From owner-freebsd-xen@FreeBSD.ORG Wed Dec 3 20:42:52 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 C7AA81065675 for ; Wed, 3 Dec 2008 20:42:52 +0000 (UTC) (envelope-from mat.macy@gmail.com) Received: from rv-out-0506.google.com (rv-out-0506.google.com [209.85.198.238]) by mx1.freebsd.org (Postfix) with ESMTP id 946F18FC08 for ; Wed, 3 Dec 2008 20:42:51 +0000 (UTC) (envelope-from mat.macy@gmail.com) Received: by rv-out-0506.google.com with SMTP id b25so3549328rvf.43 for ; Wed, 03 Dec 2008 12:42:51 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:message-id:date:from:sender :to:subject:cc:in-reply-to:mime-version:content-type :content-transfer-encoding:content-disposition:references :x-google-sender-auth; bh=vuhT90L8ugbBDZiGrmKBneYNQm8H+hi4bZRHJ7jHRxo=; b=bBOq93u/Ah7sET0omQaTK/zxRlrvy+bukRkWfxmFyeHgVnH831eNW0XKDjJ9Y5EBkN F+EPUTNcU5+ARBqvubUSXjXri1PtcrbzHLiRRTveaD+QSrT7UMYdPnL/DTzYOZ8DXyH2 LyUIRCiWYd2ZUlRdv4Ys32rQANPB/ZLLB+BZc= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:sender:to:subject:cc:in-reply-to:mime-version :content-type:content-transfer-encoding:content-disposition :references:x-google-sender-auth; b=Bju+yLmdaL/sJwr4OitpiwNDaCH338e0ejliPUWQECkiblcWdr7BZen+duFVu24l6o Zy4lBf+LUx7rcD0gYOno7xr1SBwm2SoHomTNIE9t1CHCNmDzmgAWaNYLBIzznD5bfSkT q7oQtDs7/D6+2QLofAYHzuNWWmDTmUWttnQu4= Received: by 10.141.13.16 with SMTP id q16mr6493377rvi.272.1228336971708; Wed, 03 Dec 2008 12:42:51 -0800 (PST) Received: by 10.141.142.3 with HTTP; Wed, 3 Dec 2008 12:42:51 -0800 (PST) Message-ID: <3c1674c90812031242s759dfadbrf469392e8d8e8980@mail.gmail.com> Date: Wed, 3 Dec 2008 12:42:51 -0800 From: "Kip Macy" Sender: mat.macy@gmail.com To: "Doug Rabson" In-Reply-To: <4D700338-26B5-48D0-9637-C1329858ED13@rabson.org> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <4389C4C1-0EEB-4841-8F02-DC44BBC223F4@rabson.org> <9bbcef730812011045t4769cb76g2028c5f9c39af524@mail.gmail.com> <96346214-38CC-4EA9-97DA-C5C1EE358EDA@rabson.org> <1228332468.1157.16.camel@RabbitsDen> <4D700338-26B5-48D0-9637-C1329858ED13@rabson.org> X-Google-Sender-Auth: 6f05d506ccdb2d54 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 20:42:52 -0000 Real mode emulation wasn't fixed until 3.3 in the mercurial sources. Presumably the Cambridge folks backported the necessary fixes for their supported products. -Kip On Wed, Dec 3, 2008 at 12:38 PM, Doug Rabson wrote: > > 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. > > _______________________________________________ > freebsd-xen@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-xen > To unsubscribe, send any mail to "freebsd-xen-unsubscribe@freebsd.org" > -- If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis