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[Xen-devel] Re: [PATCH 0/4] (Refactored) VHD Support Addition
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?
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
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