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=-5.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS 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 00DD6C432BE for ; Wed, 28 Jul 2021 13:24:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DDB5B6101B for ; Wed, 28 Jul 2021 13:24:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236310AbhG1NYS (ORCPT ); Wed, 28 Jul 2021 09:24:18 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51930 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233315AbhG1NYR (ORCPT ); Wed, 28 Jul 2021 09:24:17 -0400 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A77F2C061757; Wed, 28 Jul 2021 06:24:15 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=wyV5oHahoyFyDlkMKSruinnsahdkugSgLawjHfbEEjQ=; b=CxvZX41K0o1QkS+QNIrwd0eOBe mqQ6PrksWIat6lXJKZPun+q1pAOQx0xLcn0dXI0f5/QwQmDJVibY4qE3c7TAdHgsIiPO3KhQic7GW 1eyfOJ6+e5m0vdD3PZ+UIsWjdf71Rv+qjxbud/TVWu09HUCIEgoxhatZ/TSoyrl9g8w0xVsK0qnJb Ssgb2vj86C8FXbvbGsNNF9o/MH3FUfh7M9nUfPwhEPmwHvq/+B3ENaQ00GINALSLZBrB8jUNO3eAN ZD343FSM3tMyDXd6949QP8wSOuEJ0mt327HB6lpEtnWhWjFhF6Z9hGOLbHanuC9ie9QiNGCSpAJVM Xwq8/NVQ==; Received: from hch by casper.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1m8jWV-00G5AN-CH; Wed, 28 Jul 2021 13:23:16 +0000 Date: Wed, 28 Jul 2021 14:22:59 +0100 From: Christoph Hellwig To: Tom Lendacky Cc: linux-kernel@vger.kernel.org, x86@kernel.org, linuxppc-dev@lists.ozlabs.org, linux-s390@vger.kernel.org, iommu@lists.linux-foundation.org, kvm@vger.kernel.org, linux-efi@vger.kernel.org, platform-driver-x86@vger.kernel.org, linux-graphics-maintainer@vmware.com, amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, kexec@lists.infradead.org, linux-fsdevel@vger.kernel.org, Andi Kleen , Tianyu Lan , Peter Zijlstra , Dave Hansen , Ingo Molnar , Borislav Petkov , Andy Lutomirski , Brijesh Singh , Thomas Gleixner Subject: Re: [PATCH 02/11] x86/sev: Add an x86 version of prot_guest_has() Message-ID: References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org. See http://www.infradead.org/rpr.html Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Jul 27, 2021 at 05:26:05PM -0500, Tom Lendacky via iommu 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 None of that applies here as none of the callers get pulled into random macros. The only case of that is sme_me_mask through sme_mask, but that's not something this series replaces as far as I can tell. 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=-3.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED 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 E1B07C4338F for ; Wed, 28 Jul 2021 13:25:45 +0000 (UTC) Received: from smtp1.osuosl.org (smtp1.osuosl.org [140.211.166.138]) (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 9604760FE7 for ; Wed, 28 Jul 2021 13:25:45 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 9604760FE7 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=lists.linux-foundation.org Received: from localhost (localhost [127.0.0.1]) by smtp1.osuosl.org (Postfix) with ESMTP id 5FF9483653; Wed, 28 Jul 2021 13:25:45 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp1.osuosl.org ([127.0.0.1]) by localhost (smtp1.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id lmx-KTfhzEhO; Wed, 28 Jul 2021 13:25:44 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [IPv6:2605:bc80:3010:104::8cd3:938]) by smtp1.osuosl.org (Postfix) with ESMTPS id 37BFD83993; Wed, 28 Jul 2021 13:25:44 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id 05862C001A; Wed, 28 Jul 2021 13:25:44 +0000 (UTC) Received: from smtp4.osuosl.org (smtp4.osuosl.org [140.211.166.137]) by lists.linuxfoundation.org (Postfix) with ESMTP id 9F5D8C000E for ; Wed, 28 Jul 2021 13:25:42 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp4.osuosl.org (Postfix) with ESMTP id 80CA0405C0 for ; Wed, 28 Jul 2021 13:25:42 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Authentication-Results: smtp4.osuosl.org (amavisd-new); dkim=pass (2048-bit key) header.d=infradead.org Received: from smtp4.osuosl.org ([127.0.0.1]) by localhost (smtp4.