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=-13.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 01033C4338F for ; Tue, 17 Aug 2021 12:39:20 +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 5371960EFE for ; Tue, 17 Aug 2021 12:39:19 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 5371960EFE Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=ellerman.id.au 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 4GprFK4nPlz3cLP for ; Tue, 17 Aug 2021 22:39:17 +1000 (AEST) Authentication-Results: lists.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=ellerman.id.au header.i=@ellerman.id.au header.a=rsa-sha256 header.s=201909 header.b=KYXSccDf; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=ellerman.id.au (client-ip=2401:3900:2:1::2; helo=ozlabs.org; envelope-from=mpe@ellerman.id.au; receiver=) Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=ellerman.id.au header.i=@ellerman.id.au header.a=rsa-sha256 header.s=201909 header.b=KYXSccDf; dkim-atps=neutral Received: from ozlabs.org (bilbo.ozlabs.org [IPv6:2401:3900:2:1::2]) (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 4GprDX61lvz2yX8 for ; Tue, 17 Aug 2021 22:38:35 +1000 (AEST) Received: from authenticated.ozlabs.org (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-256) server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by mail.ozlabs.org (Postfix) with ESMTPSA id 4GprDF2h3Tz9sSn; Tue, 17 Aug 2021 22:38:21 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ellerman.id.au; s=201909; t=1629203905; bh=NQyXzwQlAo0xsgc18yZpAOusgLGX71Fk6ueV1qdw5rA=; h=From:To:Cc:Subject:In-Reply-To:References:Date:From; b=KYXSccDfXzjB2hBx15MoEIDf+kWmkDX50zC9GoNA+zRe2h6A0PbLhChR5Cdkwlare Skall5IaM+JNYijtEffokiKW2vk3GcnrIXL9w6cyu8ks9EO2+V9EOw5R+GGu1PiYQv D9NxQxRHQN8/BYGs83P6DhfXjoNRsufAILW0QoxjiCBqx4FvSdnLWb7NReYqLmQl3x p3W/80//lGcl/AzT+8dWLeaLNqPIEQLIUJX653gw3u6fYoSlh4acLTdYAto8S4VL1T o4r+VgRPi55oy+/sUiu+QbwiFA1DMF8zLkBn1HY/7VQPrYtD408/c7FtLIJoHUe5Qi Ap9BkljmAJJGw== From: Michael Ellerman To: Tom Lendacky , 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 Subject: Re: [PATCH v2 04/12] powerpc/pseries/svm: Add a powerpc version of prot_guest_has() In-Reply-To: <000f627ce20c6504dd8d118d85bd69e7717b752f.1628873970.git.thomas.lendacky@amd.com> References: <000f627ce20c6504dd8d118d85bd69e7717b752f.1628873970.git.thomas.lendacky@amd.com> Date: Tue, 17 Aug 2021 22:38:19 +1000 Message-ID: <874kbogsas.fsf@mpe.ellerman.id.au> MIME-Version: 1.0 Content-Type: text/plain 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: Sathyanarayanan Kuppuswamy , Andi Kleen , Tianyu Lan , Joerg Roedel , Borislav Petkov , Brijesh Singh , Paul Mackerras Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" Tom Lendacky writes: > Introduce a powerpc version of the prot_guest_has() function. This will > be used to replace the powerpc mem_encrypt_active() implementation, so > the implementation will initially only support the PATTR_MEM_ENCRYPT > attribute. > > Cc: Michael Ellerman > Cc: Benjamin Herrenschmidt > Cc: Paul Mackerras > Signed-off-by: Tom Lendacky > --- > arch/powerpc/include/asm/protected_guest.h | 30 ++++++++++++++++++++++ > arch/powerpc/platforms/pseries/Kconfig | 1 + > 2 files changed, 31 insertions(+) > create mode 100644 arch/powerpc/include/asm/protected_guest.h > > diff --git a/arch/powerpc/include/asm/protected_guest.h b/arch/powerpc/include/asm/protected_guest.h > new file mode 100644 > index 000000000000..ce55c2c7e534 > --- /dev/null > +++ b/arch/powerpc/include/asm/protected_guest.h > @@ -0,0 +1,30 @@ > +/* SPDX-License-Identifier: GPL-2.0-only */ > +/* > + * Protected Guest (and Host) Capability checks > + * > + * Copyright (C) 2021 Advanced Micro Devices, Inc. > + * > + * Author: Tom Lendacky > + */ > + > +#ifndef _POWERPC_PROTECTED_GUEST_H > +#define _POWERPC_PROTECTED_GUEST_H Minor nit, we would usually use _ASM_POWERPC_PROTECTED_GUEST_H Otherwise looks OK to me. Acked-by: Michael Ellerman cheers