SPM: Move initialization flag to context struct

Whether a Secure Partition is being initialized or not is something
related to that specific partition, so it should be saved with the
rest of the information related to it.

Change-Id: Ie8a780f70df83fb03ef9c01ba37960208d9b5319
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>

services/std_svc/spm/spm_main.c

@@ -29,7 +29,6 @@ static spinlock_t mem_attr_smc_lock;
  * Secure Partition context information.
  ******************************************************************************/
 static secure_partition_context_t sp_ctx;
-unsigned int sp_init_in_progress;
 
 /*******************************************************************************
  * Replace the S-EL1 re-entry information with S-EL0 re-entry
@@ -128,10 +127,10 @@ int32_t spm_init(void)
 	/*
 	 * Arrange for an entry into the secure partition.
 	 */
-	sp_init_in_progress = 1;
+	sp_ctx.sp_init_in_progress = 1;
 	rc = spm_synchronous_sp_entry(&sp_ctx);
 	assert(rc == 0);
-	sp_init_in_progress = 0;
+	sp_ctx.sp_init_in_progress = 0;
 	VERBOSE("SP_MEMORY_ATTRIBUTES_SET_AARCH64 availability has been revoked\n");
 
 	return rc;
@@ -358,7 +357,7 @@ uint64_t spm_smc_handler(uint32_t smc_fid,
 			cm_el1_sysregs_context_save(SECURE);
 			spm_setup_next_eret_into_sel0(handle);
 
-			if (sp_init_in_progress) {
+			if (sp_ctx.sp_init_in_progress) {
 				/*
 				 * SPM reports completion. The SPM must have
 				 * initiated the original request through a
@@ -391,7 +390,7 @@ uint64_t spm_smc_handler(uint32_t smc_fid,
 		case SP_MEMORY_ATTRIBUTES_GET_AARCH64:
 			INFO("Received SP_MEMORY_ATTRIBUTES_GET_AARCH64 SMC\n");
 
-			if (!sp_init_in_progress) {
+			if (!sp_ctx.sp_init_in_progress) {
 				WARN("SP_MEMORY_ATTRIBUTES_GET_AARCH64 is available at boot time only\n");
 				SMC_RET1(handle, SPM_NOT_SUPPORTED);
 			}
@@ -400,7 +399,7 @@ uint64_t spm_smc_handler(uint32_t smc_fid,
 		case SP_MEMORY_ATTRIBUTES_SET_AARCH64:
 			INFO("Received SP_MEMORY_ATTRIBUTES_SET_AARCH64 SMC\n");
 
-			if (!sp_init_in_progress) {
+			if (!sp_ctx.sp_init_in_progress) {
 				WARN("SP_MEMORY_ATTRIBUTES_SET_AARCH64 is available at boot time only\n");
 				SMC_RET1(handle, SPM_NOT_SUPPORTED);
 			}

services/std_svc/spm/spm_private.h

@@ -43,6 +43,7 @@ struct entry_point_info;
 typedef struct secure_partition_context {
 	uint64_t c_rt_ctx;
 	cpu_context_t cpu_ctx;
+	unsigned int sp_init_in_progress;
 } secure_partition_context_t;
 
 uint64_t spm_secure_partition_enter(uint64_t *c_rt_ctx);