components/config/loader/sp/sp_config_loader.c - TS/trusted-services - TrustedFirmware Git Browser

 // SPDX-License-Identifier: BSD-3-Clause
 /*
  * Copyright (c) 2021-2024, Arm Limited and Contributors. All rights reserved.
  */

 #include <common/fdt/fdt_helpers.h>
 #include <config/interface/config_store.h>
 #include <config/interface/config_blob.h>
 #include <platform/interface/device_region.h>
 #include <platform/interface/memory_region.h>
 #include <stdbool.h>
 #include <stdint.h>
 #include <string.h>
 #include <trace.h>

 #include "sp_config_loader.h"

 /*
  * According to the FF-A spec: in the SP manifest the size of device and
  * memory regions is expressed as a count of 4K pages.
  */
 #define FFA_SP_MANIFEST_PAGE_SIZE UINT32_C(0x1000)

 struct sp_param_region {
 	char name[16];
 	uintptr_t location;
 	size_t size;
 };

 static bool load_device_regions(const struct ffa_name_value_pair_v1_0 *value_pair)
 {
 	struct sp_param_region *d = (struct sp_param_region *)value_pair->value;

 	/* Iterate over the device regions */
 	while ((uintptr_t)d < (value_pair->value + value_pair->size)) {

 		struct device_region device_region = { 0 };
 		size_t name_length = strlen(d->name) + 1;

 		if (name_length > sizeof(device_region.dev_class)) {
 			EMSG("name too long");
 			return false;
 		}

 		memcpy(device_region.dev_class, d->name, name_length);
 		device_region.dev_instance = 0;
 		device_region.base_addr = d->location;
 		device_region.io_region_size = d->size;

 		if (!config_store_add(CONFIG_CLASSIFIER_DEVICE_REGION,
 				      device_region.dev_class,
 				      device_region.dev_instance,
 				      &device_region, sizeof(device_region))) {
 			EMSG("failed to add device region to config store");
 			return false;
 		}

 		++d;
 	}

 	return true;
 }

 static bool load_memory_regions(const struct ffa_name_value_pair_v1_0 *value_pair)
 {
 	struct sp_param_region *d = (struct sp_param_region *)value_pair->value;

 	/* Iterate over the device regions */
 	while ((uintptr_t)d < (value_pair->value + value_pair->size)) {

 		struct memory_region memory_region = { 0 };
 		size_t name_length = strlen(d->name) + 1;

 		if (name_length > sizeof(memory_region.region_name)) {
 			EMSG("name too long");
 			return false;
 		}

 		memcpy(memory_region.region_name, d->name, name_length);
 		memory_region.base_addr = d->location;
 		memory_region.region_size = d->size;

 		if (!config_store_add(CONFIG_CLASSIFIER_MEMORY_REGION,
 				      memory_region.region_name, 0,
 				      &memory_region, sizeof(memory_region))) {
 			EMSG("failed to add memory region to config store");
 			return false;
 		}

 		++d;
 	}

 	return true;
 }

 static bool load_blob(const struct ffa_name_value_pair_v1_0 *value_pair)
 {
 	struct config_blob blob;

 	blob.data = (const void*)value_pair->value;
 	blob.data_len = value_pair->size;

 	if (!config_store_add(CONFIG_CLASSIFIER_BLOB, (const char *)value_pair->name, 0,
 			      &blob, sizeof(blob))) {
 		EMSG("failed to add blob to config store");
 		return false;
 	}

 	return true;
 }

 static bool load_fdt(const void *fdt, size_t fdt_size)
 {
 	int root = -1, node = -1, subnode = -1, rc = -1;
 	static const char *ffa_manifest_compatible = "arm,ffa-manifest-1.0";

 	/* Sanity check */
 	if (!fdt) {
 		EMSG("fdt NULL pointer");
 		return false;
 	}

 	rc = fdt_check_full(fdt, fdt_size);
 	if (rc) {
 		EMSG("fdt_check_full(): %d", rc);
 		return false;
 	}

 	/* Find root node */
 	root = fdt_path_offset(fdt, "/");
 	if (root < 0) {
 		EMSG("fdt_path_offset(): %d", root);
 		return false;
 	}

 	/* Check if it's a valid SP manifest */
 	rc = fdt_node_check_compatible(fdt, root, ffa_manifest_compatible);
 	if (rc) {
 		EMSG("fdt_node_check_compatible(%s): %d", ffa_manifest_compatible, rc);
 		return false;
 	}

