diff --git a/include/arch/aarch64/arch.h b/include/arch/aarch64/arch.h
index 3ff2912..e48e201 100644
--- a/include/arch/aarch64/arch.h
+++ b/include/arch/aarch64/arch.h
@@ -140,6 +140,8 @@
 #define ID_AA64PFR0_GIC_MASK	ULL(0xf)
 #define ID_AA64PFR0_SVE_SHIFT	U(32)
 #define ID_AA64PFR0_SVE_MASK	ULL(0xf)
+#define ID_AA64PFR0_SEL2_SHIFT	U(36)
+#define ID_AA64PFR0_SEL2_MASK	U(0xf)
 #define ID_AA64PFR0_MPAM_SHIFT	U(40)
 #define ID_AA64PFR0_MPAM_MASK	ULL(0xf)
 #define ID_AA64PFR0_DIT_SHIFT	U(48)
@@ -285,6 +287,7 @@
 #define SCR_RES1_BITS		((U(1) << 4) | (U(1) << 5))
 #define SCR_ATA_BIT		(U(1) << 26)
 #define SCR_FIEN_BIT		(U(1) << 21)
+#define SCR_EEL2_BIT		(U(1) << 18)
 #define SCR_API_BIT		(U(1) << 17)
 #define SCR_APK_BIT		(U(1) << 16)
 #define SCR_TWE_BIT		(U(1) << 13)