6 files changed, 12 insertions, 0 deletions
diff --git a/src/include/cpu/x86/lapic.h b/src/include/cpu/x86/lapic.h
index 400199b029..5fa5608db9 100644
--- a/src/include/cpu/x86/lapic.h
+++ b/src/include/cpu/x86/lapic.h
@@ -1,3 +1,5 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
 #ifndef CPU_X86_LAPIC_H
 #define CPU_X86_LAPIC_H
 
diff --git a/src/include/cpu/x86/lapic_def.h b/src/include/cpu/x86/lapic_def.h
index 84a3413ac3..e118b6b427 100644
--- a/src/include/cpu/x86/lapic_def.h
+++ b/src/include/cpu/x86/lapic_def.h
@@ -1,3 +1,5 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
 #ifndef CPU_X86_LAPIC_DEF_H
 #define CPU_X86_LAPIC_DEF_H
 
diff --git a/src/include/cpu/x86/msr.h b/src/include/cpu/x86/msr.h
index 9f30c057ed..ca2a37fe95 100644
--- a/src/include/cpu/x86/msr.h
+++ b/src/include/cpu/x86/msr.h
@@ -1,3 +1,5 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
 #ifndef CPU_X86_MSR_H
 #define CPU_X86_MSR_H
 
diff --git a/src/include/cpu/x86/mtrr.h b/src/include/cpu/x86/mtrr.h
index b2bc2c86b1..ed55c04020 100644
--- a/src/include/cpu/x86/mtrr.h
+++ b/src/include/cpu/x86/mtrr.h
@@ -1,3 +1,5 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
 #ifndef CPU_X86_MTRR_H
 #define CPU_X86_MTRR_H
 
diff --git a/src/include/cpu/x86/post_code.h b/src/include/cpu/x86/post_code.h
index 200d93ec99..db8f90dacf 100644
--- a/src/include/cpu/x86/post_code.h
+++ b/src/include/cpu/x86/post_code.h
@@ -1,3 +1,5 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
 #ifndef __X86_POST_CODE_H__
 #define __X86_POST_CODE_H__
 
diff --git a/src/include/cpu/x86/tsc.h b/src/include/cpu/x86/tsc.h
index ddce96bb39..5d173da66e 100644
--- a/src/include/cpu/x86/tsc.h
+++ b/src/include/cpu/x86/tsc.h
@@ -1,3 +1,5 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
 #ifndef CPU_X86_TSC_H
 #define CPU_X86_TSC_H