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
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
|
/*
* Copyright (c) 2017-2018, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <debug.h>
#include <platform_def.h>
#include <xlat_tables_defs.h>
#include <xlat_tables_v2.h>
#include "xlat_tables_private.h"
/*
* Each platform can define the size of its physical and virtual address spaces.
* If the platform hasn't defined one or both of them, default to
* ADDR_SPACE_SIZE. The latter is deprecated, though.
*/
#if ERROR_DEPRECATED
# ifdef ADDR_SPACE_SIZE
# error "ADDR_SPACE_SIZE is deprecated. Use PLAT_xxx_ADDR_SPACE_SIZE instead."
# endif
#elif defined(ADDR_SPACE_SIZE)
# ifndef PLAT_PHY_ADDR_SPACE_SIZE
# define PLAT_PHY_ADDR_SPACE_SIZE ADDR_SPACE_SIZE
# endif
# ifndef PLAT_VIRT_ADDR_SPACE_SIZE
# define PLAT_VIRT_ADDR_SPACE_SIZE ADDR_SPACE_SIZE
# endif
#endif
/*
* Allocate and initialise the default translation context for the BL image
* currently executing.
*/
REGISTER_XLAT_CONTEXT(tf, MAX_MMAP_REGIONS, MAX_XLAT_TABLES,
PLAT_VIRT_ADDR_SPACE_SIZE, PLAT_PHY_ADDR_SPACE_SIZE);
void mmap_add_region(unsigned long long base_pa, uintptr_t base_va, size_t size,
unsigned int attr)
{
mmap_region_t mm = MAP_REGION(base_pa, base_va, size, attr);
mmap_add_region_ctx(&tf_xlat_ctx, &mm);
}
void mmap_add(const mmap_region_t *mm)
{
mmap_add_ctx(&tf_xlat_ctx, mm);
}
#if PLAT_XLAT_TABLES_DYNAMIC
int mmap_add_dynamic_region(unsigned long long base_pa, uintptr_t base_va,
size_t size, unsigned int attr)
{
mmap_region_t mm = MAP_REGION(base_pa, base_va, size, attr);
return mmap_add_dynamic_region_ctx(&tf_xlat_ctx, &mm);
}
int mmap_remove_dynamic_region(uintptr_t base_va, size_t size)
{
return mmap_remove_dynamic_region_ctx(&tf_xlat_ctx,
base_va, size);
}
#endif /* PLAT_XLAT_TABLES_DYNAMIC */
void init_xlat_tables(void)
{
init_xlat_tables_ctx(&tf_xlat_ctx);
}
/*
* If dynamic allocation of new regions is disabled then by the time we call the
* function enabling the MMU, we'll have registered all the memory regions to
* map for the system's lifetime. Therefore, at this point we know the maximum
* physical address that will ever be mapped.
*
* If dynamic allocation is enabled then we can't make any such assumption
* because the maximum physical address could get pushed while adding a new
* region. Therefore, in this case we have to assume that the whole address
* space size might be mapped.
*/
#ifdef PLAT_XLAT_TABLES_DYNAMIC
#define MAX_PHYS_ADDR tf_xlat_ctx.pa_max_address
#else
#define MAX_PHYS_ADDR tf_xlat_ctx.max_pa
#endif
#ifdef AARCH32
void enable_mmu_secure(unsigned int flags)
{
setup_mmu_cfg(flags, tf_xlat_ctx.base_table, MAX_PHYS_ADDR,
tf_xlat_ctx.va_max_address);
enable_mmu_direct(flags);
}
#else
void enable_mmu_el1(unsigned int flags)
{
setup_mmu_cfg(flags, tf_xlat_ctx.base_table, MAX_PHYS_ADDR,
tf_xlat_ctx.va_max_address);
enable_mmu_direct_el1(flags);
}
void enable_mmu_el3(unsigned int flags)
{
setup_mmu_cfg(flags, tf_xlat_ctx.base_table, MAX_PHYS_ADDR,
tf_xlat_ctx.va_max_address);
enable_mmu_direct_el3(flags);
}
#endif /* AARCH32 */
|
