Subject: Re: options INSECURE
To: Michael Lorenz <macallan@netbsd.org>
From: Thor Lancelot Simon <tls@rek.tjls.com>
List: port-macppc
Date: 12/02/2006 00:14:23
On Fri, Dec 01, 2006 at 11:50:02PM -0500, Michael Lorenz wrote:
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> Hello,
>
> does anyone remember why we have options INSECURE in GENERIC? We
> certainly don't need it for XFree86 - unlike i386 we don't use /dev/mem
> there.
If you allow access to graphics card registers from user space, you
_should_ need options INSECURE; DMA engines on graphics cards can be
used to overwrite host RAM.
Thor