From mboxrd@z Thu Jan 1 00:00:00 1970 From: Paolo Bonzini Subject: Re: [PATCH] KVM: SVM: Pass through the host kernel's IO delay port Date: Mon, 22 Jun 2009 19:57:22 +0200 Message-ID: <4A3FC602.8090308@redhat.com> References: <1245406553-22013-1-git-send-email-pbonzini@redhat.com> <20090622173528.GA4673@amt.cnet> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: kvm@vger.kernel.org To: Marcelo Tosatti Return-path: Received: from mx2.redhat.com ([66.187.237.31]:40728 "EHLO mx2.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752946AbZFVR5a (ORCPT ); Mon, 22 Jun 2009 13:57:30 -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 n5MHvXPD005802 for ; Mon, 22 Jun 2009 13:57:33 -0400 In-Reply-To: <20090622173528.GA4673@amt.cnet> Sender: kvm-owner@vger.kernel.org List-ID: Marcelo Tosatti wrote: > Paolo, > > As said in private email you can change the port 80 passthrough to > disabled only on those hosts that have broken port 80 (you can find the > blacklist at arch/x86/kernel/io_delay.c).c Actually I read the code more and, since pv_ops is actually disabling outs to port 80 if the guest is sufficiently new, it may even make more sense for easier maintenance to remove the port 80 passthrough on Intel processors as well... Paolo