From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753075AbaKJV6W (ORCPT ); Mon, 10 Nov 2014 16:58:22 -0500 Received: from mx1.redhat.com ([209.132.183.28]:42470 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752993AbaKJV6R (ORCPT ); Mon, 10 Nov 2014 16:58:17 -0500 Message-ID: <1415656669.16601.293.camel@ul30vt.home> Subject: Re: [PATCH 13/13] iommu/vt-d: Add a command line parameter for VT-d posted-interrupts From: Alex Williamson To: Feng Wu Cc: gleb@kernel.org, pbonzini@redhat.com, dwmw2@infradead.org, joro@8bytes.org, tglx@linutronix.de, mingo@redhat.com, hpa@zytor.com, x86@kernel.org, kvm@vger.kernel.org, iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org Date: Mon, 10 Nov 2014 14:57:49 -0700 In-Reply-To: <1415600812-27773-14-git-send-email-feng.wu@intel.com> References: <1415600812-27773-1-git-send-email-feng.wu@intel.com> <1415600812-27773-14-git-send-email-feng.wu@intel.com> Content-Type: text/plain; charset="UTF-8" Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 2014-11-10 at 14:26 +0800, Feng Wu wrote: > Enable VT-d Posted-Interrtups and add a command line > parameter for it. > > Signed-off-by: Feng Wu > --- > drivers/iommu/irq_remapping.c | 9 ++++++++- > 1 files changed, 8 insertions(+), 1 deletions(-) > > diff --git a/drivers/iommu/irq_remapping.c b/drivers/iommu/irq_remapping.c > index 0e36860..3cb9429 100644 > --- a/drivers/iommu/irq_remapping.c > +++ b/drivers/iommu/irq_remapping.c > @@ -23,7 +23,7 @@ int irq_remap_broken; > int disable_sourceid_checking; > int no_x2apic_optout; > > -int disable_irq_post = 1; > +int disable_irq_post = 0; > int irq_post_enabled = 0; > EXPORT_SYMBOL_GPL(irq_post_enabled); > > @@ -206,6 +206,13 @@ static __init int setup_irqremap(char *str) > } > early_param("intremap", setup_irqremap); > > +static __init int setup_nointpost(char *str) > +{ > + disable_irq_post = 1; > + return 0; > +} > +early_param("nointpost", setup_nointpost); > + Documentation/kernel-parameters.txt? Thanks, Alex > void __init setup_irq_remapping_ops(void) > { > remap_ops = &intel_irq_remap_ops;