Re: [Qemu-devel] [PATCH] qdev: obey no_user

[Anthony Liguori <aliguori@us.ibm.com>]

Christian Borntraeger <borntraeger@de.ibm.com> writes:

> On 07/01/13 20:32, Anthony Liguori wrote:
>> Christian Borntraeger <borntraeger@de.ibm.com> writes:
>> 
>>> since
>>>
>>> commit 18b6dade8c0799c48f5c5e124b8c407cd5e22e96
>>> qdev: refactor device creation to allow bus_info to be set only in class
>>>
>>> A user can specify a device that is no_user.
>>> For example on my i386 box, I can add a 2nd kvmvapic device.
>>>
>>> This patch checks for no-user and rejects the device_add.
>>>
>>> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
>> 
>> I specifically broke this when QOM was introduced because no_user
>> precludes a management tool from constructing a machine directlt.
>
> Breaking it but leaving it in the code doesnt seem to be the right thing.
> The commit message from 18b6dade doesnt give any hint that this is now
> broken and nobody audited the callers of no_user that they handle things
> gracefully.
>
> So whats the plan? Totally remove no_user tree-wide?

One of the reasons I left no_user is that it's exposed to users via
'info qdm'.  I don't think it matters anymore so we can probably safely
remove it.

Regards,

Anthony Liguori

>
> Christian