Adding upstream version 2.8.0+dfsg.upstream/2.8.0+dfsgupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

4 files changed, 643 insertions, 0 deletions

diff --git a/include/plat/common/common_def.h b/include/plat/common/common_def.h
new file mode 100644
index 0000000..1d3ac15
--- /dev/null
+++ b/include/plat/common/common_def.h
@@ -0,0 +1,127 @@
+/*
+ * Copyright (c) 2015-2022, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+#ifndef COMMON_DEF_H
+#define COMMON_DEF_H
+
+#include <common/bl_common.h>
+#include <lib/utils_def.h>
+#include <lib/xlat_tables/xlat_tables_defs.h>
+
+#include <platform_def.h>
+
+#define SZ_32				U(0x00000020)
+#define SZ_64				U(0x00000040)
+#define SZ_128				U(0x00000080)
+#define SZ_256				U(0x00000100)
+#define SZ_512				U(0x00000200)
+
+#define SZ_1K				U(0x00000400)
+#define SZ_2K				U(0x00000800)
+#define SZ_4K				U(0x00001000)
+#define SZ_8K				U(0x00002000)
+#define SZ_16K				U(0x00004000)
+#define SZ_32K				U(0x00008000)
+#define SZ_64K				U(0x00010000)
+#define SZ_128K				U(0x00020000)
+#define SZ_256K				U(0x00040000)
+#define SZ_512K				U(0x00080000)
+
+#define SZ_1M				U(0x00100000)
+#define SZ_2M				U(0x00200000)
+#define SZ_4M				U(0x00400000)
+#define SZ_8M				U(0x00800000)
+#define SZ_16M				U(0x01000000)
+#define SZ_32M				U(0x02000000)
+#define SZ_64M				U(0x04000000)
+#define SZ_128M				U(0x08000000)
+#define SZ_256M				U(0x10000000)
+#define SZ_512M				U(0x20000000)
+
+#define SZ_1G				U(0x40000000)
+#define SZ_2G				U(0x80000000)
+
+/******************************************************************************
+ * Required platform porting definitions that are expected to be common to
+ * all platforms
+ *****************************************************************************/
+
+/*
+ * Platform binary types for linking
+ */
+#ifdef __aarch64__
+#define PLATFORM_LINKER_FORMAT          "elf64-littleaarch64"
+#define PLATFORM_LINKER_ARCH            aarch64
+#else
+#define PLATFORM_LINKER_FORMAT          "elf32-littlearm"
+#define PLATFORM_LINKER_ARCH            arm
+#endif /* __aarch64__ */
+
+/*
+ * Generic platform constants
+ */
+#define FIRMWARE_WELCOME_STR		"Booting Trusted Firmware\n"
+
+#define BL2_IMAGE_DESC {				\
+	.image_id = BL2_IMAGE_ID,			\
+	SET_STATIC_PARAM_HEAD(image_info, PARAM_EP,	\
+		VERSION_2, image_info_t, 0),		\
+	.image_info.image_base = BL2_BASE,		\
+	.image_info.image_max_size = BL2_LIMIT - BL2_BASE,\
+	SET_STATIC_PARAM_HEAD(ep_info, PARAM_EP,	\
+		VERSION_2, entry_point_info_t, SECURE | EXECUTABLE),\
+	.ep_info.pc = BL2_BASE,				\
+}
+
+/*
+ * The following constants identify the extents of the code & read-only data
+ * regions. These addresses are used by the MMU setup code and therefore they
+ * must be page-aligned.
+ *
+ * When the code and read-only data are mapped as a single atomic section
+ * (i.e. when SEPARATE_CODE_AND_RODATA=0) then we treat the whole section as
+ * code by specifying the read-only data section as empty.
+ *
+ * BL1 is different than the other images in the sense that its read-write data
+ * originally lives in Trusted ROM and needs to be relocated in Trusted SRAM at
+ * run-time. Therefore, the read-write data in ROM can be mapped with the same
+ * memory attributes as the read-only data region. For this reason, BL1 uses
+ * different macros.
+ *
+ * Note that BL1_ROM_END is not necessarily aligned on a page boundary as it
+ * just points to the end of BL1's actual content in Trusted ROM. Therefore it
+ * needs to be rounded up to the next page size in order to map the whole last
+ * page of it with the right memory attributes.
