89 lines
2.2 KiB
C
89 lines
2.2 KiB
C
/* ----------------------------------------------------------------------- *
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*
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* Copyright 2001-2008 H. Peter Anvin - All Rights Reserved
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, Inc., 53 Temple Place Ste 330,
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* Boston MA 02111-1307, USA; either version 2 of the License, or
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* (at your option) any later version; incorporated herein by reference.
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*
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* ----------------------------------------------------------------------- */
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/*
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* e820hack.c
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*
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* Test of INT 15:E820 canonicalization/manipulation routine
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*/
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#include <string.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <inttypes.h>
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#include "e820.h"
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void *sys_bounce; /* Dummy */
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extern void parse_mem(void);
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extern uint32_t dos_mem, low_mem, high_mem;
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void __attribute__ ((noreturn)) die(void)
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{
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abort();
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}
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void printranges(void)
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{
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int i;
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for (i = 0; i < nranges; i++) {
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printf("%016llx %016llx %d\n",
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ranges[i].start,
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ranges[i + 1].start - ranges[i].start, ranges[i].type);
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}
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}
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int main(void)
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{
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uint64_t start, len;
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uint32_t type;
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char line[BUFSIZ], *p;
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e820map_init();
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printranges();
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while (fgets(line, BUFSIZ, stdin)) {
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p = strchr(line, ':');
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p = p ? p + 1 : line;
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if (sscanf(p, " %llx %llx %d", &start, &len, &type) == 3) {
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putchar('\n');
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printf("%016llx %016llx %d <-\n", start, len, type);
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putchar('\n');
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insertrange(start, len, type);
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printranges();
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}
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}
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parse_mem();
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putchar('\n');
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printf("DOS mem = %#10x (%u K)\n", dos_mem, dos_mem >> 10);
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printf("Low mem = %#10x (%u K)\n", low_mem, low_mem >> 10);
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printf("High mem = %#10x (%u K)\n", high_mem, high_mem >> 10);
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putchar('\n');
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/* Now, steal a chunk (2K) of DOS memory and make sure it registered OK */
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insertrange(dos_mem - 2048, 2048, 2, 1); /* Type 2 = reserved */
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printranges();
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parse_mem();
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putchar('\n');
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printf("DOS mem = %#10x (%u K)\n", dos_mem, dos_mem >> 10);
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printf("Low mem = %#10x (%u K)\n", low_mem, low_mem >> 10);
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printf("High mem = %#10x (%u K)\n", high_mem, high_mem >> 10);
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putchar('\n');
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return 0;
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}
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