/* * Copyright (c) 2013-2018, ARM Limited and Contributors. All rights reserved. * * SPDX-License-Identifier: BSD-3-Clause */ #include <assert.h> #include <bl31/bl31.h> #include <common/bl_common.h> #include <context.h> #include <lib/el3_runtime/context_mgmt.h> #include <lib/el3_runtime/cpu_data.h> #include <plat/common/platform.h> /******************************************************************************* * This function returns a pointer to the most recent 'cpu_context' structure * for the calling CPU that was set as the context for the specified security * state. NULL is returned if no such structure has been specified. ******************************************************************************/ void *cm_get_context(uint32_t security_state) { assert(security_state <= NON_SECURE); return get_cpu_data(cpu_context[security_state]); } /******************************************************************************* * This function sets the pointer to the current 'cpu_context' structure for the * specified security state for the calling CPU ******************************************************************************/ void cm_set_context(void *context, uint32_t security_state) { assert(security_state <= NON_SECURE); set_cpu_data(cpu_context[security_state], context); } /******************************************************************************* * This function returns a pointer to the most recent 'cpu_context' structure * for the CPU identified by `cpu_idx` that was set as the context for the * specified security state. NULL is returned if no such structure has been * specified. ******************************************************************************/ void *cm_get_context_by_index(unsigned int cpu_idx, unsigned int security_state) { assert(sec_state_is_valid(security_state)); return get_cpu_data_by_index(cpu_idx, cpu_context[security_state]); } /******************************************************************************* * This function sets the pointer to the current 'cpu_context' structure for the * specified security state for the CPU identified by CPU index. ******************************************************************************/ void cm_set_context_by_index(unsigned int cpu_idx, void *context, unsigned int security_state) { assert(sec_state_is_valid(security_state)); set_cpu_data_by_index(cpu_idx, cpu_context[security_state], context); }