From mboxrd@z Thu Jan 1 00:00:00 1970 From: Anthony Liguori Subject: Re: [PATCH 0/4] (Refactored) VHD Support Addition Date: Thu, 21 Jun 2007 13:15:12 -0500 Message-ID: <467AC030.4030803@codemonkey.ws> References: <467AB504.7040809@virtualiron.com> <20070621173518.GE13026@redhat.com> <467ABC1A.4010302@virtualiron.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <467ABC1A.4010302@virtualiron.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: Steve Ofsthun Cc: xen-devel@lists.xensource.com, "Daniel P. Berrange" , Ben Guthro List-Id: xen-devel@lists.xenproject.org Steve Ofsthun wrote: > Daniel P. Berrange wrote: >> On Thu, Jun 21, 2007 at 01:27:32PM -0400, Ben Guthro wrote: > >>> ### vdisk_tool ### >>> The vdisk_tool provides a means of creating, and converting vhd files. >>> Like libvdisk, it is designed with future support of additional formats >>> in mind, but currently only supports vhd. >> Why not just add vhd support to qemu's existing qemu-img tool, then it will >> support all image formats, right from the start, rather than inventing yet >> another tool :-( > > Well, when we started this, it wasn't clear we were going to be able to > publicly release any code in support of the VHD format. Microsoft later > relaxed the restrictions, and by that time the separate tool already > existed. We can investigate integrating the work into qemu-img. QEMU already supports VHD (it calls it VPC) and supported it long before Microsoft released any specs. QEMU supported VMDK before VMware release the specs for that too. Is there a particular feature of VHD/VPC that your code adds that QEMU didn't already support? Regards, Anthony Liguori >> Any changes to QEMU should be sent to the QEMU upstream mailing lists for >> review/inclusion too, otherwise the Xen fork gets even worse than it >> already is > > Agreed. > > Steve