diff --git a/api/kapi/src/tee/arch/mod.rs b/api/kapi/src/tee/arch/mod.rs
index 832557ef..2fe50193 100644
--- a/api/kapi/src/tee/arch/mod.rs
+++ b/api/kapi/src/tee/arch/mod.rs
@@ -1,2 +1,6 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 #[cfg(target_arch = "x86_64")]
 pub mod x86_64;
diff --git a/api/kapi/src/tee/arch/x86_64/hygon_csv_bindings.rs b/api/kapi/src/tee/arch/x86_64/hygon_csv_bindings.rs
index 4d19dc4f..a97c2099 100644
--- a/api/kapi/src/tee/arch/x86_64/hygon_csv_bindings.rs
+++ b/api/kapi/src/tee/arch/x86_64/hygon_csv_bindings.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 // automatically generated by rust-bindgen 0.69.5
 
 #[repr(C)]
diff --git a/api/kapi/src/tee/arch/x86_64/mod.rs b/api/kapi/src/tee/arch/x86_64/mod.rs
index 48398ccb..3707c056 100644
--- a/api/kapi/src/tee/arch/x86_64/mod.rs
+++ b/api/kapi/src/tee/arch/x86_64/mod.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 #[cfg(feature = "x86_csv")]
 pub mod hygon_csv;
 #[cfg(feature = "x86_csv")]
diff --git a/core/kernel_elf_parser/src/auxv.rs b/core/kernel_elf_parser/src/auxv.rs
index cff6c854..48f178da 100644
--- a/core/kernel_elf_parser/src/auxv.rs
+++ b/core/kernel_elf_parser/src/auxv.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 use zerocopy::{Immutable, IntoBytes};
 
 /// Represents the type of an auxiliary vector entry.
diff --git a/core/kernel_elf_parser/src/info.rs b/core/kernel_elf_parser/src/info.rs
index 8710390a..28c7685f 100644
--- a/core/kernel_elf_parser/src/info.rs
+++ b/core/kernel_elf_parser/src/info.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 //! ELF information parsed from the ELF file
 
 use alloc::vec::Vec;
diff --git a/core/kernel_elf_parser/src/lib.rs b/core/kernel_elf_parser/src/lib.rs
index 425eafb6..d8dc4b4a 100644
--- a/core/kernel_elf_parser/src/lib.rs
+++ b/core/kernel_elf_parser/src/lib.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 #![cfg_attr(not(test), no_std)]
 #![doc = include_str!("../README.md")]
 
diff --git a/core/kernel_elf_parser/src/user_stack.rs b/core/kernel_elf_parser/src/user_stack.rs
index b59715e8..545084ba 100644
--- a/core/kernel_elf_parser/src/user_stack.rs
+++ b/core/kernel_elf_parser/src/user_stack.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 //! Initialize the user stack for the application
 //!
 //! The structure of the user stack is described in the following figure:
diff --git a/core/kernel_elf_parser/tests/test_dynamic.rs b/core/kernel_elf_parser/tests/test_dynamic.rs
index b5754296..cc764533 100644
--- a/core/kernel_elf_parser/tests/test_dynamic.rs
+++ b/core/kernel_elf_parser/tests/test_dynamic.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 #[test]
 fn test_elf_parser() {
     let elf_bytes = include_bytes!("ld-linux-x86-64.so.2");
diff --git a/core/kernel_elf_parser/tests/test_static.rs b/core/kernel_elf_parser/tests/test_static.rs
index af01ed59..cc065293 100644
--- a/core/kernel_elf_parser/tests/test_static.rs
+++ b/core/kernel_elf_parser/tests/test_static.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 use kernel_elf_parser::ELFParser;
 
 #[test]
diff --git a/core/kpoll/src/tests.rs b/core/kpoll/src/tests.rs
index d0131c1e..3f429b48 100644
--- a/core/kpoll/src/tests.rs
+++ b/core/kpoll/src/tests.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 //! Unit tests for kpoll using the unittest framework.
 
 #![cfg(unittest)]
diff --git a/core/ksync/src/tests.rs b/core/ksync/src/tests.rs
index bc6fa006..81cf3cbf 100644
--- a/core/ksync/src/tests.rs
+++ b/core/ksync/src/tests.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 //! Unit tests for ksync using the unittest framework.
 
 #![cfg(unittest)]
diff --git a/core/ktypes/src/lazy.rs b/core/ktypes/src/lazy.rs
index 94083e98..7b4d4b87 100644
--- a/core/ktypes/src/lazy.rs
+++ b/core/ktypes/src/lazy.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 //! Synchronization primitives for lazy evaluation.
 //!
 //! Implementation adapted from the `SyncLazy` type of the standard library. See:
diff --git a/core/slab_allocator/src/lib.rs b/core/slab_allocator/src/lib.rs
index 1d89c68d..82110ddf 100644
--- a/core/slab_allocator/src/lib.rs
+++ b/core/slab_allocator/src/lib.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 //! Slab allocator for `no_std` systems. It uses multiple slabs with blocks of
 //! different sizes and a [buddy_system_allocator] for blocks larger than 4096
 //! bytes.
diff --git a/core/slab_allocator/src/slab.rs b/core/slab_allocator/src/slab.rs
index 428c4e46..46302c41 100644
--- a/core/slab_allocator/src/slab.rs
+++ b/core/slab_allocator/src/slab.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 use alloc::alloc::{AllocError, Layout};
 
 use super::SET_SIZE;
diff --git a/core/slab_allocator/src/tests.rs b/core/slab_allocator/src/tests.rs
index e99c6b9f..ad7dd3ea 100644
--- a/core/slab_allocator/src/tests.rs
+++ b/core/slab_allocator/src/tests.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 use alloc::alloc::Layout;
 use core::mem::{align_of, size_of};
 
diff --git a/drivers/aarch64-pmuv3/src/lib.rs b/drivers/aarch64-pmuv3/src/lib.rs
index cda2f75f..55eeb0e8 100644
--- a/drivers/aarch64-pmuv3/src/lib.rs
+++ b/drivers/aarch64-pmuv3/src/lib.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 #![no_std]
 pub mod pmuv3;
 
diff --git a/drivers/aarch64-pmuv3/src/pmuv3.rs b/drivers/aarch64-pmuv3/src/pmuv3.rs
index 1533157d..f4e225fc 100644
--- a/drivers/aarch64-pmuv3/src/pmuv3.rs
+++ b/drivers/aarch64-pmuv3/src/pmuv3.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 //! PMU Counter Configuration Module
 use core::sync::atomic::{AtomicBool, Ordering};
 
diff --git a/drivers/aarch64-pmuv3/src/regs/macros.rs b/drivers/aarch64-pmuv3/src/regs/macros.rs
index 2d8a2627..04f3e4fe 100644
--- a/drivers/aarch64-pmuv3/src/regs/macros.rs
+++ b/drivers/aarch64-pmuv3/src/regs/macros.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 // Move to ARM register from system coprocessor register.
 // MRS Xd, sysreg "Xd = sysreg"
 #[macro_export]
diff --git a/drivers/aarch64-pmuv3/src/regs/mod.rs b/drivers/aarch64-pmuv3/src/regs/mod.rs
index 744c29ba..115a548d 100644
--- a/drivers/aarch64-pmuv3/src/regs/mod.rs
+++ b/drivers/aarch64-pmuv3/src/regs/mod.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 #[macro_use]
 pub mod macros;
 