+ */
+#if SEPARATE_CODE_AND_RODATA
+
+#define BL1_CODE_END		BL_CODE_END
+#define BL1_RO_DATA_BASE	BL_RO_DATA_BASE
+#define BL1_RO_DATA_END		round_up(BL1_ROM_END, PAGE_SIZE)
+#if BL2_IN_XIP_MEM
+#define BL2_CODE_END		BL_CODE_END
+#define BL2_RO_DATA_BASE	BL_RO_DATA_BASE
+#define BL2_RO_DATA_END		round_up(BL2_ROM_END, PAGE_SIZE)
+#endif /* BL2_IN_XIP_MEM */
+#else
+#define BL_RO_DATA_BASE		UL(0)
+#define BL_RO_DATA_END		UL(0)
+#define BL1_CODE_END		round_up(BL1_ROM_END, PAGE_SIZE)
+#if BL2_IN_XIP_MEM
+#define BL2_RO_DATA_BASE	UL(0)
+#define BL2_RO_DATA_END		UL(0)
+#define BL2_CODE_END		round_up(BL2_ROM_END, PAGE_SIZE)
+#endif /* BL2_IN_XIP_MEM */
+#endif /* SEPARATE_CODE_AND_RODATA */
+
+#if MEASURED_BOOT
+/*
+ * Start critical data Ids from 2^32/2 reserving Ids from 0 to (2^32/2 - 1)
+ * for Images, It is a critical data Id base for all platforms.
+ */
+#define CRITICAL_DATA_ID_BASE	U(0x80000000)
+#endif /* MEASURED_BOOT */
+
+#endif /* COMMON_DEF_H */
diff --git a/include/plat/common/plat_drtm.h b/include/plat/common/plat_drtm.h
new file mode 100644
index 0000000..e96e719
--- /dev/null
+++ b/include/plat/common/plat_drtm.h
@@ -0,0 +1,74 @@
+/*
+ * Copyright (c) 2022, Arm Limited. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef PLAT_DRTM_H
+#define PLAT_DRTM_H
+
+#include <stdint.h>
+#include <lib/xlat_tables/xlat_tables_compat.h>
+
+typedef struct {
+	uint8_t max_num_mem_prot_regions;
+	uint8_t dma_protection_support;
+} plat_drtm_dma_prot_features_t;
+
+typedef struct {
+	bool tpm_based_hash_support;
+	uint32_t firmware_hash_algorithm;
+} plat_drtm_tpm_features_t;
+
+typedef struct {
+	uint64_t region_address;
+	uint64_t region_size_type;
+} __attribute__((packed)) drtm_mem_region_t;
+
+/*
+ * Memory region descriptor table structure as per DRTM beta0 section 3.13
+ * Table 11 MEMORY_REGION_DESCRIPTOR_TABLE
+ */
+typedef struct {
+	uint16_t revision;
+	uint16_t reserved;
+	uint32_t num_regions;
+	drtm_mem_region_t region[];
+} __attribute__((packed)) drtm_memory_region_descriptor_table_t;
+
+/* platform specific address map functions */
+const mmap_region_t *plat_get_addr_mmap(void);
+
+/* platform-specific DMA protection functions */
+bool plat_has_non_host_platforms(void);
+bool plat_has_unmanaged_dma_peripherals(void);
+unsigned int plat_get_total_smmus(void);
+void plat_enumerate_smmus(const uintptr_t **smmus_out,
+			  size_t *smmu_count_out);
+const plat_drtm_dma_prot_features_t *plat_drtm_get_dma_prot_features(void);
+uint64_t plat_drtm_dma_prot_get_max_table_bytes(void);
+
+/* platform-specific TPM functions */
+const plat_drtm_tpm_features_t *plat_drtm_get_tpm_features(void);
+
+/*
+ * TODO: Implement these functions as per the platform use case,
+ * as of now none of the platform uses these functions
+ */
+uint64_t plat_drtm_get_min_size_normal_world_dce(void);
+uint64_t plat_drtm_get_tcb_hash_table_size(void);
+uint64_t plat_drtm_get_imp_def_dlme_region_size(void);
+uint64_t plat_drtm_get_tcb_hash_features(void);
+
+/* DRTM error handling functions */
+int plat_set_drtm_error(uint64_t error_code);
+int plat_get_drtm_error(uint64_t *error_code);
+
+/*
+ * Platform-specific function to ensure passed region lies within
+ * Non-Secure region of DRAM
+ */
+int plat_drtm_validate_ns_region(uintptr_t region_start,
+				 size_t region_size);
+
+#endif /* PLAT_DRTM_H */
diff --git a/include/plat/common/plat_trng.h b/include/plat/common/plat_trng.h
new file mode 100644
index 0000000..a9f73b6
--- /dev/null
+++ b/include/plat/common/plat_trng.h
@@ -0,0 +1,18 @@
+/*
+ * Copyright (c) 2021, ARM Limited. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef PLAT_TRNG_H
+#define PLAT_TRNG_H
+
+#include <tools_share/uuid.h>
+
+/* TRNG platform functions */
+
