blob: df60c5a77269098842ad8f492bd5466106c95ace (
plain)
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
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
|
#ifndef BIOS_H_
#define BIOS_H_
#include <inttypes.h>
#include <stddef.h>
#include <stdbool.h>
/*
* When interfacing with assembler code we need to be sure how
* arguments are passed in real mode.
*/
#define bioscall __attribute__((regparm(3)))
#ifndef __ASSEMBLER__
struct biosregs {
uint32_t eax;
uint32_t ebx;
uint32_t ecx;
uint32_t edx;
uint32_t esp;
uint32_t ebp;
uint32_t esi;
uint32_t edi;
uint32_t ds;
uint32_t es;
uint32_t fs;
uint32_t eip;
uint32_t eflags;
};
extern bioscall void int10_handler(struct biosregs *regs);
extern bioscall void int15_handler(struct biosregs *regs);
extern bioscall void e820_query_map(struct biosregs *regs);
extern void bios_intfake(void);
extern void bios_irq(void);
extern void bios_int10(void);
extern void bios_int15(void);
extern void setup_pci(void);
extern void setup_hw(void);
extern bool setup_mmconfig(void);
extern void extract_acpi(void);
extern void boot_from_fwcfg(void);
extern bool boot_from_cbfs(void *base, size_t sz);
extern uint16_t e820_seg;
extern uint32_t lowmem;
extern uint8_t stext;
extern uint8_t edata;
extern uint8_t sinit;
extern uint8_t einit;
#define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))
static inline void __attribute__((noreturn)) panic(void)
{
asm volatile("cli; hlt");
for(;;);
}
#endif
#endif /* BIOS_H_ */
|
