Re: [coreboot] [OpenBIOS] OpenBIOS SVN r416 breaks coreboot-v3

[Mark Cave-Ayland]

Myles Watson wrote:
> That's actually what I would have expected.  The IO address range is
> only 16 bits from 0-64K.
>
> I guess we'll have to get more information from qemu so we know which
> port address is being accessed when it dies.
>
> Myles

Hi Myles,

Here's my quick patch to qemu to dump out the address where the write is 
failing:

Index: vl.c
===================================================================
--- vl.c        (revision 6426)
+++ vl.c        (working copy)
@@ -389,7 +389,7 @@
      for(i = start; i < start + length; i += size) {
          ioport_write_table[bsize][i] = func;
          if (ioport_opaque[i] != NULL && ioport_opaque[i] != opaque)
-            hw_error("register_ioport_write: invalid opaque");
+            hw_error("register_ioport_write: invalid opaque: (start 
0x%x, length 0x%x, address 0x%x)", start, length, i);
          ioport_opaque[i] = opaque;
      }
      return 0;

And here is the result output:

qemu: hardware error: register_ioport_write: invalid opaque: (start 
0x510, length 0x1, address 0x510)

HTH,

Mark.