Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758080AbZC1OY7 (ORCPT ); Sat, 28 Mar 2009 10:24:59 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752276AbZC1OYt (ORCPT ); Sat, 28 Mar 2009 10:24:49 -0400 Received: from mail-bw0-f169.google.com ([209.85.218.169]:51019 "EHLO mail-bw0-f169.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751791AbZC1OYs (ORCPT ); Sat, 28 Mar 2009 10:24:48 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type:content-transfer-encoding; b=gFtSkRZyzRITRkABaAi3kFn3vPkxU+YVrW2zy7sAr6IFKWwp7Wdx+vNIyVVI1RUA9E vH/XB6x0N5+Flk/ERKc5kP1d5tLATZbaY/9AYlhaUzeG7e9Xz9jwki+SKUTiN5DmMyfI 1xy8Hkk5uF36o5k2L9Kpy4EuF110O8H7ispI0= MIME-Version: 1.0 In-Reply-To: <20090327212241.234500000@intel.com> References: <20090327212241.234500000@intel.com> Date: Sat, 28 Mar 2009 10:24:45 -0400 Message-ID: Subject: Re: [patch 0/4] Intel IOMMU Supspend/Resume Support From: Andrew Lutomirski To: Fenghua Yu Cc: Ingo Molnar , David Woodhouse , Suresh Siddha , Jesse Barnes , Kyle McMartin , Yinghai Lu , LKML , IOMMU 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: 998 Lines: 26 Works for me (applied to current -tip). I suspended and resumed just fine, with no errors logged and all hardware apparently still working. Tested-by: Andy Lutomirski Thanks for the patch! Andy On Fri, Mar 27, 2009 at 5:22 PM, Fenghua Yu wrote: > Current Intel IOMMU does not support suspend and resume. In S3 event, kernel > crashes when DMAR or interrupt remapping is running. > > The attached patch set implements the suspend and resume feature for Intel > IOMMU. It hooks to kernel suspend and resume interface. When suspend happens, itsaves necessary hardware registers. When resume happens, it restores the > registers and restarts IOMMU. > > This patch set can be applied on the tip tree. > > -- > > -- 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/