c1751c68b1bfbeba7a5040442022c7e7c02e"
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"checksum serde_json 1.0.41 (registry+https://github.com/rust-lang/crates.io-index)" = "2f72eb2a68a7dc3f9a691bfda9305a1c017a6215e5a4545c258500d2099a37c2"
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"checksum signal-hook 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)" = "4f61c4d59f3aaa9f61bba6450a9b80ba48362fd7d651689e7a10c453b1f6dc68"
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"checksum signal-hook-registry 1.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "1797d48f38f91643908bb14e35e79928f9f4b3cefb2420a564dde0991b4358dc"
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@ -79,6 +79,9 @@ fn main() {
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}
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}
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let default_vcpus = format! {"{}", config::DEFAULT_VCPUS};
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let default_memory = &format! {"size={}M", config::DEFAULT_MEMORY_MB};
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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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@ -89,7 +92,7 @@ fn main() {
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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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.default_value(config::DEFAULT_VCPUS)
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.default_value(&default_vcpus)
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.group("vm-config"),
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)
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.arg(
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@ -99,7 +102,7 @@ fn main() {
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"Memory parameters \"size=<guest_memory_size>,\
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file=<backing_file_path>\"",
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)
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.default_value(config::DEFAULT_MEMORY)
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.default_value(&default_memory)
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.group("vm-config"),
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)
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.arg(
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@ -25,6 +25,9 @@ micro_http = { path = "../micro_http" }
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net_util = { path = "../net_util" }
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pci = {path = "../pci", optional = true}
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qcow = { path = "../qcow" }
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serde = {version = ">=1.0.27", features = ["rc"] }
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serde_derive = ">=1.0.27"
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serde_json = ">=1.0.9"
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vfio = { path = "../vfio", optional = true }
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vm-virtio = { path = "../vm-virtio" }
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vm-allocator = { path = "../vm-allocator" }
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@ -12,8 +12,8 @@ use std::net::Ipv4Addr;
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use std::path::PathBuf;
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use std::result;
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pub const DEFAULT_VCPUS: &str = "1";
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pub const DEFAULT_MEMORY: &str = "size=512M";
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pub const DEFAULT_VCPUS: u8 = 1;
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pub const DEFAULT_MEMORY_MB: u64 = 512;
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pub const DEFAULT_RNG_SOURCE: &str = "/dev/urandom";
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/// Errors associated with VM configuration parameters.
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@ -114,7 +114,7 @@ fn parse_size(size: &str) -> Result<u64> {
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Ok(res << shift)
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}
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#[derive(Clone, Debug)]
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#[derive(Clone, Debug, Deserialize, Serialize)]
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pub struct CpusConfig(pub u8);
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impl CpusConfig {
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@ -131,7 +131,13 @@ impl From<&CpusConfig> for u8 {
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}
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}
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#[derive(Clone, Debug)]
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impl Default for CpusConfig {
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fn default() -> Self {
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CpusConfig(DEFAULT_VCPUS)
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}
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}
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#[derive(Clone, Debug, Deserialize, Serialize)]
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pub struct MemoryConfig {
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pub size: u64,
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pub file: Option<PathBuf>,
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@ -172,12 +178,21 @@ impl MemoryConfig {
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}
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}
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#[derive(Clone, Debug)]
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impl Default for MemoryConfig {
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fn default() -> Self {
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MemoryConfig {
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size: DEFAULT_MEMORY_MB << 20,
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file: None,
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}
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}
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}
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#[derive(Clone, Debug, Deserialize, Serialize)]
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pub struct KernelConfig {
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pub path: PathBuf,
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}
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#[derive(Clone)]
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#[derive(Clone, Deserialize, Serialize)]
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pub struct CmdlineConfig {
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pub args: String,
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}
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@ -192,7 +207,7 @@ impl CmdlineConfig {
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}
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}
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#[derive(Clone, Debug)]
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#[derive(Clone, Debug, Deserialize, Serialize)]
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pub struct DiskConfig {
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pub path: PathBuf,
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}
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@ -205,7 +220,7 @@ impl DiskConfig {
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}
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}
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#[derive(Clone, Debug)]
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#[derive(Clone, Debug, Deserialize, Serialize)]
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pub struct NetConfig {
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pub tap: Option<String>,
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pub ip: Ipv4Addr,
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@ -257,7 +272,7 @@ impl NetConfig {
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}
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}
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#[derive(Clone, Debug)]
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#[derive(Clone, Debug, Deserialize, Serialize)]
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pub struct RngConfig {
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pub src: PathBuf,
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}
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@ -270,7 +285,15 @@ impl RngConfig {
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}
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}
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#[derive(Clone, Debug)]
