From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.33) id 1CQ6WS-00048z-2d for qemu-devel@nongnu.org; Fri, 05 Nov 2004 11:01:08 -0500 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.33) id 1CQ6WR-00048Z-JP for qemu-devel@nongnu.org; Fri, 05 Nov 2004 11:01:07 -0500 Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.33) id 1CQ6WR-00048S-GU for qemu-devel@nongnu.org; Fri, 05 Nov 2004 11:01:07 -0500 Received: from [195.184.98.160] (helo=virtualhost.dk) by monty-python.gnu.org with esmtp (TLSv1:DES-CBC3-SHA:168) (Exim 4.34) id 1CQ6OA-0006Fz-H4 for qemu-devel@nongnu.org; Fri, 05 Nov 2004 10:52:35 -0500 Date: Fri, 5 Nov 2004 16:52:04 +0100 From: Jens Axboe Subject: Re: [Qemu-devel] enabling bus-master IDE driver Message-ID: <20041105155204.GJ18527@suse.de> References: <200411051537.iA5Fb6Y3013972@tiger2.tools.intra> <1099669548.418ba02cf297e@imp5-q.free.fr> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1099669548.418ba02cf297e@imp5-q.free.fr> Sender: Jens Axboe Reply-To: qemu-devel@nongnu.org List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org On Fri, Nov 05 2004, zitu wrote: > Quoting Juergen Keil : > > > WIN_WRITEDMA_EXT & WIN_READDMA_EXT cases are not defined in hw/ide.c > > > > Aha, and Windows uses these commands, on small HDDs <= 128GB ? At least Linux 2.6 will use them on any capacity drive, if the drive has support for lba48. You can do bigger transfers that way, WIN_READDMA/WRITEDMA can only do 128kb at the time. But qemu does not flag lba48 support, so neither Linux nor Windows should use the _EXT commands regardless. -- Jens Axboe