From mboxrd@z Thu Jan  1 00:00:00 1970
From: Anthony Liguori <anthony@codemonkey.ws>
Subject: Re: [Qemu-devel] KVM call minutes for Feb 8
Date: Tue, 08 Feb 2011 15:11:22 -0600
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Cc: Markus Armbruster <armbru@redhat.com>,
	Chris Wright <chrisw@redhat.com>, qemu-devel@nongnu.org,
	kvm@vger.kernel.org
To: Peter Maydell <peter.maydell@linaro.org>
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On 02/08/2011 01:02 PM, Peter Maydell wrote:
> On 8 February 2011 17:13, Markus Armbruster<armbru@redhat.com>  wrote:
>    
>> As far as qdev's concerned, I can see two kinds of to-dos:
>>
>> * Further develop qdev so that more of the machine init code can becomes
>>   qdev declarations.  Specific ideas welcome.  Patches even more, as
>>   always.
>>
>> * Convert the remaining devices.  They are typically used only with
>>   oddball machines, which makes the conversion hard to test for anyone
>>   who's not already using them.
>>
>>   I've said this before: at some point in time (sooner rather than
>>   later, if you ask me), we need to shoot the stragglers.  I'm pretty
>>   optimistic that any victims worth keeping will receive timely
>>   attention then.
>>      
> So on IRC pbrook wrote:
> <pbrook>  So we have a bunch of devices that nominally claim to use the
> qdev infrastructure, but are still making assumptions that qdev was
> supposed to remove, so break horribly when you actually try to use it
> as intended.
>
> ...and my question is: where is the documentation on how to do
> a good conversion of a device to qdev, how it works, what the
> assumptions you can/can't make are, etc ?

It's basically good OOP modelling and the way qdev is structured today 
makes it very easy to do bad OOP modelling.

Regards,

Anthony Liguori

>   I can't see anything
> relevant in the source tree or on the website, but maybe I'm just
> looking in the wrong places...
>
> -- PMM
>
>    


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Date: Tue, 08 Feb 2011 15:11:22 -0600
From: Anthony Liguori <anthony@codemonkey.ws>
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Subject: Re: [Qemu-devel] KVM call minutes for Feb 8
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To: Peter Maydell <peter.maydell@linaro.org>
Cc: Chris Wright <chrisw@redhat.com>, Markus Armbruster <armbru@redhat.com>, kvm@vger.kernel.org, qemu-devel@nongnu.org

On 02/08/2011 01:02 PM, Peter Maydell wrote:
> On 8 February 2011 17:13, Markus Armbruster<armbru@redhat.com>  wrote:
>    
>> As far as qdev's concerned, I can see two kinds of to-dos:
>>
>> * Further develop qdev so that more of the machine init code can becomes
>>   qdev declarations.  Specific ideas welcome.  Patches even more, as
>>   always.
>>
>> * Convert the remaining devices.  They are typically used only with
>>   oddball machines, which makes the conversion hard to test for anyone
>>   who's not already using them.
>>
>>   I've said this before: at some point in time (sooner rather than
>>   later, if you ask me), we need to shoot the stragglers.  I'm pretty
>>   optimistic that any victims worth keeping will receive timely
>>   attention then.
>>      
> So on IRC pbrook wrote:
> <pbrook>  So we have a bunch of devices that nominally claim to use the
> qdev infrastructure, but are still making assumptions that qdev was
> supposed to remove, so break horribly when you actually try to use it
> as intended.
>
> ...and my question is: where is the documentation on how to do
> a good conversion of a device to qdev, how it works, what the
> assumptions you can/can't make are, etc ?

It's basically good OOP modelling and the way qdev is structured today 
makes it very easy to do bad OOP modelling.

Regards,

Anthony Liguori

>   I can't see anything
> relevant in the source tree or on the website, but maybe I'm just
> looking in the wrong places...
>
> -- PMM
>
>