+extern uuid_t plat_trng_uuid;
+void plat_entropy_setup(void);
+bool plat_get_entropy(uint64_t *out);
+
+#endif /* PLAT_TRNG_H */
diff --git a/include/plat/common/platform.h b/include/plat/common/platform.h
new file mode 100644
index 0000000..8407bbd
--- /dev/null
+++ b/include/plat/common/platform.h
@@ -0,0 +1,424 @@
+/*
+ * Copyright (c) 2013-2022, Arm Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef PLATFORM_H
+#define PLATFORM_H
+
+#include <stdint.h>
+
+#include <lib/psci/psci.h>
+#if defined(SPD_spmd)
+ #include <services/spm_core_manifest.h>
+#endif
+#if ENABLE_RME
+#include <services/rmm_core_manifest.h>
+#endif
+#include <drivers/fwu/fwu_metadata.h>
+#if TRNG_SUPPORT
+#include "plat_trng.h"
+#endif /* TRNG_SUPPORT */
+#if DRTM_SUPPORT
+#include "plat_drtm.h"
+#endif /* DRTM_SUPPORT */
+
+/*******************************************************************************
+ * Forward declarations
+ ******************************************************************************/
+struct auth_img_desc_s;
+struct meminfo;
+struct image_info;
+struct entry_point_info;
+struct image_desc;
+struct bl_load_info;
+struct bl_params;
+struct mmap_region;
+struct spm_mm_boot_info;
+struct sp_res_desc;
+enum fw_enc_status_t;
+
+/*******************************************************************************
+ * plat_get_rotpk_info() flags
+ ******************************************************************************/
+#define ROTPK_IS_HASH			(1 << 0)
+/* Flag used to skip verification of the certificate ROTPK while the platform
+   ROTPK is not deployed */
+#define ROTPK_NOT_DEPLOYED		(1 << 1)
+
+/*******************************************************************************
+ * plat_get_enc_key_info() flags
+ ******************************************************************************/
+/*
+ * Flag used to notify caller that information provided in key buffer is an
+ * identifier rather than an actual key.
+ */
+#define ENC_KEY_IS_IDENTIFIER		(1 << 0)
+
+/*******************************************************************************
+ * Function declarations
+ ******************************************************************************/
+/*******************************************************************************
+ * Mandatory common functions
+ ******************************************************************************/
+unsigned int plat_get_syscnt_freq2(void);
+
+int plat_get_image_source(unsigned int image_id,
+			uintptr_t *dev_handle,
+			uintptr_t *image_spec);
+uintptr_t plat_get_ns_image_entrypoint(void);
+unsigned int plat_my_core_pos(void);
+int plat_core_pos_by_mpidr(u_register_t mpidr);
+int plat_get_mbedtls_heap(void **heap_addr, size_t *heap_size);
+
+#if STACK_PROTECTOR_ENABLED
+/*
+ * Return a new value to be used for the stack protection's canary.
+ *
+ * Ideally, this value is a random number that is impossible to predict by an
+ * attacker.
+ */
+u_register_t plat_get_stack_protector_canary(void);
+#endif /* STACK_PROTECTOR_ENABLED */
+
+/*******************************************************************************
+ * Mandatory interrupt management functions
+ ******************************************************************************/
+uint32_t plat_ic_get_pending_interrupt_id(void);
+uint32_t plat_ic_get_pending_interrupt_type(void);
+uint32_t plat_ic_acknowledge_interrupt(void);
+uint32_t plat_ic_get_interrupt_type(uint32_t id);
+void plat_ic_end_of_interrupt(uint32_t id);
+uint32_t plat_interrupt_type_to_line(uint32_t type,
+				     uint32_t security_state);
+
+/*******************************************************************************
+ * Optional interrupt management functions, depending on chosen EL3 components.
