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Subject: Re: svn commit: r261266 - in head: sys/dev/drm sys/kern sys/sys
 usr.sbin/jail
From: "Robert N. M. Watson" <rwatson@FreeBSD.org>
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Date: Tue, 4 Feb 2014 08:25:57 +0000
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To: Adrian Chadd <adrian@freebsd.org>
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On 4 Feb 2014, at 07:53, Adrian Chadd <adrian@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.
>=20
> 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=