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Re: A Question to throw at you guys
From: |
Richard Braun |
Subject: |
Re: A Question to throw at you guys |
Date: |
Mon, 13 Nov 2006 21:40:44 +0100 |
User-agent: |
Mutt/1.5.9i |
On Mon, Nov 13, 2006 at 09:30:23PM +0100, Tom Bachmann wrote:
> Richard Braun schrieb:
> > [...] First you suggest using drivers
> > in userspace, isolated from the kernel (that's the "don't trust drivers"
> > part). [...]
> >
> > From my point of view, I don't see a way to reliably achieve the first
> > part, as hardware devices can be considered as most privileged entities,
> > potentially giving less privileged entities (device drivers) access to
> > most privileged data.
Well, sorry, I did say it, but the first part is actually more than just
userspace drivers, it's also the application of system policies by the
kernel, which I don't think is completely feasible (userspace drivers
are a way to achieve such policy for address spaces, but there are other
privileged resources to control).
--
Richard Braun
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- Re: A Question to throw at you guys, (continued)
Re: A Question to throw at you guys, Sam Mason, 2006/11/13
Re: A Question to throw at you guys, Richard Braun, 2006/11/13
- Re: A Question to throw at you guys, Tom Bachmann, 2006/11/13
- Re: A Question to throw at you guys, Richard Braun, 2006/11/13
- Re: A Question to throw at you guys, Tom Bachmann, 2006/11/13
- Re: A Question to throw at you guys, Richard Braun, 2006/11/13
- Re: A Question to throw at you guys, Pierre THIERRY, 2006/11/14
- Re: A Question to throw at you guys, Tom Bachmann, 2006/11/14
Re: A Question to throw at you guys,
Richard Braun <=
Re: A Question to throw at you guys, Nigel Williams, 2006/11/13
Re: A Question to throw at you guys, olafBuddenhagen, 2006/11/14
Re: A Question to throw at you guys, Christian Helmuth, 2006/11/14
Re: A Question to throw at you guys, olafBuddenhagen, 2006/11/14
Re: A Question to throw at you guys, Justin Emmanuel, 2006/11/14