linux-kernel - Re: [RFC] enhancing the kernel's graphics subsystem

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Message-ID: <20070522013545.5c269641@the-village.bc.nu>
Date:	Tue, 22 May 2007 01:35:45 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Jeff Garzik <jeff@...zik.org>
Cc:	Dave Airlie <airlied@...il.com>, Jon Smirl <jonsmirl@...il.com>,
	Jesse Barnes <jbarnes@...tuousgeek.org>,
	Jesse Barnes <jesse.barnes@...el.com>,
	linux-kernel@...r.kernel.org,
	"Antonino A. Daplas" <adaplas@...il.com>
Subject: Re: [RFC] enhancing the kernel's graphics subsystem

> > the kernel, it can be a lot smaller than X and auditable.. sticking
> > the DRI protocol in the kernel is just pointless..
> 
> It is a quite sensible idea.
> 
> The userspace X server SHOULD be running under a non-root user, with 
> appropriate fine-grained privs granted to it.
> 
> "I need root to do graphics" is a myopic, antiquated view of the world.

X server: priviledges below everything, pageable
kernel: priviledges as high as conceivable, non-pageable

So why do you want it in kernel.... security is not the sensible answer
here.

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