Date: Wed, 29 Oct 1997 12:43:39 +0200 (EET) From: Narvi <narvi@haldjas.folklore.ee> To: Niall Smart <njs3@doc.ic.ac.uk> Cc: freebsd-hackers@FreeBSD.ORG Subject: Re: Loading code from userland Message-ID: <Pine.BSF.3.96.971029124050.10657A-100000@haldjas.folklore.ee> In-Reply-To: <E0xQHsk-0007XH-00@ash2.doc.ic.ac.uk>
next in thread | previous in thread | raw e-mail | index | archive | help
On Tue, 28 Oct 1997, Niall Smart wrote: > On Oct 28, 5:57pm, Terry Lambert wrote: > [snip] > > FreeBSD does not support the concept of more than two protection > > domains, mostly because it aspires to run on more hardware than just > > VAX and Intel processors, and some of that hardware only supports > > two domain identities. > > I presume the two protection domains you refer to are user and supervisor > modes. > Yes. Well, they are actually kernel/userland modes if you look from the software angle. > > In practice, the LKM will need to be frequently recompiled. A > > procedurally abstract interface does not depend on structure > > references, so this is another reason to use one instead of LKM's > > (at least until there is a formal DDI/DKI specification). > > What do DDI/DDK stand for? Is there a project implementing them (you > seem to think they are useful) > DDK=Device Development Kit. And no, there is no known project (AFAIK) under way of creating such beasts. > Niall > Sander
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?Pine.BSF.3.96.971029124050.10657A-100000>