qemu target

[Stefan Reinauer]

* Eric W. Biederman <ebiederman at lnxi.com> [040630 19:10]:
> Ok then most likely you have managed to get the debugging printk's
> compiled out or something like that.  It should be possible to insert
> a -g statement into the build and then to step through the code execution
> with gdb.  qemu appears to have support for gdb stubs.
> 
> The real interesting part is what is the debug level set to.  And you can
> get that with port 0x80.
> 
> Maybe we are attempting to use cmos options and that is not properly implemented?

Actually that sounds very reasonable. all my builds where this happens
are built without cmos support, and in this case the get_option()
function always returns -2 iirc. 

I will give it a try enabling option tables 

Stefan