From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.6 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 512A3C33CA2 for ; Thu, 9 Jan 2020 14:36:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1F0292075D for ; Thu, 9 Jan 2020 14:36:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1578580614; bh=7IQ/BT7evr0hO46xa6apmP3QZqY3MOa1nt0hxmRfgFE=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=XZTZV6iu2KHGBMkJ2JzdJ5U63JCkftPbvwx1WQKvV8jI2gsVaFQQCV4aliPNtkQA9 CLqIoGcZNIA0OOROaR+F0RH1mhtjyV++UvOlFVk7B6eMR+gIY1/463KcBZBhlDqIL0 R1sms6ndN8y2ImArguDucGCt/fcojOXpZbNG0jzQ= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731759AbgAIOgx (ORCPT ); Thu, 9 Jan 2020 09:36:53 -0500 Received: from mail.kernel.org ([198.145.29.99]:40546 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730385AbgAIOgw (ORCPT ); Thu, 9 Jan 2020 09:36:52 -0500 Received: from willie-the-truck (236.31.169.217.in-addr.arpa [217.169.31.236]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id D79B420721; Thu, 9 Jan 2020 14:36:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1578580612; bh=7IQ/BT7evr0hO46xa6apmP3QZqY3MOa1nt0hxmRfgFE=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=dGC4Beb3Ulpic1VgQEMBIHagk3052sm+9CVIt/Ifr72lbNBZ5ydvIZafauPpqus9J 4IN/uy2Pf3cynBSoWb0ZgmOjhZBSXXBuzWRuLAyLDv63PrdpaQj84F/DlDCv2+fIsF UiwO6Ns8rBHJn4WOM3fgPiEUhEFD9CWTFeZtTyPk= Date: Thu, 9 Jan 2020 14:36:47 +0000 From: Will Deacon To: Jordan Crouse Cc: iommu@lists.linux-foundation.org, robin.murphy@arm.com, linux-arm-kernel@lists.infradead.org, linux-arm-msm@vger.kernel.org, Joerg Roedel , linux-kernel@vger.kernel.org Subject: Re: [PATCH v3 1/5] iommu: Add DOMAIN_ATTR_SPLIT_TABLES Message-ID: <20200109143646.GC12236@willie-the-truck> References: <1576514271-15687-1-git-send-email-jcrouse@codeaurora.org> <1576514271-15687-2-git-send-email-jcrouse@codeaurora.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1576514271-15687-2-git-send-email-jcrouse@codeaurora.org> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Dec 16, 2019 at 09:37:47AM -0700, Jordan Crouse wrote: > Add a new attribute to enable and query the state of split pagetables > for the domain. > > Signed-off-by: Jordan Crouse > --- > > include/linux/iommu.h | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/include/linux/iommu.h b/include/linux/iommu.h > index f2223cb..18c861e 100644 > --- a/include/linux/iommu.h > +++ b/include/linux/iommu.h > @@ -126,6 +126,7 @@ enum iommu_attr { > DOMAIN_ATTR_FSL_PAMUV1, > DOMAIN_ATTR_NESTING, /* two stages of translation */ > DOMAIN_ATTR_DMA_USE_FLUSH_QUEUE, > + DOMAIN_ATTR_SPLIT_TABLES, > DOMAIN_ATTR_MAX, > }; Acked-by: Will Deacon Although a comment describing what this does wouldn't hurt. Will