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
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
|
#ident "$Id$"
/* ----------------------------------------------------------------------- *
*
* Copyright 2001-2003 H. Peter Anvin - All Rights Reserved
*
* 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, Inc., 53 Temple Place Ste 330,
* Boston MA 02111-1307, USA; either version 2 of the License, or
* (at your option) any later version; incorporated herein by reference.
*
* ----------------------------------------------------------------------- */
/*
* e820hack.c
*
* Test of INT 15:E820 canonicalization/manipulation routine
*/
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <inttypes.h>
#include "e820.h"
void *sys_bounce; /* Dummy */
extern void parse_mem(void);
extern uint32_t dos_mem, low_mem, high_mem;
void __attribute__((noreturn)) die(void)
{
abort();
}
void printranges(void) {
int i;
for ( i = 0 ; i < nranges ; i++ ) {
printf("%016llx %016llx %d\n",
ranges[i].start,
ranges[i+1].start - ranges[i].start,
ranges[i].type);
}
}
int main(void)
{
uint64_t start, len;
uint32_t type;
char line[BUFSIZ], *p;
e820map_init();
printranges();
while ( fgets(line, BUFSIZ, stdin) ) {
p = strchr(line, ':');
p = p ? p+1 : line;
if ( sscanf(p, " %llx %llx %d", &start, &len, &type) == 3 ) {
putchar('\n');
printf("%016llx %016llx %d <-\n", start, len, type);
putchar('\n');
insertrange(start, len, type);
printranges();
}
}
parse_mem();
putchar('\n');
printf("DOS mem = %#10x (%u K)\n", dos_mem, dos_mem >> 10);
printf("Low mem = %#10x (%u K)\n", low_mem, low_mem >> 10);
printf("High mem = %#10x (%u K)\n", high_mem, high_mem >> 10);
putchar('\n');
/* Now, steal a chunk (2K) of DOS memory and make sure it registered OK */
insertrange(dos_mem-2048, 2048, 2); /* Type 2 = reserved */
printranges();
parse_mem();
putchar('\n');
printf("DOS mem = %#10x (%u K)\n", dos_mem, dos_mem >> 10);
printf("Low mem = %#10x (%u K)\n", low_mem, low_mem >> 10);
printf("High mem = %#10x (%u K)\n", high_mem, high_mem >> 10);
putchar('\n');
return 0;
}
|
