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git01.mediatek.com / filogic / atf / 65327520d7202cf8dfdbb6ff3bae1dd205fe43f4 / . / services / spd / opteed / teesmc_opteed.h
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Jens Wiklanderc2888862014-08-04 15:39:58 +0200[diff] [blame]1/*
2 * Copyright (c) 2014, ARM Limited and Contributors. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are met:
6 *
7 * Redistributions of source code must retain the above copyright notice, this
8 * list of conditions and the following disclaimer.
9 *
10 * Redistributions in binary form must reproduce the above copyright notice,
11 * this list of conditions and the following disclaimer in the documentation
12 * and/or other materials provided with the distribution.
13 *
14 * Neither the name of ARM nor the names of its contributors may be used
15 * to endorse or promote products derived from this software without specific
16 * prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
22 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
28 * POSSIBILITY OF SUCH DAMAGE.
29 */
30
31/* Copyright (c) 2014, Linaro Limited. All rights reserved. */
32
33#ifndef TEESMC_OPTEED_H
34#define TEESMC_OPTEED_H
35
36/*
37 * This file specify SMC function IDs used when returning from TEE to the
38 * secure monitor.
39 *
40 * All SMC Function IDs indicates SMC32 Calling Convention but will carry
41 * full 64 bit values in the argument registers if invoked from Aarch64
42 * mode. This violates the SMC Calling Convention, but since this
43 * convention only coveres API towards Normwal World it's something that
44 * only concerns the OP-TEE Dispatcher in ARM Trusted Firmware and OP-TEE
45 * OS at Secure EL1.
46 */
47
48/*
49 * Issued when returning from initial entry.
50 *
51 * Register usage:
52 * r0/x0 SMC Function ID, TEESMC_OPTEED_RETURN_ENTRY_DONE
53 * r1/x1 Pointer to entry vector
54 */
55#define TEESMC_OPTEED_FUNCID_RETURN_ENTRY_DONE 0
56#define TEESMC_OPTEED_RETURN_ENTRY_DONE \
57 TEESMC_OPTEED_RV(TEESMC_OPTEED_FUNCID_RETURN_ENTRY_DONE)
58
59
60
61/*
62 * Issued when returning from "cpu_on" vector
63 *
64 * Register usage:
65 * r0/x0 SMC Function ID, TEESMC_OPTEED_RETURN_ON_DONE
66 * r1/x1 0 on success and anything else to indicate error condition
67 */
68#define TEESMC_OPTEED_FUNCID_RETURN_ON_DONE 1
69#define TEESMC_OPTEED_RETURN_ON_DONE \
70 TEESMC_OPTEED_RV(TEESMC_OPTEED_FUNCID_RETURN_ON_DONE)
71
72/*
73 * Issued when returning from "cpu_off" vector
74 *
75 * Register usage:
76 * r0/x0 SMC Function ID, TEESMC_OPTEED_RETURN_OFF_DONE
77 * r1/x1 0 on success and anything else to indicate error condition
78 */
79#define TEESMC_OPTEED_FUNCID_RETURN_OFF_DONE 2
80#define TEESMC_OPTEED_RETURN_OFF_DONE \
81 TEESMC_OPTEED_RV(TEESMC_OPTEED_FUNCID_RETURN_OFF_DONE)
82
83/*
84 * Issued when returning from "cpu_suspend" vector
85 *
86 * Register usage:
87 * r0/x0 SMC Function ID, TEESMC_OPTEED_RETURN_SUSPEND_DONE
88 * r1/x1 0 on success and anything else to indicate error condition
89 */
90#define TEESMC_OPTEED_FUNCID_RETURN_SUSPEND_DONE 3
91#define TEESMC_OPTEED_RETURN_SUSPEND_DONE \
92 TEESMC_OPTEED_RV(TEESMC_OPTEED_FUNCID_RETURN_SUSPEND_DONE)
93
94/*
95 * Issued when returning from "cpu_resume" vector
96 *
97 * Register usage:
98 * r0/x0 SMC Function ID, TEESMC_OPTEED_RETURN_RESUME_DONE
99 * r1/x1 0 on success and anything else to indicate error condition
100 */
101#define TEESMC_OPTEED_FUNCID_RETURN_RESUME_DONE 4
102#define TEESMC_OPTEED_RETURN_RESUME_DONE \
103 TEESMC_OPTEED_RV(TEESMC_OPTEED_FUNCID_RETURN_RESUME_DONE)
104
105/*
106 * Issued when returning from "std_smc" or "fast_smc" vector
107 *
108 * Register usage:
109 * r0/x0 SMC Function ID, TEESMC_OPTEED_RETURN_CALL_DONE
110 * r1-4/x1-4 Return value 0-3 which will passed to normal world in
111 * r0-3/x0-3
112 */
113#define TEESMC_OPTEED_FUNCID_RETURN_CALL_DONE 5
114#define TEESMC_OPTEED_RETURN_CALL_DONE \
115 TEESMC_OPTEED_RV(TEESMC_OPTEED_FUNCID_RETURN_CALL_DONE)
116
117/*
118 * Issued when returning from "fiq" vector
119 *
120 * Register usage:
121 * r0/x0 SMC Function ID, TEESMC_OPTEED_RETURN_FIQ_DONE
122 */
123#define TEESMC_OPTEED_FUNCID_RETURN_FIQ_DONE 6
124#define TEESMC_OPTEED_RETURN_FIQ_DONE \
125 TEESMC_OPTEED_RV(TEESMC_OPTEED_FUNCID_RETURN_FIQ_DONE)
126
127/*
128 * Issued when returning from "system_off" vector
129 *
130 * Register usage:
131 * r0/x0 SMC Function ID, TEESMC_OPTEED_RETURN_SYSTEM_OFF_DONE
132 */
133#define TEESMC_OPTEED_FUNCID_RETURN_SYSTEM_OFF_DONE 7
134#define TEESMC_OPTEED_RETURN_SYSTEM_OFF_DONE \
135 TEESMC_OPTEED_RV(TEESMC_OPTEED_FUNCID_RETURN_SYSTEM_OFF_DONE)
136
137/*
138 * Issued when returning from "system_reset" vector
139 *
140 * Register usage:
141 * r0/x0 SMC Function ID, TEESMC_OPTEED_RETURN_SYSTEM_RESET_DONE
142 */
143#define TEESMC_OPTEED_FUNCID_RETURN_SYSTEM_RESET_DONE 8
144#define TEESMC_OPTEED_RETURN_SYSTEM_RESET_DONE \
145 TEESMC_OPTEED_RV(TEESMC_OPTEED_FUNCID_RETURN_SYSTEM_RESET_DONE)
146
147#endif /*TEESMC_OPTEED_H*/