mirror of
https://github.com/ARM-software/arm-trusted-firmware.git
synced 2025-04-17 01:54:22 +00:00
3443a7027d
Attempts to address MISRA compliance issues in BL1, BL2, and BL31 code. Mainly issues like not using boolean expressions in conditionals, conflicting variable names, ignoring return values without (void), adding explicit casts, etc. Change-Id: If1fa18ab621b9c374db73fa6eaa6f6e5e55c146a Signed-off-by: John Powell <john.powell@arm.com>
111 lines
3.3 KiB
C
111 lines
3.3 KiB
C
/*
|
|
* Copyright (c) 2016-2020, ARM Limited and Contributors. All rights reserved.
|
|
*
|
|
* SPDX-License-Identifier: BSD-3-Clause
|
|
*/
|
|
|
|
#include <assert.h>
|
|
#include <stdint.h>
|
|
|
|
#include <platform_def.h>
|
|
|
|
#include <arch.h>
|
|
#include <arch_helpers.h>
|
|
#include <common/bl_common.h>
|
|
#include <common/debug.h>
|
|
#include <common/desc_image_load.h>
|
|
#include <drivers/auth/auth_mod.h>
|
|
#include <plat/common/platform.h>
|
|
|
|
#include "bl2_private.h"
|
|
|
|
/*******************************************************************************
|
|
* This function loads SCP_BL2/BL3x images and returns the ep_info for
|
|
* the next executable image.
|
|
******************************************************************************/
|
|
struct entry_point_info *bl2_load_images(void)
|
|
{
|
|
bl_params_t *bl2_to_next_bl_params;
|
|
bl_load_info_t *bl2_load_info;
|
|
const bl_load_info_node_t *bl2_node_info;
|
|
int plat_setup_done = 0;
|
|
int err;
|
|
|
|
/*
|
|
* Get information about the images to load.
|
|
*/
|
|
bl2_load_info = plat_get_bl_image_load_info();
|
|
assert(bl2_load_info != NULL);
|
|
assert(bl2_load_info->head != NULL);
|
|
assert(bl2_load_info->h.type == PARAM_BL_LOAD_INFO);
|
|
assert(bl2_load_info->h.version >= VERSION_2);
|
|
bl2_node_info = bl2_load_info->head;
|
|
|
|
while (bl2_node_info != NULL) {
|
|
/*
|
|
* Perform platform setup before loading the image,
|
|
* if indicated in the image attributes AND if NOT
|
|
* already done before.
|
|
*/
|
|
if ((bl2_node_info->image_info->h.attr &
|
|
IMAGE_ATTRIB_PLAT_SETUP) != 0U) {
|
|
if (plat_setup_done != 0) {
|
|
WARN("BL2: Platform setup already done!!\n");
|
|
} else {
|
|
INFO("BL2: Doing platform setup\n");
|
|
bl2_platform_setup();
|
|
plat_setup_done = 1;
|
|
}
|
|
}
|
|
|
|
err = bl2_plat_handle_pre_image_load(bl2_node_info->image_id);
|
|
if (err != 0) {
|
|
ERROR("BL2: Failure in pre image load handling (%i)\n", err);
|
|
plat_error_handler(err);
|
|
}
|
|
|
|
if ((bl2_node_info->image_info->h.attr &
|
|
IMAGE_ATTRIB_SKIP_LOADING) == 0U) {
|
|
INFO("BL2: Loading image id %d\n", bl2_node_info->image_id);
|
|
err = load_auth_image(bl2_node_info->image_id,
|
|
bl2_node_info->image_info);
|
|
if (err != 0) {
|
|
ERROR("BL2: Failed to load image id %d (%i)\n",
|
|
bl2_node_info->image_id, err);
|
|
plat_error_handler(err);
|
|
}
|
|
} else {
|
|
INFO("BL2: Skip loading image id %d\n", bl2_node_info->image_id);
|
|
}
|
|
|
|
/* Allow platform to handle image information. */
|
|
err = bl2_plat_handle_post_image_load(bl2_node_info->image_id);
|
|
if (err != 0) {
|
|
ERROR("BL2: Failure in post image load handling (%i)\n", err);
|
|
plat_error_handler(err);
|
|
}
|
|
|
|
/* Go to next image */
|
|
bl2_node_info = bl2_node_info->next_load_info;
|
|
}
|
|
|
|
/*
|
|
* Get information to pass to the next image.
|
|
*/
|
|
bl2_to_next_bl_params = plat_get_next_bl_params();
|
|
assert(bl2_to_next_bl_params != NULL);
|
|
assert(bl2_to_next_bl_params->head != NULL);
|
|
assert(bl2_to_next_bl_params->h.type == PARAM_BL_PARAMS);
|
|
assert(bl2_to_next_bl_params->h.version >= VERSION_2);
|
|
assert(bl2_to_next_bl_params->head->ep_info != NULL);
|
|
|
|
/* Populate arg0 for the next BL image if not already provided */
|
|
if (bl2_to_next_bl_params->head->ep_info->args.arg0 == (u_register_t)0)
|
|
bl2_to_next_bl_params->head->ep_info->args.arg0 =
|
|
(u_register_t)bl2_to_next_bl_params;
|
|
|
|
/* Flush the parameters to be passed to next image */
|
|
plat_flush_next_bl_params();
|
|
|
|
return bl2_to_next_bl_params->head->ep_info;
|
|
}
|