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