BTX loader problem on specific hardware
mad at madpilot.net
Sat Jun 18 08:10:48 UTC 2011
On 06/17/11 18:01, John Baldwin wrote:
>> I'm not sure, but maybe rdmsr or wrmsr are generating exceptions which
>> are not managed by BTX? I could be wrong, I really dont' know that much
>> about the internals of CPUs.
> Well, the old BTX didn't allow full access to CR registers. Running in
> real mode, there should be no problems with any MSR accesses though in
> the new BTX.
I thought that, but I could not identify any other big diffs from the
other BIOS I had a look at.
>> I obviously have the disassembled code available, but not posting it
>> here because I'm not sure what policies there are about disassembled
>> code on the lists.
> You can post a URL perhaps (or just send it to me directly if you wish).
I put there a disassembled.txt with the relevant parts disassembled and
put in some kind of order(you'll anyway need to jump a round a little,
could not make it any better). There's a small comment identifying the
I put there a dump of the full BIOS and the IDT, just in case.
Thank you again!
Guido Falsi <mad at madpilot.net>
More information about the freebsd-stable