1 /* 2 * Copyright (c) 2021-2023, Arm Limited. All rights reserved. 3 * 4 * SPDX-License-Identifier: BSD-3-Clause 5 * 6 */ 7 8 #ifndef __BACKEND_H__ 9 #define __BACKEND_H__ 10 11 #include <stdint.h> 12 #include "spm.h" 13 #include "tfm_arch.h" 14 #include "load/spm_load_api.h" 15 #include "psa/error.h" 16 17 #if CONFIG_TFM_SPM_BACKEND_IPC == 1 18 #include "backend_ipc.h" 19 #elif CONFIG_TFM_SPM_BACKEND_SFN == 1 20 #include "backend_sfn.h" 21 #else 22 #error "No backend selected, check configurations." 23 #endif 24 25 /* 26 * Runtime model-specific component initialization routine. This 27 * is an `assuredly` function, would panic if any error occurred. 28 */ 29 void backend_init_comp_assuredly(struct partition_t *p_pt, 30 uint32_t service_setting); 31 32 /* 33 * Runtime model-specific kick-off method for the whole system. 34 * Returns a hardware-specific control value, which is transparent 35 * to SPM common logic. 36 */ 37 uint32_t backend_system_run(void); 38 39 /* Runtime model-specific message handling mechanism. */ 40 psa_status_t backend_messaging(struct connection_t *p_connection); 41 42 /* 43 * Runtime model-specific message replying. 44 * Return the connection handle or the acked status code. 45 */ 46 psa_status_t backend_replying(struct connection_t *handle, int32_t status); 47 48 /** 49 * \brief Set the wait signal pattern in current partition. 50 */ 51 psa_signal_t backend_wait_signals(struct partition_t *p_pt, psa_signal_t signals); 52 53 /** 54 * \brief Set the asserted signal pattern in current partition. 55 */ 56 psa_status_t backend_assert_signal(struct partition_t *p_pt, psa_signal_t signal); 57 58 /* The component list, and a MACRO indicate this is not a common global. */ 59 extern struct partition_head_t partition_listhead; 60 #define PARTITION_LIST_ADDR (&partition_listhead) 61 62 /* TODO: Put this into NS Agent related service when available. */ 63 extern struct context_ctrl_t *p_spm_thread_context; 64 #define SPM_THREAD_CONTEXT p_spm_thread_context 65 66 #endif /* __BACKEND_H__ */ 67
