1 /* SPDX-License-Identifier: BSD-3-Clause */
3 * This is from the ARM TF Project,
4 * Repository: https://github.com/ARM-software/arm-trusted-firmware.git
5 * File: include/common/bl_common.h
6 * Portions copyright (c) 2013-2016, ARM Limited and Contributors. All rights
8 * Copyright (C) 2016-2017 Rockchip Electronic Co.,Ltd
11 #ifndef __BL_COMMON_H__
12 #define __BL_COMMON_H__
14 #define ATF_PARAM_EP 0x01
15 #define ATF_PARAM_IMAGE_BINARY 0x02
16 #define ATF_PARAM_BL31 0x03
17 #define ATF_PARAM_BL_PARAMS 0x05
19 #define ATF_VERSION_1 0x01
20 #define ATF_VERSION_2 0x02
22 #define ATF_BL31_IMAGE_ID 0x03
23 #define ATF_BL32_IMAGE_ID 0x04
24 #define ATF_BL33_IMAGE_ID 0x05
26 #define ATF_EP_SECURE 0x0
27 #define ATF_EP_NON_SECURE 0x1
29 #define SET_PARAM_HEAD(_p, _type, _ver, _attr) do { \
30 (_p)->h.type = (uint8_t)(_type); \
31 (_p)->h.version = (uint8_t)(_ver); \
32 (_p)->h.size = (uint16_t)sizeof(*_p); \
33 (_p)->h.attr = (uint32_t)(_attr) ; \
36 #define MODE_RW_SHIFT 0x4
37 #define MODE_RW_MASK 0x1
38 #define MODE_RW_64 0x0
39 #define MODE_RW_32 0x1
41 #define MODE_EL_SHIFT 0x2
42 #define MODE_EL_MASK 0x3
48 #define MODE_SP_SHIFT 0x0
49 #define MODE_SP_MASK 0x1
50 #define MODE_SP_EL0 0x0
51 #define MODE_SP_ELX 0x1
53 #define SPSR_DAIF_SHIFT 6
54 #define SPSR_DAIF_MASK 0x0f
56 #define SPSR_64(el, sp, daif) \
57 (MODE_RW_64 << MODE_RW_SHIFT | \
58 ((el) & MODE_EL_MASK) << MODE_EL_SHIFT | \
59 ((sp) & MODE_SP_MASK) << MODE_SP_SHIFT | \
60 ((daif) & SPSR_DAIF_MASK) << SPSR_DAIF_SHIFT)
62 #define SPSR_FIQ (1 << 6)
63 #define SPSR_IRQ (1 << 7)
64 #define SPSR_SERROR (1 << 8)
65 #define SPSR_DEBUG (1 << 9)
66 #define SPSR_EXCEPTION_MASK (SPSR_FIQ | SPSR_IRQ | SPSR_SERROR | SPSR_DEBUG)
68 #define DAIF_FIQ_BIT (1<<0)
69 #define DAIF_IRQ_BIT (1<<1)
70 #define DAIF_ABT_BIT (1<<2)
71 #define DAIF_DBG_BIT (1<<3)
72 #define DISABLE_ALL_EXECPTIONS \
73 (DAIF_FIQ_BIT | DAIF_IRQ_BIT | DAIF_ABT_BIT | DAIF_DBG_BIT)
77 /*******************************************************************************
78 * Structure used for telling the next BL how much of a particular type of
79 * memory is available for its use and how much is already used.
80 ******************************************************************************/
81 struct aapcs64_params {
92 /***************************************************************************
93 * This structure provides version information and the size of the
94 * structure, attributes for the structure it represents
95 ***************************************************************************/
97 uint8_t type; /* type of the structure */
98 uint8_t version; /* version of this structure */
99 uint16_t size; /* size of this structure in bytes */
100 uint32_t attr; /* attributes: unused bits SBZ */
103 /*****************************************************************************
104 * This structure represents the superset of information needed while
105 * switching exception levels. The only two mechanisms to do so are
106 * ERET & SMC. Security state is indicated using bit zero of header
108 * NOTE: BL1 expects entrypoint followed by spsr at an offset from the start
109 * of this structure defined by the macro `ENTRY_POINT_INFO_PC_OFFSET` while
110 * processing SMC to jump to BL31.
111 *****************************************************************************/
112 struct entry_point_info {
113 struct param_header h;
116 struct aapcs64_params args;
119 /*****************************************************************************
120 * Image info binary provides information from the image loader that
121 * can be used by the firmware to manage available trusted RAM.
122 * More advanced firmware image formats can provide additional
123 * information that enables optimization or greater flexibility in the
124 * common firmware code
125 *****************************************************************************/
126 struct atf_image_info {
127 struct param_header h;
128 uintptr_t image_base; /* physical address of base of image */
129 uint32_t image_size; /* bytes read from image file */
130 #if CONFIG_IS_ENABLED(ATF_LOAD_IMAGE_V2)
131 uint32_t image_max_size;
135 /*****************************************************************************
136 * The image descriptor struct definition.
137 *****************************************************************************/
139 /* Contains unique image id for the image. */
140 unsigned int image_id;
142 * This member contains Image state information.
143 * Refer IMAGE_STATE_XXX defined above.
146 uint32_t copied_size; /* image size copied in blocks */
147 struct atf_image_info atf_image_info;
148 struct entry_point_info ep_info;
151 /*******************************************************************************
152 * This structure represents the superset of information that can be passed to
153 * BL31 e.g. while passing control to it from BL2. The BL32 parameters will be
154 * populated only if BL2 detects its presence. A pointer to a structure of this
155 * type should be passed in X0 to BL31's cold boot entrypoint.
157 * Use of this structure and the X0 parameter is not mandatory: the BL31
158 * platform code can use other mechanisms to provide the necessary information
159 * about BL32 and BL33 to the common and SPD code.
161 * BL31 image information is mandatory if this structure is used. If either of
162 * the optional BL32 and BL33 image information is not provided, this is
163 * indicated by the respective image_info pointers being zero.
164 ******************************************************************************/
166 struct param_header h;
167 struct atf_image_info *bl31_image_info;
168 struct entry_point_info *bl32_ep_info;
169 struct atf_image_info *bl32_image_info;
170 struct entry_point_info *bl33_ep_info;
171 struct atf_image_info *bl33_image_info;
174 /* BL image node in the BL image execution sequence */
175 struct bl_params_node {
176 unsigned int image_id;
177 struct atf_image_info *image_info;
178 struct entry_point_info *ep_info;
179 struct bl_params_node *next_params_info;
183 * BL image head node in the BL image execution sequence
184 * It is also used to pass information to next BL image.
187 struct param_header h;
188 struct bl_params_node *head;
191 #define for_each_bl_params_node(bl_params, node) \
192 for ((node) = (bl_params)->head; \
194 (node) = (node)->next_params_info)
196 #endif /*__ASSEMBLY__ */
198 #endif /* __BL_COMMON_H__ */