From: Jonathan Larmour <jlarmour@redhat.com>
To: Li Xinghua <ahwa@fudan.edu>
Cc: "ecos-discuss@sources.redhat.com" <ecos-discuss@sources.redhat.com>
Subject: Re: [ECOS] Porting to 80386ex...
Date: Mon, 26 Feb 2001 11:13:00 -0000 [thread overview]
Message-ID: <3A9AAADD.50A4FC09@redhat.com> (raw)
In-Reply-To: <200102250307.TAA14041@cygnus.com>
Li Xinghua wrote:
>
> I want to run ecos on a custom-made 386ex board.
> After I have searched the maillist archive, the porting seems a troublesome thing .The similar question had been asked several times, but no reply. I have not much confidence to complete this porting , though it is challenging.
> Fortunately , thanks to Patrick O'Grady, there is PC platform HAL porting now. It is a helpful reference to my job. I am looking forward to help and advice given .
Be sure to use the sources from anonymous CVS. This includes Patrick's PC
HAL.
One consideration - there is a possibility that Red Hat may be making some
improvements to the x86 support (and we will certainly be including the
work Fabrice did for PCI and RedBoot support). Some of the changes may be
quite major - and will basically invalidate the current sources. However it
is not clear at this time whether Red Hat will be doing this for certain
:-/. The only way to guarantee support for you soon in the public sources
would be to contact Red Hat sales about helping you doing the port. If you
are interested, contact ecos-info@redhat.com
> I also have some questions about 386EX processor. If 386ex works in protected mode, is it compatible with i386 ?
> Then if 386ex runs in System Mangement Mode, is it a architecture HAL porting , or just a platform HAL porting ,since there are additional registers.
By this do you mean ring 0 versus ring1/2 ?
Jifl
--
Red Hat, Rustat House, Clifton Road, Cambridge, UK. Tel: +44 (1223) 271062
Maybe this world is another planet's Hell -Aldous Huxley || Opinions==mine
next parent reply other threads:[~2001-02-26 11:13 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <200102250307.TAA14041@cygnus.com>
2001-02-26 11:13 ` Jonathan Larmour [this message]
2001-02-26 11:23 ` Lewin A.R.W. Edwards
2001-02-24 19:06 Li Xinghua
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