lkml.org 
[lkml]   [1999]   [Feb]   [3]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRe: [patch] Katmai/PIII support for Linux pre-2.2.2-1
Date
> > nor do we want to do boot-time dynamic linking.
>
> I think it would be better to do this. It would allow for a common kernel
> that runs on all of Intel CPUs without opening a potential security hole
> or having a serious performance impact, as not using the KNIs at all would
> have.

Its not a "potential" security hole.

If KNI instructions don't fault in an environment where they are marked
available but not saved then its an actual hole. If KNI instructions do
fault its not a security hole

In case a) Ingo's code needs to panic at boot on a Xeon/PIII if its
not using FXSAVE (clearly not acceptable) or dynamic link
In case b) Ingo's patch is fine.

Ingo - I've yet to see any actual PIII docs - what _actually_ occurs in
this situation


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

\
 
 \ /
  Last update: 2005-03-22 13:50    [W:0.069 / U:0.024 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site