Re: [Qemu-devel] BlockDriverState stack and BlockListeners

[Kevin Wolf]

Am 21.02.2012 17:19, schrieb Markus Armbruster:
>>>> Oh, and just to open another can of worms: We should probably design in
>>>> the notion of media (which can be ejected etc.) and drives (which always
>>>> stay there). We don't have a clean separation today.
>>>
>>> The "closed BDS means no media" thing works, but it's odd.
>>
>> I'm more talking about data that belongs to the media, like geometry.
>> This came up recently with Hervé's floppy patches.
> 
> Is geometry relevant to anything but floppies and really small disks
> being accessed via really old interfaces?

Not sure what it's actually used for, but even virtio-blk does have a
geometry.

But is it really only geometry? I think the read-only flag belongs to
the medium as well. There are probably more candidates.

Kevin