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impl Default for RngConfig {
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fn default() -> Self {
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RngConfig {
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src: PathBuf::from(DEFAULT_RNG_SOURCE),
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}
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}
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}
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#[derive(Clone, Debug, Deserialize, Serialize)]
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pub struct FsConfig {
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pub tag: String,
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pub sock: PathBuf,
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@ -358,7 +381,7 @@ impl FsConfig {
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}
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}
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#[derive(Clone, Debug)]
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#[derive(Clone, Debug, Deserialize, Serialize)]
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pub struct PmemConfig {
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pub file: PathBuf,
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pub size: u64,
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@ -391,7 +414,7 @@ impl PmemConfig {
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}
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}
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#[derive(Clone, PartialEq)]
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#[derive(Clone, PartialEq, Deserialize, Serialize)]
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pub enum ConsoleOutputMode {
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Off,
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Tty,
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@ -408,7 +431,7 @@ impl ConsoleOutputMode {
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}
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}
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#[derive(Clone)]
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#[derive(Clone, Deserialize, Serialize)]
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pub struct ConsoleConfig {
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pub file: Option<PathBuf>,
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pub mode: ConsoleOutputMode,
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@ -440,9 +463,23 @@ impl ConsoleConfig {
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Err(Error::ParseConsoleParam)
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}
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}
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pub fn default_serial() -> Self {
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ConsoleConfig {
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file: None,
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mode: ConsoleOutputMode::Null,
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}
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}
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pub fn default_console() -> Self {
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ConsoleConfig {
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file: None,
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mode: ConsoleOutputMode::Tty,
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}
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}
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}
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#[derive(Clone, Debug)]
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#[derive(Clone, Debug, Deserialize, Serialize)]
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pub struct DeviceConfig {
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pub path: PathBuf,
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}
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@ -455,14 +492,14 @@ impl DeviceConfig {
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}
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}
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#[derive(Clone, Debug)]
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#[derive(Clone, Debug, Deserialize, Serialize)]
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pub struct VuConfig {
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pub sock: String,
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pub num_queues: usize,
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pub queue_size: u16,
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}
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#[derive(Clone, Debug)]
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#[derive(Clone, Debug, Deserialize, Serialize)]
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pub struct VhostUserNetConfig {
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pub mac: MacAddr,
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pub vu_cfg: VuConfig,
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@ -521,7 +558,7 @@ impl VhostUserNetConfig {
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}
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}
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#[derive(Clone, Debug)]
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#[derive(Clone, Debug, Deserialize, Serialize)]
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pub struct VsockConfig {
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pub cid: u64,
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pub sock: PathBuf,
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@ -554,7 +591,7 @@ impl VsockConfig {
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}
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}
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#[derive(Clone, Debug)]
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#[derive(Clone, Debug, Deserialize, Serialize)]
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pub struct VhostUserBlkConfig {
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pub wce: bool,
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pub vu_cfg: VuConfig,
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@ -610,18 +647,23 @@ impl VhostUserBlkConfig {
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}
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}
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#[derive(Clone)]
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#[derive(Clone, Deserialize, Serialize)]
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pub struct VmConfig {
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#[serde(default)]
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pub cpus: CpusConfig,
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#[serde(default)]
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pub memory: MemoryConfig,
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pub kernel: Option<KernelConfig>,
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pub cmdline: CmdlineConfig,
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pub disks: Option<Vec<DiskConfig>>,
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pub net: Option<Vec<NetConfig>>,
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#[serde(default)]
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pub rng: RngConfig,
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pub fs: Option<Vec<FsConfig>>,
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pub pmem: Option<Vec<PmemConfig>>,
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#[serde(default = "ConsoleConfig::default_serial")]
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pub serial: ConsoleConfig,
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#[serde(default = "ConsoleConfig::default_console")]
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pub console: ConsoleConfig,
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pub devices: Option<Vec<DeviceConfig>>,
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pub vhost_user_net: Option<Vec<VhostUserNetConfig>>,
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@ -8,6 +8,10 @@ extern crate lazy_static;
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#[macro_use]
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extern crate log;
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extern crate serde;
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#[macro_use]
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extern crate serde_derive;
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extern crate serde_json;
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extern crate vmm_sys_util;
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use crate::api::{ApiError, ApiRequest, ApiResponse, ApiResponsePayload};
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