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 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1237AC433F5 for ; Tue, 28 Sep 2021 19:20:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id EF1E761371 for ; Tue, 28 Sep 2021 19:20:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242467AbhI1TVi (ORCPT ); Tue, 28 Sep 2021 15:21:38 -0400 Received: from mga11.intel.com ([192.55.52.93]:23069 "EHLO mga11.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229678AbhI1TVi (ORCPT ); Tue, 28 Sep 2021 15:21:38 -0400 X-IronPort-AV: E=McAfee;i="6200,9189,10121"; a="221582568" X-IronPort-AV: E=Sophos;i="5.85,330,1624345200"; d="scan'208";a="221582568" Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 Sep 2021 12:19:53 -0700 X-IronPort-AV: E=Sophos;i="5.85,330,1624345200"; d="scan'208";a="554270019" Received: from oogunmoy-mobl1.amr.corp.intel.com (HELO skuppusw-mobl5.amr.corp.intel.com) ([10.212.221.219]) by fmsmga003-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 Sep 2021 12:19:51 -0700 Subject: Re: [PATCH v4 0/8] Implement generic cc_platform_has() helper function To: Borislav Petkov , LKML Cc: Andi Kleen , Andy Lutomirski , Ard Biesheuvel , Baoquan He , Benjamin Herrenschmidt , Christian Borntraeger , Daniel Vetter , Dave Young , David Airlie , Heiko Carstens , Joerg Roedel , "Kirill A. Shutemov" , Maarten Lankhorst , Maxime Ripard , Michael Ellerman , Paul Mackerras , Tom Lendacky , Thomas Zimmermann , Vasily Gorbik , VMware Graphics , Will Deacon , Christoph Hellwig , 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, amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, kexec@lists.infradead.org References: <20210928191009.32551-1-bp@alien8.de> From: "Kuppuswamy, Sathyanarayanan" Message-ID: <80593893-c63b-d481-45f1-42a3a6fd762a@linux.intel.com> Date: Tue, 28 Sep 2021 12:19:49 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Firefox/78.0 Thunderbird/78.13.0 MIME-Version: 1.0 In-Reply-To: <20210928191009.32551-1-bp@alien8.de> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org On 9/28/21 12:10 PM, Borislav Petkov wrote: > From: Borislav Petkov > > Hi all, > > here's v4 of the cc_platform_has() patchset with feedback incorporated. > > I'm going to route this through tip if there are no objections. Intel CC support patch is not included in this series. You want me to address the issue raised by Joerg before merging it? > > Thx. > > Tom Lendacky (8): > x86/ioremap: Selectively build arch override encryption functions > arch/cc: Introduce a function to check for confidential computing > features > x86/sev: Add an x86 version of cc_platform_has() > powerpc/pseries/svm: Add a powerpc version of cc_platform_has() > x86/sme: Replace occurrences of sme_active() with cc_platform_has() > x86/sev: Replace occurrences of sev_active() with cc_platform_has() > x86/sev: Replace occurrences of sev_es_active() with cc_platform_has() > treewide: Replace the use of mem_encrypt_active() with > cc_platform_has() > > arch/Kconfig | 3 + > arch/powerpc/include/asm/mem_encrypt.h | 5 -- > arch/powerpc/platforms/pseries/Kconfig | 1 + > arch/powerpc/platforms/pseries/Makefile | 2 + > arch/powerpc/platforms/pseries/cc_platform.c | 26 ++++++ > arch/powerpc/platforms/pseries/svm.c | 5 +- > arch/s390/include/asm/mem_encrypt.h | 2 - > arch/x86/Kconfig | 1 + > arch/x86/include/asm/io.h | 8 ++ > arch/x86/include/asm/kexec.h | 2 +- > arch/x86/include/asm/mem_encrypt.h | 12 +-- > arch/x86/kernel/Makefile | 6 ++ > arch/x86/kernel/cc_platform.c | 69 +++++++++++++++ > arch/x86/kernel/crash_dump_64.c | 4 +- > arch/x86/kernel/head64.c | 9 +- > arch/x86/kernel/kvm.c | 3 +- > arch/x86/kernel/kvmclock.c | 4 +- > arch/x86/kernel/machine_kexec_64.c | 19 +++-- > arch/x86/kernel/pci-swiotlb.c | 9 +- > arch/x86/kernel/relocate_kernel_64.S | 2 +- > arch/x86/kernel/sev.c | 6 +- > arch/x86/kvm/svm/svm.c | 3 +- > arch/x86/mm/ioremap.c | 18 ++-- > arch/x86/mm/mem_encrypt.c | 55 ++++-------- > arch/x86/mm/mem_encrypt_identity.c | 9 +- > arch/x86/mm/pat/set_memory.c | 3 +- > arch/x86/platform/efi/efi_64.c | 9 +- > arch/x86/realmode/init.c | 8 +- > drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 4 +- > drivers/gpu/drm/drm_cache.c | 4 +- > drivers/gpu/drm/vmwgfx/vmwgfx_drv.c | 4 +- > drivers/gpu/drm/vmwgfx/vmwgfx_msg.c | 6 +- > drivers/iommu/amd/init.c | 7 +- > drivers/iommu/amd/iommu.c | 3 +- > drivers/iommu/amd/iommu_v2.c | 3 +- > drivers/iommu/iommu.c | 3 +- > fs/proc/vmcore.c | 6 +- > include/linux/cc_platform.h | 88 ++++++++++++++++++++ > include/linux/mem_encrypt.h | 4 - > kernel/dma/swiotlb.c | 4 +- > 40 files changed, 310 insertions(+), 129 deletions(-) > create mode 100644 arch/powerpc/platforms/pseries/cc_platform.c > create mode 100644 arch/x86/kernel/cc_platform.c > create mode 100644 include/linux/cc_platform.h > -- Sathyanarayanan Kuppuswamy Linux Kernel Developer