payloads/coreinfo/coreboot_module.c

   1 /*
   2  * This file is part of the coreinfo project.
   3  *
   4  * Copyright (C) 2008 Advanced Micro Devices, Inc.
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; version 2 of the License.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  18  */
  19
  20 #include <coreboot_tables.h>
  21 #include "coreinfo.h"
  22
  23 #define MAX_MEMORY_COUNT 5
  24
  25 static struct {
  26         int mem_count;
  27         int mem_actual;
  28
  29         struct cb_memory_range range[MAX_MEMORY_COUNT];
  30
  31         char vendor[32];
  32         char part[32];
  33
  34         char strings[10][64];
  35
  36         struct cb_serial serial;
  37         struct cb_console console;
  38 } cb_info;
  39
  40 static int tables_good = 0;
  41
  42 int coreboot_module_redraw(WINDOW *win)
  43 {
  44         int row = 2;
  45         int i;
  46
  47         print_module_title(win, "Coreboot Tables");
  48
  49         if (tables_good) {
  50                 mvwprintw(win, row++, 2, "No Coreboot tables were found");
  51                 return 0;
  52         }
  53
  54         mvwprintw(win, row++, 2, "Vendor: %s", cb_info.vendor);
  55         mvwprintw(win, row++, 2, "Part: %s", cb_info.part);
  56
  57         mvwprintw(win, row++, 2, "Version: %s%s",
  58                   cb_info.strings[CB_TAG_VERSION - 0x4],
  59                   cb_info.strings[CB_TAG_EXTRA_VERSION - 0x4]);
  60
  61         mvwprintw(win, row++, 2, "Built: %s (%s@%s.%s)",
  62                   cb_info.strings[CB_TAG_BUILD - 0x4],
  63                   cb_info.strings[CB_TAG_COMPILE_BY - 0x04],
  64                   cb_info.strings[CB_TAG_COMPILE_HOST - 0x04],
  65                   cb_info.strings[CB_TAG_COMPILE_DOMAIN - 0x04]);
  66
  67         if (cb_info.serial.tag != 0x0) {
  68                 mvwprintw(win, row++, 2, "Serial Port I/O base: 0x%x",
  69                           cb_info.serial.ioport);
  70         }
  71
  72         if (cb_info.console.tag != 0x0) {
  73                 mvwprintw(win, row++, 2, "Default Output Console: ");
  74
  75                 switch (cb_info.console.type) {
  76                 case CB_TAG_CONSOLE_SERIAL8250:
  77                         wprintw(win, "Serial Port");
  78                         break;
  79                 case CB_TAG_CONSOLE_VGA:
  80                         wprintw(win, "VGA");
  81                         break;
  82                 case CB_TAG_CONSOLE_BTEXT:
  83                         wprintw(win, "BTEXT");
  84                         break;
  85                 case CB_TAG_CONSOLE_LOGBUF:
  86                         wprintw(win, "Log Buffer");
  87                         break;
  88                 case CB_TAG_CONSOLE_SROM:
  89                         wprintw(win, "Serial ROM");
  90                         break;
  91                 case CB_TAG_CONSOLE_EHCI:
  92                         wprintw(win, "USB Debug");
  93                         break;
  94                 }
  95         }
  96
  97         row++;
  98         mvwprintw(win, row++, 2, "-- Memory Map --");
  99
 100         for (i = 0; i < cb_info.mem_count; i++) {
 101                 switch (cb_info.range[i].type) {
 102                 case CB_MEM_RAM:
 103                         mvwprintw(win, row++, 4, "     RAM: ");
 104                         break;
 105                 case CB_MEM_RESERVED:
 106                         mvwprintw(win, row++, 4, "Reserved: ");
 107                         break;
 108                 case CB_MEM_TABLE:
 109                         mvwprintw(win, row++, 4, "   Table: ");
 110                 }
 111
 112                 wprintw(win, "%16.16llx - %16.16llx",
 113                         UNPACK_CB64(cb_info.range[i].start),
 114                         UNPACK_CB64(cb_info.range[i].start) +
 115                         UNPACK_CB64(cb_info.range[i].size) - 1);
 116         }
 117 }
 118
 119 static void parse_memory(unsigned char *ptr)
 120 {
 121         struct cb_memory *mem = (struct cb_memory *)ptr;
 122
 123         int max = (MEM_RANGE_COUNT(mem) > MAX_MEMORY_COUNT)
 124             ? MAX_MEMORY_COUNT : MEM_RANGE_COUNT(mem);
 125         int i;
 126
 127         for (i = 0; i < max; i++) {