 	/* Find memory regions */
 	node = fdt_node_offset_by_compatible(fdt, root, "arm,ffa-manifest-memory-regions");
 	if (node >= 0) {
 		fdt_for_each_subnode(subnode, fdt, node) {
 			struct memory_region memory_region = {0};
 			uint64_t base_addr = 0;
 			uint32_t page_cnt = 0;
 			const char *subnode_name = fdt_get_name(fdt, subnode, NULL);
 			size_t name_length = 0;

 			if (!subnode_name) {
 				EMSG("subnode name is missing");
 				return false;
 			}

 			if(!dt_get_u64(fdt, subnode, "base-address", &base_addr)) {
 				EMSG("base-address is missing");
 				return false;
 			}

 			if(!dt_get_u32(fdt, subnode, "pages-count", &page_cnt)) {
 				EMSG("pages-count is missing");
 				return false;
 			}

 			name_length = strlen(subnode_name) + 1;
 			if (name_length > sizeof(memory_region.region_name)) {
 				EMSG("name too long");
 				return false;
 			}

 			memcpy(memory_region.region_name, subnode_name, name_length);
 			memory_region.base_addr = (uintptr_t)base_addr;
 			memory_region.region_size = page_cnt * FFA_SP_MANIFEST_PAGE_SIZE;

 			if (!config_store_add(CONFIG_CLASSIFIER_MEMORY_REGION,
 					      memory_region.region_name, 0,
 					      &memory_region, sizeof(memory_region))) {
 				EMSG("failed to add memory region to config store");
 				return false;
 			}
 		}
 	}

 	/* Find device regions */
 	node = fdt_node_offset_by_compatible(fdt, root, "arm,ffa-manifest-device-regions");
 	if (node >= 0) {
 		fdt_for_each_subnode(subnode, fdt, node) {
 			struct device_region device_region = {0};
 			uint64_t base_addr = 0;
 			uint32_t page_cnt = 0;
 			const char *subnode_name = fdt_get_name(fdt, subnode, NULL);
 			size_t name_length = 0;

 			if (!subnode_name) {
 				EMSG("subnode name is missing");
 				return false;
 			}

 			if(!dt_get_u64(fdt, subnode, "base-address", &base_addr)) {
 				EMSG("base-address is missing");
 				return false;
 			}

 			if (!dt_get_u32(fdt, subnode, "pages-count", &page_cnt)) {
 				EMSG("pages-count is missing");
 				return false;
 			}

 			name_length = strlen(subnode_name) + 1;
 			if (name_length > sizeof(device_region.dev_class)) {
 				EMSG("name too long");
 				return false;
 			}

 			memcpy(device_region.dev_class, subnode_name, name_length);
 			device_region.base_addr = base_addr;
 			device_region.io_region_size = page_cnt * FFA_SP_MANIFEST_PAGE_SIZE;
 			device_region.dev_instance = 0;

 			if (!config_store_add(CONFIG_CLASSIFIER_DEVICE_REGION,
 					      device_region.dev_class, device_region.dev_instance,
 					      &device_region, sizeof(device_region))) {
 				EMSG("failed to add device region to config store");
 				return false;
 			}
 		}
 	}

 	/* Find TPM event log */
 	node = fdt_node_offset_by_compatible(fdt, root, "arm,tpm_event_log");
 	if (node >= 0) {
 		uint64_t tpm_event_log_addr = 0;
 		uint32_t tpm_event_log_size = 0;
 		struct config_blob blob = { 0 };

 		if (!dt_get_u64(fdt, node, "tpm_event_log_addr", &tpm_event_log_addr)) {
 			EMSG("tpm_event_log_addr is missing");
 			return false;
 		}

 		if (!dt_get_u32(fdt, node, "tpm_event_log_size", &tpm_event_log_size)) {
 			EMSG("tpm_event_log_size is missing");
 			return false;
 		}

 		blob.data = (const void *)tpm_event_log_addr;
 		blob.data_len = tpm_event_log_size;

 		if (!config_store_add(CONFIG_CLASSIFIER_BLOB, "EVENT_LOG", 0,
 				      (void *)&blob, sizeof(blob))) {
 			EMSG("failed to add event log to config store");
 			return false;
 		}
 	}

