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https://github.com/ARM-software/arm-trusted-firmware.git
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d5f225d95d
Added a platform function to check passed region is within the Non-Secure region of DRAM. Signed-off-by: Manish V Badarkhe <Manish.Badarkhe@arm.com> Change-Id: Ie5808fa6a1b6e6bc99f4185fa8acc52af0d5f14d
74 lines
2.1 KiB
C
74 lines
2.1 KiB
C
/*
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* Copyright (c) 2022, Arm Limited. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#ifndef PLAT_DRTM_H
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#define PLAT_DRTM_H
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#include <stdint.h>
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#include <lib/xlat_tables/xlat_tables_compat.h>
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typedef struct {
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uint8_t max_num_mem_prot_regions;
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uint8_t dma_protection_support;
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} plat_drtm_dma_prot_features_t;
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typedef struct {
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bool tpm_based_hash_support;
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uint32_t firmware_hash_algorithm;
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} plat_drtm_tpm_features_t;
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typedef struct {
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uint64_t region_address;
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uint64_t region_size_type;
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} __attribute__((packed)) drtm_mem_region_t;
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/*
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* Memory region descriptor table structure as per DRTM beta0 section 3.13
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* Table 11 MEMORY_REGION_DESCRIPTOR_TABLE
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*/
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typedef struct {
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uint16_t revision;
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uint16_t reserved;
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uint32_t num_regions;
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drtm_mem_region_t region[];
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} __attribute__((packed)) drtm_memory_region_descriptor_table_t;
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/* platform specific address map functions */
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const mmap_region_t *plat_get_addr_mmap(void);
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/* platform-specific DMA protection functions */
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bool plat_has_non_host_platforms(void);
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bool plat_has_unmanaged_dma_peripherals(void);
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unsigned int plat_get_total_smmus(void);
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void plat_enumerate_smmus(const uintptr_t **smmus_out,
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size_t *smmu_count_out);
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const plat_drtm_dma_prot_features_t *plat_drtm_get_dma_prot_features(void);
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uint64_t plat_drtm_dma_prot_get_max_table_bytes(void);
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/* platform-specific TPM functions */
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const plat_drtm_tpm_features_t *plat_drtm_get_tpm_features(void);
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/*
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* TODO: Implement these functions as per the platform use case,
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* as of now none of the platform uses these functions
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*/
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uint64_t plat_drtm_get_min_size_normal_world_dce(void);
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uint64_t plat_drtm_get_tcb_hash_table_size(void);
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uint64_t plat_drtm_get_imp_def_dlme_region_size(void);
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uint64_t plat_drtm_get_tcb_hash_features(void);
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/* DRTM error handling functions */
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int plat_set_drtm_error(uint64_t error_code);
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int plat_get_drtm_error(uint64_t *error_code);
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/*
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* Platform-specific function to ensure passed region lies within
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* Non-Secure region of DRAM
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*/
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int plat_drtm_validate_ns_region(uintptr_t region_start,
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size_t region_size);
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#endif /* PLAT_DRTM_H */
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