1/* ----------------------------------------------------------------------- *
2 *
3 *   Copyright 2001-2008 H. Peter Anvin - All Rights Reserved
4 *
5 *   This program is free software; you can redistribute it and/or modify
6 *   it under the terms of the GNU General Public License as published by
7 *   the Free Software Foundation, Inc., 53 Temple Place Ste 330,
8 *   Boston MA 02111-1307, USA; either version 2 of the License, or
9 *   (at your option) any later version; incorporated herein by reference.
10 *
11 * ----------------------------------------------------------------------- */
12
13/*
14 * e820hack.c
15 *
16 * Test of INT 15:E820 canonicalization/manipulation routine
17 */
18
19#include <string.h>
20#include <stdio.h>
21#include <stdlib.h>
22#include <inttypes.h>
23#include "e820.h"
24
25void *sys_bounce;		/* Dummy */
26
27extern void parse_mem(void);
28extern uint32_t dos_mem, low_mem, high_mem;
29
30void __attribute__ ((noreturn)) die(void)
31{
32    abort();
33}
34
35void printranges(void)
36{
37    int i;
38
39    for (i = 0; i < nranges; i++) {
40	printf("%016llx %016llx %d\n",
41	       ranges[i].start,
42	       ranges[i + 1].start - ranges[i].start, ranges[i].type);
43    }
44}
45
46int main(void)
47{
48    uint64_t start, len;
49    uint32_t type;
50    char line[BUFSIZ], *p;
51
52    e820map_init();
53    printranges();
54
55    while (fgets(line, BUFSIZ, stdin)) {
56	p = strchr(line, ':');
57	p = p ? p + 1 : line;
58	if (sscanf(p, " %llx %llx %d", &start, &len, &type) == 3) {
59	    putchar('\n');
60	    printf("%016llx %016llx %d <-\n", start, len, type);
61	    putchar('\n');
62	    insertrange(start, len, type);
63	    printranges();
64	}
65    }
66
67    parse_mem();
68
69    putchar('\n');
70    printf("DOS  mem = %#10x (%u K)\n", dos_mem, dos_mem >> 10);
71    printf("Low  mem = %#10x (%u K)\n", low_mem, low_mem >> 10);
72    printf("High mem = %#10x (%u K)\n", high_mem, high_mem >> 10);
73    putchar('\n');
74
75    /* Now, steal a chunk (2K) of DOS memory and make sure it registered OK */
76    insertrange(dos_mem - 2048, 2048, 2, 1);	/* Type 2 = reserved */
77
78    printranges();
79    parse_mem();
80
81    putchar('\n');
82    printf("DOS  mem = %#10x (%u K)\n", dos_mem, dos_mem >> 10);
83    printf("Low  mem = %#10x (%u K)\n", low_mem, low_mem >> 10);
84    printf("High mem = %#10x (%u K)\n", high_mem, high_mem >> 10);
85    putchar('\n');
86
87    return 0;
88}
89