5 files changed, 24 insertions, 17 deletions
diff --git a/guests/fibonacci/default_private_input.toml b/guests/fibonacci/default_private_input.toml
new file mode 100644
index 0000000..f0375d7
--- /dev/null
+++ b/guests/fibonacci/default_private_input.toml
@@ -0,0 +1 @@
+fN = 259695496911122585
diff --git a/guests/fibonacci/default_public_input.toml b/guests/fibonacci/default_public_input.toml
index 74b33bc..c1f77d0 100644
--- a/guests/fibonacci/default_public_input.toml
+++ b/guests/fibonacci/default_public_input.toml
@@ -1,2 +1 @@
-n  = 85
-fN = 259695496911122585
+n = 85
diff --git a/guests/graph_coloring/default_private_input.toml b/guests/graph_coloring/default_private_input.toml
new file mode 100644
index 0000000..c593326
--- /dev/null
+++ b/guests/graph_coloring/default_private_input.toml
@@ -0,0 +1,12 @@
+coloring = [
+  [0, 2],
+  [1, 1],
+  [2, 1],
+  [3, 0],
+  [4, 1],
+  [5, 2],
+  [6, 0],
+  [7, 0],
+  [8, 1],
+  [9, 2]
+]
diff --git a/guests/graph_coloring/default_public_input.toml b/guests/graph_coloring/default_public_input.toml
index b240a3a..c09ebb0 100644
--- a/guests/graph_coloring/default_public_input.toml
+++ b/guests/graph_coloring/default_public_input.toml
@@ -12,16 +12,3 @@ graph = [
 ]
 
 colors = 3
-
-coloring = [
-  [0, 2],
-  [1, 1],
-  [2, 1],
-  [3, 0],
-  [4, 1],
-  [5, 2],
-  [6, 0],
-  [7, 0],
-  [8, 1],
-  [9, 2]
-]
diff --git a/zkvms_host_io/src/lib.rs b/zkvms_host_io/src/lib.rs
index d00a1b1..8e49e29 100644
--- a/zkvms_host_io/src/lib.rs
+++ b/zkvms_host_io/src/lib.rs
@@ -6,6 +6,7 @@ use std::{env, option::Option, fs::read_to_string, collections::HashMap};
 pub use input_macros::foreach_input_field;
 
 static DEFAULT_PUBLIC_INPUT: &str = include_str!(concat!(env!("INPUTS_DIR"), "/default_public_input.toml"));
+static DEFAULT_PRIVATE_INPUT: &str = include_str!(concat!(env!("INPUTS_DIR"), "/default_private_input.toml"));
 static DEFAULT_ENV: &str = include_str!(concat!(env!("INPUTS_DIR"), "/default.env"));
 
 #[derive(Parser, Debug)]
@@ -14,6 +15,8 @@ struct Cli {
     /// What the ZKVM is going to do
     run_type: RunType,
 
+    private_input: Option<String>,
+
     public_input: Option<String>,
 }
 
@@ -53,12 +56,17 @@ input_macros::generate_output_type_input_struct!();
 pub fn read_args() -> RunWith<Input> {
     let cli = Cli::parse();
 
-    let contents: String = if cli.public_input.is_some() {
+    let public_contents: String = if cli.public_input.is_some() {
             read_to_string(cli.public_input.unwrap()).unwrap()
         } else {
             DEFAULT_PUBLIC_INPUT.to_string()
         };
-    let input: Input = toml::from_str(&contents).unwrap();
+    let private_contents: String = if cli.private_input.is_some() {
+            read_to_string(cli.private_input.unwrap()).unwrap()
+        } else {
+            DEFAULT_PRIVATE_INPUT.to_string()
+        };
+    let input: Input = toml::from_str(&(public_contents + &private_contents)).unwrap();
 
     let default_env = read_str(DEFAULT_ENV).unwrap();