svn commit: r261266 - in head: sys/dev/drm sys/kern sys/sys usr.sbin/jail

[Robert N. M. Watson]

On 4 Feb 2014, at 07:53, Adrian Chadd <adrian at freebsd.org> wrote:

> I really would rather see Xorg gain whatever abstraction is necessary
> to probe/attach/interface with a DRI API supported graphics card.
> 
> So, this then becomes a question of whether this is needed for DRI API
> supported graphics cards, or whether you're trying to solve the
> general case (eg for nvidia stuff.) It would be nice to enumerate
> what's required for different ways of interfacing to the graphics
> subsystem(s).

A safely delegable interface to DRI and friends would be excellent -- not just for jails, but just for the purposes of safely providing access to unprivileged components. However, looking at the recent history of GPU driver bugs (e.g., Samsung) I have worries. As IOMMUs become more widely available, that should help.

Robert