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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 1949 | jermar | 1 | /* |
| 2071 | jermar | 2 | * Copyright (c) 2005 Ondrej Palkovsky |
| 1949 | jermar | 3 | * All rights reserved. |
| 4 | * |
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| 5 | * Redistribution and use in source and binary forms, with or without |
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| 6 | * modification, are permitted provided that the following conditions |
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| 7 | * are met: |
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| 8 | * |
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| 9 | * - Redistributions of source code must retain the above copyright |
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| 10 | * notice, this list of conditions and the following disclaimer. |
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| 11 | * - Redistributions in binary form must reproduce the above copyright |
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| 12 | * notice, this list of conditions and the following disclaimer in the |
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| 13 | * documentation and/or other materials provided with the distribution. |
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| 14 | * - The name of the author may not be used to endorse or promote products |
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| 15 | * derived from this software without specific prior written permission. |
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| 16 | * |
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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| 27 | */ |
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| 28 | |||
| 29 | #ifndef KERN_amd64_CONTEXT_OFFSET_H_ |
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| 30 | #define KERN_amd64_CONTEXT_OFFSET_H_ |
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| 31 | |||
| 457 | decky | 32 | #define OFFSET_SP 0x0 |
| 33 | #define OFFSET_PC 0x8 |
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| 34 | #define OFFSET_RBX 0x10 |
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| 35 | #define OFFSET_RBP 0x18 |
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| 36 | #define OFFSET_R12 0x20 |
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| 37 | #define OFFSET_R13 0x28 |
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| 38 | #define OFFSET_R14 0x30 |
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| 39 | #define OFFSET_R15 0x38 |
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| 1702 | cejka | 40 | |
| 2777 | cejka | 41 | #ifdef KERNEL |
| 42 | # define OFFSET_IPL 0x40 |
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| 43 | #else |
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| 44 | # define OFFSET_TLS 0x40 |
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| 45 | #endif |
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| 46 | |||
| 2774 | cejka | 47 | #ifdef __ASM__ |
| 48 | |||
| 49 | # ctx: address of the structure with saved context |
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| 50 | # pc: return address |
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| 51 | .macro CONTEXT_SAVE_ARCH_CORE ctx:req pc:req |
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| 2777 | cejka | 52 | movq \pc, OFFSET_PC(\ctx) |
| 53 | movq %rsp, OFFSET_SP(\ctx) |
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| 54 | |||
| 55 | movq %rbx, OFFSET_RBX(\ctx) |
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| 56 | movq %rbp, OFFSET_RBP(\ctx) |
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| 57 | movq %r12, OFFSET_R12(\ctx) |
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| 58 | movq %r13, OFFSET_R13(\ctx) |
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| 59 | movq %r14, OFFSET_R14(\ctx) |
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| 60 | movq %r15, OFFSET_R15(\ctx) |
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| 2774 | cejka | 61 | .endm |
| 62 | |||
| 63 | # ctx: address of the structure with saved context |
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| 64 | .macro CONTEXT_RESTORE_ARCH_CORE ctx:req pc:req |
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| 2777 | cejka | 65 | movq OFFSET_R15(\ctx), %r15 |
| 66 | movq OFFSET_R14(\ctx), %r14 |
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| 67 | movq OFFSET_R13(\ctx), %r13 |
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| 68 | movq OFFSET_R12(\ctx), %r12 |
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| 69 | movq OFFSET_RBP(\ctx), %rbp |
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| 70 | movq OFFSET_RBX(\ctx), %rbx |
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| 71 | |||
| 72 | movq OFFSET_SP(\ctx), %rsp # ctx->sp -> %rsp |
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| 73 | |||
| 74 | movq OFFSET_PC(\ctx), \pc |
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| 2774 | cejka | 75 | .endm |
| 76 | |||
| 1949 | jermar | 77 | #endif |
| 2774 | cejka | 78 | |
| 79 | #endif |