#ident "$Id$" /* ----------------------------------------------------------------------- * * * Copyright 2001 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, * Bostom 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 #include #include #include "e820.h" 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("%016Lx %016Lx %d\n", ranges[i].start, ranges[i+1].start - ranges[i].start, ranges[i].type); } } int main(int argc, char *argv[]) { uint64_t start, len; uint32_t type; printranges(); while ( scanf("%Lx %Lx %d", &start, &len, &type) == 3 ) { putchar('\n'); printf("%016Lx %016Lx %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; }