diff --git a/drivers/aarch64-pmuv3/src/regs/pmccfiltr_el0.rs b/drivers/aarch64-pmuv3/src/regs/pmccfiltr_el0.rs
index 5d08086a..61fafb18 100644
--- a/drivers/aarch64-pmuv3/src/regs/pmccfiltr_el0.rs
+++ b/drivers/aarch64-pmuv3/src/regs/pmccfiltr_el0.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 use tock_registers::{
     interfaces::{Readable, Writeable},
     register_bitfields,
diff --git a/drivers/aarch64-pmuv3/src/regs/pmcr_el0.rs b/drivers/aarch64-pmuv3/src/regs/pmcr_el0.rs
index bcb905b7..8ed93dfa 100644
--- a/drivers/aarch64-pmuv3/src/regs/pmcr_el0.rs
+++ b/drivers/aarch64-pmuv3/src/regs/pmcr_el0.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 use tock_registers::{
     interfaces::{Readable, Writeable},
     register_bitfields,
diff --git a/drivers/aarch64-pmuv3/src/regs/pmuserenr_el0.rs b/drivers/aarch64-pmuv3/src/regs/pmuserenr_el0.rs
index 81678928..46a82bf2 100644
--- a/drivers/aarch64-pmuv3/src/regs/pmuserenr_el0.rs
+++ b/drivers/aarch64-pmuv3/src/regs/pmuserenr_el0.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 use tock_registers::{
     interfaces::{Readable, Writeable},
     register_bitfields,
diff --git a/drivers/aarch64-pmuv3/src/regs/regs.rs b/drivers/aarch64-pmuv3/src/regs/regs.rs
index 467f69f8..50d6492c 100644
--- a/drivers/aarch64-pmuv3/src/regs/regs.rs
+++ b/drivers/aarch64-pmuv3/src/regs/regs.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 use crate::define_pmu_register;
 // define_pmu_register!(pmccfiltr_el0, PMCCFILTR_EL0, "PMCCFILTR_EL0");
 define_pmu_register!(pmccntr_el0, PMCCNTR_EL0, "PMCCNTR_EL0");
diff --git a/drivers/display/src/tests.rs b/drivers/display/src/tests.rs
index 3b0992fb..adb50736 100644
--- a/drivers/display/src/tests.rs
+++ b/drivers/display/src/tests.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 //! Unit tests for display drivers using the unittest framework.
 
 #![cfg(unittest)]
diff --git a/drivers/virtio/src/mock_virtio.rs b/drivers/virtio/src/mock_virtio.rs
index aab9d2c2..88730349 100644
--- a/drivers/virtio/src/mock_virtio.rs
+++ b/drivers/virtio/src/mock_virtio.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 use core::{cell::RefCell, ptr::NonNull};
 
 use virtio_drivers::{
diff --git a/fs/fatfs/src/boot_sector.rs b/fs/fatfs/src/boot_sector.rs
index f41a3157..d5f1e6d2 100644
--- a/fs/fatfs/src/boot_sector.rs
+++ b/fs/fatfs/src/boot_sector.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 use core::slice;
 
 use crate::{
diff --git a/fs/fatfs/src/dir.rs b/fs/fatfs/src/dir.rs
index 1e5f9a67..80809a83 100644
--- a/fs/fatfs/src/dir.rs
+++ b/fs/fatfs/src/dir.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 #[cfg(all(not(feature = "std"), feature = "alloc", feature = "lfn"))]
 use alloc::vec::Vec;
 #[cfg(feature = "lfn")]
diff --git a/fs/fatfs/src/dir_entry.rs b/fs/fatfs/src/dir_entry.rs
index 9bb1fb5c..4f8d6bb7 100644
--- a/fs/fatfs/src/dir_entry.rs
+++ b/fs/fatfs/src/dir_entry.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 #[cfg(all(not(feature = "std"), feature = "alloc"))]
 use alloc::string::String;
 #[cfg(not(feature = "unicode"))]
diff --git a/fs/fatfs/src/error.rs b/fs/fatfs/src/error.rs
index ab2c4119..0749d034 100644
--- a/fs/fatfs/src/error.rs
+++ b/fs/fatfs/src/error.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 /// Error enum with all errors that can be returned by functions from this crate
 ///
 /// Generic parameter `T` is a type of external error returned by the user provided storage
diff --git a/fs/fatfs/src/file.rs b/fs/fatfs/src/file.rs
index 0ddbe88f..d2ae76fb 100644
--- a/fs/fatfs/src/file.rs
+++ b/fs/fatfs/src/file.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 use core::convert::TryFrom;
 
 use crate::{
diff --git a/fs/fatfs/src/fs.rs b/fs/fatfs/src/fs.rs
index cb677c51..b5d87c5e 100644
--- a/fs/fatfs/src/fs.rs
+++ b/fs/fatfs/src/fs.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 #[cfg(all(not(feature = "std"), feature = "alloc"))]
 use alloc::string::String;
 use core::{
diff --git a/fs/fatfs/src/io.rs b/fs/fatfs/src/io.rs
index 7e873700..b4bfe853 100644
--- a/fs/fatfs/src/io.rs
+++ b/fs/fatfs/src/io.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 use crate::error::IoError;
 
 /// Provides IO error as an associated type.
diff --git a/fs/fatfs/src/lib.rs b/fs/fatfs/src/lib.rs
index df68299b..4ec9374f 100644
--- a/fs/fatfs/src/lib.rs
+++ b/fs/fatfs/src/lib.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 //! A FAT filesystem library implemented in Rust.
 //!
 //! # Usage
diff --git a/fs/fatfs/src/log_macros.rs b/fs/fatfs/src/log_macros.rs
index 36a195dc..5cb9eb48 100644
--- a/fs/fatfs/src/log_macros.rs
+++ b/fs/fatfs/src/log_macros.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 //! This module offers a convenient way to enable only a subset of logging levels
 //! for just this `fatfs` crate only without changing the logging levels
 //! of other crates in a given project.
diff --git a/fs/fatfs/src/table.rs b/fs/fatfs/src/table.rs
index abd345f4..eeed24f5 100644
--- a/fs/fatfs/src/table.rs
+++ b/fs/fatfs/src/table.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 use core::{borrow::BorrowMut, marker::PhantomData};
 
 use crate::{
diff --git a/fs/fatfs/src/time.rs b/fs/fatfs/src/time.rs
index daa72a20..259d935f 100644
--- a/fs/fatfs/src/time.rs
+++ b/fs/fatfs/src/time.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 #[cfg(feature = "chrono")]
 use core::convert::TryFrom;
 use core::fmt::Debug;
diff --git a/fs/fs-ng-vfs/src/test_path.rs b/fs/fs-ng-vfs/src/test_path.rs
index eef065a6..56ac6b1f 100644
--- a/fs/fs-ng-vfs/src/test_path.rs
+++ b/fs/fs-ng-vfs/src/test_path.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 //! Unit tests for Path and PathBuf.
 
