1/* ----------------------------------------------------------------------- *
2 *
3 *   Copyright 2007-2008 H. Peter Anvin - All Rights Reserved
4 *   Copyright 2009 Intel Corporation; author: H. Peter Anvin
5 *
6 *   Permission is hereby granted, free of charge, to any person
7 *   obtaining a copy of this software and associated documentation
8 *   files (the "Software"), to deal in the Software without
9 *   restriction, including without limitation the rights to use,
10 *   copy, modify, merge, publish, distribute, sublicense, and/or
11 *   sell copies of the Software, and to permit persons to whom
12 *   the Software is furnished to do so, subject to the following
13 *   conditions:
14 *
15 *   The above copyright notice and this permission notice shall
16 *   be included in all copies or substantial portions of the Software.
17 *
18 *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
19 *   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
20 *   OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
21 *   NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
22 *   HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
23 *   WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
24 *   FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
25 *   OTHER DEALINGS IN THE SOFTWARE.
26 *
27 * ----------------------------------------------------------------------- */
28
29/*
30 * syslinux/bootrm.h
31 *
32 * Data structures for shuffle and boot to protected mode
33 */
34
35#ifndef _SYSLINUX_BOOTRM_H
36#define _SYSLINUX_BOOTRM_H
37
38#include <stdint.h>
39#include <stdbool.h>
40#include <com32.h>
41#include <syslinux/movebits.h>
42
43/* This register set is used by the shuffle and boot interface.  It is
44   a completely different structure from what the __intcall() and
45   __farcall() interfaces use! */
46struct syslinux_rm_regs {
47    uint16_t es;		/* Offset  0 */
48    uint16_t _unused_cs;	/* Offset  2 */
49    uint16_t ss;		/* Offset  4 */
50    uint16_t ds;		/* Offset  6 */
51    uint16_t fs;		/* Offset  8 */
52    uint16_t gs;		/* Offset 10 */
53
54    reg32_t eax;		/* Offset 12 */
55    reg32_t ecx;		/* Offset 16 */
56    reg32_t edx;		/* Offset 20 */
57    reg32_t ebx;		/* Offset 24 */
58    reg32_t esp;		/* Offset 28 */
59    reg32_t ebp;		/* Offset 32 */
60    reg32_t esi;		/* Offset 36 */
61    reg32_t edi;		/* Offset 40 */
62
63    uint16_t ip;		/* Offset 44 */
64    uint16_t cs;		/* Offset 46 */
65
66    bool sti;			/* Offset 48 */
67};
68
69int syslinux_shuffle_boot_rm(struct syslinux_movelist *fraglist,
70			     struct syslinux_memmap *memmap,
71			     uint16_t bootflags, struct syslinux_rm_regs *regs);
72
73#endif /* _SYSLINUX_BOOTRM_H */
74