From mboxrd@z Thu Jan 1 00:00:00 1970 From: Avi Kivity Subject: Re: [PATCH 10/10] Introduce MSI message sending interface that bypass IRQ routing. Date: Sun, 09 Aug 2009 18:14:32 +0300 Message-ID: <4A7EE7D8.60205@redhat.com> References: <1249821671-32356-1-git-send-email-gleb@redhat.com> <1249821671-32356-11-git-send-email-gleb@redhat.com> <4A7EE39E.40809@redhat.com> <20090809145245.GA4932@redhat.com> <4A7EE4BB.5070606@redhat.com> <20090809150707.GT4764@redhat.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: Gleb Natapov Return-path: Received: from mx2.redhat.com ([66.187.237.31]:36005 "EHLO mx2.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751305AbZHIPIh (ORCPT ); Sun, 9 Aug 2009 11:08:37 -0400 Received: from int-mx2.corp.redhat.com (int-mx2.corp.redhat.com [172.16.27.26]) by mx2.redhat.com (8.13.8/8.13.8) with ESMTP id n79F8cWR001850 for ; Sun, 9 Aug 2009 11:08:38 -0400 In-Reply-To: <20090809150707.GT4764@redhat.com> Sender: kvm-owner@vger.kernel.org List-ID: On 08/09/2009 06:07 PM, Gleb Natapov wrote: >> It's still an "install handle, call handle" interface. Maybe it would >> have been better to start off with your new interface, but having both >> is too much for too little gain. >> >> > Is it not too late to change interface? There was no released kernel with > irqfd yet. And this just adds another level of indirection and one more > point of false cache sharing. > No irqfd, but we do have irq routing. The sharing isn't a problem since it's read only. -- error compiling committee.c: too many arguments to function