LXR qemu/tests/multiboot/mmap.c

   1/*
   2 * Copyright (c) 2013 Kevin Wolf <kwolf@redhat.com>
   3 *
   4 * Permission is hereby granted, free of charge, to any person obtaining a copy
   5 * of this software and associated documentation files (the "Software"), to deal
   6 * in the Software without restriction, including without limitation the rights
   7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   8 * copies of the Software, and to permit persons to whom the Software is
   9 * furnished to do so, subject to the following conditions:
  10 *
  11 * The above copyright notice and this permission notice shall be included in
  12 * all copies or substantial portions of the Software.
  13 *
  14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  17 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  20 * THE SOFTWARE.
  21 */
  22
  23#include "libc.h"
  24#include "multiboot.h"
  25
  26int test_main(uint32_t magic, struct mb_info *mbi)
  27{
  28    uintptr_t entry_addr;
  29    struct mb_mmap_entry *entry;
  30
  31    (void) magic;
  32
  33    printf("Lower memory: %dk\n", mbi->mem_lower);
  34    printf("Upper memory: %dk\n", mbi->mem_upper);
  35
  36    printf("\ne820 memory map:\n");
  37
  38    for (entry_addr = mbi->mmap_addr;
  39         entry_addr < mbi->mmap_addr + mbi->mmap_length;
  40         entry_addr += entry->size + 4)
  41    {
  42        entry = (struct mb_mmap_entry*) entry_addr;
  43
  44        printf("%#llx - %#llx: type %d [entry size: %d]\n",
  45               entry->base_addr,
  46               entry->base_addr + entry->length,
  47               entry->type,
  48               entry->size);
  49    }
  50
  51    printf("\nmmap start:       %#x\n", mbi->mmap_addr);
  52    printf("mmap end:         %#x\n", mbi->mmap_addr + mbi->mmap_length);
  53    printf("real mmap end:    %#x\n", entry_addr);
  54
  55    return 0;
  56}
  57