 #![cfg(unittest)]
diff --git a/fs/fs-ng-vfs/src/test_types.rs b/fs/fs-ng-vfs/src/test_types.rs
index a40d0f74..556fd1cb 100644
--- a/fs/fs-ng-vfs/src/test_types.rs
+++ b/fs/fs-ng-vfs/src/test_types.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 #![cfg(unittest)]
 
 use unittest::{assert_eq, def_test};
diff --git a/fs/kfs/src/fs/ext4/lwext4/fs.rs b/fs/kfs/src/fs/ext4/lwext4/fs.rs
index 5d1e5ecc..d6eefb53 100644
--- a/fs/kfs/src/fs/ext4/lwext4/fs.rs
+++ b/fs/kfs/src/fs/ext4/lwext4/fs.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 use alloc::sync::Arc;
 use core::cell::OnceCell;
 
diff --git a/fs/kfs/src/fs/ext4/lwext4/inode.rs b/fs/kfs/src/fs/ext4/lwext4/inode.rs
index d701a2c2..84a2fed3 100644
--- a/fs/kfs/src/fs/ext4/lwext4/inode.rs
+++ b/fs/kfs/src/fs/ext4/lwext4/inode.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 use alloc::{borrow::ToOwned, string::String, sync::Arc};
 use core::{any::Any, task::Context};
 
diff --git a/fs/kfs/src/fs/ext4/lwext4/mod.rs b/fs/kfs/src/fs/ext4/lwext4/mod.rs
index 26c6fd34..a5986b37 100644
--- a/fs/kfs/src/fs/ext4/lwext4/mod.rs
+++ b/fs/kfs/src/fs/ext4/lwext4/mod.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 mod fs;
 mod inode;
 mod util;
diff --git a/fs/kfs/src/fs/ext4/lwext4/util.rs b/fs/kfs/src/fs/ext4/lwext4/util.rs
index d6806f81..0f5cb541 100644
--- a/fs/kfs/src/fs/ext4/lwext4/util.rs
+++ b/fs/kfs/src/fs/ext4/lwext4/util.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 use fs_ng_vfs::{NodeType, VfsError};
 use kerrno::LinuxError;
 use lwext4_rust::{Ext4Error, InodeType, SystemHal};
diff --git a/fs/kfs/src/fs/ext4/mod.rs b/fs/kfs/src/fs/ext4/mod.rs
index 0e02f325..40edad9e 100644
--- a/fs/kfs/src/fs/ext4/mod.rs
+++ b/fs/kfs/src/fs/ext4/mod.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 #[cfg(feature = "ext4-rsext4")]
 mod rsext4;
 
diff --git a/fs/kfs/src/test_path_resolver.rs b/fs/kfs/src/test_path_resolver.rs
index 9bdf7e0b..e5886fab 100644
--- a/fs/kfs/src/test_path_resolver.rs
+++ b/fs/kfs/src/test_path_resolver.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 //! Unit tests for PathResolver.
 
 #![cfg(unittest)]
diff --git a/fs/kfs/src/test_working_context.rs b/fs/kfs/src/test_working_context.rs
index 962f4cb7..0ae90bed 100644
--- a/fs/kfs/src/test_working_context.rs
+++ b/fs/kfs/src/test_working_context.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 //! Unit tests for WorkingContext.
 
 #![cfg(unittest)]
diff --git a/fs/rsext4/src/api.rs b/fs/rsext4/src/api.rs
index 593bddfb..01ffe5c7 100644
--- a/fs/rsext4/src/api.rs
+++ b/fs/rsext4/src/api.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 //! # ext4 API
 //!
 //! 提供 ext4 文件系统的高级 API 接口，包括文件系统挂载、文件操作等功能。
diff --git a/fs/rsext4/src/bitmap.rs b/fs/rsext4/src/bitmap.rs
index 72e42641..343b5934 100644
--- a/fs/rsext4/src/bitmap.rs
+++ b/fs/rsext4/src/bitmap.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 //! # 位图操作模块
 //!
 //! 提供对块和inode位图的操作，用于跟踪块和inode的分配状态。
diff --git a/fs/rsext4/src/bitmap_cache.rs b/fs/rsext4/src/bitmap_cache.rs
index e03066db..d1cec8f8 100644
--- a/fs/rsext4/src/bitmap_cache.rs
+++ b/fs/rsext4/src/bitmap_cache.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 //! 位图缓存模块
 
 use alloc::{collections::BTreeMap, vec::Vec};
diff --git a/fs/rsext4/src/blockdev.rs b/fs/rsext4/src/blockdev.rs
index 1daa2412..870bd378 100644
--- a/fs/rsext4/src/blockdev.rs
+++ b/fs/rsext4/src/blockdev.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 //! # 块设备实现
 //!
 //! 定义了块设备的抽象接口和实现，为文件系统提供底层存储支持
diff --git a/fs/rsext4/src/blockgroup_description.rs b/fs/rsext4/src/blockgroup_description.rs
index 882ff2bb..1193c8ec 100644
--- a/fs/rsext4/src/blockgroup_description.rs
+++ b/fs/rsext4/src/blockgroup_description.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 //! # 块组描述符模块
 //!
 //! 定义了 ext4 文件系统的块组描述符结构和相关操作。
diff --git a/fs/rsext4/src/bmalloc.rs b/fs/rsext4/src/bmalloc.rs
index b5e7c8b7..782d5a4e 100644
--- a/fs/rsext4/src/bmalloc.rs
+++ b/fs/rsext4/src/bmalloc.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 //! 位图分配器模块
 
