blob: e96e71958ef7e6baae27d8c745697dee93e46679 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
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 */
|
