109 lines
3.1 KiB
C
109 lines
3.1 KiB
C
|
/*
|
||
|
|
* Copyright (c) 2016-2018, 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);
|
||
|
|
assert(bl2_load_info->head);
|
||
|
|
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) {
|
||
|
|
/*
|
||
|
|
* 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) {
|
||
|
|
if (plat_setup_done) {
|
||
|
|
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) {
|
||
|
|
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)) {
|
||
|
|
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) {
|
||
|
|
ERROR("BL2: Failed to load image (%i)\n", err);
|
||
|
|
plat_error_handler(err);
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Allow platform to handle image information. */
|
||
|
|
err = bl2_plat_handle_post_image_load(bl2_node_info->image_id);
|
||
|
|
if (err) {
|
||
|
|
ERROR("BL2: Failure in post image load handling (%i)\n", err);
|
||
|
|
plat_error_handler(err);
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
INFO("BL2: Skip loading image id %d\n", bl2_node_info->image_id);
|
||
|
|
}
|
||
|
|
|
||
|
|
/* 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);
|
||
|
|
assert(bl2_to_next_bl_params->head);
|
||
|
|
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);
|
||
|
|
|
||
|
|
/* 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;
|
||
|
|
}
|