| |
|
 |
|
 |
|
|
|
| |
|
|
xen-devel
> On Tue, 13 Jul 2004, Ian Pratt wrote:
>
> > Which nvidia driver? One in the Linux kernel, or can it work just
> > by using a suitable driver in the Xserver? What mechanism does
> > it use to write the mtrr's ? (these could be virtualised without
> > too much trouble -- there's already an rd/wrmsr.)
>
> latest driver, which is of course mostly a binary module. I'll look for
> what source I can.
>
> I am guessing it stupidly does a rdmsr/wrmsr since it got the GPF.
Ouch, if its a binary driver its probably pretty doomed. All
sorts of things could be causing problems e.g. cli/sti. Doing an
objdump -d and doing a bit of grep'ing might reveal the scale of
the problem.
For a laugh, why not fire-up your favourite binary editor and
turn the rd/wrmsr's into nops. (You could do do them in the
src wrapper anyhow.)
If you actually get somewhere with this approach, we could
consider having a special linux GPF handler that decodes the
instruction and patches these up. Barf.
Ian
-------------------------------------------------------
This SF.Net email sponsored by Black Hat Briefings & Training.
Attend Black Hat Briefings & Training, Las Vegas July 24-29 -
digital self defense, top technical experts, no vendor pitches,
unmatched networking opportunities. Visit www.blackhat.com
_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxxxx
https://lists.sourceforge.net/lists/listinfo/xen-devel
|
|
|
| |
|
Home