PVF: Add Secure Validator Mode (#2486)

Co-authored-by: Javier Viola <javier@parity.io>

polkadot/node/service/src/lib.rs

@@ -633,6 +633,8 @@ pub struct NewFullParams<OverseerGenerator: OverseerGen> {
 	/// The version of the node. TESTING ONLY: `None` can be passed to skip the node/worker version
 	/// check, both on startup and in the workers.
 	pub node_version: Option<String>,
+	/// Whether the node is attempting to run as a secure validator.
+	pub secure_validator_mode: bool,
 	/// An optional path to a directory containing the workers.
 	pub workers_path: Option<std::path::PathBuf>,
 	/// Optional custom names for the prepare and execute workers.
@@ -722,6 +724,7 @@ pub fn new_full<OverseerGenerator: OverseerGen>(
 		jaeger_agent,
 		telemetry_worker_handle,
 		node_version,
+		secure_validator_mode,
 		workers_path,
 		workers_names,
 		overseer_gen,
@@ -953,6 +956,7 @@ pub fn new_full<OverseerGenerator: OverseerGen>(
 				.ok_or(Error::DatabasePathRequired)?
 				.join("pvf-artifacts"),
 			node_version,
+			secure_validator_mode,
 			prep_worker_path,
 			exec_worker_path,
 		})