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Re: user-level drivers
From: |
Samuel Thibault |
Subject: |
Re: user-level drivers |
Date: |
Tue, 15 Nov 2011 00:02:58 +0100 |
User-agent: |
Mutt/1.5.21+34 (58baf7c9f32f) (2010-12-30) |
Hello,
Considering the target of user-level drivers, I've come to a few biting
points:
- we should have a PCI arbitrer in the end.
- that arbitrer should permit to confine drivers to resources of only
one PCI device, no more (though of course with DMA, without IO-MMU,
you could access anywhere on the machine, but that's way less
probable, and still the arbitrer might be able to govern them).
- so the user-level interface we are discussing at the moment will
probably just be replaced at that moment.
- so do we really need to polish it yet more, or else simply start using
it, and see what's broken in it?
Samuel
- Re: user-level drivers,
Samuel Thibault <=