 	/* Find hardware features */
 	node = fdt_node_offset_by_compatible(fdt, root, "arm,hw-features");
 	if (node >= 0) {
 		const char *prop_name = NULL;
 		uint32_t prop_value = 0;
 		int prop_offset = 0;

 		fdt_for_each_property_offset(prop_offset, fdt, node) {
 			if (!dt_get_u32_by_offset(fdt, prop_offset, &prop_name, &prop_value)) {
 				/* skip other properties in the node, e.g. the compatible string */
 				DMSG("skipping non-u32 property '%s' in hw-features", prop_name);
 				continue;
 			}

 			if (!config_store_add(CONFIG_CLASSIFIER_HW_FEATURE, prop_name, 0,
 					      &prop_value, sizeof(prop_value))) {
 				EMSG("failed to add HW feature to config store");
 				return false;
 			}
 		}
 	} else {
 		DMSG("arm,hw-features node not present in SP manifest");
 	}

 	return true;
 }

 static bool sp_config_load_v1_0(struct ffa_boot_info_v1_0 *boot_info)
 {
 	/* Load deployment specific configuration */
 	for (size_t param_index = 0; param_index < boot_info->count; param_index++) {
 		const char *name = (const char *)boot_info->nvp[param_index].name;
 		const size_t name_max_size = sizeof(boot_info->nvp[param_index].name);

 		if (!strncmp(name, "DEVICE_REGIONS", name_max_size)) {
 			if (!load_device_regions(&boot_info->nvp[param_index])) {
 				EMSG("Failed to load device regions");
 				return false;
 			}
 		} else if (!strncmp(name, "MEMORY_REGIONS", name_max_size)) {
 			if (!load_memory_regions(&boot_info->nvp[param_index])) {
 				EMSG("Failed to load memory regions");
 				return false;
 			}
 		} else if (!memcmp(name, "TYPE_DT\0\0\0\0\0\0\0\0", name_max_size)) {
 			if (!load_fdt((void *)boot_info->nvp[param_index].value,
 					boot_info->nvp[param_index].size)) {
 				EMSG("Failed to load SP config from DT");
 				return false;
 			}
 		} else {
 			if (!load_blob(&boot_info->nvp[param_index])) {
 				EMSG("Failed to load blob");
 				return false;
 			}
 		}
 	}

 	return true;
 }

 static bool sp_config_load_v1_1(struct ffa_boot_info_header_v1_1 *boot_info_header)
 {
 	size_t desc_end = 0;
 	size_t total_desc_size = 0;
 	struct ffa_boot_info_desc_v1_1 *boot_info_desc = NULL;
 	uint32_t expected_version = SHIFT_U32(1, FFA_VERSION_MAJOR_SHIFT) |
 				    SHIFT_U32(1, FFA_VERSION_MINOR_SHIFT);

 	if (boot_info_header->version != expected_version) {
 		EMSG("Invalid FF-A boot info version");
 		return false;
 	}

 	if (boot_info_header->desc_size != sizeof(struct ffa_boot_info_desc_v1_1)) {
 		EMSG("Boot info descriptor size mismatch");
 		return false;
 	}

 	if (MUL_OVERFLOW(boot_info_header->desc_size, boot_info_header->desc_cnt,
 			 &total_desc_size)) {
 		EMSG("Boot info descriptor overflow");
 		return false;
 	}

 	if (ADD_OVERFLOW(boot_info_header->desc_offs, total_desc_size, &desc_end) ||
 	    boot_info_header->size < desc_end) {
 		EMSG("Boot info descriptor overflow");
 		return false;
 	}

 	boot_info_desc = (struct ffa_boot_info_desc_v1_1 *)((uintptr_t)boot_info_header +
 							    boot_info_header->desc_offs);

 	for (unsigned int i = 0; i < boot_info_header->desc_cnt; i++) {
 		uint16_t flags = FFA_BOOT_INFO_CONTENT_FMT_ADDR << FFA_BOOT_INFO_CONTENT_FMT_SHIFT;
 		uint16_t type = FFA_BOOT_INFO_TYPE_STD << FFA_BOOT_INFO_TYPE_SHIFT |
 				FFA_BOOT_INFO_ID_STD_FDT << FFA_BOOT_INFO_ID_SHIFT;

 		if (boot_info_desc[i].flags == flags && boot_info_desc[i].type == type) {
 			if (!load_fdt((void *)boot_info_desc->contents, boot_info_desc->size)) {
 				EMSG("Failed to load SP config FDT");
 				return false;
 			}
 		}
 	}

 	return true;
 }

 bool sp_config_load(union ffa_boot_info *boot_info)
 {
 	if (!boot_info)
 		return false;

 	switch (boot_info->signature) {
 	case FFA_BOOT_INFO_SIGNATURE_V1_0:
 		return sp_config_load_v1_0((struct ffa_boot_info_v1_0 *)&boot_info->boot_info_v1_0);
 	case FFA_BOOT_INFO_SIGNATURE_V1_1:
 		return sp_config_load_v1_1((struct ffa_boot_info_header_v1_1 *)
 					   &boot_info->boot_info_v1_1);
 	default:
 		EMSG("Invalid FF-A boot info signature");
 		return false;
 	}

 	return false;
 }
	// SPDX-License-Identifier: BSD-3-Clause
	/*
	* Copyright (c) 2021-2024, Arm Limited and Contributors. All rights reserved.
	*/

