From mboxrd@z Thu Jan  1 00:00:00 1970
Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43)
	id 1McrqP-0005Yo-IR
	for qemu-devel@nongnu.org; Sun, 16 Aug 2009 22:21:09 -0400
Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43)
	id 1McrqK-0005Yc-Jx
	for qemu-devel@nongnu.org; Sun, 16 Aug 2009 22:21:08 -0400
Received: from [199.232.76.173] (port=34345 helo=monty-python.gnu.org)
	by lists.gnu.org with esmtp (Exim 4.43) id 1McrqK-0005YY-F8
	for qemu-devel@nongnu.org; Sun, 16 Aug 2009 22:21:04 -0400
Received: from mail.13thfloor.at ([213.145.232.33]:58753)
	by monty-python.gnu.org with esmtps
	(TLS-1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.60)
	(envelope-from <herbert@13thfloor.at>) id 1McrqK-00034R-57
	for qemu-devel@nongnu.org; Sun, 16 Aug 2009 22:21:04 -0400
Date: Mon, 17 Aug 2009 04:20:24 +0200
From: Herbert Poetzl <herbert@13thfloor.at>
Message-ID: <20090817022024.GE1025@MAIL.13thfloor.at>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
Subject: [Qemu-devel] i8259 defaults wrong?
List-Id: qemu-devel.nongnu.org
List-Unsubscribe: <http://lists.nongnu.org/mailman/listinfo/qemu-devel>,
	<mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>
List-Archive: <http://lists.gnu.org/pipermail/qemu-devel>
List-Post: <mailto:qemu-devel@nongnu.org>
List-Help: <mailto:qemu-devel-request@nongnu.org?subject=help>
List-Subscribe: <http://lists.nongnu.org/mailman/listinfo/qemu-devel>,
	<mailto:qemu-devel-request@nongnu.org?subject=subscribe>
To: kvm@vger.kernel.org, qemu-devel@nongnu.org


Greetings!

looking at the i8259 implementation found in qemu
as well as in the in-kernel kvm implementation, I
see that on pic_reset() special_fully_nested_mode
is set to zero, but the intel(r) 8259A manual says
on page 15:

  Fully Nested Mode
 
  This mode is entered after initialization unless
  another mode is programmed.

any comments are appreciated, a patch should be
trivial, but I'd gladly submit one if requested.

TIA,
Herbert