Re: [Qemu-block] [PATCH v2 5/6] qemu-iotests: Test setting WCE with qdev

[Eric Blake]

On 07/05/2016 08:57 AM, Max Reitz wrote:

>> I'm not sure yet what the conclusion is. Change query-block to include
>> anonymous BBs that are owned by devices? A new query command? Add the
>> information to info qtree and whatever the QMP version of it is (if it
>> even exists)?
> 
> Well, since you are basically trying to purge the BB from the user's
> field of view, it would probably make sense to display all the BB-level
> information (like the writethrough mode) as part of the device
> information; that is, probably in info qtree. That information should
> then probably also include the node name of the root BDS, and the
> user/management application can find out all about that with
> query-named-block-nodes (although it'd probably makes sense to add a
> query-block-node command for a single node).

Or teach query-named-block-nodes to take an optional parameter for
filtering the results to a single node (either way is introspectible, so
I don't have a strong opinion which is nicer)

-- 
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org

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