test/kernel/mmap.c

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