	#include <common/fdt/fdt_helpers.h>
	#include <config/interface/config_store.h>
	#include <config/interface/config_blob.h>
	#include <platform/interface/device_region.h>
	#include <platform/interface/memory_region.h>
	#include <stdbool.h>
	#include <stdint.h>
	#include <string.h>
	#include <trace.h>

	#include "sp_config_loader.h"

	/*
	* According to the FF-A spec: in the SP manifest the size of device and
	* memory regions is expressed as a count of 4K pages.
	*/
	#define FFA_SP_MANIFEST_PAGE_SIZE UINT32_C(0x1000)

	struct sp_param_region {
	char name[16];
	uintptr_t location;
	size_t size;
	};

	static bool load_device_regions(const struct ffa_name_value_pair_v1_0 *value_pair)
	{
	struct sp_param_region d = (struct sp_param_region )value_pair->value;

	/* Iterate over the device regions */
	while ((uintptr_t)d < (value_pair->value + value_pair->size)) {

	struct device_region device_region = { 0 };
	size_t name_length = strlen(d->name) + 1;

	if (name_length > sizeof(device_region.dev_class)) {
	EMSG("name too long");
	return false;
	}

	memcpy(device_region.dev_class, d->name, name_length);
	device_region.dev_instance = 0;
	device_region.base_addr = d->location;
	device_region.io_region_size = d->size;

	if (!config_store_add(CONFIG_CLASSIFIER_DEVICE_REGION,
	device_region.dev_class,
	device_region.dev_instance,
	&device_region, sizeof(device_region))) {
	EMSG("failed to add device region to config store");
	return false;
	}

	++d;
	}

	return true;
	}

	static bool load_memory_regions(const struct ffa_name_value_pair_v1_0 *value_pair)
	{
	struct sp_param_region d = (struct sp_param_region )value_pair->value;

	/* Iterate over the device regions */
	while ((uintptr_t)d < (value_pair->value + value_pair->size)) {

	struct memory_region memory_region = { 0 };
	size_t name_length = strlen(d->name) + 1;

	if (name_length > sizeof(memory_region.region_name)) {
	EMSG("name too long");
	return false;
	}

	memcpy(memory_region.region_name, d->name, name_length);
	memory_region.base_addr = d->location;
	memory_region.region_size = d->size;

	if (!config_store_add(CONFIG_CLASSIFIER_MEMORY_REGION,
	memory_region.region_name, 0,
	&memory_region, sizeof(memory_region))) {
	EMSG("failed to add memory region to config store");
	return false;
	}

	++d;
	}

	return true;
	}

	static bool load_blob(const struct ffa_name_value_pair_v1_0 *value_pair)
	{
	struct config_blob blob;

	blob.data = (const void*)value_pair->value;
	blob.data_len = value_pair->size;

	if (!config_store_add(CONFIG_CLASSIFIER_BLOB, (const char *)value_pair->name, 0,
	&blob, sizeof(blob))) {
	EMSG("failed to add blob to config store");
	return false;
	}

	return true;
	}

	static bool load_fdt(const void *fdt, size_t fdt_size)
	{
	int root = -1, node = -1, subnode = -1, rc = -1;
	static const char *ffa_manifest_compatible = "arm,ffa-manifest-1.0";

	/* Sanity check */
	if (!fdt) {
	EMSG("fdt NULL pointer");
	return false;
	}

	rc = fdt_check_full(fdt, fdt_size);
	if (rc) {
	EMSG("fdt_check_full(): %d", rc);
	return false;
	}

	/* Find root node */
	root = fdt_path_offset(fdt, "/");
	if (root < 0) {
	EMSG("fdt_path_offset(): %d", root);
	return false;
	}

	/* Check if it's a valid SP manifest */
	rc = fdt_node_check_compatible(fdt, root, ffa_manifest_compatible);
	if (rc) {
	EMSG("fdt_node_check_compatible(%s): %d", ffa_manifest_compatible, rc);
	return false;
	}

