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=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 05098C433F5 for ; Tue, 14 Sep 2021 11:58:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DD1B9610FB for ; Tue, 14 Sep 2021 11:58:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232456AbhINL7g (ORCPT ); Tue, 14 Sep 2021 07:59:36 -0400 Received: from mail.skyhub.de ([5.9.137.197]:57542 "EHLO mail.skyhub.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232287AbhINL7d (ORCPT ); Tue, 14 Sep 2021 07:59:33 -0400 Received: from zn.tnic (p200300ec2f1048001e15ef619509992f.dip0.t-ipconnect.de [IPv6:2003:ec:2f10:4800:1e15:ef61:9509:992f]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.skyhub.de (SuperMail on ZX Spectrum 128k) with ESMTPSA id 8B7241EC04EC; Tue, 14 Sep 2021 13:58:10 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alien8.de; s=dkim; t=1631620690; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:in-reply-to:in-reply-to: references:references; bh=b/N09IsvqYn24JfFZ47aDfAefXmwmXR82Pt3awNAfbs=; b=bxwwIzIyK+Rg4oIy01BbpgT86ORE1XKclCEYAaQ9uu2p2YFJBhtO9vvO21Z67RPc0ptMoP 47+Ry7kCX0P48iid+/PmdkrtsbH5uZdiuAmR5uxqjBKZy74znSrvhF2nYkipmdb9VWoPx/ PSVn04awQpG91qOKWcYNAHUkxFtjb44= Date: Tue, 14 Sep 2021 13:58:04 +0200 From: Borislav Petkov To: Michael Ellerman Cc: 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, Brijesh Singh , Joerg Roedel , Andi Kleen , Sathyanarayanan Kuppuswamy , Tianyu Lan , Christoph Hellwig , Benjamin Herrenschmidt , Paul Mackerras Subject: Re: [PATCH v3 4/8] powerpc/pseries/svm: Add a powerpc version of cc_platform_has() Message-ID: References: <9d4fc3f8ea7b325aaa1879beab1286876f45d450.1631141919.git.thomas.lendacky@amd.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <9d4fc3f8ea7b325aaa1879beab1286876f45d450.1631141919.git.thomas.lendacky@amd.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Sep 08, 2021 at 05:58:35PM -0500, Tom Lendacky wrote: > Introduce a powerpc version of the cc_platform_has() function. This will > be used to replace the powerpc mem_encrypt_active() implementation, so > the implementation will initially only support the CC_ATTR_MEM_ENCRYPT > attribute. > > Cc: Michael Ellerman > Cc: Benjamin Herrenschmidt > Cc: Paul Mackerras > Signed-off-by: Tom Lendacky > --- > arch/powerpc/platforms/pseries/Kconfig | 1 + > arch/powerpc/platforms/pseries/Makefile | 2 ++ > arch/powerpc/platforms/pseries/cc_platform.c | 26 ++++++++++++++++++++ > 3 files changed, 29 insertions(+) > create mode 100644 arch/powerpc/platforms/pseries/cc_platform.c Michael, can I get an ACK for the ppc bits to carry them through the tip tree pls? Btw, on a related note, cross-compiling this throws the following error here: $ make CROSS_COMPILE=/home/share/src/crosstool/gcc-9.4.0-nolibc/powerpc64-linux/bin/powerpc64-linux- V=1 ARCH=powerpc ... /home/share/src/crosstool/gcc-9.4.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc -Wp,-MD,arch/powerpc/boot/.crt0.o.d -D__ASSEMBLY__ -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs -fno-strict-aliasing -O2 -msoft-float -mno-altivec -mno-vsx -pipe -fomit-frame-pointer -fno-builtin -fPIC -nostdinc -include ./include/linux/compiler_attributes.h -I./arch/powerpc/include -I./arch/powerpc/include/generated -I./include -I./arch/powerpc/include/uapi -I./arch/powerpc/include/generated/uapi -I./include/uapi -I./include/generated/uapi -include ./include/linux/compiler-version.h -include ./include/linux/kconfig.h -m32 -isystem /home/share/src/crosstool/gcc-9.4.0-nolibc/powerpc64-linux/bin/../lib/gcc/powerpc64-linux/9.4.0/include -mbig-endian -nostdinc -c -o arch/powerpc/boot/crt0.o arch/powerpc/boot/crt0.S In file included from : ././include/linux/compiler_attributes.h:62:5: warning: "__has_attribute" is not defined, evaluates to 0 [-Wundef] 62 | #if __has_attribute(__assume_aligned__) | ^~~~~~~~~~~~~~~ ././include/linux/compiler_attributes.h:62:20: error: missing binary operator before token "(" 62 | #if __has_attribute(__assume_aligned__) | ^ ././include/linux/compiler_attributes.h:88:5: warning: "__has_attribute" is not defined, evaluates to 0 [-Wundef] 88 | #if __has_attribute(__copy__) | ^~~~~~~~~~~~~~~ ... Known issue? This __has_attribute() thing is supposed to be supported in gcc since 5.1 and I'm using the crosstool stuff from https://www.kernel.org/pub/tools/crosstool/ and gcc-9.4 above is pretty new so that should not happen actually. But it does... Hmmm. -- Regards/Gruss, Boris. https://people.kernel.org/tglx/notes-about-netiquette