 use crate::{bitmap::*, blockgroup_description::*, superblock::*};
diff --git a/fs/rsext4/src/config.rs b/fs/rsext4/src/config.rs
index e82071f6..de2299f6 100644
--- a/fs/rsext4/src/config.rs
+++ b/fs/rsext4/src/config.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 //! # 配置常量定义
 //!
 //! 定义了 ext4 文件系统实现中使用的各种配置常量，包括块大小、
diff --git a/fs/rsext4/src/datablock_cache.rs b/fs/rsext4/src/datablock_cache.rs
index 4cb471f0..65097320 100644
--- a/fs/rsext4/src/datablock_cache.rs
+++ b/fs/rsext4/src/datablock_cache.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 //! 数据块缓存模块
 //!
 //! 提供文件和目录数据块的缓存管理，支持延迟写回和LRU淘汰
diff --git a/fs/rsext4/src/dir.rs b/fs/rsext4/src/dir.rs
index 72a80af6..5ae903dc 100644
--- a/fs/rsext4/src/dir.rs
+++ b/fs/rsext4/src/dir.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 //! # 目录操作模块
 //!
 //! 提供对 ext4 文件系统中目录的创建、删除、遍历等操作功能。
diff --git a/fs/rsext4/src/disknode.rs b/fs/rsext4/src/disknode.rs
index aac26f37..88588715 100644
--- a/fs/rsext4/src/disknode.rs
+++ b/fs/rsext4/src/disknode.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 //! # 磁盘节点模块
 //!
 //! 定义了 ext4 文件系统的 inode 结构和相关操作。
diff --git a/fs/rsext4/src/endian.rs b/fs/rsext4/src/endian.rs
index ee85cfb3..58e76d7a 100644
--- a/fs/rsext4/src/endian.rs
+++ b/fs/rsext4/src/endian.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 //! # 字节序转换辅助模块
 //!
 //! Ext4 磁盘格式使用小端序（Little Endian）
diff --git a/fs/rsext4/src/entries.rs b/fs/rsext4/src/entries.rs
index b742ec41..69a79847 100644
--- a/fs/rsext4/src/entries.rs
+++ b/fs/rsext4/src/entries.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 //! # 目录条目模块
 //!
 //! 定义了 ext4 文件系统中目录条目的数据结构和操作。
diff --git a/fs/rsext4/src/error.rs b/fs/rsext4/src/error.rs
index 06956b5f..4bbbbcc2 100644
--- a/fs/rsext4/src/error.rs
+++ b/fs/rsext4/src/error.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 //! # 错误处理模块
 //!
 //! 定义了 rsext4 库中使用的所有错误类型，提供清晰的错误信息以便调试和处理
diff --git a/fs/rsext4/src/ext4.rs b/fs/rsext4/src/ext4.rs
index 4a45de6f..337014de 100644
--- a/fs/rsext4/src/ext4.rs
+++ b/fs/rsext4/src/ext4.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 //! # Ext4 文件系统主调用入口
 //!
 //! 提供 ext4 文件系统的核心实现，包括文件系统挂载、卸载、文件操作等高层接口。
diff --git a/fs/rsext4/src/extents_tree.rs b/fs/rsext4/src/extents_tree.rs
index e9e2add5..8be3cee3 100644
--- a/fs/rsext4/src/extents_tree.rs
+++ b/fs/rsext4/src/extents_tree.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 //! # Extents 树模块
 //!
 //! 实现 ext4 文件系统的 extents 功能，用于高效管理文件的连续块分配。
diff --git a/fs/rsext4/src/file.rs b/fs/rsext4/src/file.rs
index e60d7a92..235517c6 100644
--- a/fs/rsext4/src/file.rs
+++ b/fs/rsext4/src/file.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 //! # 文件操作模块
 //!
 //! 提供对 ext4 文件系统中文件的读写、创建、删除等操作功能。
diff --git a/fs/rsext4/src/hashtree.rs b/fs/rsext4/src/hashtree.rs
index 1e9d9d3e..470e983a 100644
--- a/fs/rsext4/src/hashtree.rs
+++ b/fs/rsext4/src/hashtree.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 //! # 目录条目 HashTree 实现
 //!
 //! 提供基于哈希树的目录查找功能，替代线性搜索以提高大型目录的性能
diff --git a/fs/rsext4/src/inodetable_cache.rs b/fs/rsext4/src/inodetable_cache.rs
index 5788c288..4cc26566 100644
--- a/fs/rsext4/src/inodetable_cache.rs
+++ b/fs/rsext4/src/inodetable_cache.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 //! Inode表缓存模块
 //!
 //! 提供inode结构的缓存管理，支持延迟写回和LRU淘汰
diff --git a/fs/rsext4/src/jbd2/jbd2.rs b/fs/rsext4/src/jbd2/jbd2.rs
index d4883052..8d0d9a93 100644
--- a/fs/rsext4/src/jbd2/jbd2.rs
+++ b/fs/rsext4/src/jbd2/jbd2.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 //! # JBD2 日志系统实现
 //!
 //! 实现了 ext4 文件系统的日志功能，确保事务的原子性和一致性。
diff --git a/fs/rsext4/src/jbd2/jbdstruct.rs b/fs/rsext4/src/jbd2/jbdstruct.rs
index 3d5edb9a..9104a509 100644
--- a/fs/rsext4/src/jbd2/jbdstruct.rs
+++ b/fs/rsext4/src/jbd2/jbdstruct.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 //! # JBD2 数据结构定义
 //!
 //! 定义了 JBD2 日志系统使用的各种数据结构。
diff --git a/fs/rsext4/src/jbd2/mod.rs b/fs/rsext4/src/jbd2/mod.rs
index 28572694..132e6119 100644
--- a/fs/rsext4/src/jbd2/mod.rs
+++ b/fs/rsext4/src/jbd2/mod.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 //! # JBD2 日志系统模块
 //!
 //! 提供 ext4 文件系统的日志功能，确保文件系统的一致性和可靠性。
diff --git a/fs/rsext4/src/lib.rs b/fs/rsext4/src/lib.rs
index ec2053bb..123537e1 100644
--- a/fs/rsext4/src/lib.rs
+++ b/fs/rsext4/src/lib.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 //! # ext4_backend
 //!
 //! ext4 文件系统的核心实现模块，提供对 ext4 文件系统的底层操作支持。
diff --git a/fs/rsext4/src/loopfile.rs b/fs/rsext4/src/loopfile.rs
index 6cde2bfe..c1a637dc 100644
--- a/fs/rsext4/src/loopfile.rs
+++ b/fs/rsext4/src/loopfile.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 //! # 文件遍历和操作模块
 //!
 //! 提供文件内容读取、块解析等功能。
diff --git a/fs/rsext4/src/superblock.rs b/fs/rsext4/src/superblock.rs
index cb82f7c0..8a7a8d9b 100644
--- a/fs/rsext4/src/superblock.rs
+++ b/fs/rsext4/src/superblock.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 //! # 超级块实现模块
 //!
 //! 定义了 ext4 文件系统的超级块结构，包含文件系统的基本元数据和参数。
diff --git a/fs/rsext4/src/tool.rs b/fs/rsext4/src/tool.rs
index 2010ca27..3e6dd7ed 100644
--- a/fs/rsext4/src/tool.rs
+++ b/fs/rsext4/src/tool.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 //! # 工具函数模块
 //!
 //! 提供各种辅助函数，如 UUID 生成等。
diff --git a/io/kio/src/test_cursor.rs b/io/kio/src/test_cursor.rs
index 476da5aa..f9a0c7d3 100644
--- a/io/kio/src/test_cursor.rs
+++ b/io/kio/src/test_cursor.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 //! Unit tests for Cursor.
 
 #![cfg(unittest)]
diff --git a/io/kio/src/test_iobuf.rs b/io/kio/src/test_iobuf.rs
index e122abad..53d7c047 100644
--- a/io/kio/src/test_iobuf.rs
+++ b/io/kio/src/test_iobuf.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 //! Unit tests for IoBuf and IoBufMut.
 
 #![cfg(unittest)]
diff --git a/io/kio/src/test_seek.rs b/io/kio/src/test_seek.rs
index d019f70d..37a56a05 100644
--- a/io/kio/src/test_seek.rs
+++ b/io/kio/src/test_seek.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 //! Unit tests for Seek operations.
 
 #![cfg(unittest)]
diff --git a/net/knet/src/test_options.rs b/net/knet/src/test_options.rs
index e28948db..16e85531 100644
--- a/net/knet/src/test_options.rs
+++ b/net/knet/src/test_options.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 //! Unit tests for socket options.
 
 #![cfg(unittest)]
diff --git a/net/knet/src/test_state.rs b/net/knet/src/test_state.rs
index 23142622..618c89e5 100644
--- a/net/knet/src/test_state.rs
+++ b/net/knet/src/test_state.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 //! Unit tests for socket state management.
 
