Re: [libvirt] [Qemu-devel] [PATCH v2] Add support for fd: protocol

> It would need careful explanation in the management tool author's guide, > yes. > > The main advantage is generality. It doesn't assume that a file format > has just one backing file, and doesn't require new syntax wherever a > file is referred to indirectly. FWIW, with blockdev, we need options to control this all anyway. If you go back to my QCFG proposal, the parameters would actually be format specific, so if we had: -block file=fd:4,format=fancypantsformat,part0=hd0-back.part1,part1=hd0-back.part2...