+ ******************************************************************************/
+unsigned int plat_ic_get_running_priority(void);
+int plat_ic_is_spi(unsigned int id);
+int plat_ic_is_ppi(unsigned int id);
+int plat_ic_is_sgi(unsigned int id);
+unsigned int plat_ic_get_interrupt_active(unsigned int id);
+void plat_ic_disable_interrupt(unsigned int id);
+void plat_ic_enable_interrupt(unsigned int id);
+int plat_ic_has_interrupt_type(unsigned int type);
+void plat_ic_set_interrupt_type(unsigned int id, unsigned int type);
+void plat_ic_set_interrupt_priority(unsigned int id, unsigned int priority);
+void plat_ic_raise_el3_sgi(int sgi_num, u_register_t target);
+void plat_ic_raise_ns_sgi(int sgi_num, u_register_t target);
+void plat_ic_raise_s_el1_sgi(int sgi_num, u_register_t target);
+void plat_ic_set_spi_routing(unsigned int id, unsigned int routing_mode,
+		u_register_t mpidr);
+void plat_ic_set_interrupt_pending(unsigned int id);
+void plat_ic_clear_interrupt_pending(unsigned int id);
+unsigned int plat_ic_set_priority_mask(unsigned int mask);
+unsigned int plat_ic_get_interrupt_id(unsigned int raw);
+
+/*******************************************************************************
+ * Optional common functions (may be overridden)
+ ******************************************************************************/
+uintptr_t plat_get_my_stack(void);
+void plat_report_exception(unsigned int exception_type);
+void plat_report_prefetch_abort(unsigned int fault_address);
+void plat_report_data_abort(unsigned int fault_address);
+int plat_crash_console_init(void);
+int plat_crash_console_putc(int c);
+void plat_crash_console_flush(void);
+void plat_error_handler(int err) __dead2;
+void plat_panic_handler(void) __dead2;
+void plat_system_reset(void) __dead2;
+const char *plat_log_get_prefix(unsigned int log_level);
+void bl2_plat_preload_setup(void);
+int plat_try_next_boot_source(void);
+
+#if MEASURED_BOOT
+int plat_mboot_measure_image(unsigned int image_id, image_info_t *image_data);
+int plat_mboot_measure_critical_data(unsigned int critical_data_id,
+				     const void *base,
+				     size_t size);
+#else
+static inline int plat_mboot_measure_image(unsigned int image_id __unused,
+					   image_info_t *image_data __unused)
+{
+	return 0;
+}
+static inline int plat_mboot_measure_critical_data(
+					unsigned int critical_data_id __unused,
+					const void *base __unused,
+					size_t size __unused)
+{
+	return 0;
+}
+#endif /* MEASURED_BOOT */
+
+/*******************************************************************************
+ * Mandatory BL1 functions
+ ******************************************************************************/
+void bl1_early_platform_setup(void);
+void bl1_plat_arch_setup(void);
+void bl1_platform_setup(void);
+struct meminfo *bl1_plat_sec_mem_layout(void);
+
+/*******************************************************************************
+ * Optional EL3 component functions in BL31
+ ******************************************************************************/
+
+/* SDEI platform functions */
+#if SDEI_SUPPORT
+void plat_sdei_setup(void);
+int plat_sdei_validate_entry_point(uintptr_t ep, unsigned int client_mode);
+void plat_sdei_handle_masked_trigger(uint64_t mpidr, unsigned int intr);
+#endif
+
+void plat_default_ea_handler(unsigned int ea_reason, uint64_t syndrome, void *cookie,
+		void *handle, uint64_t flags);
+void plat_ea_handler(unsigned int ea_reason, uint64_t syndrome, void *cookie,
+		void *handle, uint64_t flags);
+
+/*
+ * The following function is mandatory when the
+ * firmware update feature is used.
+ */
+int bl1_plat_mem_check(uintptr_t mem_base, unsigned int mem_size,
+		unsigned int flags);
+
+/*******************************************************************************
+ * Optional BL1 functions (may be overridden)
+ ******************************************************************************/
+/*
+ * The following functions are used for image loading process in BL1.
+ */
+void bl1_plat_set_ep_info(unsigned int image_id,
+		struct entry_point_info *ep_info);
+/*
+ * The following functions are mandatory when firmware update
+ * feature is used and optional otherwise.
+ */
+unsigned int bl1_plat_get_next_image_id(void);
+struct image_desc *bl1_plat_get_image_desc(unsigned int image_id);
+
+/*
+ * The following functions are used by firmware update
+ * feature and may optionally be overridden.
