From owner-freebsd-xen@FreeBSD.ORG Wed May 30 16:40:46 2012 Return-Path: Delivered-To: freebsd-xen@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id AE4471065674 for ; Wed, 30 May 2012 16:40:46 +0000 (UTC) (envelope-from seanbru@yahoo-inc.com) Received: from mrout1-b.corp.bf1.yahoo.com (mrout1-b.corp.bf1.yahoo.com [98.139.253.104]) by mx1.freebsd.org (Postfix) with ESMTP id 5F4BB8FC19 for ; Wed, 30 May 2012 16:40:46 +0000 (UTC) Received: from [IPv6:::1] (rideseveral.corp.yahoo.com [10.73.160.231]) by mrout1-b.corp.bf1.yahoo.com (8.14.4/8.14.4/y.out) with ESMTP id q4UGeARO081418; Wed, 30 May 2012 09:40:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=yahoo-inc.com; s=cobra; t=1338396012; bh=v0iHjY5Bn02S2IIVIOt4GjQ7xiyQTW/eg0SMY1zJaAQ=; h=Subject:From:To:Cc:In-Reply-To:References:Content-Type:Date: Message-ID:Mime-Version:Content-Transfer-Encoding; b=kDGqhT3apy11fd8bHCmgqBvTWEYkAuNxxhk5+FIWuxu8VjcZ/4OmcE6bvIYT7sD4r j8F/wNPcUhNfOTB03xw8dQr5yu3KUUEDZAbDidDIUO3XXH6dZByXDkfFTxSlum0FN7 zWrXBRMkse3gpNAhF7uLvWhJj45oD0fWmINfu4i0= From: Sean Bruno To: Carsten Heesch In-Reply-To: <05D52D66-D523-446D-A34F-56A4004698AC@sysconfig.org.uk> References: <4FC3B195.8020007@laukamp.me> <4FC3C83B.503@laukamp.me> <20120528220305.GC16584@smp.if.uj.edu.pl> <4FC3FB04.8050500@laukamp.me> <20120528224815.GE16584@smp.if.uj.edu.pl> <4FC618DB.5060901@laukamp.me> <05D52D66-D523-446D-A34F-56A4004698AC@sysconfig.org.uk> Content-Type: text/plain; charset="UTF-8" Date: Wed, 30 May 2012 09:40:10 -0700 Message-ID: <1338396010.9051.3.camel@powernoodle-l7.corp.yahoo.com> Mime-Version: 1.0 X-Mailer: Evolution 2.32.1 FreeBSD GNOME Team Port Content-Transfer-Encoding: 7bit X-Milter-Version: master.31+4-gbc07cd5+ X-CLX-ID: 396011002 Cc: "freebsd-xen@freebsd.org" , Lukas Laukamp Subject: Re: FreeBSD Xen Dom0 Support X-BeenThere: freebsd-xen@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussion of the freebsd port to xen - implementation and usage List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 30 May 2012 16:40:46 -0000 On Wed, 2012-05-30 at 07:56 -0700, Carsten Heesch wrote: > However, if you intend to run 64bit, you are restricted to HVM (use > the XENHVM kernel to get better performance from the optimised device > drivers for HVM). > If you are planning on running 32bit, you can use PV. > I think that is still valid for 9.0. And mind you, PV is (or was?) > also limited to about 850M memory in the DomU. > > A couple of nits here, alc@ fixed the PV memory restrictions so the 850M limit isn't a thing anymore: FreeBSD ref9-xen32.freebsd.org 9.0-STABLE FreeBSD 9.0-STABLE #2 r231914: Mon Feb 20 05:30:49 PST 2012 sbruno@ref9-xen32.freebsd.org:/var/tmp/dumpster/scratch/sbruno-scratch/9/sys/XEN i386 [sbruno@ref9-xen32 ~]$ sysctl hw.physmem hw.physmem: 2136674304 And, I think, there is a 64bit PV config now in development at: http://svnweb.freebsd.org/base/projects/amd64_xen_pv/ This is prerequisite work for a dom0 on freebsd which is under development. Stay tuned, things are happening! Sean