Re: [Qemu-devel] [PULL for-2.4 3/7] block/nfs: add support for setting debug level

[Max Reitz <mreitz@redhat.com>]

On 07.07.2015 15:40, Kevin Wolf wrote:
> Am 07.07.2015 um 15:13 hat Stefan Hajnoczi geschrieben:
>> On Tue, Jul 7, 2015 at 1:50 PM, Peter Lieven <pl@kamp.de> wrote:
>>> Am 07.07.2015 um 14:08 schrieb Stefan Hajnoczi:
>>>>
>>>> From: Peter Lieven <pl@kamp.de>
>>>>
>>>> upcoming libnfs versions will support logging debug messages. Add
>>>> support for it in qemu through a per-drive option.
>>>>
>>>> Examples:
>>>>    qemu -drive if=virtio,file=nfs://...,file.debug=2
>>>>    qemu-img create -o debug=2 nfs://... 10G
>>>>
>>>> Signed-off-by: Peter Lieven <pl@kamp.de>
>>>> Reviewed-by: Fam Zheng <famz@redhat.com>
>>>> Message-id: 1436251847-16875-1-git-send-email-pl@kamp.de
>>>> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
>>>
>>>
>>> Thanks for pulling this.
>>>
>>> Question: Is it possible to insert a CDROM other than with the 'change'
>>> command?
>>> The change command obviously does not support file.debug parameters...
>>
>> Not that I'm aware of.
>>
>> You may be able to hotplug SCSI CD-ROM drives, but that's not the same
>> as ejecting/inserting CD-ROM media.
>>
>> Sounds like an item for the block layer todo list:
>> http://qemu-project.org/Features/Block/Todo
>
> I think Max' media handling series might implement this or at least go a
> step in that direction. CCing Max.

Since with that series, you can insert any BDS as a medium, yes, it 
naturally does.

But for now, wouldn't JSON file names work?

Max