	/* Find memory regions */
	node = fdt_node_offset_by_compatible(fdt, root, "arm,ffa-manifest-memory-regions");
	if (node >= 0) {
	fdt_for_each_subnode(subnode, fdt, node) {
	struct memory_region memory_region = {0};
	uint64_t base_addr = 0;
	uint32_t page_cnt = 0;
	const char *subnode_name = fdt_get_name(fdt, subnode, NULL);
	size_t name_length = 0;

	if (!subnode_name) {
	EMSG("subnode name is missing");
	return false;
	}

	if(!dt_get_u64(fdt, subnode, "base-address", &base_addr)) {
	EMSG("base-address is missing");
	return false;
	}

	if(!dt_get_u32(fdt, subnode, "pages-count", &page_cnt)) {
	EMSG("pages-count is missing");
	return false;
	}

	name_length = strlen(subnode_name) + 1;
	if (name_length > sizeof(memory_region.region_name)) {
	EMSG("name too long");
	return false;
	}

	memcpy(memory_region.region_name, subnode_name, name_length);
	memory_region.base_addr = (uintptr_t)base_addr;
	memory_region.region_size = page_cnt * FFA_SP_MANIFEST_PAGE_SIZE;

	if (!config_store_add(CONFIG_CLASSIFIER_MEMORY_REGION,
	memory_region.region_name, 0,
	&memory_region, sizeof(memory_region))) {
	EMSG("failed to add memory region to config store");
	return false;
	}
	}
	}

	/* Find device regions */
	node = fdt_node_offset_by_compatible(fdt, root, "arm,ffa-manifest-device-regions");
	if (node >= 0) {
	fdt_for_each_subnode(subnode, fdt, node) {
	struct device_region device_region = {0};
	uint64_t base_addr = 0;
	uint32_t page_cnt = 0;
	const char *subnode_name = fdt_get_name(fdt, subnode, NULL);
	size_t name_length = 0;

	if (!subnode_name) {
	EMSG("subnode name is missing");
	return false;
	}

	if(!dt_get_u64(fdt, subnode, "base-address", &base_addr)) {
	EMSG("base-address is missing");
	return false;
	}

	if (!dt_get_u32(fdt, subnode, "pages-count", &page_cnt)) {
	EMSG("pages-count is missing");
	return false;
	}

	name_length = strlen(subnode_name) + 1;
	if (name_length > sizeof(device_region.dev_class)) {
	EMSG("name too long");
	return false;
	}

	memcpy(device_region.dev_class, subnode_name, name_length);
	device_region.base_addr = base_addr;
	device_region.io_region_size = page_cnt * FFA_SP_MANIFEST_PAGE_SIZE;
	device_region.dev_instance = 0;

	if (!config_store_add(CONFIG_CLASSIFIER_DEVICE_REGION,
	device_region.dev_class, device_region.dev_instance,
	&device_region, sizeof(device_region))) {
	EMSG("failed to add device region to config store");
	return false;
	}
	}
	}

	/* Find TPM event log */
	node = fdt_node_offset_by_compatible(fdt, root, "arm,tpm_event_log");
	if (node >= 0) {
	uint64_t tpm_event_log_addr = 0;
	uint32_t tpm_event_log_size = 0;
	struct config_blob blob = { 0 };

	if (!dt_get_u64(fdt, node, "tpm_event_log_addr", &tpm_event_log_addr)) {
	EMSG("tpm_event_log_addr is missing");
	return false;
	}

	if (!dt_get_u32(fdt, node, "tpm_event_log_size", &tpm_event_log_size)) {
	EMSG("tpm_event_log_size is missing");
	return false;
	}

	blob.data = (const void *)tpm_event_log_addr;
	blob.data_len = tpm_event_log_size;

	if (!config_store_add(CONFIG_CLASSIFIER_BLOB, "EVENT_LOG", 0,
	(void *)&blob, sizeof(blob))) {
	EMSG("failed to add event log to config store");
	return false;
	}
	}

