From mboxrd@z Thu Jan  1 00:00:00 1970
Received: from eggs.gnu.org ([208.118.235.92]:51422)
	by lists.gnu.org with esmtp (Exim 4.71)
	(envelope-from <paolo.bonzini@gmail.com>) id 1SSNtA-0006Tj-1a
	for qemu-devel@nongnu.org; Thu, 10 May 2012 03:34:17 -0400
Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)
	(envelope-from <paolo.bonzini@gmail.com>) id 1SSNt0-0006bU-6r
	for qemu-devel@nongnu.org; Thu, 10 May 2012 03:34:15 -0400
Received: from mail-pb0-f45.google.com ([209.85.160.45]:51222)
	by eggs.gnu.org with esmtp (Exim 4.71)
	(envelope-from <paolo.bonzini@gmail.com>) id 1SSNsz-0006ap-UD
	for qemu-devel@nongnu.org; Thu, 10 May 2012 03:34:06 -0400
Received: by pbbro12 with SMTP id ro12so2089923pbb.4
	for <qemu-devel@nongnu.org>; Thu, 10 May 2012 00:34:03 -0700 (PDT)
Sender: Paolo Bonzini <paolo.bonzini@gmail.com>
Message-ID: <4FAB6F65.80708@redhat.com>
Date: Thu, 10 May 2012 09:33:57 +0200
From: Paolo Bonzini <pbonzini@redhat.com>
MIME-Version: 1.0
References: <4FA818F9.90104@msgid.tls.msk.ru> <4FA8AD11.6060905@redhat.com>
	<4FA8B2FE.60303@msgid.tls.msk.ru> <4FA8C07A.4090505@redhat.com>
	<4FA95E3A.9080603@msgid.tls.msk.ru>
	<20120509080242.GN15960@redhat.com>
	<4FAA96DF.3090006@msgid.tls.msk.ru>
In-Reply-To: <4FAA96DF.3090006@msgid.tls.msk.ru>
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: 7bit
Subject: Re: [Qemu-devel] ahci drive: how to make it non-bootable?
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: Michael Tokarev <mjt@tls.msk.ru>
Cc: Gerd Hoffmann <kraxel@redhat.com>, Gleb Natapov <gleb@redhat.com>, qemu-devel <qemu-devel@nongnu.org>

Il 09/05/2012 18:10, Michael Tokarev ha scritto:
> 
> The old hacks which were prematurely removed from qemu-kvm makes the
> life easier for the _user_, which is the main target of the software.
> I'd love to stop using them but sometimes it is not possible.  With
> this extboot thing, qemu-kvm dropped ability to boot from SCSI for
> example, and it turns out there are quite some users of this interface
> exists - despite the fact SCSI is broken, there is a proprietary
> bootrom exists etc -- we just broke users setups without providing
> viable alternative, which, to my view, is unacceptable.

You were using a fork, and this implies some risks of things being
broken when upstream decides to do differently (e.g. extboot vs.
implementing boot support in SeaBIOS).

As far as I know, no feature was removed from upstream QEMU.

Paolo