Support paging function for OPTEE.

ARM TF need transfer information about pageable image load address
and memory limit to OPTEE. OPTEE will relocate the pageable image
to where it's needed.
The legacy OP-TEE images that do not include header information
are not affected.

Change-Id: Id057efbbc894de7c36b2209b391febea4729c455
Signed-off-by: Edison Ai <edison.ai@arm.com>

services/spd/opteed/opteed_common.c

@@ -19,6 +19,7 @@
  ******************************************************************************/
 void opteed_init_optee_ep_state(struct entry_point_info *optee_entry_point,
 				uint32_t rw, uint64_t pc,
+				uint64_t pageable_part, uint64_t mem_limit,
 				optee_context_t *optee_ctx)
 {
 	uint32_t ep_attr;
@@ -51,6 +52,8 @@ void opteed_init_optee_ep_state(struct entry_point_info *optee_entry_point,
 							DAIF_IRQ_BIT |
 							DAIF_ABT_BIT);
 	zeromem(&optee_entry_point->args, sizeof(optee_entry_point->args));
+	optee_entry_point->args.arg0 = pageable_part;
+	optee_entry_point->args.arg1 = mem_limit;
 }
 
 /*******************************************************************************

services/spd/opteed/opteed_main.c

@@ -42,8 +42,6 @@ optee_vectors_t *optee_vectors;
 optee_context_t opteed_sp_context[OPTEED_CORE_COUNT];
 uint32_t opteed_rw;
 
-
-
 static int32_t opteed_init(void);
 
 /*******************************************************************************
@@ -96,6 +94,8 @@ int32_t opteed_setup(void)
 {
 	entry_point_info_t *optee_ep_info;
 	uint32_t linear_id;
+	uint64_t opteed_pageable_part;
+	uint64_t opteed_mem_limit;
 
 	linear_id = plat_my_core_pos();
 
@@ -122,13 +122,17 @@ int32_t opteed_setup(void)
 
 	/*
 	 * We could inspect the SP image and determine it's execution
-	 * state i.e whether AArch32 or AArch64. Assuming it's AArch32
-	 * for the time being.
+	 * state i.e whether AArch32 or AArch64.
 	 */
-	opteed_rw = OPTEE_AARCH64;
+	opteed_rw = optee_ep_info->args.arg0;
+	opteed_pageable_part = optee_ep_info->args.arg1;
+	opteed_mem_limit = optee_ep_info->args.arg2;
+
 	opteed_init_optee_ep_state(optee_ep_info,
 				opteed_rw,
 				optee_ep_info->pc,
+				opteed_pageable_part,
+				opteed_mem_limit,
 				&opteed_sp_context[linear_id]);
 
 	/*

services/spd/opteed/opteed_pm.c

 /*
- * Copyright (c) 2013-2015, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2013-2017, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -99,7 +99,7 @@ static void opteed_cpu_on_finish_handler(uint64_t unused)
 
 	opteed_init_optee_ep_state(&optee_on_entrypoint, opteed_rw,
 				(uint64_t)&optee_vectors->cpu_on_entry,
-				optee_ctx);
+				0, 0, optee_ctx);
 
 	/* Initialise this cpu's secure context */
 	cm_init_my_context(&optee_on_entrypoint);
@@ -216,4 +216,3 @@ const spd_pm_ops_t opteed_pm = {
 	.svc_system_off = opteed_system_off,
 	.svc_system_reset = opteed_system_reset,
 };
-

services/spd/opteed/opteed_private.h

@@ -147,6 +147,8 @@ void __dead2 opteed_synchronous_sp_exit(optee_context_t *optee_ctx, uint64_t ret
 void opteed_init_optee_ep_state(struct entry_point_info *optee_ep,
 				uint32_t rw,
 				uint64_t pc,
+				uint64_t pageable_part,
+				uint64_t mem_limit,
 				optee_context_t *optee_ctx);
 
 extern optee_context_t opteed_sp_context[OPTEED_CORE_COUNT];