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https://github.com/ARM-software/arm-trusted-firmware.git
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42019bf4e9
This patch adds changes in BL1 & BL2 to use new version of image loading to load the BL images. Following are the changes in BL1: -Use new version of load_auth_image() to load BL2 -Modified `bl1_init_bl2_mem_layout()` to remove using `reserve_mem()` and to calculate `bl2_mem_layout`. `bl2_mem_layout` calculation now assumes that BL1 RW data is at the top of the bl1_mem_layout, which is more restrictive than the previous BL1 behaviour. Following are the changes in BL2: -The `bl2_main.c` is refactored and all the functions for loading BLxx images are now moved to `bl2_image_load.c` `bl2_main.c` now calls a top level `bl2_load_images()` to load all the images that are applicable in BL2. -Added new file `bl2_image_load_v2.c` that uses new version of image loading to load the BL images in BL2. All the above changes are conditionally compiled using the `LOAD_IMAGE_V2` flag. Change-Id: Ic6dcde5a484495bdc05526d9121c59fa50c1bf23
117 lines
4 KiB
C
117 lines
4 KiB
C
/*
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* Copyright (c) 2016, ARM Limited and Contributors. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* Neither the name of ARM nor the names of its contributors may be used
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* to endorse or promote products derived from this software without specific
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* prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <arch.h>
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#include <arch_helpers.h>
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#include <assert.h>
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#include <auth_mod.h>
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#include <bl_common.h>
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#include <debug.h>
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#include <desc_image_load.h>
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#include <platform.h>
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#include <platform_def.h>
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#include <stdint.h>
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/*******************************************************************************
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* This function loads SCP_BL2/BL3x images and returns the ep_info for
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* the next executable image.
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******************************************************************************/
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entry_point_info_t *bl2_load_images(void)
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{
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bl_params_t *bl2_to_next_bl_params;
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bl_load_info_t *bl2_load_info;
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const bl_load_info_node_t *bl2_node_info;
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int plat_setup_done = 0;
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int err;
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/*
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* Get information about the images to load.
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*/
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bl2_load_info = plat_get_bl_image_load_info();
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assert(bl2_load_info);
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assert(bl2_load_info->head);
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assert(bl2_load_info->h.type == PARAM_BL_LOAD_INFO);
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assert(bl2_load_info->h.version >= VERSION_2);
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bl2_node_info = bl2_load_info->head;
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while (bl2_node_info) {
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/*
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* Perform platform setup before loading the image,
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* if indicated in the image attributes AND if NOT
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* already done before.
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*/
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if (bl2_node_info->image_info->h.attr & IMAGE_ATTRIB_PLAT_SETUP) {
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if (plat_setup_done) {
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WARN("BL2: Platform setup already done!!\n");
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} else {
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INFO("BL2: Doing platform setup\n");
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bl2_platform_setup();
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plat_setup_done = 1;
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}
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}
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if (!(bl2_node_info->image_info->h.attr & IMAGE_ATTRIB_SKIP_LOADING)) {
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INFO("BL2: Loading image id %d\n", bl2_node_info->image_id);
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err = load_auth_image(bl2_node_info->image_id,
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bl2_node_info->image_info);
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if (err) {
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ERROR("BL2: Failed to load image (%i)\n", err);
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plat_error_handler(err);
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}
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} else {
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INFO("BL2: Skip loading image id %d\n", bl2_node_info->image_id);
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}
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/* Allow platform to handle image information. */
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err = bl2_plat_handle_post_image_load(bl2_node_info->image_id);
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if (err) {
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ERROR("BL2: Failure in post image load handling (%i)\n", err);
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plat_error_handler(err);
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}
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/* Go to next image */
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bl2_node_info = bl2_node_info->next_load_info;
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}
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/*
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* Get information to pass to the next image.
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*/
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bl2_to_next_bl_params = plat_get_next_bl_params();
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assert(bl2_to_next_bl_params);
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assert(bl2_to_next_bl_params->head);
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assert(bl2_to_next_bl_params->h.type == PARAM_BL_PARAMS);
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assert(bl2_to_next_bl_params->h.version >= VERSION_2);
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/* Flush the parameters to be passed to next image */
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plat_flush_next_bl_params();
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return bl2_to_next_bl_params->head->ep_info;
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}
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