 #![cfg(unittest)]
diff --git a/process/kprocess/src/tests.rs b/process/kprocess/src/tests.rs
index 5bdaf1e2..722f8957 100644
--- a/process/kprocess/src/tests.rs
+++ b/process/kprocess/src/tests.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 //! Unit tests for kprocess
 
 #![cfg(unittest)]
diff --git a/process/ksignal/src/tests.rs b/process/ksignal/src/tests.rs
index 0fe7d2e4..52df8094 100644
--- a/process/ksignal/src/tests.rs
+++ b/process/ksignal/src/tests.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 //! Unit tests for ksignal
 
 #![cfg(unittest)]
diff --git a/process/osvm/src/tests.rs b/process/osvm/src/tests.rs
index 0543e373..37decc69 100644
--- a/process/osvm/src/tests.rs
+++ b/process/osvm/src/tests.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 //! Unit tests for osvm
 
 #![cfg(unittest)]
diff --git a/scripts/check_header.py b/scripts/check_header.py
new file mode 100644
index 00000000..def31543
--- /dev/null
+++ b/scripts/check_header.py
@@ -0,0 +1,61 @@
+import os
+
+EXPECTED_HEADER = """// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details."""
+
+def check_rs_file_headers(root_dir="."):
+    """
+    检查指定目录下的所有 .rs 文件是否包含预期的文件头。
+    返回一个缺失文件头的文件路径列表。
+    """
+    missing_headers_list = []
+    
+    for root, dirs, files in os.walk(root_dir):
+        # 忽略 target 目录以加快搜索速度
+        if 'target' in dirs:
+            dirs.remove('target')
+            
+        for file in files:
+            if file.endswith(".rs"):
+                file_path = os.path.join(root, file)
+                try:
+                    with open(file_path, 'r', encoding='utf-8') as f:
+                        # 读取文件的前几行（假设头信息在前 10 行内），以避免读取整个大文件
+                        lines = [f.readline() for _ in range(10)]
+                        content_head = "".join(lines)
+                        
+                        if EXPECTED_HEADER not in content_head:
+                            missing_headers_list.append(file_path)
+                except Exception as e:
+                    print(f"无法读取文件 {file_path}: {e}")
+                    
+    return missing_headers_list
+
+def add_missing_headers(missing_list):
+    """
+    为缺失文件头的文件添加版权头信息。
+    """
+    if not missing_list:
+        print("🎉 恭喜！所有的 .rs 文件都包含了指定的版权头信息。")
+        return
+
+    print(f"⚠️ 发现 {len(missing_list)} 个 .rs 文件缺失指定的版权头信息，正在添加...")
+    print("-" * 50)
+    for path in missing_list:
+        try:
+            with open(path, 'r', encoding='utf-8') as f:
+                content = f.read()
+            
+            with open(path, 'w', encoding='utf-8') as f:
+                f.write(EXPECTED_HEADER + "\n\n" + content)
+            print(f"已添加: {path}")
+        except Exception as e:
+            print(f"❌ 无法处理文件 {path}: {e}")
+    print("-" * 50)
+    print("✅ 处理完成！")
+
+if __name__ == "__main__":
+    # 指定项目根目录运行，默认为当前目录 '.'
+    missing_files = check_rs_file_headers(".")
+    add_missing_headers(missing_files)
\ No newline at end of file
diff --git a/tee_apps/sh/src/main.rs b/tee_apps/sh/src/main.rs
index 24850a02..592b5cd0 100644
--- a/tee_apps/sh/src/main.rs
+++ b/tee_apps/sh/src/main.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 use std::process::{Child, Command, Stdio};
 
 fn spawn_app(path: &str) -> Option<Child> {
diff --git a/tee_apps/tee_app1/src/main.rs b/tee_apps/tee_app1/src/main.rs
index 373b8f01..1788a928 100644
--- a/tee_apps/tee_app1/src/main.rs
+++ b/tee_apps/tee_app1/src/main.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 fn main() {
     println!("Hello, tee_app1!");
     let mut count = 0u64;
diff --git a/tee_apps/tee_app2/src/main.rs b/tee_apps/tee_app2/src/main.rs
index bdcbd026..ccda0b56 100644
--- a/tee_apps/tee_app2/src/main.rs
+++ b/tee_apps/tee_app2/src/main.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 fn main() {
     println!("Hello, tee_app2!");
     let mut count = 0u64;
diff --git a/util/kbuild_config/build.rs b/util/kbuild_config/build.rs
index 1a629cf9..2994c04c 100644
--- a/util/kbuild_config/build.rs
+++ b/util/kbuild_config/build.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 use std::{env, fs, path::Path};
 
 fn main() {
diff --git a/util/kbuild_config/src/lib.rs b/util/kbuild_config/src/lib.rs
index b292f19b..142973bd 100644
--- a/util/kbuild_config/src/lib.rs
+++ b/util/kbuild_config/src/lib.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 // Auto-generated kbuild configuration module
 //
 // This module provides access to configuration constants from .config file
diff --git a/xtask/crate_rootfs/src/args.rs b/xtask/crate_rootfs/src/args.rs
index 8789e7a9..6755ca18 100644
--- a/xtask/crate_rootfs/src/args.rs
+++ b/xtask/crate_rootfs/src/args.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 use std::path::PathBuf;
 
 use clap::Parser;
diff --git a/xtask/crate_rootfs/src/blockdev.rs b/xtask/crate_rootfs/src/blockdev.rs
index 5305b5ec..f7ae6460 100644
--- a/xtask/crate_rootfs/src/blockdev.rs
+++ b/xtask/crate_rootfs/src/blockdev.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 use std::{
     fs::File,
     io::{Read, Seek, SeekFrom, Write},
diff --git a/xtask/crate_rootfs/src/main.rs b/xtask/crate_rootfs/src/main.rs
index c607195f..1cb633c8 100644
--- a/xtask/crate_rootfs/src/main.rs
+++ b/xtask/crate_rootfs/src/main.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 mod args;
 mod blockdev;
 mod rootfs;
diff --git a/xtask/crate_rootfs/src/rootfs.rs b/xtask/crate_rootfs/src/rootfs.rs
index 90be4ff0..7a580e4d 100644
--- a/xtask/crate_rootfs/src/rootfs.rs
+++ b/xtask/crate_rootfs/src/rootfs.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 use std::{
     fs::{File, OpenOptions},
     io::Read,
diff --git a/xtask/crate_rootfs/src/util.rs b/xtask/crate_rootfs/src/util.rs
index 03665d37..79f5d1b1 100644
--- a/xtask/crate_rootfs/src/util.rs
+++ b/xtask/crate_rootfs/src/util.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 use std::path::Path;
 
