1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
|
/*
* This file is part of the coreboot project.
*
* Copyright (C) 2007 Advanced Micro Devices, Inc.
* Copyright (C) 2009-2010 coresystems GmbH
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#ifndef __DEVICE_OPROM_REALMODE_X86_H__
#define __DEVICE_OPROM_REALMODE_X86_H__
#include <arch/cpu.h>
#define REALMODE_BASE ((void *)0x600)
struct realmode_idt {
u16 offset, cs;
};
void x86_exception(struct eregs *info);
/* From x86_asm.S */
extern unsigned char __idt_handler;
extern unsigned int __idt_handler_size;
extern unsigned char __realmode_code;
extern unsigned int __realmode_code_size;
extern unsigned int (*realmode_call)(u32 addr, u32 eax, u32 ebx, u32 ecx,
u32 edx, u32 esi, u32 edi) asmlinkage;
extern unsigned int (*realmode_interrupt)(u32 intno, u32 eax, u32 ebx, u32 ecx,
u32 edx, u32 esi, u32 edi) asmlinkage;
#define FAKE_MEMORY_SIZE (1024*1024) // only 1MB
#define INITIAL_EBDA_SEGMENT 0xF600
#define INITIAL_EBDA_SIZE 0x400
int int10_handler(void);
int int12_handler(void);
int int16_handler(void);
int int1a_handler(void);
#endif /* __DEVICE_OPROM_REALMODE_X86_H__ */
|
