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/*
* Copyright (c) 2015-2021, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#include <assert.h>
#include <errno.h>
#include <platform_def.h>
#include <bl1/tbbr/tbbr_img_desc.h>
#include <common/bl_common.h>
#include <common/debug.h>
#include <lib/utils.h>
#include <plat/arm/common/plat_arm.h>
#include <plat/common/platform.h>
#pragma weak bl1_plat_get_image_desc
/* Struct to keep track of usable memory */
typedef struct bl1_mem_info {
uintptr_t mem_base;
unsigned int mem_size;
} bl1_mem_info_t;
static bl1_mem_info_t fwu_addr_map_secure[] = {
{
.mem_base = ARM_SHARED_RAM_BASE,
.mem_size = ARM_SHARED_RAM_SIZE
},
{
.mem_size = 0
}
};
static bl1_mem_info_t fwu_addr_map_non_secure[] = {
{
.mem_base = ARM_NS_DRAM1_BASE,
.mem_size = ARM_NS_DRAM1_SIZE
},
{
.mem_base = PLAT_ARM_NVM_BASE,
.mem_size = PLAT_ARM_NVM_SIZE
},
{
.mem_size = 0
}
};
int bl1_plat_mem_check(uintptr_t mem_base,
unsigned int mem_size,
unsigned int flags)
{
unsigned int index = 0;
bl1_mem_info_t *mmap;
assert(mem_base);
assert(mem_size);
/*
* The caller of this function is responsible for checking upfront that
* the end address doesn't overflow. We double-check this in debug
* builds.
*/
assert(!check_uptr_overflow(mem_base, mem_size - 1));
/*
* Check the given image source and size.
*/
if (GET_SECURITY_STATE(flags) == SECURE)
mmap = fwu_addr_map_secure;
else
mmap = fwu_addr_map_non_secure;
while (mmap[index].mem_size) {
if ((mem_base >= mmap[index].mem_base) &&
((mem_base + mem_size)
<= (mmap[index].mem_base +
mmap[index].mem_size)))
return 0;
index++;
}
return -ENOMEM;
}
/*******************************************************************************
* This function does linear search for image_id and returns image_desc.
******************************************************************************/
image_desc_t *bl1_plat_get_image_desc(unsigned int image_id)
{
unsigned int index = 0;
while (bl1_tbbr_image_descs[index].image_id != INVALID_IMAGE_ID) {
if (bl1_tbbr_image_descs[index].image_id == image_id)
return &bl1_tbbr_image_descs[index];
index++;
}
return NULL;
}
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