From mboxrd@z Thu Jan  1 00:00:00 1970
Received: from eggs.gnu.org ([208.118.235.92]:49945)
	by lists.gnu.org with esmtp (Exim 4.71)
	(envelope-from <paolo.bonzini@gmail.com>) id 1SUgV2-0004I3-GI
	for qemu-devel@nongnu.org; Wed, 16 May 2012 11:50:56 -0400
Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)
	(envelope-from <paolo.bonzini@gmail.com>) id 1SUgUv-0005pR-E0
	for qemu-devel@nongnu.org; Wed, 16 May 2012 11:50:52 -0400
Received: from mail-pz0-f45.google.com ([209.85.210.45]:63927)
	by eggs.gnu.org with esmtp (Exim 4.71)
	(envelope-from <paolo.bonzini@gmail.com>) id 1SUgUv-0005oe-51
	for qemu-devel@nongnu.org; Wed, 16 May 2012 11:50:45 -0400
Received: by dadv2 with SMTP id v2so1494501dad.4
	for <qemu-devel@nongnu.org>; Wed, 16 May 2012 08:50:43 -0700 (PDT)
Sender: Paolo Bonzini <paolo.bonzini@gmail.com>
Message-ID: <4FB3CCC7.4070701@redhat.com>
Date: Wed, 16 May 2012 17:50:31 +0200
From: Paolo Bonzini <pbonzini@redhat.com>
MIME-Version: 1.0
References: <1336998923-30144-1-git-send-email-gleb@redhat.com>
	<1336998923-30144-2-git-send-email-gleb@redhat.com>
	<20120515014319.GA21845@morn.localdomain>
	<20120515080605.GD32036@redhat.com>
	<20120515231810.GA674@morn.localdomain>
	<20120516134657.GU32036@redhat.com>
In-Reply-To: <20120516134657.GU32036@redhat.com>
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: 7bit
Subject: Re: [Qemu-devel] [PATCH 2/2] Get system state configuration from
 QEMU and patcth DSDT with it.
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: Gleb Natapov <gleb@redhat.com>
Cc: Kevin O'Connor <kevin@koconnor.net>, seabios@seabios.org, qemu-devel@nongnu.org

Il 16/05/2012 15:46, Gleb Natapov ha scritto:
> I saw that, but I don't get why doing it this way instead of defining
> the object in AML and patching it? I can define Name(S4VL, 0x2) and path
> 0x2 to whatever QEMU wants me to use, or I can patch Package directly
> like I did.
> 

Can we build an SSDT that includes the contents of fw_cfg (e.g.
FW_CFG_SIGNATURE at offset 0, FW_CFG_UUID at offset 4, FW_CFG_NOGRAPHIC
at offset 16... the entry <-> offset mapping and the defaults would be
part of SeaBIOS), and then read that data from normal DSDT methods?

That would be similar to Gerd's patch, but without letting the OSPM use
the real fw_cfg device.

Paolo