	/* Find hardware features */
	node = fdt_node_offset_by_compatible(fdt, root, "arm,hw-features");
	if (node >= 0) {
	const char *prop_name = NULL;
	uint32_t prop_value = 0;
	int prop_offset = 0;

	fdt_for_each_property_offset(prop_offset, fdt, node) {
	if (!dt_get_u32_by_offset(fdt, prop_offset, &prop_name, &prop_value)) {
	/* skip other properties in the node, e.g. the compatible string */
	DMSG("skipping non-u32 property '%s' in hw-features", prop_name);
	continue;
	}

	if (!config_store_add(CONFIG_CLASSIFIER_HW_FEATURE, prop_name, 0,
	&prop_value, sizeof(prop_value))) {
	EMSG("failed to add HW feature to config store");
	return false;
	}
	}
	} else {
	DMSG("arm,hw-features node not present in SP manifest");
	}

	return true;
	}

	static bool sp_config_load_v1_0(struct ffa_boot_info_v1_0 *boot_info)
	{
	/* Load deployment specific configuration */
	for (size_t param_index = 0; param_index < boot_info->count; param_index++) {
	const char name = (const char )boot_info->nvp[param_index].name;
	const size_t name_max_size = sizeof(boot_info->nvp[param_index].name);

	if (!strncmp(name, "DEVICE_REGIONS", name_max_size)) {
	if (!load_device_regions(&boot_info->nvp[param_index])) {
	EMSG("Failed to load device regions");
	return false;
	}
	} else if (!strncmp(name, "MEMORY_REGIONS", name_max_size)) {
	if (!load_memory_regions(&boot_info->nvp[param_index])) {
	EMSG("Failed to load memory regions");
	return false;
	}
	} else if (!memcmp(name, "TYPE_DT\0\0\0\0\0\0\0\0", name_max_size)) {
	if (!load_fdt((void *)boot_info->nvp[param_index].value,
	boot_info->nvp[param_index].size)) {
	EMSG("Failed to load SP config from DT");
	return false;
	}
	} else {
	if (!load_blob(&boot_info->nvp[param_index])) {
	EMSG("Failed to load blob");
	return false;
	}
	}
	}

	return true;
	}

	static bool sp_config_load_v1_1(struct ffa_boot_info_header_v1_1 *boot_info_header)
	{
	size_t desc_end = 0;
	size_t total_desc_size = 0;
	struct ffa_boot_info_desc_v1_1 *boot_info_desc = NULL;
	uint32_t expected_version = SHIFT_U32(1, FFA_VERSION_MAJOR_SHIFT) \|
	SHIFT_U32(1, FFA_VERSION_MINOR_SHIFT);

	if (boot_info_header->version != expected_version) {
	EMSG("Invalid FF-A boot info version");
	return false;
	}

	if (boot_info_header->desc_size != sizeof(struct ffa_boot_info_desc_v1_1)) {
	EMSG("Boot info descriptor size mismatch");
	return false;
	}

	if (MUL_OVERFLOW(boot_info_header->desc_size, boot_info_header->desc_cnt,
	&total_desc_size)) {
	EMSG("Boot info descriptor overflow");
	return false;
	}

	if (ADD_OVERFLOW(boot_info_header->desc_offs, total_desc_size, &desc_end) \|\|
	boot_info_header->size < desc_end) {
	EMSG("Boot info descriptor overflow");
	return false;
	}

	boot_info_desc = (struct ffa_boot_info_desc_v1_1 *)((uintptr_t)boot_info_header +
	boot_info_header->desc_offs);

	for (unsigned int i = 0; i < boot_info_header->desc_cnt; i++) {
	uint16_t flags = FFA_BOOT_INFO_CONTENT_FMT_ADDR << FFA_BOOT_INFO_CONTENT_FMT_SHIFT;
	uint16_t type = FFA_BOOT_INFO_TYPE_STD << FFA_BOOT_INFO_TYPE_SHIFT \|
	FFA_BOOT_INFO_ID_STD_FDT << FFA_BOOT_INFO_ID_SHIFT;

	if (boot_info_desc[i].flags == flags && boot_info_desc[i].type == type) {
	if (!load_fdt((void *)boot_info_desc->contents, boot_info_desc->size)) {
	EMSG("Failed to load SP config FDT");
	return false;
	}
	}
	}

	return true;
	}

	bool sp_config_load(union ffa_boot_info *boot_info)
	{
	if (!boot_info)
	return false;

	switch (boot_info->signature) {
	case FFA_BOOT_INFO_SIGNATURE_V1_0:
	return sp_config_load_v1_0((struct ffa_boot_info_v1_0 *)&boot_info->boot_info_v1_0);
	case FFA_BOOT_INFO_SIGNATURE_V1_1:
	return sp_config_load_v1_1((struct ffa_boot_info_header_v1_1 *)
	&boot_info->boot_info_v1_1);
	default:
	EMSG("Invalid FF-A boot info signature");
	return false;
	}

	return false;
	}