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id F0DC-MKsb5x4 for ; Wed, 28 Jul 2021 13:25:42 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.8.0 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by smtp4.osuosl.org (Postfix) with ESMTPS id EE9A1405B7 for ; Wed, 28 Jul 2021 13:25:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=wyV5oHahoyFyDlkMKSruinnsahdkugSgLawjHfbEEjQ=; b=CxvZX41K0o1QkS+QNIrwd0eOBe mqQ6PrksWIat6lXJKZPun+q1pAOQx0xLcn0dXI0f5/QwQmDJVibY4qE3c7TAdHgsIiPO3KhQic7GW 1eyfOJ6+e5m0vdD3PZ+UIsWjdf71Rv+qjxbud/TVWu09HUCIEgoxhatZ/TSoyrl9g8w0xVsK0qnJb Ssgb2vj86C8FXbvbGsNNF9o/MH3FUfh7M9nUfPwhEPmwHvq/+B3ENaQ00GINALSLZBrB8jUNO3eAN ZD343FSM3tMyDXd6949QP8wSOuEJ0mt327HB6lpEtnWhWjFhF6Z9hGOLbHanuC9ie9QiNGCSpAJVM Xwq8/NVQ==; Received: from hch by casper.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1m8jWV-00G5AN-CH; Wed, 28 Jul 2021 13:23:16 +0000 Date: Wed, 28 Jul 2021 14:22:59 +0100 From: Christoph Hellwig 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: X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org. See http://www.infradead.org/rpr.html 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 via iommu 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 None of that applies here as none of the callers get pulled into random macros. The only case of that is sme_me_mask through sme_mask, but that's not something this series replaces as far as I can tell. _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu 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=-3.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS 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 BA194C4338F for ; Wed, 28 Jul 2021 13:25:48 +0000 (UTC) Received: from lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (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 242CC60FE7 for ; Wed, 28 Jul 2021 13:25:47 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 242CC60FE7 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=lists.ozlabs.org Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4GZZDB3Gzlz3bZZ for ; Wed, 28 Jul 2021 23:25:46 +1000 (AEST) Authentication-Results: lists.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; secure) header.d=infradead.org header.i=@infradead.org header.a=rsa-sha256 header.s=casper.20170209 header.b=CxvZX41K; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=none (no SPF record) smtp.mailfrom=casper.srs.infradead.org (client-ip=2001:8b0:10b:1236::1; helo=casper.infradead.org; envelope-from=batv+0bc2c65ec7bce8a447c4+6548+infradead.org+hch@casper.srs.infradead.org; receiver=) Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; secure) header.d=infradead.org header.i=@infradead.org header.a=rsa-sha256 header.s=casper.20170209 header.b=CxvZX41K; dkim-atps=neutral Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4GZZCl05JRz3046 for ; Wed, 28 Jul 2021 23:25:22 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=wyV5oHahoyFyDlkMKSruinnsahdkugSgLawjHfbEEjQ=; b=CxvZX41K0o1QkS+QNIrwd0eOBe mqQ6PrksWIat6lXJKZPun+q1pAOQx0xLcn0dXI0f5/QwQmDJVibY4qE3c7TAdHgsIiPO3KhQic7GW 1eyfOJ6+e5m0vdD3PZ+UIsWjdf71Rv+qjxbud/TVWu09HUCIEgoxhatZ/TSoyrl9g8w0xVsK0qnJb Ssgb2vj86C8FXbvbGsNNF9o/MH3FUfh7M9nUfPwhEPmwHvq/+B3ENaQ00GINALSLZBrB8jUNO3eAN ZD343FSM3tMyDXd6949QP8wSOuEJ0mt327HB6lpEtnWhWjFhF6Z9hGOLbHanuC9ie9QiNGCSpAJVM Xwq8/NVQ==; Received: from hch by casper.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1m8jWV-00G5AN-CH; Wed, 28 Jul 2021 13:23:16 +0000 Date: Wed, 28 Jul 2021 14:22:59 +0100 From: Christoph Hellwig 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-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org. See http://www.infradead.org/rpr.html X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , 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 Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" On Tue, Jul 27, 2021 at 05:26:05PM -0500, Tom Lendacky via iommu 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 None of that applies here as none of the callers get pulled into random macros. The only case of that is sme_me_mask through sme_mask, but that's not something this series replaces as far as I can tell. 