1 /* 2 * Copyright (c) 2022-2024, Arm Limited. All rights reserved. 3 * 4 * SPDX-License-Identifier: BSD-3-Clause 5 * 6 */ 7 #include <assert.h> 8 9 #include "rse_comms_protocol_common.h" 10 #include "rse_comms_protocol_pointer_access.h" 11 12 psa_status_t rse_protocol_pointer_access_serialize_msg(psa_handle_t handle, 13 int16_t type, 14 const psa_invec *in_vec, 15 uint8_t in_len, 16 const psa_outvec *out_vec, 17 uint8_t out_len, 18 struct rse_pointer_access_msg_t *msg, 19 size_t *msg_len) 20 { 21 unsigned int i; 22 23 assert(msg != NULL); 24 assert(msg_len != NULL); 25 assert((in_len == 0u) || (in_vec != NULL)); 26 assert((out_len == 0u) || (out_vec != NULL)); 27 28 msg->ctrl_param = PARAM_PACK(type, in_len, out_len); 29 msg->handle = handle; 30 31 /* Fill msg iovec lengths */ 32 for (i = 0U; i < in_len; ++i) { 33 msg->io_sizes[i] = in_vec[i].len; 34 msg->host_ptrs[i] = (uint64_t)in_vec[i].base; 35 } 36 for (i = 0U; i < out_len; ++i) { 37 msg->io_sizes[in_len + i] = out_vec[i].len; 38 msg->host_ptrs[in_len + i] = (uint64_t)out_vec[i].base; 39 } 40 41 *msg_len = sizeof(*msg); 42 43 return PSA_SUCCESS; 44 } 45 46 psa_status_t rse_protocol_pointer_access_deserialize_reply(psa_outvec *out_vec, 47 uint8_t out_len, 48 psa_status_t *return_val, 49 const struct rse_pointer_access_reply_t *reply, 50 size_t reply_size) 51 { 52 unsigned int i; 53 54 assert(reply != NULL); 55 assert(return_val != NULL); 56 57 for (i = 0U; i < out_len; ++i) { 58 out_vec[i].len = reply->out_sizes[i]; 59 } 60 61 *return_val = reply->return_val; 62 63 return PSA_SUCCESS; 64 } 65