1 /*- 2 * Copyright (c) 1998 Michael Smith <msmith@freebsd.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27 #include <sys/cdefs.h> 28 #include <stand.h> 29 #include <sys/param.h> 30 #include <sys/reboot.h> 31 #include <sys/linker.h> 32 #include <machine/pc/bios.h> 33 #include <machine/metadata.h> 34 35 #include "bootstrap.h" 36 #include "libuserboot.h" 37 38 #define GB (1024UL * 1024 * 1024) 39 40 void 41 bios_addsmapdata(struct preloaded_file *kfp) 42 { 43 uint64_t lowmem, highmem; 44 int smapnum, len; 45 struct bios_smap smap[3], *sm; 46 47 CALLBACK(getmem, &lowmem, &highmem); 48 49 sm = &smap[0]; 50 51 sm->base = 0; /* base memory */ 52 sm->length = 640 * 1024; 53 sm->type = SMAP_TYPE_MEMORY; 54 sm++; 55 56 sm->base = 0x100000; /* extended memory */ 57 sm->length = lowmem - 0x100000; 58 sm->type = SMAP_TYPE_MEMORY; 59 sm++; 60 61 smapnum = 2; 62 63 if (highmem != 0) { 64 sm->base = 4 * GB; 65 sm->length = highmem; 66 sm->type = SMAP_TYPE_MEMORY; 67 smapnum++; 68 } 69 70 len = smapnum * sizeof(struct bios_smap); 71 file_addmetadata(kfp, MODINFOMD_SMAP, len, &smap[0]); 72 } 73