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=-3.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED 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 1CA35C4338F for ; Wed, 28 Jul 2021 13:27:10 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (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 DFCF761019 for ; Wed, 28 Jul 2021 13:27:09 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org DFCF761019 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 7A8C56E1D2; Wed, 28 Jul 2021 13:27:09 +0000 (UTC) Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by gabe.freedesktop.org (Postfix) with ESMTPS id B76AB6E953; Wed, 28 Jul 2021 13:26:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=wyV5oHahoyFyDlkMKSruinnsahdkugSgLawjHfbEEjQ=; b=CxvZX41K0o1QkS+QNIrwd0eOBe mqQ6PrksWIat6lXJKZPun+q1pAOQx0xLcn0dXI0f5/QwQmDJVibY4qE3c7TAdHgsIiPO3KhQic7GW 1eyfOJ6+e5m0vdD3PZ+UIsWjdf71Rv+qjxbud/TVWu09HUCIEgoxhatZ/TSoyrl9g8w0xVsK0qnJb Ssgb2vj86C8FXbvbGsNNF9o/MH3FUfh7M9nUfPwhEPmwHvq/+B3ENaQ00GINALSLZBrB8jUNO3eAN ZD343FSM3tMyDXd6949QP8wSOuEJ0mt327HB6lpEtnWhWjFhF6Z9hGOLbHanuC9ie9QiNGCSpAJVM Xwq8/NVQ==; Received: from hch by casper.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1m8jWV-00G5AN-CH; Wed, 28 Jul 2021 13:23:16 +0000 Date: Wed, 28 Jul 2021 14:22:59 +0100 From: Christoph Hellwig 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: X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org. See http://www.infradead.org/rpr.html X-Mailman-Approved-At: Wed, 28 Jul 2021 13:27:08 +0000 X-BeenThere: amd-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Discussion list for AMD gfx List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , 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 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: amd-gfx-bounces@lists.freedesktop.org Sender: "amd-gfx" On Tue, Jul 27, 2021 at 05:26:05PM -0500, Tom Lendacky via iommu 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 None of that applies here as none of the callers get pulled into random macros. The only case of that is sme_me_mask through sme_mask, but that's not something this series replaces as far as I can tell. _______________________________________________ amd-gfx mailing list amd-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/amd-gfx From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Date: Wed, 28 Jul 2021 14:22:59 +0100 From: Christoph Hellwig 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: List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "kexec" Errors-To: kexec-bounces+dwmw2=infradead.org@lists.infradead.org To: Tom Lendacky Cc: linux-kernel@vger.kernel.org, x86@kernel.org, linuxppc-dev@lists.ozlabs.org, linux-s390@vger.kernel.org, iommu@lists.linux-foundation.org, kvm@vger.kernel.org, linux-efi@vger.kernel.org, platform-driver-x86@vger.kernel.org, linux-graphics-maintainer@vmware.com, amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, kexec@lists.infradead.org, linux-fsdevel@vger.kernel.org, Andi Kleen , Tianyu Lan , Peter Zijlstra , Dave Hansen , Ingo Molnar , Borislav Petkov , Andy Lutomirski , Brijesh Singh , Thomas Gleixner On Tue, Jul 27, 2021 at 05:26:05PM -0500, Tom Lendacky via iommu 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 None of that applies here as none of the callers get pulled into random macros. The only case of that is sme_me_mask through sme_mask, but that's not something this series replaces as far as I can tell. _______________________________________________ kexec mailing list kexec@lists.infradead.org http://lists.infradead.org/mailman/listinfo/kexec