 /// Align up to the next multiple of `align`.
diff --git a/xtask/src/main.rs b/xtask/src/main.rs
index b9543968..cdea0691 100644
--- a/xtask/src/main.rs
+++ b/xtask/src/main.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 fn main() {
     println!("Hello, xtask!");
 }
\ No newline at end of file
diff --git a/xtask/xconfig/benches/parser_bench.rs b/xtask/xconfig/benches/parser_bench.rs
index 21d11d1a..200ad84c 100644
--- a/xtask/xconfig/benches/parser_bench.rs
+++ b/xtask/xconfig/benches/parser_bench.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 use std::path::PathBuf;
 
 use criterion::{Criterion, black_box, criterion_group, criterion_main};
diff --git a/xtask/xconfig/src/cli/commands.rs b/xtask/xconfig/src/cli/commands.rs
index 7d306d59..ef832790 100644
--- a/xtask/xconfig/src/cli/commands.rs
+++ b/xtask/xconfig/src/cli/commands.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 use std::path::PathBuf;
 
 use clap::{Parser as ClapParser, Subcommand};
diff --git a/xtask/xconfig/src/cli/defconfig.rs b/xtask/xconfig/src/cli/defconfig.rs
index b790a7c4..72fd4bd4 100644
--- a/xtask/xconfig/src/cli/defconfig.rs
+++ b/xtask/xconfig/src/cli/defconfig.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 use std::path::PathBuf;
 
 use crate::error::Result;
diff --git a/xtask/xconfig/src/cli/gen_const.rs b/xtask/xconfig/src/cli/gen_const.rs
index 3baa438c..d22c5bae 100644
--- a/xtask/xconfig/src/cli/gen_const.rs
+++ b/xtask/xconfig/src/cli/gen_const.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 use std::{
     collections::HashMap,
     fs,
diff --git a/xtask/xconfig/src/cli/menuconfig.rs b/xtask/xconfig/src/cli/menuconfig.rs
index fbeb43fa..b630572e 100644
--- a/xtask/xconfig/src/cli/menuconfig.rs
+++ b/xtask/xconfig/src/cli/menuconfig.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 use std::{io, path::PathBuf};
 
 use crossterm::{
diff --git a/xtask/xconfig/src/cli/mod.rs b/xtask/xconfig/src/cli/mod.rs
index 6b521ae2..1bf6ef76 100644
--- a/xtask/xconfig/src/cli/mod.rs
+++ b/xtask/xconfig/src/cli/mod.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 pub mod commands;
 pub mod defconfig;
 pub mod gen_const;
diff --git a/xtask/xconfig/src/cli/oldconfig.rs b/xtask/xconfig/src/cli/oldconfig.rs
index ce379f04..0c9ef8da 100644
--- a/xtask/xconfig/src/cli/oldconfig.rs
+++ b/xtask/xconfig/src/cli/oldconfig.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 use std::path::PathBuf;
 
 use crate::{
diff --git a/xtask/xconfig/src/cli/saveconfig.rs b/xtask/xconfig/src/cli/saveconfig.rs
index 0802fe0d..160916a7 100644
--- a/xtask/xconfig/src/cli/saveconfig.rs
+++ b/xtask/xconfig/src/cli/saveconfig.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 use std::path::PathBuf;
 
 use crate::{
diff --git a/xtask/xconfig/src/config/generator.rs b/xtask/xconfig/src/config/generator.rs
index 47bec42f..bd0e8dda 100644
--- a/xtask/xconfig/src/config/generator.rs
+++ b/xtask/xconfig/src/config/generator.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 use std::{collections::HashMap, fs::File, io::Write, path::Path};
 
 use crate::{
diff --git a/xtask/xconfig/src/config/mod.rs b/xtask/xconfig/src/config/mod.rs
index ddac4425..aeb11bf8 100644
--- a/xtask/xconfig/src/config/mod.rs
+++ b/xtask/xconfig/src/config/mod.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 pub mod generator;
 pub mod oldconfig;
 pub mod reader;
diff --git a/xtask/xconfig/src/config/oldconfig.rs b/xtask/xconfig/src/config/oldconfig.rs
index 6111d993..4e672c06 100644
--- a/xtask/xconfig/src/config/oldconfig.rs
+++ b/xtask/xconfig/src/config/oldconfig.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 use std::{collections::HashSet, path::Path};
 
 use crate::{
diff --git a/xtask/xconfig/src/config/reader.rs b/xtask/xconfig/src/config/reader.rs
index 44933e71..fcdc2ce4 100644
--- a/xtask/xconfig/src/config/reader.rs
+++ b/xtask/xconfig/src/config/reader.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 use std::{collections::HashMap, fs, path::Path};
 
 use crate::error::Result;
diff --git a/xtask/xconfig/src/config/writer.rs b/xtask/xconfig/src/config/writer.rs
index 1cde8cc9..f9f54fb1 100644
--- a/xtask/xconfig/src/config/writer.rs
+++ b/xtask/xconfig/src/config/writer.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 use std::{fs::File, io::Write, path::Path};
 
 use crate::{error::Result, kconfig::SymbolTable};
diff --git a/xtask/xconfig/src/error.rs b/xtask/xconfig/src/error.rs
index dae5a3bf..8245e368 100644
--- a/xtask/xconfig/src/error.rs
+++ b/xtask/xconfig/src/error.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 use std::path::PathBuf;
 
 use thiserror::Error;
diff --git a/xtask/xconfig/src/kconfig/ast.rs b/xtask/xconfig/src/kconfig/ast.rs
index 8781f715..8f9ab4a5 100644
--- a/xtask/xconfig/src/kconfig/ast.rs
+++ b/xtask/xconfig/src/kconfig/ast.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 use std::path::PathBuf;
 
 #[derive(Debug, Clone, PartialEq)]
diff --git a/xtask/xconfig/src/kconfig/expr.rs b/xtask/xconfig/src/kconfig/expr.rs
index 0e45751f..439853e1 100644
--- a/xtask/xconfig/src/kconfig/expr.rs
+++ b/xtask/xconfig/src/kconfig/expr.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 use crate::{
     error::{KconfigError, Result},
     kconfig::{ast::Expr, shell_expr::evaluate_shell_expr, symbol::SymbolTable},
diff --git a/xtask/xconfig/src/kconfig/lexer.rs b/xtask/xconfig/src/kconfig/lexer.rs
index 785f15d1..1158fa65 100644
--- a/xtask/xconfig/src/kconfig/lexer.rs
+++ b/xtask/xconfig/src/kconfig/lexer.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 use std::path::PathBuf;
 
 use crate::error::{KconfigError, Result};
diff --git a/xtask/xconfig/src/kconfig/mod.rs b/xtask/xconfig/src/kconfig/mod.rs
index e322f26b..93224572 100644
--- a/xtask/xconfig/src/kconfig/mod.rs
+++ b/xtask/xconfig/src/kconfig/mod.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 pub mod ast;
 pub mod expr;
 pub mod lexer;
diff --git a/xtask/xconfig/src/kconfig/parser.rs b/xtask/xconfig/src/kconfig/parser.rs
index 1051ef41..0b50d2d0 100644
--- a/xtask/xconfig/src/kconfig/parser.rs
+++ b/xtask/xconfig/src/kconfig/parser.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 use std::{
     collections::HashSet,
     fs,
diff --git a/xtask/xconfig/src/kconfig/shell_expr.rs b/xtask/xconfig/src/kconfig/shell_expr.rs
index 145660ad..649998c2 100644
--- a/xtask/xconfig/src/kconfig/shell_expr.rs
+++ b/xtask/xconfig/src/kconfig/shell_expr.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 use crate::{
     error::{KconfigError, Result},
     kconfig::symbol::SymbolTable,
diff --git a/xtask/xconfig/src/kconfig/symbol.rs b/xtask/xconfig/src/kconfig/symbol.rs
index c038a0e1..ddcb3ddf 100644
--- a/xtask/xconfig/src/kconfig/symbol.rs
+++ b/xtask/xconfig/src/kconfig/symbol.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 use std::collections::HashMap;
 