+ */
+__dead2 void bl1_plat_fwu_done(void *client_cookie, void *reserved);
+
+/*
+ * This BL1 function can be used by the platforms to update/use image
+ * information for a given `image_id`.
+ */
+int bl1_plat_handle_pre_image_load(unsigned int image_id);
+int bl1_plat_handle_post_image_load(unsigned int image_id);
+
+#if MEASURED_BOOT
+void bl1_plat_mboot_init(void);
+void bl1_plat_mboot_finish(void);
+#else
+static inline void bl1_plat_mboot_init(void)
+{
+}
+static inline void bl1_plat_mboot_finish(void)
+{
+}
+#endif /* MEASURED_BOOT */
+
+/*******************************************************************************
+ * Mandatory BL2 functions
+ ******************************************************************************/
+void bl2_early_platform_setup2(u_register_t arg0, u_register_t arg1, u_register_t arg2, u_register_t arg3);
+void bl2_plat_arch_setup(void);
+void bl2_platform_setup(void);
+struct meminfo *bl2_plat_sec_mem_layout(void);
+
+/*
+ * This function can be used by the platforms to update/use image
+ * information for given `image_id`.
+ */
+int bl2_plat_handle_pre_image_load(unsigned int image_id);
+int bl2_plat_handle_post_image_load(unsigned int image_id);
+
+/*******************************************************************************
+ * Optional BL2 functions (may be overridden)
+ ******************************************************************************/
+#if MEASURED_BOOT
+void bl2_plat_mboot_init(void);
+void bl2_plat_mboot_finish(void);
+#else
+static inline void bl2_plat_mboot_init(void)
+{
+}
+static inline void bl2_plat_mboot_finish(void)
+{
+}
+#endif /* MEASURED_BOOT */
+
+/*******************************************************************************
+ * Mandatory BL2 at EL3 functions: Must be implemented if BL2_AT_EL3 image is
+ * supported
+ ******************************************************************************/
+void bl2_el3_early_platform_setup(u_register_t arg0, u_register_t arg1,
+				  u_register_t arg2, u_register_t arg3);
+void bl2_el3_plat_arch_setup(void);
+
+/*******************************************************************************
+ * Optional BL2 at EL3 functions (may be overridden)
+ ******************************************************************************/
+void bl2_el3_plat_prepare_exit(void);
+
+/*******************************************************************************
+ * Mandatory BL2U functions.
+ ******************************************************************************/
+void bl2u_early_platform_setup(struct meminfo *mem_layout,
+		void *plat_info);
+void bl2u_plat_arch_setup(void);
+void bl2u_platform_setup(void);
+
+/*******************************************************************************
+ * Conditionally mandatory BL2U functions for CSS platforms.
+ ******************************************************************************/
+/*
+ * This function is used to perform any platform-specific actions required to
+ * handle the BL2U_SCP firmware.
+ */
+int bl2u_plat_handle_scp_bl2u(void);
+
+/*******************************************************************************
+ * Mandatory BL31 functions
+ ******************************************************************************/
+void bl31_early_platform_setup2(u_register_t arg0, u_register_t arg1,
+		u_register_t arg2, u_register_t arg3);
+void bl31_plat_arch_setup(void);
+void bl31_platform_setup(void);
+void bl31_plat_runtime_setup(void);
+struct entry_point_info *bl31_plat_get_next_image_ep_info(uint32_t type);
+
+/*******************************************************************************
+ * Mandatory PSCI functions (BL31)
+ ******************************************************************************/
+int plat_setup_psci_ops(uintptr_t sec_entrypoint,
+			const struct plat_psci_ops **psci_ops);
+const unsigned char *plat_get_power_domain_tree_desc(void);
+
+/*******************************************************************************
+ * Optional PSCI functions (BL31).
