From owner-freebsd-xen@FreeBSD.ORG Wed Dec 3 20:39:01 2008 Return-Path: Delivered-To: freebsd-xen@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 5BDC11065676 for ; Wed, 3 Dec 2008 20:39:01 +0000 (UTC) (envelope-from dfr@rabson.org) Received: from itchy.rabson.org (unknown [IPv6:2002:50b1:e8f2:1::143]) by mx1.freebsd.org (Postfix) with ESMTP id 1373E8FC12 for ; Wed, 3 Dec 2008 20:39:01 +0000 (UTC) (envelope-from dfr@rabson.org) Received: from [IPv6:2001:470:909f:1:21b:63ff:feb8:5abc] (unknown [IPv6:2001:470:909f:1:21b:63ff:feb8:5abc]) by itchy.rabson.org (Postfix) with ESMTP id E52923FAB; Wed, 3 Dec 2008 20:38:59 +0000 (GMT) Message-Id: <4D700338-26B5-48D0-9637-C1329858ED13@rabson.org> From: Doug Rabson To: Alexandre Sunny Kovalenko In-Reply-To: <1228332468.1157.16.camel@RabbitsDen> Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes Content-Transfer-Encoding: 7bit Mime-Version: 1.0 (Apple Message framework v929.2) Date: Wed, 3 Dec 2008 20:38:59 +0000 References: <4389C4C1-0EEB-4841-8F02-DC44BBC223F4@rabson.org> <9bbcef730812011045t4769cb76g2028c5f9c39af524@mail.gmail.com> <96346214-38CC-4EA9-97DA-C5C1EE358EDA@rabson.org> <1228332468.1157.16.camel@RabbitsDen> X-Mailer: Apple Mail (2.929.2) Cc: freebsd-xen@freebsd.org Subject: Re: Xen stuff 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, 03 Dec 2008 20:39:01 -0000 On 3 Dec 2008, at 19:27, Alexandre Sunny Kovalenko wrote: > > On Mon, 2008-12-01 at 21:54 +0000, Doug Rabson wrote: >> On 1 Dec 2008, at 18:45, Ivan Voras wrote: >> >>> 2008/12/1 Doug Rabson : >>>> I will be working on improving Xen support in FreeBSD for the new >>>> few >>> >>> Great! >>> >>>> months. My main goal is to add support for native Xen drivers to an >>>> amd64 >>>> kernel which is running in Xen's HVM mode. These drivers will take >>>> over from >>>> the slow emulated devices and provide most of the performance >>>> benefits of a >>>> paravirtualised kernel. I'm initially going to be supporting >>>> FreeBSD 6.x but >>>> I will port it all forward to head and 7.x when it works properly. >>> >>> For the not-quite-yet-initiated : does this mean you're working on >>> paravirtualized drivers for Xen dom-U ("guest" case)? >> >> Sort of. The latest versions of Xen support something called HVM mode >> which allows it to boot a completely unmodified guest OS using >> emulated devices in a similar way to e.g. VMware Fusion. It is then >> possible to incrementally add Xen-aware paravirtualised drivers which >> can replace the emulated ones and which perform better. This is how >> they support Windows under Xen. > Did you get to run FreeBSD in HVM mode? What version of Xen, and who > was > playing the dom0? > > The reason for the question is that I have patchy experience with HVM: > while I have Windows XP Professional running happily, OpenSolaris > 2008.5 > would lock up on the regular basis. > > I am running Xen 3.2.1 with OpenSuse x86_64 11.0 in the dom0. I'm running XenServer 5.0 which is (I think) running a linux-2.6.18 kernel with roughly xen-3.2.2.