test/kernel/mmap.c

   1 /*
   2     Copyright © 1995-2014, The AROS Development Team. All rights reserved.
   3     $Id$
   4 */
   5
   6 #include <aros/kernel.h>
   7 #include <aros/multiboot.h>
   8 #include <proto/exec.h>
   9 #include <proto/kernel.h>
  10 #include <proto/utility.h>
  11 #include <proto/kernel.h>
  12
  13 #include <stdio.h>
  14
  15 int __nocommandline = 1;
  16
  17 static const char *types[] =
  18 {
  19     "Unknown  ",
  20     "Avalable ",
  21     "Reserved ",
  22     "ACPI Data",
  23     "ACPI NVS "
  24 };
  25
  26 int main(void)
  27 {
  28     struct TagItem *tags;
  29     struct mb_mmap *mmap;
  30     IPTR len;
  31     APTR KernelBase = OpenResource("kernel.resource");
  32
  33     if (!KernelBase)
  34     {
  35         printf("Failed to open kernel.resource!\n");
  36         return 20;
  37     }
  38
  39     tags = KrnGetBootInfo();
  40     if (!tags)
  41     {
  42         printf("No boot information from the bootstrap!\n");
  43         return 20;
  44     }
  45
  46     mmap = (struct mb_mmap *)GetTagData(KRN_MMAPAddress, 0, tags);
  47     len  = GetTagData(KRN_MMAPLength, 0, tags);
  48
  49     if (!mmap || !len)
  50     {
  51         printf("No memory map provided by the bootstrap!\n");
  52         return 20;
  53     }
  54
  55     printf("Memory map at 0x%p, length %lu:\n", mmap, len);
  56     while (len >= sizeof(struct mb_mmap))
  57     {
  58         unsigned int type = mmap->type;
  59         unsigned long long memaddr = mmap->addr;
  60         unsigned long long memlen  = mmap->len;
  61
  62         if (type > MMAP_TYPE_ACPINVS)
  63             type = 0;
  64
  65 #if __WORDSIZE < 64
  66         memaddr |= (unsigned long long)mmap->addr_high << 32;
  67         memlen  |= (unsigned long long)mmap->len_high << 32;
  68 #endif
  69
  70         printf("Entry size %d type %d <%s> addr 0x%016llx len 0x%016llx\n", mmap->size, mmap->type, types[type], memaddr, memlen);
  71
  72         len -= mmap->size + 4;
  73         mmap = (struct mb_mmap *)(mmap->size + (unsigned long)mmap + 4);
  74     }
  75
  76     return 0;
  77 }