diff --git a/lib/extensions/sme/sme.c b/lib/extensions/sme/sme.c
index 29034fd..f888d12 100644
--- a/lib/extensions/sme/sme.c
+++ b/lib/extensions/sme/sme.c
@@ -43,11 +43,23 @@
 	 * to be the least restrictive, then lower ELs can restrict as needed
 	 * using SMCR_EL2 and SMCR_EL1.
 	 */
-	reg = SMCR_ELX_LEN_MASK;
+	reg = SMCR_ELX_LEN_MAX;
+
 	if (read_feat_sme_fa64_id_field() != 0U) {
 		VERBOSE("[SME] FA64 enabled\n");
 		reg |= SMCR_ELX_FA64_BIT;
 	}
+
+	/*
+	 * Enable access to ZT0 register.
+	 * Make sure FEAT_SME2 is supported by the hardware before continuing.
+	 * If supported, Set the EZT0 bit in SMCR_EL3 to allow instructions to
+	 * access ZT0 register without trapping.
+	 */
+	if (is_feat_sme2_supported()) {
+		VERBOSE("SME2 enabled\n");
+		reg |= SMCR_ELX_EZT0_BIT;
+	}
 	write_smcr_el3(reg);
 
 	/* Reset CPTR_EL3 value. */