Re: [Qemu-devel][PATCH] Qemu image over raw devices

[Kevin Wolf <kwolf@suse.de>]

Shahar Frank schrieb:
> Kevin, Daniel,
> 
> What do you think is the right thing to do here?
> 
> Option one:
> 
> 1. I can suggest a new extension mechanism for QCOW2 (it can be even
> backwards compatible) and store the backing file format there
> 2. I can add a flag to qemu-img create to force backing file format
> (that is stored in the above extension).
> 
> Or:
> 
> Option two:
> 
> I can register qcow2 as a protocol and allow users to explicitly force
> qcow2 image logic.
> It is true that the ":" notation is still used, but as this notation is
> still required even for the drive option (vvfat, for example) it won't
> be the first to introduce it to the system.
> 
> I have a feeling you both prefer option one ;-)

I think I'm not really decided on that one. For me, the most important
thing is that you don't force users to rely on guessing. So while I
slightly tend towards the first option, I also wouldn't be opposed to
the second one.

Kevin