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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 KERN_amd64_CONTEXT_OFFSET_H_ |
29 | #ifndef KERN_amd64_CONTEXT_OFFSET_H_ |
30 | #define KERN_amd64_CONTEXT_OFFSET_H_ |
30 | #define KERN_amd64_CONTEXT_OFFSET_H_ |
31 | 31 | ||
32 | #define OFFSET_SP 0x0 |
32 | #define OFFSET_SP 0x0 |
33 | #define OFFSET_PC 0x8 |
33 | #define OFFSET_PC 0x8 |
34 | #define OFFSET_RBX 0x10 |
34 | #define OFFSET_RBX 0x10 |
35 | #define OFFSET_RBP 0x18 |
35 | #define OFFSET_RBP 0x18 |
36 | #define OFFSET_R12 0x20 |
36 | #define OFFSET_R12 0x20 |
37 | #define OFFSET_R13 0x28 |
37 | #define OFFSET_R13 0x28 |
38 | #define OFFSET_R14 0x30 |
38 | #define OFFSET_R14 0x30 |
39 | #define OFFSET_R15 0x38 |
39 | #define OFFSET_R15 0x38 |
40 | 40 | ||
41 | #ifdef KERNEL |
41 | #ifdef KERNEL |
42 | # define OFFSET_IPL 0x40 |
42 | # define OFFSET_IPL 0x40 |
43 | #else |
43 | #else |
44 | # define OFFSET_TLS 0x40 |
44 | # define OFFSET_TLS 0x40 |
45 | #endif |
45 | #endif |
46 | 46 | ||
47 | #ifdef __ASM__ |
47 | #ifdef __ASM__ |
48 | 48 | ||
49 | # ctx: address of the structure with saved context |
49 | # ctx: address of the structure with saved context |
50 | # pc: return address |
50 | # pc: return address |
51 | .macro CONTEXT_SAVE_ARCH_CORE ctx:req pc:req |
51 | .macro CONTEXT_SAVE_ARCH_CORE ctx:req pc:req |
52 | movq \pc, OFFSET_PC(\ctx) |
52 | movq \pc, OFFSET_PC(\ctx) |
53 | movq %rsp, OFFSET_SP(\ctx) |
53 | movq %rsp, OFFSET_SP(\ctx) |
54 | 54 | ||
55 | movq %rbx, OFFSET_RBX(\ctx) |
55 | movq %rbx, OFFSET_RBX(\ctx) |
56 | movq %rbp, OFFSET_RBP(\ctx) |
56 | movq %rbp, OFFSET_RBP(\ctx) |
57 | movq %r12, OFFSET_R12(\ctx) |
57 | movq %r12, OFFSET_R12(\ctx) |
58 | movq %r13, OFFSET_R13(\ctx) |
58 | movq %r13, OFFSET_R13(\ctx) |
59 | movq %r14, OFFSET_R14(\ctx) |
59 | movq %r14, OFFSET_R14(\ctx) |
60 | movq %r15, OFFSET_R15(\ctx) |
60 | movq %r15, OFFSET_R15(\ctx) |
61 | .endm |
61 | .endm |
62 | 62 | ||
63 | # ctx: address of the structure with saved context |
63 | # ctx: address of the structure with saved context |
64 | .macro CONTEXT_RESTORE_ARCH_CORE ctx:req pc:req |
64 | .macro CONTEXT_RESTORE_ARCH_CORE ctx:req pc:req |
65 | movq OFFSET_R15(\ctx), %r15 |
65 | movq OFFSET_R15(\ctx), %r15 |
66 | movq OFFSET_R14(\ctx), %r14 |
66 | movq OFFSET_R14(\ctx), %r14 |
67 | movq OFFSET_R13(\ctx), %r13 |
67 | movq OFFSET_R13(\ctx), %r13 |
68 | movq OFFSET_R12(\ctx), %r12 |
68 | movq OFFSET_R12(\ctx), %r12 |
69 | movq OFFSET_RBP(\ctx), %rbp |
69 | movq OFFSET_RBP(\ctx), %rbp |
70 | movq OFFSET_RBX(\ctx), %rbx |
70 | movq OFFSET_RBX(\ctx), %rbx |
71 | 71 | ||
72 | movq OFFSET_SP(\ctx), %rsp # ctx->sp -> %rsp |
72 | movq OFFSET_SP(\ctx), %rsp # ctx->sp -> %rsp |
73 | 73 | ||
74 | movq OFFSET_PC(\ctx), \pc |
74 | movq OFFSET_PC(\ctx), \pc |
75 | .endm |
75 | .endm |
76 | 76 | ||
77 | #endif |
77 | #endif |
78 | 78 | ||
79 | #endif |
79 | #endif |
80 | 80 |