On Monday 18 February 2002 10:35 pm, Keith Whitwell wrote: > The rings are in agp space. It's a bug in the security model of the i810, > it's arcane, but believe me it's real.
Which leaves it open to attack because the AGP space isn't covered by the protection system. Got to wonder what they were thinking with that- to come up with a nice scheme for protecting the system against rogue code submitted from userspace to leave it open like that. I guess they thought it'd be difficult to implement an exploit with that. I ought to read up more on the rings- I got the impression from the documentation that they were just out in memory and were purely DMAed from anywhere in system memory. Thank you for being patient and putting up w/me here... :-) -- Frank Earl _______________________________________________ Dri-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/dri-devel
