diff options
Diffstat (limited to 'bl2/bl2_image_load_v2.c')
| -rw-r--r-- | bl2/bl2_image_load_v2.c | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/bl2/bl2_image_load_v2.c b/bl2/bl2_image_load_v2.c new file mode 100644 index 00000000..4fab6556 --- /dev/null +++ b/bl2/bl2_image_load_v2.c @@ -0,0 +1,117 @@ +/* + * Copyright (c) 2016, ARM Limited and Contributors. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * + * Neither the name of ARM nor the names of its contributors may be used + * to endorse or promote products derived from this software without specific + * prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#include <arch.h> +#include <arch_helpers.h> +#include <assert.h> +#include <auth_mod.h> +#include <bl_common.h> +#include <debug.h> +#include <desc_image_load.h> +#include <platform.h> +#include <platform_def.h> +#include <stdint.h> + + +/******************************************************************************* + * This function loads SCP_BL2/BL3x images and returns the ep_info for + * the next executable image. + ******************************************************************************/ +entry_point_info_t *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; + } + } + + 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); + } + } 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) { + 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); + 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); + + /* Flush the parameters to be passed to next image */ + plat_flush_next_bl_params(); + + return bl2_to_next_bl_params->head->ep_info; +} |