[libvirt] Curl/HTTP block device

[Daniel P. Berrange]

On Tue, Aug 16, 2011 at 11:02:23AM -0600, Eric Blake wrote:
> On 08/12/2011 04:31 AM, Radek Hladik wrote:
> >Hi,
> >I've noticed newer version of curl in last qemu changelog. It seems that
> >its needed for curl block device. Unfortunatelly, I was not able to find
> >out more. I tried to look into qemu source code and to some patches but
> >I am not much wiser.
> >As I understand it, qemu could be able to use a curl compatible URL as
> >block device. Probably only in readonly mode but it still would be very
> >usefull for i.e. ISO images.
> >Can anyone point me in the right direction and more importantly, is this
> >feature available via Libvirt?
> 
> I believe you are correct that curl block devices are not yet
> supported in libvirt, but patches would be welcome.

We had previously rejected the idea of curl block devices as a crazy
idea, but since we have now accepted config of NBD, Sheepdog, and
other network based block devices, we can't justify leaving out
the curl ones. So any patches for curl block devs are welcome.

Daniel
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