lkml.org 
[lkml]   [2003]   [Feb]   [14]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [discuss] Re: [Bug 350] New: i386 context switch very slow compared to 2.4 due to wrmsr (performance)
On Fri, 14 Feb 2003, Robert Dewar wrote:

> > > The only way to get from long-mode back to legacy-mode is to reset the
> > > processor. It can be done in software but you will likely lose interrupts.
> >
> > Smartdrv.sys and triple-faults come back, all is forgiven! ;)
>
> I have an idea, perhaps we can make the keyboard controller recognize a special
> command that will reset the processor :-) :-)

Do you think there is room enough left in the ROM for the microcontroller
used as keyboard controller? We also need to squeeze in the already
planned backwards compatibility feature to mask the A20 line thru a
special command, you know.

But maybe we could move both these features into the motherboard chipset?

-Peter


-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:33    [W:0.038 / U:0.132 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site