 128                 struct cb_memory_range *range =
 129                     (struct cb_memory_range *)MEM_RANGE_PTR(mem, i);
 130
 131                 memcpy(&cb_info.range[i], range, sizeof(*range));
 132         }
 133
 134         cb_info.mem_count = max;
 135         cb_info.mem_actual = MEM_RANGE_COUNT(mem);
 136 }
 137
 138 static void parse_mainboard(unsigned char *ptr)
 139 {
 140         struct cb_mainboard *mb = (struct cb_mainboard *)ptr;
 141
 142         strncpy(cb_info.vendor, MB_VENDOR_STRING(mb), 31);
 143         strncpy(cb_info.part, MB_PART_STRING(mb), 31);
 144 }
 145
 146 static void parse_strings(unsigned char *ptr)
 147 {
 148         struct cb_string *string = (struct cb_string *)ptr;
 149         int index = string->tag - CB_TAG_VERSION;
 150
 151         strncpy(cb_info.strings[index], string->string, 63);
 152         cb_info.strings[index][63] = 0;
 153 }
 154
 155 static void parse_serial(unsigned char *ptr)
 156 {
 157         memcpy(&cb_info.serial, (struct cb_serial *)ptr,
 158                sizeof(struct cb_serial));
 159 }
 160
 161 static void parse_console(unsigned char *ptr)
 162 {
 163         memcpy(&cb_info.console, (struct cb_console *)ptr,
 164                sizeof(struct cb_console));
 165 }
 166
 167 static int parse_header(void *addr, int len)
 168 {
 169         struct cb_header *header;
 170         unsigned char *ptr = (unsigned char *)addr;
 171         int i;
 172
 173         for (i = 0; i < len; i += 16, ptr += 16) {
 174                 header = (struct cb_header *)ptr;
 175
 176                 if (!strncmp(header->signature, "LBIO", 4))
 177                         break;
 178         }
 179
 180         /* We walked the entire space and didn't find anything. */
 181         if (i >= len)
 182                 return -1;
 183
 184         if (!header->table_bytes)
 185                 return 0;
 186
 187         /* FIXME: Check the checksum. */
 188
 189         if (ipchksum((uint16_t *) header, sizeof(*header)))
 190                 return -1;
 191
 192         if (ipchksum((uint16_t *) (ptr + sizeof(*header)), header->table_bytes)
 193             != header->table_checksum)
 194                 return -1;
 195
 196         /* Now, walk the tables. */
 197         ptr += header->header_bytes;
 198
 199         for (i = 0; i < header->table_entries; i++) {
 200                 struct cb_record *rec = (struct cb_record *)ptr;
 201
 202                 switch (rec->tag) {
 203                 case CB_TAG_MEMORY:
 204                         parse_memory(ptr);
 205                         break;
 206                 case CB_TAG_MAINBOARD:
 207                         parse_mainboard(ptr);
 208                         break;
 209                 case CB_TAG_VERSION:
 210                 case CB_TAG_EXTRA_VERSION:
 211                 case CB_TAG_BUILD:
 212                 case CB_TAG_COMPILE_TIME:
 213                 case CB_TAG_COMPILE_BY:
 214                 case CB_TAG_COMPILE_HOST:
 215                 case CB_TAG_COMPILE_DOMAIN:
 216                 case CB_TAG_COMPILER:
 217                 case CB_TAG_LINKER:
 218                 case CB_TAG_ASSEMBLER:
 219                         parse_strings(ptr);
 220                         break;
 221                 case CB_TAG_SERIAL:
 222                         parse_serial(ptr);
 223                         break;
 224                 case CB_TAG_CONSOLE:
 225                         parse_console(ptr);
 226                         break;
 227                 default:
 228                         break;
 229                 }
 230
 231                 ptr += rec->size;
 232         }
 233
 234         return 1;
 235 }
 236
 237 int coreboot_module_init(void)
 238 {
 239         int ret = parse_header((void *)0x00000, 0x1000);
 240
 241         if (ret != 1)
 242                 ret = parse_header((void *)0xf0000, 0x1000);
 243
 244         /* Return error if we couldn't find it at either address. */
 245         tables_good = (ret == 1) ? 0 : -1;
 246         return tables_good;
 247 }
 248
 249 struct coreinfo_module coreboot_module = {
 250         .name = "Coreboot",
 251         .init = coreboot_module_init,
 252         .redraw = coreboot_module_redraw,
 253 };