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=-8.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham 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 1E7F9C4320A for ; Mon, 2 Aug 2021 10:35:55 +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 BB7FF60FC2 for ; Mon, 2 Aug 2021 10:35:54 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org BB7FF60FC2 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=8bytes.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=lists.linux-foundation.org Received: from localhost (localhost [127.0.0.1]) by smtp2.osuosl.org (Postfix) with ESMTP id 8CF4D403B6; Mon, 2 Aug 2021 10:35:54 +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 I7igN0edxbvm; Mon, 2 Aug 2021 10:35:53 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [IPv6:2605:bc80:3010:104::8cd3:938]) by smtp2.osuosl.org (Postfix) with ESMTPS id 8FD26401BF; Mon, 2 Aug 2021 10:35:52 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id 78EF3C001B; Mon, 2 Aug 2021 10:35:52 +0000 (UTC) Received: from smtp3.osuosl.org (smtp3.osuosl.org [IPv6:2605:bc80:3010::136]) by lists.linuxfoundation.org (Postfix) with ESMTP id 2D5C2C000E for ; Mon, 2 Aug 2021 10:35:51 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp3.osuosl.org (Postfix) with ESMTP id 2718C606EA for ; Mon, 2 Aug 2021 10:35:51 +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 KDbPpW3seUAI for ; Mon, 2 Aug 2021 10:35:50 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.8.0 Received: from theia.8bytes.org (8bytes.org [81.169.241.247]) by smtp3.osuosl.org (Postfix) with ESMTPS id 82380606DE for ; Mon, 2 Aug 2021 10:35:50 +0000 (UTC) Received: by theia.8bytes.org (Postfix, from userid 1000) id C8EAC926; Mon, 2 Aug 2021 12:35:46 +0200 (CEST) Date: Mon, 2 Aug 2021 12:35:45 +0200 From: Joerg Roedel To: Tom Lendacky Subject: Re: [PATCH 02/11] x86/sev: Add an x86 version of prot_guest_has() Message-ID: References: MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: Cc: linux-efi@vger.kernel.org, Brijesh Singh , kvm@vger.kernel.org, Peter Zijlstra , Dave Hansen , dri-devel@lists.freedesktop.org, platform-driver-x86@vger.kernel.org, linux-s390@vger.kernel.org, Andi Kleen , x86@kernel.org, amd-gfx@lists.freedesktop.org, Ingo Molnar , linux-graphics-maintainer@vmware.com, Tianyu Lan , Borislav Petkov , Andy Lutomirski , Thomas Gleixner , kexec@lists.infradead.org, linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org, linux-fsdevel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org 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" On Tue, Jul 27, 2021 at 05:26:05PM -0500, Tom Lendacky wrote: > Introduce an x86 version of the prot_guest_has() function. This will be > used in the more generic x86 code to replace vendor specific calls like > sev_active(), etc. > > While the name suggests this is intended mainly for guests, it will > also be used for host memory encryption checks in place of sme_active(). > > The amd_prot_guest_has() function does not use EXPORT_SYMBOL_GPL for the > same reasons previously stated when changing sme_active(), sev_active and > sme_me_mask to EXPORT_SYBMOL: > commit 87df26175e67 ("x86/mm: Unbreak modules that rely on external PAGE_KERNEL availability") > commit 9d5f38ba6c82 ("x86/mm: Unbreak modules that use the DMA API") > > Cc: Thomas Gleixner > Cc: Ingo Molnar > Cc: Borislav Petkov > Cc: Dave Hansen > Cc: Andy Lutomirski > Cc: Peter Zijlstra > Co-developed-by: Andi Kleen > Signed-off-by: Andi Kleen > Co-developed-by: Kuppuswamy Sathyanarayanan > Signed-off-by: Kuppuswamy Sathyanarayanan > Signed-off-by: Tom Lendacky Reviewed-by: Joerg Roedel _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu