From mboxrd@z Thu Jan 1 00:00:00 1970 From: Avi Kivity Subject: Re: EOI acceleration for high bandwidth IO Date: Mon, 06 Jul 2009 17:03:50 +0300 Message-ID: <4A520446.7030709@redhat.com> References: <1246872854.11177.1.camel@bl3aed4p.de.ibm.com> <4A51E5AB.7070103@redhat.com> <9832F13BD22FB94A829F798DA4A8280501B9CF542E@pdsmsx503.ccr.corp.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: "kvm@vger.kernel.org" To: "Dong, Eddie" Return-path: Received: from mx2.redhat.com ([66.187.237.31]:56685 "EHLO mx2.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752814AbZGFOBa (ORCPT ); Mon, 6 Jul 2009 10:01:30 -0400 In-Reply-To: <9832F13BD22FB94A829F798DA4A8280501B9CF542E@pdsmsx503.ccr.corp.intel.com> Sender: kvm-owner@vger.kernel.org List-ID: On 07/06/2009 04:42 PM, Dong, Eddie wrote: > EOI is one of key VM Exit at high bandwidth IO such as VT-d with 10Gb/s NIC. > This patch accelerate guest EOI emulation utilizing HW VM Exit > information. > Won't this fail if the guest uses STOSD to issue the EOI? (of course, no guest does this, just looking for potential problems) -- error compiling committee.c: too many arguments to function