diff --git a/src/core/file_sys/hostio/host_io.h b/src/core/file_sys/hostio/host_io.h
index 3ce0e79e1..ac9ffc055 100644
--- a/src/core/file_sys/hostio/host_io.h
+++ b/src/core/file_sys/hostio/host_io.h
@@ -1,3 +1,5 @@
+// SPDX-FileCopyrightText: Copyright 2025 shadPS4 Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
 // INAA License @marecl 2025
 
 #pragma once
diff --git a/src/core/file_sys/hostio/host_io_posix.h b/src/core/file_sys/hostio/host_io_posix.h
index e5ea413b4..e30419c7e 100644
--- a/src/core/file_sys/hostio/host_io_posix.h
+++ b/src/core/file_sys/hostio/host_io_posix.h
@@ -1,3 +1,5 @@
+// SPDX-FileCopyrightText: Copyright 2025 shadPS4 Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
 // INAA License @marecl 2025
 
 #pragma once
@@ -9,6 +11,7 @@
 #include "core/file_sys/quasifs/quasi_sys_fcntl.h"
 #include "core/file_sys/quasifs/quasi_types.h"
 #include "core/libraries/kernel/file_system.h"
+
 #include "src/host_io_base.h"
 
 namespace HostIODriver {
diff --git a/src/core/file_sys/hostio/host_io_virtual.h b/src/core/file_sys/hostio/host_io_virtual.h
index d23972aa1..b2fdddf21 100644
--- a/src/core/file_sys/hostio/host_io_virtual.h
+++ b/src/core/file_sys/hostio/host_io_virtual.h
@@ -1,9 +1,12 @@
+// SPDX-FileCopyrightText: Copyright 2025 shadPS4 Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
 // INAA License @marecl 2025
 
 #pragma once
 
 #include "core/file_sys/quasifs/quasi_types.h"
 #include "core/libraries/kernel/file_system.h"
+
 #include "src/host_io_base.h"
 
 namespace HostIODriver {
diff --git a/src/core/file_sys/hostio/host_io_win32.h b/src/core/file_sys/hostio/host_io_win32.h
index 9c77d4bba..d1e9079bf 100644
--- a/src/core/file_sys/hostio/host_io_win32.h
+++ b/src/core/file_sys/hostio/host_io_win32.h
@@ -1,3 +1,5 @@
+// SPDX-FileCopyrightText: Copyright 2025 shadPS4 Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
 // INAA License @marecl 2025
 
 #pragma once
@@ -9,7 +11,9 @@
 #include <fcntl.h>
 #include <windows.h>
 
+#include "common/logging/log.h"
 #include "core/file_sys/quasifs/quasi_sys_fcntl.h"
+
 #include "src/host_io_base.h"
 
 namespace HostIODriver {
diff --git a/src/core/file_sys/hostio/src/host_io_base.cpp b/src/core/file_sys/hostio/src/host_io_base.cpp
index 4143004e0..37526f646 100644
--- a/src/core/file_sys/hostio/src/host_io_base.cpp
+++ b/src/core/file_sys/hostio/src/host_io_base.cpp
@@ -1,3 +1,5 @@
+// SPDX-FileCopyrightText: Copyright 2025 shadPS4 Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
 // INAA License @marecl 2025
 
 #include <filesystem>
diff --git a/src/core/file_sys/hostio/src/host_io_base.h b/src/core/file_sys/hostio/src/host_io_base.h
index 7bd9cbc73..b7544aeef 100644
--- a/src/core/file_sys/hostio/src/host_io_base.h
+++ b/src/core/file_sys/hostio/src/host_io_base.h
@@ -1,3 +1,5 @@
+// SPDX-FileCopyrightText: Copyright 2025 shadPS4 Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
 // INAA License @marecl 2025
 
 #pragma once
diff --git a/src/core/file_sys/hostio/src/host_io_posix.cpp b/src/core/file_sys/hostio/src/host_io_posix.cpp
index 7ca701a10..cf2d3efdb 100644
--- a/src/core/file_sys/hostio/src/host_io_posix.cpp
+++ b/src/core/file_sys/hostio/src/host_io_posix.cpp
@@ -1,3 +1,5 @@
+// SPDX-FileCopyrightText: Copyright 2025 shadPS4 Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
 // INAA License @marecl 2025
 
 #include <cstdint>
diff --git a/src/core/file_sys/hostio/src/host_io_virtual.cpp b/src/core/file_sys/hostio/src/host_io_virtual.cpp
index 1612b679f..7f044606b 100644
--- a/src/core/file_sys/hostio/src/host_io_virtual.cpp
+++ b/src/core/file_sys/hostio/src/host_io_virtual.cpp
@@ -1,3 +1,5 @@
+// SPDX-FileCopyrightText: Copyright 2025 shadPS4 Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
 // INAA License @marecl 2025
 
 #include <cstring>
diff --git a/src/core/file_sys/hostio/src/host_io_win32.cpp b/src/core/file_sys/hostio/src/host_io_win32.cpp
index 7a2140eb9..fbef4b1e9 100644
--- a/src/core/file_sys/hostio/src/host_io_win32.cpp
+++ b/src/core/file_sys/hostio/src/host_io_win32.cpp
@@ -1,3 +1,5 @@
+// SPDX-FileCopyrightText: Copyright 2025 shadPS4 Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
 // INAA License @marecl 2025
 
 #include <errno.h>
diff --git a/src/core/file_sys/quasifs/quasi_sys_fcntl.h b/src/core/file_sys/quasifs/quasi_sys_fcntl.h
index d5bc8e134..32a873f0f 100644
--- a/src/core/file_sys/quasifs/quasi_sys_fcntl.h
+++ b/src/core/file_sys/quasifs/quasi_sys_fcntl.h
@@ -1,3 +1,5 @@
+// SPDX-FileCopyrightText: Copyright 2025 shadPS4 Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
 // INAA License @marecl 2025
 
 #pragma once
diff --git a/src/core/file_sys/quasifs/quasi_sys_stat.h b/src/core/file_sys/quasifs/quasi_sys_stat.h
index 0e4d5fa77..2a26dc8a1 100644
--- a/src/core/file_sys/quasifs/quasi_sys_stat.h
+++ b/src/core/file_sys/quasifs/quasi_sys_stat.h
@@ -1,3 +1,5 @@
+// SPDX-FileCopyrightText: Copyright 2025 shadPS4 Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
 // INAA License @marecl 2025
 
 #pragma once
diff --git a/src/core/file_sys/quasifs/quasi_types.h b/src/core/file_sys/quasifs/quasi_types.h
index 64b9b7008..a28f3bc33 100644
--- a/src/core/file_sys/quasifs/quasi_types.h
+++ b/src/core/file_sys/quasifs/quasi_types.h
@@ -1,3 +1,5 @@
+// SPDX-FileCopyrightText: Copyright 2025 shadPS4 Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
 // INAA License @marecl 2025
 
 #pragma once
diff --git a/src/core/file_sys/quasifs/quasifs.h b/src/core/file_sys/quasifs/quasifs.h
index bd3abd9de..2199a96ef 100644
--- a/src/core/file_sys/quasifs/quasifs.h
+++ b/src/core/file_sys/quasifs/quasifs.h
@@ -1,3 +1,5 @@
+// SPDX-FileCopyrightText: Copyright 2025 shadPS4 Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
 // INAA License @marecl 2025
 
 #pragma once
diff --git a/src/core/file_sys/quasifs/quasifs_inode.h b/src/core/file_sys/quasifs/quasifs_inode.h
index efb901fed..33aaa6e0d 100644
--- a/src/core/file_sys/quasifs/quasifs_inode.h
+++ b/src/core/file_sys/quasifs/quasifs_inode.h
@@ -1,3 +1,5 @@
+// SPDX-FileCopyrightText: Copyright 2025 shadPS4 Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
 // INAA License @marecl 2025
 
 #pragma once
diff --git a/src/core/file_sys/quasifs/quasifs_inode_quasi_device.h b/src/core/file_sys/quasifs/quasifs_inode_quasi_device.h
index 0753bb295..87d0afa89 100644
--- a/src/core/file_sys/quasifs/quasifs_inode_quasi_device.h
+++ b/src/core/file_sys/quasifs/quasifs_inode_quasi_device.h
@@ -1,3 +1,5 @@
+// SPDX-FileCopyrightText: Copyright 2025 shadPS4 Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
 // INAA License @marecl 2025
 
 #pragma once
diff --git a/src/core/file_sys/quasifs/quasifs_inode_quasi_directory.h b/src/core/file_sys/quasifs/quasifs_inode_quasi_directory.h
index ffb66eae2..3e2cf1c0a 100644
--- a/src/core/file_sys/quasifs/quasifs_inode_quasi_directory.h
+++ b/src/core/file_sys/quasifs/quasifs_inode_quasi_directory.h
@@ -1,3 +1,5 @@
+// SPDX-FileCopyrightText: Copyright 2025 shadPS4 Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
 // INAA License @marecl 2025
 
 #pragma once
diff --git a/src/core/file_sys/quasifs/quasifs_inode_quasi_directory_pfs.h b/src/core/file_sys/quasifs/quasifs_inode_quasi_directory_pfs.h
index 012090f0c..be74ea267 100644
--- a/src/core/file_sys/quasifs/quasifs_inode_quasi_directory_pfs.h
+++ b/src/core/file_sys/quasifs/quasifs_inode_quasi_directory_pfs.h
@@ -1,3 +1,5 @@
+// SPDX-FileCopyrightText: Copyright 2025 shadPS4 Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
 // INAA License @marecl 2025
 
 #pragma once
diff --git a/src/core/file_sys/quasifs/quasifs_inode_quasi_file.h b/src/core/file_sys/quasifs/quasifs_inode_quasi_file.h
index 9ebd10d58..e68b38ffc 100644
--- a/src/core/file_sys/quasifs/quasifs_inode_quasi_file.h
+++ b/src/core/file_sys/quasifs/quasifs_inode_quasi_file.h
@@ -1,3 +1,5 @@
+// SPDX-FileCopyrightText: Copyright 2025 shadPS4 Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
 // INAA License @marecl 2025
 
 #pragma once
diff --git a/src/core/file_sys/quasifs/quasifs_inode_quasi_file_virtual.h b/src/core/file_sys/quasifs/quasifs_inode_quasi_file_virtual.h
index 8d998860e..b72452b7b 100644
--- a/src/core/file_sys/quasifs/quasifs_inode_quasi_file_virtual.h
+++ b/src/core/file_sys/quasifs/quasifs_inode_quasi_file_virtual.h
@@ -1,3 +1,5 @@
+// SPDX-FileCopyrightText: Copyright 2025 shadPS4 Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
 // INAA License @marecl 2025
 
 #pragma once
diff --git a/src/core/file_sys/quasifs/quasifs_inode_quasi_socket.h b/src/core/file_sys/quasifs/quasifs_inode_quasi_socket.h
index c8b1c2c6d..3f516db0a 100644
--- a/src/core/file_sys/quasifs/quasifs_inode_quasi_socket.h
+++ b/src/core/file_sys/quasifs/quasifs_inode_quasi_socket.h
@@ -1,3 +1,5 @@
+// SPDX-FileCopyrightText: Copyright 2025 shadPS4 Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
 // INAA License @marecl 2025
 
 #pragma once
diff --git a/src/core/file_sys/quasifs/quasifs_inode_symlink.h b/src/core/file_sys/quasifs/quasifs_inode_symlink.h
index e83953823..e1bb77b74 100644
--- a/src/core/file_sys/quasifs/quasifs_inode_symlink.h
+++ b/src/core/file_sys/quasifs/quasifs_inode_symlink.h
@@ -1,3 +1,5 @@
+// SPDX-FileCopyrightText: Copyright 2025 shadPS4 Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
 // INAA License @marecl 2025
 
 #pragma once
diff --git a/src/core/file_sys/quasifs/quasifs_partition.h b/src/core/file_sys/quasifs/quasifs_partition.h
index ad80326e8..f020c8770 100644
--- a/src/core/file_sys/quasifs/quasifs_partition.h
+++ b/src/core/file_sys/quasifs/quasifs_partition.h
@@ -1,3 +1,5 @@
+// SPDX-FileCopyrightText: Copyright 2025 shadPS4 Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
 // INAA License @marecl 2025
 
 #pragma once
diff --git a/src/core/file_sys/quasifs/src/quasifs.cpp b/src/core/file_sys/quasifs/src/quasifs.cpp
index 875d5c8b6..d445d483c 100644
--- a/src/core/file_sys/quasifs/src/quasifs.cpp
+++ b/src/core/file_sys/quasifs/src/quasifs.cpp
@@ -1,3 +1,5 @@
+// SPDX-FileCopyrightText: Copyright 2025 shadPS4 Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
 // INAA License @marecl 2025
 
 #include <iostream>
diff --git a/src/core/file_sys/quasifs/src/quasifs_inode_quasi_device.cpp b/src/core/file_sys/quasifs/src/quasifs_inode_quasi_device.cpp
index c3e21f6b0..c4c5e0046 100644
--- a/src/core/file_sys/quasifs/src/quasifs_inode_quasi_device.cpp
+++ b/src/core/file_sys/quasifs/src/quasifs_inode_quasi_device.cpp
@@ -1,3 +1,5 @@
+// SPDX-FileCopyrightText: Copyright 2025 shadPS4 Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
 // INAA License @marecl 2025
 
 #include "core/file_sys/quasifs/quasifs_inode_quasi_device.h"
diff --git a/src/core/file_sys/quasifs/src/quasifs_inode_quasi_directory.cpp b/src/core/file_sys/quasifs/src/quasifs_inode_quasi_directory.cpp
index b19a62225..555745c69 100644
--- a/src/core/file_sys/quasifs/src/quasifs_inode_quasi_directory.cpp
+++ b/src/core/file_sys/quasifs/src/quasifs_inode_quasi_directory.cpp
@@ -1,3 +1,5 @@
+// SPDX-FileCopyrightText: Copyright 2025 shadPS4 Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
 // INAA License @marecl 2025
 
 #include <map>
diff --git a/src/core/file_sys/quasifs/src/quasifs_inode_quasi_file.cpp b/src/core/file_sys/quasifs/src/quasifs_inode_quasi_file.cpp
index 7972e36ca..f8074369e 100644
--- a/src/core/file_sys/quasifs/src/quasifs_inode_quasi_file.cpp
+++ b/src/core/file_sys/quasifs/src/quasifs_inode_quasi_file.cpp
@@ -1,3 +1,5 @@
+// SPDX-FileCopyrightText: Copyright 2025 shadPS4 Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
 // INAA License @marecl 2025
 
 #include <vector>
diff --git a/src/core/file_sys/quasifs/src/quasifs_inode_quasi_file_virtual.cpp b/src/core/file_sys/quasifs/src/quasifs_inode_quasi_file_virtual.cpp
index a0dbd5c50..083cd28f1 100644
--- a/src/core/file_sys/quasifs/src/quasifs_inode_quasi_file_virtual.cpp
+++ b/src/core/file_sys/quasifs/src/quasifs_inode_quasi_file_virtual.cpp
@@ -1,3 +1,5 @@
+// SPDX-FileCopyrightText: Copyright 2025 shadPS4 Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
 // INAA License @marecl 2025
 
 #include <vector>
diff --git a/src/core/file_sys/quasifs/src/quasifs_inode_quasi_socket.cpp b/src/core/file_sys/quasifs/src/quasifs_inode_quasi_socket.cpp
index 17c677bf2..2cbf136cc 100644
--- a/src/core/file_sys/quasifs/src/quasifs_inode_quasi_socket.cpp
+++ b/src/core/file_sys/quasifs/src/quasifs_inode_quasi_socket.cpp
@@ -1,3 +1,5 @@
+// SPDX-FileCopyrightText: Copyright 2025 shadPS4 Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
 // INAA License @marecl 2025
 
 #include "core/file_sys/quasifs/quasifs_inode_quasi_socket.h"
diff --git a/src/core/file_sys/quasifs/src/quasifs_inode_symlink.cpp b/src/core/file_sys/quasifs/src/quasifs_inode_symlink.cpp
index aed448754..58db2b27e 100644
--- a/src/core/file_sys/quasifs/src/quasifs_inode_symlink.cpp
+++ b/src/core/file_sys/quasifs/src/quasifs_inode_symlink.cpp
@@ -1,3 +1,5 @@
+// SPDX-FileCopyrightText: Copyright 2025 shadPS4 Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
 // INAA License @marecl 2025
 
 #include "core/file_sys/quasifs/quasifs_inode_symlink.h"
diff --git a/src/core/file_sys/quasifs/src/quasifs_partition.cpp b/src/core/file_sys/quasifs/src/quasifs_partition.cpp
index 6c91a7551..2858655e5 100644
--- a/src/core/file_sys/quasifs/src/quasifs_partition.cpp
+++ b/src/core/file_sys/quasifs/src/quasifs_partition.cpp
@@ -1,3 +1,5 @@
+// SPDX-FileCopyrightText: Copyright 2025 shadPS4 Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
 // INAA License @marecl 2025
 
 #include "common/logging/log.h"
diff --git a/src/core/file_sys/quasifs/src/quasifs_vdriver.cpp b/src/core/file_sys/quasifs/src/quasifs_vdriver.cpp
index 245eb9314..5d3450cda 100644
--- a/src/core/file_sys/quasifs/src/quasifs_vdriver.cpp
+++ b/src/core/file_sys/quasifs/src/quasifs_vdriver.cpp
@@ -1,3 +1,5 @@
+// SPDX-FileCopyrightText: Copyright 2025 shadPS4 Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
 // INAA License @marecl 2025
 
 #include <cstring>