From mboxrd@z Thu Jan  1 00:00:00 1970
From: Richard Weinberger <richard@nod.at>
Subject: Re: [RFC PATCH 00/11] an introduction of library operating system
 for Linux (LibOS)
Date: Tue, 24 Mar 2015 16:27:51 +0100
Message-ID: <55118277.5070909@nod.at>
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Cc: linux-arch@vger.kernel.org, arnd@arndb.de, corbet@lwn.net,
 cl@linux.com, penberg@kernel.org, rientjes@google.com,
 iamjoonsoo.kim@lge.com, akpm@linux-foundation.org,
 linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org,
 netdev@vger.kernel.org, linux-mm@kvack.org, jdike@addtoit.com,
 rusty@rustcorp.com.au, mathieu.lacage@gmail.com
To: Hajime Tazaki <tazaki@sfc.wide.ad.jp>
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Am 24.03.2015 um 16:24 schrieb Hajime Tazaki:
> I was thinking that such 'architectural' differences in core
> idea (like system call handling, execution model, process
> context design, etc) is better to have a different architecture
> even if some part of the code is similar.
> 
> Isn't it also the same to the other 'hardware-dependent'
> architectures' case like between arm and arm64 ?
> 
> of course I'm also happy to share the code between us,
> especially _pure_ userspace part like (virtual) NIC with
> tap or pcap because we also need that part, but we kept such
> code at an external codebase (i.e., linux-libos-tools).

I'd say you should try hard to re-use/integrate your work in arch/um.
With um we already have an architecture which targets userspace,
having two needs a very good justification.

Thanks,
//richard

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