From owner-freebsd-hackers@FreeBSD.ORG Fri Jun 6 21:14:21 2008 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 2C5601065687 for ; Fri, 6 Jun 2008 21:14:21 +0000 (UTC) (envelope-from peterjeremy@optushome.com.au) Received: from mail17.syd.optusnet.com.au (mail17.syd.optusnet.com.au [211.29.132.198]) by mx1.freebsd.org (Postfix) with ESMTP id C64998FC34 for ; Fri, 6 Jun 2008 21:14:20 +0000 (UTC) (envelope-from peterjeremy@optushome.com.au) Received: from server.vk2pj.dyndns.org (c122-106-215-175.belrs3.nsw.optusnet.com.au [122.106.215.175]) by mail17.syd.optusnet.com.au (8.13.1/8.13.1) with ESMTP id m56LE9VE032179 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Sat, 7 Jun 2008 07:14:13 +1000 Received: from server.vk2pj.dyndns.org (localhost.vk2pj.dyndns.org [127.0.0.1]) by server.vk2pj.dyndns.org (8.14.2/8.14.2) with ESMTP id m56LE9mo079970; Sat, 7 Jun 2008 07:14:09 +1000 (EST) (envelope-from peter@server.vk2pj.dyndns.org) Received: (from peter@localhost) by server.vk2pj.dyndns.org (8.14.2/8.14.2/Submit) id m56LE69F079969; Sat, 7 Jun 2008 07:14:06 +1000 (EST) (envelope-from peter) Date: Sat, 7 Jun 2008 07:14:06 +1000 From: Peter Jeremy To: sylvain@desbureaux.fr Message-ID: <20080606211406.GN67629@server.vk2pj.dyndns.org> References: <652bbbf50806060526j5956c518u6b7e81756f187c38@mail.gmail.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="7uYPyRQQ5N0D02nI" Content-Disposition: inline In-Reply-To: <652bbbf50806060526j5956c518u6b7e81756f187c38@mail.gmail.com> X-PGP-Key: http://members.optusnet.com.au/peterjeremy/pubkey.asc User-Agent: Mutt/1.5.17 (2007-11-01) Cc: freebsd-hackers@freebsd.org Subject: Re: virtio drivers for freebsd X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 06 Jun 2008 21:14:21 -0000 --7uYPyRQQ5N0D02nI Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On 2008-Jun-06 14:26:24 +0200, Sylvain Desbureaux wrote: >I'm currently using linux KVM as an hypervisor and I would like to use >an old freebsd4 machine as a guest. I agree that virtualising FreeBSD is useful but I suspect your chances of getting guest patches for FreeBSD 4.x are very low. FreeBSD 4.x is no longer supported by the FreeBSD project and there are significant changes in the kernel architecture between 4.x and later versions. For new features to be added to FreeBSD, they must be first added to the latest version and then back-ported to older versions - the backport to 4.x would probably require significant effort. >KVM has now special drivers, based on the virtio specifications. These >drivers are compiled for windows and linux but unfortunately not for >BSD. I think that they are pretty simple in the guest side (75kb of >code for linux for example, for network and block device) but I'm not >very good in kernel driver compilation. Note that FreeBSD does not have block-mode devices. --=20 Peter Jeremy Please excuse any delays as the result of my ISP's inability to implement an MTA that is either RFC2821-compliant or matches their claimed behaviour. --7uYPyRQQ5N0D02nI Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.9 (FreeBSD) iEYEARECAAYFAkhJqJ4ACgkQ/opHv/APuId+MgCglHA6MO6Al2mddepu7wrhKkIL 5gUAn3D6Vg9KnyGffQz/ByGWr7FMYi8y =kLEX -----END PGP SIGNATURE----- --7uYPyRQQ5N0D02nI--