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=-5.2 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 autolearn=no 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 39EB7C433ED for ; Wed, 12 May 2021 07:27:04 +0000 (UTC) Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id CCA4D613EE for ; Wed, 12 May 2021 07:27:03 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org CCA4D613EE Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Received: from list by lists.xenproject.org with outflank-mailman.126153.237483 (Exim 4.92) (envelope-from ) id 1lgjGb-0005zd-Vj; Wed, 12 May 2021 07:26:49 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 126153.237483; Wed, 12 May 2021 07:26:49 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1lgjGb-0005zW-Ri; Wed, 12 May 2021 07:26:49 +0000 Received: by outflank-mailman (input) for mailman id 126153; Wed, 12 May 2021 07:26:49 +0000 Received: from us1-rack-iad1.inumbo.com ([172.99.69.81]) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1lgjGb-0005zQ-CT for xen-devel@lists.xenproject.org; Wed, 12 May 2021 07:26:49 +0000 Received: from verein.lst.de (unknown [213.95.11.211]) by us1-rack-iad1.inumbo.com (Halon) with ESMTPS id 618a88ed-57e8-4ba7-a9af-ca60e4609b20; Wed, 12 May 2021 07:26:48 +0000 (UTC) Received: by verein.lst.de (Postfix, from userid 2407) id 90F4A67373; Wed, 12 May 2021 09:26:45 +0200 (CEST) X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: 618a88ed-57e8-4ba7-a9af-ca60e4609b20 Date: Wed, 12 May 2021 09:26:45 +0200 From: Christoph Hellwig To: Stefano Stabellini Cc: xen-devel@lists.xenproject.org, hch@lst.de, linux-kernel@vger.kernel.org, Stefano Stabellini , boris.ostrovsky@oracle.com, jgross@suse.com, catalin.marinas@arm.com, will@kernel.org, linux-arm-kernel@lists.infradead.org Subject: Re: [PATCH 1/2] xen/arm64: do not set SWIOTLB_NO_FORCE when swiotlb is required Message-ID: <20210512072645.GA22396@lst.de> References: <20210511174142.12742-1-sstabellini@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20210511174142.12742-1-sstabellini@kernel.org> User-Agent: Mutt/1.5.17 (2007-11-01) > -int xen_swiotlb_detect(void) > -{ > - if (!xen_domain()) > - return 0; > - if (xen_feature(XENFEAT_direct_mapped)) > - return 1; > - /* legacy case */ > - if (!xen_feature(XENFEAT_not_direct_mapped) && xen_initial_domain()) > - return 1; > - return 0; > -} I think this move should be a separate prep patch.