From mboxrd@z Thu Jan  1 00:00:00 1970
Received: from eggs.gnu.org ([208.118.235.92]:44348)
	by lists.gnu.org with esmtp (Exim 4.71)
	(envelope-from <aliguori@us.ibm.com>) id 1SPLTi-00011R-3R
	for qemu-devel@nongnu.org; Tue, 01 May 2012 18:23:27 -0400
Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)
	(envelope-from <aliguori@us.ibm.com>) id 1SPLTg-0002UL-FR
	for qemu-devel@nongnu.org; Tue, 01 May 2012 18:23:25 -0400
Received: from e34.co.us.ibm.com ([32.97.110.152]:40168)
	by eggs.gnu.org with esmtp (Exim 4.71)
	(envelope-from <aliguori@us.ibm.com>) id 1SPLTg-0002Ti-8k
	for qemu-devel@nongnu.org; Tue, 01 May 2012 18:23:24 -0400
Received: from /spool/local
	by e34.co.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only!
	Violators will be prosecuted
	for <qemu-devel@nongnu.org> from <aliguori@us.ibm.com>;
	Tue, 1 May 2012 16:23:19 -0600
Received: from d03relay02.boulder.ibm.com (d03relay02.boulder.ibm.com
	[9.17.195.227])
	by d03dlp02.boulder.ibm.com (Postfix) with ESMTP id EBF513E4004F
	for <qemu-devel@nongnu.org>; Tue,  1 May 2012 16:23:15 -0600 (MDT)
Received: from d03av06.boulder.ibm.com (d03av06.boulder.ibm.com [9.17.195.245])
	by d03relay02.boulder.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id
	q41MNFtX169664
	for <qemu-devel@nongnu.org>; Tue, 1 May 2012 16:23:15 -0600
Received: from d03av06.boulder.ibm.com (loopback [127.0.0.1])
	by d03av06.boulder.ibm.com (8.14.4/8.13.1/NCO v10.0 AVout) with ESMTP
	id q41MNqna030822
	for <qemu-devel@nongnu.org>; Tue, 1 May 2012 16:23:52 -0600
Message-ID: <4FA06251.3060400@us.ibm.com>
Date: Tue, 01 May 2012 17:23:13 -0500
From: Anthony Liguori <aliguori@us.ibm.com>
MIME-Version: 1.0
References: <1335896294-9530-1-git-send-email-aliguori@us.ibm.com>
	<1335896294-9530-4-git-send-email-aliguori@us.ibm.com>
	<4FA033EC.1050800@suse.de> <4FA0497D.3060103@us.ibm.com>
	<4FA04B0E.5040500@suse.de> <4FA04C23.4070403@us.ibm.com>
	<CAFEAcA9Mpd_A3VGukmNz2Xe1Hq33=1xmVsmKBJbfxCRBvydTAA@mail.gmail.com>
	<4FA05D1D.7080905@us.ibm.com> <4FA05FCA.2040408@redhat.com>
In-Reply-To: <4FA05FCA.2040408@redhat.com>
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: 7bit
Subject: Re: [Qemu-devel] [PATCH 03/14] qdev: add qdev_add_properties
List-Id: <qemu-devel.nongnu.org>
List-Unsubscribe: <https://lists.nongnu.org/mailman/options/qemu-devel>,
	<mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>
List-Archive: <http://lists.nongnu.org/archive/html/qemu-devel>
List-Post: <mailto:qemu-devel@nongnu.org>
List-Help: <mailto:qemu-devel-request@nongnu.org?subject=help>
List-Subscribe: <https://lists.nongnu.org/mailman/listinfo/qemu-devel>,
	<mailto:qemu-devel-request@nongnu.org?subject=subscribe>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: qemu-devel@nongnu.org, Peter Maydell <peter.maydell@linaro.org>, Wanpeng Li <liwp@linux.vnet.ibm.com>, =?UTF-8?B?QW5kcmVhcyBGw6RyYmVy?= <afaerber@suse.de>

On 05/01/2012 05:12 PM, Paolo Bonzini wrote:
> Il 02/05/2012 00:01, Anthony Liguori ha scritto:
>>
>> There's magic in the qdev layer now to decide whether a Property in the
>> array of properties becomes a legacy or static property (it's only ever
>> exposed as one type).
>
> I don't think this is true: a legacy property always has a static
> counterpart.  The magic (really just a fallback) is to decide whether
> -device<type>,<prop>=<value>  will use the legacy property or a string
> visitor + a static property.

Yes, I mispoke.  All legacy properties are static properties but not all static 
properties are legacy (IIUC).

The exception is PROP_PTR which is always a legacy but never a static.

So there is quite a bit of magic.

Regards,

Anthony Liguori

>
> Paolo
>