| 1 | /*
|
|---|
| 2 | * Copyright (C) 2005 Ondrej Palkovsky
|
|---|
| 3 | * All rights reserved.
|
|---|
| 4 | *
|
|---|
| 5 | * Redistribution and use in source and binary forms, with or without
|
|---|
| 6 | * modification, are permitted provided that the following conditions
|
|---|
| 7 | * are met:
|
|---|
| 8 | *
|
|---|
| 9 | * - Redistributions of source code must retain the above copyright
|
|---|
| 10 | * notice, this list of conditions and the following disclaimer.
|
|---|
| 11 | * - Redistributions in binary form must reproduce the above copyright
|
|---|
| 12 | * notice, this list of conditions and the following disclaimer in the
|
|---|
| 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
|
|---|
| 15 | * derived from this software without specific prior written permission.
|
|---|
| 16 | *
|
|---|
| 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
|
|---|
| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|---|
| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|---|
| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|---|
| 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
|
|---|
| 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
|
|---|
| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|---|
| 27 | */
|
|---|
| 28 |
|
|---|
| 29 | #ifndef __amd64_CONTEXT_H__
|
|---|
| 30 | #define __amd64_CONTEXT_H__
|
|---|
| 31 |
|
|---|
| 32 | #ifndef __amd64_TYPES_H__
|
|---|
| 33 | # include <arch/types.h>
|
|---|
| 34 | #endif
|
|---|
| 35 |
|
|---|
| 36 |
|
|---|
| 37 | /* According to ABI the stack MUST be aligned on
|
|---|
| 38 | * 16-byte boundary. If it is not, the va_arg calling will
|
|---|
| 39 | * panic sooner or later
|
|---|
| 40 | */
|
|---|
| 41 | #define SP_DELTA 16
|
|---|
| 42 |
|
|---|
| 43 | /* We include only registers that must be preserved
|
|---|
| 44 | * during function call
|
|---|
| 45 | */
|
|---|
| 46 | struct context {
|
|---|
| 47 | __address sp;
|
|---|
| 48 | __address pc;
|
|---|
| 49 |
|
|---|
| 50 | __u64 rbx;
|
|---|
| 51 | __u64 rbp;
|
|---|
| 52 |
|
|---|
| 53 | __u64 r12;
|
|---|
| 54 | __u64 r13;
|
|---|
| 55 | __u64 r14;
|
|---|
| 56 | __u64 r15;
|
|---|
| 57 |
|
|---|
| 58 | ipl_t ipl;
|
|---|
| 59 | } __attribute__ ((packed));
|
|---|
| 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 |
|
|---|
| 82 | #endif
|
|---|
