1 /* 2 * Copyright (c) 2014, STMicroelectronics International N.V. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright notice, 9 * this list of conditions and the following disclaimer. 10 * 11 * 2. Redistributions in binary form must reproduce the above copyright notice, 12 * this list of conditions and the following disclaimer in the documentation 13 * and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 19 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 20 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 21 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 24 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 25 * POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28 #ifndef TEE_TA_MANAGER_H 29 #define TEE_TA_MANAGER_H 30 31 #include <tee_api_types.h> 32 #include <utee_types.h> 33 #include <kernel/tee_common.h> 34 #include <kernel/tee_ta_manager_unpg.h> 35 36 /* Magic TEE identity pointer: set when teecore requests a TA close */ 37 #define KERN_IDENTITY ((TEE_Identity *)-1) 38 /* Operation is initiated by a client (non-secure) app */ 39 #define NSAPP_IDENTITY (NULL) 40 41 /*----------------------------------------------------------------------------- 42 * Initializes virtual memory management by reserving virtual memory for 43 * memory areas not available TA virtual memroy allocation. 44 * 45 * Spare physical pages are passed in the memory range between ta_start and 46 * ta_spare_end. Spare physical pages are supposed to be mapped with "no 47 * access" attribute. 48 * 49 * All addresses will be rounded up the the next page. 50 * 51 * Parameters: 52 * ro_start - start of read only section for paging, 53 * ro_end - end of read only section for paging, 54 * ta_start - start of section used for TA virtual memory 55 * ta_spare_end - end of spare pages used for paging 56 * 57 * Returns: 58 * void 59 *---------------------------------------------------------------------------*/ 60 void tee_ta_vmem_init(tee_vaddr_t ro_start, tee_vaddr_t ro_end, 61 tee_vaddr_t ta_start, tee_vaddr_t ta_spare_end); 62 63 TEE_Result tee_ta_open_session(TEE_ErrorOrigin *err, 64 struct tee_ta_session **sess, 65 struct tee_ta_session_head *open_sessions, 66 const TEE_UUID *uuid, 67 const TEE_Identity *clnt_id, 68 uint32_t cancel_req_to, 69 struct tee_ta_param *param); 70 71 TEE_Result tee_ta_invoke_command(TEE_ErrorOrigin *err, 72 struct tee_ta_session *sess, 73 const TEE_Identity *clnt_id, 74 uint32_t cancel_req_to, uint32_t cmd, 75 struct tee_ta_param *param); 76 77 TEE_Result tee_ta_cancel_command(TEE_ErrorOrigin *err, 78 struct tee_ta_session *sess, 79 const TEE_Identity *clnt_id); 80 81 /*----------------------------------------------------------------------------- 82 * Function called to close a TA. 83 * Parameters: 84 * id - The session id (in) 85 * Returns: 86 * TEE_Result 87 *---------------------------------------------------------------------------*/ 88 TEE_Result tee_ta_close_session(struct tee_ta_session *sess, 89 struct tee_ta_session_head *open_sessions, 90 const TEE_Identity *clnt_id); 91 92 TEE_Result tee_ta_get_current_session(struct tee_ta_session **sess); 93 94 void tee_ta_set_current_session(struct tee_ta_session *sess); 95 96 TEE_Result tee_ta_get_client_id(TEE_Identity *id); 97 98 /* Returns OK is sess is a valid session pointer or static TA */ 99 TEE_Result tee_ta_verify_session_pointer(struct tee_ta_session *sess, 100 struct tee_ta_session_head 101 *open_sessions); 102 103 int tee_ta_set_trace_level(int level); 104 void tee_ta_dump_current(void); 105 void tee_ta_dump_all(void); 106 107 #ifdef CFG_CACHE_API 108 TEE_Result tee_uta_cache_operation(struct tee_ta_session *s, 109 enum utee_cache_operation op, 110 void *va, size_t len); 111 #endif 112 113 #endif 114