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=-5.3 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 63E62C433ED for ; Wed, 14 Apr 2021 15:41:48 +0000 (UTC) Received: from smtp2.osuosl.org (smtp2.osuosl.org [140.211.166.133]) (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 EE0B1611B0 for ; Wed, 14 Apr 2021 15:41:47 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org EE0B1611B0 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=iommu-bounces@lists.linux-foundation.org Received: from localhost (localhost [127.0.0.1]) by smtp2.osuosl.org (Postfix) with ESMTP id A96E34013A; Wed, 14 Apr 2021 15:41:47 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp2.osuosl.org ([127.0.0.1]) by localhost (smtp2.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id m6I6q7tL-SJe; Wed, 14 Apr 2021 15:41:47 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [IPv6:2605:bc80:3010:104::8cd3:938]) by smtp2.osuosl.org (Postfix) with ESMTP id A5E18400D2; Wed, 14 Apr 2021 15:41:46 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id 888AFC000C; Wed, 14 Apr 2021 15:41:46 +0000 (UTC) Received: from smtp3.osuosl.org (smtp3.osuosl.org [140.211.166.136]) by lists.linuxfoundation.org (Postfix) with ESMTP id 07EF5C000A for ; Wed, 14 Apr 2021 15:41:45 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp3.osuosl.org (Postfix) with ESMTP id 0333060755 for ; Wed, 14 Apr 2021 15:41:45 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp3.osuosl.org ([127.0.0.1]) by localhost (smtp3.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id VXvT-eM6hdNL for ; Wed, 14 Apr 2021 15:41:44 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.8.0 Received: from verein.lst.de (verein.lst.de [213.95.11.211]) by smtp3.osuosl.org (Postfix) with ESMTPS id 599286074D for ; Wed, 14 Apr 2021 15:41:44 +0000 (UTC) Received: by verein.lst.de (Postfix, from userid 2407) id 4840368C7B; Wed, 14 Apr 2021 17:41:41 +0200 (CEST) Date: Wed, 14 Apr 2021 17:41:41 +0200 From: Christoph Hellwig To: Tianyu Lan Subject: Re: [Resend RFC PATCH V2 04/12] HV: Add Write/Read MSR registers via ghcb Message-ID: <20210414154141.GB32045@lst.de> References: <20210414144945.3460554-1-ltykernel@gmail.com> <20210414144945.3460554-5-ltykernel@gmail.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20210414144945.3460554-5-ltykernel@gmail.com> User-Agent: Mutt/1.5.17 (2007-11-01) Cc: linux-hyperv@vger.kernel.org, brijesh.singh@amd.com, linux-mm@kvack.org, hpa@zytor.com, kys@microsoft.com, will@kernel.org, hch@lst.de, linux-arch@vger.kernel.org, wei.liu@kernel.org, sthemmin@microsoft.com, linux-scsi@vger.kernel.org, x86@kernel.org, mingo@redhat.com, kuba@kernel.org, jejb@linux.ibm.com, thomas.lendacky@amd.com, Tianyu Lan , arnd@arndb.de, konrad.wilk@oracle.com, haiyangz@microsoft.com, bp@alien8.de, tglx@linutronix.de, vkuznets@redhat.com, martin.petersen@oracle.com, gregkh@linuxfoundation.org, sunilmut@microsoft.com, linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org, netdev@vger.kernel.org, akpm@linux-foundation.org, robin.murphy@arm.com, davem@davemloft.net X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Development issues for Linux IOMMU support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" > +EXPORT_SYMBOL_GPL(hv_ghcb_msr_write); Just curious, who is going to use all these exports? These seems like extremely low-level functionality. Isn't there a way to build a more useful higher level API? _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu