diff git a/hw/acpi_ich9.c b/hw/acpi_ich9.c
index 61034d3..25c9d36 100644
 a/hw/acpi_ich9.c
+++ b/hw/acpi_ich9.c
@@ 2,6 +2,11 @@
* ACPI implementation
*
* Copyright (c) 2006 Fabrice Bellard
+ * Copyright (c) 2009 Isaku Yamahata
+ * VA Linux Systems Japan K.K.
+ * Copyright (C) 2012 Jason Baron
+ *
+ * This is based on acpi.c.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
@@ 14,13 +19,9 @@
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, see
 */
/*
 * Copyright (c) 2009 Isaku Yamahata
 * VA Linux Systems Japan K.K.
 * Copyright (C) 2012 Jason Baron
*
 * This is based on acpi.c.
+ * Contributions after 20120113 are licensed under the terms of the
+ * GNU GPL, version 2 or (at your option) any later version.
*/
#include "hw.h"
#include "pc.h"
diff git a/hw/lpc_ich9.c b/hw/lpc_ich9.c
index 4116c50..90129db 100644
 a/hw/lpc_ich9.c
+++ b/hw/lpc_ich9.c
@@ 1,5 +1,13 @@
/*
+ * QEMU ICH9 Emulation
+ *
* Copyright (c) 2006 Fabrice Bellard
+ * Copyright (c) 2009, 2010, 2011
+ * Isaku Yamahata
+ * VA Linux Systems Japan K.K.
+ * Copyright (C) 2012 Jason Baron
+ *
+ * This is based on piix_pci.c, but heavily modified.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
@@ 19,30 +27,6 @@
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
/*
 * QEMU ICH9 Emulation
 *
 * Copyright (c) 2009, 2010, 2011
 * Isaku Yamahata
 * VA Linux Systems Japan K.K.
 * Copyright (C) 2012 Jason Baron
 *
 * This is based on piix_pci.c, but heavily modified.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, see
 */

#include "qemucommon.h"
#include "hw.h"
#include "range.h"
diff git a/hw/smbus_ich9.c b/hw/smbus_ich9.c
index 6940583..6d31e24 100644
 a/hw/smbus_ich9.c
+++ b/hw/smbus_ich9.c
@@ 2,6 +2,11 @@
* ACPI implementation
*
* Copyright (c) 2006 Fabrice Bellard
+ * Copyright (c) 2009 Isaku Yamahata
+ * VA Linux Systems Japan K.K.
+ * Copyright (C) 2012 Jason Baron
+ *
+ * This is based on acpi.c, but heavily rewritten.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
@@ 14,13 +19,10 @@
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, see
 */
/*
 * Copyright (c) 2009 Isaku Yamahata
 * VA Linux Systems Japan K.K.
 * Copyright (C) 2012 Jason Baron
*
 * This is based on acpi.c, but heavily rewritten.
+ * Contributions after 20120113 are licensed under the terms of the
+ * GNU GPL, version 2 or (at your option) any later version.
+ *
*/
#include "hw.h"
#include "pc.h"