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https://github.com/ARM-software/arm-trusted-firmware.git
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05c69cf75e
This adds the ability to load the OP-TEE image via an SMC called from non-secure userspace rather than loading it during boot. This should only be utilized on platforms that can ensure security is maintained up until the point the SMC is invoked as it breaks the normal barrier between the secure and non-secure world. Signed-off-by: Jeffrey Kardatzke <jkardatzke@google.com> Change-Id: I21cfa9699617c493fa4190f01d1cbb714e7449cc
56 lines
1.2 KiB
C
56 lines
1.2 KiB
C
/*
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* Copyright (c) 2017-2023, ARM Limited and Contributors. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#ifndef OPTEE_UTILS_H
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#define OPTEE_UTILS_H
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#include <stdbool.h>
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#include <common/bl_common.h>
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bool optee_header_is_valid(uintptr_t header_base);
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int parse_optee_header(entry_point_info_t *header_ep,
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image_info_t *pager_image_info,
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image_info_t *paged_image_info);
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/*
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* load_addr_hi and load_addr_lo: image load address.
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* image_id: 0 - pager, 1 - paged
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* size: image size in bytes.
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*/
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typedef struct optee_image {
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uint32_t load_addr_hi;
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uint32_t load_addr_lo;
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uint32_t image_id;
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uint32_t size;
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} optee_image_t;
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#define OPTEE_PAGER_IMAGE_ID 0
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#define OPTEE_PAGED_IMAGE_ID 1
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#define OPTEE_MAX_NUM_IMAGES 2u
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#define TEE_MAGIC_NUM_OPTEE 0x4554504f
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/*
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* magic: header magic number.
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* version: OPTEE header version:
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* 1 - not supported
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* 2 - supported
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* arch: OPTEE os architecture type: 0 - AARCH32, 1 - AARCH64.
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* flags: unused currently.
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* nb_images: number of images.
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*/
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typedef struct optee_header {
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uint32_t magic;
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uint8_t version;
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uint8_t arch;
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uint16_t flags;
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uint32_t nb_images;
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optee_image_t optee_image_list[];
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} optee_header_t;
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#endif /* OPTEE_UTILS_H */
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