diff --git a/services/std_svc/drtm/drtm_main.c b/services/std_svc/drtm/drtm_main.c
index 843fc5d..867870b 100644
--- a/services/std_svc/drtm/drtm_main.c
+++ b/services/std_svc/drtm/drtm_main.c
@@ -119,6 +119,36 @@
 	return 0;
 }
 
+static inline uint64_t drtm_features_tpm(void *ctx)
+{
+	SMC_RET2(ctx, 1ULL, /* TPM feature is supported */
+		 plat_drtm_features.tpm_features);
+}
+
+static inline uint64_t drtm_features_mem_req(void *ctx)
+{
+	SMC_RET2(ctx, 1ULL, /* memory req Feature is supported */
+		 plat_drtm_features.minimum_memory_requirement);
+}
+
+static inline uint64_t drtm_features_boot_pe_id(void *ctx)
+{
+	SMC_RET2(ctx, 1ULL, /* Boot PE feature is supported */
+		 plat_drtm_features.boot_pe_id);
+}
+
+static inline uint64_t drtm_features_dma_prot(void *ctx)
+{
+	SMC_RET2(ctx, 1ULL, /* DMA protection feature is supported */
+		 plat_drtm_features.dma_prot_features);
+}
+
+static inline uint64_t drtm_features_tcb_hashes(void *ctx)
+{
+	SMC_RET2(ctx, 1ULL, /* TCB hash feature is supported */
+		 plat_drtm_features.tcb_hash_features);
+}
+
 uint64_t drtm_smc_handler(uint32_t smc_fid,
 			  uint64_t x1,
 			  uint64_t x2,
@@ -192,6 +222,43 @@
 				SMC_RET1(handle, NOT_SUPPORTED);
 				break;	/* not reached */
 			}
+		} else {
+			/* Dispatch feature-based queries. */
+			switch (x1 & ARM_DRTM_FEAT_ID_MASK) {
+			case ARM_DRTM_FEATURES_TPM:
+				INFO("++ DRTM service handler: TPM features\n");
+				return drtm_features_tpm(handle);
+				break;	/* not reached */
+
+			case ARM_DRTM_FEATURES_MEM_REQ:
+				INFO("++ DRTM service handler: Min. mem."
+				     " requirement features\n");
+				return drtm_features_mem_req(handle);
+				break;	/* not reached */
+
+			case ARM_DRTM_FEATURES_DMA_PROT:
+				INFO("++ DRTM service handler: "
+				     "DMA protection features\n");
+				return drtm_features_dma_prot(handle);
+				break;	/* not reached */
+
+			case ARM_DRTM_FEATURES_BOOT_PE_ID:
+				INFO("++ DRTM service handler: "
+				     "Boot PE ID features\n");
+				return drtm_features_boot_pe_id(handle);
+				break;	/* not reached */
+
+			case ARM_DRTM_FEATURES_TCB_HASHES:
+				INFO("++ DRTM service handler: "
+				     "TCB-hashes features\n");
+				return drtm_features_tcb_hashes(handle);
+				break;	/* not reached */
+
+			default:
+				ERROR("Unknown ARM DRTM service feature\n");
+				SMC_RET1(handle, NOT_SUPPORTED);
+				break;	/* not reached */
+			}
 		}
 
 	case ARM_DRTM_SVC_UNPROTECT_MEM: