From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:54033) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TaPru-0004ZS-3c for qemu-devel@nongnu.org; Mon, 19 Nov 2012 06:50:29 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1TaPrq-0003pU-Vr for qemu-devel@nongnu.org; Mon, 19 Nov 2012 06:50:25 -0500 Received: from mail-bk0-f45.google.com ([209.85.214.45]:60916) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TaPrq-0003pQ-N8 for qemu-devel@nongnu.org; Mon, 19 Nov 2012 06:50:22 -0500 Received: by mail-bk0-f45.google.com with SMTP id jk13so874853bkc.4 for ; Mon, 19 Nov 2012 03:50:21 -0800 (PST) Date: Mon, 19 Nov 2012 12:50:19 +0100 From: Stefan Hajnoczi Message-ID: <20121119115019.GA29775@stefanha-thinkpad.redhat.com> References: <50903FB402000091000826B3@novprvoes0310.provo.novell.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <50903FB402000091000826B3@novprvoes0310.provo.novell.com> Subject: Re: [Qemu-devel] [PATCH] block: vpc support for ~2 TB disks List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Charles Arnold Cc: Kevin Wolf , qemu-devel@nongnu.org On Tue, Oct 30, 2012 at 08:59:32PM -0600, Charles Arnold wrote: > The VHD specification allows for up to a 2 TB disk size. The current > implementation in qemu emulates EIDE and ATA-2 hardware which only allows > for up to 127 GB. This disk size limitation can be overridden by allowing > up to 255 heads instead of the normal 4 bit limitation of 16. Doing so > allows disk images to be created of up to nearly 2 TB. This change does > not violate the VHD format specification nor does it change how smaller > disks (ie, <=127GB) are defined. > > Signed-off-by: Charles Arnold Thanks, applied to my block-next tree: https://github.com/stefanha/qemu/commits/block-next Stefan