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63 lines
2.4 KiB
63 lines
2.4 KiB
4 months ago
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/*
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* Copyright (c) 2013-2020, 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 <bl31/bl31.h>
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#include <common/bl_common.h>
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#include <context.h>
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#include <lib/el3_runtime/context_mgmt.h>
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#include <lib/el3_runtime/cpu_data.h>
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/*******************************************************************************
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* This function returns a pointer to the most recent 'cpu_context' structure
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* for the calling CPU that was set as the context for the specified security
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* state. NULL is returned if no such structure has been specified.
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******************************************************************************/
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void *cm_get_context(uint32_t security_state)
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{
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assert(security_state <= NON_SECURE);
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return get_cpu_data(cpu_context[security_state]);
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}
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/*******************************************************************************
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* This function sets the pointer to the current 'cpu_context' structure for the
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* specified security state for the calling CPU
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******************************************************************************/
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void cm_set_context(void *context, uint32_t security_state)
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{
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assert(security_state <= NON_SECURE);
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set_cpu_data(cpu_context[security_state], context);
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}
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/*******************************************************************************
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* This function returns a pointer to the most recent 'cpu_context' structure
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* for the CPU identified by `cpu_idx` that was set as the context for the
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* specified security state. NULL is returned if no such structure has been
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* specified.
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******************************************************************************/
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void *cm_get_context_by_index(unsigned int cpu_idx,
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unsigned int security_state)
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{
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assert(sec_state_is_valid(security_state));
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return get_cpu_data_by_index(cpu_idx, cpu_context[security_state]);
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}
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/*******************************************************************************
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* This function sets the pointer to the current 'cpu_context' structure for the
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* specified security state for the CPU identified by CPU index.
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******************************************************************************/
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void cm_set_context_by_index(unsigned int cpu_idx, void *context,
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unsigned int security_state)
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{
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assert(sec_state_is_valid(security_state));
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set_cpu_data_by_index(cpu_idx, cpu_context[security_state], context);
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}
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