From: Nate Lawson <nate-Y6VGUYTwhu0@public.gmane.org>
To: "Emmanuel Thomé" <Emmanuel.Thome-MZpvjPyXg2s@public.gmane.org>
Cc: acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
Subject: Re: Re: s3_late_bios
Date: Tue, 09 Nov 2004 12:26:14 -0800 [thread overview]
Message-ID: <419127E6.3000603@root.org> (raw)
In-Reply-To: <20041109125522.GA8015-xkTd+U360DcAs8EywTwl9A@public.gmane.org>
Emmanuel Thomé wrote:
> On Mon, Nov 08, 2004 at 01:53:25PM -0800, Nate Lawson wrote:
>>Why the switch to real mode to run the BIOS call? Can't this be done
>>from vm86 mode?
>
> Yes it can, at least I think so. You're welcome to tweak this to do it in
> a vm86 mode if you like.
I mostly work on FreeBSD and since it has clean vm86 support routines,
it doesn't involve any inline assembly to do the lcall there. I assume
Linux has something similar. I think re-entering real mode and
overloading the resume asm code to run just one instruction is a bit of
a hack.
--
Nate
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next prev parent reply other threads:[~2004-11-09 20:26 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-11-08 14:49 s3_late_bios Emmanuel Thomé
[not found] ` <20041108144947.GA31267-xkTd+U360DcAs8EywTwl9A@public.gmane.org>
2004-11-08 21:35 ` s3_late_bios Pavel Machek
[not found] ` <20041108213558.GB4607-I/5MKhXcvmPrBKCeMvbIDA@public.gmane.org>
2004-11-08 21:53 ` s3_late_bios Nate Lawson
[not found] ` <418FEAD5.1000007-Y6VGUYTwhu0@public.gmane.org>
2004-11-09 12:55 ` Emmanuel Thomé
[not found] ` <20041109125522.GA8015-xkTd+U360DcAs8EywTwl9A@public.gmane.org>
2004-11-09 20:26 ` Nate Lawson [this message]
[not found] ` <419127E6.3000603-Y6VGUYTwhu0@public.gmane.org>
2004-11-09 20:43 ` Matthew Garrett
2004-11-10 7:20 ` Emmanuel Thomé
[not found] ` <20041110072003.GA13561-xkTd+U360DcAs8EywTwl9A@public.gmane.org>
2004-11-10 11:56 ` Matthew Garrett
2004-11-10 14:11 ` s3_late_bios ole.rohne-vJEk5272eHo
2004-11-10 16:25 ` s3_late_bios Nate Lawson
2004-11-10 13:16 ` s3_late_bios ole.rohne-vJEk5272eHo
2004-11-08 23:09 ` s3_late_bios Greg
[not found] ` <3195717504110815096a527710-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2004-11-09 12:56 ` s3_late_bios Emmanuel Thomé
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