diff --git a/src/mainboard/ocp/deltalake/devicetree.cb b/src/mainboard/ocp/deltalake/devicetree.cb
index 24a2850fc9..1773f9f7b8 100644
--- a/src/mainboard/ocp/deltalake/devicetree.cb
+++ b/src/mainboard/ocp/deltalake/devicetree.cb
@@ -33,6 +33,10 @@ chip soc/intel/xeon_sp/cpx
 	# configure PSTATE_REQ_RATIO for MSR_IA32_PERF_CTRL
 	register "pstate_req_ratio" = "0xa"
 
+	# configure VT-d
+	register "vtd_support" = "1"
+	register "x2apic" = "1"
+
 	register "gen1_dec" = "0x00fc0601" # BIC in-band update support
 	register "gen2_dec" = "0x000c0ca1" # IPMI KCS