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101 lines
2.1 KiB
101 lines
2.1 KiB
/*
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* Copyright (c) 2015-2018, 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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#include <assert.h>
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#include <errno.h>
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#include <platform_def.h>
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#include <bl1/tbbr/tbbr_img_desc.h>
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#include <common/bl_common.h>
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#include <common/debug.h>
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#include <lib/utils.h>
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#include <plat/arm/common/plat_arm.h>
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#include <plat/common/platform.h>
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/* Struct to keep track of usable memory */
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typedef struct bl1_mem_info {
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uintptr_t mem_base;
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unsigned int mem_size;
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} bl1_mem_info_t;
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static bl1_mem_info_t fwu_addr_map_secure[] = {
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{
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.mem_base = ARM_SHARED_RAM_BASE,
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.mem_size = ARM_SHARED_RAM_SIZE
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},
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{
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.mem_size = 0
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}
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};
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static bl1_mem_info_t fwu_addr_map_non_secure[] = {
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{
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.mem_base = ARM_NS_DRAM1_BASE,
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.mem_size = ARM_NS_DRAM1_SIZE
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},
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{
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.mem_base = PLAT_ARM_NVM_BASE,
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.mem_size = PLAT_ARM_NVM_SIZE
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},
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{
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.mem_size = 0
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}
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};
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int bl1_plat_mem_check(uintptr_t mem_base,
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unsigned int mem_size,
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unsigned int flags)
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{
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unsigned int index = 0;
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bl1_mem_info_t *mmap;
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assert(mem_base);
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assert(mem_size);
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/*
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* The caller of this function is responsible for checking upfront that
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* the end address doesn't overflow. We double-check this in debug
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* builds.
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*/
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assert(!check_uptr_overflow(mem_base, mem_size - 1));
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/*
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* Check the given image source and size.
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*/
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if (GET_SECURITY_STATE(flags) == SECURE)
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mmap = fwu_addr_map_secure;
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else
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mmap = fwu_addr_map_non_secure;
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while (mmap[index].mem_size) {
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if ((mem_base >= mmap[index].mem_base) &&
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((mem_base + mem_size)
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<= (mmap[index].mem_base +
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mmap[index].mem_size)))
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return 0;
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index++;
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}
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return -ENOMEM;
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}
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/*******************************************************************************
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* This function does linear search for image_id and returns image_desc.
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******************************************************************************/
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image_desc_t *bl1_plat_get_image_desc(unsigned int image_id)
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{
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unsigned int index = 0;
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while (bl1_tbbr_image_descs[index].image_id != INVALID_IMAGE_ID) {
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if (bl1_tbbr_image_descs[index].image_id == image_id)
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return &bl1_tbbr_image_descs[index];
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index++;
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}
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return NULL;
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}
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