diff --git a/include/common/par.h b/include/common/par.h
new file mode 100644
index 0000000..c8d67a3
--- /dev/null
+++ b/include/common/par.h
@@ -0,0 +1,30 @@
+/*
+ * Copyright (c) 2024, Arm Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef PAR_H
+#define PAR_H
+
+#include<arch_features.h>
+#include<lib/extensions/sysreg128.h>
+
+static inline uint64_t get_par_el1_pa(sysreg_t par)
+{
+	uint64_t pa = par & UINT64_MAX;
+	/* PA, bits [51:12] is Output address */
+	uint64_t mask = PAR_ADDR_MASK;
+
+#if ENABLE_FEAT_D128
+	/* If D128 is in use, the PA is in the upper 64-bit word of PAR_EL1 */
+	if (is_feat_d128_supported() && (par & PAR_EL1_D128)) {
+		pa = (par >> 64) & UINT64_MAX;
+		/* PA, bits [55:12] is Output address */
+		mask = PAR_D128_ADDR_MASK;
+	}
+#endif
+	return pa & mask;
+}
+
+#endif /* PAR_H */