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1 /*
2  * Copyright (c) 2014 Travis Geiselbrecht
3  *
4  * Permission is hereby granted, free of charge, to any person obtaining
5  * a copy of this software and associated documentation files
6  * (the "Software"), to deal in the Software without restriction,
7  * including without limitation the rights to use, copy, modify, merge,
8  * publish, distribute, sublicense, and/or sell copies of the Software,
9  * and to permit persons to whom the Software is furnished to do so,
10  * subject to the following conditions:
11  *
12  * The above copyright notice and this permission notice shall be
13  * included in all copies or substantial portions of the Software.
14  *
15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
18  * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
19  * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
20  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
21  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
22  */
23 #pragma once
24 
25 #include <sys/types.h>
26 
27 struct fpstate {
28     uint64_t    regs[64];
29     uint32_t    fpcr;
30     uint32_t    fpsr;
31     uint        current_cpu;
32 };
33 
34 #if KERNEL_PAC_ENABLED
35 struct packeys {
36     /* Trusty only uses the instruction A key at present */
37     uint64_t apia[2]; /* APIAKeyHi_EL1:APIAKeyLo_EL1 */
38 };
39 #endif
40 
41 struct arch_thread {
42     vaddr_t sp;
43     struct fpstate fpstate;
44 #if KERNEL_PAC_ENABLED
45     struct packeys packeys;
46 #endif
47 };
48 
49