spd: tlkd: support for "NS memory ranges" function ID

This patch adds support to receive function ID with NS world's
memory ranges to provide the memory snapshot to TLK.
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

include/bl32/payloads/tlk.h

 /*
- * Copyright (c) 2015-2017, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2015-2018, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -20,6 +20,7 @@
  */
 #define TLK_REGISTER_LOGBUF	TLK_TOS_YIELD_FID(0x1)
 #define TLK_REGISTER_REQBUF	TLK_TOS_YIELD_FID(0x2)
+#define TLK_REGISTER_NS_DRAM	TLK_TOS_YIELD_FID(0x4)
 #define TLK_RESUME_FID		TLK_TOS_YIELD_FID(0x100)
 #define TLK_SYSTEM_SUSPEND	TLK_TOS_YIELD_FID(0xE001)
 #define TLK_SYSTEM_RESUME	TLK_TOS_YIELD_FID(0xE002)

services/spd/tlkd/tlkd_main.c

 /*
- * Copyright (c) 2015-2017, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2015-2018, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -193,12 +193,14 @@ uint64_t tlkd_smc_handler(uint32_t smc_fid,
 	 * b. register shared memory with the SP for passing args
 	 *    required for maintaining sessions with the Trusted
 	 *    Applications.
-	 * c. open/close sessions
-	 * d. issue commands to the Trusted Apps
-	 * e. resume the preempted yielding SMC call.
+	 * c. register non-secure world's memory map with the OS
+	 * d. open/close sessions
+	 * e. issue commands to the Trusted Apps
+	 * f. resume the preempted yielding SMC call.
 	 */
 	case TLK_REGISTER_LOGBUF:
 	case TLK_REGISTER_REQBUF:
+	case TLK_REGISTER_NS_DRAM:
 	case TLK_OPEN_TA_SESSION:
 	case TLK_CLOSE_TA_SESSION:
 	case TLK_TA_LAUNCH_OP: