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) 2022-2023, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#ifndef EMI_MPU_H
#define EMI_MPU_H
#include <emi_mpu_priv.h>
#include <platform_def.h>
#define NO_PROTECTION (0)
#define SEC_RW (1)
#define SEC_RW_NSEC_R (2)
#define SEC_RW_NSEC_W (3)
#define SEC_R_NSEC_R (4)
#define FORBIDDEN (5)
#define SEC_R_NSEC_RW (6)
#define LOCK (1)
#define UNLOCK (0)
#if (EMI_MPU_DGROUP_NUM == 1)
#define SET_ACCESS_PERMISSION(apc_ary, lock, d7, d6, d5, d4, d3, d2, d1, d0) \
do { \
apc_ary[1] = 0; \
apc_ary[0] = \
(((unsigned int) d7) << 21) | (((unsigned int) d6) << 18) | \
(((unsigned int) d5) << 15) | (((unsigned int) d4) << 12) | \
(((unsigned int) d3) << 9) | (((unsigned int) d2) << 6) | \
(((unsigned int) d1) << 3) | ((unsigned int) d0) | \
((unsigned int) lock << 31); \
} while (0)
#elif (EMI_MPU_DGROUP_NUM == 2)
#define SET_ACCESS_PERMISSION(apc_ary, lock, d15, d14, d13, d12, d11, d10, \
d9, d8, d7, d6, d5, d4, d3, d2, d1, d0) \
do { \
apc_ary[1] = \
(((unsigned int) d15) << 21) | (((unsigned int) d14) << 18) | \
(((unsigned int) d13) << 15) | (((unsigned int) d12) << 12) | \
(((unsigned int) d11) << 9) | (((unsigned int) d10) << 6) | \
(((unsigned int) d9) << 3) | ((unsigned int) d8); \
apc_ary[0] = \
(((unsigned int) d7) << 21) | (((unsigned int) d6) << 18) | \
(((unsigned int) d5) << 15) | (((unsigned int) d4) << 12) | \
(((unsigned int) d3) << 9) | (((unsigned int) d2) << 6) | \
(((unsigned int) d1) << 3) | ((unsigned int) d0) | \
((unsigned int) lock << 31); \
} while (0)
#endif
struct emi_region_info_t {
unsigned long long start;
unsigned long long end;
unsigned int region;
unsigned int apc[EMI_MPU_DGROUP_NUM];
};
enum MPU_REQ_ORIGIN_ZONE_ID {
MPU_REQ_ORIGIN_TEE_ZONE_SVP = 0,
MPU_REQ_ORIGIN_TEE_ZONE_TUI = 1,
MPU_REQ_ORIGIN_TEE_ZONE_WFD = 2,
MPU_REQ_ORIGIN_TEE_ZONE_MAX = 3,
MPU_REQ_ORIGIN_ZONE_INVALID = 0x7FFFFFFF,
};
int emi_mpu_init(void);
int emi_mpu_optee_handler(uint64_t encoded_addr, uint64_t zone_size,
uint64_t zone_info);
int emi_mpu_set_protection(struct emi_region_info_t *region_info);
void set_emi_mpu_regions(void);
int set_apu_emi_mpu_region(void);
#endif
|
