Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754206AbZCYUxk (ORCPT ); Wed, 25 Mar 2009 16:53:40 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753161AbZCYUx0 (ORCPT ); Wed, 25 Mar 2009 16:53:26 -0400 Received: from mail-fx0-f158.google.com ([209.85.220.158]:51070 "EHLO mail-fx0-f158.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753069AbZCYUxZ (ORCPT ); Wed, 25 Mar 2009 16:53:25 -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=UKQCq3TMHWmFeXGUtCbF/zZ2ryu+SVFCdY+AZutUMmM6bTDobVW4kmpaKavBouNFc1 e5VBmyPVQVgnX4L/+++wJBfJmldfgm+xB4SdxAiwy8HrvOD4kKjxFj6wlORRotTdQfFX EP0vn2jOFRGrQChEzVtrf7XsZaKljPZR4obj8= MIME-Version: 1.0 In-Reply-To: <20090325184548.012018000@intel.com> References: <20090325184548.012018000@intel.com> Date: Wed, 25 Mar 2009 16:53:22 -0400 Message-ID: Subject: Re: [patch 0/2] Intel IOMMU Suspend/Resume Support From: Andrew Lutomirski To: fenghua.yu@intel.com Cc: mingo@elte.hu, dwmw2@infradead.org, kyle@redhat.com, mgross@linux.intel.com, linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org 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: 1024 Lines: 26 It looks like patch 1 calls dmar_reenable_qi but patch 2 defines it. In 2.6.29, there's no dmar_disable_qi that I can see. Can you respin these against something a little less scary than -tip during a merge window? (Especially since -stable will need this soon.) Thanks, Andy On Wed, Mar 25, 2009 at 2:45 PM, wrote: > Current Intel IOMMU does not support suspend and resume. In S3 event, kernel > crashes when IOMMU is enabled. The attached patch set implements the suspend and > resume feature for Intel IOMMU. It hooks to kernel suspend and resume interface. > When suspend happens, it saves necessary hardware registers. When resume happens > it restores the registers and restarts IOMMU. > > This patch set is applied to 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/