diff --git a/include/lib/aarch64/arch.h b/include/lib/aarch64/arch.h
index f268167..da76039 100644
--- a/include/lib/aarch64/arch.h
+++ b/include/lib/aarch64/arch.h
@@ -162,6 +162,11 @@
 #define ID_AA64DFR0_V8_2_DEBUG_ARCH_SUPPORTED	U(8)
 #define ID_AA64DFR0_V8_4_DEBUG_ARCH_SUPPORTED	U(9)
 
+/* ID_AA64DFR0_EL1.TraceBuffer definitions */
+#define ID_AA64DFR0_TRACEBUFFER_SHIFT		U(44)
+#define ID_AA64DFR0_TRACEBUFFER_MASK		ULL(0xf)
+#define ID_AA64DFR0_TRACEBUFFER_SUPPORTED	ULL(1)
+
 #define EL_IMPL_NONE		ULL(0)
 #define EL_IMPL_A64ONLY		ULL(1)
 #define EL_IMPL_A64_A32		ULL(2)
@@ -998,5 +1003,15 @@
  ******************************************************************************/
 #define CNTPOFF_EL2  S3_4_C14_C0_6
 
+/*******************************************************************************
+ * Armv9.0 - Trace Buffer Extension System Registers
+ ******************************************************************************/
+#define TRBLIMITR_EL1	S3_0_C9_C11_0
+#define TRBPTR_EL1	S3_0_C9_C11_1
+#define TRBBASER_EL1	S3_0_C9_C11_2
+#define TRBSR_EL1	S3_0_C9_C11_3
+#define TRBMAR_EL1	S3_0_C9_C11_4
+#define TRBTRG_EL1	S3_0_C9_C11_6
+#define TRBIDR_EL1	S3_0_C9_C11_7
 
 #endif /* ARCH_H */
diff --git a/include/lib/aarch64/arch_features.h b/include/lib/aarch64/arch_features.h
index 15eb784..d2665b4 100644
--- a/include/lib/aarch64/arch_features.h
+++ b/include/lib/aarch64/arch_features.h
@@ -92,4 +92,11 @@
 		ID_AA64DFR0_DEBUG_SHIFT);
 }
 
+static inline bool get_armv9_0_trbe_support(void)
+{
+        return ((read_id_aa64dfr0_el1() >> ID_AA64DFR0_TRACEBUFFER_SHIFT) &
+		ID_AA64DFR0_TRACEBUFFER_MASK) ==
+		ID_AA64DFR0_TRACEBUFFER_SUPPORTED;
+}
+
 #endif /* ARCH_FEATURES_H */
diff --git a/include/lib/aarch64/arch_helpers.h b/include/lib/aarch64/arch_helpers.h
index 39f1e3b..cb10cfe 100644
--- a/include/lib/aarch64/arch_helpers.h
+++ b/include/lib/aarch64/arch_helpers.h
@@ -489,6 +489,15 @@
 /* Armv8.6 Enhanced Counter Virtualization Register */
 DEFINE_RENAME_SYSREG_RW_FUNCS(cntpoff_el2,  CNTPOFF_EL2)
 
+/* Armv9.0 Trace buffer extension System Registers */
+DEFINE_RENAME_SYSREG_RW_FUNCS(trblimitr_el1, TRBLIMITR_EL1)
+DEFINE_RENAME_SYSREG_RW_FUNCS(trbptr_el1, TRBPTR_EL1)
+DEFINE_RENAME_SYSREG_RW_FUNCS(trbbaser_el1, TRBBASER_EL1)
+DEFINE_RENAME_SYSREG_RW_FUNCS(trbsr_el1, TRBSR_EL1)
+DEFINE_RENAME_SYSREG_RW_FUNCS(trbmar_el1, TRBMAR_EL1)
+DEFINE_RENAME_SYSREG_RW_FUNCS(trbtrg_el1, TRBTRG_EL1)
+DEFINE_RENAME_SYSREG_READ_FUNC(trbidr_el1, TRBIDR_EL1)
+
 #define IS_IN_EL(x) \
 	(GET_EL(read_CurrentEl()) == MODE_EL##x)