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From: ron minnich <rminnich@lanl.gov>
To: 9fans@cse.psu.edu
Subject: Re: [9fans] Virtual PC 6 PCI device probe failure
Date: Wed, 25 Jun 2003 14:32:36 -0600	[thread overview]
Message-ID: <Pine.LNX.4.44.0306251431450.1241-100000@maxroach.lanl.gov> (raw)
In-Reply-To: <FC86BD40-A746-11D7-8B4F-000393D34A62@orthanc.ab.ca>

On Wed, 25 Jun 2003, Lyndon Nerenberg wrote:

> > This matters on Plan9
> > because it does raw accesses to probe the PCI space whereas other
> > operating systems
> > do BIOS calls to obtain that information.
>
> And FreeBSD finds the hardware just fine, using the BIOS interface.
>
> I now vaguely remember a discussion here a long while back about why
> the BIOS wasn't used for this. Was it to do with broken BIOS code?

There are lots of reasons not to use the bios, related to broken code,
broken tables, ... the list goes on. The one I care about is I don't
support those bios calls :-)

I prefer what Plan 9 does in this case to what FreeBSD does. More
portable.

ron



  parent reply	other threads:[~2003-06-25 20:32 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-06-25  3:47 Lyndon Nerenberg
2003-06-25 15:06 ` jmk
2003-06-25 19:09   ` Lyndon Nerenberg
2003-06-25 19:55   ` Lyndon Nerenberg
2003-06-25 20:10     ` David Presotto
2003-06-25 20:20       ` andrey mirtchovski
2003-06-25 20:35         ` jmk
2003-06-25 20:32       ` Lyndon Nerenberg
2003-06-25 20:32     ` ron minnich [this message]
2003-06-25 20:39       ` Lyndon Nerenberg
2003-06-25 20:42         ` Christopher Nielsen
2003-06-25 20:49         ` boyd, rounin
2003-06-25 21:04         ` ron minnich
2003-06-26  0:08           ` Lyndon Nerenberg
2003-06-25 20:41 jmk
2003-06-25 20:44 ` Lyndon Nerenberg

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