RFC: enhance kvm-binding to optionally support serde

.gitignore

@@ -1,3 +1,4 @@
 /target
 **/*.rs.bk
 .idea
+Cargo.lock

.travis.yml

@@ -3,8 +3,14 @@ rust:
   - stable
 script:
   - cargo build --release
+  - cargo build --release --features with-serde
   - cargo build --release --features kvm-v4_14_0
   - cargo build --release --features kvm-v4_20_0
+  - cargo build --release --features kvm-v4_14_0,with-serde
+  - cargo build --release --features kvm-v4_20_0,with-serde
   - cargo test
+  - cargo test --features with-serde
   - cargo test --features kvm-v4_14_0
   - cargo test --features kvm-v4_20_0
+  - cargo test --features kvm-v4_14_0,with-serde
+  - cargo test --features kvm-v4_20_0,with-serde

Cargo.toml

@@ -11,5 +11,11 @@ license = "Apache-2.0"
 [features]
 kvm-v4_14_0 = []
 kvm-v4_20_0 = []
+with-serde = ["serde", "vmm-serde/serde_derive_ffi"]
 
 [dependencies]
+serde = { version = "1.0", optional = true }
+vmm-serde = { git = "https://github.com/jiangliu/vmm-serde", branch = "v1" }
+
+[dev-dependencies]
+serde_json = "1.0"

src/lib.rs

@@ -5,6 +5,8 @@
 #![allow(non_camel_case_types)]
 #![allow(non_snake_case)]
 
+extern crate vmm_serde;
+
 #[cfg(any(target_arch = "x86", target_arch = "x86_64"))]
 mod x86;
 #[cfg(any(target_arch = "x86", target_arch = "x86_64"))]