From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?UTF-8?B?RGFya28gUGV0cm92acSH?= Subject: Zero-copy block driver? Date: Sat, 29 Jan 2011 04:55:23 +0100 Message-ID: <4D438FAB.5000002@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit To: kvm@vger.kernel.org Return-path: Received: from mail-wy0-f174.google.com ([74.125.82.174]:64179 "EHLO mail-wy0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752129Ab1A2Dz2 (ORCPT ); Fri, 28 Jan 2011 22:55:28 -0500 Received: by wyb28 with SMTP id 28so3879745wyb.19 for ; Fri, 28 Jan 2011 19:55:27 -0800 (PST) Sender: kvm-owner@vger.kernel.org List-ID: Hi everyone, Could you please tell me if it is possible to use a block driver that completely avoids the guest kernel and copies block data directly to/from the given buffer in the guest userspace? If yes, how to activate it? If not... why not? :) Thanks! Darko