Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755444Ab2JVPgt (ORCPT ); Mon, 22 Oct 2012 11:36:49 -0400 Received: from mx1.redhat.com ([209.132.183.28]:55038 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751719Ab2JVPgr (ORCPT ); Mon, 22 Oct 2012 11:36:47 -0400 Message-ID: <50856804.5030408@redhat.com> Date: Mon, 22 Oct 2012 17:36:36 +0200 From: Avi Kivity User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:15.0) Gecko/20120911 Thunderbird/15.0.1 MIME-Version: 1.0 To: Gleb Natapov CC: Jan Kiszka , Xiao Guangrong , Marcelo Tosatti , LKML , KVM Subject: Re: [PATCH] KVM: x86: fix vcpu->mmio_fragments overflow References: <20121022114311.GQ29310@redhat.com> <508531E1.2030307@siemens.com> <508539A8.40404@redhat.com> <50853FF1.8010809@siemens.com> <20121022125301.GS29310@redhat.com> <50854232.8090309@siemens.com> <508542EF.5050401@redhat.com> <508544B6.6070301@siemens.com> <20121022130810.GW29310@redhat.com> <5085495D.6060307@siemens.com> <20121022140056.GY29310@redhat.com> In-Reply-To: <20121022140056.GY29310@redhat.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 635 Lines: 16 On 10/22/2012 04:00 PM, Gleb Natapov wrote: > Yes, with frame buffer is seems to be the case. One can imagine ROMD > device that is MMIO on write but still can be accessed for read from > kernel, but it cannot be coalesced even if coalesced buffer is flushed > on every exit. You cannot enable coalescing on such a device. -- error compiling committee.c: too many arguments to function -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/