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Julius Werner's avatar
Factor out cross-BL API into export headers suitable for 3rd party code    
Julius Werner committed
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/*
 * Copyright (c) 2019, ARM Limited and Contributors. All rights reserved.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */

#ifndef ARM_TRUSTED_FIRMWARE_EXPORT_COMMON_BL_COMMON_EXP_H
#define ARM_TRUSTED_FIRMWARE_EXPORT_COMMON_BL_COMMON_EXP_H

/* EXPORT HEADER -- See include/export/README for details! -- EXPORT HEADER */

#include "ep_info_exp.h"
#include "tbbr/tbbr_img_def_exp.h"

/*
 * The following are used for image state attributes.
 * Image can only be in one of the following state.
 */
#define IMAGE_STATE_RESET		U(0)
#define IMAGE_STATE_COPIED		U(1)
#define IMAGE_STATE_COPYING		U(2)
#define IMAGE_STATE_AUTHENTICATED	U(3)
#define IMAGE_STATE_EXECUTED		U(4)
#define IMAGE_STATE_INTERRUPTED		U(5)

#define IMAGE_ATTRIB_SKIP_LOADING	U(0x02)
#define IMAGE_ATTRIB_PLAT_SETUP		U(0x04)

#define INVALID_IMAGE_ID		U(0xFFFFFFFF)

#ifndef __ASSEMBLER__

/*****************************************************************************
 * Image info binary provides information from the image loader that
 * can be used by the firmware to manage available trusted RAM.
 * More advanced firmware image formats can provide additional
 * information that enables optimization or greater flexibility in the
 * common firmware code
 *****************************************************************************/
typedef struct image_info {
	param_header_t h;
	uintptr_t image_base;   /* physical address of base of image */
	uint32_t image_size;    /* bytes read from image file */
	uint32_t image_max_size;
} image_info_t;

/* BL image node in the BL image execution sequence */
typedef struct bl_params_node {
	unsigned int image_id;
	image_info_t *image_info;
	entry_point_info_t *ep_info;
	struct bl_params_node *next_params_info;
} bl_params_node_t;

/*
 * BL image head node in the BL image execution sequence
 * It is also used to pass information to next BL image.
 */
typedef struct bl_params {
	param_header_t h;
	bl_params_node_t *head;
} bl_params_t;

/*****************************************************************************
 * The image descriptor struct definition.
 *****************************************************************************/
typedef struct image_desc {
	/* Contains unique image id for the image. */
	unsigned int image_id;
	/*
	 * This member contains Image state information.
	 * Refer IMAGE_STATE_XXX defined above.
	 */
	unsigned int state;
	uint32_t copied_size;	/* image size copied in blocks */
	image_info_t image_info;
	entry_point_info_t ep_info;
} image_desc_t;

/* BL image node in the BL image loading sequence */
typedef struct bl_load_info_node {
	unsigned int image_id;
	image_info_t *image_info;
	struct bl_load_info_node *next_load_info;
} bl_load_info_node_t;

/* BL image head node in the BL image loading sequence */
typedef struct bl_load_info {
	param_header_t h;
	bl_load_info_node_t *head;
} bl_load_info_t;

#endif /* __ASSEMBLER__ */

#endif /* ARM_TRUSTED_FIRMWARE_EXPORT_COMMON_BL_COMMON_EXP_H */