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Re: User-space device drivers: ``interface to interrupt hardware''
From: |
Samuel Thibault |
Subject: |
Re: User-space device drivers: ``interface to interrupt hardware'' |
Date: |
Thu, 20 Sep 2007 18:27:26 +0200 |
User-agent: |
Mutt/1.5.12-2006-07-14 |
Thomas Schwinge, le Thu 20 Sep 2007 17:21:03 +0200, a écrit :
> On Wed, Sep 19, 2007 at 02:22:00PM +0200, Ludovic Courtès wrote:
> > Thomas Schwinge <tschwinge@gnu.org> writes:
> > > What is Minix doing?
> >
> > Minix 3 uses user-level drivers. In some cases, when a transient
> > failure affects a driver process, it may be restarted.
>
> That I already knew about Minix.
>
> My question was rather if someone already knows the details about how the
> Minix microkernel handles hardware interrupts, how they are passed to
> user-space servers and how they are being handled there.
The micro-kernel sends a HARD_INTR message to the user-space servers.
Samuel