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https://github.com/ARM-software/arm-trusted-firmware.git
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4c700c1563
Align entire TF-A to use Arm in copyright header. Change-Id: Ief9992169efdab61d0da6bd8c5180de7a4bc2244 Signed-off-by: Govindraj Raja <govindraj.raja@arm.com>
41 lines
1,012 B
C
41 lines
1,012 B
C
/*
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* Copyright (c) 2017-2018, 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 <limits.h>
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#include <lib/utils.h>
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#include "psci_private.h"
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u_register_t psci_mem_protect(unsigned int enable)
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{
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int val;
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assert(psci_plat_pm_ops->read_mem_protect != NULL);
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assert(psci_plat_pm_ops->write_mem_protect != NULL);
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if (psci_plat_pm_ops->read_mem_protect(&val) < 0)
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return (u_register_t) PSCI_E_NOT_SUPPORTED;
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if (psci_plat_pm_ops->write_mem_protect(enable) < 0)
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return (u_register_t) PSCI_E_NOT_SUPPORTED;
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return (val != 0) ? 1U : 0U;
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}
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u_register_t psci_mem_chk_range(uintptr_t base, u_register_t length)
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{
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int ret;
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assert(psci_plat_pm_ops->mem_protect_chk != NULL);
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if ((length == 0U) || check_uptr_overflow(base, length - 1U))
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return (u_register_t) PSCI_E_DENIED;
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ret = psci_plat_pm_ops->mem_protect_chk(base, length);
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return (ret < 0) ?
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(u_register_t) PSCI_E_DENIED : (u_register_t) PSCI_E_SUCCESS;
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}
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