 use crate::kconfig::ast::SymbolType;
diff --git a/xtask/xconfig/src/lib.rs b/xtask/xconfig/src/lib.rs
index e2c707ef..b3638585 100644
--- a/xtask/xconfig/src/lib.rs
+++ b/xtask/xconfig/src/lib.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 pub mod cli;
 pub mod config;
 pub mod error;
diff --git a/xtask/xconfig/src/log.rs b/xtask/xconfig/src/log.rs
index c293b7d1..93fe4eda 100644
--- a/xtask/xconfig/src/log.rs
+++ b/xtask/xconfig/src/log.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 #[cfg(unix)]
 use std::os::unix::fs::OpenOptionsExt;
 use std::sync::OnceLock;
diff --git a/xtask/xconfig/src/main.rs b/xtask/xconfig/src/main.rs
index 02ea0cbd..468d9c69 100644
--- a/xtask/xconfig/src/main.rs
+++ b/xtask/xconfig/src/main.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 use xconfig::cli::run_cli;
 
 fn main() {
diff --git a/xtask/xconfig/src/ui/app.rs b/xtask/xconfig/src/ui/app.rs
index feeac043..a1a84165 100644
--- a/xtask/xconfig/src/ui/app.rs
+++ b/xtask/xconfig/src/ui/app.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 use std::{io::Write, time::Duration};
 
 use crossterm::event::{self, Event, KeyCode, KeyEvent};
diff --git a/xtask/xconfig/src/ui/dependency_resolver.rs b/xtask/xconfig/src/ui/dependency_resolver.rs
index 7aef3e86..f1c6fa3b 100644
--- a/xtask/xconfig/src/ui/dependency_resolver.rs
+++ b/xtask/xconfig/src/ui/dependency_resolver.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 use std::collections::HashMap;
 
 use crate::kconfig::{
diff --git a/xtask/xconfig/src/ui/events/handler.rs b/xtask/xconfig/src/ui/events/handler.rs
index c7b34a96..683571e2 100644
--- a/xtask/xconfig/src/ui/events/handler.rs
+++ b/xtask/xconfig/src/ui/events/handler.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 #[derive(Debug, Clone, Copy, PartialEq, Eq)]
 pub enum EventResult {
     Continue,
diff --git a/xtask/xconfig/src/ui/events/mod.rs b/xtask/xconfig/src/ui/events/mod.rs
index 4bc7dc7f..fb7ced11 100644
--- a/xtask/xconfig/src/ui/events/mod.rs
+++ b/xtask/xconfig/src/ui/events/mod.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 pub mod handler;
 
 pub use handler::{EventHandler, EventResult};
diff --git a/xtask/xconfig/src/ui/mod.rs b/xtask/xconfig/src/ui/mod.rs
index 4d9e6cda..8eee578b 100644
--- a/xtask/xconfig/src/ui/mod.rs
+++ b/xtask/xconfig/src/ui/mod.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 pub mod app;
 pub mod dependency_resolver;
 pub mod events;
diff --git a/xtask/xconfig/src/ui/rendering/mod.rs b/xtask/xconfig/src/ui/rendering/mod.rs
index 3104c3fe..2760024b 100644
--- a/xtask/xconfig/src/ui/rendering/mod.rs
+++ b/xtask/xconfig/src/ui/rendering/mod.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 pub mod theme;
 
 pub use theme::Theme;
diff --git a/xtask/xconfig/src/ui/rendering/theme.rs b/xtask/xconfig/src/ui/rendering/theme.rs
index cc6399f6..ad177444 100644
--- a/xtask/xconfig/src/ui/rendering/theme.rs
+++ b/xtask/xconfig/src/ui/rendering/theme.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 use ratatui::style::{Color, Modifier, Style};
 
 #[derive(Debug, Clone)]
diff --git a/xtask/xconfig/src/ui/state/mod.rs b/xtask/xconfig/src/ui/state/mod.rs
index 921375c9..ce5f7007 100644
--- a/xtask/xconfig/src/ui/state/mod.rs
+++ b/xtask/xconfig/src/ui/state/mod.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 use std::{collections::HashMap, io::Write};
 
 use crate::{
diff --git a/xtask/xconfig/src/ui/utils/fuzzy_search.rs b/xtask/xconfig/src/ui/utils/fuzzy_search.rs
index 520c7a99..517f155d 100644
--- a/xtask/xconfig/src/ui/utils/fuzzy_search.rs
+++ b/xtask/xconfig/src/ui/utils/fuzzy_search.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 use crate::ui::state::MenuItem;
 
 pub struct FuzzySearcher {
diff --git a/xtask/xconfig/src/ui/utils/mod.rs b/xtask/xconfig/src/ui/utils/mod.rs
index 9a85027e..a666f9b7 100644
--- a/xtask/xconfig/src/ui/utils/mod.rs
+++ b/xtask/xconfig/src/ui/utils/mod.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 pub mod fuzzy_search;
 
 pub use fuzzy_search::{FuzzySearcher, SearchResult};
diff --git a/xtask/xconfig/tests/arch_config_bugs_test.rs b/xtask/xconfig/tests/arch_config_bugs_test.rs
index d68230f7..6cca3d9b 100644
--- a/xtask/xconfig/tests/arch_config_bugs_test.rs
+++ b/xtask/xconfig/tests/arch_config_bugs_test.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 /// Tests for Bug 1: ARCH config value is incorrect when loading defconfig with ARCH_X86_64=y
 /// Tests for Bug 2: Cross-architecture configuration pollution from defconfig
 use std::fs;
diff --git a/xtask/xconfig/tests/choice_defaults_test.rs b/xtask/xconfig/tests/choice_defaults_test.rs
index e7fd9300..0a8ab5d8 100644
--- a/xtask/xconfig/tests/choice_defaults_test.rs
+++ b/xtask/xconfig/tests/choice_defaults_test.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 use std::fs;
 
 use tempfile::TempDir;
diff --git a/xtask/xconfig/tests/choice_mutual_exclusion_test.rs b/xtask/xconfig/tests/choice_mutual_exclusion_test.rs
index 2638d5b6..bafe5ce9 100644
--- a/xtask/xconfig/tests/choice_mutual_exclusion_test.rs
+++ b/xtask/xconfig/tests/choice_mutual_exclusion_test.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 use std::io::Write;
 
 use tempfile::NamedTempFile;
diff --git a/xtask/xconfig/tests/config_tests.rs b/xtask/xconfig/tests/config_tests.rs
index e77e9a45..4d07b3f2 100644
--- a/xtask/xconfig/tests/config_tests.rs
+++ b/xtask/xconfig/tests/config_tests.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 use std::fs;
 
 use tempfile::TempDir;
diff --git a/xtask/xconfig/tests/dependency_display_test.rs b/xtask/xconfig/tests/dependency_display_test.rs
index 3d41603d..48d15262 100644
--- a/xtask/xconfig/tests/dependency_display_test.rs
+++ b/xtask/xconfig/tests/dependency_display_test.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 use std::path::PathBuf;
 
