arch/x86_64: migrate to SPDX identifier

Most tools used for compliance and SBOM generation use SPDX identifiers
This change brings us a step closer to an easy SBOM generation.

Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>

arch/x86_64/CMakeLists.txt

@@ -1,6 +1,8 @@
 # ##############################################################################
 # arch/x86_64/CMakeLists.txt
 #
+# SPDX-License-Identifier: Apache-2.0
+#
 # Licensed to the Apache Software Foundation (ASF) under one or more contributor
 # license agreements.  See the NOTICE file distributed with this work for
 # additional information regarding copyright ownership.  The ASF licenses this

arch/x86_64/include/acpi.h

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/x86_64/include/acpi.h
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/x86_64/include/arch.h

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/x86_64/include/arch.h
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/x86_64/include/elf.h

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/x86_64/include/elf.h
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/x86_64/include/hpet.h

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/x86_64/include/hpet.h
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/x86_64/include/intel64/arch.h

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/x86_64/include/intel64/arch.h
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/x86_64/include/intel64/inttypes.h

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/x86_64/include/intel64/inttypes.h
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/x86_64/include/intel64/io.h

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/x86_64/include/intel64/io.h
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/x86_64/include/intel64/irq.h

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/x86_64/include/intel64/irq.h
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/x86_64/include/intel64/limits.h

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/x86_64/include/intel64/limits.h
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/x86_64/include/intel64/types.h

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/x86_64/include/intel64/types.h
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/x86_64/include/inttypes.h

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/x86_64/include/inttypes.h
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/x86_64/include/io.h

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/x86_64/include/io.h
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/x86_64/include/irq.h

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/x86_64/include/irq.h
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/x86_64/include/limits.h

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/x86_64/include/limits.h
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/x86_64/include/setjmp.h

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/x86_64/include/setjmp.h
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/x86_64/include/spinlock.h

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/x86_64/include/spinlock.h
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/x86_64/include/syscall.h

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/x86_64/include/syscall.h
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/x86_64/include/types.h

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/x86_64/include/types.h
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/x86_64/src/CMakeLists.txt

@@ -1,6 +1,8 @@
 # ##############################################################################
 # arch/x86_64/src/CMakeLists.txt
 #
+# SPDX-License-Identifier: Apache-2.0
+#
 # Licensed to the Apache Software Foundation (ASF) under one or more contributor
 # license agreements.  See the NOTICE file distributed with this work for
 # additional information regarding copyright ownership.  The ASF licenses this

arch/x86_64/src/Makefile

@@ -1,6 +1,8 @@
 ############################################################################
 # arch/x86_64/src/Makefile
 #
+# SPDX-License-Identifier: Apache-2.0
+#
 # Licensed to the Apache Software Foundation (ASF) under one or more
 # contributor license agreements.  See the NOTICE file distributed with
 # this work for additional information regarding copyright ownership.  The

arch/x86_64/src/cmake/Toolchain.cmake

@@ -1,6 +1,8 @@
 # ##############################################################################
 # arch/x86_64/src/cmake/Toolchain.cmake
 #
+# SPDX-License-Identifier: Apache-2.0
+#
 # Licensed to the Apache Software Foundation (ASF) under one or more contributor
 # license agreements.  See the NOTICE file distributed with this work for
 # additional information regarding copyright ownership.  The ASF licenses this

arch/x86_64/src/cmake/platform.cmake

@@ -1,6 +1,8 @@
 # ##############################################################################
 # arch/x86_64/src/cmake/platform.cmake
 #
+# SPDX-License-Identifier: Apache-2.0
+#
 # Licensed to the Apache Software Foundation (ASF) under one or more contributor
 # license agreements.  See the NOTICE file distributed with this work for
 # additional information regarding copyright ownership.  The ASF licenses this

arch/x86_64/src/common/CMakeLists.txt

@@ -1,6 +1,8 @@
 # ##############################################################################
 # arch/x86_64/src/common/CMakeLists.txt
 #
+# SPDX-License-Identifier: Apache-2.0
+#
 # Licensed to the Apache Software Foundation (ASF) under one or more contributor
 # license agreements.  See the NOTICE file distributed with this work for
 # additional information regarding copyright ownership.  The ASF licenses this

arch/x86_64/src/common/Make.defs

@@ -1,6 +1,8 @@
 ############################################################################
 # arch/x86_64/src/common/Make.defs
 #
+# SPDX-License-Identifier: Apache-2.0
+#
 # Licensed to the Apache Software Foundation (ASF) under one or more
 # contributor license agreements.  See the NOTICE file distributed with
 # this work for additional information regarding copyright ownership.  The

arch/x86_64/src/common/Toolchain.defs

@@ -1,6 +1,8 @@
 ############################################################################
 # arch/x86_64/src/common/Toolchain.defs
 #
+# SPDX-License-Identifier: Apache-2.0
+#
 # Licensed to the Apache Software Foundation (ASF) under one or more
 # contributor license agreements.  See the NOTICE file distributed with
 # this work for additional information regarding copyright ownership.  The

arch/x86_64/src/common/addrenv.h

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/x86_64/src/common/addrenv.h
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/x86_64/src/common/crt0.c

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/x86_64/src/common/crt0.c
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/x86_64/src/common/fork.S

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/x86_64/src/common/fork.S
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/x86_64/src/common/multiboot1.S

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/x86_64/src/common/multiboot1.S
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/x86_64/src/common/multiboot1.ld

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/x86_64/src/common/multiboot1.ld
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/x86_64/src/common/pgalloc.h

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/x86_64/src/common/pgalloc.h
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/x86_64/src/common/x86_64_acpi.c

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/x86_64/src/common/x86_64_acpi.c
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/x86_64/src/common/x86_64_addrenv.c

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/x86_64/src/common/x86_64_addrenv.c
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/x86_64/src/common/x86_64_addrenv_kstack.c

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/x86_64/src/common/x86_64_addrenv_kstack.c
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/x86_64/src/common/x86_64_addrenv_perms.c

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/x86_64/src/common/x86_64_addrenv_perms.c
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/x86_64/src/common/x86_64_allocateheap.c

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/x86_64/src/common/x86_64_allocateheap.c
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/x86_64/src/common/x86_64_copystate.c

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/x86_64/src/common/x86_64_copystate.c
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/x86_64/src/common/x86_64_exit.c

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/x86_64/src/common/x86_64_exit.c
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/x86_64/src/common/x86_64_fork.c

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/x86_64/src/common/x86_64_fork.c
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/x86_64/src/common/x86_64_fork.h

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/x86_64/src/common/x86_64_fork.h
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/x86_64/src/common/x86_64_getintstack.c

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/x86_64/src/common/x86_64_getintstack.c
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/x86_64/src/common/x86_64_initialize.c

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/x86_64/src/common/x86_64_initialize.c
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/x86_64/src/common/x86_64_internal.h

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/x86_64/src/common/x86_64_internal.h
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/x86_64/src/common/x86_64_lowputs.c

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/x86_64/src/common/x86_64_lowputs.c
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/x86_64/src/common/x86_64_mdelay.c

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/x86_64/src/common/x86_64_mdelay.c
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/x86_64/src/common/x86_64_mmu.c

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/x86_64/src/common/x86_64_mmu.c
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/x86_64/src/common/x86_64_mmu.h

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/x86_64/src/common/x86_64_mmu.h
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/x86_64/src/common/x86_64_modifyreg16.c

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/x86_64/src/common/x86_64_modifyreg16.c
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The

arch/x86_64/src/common/x86_64_modifyreg32.c

@@ -1,6 +1,8 @@
 /****************************************************************************
  * arch/x86_64/src/common/x86_64_modifyreg32.c
  *
+ * SPDX-License-Identifier: Apache-2.0
+ *
  * Licensed to the Apache Software Foundation (ASF) under one or more
  * contributor license agreements.  See the NOTICE file distributed with
  * this work for additional information regarding copyright ownership.  The