Re: Mach64 still not in kernel tree

2005-11-26 Thread Michael Frank
On Wednesday 23 November 2005 18:32, Alan Cox wrote:
> On Mer, 2005-11-23 at 11:46 -0500, Adam Jackson wrote:
> > On Wednesday 23 November 2005 07:48, Michael Frank 
wrote:
> > > Testing 2.6.15-rc2  in-kernel DRM, why still no
> > > mach64 support which works fine for me from
> > > snapshots/cvs?
> >
> > Because it's still insecure.
>
> Michael - If you've got a Mach64 and you want it
> mainstream you need to add code which validates the
> command stream passed to the chip is valid. There is code
> like this in the VIA driver and the Mach64 needs
> something similar to verify you aren't doing things like
> DMAing patches into the kernel with the graphics card but
> only using commands that are "safe".
>

Thank you Alan, I had a look at the via driver and will
work on the mach64 driver. 

Michael


---
This SF.net email is sponsored by: Splunk Inc. Do you grep through log files
for problems?  Stop!  Download the new AJAX search engine that makes
searching your log files as easy as surfing the  web.  DOWNLOAD SPLUNK!
http://ads.osdn.com/?ad_id=7637&alloc_id=16865&op=click
--
___
Dri-devel mailing list
Dri-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/dri-devel


Re: Mach64 still not in kernel tree

2005-11-23 Thread Alan Cox
On Mer, 2005-11-23 at 11:46 -0500, Adam Jackson wrote:
> On Wednesday 23 November 2005 07:48, Michael Frank wrote:
> > Testing 2.6.15-rc2  in-kernel DRM, why still no mach64
> > support which works fine for me from snapshots/cvs?
> 
> Because it's still insecure.

Michael - If you've got a Mach64 and you want it mainstream you need to
add code which validates the command stream passed to the chip is valid.
There is code like this in the VIA driver and the Mach64 needs something
similar to verify you aren't doing things like DMAing patches into the
kernel with the graphics card but only using commands that are "safe".




---
This SF.net email is sponsored by: Splunk Inc. Do you grep through log files
for problems?  Stop!  Download the new AJAX search engine that makes
searching your log files as easy as surfing the  web.  DOWNLOAD SPLUNK!
http://ads.osdn.com/?ad_id=7637&alloc_id=16865&op=click
--
___
Dri-devel mailing list
Dri-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/dri-devel


Re: Mach64 still not in kernel tree

2005-11-23 Thread Adam Jackson
On Wednesday 23 November 2005 07:48, Michael Frank wrote:
> Testing 2.6.15-rc2  in-kernel DRM, why still no mach64
> support which works fine for me from snapshots/cvs?

Because it's still insecure.

- ajax


pgpRVEStYxIcP.pgp
Description: PGP signature


Mach64 still not in kernel tree

2005-11-23 Thread Michael Frank
Testing 2.6.15-rc2  in-kernel DRM, why still no mach64 
support which works fine for me from snapshots/cvs?

Michael







---
This SF.Net email is sponsored by the JBoss Inc.  Get Certified Today
Register for a JBoss Training Course.  Free Certification Exam
for All Training Attendees Through End of 2005. For more info visit:
http://ads.osdn.com/?ad_id=7628&alloc_id=16845&op=click
--
___
Dri-devel mailing list
Dri-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/dri-devel