 use xconfig::{kconfig::Parser, ui::state::ConfigState};
diff --git a/xtask/xconfig/tests/dependency_not_operator_test.rs b/xtask/xconfig/tests/dependency_not_operator_test.rs
index 7d582b5c..b7247803 100644
--- a/xtask/xconfig/tests/dependency_not_operator_test.rs
+++ b/xtask/xconfig/tests/dependency_not_operator_test.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 use std::path::PathBuf;
 
 use xconfig::{
diff --git a/xtask/xconfig/tests/dependency_tests.rs b/xtask/xconfig/tests/dependency_tests.rs
index aa65baf0..70a2fabb 100644
--- a/xtask/xconfig/tests/dependency_tests.rs
+++ b/xtask/xconfig/tests/dependency_tests.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 use std::path::PathBuf;
 
 use xconfig::{
diff --git a/xtask/xconfig/tests/end_to_end_range_test.rs b/xtask/xconfig/tests/end_to_end_range_test.rs
index b333df83..16d54d13 100644
--- a/xtask/xconfig/tests/end_to_end_range_test.rs
+++ b/xtask/xconfig/tests/end_to_end_range_test.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 use std::fs;
 
 use tempfile::TempDir;
diff --git a/xtask/xconfig/tests/if_block_test.rs b/xtask/xconfig/tests/if_block_test.rs
index e363ac54..d24e4bfa 100644
--- a/xtask/xconfig/tests/if_block_test.rs
+++ b/xtask/xconfig/tests/if_block_test.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 use std::fs;
 
 use tempfile::TempDir;
diff --git a/xtask/xconfig/tests/integration_tests.rs b/xtask/xconfig/tests/integration_tests.rs
index eb9bcf22..1a5adec5 100644
--- a/xtask/xconfig/tests/integration_tests.rs
+++ b/xtask/xconfig/tests/integration_tests.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 use std::path::PathBuf;
 
 use tempfile::TempDir;
diff --git a/xtask/xconfig/tests/lexer_tests.rs b/xtask/xconfig/tests/lexer_tests.rs
index ce4e43d4..ca7fa2d1 100644
--- a/xtask/xconfig/tests/lexer_tests.rs
+++ b/xtask/xconfig/tests/lexer_tests.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 use std::path::PathBuf;
 
 use xconfig::kconfig::{Lexer, Token};
diff --git a/xtask/xconfig/tests/menu_navigation_test.rs b/xtask/xconfig/tests/menu_navigation_test.rs
index 83fb3b40..64158f24 100644
--- a/xtask/xconfig/tests/menu_navigation_test.rs
+++ b/xtask/xconfig/tests/menu_navigation_test.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 use std::path::PathBuf;
 
 use xconfig::{
diff --git a/xtask/xconfig/tests/menuconfig_defaults_test.rs b/xtask/xconfig/tests/menuconfig_defaults_test.rs
index a414fa14..7a1b2334 100644
--- a/xtask/xconfig/tests/menuconfig_defaults_test.rs
+++ b/xtask/xconfig/tests/menuconfig_defaults_test.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 use xconfig::{
     config::ConfigReader,
     kconfig::{SymbolTable, SymbolType},
diff --git a/xtask/xconfig/tests/menuconfig_ghost_filter_test.rs b/xtask/xconfig/tests/menuconfig_ghost_filter_test.rs
index 1b9b8159..261e4460 100644
--- a/xtask/xconfig/tests/menuconfig_ghost_filter_test.rs
+++ b/xtask/xconfig/tests/menuconfig_ghost_filter_test.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 //! Tests for ghost config filtering in menuconfig
 //!
 //! Verifies that configs with unsatisfied dependencies are cleared when loading .config
diff --git a/xtask/xconfig/tests/parser_tests.rs b/xtask/xconfig/tests/parser_tests.rs
index baf4138d..dc43a192 100644
--- a/xtask/xconfig/tests/parser_tests.rs
+++ b/xtask/xconfig/tests/parser_tests.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 use std::path::PathBuf;
 
 use xconfig::kconfig::Parser;
diff --git a/xtask/xconfig/tests/range_array_tests.rs b/xtask/xconfig/tests/range_array_tests.rs
index 2abf114e..d13a747b 100644
--- a/xtask/xconfig/tests/range_array_tests.rs
+++ b/xtask/xconfig/tests/range_array_tests.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 use std::path::PathBuf;
 
 use xconfig::kconfig::{
diff --git a/xtask/xconfig/tests/range_test.rs b/xtask/xconfig/tests/range_test.rs
index a2246fbc..5ac3b29d 100644
--- a/xtask/xconfig/tests/range_test.rs
+++ b/xtask/xconfig/tests/range_test.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 use std::fs;
 
 use tempfile::TempDir;
diff --git a/xtask/xconfig/tests/search_navigation_test.rs b/xtask/xconfig/tests/search_navigation_test.rs
index 4f5bd9eb..7a14ca16 100644
--- a/xtask/xconfig/tests/search_navigation_test.rs
+++ b/xtask/xconfig/tests/search_navigation_test.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 use std::path::PathBuf;
 
 use xconfig::{kconfig::Parser, ui::app::MenuConfigApp};
diff --git a/xtask/xconfig/tests/source_tests.rs b/xtask/xconfig/tests/source_tests.rs
index 405f7fc7..5b2e57d2 100644
--- a/xtask/xconfig/tests/source_tests.rs
+++ b/xtask/xconfig/tests/source_tests.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 use std::path::PathBuf;
 
 use xconfig::kconfig::Parser;
diff --git a/xtask/xconfig/tests/stable_ordering_test.rs b/xtask/xconfig/tests/stable_ordering_test.rs
index f989e23d..bef65357 100644
--- a/xtask/xconfig/tests/stable_ordering_test.rs
+++ b/xtask/xconfig/tests/stable_ordering_test.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 use std::fs;
 
 use tempfile::TempDir;
diff --git a/xtask/xconfig/tests/ui_checkbox_sync_test.rs b/xtask/xconfig/tests/ui_checkbox_sync_test.rs
index dbe2122e..caf5a324 100644
--- a/xtask/xconfig/tests/ui_checkbox_sync_test.rs
+++ b/xtask/xconfig/tests/ui_checkbox_sync_test.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 //! Tests for checkbox state synchronization in MenuConfigApp
 //!
 //! # Testing Limitations
diff --git a/xtask/xconfig/tests/ui_tests.rs b/xtask/xconfig/tests/ui_tests.rs
index d8559a77..bbb87dfd 100644
--- a/xtask/xconfig/tests/ui_tests.rs
+++ b/xtask/xconfig/tests/ui_tests.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 use std::path::PathBuf;
 
 use xconfig::{
diff --git a/xtask/xconfig/tests/visibility_filtering_test.rs b/xtask/xconfig/tests/visibility_filtering_test.rs
index 3cd7a35e..4a8e2dcb 100644
--- a/xtask/xconfig/tests/visibility_filtering_test.rs
+++ b/xtask/xconfig/tests/visibility_filtering_test.rs
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright 2025 KylinSoft Co., Ltd. <https://www.kylinos.cn/>
+// See LICENSES for license details.
+
 use std::fs;
 
 use tempfile::TempDir;