Re: [RFC 1/6] x86, NMI, Add symbol definition for NMI magic constants

H. Peter Anvin
2010-09-10T22:59:12Z

On 09/10/2010 01:37 PM, Peter Zijlstra wrote:
> On Fri, 2010-09-10 at 10:51 +0800, Huang Ying wrote:
>> + return inb(NMI_REASON_PORT);
>
> I've always wondered, where is this magic stuff documented?
>

A lot of the pre-2000 stuff is documented in Ralf Brown's Interrupt
List, and the associated book "The Undocumented PC". A lot was
originally documented in various now-out-of-print IBM technical manuals.

RBIL unfortunately hasn't been updated since 2000. The good news is
that post 2000 there are a lot more formal standards out there, but not
collected in one convenient place like that.

-hpa