+ ******************************************************************************/
+void plat_psci_stat_accounting_start(const psci_power_state_t *state_info);
+void plat_psci_stat_accounting_stop(const psci_power_state_t *state_info);
+u_register_t plat_psci_stat_get_residency(unsigned int lvl,
+			const psci_power_state_t *state_info,
+			unsigned int last_cpu_idx);
+plat_local_state_t plat_get_target_pwr_state(unsigned int lvl,
+			const plat_local_state_t *states,
+			unsigned int ncpu);
+
+/*******************************************************************************
+ * Mandatory BL31 functions when ENABLE_RME=1
+ ******************************************************************************/
+#if ENABLE_RME
+int plat_rmmd_get_cca_attest_token(uintptr_t buf, size_t *len,
+				   uintptr_t hash, size_t hash_size);
+int plat_rmmd_get_cca_realm_attest_key(uintptr_t buf, size_t *len,
+				       unsigned int type);
+size_t plat_rmmd_get_el3_rmm_shared_mem(uintptr_t *shared);
+int plat_rmmd_load_manifest(rmm_manifest_t *manifest);
+#endif
+
+/*******************************************************************************
+ * Optional BL31 functions (may be overridden)
+ ******************************************************************************/
+void bl31_plat_enable_mmu(uint32_t flags);
+
+/*******************************************************************************
+ * Optional BL32 functions (may be overridden)
+ ******************************************************************************/
+void bl32_plat_enable_mmu(uint32_t flags);
+
+/*******************************************************************************
+ * Trusted Board Boot functions
+ ******************************************************************************/
+int plat_get_rotpk_info(void *cookie, void **key_ptr, unsigned int *key_len,
+			unsigned int *flags);
+int plat_get_nv_ctr(void *cookie, unsigned int *nv_ctr);
+int plat_set_nv_ctr(void *cookie, unsigned int nv_ctr);
+int plat_set_nv_ctr2(void *cookie, const struct auth_img_desc_s *img_desc,
+		unsigned int nv_ctr);
+int plat_convert_pk(void *full_pk_ptr, unsigned int full_pk_len,
+		    void **hashed_pk_ptr, unsigned int *hash_pk_len);
+int get_mbedtls_heap_helper(void **heap_addr, size_t *heap_size);
+int plat_get_enc_key_info(enum fw_enc_status_t fw_enc_status, uint8_t *key,
+			  size_t *key_len, unsigned int *flags,
+			  const uint8_t *img_id, size_t img_id_len);
+
+/*******************************************************************************
+ * Secure Partitions functions
+ ******************************************************************************/
+const struct mmap_region *plat_get_secure_partition_mmap(void *cookie);
+const struct spm_mm_boot_info *plat_get_secure_partition_boot_info(
+		void *cookie);
+int plat_spm_sp_rd_load(struct sp_res_desc *rd, const void *ptr, size_t size);
+int plat_spm_sp_get_next_address(void **sp_base, size_t *sp_size,
+				 void **rd_base, size_t *rd_size);
+#if defined(SPD_spmd)
+int plat_spm_core_manifest_load(spmc_manifest_attribute_t *manifest,
+				const void *pm_addr);
+#endif
+#if defined(SPMC_AT_EL3)
+int plat_spmc_shmem_datastore_get(uint8_t **datastore, size_t *size);
+#endif
+
+/*******************************************************************************
+ * Mandatory BL image load functions(may be overridden).
+ ******************************************************************************/
+/*
+ * This function returns pointer to the list of images that the
+ * platform has populated to load.
+ */
+struct bl_load_info *plat_get_bl_image_load_info(void);
+
+/*
+ * This function returns a pointer to the shared memory that the
+ * platform has kept aside to pass trusted firmware related
+ * information that next BL image could need.
+ */
+struct bl_params *plat_get_next_bl_params(void);
+
+/*
+ * This function flushes to main memory all the params that are
+ * passed to next image.
+ */
+void plat_flush_next_bl_params(void);
+
+/*
+ * The below function enable Trusted Firmware components like SPDs which
+ * haven't migrated to the new platform API to compile on platforms which
+ * have the compatibility layer disabled.
+ */
+unsigned int platform_core_pos_helper(unsigned long mpidr);
+
+/*
+ * Optional function to get SOC version
+ */
+int32_t plat_get_soc_version(void);
+
+/*
+ * Optional function to get SOC revision
+ */
+int32_t plat_get_soc_revision(void);
+
+/*
+ * Optional function to check for SMCCC function availability for platform
+ */
+int32_t plat_is_smccc_feature_available(u_register_t fid);
+
+/*******************************************************************************
+ * FWU platform specific functions
+ ******************************************************************************/
+int plat_fwu_set_metadata_image_source(unsigned int image_id,
+				       uintptr_t *dev_handle,
+				       uintptr_t *image_spec);
+void plat_fwu_set_images_source(const struct fwu_metadata *metadata);
+uint32_t plat_fwu_get_boot_idx(void);
+
+#endif /* PLATFORM_H */