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| 1 | /* |
1 | /* |
| 2 | * Copyright (C) 2005 Ondrej Palkovsky |
2 | * Copyright (C) 2005 Ondrej Palkovsky |
| 3 | * All rights reserved. |
3 | * All rights reserved. |
| 4 | * |
4 | * |
| 5 | * Redistribution and use in source and binary forms, with or without |
5 | * Redistribution and use in source and binary forms, with or without |
| 6 | * modification, are permitted provided that the following conditions |
6 | * modification, are permitted provided that the following conditions |
| 7 | * are met: |
7 | * are met: |
| 8 | * |
8 | * |
| 9 | * - Redistributions of source code must retain the above copyright |
9 | * - Redistributions of source code must retain the above copyright |
| 10 | * notice, this list of conditions and the following disclaimer. |
10 | * notice, this list of conditions and the following disclaimer. |
| 11 | * - Redistributions in binary form must reproduce the above copyright |
11 | * - Redistributions in binary form must reproduce the above copyright |
| 12 | * notice, this list of conditions and the following disclaimer in the |
12 | * notice, this list of conditions and the following disclaimer in the |
| 13 | * documentation and/or other materials provided with the distribution. |
13 | * documentation and/or other materials provided with the distribution. |
| 14 | * - The name of the author may not be used to endorse or promote products |
14 | * - The name of the author may not be used to endorse or promote products |
| 15 | * derived from this software without specific prior written permission. |
15 | * derived from this software without specific prior written permission. |
| 16 | * |
16 | * |
| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | */ |
27 | */ |
| 28 | 28 | ||
| 29 | #ifndef __amd64_CONTEXT_H__ |
29 | #ifndef __amd64_CONTEXT_H__ |
| 30 | #define __amd64_CONTEXT_H__ |
30 | #define __amd64_CONTEXT_H__ |
| 31 | 31 | ||
| 32 | #ifndef __amd64_TYPES_H__ |
32 | #ifndef __amd64_TYPES_H__ |
| 33 | # include <arch/types.h> |
33 | # include <arch/types.h> |
| 34 | #endif |
34 | #endif |
| 35 | 35 | ||
| 36 | 36 | ||
| 37 | /* According to ABI the stack MUST be aligned on |
37 | /* According to ABI the stack MUST be aligned on |
| 38 | * 16-byte boundary. If it is not, the va_arg calling will |
38 | * 16-byte boundary. If it is not, the va_arg calling will |
| 39 | * panic sooner or later |
39 | * panic sooner or later |
| 40 | */ |
40 | */ |
| 41 | #define SP_DELTA 16 |
41 | #define SP_DELTA 16 |
| 42 | 42 | ||
| 43 | /* We include only registers that must be preserved |
43 | /* We include only registers that must be preserved |
| 44 | * during function call |
44 | * during function call |
| 45 | */ |
45 | */ |
| 46 | struct context { |
46 | struct context { |
| 47 | __address sp; |
47 | __address sp; |
| 48 | __address pc; |
48 | __address pc; |
| 49 | 49 | ||
| 50 | __u64 rbx; |
50 | __u64 rbx; |
| 51 | __u64 rbp; |
51 | __u64 rbp; |
| 52 | 52 | ||
| 53 | __u64 r12; |
53 | __u64 r12; |
| 54 | __u64 r13; |
54 | __u64 r13; |
| 55 | __u64 r14; |
55 | __u64 r14; |
| 56 | __u64 r15; |
56 | __u64 r15; |
| 57 | 57 | ||
| 58 | ipl_t ipl; |
58 | ipl_t ipl; |
| 59 | } __attribute__ ((packed)); |
59 | } __attribute__ ((packed)); |
| 60 | 60 | ||
| - | 61 | /** This is passed to interrupt handlers */ |
|
| - | 62 | struct interrupt_context { |
|
| - | 63 | __u64 rax; |
|
| - | 64 | __u64 rbx; |
|
| - | 65 | __u64 rcx; |
|
| - | 66 | __u64 rdx; |
|
| - | 67 | __u64 rsi; |
|
| - | 68 | __u64 rdi; |
|
| - | 69 | __u64 r8; |
|
| - | 70 | __u64 r9; |
|
| - | 71 | __u64 r10; |
|
| - | 72 | __u64 r11; |
|
| - | 73 | __u64 r12; |
|
| - | 74 | __u64 r13; |
|
| - | 75 | __u64 r14; |
|
| - | 76 | __u64 r15; |
|
| - | 77 | /* These 2 items MUST be last parts of the structure */ |
|
| - | 78 | __u64 rbp; |
|
| - | 79 | __u64 stack[0]; /* Additional data on stack */ |
|
| - | 80 | } __attribute__ ((packed)); |
|
| - | 81 | ||
| 61 | #endif |
82 | #endif |
| 62 | 83 | ||