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Yatharth Kocharf9a0f162016-09-13 17:07:57 +01001/*
Manish Pandey1fa6ecb2020-02-25 11:38:19 +00002 * Copyright (c) 2016-2020, ARM Limited and Contributors. All rights reserved.
Yatharth Kocharf9a0f162016-09-13 17:07:57 +01003 *
dp-armfa3cf0b2017-05-03 09:38:09 +01004 * SPDX-License-Identifier: BSD-3-Clause
Yatharth Kocharf9a0f162016-09-13 17:07:57 +01005 */
6
Sathees Balya90950092018-11-15 14:22:30 +00007#include <assert.h>
Antonio Nino Diaze0f90632018-12-14 00:18:21 +00008#include <common/bl_common.h>
9#include <common/desc_image_load.h>
Manish Pandey1fa6ecb2020-02-25 11:38:19 +000010#if defined(SPD_spmd)
11#include <plat/arm/common/fconf_arm_sp_getter.h>
12#endif
Antonio Nino Diazbd7b7402019-01-25 14:30:04 +000013#include <plat/arm/common/plat_arm.h>
Antonio Nino Diaze0f90632018-12-14 00:18:21 +000014#include <plat/common/platform.h>
15
Yatharth Kocharf9a0f162016-09-13 17:07:57 +010016#pragma weak plat_flush_next_bl_params
17#pragma weak plat_get_bl_image_load_info
18#pragma weak plat_get_next_bl_params
19
Sathees Balya90950092018-11-15 14:22:30 +000020static bl_params_t *next_bl_params_cpy_ptr;
Yatharth Kocharf9a0f162016-09-13 17:07:57 +010021
22/*******************************************************************************
23 * This function flushes the data structures so that they are visible
24 * in memory for the next BL image.
25 ******************************************************************************/
26void plat_flush_next_bl_params(void)
27{
Sathees Balya90950092018-11-15 14:22:30 +000028 assert(next_bl_params_cpy_ptr != NULL);
29
30 flush_bl_params_desc_args(bl_mem_params_desc_ptr,
31 bl_mem_params_desc_num,
32 next_bl_params_cpy_ptr);
Yatharth Kocharf9a0f162016-09-13 17:07:57 +010033}
34
Olivier Deprez042db532020-03-19 09:27:11 +010035#if defined(SPD_spmd) && SPMD_SPM_AT_SEL2
Manish Pandey1fa6ecb2020-02-25 11:38:19 +000036/*******************************************************************************
37 * This function appends Secure Partitions to list of loadable images.
38 ******************************************************************************/
Olivier Deprez042db532020-03-19 09:27:11 +010039static void plat_add_sp_images_load_info(struct bl_load_info *load_info)
Manish Pandey1fa6ecb2020-02-25 11:38:19 +000040{
Heyi Guo578408f2021-01-25 21:45:47 +080041 bl_load_info_node_t *curr_node = load_info->head;
42 bl_load_info_node_t *prev_node;
Manish Pandey1fa6ecb2020-02-25 11:38:19 +000043
Heyi Guo578408f2021-01-25 21:45:47 +080044 /* Shortcut for empty SP list */
45 if (sp_mem_params_descs[0].image_id == 0) {
Manish Pandey1fa6ecb2020-02-25 11:38:19 +000046 ERROR("No Secure Partition Image available\n");
47 return;
48 }
49
50 /* Traverse through the bl images list */
51 do {
Heyi Guo578408f2021-01-25 21:45:47 +080052 curr_node = curr_node->next_load_info;
53 } while (curr_node->next_load_info != NULL);
Manish Pandey1fa6ecb2020-02-25 11:38:19 +000054
Heyi Guo578408f2021-01-25 21:45:47 +080055 prev_node = curr_node;
Heyi Guo3dd94932021-01-25 21:45:47 +080056
Heyi Guo578408f2021-01-25 21:45:47 +080057 for (unsigned int index = 0; index < MAX_SP_IDS; index++) {
58 if (sp_mem_params_descs[index].image_id == 0) {
Manish Pandey1fa6ecb2020-02-25 11:38:19 +000059 return;
60 }
Heyi Guo578408f2021-01-25 21:45:47 +080061 curr_node = &sp_mem_params_descs[index].load_node_mem;
62 /* Populate the image information */
63 curr_node->image_id = sp_mem_params_descs[index].image_id;
64 curr_node->image_info = &sp_mem_params_descs[index].image_info;
Manish Pandey1fa6ecb2020-02-25 11:38:19 +000065
Heyi Guo578408f2021-01-25 21:45:47 +080066 prev_node->next_load_info = curr_node;
67 prev_node = curr_node;
Manish Pandey1fa6ecb2020-02-25 11:38:19 +000068 }
Heyi Guo578408f2021-01-25 21:45:47 +080069
70 INFO("Reached Max number of SPs\n");
Manish Pandey1fa6ecb2020-02-25 11:38:19 +000071}
72#endif
73
Yatharth Kocharf9a0f162016-09-13 17:07:57 +010074/*******************************************************************************
75 * This function returns the list of loadable images.
76 ******************************************************************************/
Sandrine Bailleuxb3b6e222018-07-11 12:44:22 +020077struct bl_load_info *plat_get_bl_image_load_info(void)
Yatharth Kocharf9a0f162016-09-13 17:07:57 +010078{
Olivier Deprez042db532020-03-19 09:27:11 +010079#if defined(SPD_spmd) && SPMD_SPM_AT_SEL2
Manish Pandey1fa6ecb2020-02-25 11:38:19 +000080 bl_load_info_t *bl_load_info;
81
82 bl_load_info = get_bl_load_info_from_mem_params_desc();
83 plat_add_sp_images_load_info(bl_load_info);
84
85 return bl_load_info;
86#else
Yatharth Kocharf9a0f162016-09-13 17:07:57 +010087 return get_bl_load_info_from_mem_params_desc();
Manish Pandey1fa6ecb2020-02-25 11:38:19 +000088#endif
Yatharth Kocharf9a0f162016-09-13 17:07:57 +010089}
90
91/*******************************************************************************
Sathees Balya90950092018-11-15 14:22:30 +000092 * ARM helper function to return the list of executable images.Since the default
93 * descriptors are allocated within BL2 RW memory, this prevents BL31/BL32
94 * overlay of BL2 memory. Hence this function also copies the descriptors to a
95 * pre-allocated memory indicated by ARM_BL2_MEM_DESC_BASE.
Yatharth Kocharf9a0f162016-09-13 17:07:57 +010096 ******************************************************************************/
Sathees Balya90950092018-11-15 14:22:30 +000097struct bl_params *arm_get_next_bl_params(void)
Yatharth Kocharf9a0f162016-09-13 17:07:57 +010098{
Sathees Balya90950092018-11-15 14:22:30 +000099 bl_mem_params_node_t *bl2_mem_params_descs_cpy
100 = (bl_mem_params_node_t *)ARM_BL2_MEM_DESC_BASE;
101 const bl_params_t *next_bl_params;
102
103 next_bl_params_cpy_ptr =
104 (bl_params_t *)(ARM_BL2_MEM_DESC_BASE +
105 (bl_mem_params_desc_num * sizeof(bl_mem_params_node_t)));
106
107 /*
108 * Copy the memory descriptors to ARM_BL2_MEM_DESC_BASE area.
109 */
110 (void) memcpy(bl2_mem_params_descs_cpy, bl_mem_params_desc_ptr,
111 (bl_mem_params_desc_num * sizeof(bl_mem_params_node_t)));
Soby Mathew96a1c6b2018-01-15 14:45:33 +0000112
Sathees Balya90950092018-11-15 14:22:30 +0000113 /*
114 * Modify the global 'bl_mem_params_desc_ptr' to point to the
115 * copied location.
116 */
117 bl_mem_params_desc_ptr = bl2_mem_params_descs_cpy;
118
119 next_bl_params = get_next_bl_params_from_mem_params_desc();
120 assert(next_bl_params != NULL);
121
122 /*
123 * Copy 'next_bl_params' to the reserved location after the copied
124 * memory descriptors.
125 */
126 (void) memcpy(next_bl_params_cpy_ptr, next_bl_params,
127 (sizeof(bl_params_t)));
128
129 populate_next_bl_params_config(next_bl_params_cpy_ptr);
130
131 return next_bl_params_cpy_ptr;
Yatharth Kocharf9a0f162016-09-13 17:07:57 +0100132}
Sathees Balya90950092018-11-15 14:22:30 +0000133
134/*******************************************************************************
135 * This function returns the list of executable images
136 ******************************************************************************/
137struct bl_params *plat_get_next_bl_params(void)
138{
139 return arm_get_next_bl_params();
140}
141