mirror of
https://github.com/ARM-software/arm-trusted-firmware.git
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d5f225d95d
Added a platform function to check passed region is within the Non-Secure region of DRAM. Signed-off-by: Manish V Badarkhe <Manish.Badarkhe@arm.com> Change-Id: Ie5808fa6a1b6e6bc99f4185fa8acc52af0d5f14d
36 lines
1 KiB
C
36 lines
1 KiB
C
/*
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* Copyright (c) 2022 Arm Limited. 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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*/
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#include <stdint.h>
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#include <plat/common/platform.h>
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#include <platform_def.h>
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/*******************************************************************************
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* Check passed region is within Non-Secure region of DRAM
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******************************************************************************/
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int plat_drtm_validate_ns_region(uintptr_t region_start,
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size_t region_size)
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{
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uintptr_t region_end = region_start + region_size - 1;
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if (region_start >= region_end) {
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return -1;
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} else if ((region_start >= ARM_NS_DRAM1_BASE) &&
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(region_start < (ARM_NS_DRAM1_BASE + ARM_NS_DRAM1_SIZE)) &&
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(region_end >= ARM_NS_DRAM1_BASE) &&
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(region_end < (ARM_NS_DRAM1_BASE + ARM_NS_DRAM1_SIZE))) {
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return 0;
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} else if ((region_start >= ARM_DRAM2_BASE) &&
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(region_start < (ARM_DRAM2_BASE + ARM_DRAM2_SIZE)) &&
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(region_end >= ARM_DRAM2_BASE) &&
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(region_end < (ARM_DRAM2_BASE + ARM_DRAM2_SIZE))) {
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return 0;
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}
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return -1;
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}
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